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 manufacturer
Packaging bag development history
stand up coffee bag with zipper manufacture.What is the difference between textured vacuum bags and
Popular recommendation
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
Pouch with handle
Spout pouch
coffee tea pouch price
stand up spout pouch manufacturers
spout pouch packaging bags Production
pouch with handle manufacturer
refillable spout pouches manufacturer
bag in box maker
biodegradable spout pouches Manufacturing
In what areas is the bag-in-box industry used?
Method of using electrostatic adsorption for thermal shrinkage of plastic packaging.Vacuum zipper ba
Sterilization classification and principle of sterile bags
Food packaging bag detection
What are the advantages of liquid chemical packaging bags in transportation?
The difference between liquid bags and regular packaging bags
Qualified packaging: Face is good, but lining is good.
What are the liquid packaging methods?
Advantages of coffee bags
Liquid flat mouth filling bag
What are the advantages of Plastic Bubble Mailer Bags.biodegradable clear mailing bags Solution
What materials should be used for tea bags
Folding plastic steel packaging belt for packaging bag
Suitable plastic packaging bag.stand up coffee packaging
What are the differences between raw materials of degradable packaging bags and fully degradable pac
The advantages and disadvantages of vacuum packaging bags using composite technology
digital printing flexible packaging Factory.What is UV printing for colored packaging bags
Advantages of using plastic packaging bags.flexible pouches price
What is the difference between cooking bag and boiling bag
Vacuum bags have those versatility