What Points Should We Pay Special Attention To When Producing The Appearance Of Winding Film?

Winding film is one of the simplest packaging materials, winding film directly mounted on a rack or hand-operated, by the tray rotation or film around the tray is mainly used in the packaging of the wrapped tray after damage, and ordinary tray packaging. This packaging speed is slow, suitable for film thickness of 15 ~ 20μm. There is also sealed packaging. This packaging is similar to shrink-film packaging, the film goes around the tray to wrap the tray completely, and then two heat grips heat seal the film at both ends together. This was the earliest use of wrap film, from which more forms of packaging were developed.
The most important characteristic of wound film is the unitization: unitization is one of the biggest characteristics of wound film packaging. Primary protection: Primary protection provides surface protection of the product, forming a very light, protective appearance around the product, so as to achieve the purpose of dust, oil, moisture, water, anti-theft.
Cost saving: The use of winding film for product packaging can effectively reduce the use cost, the cost of which is only about 15% of the original wooden box packaging, about 35% of the heat shrink film, about 50% of the carton packaging. At the same time can reduce the labor intensity of workers, improve the efficiency of packaging and packaging grade.
Compression firmness: With the help of the retraction force after the winding film is stretched, the product is wrapped and packaged to form a compact unit that does not take up space. The pallets of the product are tightly wrapped together, which can effectively prevent the dislocation and movement of products during transportation. Meanwhile, the adjustable stretching force can make the hard products close to each other and the soft products tight. Especially in the tobacco industry and textile industry has a unique packaging effect. Wrapping film appearance requirement is an important part of our product standards. In this standard, there are technical requirements for the quality of broken end, bubble, perforation, rupture, stiff block, fisheye and flatness of the film. The evaluation method was GB/T10

457-1989 Appearance item analysis Method and some modifications are made on its basis. The winding film needs good transparency in use. Test method: GB/T 2410-1980 transparent plastic transmittance and fog test method. At present, most domestic production enterprises also use this standard to assess.