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:
pouch with handle manufacturer
Popular recommendation
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
Custom Print Side Gusset Coffee Pouch Black Matte Coffee Beans Packaging With Valve
Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging
refillable spout pouches manufacturer
spout pouch machine
stand up Spout pouch manufacturer
packaging spout pouch supplier
aluminium spout pouch manufacture
clear spout pouch distributors
spout pouch machine price
Types of coffee bag
coffee bag with one way valve distributors.The thickness of each layer of the composite packaging ba
Can the use of vacuum bags ensure that the food does not get moldy?
Spout pouch - a new fashion and portable option.aluminium spout pouch sales
The source factory of packaging bags takes you to understand the three side sealing bags and the mid
Retort bags, freeze-resistant vacuum bags
The Revolution in Liquid Packaging
What is the difference between fully biodegradable plastic bags and degradable plastic bags?
Introduce you how to use Zipper Vacuum Sealer Bag.zipper vacuum sealer bag
Packaging airbag inflation
Production process and standards for paper plastic composite bags
What is Spout POUCHES
printed snack food bags Vendor.What to pay attention to when making food packaging bags
Form of food packaging bags.food packaging supply companies
The quality of sterile liquid packaging bags is affected by the following factors.spout pouch manufa
Reasons for aging of liquid packaging bags.flexible packaging pouches
Classification of bags
How to use nylon vacuum bag
What are the issues to pay attention to when customizing plastic packaging bags
How about the weight of the packing bag