技术领域technical field
本发明涉及非织造布的技术领域，特别涉及非织造布的生产工艺的技术领域。The invention relates to the technical field of nonwoven fabrics, in particular to the technical field of the production process of nonwoven fabrics.
背景技术Background technique
非织造布是一种不需要纺纱织布形成的织物，只用将纺织短纤维或者长丝进行定向或随机排列，形成纤网结构，然后采用机械、热粘或化学等方法加固而成。非织造布是直接利用高聚物切片、短纤维或长丝通过各种纤网成形方法和固结技术形成的具有柔软、透气和平面结构的新型纤维制品，其生产工艺流程短、生产速度快，产量高、成本低、用途广、原料来源多。Non-woven fabric is a kind of fabric that does not need spinning and weaving. It only uses short textile fibers or filaments to be oriented or randomly arranged to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. Nonwoven fabric is a new type of fiber product with soft, breathable and planar structure formed directly by polymer chips, short fibers or filaments through various web forming methods and consolidation technologies. Its production process is short and the production speed is fast. , high output, low cost, wide application, and many sources of raw materials.
纺粘法和水刺法非织造布生产工艺发展迅速，是非织造布制造中常用的两种工艺方法，纺粘法非织造布生产技术又称聚合物纺丝成网法，是利用化纤纺丝原理，在聚合物纺丝过程中使连续长丝纤维铺置成网，纤网经热轧或针刺加固缠结成非织造布。The production process of spunbond and spunlace nonwovens has developed rapidly. They are two commonly used methods in the manufacture of nonwovens. The production technology of spunbond nonwovens, also known as polymer spinning, is the use The principle is that continuous filament fibers are laid into a web during the polymer spinning process, and the web is hot-rolled or needle-punched to reinforce and entangle into a nonwoven fabric.
水刺法非织造布又称射流喷网法非织造布，短纤经开清梳理后制成纤网，然后利用高压水产生无数个极细的水针射向纤网，使纤维在受到不同方向射流的作用下而相互缠结，从而使纤维网得到加固，缠结成非织造布。Spunlace nonwovens are also called jet spunlace nonwovens. The short fibers are opened, cleaned and carded to form a fiber web, and then high-pressure water is used to produce countless extremely fine water needles to shoot at the fiber web, so that the fibers are subjected to different conditions. Under the action of directional jets, they are entangled with each other, so that the fiber web is strengthened and entangled into a nonwoven fabric.
上述两种方法虽然都能生产出非织造布，但都存在一定的缺陷，纺粘法生产出的非织造布手感较硬，吸水性较差；而水刺法生产出的非织造布强力差、成本高，随着市场的不断发展，人们对非织造布的需求和质量要求越来越高，上述两种方法生产出的非织造布已不能满足人们的需要。Although the above two methods can produce nonwoven fabrics, there are certain defects. The nonwoven fabric produced by the spunbond method has a hard hand and poor water absorption; while the nonwoven fabric produced by the spunlace method has poor strength. , high cost, with the continuous development of the market, people's demand and quality requirements for non-woven fabrics are getting higher and higher, and the non-woven fabrics produced by the above two methods can no longer meet people's needs.
发明内容Contents of the invention
本发明的目的就是解决现有技术中的问题，提出一种纺丝成网浆粕气流成网水刺固结非织造布的生产工艺，能够生产出手感好、强力好、吸水性好、成本低的非织造布。The purpose of the present invention is to solve the problems in the prior art, and propose a production process of spunlaid pulp airlaid spunlace consolidated nonwoven fabric, which can produce a nonwoven fabric with good hand feeling, good strength, good water absorption and low cost. Low nonwovens.
为实现上述目的，本发明提出了一种纺丝成网浆粕气流成网水刺固结非织造布的生产工艺，依次包括如下步骤：In order to achieve the above object, the present invention proposes a production process of spunlaid pulp airlaid spunlace consolidated nonwoven fabric, which comprises the following steps in turn:
a) 进料：将丙纶倒进第一进料料斗和第二进料料斗中，将纸浆粕投入到进料机内；a) Feeding: Pour the polypropylene fiber into the first feeding hopper and the second feeding hopper, and put the pulp into the feeding machine;
b) 熔融：首先将第一进料料斗中的丙纶送入第一挤压机内进行挤压处理，将第二进料料斗中的丙纶送入第二挤压机内进行挤压处理，然后将经过挤压处理的第一挤压机内的丙纶送入第一螺杆挤出机中进行熔融操作，将经过挤压的第二挤压机内的丙纶送入第二螺杆挤出机中进行熔融操作，所述第一螺杆挤出机和第二螺杆挤出机包括五个区，所述五个区的温度分别为210～215℃、240～245℃、231～233℃、233～235℃、229～231℃；b) Melting: First, the polypropylene fiber in the first feeding hopper is sent to the first extruder for extrusion processing, and the polypropylene fiber in the second feeding hopper is sent to the second extruder for extrusion processing, and then Send the extruded polypropylene fiber in the first extruder to the first screw extruder for melting operation, and send the extruded polypropylene fiber in the second extruder to the second screw extruder for melting operation. Melting operation, the first screw extruder and the second screw extruder include five zones, the temperatures of the five zones are respectively 210-215°C, 240-245°C, 231-233°C, 233-235°C °C, 229～231 °C;
c) 纺丝：经计量泵控制，将第一螺杆挤出机中的丙纶送入第一纺丝箱体，将第二螺杆挤出机中的丙纶送入第二纺丝箱体，分别进行纺丝操作，分别得到第一丝状丙纶和第二丝状丙纶，喷丝板的孔径为0.2～0.3mm；c) Spinning: Controlled by the metering pump, the polypropylene fiber in the first screw extruder is sent to the first spinning box, and the polypropylene fiber in the second screw extruder is sent to the second spinning box, respectively. Spinning operation to obtain the first filamentary polypropylene fiber and the second filamentary polypropylene fiber, the aperture of the spinneret is 0.2-0.3mm;
d) 冷却牵伸：分别对第一丝状丙纶和第二丝状丙纶进行气流牵引，分别形成第一纤网胚体和第二纤网胚体；d) Cooling and drawing: Airflow drawing is performed on the first filamentary polypropylene fiber and the second filamentary polypropylene fiber respectively, to form the first fiber web embryo body and the second fiber web embryo body;
e) 铺网：通过网下吸风，分别使第一纤网胚体和第二纤网胚体吸附在输网帘上，得到第一纤网和第二纤网；e) Laying: through suction under the net, the first fiber web embryo body and the second fiber web embryo body are respectively adsorbed on the conveying curtain to obtain the first fiber web and the second fiber web;
f) 一次预轧：通过对第一轧辊加压，压实蓬松的第一纤网，对第二轧辊加压，压实蓬松的第二纤网，所述第一轧辊和第二轧辊施加的压力为1000～1100kPa；f) One-time pre-rolling: by applying pressure to the first roll, compacting the fluffy first fiber web, pressurizing the second roll, compacting the fluffy second fiber web, the first roll and the second roll applied The pressure is 1000 ~ 1100kPa;
g) 纸浆粕成网：进料机内的纸浆粕经过气流成网机进行成网，成网后的浆粕纤维网导入到第一纤网与第二纤网之间；g) Pulp pulp web forming: the pulp pulp in the feeder is formed into a web through an air-laid machine, and the web-formed pulp fiber web is introduced between the first web and the second web;
h) 二次预轧：将浆粕纤维网平铺在第一纤网与第二纤网之间，然后将第一纤网、浆粕纤维网和第二纤网导入到两根第三轧辊之间，进行二次预轧处理，得到纺粘-浆粕纸-纺粘三层复合纤网胚网，所述第三轧辊所加的压力为1200～1300kPa；h) Secondary pre-rolling: Lay the pulp fiber web between the first fiber web and the second fiber web, and then guide the first fiber web, pulp fiber web and second fiber web to two third rolls In between, a second pre-rolling treatment is carried out to obtain a spunbond-pulp paper-spunbond three-layer composite fiber web, and the pressure applied by the third roll is 1200-1300kPa;
i) 水刺：对纺粘-浆粕-纺粘三层复合纤网胚网进行水刺缠结处理；i) Spunlace: spunbond-pulp-spunbond three-layer composite fiber net embryo net is subjected to hydroentangling treatment;
j) 烘干：将经过水刺缠结处理的纺粘长丝、浆粕纤维复合纤网胚网输入到烘箱中进行烘干处理，所述烘箱的温度为140～180℃，烘干时间为10～12秒；j) Drying: Input the spunbonded filaments and pulp fiber composite fiber webs that have undergone hydroentangling treatment into an oven for drying treatment. The temperature of the oven is 140-180°C, and the drying time is 10-12 seconds;
k) 热轧：对烘干后的纺粘长丝、浆粕纤维复合纤网胚网进行热轧处理，热轧处理温度为170～180℃；k) Hot-rolling: hot-rolling the dried spunbond filaments and pulp fiber composite fiber web, the temperature of the hot-rolling treatment is 170-180°C;
l) 卷取包装：对完成烘干处理的复合非织造布坯布以120米/卷进行卷取，并以每包2卷进行包装，形成纺丝成网浆粕气流成网水刺固结非织造布成品l) Coil packaging: Coil the dried composite nonwoven gray fabric at a rate of 120 meters per roll, and pack 2 rolls per package to form a spunlaid pulp, airlaid, spunlaced and consolidated nonwoven fabric. finished woven fabric
作为优选，所述熔融步骤中，所述第一螺杆挤出机和第二螺杆挤出机的五个区的温度分别为213℃、243℃、232℃、234℃、230℃。Preferably, in the melting step, the temperatures of the five zones of the first screw extruder and the second screw extruder are respectively 213°C, 243°C, 232°C, 234°C, and 230°C.
作为优选，所述纺丝步骤中，所述喷丝板的孔径为0.25mm，所制得的第一丝状丙纶和第二丝状丙纶的性能更好，大小更适合于水刺固结，进而提高产品的品质。As a preference, in the spinning step, the aperture of the spinneret is 0.25 mm, and the prepared first filamentary polypropylene fiber and the second filamentary polypropylene fiber have better performance, and the size is more suitable for hydroentanglement consolidation. Thereby improving the quality of the product.
作为优选，所述预轧处理步骤中，所述一次预轧中，第一轧辊和第二轧辊的压力均为1050kPa，二次预轧中，第三轧辊的压力为1250kPa。Preferably, in the pre-rolling treatment step, in the primary pre-rolling, the pressures of the first roll and the second roll are both 1050 kPa, and in the second pre-rolling, the pressure of the third roll is 1250 kPa.
作为优选，所述热轧步骤中，所述热轧温度为175℃，纺粘层丙纶纤维在高温作用下，丙纶纺粘纤维长丝交点熔融固结，使丙纶纺粘纤维间空隙进一步收缩，将浆粕纤维进一步封锁于空隙中无法逸出。Preferably, in the hot-rolling step, the hot-rolling temperature is 175°C, and the polypropylene fibers in the spunbond layer are melted and solidified at the intersections of the polypropylene spunbond filaments under high temperature, so that the gaps between the polypropylene spunbond fibers are further shrunk, The pulp fiber is further blocked in the gap and cannot escape.
作为优选，所述烘干步骤中，所述烘箱的温度为160℃，烘干时间为11秒。Preferably, in the drying step, the temperature of the oven is 160° C., and the drying time is 11 seconds.
本发明的有益效果：本发明通过以丙纶和浆粕纸为原料，结合纺粘法和水刺法，经过挤压、熔融、纺丝、牵伸、铺网、预轧、水刺、热轧等处理步骤而成，以丙纶和浆粕纸为原料，降低了生产成本，通过水刺，使得纺粘长丝交错缠结，并将浆粕纤维冲散被包裹在交错缠结的纺粘长丝之中。产品不仅具有丙纶纺粘布强度高、耐磨损的特点，而且克服了丙纶纺粘布吸水性差不易染色和柔软度差的特性。Beneficial effects of the present invention: the present invention uses polypropylene fiber and pulp paper as raw materials, combines spunbond method and spunlace method, and undergoes extrusion, melting, spinning, drafting, web laying, pre-rolling, spunlace and hot rolling It is made of polypropylene fiber and pulp paper, which reduces the production cost. Through spunlace, the spunbond filaments are intertwined and entangled, and the pulp fibers are scattered and wrapped in intertwined spunbond filaments. among the silk. The product not only has the characteristics of high strength and wear resistance of polypropylene spunbond, but also overcomes the characteristics of poor water absorption, difficult dyeing and poor softness of polypropylene spunbond.
本发明的特征及优点将通过实施例结合附图进行详细说明。The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.
附图说明Description of drawings
图1是本发明纺丝成网浆粕气流成网水刺固结非织造布水刺热轧前的结构示意图；Fig. 1 is the structural representation of the spunlaid pulp air-laid hydroentanglement of the present invention before hydroentanglement hot-rolling;
图2是本发明纺丝成网浆粕气流成网水刺固结非织造布水刺热轧后的结构示意图；Fig. 2 is a structural schematic diagram of the spunlaid pulp air-laid hydroentangled consolidated nonwoven fabric hydroentangled hot-rolled of the present invention;
图3是本发明纺丝成网浆粕气流成网水刺固结非织造布的生产工艺的流程图。Fig. 3 is a flow chart of the production process of the spunlaid pulp airlaid hydroentangled consolidated nonwoven fabric of the present invention.
图中：1-第一纤网、2-第二纤网、3-浆粕纤维层、11-第一进料料斗、12-第一挤压机、13-第一螺杆挤出机、14-第一纺丝箱体、15-第一侧吹风机、16-第一气流牵伸机、17-第一轧辊、18-第一网下吸风机、21-第二进料料斗、22-第二挤压机、23-第二螺杆挤出机、24-第二纺丝箱体、25-第二侧吹风机、26-第二气流牵伸机、27-第二轧辊、28-第二网下吸风机、41-进料机、42-气流成网机、5-第三轧辊、6-水刺机、7-烘箱、8-热轧机。In the figure: 1-the first fiber web, 2-the second fiber web, 3-pulp fiber layer, 11-the first feeding hopper, 12-the first extruder, 13-the first screw extruder, 14 -The first spinning box, 15-the first side blower, 16-the first air drafting machine, 17-the first roller, 18-the first suction fan under the wire, 21-the second feeding hopper, 22-the first Second extruder, 23-second screw extruder, 24-second spinning box, 25-second side blower, 26-second air drafting machine, 27-second roll, 28-second net Down suction fan, 41-feeder, 42-air-laid machine, 5-third roll, 6-spunlace machine, 7-oven, 8-hot rolling mill.
具体实施方式Detailed ways
参阅图1、2，本发明涉及的纺丝成网浆粕气流成网水刺固结非织造布，包括第一纤网1、第二纤网2和浆粕纤维层3，所述浆粕纤维层3位于第一纤网1和第二纤网2之间，所述第一纤网1的厚度为0.3～0.4mm mm，第二纤网2的厚度为0.1～0.5mm，浆粕纤维层3的厚度为0.5～0.8mm。Referring to Figures 1 and 2, the spunlaid pulp airlaid hydroentangled consolidated nonwoven fabric of the present invention includes a first fiber web 1, a second fiber web 2 and a pulp fiber layer 3, the pulp The fiber layer 3 is located between the first fiber web 1 and the second fiber web 2, the thickness of the first fiber web 1 is 0.3-0.4 mm mm, the thickness of the second fiber web 2 is 0.1-0.5 mm, and the pulp fiber The thickness of layer 3 is 0.5-0.8 mm.
参阅图3，本发明纺丝成网浆粕气流成网水刺固结非织造布的生产工艺，依次包括如下步骤：Referring to Fig. 3, the production process of the spunlaid pulp air-laid hydroentangled consolidated nonwoven fabric of the present invention comprises the following steps successively:
a) 进料：将丙纶倒进第一进料料斗11和第二进料料斗21中，将纸浆粕安装在进料机41内；a) Feed: Pour the polypropylene fiber into the first feed hopper 11 and the second feed hopper 21, and install the pulp in the feeder 41;
b) 熔融：首先将第一进料料斗11中的丙纶送入第一挤压机12内进行挤压处理，将第二进料料斗21中的丙纶送入第二挤压机22内进行挤压处理，然后将经过挤压处理的第一挤压机12内的丙纶送入第一螺杆挤出机13中进行熔融操作，将经过挤压的第二挤压机22内的丙纶送入第二螺杆挤出机23中进行熔融操作，所述第一螺杆挤出机13和第二螺杆挤出机23包括五个区，所述五个区的温度分别为210～215℃、240～245℃、231～233℃、233～235℃、229～231℃；b) Melting: first, the polypropylene in the first feed hopper 11 is sent into the first extruder 12 for extrusion processing, and the polypropylene in the second feed hopper 21 is sent into the second extruder 22 for extrusion pressure treatment, and then the polypropylene fiber in the extruded first extruder 12 is sent into the first screw extruder 13 for melting operation, and the extruded polypropylene fiber in the second extruder 22 is sent into the first screw extruder 22 The melting operation is carried out in the two-screw extruder 23. The first screw extruder 13 and the second screw extruder 23 include five zones, and the temperatures in the five zones are respectively 210-215° C., 240-245° C. ℃, 231～233℃, 233～235℃, 229～231℃;
c) 纺丝：经计量泵控制，将第一螺杆挤出机13中的丙纶送入第一纺丝箱体14，将第二螺杆挤出机23中的丙纶送入第二纺丝箱体24，分别进行纺丝操作，分别得到第一丝状丙纶和第二丝状丙纶，喷丝板的孔径为0.2～0.3mm；c) Spinning: Controlled by the metering pump, the polypropylene in the first screw extruder 13 is sent to the first spinning box 14, and the polypropylene in the second screw extruder 23 is sent to the second spinning box 24. Carry out spinning operations respectively to obtain the first filamentary polypropylene fiber and the second filamentary polypropylene fiber, and the aperture of the spinneret is 0.2-0.3mm;
d) 冷却牵伸：分别对第一丝状丙纶和第二丝状丙纶进行气流牵引，分别形成第一纤网胚体和第二纤网胚体；d) Cooling and drawing: Airflow drawing is performed on the first filamentary polypropylene fiber and the second filamentary polypropylene fiber respectively, to form the first fiber web embryo body and the second fiber web embryo body;
e) 铺网：通过网下吸风，分别使第一纤网胚体和第二纤网胚体吸附在输网帘上，得到第一纤网1和第二纤网2；e) Laying: through suction under the net, the first fiber web embryo and the second fiber web embryo are respectively adsorbed on the conveying curtain to obtain the first fiber web 1 and the second fiber web 2;
f) 一次预轧：通过对第一轧辊17加压，压实蓬松的第一纤网1，对第二轧辊27加压，压实蓬松的第二纤网2，所述第一轧辊17和第二轧辊27施加的压力为1000～1100kPa；f) One-time pre-rolling: by pressurizing the first roll 17, compacting the fluffy first fiber web 1, pressurizing the second roll 27, compacting the fluffy second fiber web 2, the first roll 17 and The pressure applied by the second roller 27 is 1000-1100kPa;
g) 纸浆粕成网：进料机内的纸浆粕经过气流成网机进行成网，成网后的浆粕纤维网3导入到第一纤网1与第二纤网2之间；g) Pulp pulp web forming: the pulp pulp in the feeder is formed into a web through an air-laid machine, and the web-formed pulp fiber web 3 is introduced between the first fiber web 1 and the second fiber web 2;
h) 二次预轧：将浆粕纤维网3平铺在第一纤网1与第二纤网2之间，然后将第一纤网1、浆粕纤维网3和第二纤网2导入到两根第三轧辊5之间，进行二次预轧处理，得到纺粘-浆粕纸-纺粘三层复合纤网胚网，所述第三轧辊5所加的压力为1200～1300kPa；h) Secondary pre-rolling: the pulp fiber web 3 is spread between the first fiber web 1 and the second fiber web 2, and then the first fiber web 1, the pulp fiber web 3 and the second fiber web 2 are introduced into the Between the two third rollers 5, carry out a second pre-rolling process to obtain a spunbond-pulp paper-spunbond three-layer composite fiber web embryo web, and the pressure applied by the third roller 5 is 1200-1300kPa;
i) 水刺：对纺粘-浆粕-纺粘三层复合纤网胚网进行水刺缠结处理；i) Spunlace: spunbond-pulp-spunbond three-layer composite fiber net embryo net is subjected to hydroentangling treatment;
j) 烘干：将经过水刺缠结处理的纺粘长丝、浆粕纤维复合纤网胚网输入到烘箱7中进行烘干处理，所述烘箱7的温度为140～180℃，烘干时间为10～12秒；j) Drying: Input the spunbond filaments and pulp fiber composite fiber webs that have undergone spunlace entanglement into the oven 7 for drying treatment. The temperature of the oven 7 is 140-180°C, The time is 10-12 seconds;
k) 热轧：对烘干后的纺粘长丝、浆粕纤维复合纤网胚网进行热轧处理，热轧处理温度为170～180℃；k) Hot-rolling: hot-rolling the dried spunbond filaments and pulp fiber composite fiber web, the temperature of the hot-rolling treatment is 170-180°C;
l) 卷取包装：对完成烘干处理的复合非织造布坯布以120米/卷进行卷取，并以每包2卷进行包装，形成纺丝成网浆粕气流成网水刺固结非织造布成品。l) Coil packaging: Coil the dried composite nonwoven gray fabric at a rate of 120 meters per roll, and pack 2 rolls per package to form a spunlaid pulp, airlaid, spunlaced and consolidated nonwoven fabric. Finished woven cloth.
所述熔融步骤中，所述第一螺杆挤出机13和第二螺杆挤出机23的五个区的温度分别为213℃、243℃、232℃、234℃、230℃，所述纺丝步骤中，所述喷丝板的孔径为0.25mm，在所述铺网步骤中，在第一纤网胚体下方安装有第一网下吸风机18，在第二纤网胚体下方安装有第二网下吸风机28，所述预轧处理步骤中，所述一次预轧中，第一轧辊17和第二轧辊27的压力均为1050kPa，二次预轧中，第三轧辊5的压力为1250kPa，所述热轧步骤中，所述热轧机8的温度为175℃，所述烘干步骤中，所述烘箱7的温度为160℃，烘干时间为11秒。In the melting step, the temperatures of the five zones of the first screw extruder 13 and the second screw extruder 23 are respectively 213°C, 243°C, 232°C, 234°C, and 230°C. In the step, the aperture of the spinneret is 0.25 mm. In the web laying step, a first under-wire suction fan 18 is installed under the first fiber web embryo, and a suction fan 18 is installed under the second fiber web embryo. The second under-wire suction fan 28, in the pre-rolling process step, in the first pre-rolling, the pressure of the first roll 17 and the second roll 27 is 1050kPa, in the second pre-rolling, the pressure of the third roll 5 In the hot rolling step, the temperature of the hot rolling mill 8 is 175°C, in the drying step, the temperature of the oven 7 is 160°C, and the drying time is 11 seconds.
在第一纺丝箱体14与第一气流牵伸机16之间安装有第一侧吹风机15，在第二纺丝箱体24与第二气流牵伸机26之间安装有第二侧吹风机25，对第一丝状丙纶和第二丝状丙纶进行侧吹风处理，将第一侧吹风机15和第二侧吹风机25安装在第一丝状丙纶与第二丝状丙纶的任意一侧。A first side blower 15 is installed between the first spinning beam 14 and the first air drafting machine 16, and a second side blower is installed between the second spinning beam 24 and the second air drafting machine 26 25. Perform side blowing treatment on the first filamentary polypropylene and the second filamentary polypropylene, and install the first side blower 15 and the second side blower 25 on either side of the first filamentary polypropylene and the second filamentary polypropylene.
参阅图2，所述水刺步骤中，在水刺机6的作用下，水刺使得纺粘纤维长丝交错缠结，并将浆粕纤维冲散在纺粘纤维长丝的空隙中，进而均匀分布在非织造布中，一般的SMS复合非织造布是有明显分层的，但我们的产品经过水刺过程后，浆粕纤维均匀分散，被包裹在交错缠结的纺粘长丝之中，因而效果要比SMS复合法更为优异，因为SMS复合法由于上下两层的阻隔，中间层的效果相对较弱。而将浆粕纤维冲散在上下两层纺粘布中，使得浆粕纤维的性能更为突出，产品不仅具有丙纶纺粘布强度高、耐磨损的特点，而且克服了丙纶纺粘布吸水性差不易染色和柔软度差的特点。Referring to Fig. 2, in the spunlace step, under the action of the spunlace machine 6, the spunlace makes the spunbond fiber filaments intertwined and entangled, and the pulp fibers are scattered in the gaps of the spunbond fiber filaments, and then evenly Distributed in non-woven fabrics, the general SMS composite non-woven fabrics have obvious layers, but after our products undergo the spunlace process, the pulp fibers are evenly dispersed and wrapped in interlaced entangled spunbond filaments , so the effect is better than the SMS composite method, because the SMS composite method is relatively weak in the middle layer due to the barrier between the upper and lower layers. Dispersing the pulp fiber into the upper and lower layers of spunbond fabric makes the performance of the pulp fiber more prominent. The product not only has the characteristics of high strength and wear resistance of polypropylene spunbond fabric, but also overcomes the poor water absorption of polypropylene spunbond fabric. It is not easy to dye and has poor softness.
上述实施例是对本发明的说明，不是对本发明的限定，任何对本发明简单变换后的方案均属于本发明的保护范围。The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.
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| CN201310086862.6ACN103147233B (en) | 2013-03-18 | 2013-03-18 | Spunlaid, pulp airlaid and spunlace-bonded non-woven fabric production process |
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| CN201310086862.6ACN103147233B (en) | 2013-03-18 | 2013-03-18 | Spunlaid, pulp airlaid and spunlace-bonded non-woven fabric production process |
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