Glass special screen printing process

1. Glass products etched silk screen

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For a long time, the etching of glass products is in the glass surface of the hot wax layer and other reinforcement materials, as a resist layer, and then on the coating with a needle, knife and other engraved pattern pattern, exposing the glass surface, and then This site is subject to hydrofluoric acid for corrosion. This process continues to have manufacturers applications, but its processing methods time-consuming, laborious, inefficient.

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Silk screen etching process, so that the etching of glass products become simple, time-saving, effort. Glass etching silk screen, there are two kinds of hot and cold printed method.

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Thermoplastic etching silk screen, is the paraffin, asphalt, stearic acid and other prepared by the adhesive, add a small amount of anti-corrosion powder modulation into corrosion, through the hot screen version, according to the design drawings, To the glass surface, forming a resist film. The part of the film that exposes the glass on the resist film, that is, the pattern that needs to be etched. Etching is carried out using chlorofluoric acid, and after etching, the resist is printed on the glass with water.

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Glass screen printing etching, can also be used cold printing method. Anti-corrosion printing can be used special asphalt paint plus anti-corrosion powder, can also buy commercially available anti-ink. After the printing is completed, until the resist film is completely dry, can be hydrofluoric acid corrosion.

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Hot prints are suitable for two consecutive, quadrilateral pattern pattern etch, cold prints to adapt to individual pattern etch.

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2. Glass Binghua silk screen

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Binghua commonly known as orange peel, it is actually very small low melting point glass particles. This small glass particles, lead composition is high, color and colorless two, color hue with red, yellow, blue, green, white, etc., can also be prepared in the middle tone.

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Silk screen ice decoration, elegant and generous, mostly used for architectural glass decoration and art glass decoration, such as high glassware, lamps and other decoration.

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Silk screen glass ice decoration, is the first in the glass surface layer of colored or colorless glass flux layer (flux), and then the ice glass particles scattered on this layer of glass flux layer, through 500 ℃ ~ 590 ℃ sintering, the glass The surface of the flux layer and the ice layer of particles are eutectic and produce relief effect. If the silk is printed on the color of the flux, and micro-ice is transparent, through the high temperature eutectic, then the glass ice pattern pattern of the molten layer fade, and in the glass surface to form a colored, uplift transparent embossed pattern.

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3. Glass of sandblasting silk screen

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Frosting is in the glass on the product, adhere to a certain size of the area of ​​glass glaze powder, after 580 ℃ ~ 600 ℃ high temperature baking, the glass glaze coating melted on the glass surface, and showed a different color with the glass Of a decorative method. Adhesive glass glaze powder, can be used to brush pen, can also be used roller roll.

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Through the silk screen processing, you can get the masonry surface empty pattern. The method is: on the surface of glass products, silk screen by a layer of resistance to the formation of patterns. To be printed on the pattern pattern air-dried, and then Frosting processing. And then after high temperature baking, no pattern pattern at the surface of the frosted surface will be melted in the glass surface, and silk screen pattern due to the role of resistance, the mask on the sand surface can not be deposited in the glass surface. After baking the transparent floor empty pattern through the translucent sand surface and show out to form a special decorative effect.

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Frosting silk screen resistance flux, by the iron oxide, talc, clay and other components, grinding with a ball mill, fineness of 350 mesh, silk screen before the use of adhesive blending.

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4. Silk screen ion exchange coloring of glass

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Through the silver and glass in the sodium ion exchange, and then to restore, into a metallic gel, you can get colored glass. In the transparent glass plate with silver ions containing the screen ink only to color part of the printing, firing and washing, only the printing part from yellow to brown. Firing conditions are different, color and concentration will change. Since there is no coloring part and the coloring part does not reflect the difference, so there is no unnatural sense, just as the glass melt coloring the same. The coloring of the text on the glass and the coloring of the markings and the heat treatment of the rear window of the car, as well as the brownness presented by the degree of experimentation with the experimental experiment, is obtained in this way.

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This decorative process of silk screen printing ink (printed matter) by the silver carbonate, copper sulfate (burning powder), ferric oxide, talc and other components, with a small amount of zinc powder as a catalyst.