CN103422275A - Method for crystal change modification and weaving blended fabrics of cotton/linen yarn - Google Patents

Abstract

Translated fromChinese

本发明涉及一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，是将被改性的棉纱线和亚麻纱线分别置于不同密闭容器中，充入改性介质，升压至改性压力，然后瞬间释放压力，去除改性介质，即分别获得晶变改性棉纱线和晶变改性亚麻纱线，然后将晶变改性棉纱线和晶变改性亚麻纱线通过交织形成交织织物。本发明采用以上技术方案的优点如下：1、通过改变晶格结构来达到改性目的的，改性后的纱线克服其原有缺陷，提高了纱线的尺寸稳定性、柔软性和染色性能等。2、采用瞬间释放压力的方法，使得改性后的纱线最大程度的膨胀，大幅提高了纱线的蓬松性和柔软性。3、通过晶变改性棉纱线和晶变改性亚麻纱线织成的交织织物，孔隙增大、结晶度降低、织物柔软，大幅改善了织物的纺、织、染性能。The invention relates to a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric. The modified cotton yarn and flax yarn are respectively placed in different airtight containers, filled with a modified medium, and the pressure is increased. to the modified pressure, then release the pressure instantaneously, and remove the modifying medium to obtain crystal-modified cotton yarn and crystal-modified linen yarn respectively, and then pass the crystal-modified cotton yarn and crystal-modified linen yarn through Interwoven to form an interwoven fabric. The present invention adopts the advantages of the above technical solutions as follows: 1. By changing the lattice structure to achieve the purpose of modification, the modified yarn overcomes its original defects and improves the dimensional stability, softness and dyeing performance of the yarn wait. 2. The method of instantaneous pressure release is adopted to maximize the expansion of the modified yarn, which greatly improves the bulkiness and softness of the yarn. 3. The interwoven fabric woven by crystal-modified cotton yarn and crystal-modified flax yarn has enlarged pores, reduced crystallinity, and soft fabric, which greatly improves the spinning, weaving and dyeing properties of the fabric.

Description

Translated fromChinese

一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric

技术领域technical field

本发明涉及一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，具体地说是一种通过将改性介质增压到改性压力并保压一段时间后瞬间释放压力获得的晶变改性棉纱线和晶变改性亚麻纱线，并将晶变改性棉纱线和晶变改性亚麻纱线交织形成交织织物的方法。The invention relates to a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, specifically a method obtained by pressurizing the modified medium to the modified pressure and holding the pressure for a period of time and releasing the pressure instantaneously Crystal-modified cotton yarn and crystal-modified flax yarn, and a method for interweaving crystal-modified cotton yarn and crystal-modified flax yarn to form an interwoven fabric.

背景技术Background technique

棉纱线/亚麻纱线交织织物是由棉纱线和亚麻纱线按一定的方式交织而成，交织使棉纱线、亚麻纱线形成优势互补，织造出的织物具有良好的吸湿性、透气性、抗菌性等优点，但仍然存在难纺、难织、难染等缺点。Cotton yarn/linen yarn interwoven fabric is formed by interweaving cotton yarn and linen yarn in a certain way. The interweaving makes cotton yarn and linen yarn form complementary advantages. The woven fabric has good hygroscopicity, air permeability, antibacterial However, there are still disadvantages such as difficulty in spinning, weaving and dyeing.

为了改变上述现状，已有很多种改性方法，如物理改性方法、化学改性方法和生物改性方法。物理改性方法主要包括放电技术改性、高压蒸汽闪爆改性、超声空化及微波辐照改性、液氨加工改性等。化学改性方法主要包括酯类改性、醚类改性、接枝改性和交联改性等。In order to change the above status quo, there are many modification methods, such as physical modification methods, chemical modification methods and biological modification methods. Physical modification methods mainly include discharge technology modification, high-pressure steam flash explosion modification, ultrasonic cavitation and microwave irradiation modification, liquid ammonia processing modification, etc. Chemical modification methods mainly include ester modification, ether modification, graft modification and cross-linking modification.

现在国内外已经形成产业化生产的改性方法主要有液氨加工改性和碱丝光改性。液氨改性与碱丝光处理有着相似的效果，如天然卷曲消失、截面变圆、内腔变小等特点，但碱丝光改性的残留碱液不易去除且还会导致纱线融蚀和不均匀性，最主要的差别是液氨改性效果优于碱丝光改性。国内利用液氨作为改性介质，在密闭容器中常规升压—保压—再回收纱线中改性介质的方法对棉纱线有一定效果，但对亚麻纱线效果较差，且该方法只有一次改性，溶胀不彻底、结晶度降低不明显、染色性能没有得到明显改善。这样，织造出的交织织物也存在以上缺点。At present, the modification methods that have formed industrial production at home and abroad mainly include liquid ammonia processing modification and alkali mercerizing modification. Liquid ammonia modification has similar effects to alkali mercerizing treatment, such as the disappearance of natural curls, rounded cross section, and smaller inner cavity. Uniformity, the main difference is that the effect of liquid ammonia modification is better than that of alkali mercerizing modification. Domestically, liquid ammonia is used as the modifying medium, and the conventional method of boosting pressure in a closed container—holding pressure—recycling the modified medium in the yarn has a certain effect on cotton yarn, but the effect on flax yarn is poor, and this method is only Once modified, the swelling is not complete, the degree of crystallinity is not significantly reduced, and the dyeing performance is not significantly improved. Like this, the interwoven fabric that weaves also has above-mentioned shortcoming.

发明内容Contents of the invention

本发明涉及一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，具体地说是一种通过将改性介质增压到改性压力并保压一段时间后瞬间释放压力获得的晶变改性棉纱线和晶变改性亚麻纱线，并将晶变改性棉纱线和晶变改性亚麻纱线交织形成交织织物的方法。The invention relates to a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, specifically a method obtained by pressurizing the modified medium to the modified pressure and holding the pressure for a period of time and releasing the pressure instantaneously Crystal-modified cotton yarn and crystal-modified flax yarn, and a method for interweaving crystal-modified cotton yarn and crystal-modified flax yarn to form an interwoven fabric.

本发明的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，是将被改性的棉纱线和亚麻纱线分别置于不同密闭容器中，充入改性介质，升压至改性压力，然后瞬间释放压力，去除改性介质，即分别获得晶变改性棉纱线和晶变改性亚麻纱线。将晶变改性棉纱线和晶变改性亚麻纱线通过交织，织成交织织物。其原理是：将被改性的棉纱线、亚麻纱线分别置于不同密闭容器中，该密闭容器可以在高压下动密封和负压下动密封，并且零泄漏。通过压力平衡充液和非平衡等速充液，可调节充入密闭容器中改性介质的流量、时间和温度，从而调控改性的压力、两相界面及上述参数的变化速率，进而调控液态介质的渗透率、渗透速率及蒸发速率等工作参数；同时调节改性压力的保压时间；上述工艺可使改性介质的扩散系数提高，改性介质较好的渗透到纱线组织中，重构纱线分子间的氢键网络，改变了纱线的微观结构，加剧大分子链段运动，使纱线分子间发生溶胀作用，孔隙增大，结晶度减小，实现了纱线晶格结构的一次调控。再通过高速溢流，瞬间释放密闭容器中大量液态改性介质，在纱线组织内部与外部瞬间产生巨大压差，形成高速爆膨，使改性介质的扩散系数大幅提高，完全重构了纱线分子间的氢键网络，纱线分子间溶胀作用更彻底，孔隙增大明显，结晶度显著降低，实现了纱线晶格结构的二次调控。然后采用加热和抽真空并行的蒸发方法去除材料中的改性介质，即获得晶变改性棉纱线和晶变改性亚麻纱线。最后将晶变改性棉纱线和晶变改性亚麻纱线通过交织，织成交织织物。晶变改性后棉纱线和亚麻纱线具有柔软性能优良、防皱抗缩、耐久蓬松等优良性能，织成的交织织物大幅提高了纺、织、染性能。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric of the present invention is to place the modified cotton yarn and flax yarn in different airtight containers respectively, fill in the modified medium, and increase the pressure until the modification pressure is reached, and then the pressure is released instantaneously, and the modification medium is removed to obtain crystal-modified cotton yarn and crystal-modified linen yarn respectively. The crystal-modified cotton yarn and the crystal-modified linen yarn are interwoven to form a woven fabric. The principle is: put the modified cotton yarn and linen yarn in different airtight containers respectively, and the airtight containers can be dynamically sealed under high pressure and negative pressure, and have zero leakage. Through pressure balance liquid filling and unbalanced constant speed liquid filling, the flow rate, time and temperature of the modified medium filled in the closed container can be adjusted, so as to control the modified pressure, the two-phase interface and the change rate of the above parameters, and then control the liquid state The working parameters such as the permeability, permeation rate and evaporation rate of the medium; at the same time, adjust the holding time of the modified pressure; the above process can improve the diffusion coefficient of the modified medium, and the modified medium can penetrate into the yarn tissue better, and the weight The hydrogen bond network between the yarn molecules changes the microstructure of the yarn, intensifies the movement of the macromolecular segments, causes swelling between the yarn molecules, increases the pores, reduces the crystallinity, and realizes the yarn lattice structure. a regulation. Then through the high-speed overflow, a large amount of liquid modified medium in the airtight container is released instantly, and a huge pressure difference is generated instantly between the inside and outside of the yarn tissue, forming a high-speed explosion, which greatly increases the diffusion coefficient of the modified medium, and completely reconstructs the yarn. The hydrogen bond network between the yarn molecules, the swelling effect between the yarn molecules is more thorough, the pores increase significantly, and the crystallinity is significantly reduced, realizing the secondary regulation of the yarn lattice structure. Then, the modified medium in the material is removed by heating and evacuating in parallel to obtain the crystal-modified cotton yarn and the crystal-modified flax yarn. Finally, the crystal-modified cotton yarn and the crystal-modified linen yarn are interwoven to form a woven fabric. Cotton yarn and linen yarn after crystal change modification have excellent properties such as softness, anti-wrinkle and shrinkage, durable and fluffy, etc., and the woven interwoven fabric greatly improves the performance of spinning, weaving and dyeing.

作为优选的技术方案：As a preferred technical solution:

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，棉/亚麻交织织物中棉纱线细度为5支～100支，亚麻纱线的细度为5支～120支；所述棉/亚麻交织织物的经纬密度为50～800根/10cm。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric as described above, the fineness of cotton yarn in the cotton/flax interwoven fabric is 5 to 100, and the fineness of flax yarn is 5 to 100. 120; the warp and weft density of the cotton/linen interwoven fabric is 50-800 threads/10cm.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，通过两次重构纱线分子间的氢键网络，实现了纱线晶格结构的二次调控，使纱线分子间溶胀作用更彻底，孔隙明显增大，结晶度明显降低，上染率提高，色牢度提高，然后采用加热和抽真空并行的蒸发方法去除材料中的改性介质。最后将晶变改性棉纱线和晶变改性亚麻纱线通过交织，织成交织织物。采用所述的晶变改性方法，可使获得的晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物微观晶格与未改性的棉纱线和亚麻纱线交织形成的交织织物微观晶格相比，孔隙增大13%～18%，结晶度减小15%～25%；所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物与未改性的棉纱线和亚麻纱线交织形成的交织织物相比，上染率提高25%～40%，色牢度提高17%～25%。As mentioned above, a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric realizes the secondary adjustment of the yarn lattice structure by reconstructing the hydrogen bond network between yarn molecules twice, so that The swelling effect between the yarn molecules is more thorough, the pores are obviously enlarged, the crystallinity is obviously reduced, the dye uptake rate is improved, and the color fastness is improved, and then the modified medium in the material is removed by heating and vacuuming parallel evaporation methods. Finally, the crystal-modified cotton yarn and the crystal-modified linen yarn are interwoven to form a woven fabric. By adopting the crystal change modification method, the microscopic lattice of the interwoven fabric formed by interweaving the obtained crystal change modified cotton yarn and the crystal change modified flax yarn can be interwoven with unmodified cotton yarn and flax yarn. Compared with the microscopic lattice of the interwoven fabric, the porosity increases by 13% to 18%, and the crystallinity decreases by 15% to 25%. Compared with the interwoven fabric formed by the interweaving of modified cotton yarn and flax yarn, the dye uptake rate is increased by 25% to 40%, and the color fastness is increased by 17% to 25%.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，改性介质为液氨；改性介质需具备如下三点特征：1）具有优良的扩散性；2）能与纱线间形成大量的氢键，重构纱线分子间的氢键网络，提高纱线的溶胀性能；3）易于相变调控，便于改性介质蒸发与回收。而液氨具有分子量小、粘性小、表面张力小、易于相变等特殊的物理性质，这些特殊性质使得液氨满足上述三个特征。As mentioned above, a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, the modification medium is liquid ammonia; the modification medium needs to have the following three characteristics: 1) has excellent diffusivity; 2) It can form a large number of hydrogen bonds with the yarn, reconstruct the hydrogen bond network between the yarn molecules, and improve the swelling performance of the yarn; 3) It is easy to control the phase change, and it is convenient for the evaporation and recovery of the modified medium. Liquid ammonia has special physical properties such as small molecular weight, low viscosity, low surface tension, and easy phase transition. These special properties make liquid ammonia meet the above three characteristics.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，改性压力瞬间释放，瞬间产生较大压力差，可以大幅提高改性介质的扩散系数，使被改性纱线产生充分溶胀，是晶变改性的关键工艺过程。对不同的被改性材料，要求的改性压力不同，压力释放的快慢不同，瞬间产生的压力差不同，在不提高改性压力的前提下，要获得尽可能高的释放压力差，应使改性压力降到负压。对棉纱线，改性压力需要大于等于0.5MPa，会达到1.2MPa。因此所述改性压力应为0.5～1.2MPa。对亚麻纱线，改性压力需要大于等于1.2MPa，会达到2MPa。因此所述改性压力应为1.2～2MPa。为获得尽可能高的释放压力差，应使改性压力降到负压，因此改性压力的瞬间释放，要求改性压力瞬间降到改性压力的1%及以下。As mentioned above, a method of crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, the modified pressure is released instantly, and a large pressure difference is generated instantaneously, which can greatly increase the diffusion coefficient of the modified medium, and make the modified medium The sufficient swelling of the yarn is the key process of crystal transformation modification. For different materials to be modified, the required modification pressure is different, the speed of pressure release is different, and the instantaneous pressure difference is different. Under the premise of not increasing the modification pressure, to obtain the highest possible release pressure difference, it should be used Modified pressure dropped to negative pressure. For cotton yarn, the modified pressure needs to be greater than or equal to 0.5MPa, and it will reach 1.2MPa. Therefore, the modification pressure should be 0.5-1.2 MPa. For flax yarn, the modified pressure needs to be greater than or equal to 1.2MPa, and it will reach 2MPa. Therefore, the modification pressure should be 1.2-2 MPa. In order to obtain a release pressure difference as high as possible, the modification pressure should be reduced to negative pressure, so the instantaneous release of the modification pressure requires the modification pressure to drop to 1% of the modification pressure and below.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，为了规范工艺标准，所述压力是指绝对压力。As mentioned above, a method for crystal modification of cotton yarn/linen yarn and weaving interwoven fabric, in order to standardize the process standard, the pressure refers to absolute pressure.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，要获得优良的溶胀效果，要求压力从改性压力降到改性压力的1%的时间小于等于5.0秒即可，在3秒～5秒为宜，因此所述释放压力的瞬间为3秒～5秒，所述棉纱线释放压力的降压速率为0.3MPa/s～1MPa/s，所述亚麻纱线释放压力的降压速率为0.5MPa/s～2MPa/s。As mentioned above, a method for crystal modification of cotton yarn/linen yarn and weaving interwoven fabrics, in order to obtain excellent swelling effect, the time for the pressure to drop from the modified pressure to 1% of the modified pressure is required to be less than or equal to 5.0 seconds That is, 3 seconds to 5 seconds is appropriate, so the moment of releasing the pressure is 3 seconds to 5 seconds, the decompression rate of the cotton yarn releasing pressure is 0.3MPa/s~1MPa/s, the linen yarn The depressurization rate of line release pressure is 0.5MPa/s～2MPa/s.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，为获得改性介质良好的扩散性及最佳改性效果，且改性过程能量消耗最小，需要调控充液过程中氨液的流量、时间和温度，达到调控压力的目的，进而调控介质渗透率、渗透速率、蒸发率、蒸发速率和相变过程。而升压过程是最重要的影响因素之一，对不同的纱线需采用不同的升压过程，大量试验表明：棉纱线纤维素含量占比90%以上，纱线组织结构均匀，适合用等速升压方式，棉纱线的等速升压速率k₁在0.1～0.5MPa/min为宜；而亚麻纱线适合用线性升压方式，升压速率k₂满足关系式

其中t为升压时间，k₀为初始升压速率；对于亚麻纱线，初始升压速率k₀不小于0.5MPa/min，会达到1MPa/min，因此所述初始升压速率k₀在0.5MPa/min～1MPa/min范围内。As mentioned above, a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, in order to obtain good diffusivity of the modified medium and the best modification effect, and the energy consumption of the modification process is minimal, it is necessary to control and fully The flow rate, time and temperature of the ammonia liquid in the liquid process can be controlled to achieve the purpose of regulating the pressure, and then regulate the medium permeability, penetration rate, evaporation rate, evaporation rate and phase change process. The boosting process is one of the most important influencing factors. Different yarns need to adopt different boosting processes. A large number of tests show that: the cellulose content of cotton yarn accounts for more than 90%, and the yarn structure is uniform, suitable for use, etc. The speed boosting method, the constant speed boosting rate k₁ of cotton yarn is suitable for 0.1 ~ 0.5MPa/min; and the linear boosting method is suitable for linen yarn, the boosting rate k₂ satisfies the relation

Where t is the boosting time, k₀ is the initial boosting rate; for flax yarn, the initial boosting rate k₀ is not less than 0.5MPa/min, and will reach 1MPa/min, so the initial boosting rate k₀ is at 0.5 Within the range of MPa/min～1MPa/min.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，在改性过程中，升压后保压一段时间是为了使改性介质能更充分的渗透到纱线组织结构中，更好的完成纱线分子间的氢键网络重构。这一过程对所有纱线的晶变改性都是必要的。对棉纱线，升压后保压1min以上即可，对亚麻纱线，升压后需至少保压5min，因此所述升压后保压时间为1～10min。As mentioned above, a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, in the modification process, the pressure is kept for a period of time after boosting to allow the modified medium to penetrate into the yarn more fully In the organizational structure, the hydrogen bond network reconstruction between yarn molecules is better completed. This process is necessary for crystal modification of all yarns. For cotton yarn, it is sufficient to hold the pressure for more than 1 minute after boosting the pressure, and for flax yarn, it needs to hold the pressure for at least 5 minutes after the boosting, so the pressure holding time after the boosting is 1-10 minutes.

如上所述的一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，在纱线分子间的氢键网络两次重构后，去除改性介质是必不可少的工艺过程，该过程并不影响纱线的晶格结构，但如何高效率、低能耗、无污染、零排放的完成该过程是实现大规模工业化生产的关键因素，这将直接影响晶变改性方法的生命力，关于如何高效率、低能耗、无污染、零排放的完成该过程将再另案撰写系列专利表述。本案中所述去除改性介质为采用加热和抽真空并行的蒸发方法去除材料中的改性介质。As mentioned above, a method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, after the hydrogen bond network between yarn molecules is reconstructed twice, removing the modification medium is an essential process, This process does not affect the lattice structure of the yarn, but how to complete this process with high efficiency, low energy consumption, no pollution, and zero emissions is the key factor to achieve large-scale industrial production, which will directly affect the vitality of the crystal modification method , A series of patent statements will be written separately on how to complete the process with high efficiency, low energy consumption, no pollution, and zero emissions. The removal of the modifying medium in this case refers to the removal of the modifying medium in the material by the parallel evaporation method of heating and vacuuming.

有益效果：Beneficial effect:

本发明采用以上技术方案的优点如下：The present invention adopts the advantage of above technical scheme as follows:

1、本发明通过改变晶格结构来达到改性目的的，改性后的纱线克服其原有缺陷，提高了产品的尺寸稳定性、柔软性和染色性能等。1. The present invention achieves the purpose of modification by changing the lattice structure. The modified yarn overcomes its original defects and improves the dimensional stability, softness and dyeing performance of the product.

2、本发明采用瞬间释放压力的方法，使得改性后的纱线最大程度的膨胀，大幅提高了纱线的蓬松性和柔软性。2. The present invention adopts the method of instantaneous pressure release, so that the modified yarn can expand to the greatest extent, and the bulkiness and softness of the yarn can be greatly improved.

3、本发明通过晶变改性棉纱线和晶变改性亚麻纱线织成的交织织物，孔隙增大、结晶度降低、织物柔软，大幅改善了织物的纺、织、染性能。3. The interwoven fabric woven by the crystal-modified cotton yarn and the crystal-modified flax yarn in the present invention has enlarged pores, reduced crystallinity, soft fabric, and greatly improved spinning, weaving and dyeing properties of the fabric.

具体实施方式Detailed ways

下面结合具体实施方式，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

实施例1Example 1

一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，首先将被改性的5支棉纱线置于密闭容器中，充入液氨，按升压速率k₁为0.1MPa/min的等速升压至改性压力0.5Mpa，保压1min，然后在5秒内以0.3MPa/s的降压速率瞬间释放至0.005Mpa，然后采用加热与抽真空并行的蒸发方法去除改性介质，即获得晶变改性棉纱线。然后将被改性的5支亚麻纱线置于密闭容器中，充入液氨，按线性升压方式升压，升压速率k₂满足关系式

初始升压速率k₀为0.5MPa/min，至改性压力1.2Mpa，保压1min，然后在5秒内以0.5MPa/s的降压速率瞬间释放至0.0012Mpa，然后采用加热与抽真空并行的蒸发方法去除亚麻纱线中的改性介质，即获得晶变改性亚麻纱线。最后将经向晶变改性棉纱线和纬向晶变改性亚麻纱线通过交织，形成5支×5支、150根/10cm×50根/10cm棉/亚麻交织织物。所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物微观晶格与未改性的棉纱线和亚麻纱线交织形成的交织织物微观晶格相比，孔隙增大13%，结晶度减小15%；所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物与未改性的棉纱线和亚麻纱线交织形成的交织织物相比，上染率提高25%，色牢度提高17%。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric. First, 5 modified cotton yarns are placed in an airtight container, filled with liquid ammonia, and pressurized rate k₁ is 0.1MPa/ Increase the pressure at a constant speed of 1 min to the modified pressure of 0.5Mpa, keep the pressure for 1min, and then release it to 0.005Mpa within 5 seconds at a depressurization rate of 0.3MPa/s, and then use the parallel evaporation method of heating and vacuuming to remove the modified Medium, that is, to obtain crystal-modified cotton yarn. Then put the modified 5 flax yarns in an airtight container, fill it with liquid ammonia, and boost the pressure in a linear boosting manner, and the boosting rate k₂ satisfies the relation

The initial pressure increase rate k₀ is 0.5MPa/min, to the modified pressure of 1.2Mpa, hold the pressure for 1min, and then release it to 0.0012Mpa at a depressurization rate of 0.5MPa/s within 5 seconds, and then use heating and vacuuming in parallel The modified evaporation method removes the modified medium in the flax yarn, that is, obtains the crystal-modified flax yarn. Finally, the warp-direction crystal-modified cotton yarn and the weft-direction crystal-modified flax yarn were interwoven to form 5 counts×5 counts, 150 strands/10cm×50 strands/10cm cotton/linen interwoven fabric. Compared with the microscopic lattice of the interwoven fabric formed by the interweaving of the crystal-modified cotton yarn and the crystal-modified flax yarn, the pores of the interwoven fabric micro-lattice increased by 13 %, the crystallinity is reduced by 15%; the interwoven fabric formed by the interweaving of the crystal-change modified cotton yarn and the crystal-change modified flax yarn is compared with the interwoven fabric formed by the interweaving of unmodified cotton yarn and flax yarn. The dyeing rate is increased by 25%, and the color fastness is increased by 17%.

实施例2Example 2

一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，首先将被改性的32支棉纱线置于密闭容器中，充入液氨，按升压速率k₁为0.2MPa/min的等速升压至改性压力1Mpa，保压1min，然后在5秒内以0.3MPa/s的降压速率瞬间释放至0.001Mpa，然后采用加热与抽真空并行的蒸发方法去除改性介质，即获得晶变改性棉纱线。然后将被改性的21支亚麻纱线置于密闭容器中，充入液氨，按按线性升压方式升压，升压速率k₂满足关系式

初始升压速率k₀为0.5MPa/min，至改性压力1.5Mpa，保压5min，然后在5秒内以1MPa/s的降压速率瞬间释放至0.0015Mpa，然后采用加热与抽真空并行的蒸发方法去除亚麻纱线中的改性介质，即获得晶变改性亚麻纱线。最后将经向晶变改性亚麻纱线和纬向晶变改性棉纱线通过交织，形成21支×32支、218根/10cm×196根/10cm棉/亚麻交织织物。所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物微观晶格与未改性的棉纱线和亚麻纱线交织形成的交织织物微观晶格相比，孔隙增大14%，结晶度减小17%；所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物与未改性的棉纱线和亚麻纱线交织形成的交织织物相比，上染率提高29%，色牢度提高17%。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric. First, 32 modified cotton yarns are placed in an airtight container, filled with liquid ammonia, and pressurized rate k₁ is 0.2MPa/ Increase the pressure at a constant speed of 1 min to the modified pressure of 1Mpa, keep the pressure for 1min, and then release it to 0.001Mpa at a depressurization rate of 0.3MPa/s within 5 seconds, and then use the parallel evaporation method of heating and vacuuming to remove the modified medium , that is to obtain crystal-modified cotton yarn. Then put the modified 21 flax yarns in a closed container, fill it with liquid ammonia, and boost the pressure in a linear boosting manner, and the boosting rate k₂ satisfies the relation

The initial pressure increase rate k₀ is 0.5MPa/min, to the modified pressure of 1.5Mpa, the pressure is maintained for 5min, and then released to 0.0015Mpa at a depressurization rate of 1MPa/s within 5 seconds, and then heated and vacuumed in parallel The modified medium in the flax yarn is removed by evaporation, that is, the crystal-modified flax yarn is obtained. Finally, the warp-direction crystal-change modified flax yarn and the weft-direction crystal-change modified cotton yarn were interwoven to form 21 counts×32 counts, 218 strands/10cm×196 strands/10cm cotton/linen interwoven fabric. Compared with the microscopic lattice of the interwoven fabric formed by the interweaving of the crystal-modified cotton yarn and the crystal-modified flax yarn, the pores of the interwoven fabric micro-lattice increased by 14 %, the crystallinity is reduced by 17%; the interwoven fabric formed by the interweaving of the crystal-change modified cotton yarn and the crystal-change modified flax yarn is compared with the interweave fabric formed by the interweaving of unmodified cotton yarn and flax yarn. The dyeing rate increased by 29%, and the color fastness increased by 17%.

实施例3Example 3

一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，首先将被改性的32支棉纱线置于密闭容器中，充入液氨，按升压速率k₁为0.5MPa/min的等速升压至改性压力1Mpa，保压10min，然后在4秒内以0.5MPa/s的降压速率瞬间释放至0.001Mpa，然后采用加热与抽真空并行的蒸发方法去除改性介质，即获得晶变改性棉纱线。然后将被改性的36支亚麻纱线置于密闭容器中，充入液氨，按按线性升压方式升压，升压速率k₂满足关系式

初始升压速率k₀为0.8MPa/min，至改性压力2Mpa，保压10min，然后在3秒内以1MPa/s的降压速率瞬间释放至0.002Mpa，然后采用加热与抽真空并行的蒸发方法去除亚麻纱线中的改性介质，即获得晶变改性亚麻纱线。最后将经向晶变改性棉纱线和纬向晶变改性亚麻纱线通过交织，形成32支×36支、236根/10cm×190根/10cm棉/亚麻交织织物。所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物微观晶格与未改性的棉纱线和亚麻纱线交织形成的交织织物微观晶格相比，孔隙增大17%，结晶度减小23%；所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物与未改性的棉纱线和亚麻纱线交织形成的交织织物相比，上染率提高35%，色牢度提高20%。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric, firstly, 32 modified cotton yarns are placed in an airtight container, filled with liquid ammonia, pressurized rate k₁ is 0.5MPa/ Increase the pressure at a constant speed of 1 min to the modified pressure of 1Mpa, hold the pressure for 10min, and release it to 0.001Mpa within 4 seconds at a depressurization rate of 0.5MPa/s, and then use the parallel evaporation method of heating and vacuuming to remove the modified medium , that is to obtain crystal-modified cotton yarn. Then put the modified 36 flax yarns in a closed container, fill it with liquid ammonia, and boost the pressure in a linear boosting manner, and the boosting rate_k2 satisfies the relation

The initial pressure increase rate k₀ is 0.8MPa/min, to the modified pressure of 2Mpa, hold the pressure for 10min, and then release it to 0.002Mpa at a depressurization rate of 1MPa/s within 3 seconds, and then use heating and vacuuming in parallel to evaporate Methods The modified medium in flax yarn was removed to obtain crystal-modified flax yarn. Finally, the cotton yarns modified in the warp direction and the linen yarns modified in the weft direction were interwoven to form 32 counts×36 counts, 236 strands/10cm×190 strands/10cm cotton/linen interwoven fabric. Compared with the microscopic lattice of the interwoven fabric formed by the interweaving of the crystal-modified cotton yarn and the crystal-modified flax yarn, the pores of the interwoven fabric micro-lattice increased by 17 %, the crystallinity is reduced by 23%; the interwoven fabric formed by interweaving the crystal-modified cotton yarn and the crystal-modified flax yarn is compared with the interwoven fabric formed by the interweaving of unmodified cotton yarn and flax yarn. The dyeing rate is increased by 35%, and the color fastness is increased by 20%.

实施例4Example 4

一种棉纱线/亚麻纱线晶变改性并织造交织织物的方法，首先将被改性的100支棉纱线置于密闭容器中，充入液氨，按升压速率k₁为0.5MPa/min的等速升压至改性压力1.2Mpa，保压10min，然后在3秒内以1MPa/s的降压速率瞬间释放至0.0012Mpa，然后采用加热与抽真空并行的蒸发方法去除改性介质，即获得晶变改性棉纱线。然后将被改性的120支亚麻纱线置于密闭容器中，充入液氨，按线性升压方式升压，升压速率k₂满足关系式

初始升压速率k₀为1MPa/min，至改性压力2Mpa，保压10min，然后在3秒内以2MPa/s的降压速率瞬间释放至0.002Mpa，然后采用加热与抽真空并行的蒸发方法去除亚麻纱线中的改性介质，即获得晶变改性亚麻纱线。最后将经向晶变改性棉纱线和纬向晶变改性亚麻纱线通过交织，形成100支×120支、800根/10cm×700根/10cm棉/亚麻交织织物。所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物微观晶格与未改性的棉纱线和亚麻纱线交织形成的交织织物微观晶格相比，孔隙增大18%，结晶度减小25%；所述晶变改性棉纱线和晶变改性亚麻纱线交织形成的交织织物与未改性的棉纱线和亚麻纱线交织形成的交织织物相比，上染率提高40%，色牢度提高25%。A method for crystal modification of cotton yarn/flax yarn and weaving interwoven fabric. First, the modified 100 cotton yarns are placed in an airtight container, filled with liquid ammonia, and pressurized rate k₁ is 0.5MPa/ Increase the pressure at a constant speed of 1.2Mpa to the modified pressure of 1.2Mpa, keep the pressure for 10min, and then release it to 0.0012Mpa at a depressurization rate of 1MPa/s within 3 seconds, and then use the parallel evaporation method of heating and vacuuming to remove the modified medium , that is to obtain crystal-modified cotton yarn. Then put the modified 120-count flax yarn in a closed container, fill it with liquid ammonia, and boost the pressure in a linear boosting manner, and the boosting rate k₂ satisfies the relation

The initial pressure increase rate k₀ is 1MPa/min, to the modified pressure of 2Mpa, hold the pressure for 10min, and then release it to 0.002Mpa within 3 seconds at a depressurization rate of 2MPa/s, and then use the evaporation method of heating and vacuuming in parallel The modified medium in the flax yarn is removed to obtain the crystal-modified flax yarn. Finally, the cotton yarns modified in the warp direction and the linen yarns modified in the weft direction were interwoven to form 100 counts×120 counts, 800 strands/10cm×700 strands/10cm cotton/linen interwoven fabric. Compared with the interwoven fabric microscopic lattice formed by the interweaving of the crystal-modified cotton yarn and the crystal-modified flax yarn, the pores of the interwoven fabric micro-lattice increased by 18 %, the crystallinity is reduced by 25%; the interwoven fabric formed by the interweaving of the crystal-change modified cotton yarn and the crystal-change modified flax yarn is compared with the interweave fabric formed by the interweaving of unmodified cotton yarn and flax yarn. The dyeing rate is increased by 40%, and the color fastness is increased by 25%.

Claims (10)

1. cotton/linen thread and yarn crystalline substance becomes modification and weaves the method for MIXED FABRIC, it is characterized in that: the cotton and the linen thread and yarn that are modified are placed in respectively to different closed containers, be filled with the modification medium, boost to modifier pressure, then abrupt release pressure, remove the modification medium, obtain respectively brilliant modification cotton and the brilliant modification linen thread and yarn that becomes of becoming.Then crystalline substance is become to modification cotton and the brilliant modification linen thread and yarn that becomes by interweaving, form MIXED FABRIC.

2. the crystalline substance of a kind of cotton according to claim 1/flax MIXED FABRIC becomes method of modifying, it is characterized in that, in described cotton/flax MIXED FABRIC, the cotton fineness is 5～100, and the fineness of linen thread and yarn is 5～120; The thread count of described cotton/flax MIXED FABRIC is 50～800/10cm.

3. a kind of cotton according to claim 1/linen thread and yarn crystalline substance becomes modification and weaves the method for MIXED FABRIC, it is characterized in that, describedly brilliant become the modification cotton and brilliant modification linen thread and yarn the interweave MIXED FABRIC microcosmic lattice of formation of the MIXED FABRIC microcosmic lattice that forms and unmodified cotton and linen thread and yarn that interweaves that becomes is compared, hole increases 13%～18%, and degree of crystallinity reduces 15%～25%; Describedly brilliant become the modification cotton and the brilliant modification linen thread and yarn MIXED FABRIC that forms and unmodified cotton and the linen thread and yarn MIXED FABRIC formed that interweaves that interweaves that becomes is compared, dye-uptake improves 25%～40%, COLOR FASTNESS raising 17%～25%.

4. the brilliant method that becomes modification and weave MIXED FABRIC of a kind of cotton according to claim 1/linen thread and yarn, is characterized in that, described modification medium is liquefied ammonia.

5. a kind of cotton according to claim 1/linen thread and yarn crystalline substance becomes modification and weaves the method for MIXED FABRIC, it is characterized in that, the modifier pressure of described cotton is 0.5～1.2MPa, the modifier pressure P of linen thread and yarn is 1.2～2MPa, described abrupt release pressure refer to pressure moment drop to described modifier pressure 1% and below.

6. the brilliant method that becomes modification and weave MIXED FABRIC of a kind of cotton according to claim 5/linen thread and yarn, is characterized in that, described pressure is absolute pressure.

7. a kind of cotton/linen thread and yarn crystalline substance becomes modification and weaves the method for MIXED FABRIC according to claim 1 or 5, it is characterized in that, described moment refers to 3 seconds～5 seconds, the rate of pressure reduction of described cotton release pressure is 0.3MPa/s～1MPa/s, and the rate of pressure reduction of linen thread and yarn release pressure is 0.5MPa/s～2MPa/s.

8. the brilliant method that becomes modification and weave MIXED FABRIC of a kind of cotton according to claim 1/linen thread and yarn, is characterized in that, boosting of described cotton boosted for constant speed, rate of pressure rise k₁For a certain steady state value of 0.1MPa/min～0.5MPa/min; Boosting of linen thread and yarn boosted for linearity, rate of pressure rise k₂Meet relational expressionWherein t is pressure rising time, k₀For initial rate of pressure rise, k₀For 0.5MPa/min～1MPa/min.

9. the brilliant method that becomes modification and weave MIXED FABRIC of a kind of cotton according to claim 1/linen thread and yarn, is characterized in that, rear maintenance 1min～10min boosts.

10. the brilliant method that becomes modification and weave MIXED FABRIC of a kind of cotton according to claim 1/linen thread and yarn, is characterized in that, described removal modification medium is removed the modification medium in material for adopting heating and vacuumizing parallel method of evaporating.