Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof
A processing technology and bottle cap technology, applied in the direction of flexible covering, coating, closing, etc., can solve the problems that iron-based oxygen absorbers do not meet food hygiene requirements and cannot be applied to food packaging, etc., to achieve extended applicability, good Hand feeling, water vapor resistance and oxygen absorption effect
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[0009] An oxygen-absorbing and oxygen-blocking type plastic beer bottle cap inner pad material has two layers, one layer is a barrier layer, which is a coating film of polyvinylidene chloride ethyl acetate solution, the second layer is an oxygen-absorbing barrier layer, and the base resin It is ethylene vinyl alcohol copolymer barrier resin EVOH, the ethylene content of ethylene vinyl alcohol copolymer barrier resin is 44%, the oxygen absorbing masterbatch containing oxygen absorbing agent is dispersed in the ethylene vinyl alcohol copolymer matrix barrier resin, pyrimidine and The addition amount of its analogue oxygen-absorbing agent accounts for 0.0007% by weight of ethylene vinyl alcohol copolymer barrier resin; The moisture content of ethylene vinyl alcohol copolymer barrier resin pellet is controlled at 0.1%; Ethylene vinyl alcohol copolymer barrier resin density 1.14 grams / cm 3 .
[0010] The processing technology of the above-mentioned oxygen-absorbing and oxygen-blo...
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