Why does the pvc bag crack in winter?

PVC will dry and crack in winter, which may be caused by factors such as environmental temperature, fiber adhesion inside the leather, and excessive cleaning.

1. Dry cracking caused by the influence of the temperature of the environment
The PVC bag will be affected by the cold air in winter. In addition, we need to keep warm. In the case of indoor air conditioning or floor heating, a cold and hot will cause a chemical reaction in the cortex, which makes the PVC bag easy to crack and crisp.
Under normal circumstances, the temperature resistance of PVC material is between minus 15 degrees and 80 degrees. Generally, the temperature is too low to make the bag material poor tortuous, causing the PVC bag to dry and crack.

2. The internal fiber adhesion of the leather leads to drying and cracking
When the grease inside the PVC bag is in a natural state, it will slowly volatilize and disappear over time in winter, and the fibers inside the PVC material bag will be bonded to each other, thus making the bag Hardened and cracked when bent.

3. Excessive cleaning

The more expensive the PVC bag, the richer the pores and the better the breathability, but it is also easy to absorb the things on its surface. In winter, we will inevitably wipe the bag with clean water, which will hydrolyze in the presence of water, and the sun's ultraviolet rays in winter are relatively strong, which will destroy the oil film. So it will cause cracking.