Unlock instant, AI-driven research and patent intelligence for your innovation.

leather making process

A technology for making crafts and leather, which is applied in leather manufacturing, leather softening, leather drying, etc. It can solve problems such as complex crafts, and achieve the effects of simplifying crafts, comfortable hand feeling, and improving dry and wet wiping performance

Active Publication Date: 2018-08-24
浙江通天星集团股份有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the shortcomings of relatively complex techniques in the prior art, and provides a leather manufacturing technique

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • leather making process
  • leather making process
  • leather making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The manufacturing process of leather, the process includes the following steps:

[0022] (1) Put the leather base flat into the water squeezer for physical extrusion and vacuum adsorption. The vacuum adsorption time is 115s to remove 90% of the moisture in the skin base;

[0023] (2) Preliminary air-drying, the leather base is suspended in the circulating air for 22 minutes;

[0024] (3) Utilize sandpapers of different thicknesses to grind the dried skin;

[0025] (4) Use the principle of atomized slurry for spraying, and atomized slurry for low-pressure spraying;

[0026] (5) Spraying the color-rubbing effect on the leather base processed in step (4), and spraying the polyurethane dispersion liquid, the polyurethane dispersion liquid includes polyurethane, ammonium stearate, polyacrylamide and butyl acrylate.

[0027] (6) Carry out manual color rubbing to the leather base after spraying the color effect;

[0028] (7) Proofread the color layer of the leather base;

...

Embodiment 2

[0033] The manufacturing process of leather, the process includes the following steps:

[0034] (1) Put the leather base flat into the water squeezer for physical extrusion and vacuum adsorption. The vacuum adsorption time is 115s to remove 90% of the moisture in the skin base;

[0035] (2) Preliminary air-drying, the leather base is suspended in the circulating air for 22 minutes;

[0036] (3) Utilize sandpapers of different thicknesses to grind the dried skin;

[0037] (4) Use the principle of atomized slurry for spraying, and atomized slurry for low-pressure spraying;

[0038] (5) Spraying the color-rubbing effect on the leather base processed in step (4), and spraying the polyurethane dispersion liquid, the polyurethane dispersion liquid includes polyurethane, ammonium stearate, polyacrylamide and butyl acrylate.

[0039] (6) Carry out manual color rubbing to the leather base after spraying the color effect;

[0040] (7) Proofread the color layer of the leather base;

...

Embodiment 3

[0045] The manufacturing process of leather, the process includes the following steps:

[0046] (1) Put the leather base flat into the water squeezer for physical extrusion and vacuum adsorption. The vacuum adsorption time is 115s to remove 90% of the moisture in the skin base;

[0047] (2) Preliminary air-drying, the leather base is suspended in the circulating air for 22 minutes;

[0048] (3) Utilize sandpapers of different thicknesses to grind the dried skin;

[0049] (4) Use the principle of atomized slurry for spraying, and atomized slurry for low-pressure spraying;

[0050] (5) Spraying the color-rubbing effect on the leather base processed in step (4), and spraying the polyurethane dispersion liquid, the polyurethane dispersion liquid includes polyurethane, ammonium stearate, polyacrylamide and butyl acrylate.

[0051] (6) Carry out manual color rubbing to the leather base after spraying the color effect;

[0052] (7) Proofread the color layer of the leather base;

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a leather, and discloses a leather production process. The process comprises the following steps: (1) horizontally spreading a leather billet in a wringing machine, and then performing physical extrusion and vacuum absorbing; (2) primarily drying by air; (3) fluffing the dried leather billet; (4) spraying size; (5) spraying a polyurethane dispersion solution; (6) manually brushing off; (7) checking the color layer of the leather billet; (8) performing top coating. Compared with a traditional production process, the leather production process has the advantages that once water spraying smoothening is saved, so that the process can be simplified, the cost can be saved, and as a result, the economic benefits can be increased; the wet-dry wiping performance of a product can be improved; the process of softening again after brushing off is saved, thus the process can be simplified, the cost can be saved, and meanwhile, the problem of softening agent can be avoided; the adhering firmness of the product can be improved, so that the stripping strength can be greatly improved; the hand feeling of the product is improved, and the finished product is soft and comfortable in touch.

Description

technical field [0001] The invention relates to leather, in particular to a leather making process. Background technique [0002] The traditional process of manufacturing leather includes: leather blank → grinding → primer → softening → spraying → spraying light → spraying color effect → manual color rubbing → softening → color correction layer → top coating, the process is complex and economical Low, the color wiping formula used in the general process cannot make the leather surface soft enough, and it does not have good dry and wet wiping performance. In addition, the softening process after the color wiping is likely to cause sticky dust on the leather surface when softening, etc. question. Contents of the invention [0003] The invention provides a leather manufacturing process aiming at the disadvantages of relatively complicated processes in the prior art. [0004] In order to solve the above technical problems, the present invention is solved through the followin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C14B1/02C14B1/40C14B1/46C14B1/58C14C1/00C14C11/00C14C15/00
CPCC14B1/02C14B1/40C14B1/46C14B1/58C14B2700/01C14C1/00C14C11/00C14C15/00
Inventor 徐祥进兰莉叶永彬夏刚高德良洪文卿王强杨顺黄维超刘斌姚忠曾学礼
Owner 浙江通天星集团股份有限公司