Title:
POLYESTER PREFORM AND BOTTLES THEREOF
Document Type and Number:
Japanese Patent JP2020142465
Kind Code:
A
Abstract:
To provide a bottle capable of improving heating efficiency of the preform while reducing environmental impact and cost.SOLUTION: The preform 100 is a polyester preform molded into a bottomed tubular shape using a virgin material of polyester resin and a mechanical recycling material, and molded into a bottle by biaxial stretch blowing. The preform 100 has a multi-layered structure comprising an outer layer 111 and an inner layer 112 comprising virgin material, and an intermediate layer 113 provided between the outer layer 111 and the inner layer 112 and comprising a mechanical recycling material. The preform 100 has a difference value greater than 0.0 and less than 3.0 by subtracting the L* value in the portion corresponding to the body 5 of the bottle 1 from the L* value of the L*a*b* system in the portion corresponding to the mouth 3 of the bottle 1.SELECTED DRAWING: Figure 3
Inventors:
TAJIMA TOMONARI
HIKICHI NORITAKA
ENDO TAKAHIRO
YAMAZAKI YU
SATO YUICHI
HIKICHI NORITAKA
ENDO TAKAHIRO
YAMAZAKI YU
SATO YUICHI
Application Number:
JP2019041918A
Publication Date:
September 10, 2020
Filing Date:
March 07, 2019
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD
International Classes:
B29C49/22; B29C49/06; B32B1/02; B32B27/36; B65D1/02; G01J3/50
Domestic Patent References:
| JPH0295631U | 1990-07-30 | |||
| JPH1177744A | 1999-03-23 | |||
| JP2011256328A | 2011-12-22 | |||
| JP2017202853A | 2017-11-16 | |||
| JP2004148616A | 2004-05-27 |
Attorney, Agent or Firm:
Ebisu International Patent Office