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:

Bag-In-Box

biodegradable clear mailing bags supplier

bag in box custom

What is the difference between plastic packaging bags and paper bags

What to pay attention to when designing food packaging bags.paper snack food bag distributors

Popular recommendation

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

PET food bag

Bag-In-Box

spout pouch bag distributors

new super pouch manufacture

recyclable spout pouches sales

coffee grinds pouches custom

smart food Snack food bag distributors

Flexible packaging film roll Packaging Manufacturing

zip lock bag for coffee price

What are the special properties of aluminum foil bags explained by the manufacturer of aluminum foil

Coffee bags and coffee

How to inflate the packaging bag of puffed food?

Introduction to liquid packaging methods

Food packaging bag detection

How long can cooked food vacuum packaging bags last?

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

Food packaging bags have chemical hazards

Food packaging bag.plastic pouches for food packaging

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

mini pet food bag maker.What are the steps for making food packaging bags

Explanation on Different Materials and Valves of Bags in Boxes.bag in box packaging maker

Folding packaging bag

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

kraft paper pouch package sales.Teach everyone how to choose food packaging bags

Is the desiccant in the food bag toxic?

Tell you why there is a heat sealing layer on the composite packaging film.stand up valve coffee bag

How long can cooked food vacuum packaging bags last?

What are the issues to pay attention to when customizing plastic packaging bags

aluminium retort pouch Solution.How to judge the quality issues of plastic packaging bags

Share:

Email

Wechat Whatsapp

Leave Your Message