阅读说明：本技术 一种阻燃、保暖且轻薄的起绒面料及其制备方法 (Flame-retardant, warm-keeping and light-thin napping fabric and preparation method thereof ) 是由 赖俊杰 王怀峰 何国英 祝陈晨 夏磊 丁艳然 于 2020-07-11 设计创作，主要内容包括：本申请涉及功能面料技术领域,具体公开了一种阻燃、保暖且轻薄的起绒面料,其是由21-26%的毛圈纱和74-79%的连接纱组成的双面绒结构,其中毛圈纱采用阻燃混纺纱,连接纱采用阻燃长丝；毛圈纱选自阻燃混纺纱1、阻燃混纺纱2和阻燃混纺纱3中的一种；阻燃长丝选自100D阻燃涤纶长丝纱线和100D阻燃尼龙长丝纱线中的一种；阻燃混纺纱1由以下原料组成：35%21S/1腈氯纶、20%阻燃维纶、30%羊毛、15%芳纶；阻燃混纺纱2由以下重量百分数的原料组成：35%21S/1腈氯纶、20%阻燃维纶、30%阻燃黏胶、15%芳纶；阻燃混纺纱3由以下重量百分数的原料组成：35%21S/1腈氯纶、20%阻燃维纶、30%阻燃天丝、15%芳纶。本申请制备的起绒面料具有永久阻燃性、保暖效果好、面料轻柔和穿着舒适的优点。(The application relates to the technical field of functional fabrics, and particularly discloses a flame-retardant, warm-keeping, light and thin napping fabric which is a double-faced napping structure consisting of 21-26% of loop yarns and 74-79% of connecting yarns, wherein the loop yarns are flame-retardant blended yarns, and the connecting yarns are flame-retardant filaments; the loop yarn is selected from one of flame-retardant blended yarn 1, flame-retardant blended yarn 2 and flame-retardant blended yarn 3; the flame-retardant filament is selected from one of 100D flame-retardant polyester filament yarn and 100D flame-retardant nylon filament yarn; the flame-retardant blended yarn 1 is composed of the following raw materials: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of wool and 15% of aramid; the flame-retardant blended yarn 2 consists of the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant viscose and 15% of aramid; the flame-retardant blended yarn 3 consists of the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant tencel and 15% of aramid fiber. The napping fabric prepared by the method has the advantages of permanent flame retardance, good warm-keeping effect, soft fabric and comfort in wearing.)

1. The flame-retardant, warm-keeping and light and thin napped fabric is characterized in that the napped fabric is a double-sided napped structure consisting of 21-26% of loop yarns and 74-79% of connecting yarns in percentage by weight, wherein the loop yarns are flame-retardant blended yarns, and the connecting yarns are flame-retardant filaments;

the terry yarn is selected from one of flame-retardant blended yarn 1, flame-retardant blended yarn 2 and flame-retardant blended yarn 3;

the flame-retardant filament is selected from one of a 100D flame-retardant polyester filament yarn and a 100D flame-retardant nylon filament yarn;

the flame-retardant blended yarn 1 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of wool and 15% of aramid;

the flame-retardant blended yarn 2 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant viscose and 15% of aramid;

the flame-retardant blended yarn 3 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant tencel and 15% of aramid fiber.

2. The method for preparing the flame-retardant, warm-keeping, light and thin napped fabric according to claim 1, characterized by comprising the following production steps:

s1, weaving the fabric; s2, dyeing; s3, drying; s4, softening and shaping; s5, napping; s6, intermediate sizing; s7, combing; s8, shearing; and S9, finally shaping.

3. The method for preparing the flame-retardant, warm-keeping, light-weight and thin napped fabric according to claim 2, characterized in that in step S2, the specific implementation manner of dyeing is as follows: placing the fabric in a high-temperature high-pressure overflow dyeing machine with a bath ratio of 1 (10-15), dyeing by adopting disperse dye, adding 0.2-0.4g/L of metal chelating agent, 0.5-1% of owf dispersing agent, 1.0-2.0% of owf high-temperature leveling agent and 0.3-0.8g/L of glacial acetic acid, and operating at the temperature of 125-; cooling to 80 deg.C and discharging liquid; then reducing and cleaning the fabric, adding 1.0-3.0g/L of acidic reducing cleaning agent and 0.2-0.4g/L of citric acid, and treating for 15-25min at 75-95 ℃.

4. The method for preparing the flame-retardant, warm-keeping, light-weight and thin napped fabric according to claim 3, characterized in that YH-56 is adopted as the metal chelating agent, WS is adopted as the dispersant, 3620 is adopted as the high-temperature leveling agent, and MC is adopted as the acidic reducing cleaning agent.

5. The method for preparing the flame-retardant, warm-keeping, light-weight and thin-weight napped fabric according to claim 2, characterized in that in step S4, the specific implementation manner of the soft sizing is as follows: padding the fabric with a softening agent on a setting machine, setting the temperature of the setting machine at 130 ℃, and setting the cloth speed at 10-30 m/min; the softener is NVS, and the using amount is 20-30 g/L.

6. The method for preparing the flame-retardant, warm-keeping, light-weight and thin-weight napping fabric according to claim 2, characterized in that in step S5, the napping is specifically realized in the following manner: the plus and minus surfaces are respectively napped twice, the bending needle speed is 155rpm for 130 plus materials, the straight needle speed is 150rpm for 125 plus materials, the cloth speed is 10-16m/min, the cloth spreading roller speed is 320rpm for 280 plus materials, the cleaning roller speed is 650rpm for 580 plus materials, the main drum speed is 160rpm for 140 plus materials, and the cloth discharging roller speed is 5-10 m/min.

7. The method for preparing the flame-retardant, warm-keeping, light-weight, thin and thin napped fabric according to claim 2, characterized in that in step S6, the intermediate sizing process parameters are as follows: the setting temperature is 150-.

8. The method for preparing the flame-retardant, warm-keeping, light-weight, thin and thin napped fabric according to claim 2, characterized in that in step S7, the carding process parameters are as follows: the speed of the curved needle is 50-80rpm, the speed of the straight needle is 60-80rpm, the cloth speed is 18-30m/min, the speed of the cleaning roller is 580-650rpm, and the speed of the main drum is 130-160 rpm.

9. The method for preparing the flame-retardant, warm-keeping, light-weight, thin and light-weight napped fabric according to claim 2, characterized in that in step S8, the shearing process parameters are as follows: the cloth speed is 10-22m/min, the knife speed is 800-.

10. The method for preparing the flame-retardant, warm-keeping, light-weight, thin and thin napped fabric according to claim 2, characterized in that in step S9, the final sizing process parameters are as follows: the temperature of the setting machine is 150-.

Technical Field

The application relates to the technical field of functional fabrics, in particular to a flame-retardant, warm-keeping, light and thin napping fabric and a preparation method thereof.

Background

Most of the traditional textile fabrics are flammable materials, and when a fire disaster occurs, one of the flammable materials of ubiquitous textiles in the fire disaster field causes great property loss and life safety loss. The existing flame-retardant fabric is mostly obtained by post-finishing means such as coating, compounding and the like. The flame-retardant coating has poor washing resistance, is easy to fall off in wearing and using processes, and has a non-lasting flame-retardant effect. And the composite flame-retardant fabric is usually thicker and heavier, so that the problems of poor hand feeling and poor air permeability of the fabric exist.

The fabric woven by the flame-retardant yarns has a permanent flame-retardant effect, and flame-retardant finishing is not needed, so that the soft hand feeling and wearing comfort of the fabric can be kept. The cost of intrinsic flame-retardant yarns such as aramid fibers, polyimide and the like is high, and the mechanical property and the processing property of common yarns such as terylene, nylon and the like are reduced to a certain extent after the flame-retardant modification. And due to the objective difficulty of flame retardant modification, the actual flame retardant effect of the obtained flame retardant yarn is not very ideal. The flame-retardant yarn spun by using various medium flame-retardant fibers as raw materials can have a good flame-retardant effect, but the characteristics of the fiber components are considered in the subsequent weaving and processing process, so that the weaving, dyeing and finishing processing of the flame-retardant yarn have certain difficulty.

Therefore, a new solution is needed to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the first purpose of the application is to provide the flame-retardant, warm-keeping and light and thin napping fabric which has the advantages of permanent flame retardance, good warm-keeping effect, soft fabric and comfortable wear.

The second purpose of the application is to provide a preparation method of the flame-retardant, warm-keeping, light and thin napping fabric, the production process is optimized, the process flow is greatly shortened, the stability is good, the fabric is suitable for large-scale production, and the application prospect is good.

In order to achieve the first purpose, the application provides the following technical scheme:

the flame-retardant, warm-keeping and light and thin napped fabric is characterized in that the napped fabric is a double-sided napped structure consisting of 21-26% of loop yarns and 74-79% of connecting yarns in percentage by weight, wherein the loop yarns are flame-retardant blended yarns, and the connecting yarns are flame-retardant filaments;

the terry yarn is selected from one of flame-retardant blended yarn 1, flame-retardant blended yarn 2 and flame-retardant blended yarn 3;

the flame-retardant filament is selected from one of a 100D flame-retardant polyester filament yarn and a 100D flame-retardant nylon filament yarn;

the flame-retardant blended yarn 1 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of wool and 15% of aramid;

the flame-retardant blended yarn 2 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant viscose and 15% of aramid;

the flame-retardant blended yarn 3 is prepared from the following raw materials in percentage by weight: 35% of 21S/1 modacrylic, 20% of flame-retardant vinylon, 30% of flame-retardant tencel and 15% of aramid fiber.

By adopting the technical scheme, the modacrylic is a modified acrylic fiber, is formed by copolymerizing an acrylonitrile monomer and a vinyl compound containing a flame-retardant element, has the hand feeling similar to wool and high flame retardance, is free from melting in combustion, and has acid resistance and chemical agent resistance. The flame-retardant vinylon is flame-retardant fiber with polyvinyl alcohol as a main component, has a limiting oxygen index of more than 28, has high flame retardance and is free from melting during combustion. The aramid fiber is high-temperature-resistant and flame-retardant fiber, has high flame retardance, and the flame-retardant tencel is prepared from natural plant fiber serving as a raw material and has multiple excellent performances of natural fiber and synthetic fiber.

Different from the flame-retardant fabric obtained by traditional flame-retardant after-finishing, the flame-retardant fabric obtained by blending various raw materials has lasting flame-retardant effect, is soft and comfortable, and has a warm-keeping function.

Further preferably, the method comprises the following production steps:

s1, weaving the fabric; s2, dyeing; s3, drying; s4, softening and shaping; s5, napping; s6, intermediate sizing; s7, combing; s8, shearing; and S9, finally shaping.

More preferably, in step S2, the specific implementation manner of dyeing is: placing the fabric in a high-temperature high-pressure overflow dyeing machine with a bath ratio of 1 (10-15), dyeing by adopting disperse dye, adding 0.2-0.4g/L of metal chelating agent, 0.5-1% of owf dispersing agent, 1.0-2.0% of owf high-temperature leveling agent and 0.3-0.8g/L of glacial acetic acid, and operating at the temperature of 125-; cooling to 80 deg.C and discharging liquid; then reducing and cleaning the fabric, adding 1.0-3.0g/L of acidic reducing cleaning agent and 0.2-0.4g/L of citric acid, and treating for 15-25min at 75-95 ℃.

By adopting the technical scheme, the disperse dye without water-soluble groups on the structure is uniformly dispersed into the dye solution by means of the dispersant, so that the blended fabric is uniformly dyed.

More preferably, YH-56 is adopted as the metal chelating agent, WS is adopted as the dispersant, 3620 is adopted as the high-temperature leveling agent, and MC is adopted as the acidic reducing cleaning agent.

By adopting the technical scheme, YH-56 has strong complexing ability to calcium, magnesium and metal ions and does not generate foam, and can improve the stability of dye bath, improve the color light and improve the brightness by adding the complex into the dye solution. 3620 the high temperature levelling agent is a levelling agent with excellent slow dyeing performance, and can better control the dye coloring speed to achieve the levelling effect. MC has the function of reducing disperse dyes under the weak acid condition, and can thoroughly remove unfixed dyes on the fabrics, so that the fabrics can obtain higher fastness and vividness.

More preferably, in step S4, the specific implementation manner of the soft sizing is: padding the fabric with a softening agent on a setting machine, setting the temperature of the setting machine at 130 ℃, and setting the cloth speed at 10-30 m/min; the softener is NVS, and the using amount is 20-30 g/L.

By adopting the technical scheme, the fabric is immersed into the NVS softening agent, namely in a chemical sizing mode, and the process conditions are adopted, so that the fabric is endowed with excellent soft hand feeling and better smoothness.

More preferably, in step S5, the specific implementation manner of napping is: the plus and minus surfaces are respectively napped twice, the bending needle speed is 155rpm for 130 plus materials, the straight needle speed is 150rpm for 125 plus materials, the cloth speed is 10-16m/min, the cloth spreading roller speed is 320rpm for 280 plus materials, the cleaning roller speed is 650rpm for 580 plus materials, the main drum speed is 160rpm for 140 plus materials, and the cloth discharging roller speed is 5-10 m/min.

By adopting the technical scheme, two sides of the fabric are respectively napped, the obtained fabric is high in softness and further improved in heat preservation degree by adopting special technological parameters, and in addition, the technological difficulty obtained by adopting the technological parameters is greatly reduced, so that the product value is increased, and the style and the type of the fabric are enriched.

More preferably, in step S6, the intermediate sizing process parameters are: the setting temperature is 150-.

By adopting the technical scheme, the fabric is subjected to intermediate sizing by adopting the process parameters, so that the fabric is endowed with excellent tensile stress relaxation capacity, the crystallinity and stability of the fiber are improved, and the boiling water shrinkage rate is reduced.

In order to achieve the second purpose, the application provides the following technical scheme:

more preferably, in step S7, the carding process parameters are: the speed of the curved needle is 50-80rpm, the speed of the straight needle is 60-80rpm, the cloth speed is 18-30m/min, the speed of the cleaning roller is 580-650rpm, and the speed of the main drum is 130-160 rpm.

By adopting the technical scheme, the loose fiber hairs on the surface of the fabric are combed towards one direction, so that the subsequent shearing treatment is convenient.

More preferably, in step S8, the shearing process parameters are: the cloth speed is 10-22m/min, the knife speed is 800-.

By adopting the technical scheme, the plush on the surface of the fabric is sheared to be parallel and level by adding the shearing process, so that the plush fibers on the surface of the fabric are parallel and level in length.

More preferably, in step S9, the final sizing process parameters are: the temperature of the setting machine is 150-.

By adopting the technical scheme, the final shaping is matched with the intermediate shaping so as to further endow the fabric with excellent tensile stress relaxation capacity, improve the crystallinity and stability of the fiber and reduce the boiling water shrinkage rate.

In summary, compared with the prior art, the application has the following beneficial effects:

(1) the blended flame-retardant yarn is used as the loop yarn, the flame-retardant silk yarn is used as the connecting yarn, and the two sides of the fabric are napped, so that compared with the flame-retardant fabric obtained by traditional flame-retardant after-finishing, the flame-retardant fabric has the advantages of lasting flame-retardant effect, softness and comfort, warm keeping function and relatively low cost;

(2) according to the method, the special process is adopted to carry out napping treatment on the fabric, the process difficulty that vinylon, wool and the like are not easy to nappe is overcome, the product value is increased, and the style and the type of the fabric are enriched.

Detailed Description

The present application will be described in detail with reference to examples. It is worth noting that the individual starting components are commercially available in general in this application.