The use of water-based screen printing ink that those matters needing attention?

1, without affecting the screen printing speed of the case, try to make water-based screen printing inks in the printing process of drying a little slower. This can be added slow drying agent to adjust. Different manufacturers need to join the slow-drying ink different amount of ink, generally not more than 5%. After adding slow-drying agent ink will thicken, pH value will be reduced. Therefore, adding slow-drying agent at the same time to join water and stabilizers to control the viscosity and pH of the ink.

2, adding slow-drying agent and speed, can reduce the blocking version. Screen printing speed is too slow will make the water-based screen printing ink spread on the plate, causing network adhesion, however, water-based screen printing ink drying too fast and will make the ink can not be fully transferred, causing dot plot plot around the ink, blocking phenomenon.

3, UV ink first brand analysis Add slow-drying agent can solve the screen printing abrasion and varnish surface sticky dirty. Ink drying too fast will cause the ink does not enter the infiltration stage dry solid substrate surface, resulting in insufficient adhesion, the ink layer is easy to fall off, overprint or glazing, the latter color printing plate will be the previous color ink stick out, right This can also be done by changing the color sequence or reducing the viscosity of the ink.

4, guide roller fever, can also speed up the screen printing speed of drying. When we screen printing products with a large amount of ink, if the screen printing machine drying capacity is limited, each time the speed just open boot unpleasant, after a period of time the speed there is some room for improvement, and this is the guide paper Roller fever reason. After the paper heating roller is not easy to stick to the surface of the water-based screen printing ink, the boot, the independent drying device in advance to open just started the machine can be the first suction device off, so that equipment can be accumulated in the shortest possible time the maximum heat, Speed ​​can be improved quickly.

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screen printing ink water based screen printing ink

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