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A kind of processing method of broken leather

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

Active Publication Date: 2018-05-11
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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  • A kind of processing method of broken leather
  • A kind of processing method of broken leather
  • A kind of processing method of broken leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] A kind of processing method of broken leather of the present embodiment, comprises the following steps:

[0096] (1) Material selection: choose one or two of the broken leather and leftover leather materials as the leather embryo, and set aside;

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

[0098] (3) Roller balding and compaction: use a roller glazing machine to perform multiple roller coating processes on the leather embryo coated with resin-filled materials, so that the leather embryo can reach the real feeling of the first layer of skin;

[0099] (4) Scratching and repairing ointment: apply a layer of repairing ointment on the leather embryo with a scraper;

[0100] (5) Calendering: use a roller calender to flatten the skin embryo;

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

[0102] (7) Sand p...

Embodiment 2

[0145] The difference between this embodiment and embodiment 1 is: the filling resin of this embodiment is made up of the raw material of following weight part:

[0146] Small molecule acrylic resin 40-65 parts

[0147] Macromolecular acrylic resin 35-60 parts

[0148] Borax 5-15 parts

[0149] Composite lead salt stabilizer 1-8 parts

[0150] Kaolin 2-10 parts.

[0151] Wherein, the repairing ointment consists of the following raw materials in parts by weight:

[0152] Polyoxypropylene glycol 50-80 parts

[0153] 20-32 parts of polyvinylpyrrolidone

[0154] Stearic acid 12-20 parts

[0155] Polishing soft wax 12-18 parts

[0156] Aluminum stearate 6-15 parts

[0157] Light calcium carbonate 1-5 parts

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

[0159] Casein 1-5 parts

[0160] 10-40 parts of water.

[0161] Wherein, the masking resin consists of the following raw materials in parts by weight:

[0162] 20-35 parts of polybutadiene resin

[0163...

Embodiment 3

[0185] The difference between this embodiment and embodiment 1 is: the filling resin of this embodiment is made up of the raw material of following weight part:

[0186] Small molecule acrylic resin 40-65 parts

[0187] Macromolecular acrylic resin 35-60 parts

[0188] Borax 5-15 parts

[0189] Composite lead salt stabilizer 1-8 parts

[0190] Kaolin 2-10 parts.

[0191] Wherein, the repairing ointment consists of the following raw materials in parts by weight:

[0192] Polyoxypropylene glycol 50-80 parts

[0193] 20-32 parts of polyvinylpyrrolidone

[0194] Stearic acid 12-20 parts

[0195] Polishing soft wax 12-18 parts

[0196] Aluminum stearate 6-15 parts

[0197] Light calcium carbonate 1-5 parts

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

[0199] Casein 1-5 parts

[0200] 10-40 parts of water.

[0201] Wherein, the masking resin consists of the following raw materials in parts by weight:

[0202] 20-35 parts of polybutadiene resin

[0203...

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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, there is a large amount of natural leather leftovers, if it can be reused, especially processed into regenerated leather, considerable wealth will be generated, and at the same time, it will have a positive impact on green energy saving and environmental protection. significance. [0003] At present, the methods of utilizing the leftovers of natural corium to process regenerated leather include: fragment bonding method, fiber bonding method and fiber stabbing method. Among them, the fragment bonding method refers to the process of first processing the corium into corium fragments and then bonding them into leather; the fiber bonding method refers to the processing method of first processing the corium into collagen fibers and then bonding them into leather. In addition, leather ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/02B32B9/04B32B37/00B32B38/00B32B38/06C09D133/00C08L71/02C08L39/06C08L75/04C08L47/00C08L97/02C08L89/00C08K13/02C08K5/09C08K5/098C08K3/26C08K3/36C08K5/103C08K3/22
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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