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Preparation method of colorless-migration high-sunlight-resistance fixed-island superfine fiber suede leather

A technology of superfine fiber and suede, which is applied in the field of leather, can solve the problems of color fastness, light fastness, washing fastness, fine uniformity, hand feeling, poor softness, and difficult color adjustment, etc., to achieve Good hand feel, improved color fastness, easy color effect

Pending Publication Date: 2019-09-03
ZHEJIANG HEXIN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, with the continuous improvement of people's pursuit of life, people have higher and higher requirements for the performance of suede, and the suede produced by the existing technology can no longer meet people's needs.
[0005] However, the currently used suede leather still has the following problems: fine uniformity, hand feeling, and softness are poor; the color is not easy to adjust, and the color fastness, light fastness, and washing fastness are low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of preparation method of the Dingdao superfine fiber suede leather of colorless migration and high resistance to sunlight, comprising the following steps:

[0045] A. Weigh 100 parts by weight of nylon resin or polyester resin and 15-17 parts by weight of masterbatch, mix them evenly, dry them in vacuum at 140-150°C until the water content is less than 25ug / g, and then send them into the twin-screw extruder melt mixing;

[0046] B. Vacuum dry the easily hydrolyzed polyester resin (COPET) at 120-130°C until the water content is less than 25ug / g, and then feed it into a single-screw extruder for melting;

[0047] C. The twin-screw extruder and the single-screw extruder respectively extrude molten materials, spin through the Dingdao spinning assembly, and then undergo air cooling, oiling, and drafting to obtain Dingdao ultrafine fibers, wherein The volume of the island component accounts for 65-68%, and the rest is the sea component;

[0048] D. Make needle-punche...

Embodiment 2

[0066] A kind of preparation method of the Dingdao superfine fiber suede leather of colorless migration and high resistance to sunlight, comprising the following steps:

[0067] A. Weigh 100 parts by weight of nylon resin and 15 parts by weight of color masterbatch, mix evenly, vacuum dry at 140°C until the water content is less than 25ug / g, and then send them into a twin-screw extruder for melting and mixing;

[0068] B. Vacuum-dry the easily hydrolyzable polyester resin (COPET) at 120°C until the water content is less than 25ug / g, and then feed it into a single-screw extruder for melting;

[0069] C. The twin-screw extruder and the single-screw extruder respectively extrude molten materials, spin through the Dingdao spinning assembly, and then undergo air cooling, oiling, and drafting to obtain Dingdao ultrafine fibers, wherein The volume of the island component accounts for 65%, and the rest is the sea component;

[0070] D. Make needle-punched non-woven fabrics through Di...

Embodiment 3

[0089] A kind of preparation method of the Dingdao superfine fiber suede leather of colorless migration and high resistance to sunlight, comprising the following steps:

[0090] A. Weigh 100 parts by weight of polyester resin and 17 parts by weight of color masterbatch, mix them uniformly, dry them in vacuum at 150°C until the water content is less than 25ug / g, and then send them into a twin-screw extruder for melting and mixing;

[0091] B. Vacuum-dry the easily hydrolyzable polyester resin (COPET) at 130°C until the water content is less than 25ug / g, and then feed it into a single-screw extruder for melting;

[0092] C. The twin-screw extruder and the single-screw extruder respectively extrude molten materials, spin through the Dingdao spinning assembly, and then undergo air cooling, oiling, and drafting to obtain Dingdao ultrafine fibers, wherein The volume of the island component accounts for 68%, and the rest is the sea component;

[0093] D. Make needle-punched non-wove...

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Abstract

The invention discloses a preparation method of colorless-migration high-sunlight-resistance fixed-island superfine fiber suede leather. The method comprises the following steps that A, nylon resin and color master batches are weighed separately, dried and fed into a twin-screw extruder; B, easily hydrolyzed polyester resin is dried and sent into a single-screw extruder; C, spinning is performed through a fixed-island spinning assembly, and then through air cooling, oiling and drafting, a fixed-island superfine fiber is obtained; D, a needle-punched nonwoven fabric is prepared through non-woven fabric production equipment; E, a dipping sizing agent is prepared, and the needle-punched nonwoven fabric is impregnated in the dipping sizing agent; F, coagulation is performed through a coagulating bath; G, washing is performed through a washing pool; H, reduction treatment is performed through a reduction tank; I, then drying and sanding are carried out, and the colorless-migration high-sunlight-resistance fixed-island superfine fiber suede leather is obtained. The suede leather obtained by the preparation method has good fine uniformity, hand feeling and softness, easily adjusted colorsand high color fastness, sunlight fastness, washing fastness and the like.

Description

technical field [0001] The invention relates to the field of leather, in particular to a method for preparing a colorless migration high-sun-resistant Dingshima superfine fiber suede leather. Background technique [0002] Suede is a general term for leather that has been ground to a fine suede, with some or all of the grain on the front nubuck and the suede on the flesh side. Pigskin, cowhide, and sheepskin are mostly made by chrome tanning. Because suede leather is only sanded and dyed without chemical coating, it has excellent air permeability and good softness. The suede products are comfortable to wear and have good hygienic performance, so they are widely used in the production of leather shoes, leather garments, leather bags, gloves, etc. [0003] Microfibers are a class of high-tech new fibers developed in modern times, among which sea-island microfibers and their textiles are developing most rapidly. Microfiber synthetic leather is a cross-industry product, and its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00D01F1/02D01F6/92D01F6/90
CPCD01F1/02D01F6/90D01F6/92D06N3/0004D06N3/0011D06N3/0034D06N3/0036D06N3/0061D06N3/0075D06N3/14D06N2209/1678D06N2211/28
Inventor 周志军汪旗顾志豪王腾飞彭文彬
Owner ZHEJIANG HEXIN NEW MATERIAL CO LTD
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