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:

Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S

kraft spout pouch custom

super pouch tool bag Processing

How to test the packaging bag

Is the color of food packaging bags fading?

Popular recommendation

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

Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va

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

pouch with handle maker

reusable Snack food bag Processing

Spout pouch Vendor

recyclable spout pouches custom

biodegradable spout pouches distributors

refillable spout pouches

super pouch tool bag sales

coffee bag with one way valve distributors.The thickness of each layer of the composite packaging ba

Christmas coffee bag(R1)

Precautions for use of degradable plastic bags

How to deal with the discoloration of food packaging bags?

What is the difference between plastic packaging bags and paper bags

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

Does summer cold beer go well with Bag-In-Box packaging?

How to determine whether the food packaging bag is regular?

Medical sterilization packaging bag

printed snack food bags price!Introduction to the Function of Food Packaging Bags

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

Discussion on the Use of Fruit Juice Bags in Beverage Packaging.valve plastic coffee bag

Differences between degradable plastic bags and ordinary plastic bags

Six Standards that Vacuum Packaging Bag Suppliers Should Adhere to.Vacuum zipper bag company

kraft paper spout pouch.Packaging bag classification

How to detect the quality of composite aluminum foil bags?aluminum foil bags for grilling Manufactur

Vacuum bags have those versatility

Food safety is the bottom line of the food production and packaging industry.aluminium spout pouch d

Aluminum foil bag basic knowledge

Plastic bags can be degraded and environmentally friendly

Share:

Email

Wechat Whatsapp

Leave Your Message