Tel: +86 188 2689 9458
source:other news release time:2022-11-14 Hits:
1. Single film:
It is required to be transparent, non-toxic, impermeable, with good heat sealing and bag making properties, heat and cold resistance, mechanical strength, grease resistance, chemical resistance and adhesion resistance. It can be prepared by extrusion blowing, extrusion tape casting, calendering, solvent tape casting and other methods.
The heat sealing performance of the monolayer film is not only related to the relative molecular weight distribution and molecular disproportionation of the resin, but also related to the process conditions during film preparation, such as temperature, cooling rate, blowing ratio, etc.
2. Aluminum foil:
99.5% pure electrolytic aluminum is melted and pressed into foil by calender, which is ideal as the base material for soft plastic packaging. It has good gas barrier, water vapor barrier, light shielding, thermal conductivity and shielding.
3. Vacuum evaporation aluminum film:
Under high vacuum, the metal with low boiling point, such as aluminum, is melted, vaporized and stacked on the plastic film on the cooling drum to form an aluminized film with good metallic luster. When the aluminum plating thickness reaches certain requirements, the oxygen resistance and moisture resistance of the substrate can be greatly improved. The substrate shall be corona treated and coated with sol.
4. Silicon coating:
It is also called ceramic coating. No matter how high the temperature and humidity are, the performance will not change. It is suitable for making high-temperature cooking bags. There are two kinds of coatings: one is silicon oxide SiOx, the smaller the X is, the better the barrier is; The second is Al2O3. The coating methods include physical evaporation and chemical evaporation.
5. Gluing (dry/wet) composite film:
Single layer films have certain advantages as well as inherent disadvantages. They are often difficult to meet a variety of packaging performance requirements. Multiple layers of different substrates can complement each other and give full play to their comprehensive advantages.
6. Extrusion coating composite film:
On an extruder, thermoplastic is streamed on the paper, foil, and plastic substrate to be covered through a T-shaped die, or the extruded resin is used as the intermediate binder, and other film substrates are pressed together while hot to form a sandwich type composite film.
In order to improve the composite fastness, it is necessary to conduct corona treatment and apply anchor paint. The extruded composite film can be reverse printed, the thickness of each layer can be precisely controlled, the residual amount of solvent is small, and the price is cheap.
7. Co extruded composite film:
Two or three extruders are used to use a common composite die to laminated several compatible thermoplastics to produce multilayer films or sheets. Co extruded composite film can only be printed on the front, not on the back.
It is difficult to control the thickness of each layer compared with dry composite film and extruded cast film. No adhesive and anchor paint are used, which is pollution-free and sanitary. Co extruded composite membrane has the lowest cost.
8. High barrier film:
It is a multilayer structure film. It can effectively prevent the infiltration of oxygen and other gases, thus causing the propagation of microorganisms; Prevent the wrapped articles from oxidation; Prevent the outflow of fragrance, solvent, etc.
The commonly called high barrier and high-strength materials, such as EVAL, PVDC, PET, PAN, self PA, can be made into packaging films, which can significantly extend the shelf life of food, or replace the traditional rigid packaging materials with good barrier performance.
Read recommendations:
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
Popular recommendation
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
bag in box company
pouch with handle Processing
biodegradable spout pouches sales
kraft paper spout pouch manufacture
super pouch tool bag wholesale
mulberry mini pouch with handle sales
kraft coffee bags with valve
Bag-In-Box: Revolutionizing Liquid Packaging with Innovative Paper Bags
Method of using electrostatic adsorption for thermal shrinkage of plastic packaging.Vacuum zipper ba
Characteristics of food composite bags.flexible packaging film roll pouches Solution
Definition of vacuum packaging
What are the special properties of aluminum foil bags explained by the manufacturer of aluminum foil
What are the packaging forms for beverages and liquid food?
ordering flexible packaging film roll sales.The shortcomings of environmental bags
How to distinguish the quality of OPP card head plastic bag?
Anti -static packaging bag.aluminum foil bags for cooking
ordering flexible packaging film roll price.Where can I find a manufacturer of high-quality food pac
Types of packaging bags
Vacuum is the key to vacuum food packaging bags.Vacuum zipper bag company
Sewing intensity of plastic packaging bags.aluminum foil bags for cooking manufacture
How to design packaging bags according to products
Applicable products for sterile liquid packaging bags..stand up pouch with spout packaging
Explanation on Different Materials and Valves of Bags in Boxes.bag in box packaging maker
Convenient circulation of packaged food
flexible packaging film roll pouches custom.How can we find a good supplier for packaging bags with
What are the conditions for food packaging?stand up pouches for food package
Customized by aluminum foil bag manufacturer.aluminum foil bag large Manufacturing