CN113773116A

CN113773116A - Production process for printing on ceramic product and printed ceramic product

Info

Publication number: CN113773116A
Application number: CN202010533606.7A
Authority: CN
Inventors: 许斌; 张丹
Original assignee: Tangshan Kun Kiln Ceramics Co ltd
Current assignee: Tangshan Kun Kiln Ceramics Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-12-10

Abstract

The invention discloses a production process for printing on a ceramic product and the printed ceramic product. The production process comprises the following steps: a. mixing the semitransparent matting powder and the printing varnish according to the mass ratio of 5: 3, and grinding for at least 3 times by using a grinder to form a paste mixture A; b. mixing the semitransparent relief powder, the relief cooling agent and the printing varnish according to the mass ratio of 5: 6, and grinding into a paste mixture B by a grinder; c. printing the paste mixture A on the special stained paper for ceramics by using a silk screen, and airing; d. covering and printing the paste mixture B on the paste mixture A by using a silk screen, completely covering the paste mixture A by the paste mixture B, and then airing; e. covering the pasty mixture B with special ceramic surface oil, and then airing; f. soaking the special stained paper for the ceramic, transferring the pattern to the surface of the glazed ceramic body after the pattern formed by the pasty mixture A and the pasty mixture B is separated from the special stained paper for the ceramic, and airing; g. and putting the ceramic body into a kiln for firing. The glazed porcelain product manufactured by the production process has the visual effect of unglazed printing.

Description

Production process for printing on ceramic product and printed ceramic product

Technical Field

The invention relates to a production process of a ceramic product and the ceramic product, in particular to a production process of printing on the ceramic product and the ceramic product produced by the production process.

Background

The ceramic is a popular material for containers and artworks, and has the advantages of beautiful appearance, corrosion resistance, high temperature resistance, high hardness and the like. In order to increase the mechanical strength, thermal stability, dielectric strength and liquid corrosion resistance of the ceramic vessel, the inner and outer surfaces of the ceramic vessel, which are generally used daily, are subjected to glazing treatment. The surface of the ceramic product after glazing is smoother, and the glossiness is obviously improved.

In some designs, designers need to design containers such as cups and trays with partial glazing, and the contrast between glazed and unglazed portions forms patterns, so as to achieve the visual effect of making the porcelain more beautiful and changeable. At present, the common method for porcelain needing partial glazing is that a porcelain body is placed in a kiln at about 1230 ℃ to be fired, glazing is carried out after firing is finished, and in order to express the surface pattern of the porcelain, the part which is not glazed is wiped off by sponge or soft cloth. Alternatively, the glazing is carried out by masking the portion that does not need to be glazed. After glazing, placing the porcelain body in a kiln at about 1130 ℃ for glaze firing, and finishing the manufacturing. The process has the defects that on one hand, the part which is not glazed is easy to seep water and seep dirt, is easy to leave scratches and is difficult to clean, and on the other hand, in the glazing process, because the glaze is water-soluble, the glaze is easy to fall off easily after being dried by slight rubbing, and is not beneficial to performing fine treatment to express fine patterns, the production difficulty is improved, and the yield is low, so that the design of local glazing does not open the door of the market under the condition that the porcelain is more beautiful.

Disclosure of Invention

Based on the background, the invention discloses a production process for printing on ceramic products and printed ceramic products produced by the production process. The printed part of the porcelain product manufactured by the production process is 'pseudo-unglazed', namely the printed part has the unglazed visual effect, and meanwhile, the printed part has the advantages of difficult water seepage and dirt seepage, difficult scratch leaving, easy cleaning and the like of the glazed porcelain product, thereby solving the technical problem that the unglazed part cannot have the same difficult water seepage and dirt seepage and difficult scratch as the glazed part to express the patterns of the porcelain in the prior art.

The invention discloses a production process for printing on a ceramic product, which comprises the following steps:

a. mixing the semitransparent matting powder (1) and the printing varnish (2) according to the mass ratio of 5: 3, and grinding for at least 3 times by using a grinder to form a paste mixture A (3);

b. mixing the semitransparent embossment powder (4), the embossment cooling agent (5) and the printing varnish (2) according to the mass ratio of 5: 6, and grinding into a paste mixture B (6) by a grinder;

c. printing the paste mixture A (3) on special stained paper for ceramics by using a silk screen under the conditions that the ambient temperature is 25-26 ℃ and the humidity is 50-60%, and airing;

d. under the conditions that the ambient temperature is 25-26 ℃ and the humidity is 50-60%, covering and printing the paste mixture B (6) on the paste mixture A (3) by using a silk screen, completely covering the paste mixture A (3) by using the paste mixture B (6), and then airing;

e. covering the pasty mixture B (6) with special ceramic surface oil (7), and then airing;

f. soaking the special stained paper for ceramics, transferring the pattern to the surface of a glazed ceramic body after the pattern formed by the paste mixture A (3) and the paste mixture B (6) is separated from the special stained paper for ceramics, and airing;

g. and putting the ceramic body into a kiln for firing.

Preferably, the screen is a 250-mesh S-type screen.

Preferably, in the step g, the firing temperature is about 800 degrees celsius, and the firing time is about 120 minutes.

The invention also describes a printed ceramic product produced according to the production process.

The color of the printed part of the porcelain produced by the process is extremely close to that of the porcelain body, the color difference is less than 3%, the thickness of the coating is low, the visual effect reaches unglazed, and whether the surface of the porcelain has the coating or not can not be distinguished by naked eyes.

The printed coating has high hardness, and scratches are not easy to leave after metal is scratched.

The process is simple and flexible, and can be used for printing by any screen printing equipment.

By utilizing the process, fine patterns can be represented on the surface of the porcelain, the thickness of the printed patterns can reach 0.12 mm, and the fine and complex patterns can be more conveniently represented compared with the traditional pattern sketching mode of glazing and erasing.

The firing temperature is about 800 ℃, which is much lower than the traditional 1130 ℃ firing temperature, thus being beneficial to saving energy and reducing cost.

Detailed Description

The technical means of the present invention will be described in detail with reference to examples.

The printing part of the porcelain product manufactured by the production process can realize the visual effect of 'pseudo-unglazed', and the production process needs the following raw materials: glazed porcelain to be printed, semitransparent matting powder, semitransparent relief powder, relief cooling agent, printing varnish and sealing oil. The semi-transparent matting powder, the semi-transparent relief powder, the printing varnish and the seal oil are all specially used for ceramics, and specifically, the semi-transparent matting powder with a Froude brand model of 197815, the semi-transparent relief powder with a German Hesley brand model of 60904, the relief cooling agent with a Japanese izawa brand model of 31181 and the printing varnish with a Reqiong brand model of 8608 can be selected.

The specific production process comprises the following steps:

firstly, mixing translucent matting powder and printing varnish according to the mass ratio of 5: 3, and grinding for at least 3 times by using a grinder to form a paste mixture A. The grinder can be a three-roller grinder.

And secondly, mixing the semitransparent embossment powder, the embossment cooling agent and the printing varnish according to the mass ratio of 5: 6, and grinding the mixture into a pasty mixture B by a grinder. When mixing, the translucent embossment powder and the embossment cooling agent can be mixed firstly, and the mixture is mixed with the printing varnish. The grinder can be a three-roller grinder.

And thirdly, controlling the indoor temperature of the printing chamber to be 25-26 ℃ and controlling the humidity to be 50-60%. And (3) printing the paste mixture A on the special stained paper for the ceramic by using a silk screen to serve as a base layer of printing. And then drying. The drying time was about 2 hours.

Fourthly, controlling the indoor temperature of the printing chamber to be 25-26 ℃ and controlling the humidity to be 50-60%. The paste mixture B is printed on the paste mixture a using a screen, and the paste mixture B is completely covered on the paste mixture a when printing. And then drying. The drying time was about 4 hours.

The third step and the fourth step are screen printing steps. The screen used in both steps is preferably a 250 mesh S-shaped screen.

And fifthly, covering the paste mixture B with cover oil. And then drying. In this step, the airing time was about 6 hours.

And sixthly, soaking the special stained paper for the ceramic printed with the patterns in water, and transferring the patterns to the surface of the glazed ceramic product after the patterns are separated from the special stained paper for the ceramic. And then drying. In this step, the airing time was about 2 hours.

And seventhly, putting the ceramic product with the printed patterns in a kiln for firing. The firing temperature is about 800 degrees celsius and the firing time is about 120 minutes. After the firing is finished, the printed part on the surface of the porcelain product presents an unglazed visual effect.

The color of the printed part of the porcelain produced by the process is extremely close to the color of the porcelain body, the color difference is less than 3%, the thickness of the coating is low, the visual effect reaches unglazed, whether the surface of the porcelain is coated or not can not be distinguished by naked eyes, and the visual effect is very attractive.

The printed coating has high hardness, and the scratch is not easy to leave after the metal is scraped, so that the manufactured porcelain product is beautiful and has high practicability.

The process is simple and flexible, and can be used for printing by any screen printing equipment. The hand printing table, the semi-automatic printing machine and the full-automatic printing machine can be selected according to actual conditions.

The embodiments described above are merely exemplary of the invention and are not intended to limit the invention in any way, so that those skilled in the art may make modifications and changes to the embodiments equivalent to those disclosed above. However, any simple modification, equivalent change and modification of the above embodiments according to the present invention shall fall within the protection scope of the present invention without departing from the technical principle of the present invention.

Claims

1. The production process of printing on ceramic products is characterized by comprising the following steps of:

b. mixing the semitransparent embossment powder (4), the embossment cooling agent (5) and the printing varnish (2) according to the mass ratio of 5: 6, and grinding for at least 3 times by using a grinder to form a paste mixture B (6);

g. and putting the ceramic body into a kiln for firing.

2. The process of claim 1, wherein the screen is a 250 mesh S-screen.

3. The process according to claim 1 or 2, wherein in step g, the firing temperature is about 800 ℃ and the firing time is about 120 minutes.

4. A printed ceramic article, characterized in that it is produced by the production process as claimed in claim 1 or 2 or 3.