Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D27/00—Woven pile fabrics
  • D03D27/02—Woven pile fabrics wherein the pile is formed by warp or weft
  • D03D27/06—Warp pile fabrics
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
  • D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
  • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
  • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides

Definitions

• the invention relates to a flame-retardant covering material for upholstered furniture, in particular for vehicle seats, with a base fabric and a pile woven with it.
• the relevant safety regulations generally require that the materials used for the construction and, in particular, the interior fittings have a certain flame resistance. This applies particularly to the interior of aircraft cabins. With regard to the upholstery of upholstered seats, it is required that it be flame-retardant and, moreover, keep embers away from the upholstery material for as long as possible. In practice, however, it has been shown that it is extremely difficult to produce a cover fabric which, on the one hand, meets the comfort requirements of the passengers and, on the other hand, passes the specified flame resistance tests.
• the invention is therefore based on the object of providing a cover fabric of the type mentioned at the outset which combines good performance properties with particularly high flame resistance.
• the upholstery fabric according to the invention is characterized according to a first embodiment in that the fabric is an Epinglé fabric, the base fabric of which consists of a plain weave fiber composition of a flame-resistant aramid and viscose and comprises a base chain and a loosely woven cover chain, and that to form the pile of new wool is woven in the warp direction as a pile thread with loop formation of at least 1 mm in height.
• the base fabric preferably consists of a mixed fiber called Karvin made of 30% by weight Nomex 450, one Aramid or aromatic polyamide, 5% by weight Tevlar, another aramid, and 65% viscose SR.
• Karvin made of 30% by weight Nomex 450, one Aramid or aromatic polyamide, 5% by weight Tevlar, another aramid, and 65% viscose SR.
• a 35% share of the flame retardant aramids has proven to be sufficient, while on the other hand a much higher share of these fibers would lead to a stiff, board-like fabric. In contrast, the viscose portion gives the fabric a soft fall.
• the basic warp preferably has a warp density of 18 threads / cm and a weft density of 12 / cm.
• the warp density of the cover chain is also 18 / cm.
• the thread thickness is preferably Nm 40/2 corresponding to 20 m / g.
• the incorporation i.e. the apparent loss of length of the warp threads during weaving in, based on the initial length, is 3% for the basic warp, and preferably about 33% for the much looser woven warp.
• the pile or the wear layer has 6 loops / cm and a loop height of 1.3 mm corresponding to a rod thickness of 1.2 mm.
• the thread of the wear layer can have a thread size Nm 27/2 corresponding to 13.5 m / g.
• the previously stated loop height is also an essential feature of the invention.
• a layer of noose higher heights would burn too quickly, exposing the base fabric to fire prematurely.
• Higher loops would unnecessarily increase the material costs without any advantages in use. Rather, there is a risk with higher loops that they fold flat on the seat surfaces of the seats and thus not only impair the visual impression, but at the same time impair the value of the wear layer as a flame barrier.
• New wool inherently has a relatively high flame resistance, so that in principle a wear layer made of erected loops has the function of a flame barrier.
• the fabric can be provided according to the IWS zirpro method according to the invention.
• Epinglé fabric should be understood to mean a fabric in which wires of, for example, 1 mm or - as in the present case - 1.2 mm diameter, so-called rods, are used in the weft direction , are inserted during the weaving process, over which the pile threads of the wear layer are laid to form loops (pile nubs). The rods are then pulled out to the side. The loops remain closed with this weave, so they are not cut open.
• Nomex 450 and Tevlar are names of the DuPont company.
• the corresponding aramid fibers are spun with viscose fibers to form a mixed thread, which is available under the name Karvin.
• the object of the invention is achieved in a cover fabric, which is characterized in that the fabric is a velor, the base fabric of which consists of a mixed thread made of a flame-resistant aramid and viscose and a loose one woven base chain and a tightly woven cover chain, and that to form the pile 100% mohair is woven in the warp direction as a pile thread with a nub height of at least 3 mm.
• the base fabric preferably consists of a mixed fiber called Karvin made of 30% by weight Nomex 450, an aramid or an aromatic polyamide, 5% by weight Tevlar, another aramid and 65% by weight viscose SR.
• the relatively loosely woven base warp preferably has a warp density of 13 threads / cm.
• the weft density is preferably at least 26 threads / cm.
• the cover chain has a warp density of 13 / cm. This also applies to the pole chain.
• the thread size is preferably Nm 40/2.
• this fabric allows a pile portion, which is sufficient for comfort, to be taken up in the shape of a velor and, on the other hand, forms a sufficiently tight shield to keep glowing parts away from the upholstery material in the event of a fire.
• the fabric is preferably equipped with the ISW-Zirpro process.
• the flame-resistant mohair velor with Karvin base fabric preferably has a total composition of 50% mohair and 50% karvin.
• the weight is of the order of 780 g / m or 600 g / m2.
• the pile height of the wear layer should be at least about 3 mm, but preferably about 4 mm in the interest of better comfort.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Woven Fabrics (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6288897

Family Applications (1)

Country Status (2)

Cited By (10)

Families Citing this family (2)

Family Cites Families (4)

• 1985
  • 1985-12-19 DE DE3544993A patent/DE3544993C1/de not_active Expired
• 1986
  • 1986-12-17 EP EP86117540A patent/EP0228026A3/fr not_active Withdrawn

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