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Method for the production of web sections from flexible web material, and for the production of packaging containers

A technology of weaving materials and packaging containers, which is applied in important aspects of the field, and can solve the problems of difficulty in setting perforations, not very flexible, easy to wear, etc.

Active Publication Date: 2011-06-08
STARLINGER & CO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the contrary, when producing packages with side ruffles from synthetic fabrics or their composites, it is very difficult to set the perforations, since cutting is problematic if the synthetic fabrics have small strips on top of each other
For example, to date expensive punching tools have been required which are not very flexible and are prone to wear

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
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  • Method for the production of web sections from flexible web material, and for the production of packaging containers
  • Method for the production of web sections from flexible web material, and for the production of packaging containers
  • Method for the production of web sections from flexible web material, and for the production of packaging containers

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Embodiment Construction

[0033] First, now refer to figure 1The method according to the invention for producing a knitted segment 2 from a flexible knitted material 1 will now be described. The flexible woven material is conveyed in the longitudinal direction (arrow A) to the perforation station by means of conventional conveying means such as roller pairs (not shown). In the exemplary embodiment, the braided material 1 is tubular, folded flat so that the upper (1a) and lower (1b) braided material lies on top of each other. The woven material 1 comprises a fabric of small plastic strips, preferably composed of PP, PE or PET, suitably stretched before weaving. The small plastic strips can be of single-layer or multi-layer design. The fabric may be attached to at least one additional layer of material. In a variant, the additional material layer is a single or multilayer plastic layer, in particular made of PP, PE or OPP film, or comprises a special adhesive layer. In a further variant, the addition...

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
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Abstract

The invention relates to a method for the production of web sections (2, 12) from a flexible web material (1, 11), wherein the web material is equipped with tear-off lines (3a, 3b; 13) at the distances of the length (L) of the web sections to be formed, the lines weakening the web material, but not effecting a complete separation of the web sections from the web material, and the web sections being separated from the web material along the tear-off lines by tearing. The web material (1, 11) comprises a woven fabric made of stretched plastic strips, and the tear-off lines (3a, 3b; 13) are created by means of laser beam treatment.

Description

technical field [0001] The present invention relates to a method for producing a woven segment from a flexible web material, wherein said woven material is provided with a tear line at a distance of the length of the woven segment to be formed , the tear line weakens the braided material, but does not completely separate the braided segments from the braided material, and separates the braided segments from the braided material along the tear line by tearing. [0002] Furthermore, the invention relates to a method for producing packaging containers using the woven segments produced according to the invention, an important aspect of the invention relates to the production of side-gussetted containers, in particular side-gussetted bags . Background technique [0003] Packaging with side hems made of paper has been known for decades. In practice, said packaging is produced as follows: [0004] - Place straight or stepped perforation lines on a flat paper web (web) at distanc...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B23/00B29C59/00B31B19/14B31B50/16
CPCB29C59/007B31B2219/14B31B2237/403B31B19/14B29C2791/009B31B23/00B31B2237/10B31B2160/10B31B2155/0012B31B70/14B31B70/00B31B2155/00Y10T225/12B31B2155/001B31B2160/102
Inventor P·斯科佩克H·菲尔斯特
Owner STARLINGER & CO GMBH
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