Screen printing is a commonly used printing methods, generally mainly in paper, wood, metal, ceramics, plastics and other materials for printing, glass is a special material, then screen printing can be printed on glass?
It is understood that the glass can also be screen printing, the use of specialized glass screen printing machine can be screen printing on glass, the specific method is through the screen printing plate, the use of vitreous enamel, decorative printing on glass products.
Glass screen printing machine printing flat glass is widely used in all corners of people's lives: we can easily find them in the display window, architectural space zoning, building exterior landscaping, automobile windshields and inlaid glass, etc.; at the same time, the glass screen printing machine is also widely used in furniture decorative and gaming tools, as well as decorative and artistic creation to become a part of the creative design work of the glass manufacturing The glass screen printing machine is also widely used in furniture decoration and game tools as well as in decorative and artistic creations as part of the creative design work in glass manufacturing.
Two, glass screen printing machine what screen printing method
Glass screen printing machine screen printing on glass, screen printing method there are many kinds of common main:
1, glass etching screen printing
In the glass surface hot coating wax layer and other solidifying materials, as a corrosion-resistant layer, and then in the coating with a needle, knife, etc. engraved with a picture pattern, revealing the glass Appearance, and then in this part on the hydrofluoric acid for corrosion. Glass etching screen printing hot and cold printing two ways:
(1) hot printing
will wax, asphalt, stearic acid and other manufactured adhesives, mixed with a few corrosion-resistant powder modulation into corrosion-resistant materials, through the hot printing screen version, according to the design pattern, the printing material scraped printed to the glass exterior, constituting a resistive film. Resist film on the part of the exposed glass, is the need to etch the picture. Etching using chlorofluoric acid, etching to be rinsed off with boiling water printed on the glass resist layer.
(2) cold printing
Resist printing material can use special asphalt paint with resist powder, you can also buy commercially available resist ink. Printing is completed, until the resist film is completely dry, it can be hydrofluoric acid corrosion. Cold printing is suitable for etching of individual patterns.
2, glass ice screen printing
Ice is commonly known as orange peel pattern, is very fine low melting point glass particles. Ice glass silkscreen, is the first in the glass surface silkscreen colored or colorless glass frit layer (flux), and then ice glass particles scattered in this layer of glass frit layer, after 680 ~ 720 ℃ sintering, so that the glass surface frit layer and ice particles layer **** fusion and the role of relief.
3, glass frosting screen printing
Sanding is in the products on the glass, adhering to a certain size area of glass glaze powder, after 680 ~ 720 ℃ high-temperature baking, so that the glass glaze coating melted on the glass surface, and shows a different color with the main body of the glass of a decorative method. The specific method is: on the surface of the glass product, screen printing a layer of pattern pattern formed by the resist. To be printed on the pattern pattern air-drying, and then sandblasting process. Then after high-temperature baking, there is no pattern pattern at the sand surface will melt in the glass surface, and silkscreen pattern place due to the role of the flame retardant, masked in the pattern on the sand surface can not be fused on the glass surface. After baking, the transparent skeleton pattern will appear through the translucent sand surface, forming a special decorative effect.
4, glass silkscreen ion exchange color
Through the exchange of silver and sodium ions in the glass, and then make its recovery, into a metallic gel, you can get the color glass. In the bright glass plate with silver ions containing screen ink only need to color part of the printing, firing and washing, only the printing part of the yellow into brown. The color tone and concentration etc. will change depending on the firing conditions. Since there is no reflection difference between the uncolored part and the colored part, there is no unnatural feeling at all. This decorative process of screen printing ink (printing material) is mostly composed of silver carbonate, copper sulfate (burnt powder), ferric dioxide, talcum powder, etc., with a few zinc powder as a catalyst.
5, glass matte screen printing
The appearance of the glass matte oil ink, screen printing plate printed on soda-lime glass, a few minutes after the wash, the effect is like tea-colored glass. General etching of glass using fluorine acid, there is a certain degree of danger, with this ink does not contain strong acid, the operation is more simple.