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Method, fabrics and machines for producing seamless bags and similar items

A bag and fabric technology, applied in the direction of envelope/bag manufacturing machinery, fabrics, bags, etc., can solve the problems of high cost and not very strong

Inactive Publication Date: 2011-06-22
马科斯・瓜施・帕比尔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Paper bags, although more complex to manufacture and still economical, are less strong, thus limiting their use
[0004] As for the cloth bags, they are the most ecological and very strong, but their drawback is the high cost, especially due to the cutting and sewing operations required in the production process

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, fabrics and machines for producing seamless bags and similar items
  • Method, fabrics and machines for producing seamless bags and similar items
  • Method, fabrics and machines for producing seamless bags and similar items

Examples

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Embodiment Construction

[0032] According to the accompanying drawings, the object of the method of the invention for obtaining seamless bags and similar products made of fabric consists in weaving two Separate superimposed cloths 1 and 2 are joined laterally at a predetermined distance x by interweaving warp strands with weft strands 3 .

[0033] Simultaneously, the individual warp tapes 4 are formed in the loom so that the longitudinal edges of these tapes are terminated with corresponding selvedges 5 .

[0034] These bands 4 are subjected to transverse die-cutting 6 ( Figure 4 ), thereby forming a bag 7 with an opening 8, for example, using a rotating cylinder or a "flat knife" ( Figure 5 ).

[0035] exist Figure 7 In the case of , a transverse die-cut 6' is performed in the area where the two cloths are joined by the weft strand 3, and this is supplemented by other curved cuts 9, 10 and 11 forming the handles 12 and 13 of the bag 7'.

[0036] Figure 11 The strip is shown already cut, but ...

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, fabrics and machines for producing seamless bags and similar items. The method is characterised in that a weaving loom is used to weave two independent stacked fabrics which are joined transversely at pre-determined distances by interlinking warp threads using weft threads. Simultaneously, independent bands with corresponding selvages along the longitudinal edges thereof are formed in the warp direction in the weaving loom and, subsequently, said bands are fully or partially punched in order to form the bag or similar item. According to the invention, the area between the transverse and longitudinal selvages of one the fabrics to be used includes connecting zones with floating warp threads and connecting zones with floating weft threads. The machine includes means for pulling, tightening and aligning the fabric and means for cutting same in a curved or angular transverse manner.

Description

Background technique [0001] There are different types of bags in different materials obtained by several methods, the most commonly used materials being plastic, cloth and paper. [0002] Plastic bags are very economical and easy to manufacture by welding and die-cutting, and are widely used, usually for single use, for example when shopping in stores, mainly supermarkets and the like. This material is not biodegradable and creates a serious litter problem. [0003] Paper bags, although more complex to manufacture and still economical, are less strong, thus limiting their use. [0004] As for cloth bags, they are the most ecological and very strong, but their drawback is the high cost, especially due to the cutting and sewing operations required in the production process. Contents of the invention [0005] The object of the invention is a method, a fabric and a machine for obtaining seamless bags and similar products. [0006] This method produces bags or similar products...

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 Applications(China)
IPC IPC(8): B65D30/04D03D1/04B31B21/14
CPCD03D1/04D03D5/00B65D29/00
Inventor 马科斯・瓜施・帕比尔
Owner 马科斯・瓜施・帕比尔
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