Food packaging bag inspection standard

Food packaging bag inspection standard

Food packaging bag inspection projects are mainly divided into five categories

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    Physical and mechanical properties include tensile strength and elongation at break. It reflects the ability of the product to withstand stretching during use. If this is not acceptable, the food packaging bag is prone to cracking and damage during use.

    Degradation performance can be divided into photodegradation type, biodegradation type and environmental degradation type depending on the type of degradation of the product. The degradation performance reflects the ability of the product to be accepted by the environment after being discarded. If the degradation performance is good, the food packaging bag will break, differentiate and degrade under the action of light and microorganisms, and eventually become debris, which is the natural environment. Accepted; if the degradation is not good, it will not be accepted by the environment, thus forming "white pollution."

    Hygienic properties include evaporation residue, potassium permanganate consumption, heavy metals, and bleaching tests. The evaporation residue is a reflection of the possibility of precipitation of residues and heavy metals when the food packaging bag encounters liquids such as vinegar, wine, oil, etc. during use. Residues and heavy metals may adversely affect human health, and the residue may directly affect the color and fragrance of the food. , taste and other food quality.

    Appearance shall not have any defects such as air bubbles, perforations, water marks, gluten, poor plasticization, and fisheye stiffness. Specifications width, length, and thickness deviation should be within the specified tolerances.