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Method of processing synthetic resin tubular body

A technology of synthetic resin and processing method, applied in the direction of flexible tubular container, container, rigid container, etc., can solve the problem of only limited container identification function and so on

Inactive Publication Date: 2013-10-16
YOSHINO KOGYOSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the method disclosed in Patent Document 2 is to form an embossed concave-convex pattern on the outer surface within the thickness range of the cylindrical body, and is limited to the identification function of the container, etc.

Method used

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  • Method of processing synthetic resin tubular body
  • Method of processing synthetic resin tubular body
  • Method of processing synthetic resin tubular body

Examples

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Embodiment Construction

[0068] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0069] Figure 3 to Figure 5 This is an example of the tubular container of the present invention produced by the first embodiment of the synthetic resin tubular body processing method of the present invention. image 3 and Figure 4 is the front view and side view showing the bottom unsealed state, Figure 5 It is a side view which shows the state in which the bottom seal part 7 was formed in the bottom part, and the inner diameter of this container is 25 mm, and the length is 150 mm.

[0070] like image 3 As shown, the tubular container 1 consists of a tubular body 2 and a head 3, wherein the tubular body 2 is cylindrical and is used to form a body 6; the head 3 consists of a shoulder 5 and a mouth 4, which are formed by injection molding Or compression molding, the head 3 is mounted on one end of the tubular body 2 and integrated, and after filling ...

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Abstract

The technical problem of this invention is to establish a method of processing a synthetic resin tube, in which the shape of a part of the tube wall is changed to form easily an attractively hollowed and / or raised portion in a fairly wide area of the tube wall. The object of this invention is to provide a tubular container having excellent decorativeness, appearance, or functionality that has never been found before. A method of processing a synthetic resin tube comprises utilizing a mandrel having a mold portion, which has at least a shape selected from a hollowed shape, a raised shape, and a hollowed and raised shape formed in a part of outer surface of the mandrel, and which is also provided with small through-holes in this mold portion; inserting a bottomed cylindrical mandrel into a synthetic resin tube, while bringing the inner wall of the tube in contact with the mandrel; heating and softening the tube in the portion facing the mold portion; deaerating the tube via a central opening and the through-holes to mold the softened portion of the tube in a manner similar to vacuum molding; and forming in the tube wall at least one of the portions selected from a hollowed portion, a raised portion, and a hollowed and raised portion.

Description

[0001] This application is a divisional application of a Chinese invention patent application with the application number of 200480000712.8 and the invention titled "Processing Method of Synthetic Resin Tubular Body and Tubular Container". technical field [0002] The present invention relates to a method of forming concavo-convex portions on the body of a container, and a tubular container having concave-convex portions formed thereon, wherein the container is a cylindrical container made of synthetic resin, such as a tubular container for accommodating food, toothpaste, cosmetics, and the like. Background technique [0003] In the prior art, as a container for extruding a certain amount of viscous substances such as toothpaste at a time, a tubular container is used. The body of the tubular container is, for example, a cylindrical body obtained by extruding a synthetic resin into a cylindrical shape, or a cylindrical body formed by winding a sheet and bonding both ends there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/10B29C51/36B29C51/08B65D35/02
CPCB29C2791/006B29C67/0048B29K2021/00B29C2791/001B29C51/085B29C51/06B65D35/02Y10T428/1352B29C51/10B29C51/36
Inventor 岛田伸治太田淳士今泉保幸
Owner YOSHINO KOGYOSHO CO LTD
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