Etching solution for touch screen and preparation method thereof
An etching solution and touch screen technology, applied in the field of etching solution, can solve the problems of difficulty in controlling the etching angle and metal layer etching amount, unstable etching solution, and large side etching amount, etc., and achieve stable etching, moderate etching speed, and electrode pattern edge. neat effect
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Embodiment 1
[0046] A kind of etching liquid for touch screen, every liter of etching liquid is made up of following raw material:
[0047] Hydrochloric acid 180mL
[0048] Sodium dihydrogen phosphate 5g
[0049] Hydrofluoric acid 70 mL
[0050] Hydrogen peroxide 40mL
[0051] Cetylpyridinium chloride 0.1 mL
[0052] 4-methyl-5-(2-acetoxyethyl)thiazole 3mL
[0053] The balance is water.
[0054] The mass percent concentration of the hydrochloric acid is 38%, the mass percent concentration of the hydrofluoric acid is 36%, and the mass percent concentration of the hydrogen peroxide is 30%.
[0055] A preparation method of etching liquid for touch screen, it comprises the following preparation steps:
[0056] A. Dissolve the sodium dihydrogen phosphate in the formula amount in pure water to obtain an aqueous solution of sodium dihydrogen phosphate for subsequent use;
[0057] B. Stir hydrochloric acid, hydrofluoric acid, hydrogen peroxide, cetylpyridinium chloride, 4-methyl-5-(2-acetox...
Embodiment 2
[0061] A kind of etching liquid for touch screen, every liter of etching liquid is made up of following raw material:
[0062] Hydrochloric acid 200 mL
[0063] Sodium dihydrogen phosphate 10g
[0064] Hydrofluoric acid 80 mL
[0065] Hydrogen peroxide 45mL
[0066] Cetylpyridinium Chloride 0.5mL
[0067] 4-methyl-5-(2-acetoxyethyl)thiazole 5mL
[0068] The balance is water.
[0069] The mass percent concentration of the hydrochloric acid is 38%, the mass percent concentration of the hydrofluoric acid is 36%, and the mass percent concentration of the hydrogen peroxide is 30%.
[0070] A preparation method of etching liquid for touch screen, it comprises the following preparation steps:
[0071] A. Dissolve the sodium dihydrogen phosphate in the formula amount in pure water to obtain an aqueous solution of sodium dihydrogen phosphate for subsequent use;
[0072] B. Stir hydrochloric acid, hydrofluoric acid, hydrogen peroxide, cetylpyridinium chloride, 4-methyl-5-(2-aceto...
Embodiment 3
[0075] A kind of etching liquid for touch screen, every liter of etching liquid is made up of following raw material:
[0076] Hydrochloric acid 190mL
[0077] Sodium dihydrogen phosphate 14g
[0078] Hydrofluoric acid 82 mL
[0079] Hydrogen peroxide 46mL
[0080] Cetylpyridinium chloride 0.8 mL
[0081] 4-methyl-5-(2-acetoxyethyl)thiazole 6mL
[0082] The balance is water.
[0083] The mass percent concentration of the hydrochloric acid is 38%, the mass percent concentration of the hydrofluoric acid is 36%, and the mass percent concentration of the hydrogen peroxide is 30%.
[0084] A preparation method of etching liquid for touch screen, it comprises the following preparation steps:
[0085] A. Dissolve the sodium dihydrogen phosphate in the formula amount in pure water to obtain an aqueous solution of sodium dihydrogen phosphate for subsequent use;
[0086] B. Stir hydrochloric acid, hydrofluoric acid, hydrogen peroxide, cetylpyridinium chloride, 4-methyl-5-(2-acetoxy...
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