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Blackening liquid, manufacturing method thereof and application method thereof

A blackening liquid and blackening technology, applied in the field of blackening liquid, can solve the problems of further improvement of blackening effect, high blackening temperature, and long blackening time, and achieve stable blackening effect, uniform blackening, copper The complete effect of grid lines

Active Publication Date: 2020-10-09
GUANGDONG SKYCHEM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the blackening temperature of the blackening potion of this invention is 50-80 ℃, and the blackening time is 5-20min, so its blackening temperature is high, the blackening time is long, and the blackening effect needs to be further improved

Method used

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  • Blackening liquid, manufacturing method thereof and application method thereof
  • Blackening liquid, manufacturing method thereof and application method thereof
  • Blackening liquid, manufacturing method thereof and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]A kind of blackening solution of the present embodiment uses water as a solvent and contains the following components in mass concentration:

[0036]

[0037] The preparation method of the blackening liquid of the present embodiment comprises the steps:

[0038] 1) dissolving selenium dioxide in water according to the proportioning ratio;

[0039] 2) Add polyethylene glycol, phosphoric acid and sodium tripolyphosphate to the mixed liquid obtained in step 1) according to the proportioning ratio, and mix the mixed liquid. After adding the buffer agent, the pH is 2.5, and dilute with water to obtain the blackened liquid.

Embodiment 2

[0041] A kind of blackening solution of the present embodiment uses water as a solvent and contains the following components in mass concentration:

[0042]

[0043] The preparation method of the blackening liquid of the present embodiment comprises the steps:

[0044] 1) dissolving selenium dioxide in water according to the proportioning ratio;

[0045] 2) Add polyethylene glycol, phosphoric acid and sodium tripolyphosphate to the mixed liquid obtained in step 1) according to the proportioning ratio, and mix the mixed liquid. After adding the buffer agent, the pH is 2.5, and dilute with water to obtain the blackened liquid.

Embodiment 3

[0047] A kind of blackening solution of the present embodiment uses water as a solvent and contains the following components in mass concentration:

[0048]

[0049] The preparation method of the blackening liquid of the present embodiment comprises the steps:

[0050] 1) dissolving selenium dioxide in water according to the proportioning ratio;

[0051] 2) Add polyethylene glycol, phosphoric acid and sodium tripolyphosphate to the mixed liquid obtained in step 1) according to the proportioning ratio, and mix the mixed liquid. After adding the buffer agent, the pH is 2.5, and dilute with water to obtain the blackened liquid.

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Abstract

The invention discloses blackening liquid, a manufacturing method of the blackening liquid and an application method of the blackening liquid. The blackening liquid uses water as a solvent, and comprises, by mass concentration, 0.1g / L-5g / L of selenium dioxide, 0.1g / L-5g / L of dispersing agents and 0.1g / L-10g / L of buffering agents. The blackening liquid can have a good blackening effect, the reflectivity and the brightness of copper are obviously reduced, the visual effect is unobvious, the shadow elimination effect is achieved, the copper surface is evenly blackened, copper mesh lines are complete, the electrical conductivity of copper is not affected, and the good blackening effect stability is formed. The manufacturing method of the blackening liquid is simple, the application temperatureis close to the normal temperature, the operation is convenient, the blackening method is simple, the cost is low, and the blackening effect is stable.

Description

technical field [0001] The invention belongs to the technical field of blackening liquid and relates to a blackening liquid and a preparation method and a use method thereof, in particular to a blackening liquid suitable for bright copper film or copper grid touch screens and a preparation method and a use method thereof. Background technique [0002] Copper is a metal material with good conductivity and low cost. It is the most important conductive substance on circuit boards, display screens and other devices. In some special applications, it is necessary to form an extremely thin copper film on the substrate by means of spraying, evaporation or vacuum sputtering. However, the copper films formed by these processes usually have high metallic luster visibility and strong reflectivity, and are easily detected by the naked eye when they are made into circuits, which affects the visual effect of users. At the same time, the line width of the copper grid on the touch screen is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/52
CPCC23C22/52
Inventor 邵永存明东远李晓红章晓冬刘江波童茂军
Owner GUANGDONG SKYCHEM TECH LTD
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