Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for creasing a packaging laminate, a packaging laminate and a packaging

A stacking and bending technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve problems such as no description of bending methods, and achieve the effect of cheap methods

Inactive Publication Date: 2002-06-05
STORA ENSO OYJ
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, according to this document, the problem of crack formation is only solved in laminates consisting of cellulose and plastic, but definitely not in laminates mainly composed of cellulose fibers.
Furthermore, the document does not in fact describe at all how the bending method itself is carried out

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for creasing a packaging laminate, a packaging laminate and a packaging
  • Method for creasing a packaging laminate, a packaging laminate and a packaging
  • Method for creasing a packaging laminate, a packaging laminate and a packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Figure 1A -D shows a traditional packaging stack bent by a traditional bending method, the cardboard stack is bent on the die by bending the scoreboard ( Figure 1A ), according to the problem of the prior art described above: the permanent deformation of the convex plane after the traditional bending ( Figure 1B ), the formation of bulges / layers on the fold line ( Figure 1C ), and a permanent increase in thickness at the fold up to 180° ( Figure 1D ).

[0040] figure 2 Shown is the initiation of compression cracking on the side plies subjected to compressive loading in a conventional bend. So, according to Figure 1C , the compression crack will grow until the raised part is formed.

[0041] exist image 3 In , the bending method according to the invention for a packaging stack is shown. The stack comprises a body promoting layer 1 , a side layer 2b on the first side of the stack and two side layers 2a, 3 on the second side of the stack. In the embodiment ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of creasing a packaging laminate manufactured from cellulose fibres, which packaging laminate comprises a bulk promoting layer (1), here denoted bulk layer, which consists of a network structure of cellulose fibers, and on at least one side of the bulk layer at least one side layer (2b), the side layer and bulk layer being directly or indirectly joined to each other over essentially their entire surfaces facing each other. In the method a creasing device is pressed down, in a first side of the laminate, for the formation of a crease line (4), while, on the other side of the laminate, which is opposite to said first side, a holding-on tool is used, which holding-on tool is essentially planar in an area corresponding to the location of the creasing device. The invention also relates to a packaging laminate provided with a crease line, and packaging which has been formed by the folding of such a packaging laminate.

Description

technical field [0001] The present invention relates to a method of folding a packaging laminate made from cellulose fibres, the packaging laminate comprising: a bulk promoting layer, referred to herein as a bulk promoting layer, comprising cellulose a network structure of fibers; and at least one side layer on at least one side of the main body layer, the side layer and the main body layer being directly or indirectly bonded to each other over their entire surfaces facing each other. Background technique [0002] In the manufacture of packaging, bending is performed on a material, usually consisting of packaging stacks, whereby bending means are used to form indentations in the material. The crimping device may be shaped as a thin scribed plate with rounded smooth edges, or as a creasing wheel with rounded smooth edges, which presses the material into finely formed depressions in the mould. With this depression, the material is weakened at the so-ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B31B1/26B31B50/25B31B50/28B65D5/42B65D65/40
CPCB31B1/25B65D5/4266B31B2201/252B31F1/08B31B50/252
Inventor 马茨·弗雷德伦德利夫·诺兰德安尼卡·卡尔森
Owner STORA ENSO OYJ
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com