Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail:

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:    


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:

Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch

spout pouches Solution

bag in box sales

Features and uses of textured vacuum bag

Which foods can be packed in vacuum bags?

Popular recommendation

PET food bag

Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging

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

eco friendly spout pouches price

refillable spout pouches

flexible packaging films Vendor

smart food Snack food bag Processing

kraft spout pouch Processing

custom printed spout pouches

eco friendly spout pouches distributors

There will be several "small holes" on the top of the coffee pouch bags, so what is the my

What is the material of PE bag and what type of packaging bag can be made

When using vacuum packaging bags for food, it is inevitable to encounter difficulties. How to solve

What are the advantages of liquid chemical packaging bags in transportation?

Application of Aluminum Foil Ton Bag.aluminum foil bag price

Causes and solutions for the difficulty of aluminum foil bags.aluminum foil bag large Production

What equipment is needed to produce plastic packaging bags

How much do you know about packaging bags

How to test the packaging bag.

Food packaging bag detection

What are the general methods used for printing packaging bags

Precautions for using Vacuum Zipper Bag.pint zipper vacuum bag

Bag in Box is Developing towards Environmental Diversification.bag in box juice dispenser

pet food bag sealer Manufacturing.Snack food bag bulk Manufacturing.Food packaging bags can play a g

What usage conditions should food packaging bags meet.petco free dog food bag wholesale

Classification and characteristics of vacuum packaging bags.stand up coffee bag Vendor

Analyze the design requirements for food packaging bags

What should be noted when choosing frozen food packaging bags.flexible packaging film roll pouches M

The advantages of Bubble Mailer Bags

Talking about the knowledge of using plastic packaging Snack food bag Manufacturing



Wechat Whatsapp

Leave Your Message