SU1659544A1 - Double width fabric - Google Patents

Abstract

The invention relates to the textile manufacture of bag fabrics on shuttleless weaving looms and allows the fabric to be joined together. The ends of the weft threads of one canvas are earned overlapping the weft thread into the edge of another canvas. The ends of the weft thread of one of the webs are made into the edge of the other canvas with a shift by one weft. 2 Il.

Description

This invention relates to the textile manufacture of bag fabrics on shuttleless machines.

Fabrics are necessary for use on vacuum filters with converging linen in the sugar industry, in the production of mineral fertilizers, in the chemical industry, etc.

The purpose of the invention is to harden the joint of the fabric webs.

FIG. 1 shows a tissue formation pattern; Fig. 2 shows a fragment of tissue at the junction of the webs.

The operational sequence of the formation of a hollow fabric on an shuttleless loom (Fig. 1) illustrates the arrangement of the weft threads of the upper layer and the fixing end that has passed from the plane of the lower layer to the upper one. On the machine, the upper layer C and the lower layer D are located one above the other. They are formed from the main threads B and B1 of weft segments A and A1. The shaded circle is marked with 1, 3 weft thread A of the lower blade D, open shading -2.4 weft thread A of the upper blade C.

In the open mouth of the web D (pos.2, 4 in Fig. 1), a section of weft thread A is laid, its ends are held by a thread catcher, and the mouth of the mountain A comes along;

In the open shed of the upper web C (1, 3 in Fig. 1), the retaining ends of the weft thread A of the lower web D are laid with the needle edge and the weft thread A is simultaneously laid, its ends are picked up and retained by the thread catcher, the weft thread A comes;

The retained ends of the weft yarn A1 of the upper web C are laid into the open shed of the lower web D by the edge of the edge former and the subsequent weft thread of the lower web D is laid.

During this period, a shift by one weft thread occurred in the connecting seam, an overlap of the thread was formed, followed by the weft thread of the web D (Fig. 2).

To keep the weft yarn in the throat and the weft ends of the opposite web

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the length of the fixed ends of the weft is increased from 1.5 to 2.5 cm.

Between the cloths there are sections of the sewn edge in the size 2 times larger than the edge itself.

Fabrics can be produced from any Kind of yarn, complex and monofilament, at the base and weft, differ from each other in the linear density of the processed warp and weft threads 1: 1.17,

 filler densities of the warp and

duck t 2-3, to have a coupling coefficient

fabrics of at least 1, differ in tensile strength and abrasion and other physical and mechanical indicators characterizing the performance properties of the fabric.

Organizing the release of double-width fabrics on shuttleless looms.

allows to provide high-quality equipment of filtering equipment.

Claims (1)

Invention Formula 5 double-width woven fabric into two webs on the basis of a hollow fabric from two systems of the main threads interlacing with segments of weft threads, the length of which is greater than the filling width of each of 10 canvases, and the ends of weft yarns from one web are overlapped with weft yarns into the edge of another web, characterized in that, in order to strengthen the connection of the webs, the ends of the weft yarns 15 of one of the canvases are earned to the edge of another canvas with a shift by one weft when the ratio of linear densities of the warp and weft is 1: 1.17, the ratio of refueling densities of the warp and weft 23, the ratio 20 bind at least 1 and the total width of the adjacent edges of 3-5 cm. CO 30 /7ffJ.f CO .00 / Joz.Z Pos. g