Solid beverage packaging composite film of a few important performance index
solid beverage packaging what are a few important performance index of the composite film, food packaging manufacturer to take you from the barrier property, physical and mechanical properties, health performance three aspects to understand the solid beverage packaging composite membrane.
( 1) Barrier property
in pieces on the blocking ability of oxygen, water vapor in the environment - A through oxygen through quantity and validated through the amount of water vapor, if solid beverage packaging composite membrane oxygen or through a large amount of water vapor, The barrier property is poor) 1 mildew, easily lead to solid beverage Jane, agglomeration, metamorphism. Pieces rubbing resistance - By rubbing oxygen through the quantity or knead after water vapor through the amount of test validate, the change of the contrast before and after rubbing blocking performance, get sample may occur under the action of external force knead barrier property deterioration of the situation, in order to prevent the rub resistance of materials is poor, and lead to a sharp decline in the barrier property of packaging or pinhole, leakage and other problems.
( 2) Physical and mechanical properties
the uniformity of the thickness of the mixer validated by testing the thickness of the packaging one by one, the uniformity of the thickness is to ensure that the packaging material performance good foundation. Pieces
flexibility by tensile, elongation and elastic modulus, pendulum impact resistant to two common experiment, prevent packaging material for big bag pressure and less prone to tolerance, tender, in turn, produce the problem such as broken bag. Pieces
composite fastness by peel strength test to verify one by one, to prevent the occurrence of layered packaging materials due to poor composite fastness problems. Pieces
smooth sex - — By the coefficient of friction test verification, to prevent packaging respectively by the coefficient of friction is too large or too small hard rolling or sliding phenomena.
( 3) Pieces of health performance
organic fluxing agent residues by solvent residual test to verify one by one, if excessive solvent residue, packaging composite film is faulty, in the long-term contact with solid beverage process easy to transfer in the solid beverage, cause its peculiar smell, and affect the health of consumers. Pieces
small molecules is not the content of volatile substances through evaporation residue test to verify one by one, to prevent the material in the packaging more and migration in the solid beverage, affect the quality of the solid beverage and healthy eaters.
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