Processing method of broken leather

A processing method and leather breaking technology, applied in the direction of chemical instruments and methods, lamination, application, etc., can solve the problems of low added value of products, low utilization rate of leather materials, thick fiber structure, etc., and achieve excellent gloss and repair damage Good effect, soft touch effect

Active Publication Date: 2016-04-20
DONGGUAN TIANYI LEATHER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the leather can also be broken into regenerated leather, but the fibrous structure of regenerated leather is thick, the shape of the leather is uneven, the utilization rate of the leather is low, and the added value of the product is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] The method for processing shredded leather in this embodiment includes the following steps:

[0096] (1) Material selection: select one or two of the shredded leather and corner leather as the skin embryo and spare;

[0097] (2) Coating filling resin: coating a layer of filling resin material on the crust;

[0098] (3) Roller compaction: Use a roller polisher to carry out multiple roll coating processes on the skin embryo coated with filled resin material, so that the skin embryo reaches the actual feeling of the first layer of skin;

[0099] (4) Scratch repairing ointment: apply a layer of repairing ointment on the skin embryo with a squeegee;

[0100] (5) Calendering: flatten the crust with a roller polishing platen;

[0101] (6) The first roll coating of masking resin: Coat a layer of masking resin on the crust to cover the defective parts of the crust;

[0102] (7) Sand press board: process the covered skin embryo with sand press board;

[0103] (8) The second roll coating of ma...

Embodiment 2

[0145] The difference between this embodiment and embodiment 1 is that the filling resin of this embodiment is composed of the following parts by weight of raw materials:

[0146] 40-65 parts of small molecule acrylic resin

[0147] Macromolecular acrylic resin 35-60 parts

[0148] 5-15 parts of borax

[0149] 1-8 parts of composite lead salt stabilizer

[0150] 2-10 parts of kaolin.

[0151] Among them, the repairing ointment is composed of the following parts by weight:

[0152] Polyoxypropylene glycol 50-80 parts

[0153] 20-32 parts of polyvinylpyrrolidone

[0154] 12-20 parts of stearic acid

[0155] Polishing soft wax 12-18 parts

[0156] 6-15 parts of aluminum stearate

[0157] 1-5 parts of light calcium carbonate

[0158] Acrylic resin polyurethane copolymer resin 1-5 parts

[0159] Casein 1-5 parts

[0160] 10-40 parts of water.

[0161] Among them, the masking resin is composed of the following parts by weight of raw materials:

[0162] 20-35 parts of polybutadiene resin

[0163] 50-80 par...

Embodiment 3

[0185] The difference between this embodiment and embodiment 1 is that the filling resin of this embodiment is composed of the following parts by weight of raw materials:

[0186] 40-65 parts of small molecule acrylic resin

[0187] Macromolecular acrylic resin 35-60 parts

[0188] 5-15 parts of borax

[0189] 1-8 parts of composite lead salt stabilizer

[0190] 2-10 parts of kaolin.

[0191] Among them, the repairing ointment is composed of the following parts by weight:

[0192] Polyoxypropylene glycol 50-80 parts

[0193] 20-32 parts of polyvinylpyrrolidone

[0194] 12-20 parts of stearic acid

[0195] Polishing soft wax 12-18 parts

[0196] 6-15 parts of aluminum stearate

[0197] 1-5 parts of light calcium carbonate

[0198] Acrylic resin polyurethane copolymer resin 1-5 parts

[0199] Casein 1-5 parts

[0200] 10-40 parts of water.

[0201] Among them, the masking resin is composed of the following parts by weight of raw materials:

[0202] 20-35 parts of polybutadiene resin

[0203] 50-80 par...

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Abstract

The invention relates to the technical field of leather processing, in particular to a processing method of broken leather. The processing method comprises steps as follows: (1) material selection; (2) coating and filling of resin; (3) burnishing and compacting; (4) blade coating of patching paste; (5) calendaring; (6) first roller coating of covering resin; (7) pressing by a sand board; (8) second roller coating of the covering resin; (9) film attaching; (10) knurling; (11) spraying of a feeling agent, and preparation of a finished product leather. Wastes are processed into top layer leather, the utilization rate of the leather is high, the quality of the prepared finished product leather is close to the top layer leather, the grain side and the texture are natural, the leather can be used for pairing of shoes and applied as fabric of children's shoes, and the additional value of the finished product leather is substantially increased.

Description

Technical field [0001] The invention relates to the technical field of leather processing, in particular to a method for processing broken leather. Background technique [0002] In the prior art, the amount of leftover material of natural leather is very large. If it can be used for secondary use, especially secondary processing into recycled leather, it will generate considerable wealth, and at the same time, it will have a positive effect on green energy saving and environmental protection. significance. [0003] At present, the methods of using the leftover material of natural leather to process recycled leather include: chip bonding method, fiber bonding method, and fiber stabbing method. Among them, the fragment bonding method refers to the processing of dermis into dermal fragments and then bonding into skin; the fiber bonding method refers to the processing method of processing the dermis into collagen fibers and then bonding into skin. In addition, the leather can also be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/02B32B9/04B32B37/00B32B38/00B32B38/06C09D133/00C09D7/12C08L71/02C08L39/06C08L75/04C08L47/00C08L97/02C08L89/00C08K13/02C08K5/09C08K5/098C08K3/26C08K3/36C08K5/103C08K3/22
CPCB32B9/025B32B9/04B32B9/041B32B38/00B32B38/06B32B2437/02C08L71/02C08L101/00C08L2205/025C08L2205/035C09D133/00C08L33/00C08K2003/387C08K3/346C08L39/06C08L75/04C08L89/00C08K13/02C08K5/09C08K5/098C08K2003/265C08L47/00C08L97/02C08K3/36C08K5/103C08K2003/2241
Inventor 陈承涛
Owner DONGGUAN TIANYI LEATHER TECH CO LTD
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