Manufacturing method for double-color printing oily leather

A production method and printing technology, applied in leather hammer, fur finishing, leather impregnation, etc., can solve the problems of easy peeling off of the printing layer, poor rubbing and fading, and poor waterproofness, etc., to broaden the scope of use, easy to operate, rich Kind of effect

Active Publication Date: 2019-04-16
漳州香洲皮革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, most of the high-quality oil wax leather is made from the first layer of cowhide through a multi-step process, and the price is expensive; in addition, the existing printed oil leather has the following shortcomings: poor friction fading, poor water resistance, and poor wear resistance , the printing layer is easy to peel off

Method used

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  • Manufacturing method for double-color printing oily leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The method for making two-color printed oil leather includes the following steps: Grinding: take dry cow split leather, use 180# and 220# sandpaper to grind the bottom in sequence, and use 180# and 280# sandpaper to grind the surface in sequence;

[0027] A soft fall: the time for falling soft is 4h;

[0028] Roller grease: Roller coat water-based nitrocellulose varnish MelioEW-348.B (the mass ratio of water and grease is 1:3) diluted with water on the surface of the leather embryo that has been softened once, and the amount of roller coating is 12g / square foot ;

[0029] stand overnight;

[0030] Printing: Apply printing chemical to the leather surface, add water-based cotton acetate varnish Melio EW-629.B, 2-ethoxyethanol and Supronil HK dye (color: Black W, the quality of dye water added is water-based cotton acetate 2% of varnish) mixed with water and stirred evenly, and the mass ratio of the water-based cotton acetate varnish Melio EW-629.B to 2-ethoxyethanol was...

Embodiment 2

[0034] The method for making two-color printed oil leather includes the following steps: Grinding: take dry cow split leather, use 180# and 220# sandpaper to grind the bottom in sequence, and use 180# and 280# sandpaper to grind the surface in sequence;

[0035] A soft fall: the time to fall soft is 3.5h;

[0036] Roller grease: Roller coat the water-based nitrocellulose varnish Melio EW-348.B (the mass ratio of water, ethanol and grease is 1:1:3) diluted with water and ethanol on the surface of the skin that has been softened once. The amount of roller coating is 10g / square foot;

[0037] stand overnight;

[0038] Printing: Roll the printing chemical onto the surface of the leather, add water-based cotton varnish Melio EW-629.B, 2-ethoxyethanol and Supronil HK dye water (color: Dark Brown 01, the quality of dye water added is water-based 0.9% of cotton varnish acetate) mixed and stirred evenly, the mass ratio of the water-based cotton varnish acetate Melio EW-629.B and 2-et...

Embodiment 3

[0042] The method for making two-color printed oil leather includes the following steps: Grinding: take dry cow split leather, use 180# and 220# sandpaper to grind the bottom in turn, and use 180# and 280# sandpaper to grind the surface in turn;

[0043] A soft fall: the time to fall soft is 4.5h;

[0044] Roller grease: Roller coat water-based nitrocellulose varnish MelioEW-348.B (the mass ratio of water and grease is 1:3) diluted with water on the surface of the leather embryo that has been softened once, and the amount of roller coating is 15g / square foot ;

[0045] stand overnight;

[0046] Printing: Roll the printing chemical onto the surface of the leather, add water-based cotton varnish Melio EW-629.B, 2-ethoxyethanol and Supronil HK dye water (color: Red Brown.B, the quality of the dye water is 0.5% of water-based cotton acetate varnish) mixing and stirring evenly, the mass ratio of described water-based cotton acetate varnish Melio EW-629.B and 2-ethoxyethanol is 8:...

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Abstract

The invention relates to a manufacturing method for double-color printing oily leather, and belongs to the technical field of leather manufacturing. The manufacturing method of the double-color printing oily leather comprises the following steps that a dry cow split leather blank is taken and sequentially subjected to leather fluffing, primary milling, oil roll painting, standing, printing, dryingand secondary milling, and the double-color printing oily leather is obtained; in the step of oil roll painting, oil is roll-painted on the surface of the leather blank obtained after primary milling, and the roll painting amount is 10-15 g per square foot; and in the step of printing, a printing material is roll-painted on the surface of the leather, a mixture of water-based acetic acid cotton gloss oil, 2-ethoxyethanol and dye water is taken as the printing material, the mass ratio of the water-based acetic acid cotton gloss oil to the 2-ethoxyethanol is 8:1, and the dye water is added according to the color needs. According to the manufacturing method for the double-color printing oily leather, the oily leather varieties are enriched, the application range of the oily leather is widened, and the manufactured double-color printing oily leather has the good water resistance and wear resistance.

Description

technical field [0001] The invention belongs to the technical field of leather production, and in particular relates to a production method of two-color printed oil leather. Background technique [0002] Oily wax leather, commonly known as oily leather, is one of the more high-end leather materials. Usually, the leather has an oily and waxy feel through the post-finishing process. Oily waxy leather has the advantages of good softness, good elasticity, and high tension. It is widely used in In the fields of shoe uppers, furniture leather, luggage leather and other fields, printed oil leather is printed with designed flower patterns on the surface of oil wax leather, which can enrich the style of oil leather and present different visual effects. But at present, most of the high-quality oil wax leather is made from the first layer of cowhide through a multi-step process, and the price is expensive; in addition, the existing printed oil leather has the following shortcomings: po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14B1/38C14B1/44C14B1/58C14B15/12C14C9/02
CPCC14B1/38C14B1/44C14B1/58C14B15/12C14C9/02
Inventor 许燕杰林汉彬许维奇陈启明
Owner 漳州香洲皮革有限公司
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