Polymer materials represent a discipline that is both ancient and modern. Its ancient roots lie in human utilization, dating back to antiquity when natural polymers such as resins, rubber, animal hides, silk, cotton, cellulose, and wood were already in use. Yet, as a scientific and engineering field

As friction in film production is unavoidable, static electricity affects production in the following main aspects: Printing DifficultiesDue to (minor static discharge), burrs or fluffy (whisker-like) ink overflow often appear at the edges of printed patterns. Static electricity charges the ink,

As the Shenzhen ChinaPlas2025 Exhibition wrapped up triumphantly, Sumino Precision Technology’s four-day showcase came to a spectacular end. Looking back, the event was a whirlwind of activity: eager client inquiries, our team’s unwavering dedication, and captivating equipment demos all combined to

1. Main Characteristics of PVC Heat-Shrinkable FilmThe primary features of PVC heat-shrinkable film include high transparency and gloss, which provide excellent display effects for packaged goods and superior printing performance. As a result, products wrapped in PVC heat-shrinkable film have an adv

The quality indicators of cast films involve several aspects, with thickness uniformity being the primary issue. Controlling the thickness of cast films is the most critical problem in the production process. There are many factors affecting film thickness, mainly as follows:1. TemperatureThe select