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Production process for leather for painting

A production process and painting technology, applied in special leather manufacturing, small raw hide/large raw hide/leather/fur treatment, application, etc., can solve the problems of complex production method, fading, poor thickness and low softness, etc., to improve production The process is complex, the environmental pollution is small, and the effect of increasing the brightness

Inactive Publication Date: 2012-11-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the leather painting production process still stays in the previous method. The leather painting is produced in the way of handicrafts, that is, the leather is cut into small pieces and pasted on the drawing board, and then processed by hand, such as painting and polishing. The production method is very complicated. , low production efficiency, without the beauty and integrity of painting, in fact, it is more suitable for the name leather carving painting
[0005] The reason for not painting directly on the leather is firstly that there is no leather production process suitable for painting directly on the leather. Such leather should not only have high whiteness, but also have low thickness difference and softness of various parts, and high firmness; secondly After painting directly on the leather, the pigment is easy to fade, and after a period of storage, the pigment is easily oxidized, resulting in discoloration and fading, which greatly reduces the quality of leather painting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Step 1: Soak in water:

[0091] Place the hide in a immersion solution at 30°C that is twice its mass and rotate intermittently for 12 hours;

[0092] Step 2: De-meat:

[0093] Carry out mechanical de-fleshing treatment on the skin after soaking in water;

[0094] Step Three: Degreasing:

[0095] Place the de-fleshed hide in a 35°C degreasing solution twice its mass, and rotate it intermittently for 1 hour;

[0096] Step 4: Liming and hair removal:

[0097] Place the degreased hide in a 35°C liming solution of 1 times its mass, and rotate it intermittently for 12 hours;

[0098] Step Five: Deashing:

[0099] Put the liming skin in the 25°C deliming solution 0.5 times its mass, and measure the pH after intermittent rotation for 1 hour;

[0100] Step Six: Soften:

[0101] Place the deashed hide in a 25°C softening solution that is twice its mass, and rotate it intermittently for 1 hour;

[0102] Step Seven: Pickling:

[0103] Put the deashed skins in 25°C picklin...

Embodiment 2

[0126] Step 1: Soak in water:

[0127] Place the hide in immersion solution at 32°C which is three times its mass and rotate intermittently for 15 hours;

[0128] Step 2: De-meat:

[0129] Carry out mechanical de-fleshing treatment on the skin after soaking in water;

[0130] Step Three: Degreasing:

[0131] Place the de-fleshed hide in a 37°C degreasing solution that is three times its mass, and rotate it intermittently for 1 hour;

[0132] Step 4: Liming and hair removal:

[0133] Place the degreased skins in a 36°C liming solution of 1 times its mass, and rotate it intermittently for 15 hours;

[0134] Step Five: Deashing:

[0135] Place the liming skin in the deliming solution at 28°C which is 0.9 times its mass, and measure the pH after intermittent rotation for 1 hour;

[0136] Step Six: Soften:

[0137] Place the deashed skin in a 28°C softening solution that is 1 times its mass, and rotate it intermittently for 1 hour;

[0138] Step Seven: Pickling:

[0139] P...

Embodiment 3

[0162] Step 1: Soak in water:

[0163] Place the hide in a immersion solution at 33°C that is 4 times its mass and rotate intermittently for 18 hours;

[0164] Step 2: De-meat:

[0165] Carry out mechanical de-fleshing treatment on the skin after soaking in water;

[0166] Step Three: Degreasing:

[0167] Place the de-fleshed hide in a 38°C degreasing solution that is 4 times its mass, and rotate it intermittently for 2 hours;

[0168] Step 4: Liming and hair removal:

[0169] Place the degreased hide in the 37°C liming solution twice its mass, and rotate it intermittently for 18 hours;

[0170] Step Five: Deashing:

[0171] Put the liming skin in the deliming solution at 31°C with 1.3 times its mass, and measure the pH after intermittent rotation for 2 hours;

[0172] Step Six: Soften:

[0173] Place the deashed hide in a 31°C softening solution twice its mass, and rotate it intermittently for 2 hours;

[0174] Step Seven: Pickling:

[0175] Put the delimed hides in ...

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Abstract

The invention relates to a production process for leather for painting. The modern leather picture does not adopt the advanced production process for leather products, has a poor manufacturing method, a complex manufacturing process and single style, has no storage stability, and has high possibility of fading. The leather for painting is prepared by the steps of soaking in water, removing meat, degreasing, liming and removing hair, removing lime, softening, soaking in acid, tanning, extracting alkali after tanning, drying, painting, coating, shaping, mounting and obtaining the finished product, so that the leather has storage stability and is not damaged by worms when being placed for a long time. Painting adopts different painting methods of Chinese painting and oil painting, so that different styles are shown. The leather subjected to painting is treated, so the leather is anti-oxidant and is not faded along with the time. Chromium is not used in the tanning process, so environmental pollution is little.

Description

technical field [0001] The invention relates to a leather production process, in particular to a production process of painting leather. Background technique [0002] Leather painting (also known as leather carving painting) is a handicraft of great artistic value invented by the Mongolian people. Leather painting has a very long history. The origin of leather painting can be traced back to the nomadic era, and sheepskin maps and simple decorative paintings are the most common. In addition to maintaining the simple charm, modern Mongolian leather painting is more integrated into modern national techniques. It needs dozens of processes such as lacquer, coloring, layer dyeing, polishing, shaping, embossing and embossing. Leather painting makes full use of and demonstrates the characteristics of natural leather, such as smooth lines, unique composition, strong three-dimensional effect, and soft colors, giving people a new artistic enjoyment. [0003] Leather paintings are gi...

Claims

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Application Information

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IPC IPC(8): C14C13/00
Inventor 强涛涛李飞虎王学川任龙芳
Owner SHAANXI UNIV OF SCI & TECH
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