Silk-screen GlassFor Decoration,Doors And Windows,Partitions

Silk screen glass is a kind of decorative glass that uses glass screen printing technology to perform decorative printing on the glass surface and then fires it at high temperature.

Glass screen printing is to use a screen printing plate and glass glaze to perform decorative printing on glass products. Glass glaze is also called glass ink and glass printing material. It is a paste printing material mixed and stirred by coloring materials and connecting materials. The coloring material is composed of inorganic pigments and low melting point flux (lead glass powder); the binding material is commonly known as suet in the glass screen printing industry. The printed glass products must be placed in a furnace and fired at a temperature of 520~600°C. Only then can the glaze printed on the glass surface be solidified on the glass to form colorful decorative patterns. If silk screen is used together with other processing methods, more ideal results will be obtained. For example, using polishing, engraving, etching and other methods to process the glass surface before or after printing can double the printing effect.

 So how to produce silk screen glass? Hebei Jinjie Glass Products Co., Ltd. will introduce to you the specific process of screen printing glass, stretching the screen → sizing → drying → printing → developing → drying ↓ flat glass → cutting → edging → cleaning and drying → printing ↓ sintering, although The process flow looks quite simple, but there are many things that need to be paid attention to in the specific operation:

 1. Glass suitable for printing is cut according to user requirements. The glass can be in regular or irregular shapes, then beveled and ground, then cleaned, dried and ready for use. Special attention should be paid here that there should be no water marks on the glass surface.

 2. Selection of silk screen The screen printing plate for glass printing is the same as the general screen printing plate. The glass screen printing plate can be made of synthetic fiber screen, stainless steel screen or natural fiber screen. When printing general color materials, any of the above screens can be used, and generally cheap synthetic fiber screens are used; when used for gold and silver decoration, stainless steel screens cannot be selected. The specifications of the wire mesh are generally 270 to 300 mesh.

 3. Selection of screen frame. Currently, the more formal screen frame with less deformation is aluminum alloy screen frame. Its size should be larger than the pattern. The specific size should be that the outer edge of the pattern should be between 70 and 100mm from the screen frame. In addition, when choosing a screen frame, its strength is very important. The key is to have enough rigidity in the horizontal direction.

 4. The stretch net chooses the wire mesh and the screen frame, and combines the two. This is the stretch net. There are many ways to stretch the screen, including manual, motorized, and pneumatic methods. The most advanced one at present, which can stretch high-quality screens, is the pneumatic stretcher. The requirements for stretching the net are that the tension is uniform, the warp and latitude lines of the net are kept vertical, and the glue that sticks to the net must be firm and not loose.

 In addition to glass screen printing, the Printing Supplies Network also introduces you to another glass printing technology, which is glass product etching screen printing. For a long time, the etching decoration of glass products has been to heat-coat a wax layer and other reinforcement materials on the surface of the glass as an anti-resistant material. Etch the layer, and then use a needle, knife, etc. to carve patterns on the coating to expose the glass surface, and then apply hydrofluoric acid to this part for etching. This process continues to be used by manufacturers today, but its processing method is time-consuming, laborious, and inefficient. The silk screen etching process makes etching decoration of glass products simple, time-saving and labor-saving.

 There are two methods for etching silk screen printing on glass: hot printing and cold printing. Thermoplastic etching screen printing is to add a small amount of resist powder to a binder prepared from paraffin, asphalt, stearic acid, etc. to prepare a resist printing material. The printing material is scraped and printed according to the design pattern through the thermal printing screen plate. to the glass surface to form a resist film. The part of the glass exposed on the resist film is the pattern that needs to be etched. Etching is performed using chlorofluoric acid, and after etching, boiling water is used to rinse off the resist layer printed on the glass. Glass silk screen etching can also be performed using cold printing methods. For resist printing materials, special asphalt paint plus resist powder can be used, or commercially available anti-adhesive inks can be purchased. After printing is completed and the resist film is dry, hydrofluoric acid etching can be performed. Hot stamping is suitable for the etching of two-dimensional and four-dimensional continuous patterns, while cold stamping is suitable for the etching of individual patterns.

YAOTAI is a professional glass manufacturer and glass solution provider include range of tempered glass,laminated glass, reflective glass，float glass,mirror,Door and window glass, furniture glass, embossed glass, coated glass,textured glass and etched glass. With more 20 years development,there are two produce lines of pattern glass,two lines of float glass and one line of restoration glass. our products 80% ship to overseas,All our glass products are strict quality control and carefully packed in strong wooden case,ensure you receive the finest quality glass safety in time.