Tech Text

Why is the screen printing mesh mostly yellow?

There are many problems in the production process of screen printing meshs. It is often possible to make a small mistake. The color of the screen will change. It is more complicated and cumbersome, so the need is serious and careful.

Why is the color of the screen yellow?

We know that the beautiful colors of nature are due to the effect of light. Without light, there is no color. The color of light is determined by the frequency of light waves. Red, orange, yellow, green, blue, basket, and purple are the light that people can feel by the visual nerves, called visible light. The surface of the object selectively absorbs and reflects light to obtain different colors. In short, any color we can see is the color of light. That is, when a beam of light hits the surface of a yellow object, only the yellow light is reflected, stimulating our optic 

nerve and coloring, while other colors are absorbed, so we see that the color of the object is yellow.

Because screen printing requires exposure when printing. Ultraviolet light is used. Purple light is a mixture of two colors of cyan and magenta in the color, which means that the yellow hue is missing in black. When exposed, the yellow color of the purple plus mesh is superimposed into black, so the surface of the yellow screen (ie, the bottom of the emulsion layer) is not sensitive or less exposed, so there is no "back drying" phenomenon, and the resulting image has high definition. , will not produce vignette.

The above is the introduction of the color of the screen printing mesh , and now most of the market is using a white or yellow polyester mesh. No matter what color, we have to pay attention to the brand when choosing. The most important thing is that it is very important to look at the quality and the historical experience of the manufacturer.

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