Tel: +86 188 2689 9458
source:other news release time:2023-03-27 Hits:
With the advantages of lower costs and more convenient carrying and access methods, soft packaging has developed rapidly in many fields and gradually become the mainstream of the packaging industry. Soft packaging dry composite film is a common soft packaging material, but sometimes there are some bubbles in this composite packaging film, which affects beauty. Today, the packaging takes everyone to enter the factory to explore the truth.
1. Surface tension
If the surface tension of the composite membrane is too small, the humidity of the adhesive on the surface will be poor, which will cause insufficient glue. In a place with less glue or no glue, bubbles will be produced. Or the surface tension of the film is uneven, which will also cause uneven glue to produce bubbles.
In order to avoid this problem, Giant Packaging Co., Ltd. has selected a thin film with a moderate tension and uniformly uniformly, such as polyethylene film on the surface of 3.8 × 10 ~ 2) n/m. The surface tension meets the requirements to produce.
2. High residue solvent
If the residual solvents are too high during the production process, the solvent vaporization forms a bubble sandwiched in the film, and air bubbles will also be formed.
The solution of Giant Packaging Co., Ltd. is as follows: 1. Control the drying temperature, control the temperature at 60-80 ° C, and set ventilation settings in the baked canal to accelerate the evaporation of the solvent. 2. Control the temperature and humidity of the production workshop. When the humidity in the air is high, the solvent volatilizes slows down. Therefore, the giant packaging controls the humidity of the workshop at 50%-60%to inhibit the residue of the solvent.
3. Production technology
When the composite roller is pressed, if the angle between the membrane is too large, it may be brought into the air, so that the composite film contains air bubbles, the film has high hardness, and the air bubbles are easier to enter when the thickness is large.
In this case, you need to adjust the angle between the composite roller and the membrane, try to enter the composite roller as much as possible, and ensure the flatness of the substrate to avoid loosening or shaking.
Read recommendations:
The application of vacuum in food packaging and freezing and drying industry
bag in box packaging distributors.Introduction to the process of aluminum plating bags and aluminum
Popular recommendation
PET food bag
Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging
Custom Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box
coffee tea pouch price
aluminium coffee bag sales
clear spout pouch Factory
juice bag in box custom
Spout pouch flexibility Factory
bag in box Production
new super pouch custom
Aluminum Foil Bag's applicable range is wide.aluminium coffee bag Factory
Retort bags, freeze-resistant vacuum bags
Classification of express packaging bags
What are the packaging machinery and equipment?
Will liquor vacuum bags affect the wine?
The difference between liquid bags and regular packaging bags
The printing principle of composite bags!beverage bag manufacturers
What is a composite bag
Introduction to the functions, features and usage of spout bags
Why are stand up pouch bags widely used?
Can food grade packaging bags be heated in microwave oven
Antique advertising bag.Aluminum foil bag maker
The origin of aluminum foil bags!aluminum foil bags for grilling Manufacturing
What are some issues to pay attention to when customizing food packaging bags?
Market prospect and advantages of heat shrinkable bags
Introduce the characteristics of Vacuum Zipper Bags
Characteristics of food composite bags.plastic pouches for food packaging
The characteristics and necessity of anti -ultraviolet packaging bag
The manufacturer distinguishes between high-temperature vacuum bags and frozen vacuum bags for you.v
Food safety testing methods for liquid packaging bags.digital flexible packaging