国产欧美日韩激情综合在线_日韩欧美精品一中文字幕在线_野花高清在线观看免费官网_日本中文字幕在线二区_国产三级视频在线观看视_免看一级a一片色老头_色婷婷亚洲一区二区_十八禁网站在线观看500部_精品国产色欲AV果冻传媒_337p欧洲亚大胆精品

Welcome to Dongguan jieteng Electronics Co., Ltd. official website!

Why does the EVA product fade?

Popularity:5242Publication time:2018-7-11
EVA products can be seen everywhere in our lives, such as the lining for packaging products, as well as soundproof cotton, and may also be used to make ground materials. EVA products have many advantages, but some people have found that some EVA products will fade, but some will not. Why? EVA packaging box lining manufacturers give you a brief introduction:
1. this has a great relationship with colorants. If some colorants are highly reducible, they will affect heat resistance and fade.
2. some organic pigments react with other chemicals.
3. the heat resistance of pigment selected during processing is less than the heat resistance of EVA products.
4. colorants are not light enough. Light resistant colorants are easily affected by strong light.
EVA packaging box lining manufacturers in this remind everyone, in the purchase of EVA products, the best to professional, quality and guaranteed manufacturers to buy, in this way can better buy high quality EVA products.
Key words:,,

Copyright © 2018 Dongguan jieteng Electronics Co., Ltd.

Top