Secretly tell you! Zipper self-sealing bags common problems!

Zipper self-styled bag processing process, often appear heat sealing part is not level off, take off a layer, the phenomenon such as death, become a soft package bag factory process problems. Small make up today to solve these problems, presents eight solution, hope I can help you boss 'away' of these evils! Make the zipper self-sealing bags with good quality! Common problem: 1, zippers and bag sealing parts of the body is not smooth; 2, zippers and bag sealing parts of the body appear local delaminating phenomenon; 3, the ends of the zipper with the edge of bag sealing cross areas appear 'fold' death; 4, the ends of the zipper and the edge of bag sealing phase cross parts appear local delaminating phenomenon. Solution: after more than the class self-styled zipper bags compared to observe adverse phenomenon, the problem related to the following: 1, the zipper's own heat shrinkage rate is greater than the heat shrinkage rate of compound thin film; 2, zipper, its melting point is greater than or equal to the melting point of heat sealing layer of film; 3, zippers on the cross section of snap button is too large; 4, zippers self-styled bag bag making machine local heat sealing bar design is unreasonable, it is recommended to use ultrasonic type heat sealing device; 5, local heat sealing head design is not reasonable, Too small) ； 6, ultrasonic heat sealing device output power shortage or insufficient pressure; 7, printing ink layer heat resistance; 8, the hardness of silicone rubber pad is not appropriate. Dongguang co. , LTD. , specializing in the production of zipper self-sealing bags, if you need, you can contact us at any time to order! We are specializing in the production of various food packaging bags, we are looking forward to cooperating with you!
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