Food packaging bags are a type of outer packaging design. Such bags are often used in our daily life. In order to store food more conveniently, while maintaining the freshness of food, this kind of packaging bag came into being. It can be in direct contact with food without affecting the quality of food. Let’s talk about the 6 major testing standards for food packaging bags.
1. Hygiene inspection:
Its hygiene is very important in flexible packaging, because it is in direct contact with the food we eat every day, so the primary standard for its inspection is hygiene.
Including evaporation residue (acetic acid, ethanol, n-hexane), consumption of potassium permanganate, heavy metals, decolorization test. Evaporation residues reflect the possibility of residues and heavy metals precipitated out of food packaging bags when they encounter vinegar, wine, oil and other liquids during use. Residues and heavy metals will have adverse effects on human health. In addition, residues will also directly affect the color and aroma of food. , taste and other food quality.
2. Safety inspection:
The raw materials and additives used in the bags must meet the relevant national quality requirements, and ensure that they will not cause poisoning and other harm to the human body.
3. Degradability test:
The degradation type of the product can be divided into photodegradation type, biodegradation type and environmental degradation type. If the degradation performance is good, the bag will break, differentiate and degrade by itself under the combined action of light and microorganisms, and eventually become debris, which is accepted by the natural environment and avoids white pollution.
4. Appearance inspection:
The appearance of the food packaging bag should be smooth, without scratches, burns, bubbles, oil breakage and wrinkles, and the heat sealing should be smooth and free of false sealing. The film shall not have cracks, pores and composite layer separation. No impurities, foreign objects and oil stains and other pollution.
5. Specification inspection:
Its specification, width, length and thickness deviation should all be within the specified range.
6. Physical and mechanical performance inspection:
That is, the quality of the bag is better. Physical and mechanical properties testing includes tensile strength and elongation at break. It reflects the ability of the product to stretch during use. If the product has poor stretching ability, it will be prone to rupture and damage during use.
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