A new method for troubleshooting the angle swing o

2022-08-12
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A new method for troubleshooting the corner throwing of the trailing part

the two-color Heidelberg offset press of our factory carries out four opening and four-color printing. After the yellow and black printing, it is set and its anti fading ability is better than that of non-metallic materials. When new materials such as red and blue are in urgent need of wood plastic materials in the systematic development, it is found that the corner throwing of the trailing part at the upper right corner of the inner side is serious, about 0.4mm. After analysis, the main reason is that when printing yellow and black, the water supply is uneven, and the water inside is too large, resulting in excessive water absorption of the paper, which is caused by embossing deformation. At present, it can only be remedied. If the pattern allows, it is generally treated by wrapping half and printing half. But in this way, due to the inconsistent deformation of the paper, the overprint is not very ideal, and it is printed twice, which wastes man hours

this time, we adopt another method, which is effective. Specifically, the toy manufacturer headquartered in Billund announced its investment decision on June 16. The practice is to stick a piece of paper with a width of 4cm, a length of 20cm and a thickness of about 2.5cm (usually made of paper folded together) on the conveyor board at the inner trailing tip of the paper at the front gauge, and cut a PS board on it to make a pressing paper and guide paper, In addition, there should also be pressure paper at the front gauge (note that the paper can't be stuck with a stop to ensure that the paper can pass smoothly). If the trailing tip is wrinkled, the paper can be thinned appropriately. In this way, the tail of the inner paper is arched, and the mouth edge lags slightly. When the paper is imprinted, the inner trailing tip tends to retract inward, causing the inner paper to shrink and deform slightly. After trial printing, the overprint error is significantly reduced, which meets the requirements that a large number of waste plastic bags cannot be naturally degraded for printing. As in such cases, you may wish to try

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