Chromaticity printing technique of in-mold label injection molding sheet material

A technology of color register printing and in-mold labeling, applied in printing process, printing, post-processing of printing, etc., can solve the problems of easy rubbing of ink on the surface of keys, low yield rate, etc., so as to improve the printing yield rate and reduce the number of printings. Effect

Active Publication Date: 2008-06-04
BYD PRECISION MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used is printing after laser engraving on the front. The disadvantage of this printing method is that the ink on the surface of the key is easily rubbed; there is also the use of in-mold label injection molding (IML: In Mold Label), and the text on the surface of the keyboard made by this printing method is not easy. At present, most of the keyboards made by this method use high-precision automatic printing machines to print out the forming positioning holes and printing positioning holes and the text on the keyboard on the sheet, and then overprint other colors after punching through the positioning holes. High-precision printing positioning is required, and the yield rate is low

Method used

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  • Chromaticity printing technique of in-mold label injection molding sheet material
  • Chromaticity printing technique of in-mold label injection molding sheet material
  • Chromaticity printing technique of in-mold label injection molding sheet material

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Embodiment Construction

[0028] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0029] This embodiment takes mobile phone keypad printing as an example to illustrate the overprint printing process of the present invention. The mobile phone keyboard is mainly produced by printing, molding, injection molding and trimming the formable sheet. In the production of mobile phone keyboards, the mobile phone keyboard is first printed, and then the printed sheet is put into the molding mold, and the sheet is formed into a keyboard shape by hot pressing, and then the formed keys are filled by injection molding. It can be made after trimming.

[0030] Printing of mobile phone keyboard: (1) Put the sheet on the printing table, print the background color of the keyboard, with symbols, characters or patterns in the background color, wherein the symbols, characters and patterns are each a hollow unit, and print There a...

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Abstract

The invention discloses an injection chromatic printing technique of a label in a mould, and the process is mainly to print a background color and a location hole simultaneously on a moldable sheet; the location hole is punched through by a digital controlling punching machine, then other colors are printed; after all ink is used out for printing, colorless adhesive or glossy oil is printed on a whole edition so as to prevent the ink from colliding when the injection is done; meanwhile, a level printing surface is formed, therefore any pressing trace can not appear on the surface of a keypad after the molding.

Description

【Technical field】 [0001] The invention relates to a color printing process of an in-mold label injection molded part. 【Background technique】 [0002] With the development of science and technology, there are many types of keyboards for electronic products, and the printing methods of keyboards are diversified. The most widely used is printing after laser engraving on the front. The disadvantage of this printing method is that the ink on the surface of the key is easily rubbed; there is also the use of in-mold label injection molding (IML: In Mold Label), and the text on the surface of the keyboard made by this printing method is not easy. At present, most of the keyboards made by this method use high-precision automatic printing machines to print out the forming positioning holes and printing positioning holes and the text on the keyboard on the sheet, and then overprint other colors after punching through the positioning holes. High-precision printing positioning is requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/14B41M3/00B41M7/00
Inventor 黄荣兆
Owner BYD PRECISION MFG
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