Preparation method of figured islands-in-sea wool suedette interior trim leather of car

A technology for automotive interiors and velvet imitation suede, which is applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of inability to use in batches, difficult processing, complex production technology, etc., and achieve environmental protection development and dimensional stability Good effect with broad market prospect

Active Publication Date: 2015-10-07
江苏尚科聚合新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The leather based on the non-woven fabric produced by Dingdao sea island fiber belongs to the fifth generation of artificial leather. The leather produced is called Dingdao microfiber leather. Its production technology is complicated and the processing is difficult.
Due to the use of fixed island sea-island fibers, the final dyeing effect of the product is much higher than that of indefinite island products. In addition, because toluene is not used in the process, the product has no toluene residue, but due to its own process characteristics, the dimensional stability,

Method used

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Examples

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Effect test

preparation example Construction

[0024] The preparation method of suede imitation suede automobile upholstery leather of the present invention, it comprises the following steps: (a) 100% 3.5D * 51mm polyester sea-island fibers are opened by a non-woven opener, and then passed through a fan The pipeline sends the fibers to the opener for further opening to make the fibers snowflake-shaped, and then press them into fiber batts; (b) weigh the fiber batts and feed them into the carding machine to separate the fibers into single fibers and To form a thin layer of reticular fibers, the thin layer of reticular fibers is pre-needled by a needle punching machine, and then transported to a double-needle board, and needled up and down to make it entangled and entangled to form a non-woven fabric; (c) the non-woven fabric Transport it to the pair loom for shaving, and then pass through the hot roller at 110~120°C at a speed of 10~15m / min for ironing. The needle density of the pair loom is 700~850 pricks / cm 2 , the needli...

Embodiment 1

[0027] The present embodiment provides a kind of preparation method of fixed island velvet imitation suede automobile upholstery leather, and it comprises the following steps:

[0028] (a) Open 100% 3.5D×51mm polyester sea-island fibers through a non-woven opener, and then send the fibers to the opener through the fan duct for further opening to make the fibers snowflake-shaped, and then Pressed into fiber batting;

[0029] (b) Weigh the fiber batt and feed it into the carding machine to separate the fibers into single fibers and form a thin layer of reticular fibers. The thin layer of reticular fibers is pre-needled by a needle punching machine, and then transported to the double-needle The board is needled up and down to make it entangled and cohere to form a non-woven fabric;

[0030] (c) Transport the non-woven fabric to the pair of looms for shaving, and then pass through a hot roller at 110°C at a speed of 10m / min for ironing. The needle density of the pair of looms is ...

Embodiment 2

[0036] The present embodiment provides a kind of preparation method of fixed island velvet imitation suede automobile upholstery leather, and it comprises the following steps:

[0037] (a) Open 100% 3.5D×51mm polyester sea-island fibers through a non-woven opener, and then send the fibers to the opener through the fan duct for further opening to make the fibers snowflake-shaped, and then Pressed into fiber batting;

[0038] (b) Weigh the fiber batt and feed it into the carding machine to separate the fibers into single fibers and form a thin layer of reticular fibers. The thin layer of reticular fibers is pre-needled by a needle punching machine, and then transported to the double-needle The board is needled up and down to make it entangled and cohere to form a non-woven fabric;

[0039] (c) Transport the non-woven fabric to the pair of looms for shaving, and then pass through a hot roller at 120°C at a speed of 15m / min for ironing. The needle density of the pair of looms is ...

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Abstract

The invention relates to a preparation method of figured islands-in-sea wool suedette interior trim leather of a car. The preparation method comprises the following steps: (a) opening 100% of 3.5Dx51mm Dacron figured islands-in-sea fibers through a nonwoven opening machine; (b) needling vertically so that the fibers are entangled and occluded to form a fabric; (c) transporting the fabric to a fibrewoven machine for surface finishing, and then ironing the fabric by adopting a heat roller with temperature of 110-120 DEG C at speed of 10-15m/min; (d) soaking the ironed fabric into polyving akohol solution with temperature of 80-90 DEG C and mass concentration of 8-10%, then soaking in waterborne polyurethane dispersoid, drying at 110-115 DEG C, and placing into deionized water with temperature of 80-95 DEG C for removing polyvinyl alcohol, thus obtaining suedette, namely Beth; (e) soaking the Beth into NaOH or KOH solution with mass concentration of 5-10%, wherein the pick-up ratio is 100%; adjusting the pH till the pH is neutral, and drying; (f) dyeing and drying; and (g) carrying out sanding treatment. With the adoption of the preparation method, polyvinyl alcohol can be removed in alkaline solution, and thus the suedette interior trim leather with good breathability is obtained.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a method for preparing automotive interior leather, in particular to a method for preparing suede-like interior leather of velvet. Background technique [0002] The development process of artificial leather has gone through six major technological changes. From the first generation of woven fabrics coated with polyvinyl chloride resin, the second generation of warp-knitted fabrics coated with polyurethane to the third generation of ordinary staple fiber non-woven fabrics coated with polyurethane, collectively referred to as synthetic leather. [0003] The fourth generation uses the indefinite island staple fiber non-woven base fabric, and the leather produced is called indeterminate island microfiber leather. Indeterminate island staple fiber is usually made of polyamide and polyethylene blended at a ratio of 50:50 to make a non-woven base fabric, and then toluene is used to draw ...

Claims

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Application Information

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IPC IPC(8): D06N3/14D04H1/4382D04H1/46C08L75/04C08L39/04
Inventor 张晓良沈为春
Owner 江苏尚科聚合新材料有限公司
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