Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging
Top-line packaging
Top-line packaging Home  >  NEWS  >  Industry News

Snack food bag bulk wholesale.Learn about composite materials for food packaging bags

source:Industry News release time:2023-11-13 Hits:    

1-230302114454F3.png

Generally speaking, the basic structure of composite materials is that the outer layer of composite packaging materials should be materials with high melting point, good heat resistance, less scratches and burrs, good printing function, and good optical function. Commonly used materials include paper, aluminum foil, fiberglass, polycarbonate, nylon, polyester, polypropylene, etc.

The inner layer materials should have functions such as heat sealing, good adhesion, odorless, non-toxic, oil resistant, water resistant, and chemical resistant, such as heat-resistant plastic materials such as polypropylene, polyethylene, and polyvinylidene chloride. The middle layer of composite materials with three or more layers generally uses materials with good functions such as blocking gas and moisture, and shielding light, and high mechanical strength, such as aluminum foil, polyvinylidene chloride, cellophane, paper, polyethylene, etc.

Adhesive is applied between layers for bonding. Generally, solvent based thermosetting polyurethane adhesive is used between the outer layer and the middle layer, and modified polypropylene lotion adhesive or specially modified carbonyl propylene containing resin is used between the inner layer and the middle layer. The outer layer adhesive requires high bonding strength, simple process, and low cost; The adhesive used for the inner layer requires high temperature resistance, high peel strength, non-toxic, tasteless, and does not affect the nutritional composition of the food, which can effectively maintain the color, aroma, and taste of the food.

In recent years, foreign countries have developed a uniform coating agent on the surface of the substrate film to improve the airtightness, oil resistance, and chemical stability of packaging materials, making it suitable for various food packaging. Commonly used coating agents include polyvinylidene chloride resin and polypropylene polyvinylidene chloride resin. The methods of coating include single-sided coating and double-sided coating.


Read recommendations:

Custom Print Side Gusset Coffee Pouch Black Matte Coffee Beans Packaging With Valve 

bag in box company

mulberry mini pouch with handle manufacture

How to Select the Material of Food Vacuum Packaging Bag

Use degradable plastic bags to reduce ecological pollution

Popular recommendation

Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa

Custom Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box

Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch

spout pouches price

spout pouch machine distributors

smart food Snack food bag

spout pouch bag custom

valve plastic coffee bag

bag in box 3L,5L,10L

coffee bean bag Manufacturing

sideguesst bag for coffee bag distributors.The number of packaging layers of moon cakes and Zongzi s

Can the vacuum bag be reused?

Whether biodegradable plastic bags can contact food!

Introduce you how to use Zipper Vacuum Sealer Bag.zipper vacuum sealer bag

Wine box packaging customization process and specific production process

How to choose a coffee bag?

Composition of liquid bags

Analyze the composition of plastic packaging bags

What are the inspection standards for food packaging bags?

The origin of aluminum foil bags!disposable aluminum foil bag

Introduce the usage of Vacuum packing bag

Principles and how to use medical sterilization packaging bags.coffee pouch with valve packaging

What are the advantages of sterile packaging bags.retort pouch specification

Understand the tips for using commonly used zipper bags

Market size of self-supporting bag industry.custom standing pouch

aluminum foil bags for grilling manufacturer.Moisture and anti-static aluminum foil packaging bags h

Why can aluminum foil food packaging bags develop so quickly?

Analyze the design requirements for food packaging bags

Knowledge of using food packaging bags.paper snack food bag distributors

Briefly describe the development status of the box in bag industry in China.bag in box company

Share:

Email

Wechat Whatsapp

Leave Your Message