The production method of two-color printing oil leather

A production method and printing technology, which are used in leather hammering, leather impregnation, fur finishing, etc., can solve the problems of poor friction and fading, easy peeling of the printing layer, poor waterproofness, etc. The effect of using the range

Active Publication Date: 2021-09-17
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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  • The production method of two-color printing oil 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 sequence, and use 180# and 280# sandpaper to grind the surface in sequence;

[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 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 weight 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...

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Abstract

The invention relates to a method for making two-color printed oil leather, which belongs to the technical field of leather production. The production method of the two-color printing oil leather comprises the following steps: take the dried cow split leather and successively grind the leather → first softening → roller coating with grease → standing → printing → drying → secondary crushing to obtain a two-color printing Oil leather; the roller coating grease is specifically: roller coating grease on the surface of the leather embryo that has been softened once, and the roller coating amount is 10-15g / square foot; the printing is specifically: rolling the printing chemical material to the leather surface , the printing chemical is a mixture of water-based cotton varnish acetate, 2-ethoxyethanol and dye water, the mass ratio of the water-based cotton varnish acetate and 2-ethoxyethanol is 8:1, and the dye water is according to Color needs to be added. The invention enriches the types of oily skins and widens the application range of the oily skins; the prepared two-color printing oily skins also have good water resistance and abrasion 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 Patents(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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