久久本网站受美利坚法律保护-久久被窝电影亚洲爽爽爽-久久xx-久久www视频-欧美影视一区二区三区-欧美影视大全

Hello! Welcome to Dongguan Zhanhui Xin Packaging Products Co., Ltd. website!
Dedicated to the research and production
of various types of wrapping films

Service Hotline: +86-13682334449

Do you know the factors affecting the surface tension of stretch film?

The information comes from: Internet Published on: 2024-08-10

Many users may imagine the use of stretch film to be very simple, but in fact, its usage process, steps, and precautions are quite complicated. It is precisely because of this idea that the effect of the film cannot be fully manifested, such as the surface tension of the film. This performance is important for the use of the membrane and affects certain structures of the membrane itself. Below, we will mainly discuss the factors that have a significant impact on the surface tension of the film.

一、Non polar polymers have low surface free energy and low surface wet tension for stretch films, typically around 30 dynes/centimeter. In theory, if the surface tension of an object is less than 33 dynes/centimeter, ordinary ink or adhesive cannot adhere firmly, so surface treatment is necessary;

二、Polyester (PET, PBT, PEN, PETG) is a polar polymer with high surface free energy and a surface wet tension of over 40 dynes/cm. However, for high-speed color printing or to increase the adhesion between the vacuum aluminum plating layer and the surface of BOPET film, surface treatment of BOPET film is also necessary to further improve its surface wet tension;

三、During aluminum plating, there will be a transfer of the aluminum coating layer, and when applying adhesive to the stretch film, there will be a transfer of the coating layer. The main measure to prevent corona discharge on the back of the film is to adjust the pressure of the rubber pressing roller before the corona treatment roller. The pressure at both ends of the pressing roller should be consistent and appropriate.

When testing the surface tension of stretch film, we also need to conduct strict dynamic and static balance tests. The detailed test steps can be viewed through certain channels, and the precautions should be understood. When we judge the surface tension of the membrane, we first need to consider the influencing factors, so as to ensure that the use of the membrane will not be greatly affected and can play a better role.

[ Previous: How to choose high-quality stretch film? ]    [ Next: The main advantages of sealing tape ]    [ Return ]
Add WeChat
mobile phone Hotline: +86-13682334449
Address: Room 101, Building 3, No. 42-1, Wangfu Street, Dalingshan Town, Dongguan City, Guangdong Province
Dongguan Zhanhuixin Packaging Products Co., Ltd. Copyright
[Bmap Gmap] [Management] Guangdong ICP No. 18078543
QQ

Hotline

Heddy

+86-13682334449

E-mail

E-mail

heddy@zhanhuixin.cn

WeChat

WeChat

WeChat

Return to top

主站蜘蛛池模板: 国产一区精品在线观看| 国产精品亚洲色图| 亚洲欧洲精品成人久久曰| 欧美激情伦妇在线观看| 91热久久| 欧美一级高清片欧美国产欧美| 亚洲国产一成人久久精品| 久久国产夜色精品噜噜亚洲a| 久久国产一区二区| 欧美影欧美影院免费观看视频| 欧美 日韩 国产 成人 在线观看| 欧美日韩色片| 99久久免费国产精品特黄| 亚洲欧美一区二区三区国产精品| 精品日韩欧美国产一区二区| 国产精品麻豆a在线播放| 一级毛片在线看在线播放| 欧美色爽| 国产在线一区二区三区欧美| 久久国产欧美日韩高清专区| 欧美日韩精品| 日韩国产在线观看| 国产成人精品一区二三区| 一区二区在线播放视频| 看全色黄大色黄女片爽毛片| 添逼动态图| 欧美日韩精品一区二区三区高清视频| 免费国产高清视频| 99精品国产成人一区二区| 欧洲亚洲色图| 久久国产一区二区| 在线观看国产欧美| 国产高清在线精品一区二区三区| 国产高清美女一级a毛片久久| 明星国产欧美日韩在线观看| 国产成人3p视频免费观看| 亚洲第一页在线视频| 97热久久免费频精品99国产成人| 国产一区二区三区在线| 亚洲精品电影| 亚欧一区|