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JP7549725B2 - Fabric for school uniforms and school uniforms - Google Patents

Fabric for school uniforms and school uniforms
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JP7549725B2
JP7549725B2JP2023200894AJP2023200894AJP7549725B2JP 7549725 B2JP7549725 B2JP 7549725B2JP 2023200894 AJP2023200894 AJP 2023200894AJP 2023200894 AJP2023200894 AJP 2023200894AJP 7549725 B2JP7549725 B2JP 7549725B2
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knitted fabric
dtex
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multifilament
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葵 花村
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Asahi Kasei Advance Corp
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本発明は、学生服用編地、その製法、及び該編地を表地に用いた学生服に関する。より詳しくは、本発明は、摩耗耐久性を持ちながらハリコシ、洗濯耐久に優れた撥水性、吸水性を有する学生服用編地、その製法、及び該編地を表地に用いた学生服に関する。The present invention relates to a knitted fabric for school uniforms, a manufacturing method thereof, and school uniforms using the knitted fabric for the outer fabric. More specifically, the present invention relates to a knitted fabric for school uniforms that has excellent water repellency and absorbency, excellent water resistance, excellent washing durability, and excellent water resistance, excellent water repellency ...

従来、学生服の素材としては、ハリコシがあって仕立て栄えがよい織物が主流であった。例えば、以下の特許文献1には、目付が大きく強度を保ちながら、速乾性に優れる織物が提案されているが、該織物はストレッチ性に乏しく、しわになりやすいという欠点がある。他方、近年、快適性やイージーケアの観点から、ストレッチ性に優れ、しわになりにくい編地が着目されている。Traditionally, the mainstream materials for school uniforms have been woven fabrics that are firm and look good when tailored. For example, the following Patent Document 1 proposes a woven fabric that has a large basis weight and maintains strength while also being quick-drying, but the woven fabric has the disadvantage of being poor in stretchability and prone to wrinkling. On the other hand, in recent years, from the standpoint of comfort and easy care, knitted fabrics that are highly stretchable and wrinkle-resistant have been attracting attention.

しかしながら、編地はストレッチ性に優れるものの、擦れによる耐摩耗性や鋭いものに引っかかってループが引き出されてしまうスナッグ現象という欠点がある。この欠点を解消すべく、例えば、以下の特許文献2には、編地の一部に撚り糸を用いて、編み込む糸長比を調整することによって抗スナッグ性を発揮する学生服用編物が提案されている。しかしながら、提案された織物では、スナッグを抑制するために、編地表面は平滑なものに限られてしまい意匠性に欠けるという問題がある。また、合成繊維を使用した学生服は家庭用洗濯機で洗濯できるイージーケア性も求められるが、例えば、染色後加工により施される撥水加工剤は洗濯で脱落しやすく、その耐久性を持たせる方法については提案されていない。However, although knitted fabrics have excellent stretchability, they have drawbacks such as poor resistance to abrasion due to rubbing and the snag phenomenon, in which loops get caught on sharp objects and are pulled out. To overcome these drawbacks, for example, the following Patent Document 2 proposes a knitted fabric for school uniforms that exhibits snag resistance by using twisted yarn in part of the knitted fabric and adjusting the yarn length ratio. However, the proposed woven fabric has a problem in that the knitted surface is limited to a smooth one in order to suppress snags, which results in a lack of design. In addition, school uniforms made of synthetic fibers are required to be easy to care for, so that they can be washed in a home washing machine, but for example, water-repellent finishing agents applied by post-dye processing tend to come off when washed, and no method has been proposed for improving their durability.

特許第5917800号公報Patent No. 5917800特許第6191067号公報Patent No. 6191067

以上の従来技術に鑑み、本発明が解決しようとする課題は、摩耗耐久性を持ちながらハリコシ、洗濯耐久に優れた撥水性、吸水性を有する学生服用編地、その製法、及び該編地を表地に用いた学生服を提供することである。In view of the above-mentioned prior art, the problem that the present invention aims to solve is to provide a knitted fabric for school uniforms that is resistant to abrasion while having excellent firmness, water repellency, and water absorbency with excellent washing durability, a manufacturing method thereof, and school uniforms that use said knitted fabric for the outer fabric.

本発明者らは、上記課題を解決すべく鋭意検討し実験を重ねた結果、一定の太さを有する糸のループを編地表面(おもてめん)で凸になるように編成することで、弱糸が外力から保護されて耐摩耗性が向上し、また、凹部には撥水剤、吸水剤が残存することで、後加工の洗濯耐久性も向上すること、さらに、柄表現も可能になることを予想外に見出し、本発明を完成するに至ったものである。The inventors conducted extensive research and experimentation to solve the above problems, and unexpectedly discovered that by knitting loops of yarn of a certain thickness so that they form a convex shape on the front surface of the knitted fabric, the weak yarn is protected from external forces and wear resistance is improved, and the water repellent and water absorbent remain in the concave parts, improving washing durability in post-processing and also making it possible to express patterns, which led to the completion of the present invention.

すなわち、本発明は以下のとおりのものである。
[1]総繊度75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントAが25重量%以上90重量%未満の混率で、かつ、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBが10重量%超75重量%以下の混率で編成された、ループ密度35~120コース/2.54cm、35~70ウェール/2.54cmの編地であって、該編地は経編地であり、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRc(μm)が120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であり、かつ、該表面(おもてめん)に撥水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1092スプレー法による撥水性が3級以上であることを特徴とする学生服用編地。
[2]総繊度75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントAが25重量%以上90重量%未満の混率で、かつ、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBが10重量%超75重量%以下の混率で編成された、ループ密度35~120コース/2.54cm、35~70ウェール/2.54cmの編地であって、該編地は経編地であり、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRc(μm)が120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であり、かつ、該表面(おもてめん)に吸水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1907滴下法による吸水性が5秒以下であることを特徴とする学生服用編地。
[3]総繊度が50dtex以下の合成繊維マルチフィラメントDの混率が2重量%未満である、前記[1]又は[2]に記載の学生服用編地。
[4]前記合成繊維マルチフィラメントAと前記合成繊維マルチフィラメントBはいずれも、仮撚加工されたポリエステル繊維である、前記[1]~[3]のいずれかに記載の学生服用編地。
[5]前記合成繊維マルチフィラメントAの破断強度が3.5cN/dtex以上であり、かつ、破断伸度が20%以上50%以下である、前記[1]~[4]のいずれかに記載の学生服用編地。
[6]前記合成繊維マルチフィラメントAと前記合成繊維マルチフィラメントBはいずれも300~1200T/mの撚糸である、前記[1]~[5]のいずれかに記載の学生服用編地。
]ウール、ナイロン、アクリル、綿、キュプラ、及びレーヨンからなる群から選ばれる繊維Cを30重量%以下の混率でさらに含む、前記[1]~[]のいずれかに記載の学生服用編地。
]前記編地の表面(おもてめん)の、JIS L 1058 D-3法に準拠した15時間試験後のスナッグ性が3級以上である、前記[1]~[]のいずれかに記載の学生服用編地。
]以下の工程:
熱セット後に総繊度が75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下となる合成繊維マルチフィラメントAと、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBとを用いて編地を編成する工程;及び
得られた編地を熱セットする工程;
を含む、前記[1]~[]のいずれかに記載の学生服用編地の製造方法。
10]前記[1]~[]のいずれかに記載の学生服用編地の表面(おもてめん)を表地に用いた学生服。
That is, the present invention is as follows.
[1] A loop knitted fabric in which synthetic fiber multifilament A has a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of 25% by weight to less than 90% by weight, and synthetic fiber multifilament B has a total fineness of 1/3 to 2/3 of the total fineness of synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of more than 10% by weight to 75% by weight. A knitted fabric having a thread density of 35 to 120 courses/2.54 cm and 35 to 70 wales/2.54 cm,the knitted fabric being a warp knitted fabric , the synthetic fiber multifilament A is present on the outermost surface (front) of the knitted fabric, and when the line roughness of the surface (front) of the knitted fabric is measured in the transverse direction over a length of 10 mm at a magnification of 12 times using a one-shot 3D shape measuring instrument VR-3000 manufactured by Keyence Corporation, the average height Rc of the contour curve element isA knitted fabric for school uniforms, characterized in that when the surface (front) of the knitted fabric is rubbed with a pressure load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of frictions at which a yarn present on the surface (front) breaks is 30,000 or more, and the surface (front) is treated with a water-repellent finish, and the water-repellent property isgrade 3 or higher after 30 washes according to JIS L 0217 103 method as measured by a JIS L 1092 spray method.
[2] A loop knitted fabric in which synthetic fiber multifilament A has a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of 25% by weight to less than 90% by weight, and synthetic fiber multifilament B has a total fineness of 1/3 to 2/3 of the total fineness of synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of more than 10% by weight to 75% by weight. A knitted fabric having a thread density of 35 to 120 courses/2.54 cm and 35 to 70 wales/2.54 cm,the knitted fabric being a warp knitted fabric , the synthetic fiber multifilament A is present on the outermost surface (front surface) of the knitted fabric, and when the line roughness of the surface (front surface) of the knitted fabric is measured in the transverse direction over a length of 10 mm at a magnification of 12 times using a one-shot 3D shape measuring instrument VR-3000 manufactured by Keyence Corporation, the average height Rc of the contour curve element isA knitted fabric for school uniforms, characterized in that when the surface (front) of the knitted fabric is rubbed with a pressure load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of frictions at which a yarn present on the surface (front) breaks is 30,000 or more, and the surface (front) is treated to have a water absorption property, and the water absorption property is 5 seconds or less after 30 washes according to the JIS L 1907 dropping method in accordance with the JIS L 0217 103 method.
[3] The knitted fabric for school uniforms according to [1] or [2], in which the blending ratio of synthetic fiber multifilament D having a total fineness of 50 dtex or less is less than 2% by weight.
[4] The knitted fabric for school uniform according to any one of [1] to [3], wherein the synthetic fiber multifilament A and the synthetic fiber multifilament B are both polyester fibers that have been false-twisted.
[5] The knitted fabric for school uniform according to any one of [1] to [4], wherein the synthetic fiber multifilament A has a breaking strength of 3.5 cN/dtex or more and a breaking elongation of 20% or more and 50% or less.
[6] The knitted fabric for school uniform according to any one of [1] to [5], wherein the synthetic fiber multifilament A and the synthetic fiber multifilament B are both twisted yarns of 300 to 1200 T / m.
[7 ] The knitted fabric for school uniforms according to any one of [1] to [6 ] above, further comprising fiber C selected from the group consisting of wool, nylon, acrylic, cotton, cupra, and rayon in a blending ratio of 30% by weight or less.
[8 ] The knitted fabric for school uniforms according to any one of [1] to [7 ], wherein the surface of the knitted fabric has a snag resistance ofgrade 3 or higher after a 15-hour test in accordance with JIS L 1058 D-3.
[9 ] The following steps:
a step of knitting a fabric using synthetic fiber multifilament A having a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex after heat setting, and synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex to 5.0 dtex; and a step of heat setting the obtained knitted fabric;
A method for producing the knitted fabric for school uniforms according to any one of [1] to [8 ] above.
[10 ] A school uniform using the front surface of the school uniform knitted fabric described in any one of [1] to [8 ] as an outer material.

本発明に係る学生服用編地を表地に用いれば、編物の欠点であるスナッグや耐摩耗性を向上させながら、ハリコシがあり、さらに染色加工時に付帯加工された撥水性または吸水性の耐久性が改善された学生服を得ることができる。By using the knitted fabric for school uniforms according to the present invention as the outer material, it is possible to obtain school uniforms that have improved snag and abrasion resistance, which are drawbacks of knitted fabrics, while also having firmness and improved durability of the water repellency or water absorbency that is added during the dyeing process.

参考例1の丸編地の表面(おもてめん)の断面の電子顕微鏡写真である。1 is an electron microscope photograph of a cross section of the front surface of the circular knitted fabric ofReference Example 1.従来技術で得られた丸編地の表面(おもてめん)の断面の電子顕微鏡写真である。1 is an electron microscope photograph of a cross section of the front surface of a circular knitted fabric obtained by a conventional technique.参考例1、2並びに比較例1、2の丸編地の編立図である。FIG. 2 is a knitting diagram of the circular knitted fabrics ofReference Examples 1 and 2and Comparative Examples 1 and 2.従来技術の丸編地例の編立図である。FIG. 1 is a knitting diagram of an example of a circular knitted fabric according to the prior art.実施例3の経編地(一例)の編立図である。FIG. 11 is a knitting diagram of a warp knitted fabric (one example) of Example 3.輪郭曲線要素の平均高さRcの求め方の説明図である。FIG. 13 is an explanatory diagram of how to determine the average height Rc of a profile curve element.

以下、本発明の実施形態を詳細に説明する。
本実施形態の学生服用編地は、総繊度75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントAが25重量%以上90重量%未満の混率で、かつ、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBが10重量%超75重量%以下の混率で編成された、ループ密度35~120コース/2.54cm、35~70ウェール/2.54cmの編地であって、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRcが120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であり、かつ、該表面(おもてめん)に撥水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1092スプレー法による撥水性が3級以上であるか、又は該表面(おもてめん)に吸水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1907滴下法による吸水性が5秒以下であることを特徴とする。
Hereinafter, an embodiment of the present invention will be described in detail.
The knitted fabric for school uniforms of this embodiment is a loop knitted fabric having a total fineness of more than 75 dtex and not more than 220 dtex, a synthetic fiber multifilament A having a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of 25% by weight to less than 90% by weight, and a synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex to 5.0 dtex in a mixing ratio of more than 10% by weight to 75% by weight. A knitted fabric having a thread density of 35 to 120 courses/2.54 cm and 35 to 70 wales/2.54 cm, the synthetic fiber multifilament A is present on the outermost surface (front) of the knitted fabric, and when the line roughness of the surface (front) of the knitted fabric is measured in the transverse direction over a length of 10 mm at a magnification of 12 times using a One-Shot 3D Shape Measuring Instrument VR-3000 manufactured by Keyence Corporation, the average height Rc of the contour curve element is 120 or more and 300 or less, and The knitted fabric is characterized in that, when the surface (front) of the knitted fabric is rubbed with a pressing load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of rubs at which the yarn present on the surface (front) breaks is 30,000 or more, and the surface (front) is water-repellent and has a water repellency of grade 3 or higher as measured by the JIS L 1092 spray method after 30 washes in accordance with the JIS L 0217 103 method, or the surface (front) is water-absorbent and has a water absorbency of 5 seconds or less as measured by the JIS L 1907 drop method after 30 washes in accordance with the JIS L 0217 103 method.

[合成繊維マルチフィラメントA]
本実施形態の学生服用編地には、熱セット後に総繊度が75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下となる合成繊維マルチフィラメントA(以下、耐摩耗糸ともいう。)が、該編地の表面(おもてめん)の最も外側である最表面(おもてめん)に、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRcが120以上300以下となるように存在する。合成繊維マルチフィラメントAの熱セット後の総繊度は、84dtex以上176dtex以下、単糸繊度1.5dtex以上3.8以下であることが好ましい。総繊度が220dtexを超え、単糸繊度が5.0dtexを超えると、繊維の剛性が高くなり、曲げがたく、編地の風合いが硬くなる。総繊度が75dtex以下、単糸繊度1.5dtex未満であると、繊維の強度が低く、耐摩耗性や抗スナッグ性が低下する。合成繊維マルチフィラメントAは、編地表面(おもてめん)で十分な凸をつくるために、25重量%以上90重量%未満の混率で交編されることが好ましい。混率が25重量%未満であると、編地表面で凸になるループが足りず弱糸を摩耗から守りづらくなる。混率を25重量%以上とするためには、摩耗されることとなる編地の表面(おもてめん)の表面積の50%以上を合成繊維マルチフィラメントAが占めるように編地を編成すればよい。
[Synthetic fiber multifilament A]
In the knitted fabric for school uniforms of this embodiment, synthetic fiber multifilament A (hereinafter also referred to as abrasion-resistant yarn) having a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex after heat setting is present on the outermost surface (front) of the knitted fabric such that when the line roughness of the surface (front) of the knitted fabric is measured in the transverse direction over a length of 10 mm at a magnification of 12 times using a Keyence One-Shot 3D Shape Measuring Instrument VR-3000, the average height Rc of the profile curve element is 120 to 300. The total fineness of the synthetic fiber multifilament A after heat setting is preferably 84 dtex to 176 dtex and a single yarn fineness of 1.5 dtex to 3.8. If the total fineness exceeds 220 dtex and the single yarn fineness exceeds 5.0 dtex, the rigidity of the fiber becomes high, making it difficult to bend and the texture of the knitted fabric becomes hard. If the total fineness is 75 dtex or less and the single yarn fineness is less than 1.5 dtex, the strength of the fiber is low, and the abrasion resistance and anti-snag properties are reduced. In order to create sufficient convexity on the knitted fabric surface (front), the synthetic fiber multifilament A is preferably interwoven at a mixing ratio of 25% by weight or more and less than 90% by weight. If the mixing ratio is less than 25% by weight, there will not be enough loops that will form a convexity on the knitted fabric surface, making it difficult to protect the weak yarn from abrasion. In order to make the mixing ratio 25% by weight or more, the knitted fabric may be knitted so that the synthetic fiber multifilament A occupies 50% or more of the surface area of the knitted fabric surface (front) that will be abraded.

合成繊維マルチフィラメントAは、糸物性上、強力が高いものが適しており、破断強度は3.5cN/dtex以上であり、かつ、破断伸度は20%以上50%以下であることが好ましい。より好ましくは、破断強度は4.0cN/dtex以上、さらに好ましくは4.2cN/dtex以上である。破断強度が3.5cN/dtex未満であると、耐摩耗性が良好でない。他方、破断強度は大きいほど摩耗性向上には好ましい特性値であるが、6.0cN/dtex以上では繊維が硬くなる。破断伸度は、より好ましくは30%以上45%以下である。破断伸度が20%未満であると、フィブリル化が起こりやすく、良好な耐摩耗性は得られず、他方、破断伸度が50%を超えると、破断強度を3.5cN/dtex以上とすることが困難となる。合成繊維マルチフィラメントAの製造方法としては、例えば、特許第5700708号公報に記載されているような、延伸処理後、特定範囲の弛緩熱処理を行い、繊維の物性、特に強度、伸度、応力―歪曲線における微分ヤング率を特定範囲に規定したもの、例えば、旭化成株式会社製「エルマックス/ELMAX」(登録商標)が挙げられる。In terms of yarn properties, synthetic fiber multifilament A is suitable for high strength, with a breaking strength of 3.5 cN/dtex or more and a breaking elongation of 20% to 50%. More preferably, the breaking strength is 4.0 cN/dtex or more, and even more preferably 4.2 cN/dtex or more. If the breaking strength is less than 3.5 cN/dtex, the abrasion resistance is not good. On the other hand, the higher the breaking strength, the more preferable the characteristic value for improving abrasion resistance, but if it is 6.0 cN/dtex or more, the fiber becomes hard. The breaking elongation is more preferably 30% to 45%. If the breaking elongation is less than 20%, fibrillation is likely to occur and good abrasion resistance cannot be obtained, while if the breaking elongation exceeds 50%, it becomes difficult to achieve a breaking strength of 3.5 cN/dtex or more. As a method for producing synthetic multifilament A, for example, as described in Patent No. 5700708, a specific range of relaxation heat treatment is performed after drawing, and the physical properties of the fiber, particularly strength, elongation, and differential Young's modulus in the stress-strain curve, are specified within a specific range, such as "ELMAX" (registered trademark) manufactured by Asahi Kasei Corporation.

[合成繊維マルチフィラメントB]
また、本実施形態の学生服用編地には、合成繊維マルチフィラメントA(耐摩耗糸A)でできたループが編地表面(おもてめん)でより凸になりやすいよう、熱セット後に該耐摩耗糸Aの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下となる合成繊維マルチフィラメントBが10重量%超75重量%以下の混率となるように存在する。
合成繊維マルチフィラメントBの単糸繊度は1.5dtex以上3.8dtex以下が好ましい。合成繊維マルチフィラメントBの混率が75重量%以上になると、摩擦に弱い細い糸が編地の表面(おもてめん)を多く占めることになり、編地の耐摩耗性が低下する。編地を交編する際に、総繊度の太い耐摩耗糸Aの送り込み長を長くしてループを盛り上がりやすくすることができる。これにより、編地に耐摩耗性や抗スナッグ性を持たせながら柄表現を多彩にすることが可能となる。
合成繊維マルチフィラメントの総繊度は上記の範囲であればよいが、編地の強度、耐摩耗性を確保するために、50dtexを超えることが好ましい。
[Synthetic fiber multifilament B]
In addition, in the knitted fabric for school uniforms of this embodiment, synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the abrasion-resistant yarn A and a single yarn fineness of 1.5 dtex or more and 5.0 dtex or less after heat setting is present in a blend ratio of more than 10% by weight and not more than 75% by weight, so that loops made of synthetic fiber multifilament A (abrasion-resistant yarn A) are more likely to become convex on the surface of the knitted fabric (front).
The single yarn fineness of the synthetic multifilament fiber B is preferably 1.5 dtex or more and 3.8 dtex or less. If the blending ratio of the synthetic multifilament fiber B is 75% by weight or more, the surface of the knitted fabric will be dominated by thin yarns that are weak against friction, and the abrasion resistance of the knitted fabric will decrease. When the knitted fabric is interwoven, the feed length of the thick abrasion-resistant yarn A with a total fineness can be increased to make the loops more likely to rise. This makes it possible to provide the knitted fabric with abrasion resistance and snag resistance while providing a variety of pattern expressions.
The total fineness of the synthetic multifilament fiber may be within the above range, but in order to ensure the strength and abrasion resistance of the knitted fabric, it is preferable that it exceeds 50 dtex.

本発明の学生服用編地の編成方法は特に限定されず、経編地でもヨコ編地でもよい。ヨコ編地、特に丸編地において、編地表面に合成繊維マルチフィラメントAが凸の構造を形成させるための方法としては、前述した糸Bによって合成繊維マルチフィラメントAを凸構造にする上に、合成繊維マルチフィラメントAからなるループと合成繊維マルチフィラメントBからなるループを交互に配置させて、繊度差によるループの凹凸を形成させる方法が好ましく、さらに総繊度の太い合成繊維マルチフィラメントAのランナー長を合成繊維マルチフィラメントBより長くする、製品表側に編み込まれるA糸に裏側からB糸をタック組織で編み込んで盛り上げる柄を作るなど、編組織に合わせて適宜条件を選択して調整することができる。The knitting method of the knitted fabric for school uniforms of the present invention is not particularly limited, and may be warp knitting or weft knitting. In weft knitting, particularly in circular knitting, the method for forming a convex structure of synthetic multifilament A on the knitted surface is preferably a method in which the synthetic multifilament A is made convex by the above-mentioned yarn B, and loops made of synthetic multifilament A and loops made of synthetic multifilament B are alternately arranged to form unevenness of the loops due to the difference in fineness. In addition, the runner length of the synthetic multifilament A with a large total fineness is made longer than that of the synthetic multifilament B, or a pattern is created by knitting yarn B from the back side into yarn A knitted on the front side of the product in a tuck structure, and other suitable conditions can be selected and adjusted according to the knitting structure.

かかる繊度差と交編する重量混率と編組織の組み合わせにより、本実施形態の学生服用編地では、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRcが120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であるものとなる。
輪郭曲線要素の平均高さRcが120以上300以下であれば、耐摩耗糸のループが編地の表面(おもてめん)に十分に露出したものといえる。
By combining such a difference in fineness, the weight blend ratio of the interwoven yarns, and the knitting structure, in the knitted fabric for school uniforms of this embodiment, the synthetic fiber multifilament A is present on the outermost surface (front) of the knitted fabric, and when the line roughness of the surface (front) of the knitted fabric is measured in the horizontal direction over a length of 10 mm at a magnification of 12 times using a one-shot 3D shape measuring instrument VR-3000 manufactured by Keyence Corporation, the average height Rc of the contour curve element is 120 to 300, and when the surface (front) of the knitted fabric is rubbed with a pressing load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of frictions until the yarn present on the surface (front) breaks is 30,000 or more.
When the average height Rc of the contour curve elements is 120 or more and 300 or less, it can be said that the loops of the abrasion-resistant yarn are sufficiently exposed on the surface of the knitted fabric.

以下、図6を参照して、複合加工糸が現れている編地表面(おもてめん)の輪郭曲線要素の平均高さRcについて以下説明する。
編組織図に示す供給口1に合成繊維マルチフィラメントAを用いれば、編地作製を経て編地表面(おもてめん)に、該複合加工糸のニットループが現れる。「編地底面」とは、ニットループとニットループの間に存在する空間の底部であり、「編地頂点」とは、ニットループの頂点を意味する。測定曲線に示すように、輪郭曲線要素とは、線粗さ測定長さ(10mm)における、一つの(波の)編地底面の深さと編地頂点の高さの和である。輪郭曲線要素の平均高さRcとは、輪郭曲線要素の(全ての波の)平均値である。すなわち編地の表面に凹凸が現れれば、Rc値は高くなる。本実施形態の学生服用編地では、Rc値は120以上300以下である必要があり、好ましくは130以上250以下である。表面に凹凸が形成されると、強力な合成繊維マルチフィラメントAが存在する凸部は耐摩耗性を発揮し、凹部には染色後加工によって付加された加工剤が摩耗から守られ、耐久性を発揮することができる。Rc値が120未満であると、編地表面は平滑傾向であり、耐摩耗性や抗スナッグ性はよいが、編地全面が摩耗されるため、加工剤が残存しにくく耐久性が低下してしまう。他方、Rc値が300を超えると、凹凸が高すぎて鋭いものなどに引っ掛かりやすくなり、スナッギング悪化の原因となる。
The average height Rc of the contour curve elements on the front surface of the knitted fabric where the composite textured yarn appears will be described below with reference to FIG.
If the synthetic fiber multifilament A is used at the supply port 1 shown in the knitting structure diagram, the knit loops of the composite textured yarn will appear on the knitted fabric surface (front surface) after the knitted fabric is produced. The "knitted fabric bottom surface" refers to the bottom of the space between the knitted loops, and the "knitted fabric apex" refers to the apex of the knitted fabric. As shown in the measurement curve, the profile curve element is the sum of the depth of one (wave) knitted fabric bottom surface and the height of the knitted fabric apex in the line roughness measurement length (10 mm). The average height Rc of the profile curve element is the average value (of all waves) of the profile curve element. In other words, if unevenness appears on the knitted fabric surface, the Rc value will be high. In the knitted fabric for student uniforms of this embodiment, the Rc value must be 120 to 300, and preferably 130 to 250. When unevenness is formed on the surface, the protruding parts where the strong synthetic fiber multifilament A exists exhibit abrasion resistance, and the recessed parts are protected from abrasion by the processing agent added by post-dyeing processing, and can exhibit durability. If the Rc value is less than 120, the knitted fabric surface tends to be smooth and has good abrasion resistance and snag resistance, but the entire knitted fabric is worn away, making it difficult for the processing agent to remain and reducing durability. On the other hand, if the Rc value exceeds 300, the unevenness is too high and the knitted fabric is easily caught by sharp objects, causing snagging to worsen.

合成繊維マルチフィラメントAと合成繊維マルチフィラメントBはいずれも、仮撚加工されたポリエステル繊維であることができる。Both synthetic multifilament fiber A and synthetic multifilament fiber B can be polyester fibers that have been false-twisted.

本実施形態の学生服用編地において、熱セット後に総繊度20dtex以上50dtex以下で、沸水収縮率が10%以上の合成繊維マルチフィラメントDをさらに混用することによっても、当該凹凸を強調することができるが、特殊な繊維をさらに混用することで、耐久性、染色性等の管理が煩雑になること、またコスト上の点から、本発明では総繊度50dtex以下の合成繊維マルチフィラメントを混用しないか、混用しても混率が2重量%未満であることが好ましい。In the knitted fabric for school uniforms of this embodiment, the unevenness can also be emphasized by further mixing in synthetic fiber multifilament D with a total fineness of 20 dtex to 50 dtex and a boiling water shrinkage rate of 10% or more after heat setting. However, the further mixing in of special fibers makes it difficult to manage durability, dyeability, etc., and from the standpoint of cost, it is preferable in this invention not to mix in synthetic fiber multifilament with a total fineness of 50 dtex or less, or if mixed, the mixing rate is less than 2% by weight.

本実施形態の学生服用編地のループ密度は、35~120コース/2.54cm、35~70ウェール/2.54cmであり、好ましくは40~100コース/インチ(2.54cm)、40~65ウェール/インチ(2.54cm)である。ループ密度が35コース、35ウェール/インチ未満であると、編地上で凸になっている耐摩耗糸Aのループ間隔が離れる原因となり、弱糸が表面にさらされて摩耗される原因となる。他方、120コース/インチ、70ウェール/インチを超えると、ループ密度が高すぎて、通気度やストレッチ性が低下し、快適性に悪影響を及ぼす。The loop density of the knitted fabric for school uniforms in this embodiment is 35 to 120 courses/2.54 cm, 35 to 70 wales/2.54 cm, and preferably 40 to 100 courses/inch (2.54 cm), 40 to 65 wales/inch (2.54 cm). If the loop density is less than 35 courses/inch, 35 wales/inch, the loop spacing of the abrasion-resistant yarn A, which is convex on the knitted surface, will become wider, causing the weak yarn to be exposed to the surface and become worn. On the other hand, if it exceeds 120 courses/inch, 70 wales/inch, the loop density will be too high, reducing breathability and stretchability, and adversely affecting comfort.

経編地においても、同様に、設計組織に合わせて合成繊維マルチフィラメントAとBの整経本数とガイドへ通す配列を調整することによって所定の重量混率となるようにすればよい。本実施形態の学生服用編地を経編機で編成する場合、スナッグやピリングといった生地の物性を保持する点から、ニードル面を製品表側として扱うことが好ましい。凹凸を形成するためには、A糸をバック筬に、B糸をフロント筬又はミドル筬に編み込むことが好ましく、例えば、A糸とB糸を各筬のガイドに一本交互に通した1in1outで交編してストライプ調にする方法が挙げられ、これによって前述の丸編地同様の表面状態を達成することができる。Similarly, in warp knitted fabrics, the number of warps of synthetic multifilament A and B and the arrangement of the threads passing through the guides can be adjusted to match the design structure to achieve a desired weight mix ratio. When knitting the knitted fabric for school uniforms of this embodiment using a warp knitting machine, it is preferable to treat the needle surface as the front side of the product in order to maintain the physical properties of the fabric, such as snags and pilling. In order to form unevenness, it is preferable to knit yarn A into the back reed and yarn B into the front reed or middle reed. For example, a method can be used in which yarn A and yarn B are interwoven in a 1-in-1-out pattern, with one thread passing through the guide of each reed alternately, to create a striped look, which can achieve a surface state similar to that of the circular knitted fabric described above.

前記したように、合成繊維マルチフィラメントA、Bはいずれも、ポリエステルからなり、仮撚加工されたものであることができる。ポリエステルは、任意の方法によって合成したもので構わない。例えば、ポリエステルの場合、テレフタル酸とエチレングリコールとを直接エステル化学反応させるか、テレフタル酸ジメチルなどのテレフタル酸とエチレングリコールとをエステル交換反応させるか、又はテレフタル酸ジメチルなどのテレフタル酸の低級アルキルエステエルとエチレングリコールとをエステル交換反応させるか、又はテレフタル酸とエチレンオキサイドとを反応させるかして、テレフタル酸のグリコールエステル及び/又はその低重合体を生成させる第1段階の反応と、第1段階の反応生成物を減圧下加熱して所望の重合度になるまで重縮合反応させる第2段階の反応と、によって製造されたものであることができる。また、単糸の断面形状としては、特に制限はなく通常の丸断面でもよいし、異型断面形状であってもよい。具体的な異型断面形状としては、三角、四角、十字、扁平、W型、I型、くびれ付扁平型などが挙げられる。As described above, both of the synthetic fiber multifilaments A and B can be made of polyester and can be false twisted. The polyester can be synthesized by any method. For example, in the case of polyester, it can be produced by a first-stage reaction in which terephthalic acid and ethylene glycol are directly esterified, or terephthalic acid such as dimethyl terephthalate is transesterified with ethylene glycol, or a lower alkyl ester of terephthalic acid such as dimethyl terephthalate is transesterified with ethylene glycol, or terephthalic acid is reacted with ethylene oxide, to produce a glycol ester of terephthalic acid and/or a low polymer thereof, and a second-stage reaction in which the reaction product of the first stage is heated under reduced pressure and polycondensed to a desired degree of polymerization. The cross-sectional shape of the single yarn is not particularly limited and may be a normal round cross-section or an irregular cross-section. Specific irregular cross-sectional shapes include a triangle, a square, a cross, a flat, a W-shape, an I-shape, and a flat shape with a constriction.

前記ポリエステル繊維には、必要に応じて艶消し剤(酸化チタン化合物)、紫外線吸収剤、微細孔形成剤(有機スルホン酸金属塩)、着色防止剤、熱安定剤、難燃剤(三酸化アンチモン)、蛍光増白剤、着色顔料、帯電防止剤(スルホン酸金属塩)、吸湿剤(ポリオキシアルキレングリコール)、抗菌剤のような無機粒子の1種類以上が0.1重量%以上含まれていてもよい。The polyester fiber may contain 0.1% by weight or more of one or more types of inorganic particles, such as matting agents (titanium oxide compounds), ultraviolet absorbers, micropore forming agents (organic metal sulfonates), color inhibitors, heat stabilizers, flame retardants (antimony trioxide), fluorescent brighteners, color pigments, antistatic agents (metal sulfonates), moisture absorbents (polyoxyalkylene glycols), and antibacterial agents, as necessary.

本実施形態の学生服用編地は、丸編地であり、該編地の最表面(おもてめん)に、前記合成繊維マルチフィラメントAのニットループが存在し、かつ、該合成繊維マルチフィラメントと前記合成繊維マルチフィラメントBはいずれも1300~1900T/mの撚糸であることができる。
合成長繊維は特有の光沢を有しており、これを編地にした際に表面がぎらつく原因となって安っぽく見えてしまう。合成繊維に撚りをかけることで、編地のぎらつきを消失させながらハリコシをだし、学生服として好ましいウールのようなシャリ感を与えることができる。
本実施形態の学生服用編地が丸編地である場合、合成繊維マルチフィラメントAとBの撚り回数は1300~1900T/mが好ましい。1900T/mを超えると、トルクが強すぎて編み立て性が悪化する。他方、1300T/m未満であると、合成繊維のテカリ消失やシャリ感の付与が不十分となる。
The knitted fabric for school uniforms in this embodiment is a circular knitted fabric, and knit loops of the synthetic fiber multifilament A are present on the outermost surface (front surface) of the knitted fabric, and both the synthetic fiber multifilament A and the synthetic fiber multifilament B can be twisted yarns of 1300 to 1900 T/m.
Synthetic long fibers have a unique luster, which makes the surface of the knitted fabric look shiny and cheap. By twisting the synthetic fibers, the luster is eliminated and the knitted fabric becomes firm and stiff, giving it a wool-like crispness that is desirable for school uniforms.
When the knitted fabric for school uniforms of this embodiment is a circular knitted fabric, the number of twists of the synthetic multifilament A and B is preferably 1300 to 1900 T/m. If it exceeds 1900 T/m, the torque is too strong and the knitting property deteriorates. On the other hand, if it is less than 1300 T/m, the gloss of the synthetic fiber disappears and the crisp feeling is not sufficiently given.

また、本実施形態の学生服用編地は、経編地であり、かつ、前記合成繊維マルチフィラメントAと前記合成繊維マルチフィラメントBはいずれも300~1200T/mの撚糸であることができる。
経編地は、製造時において、丸編みよりも、トルクが編み立て性に与える影響が大きいため、合成繊維マルチフィラメントAとBの撚り回数は300~1200T/mが好ましい。
In addition, the knitted fabric for school uniforms in this embodiment is a warp knitted fabric, and both the synthetic fiber multifilament A and the synthetic fiber multifilament B can be twisted yarns of 300 to 1200 T/m.
In the case of warp knitted fabrics, the torque has a greater effect on knitting properties than in the case of circular knitting during production, so the number of twists of the synthetic multifilament fibers A and B is preferably 300 to 1200 T/m.

[繊維C]
本実施形態の学生服用編地は、ウール、ナイロン、綿、アクリル、キュプラ、及びレーヨンからなる群から選ばれる繊維Cを30重量%以下の混率でさらに含むことができる。
本実施形態の学生服用編地は、ポリエステル繊維のみからなる編物であってもよいが、他の繊維が交編されていてもよく、非制限的に、例えば、ナイロン、アクリル、キュプラ、レーヨン等の繊維で交編してもよい。他の繊維としてキュプラ、レーヨンなど強度が低い繊維を交編するときは、編地の表面(おもてめん)側に露出しない組織に、30重量%以下の混率で編み込むことが好ましい。
尚、総繊度50dtex以下の合成繊維マルチフィラメント(以下の繊維Dを包含する)は、耐摩耗性の観点から、混用しないか、混用しても混率が2重量%未満であることが好ましい。
[Fiber C]
The knitted fabric for school uniforms in this embodiment may further contain fiber C selected from the group consisting of wool, nylon, cotton, acrylic, cupra, and rayon in a blend ratio of 30% by weight or less.
The knitted fabric for school uniforms in this embodiment may be a knitted fabric made of polyester fibers only, but may also be interwoven with other fibers, such as, but not limited to, nylon, acrylic, cupra, rayon, etc. When interwoven with low-strength fibers such as cupra and rayon as other fibers, it is preferable to knit them at a mixing rate of 30% by weight or less in a structure that is not exposed on the surface side of the knitted fabric.
From the viewpoint of abrasion resistance, it is preferable that synthetic multifilament fibers having a total fineness of 50 dtex or less (including fiber D below) are not mixed, or if mixed, the mixing ratio is less than 2% by weight.

本実施形態の学生服用編地は、前記した合成繊維マルチフィラメントA、B、場合により繊維Cを用いて通常の編機を使用して容易に作製することができる。また、編地の染色加工として、通常の染色仕上げ工程を適用できる。例えば、液流染色機、ウインス染色機等を任意に選択することができる。ピンテンターによる熱セットも生地にシワがよらないように適度に引き伸ばせばよい。The knitted fabric for school uniforms in this embodiment can be easily produced using the above-mentioned synthetic multifilament fibers A and B, and optionally fiber C, using a normal knitting machine. In addition, normal dyeing and finishing processes can be applied to dye the knitted fabric. For example, a liquid jet dyeing machine, a winch dyeing machine, etc. can be selected as desired. Heat setting using a pin tenter can also be done by stretching the fabric appropriately so as not to cause wrinkles.

[繊維D]
また、本実施形態の学生服用編地には、熱セット後に総繊度20dtex以上50dtex以下、単糸繊度1.5dtex以上5.0dtex以下となる沸水収縮率が10%以上の合成繊維マルチフィラメントDが2重量%未満で編み込まれてもよい。合成繊維マルチフィラメントDの沸水収縮率を、合成繊維マルチフィラメントA、Bの沸水収縮率よりも、5%以上高くすることにより、沸水収縮率10%以上の合成繊維マルチフィラメントD(以下、収縮糸Dともいう。)が、染色加工時、熱セット時の熱で収縮し前記した繊度を持ち、摩耗に強い合成繊維マルチフィラメントAのループが、編地の表面(おもてめん)に配し、耐摩耗性の糸で凸部を有する構造を形成し、もって編地の耐摩耗性を向上させるとともに、学生服用編地として好ましいハリコシを付与する傾向がさらに強くなる。
[Fiber D]
In addition, the knitted fabric for student uniforms of this embodiment may be knitted with less than 2% by weight of synthetic fiber multifilament D having a boiling water shrinkage rate of 10% or more, which has a total fineness of 20 dtex to 50 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex after heat setting. By making the boiling water shrinkage rate of synthetic fiber multifilament D 5% or more higher than the boiling water shrinkage rates of synthetic fiber multifilaments A and B, the synthetic fiber multifilament D having a boiling water shrinkage rate of 10% or more (hereinafter also referred to as shrinkage thread D) shrinks with heat during dyeing and heat setting and has the above-mentioned fineness, and the loops of synthetic fiber multifilament A, which is resistant to wear, are arranged on the surface of the knitted fabric, forming a structure having convex parts with wear-resistant threads, thereby improving the wear resistance of the knitted fabric and further strengthening the tendency to impart firmness preferable for knitted fabrics for student uniforms.

かくして得られた、本実施形態の学生服用編地は、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であるものとなる。学生服(学生衣料)は最低3年と着用期間が長く、一日の着用時間も長くなるため摩耗による耐久性はきわめて重要である。発明者らは、通常織物に適用される全方向への摩耗を行うマーチンデール法による過酷な条件で試験を繰り返し、摩耗回数が30000回以上というこれまで達成されていなかった学生服用編地の耐摩耗性を達成した。
本実施形態の学生服用編地では、該編地の表面(おもてめん)の、JIS L 1058 D-3法に準拠した15時間試験後のスナッグ性が3級以上であることが好ましい。
The knitted fabric for school uniforms of this embodiment thus obtained has a friction count of 30,000 or more times at which the yarns present on the surface (front) of the fabric break when the surface (front) is rubbed with a Martindale abrasion tester specified in JIS L 1096 under a pressure load of 9.0±0.2 kPa. Since school uniforms (student clothing) are worn for a long period of time, at least three years, and are worn for long periods each day, durability against abrasion is extremely important. The inventors have repeatedly tested under harsh conditions using the Martindale method, which is typically applied to woven fabrics and involves abrasion in all directions, and have achieved a previously unachieved abrasion resistance of 30,000 or more times of abrasion for knitted fabrics for school uniforms.
In the knitted fabric for school uniforms of this embodiment, it is preferable that the surface of the knitted fabric has a snag resistance ofgrade 3 or higher after a 15-hour test in accordance with JIS L 1058 D-3 method.

また、本実施形態の学生服用編地を表地に用いて学生服を作製し、該表地に撥水加工を施すとき、又は、学生服を作製する前に該編地自体に撥水加工を施すとき、JIS L 0217 103法に準じた洗濯30回後のJIS L 1092スプレー法による撥水性が3級以上である学生服を製造することができる。
本実施形態の学生服用編地では、編地表面(おもてめん)に凹凸構造が形成されることによって、撥水加工剤が固着する表面積が増加する。これにより編地表面に撥水剤が付着しやすくなり繰り返し洗濯が行われても残存する撥水剤が多くなるため耐久性が長持ちしやすくなる。図1は、実施例1の編地を切って、その断面から表面形態を電子顕微鏡で撮影したものである。ループによって編地表面に凹凸が形成されている様子が観察できる。
他方、図2は、従来技術で得られた平滑な丸編地の表面形態を撮影したものである。ループが同じ高さで並び平滑である様子が観察できる。尚、図2に示す従来技術で得られた編地は、以下の[従来技術の丸編地の製造方法]で製造したものであり、特定の糸使い及び表面平滑化により抗スナッグ性は改良されたが、意匠性が劣り、また撥水加工や親水加工を行う場合に、剤が洗濯で脱落しやすく加工耐久性が劣る。
Furthermore, when the knitted fabric for school uniforms of this embodiment is used as the outer fabric to produce school uniforms and a water-repellent finish is applied to the outer fabric, or when the knitted fabric itself is water-repellent finished before the school uniforms are produced, it is possible to produce school uniforms having a water-repellent property ofgrade 3 or higher after 30 washes according to the JIS L 1092 spray method in accordance with the JIS L 0217 103 method.
In the knitted fabric for school uniforms of this embodiment, an uneven structure is formed on the knitted fabric surface (front), which increases the surface area to which the water repellent agent adheres. This makes it easier for the water repellent agent to adhere to the knitted fabric surface, and even after repeated washing, more water repellent agent remains, which makes the fabric more durable. Figure 1 shows the surface morphology of the cross section of the knitted fabric of Example 1, photographed with an electron microscope. It can be observed how the unevenness formed on the knitted fabric surface is caused by the loops.
On the other hand, Figure 2 is a photograph of the surface morphology of a smooth circular knitted fabric obtained by the conventional technology. It can be observed that the loops are arranged at the same height and are smooth. The knitted fabric obtained by the conventional technology shown in Figure 2 was manufactured by the following [Conventional method for manufacturing circular knitted fabric], and although the snag resistance was improved by using specific yarns and surface smoothing, the design was poor, and when water-repellent or hydrophilic finishing was performed, the agent was easily removed by washing, resulting in poor processing durability.

[従来技術の丸編地の製造方法(比較例3)]
福原精機22ゲージ33インチの丸編機を用いて、図4に示すように、強度4.1cN/dtex、伸度26.4%のポリエステル加工糸174デシテックス72フィラメントAを、F3、F6に、強度4.1cN/dtex、伸度30.4%のポリエステル加工糸85デシテックス36フィラメントBを、F1、F4に、そして強度2.5cN/dtex、伸度18.7%のポリエステル加工糸110デシテックス48フィラメント(2つ目の)Bを、F2、F5に供給し、編地表面が全面A糸からなる平滑な生機を得た。得られた生機を連続式水系リラックス/精錬機を用いて80℃で精錬した後、ピンテンターにて巾だしして、190℃×1minでプレセットを行った。その後、液流染色機にて、130℃ポリエステル分散染色を行い、ソーピング後、シワを取り除くため適度に生地を伸長させ、170℃×1minのファイナルセットを行い、生地を得た。得られた生地は、糸の混率としてAが52.1%、Cが30.2%、(2つ目の)Cが17.7%、58コース/インチ、38ウェール/インチ、目付は324g/m2、平均高さRcが117.4μm、摩耗回数は35000回、スナッグはタテ4級、ヨコ4級、ぎらつきは×であった。
[Conventional method for manufacturing circular knitted fabric (Comparative Example 3)]
Using a Fukuhara Seiki 22 gauge 33 inch circular knitting machine, 174 decitex 72 filament polyester textured yarn A with a strength of 4.1 cN/dtex and elongation of 26.4% was fed to F3 and F6, 85 decitex 36 filament polyester textured yarn B with a strength of 4.1 cN/dtex and elongation of 30.4% was fed to F1 and F4, and 110 decitex 48 filament polyester textured yarn (second) B with a strength of 2.5 cN/dtex and elongation of 18.7% was fed to F2 and F5 as shown in Figure 4, to obtain a smooth grey fabric whose knitted surface was entirely made of yarn A. The obtained grey fabric was refined at 80°C using a continuous water-based relax/refining machine, and then width-stretched using a pin tenter and preset at 190°C for 1 min. The fabric was then polyester dispersion dyed at 130°C in a jet dyeing machine, soaped, stretched appropriately to remove wrinkles, and final set at 170°C for 1 min to obtain a fabric. The fabric had a yarn blend ratio of 52.1% A, 30.2% C, and 17.7% (second) C, with 58 courses/inch, 38 wales/inch, a basis weight of 324g/m2 , an average height Rc of 117.4μm, abrasion count of 35,000 times, vertical snag grade 4, horizontal snag grade 4, and glare grade x.

撥水加工の際に用いる撥水剤としては、非制限的に、フッ素系、シリコン系、パラフィン系、エチレン尿素系、脂肪酸系などの撥水剤を挙げることができるが、洗濯耐久性の点からフッ素系、シリコン系の撥水剤を使用するのが好ましい。Water repellents used in the water repellent treatment include, but are not limited to, fluorine-based, silicone-based, paraffin-based, ethylene urea-based, and fatty acid-based water repellents, but from the standpoint of washing durability, it is preferable to use fluorine-based and silicone-based water repellents.

また、撥水加工に限らず、吸水加工、抗菌防臭加工、防汚加工等、最終的な要求特性に応じて適宜付与することができる。吸水加工としては、編地にポリエチレングリコールジアクリレートやその誘導体、ポリエチレンテレフタレート-ポリエチレングリコール共重合体などの親水化剤を染色時に同浴加工するか、ファイナルセット工程で編地に付与することが好ましい。また、かかる親水化剤の付着量は、編地の重量に対して0.25~0.5重量%であることができる。これにより、本実施形態の学生服用編地を表地に用いて学生服を作製し、該表地に吸水加工を施すとき、又は、学生服を作製する前に該編地自体に吸水加工を施すとき、JIS L 0217 103法に準じた洗濯30回後のJIS L 1907滴下法による吸水性が5秒以下である学生服を製造することができる。In addition, not only water repellency, but also water absorption, antibacterial, deodorizing, stain resistant, etc. can be appropriately applied depending on the final required characteristics. For water absorption, it is preferable to apply a hydrophilizing agent such as polyethylene glycol diacrylate or its derivatives, polyethylene terephthalate-polyethylene glycol copolymer to the knitted fabric in the same bath during dyeing, or to apply it to the knitted fabric in the final set process. The amount of the hydrophilizing agent attached can be 0.25 to 0.5% by weight based on the weight of the knitted fabric. As a result, when the knitted fabric for school uniforms of this embodiment is used for the outer fabric to produce school uniforms and water absorption is applied to the outer fabric, or when water absorption is applied to the knitted fabric itself before producing the school uniforms, school uniforms can be produced that have a water absorption time of 5 seconds or less according to the JIS L 1907 dripping method after 30 washes according to the JIS L 0217 103 method.

以下、実施例、比較例により本発明を具体的に説明する。
まず、実施例等で用いた各種物性の測定方法等を以下に説明する。
The present invention will be specifically described below with reference to examples and comparative examples.
First, the methods for measuring various physical properties used in the examples will be described below.

(1)耐摩耗性
JIS L 1096織物及び編物の生地試験方法に基づき、マーチンデール摩耗試験機にて押圧荷重9.0±0.2kPa摩擦し、編地表面の糸が破断した時の摩擦回数を記録する。破断した時の摩擦回数が30000回以上を合格とした。
(1) Abrasion resistance Based on JIS L 1096, a fabric test method for woven and knitted fabrics, a pressure load of 9.0±0.2 kPa is applied using a Martindale abrasion tester, and the number of abrasions at which the yarn on the surface of the knitted fabric breaks is recorded. A number of abrasions of 30,000 or more at which the fabric breaks is considered to be acceptable.

(2)撥水性
JIS L 1092スプレー法に基づき撥水性を判定した。比較見本を参考に1級(もっとも悪い)から5級(もっとも良い)の間で等級を決定した。3級以上を合格とした。
(2) Water repellency: Water repellency was evaluated based on the JIS L 1092 spray method. A grade was determined from grade 1 (worst) to grade 5 (best) with reference to a comparison sample.Grades 3 and above were considered to be acceptable.

(3)吸水性
JIS L 1907に基づき水を1滴滴下して試験片の鏡面反射が消えるまでの時間をストップウォッチで測定して記録した。1秒未満であればその旨を記載した。
(3) Water Absorption: According to JIS L 1907, a drop of water was dropped on the test piece, and the time until the mirror reflection of the test piece disappeared was measured with a stopwatch and recorded. If the time was less than one second, this was noted.

(4)スナッグ性
スナッグ性は、JIS L 1058に記載のICI型ピリング試験機を用いたカナノコ法(D-3法)で15時間操作した後の試料外観を観察して評価した。標準写真1級(もっとも悪い)から5級(もっとも良い)の間で等級を決定した。尚、1級と2級の中間程度である場合1-2級と判定した。タテおよびヨコが3級以上を合格とした。
(4) Snagging property The snagging property was evaluated by observing the appearance of the sample after 15 hours of operation using the Kananoko method (D-3 method) with an ICI type pilling tester described in JIS L 1058. A grade was determined from standard photograph grade 1 (worst) to grade 5 (best). In addition, a grade between grades 1 and 2 was judged to be 1-2.Grades 3 or higher in both the vertical and horizontal directions were considered to pass.

(5)ぎらつき(光沢)
ぎらつきの判定は、生地表面を目視により確認し判定した。ぎらつきが強く学生服としてふさわしくない見た目の編地は×、ぎらつきが弱いが消失しているとはいえない見た目の編地は△、ぎらつきが無く学生服にふさわしい見た目の編地は○と判定した。
(5) Glare (gloss)
The glittering was judged by visually inspecting the surface of the fabric. Knitted fabrics with strong glittering and an appearance that was not suitable for school uniforms were rated as ×, knitted fabrics with weak glittering but not completely eliminated were rated as △, and knitted fabrics with no glittering and an appearance that was suitable for school uniforms were rated as ○.

(6)目付
20℃×65%RHで1日調湿した編地から10cm×10cmのサンプルを切り出し、精密天秤で重量をgで測定し100を乗じてg/m2に換算した。
(6) Weight per unit area A 10 cm x 10 cm sample was cut out from the knitted fabric that had been conditioned at 20°C x 65% RH for one day, and its weight was measured in grams using a precision balance and multiplied by 100 to convert it to g/m2 .

(7)原糸の破断強度、破断伸度
JIS L 1013化学繊維フィラメント糸試験方法に基づき、下記の条件で平均5回測定した平均値をもとめた。単糸繊度は、糸の繊度をフィラメント数で除して算出した。
試験片長さ :200mm
引張速度 :200mm/min
(7) Breaking strength and breaking elongation of raw yarn Based on JIS L 1013, chemical fiber filament yarn test method, the average value was obtained by measuring five times on average under the following conditions. The single yarn fineness was calculated by dividing the yarn fineness by the number of filaments.
Test piece length: 200 mm
Tensile speed: 200 mm/min

(8)輪郭曲線要素の平均高さRc
編地表面(製品表となる側)について、以下の測定を行った。
編地表面に大きなたるみ、シワがよらないよう直径12cmの円形状の型枠に編地をはめて固定した。その型枠の中央部分を、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で編地ヨコ方向10mmの長さにおいて線粗さを測定した。測定長さ(10mm)における輪郭曲線要素の平均高さRcを得た。位置を代えた測定長さ(10mm)において10回測定し、得られた平均高さRcの平均値を算出した。
(8) Average height Rc of the profile curve element
The following measurements were made on the knitted fabric surface (the side that will become the product face).
The knitted fabric was fixed in a circular mold with a diameter of 12 cm so as to prevent large sagging and wrinkles on the surface of the knitted fabric. The line roughness of the central part of the mold was measured at a magnification of 12 times over a length of 10 mm in the weft direction of the knitted fabric using a one-shot 3D shape measuring instrument VR-3000 manufactured by Keyence Corporation. The average height Rc of the contour curve element in the measurement length (10 mm) was obtained. Measurements were performed 10 times over the measurement length (10 mm) at different positions, and the average value of the obtained average height Rc was calculated.

(9)洗濯処理
JIS L 0217 103法に基づき編地を30回洗濯する。「洗濯後」とは、編地がかかる洗濯処理を施されていることを意味する。
(9) Washing Treatment The knitted fabric is washed 30 times according to JIS L 0217 103. "After washing" means that the knitted fabric has been subjected to such washing treatment.

参考例1]
福原精機28ゲージ33インチの丸編み機を用いて、図3に示すように、破断強度4.3cN/dtex、破断伸度34.5%、沸水収縮率4.0%のポリエステル加工糸176デシテックス48フィラメントで撚数が1300T/mの撚糸Aを、給糸口F3、F7、F11に、強度3.7cN/dtex、伸度18.9%、沸水収縮率4.0%のポリエステル84デシテックス36フィラメントで撚数が1600T/mの撚糸Bを、F1、F5、F9に、そして強度3.7cN/dtex、伸度18.9%、沸水収縮率4.0%のポリエステル84デシテックス36フィラメント加工糸Bを、F2、F4、F6、F8、F10、F12に供給して、ツイル組織の生機を作製した。得られた生機を連続式水系リラックス/精錬機を用いて80℃で精錬した後、ピンテンターにて巾だしして、190℃×1minでプレセットを行った。その後、液流染色機にて130℃ポリエステル分散染色を行いソーピング後、フッ素系吸水加工剤を添加した水槽に浸漬してマングルで脱水し、シワを取り除くため適度に生地を伸長させ、170℃×1minのファイナルセットを行い、生地を得た。得られた生地は、糸の重量混率がポリエステル176デシテックス48フィラメント撚糸A54.7%、ポリエステル84デシテックス36フィラメント撚糸B24.0%、ポリエステル84デシテックス36フィラメントB21.3%、48コース/インチ、45ウェール/インチ、目付は272g/m2、平均高さRcが234μm、摩擦回数は42500回、スナッグはタテ4級、ヨコ4級、初期撥水は4級、摩耗後の撥水性は3級、洗濯30回後の撥水性は3級、ぎらつきは○であった。結果を以下の表1に示す。
[Reference Example 1]
Using a Fukuhara Seiki 28-gauge 33-inch circular knitting machine, as shown in FIG. 3, a twill texture greige was produced by supplying twisted yarn A, which was a 176 dtex 48 filament polyester textured yarn with a breaking strength of 4.3 cN/dtex, a breaking elongation of 34.5%, and a boiling water shrinkage of 4.0%, and had a twist of 1,300 T/m, to yarn feeders F3, F7, and F11; twisted yarn B, which was a 84 dtex 36 filament polyester textured yarn with a strength of 3.7 cN/dtex, an elongation of 18.9%, and a boiling water shrinkage of 4.0%, and had a twist of 1,600 T/m, to feeders F1, F5, and F9; and twisted yarn B, which was a 3.7 cN/dtex 36 filament polyester textured yarn with a strength of 3.7 cN/dtex, an elongation of 18.9%, and a boiling water shrinkage of 4.0%, to feeders F2, F4, F6, F8, F10, and F12. The obtained grey fabric was scoured at 80°C using a continuous water-based relax/scour machine, then stretched using a pin tenter and pre-set at 190°C for 1 min. Then, polyester dispersion dyeing was performed at 130°C using a liquid jet dyeing machine, and after soaping, the fabric was immersed in a water tank containing a fluorine-based water-absorbing agent and dehydrated using a mangle. The fabric was stretched appropriately to remove wrinkles, and a final set was performed at 170°C for 1 min to obtain the fabric. The resulting fabric had a yarn weight blend of 54.7% polyester 176 dtex 48 filament twisted yarn A, 24.0% polyester 84 dtex 36 filament twisted yarn B, and 21.3% polyester 84 dtex 36 filament B, with 48 courses/inch, 45 wales/inch, basis weight of 272 g/m2 , average height Rc of 234 μm, number of frictions of 42,500, vertical snag grade 4, horizontal snag grade 4, initial water repellency grade 4, water repellency afterabrasion grade 3, water repellency after 30 washesgrade 3, and glare grade O. The results are shown in Table 1 below.

参考例2]
福原精機28ゲージ33インチの丸編み機を用いて、図3に示すように、破断強度4.3cN/dtex、破断伸度34.5%、沸水収縮率4.0%のポリエステル加工糸176デシテックス48フィラメントで撚数が1600T/mの撚糸Aを、給糸口F3、F7、F11に、強度3.7cN/dtex、伸度18.9%、沸水収縮率4.0%のポリエステル84デシテックス36フィラメントで撚数が1600T/mの撚糸Bを、F1、F5、F9に、そして強度3.7cN/dtex、伸度18.9%、沸水収縮率4.0%のポリエステル84デシテックス36フィラメント加工糸Bを、F2、F4、F6、F8、F10、F12に供給して、ツイル組織の生機を作製した。得られた生機を連続式水系リラックス/精錬機を用いて80℃で精錬した後、ピンテンターにて巾だしして、190℃×1minでプレセットを行った。その後、液流染色機にて130℃ポリエステル分散染色を行いソーピング後、ポリエステル系吸水加工剤を添加した水槽に浸漬してマングルで脱水し、シワを取り除くため適度に生地を伸長させ、170℃×1minのファイナルセットを行い、生地を得た。得られた生地は、糸の重量混率がポリエステル176デシテックス48フィラメント撚糸A58.0%、ポリエステル84デシテックス36フィラメント撚糸B24.4%、ポリエステル84デシテックス36フィラメントB17.6%、50コース/インチ、45ウェール/インチ、目付は279g/m2、平均高さRcが274μm、摩擦回数は59000回、スナッグはタテ3-4級、ヨコ3-4級、初期吸水性は1秒、摩耗後の吸水性は5秒、洗濯30回後の吸水性は1秒、ぎらつきは○であった。結果を以下の表1に示す。
[Reference Example 2]
Using a Fukuhara Seiki 28-gauge 33-inch circular knitting machine, as shown in FIG. 3, a twill texture greige was produced by supplying twisted yarn A, which was a 176 dtex 48 filament polyester textured yarn with a breaking strength of 4.3 cN/dtex, a breaking elongation of 34.5%, and a boiling water shrinkage of 4.0%, and had a twist of 1600 T/m, to yarn feeders F3, F7, and F11; twisted yarn B, which was a 84 dtex 36 filament polyester textured yarn with a strength of 3.7 cN/dtex, an elongation of 18.9%, and a boiling water shrinkage of 4.0%, and had a twist of 1600 T/m, to feeders F1, F5, and F9; and twisted yarn B, which was a 3.7 cN/dtex 36 filament polyester textured yarn with a strength of 3.7 cN/dtex, an elongation of 18.9%, and a boiling water shrinkage of 4.0%, to feeders F2, F4, F6, F8, F10, and F12. The obtained grey fabric was scoured at 80°C using a continuous water-based relax/scour machine, then stretched using a pin tenter and pre-set at 190°C for 1 min. Then, polyester dispersion dyeing was performed at 130°C using a liquid flow dyeing machine, and after soaping, the fabric was immersed in a water tank containing a polyester-based water-absorbing agent and dehydrated using a mangle. The fabric was stretched appropriately to remove wrinkles, and a final set was performed at 170°C for 1 min to obtain the fabric. The resulting fabric had a yarn weight blend ratio of 58.0% polyester 176 dtex 48 filament twisted yarn A, 24.4% polyester 84 dtex 36 filament twisted yarn B, and 17.6% polyester 84 dtex 36 filament B, 50 courses/inch, 45 wales/inch, basis weight of 279 g/m2 , average height Rc of 274 μm, number of frictions of 59,000, snags of 3-4 in the vertical direction and 3-4 in the horizontal direction, initial water absorbency of 1 second, water absorbency after abrasion of 5 seconds, water absorbency after 30 washes of 1 second, and glitter of ○. The results are shown in Table 1 below.

[実施例3]
カールマイヤー社製28ゲージ130インチのトリコット機を用いて、図5に示すように、フロント筬に強度4.2cN/dtex、伸度30.6%、沸水収縮率2.6%のポリエステル加工糸56デシテックス24フィラメントBを、ミドル筬とバック筬に強度3.7cN/dtex、伸度18.9%、沸水収縮率4.0%のポリエステル加工糸84デシテックス36フィラメントAを用いて逆ハーフ組織の生機を作製した。得られた生機を実施例2と同様の方法で加工し生地を得た。得られた生地は糸の重量混率が、ポリエステル加工糸56デシテックス24フィラメントB27.1%、ポリエステル加工糸84デシテックス36フィラメントA72.8%(ミドル筬10.7%、バック筬62.2%)、54コース/インチ、36ウェール/インチ、目付は183g/m2、平均高さRcが135μm、摩擦回数は40000回、スナッグはタテ4級、ヨコ3級、初期吸水性は1秒、摩耗後の吸水性は2秒、洗濯30回後の吸水性は1秒、ぎらつきは△であった。結果を以下の表1に示す。
[Example 3]
Using a Karl Mayer 28-gauge 130-inch tricot machine, a reverse half-weave greige was made using a 56 dtex 24 filament polyester textured yarn B with a strength of 4.2 cN/dtex, elongation of 30.6%, and boiling water shrinkage of 2.6% for the front reed, and a 84 dtex 36 filament polyester textured yarn A with a strength of 3.7 cN/dtex, elongation of 18.9%, and boiling water shrinkage of 4.0% for the middle and back reeds, as shown in Figure 5. The resulting greige was processed in the same manner as in Example 2 to obtain a fabric. The resulting fabric had a yarn weight blend ratio of 27.1% polyester textured yarn 56 dtex 24 filament B, 72.8% polyester textured yarn 84 dtex 36 filament A (middle reed 10.7%, back reed 62.2%), 54 courses/inch, 36 wales/inch, basis weight 183 g/m2 , average height Rc 135 μm, number of frictions 40,000, snag grade 4 vertically andgrade 3 horizontally, initial water absorbency 1 second, water absorbency after abrasion 2 seconds, water absorbency after 30 washes 1 second, and glitter △. The results are shown in Table 1 below.

[比較例1]
福原精機28ゲージ33インチの丸編み機を用いて、図3に示すように、ポリエステル短繊維とウール短繊維を混紡した番手1/80の糸Cを、給糸口F1、F2、F3、F5、F6、F7、F9、F10、F11に、強度3.1cN/dtex 、伸度29.3%、沸水収縮率4.1%のCD-PET加工糸84デシテックス48フィラメントで撚数1200T/mの撚糸Aを、F4、F8、F12に、そして強度4.2cN/dtex、伸度32.5%、沸水収縮率40.8%の共重合ポリエステル収縮糸33デシテックス12フィラメントDを、F12へ供給して、ツイル組織の生機を得た。ウールとポリエステルを両染めした以外は実施例1と同様の方法で加工し、生地を得た。得られた生地は糸の混率がウール/ポリエステル混紡1/80 Dが83.9%、CD-PET加工糸84デシテックス48フィラメント撚糸Aが12.0%、ポリエステル収縮糸33デシテックス12フィラメントBが4.1%、48コース/インチ、58ウェール/インチ、目付は285g/m2、平均高さRcが76.7μm、摩耗回数は19250回、スナッグはタテ3級、ヨコ3級、初期撥水4級、摩耗後の撥水性は2-3級、洗濯30回後の撥水性は2級、ぎらつきは○であった。結果を以下の表1に示す。
[Comparative Example 1]
Using a Fukuhara Seiki 28-gauge 33-inch circular knitting machine, yarn C with a count of 1/80, which was a blend of polyester staple fiber and wool staple fiber, was fed to yarn feeders F1, F2, F3, F5, F6, F7, F9, F10, and F11, twisted yarn A with a twist of 1200 T/m and CD-PET processed yarn of 84 decitex and 48 filaments with a strength of 3.1 cN/dtex, elongation of 29.3%, and boiling water shrinkage of 4.1%, was fed to F4, F8, and F12, and copolymer polyester shrink yarn D with a strength of 4.2 cN/dtex, elongation of 32.5%, and boiling water shrinkage of 40.8% was fed to F12 to obtain a twill texture greige. The fabric was processed in the same manner as in Example 1, except that both the wool and polyester were dyed, to obtain a fabric. The resulting fabric had a yarn blend ratio of wool/polyester blend 1/80, D 83.9%, CD-PET textured yarn 84 dtex 48 filament twisted yarn A 12.0%, polyester shrink yarn 33 dtex 12 filament B 4.1%, 48 courses/inch, 58 wales/inch, basis weight 285 g/m2 , average height Rc 76.7 μm, abrasion count 19,250 times,vertical snag grade 3,horizontal snag grade 3, initial water repellency grade 4, water repellency after abrasion grade 2-3, water repellency after 30 washes grade 2, and glare grade O. The results are shown in Table 1 below.

[比較例2]
福原精機32ゲージ33インチの編み機を用いて、図3に示すように、強度4.2cN/dtex、伸度30.6%、沸水収縮率2.6%のポリエステル加工糸56デシテックス24フィラメントAを、給糸口F3、F7、F11に、そして綿とキュプラを混紡した番手60/1の糸Cを、F1、F2、F4、F5、F6、F8、F9、F10、F12に供給して、ツイル組織の生機を作製した。得られた生機を実施例1と同様の方法で加工し、生地を得た。得られた生地は、糸の混率がポリエステル加工糸56デシテックス24フィラメントAが25.4%、綿・キュプラ混紡糸60/1 Dが78.6%、48コース/インチ、54ウェール/インチ、目付は192g/m2、平均高さRcは82.9μm、摩耗回数は18500回、スナッグはタテ2-3級、ヨコ2-3級、初期の撥水性は4級、摩耗後の撥水性は2-3級、洗濯30回後の撥水性は2級、ぎらつきは△であった。結果を以下の表1に示す。
[Comparative Example 2]
Using a Fukuhara Seiki 32 gauge 33 inch knitting machine, 56 decitex 24 filament polyester textured yarn A with a strength of 4.2 cN/dtex, elongation of 30.6%, and boiling water shrinkage of 2.6% was fed to yarn feeders F3, F7, and F11, and cotton and cupra blend yarn C with a count of 60/1 was fed to yarn feeders F1, F2, F4, F5, F6, F8, F9, F10, and F12, as shown in Figure 3, to produce a twill textured grey fabric. The resulting grey fabric was processed in the same manner as in Example 1 to obtain a fabric. The resulting fabric had a yarn blend ratio of 25.4% polyester processed yarn 56 decitex 24 filament A and 78.6% cotton/cupra blended yarn 60/1 D, 48 courses/inch, 54 wales/inch, basis weight 192 g/m2 , average height Rc 82.9 μm, abrasion count 18,500 times, vertical snag grade 2-3, horizontal snag grade 2-3, initial water repellency grade 4, water repellency after abrasion grade 2-3, water repellency after 30 washes grade 2, and glare grade △. The results are shown in Table 1 below.

[比較例3]
比較例3は、前記した従来技術の丸編地に参考例2と同様の方法で吸水加工を施したものである。
[Comparative Example 3]
In Comparative Example 3, the circular knit fabric of the prior art was subjected to water absorption treatment in the same manner as inReference Example 2.

本発明に係る学生服用編地を表地に用いれば、編物の欠点であるスナッグや耐摩耗性を向上させながら、ハリコシがあり、さらに染色加工時に付帯加工された撥水性または吸水性の耐久性が改善された学生服を得ることができる。By using the knitted fabric for school uniforms according to the present invention as the outer material, it is possible to obtain school uniforms that have improved snag and abrasion resistance, which are drawbacks of knitted fabrics, while also having firmness and improved durability of the water repellency or water absorbency that is added during the dyeing process.

Claims (10)

Translated fromJapanese
総繊度75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントAが25重量%以上90重量%未満の混率で、かつ、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBが10重量%超75重量%以下の混率で編成された、ループ密度35~120コース/2.54cm、35~70ウェール/2.54cmの編地であって、該編地は経編地であり、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRc(μm)が120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であり、かつ、該表面(おもてめん)に撥水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1092スプレー法による撥水性が3級以上であることを特徴とする学生服用編地。 A knitted fabric having a loop density of 35 to 120 courses/2.54 cm and 35 to 70 wales/2.54 cm, which is knitted with a synthetic fiber multifilament A having a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex or more and not more than 5.0 dtex at a mixing ratio of 25% by weight to less than 90% by weight, and a synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex or more and not more than 5.0 dtex at a mixing ratio of more than 10% by weightto not more than 75% by weight, the knitted fabric being a warp knitted fabric, the synthetic fiber multifilament A being present on the outermost surface (front) of the knitted fabric, and when the line roughness of the surface (front) of the knitted fabric is measured in the transverse direction over a length of 10 mm using a one-shot 3D shape measuring machine VR-3000 manufactured by Keyence Corporation at a magnification of 12 times, the average height Rc of the contour curve element isA knitted fabric for school uniforms, characterized in that when the surface (front) of the knitted fabric is rubbed with a pressure load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of frictions at which a yarn present on the surface (front) breaks is 30,000 or more, and the surface (front) is treated with a water-repellent finish, and the water-repellent property is grade 3 or higher after 30 washes according to the JIS L 1092 spray method in accordance with the JIS L 0217 103 method. 総繊度75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントAが25重量%以上90重量%未満の混率で、かつ、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBが10重量%超75重量%以下の混率で編成された、ループ密度35~120コース/2.54cm、35~70ウェール/2.54cmの編地であって、該編地は経編地であり、該編地の最表面(おもてめん)には、該合成繊維マルチフィラメントAが存在し、キーエンス社製ワンショット3D形状測定機VR-3000を用いて倍率12倍で該編地の表面(おもてめん)の線粗さをヨコ方向に長さ10mm測定するとき、輪郭曲線要素の平均高さRc(μm)が120以上300以下であり、かつ、JIS L 1096 に規定するマーチンデール摩耗試験機を用いて押圧荷重9.0±0.2kPaで該編地の表面(おもてめん)を摩擦するとき、該表面(おもてめん)に存在する糸が破断するときの摩擦回数が30000回以上であり、かつ、該表面(おもてめん)に吸水加工が施され、JIS L 0217 103法に準じた洗濯30回後のJIS L 1907滴下法による吸水性が5秒以下であることを特徴とする学生服用編地。 A knitted fabric having a loop density of 35 to 120 courses/2.54 cm and 35 to 70 wales/2.54 cm, which is knitted with a synthetic fiber multifilament A having a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex or more and not more than 5.0 dtex at a mixing ratio of 25% by weight to less than 90% by weight, and a synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex or more and not more than 5.0 dtex at a mixing ratio of more than 10% by weightto not more than 75% by weight, the knitted fabric being a warp knitted fabric, the synthetic fiber multifilament A being present on the outermost surface (front) of the knitted fabric, and when the line roughness of the surface (front) of the knitted fabric is measured in the transverse direction over a length of 10 mm using a one-shot 3D shape measuring machine VR-3000 manufactured by Keyence Corporation at a magnification of 12 times, the average height Rc of the contour curve element isA knitted fabric for school uniforms, characterized in that when the surface (front) of the knitted fabric is rubbed with a pressure load of 9.0±0.2 kPa using a Martindale abrasion tester specified in JIS L 1096, the number of frictions at which a yarn present on the surface (front) breaks is 30,000 or more, and the surface (front) is treated to have a water absorption property, and the water absorption property is 5 seconds or less after 30 washes according to the JIS L 1907 dropping method in accordance with the JIS L 0217 103 method. 総繊度が50dtex以下の合成繊維マルチフィラメントDの混率が2重量%未満である、請求項1又は2に記載の学生服用編地。The knitted fabric for school uniforms according to claim 1 or 2, in which the blending ratio of synthetic multifilament D having a total fineness of 50 dtex or less is less than 2% by weight. 前記合成繊維マルチフィラメントAと前記合成繊維マルチフィラメントBはいずれも、仮撚加工されたポリエステル繊維である、請求項1~3のいずれか1項に記載の学生服用編地。The knitted fabric for school uniforms according to any one of claims 1 to 3, wherein both the synthetic multifilament fiber A and the synthetic multifilament fiber B are polyester fibers that have been false-twisted. 前記合成繊維マルチフィラメントAの破断強度が3.5cN/dtex以上であり、かつ、破断伸度が20%以上50%以下である、請求項1~4のいずれか1項に記載の学生服用編地。The knitted fabric for school uniforms according to any one of claims 1 to 4, wherein the synthetic multifilament fiber A has a breaking strength of 3.5 cN/dtex or more and a breaking elongation of 20% or more and 50% or less.記合成繊維マルチフィラメントAと前記合成繊維マルチフィラメントBはいずれも300~1200T/mの撚糸である、請求項1~5のいずれか1項に記載の学生服用編地。The knitted fabric for student uniform according to any one of claims 1 to 5, whereinthe synthetic fiber multifilament A and the synthetic fiber multifilament B are both twisted yarns of 300 to 1200 T / m. ウール、ナイロン、アクリル、綿、キュプラ、及びレーヨンからなる群から選ばれる繊維Cを30重量%以下の混率でさらに含む、請求項1~のいずれか1項に記載の学生服用編地。 The knitted fabric for school uniforms according to any one of claims 1 to6 , further comprising a fiber C selected from the group consisting of wool, nylon, acrylic, cotton, cupra, and rayon in a blending ratio of 30% by weight or less. 前記編地の表面(おもてめん)の、JIS L 1058 D-3法に準拠した15時間試験後のスナッグ性が3級以上である、請求項1~のいずれか1項に記載の学生服用編地。 The knitted fabric for school uniform according to any one of claims 1 to7 , wherein the surface of the knitted fabric has a snag resistance of grade 3 or higher after a 15-hour test in accordance with JIS L 1058 D-3 method. 以下の工程:
熱セット後に総繊度が75dtex超220dtex以下、単糸繊度1.5dtex以上5.0dtex以下となる合成繊維マルチフィラメントAと、合成繊維マルチフィラメントAの総繊度の1/3~2/3の総繊度、単糸繊度1.5dtex以上5.0dtex以下の合成繊維マルチフィラメントBとを用いて編地を編成する工程;及び
得られた編地を熱セットする工程;
を含む、請求項1~のいずれか1項に記載の学生服用編地の製造方法。
The following steps:
a step of knitting a fabric using synthetic fiber multifilament A having a total fineness of more than 75 dtex and not more than 220 dtex and a single yarn fineness of 1.5 dtex to 5.0 dtex after heat setting, and synthetic fiber multifilament B having a total fineness of 1/3 to 2/3 of the total fineness of the synthetic fiber multifilament A and a single yarn fineness of 1.5 dtex to 5.0 dtex; and a step of heat setting the obtained knitted fabric;
A method for producing the knitted fabric for school uniform according to any one of claims 1 to8 , comprising:
請求項1~のいずれか1項に記載の学生服用編地の表面(おもてめん)を表地に用いた学生服。 A school uniform using the knitted fabric for school uniform according to any one of claims 1 to8 as the outer surface.
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