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Single component silk-screen insulating ink for cupronickel shielding cover insulating film of electronic product

A technology of electronic products and insulating ink, which is applied in the field of one-component screen printing insulating ink, can solve the problems of low construction efficiency, achieve the effects of improving construction efficiency, improving stamping processability, and excellent impact resistance

Inactive Publication Date: 2019-10-25
深圳市科美达迈斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-component screen printing insulating ink for the insulating film of the white copper shielding cover of electronic products, aiming to solve the problem of low construction efficiency in the prior art that the white copper shielding cover achieves insulation

Method used

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  • Single component silk-screen insulating ink for cupronickel shielding cover insulating film of electronic product
  • Single component silk-screen insulating ink for cupronickel shielding cover insulating film of electronic product
  • Single component silk-screen insulating ink for cupronickel shielding cover insulating film of electronic product

Examples

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Effect test

preparation example Construction

[0038] A preparation method of a single-component screen printing insulating ink used for the insulating film of the white copper shielding cover of electronic products includes the following steps:

[0039] (1) Add the silicone-modified saturated polyester resin and add anti-settling agent at a stirring speed of 800-1000 rpm, then increase the speed to 1600-1800 rpm, and stir for 20-40 minutes until dispersed Evenly, after cooling to room temperature, use a three-roll machine to grind to a fineness of ≤10um to obtain a semi-finished product;

[0040] (2) Add insulating complex dyes, amino resins, sealing curing agents, adhesion agents, leveling agents, and defoaming agents to the semi-finished products, and then mix them evenly, at a stirring speed of 800-1000 rpm, stirring for 5-15 minute;

[0041] (3) Add DBE environmentally friendly solvent, control the stirring speed to 800-1000 rpm, stir for 5-15 minutes, adjust the viscosity to 5000-8000mpa.s / 25℃, mix well and filter with a f...

Embodiment 1

[0042] Example 1 (Take the manufacture of 100KG a single-component insulating screen printing ink used for the printing of white copper shields of electronic products as an example):

[0043] (1) Add 60KG of organic silicon modified saturated polyester resin into the mixing tank, add 3KG of fumed silica at a speed of 800 rpm, then increase the speed to 1600 rpm, and stir for 50 minutes to Disperse uniformly, after cooling to room temperature, grind on a three-roller machine to a fineness of ≤10um to obtain semi-finished products;

[0044] (2) Add 10 kg of insulating golden complex dye, 5 kg of methyl etherified amino resin, 5 kg of sealing curing agent, 3 kg of phosphate adhesive, 2 kg of silicone leveling agent, and 2 kg of silicone defoamer to the semi-finished product , Mix evenly, the stirring speed is 800 rpm, stirring for 15 minutes;

[0045] (3) Add 10KG of DBE environmentally friendly solvent, control the stirring speed to 800 rpm, stir for 15 minutes, adjust the viscosity t...

Embodiment 2

[0046] Example 2 (to make 100KG a single-component insulating black screen printing ink for the white copper shielding cover of electronic products):

[0047] (1) Add 70KG of organic silicon-modified saturated polyester resin into the mixing tank, add 1KG of fumed silica at a stirring speed of 900 rpm, then increase the speed to 1700 rpm, and stir for 40 minutes to Disperse uniformly, after cooling to room temperature, grind on a three-roller machine to a fineness of ≤10um to obtain semi-finished products;

[0048] (2) Add 6KG of insulating black complex dye and 10KG of methyl etherified amino resin, 4 kg of sealing curing agent, 1.5KG of phosphate adhesive, 1.5KG of silicone leveling agent, and silicone defoamer into the semi-finished product 1KG, mix evenly, the stirring speed is 900 rpm, stirring for 10 minutes;

[0049] (3) Add 5KG of DBE environmentally friendly solvent, control the stirring speed to 900 rpm, stir for 10 minutes, adjust the viscosity to 5000~8000mpa.s, mix well...

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Abstract

The invention relates to the technical field of insulating ink, and discloses single component silk-screen insulating ink for a cupronickel shielding cover insulating film of an electronic product. The single component silk-screen insulating ink is prepared from the components in percentage by content: 60%-70% of organic silicone modified saturated polyester resin; 5%-10% of amino resin; 3%-5% ofa sealing curing agent; 5%-10% of an insulating complex dye; 1%-3% of an anti-settling agent; 5%-10% of a DBE environmentally friendly solvent; 1%-3% of an adhesion agent; 1%-2% of a flatting agent; and 1%-2% of an antifoaming agent. The organic silicone modified saturated polyester resin matched with the amino resin is adopted to improve hardness and chemical resistance after a film is cured, thesealing curing agent is matched to accelerate reactivity of the organic silicone resin, the insulating complex dye is matched to improve tinting strength, the anti-settling agent is matched to facilitate stability of the product quality, the flatting agent is matched to improve surface uniformity and flatness, and the antifoaming agent and the DBE low toxic environmentally friendly solvent are matched to prevent foaming. In this way, the insulating ink is adopted to replace a PTFE insulating film, and the construction efficiency of a cupronickel shielding cover is greatly improved.

Description

Technical field [0001] The patent of the invention relates to the technical field of insulating inks, in particular to a single-component screen printing insulating ink used for the insulating film of the white copper shield cover of electronic products. Background technique [0002] Electronic product components such as mobile phones, GPS, etc. will generate electromagnetic waves when they are working. It is necessary to prevent electromagnetic interference (EMI) and shield the components on the PCB board and the LCM. Because the component shield is made of cupronickel, In order to prevent the white copper from contacting the original and causing a short circuit, the inner surface of the shielding case needs to be insulated. [0003] At present, a layer of PTFE film insulation is attached to the surface of the shielding case to achieve signal shielding between components and PCB boards and other components to prevent mutual interference and avoid signal transmission problems. It h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/104C09D11/103C09D11/102C09D11/03C09D11/033
CPCC09D11/03C09D11/033C09D11/102C09D11/103C09D11/104
Inventor 文树球
Owner 深圳市科美达迈斯科技有限公司
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