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A packaging material of the corrugated cardboard type

A packaging material and corrugated cardboard technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of insufficient material hardness, unsatisfactory hardness and ability to absorb impact, weak tear resistance, etc. The effect of reduced likelihood and increased tear strength

Inactive Publication Date: 2008-01-02
INTER IKEA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem is that when crease lines are formed in the material, as the folds along a particular line, there is a tendency to stagger with respect to adjacent valleys
Also, printing with a raster on a flat paper layer is concealed due to the washboard effect, with subtle differences in tone occurring between printed colors as opposed to ridges and colors as opposed to waves
In addition, the tear strength parallel to the wave is weak
The hardness and ability of the material to absorb shocks is not ideal, and the material is not stiff enough

Method used

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  • A packaging material of the corrugated cardboard type
  • A packaging material of the corrugated cardboard type
  • A packaging material of the corrugated cardboard type

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Embodiment Construction

[0019] The part of the packaging material shown in FIG. 1 consists of a laminate comprising a plane paper layer 11 and an auxiliary paper layer 12 arranged below said layer 11 . A second plane paper layer 13 is arranged below the auxiliary layer 12 . Below the latter is placed a second auxiliary paper layer 14 and an optional third planar paper layer. Said auxiliary paper layer comprises corrugations exhibiting an amplitude a perpendicular to the plane of extension of the auxiliary paper layer, ie in a direction parallel to the arrow A. The crests of these corrugations form in the auxiliary paper layers 12 and 14 a substantially parallel wave system exhibiting a wave amplitude b in the plane of extension of the auxiliary paper layer. The latter ripples can also be called parallel oscillations.

[0020] The plane paper layers 11 and 13 and the auxiliary paper layers 12 and 14 may be of the same thickness, preferably between 0.05 and 0.3 mm, for example 0.1 mm. The grammage o...

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Abstract

A packaging material of the corrugated cardboard type includes a laminate of at least one plane paper layer (1) and at least one auxiliary paper layer (3) with waves presenting an amplitude perpendicular to the plane of propagation of the auxiliary paper layer. The two layers are joined by means of a gluing material. The auxiliary paper layer (3) includes furthermore a system of substantially parallel waves ( 10, 10', 10 ''), the amplitude of which is in the plane of propagation of the auxiliary paper layer (3). As a result, the packaging material is more stiff than hitherto known without the lightness and voluminocity of the material being affected. In addition, the material possesses an increased tear resistance and is very suited for being provided with prints.

Description

technical field [0001] The present invention relates to a corrugated cardboard type packaging material. Background technique [0002] The known manufacture of corrugated board comprises a plane paper layer. A corrugated auxiliary paper layer is glued to the planar paper layer, and the corrugation amplitude of the auxiliary paper layer is perpendicular to the stretching direction of the packaging material. All ridges are arranged in straight parallel corrugations. The problem, however, is that when crease lines are formed in the material, there is a tendency for creases to interleave relative to adjacent valleys as creases along a particular line. In addition, printing by means of a raster on a flat paper layer can be concealed by the washboard effect, with slight differences in tone occurring between printed colors as opposed to the ridges and as opposed to the waves. In addition, the tear strength parallel to the waves is weak. The hardness of the material and the abili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B29/08B65D65/40E04C2/32B65D5/74B31B1/84E04C2/34
CPCE04C2002/345E04C2002/3466E04C2/322B32B29/08B65D65/403E04C2/3405E04C2002/3461Y10T428/24628
Inventor 汤米·吕德贝里
Owner INTER IKEA SYST