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:

Kraft paper pouch

pouch with handle Solution

mulberry mini pouch with handle company

Is it normal for frozen food packaging bags to bulge?

Various materials for anti -static plastic packaging bags.pint zipper vacuum bag Vendor

Popular recommendation

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

Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag

Coffee & Tea pouch

digital flexible packaging price

spout pouch packaging bags Factory

bag in box direct sales

coffee bags with valve and zipper

Flexible packaging film roll Packaging Manufacturing

wine bag in box company

juice bag in box Vendor

The production process and process of vacuum packaging bags

What are the advantages of plastic packaging bags

Efficient protection, easily carry: new choice of liquid packaging bag.juice bag in box company

Understand the color printing technology of packaging bags

How to choose aluminum foil vacuum packaging and transparent vacuum packaging can make customers mor

The advantages and development prospects of aluminum foil bags

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

How to Select the Material of Food Vacuum Packaging Bag

With Spout pouch - a new form of packaging

Coffee bags and coffee

Production precautions for aluminum foil bags.disposable aluminum foil bag

Highlighting characteristics is the focus of our design of facial mask packaging bags.heat seal alum

The Application of Vacuum Packaging Bags and Inflatable Soft Packaging Bags to Food

The savior of the express delivery industry - buffer gas column bags.aluminium spout pouch sales

paper snack food bag supplier.Talking about the Safety of Using Food Packaging Bags

The cause of Vacuum Zipper Bag leak.vacuum zipper bags company

Convenient circulation of packaged food

Several biological base materials for degradable packaging bags.Flexible packaging film roll Product

smart food snack bags wholesaler.How to choose food packaging bags specifically

Folding and winding film of packaging bag

Share:

Email

Wechat Whatsapp

Leave Your Message