Silk Screen Printing Disease Analysis--Inaccurate Flowers

In the printing production process, due to the influence of the printing platen, screen plate, scraper, paint printing paste, squeegee operation and post-processing, it is easy to cause print defects on the fabric, and the appearance of the product is affected. Reduce economic benefits. The following is a description of some common defects in the production of knitted underwear fabrics for flat screen printing and analysis of the main causes.

1. Inaccurate (error, misprint, wrong)

For patterns of two or more colors, one or several colors of patterns in all or part of the pattern on the printed fabric are disengaged or folded, and are not printed on the position to be printed, and are not in conformity with the pattern standard. Incorrect flowers.

Causes: (1) When the locator on the printing plate and the printing table or printing machine has a large gap, and the locator on the printing plate is loose, the force generated by the squeegee operation and the layout makes the printing plate move in the direction of force, and the pattern is not printed on the stencil. The location of India. 2 The distortion of the printing plate frame and the screens pasted on the plate frame are partially loosened or disengaged, and some of the patterns on the plates are removed from their original positions. (3) The difference in wet and dry degree of each printing plate in one pattern is larger, and the plate with higher humidity is more loose or partially loose. When the blade is running, the pattern of the plate moves to the direction of force, and the pattern on the fabric is local. Or all have different degrees of misalignment. 4 During the operation of the printing plate, the imprinted piece or cloth is moved so that the printed pattern is moved on the pad. 5 The tension of the screen when each printing plate is stretched differs greatly or unevenly. When the temperature and humidity are affected, the screen tension is small or the uneven layout pattern is easily displaced.