Method for preparing dermal transfer smearing

A production method and finishing technology, applied in chemical instruments and methods, coatings, leather surface treatment, etc., can solve the problems of affecting the appearance or embossing and hand feeling of the outer layer, failing to meet the quality requirements of leather, and complicated processes, etc., to achieve Easy to select and adjust, clear appearance patterns, and simple production methods

Inactive Publication Date: 2007-06-13
邹恒余
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this invention also obviously has the following disadvantages, one is that the rough shape of the skin (substrate) is not only rough, but also has flaws and holes, and the inner layer of the coating is not only heated and rolled on the outer layer, but also heated and liquefied Spraying on the outer layer, or spraying on the skin by heating and liquefying, is a sheet of uniform thickness, which sticks to the skin after heating and (or) pressure, so that the surface of the skin will definitely form high and low unevenness. The appearance is far from the quality requirements of leather. The second is that the inner layer and outer layer are laminated on a flexible resin or paper conveyor belt.
It is conceivable that the inner layer is applied on the outer layer by heating and rolling to make it combined, and then the coating on the conveyor belt combined with the two layers is heated and pressed on the skin to make the inner and outer layers The secondary heating and pressure caused a considerable part of the inner and outer coatings to be mixed and fused together, which seriously affected the appearance or embossing and feel of the outer layer. In this way, the outer layer must be multi-layered to avoid this quality problem, which also Complicate the process and increase the cost
The third is that the inner and outer coatings of this invention are difficult to ensure the integrity of the embossed pattern after the second heating
The fourth is that the multi-layer resin layer is bonded on the leather substrate, causing the breathability of the leather (dermis) and the disappearance of the natural properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First use the commercially available repairing agent containing skin powder, volcanic ash, kaolin and resin components to scrape and mend the disability and flaws on the sheepskin skin, and then spray the water-based acrylic resin liquid with a resin weight percentage of 20% on the skin. On the sheepskin skin, the main component of the water-based acrylic resin spray is water except for the water-based resin. The method of spraying is to spray 2 grams per square centimeter of the skin. Use the meltable acrylic resin below 120°C to screen-print the dot matrix pattern for the first time. There are air holes between the dots, and the thickness of the resin layer is 0.5 filaments. The polyethylene film of the acrylic resin layer is laid flat on the treated sheepskin skin, and rolled under the condition of 100 ℃ and 2 kg pressure, the resin layer sticks to the sheepskin skin, and then removes the polyester film, which is the finished product .

Embodiment 2

[0021] With embodiment one, just embryo skin selects pigskin for use, then water-based polyurethane resin liquid, its resin weight percent composition is 30%, the pigskin embryo skin of every square centimeter area sprays 3 grams, the resin of resin layer selects polyurethane resin layer for use, The thickness of the resin layer is 2 filaments, and the polyester film loaded with the resin layer is flatly stacked on the pigskin, and rolled at a temperature of 110 ° C under a pressure of 4 kg. The resin layer sticks to the embryo skin, and then the polyester film is removed. become a finished product.

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PUM

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Abstract

The invention relates to a manufacture method of coating for true leather transfering, which can be used in the leather precision work craft. The manufacture is: A, first use mending agent to scrape and mend the wound on the leather; B, the resin which can fuse below 130 DEG C is pressed on the thin film; C, spray the water resin fluid on the leather or the thin film coated with the resin in fog mode; D, between 100-110 DEG C temperature conditions, fold the thin film with the resin evenly on the leather, flat or roller press the resin layer with the pressure of 2 to 4 kilograms on to the leather and bond with it. Remove the plastic film to obtain the finished product.

Description

technical field [0001] The invention relates to leather finishing, in particular to the finishing technology of leather surface. Background technique [0002] The processing and processing of genuine leather has always been highly valued by leather processors. The price of the processed leather is determined by its quality. The same batch of leather, because the quality of the processed leather is not as good as possible, so it is finally waited for. Separately, the price is also very different. The traditional leather treatment method is to first fill up the blemishes and holes on the skin, and then grind the skin. After the base coat is dried, the skin is dried and then the middle coat is applied. After the skin of the middle coat is dried, the top coat is applied. After the skin of the top coat is dried, the brightener is applied. This process has more than ten procedures, the working hours are long, it takes a lot of labor, and some solvents are sprayed many times in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14B1/56C14C11/00B05D7/12B32B27/06
Inventor 邹恒余
Owner 邹恒余
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