Why does the body paste printing process to appear the arching phenomenon?

1. Why is the arching phenomenon in the body sticker printing process?
It is one of the problems that frequently appears in the car sticker printing, mainly caused by the following reasons:
A. The sensitivity of the paper to the water. Single-sided PE bottom paper, if the product storage environment and the spray painting operation environment is too general assembly is easy to absorb water or water, resulting in the painting of the base paper arch.
B. The product stays too long on the heated spray painting machine.
C. Excessive temperature setting during the product printing process results in inconsistent expansion rate of the base paper and face mask.
D: the tension system of the drawing machine is not adjusted.
Solutions;
A. Please place the body sticker from the low temperature and put it in the spray painting environment for more than 24 hours, so that the body sticker will be in A stable state until the painting operation is carried out.
B. The heating system should be switched off immediately after the product is stopped. The best condition is to preheat the product before turning on the heating system to avoid this phenomenon.
C, the optimal temperature for the PVC membrane surface temperature at 35 ℃ to 40 ℃;
D. Adjust the tension system of the drawing machine and control the tension of the roll.
E, use the Inflex body paste to effectively avoid the above phenomena
2. Why is the body sticker on the face of the mask after painting?
This situation is usually caused by the pollution (such as oil pollution, silicone oil, etc.) or the aging of the rubber wheel. It is generally used to clean the products with non-woven cloth, such as ethyl acetate (or gasoline, non-aqueous ethanol), etc., or the PVC mask with the equal width of the pressure wheel can be eliminated after the roller is wrapped. If the phenomenon cannot be eliminated, the equipment needs to be checked and corrected.
3. Why does the body sticker generate static electricity in the process of painting?
The body paste mask is the material of PVC, which can produce a small amount of static in the process of painting. A small amount of static electricity will not affect the painting process. However, the following reasons can produce a large amount of static electricity, which can affect the painting process, including: spraying operation environment is too dry; Poor grounding of painting equipment; The spray head itself is caused by the leakage of electricity.
To avoid the production of a large amount of static electricity, the solution is affected by the painting process
A, keep the print process operating environment temperature at 23 + / - 3 ℃, relative humidity 60 + / - 5%; If air humidity is too low, you can get rid of static electricity by humidifying by humidifier or by sprinkling water on the ground.
B. Unpack the product in the spray environment for 48 hours before using it, which can effectively reduce the influence of static electricity.
C. Ensure that the painting equipment is effectively grounded, and it is better to install static eliminator on the spray machine.