Title:
PREFORM, PLASTIC BOTTLE AND MANUFACTURING METHOD OF PLASTIC BOTTLE
Document Type and Number:
Japanese Patent JP2023084381
Kind Code:
A
Abstract:
To provide a preform, a plastic bottle and a manufacturing method of plastic bottle that can reduce environmental impact by plastic bottles.SOLUTION: A preform 23 includes a mouth part 26, a body part 27 and a bottom part 28 . The body part 27 has a neck part 27a, a body middle part 27b, and a reduced diameter part 27c. The neck part 27a, the body middle part 27b and reduced diameter part 27c include an outer layer 25 comprising mechanically recycled polyester. The body middle part 27b and reduced diameter part 27c are positioned inside the outer layer 25 and include an inner layer 24 comprising virgin polyester, biomass-derived polyester, or chemically recycled polyester. In at least a portion of the reduced diameter part 27c, the thickness of the inner layer 24 gradually decreases from the body middle part 27b side toward the neck part 27a side.SELECTED DRAWING: Figure 2
Inventors:
EGUCHI MAKOTO
SEKINE AKITOMO
SEKINE AKITOMO
Application Number:
JP2021198537A
Publication Date:
June 19, 2023
Filing Date:
December 07, 2021
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
B29B11/08; B65D1/02; B29C49/06; B29C49/22; B32B27/00; B32B27/36
Attorney, Agent or Firm:
Yukitaka Nakamura
Manabu Miyajima
Yukihiro Hotta
Daisaku Ishikawa
Manabu Miyajima
Yukihiro Hotta
Daisaku Ishikawa