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Processing technique of color-fastness waterproof buffed leather surface

A processing technology and technology of dough skin, applied in the direction of leather surface treatment, leather surface mechanical treatment, small raw hide/large raw hide/leather/fur treatment, etc., can solve the problem of poor wear resistance and scratch resistance, waste of resources and property , reduce the leather usage rate and other issues, to achieve the effect of maintaining the overall effect, prolonging the service life, and simple and easy operation steps

Inactive Publication Date: 2016-07-13
GUANGZHOU HONGGU LEATHER PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Leather products are warm and cold-resistant and are very popular among people. However, once the leather surface is scratched during the application process of traditional crafted leather, it is difficult to repair. The slight rotten surface, trachoma, and scratches on the leather surface will be exposed. If it comes out, it will not only affect the aesthetic effect, but also reduce the utilization rate of leather. At the same time, the color is not rich, and the ventilation effect is poor, resulting in a waste of resources and property. At present, there are many kinds of leather clothing on the market, but the effect of wear resistance and scratch resistance is not good. Great, and some of the leather is hard and uncomfortable to wear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of color fast waterproof nubuck leather surface processing technology, specifically comprises the following steps:

[0022] (1) Cleaning For lightly soiled nubuck leather garments, use sandpaper to polish the blackened and bright parts, and smooth the fleece to make it fluff up, and then spray the color restoration agent; for heavily soiled nubuck leather, use Use hot water at 70-80°C to emulsify the special cleaning agent. Use a medium-soft brush to dip the emulsified special cleaning agent to scrub the surface and inner skirt. After rinsing and drying, gently stretch the upper leather to avoid Wrinkled;

[0023] (2) Nubuck: The surface of the cleaned upper leather is buffed, and the buffing equipment adopts a tension buffing machine, a gap buffing machine or a continuous buffing machine, and the coating is ground by 0.05~0.15mm;

[0024] (3) Spray filler Adjust the amount of filler sprayed according to the position difference of the upper leather to reduce the...

Embodiment 2

[0033] The difference in Example 1 is that the specific components of the filler in the step (3) include 10 parts of capric triglyceride, 2 parts of ethylene glycol, 6 parts of silicone additives, 4 parts of metal aluminum powder, silicone 15 parts of modified polyurethane resin, 5 parts of defoaming and smoothing agent SAF, 6 parts of silane coupling agent, 3 parts of Span, 6 parts of glycerin, 3 parts of chain extender, and 38 parts of solvent. The solvent includes 3 parts of butyl acetate, 6 parts of cyclohexanone, and 2 parts of ethylene glycol butyl ether.

Embodiment 3

[0035] The difference from Example 1 is that the specific ingredients of the filler in the step (3) include 12 parts of capric triglyceride, 2 parts of ethylene glycol, 7 parts of silicone additives, 5 parts of metal aluminum powder, organic 18 parts of silicon-modified polyurethane resin, 5 parts of defoaming smoothing agent SAF, 7 parts of silane coupling agent, 4 parts of Span, 12 parts of glycerin, 5 parts of chain extender, and 45 parts of solvent. The solvent includes 5 parts of butyl acetate, 8 parts of cyclohexanone, and 3 parts of ethylene glycol butyl ether.

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Abstract

The invention discloses a processing technique of a color-fastness waterproof buffed leather surface. The processing technique comprises the following specific steps of cleaning, polishing the leather surface, spraying filler, performing hot compression and fixation, spraying colors, fastening color and performing final treatment. The buffed leather surface prepared by the processing technique disclosed by the invention has the advantages of bright, pure and natural colors, high waterproof property, no shrinkage distortion, high color fastness and slight color fading; an original style and features are basically restored, and soft texture is also guaranteed; stains on suede buffed leather clothing can be better removed; operation steps are simple, convenient and feasible, the integral effect of leather clothing can be maintained, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of leather processing, in particular to a process for color fast waterproof nubuck leather surface. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain and luster, and feels comfortable. Existing leather is mainly used to make clothes, trousers, case bag etc. at present, and existing leather comprises natural leather, and natural leather is bonded one deck elastic fiber. The thickness of natural leather is 0.1-0.4mm, and the thickness of elastic fiber is 0.1-0.3mm. Leather products are warm and cold-resistant and are very popular among people. However, once the leather surface is scratched during the application process of traditional craft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B1/46C14B1/52C14B1/58C14C1/00C14C11/00C14C15/00C14B1/30
CPCC14B1/46C14B1/30C14B1/52C14B1/58C14B2700/07C14B2700/12C14C1/00C14C11/00C14C15/00
Inventor 陈卓文
Owner GUANGZHOU HONGGU LEATHER PRODS
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