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:

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

Flexible packaging film roll Factory

wine bag in box wholesaler

Aluminum foil vacuum packaging and transparent vacuum packaging.gusset aluminum foil bag distributor

Food aluminum foil bag.aluminium coffee bag

Popular recommendation

Flexible packaging film roll

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

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

custom spout pouches

spout pouch bags manufacture

bag in box manufacturer

aluminium spout pouch sales

kraft paper spout pouch supplier

bag in box packaging supplier

bag in box packaging wholesaler

The design of rice packaging bags should focus on brand concept and color positioning

How long can cooked food vacuum packaging bags last?

Advantages of coffee bags

Super Pouches: Revolutionizing Flexible Packaging for Top-Line Packaging Solutions

Liquid packaging bag: protection fresh, convenient to carry.juice bag in box Solution

Medical sterilization packaging bag

aluminum foil bags for cooking manufacture.Future development trend of facial mask packaging bags

Vacuum packaging bag.food vacuum bag

Advantages of BIB packaging compared to other packaging methods

Introduction to the relevant applications of plastic vacuum packaging bags.paper snack food bag manu

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

mini pet food bag sales.How to control the thickness of food packaging bags

Food packaging bag should be used correctly.Snack food bag bulk

Based on bag -type packaging bags.aluminum foil bag roll manufacture

How biodegradable plastic bags can be degraded

How to correctly select and use food packaging bags

The scope of application of aluminum foil bags is wide

How to remove the air from the bag?

The origin of aluminum foil bags!aluminum foil bags for grilling Manufacturing

The characteristics of a plastic film.coffee packaging plastic bag custom

Share:

Email

Wechat Whatsapp

Leave Your Message