Tel: +86 188 2689 9458
source:other news release time:2023-11-10 Hits:
The inspection items of food packaging bags (films) are mainly divided into five categories. The appearance must not have defects such as bubbles, perforations, water marks, explosive tendons, poor plasticization, and fish eye stiffness that hinder the use. The standard width, length, and thickness errors should all be within the regular error range.
The physical and mechanical functions include tensile strength and cracking elongation, which reflect the product's ability to withstand tension during use. If this item is not qualified, food packaging bags (films) will simply show cracking and damage during use. The hygiene functions include evaporation residue (acetic acid, ethanol, n-hexane), potassium permanganate consumption, heavy metals, and decolorization tests.
Evaporation residue reflects the possibility of food packaging bags releasing residue and heavy metals when encountering liquids such as vinegar, wine, and oil during use. Residues and heavy metals can have adverse effects on human health. In addition, residue can directly affect the color, aroma, taste, and other edible qualities of food. The degradation function can be divided into photodegradation type, biodegradation type, and environmental degradation type based on the degradation type of the product.
The degradation function reflects the ability of a product to be accepted by the environment after being discarded. If the degradation function is good, the bag (film) will crack, differentiate, and degrade on its own under the combined effect of light and microorganisms, eventually becoming debris and being accepted by the natural environment; If the biodegradability is poor, it will not be accepted by the environment, thus forming "white pollution"
Read recommendations:
spout pouch packaging bags wholesaler
Key Players in Bag-in-Box Industry
How to classify and differentiate composite food bags.bag in box price
Popular recommendation
Eco Friendly Plastic Mylar Pouch Stand Up 50ml 100ml 200ml 250ml Custom Aluminum Spout Pouch
Bag-In-Box
PET food bag
packaging spout pouch Vendor
mini Snack food bag Manufacturing
spout pouch bags manufacture
Flexible packaging film roll manufacturers
smart food Snack food bag wholesale
juice bag in box Manufacturing
coffee pouch design
The printing principle of composite bags!beverage bag manufacturers
Characteristics of food composite bags.flexible packaging film roll pouches Solution
stand up pouch coffee packaging wholesaler!How to order universal vacuum packaging bags?
What equipment is needed to produce plastic packaging bags
The source factory of packaging bags takes you to understand the three side sealing bags and the mid
Key Players in Bag-in-Box Industry
Top-line packaging exhibition
New machine 1L-250L April,17,2023
Differences in the Materials of Composite Packaging Bags
How to distinguish the quality of OPP card head plastic bag?
Food packaging bags.printed snack food bags manufacturer
Advantages of using plastic packaging bags.flexible pouches price
Production method of degradable plastic bag
Folding plastic steel packaging belt for packaging bag
Food packaging bags that need high temperature characteristics.biodegradable clear mailing bags Manu
Why choose to use aluminum foil container bags for inner bags?gusset aluminum foil bag
What does degradable plastic bag mean?
The use of aluminum foil bags.aluminum foil bags for grilling
How to correctly select food Vacuum Zipper Bag.vacuum zipper bags for clothes
Pay attention to these points of daily use of plastic bags.Flexible packaging film roll Packaging Ma