Polyimide solar net plate and manufacturing method

Abstract

The invention relates to a solar net plate, in particular to a polyimide solar net plate. The polyimide solar net plate comprises a net frame and a polyester wire net. The polyester wire net is tied to the bottom of the net frame. A silk screen printing hole is formed in the center of the polyester wire net, and the polyester wire net is in a concentric square shape. A stainless steel wire net anda polyimide film are further included. The polyimide film is fixed to the bottom face of the stainless steel wire net. A high-temperature glue layer is arranged between the polyimide film and the stainless steel wire net. The polyimide film is provided with a plurality of wire grooves, and a printing pattern is composed of the wire grooves. The top face of the stainless steel wire net is fixed tothe polyester wire net. The stainless steel wire net is larger than the silk screen printing hole and covers the silk screen printing hole, and a hot melt glue layer is arranged between the stainlesssteel wire net and the polyester wire net. The net plate manufacturing technology is simple, the manufacturing cost is low, the yield is high, the service life of the net plate is long, and frictionresistance and cross section sharpness are obviously improved; and the service life reaches 100,000 times or more, and the purchasing cost of printing net plates is reduced for battery piece manufacturers.

Description

technical field [0001] The invention relates to a solar screen, in particular to a polyimide solar screen and a manufacturing method. Background technique [0002] Existing screens for solar crystalline silicon cell printing use diazo-type photosensitive materials for all pattern parts. After ultraviolet exposure and development, during the exposure process, the chemical molecular structure of the photosensitive material changes and is no longer water soluble. However, the part covered by the film negative is not irradiated by ultraviolet rays, and still has the super water solubility of the material itself. After the exposed screen is washed with water, it forms a pattern of "yin and yang", which can achieve the effect of printing. However, the screen plate-making process for printing solar crystalline silicon cells is complex and numerous, and the requirements for cleanliness, temperature, and humidity of the environment are very strict in the plate-making process, and the...

AI Technical Summary

Problems solved by technology

However, the screen plate-making process for printing solar crystalline silicon cells is complex and numerous, and the requirements for cleanliness, temperature, and humidity of the environment are very strict in the plate-making process, and the yield is less than 50%. The cost of screen plate production is extremely high, and hard to fall

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