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Leather bronzing technique

A leather and process technology, applied in printing process, leather surface mechanical treatment, gold powder printing and other directions, can solve the problem of difficult gold powder coating hot stamping and other problems, achieve strong three-dimensional and glossy, and improve the effect of visual effects

Inactive Publication Date: 2009-11-04
杨洪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the gold powder coating is in powder form, it is difficult to hot stamp a large area of ​​gold powder coating onto leather printed matter with the current hot stamping process and ensure long-lasting adhesion and good visual effect
Therefore, there is no leather printed product hot stamped with gold powder paint on the market at present.

Method used

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  • Leather bronzing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Fix the female intaglio 1 and the male relief 2 on the high temperature hot stamping die-cutting machine, place the 0.3mm thick PU leather on the male relief 2, cover the PU with a layer of tinfoil 3, and then put The female intaglio 1 and the male relief 2 are mold-closed. After mold-closing, the hot stamping temperature is kept at 60° C., and the pressure is kept at 2 tons, so that the gold powder paint on the tin foil paper 3 is hot stamped onto the embossed surface to form a gold powder coating. The bronzing pattern with this process has a strong sense of three-dimensionality and gloss. After repeated rubbing tests, the gold powder coating does not fade and has strong adhesion.

Embodiment 2

[0021] Fix the female intaglio 1 and the male relief 2 on the high temperature hot stamping die-cutting machine, place the leather with a thickness of 1.2mm on the male relief 2, cover the leather with a layer of tinfoil 3, and then place the female The intaglio plate 1 and the male mold relief plate 2 are mold-closed. After mold-closing, the hot stamping temperature is kept at 200° C. and the pressure is kept at 20 tons, so that the gold powder coating on the tinfoil paper 3 is hot stamped onto the embossed surface to form a gold powder coating. The bronzing pattern with this process has a strong sense of three-dimensionality and gloss. After repeated rubbing tests, the gold powder coating does not fade and has strong adhesion.

Embodiment 3

[0023] Fix the female intaglio 1 and the male relief 2 on the high temperature hot stamping die-cutting machine, place the PU leather with a thickness of 0.8mm on the male relief 2, cover the PU with a layer of tinfoil 3, and then place the The female intaglio 1 and the male relief 2 are mold-closed. After mold-closing, the hot stamping temperature is kept at 130° C., and the pressure is kept at 10 tons, so that the gold powder coating on the foil paper 3 is hot-stamped onto the embossed surface to form a gold powder coating. The bronzing pattern with this process has a strong sense of three-dimensionality and gloss. After repeated rubbing tests, the gold powder coating does not fade and has strong adhesion.

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Abstract

The invention discloses a leather bronzing technique, which can thermally print gold powder coating on the leather surface, can ensure the lasting adhesion of the gold powder and further improve the third dimension of thermally printed patterns. The leather bronzing technique overprints embossing with convex and concave feelings on the leather via a template, before overprinting, silver paper coated with gold powder is paved on the leather, during overprinting, the gold powder on the silver paper is thermally printed onto the embossing surface by the template to form a gold powder coating. The technique combines bronzing and overprinting, overprints the patterns or decorative designs on the template onto the leather surface to form embossing with convex and concave feelings, and simultaneously thermally prints the gold powder coating on the silver paper onto the embossing surface under certain pressure and temperature, thus can transfer and print the gold powder coating onto the leather surface according to pictures and texts on the template and ensure lasting adhesion of the gold powder, meanwhile, the thermally printed patterns have great third dimension and lustre sensation, thus greatly improving the visual effect of leather products.

Description

technical field [0001] The invention relates to a process for hot stamping on leather. Background technique [0002] Thermal pad printing technology, also known as hot stamping, uses the template installed on the hot stamping machine to press the printed matter and hot stamping foil against each other in a short period of time under a certain pressure and temperature, and presses the metal foil or pigment foil according to the hot stamping template. It is a printing technology that transfers the graphic and text to the surface of the hot-printed matter. Gold powder coating can enhance the gloss and metallic feeling of printed matter, and it is widely used. At present, the use of gold powder hot stamping has become an important process to increase the visual effect and grade of labels, trademarks, cigarette packs, wine packs and various high-end packaging boxes, also known as hot stamping. [0003] Gold powder coating mainly adopts copper alloy gold powder or SnS 2 gold du...

Claims

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Application Information

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IPC IPC(8): C14B1/56B41M5/385B41M1/22B41M1/24B41G1/00B41F16/00B41F19/06C09D5/38
Inventor 杨洪
Owner 杨洪
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