Analysis of printing quality problems (17-26)

17. Printing water stains

It is a stain or spot caused by water droplets. This is due to the fact that the fabric is dripped or splashed with water droplets for a period of time before the end of steaming after printing.

18-1. Scraper Bars

That is, the belt-like contamination in the radial printing appears in the roller printing. The rickets occur when the pressure of the printing blade is insufficient or impurities adhere.

18-2. Scraper Blades (Dragging)

18-3. Squeegee Strip (Deep Scratch)

19. The color is not clean or bad

The effect of pulling white, color or anti-inking is not clear. More often occurs in the case of improper control, discharge of paste, color paste, squeegee pressure or hair color (vaporization) conditions.

20. Color paste chapped

Department of printing due to color paste cracks caused by the pattern defects. More due to improper post-printing or color paste viscosity is inappropriate.

21. Rope streaks

Traces formed by traces of cords or rods used in the steaming process are left on the calico. More often occurs when the temperature of the steaming process is too high or the setting temperature is too low.

22. Rope strips

This is due to discoloration or staining caused by the printing cloth contacting the string or rod in the steaming process. Mostly caused by vapor condensation on the string or rod.

23. Detaching or scarring

It is due to the needle or cloth clip of the stenter or the abnormality caused by the inside. Due to the poor stitching or defect of the stenter, the track is not normal and the fabric width is abnormal.

24. White spot

It is a defect formed by the fact that a part of the pattern cannot be printed. More often than not, the presence of foreign matter or fabric yarns or foreign matter on the screen film causes the color paste not to print.

25. Cracking

It is exposed when the fabric is stretched or the fabric is bent. In many cases, color paste viscosity, screen mesh, squeegee pressure and other conditions caused by poor penetration of color paste occurs.

26. Ripples (cloud spots)

The ripples appear on the printed pattern. More often than not, the screen grooves of the screen or the pattern grooves of the printing drum and the yarn organization of the printing fabric overlap with each other to cause interference.