WENZHOU NACHENG NEW MATERIAL TECHNOLOGY CO., LTD

NEWS

Causes and Solutions of Defects in Food Bag Production

Release time:

2023-06-16

Reasons for the manufacture of food bags: 1. The tape should be evenly coated with gravure marks; 2. Too much glue; 3. Poor lubricity of substrate surface; 4. There are impurities in the film guide roller of the conveyor belt; 5. Scraper debris or damage, causing scratches; 6. High winding tension and wrinkling of the film 7. High ambient humidity or humidity during processing results in untreated carbon dioxide and whitening between layers. Solutions for the food bag manufacturing process: 1. Adjust the viscosity, concentration and scraping angle of the feed liquid, and replace the gravure cylinder; 2. Re-set the coating amount or replace the austrian roller; 3. Increase the temperature of the compound roll; 4. Clean the guide roller; 5. Clean or polish the scraper; 6. Adjust the winding tension and speed; 7. Increase the drying temperature and reduce the ambient humidity.

Causes and Solutions of Defects in Food Bag Production

Reasons for the manufacture of food bags:
1. The tape should be evenly coated with gravure marks;
2. Too much glue;
3. Poor lubricity of substrate surface;
4. There are impurities in the film guide roller of the conveyor belt;
5. Scraper debris or damage, causing scratches;
6. High winding tension and wrinkling of the film 7. High ambient humidity or humidity during processing results in untreated carbon dioxide and whitening between layers.
Solutions for the food bag manufacturing process:
1. Adjust the viscosity, concentration and scraping angle of the feed liquid, and replace the gravure cylinder;
2. Re-set the coating amount or replace the austrian roller;
3. Increase the temperature of the compound roll;
4. Clean the guide roller;
5. Clean or polish the scraper;
6. Adjust the winding tension and speed;
7. Increase the drying temperature and reduce the ambient humidity.