• 专利标题:   High-transparent and high-strength polyethylene heat-shrinkable film useful for packaging bottle-packed beverage, comprises e.g. first layer (comprised of low-density and metallocene polyethylene), second layer, third layer and fourth layer (comprised of high density polyethylene).
  • 专利号:   CN115923289-A
  • 发明人:   LIU Z, LI R, LIU S
  • 专利权人:   QINGDAO KAIMEIKE RUBBER PLASTIC CO LTD
  • 国际专利分类:   B29D007/01, B32B027/08, B32B027/18, B32B027/32, B32B033/00, B65D065/40, C08K005/10, C08L001/02, C08L023/06, C08L023/08, C08L005/08, C08L069/00, C09D175/04, C09D007/61, C09D007/62
  • 专利详细信息:   CN115923289-A 07 Apr 2023 B32B-027/32 202338 Chinese
  • 申请详细信息:   CN115923289-A CN11594111 13 Dec 2022
  • 优先权号:   CN11594111

▎ 摘  要

NOVELTY - High-transparent high-strength polyethylene heat-shrinkable film comprises an A layer, a B layer, a C layer, a D layer and an E layer, which are sequentially attached to each other from inside to outside, the A layer and the E layer comprises 30-50 pts. wt. low density polyethylene, 15-25 pts. wt. metallocene polyethylene, 30-50 pts. wt. linear low density polyethylene, the B layer, C layer and D layer comprises 3-7 pts. wt. low density polyethylene, 40-80 pts. wt. high density polyethylene and 30-40 pts. wt. metallocene polyethylene. USE - The high-transparent high-strength polyethylene heat-shrinkable film is useful for packaging bottle-packed beverage, namely inebriant, pop can, set package of mineral water. ADVANTAGE - The film: has high transparency, good mechanical strength, stable stacking, and the inner part is not easy to be atomized when packing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the high-transparent high-strength polyethylene heat-shrinkable film, comprises adding A layer, B layer, C layer, D layer and E layer of raw material, and respectively mixing uniformly, according to the A layer, B layer, C layer, D layer and the E layer at the thickness ratio of 1:1:1:1:1, melting each layer raw material, blowing, cooling and shaping, pulling and stretching, cutting and rolling to obtain the high-transparent high-strength polyethylene heat-shrinkable film.