Tel: +86 188 2689 9458
source:Industry News release time:2023-02-09 Hits:
With the development of the market, consumption has become more and more required, and its own bags have attracted the eyes of many people with their unique shapes and convenience characteristics. The expansion of the independent bag size has been continuously raised, mainly including leakage, inflammation, sealing asymmetry, and size errors. Today, Xiongxian Giant Paper Package brings you a solution.
1. Bag leakage
The reason for leakage of self -standing bags is mainly to choose composite material selection and heat seal strength.
1. Material selection
The selection of materials has a great impact on the quality of independent bags. The appropriate material can ensure the heat -sealing strength of the independent bag and the peeling strength between the material layer, and ensure that the independent bag is not easy to damage. Therefore, the surface tension of the composite surface of the thin film must be greater than 38DYN/CM; the low temperature thermal seal performance of the inner heat -seal film is good, and the surface tension of the hot cover must be less than 34DYN/CM; in addition, the ink with good connection performance must be selected. , High solid content and low viscosity adhesive, high -purity organic solvents.
2. Hot seal intensity
Low the heat of the heat is also the cause of the leakage of the independent bag. The heat sealed intensity is low, and the heat seal may be separated from the external environment, resulting in leakage.
Therefore, the heat seal temperature and thermal pressure should be set according to the characteristics of the independent bag material. After the hot seal is completed, the leak test is also required. The simplest and practical method is to charge a certain amount of air in the bag, seal the hot bag, put it in the pot of the water, squeeze the different parts of the bag with your hands, and squeeze the bags of the bag with your hands. If there is no air bubble, it means that the blocking of the bag is well closed. In addition, the four -layer seal at the bottom of the independent bags is the most critical part. After full test verification, the heat seal temperature, thermal sealed pressure and the heat sealing time can be determined.
Second, bag type uneven
The flatness is one of the indicators to measure the appearance quality of the packaging bag. In addition to the material factors, the flatness of the self -standing bag is also related to the heat sealed temperature, thermal sealed pressure, the heat sealing time and the cooling effect. The temperature of the heat seal is too high or the hot sealed pressure is too large, and the heat sealing time is too long, which will cause the composite membrane to shrink and deform. Insufficient cooling can cause insufficient setting after the heat sealing, cannot eliminate the internal stress, and fold the bags. Therefore, the process parameters should be adjusted and ensured that the cooling water circulation system work is normal.
Third, poor symmetry
Symmetry poorly affects the aesthetics of the bag, but also affects the performance and stability of the heat. The main reasons for the poor symmetry of independent bags include the incorrect thickness of the composite membrane, including lotus leaf edge, too small tension of double floating rollers, improper control of the base tension, and some rolling rotation unstable. Therefore, to avoid taking targeted solutions.
By adjusting the tension of double floating rollers, checking and adjusting the relevant guide rollers (such as compensation rollers, bias rollers, etc.), appropriately reduce the tension of the discharge, and add the waiting time to correction during the heat sealed.
In addition, the bag type is also related to factors such as photovoltaic tracking, discharge, cursor design, rubber roller balance, and synchronization of step motor or servo motor. This problem should be solved according to different products and different bag -making equipment in specific operations.
Read recommendations:
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
spout pouch packaging supplier
Snack Pouches: The Ultimate Guide
How to judge the quality of liquid packaging bags?produce trays and packaging
Popular recommendation
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging
aluminium spout pouch price
spout pouch machine Solution
zip lock bag for coffee manufacturer
Vacuum zipper bag Factory
super pouch tool bag sales
bag in box wine wholesaler
packaging spout pouch wholesaler
The quality of rice vacuum packaging is very important
What is a coffee bag
Material of liquid bag
Sterilization classification and principle of sterile bags
How To Seal A Spout Pouch- The Complete Guide
aluminum foil bags for cooking manufacture.Future development trend of facial mask packaging bags
How to use the air hole on the coffee bag
What are the advantages of plastic packaging bags
The use of aluminum foil bags
How to determine whether the food packaging bag is regular?
Why is the food packaging bag perforated?
What are the functions of biodegradable plastic bags?
What benefits do liquid packaging bags bring to the purified water industry.bag in box maker
What are the bag materials
The design of food packaging bags is very strict for blocking and breathing properties
Analysis on the Application of Food Packaging Bags
How long can cooked food vacuum packaging bags last?
Bag in box packaging is popular in the market.stand up spout pouch
Why does the inner layer of aluminum foil bag use CPP instead of PE?
What are the abilities of composite food bags..stand up pouches for food package