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Photovoltaic high reflective glass screen printing ink

High reflective white glaze refers to a type of glass glaze with high reflectivity for visible light, mainly composed of glass flux, functional whitening powder, and inking oil. A product made by mixing, grinding, and homogenizing three materials, also known as glass ink in the industry, to prepare a highly reflective white glaze for the finished product

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01 High reflective white glaze

Refers to a type of glass glaze with high reflectivity for visible light, mainly composed of glass flux, functional whitening powder, and inking oil. A product made by mixing, grinding, and homogenizing three materials, also known as glass ink in the industry, to prepare a highly reflective white glaze for the finished product

 

02 Application of High Reflective White Glaze

The highly reflective white glaze is printed on the photovoltaic glass through screen printing, and then the organic solvent in the inking oil is volatilized through a curing furnace (180~220 ℃). Then, it is tempered through a tempering furnace (680~720 ℃, 90~140s) to firmly adhere to the glass surface. Figure 2 shows the photovoltaic backplane glass. The white pattern is a highly reflective white glaze that is tempered by screen printing.

 
 

03 Principle of High Reflective White Glaze for Improving Power Generation of Photovoltaic Modules

 

The crystalline silicon solar cell module is composed of glass, EVA, battery chips, backplane, frame, and other materials. It is packaged into a "sandwich" structure in the order of glass EVA battery chips EVA backplane glass. Most of the incident light is irradiated onto the front and back panel glass, while a small portion is projected onto the back panel glass from the gaps in the battery. If the back panel glass has no coating, the light directly penetrates the back panel glass, causing the loss of light. Applying a layer of highly reflective white glaze coating to the back panel glass will reflect some of the light penetrating the front panel back onto the battery panel, making full use of light energy, and improving the efficiency of the battery module by 3% to 6%