Process for treating container preforms with non-contacting plasma treatment
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United States of America Patent
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Jul 18, 2023
Grant Date -
Oct 8, 2020
app pub date -
May 18, 2017
filing date -
May 25, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a process for treating at least one hollow body made of thermoplastic material, such as a preform or a cap, the treatment process successively including at least the following steps: a first step, consisting in treating at least the inside of the hollow body using hydrogen peroxide; a second step, consisting in heating the hollow body; a third step, consisting in treating the hollow body with plasma in order to reduce the concentration of hydrogen peroxide residues. Also disclosed is a plant for manufacturing containers in which the process is carried out in particular by way of a unit for the plasma treatment of the preforms.
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