CN113372019A - Film stripping and etching process of coated glass - Google Patents

Abstract

The invention provides a film removing and etching process of coated glass, which comprises the following steps: placing the coated glass in the film stripping liquid of claim 1 or 2, then carrying out ultrasonic treatment, taking out the glass after the film stripping is finished, and drying to obtain the glass. The film stripping process of the coated glass provided by the invention is matched with the film stripping liquid to completely dissolve the film, the glass substrate is not corroded, and the etching quality is improved.

Description

Film stripping and etching process of coated glass

Technical Field

The invention belongs to the field of glass processing, and particularly relates to a film stripping and etching process for coated glass.

Background

At present, the method for making glass with characters, patterns and figures is mainly an etching method, i.e. a method for etching and carving glass by using chemical etching agents. The etchant is hydrofluoric acid, and the etching method is to etch the glass to be etched; cleaning, air drying, and placing horizontally, coating paraffin liquid dissolved by gasoline as protective layer, and carving required characters or patterns on the cured paraffin layer. When carving, the paraffin layer must be carved through to expose the glass, then hydrofluoric acid is dropped on the characters or patterns of the exposed glass, according to the depth of the required pattern, after controlling the corrosion time for a certain time, the paraffin and hydrofluoric acid are washed away by warm water, and the glass with beautiful pattern can be prepared.

The etching method has the following defects: 1. in the etching process, the volatilization of gasoline and hydrofluoric acid causes environmental pollution, which causes serious environmental pollution; 2. during the etching process, a protective layer needs to be arranged on the glass, and the operation is complex.

Disclosure of Invention

In view of the above, the present invention provides a film removing etching process for coated glass, which aims to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the film removing liquid for coated glass is prepared from the following components in parts by weight:

preferably, the film stripping liquid is prepared from the following components in parts by weight:

a film removing process of coated glass comprises the following steps: and (3) placing the coated glass in the film stripping solution, then carrying out ultrasonic treatment, taking out the glass after the film stripping is finished, and drying the glass.

Furthermore, the temperature of the ultrasonic step is 28-35 ℃, the frequency is 60-100kHz, and the time is 1-3 hours.

The etching solution for the coated glass is prepared from the following components in parts by weight:

preferably, the etching solution is prepared from the following components in parts by weight:

the etching process of glass includes the following steps:

(1) cleaning the surface of the glass, and then carrying out back protection on the glass;

(2) dividing the etching solution into two equal parts, putting the glass into the first part of the etching solution, and taking out the glass after soaking;

(3) diluting the second part of etching solution ten times, then putting the glass into the second part of etching solution, etching, taking out the glass after etching is finished, and washing to obtain the glass.

Further, the time of the soaking step in the step (2) is 1-5 hours.

A glass handicraft article prepared by the etching process of the glass.

Compared with the prior art, the invention has the following advantages:

the film stripping process of the coated glass provided by the invention is matched with the film stripping liquid to completely dissolve the film, the glass substrate is not corroded, and the etching quality is improved.

According to the etching process of the coated glass, the etching solution is divided into two parts, the glass is pretreated and then etched, so that the etching is uniform, the granularity is large, the concentration is high, the light transmittance and the glossiness are good, the polishing is not needed, and the preparation process of the glass is simpler.

Detailed Description

Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.

The present invention will be described in detail with reference to examples.

Example 1

The film removing liquid for coated glass is prepared from the following components in parts by weight: 12 parts of hydrochloric acid, 18 parts of citric acid, 2 parts of potassium borohydride, 1 part of potassium carbonate and 5 parts of dimethyl sulfoxide.

A film removing process of coated glass comprises the following steps: and (3) placing the coated glass in the film stripping solution, then carrying out ultrasonic treatment at the temperature of 30 ℃ and the frequency of 80kHz for 2 hours, and taking out the glass after the film stripping is finished and drying the glass.

The etching solution for the coated glass is prepared from the following components in parts by weight: 22 parts of hydrofluoric acid, 1 part of ammonium fluoride, 5 parts of ammonium fluoroborate, 5 parts of potassium bifluoride, 0.8 part of sodium alginate, 2 parts of malonic acid and 1 part of acetic acid.

The etching process of glass includes the following steps:

(1) cleaning the surface of the glass, and then carrying out back protection on the glass;

(2) dividing the etching solution into two parts with the same quantity, putting the glass into the first part of the etching solution, soaking for 2h, and taking out the glass;

(3) diluting the second part of etching solution ten times, then putting the glass into the second part of etching solution, etching, taking out the glass after etching is finished, and washing to obtain the glass.

Example 2

The film removing liquid for coated glass is prepared from the following components in parts by weight: 25 parts of hydrochloric acid, 12 parts of citric acid, 2 parts of potassium borohydride, 0.5 part of potassium carbonate and 2 parts of dimethyl sulfoxide.

A film removing process of coated glass comprises the following steps: and (3) placing the coated glass in the film stripping solution, then carrying out ultrasonic treatment at the temperature of 30 ℃ and the frequency of 80kHz for 2 hours, and taking out the glass after the film stripping is finished and drying the glass.

The etching solution for the coated glass is prepared from the following components in parts by weight: 28 parts of hydrofluoric acid, 5 parts of ammonium fluoride, 2 parts of ammonium fluoroborate, 2 parts of potassium bifluoride, 0.8 part of sodium alginate, 2 parts of malonic acid and 3 parts of acetic acid.

The etching process of glass includes the following steps:

(1) cleaning the surface of the glass, and then carrying out back protection on the glass;

(2) dividing the etching solution into two parts with the same quantity, putting the glass into the first part of the etching solution, soaking for 2h, and taking out the glass;

(3) diluting the second part of etching solution ten times, then putting the glass into the second part of etching solution, etching, taking out the glass after etching is finished, and washing to obtain the glass.

Comparative example 1

The same as example 1 was used for a film removing solution for coated glass.

The same film stripping process as in example 1 was used for coated glass.

An etching solution for coated glass, the same as in example 1.

The etching process of glass includes the following steps:

(1) cleaning the surface of the glass, and then carrying out back protection on the glass;

(2) and (3) putting the glass into an etching solution, soaking for 2h, then etching, taking out the glass after etching is finished, and washing to obtain the glass.

Comparative example 2

A film stripping liquid for coated glass adopts hydrochloric acid.

The same film stripping process as in example 1 was used for coated glass.

An etching solution for coated glass, the same as in example 1.

The same etching process as in example 1 was performed.

Comparative example 3

The same as example 1 was used for a film removing solution for coated glass.

The same film stripping process as in example 1 was used for coated glass.

An etching solution for coated glass, which adopts hydrofluoric acid.

The same etching process as in example 1 was performed.

The glass intermediates obtained in examples 1 to 2 and comparative example 2 after film removal were examined, and the results are shown in table 1.

TABLE 1 film removal data

	Film removal time (t/min)	Surface roughness (Ra/. mu.m)
			Example 1	112±6	2.82±0.31
Example 2	97±5	4.47±0.43
			Example 3	230±13	7.01±0.82

The glass products after etching obtained in examples 1 to 2 and comparative examples 1 and 3 were examined, and the results are shown in Table 2.

TABLE 2 etching data

As can be seen from tables 1-2, the film stripping solution and the etching solution of the invention have significant effect on glass products, improve the quality of the glass products, and have certain effect on the products by the film stripping process and the etching process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The film stripping liquid for coated glass is characterized by comprising the following steps: the film stripping liquid is prepared from the following components in parts by weight:

2. the coated glass stripping solution according to claim 1, characterized in that: the film stripping liquid is prepared from the following components in parts by weight:

3. a film removing process of coated glass is characterized in that: the method comprises the following steps: placing the coated glass in the film stripping solution of claim 1 or 2, then carrying out ultrasonic treatment, taking out the glass after the film stripping is finished, and drying to obtain the glass.

4. The film removing process for coated glass according to claim 3, wherein: the temperature of the ultrasonic step is 28-35 ℃, the frequency is 60-100kHz, and the time is 1-3 hours.

5. The etching solution for coated glass is characterized in that: the etching solution is prepared from the following components in parts by weight:

6. the method for preparing an etching solution for coated glass according to claim 5, wherein: the etching solution is prepared from the following components in parts by weight:

7. the etching process of the glass is characterized in that: the method comprises the following steps:

(1) cleaning the surface of the glass, and then carrying out back protection on the glass;

(2) dividing the etching solution of claim 6 or 7 into two equal parts, putting the glass into the first part of the etching solution, and taking out the glass after soaking;

(3) diluting the second part of etching solution ten times, then putting the glass into the second part of etching solution, etching, taking out the glass after etching is finished, and washing to obtain the glass.

8. The process for etching glass according to claim 7, wherein: the time of the soaking step in the step (2) is 1-5 hours.

9. A glass artwork made by the process of etching the glass of claim 7 or 8.