Scratch resistant processing method of non-figured island ultrafine fiber napped leather

A technology of ultra-fine fiber and treatment method, which is applied in the directions of fiber treatment, textile material treatment, solvent treatment, etc., can solve the problems of axial discontinuity of the inner fiber island, easy fiber falling off, poor writing ability, etc., so as to improve the looseness of the process. , Improve physical performance, improve the effect of grade

Active Publication Date: 2009-12-02
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has a big limitation: the axial discontinuity and unevenness of the fiber inner island

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Nylon (PA6): polyethylene (PE): ionomer in a weight ratio of 40: 50: 0.1, at a temperature of 280 ° C, a sea-island fiber of 5.0D is obtained through a spinning machine, and 750 g is obtained through a non-woven equipment / m 2 Left and right non-woven fabrics; then ironed to 2.6mm non-woven fabrics, impregnated with PU resin, PE was removed in a toluene tank at 80°C to obtain a PA / PU base fabric; the base fabric piece was made into a 0.8mm thick PA / PU Base cloth, then buffing and finishing to get suede microfiber leather.

Embodiment 2

[0030] PA6: PE: ionomer ratio of 40:50:0.3, 5.5D sea-island fibers were prepared at 270°C, and 750g / m was obtained after carding and laying 2 The non-woven fabric of about 2.6mm is ironed, and after impregnated with PU, PE is removed in a toluene tank at 80°C to obtain the PA / PU base fabric; the base fabric sheet is made into 0.8mm thick PA / PU PU base cloth, then grinding and finishing to get suede microfiber leather.

Embodiment 3

[0032] PA: PE: ionomer ratio of 50:50:0.5, 5.5D sea-island fibers were prepared at 270°C, and 750g / m was obtained after carding and laying 2 The non-woven fabrics of about 2.6mm are ironed, and after impregnated with PU, PE is removed in a toluene tank at 80°C to obtain a colored PA / PU base fabric; the base fabric is made into a 0.8mm thick PA / PU base fabric, then grinding and finishing to get suede microfiber leather.

[0033] In the present invention, due to the effect of ionic compounds, there is a certain amount of cross-linking between the ultrafine fiber "islands" and "islands", which prevents suede from being damaged when products such as gloves, shoes, clothing and bags are made of suede. The shedding of the middle fibers greatly improves the scratch resistance of the suede leather.

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Abstract

The invention relates to a scratch resistant processing method of non-figured island ultrafine fiber napped leather, which comprises the following steps: taking PA6 as an island; taking PE with low density as the sea; adding a small amount of ionic polymer; and spinning an ultrafine fiber by a single-screw blending method. The ultrafine fiber is needled into non-woven fabrics, impregnated with PU resin, reduces toluene contents, and is expanded for drying, sliced, ground, and the like to manufacture ultrafine fiber napped leather. The islands of the ultrafine fiber are partially crosslinked due to the function of ionic compound in a production flow so as to prevent the fiber in the napped leather from falling when the napped leather is used as a material to be made into products of gloves, shoes, clothing, bags, suitcases, and the like, thereby greatly improving the scratch resistance of the napped leather.

Description

technical field [0001] The invention relates to an indeterminate island superfine fiber suede, in particular to a scratch-resistant treatment method for the indefinite island superfine fiber suede. Background technique [0002] The scratch resistance of suede leather is an important indicator in the use of superfine fiber synthetic leather. Now the fibers of domestic suede leather are spun by the single-screw extruder method of indeterminate island (see: Zhang Daxing, Wang Rui. Chao Fine fiber production technology and application). This product has a big limitation: the axial discontinuity and unevenness of the inner island of fibers, the fibers are easy to fall off in the subsequent finished products, and the writing property is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a scratch-resistant treatment method for indeterminate island superfine fiber suede leather, aiming to solve the above-mentioned p...

Claims

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Application Information

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IPC IPC(8): D06N3/12D06N7/06D01D5/28D01F8/06D01F8/12D04H1/46D06B9/00D06C19/00D06C11/00D01F6/90D04H1/4382
Inventor 王克亮孙向浩刘文辉邬花元夏佳第
Owner HUAFON MICROFIBER SHANGHAI
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