Top-line packagingTel: +86 188 2689 9458

Top-line packagingEmail: info@toplinepackaging.com

Top-line packaging
Top-line packaging

How to identify PE plastic bags? What are the methods?

source:other news release time:2022-12-19 Hits:    

  Vacuum zipper bag

  In daily life, many PE plastic bags are used to package products, but there are many types and names of packaging materials. When we need to use PE plastic bags, how do we identify them? PE film is widely used to make plastic bags, plastic films and milk pails. Its name is also polyethylene, which is resistant to a variety of organic solvents, acid and alkali corrosion, but not antioxidant acids, such as nitric acid. Polyethylene will be oxidized in oxidizing environment. Polyethylene can be considered transparent in the film state, but in the presence of a large number of crystals in the block, it will be opaque due to strong light scattering. The degree of crystallization of polyethylene is affected by the number of its branches. The more branches, the more difficult it is to crystallize. The melting temperature of polyethylene crystal is also affected by the number of branches and chains, which are distributed from 90 ℃ to 130 ℃. The more branches and chains, the lower the melting temperature. Polyethylene single crystals can usually be prepared by dissolving high-density polyethylene in xylene at temperatures above 130 ℃.

  Structural formula of PE plastic bag: - CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2 The simplest way to identify PE plastic bag is as follows:

  1. Cut a small piece and put it in water. Floating on the water is PE

  2. When lit, PE smells like a candle

  3. It seems that the PE plastic bag is transparent

  4. PE plastic bag is smooth and comfortable to the touch.

  5. It's hard to break because it's pulling


Read recommendations:

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

wine bag in box maker

reusable Snack food bag Production

Unlock the Potential of Paper IBC: The Ultimate Packaging Solution

How to check the shape of the vacuum bag?

Popular recommendation

125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve

China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag

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

spout pouch bags Factory

bag in box Factory

flexible packaging bags

biodegradable clear mailing bags sales

pet food bag totes custom

juice bag in box Manufacturing

smart spout pouch Solution

How to fold a gift box? Let the person receiving the gift feel your good intentions

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

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

The production process of sterile bags

What are the composition of plastic bags?coffee packaging plastic bag wholesale

The printing principle of composite bags.eco friendly spout pouches custom

Various common sense of plastic packaging bags.valve plastic coffee bag

Test standards for frozen food packaging.petco free dog food bag Manufacturing

Classification of liquid bags

Liquid flat mouth filling bag

What raw materials are used for making plastic bags?coffee packaging plastic bag

Where are OPP plastic bags often used?

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

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

The manufacturer of customized plastic food packaging bags tells you these points to pay attention t

The role of a vacuum packaging bag.vacuum sealer bags for food

What is easy to tear film? Which products are suitable for easy tearing film?

Analyzing the Factors Influencing the Yield of Fruit Juice Bags.drink pouches with spout

Paper plastic composite bag.beverage bag manufacturers

What are the requirements for making food packaging bags in general.petco free dog food bag wholesal

Share:

Email

Wechat Whatsapp

Leave Your Message