Rubber blankets are too tight and easy to pile up
2019-01-29 10:03:59
Our factory has a J2203 machine. When printing a large area of ​​the yellow field version, the blanket cylinder is always filled with ink and the printing is not even. We checked the ink roller and the water roller, the pressure was good, and the center distance of the roller was checked, and there was no problem. Later, we detected the fluidity and viscosity of the ink, all in line with the printing requirements, and increased the lining of the blanket cylinder, there is no effect. Finally, we think that since the blanket cylinder part of the stack of ink, is it because the rubber market is too tight of.
Because the blanket squeezing too tight, there will be blankets close to the Simplified surface, the corresponding reduction in the elasticity of the blanket, in addition, under the influence of the blanket stretching, the blanket pressed against the lining, will The squeegee blanket and lining are pressed down so that the circumference of the squeegee squeegee is too small and not on the same circular arc. During the printing, the ink in the squeezing mouth cannot be smoothly transferred to the surface of the paper, and the remaining ink layer is accumulated on the squeegee. . Therefore, we will loosen the blanket and relax it slightly so that the mouth and other parts of the mouth are completely on the same circular arc. Through printing, we really do not stack ink, so that the stacking ink is eliminated.
Because the blanket squeezing too tight, there will be blankets close to the Simplified surface, the corresponding reduction in the elasticity of the blanket, in addition, under the influence of the blanket stretching, the blanket pressed against the lining, will The squeegee blanket and lining are pressed down so that the circumference of the squeegee squeegee is too small and not on the same circular arc. During the printing, the ink in the squeezing mouth cannot be smoothly transferred to the surface of the paper, and the remaining ink layer is accumulated on the squeegee. . Therefore, we will loosen the blanket and relax it slightly so that the mouth and other parts of the mouth are completely on the same circular arc. Through printing, we really do not stack ink, so that the stacking ink is eliminated.
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