DE2801437A1 - COMPOSITE MESH AND METHOD FOR MANUFACTURING IT - Google Patents

Description

Patent attorneys O Q Π 1 / * 3

Dipl.-Phys. Willy Lorenz ^{l ö}

Dipl.-Ing. Anton Frhr. Riederer by couple

P.O. Box 1320, D-8035 Gaining 2 Telephone (089) 8 50 60 36

January 13, 1978

Our files: h 135-J, DE

Hepatex AG, 9630 Wattwil

Composite mesh web and method for making the same

The invention relates to a composite mesh web and a Process for their manufacture.

Textile articles are known which consist of two woven, knitted or knitted layers of fabric and one in between The layer of non-woven fabric or the like is made, the layers of fabric being made permanent by quilting seams are connected to each other. Such textile articles are mainly used in the clothing industry.

The aim of the invention is to create a similar textile article, the production of which, however, is less expensive because it can be produced in one operation on a knitting machine.

The composite mesh web according to the invention consists of two separate mesh webs, which are patterned with each other by tuck loops or stitches

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are connected, with cavities being present between the connection points. The composite mesh web is characterized in that at least one non-loop yarn is inserted between the two mesh webs is, the volume of which increases optimally during the subsequent finishing treatment and the cavities between fills the two mesh lengths.

The two mesh lengths can be made of single-surface right-left knitted fabrics consist and advantageously contain elastic textured yarns made of synthetic material. Particularly suitable are false-twist textured continuous yarns made of polyamides or polyesters. But it can also use other textured yarns, such as e.g. airflow, edge or compression textured yarns can be used. In addition, at least one of the Mesh webs of non-textured continuous yarn made from synthetic Material as well as natural and synthetic staple fiber yarns, e.g. cotton yarns.

Texture yarns made of synthetic material are suitable as the yarns filling the cavities. It has surprisingly been shown that such textured yarns, in particular false twist textured continuous yarns made of polyamides and polyesters, but also after Textured stuffer box method or air flow method

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synthetic yarns are eminently suitable for use as the void filling yarn because they bulge in an optimal way during the subsequent finishing and fill the cavities tightly. in the In the expanded state, these yarns also trap a lot of air and improve the insulation properties the composite mesh web. In addition, the weight per square meter remains despite the bulky filling of the hollow spaces of the composite mesh is relatively low.

The yarn filling the cavities can also be a plied yarn made of different individual surfaces or yarns be made of synthetic material with various shrinkability.

For the production of the composite mesh web according to the invention, a two-section large basic knitting machine can be more conventional Construction (double-jersey jacquard) can be used, which on individual systems with weft guides Is provided. The right-left knitted fabric serving as the outer fabric is placed on the cylinder needle bed, the right-hand fabric serving as the lower fabric

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Left knitted fabric on the ribbed needle bed with other knitting systems. The connection of the two knitted fabrics can in particular by tuck loops, which are based on needles selected by a jacquard device on the cylinder arise, namely on those knitting systems of the dial that produce the right-right knit of the lower fabric.

These catch loops come to lie on the inside of the outer fabric and are therefore not visible from the outside. Will instead of the tuck loops, stitches formed by the cylindrical needles selected according to the pattern, these appear individually Stitches on the outside of the outer fabric. This can be done when using different and / or different colored Yarns are used for the bottom and top fabric to create pattern effects.

The type of production described creates cavities between the outer fabric and the lower fabric, the size of which can be arbitrarily large the jacquard device can be controlled. The yarn filling these cavities can by means of a weft thread guide be inserted. Since this yarn does not form a loop, its denier can be much coarser than that of the yarns form the upper and lower fabric. The yarn is only held more or less by the tuck loops, so that it can be can develop full volume.

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Three exemplary embodiments of the invention are explained in more detail below with reference to the figures of the drawing.

Show it:

Fig.

a thread run cartridge for the composite ash track described in Example 1

Fig. 2 shows a thread run cartridge for the example 2 composite mesh web described

Fig. 3 shows a thread run cartridge for the in

Composite mesh sheet described in Example 3

Example l!

A false twist textured yarn a made of polyamide 6.6 with the titer dtex 110f34x2 is the one in the working position Knitting systems on the cylinder (needle contour 1) and with all cylinder needles the right-left knitted fabric forming the outer fabric manufactured. Furthermore, the same false twist textured yarn b is used in the knitting systems in the working position the dial (needle contour 2) fed and with all

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The right-left knitted fabric forming the lower fabric is produced by dial needles. At the same time, with cylindrical needles selected according to the pattern, tuck loops b ^{1 are} formed which connect the outer fabric and the lower fabric to one another. A false twist textured yarn c made of polyamide 6.6 with the titer 110f34x6, which fills the cavities and does not form any loops, is inserted between the needle contours 1 and 2 by means of a weft thread guide. With the same mesh strength in the knitting systems on the cylinder and on the dial, the cavities are filled by the yarn c in such a way that the composite mesh web has raised areas on both the front and the back.

Example 2

A composite sheet is produced in the following way:

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Two air-textured polyester yarns h, i dyed in different colors with the titer dtex 200f64xl are fed to two knitting systems on the cylinder in working position. In one knitting system the yarn h is knitted to the outer fabric with needles selected by the jacquard device of the cylinder according to the pattern, and in the other knitting system the yarn i is knitted with the remaining needles _f whereby the stitches of the two knitting systems complement each other to form a full row of stitches . A false twist textured yarn k made of polyamide 6.6 with the titer dtex 110f34x2 is fed to the needle contour 2 (dial) and the right-left knitted fabric forming the lower fabric is produced / the yarn k simultaneously forming the tuck loops k ¹ . Between the needle contours 1 and 2, a plied yarn made of three polyacrylic threads with different shrinkability and a denier Nm 40 each is inserted, which bulges during the subsequent finishing treatment and fills the voids of the composite mesh web.

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Example 3

A false twist textured yarn a made of polyamide 6.6 with the titer dtex 78f2Ox2 is fed to the needle contour 1 (cylinder) and the right-left knitted fabric forming the outer fabric is produced. Furthermore, a false twist textured yarn d made of polyamide 6.6 dtex 78f2Ox2 is fed to the 1st knitting system of the dial in working position and knitted on needles 1, 3, 5, 7 etc. right-left. A cotton yarn f Nm 50 is fed to the second knitting system of the dial, which is in the working position, and knitted on the needles 2, 4, 6, 8 with a right-left backing. The stitches of the two knitting systems complement each other to form a full row of stitches. At the same time, with cylindrical needles selected according to the pattern, tuck loops d ^{1 are} formed in a knitting system, which connect the outer fabric and the lower fabric with one another. One or more false-twist textured yarns made of polyamide 6.6 with a titer of 110f34x2 are inserted between the needle contours 1 and 2, which fill or fill the cavities.

Due to the wet treatment during the subsequent dyeing and finishing of the composite mesh, the between the two single-surface right-left knitted false-twist textured yarns g bulge to the maximum and the resulting Fill cavities tightly.

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Claims (8)

Claims 1) composite mesh panel made of two separate mesh panels, which by means of tuck loops or meshes with each other in a pattern are connected, with cavities being present between the connection points, thereby characterized in that at least one non-stitch-forming yarn is inserted between the two mesh webs whose volume is optimally increased during the subsequent finishing treatment and the cavities between the two mesh lengths. 2) composite mesh web according to claim 1, characterized in that that the two mesh lengths each consist of a single-surface right-left knit " 3) composite mesh web according to claim 1, characterized in that at least one of the mesh webs contains at least one elastic textured yarn made of synthetic material. 80984 5/0643 - is - 280H37 I. 4) composite mesh web according to claim 3, characterized in that the textured yarns false twist textured Continuous yarns made of polyamides or polyesters. 5) composite mesh web according to claim 1, characterized in that that the yarn filling the cavities is a textured yarn made of synthetic material. 6) composite mesh web according to claim 5, characterized in that the yarn filling the cavities is a False twist textured continuous yarn made of polyamides or polyesters. 7) composite mesh web according to claim 1, characterized in that the yarn filling the cavities a plied yarn made of different single threads or yarns made of synthetic material with different Is shrinkability. 8) A method for producing the mesh web according to claim 1, characterized in that on a circular knitting machine with Jacguardexnrichtung on the cylinder needle door serving as an outer fabric 809845/0643 280U37 Right-left knitted fabric and on the dial needle contour with other knitting systems as an underside serving right-left knitted fabric is produced / in this knitted fabric with a pattern through the Jacquard device selected cylinder needles that connect the outer fabric and the lower fabric Tuck loops are formed and that the yarn filling the cavities between the cylinder needle contour and the dial needle contour is inserted by means of a thread guide or a weft thread guide will. 809845/0643