DE2339898A1 - MULTI-LAYER SEWING FABRIC WITH AN ELASTOMER FOAM AS A CARRIER LAYER AND A PROCESS FOR MANUFACTURING THESE - Google Patents

Description

PATEFTANMEIDUIG

Applicant: V ^ zkumny ustav pletarsk ^, Brno,

Sujanovo namSsti 3

Title: Multi-layered close-up active substance with an elastomer foam sheet as a carrier layer and process for the production of the same

The invention relates to a multi-layered sewing material with an elastomer foam sheet as the carrier layer and with a textile character on both sides, good recovery capacity, Shape and surface stability and good case, as well as the process for producing this Sewing fabric

The utilization of the thermal insulation capacity has been going on for a long time and other good properties, as well

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ORlGiNAL U4öPECTEO

the elasticity of elastic fabrics, e.g. B. Elastomer foam layers and foils, aimed at the production of clothing, upholstery and other textiles, namely in the form of textiles combined from these foam layers and textile fabrics.

One of those produced by combining the foam layers mentioned with other textile fabrics The basic requirements placed on textiles are to achieve sufficiently strong connections, especially in relation to on the intended use, dry cleaning and that Washing these products, covering the foam layer as perfectly as possible in order to reduce degradation the same as a result of the action of light, as well as the punctiform connection of the two layers for the purpose of preservation the softness and the drape of the textile to avoid wrinkles and breaks similar to felt products to eliminate.

For connecting the elastomeric foam layer having one or more layers of a textile fabric, two methods are today used, namely a chemical process, ie, the bonding, and a mechanical method, i.e., ₀ h. quilting and sewing

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Textile composites that use an elastomer foam sheet as a Contain carrier layer and are produced by any "arbitrary method, in particular have one a number of articles, but particularly in the case of articles of clothing, undesirable reduced air permeability on, furthermore, the strength of the connections between the individual layers suffers, especially in Washing and dry cleaning, furthermore form when wearing outerwear in the crook of the arm the creases typical of felts, and especially if the elastomer foam layer is covered on both sides In the case of furniture or car upholstery fabrics, this process is time-consuming and time-consuming.

From the mechanical methods of joining the elastomer foam layer The less used quilting is known with layers of textile fabrics.

The disadvantages of this method are that a fabric or knitted fabric must be used to cover the elastomer foam carrier layer _{or the like}

It is also a method of making nonwoven fabrics with an elastomeric foam backing known by knitting through this elastomer foam carrier layer on a stitchbonding machine. To a diminished

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Expansion of the foam layer and an increase in strength To achieve the same, the sewing is done exclusively with a system of binding threads, preferably in Tricot weave, under which groups of weft threads, fabrics or knitted fabrics are placed, if necessary.

The disadvantages of these sewing active substances are that in the case of the elastomer foam web with penetration a complete covering of the elastomer foam layer is not achieved with only one binding thread system, so that exposed to degradation by exposure to light is. In the case of stitching with two binding thread systems, one of which is the weft threads placed in groups forms, only the one-sided covering of the elastomer foam layer, which is given a textile character, while the back still does has undesirable adhesiveness of the elastomer foam layer protruding between the wales, so that these sewing fabrics are not used in most cases without expensive lining material can.

The object of the invention is to produce a multi-layered stitch-knitted fabric with an elastomer foam layer, which do not have the disadvantages of the previously known foam-coated goods and sewing materials.

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shows, despite its simple production and low costs, its textile character on both sides, the case the ability to recover, the dimensional stability and strength when using the smallest possible amount of Textile flat structures for covering, connecting means and thus also as small as possible Number of operations.

This object is achieved in that the elastomer carrier layer is provided on one side with a fleece and on the other side with a coherent fiber layer formed by needles with the fibers drawn from the fleece through the elastomer foam carrier layer, the multilayer fabric with a or several systems of binding chains, possibly drawn in and laid in accordance with the pattern, which may form pronounced relief patterns on one side of the sewing material and the same wale on the other side.

On one or both sides of the multi-layered active ingredient In order to reduce the stretchability of the textile, a system can be added under the system of binding chains of weft threads are laid.

To the usage properties, but especially the

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The pronounced relief pattern is to improve the abrasion resistance of the textile and reduce the tendency to pilling solidified by a surface layer of a synthetic polymer in the form of a dispersion or solution,

The inventive method for producing a multilayer Sewing material consists in the fact that the elastomer foam carrier layer with the nonwoven fabric in the way is connected that the fibers of the fleece on the other side of the elastomer foam carrier layer on which this Fibers do not form a coherent fiber, are pulled through, whereupon the needled fabric with one or more systems of binding threads, possibly drawn in and inserted binding chains according to the pattern, the wales on one side of the stitching material with the connected fiber layer and on the on the other side of the same form pronounced relief patterns, is penetrated.

When sewing, one or both sides can be used of the layered sewing material in a known manner under the system of binding warps a system of weft threads be placed.

Elastic, textured synthetic continuous yarns can advantageously be used for sewing.

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For further finishing of the multi-layered stitch-knitted fabric, this can be done by steaming, washing, dyeing or thermal Treatment can be relaxed and / or roughened, the relief pattern then by means of a surface layer of a synthetic polymer solidified in the form of a dispersion or solution, Fowie at the same time thermal treatment, stretched evenly in the longitudinal direction and narrowed in the transverse direction in a controlled manner can be.

The layered active sewing material according to the invention has increased sound and heat insulation properties, dimensional stability, as well as better fiber anchoring, mesh strength, elasticity in both directions, a pronounced relief pattern and a reduced propensity to pill. The production of the sewing material is extremely economical because the elaborate process of producing the previously non-woven to achieve the textile surface character of this Textile necessary yarn is eliminated, the usage parameters with those comparable Fabric or knitted fabric match.

The elastomer foam carrier layer is elastic foils with sufficient tear resistance when needling and stitching suitable. These are in particular foam layers based on polyurethane, but they are suitable

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also butadiene and butadiene styrene products, reaction products of polysulphide salts and polyhalides, polymers of halogenated unsaturated hydrocarbons, as well as polymers based on isobutylene, vinyl halides, polyamide, polyesters, urea, etc.

The multilayered sewing active substances produced according to the invention are especially used as cover fabrics, namely Suitable for both furniture and car covers. In the shoe industry, these sewing agents can contribute used in the manufacture of uppers for house and street shoes, as well as for insoles and roughened shoe linings will. These active ingredients can also be used in the production of full-surface floor coverings and carpets be used. In the clothing industry, these products can be used as heat-insulating inserts for Home and sportswear find application «.

An embodiment of the sewing material is shown in the drawing and is described in more detail below. Show it:

1 shows a three-dimensional view of a multi-layered sewing material from the right side in partial section,

2 shows a three-dimensional view of the multilayered sewing material from the rear in partial section,

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3 shows the multilayered sewing material in section and

Fig. 4 is a side view of an example of the manufacturing plant.

The multi-layered sewing material 1 (Fig. 1) with an elastomer foam carrier layer 2 is on the right side with a coherent one drawn through the needling with the elastomer foam carrier layer 2 Fibers formed from the fleece fiber layer 4 provided. The cohesive fiber layer 4 granted the left side of the textile has a textile character.

The multilayer sheet-like structure is provided with one or more systems of binding chains 5 and 5 laid according to a pattern 6 worked through in such a way that the binding chains in the case of thread drawing in accordance with the pattern and laying on the right side of the Textile form the helief pattern 7 and the wales 8 on the left side of the sewing material 1.

Fig. 4 is a schematic representation of an example of the plant for the production of the sewing active substance according to the invention.

A needle machine 9 of known design is provided with a roll with the elastomer foam web as the carrier layer 2

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and; a lap with the fiber fleece 3 presented in such a way that that the fibers of the fleece 2 from the needles to the other side of the elastomeric foam carrier layer 2, on which this Fibers form a coherent fiber layer, are pulled through.

The needled flat structure 10 is fed to a sewing machine 11 of known design by means of conveyors, on which this flat structure with one or more systems of drawn and inserted binding chains according to the pattern, the embossed relief pattern 7 on one side of the active sewing fabric and wales on the other side 8 form, is penetrated. The finished sewing material 1 is then wound up into a roll.

example 1

A nonwoven of 220 g / m 2 with transversely oriented acrylic fibers is placed on a card equipped with a winding device 3 den, stack length 60 mm, flake-dyed. This fleece is attached using needles with a polyurethane

2 foam sheets of 5 mm thickness and 65 g / m connected. That

2 is one-sided needles üiinstichen with 100 / cm in the manner made that 20 - 30 $> of the fibers of the batt to penetrate the polyurethane foam sheet and form a coherent fiber layer on the left side of this film.

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The needled fabric is knitted with a system of raw white, highly elastic, textured polyamide 66 continuous threads Kasilon 90/2 den, S-twist 265 in a combined double-row atlas and tricot weave with 60 rows / 10 cm The sewing fabric is worked on a fixing machine at 150 ° G two minutes with controlled elongation in the longitudinal direction by 12 ° and with a reduction in width by 12 $> pre-fixed, washed and strand-dyed on a reel runner.

The dyebath contains metal complex dyes, a non-ionic leveling agent, Glauber's salt and sodium salt of dibutyl-naphthalenesulfonic acid for dyeing the polyamide binding thread to a color that contrasts with the color of the fiber fleece. After dewatering in full width on the padder, drying is carried out on a tenter frame. In order to improve the performance properties, in particular the abrasion resistance and to reduce the tendency to pill, the multi-layered sewing material is diluted on the right side with a surface layer of an aqueous dispersion of an acrylic ester-acrylic acid copolymer with a dry content of 40 $>, diluted in a ratio of 1: 2 in the Quantity of 50 g / m provided. After application of this layer, the thermal treatment follows at 15O ⁰ C for 2 minutes "

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Such a sewing compound is particularly useful for furniture and suitable car upholstery fabrics

Example 2

A fleece of 240 g / m 2 with transversely oriented polyamide fibers is placed on a card equipped with a winding device 6 den, staple length 110 mm, flake or spun dyed, produced «This fleece is made using needles

to 2

ρ a 3 mm thick polyurethane foam film 50 g / m connected. The needling is done on one side with 160 punctures / om in such a way that 40-50 % of the fibers of the fleece penetrate through the polyurethane foam sheet and form a coherent fiber layer on the left side of this sheet.

The needled fabric is made with a system of spun-dyed filaments 120 den in fringe weave and staggered Two-needle twill weave with 70 rows / 10 om interwoven.

The stitching material is compressed on the left in one or two passages of a 24-roll room machine the pile layer and cover of the rods formed by binding thread are roughened.

In order to increase the abrasion resistance and to reduce the tendency to pill, the multi-layered sewing material is applied

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the right side with a surface layer of an aqueous dispersion of a styrene, acrylic ester and acrylic acid copolymer with a dry content of 50 #,

2 diluted in a ratio of 1: 1 in the amount of 65 g / m. After application of the dispersion, the thermal treatment is carried out for 30 seconds at 19O ⁰ G.

This sewing compound is available as an air-permeable upper textile, whose roughened left side serves as a lining, e.g. suitable for slippers.

Example 3

On a provided with a winding device carding machine, a web of 260 g / m with flake or spun-dyed transversely oriented fibers in a mixture of 70 $ Tesil 31, 6 mm to, staple length 85, and 30 i> viscose 6 mm to, staple length 120 produced .

This fleece is made by needles with a 4 mm thick

2
Polyurethane foam sheet 60 g / m connected * The needling

is made on one side with 100 punctures / cm in such a way, that 20-25 # of the fibers penetrate through the polyurethane foam sheet and on the left side of this Foil form a coherent fiber layer.

The needled fabric is made with a system of spun-dyed polyamide filaments 120 den in fringe

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2 and staggered tricot binding with 70 rows of masonry / 10 cm interwoven. The active ingredient is impregnated on a three-roller padder with a 90 $ squeeze effect in an aqueous dispersion of a vinyl acetate-acrylic and acrylic acid copolymer with a dry content of 40 $, diluted in a ratio of 1: 2. After the impregnation, the drying follows and the thermal treatment at 120 ^° C.

This active ingredient is particularly suitable as an air-permeable upper part for house and street shoes.

Example 4

On a card equipped with a winding device

a nonwoven of 220 g / m with transversely oriented spun-dyed fibers in a mixture of 70 $> polypropylene fibers 15 denier, staple length 90 mm and 30 1 " viscose fibers 12 denier, staple length 85 mm" is produced.

P.
film 120 g / m connected. The needling is one-sided with

2
80 punctures / cm made in such a way that 10-15 of the fibers penetrate through the polyurethane foam sheet and form a coherent fiber layer on the left side of this sheet.

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The needled fabric is spun-dyed with a system Continuous polyamide threads 120 den in a combined fringe and tricot weave with 60 rows / 10 cm worked through.

The stitchbonded fabric is either impregnated or provided with a surface layer and Rückanappretur The impregnation is on a Dreiwal enfoulard ζ with 100 tigern squeezing in an aqueous dispersion of a plasticized with 20 $> dibutyl Vinylazetatkopolymeren with addition of a melamine formaldehyde precondensate and Antimmoniumchlorids made as catalyst · to On the surface of the right-hand side, an aqueous dispersion of an acrylic acid-styrene copolymer with a dry content of 50 # _f diluted in a ratio of 1: in an amount of 100 g / m is applied + 8,000 cPs of thickened butadiene styrene latex in the amount of 400 g / m. After application, it is dried on drying rollers.

This sewing compound is particularly suitable as a floor covering with very good sound and heat insulation properties

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Example 5

On a winding device provided with a carding machine, a web of 180 g / m with a transversely oriented fibers in a mixture is to, staple length 60 made of 50% cotton and 50 $> viscose fibers 3.5 mm. The material can be raw white, flake or spun dyed. This fleece is connected by needles to a 4 mm thick polyurethane foam film 60 g / m 2. The needling becomes one-sided

2
carried out with 120 punctures / cm in such a way that 25-30% of the fibers penetrate through the polyurethane foam sheet and form a coherent fiber layer on the back of this sheet.

The needled fabric is made with a system of raw white or spun-dyed polyamide filaments 120 in Fringe binding with thread draw-in 1: 1 with 50 rows / 10 cm interwoven.

This sewing material is particularly useful as a lining material for Articles of clothing and footwear or as an insert with great thermal insulation properties and dimensional stability, with one-sided Pole cover suitable without roughening on a raising machine being necessary «,

Example 6

On a card equipped with a winding device

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ο
a nonwoven of 190 g / m 2 with transversely oriented fibers is produced in a mixture of 55 # Tesil 31 3.5 denier, staple length 60 mm, and 45 # viscose fibers 3.5 denier, staple length 60 denier. This fleece is made using needles with a 2 mm

ο thick polyurethane foam film 25 g / m connected. That

2 needles are made on one side with 120 punctures / cm in the Y / eise that 25 - 30 % of the fibers penetrate through the polyurethane foam sheet and form a coherent fiber layer on the back of this sheet «,

The needled fabric is made with a system of spun-dyed polyamide filaments 120 den in two rows Satin weave with 70 rows / 10 cm interwoven.

The near-knit fabric is pre-fixed on a fixing frame at 190 G 30 Sea while the textile is stretched lengthways by 10 $> and the width is reduced by 12 $> , then washed and dyed on a reel runner. After dehydration, it is dried.

For improving the use properties, the fabric is on the front side with a surface application of an aqueous dispersion of an acrylic acid and Akrylatester--Kopolymerisates with a dry content of 40 $> _f diluted in the ratio 1: 2, 5, in the amount

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2
of 40 g / m. After application, the thermal treatment follows at 150 ° G for 2 minutes.

This sewing compound is suitable for home and sportswear, e.g. suitable for vests, jackets and tracksuits.

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Claims (6)

PATE N TA I LANGUAGE: (λΐ multi-layered sewing material with an elastomer foam carrier layer, characterized in that the elastomer foam carrier layer (2) on the one hand with the fleece (3) and on the other side with the needle with the elastomer foam carrier layer (2) The continuous fiber layer (4) formed by drawn fibers of the fleece (3) is provided, the multi-layered sewing material with one of several systems of binding chains (5, 6) optionally drawn in and laid in accordance with the pattern, which on one side of the sewing material has the pronounced relief pattern (7) and on the other side of the same the wales (8) form, is knitted through. 2. Multi-layered sewing material according to claim 1, characterized in that the pronounced Relief pattern (7) by means of one formed from a dispersion or solution of a synthetic polymer Surface layer is solidified. 3. A method for producing a multi-layered sewing fabric according to claim 1, characterized in that g e k e η η - - 20 409 8 0 9/089? 7339898 draws that the elastomeric foam carrier layer (2) by needles with the fiber fleece (3) is connected in such a way that the fibers of the Fleece (3) on the other side of the elastomer foam carrier layer (2) are pulled through, whereby these fibers form the coherent fiber layer (4) form, whereupon the needled fabric with one or more systems of binding threads, optionally according to the pattern drawn in and laid binding chains (5, 6), which are on the contiguous The fiber layer (4) on the side of the sewing material is provided with the wales (8) and on the other Side form a pronounced relief pattern (7), is penetrated. 4. A method for the production of a multi-layered sewing fabric according to claim 3, characterized in that the sewing by means of elastic textured binding chains is carried out. 5. A method for the production of a multi-layered sewing material according to claim 3 and 4, characterized in that the worked through Fabric z. J3. is relaxed and / or roughened by steaming, washing or dyeing. - 21 - 409809/0897 6. A method for producing a multi-layered sewing active substance according to claim 5 to 5, characterized in that the side of the sewing active substance provided with the pronounced relief pattern (7) solidified by applying a dispersion or solution of a synthetic polymer and stretched uniformly in the longitudinal direction in a controlled manner with simultaneous thermal treatment and is narrowed in the transverse direction . 409809/0897