Tel: +86 188 2689 9458
source:other news release time:2022-11-16 Hits:
1. The first thing to see is whether the appearance of the plastic bag has the "food" logo. Usually, this sign should be on the front of the packaging bag, at a conspicuous position. Secondly, it depends on the color. Generally speaking, most plastic bags with color use recycled materials from waste plastics, which cannot be used to contain food. For example, some food markets use black plastic bags to hold fish, shrimp and other aquatic products or meat, which were originally used to hold garbage, and consumers should avoid using them. After that, check whether the plastic bag has impurities. Put the plastic bag in the sun or light to see if there are black spots and holes. The plastic bag with impurities must be made of waste plastic.
2. Smell the plastic bag to see if it smells and if it makes people feel sick. Qualified plastic bags should be odorless, while unqualified plastic bags will have various tastes due to the use of additives.
3. The qualified plastic bag has a certain strength and will not be broken once torn; The unqualified plastic bags are often of poor strength and easy to crack due to impurities.
4. Qualified plastic bags will make a clear sound when shaking; Unqualified plastic bags often make a dull noise.
5. Put the plastic bag in the water, and press it to the bottom with your hand. Wait a moment. The one that emerges from the water is a non-toxic plastic bag, and the one that sinks to the bottom is a toxic plastic bag.
6. Touch the surface of the plastic bag with your hand. It is smooth and non-toxic. If the color is mixed, it is sticky and astringent when touched, it is toxic. 7. Burning: cut off a corner of the plastic bag, put it on the fire and burn it. The non-toxic fire will burn immediately. After leaving the fire, it will continue to burn, and a yellow flame will appear. The melting mold will drop down like a candle, emitting a paraffin smell; It is poisonous, not easy to burn, and presents a green flame after burning, and has a foul smell.
Read recommendations:
reusable Snack food bag wholesale
Packaging bag classification for liquid products
flexible packaging film thickness wholesale.Sharing of Common Bag Types in Food Packaging Bags
Popular recommendation
Aluminum foil bag
Spout pouch
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
spout pouch bags manufacture
juice bag in box
spout pouch packaging distributors
pouch with handle sales
customization Pouch with Handle
pet food bag sealer price
new super pouch Processing
Requirements for fertilizer packaging bags.
The origin of aluminum foil bags!disposable aluminum foil bag
Customized packaging bags according to product characteristics
The Versatility of Bag-in-Bag Liquid Packing Products and Filling Machines
What is the difference between vacuum bag and aluminum foil bag
What are the packaging machinery and equipment?
The quality of rice vacuum packaging is very important
About the thickness of vacuum packaging bag
What is the function of the hole on the coffee bag
Paper packaging
Talk about the future of food packaging.stand up pouch manufacturers near me
What is the shelf life of the bag in the box.bag in box price
What are the reasons for the continuous rise in the BIB market.custom stand up pouch
The printing principle of composite bags!
How to design a packaging bag according to the product?recyclable retort pouch wholesaler
Difference between high-temperature vacuum bag and freezing vacuum bag
Requirements and standards for medical packaging bags
Classification of leather packaging.Flexible Packaging Film company
bag in box packaging supplier.What to pay attention to when making food packaging bags
The significance of bags in sterile boxes