Tel: +86 188 2689 9458
source:other news release time:2023-11-06 Hits:
In our daily life, plastic packaging bags play a very important role and have many styles. The quality of plastic packaging bags circulating on the market today is also mixed. When we go shopping, what aspects should we pay attention to? Let's follow the editor to learn about the selection items together?
Introduction to Quality Matters of Plastic Packaging Bags: There are strict standards for determining the thickness of plastic packaging bags, especially for food packaging bags. When selecting, it is necessary to select plastic packaging bags produced by legitimate manufacturers with qualified marks. Check the plastic bags in front of the light to see if they are clean. Qualified ones are all clean, and defective ones will show dirt.
As long as the thickness of a single surface meets the standard, it is not necessarily the thicker the better. After "hands-on" judgment, good plastic packaging bags have flexibility, a sense of lubrication when touched, and the surface seems to have wax, while poor quality plastic packaging bags have a sticky feeling; After "listening to the sound", grab one end of the plastic bag with your hand and shake it vigorously. It is announced that the quality is better for those with a loud sound, but if the sound is dull, there may be quality issues.
Chemical reaction discrimination is determined by "fire" burning. Plastic packaging bags with good quality are flammable, with the top of the flame being yellow and some parts being cyan. When burned, they drip like candle tears and have a white wax taste; Plastic packaging bags with poor quality are not flammable and will extinguish immediately after leaving the fire. The top of the flame is yellow, and the bottom is green. They can soften and wire, and announce the pungent smell of hydrochloric acid.
Read recommendations:
What is the difference between vacuum bag and aluminum foil bag
Popular recommendation
Spout pouch
BIB Bag-in-box dispenser with butterfly valve vitop for drinking water wine juice
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
spout pouches
spout pouch serves Factory
spout pouch bag Factory
mulberry mini pouch with handle custom
spout pouch bags supplier
Spout pouch custom
custom coffee bags with valve
Packaging airbag inflation
Classification of liquid bags
What are the requirements for dried fruit packaging bags in food packaging bags.fruit and vegetables
How To Seal A Spout Pouch- The Complete Guide
What is a compound bag
What does the three-side seal of the bag mean?
What are the advantages of the bag in the BIB box.bag in box 5l
bag for food packaging.What are the application scope of composite packaging bags
Customized packaging bags according to product characteristics
ordering flexible packaging film roll sales.The shortcomings of environmental bags
Can you distinguish frozen vacuum packaging bags and quick -frozen vacuum packaging bags?vacuum seal
mini Snack food bag wholesaler.How to identify packaging bags that are environmentally friendly and
Product packaging function.bag in box 3L,5L,10L
Definition of Leather Packaging.disposable aluminum foil bag
composite packaging bag
The main core research content of the bag in box industry.bag in box sales
digital printing flexible packaging distributors.What are the uses of composite film packaging bags
Packaging bag manufacturer introduces production details of Vacuum packing bags
aluminum foil bags for cooking Manufacturing.Fully automatic production line for aluminum foil packa
Do you know what a facial mask bag is?