Used for food packaging
plastic bags once appear crack, the quality of the food will be affected, taste and quality is difficult to guarantee.
Packing factory today to tell you what are the cause of food packaging will rupture?
1, food vacuum packaging design.
Such as the net content of contents or volume beyond the scope of soft packaging materials used, in the process of transportation or distribution, slightly affected by external force, torn bags, cracking problems will occur.
Generally as a vacuum bag heat sealing layer, the thickness of the material shall be not less than 50 & mu;
2, the quality of the food vacuum packaging material.
Packaging material quality problems lead to the finished product packing sealing cracking problems, generally focus on the following aspects: (1) physical and mechanical properties of the food packaging & ndash;
Such as the tensile force and pull-apart extension, the puncture strength, pendulum impact resistance and peel strength etc. , can be integrated judgment bags toughness, durable thorn, impact resistance and other physical and mechanical properties conform to the packaging, storage stack and transportation needs.
(2) food packaging sealing & ndash;
Such as blasting pressure test to determine the location of the broken bags and mechanical strength is weak.
Such as heat sealing strength test can determine whether heat sealing strength meet the requirements of food contents, and determined the poor heat sealing parts and the effect of heat sealing the evenness.
Bags durable thorn sex should be considered as the focus of the packaging material combination.
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