Composite preform and method for producing the same, composite container and method for producing the same, and composite container product loaded with beer
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United States of America Patent
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Jan 9, 2024
Grant Date -
N/A
app pub date -
Aug 4, 2021
filing date -
Feb 23, 2017
priority date (Note) -
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Abstract
To provide a composite preform that can ensure that worsening of the appearance of a surface of a plastic member caused by near-infrared heating prior to blow molding is effectively prevented and that an inner preform is efficiently heated. The composite preform of the present invention includes a preform and a heat-contractive plastic member, the preform including a mouth part; a trunk part linked to the mouth part; and a bottom part linked to the trunk part, and the heat-contractive plastic member being disposed so as to surround the outside of the preform and including at least a colored layer that contains a resin material and a colorant, wherein the heat-contractive plastic member has a near-infrared transmittance of 50% or higher.
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