Printing ink and phone press key coating method using the same

An ink and button technology, applied in the field of ink and mobile phone button coating using the ink, can solve the problems of pattern fading and wear, and achieve the effects of not easy to fade and wear, simplifying the production process, and shortening the cycle.

Inactive Publication Date: 2009-01-28
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of existing inks that are prone to fading and abrasion after printing, and provide an ink that is not prone to fading and abrasion after printing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This example is used to illustrate the method provided by the present invention.

[0033] 1. Preparation of ink containing main material, filler, pigment, wax, diluent and curing agent

[0034] With the polyester resin (SK company, ES300) of 20 weight parts, the polypropylene resin (Guangzhou Xiangfu Trading Co., Ltd., PP-16LP) of 20 weight parts, the paraffin wax (SHAMROCK company, S483) of 2 weight parts, 10 weight % Pigment (Clariant, 1533), 33 parts by weight of silicon dioxide (Degussa, AEROSIL300) and 10 parts by weight of toluene are mixed evenly, and then add 5 parts by weight of diphenylmethane-4,4'- Diisocyanate (Mitsui Corporation, Japan, MDI) was mixed evenly to obtain ink D1 containing a host material, a filler, a pigment, a wax, a diluent and a curing agent.

[0035] 2. Coating of mobile phone buttons

[0036]In the dust-free workshop, 100 silicone rubber mobile phone buttons (37.08 mm × 44.69 mm × 3.75 mm) are cleaned. After washing away the surface dir...

Embodiment 2

[0038] This example is used to illustrate the method provided by the present invention.

[0039] 1. Preparation of ink containing main material, filler, pigment, wax, diluent and curing agent

[0040] With 35 parts by weight of polyester resin (SK company, ES300), 25 parts by weight of polypropylene resin (Guangzhou Xiangfu Trading Co., Ltd., PP-16LP), 2 parts by weight of polyethylene wax (Xianghe company, XH-200 ), 10 parts by weight of pigment (Clariant, 1533), 15 parts by weight of calcium carbonate (Guangdong Senxin Industry and Trade Co., Ltd.) and 8 parts by weight of ethyl acetate are mixed uniformly, then add 5 parts by weight of toluene diisocyanate (Bayer Corporation, TDI-100) were mixed evenly to obtain ink D2 containing host material, filler, pigment, wax, diluent and curing agent.

[0041] 2. Coating of mobile phone buttons

[0042] In the dust-free workshop, 100 silicone rubber mobile phone buttons (37.08 mm × 44.69 mm × 3.75 mm) are cleaned. After washing awa...

Embodiment 3

[0044] This example is used to illustrate the method provided by the present invention.

[0045] 1. Preparation of ink containing main material, filler, pigment, wax, diluent and curing agent

[0046] With the polyester resin of 40 weight parts (SK company, ES300), the paraffin wax (SHAMROCK company, S483) of 5 weight parts, the pigment of 15 weight % (Clariant company, 1533), the talcum powder of 20 weight parts (Guangdong Senxin Industry and Trade Co., Ltd.) and 10 parts by weight of isopropanol are mixed homogeneously, then add 10 parts by weight of polyphenylpolymethyl polyisocyanate (Bayer Company, PAPI) and mix homogeneously to obtain a mixture containing main material, filler, pigment, Ink D3 for wax, thinner and hardener.

[0047] 2. Coating of mobile phone buttons

[0048] In the dust-free workshop, 100 silicone rubber mobile phone buttons (37.08 mm × 44.69 mm × 3.75 mm) are cleaned. After washing away the surface dirt, they are dried and fixed on the spraying fixtu...

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Abstract

The invention provides a sort of ink which consists of main material, stuffing, pigment, wax, thinner, and curing agent; the overall weight of the ink is set as a standard; the content of the main material is 30-70 weight percent; the content of the stuffing is 10-40 weight percent; the content of the pigment is 5-25 weight percent; the content of the wax is 1-10 weight percent; the content of the thinner is 5-15 weight percent; the content of the curing agent is 5-15 weight percent. The invention also provides a method for coating a cell-phone keypad, which consists of the steps of: understratum spraying on the surface of the cell-phone keypad, surface spraying on the surface of the cell-phone keypad after the understratum spraying, printing on the surface of the cell-phone keypad after the surface spraying; the ink used in the printing is supplied by the invention. The ink supplied by the invention can not be easy to fade or wear; meanwhile, with the coating method of the ink, the yield rate of the product can be greatly improved.

Description

technical field [0001] The invention relates to an ink and a method for coating mobile phone buttons using the ink. Background technique [0002] The mobile phone button is a part on the mobile phone for function control operation. In the coating method of existing mobile phone keys, usually by printing on the bottom paint, that is, firstly spray the bottom layer on the mobile phone keys, then unload the mobile phone keys covered with the primer from the spraying equipment, and transfer them to the printing equipment Print on the printing machine, and then unload the printed mobile phone keys from the printing equipment, and then transfer to the spraying equipment for surface coating. [0003] The specific process is as follows: [0004] Spraying of the bottom layer→transfer of the next part to the printing workshop→printing→transfer of the next part to the spraying workshop→upper part→surface coating. [0005] Among them, the bottom spraying is to make the mobile phone k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10H04M1/02C09D11/30
Inventor 牟靖文张志飞
Owner BYD CO LTD
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