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

recyclable spout pouches Factory

spout pouch bags price

The production process of sterile bags

Is the food vacuum packaging bag resistant to high temperature?

Popular recommendation

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

3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve

Super pouch

Pouch with Handle Customize

spout pouch packaging bags Production

spout pouch bag custom

wine bag in box Production

grinds coffee pouch price

flexible packaging distributors

packaging spout pouch manufacturer

Guide the use of plastic packaging bags

How did the bag pattern come from?

What are the general forms of beverage and food liquid bags?

The role of the coffee bag

Vacuum packaging bag.food vacuum bag

Do you know these characteristics of the bag in the box?

The Revolution in Liquid Packaging

What does the three-side seal of the bag mean?

stand up pouch coffee packaging wholesaler!How to order universal vacuum packaging bags?

How to determine whether the food packaging bag is regular?

The use and attention of food -grade vacuum packaging bags.vacuum zipper bags for clothes wholesaler

Packaging and processing technology of bag in box.bag in box distributors

Introduce the information of Vacuum Zipper Bag to you.pint zipper vacuum bag Factory

Analysis on the selection of food packaging bags.pet travel food bag Manufacturing.petco free dog fo

Sewing intensity of plastic packaging bags.aluminum foil bags for cooking manufacture

Why are biodegradable plastic bags so popular with people?

kraft paper pouch bags supplier.Understand the safety performance of food packaging bags

Why do DOG Food Bag pursue materials?petco free dog food bag Manufacturing

Usage of vacuum bags.aluminum foil bag large

Meaning of barcode number of food packaging bag.

Share:

Email

Wechat Whatsapp

Leave Your Message