Classifications

• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
  • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
  • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
• • 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
  • D03D15/20—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 material of the fibres or filaments constituting the yarns or threads
  • D03D15/283—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 material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D1/00—Woven fabrics designed to make specified articles
  • D03D1/0035—Protective fabrics
  • D03D1/007—UV radiation protecting
• • 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
  • D03D15/40—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 structure of the yarns or threads
  • D03D15/47—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 structure of the yarns or threads multicomponent, e.g. blended yarns or threads
• • 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
• • 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
  • D03D15/587—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 adhesive; fusible
• • 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
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
  • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
• • 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
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
  • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
• • 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
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
• • 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
  • D10B2401/00—Physical properties
  • D10B2401/22—Physical properties protective against sunlight or UV radiation
• • 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
  • D10B2505/00—Industrial
  • D10B2505/18—Outdoor fabrics, e.g. tents, tarpaulins

Definitions

• the invention relates to textile sun protection articles, in particular awnings made of a recyclable fabric made from polyolefin yarn made of polypropylene fibers and melt binding fibers.
• Awning fabrics are currently preferably made from polyacrylonitrile (PAN) twists in 1: 1 plain weave with the highest possible weft and warp density.
• PAN polyacrylonitrile
• the fabrics In order to achieve a stiff handle required for awnings and water and oil repellent properties or sufficient water resistance, the fabrics must be provided with a chemical finish.
• Melamine-formaldehyde resins are used for the stiff handle and fluorocarbon resins are used for oil and water repellency.
• PAN fabrics A disadvantage of PAN fabrics is that no suitable way has been found to recycle PAN fabrics. For this reason, the not inconsiderable production waste that arises during the assembly of the awning fabrics and during edge trimming, as well as the used awnings, must be deposited or incinerated.
• Recyclable fabrics for carpets are known for example from EP-A1 0 568 916. These fabrics consist of a primary fiber layer, which contains a large number of fiber bundles, and optionally a secondary fiber layer, which is applied to the back of the primary fiber layer.
• the primary fiber layer preferably contains a mixture of polyester fibers, such as polyethylene terephthalate fibers, and lower-melting polyester fibers, such as fibers made of a polyethylene terephthalate / isophthalate copolymer.
• these fabrics do not have the stiff grip required for awnings, as well as water and oil repellent properties.
• Fabrics made from polypropylene (PP) fine fibers without chemical finishing are 100% recyclable and have excellent UV stability, equivalent to that of PAN awning fabrics, and also have improved tear and tear strength and less permanent elongation than PAN fabric.
• PP polypropylene
• these PP fabrics do not achieve the required stiff grip.
• the stiff handle finish with melamine-formaldehyde resin leads to an increased writing effect.
• small amounts of amines are produced during recycling, for example by melting and regranulation, by thermal decomposition of the melamine-formaldehyde resins, which give the regranulate a fish-like odor.
• the present invention accordingly relates to textile sun protection articles, in particular awnings, which are characterized in that they consist of a recyclable fabric made of a polyolefin yarn, consisting of polypropylene fibers and 1-20% by weight of a low-melting melt-binding fiber.
• the PP and melt binding fibers used are used in the form of staple fibers and contain customary auxiliaries and, above all, must have high UV stability and color fastness, in particular weather fastness.
• auxiliaries are, for example, UV stabilizers, thermal stabilizers and pigments.
• Suitable UV stabilizers are, for example, polymeric HALS ("hindering amine light stabilizers") or mixtures of different HALS stabilizers.
• Suitable pigments are organic and inorganic pigments which have the required high weather fastness and do not negatively influence the UV stability.
• the melt binding fibers have a lower melting point than the PP fibers.
• the melting point of the melt binding fibers is therefore preferably between 70 and 150 ° C.
• melt binding fibers are polyethylene (PE), copolyamide or copolyester fibers.
• bicomponent fibers can also be used.
• suitable bicomponent fibers are those which consist of a PP core and a PE jacket.
• PE fibers are preferably used.
• the PP fibers are spun with 1-20% by weight, preferably with 5-15% by weight, of melt-binding fibers as usual to form a yarn, for example on a three-cylinder ring spinning machine or on any other suitable spinning machine.
• PP fibers and melt binding fibers with different fiber counts can be used.
• PP fibers with a titer of between 1.5 and 5 dtex, particularly preferably between 1.7 and 3 dtex, and melt-binding fibers with a titer of ⁇ 5 dtex are preferably used. It is advantageous to use melt binding fibers with the lowest possible titer, since this can reduce the content of melt binding fibers.
• Yarn fineness can thus be achieved, which can also vary over a wide range.
• Yarns with a yarn count of Nm 20-60, particularly preferably of Nm 30-40, are preferably produced.
• the polyolefin yarn thus obtained is then optionally twisted as usual, for example by the double-wire method or another suitable method, and then processed into fabric as usual.
• the fabric After the usual washing of the fabric to remove the spinning and twisting preparation, the fabric is only provided with equipment for oil and water repellency. Fluorocarbon resins are preferably used for this. When heating to condense the fluorocarbon resin, the binding fiber melts and leads to the desired stiff grip after cooling and resolidification.
• the fabrics thus obtained can preferably be used for the production of textile sun protection articles, in particular awnings, but also for boat covers, tarpaulins, camping furniture covers and the like.
• Example 1 A comparison of the recyclability of the fabric according to the invention (Example 1) with the recyclability of a PP fabric (Example 2) which, as usual, with a melamine-formaldehyde resin (Cassurit MT, Hoechst), a catalyst for crosslinking the resin (NKN, Hoechst) and a fluorocarbon resin (NUVA FH, Hoechst), shows that the fabric according to the invention can be re-used 100% after regranulation, for example for the production of injection molded articles or a 17 dtex staple fiber for carpets. However, the regranulate of a fabric according to Example 2 can only be used up to max. 30% new granules are added.
• Another advantage of the invention is that, apart from the mixing of the PP and the melt binding fibers, no additional process steps are necessary and no special plants are required.
• a fabric was made from the twine on a Sulzer projectile weaving machine in plain weave 1: 1 (30 warp threads / cm, 14.5 weft threads / cm).
• the fabric was washed to remove the spinning and twisting preparation with the addition of an anionic surfactant (Arkomon A conc. 2 g / l), dried and with the aqueous liquor of a fluorocarbon resin (NUVA FH 25 g / l, isopronanol 30 g / l ) padded (wet pick-up 55%). After drying at 110 ° C, condensation was carried out on a stenter at 145 ° C.
• an anionic surfactant Arkomon A conc. 2 g / l
• the finished fabric had the desired stiff grip without writing effect.
• the maximum tensile force according to DIN 53 857 was 294 daN in the warp and 167 daN in the weft direction.
• the water tightness according to DIN 53 886 resulted in 33 mbar.
• the fabric was regranulated on a recycling plant from EREMA.
• the regranulate could be used 100% for the production of a 17 dtex staple fiber on a Fleissner compact spinning machine.
• the mechanical properties of the fibers obtained were practically identical to those made from new granules.
• Example 2 (comparative example )
• a yarn of Nm 34 was spun from PP staple fibers of the type ASOTA V8803 (2.5 dtex, 60 mm staple length) on a three-cylinder ring spinning machine. The yarn was folded and twisted to a Nm 34/2-fold thread using the double-wire process (maximum tensile force 34.2 cN / tex, maximum tensile force elongation 19.8%).
• a fabric was made from the twine on a Sulzer projectile weaving machine in plain weave 1: 1 (30 warp threads / cm, 14.5 weft threads / cm).
• the fabric was washed with the addition of an anionic surfactant (Arkomon A conc. 2 g / l), dried and with the aqueous liquor of a fluorocarbon resin and a rigid handle resin (NUVA FH 25 g / l, Cassurit MT 100 g / l, catalyst NKN 12 g / l, isopropanol 30 g / l) padded (wet absorption 55%). After drying at 110 ° C, condensation was carried out on a stenter at 145 ° C.
• an anionic surfactant Arkomon A conc. 2 g / l
• the finished fabric showed an undesirable writing effect.
• the maximum tensile force according to DIN 53 857 was 289 daN in the warp and 166 daN in the weft direction, the maximum tensile elongation was 59% and 29%, respectively.
• the water resistance according to DIN 53 886 was 34 mbar.
• the fabric was regranulated on a recycling plant from EREMA.
• the regranulate had a fish-like odor and was able to produce a 17 dtex fiber on a Fleissner compact spinning system with a max. 30% mixed with new granules. With a higher proportion of regranulate, too many filament breaks occurred.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Artificial Filaments (AREA)
• Woven Fabrics (AREA)
• Reinforced Plastic Materials (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=3508687

Family Applications (1)

Country Status (6)

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Family Cites Families (6)

• 1993
  • 1993-06-18 AT AT0119693A patent/AT402743B/de not_active IP Right Cessation
• 1994
  • 1994-06-06 DK DK94108605.0T patent/DK0629724T3/da not_active Application Discontinuation
  • 1994-06-06 DE DE59400052T patent/DE59400052D1/de not_active Revoked
  • 1994-06-06 ES ES94108605T patent/ES2080627T3/es not_active Expired - Lifetime
  • 1994-06-06 EP EP94108605A patent/EP0629724B1/de not_active Revoked
• 1995
  • 1995-11-30 GR GR950402146T patent/GR3018246T3/el unknown

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