Multi-layer tube of improved physical properties

一种多层结构、子层的技术，应用在层压、家里用具、分层产品等方向，能够解决结构不够刚硬、不足以可靠、管壁施加大局部冲击张力等问题，达到性能优良、减少管壁厚度的效果

Inactive Publication Date: 2006-09-13
EZYTUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Likewise, when such paper tubes are used as packaging for hard, sharp and / or heavy materials (such as metal parts), a major problem is that these items tend to apply a large amount of localized force to the tube wall when they are transferred during transportation. Impact tension
Also, the structure disclosed by Weekers is not rigid enough to be reliably used in this method of packaging, and the only other solution available in the prior art involves the known approach of adding more and more layers of paper to the tube

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In the embodiments discussed below, each embodiment can be understood to be formed by "spiral winding" techniques known in the art.

[0031] In a preferred embodiment, the present invention provides a rigid concrete-forming pipe comprised of a plurality of sub-layers of material, wherein each said sub-layer consists of a woven HDPE mesh disposed between one or more layers of kraft paper. Similar results can be obtained with PP nets. The kraft paper may be bonded to the web in a manner conventional in the art, but it is particularly preferred that the paper is bonded to the web through an intermediate layer of polyethylene (PE).

[0032] An example of a preferred class of web material is supplied by Insulation Solutions, of 127 Dandenong-Frankston Road, Dandenong, Victoria 3175, Australia (Australia) under the name "Metal Wrapping" ("metal wrapping material"), product number 1625.

[0033] The properties of this material are summarized in Table 1:

[0034] char...

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Abstract

A pipe having a pipe wall of multilayer structure, wherein said multilayer structure comprises one or more sublayers, each said sublayer consisting of a woven polymeric network interposed between one or more outer layers, the Said outer layer is a material selected from the group consisting of paper, polypropylene and polyethylene, wherein said tube is formed by adhering said sub-layers to each other while simultaneously winding said sub-layers onto a mandrel.

Description

technical field [0001] The present invention relates to the field of multilayer tube manufacture, known in the art as cardboard or fibreboard tubes, by the spiral winding process commonly used to manufacture paper tubes and cores. In particular, the present invention relates to improved construction of tubular products having improved physical properties, including enhanced tensile strength and impact resistance. Background technique [0002] In the field of manufacturing tubular products formed from multi-ply paper structures, the physical strength characteristics of said product based on the particular paper material are mainly determined by the number of paper layers contained in the tube wall and the adhesive used to bond said paper layers together. The properties of the adhesive are determined by the physical strength characteristics related to tensile strength, crush resistance, tear or puncture resistance or other parameters. Typically, greater strength is primarily ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B27/08B32B27/10B32B27/32B32B29/00B32B37/28B31C1/00B32B3/10B65H75/10E04G9/08E04G13/02
CPCB32B3/10B32B29/00B32B1/08B65H75/10E04G9/08B32B27/32E04G13/021B65H2701/5112B32B27/10B31C1/00E04G9/021Y10T428/1303B32B2317/122B32B5/028B32B29/02B32B2323/04B32B2323/10B32B2305/38B32B2597/00B32B27/12B32B2262/0253
Inventor 凯文亚当斯马里亚诺维勒斯库萨
Owner EZYTUBE
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