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Production method of superfine fiber synthetic leather

A technology of superfine fiber and production method, which is applied in the field of synthetic leather, can solve problems such as insufficient product strength, and achieve the effect of improving peel strength

Inactive Publication Date: 2014-08-27
浙江元新实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a production method of ultrafine fiber synthetic leather to solve the technical problem of insufficient product strength in the prior art of ultrafine fiber synthetic leather thin products produced by the method of splitting the leather

Method used

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  • Production method of superfine fiber synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027]Select indeterminate island superfine fibers whose island component is polyamide and sea component is polyethylene with a total fineness of 6dtex. First, use a coarse opener to open the coarse part of the fiber, and then use a fine opener to further finely open the fiber. Then the fiber is further mixed and balanced in the mixing warehouse, the fiber is fully carded by the carding machine and output into a web, and then the fiber web is folded back and forth by the web lapper to form a 20-layer fiber web for output, and then 6 needle punching machines Repeated needle-punching up and down to entangle the fibers to make a grammage of 180g / m 2 , thickness 1.2mm, acupuncture density 1420 pricks / cm 2 Microfiber nonwovens.

[0028] Pass the two layers of superfine fiber non-woven fabrics through the overfeeding device, spread them on the conveying mesh curtain of the relaxation setting machine, and enter the 6-section pre-shrinking oven of the relaxation setting machine. The ...

Embodiment 2

[0031] Select indeterminate island superfine fibers whose island component is polyamide and sea component is polyethylene with a total fineness of 6dtex. First, use a coarse opener to open the coarse part of the fiber, and then use a fine opener to further finely open the fiber. Then the fiber is further mixed and balanced in the mixing warehouse, the fiber is fully carded by the carding machine and output into a web, and then the fiber web is folded back and forth by the web lapper to form a 16-layer fiber web for output, and then 6 needle punching machines Repeated needle-punching up and down to entangle the fibers to make a grammage of 120g / m 2 , thickness 1.0mm, acupuncture density 1420 pricks / cm 2 Microfiber nonwovens.

[0032] Pass the three layers of superfine fiber non-woven fabrics through the overfeeding device, spread them on the conveying mesh curtain of the relaxation setting machine, and enter the six-section pre-shrinking oven of the relaxation setting machine....

Embodiment 3

[0035] Select the indeterminate island superfine fiber whose island component is polyester and sea component is polyethylene with a total fineness of 6dtex. First, use a coarse opener to open the coarse part of the fiber, and then use a fine opener to further finely open the fiber. Then the fibers are further mixed and balanced in the mixing warehouse, the fibers are fully carded by the carding machine and output into a web, and then the fiber web is folded back and forth by the web lapper into a 7-layer fiber web for output, and then after 7 sets of drafting After 6 working pressures are 100×10 5 Pa, 110×10 5 Pa, 110×10 5 Pa, 130×10 5 Pa, 130×10 5 Pa, 150×10 5 Pa's water needles are hydroentangled and then dried to make a grammage of 100g / m 2 , Thickness 0.6mm microfiber nonwoven fabric.

[0036] Pass the four layers of superfine fiber non-woven fabrics through the overfeeding device, spread them on the conveying mesh curtain of the relaxation setting machine, and enter...

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Abstract

The invention provides a production method of superfine fiber synthetic leather. The production method comprises the following steps: A, preparing superfine fiber non-woven fabrics which are not greater than 200g / m<2> in weight by seal-island fibers with polyethylene serving as the sea component; B, overlapping the superfine fiber nonwoven fabrics into a plurality of layers at 90 to 150 DEG C to realize compounding, so as to obtain a multi-layer compounding and sizing fabric; C, dipping the multi-layer compounding and sizing fabric by polyurethane, and extracting by toluene, so as to obtain the base material of the superfine fiber synthetic leather; and D, separating and layering the base material of the superfine fiber synthetic leather, thus obtaining the superfine fiber synthetic leather. According to the production method of the superfine fiber synthetic leather, the splitting method in the conventional technology for producing thin products can be avoided implementing, therefore, the obtained superfine fiber synthetic leather has no mechanical damage; and the stretching strength, the tearing strength and the peeling strength of the produced superfine fiber synthetic leather are obviously improved.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a method for producing superfine fiber synthetic leather. Background technique [0002] Microfiber synthetic leather has a wide range of applications in clothing, apparel, leather goods and other fields. In the prior art, the production of superfine fiber synthetic leather is usually first to obtain a base fabric from superfine fibers through a weaving or non-woven process, and then to obtain a superfine fiber synthetic leather through processes such as dipping in polyurethane, toluene extraction, and post-finishing. [0003] The manufacturing method of superfine fiber synthetic leather disclosed in Chinese patent CN101457482B "A superfine fiber woven fabric synthetic leather and its manufacturing method" includes: (1) Two high molecular polymers of "sea" component and "island" component are mixed with Weight ratio 20-60%: 80-40% blended to make 0.1-5 denier sea-island microfibe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14B32B27/04B32B38/10
Inventor 黄自存魏建谊
Owner 浙江元新实业有限公司