Why does the PP Velcro Braided Sleeve change color and turn white?

There is a thorny problem in the Open Type Braided Sleeve industry, that is, after a period of use of PP Velcro Braided Sleeve, white and foggy substances suddenly appear on the surface. This phenomenon seems serious, but the original color can be maintained after wiping off. Most of the phenomenon will appear in some products with large structure and long vulcanization time. In the industry, this phenomenon is called frosting and fogging. Does this phenomenon exist in the Pp Velcro Braided Sleeve you bought?

There are many whitening phenomena in PP Velcro Braided Sleeve, which are only caused by the process error of the Open Type Braided Sleeve or the problem of the formula ratio in the raw materials. The main reason for white paint in the raw material is the conflict between silicone oil and other compounds in the secondary mixing process, such as adding a proper curing agent in the raw material, it can improve the release rate and production efficiency, and useless dosage will cause the product to change into white,
In addition to wrong raw materials and process methods, incorrect handling during operation will also bring whitening to the product, too much release agent spray on the production line may cause frosting and vomiting, and also when the temperature control is uneven will cause this phenomenon. In addition, the aging of PP Velcro Braided Sleeve also has certain factors, because the performance of the raw materials is not outstanding, and the frequency of whitening is higher under the influence of the use environment and temperature difference environment,
In view of the above phenomenon, before processing the Open knitting sleeve, you should first understand the parameters of the raw materials, which substances can be added and which substances cannot be added. The conditions of the final processing of the machine need to be clarified in all aspects, and the main problem is To control the addition of substances in raw materials, such as curing agent, color glue, silicone oil, etc., we must find out whether it can be added and tested after blending.