CN109082274A

CN109082274A - Etching solution and the obtained method without the remaining cell phone rear cover of fingerprint of the utilization etching solution

Info

Publication number: CN109082274A
Application number: CN201810996085.1A
Authority: CN
Inventors: 贡浩飞; 潘华平
Original assignee: Jiangsu Gold Amber Optical Polytron Technologies Inc
Current assignee: Jiangsu Gold Amber Optical Polytron Technologies Inc
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2018-12-25

Abstract

The method without the remaining cell phone rear cover of fingerprint is made the present invention relates to a kind of etching solution and using the etching solution, the etching solution includes the barium sulfate of weight ratio 10-15%, the carboxymethyl cellulose of 2-7%, the guar gum of 1-3%, the ammonium fluoride of 15-30%, the sodium chloride of 10-20% and the solvent of surplus.The solvent is hydrochloric acid, one or more mixing of sulfuric acid or phosphoric acid.First the cell phone rear cover back side is covered and toasted by acid-proof ink, glass is cleaned up by cleaning machine, then etching solution described in claim 1 is uniformly sprayed at cell phone rear cover surface rapidly, the reaction time about 30 seconds, is cleaned by over cleaning machine and obtain frosted cell phone rear cover after deinking.The present invention can either make glass cell phone rear cover form frosted finish effect, and not latent prints, can be widely applied to frosted cell phone rear cover, the occasions such as laptop keyboard plate.

Description

Etching solution and the obtained method without the remaining cell phone rear cover of fingerprint of the utilization etching solution

Technical field

The method without the remaining cell phone rear cover of fingerprint is made the present invention relates to a kind of etching solution and using the etching solution.

Background technique

Etching is the technology by materials'use chemical reaction or physical shock effect and removal；Etching technique is divided into wet etching And dry ecthing.Wherein, wet etching is to achieve the purpose that etching via chemical reaction using chemical reagent.

In recent years, while people are continuously increased the demand of liquid crystal display, to the quality and picture precision of product Higher requirements are also raised, and the effect etched can directly result in the quality of circuit board manufacturing process, influence high density and carefully lead The precision and quality of line image.Aluminum or aluminum alloy has been used in the metal wiring of previous liquid crystal display device, but with liquid The enlargement and high resolution of crystal display, the grid line and data line connecting with thin film transistor (TFT) can be elongated, these are matched The resistance of line also will increase, therefore the problems such as generation signal delay.So research steering in the lower material, that is, copper of resistance or with Copper is the wiring combination of principal component.Molybdenum have with the adaptation of the substrates such as glass it is high, be difficult to generate the expansion to silicon semiconductor film It dissipates and has both block；Therefore, the film forming such as sputtering method will be passed through comprising copper, by the stacked film of the copper molybdenum alloy of principal component of copper Technique forms a film on the substrates such as glass, then by resist etc. to be become to electricity as the etching work procedure that exposure mask is etched Pole figure case.

With the development of social science and technology, mobile phone becomes more and more important in we live.The birth of smart phone, greatly Ground facilitates our life, but makes a general survey of all mobile phones currently on the market, and all there is cell phone rear covers when use to go out The phenomenon that existing fingerprint.

Summary of the invention

The method without the remaining cell phone rear cover of fingerprint, energy is made the invention proposes a kind of etching solution and using the etching solution Frosted cell phone rear cover is enough formed, not latent prints, while there is good surface abrasion resistance energy again.The invention proposes one kind Etching solution, the etching formula of liquid is as follows, by the barium sulfate of weight ratio 10-15%, the carboxymethyl cellulose of 2-7%, the Guar of 1-3% Glue, the ammonium fluoride of 15-30%, 10-20% sodium chloride weighing after pour into plastic containers, by a certain proportion of hydrochloric acid, sulfuric acid or One or more mixed acid of phosphoric acid pour into appeal plastic containers and stir, and can be obtained after mixing evenly.

A method of it is made using the etching solution without the remaining cell phone rear cover of fingerprint, comprising: first by glass cell phone rear cover The back side cover and toasts by acid-proof ink, then glass cell phone rear cover is cleaned up by cleaning machine, then will be weighed rapidly Benefit require 1 described in etching solution be uniformly sprayed at the surface of glass cell phone rear cover, it is the reaction time about 30 seconds, clear by over cleaning machine It washes and obtains the remaining ground glass cell phone rear cover of no fingerprint after deinking.

Through the above technical solutions, beneficial effects of the present invention: being capable of forming ground glass cell phone rear cover, and do not remain Fingerprint, abrasion resistance properties are good, can be used for a long time and not fall off；Its etching solution price is lower, and etching process is easier to control, raw It is high to produce yield, stable product quality.

Specific embodiment

Embodiment 1

Following component is uniformly mixed, the barium sulfate of weight ratio 12%, 3% carboxymethyl cellulose, 2% guar gum, 22% fluorine Change ammonium, pours into plastic containers after 14% sodium chloride weighing, 47% 98% concentrated sulfuric acid is poured into appeal plastic containers and is stirred, is stirred Required etching solution can be obtained after mixing uniformly.It is a kind of that the side without the remaining cell phone rear cover of fingerprint being made using the etching solution Method, comprising: first the cell phone rear cover back side is covered and toasted by acid-proof ink, glass is cleaned up by cleaning machine, then fast The etching solution of the above-mentioned no remaining ground glass cell phone rear cover of fingerprint is uniformly sprayed at cell phone rear cover surface by speed, and the reaction time is about It 30 seconds, is cleaned by over cleaning machine and obtains frosted cell phone rear cover after deinking.Its optical characteristics is transmittance haze 68%, glossiness (when incident angle is 60 degree) is 15, and the fresh degree of reflecting of image (DOI) is 17, and MIcrosope image is shown, glass, which generates, to rise and fall not Flat surface, feature sizes are 25 microns, and surface arithmetic mean roughness (Ra) is 0.61 micron.

Embodiment 2

Following component is uniformly mixed, the barium sulfate of weight ratio 15%, 3% carboxymethyl cellulose, 1% guar gum, 17% fluorine Change ammonium, pours into plastic containers after 20% sodium chloride weighing, 39% 85% phosphoric acid is poured into appeal plastic containers and is stirred, is stirred Required etching solution can be obtained after uniformly.It is a kind of that the side without the remaining cell phone rear cover of fingerprint being made using the etching solution Method, comprising: first the cell phone rear cover back side is covered and toasted by acid-proof ink, glass is cleaned up by cleaning machine, then fast The etching solution of the above-mentioned no remaining ground glass cell phone rear cover of fingerprint is uniformly sprayed at cell phone rear cover surface by speed, and the reaction time is about It 30 seconds, is cleaned by over cleaning machine and obtains frosted cell phone rear cover after deinking.Its optical characteristics is transmittance haze 81%, glossiness (when incident angle is 60 degree) is 11, and the fresh degree of reflecting of image (DOI) is 15, and MIcrosope image is shown, glass, which generates, to rise and fall not Flat surface, feature sizes are 29 microns, and surface arithmetic mean roughness (Ra) is 0.73 micron.

Embodiment 3

Following component is uniformly mixed, the barium sulfate of weight ratio 10%, 6% carboxymethyl cellulose, 3% guar gum, 27% fluorine Change ammonium, pours into plastic containers after 12% sodium chloride weighing, 42% 85% phosphoric acid is poured into appeal plastic containers and is stirred, is stirred Required etching solution can be obtained after uniformly.It is a kind of that the side without the remaining cell phone rear cover of fingerprint being made using the etching solution Method, comprising: first the cell phone rear cover back side is covered and toasted by acid-proof ink, glass is cleaned up by cleaning machine, then fast The etching solution of the above-mentioned no remaining ground glass cell phone rear cover of fingerprint is uniformly sprayed at cell phone rear cover surface by speed, and the reaction time is about It 30 seconds, is cleaned by over cleaning machine and obtains frosted cell phone rear cover after deinking.Its optical characteristics is transmittance haze 81%, glossiness (when incident angle is 60 degree) is 13, and the fresh degree of reflecting of image (DOI) is 12, and MIcrosope image is shown, glass, which generates, to rise and fall not Flat surface, feature sizes are 33 microns, and surface arithmetic mean roughness (Ra) is 0.67 micron.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of etching solution, it is characterised in that: include the barium sulfate of weight ratio 10-15%, the carboxymethyl cellulose of 2-7%, 1- 3% guar gum, the ammonium fluoride of 15-30%, the sodium chloride of 10-20% and the solvent of surplus.

2. etching solution according to claim 1, it is characterised in that: the solvent is one kind of hydrochloric acid, sulfuric acid or phosphoric acid Or a variety of mixing.

3. a kind of be made the method without the remaining cell phone rear cover of fingerprint using etching solution described in claim 1, feature exists In: include the following steps, first the back side of glass cell phone rear cover is covered and toasted by acid-proof ink, then glass cell phone rear cover It is cleaned up by cleaning machine, then etching solution described in claim 1 is uniformly sprayed to rapidly the table of glass cell phone rear cover Face the reaction time about 30 seconds, is cleaned by over cleaning machine and obtains the remaining ground glass cell phone rear cover of no fingerprint after deinking.