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CN-121992662-A - Preparation method of nylon composite lining cloth

CN121992662ACN 121992662 ACN121992662 ACN 121992662ACN-121992662-A

Abstract

The invention discloses a preparation method of nylon composite lining cloth, which belongs to the technical field of textiles, and comprises the steps of (1) weaving nylon yarns into grey cloth, (2) shaping and preshrinking the grey cloth, (3) finishing the grey cloth once by using a first softening agent, (4) dyeing and cleaning the grey cloth after the primary finishing, and (5) shaping and finishing the dyed grey cloth by using a second softening agent to obtain the composite lining cloth, wherein the first softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and N-vinyl imidazole, and the second softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and 4-vinyl benzyl bromide.

Inventors

  • SUN GUOQING
  • LIU YANG
  • SHI YONGQING
  • FU YONGQING
  • DENG WEI

Assignees

  • 保定市天马衬布有限公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (10)

  1. 1. The preparation method of the nylon composite lining cloth is characterized by comprising the following preparation steps: (1) Weaving nylon yarns into grey cloth; (2) Shaping and preshrinking the grey cloth; (3) Performing primary finishing by adopting a first softening agent; (4) Dyeing and cleaning the grey cloth after primary finishing; (5) And shaping and finishing the dyed grey cloth by adopting a second softening agent to obtain the composite lining cloth.
  2. 2. The method for preparing nylon composite lining according to claim 1, wherein the first softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and N-vinyl imidazole.
  3. 3. The preparation method of the nylon composite lining cloth according to claim 2 is characterized in that the preparation method of the first softener comprises the steps of adding side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane, N-vinyl imidazole and isopropanol under the protection of nitrogen, stirring and mixing uniformly, heating to 80-85 ℃, adding a chloroplatinic acid catalyst, continuing constant temperature reaction for 2-3 hours, and depressurizing to remove low-boiling substances after the reaction is completed, so as to obtain the first softener, wherein the mole ratio of a silicon hydrogen bond in the side chain hydrogen-containing silicone oil to the allyl alcohol polyoxyalkyl ether, the vinyl triethoxysilane and the N-vinyl imidazole is 10-12:4:1:4-6, the addition amount of the chloroplatinic acid catalyst is 5-15 ppm, and the addition amount of the isopropanol is 10-20% of the sum of the mass of the side chain hydrogen-containing silicone oil, the allyl alcohol polyoxyalkyl ether, the vinyl triethoxysilane and the N-vinyl imidazole.
  4. 4. The method for preparing the nylon composite lining according to claim 1, wherein the addition amount of the first softening agent is 1.5-2.5% OWF, the temperature of primary finishing is 40-50 ℃, and the primary finishing time is 4-6 min.
  5. 5. The method for preparing nylon composite lining according to claim 1, wherein the dye for dyeing adopts anionic dye, and the anionic dye comprises lime 7, sunset yellow 7, reactive blue 19 and congo red.
  6. 6. The method for preparing nylon composite lining according to claim 5, wherein the addition amount of the dye is 4.5-4.7% OWF, the dyeing temperature is 100-110 ℃, the heat preservation time is 25-35 min, and the rate of heating to the dyeing temperature is 0.7-0.9 ℃ per min.
  7. 7. The method for preparing nylon composite lining according to claim 1, wherein the second softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and 4-vinylbenzyl bromide.
  8. 8. The preparation method of the nylon composite lining cloth according to claim 7 is characterized in that the preparation method of the second softener comprises the steps of adding side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane, 4-vinylbenzyl bromide and isopropanol under the protection of nitrogen, stirring and mixing uniformly, heating to 80-85 ℃, adding a chloroplatinic acid catalyst, continuing constant temperature reaction for 2-3 hours, and removing low-boiling substances under reduced pressure after the reaction is completed, so as to obtain the second softener, wherein the mole ratio of a silicon hydrogen bond in the side chain hydrogen-containing silicone oil to the allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and 4-vinylbenzyl bromide is 10-12:4:1:4-6, the addition amount of the chloroplatinic acid catalyst is 5-15 ppm, and the addition amount of the isopropanol is 10-20% of the sum of the mass of the side chain hydrogen-containing silicone oil, the allyl alcohol polyoxyalkyl ether, the vinyl triethoxysilane and the 4-vinylbenzyl bromide.
  9. 9. The method for preparing the nylon composite lining according to claim 8, wherein the addition amount of the second softening agent is 1.5-2.5% OWF, and the solvent is methanol.
  10. 10. The method for preparing the nylon composite lining cloth according to claim 1, wherein the shaping and finishing steps comprise primary padding in a second softening agent, secondary padding with 10-20 g/L sodium trifluoromethane sulfonate solution, drying and shaping, wherein the primary padding is performed under the protection of nitrogen, the dipping temperature is 70-75 ℃, the dipping time is 12-24 h, the rolling residue is 60-80%, the secondary padding temperature is 80-100 ℃, the dipping time is 10-20 min, and the rolling residue is 60-80%.

Description

Preparation method of nylon composite lining cloth Technical Field The invention relates to the technical field of textiles, in particular to a preparation method of nylon composite lining. Background The nylon composite lining cloth is widely applied to lining materials of high-grade clothing, bags, tents and functional textiles due to excellent wear resistance, light weight and good draping feel. However, in the industrial preparation process, especially in the key processes of weaving, heat setting, dyeing and finishing, the cloth cover is extremely easy to generate crease which is difficult to eliminate due to uneven tension, friction of guide rollers or stacking extrusion. The folds not only seriously affect the appearance flatness of the finished product, but also form 'crease dye spots' in the subsequent dyeing process, namely local chromatic aberration, streaks or color stains are caused by uneven dye permeation or damaged fiber structure at the folds, so that the first-class product rate and market value of the product are greatly reduced. In addition, in order to seek strength, the traditional nylon lining cloth always sacrifices hand feeling, and the finished product generally has touch defects such as hard plate, smoothness and the like, so that the high requirements of modern consumers on close-fitting comfort and softness and skin friendliness are difficult to meet. Meanwhile, the color fastness index of the conventional nylon composite lining is difficult to stably reach the high-end market standard. Therefore, development of a preparation method of nylon composite lining cloth is needed, crease formation can be effectively prevented in the whole preparation process, and synchronous improvement of softness and dyeing color fastness of the fabric is achieved, so that technical bottlenecks of the current industry are broken through, and urgent demands of high-end markets on high-quality and high-functionality lining cloth materials are met. Disclosure of Invention The invention aims to provide a preparation method of nylon composite lining, which aims to solve the technical problems in the background technology. The technical scheme for realizing the aim of the invention is as follows: the invention provides a preparation method of nylon composite lining cloth, which comprises the following preparation steps: (1) Weaving nylon yarns into grey cloth; (2) Shaping and preshrinking the grey cloth; (3) Performing primary finishing by adopting a first softening agent; (4) Dyeing and cleaning the grey cloth after primary finishing; (5) And shaping and finishing the dyed grey cloth by adopting a second softening agent to obtain the composite lining cloth. Further, the first softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and N-vinyl imidazole. Further, the preparation method of the first softener comprises the steps of adding side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane, N-vinylimidazole and isopropanol under the protection of nitrogen, stirring and mixing uniformly, heating to 80-85 ℃, adding a chloroplatinic acid catalyst, continuing constant temperature reaction for 2-3 hours, and removing low-boiling substances under reduced pressure after the reaction is finished to obtain the first softener, wherein the molar ratio of a silicon hydrogen bond in the side chain hydrogen-containing silicone oil to the allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and N-vinylimidazole is 10-12:4:1:4-6, the addition amount of the chloroplatinic acid catalyst is 5-15 ppm, and the addition amount of the isopropanol is 10-20% of the sum of the mass of the side chain hydrogen-containing silicone oil, the allyl alcohol polyoxyalkyl ether, the vinyl triethoxysilane and the N-vinylimidazole. Further, the addition amount of the first softening agent is 1.5-2.5% OWF, the temperature of primary finishing is 40-50 ℃, and the primary finishing time is 4-6 min. Further, the dye for dyeing adopts anionic dyes, wherein the anionic dyes comprise lime 7, sunset yellow 7, reaction blue 19 and congo red. Further, the addition amount of the dye is 4.5-4.7% OWF, the dyeing temperature is 100-110 ℃, the heat preservation time is 25-35 min, and the rate of heating to the dyeing temperature is 0.7-0.9 ℃ per min. Further, the second softening agent is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane and 4-vinylbenzyl bromide. Further, the second softener is prepared by adding side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyl triethoxysilane, 4-vinylbenzyl bromide and isopropanol under the protection of nitrogen, stirring and mixing uniformly, heating to 80-85 ℃, adding chloroplatinic acid catalyst, continuing constant temperature reaction for 2-3 h, and removing low-boiling substa