Synthetic-resin laminated bottle body, injection molding device and method for forming laminated preform

A synthetic resin, preform technology, applied in packaging, bottles, wrapping paper, etc., can solve the problems of interlayer peeling, damage to appearance, etc.

A synthetic resin, preform technology, applied in packaging, bottles, wrapping paper, etc., can solve the problems of interlayer peeling, damage to appearance, etc.

CN101801641AActive Publication Date: 2010-08-11YOSHINO KOGYOSHO CO LTD
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  • Synthetic-resin laminated bottle body, injection molding device and method for forming laminated preform
  • Synthetic-resin laminated bottle body, injection molding device and method for forming laminated preform
  • Synthetic-resin laminated bottle body, injection molding device and method for forming laminated preform

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] Hereinafter, a biaxial stretch blow molding synthetic resin laminated bottle body, an injection molding device, and a method of molding a laminated preform using the injection molding device according to the present invention will be described with reference to the drawings.

[0077] figure 1 , figure 2 It is a figure showing the first embodiment of the synthetic resin laminated bottle body of the present invention, figure 1 is the main view, figure 2 is along figure 1 The top sectional view indicated by the A-A line in . The bottle body uses PET resin as the main material resin, and is a so-called pressure-resistant PET bottle used for beverages containing carbonated components. A portion 205 and a bottom 206 protruding from a plurality of legs and formed in a so-called petal shape.

[0078] Such as figure 2 As shown in the top cross-sectional view of the bottle body 201, the bottle body 201 has the following stacked structure within a predetermined height ...

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Abstract

The invention provides a synthetic-resin laminated bottle body, an injection molding device and a method for forming laminated preform. To minimize delamination problem with a laminated bottle body produced by biaxial stretch blow molding. A principal method for solving the problem with the laminated bottle body, produced by biaxial stretch blow molding, comprises laminating an intermediate layer between base layers, extending a plurality of longitudinal strip coupling portions, where the base layers are laminated in a directly deposited state on the opposite sides of the intermediate layer, in a region with a predetermined height, in the direction of the central axis in parallel with each other in the circumferential direction, providing as required, a plurality of circumferential strip coupling portions, where the base layers are laminated in a directly deposited state on the top and bottom surfaces of the intermediate layer, in parallel with each other in the direction of the central axis, and dividing the intermediate layer by the longitudinal strip coupling portions and the circumferential strip coupling portions.

Description

technical field [0001] The present invention relates to a synthetic resin laminated bottle body formed by biaxial stretch blow molding with an intermediate layer laminated thereon, a method for forming a laminated preform as a primary molded product thereof, and an injection molding apparatus for forming the preform . Background technique [0002] Bottles made of polyethylene terephthalate (hereinafter abbreviated as PET) resin and the like and formed by biaxial stretch blow molding are used in various fields such as beverages, food, and cosmetics. use. In particular, for applications that require gas barrier properties, a bottle body in which a gas barrier resin such as nylon-based resin or ethylene-vinyl alcohol copolymer resin is laminated as an intermediate layer on PET resin as a main material resin is used. [0003] Patent Document 1 describes a method for molding a laminated bottle formed by biaxial stretch blow molding in which such a gas barrier resin is laminated...

Claims

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Application Information

Patent Timeline
11 Aug 2010
Publication
CN101801641A
IPC
B29C49/22; B29B11/08; B29C49/06; B29C49/08; B65D1/00; B65D1/02; B29L9/00; B29L22/00
CPC
B29B2911/14326; B29B2911/14333; B29B2911/1402; B29B2911/14066; B29B2911/141; B29B2911/1412; B29C45/1603; B29B2911/1408
Inventors
丰田保; 细越山广