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Zhejiang Baolun New Material Technology Co.,Ltd.
16
2023
-
06
Reasons and solutions for defects in food bag manufacturing
Author:
Reasons for food bag manufacturing:
1. The adhesive tape should be evenly applied with gravure marks;
2. Excessive glue application;
3. Poor surface lubricity of the substrate;
4. There are impurities in the conveyor film guide roller;
5. There are debris or damage on the scraper, resulting in scratch marks;
6. High winding tension and wrinkling of the film 7. High environmental humidity or moisture during processing, resulting in untreated CO2 between layers and whitening phenomenon.
Solution to the food bag manufacturing process:
1. Adjust the viscosity, concentration, and scraper angle of the feed liquid, and replace the gravure roller;
2. Reset the coating amount or replace the Austrian plate roller;
3. Increase the temperature of the composite roller;
4. Clean the guide roller;
5. Clean or grind the scraper;
6. Adjust the winding tension and speed;
7. Increase drying temperature and reduce environmental humidity.
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