公开(公告)号：WO2023007370A1

公开(公告)日：2023-02-02

申请号：PCT/IB2022/056890

申请日：2022-07-26

Applicant: FLINT GROUP, LLC

Inventor： VIEIRA DA SILVA, Paulo Roberto ,  HEYLEN, Marc Jacob ,  PRICE, Christopher John ,  REICHERT, Malinda Denise ,  STEBBINS, Matthew Thomas

IPC: C08F2/48 ,  C08F251/02 ,  C09D4/06 ,  C09D5/00 ,  G09F3/10

Abstract: The present invention relates to plastic packaging materials and processes that facilitate recycling of PET (polyethylene terephthalate) containers e.g PET bottles and crystallizable clear PET-g (glycol-modified polyethylene terephthalate) labels such as heat shrinking sleeve labels. Disclosed herein is a clear primer coating for recyclable PET-g shrink-sleeve labels, curable upon exposure to UV light, which is excellent in adhesion, steam-resistance and overprint ability, and which promotes the de-inking of subsequent coloured ink layers under relatively mild caustic wash conditions. Methods of utilizing such a primer coating within flexographic printing processes are also encompassed within the invention.