EP2288742B1 - Coloration noire des fibres dans la masse - Google Patents

Coloration noire des fibres dans la masse Download PDF

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Publication number
EP2288742B1
EP2288742B1 EP20090757524 EP09757524A EP2288742B1 EP 2288742 B1 EP2288742 B1 EP 2288742B1 EP 20090757524 EP20090757524 EP 20090757524 EP 09757524 A EP09757524 A EP 09757524A EP 2288742 B1 EP2288742 B1 EP 2288742B1
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Prior art keywords
fibers
fiber
pigments
transparent
black
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German (de)
English (en)
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EP2288742A2 (fr
Inventor
Günter SCHERER
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BASF SE
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BASF SE
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/04—Pigments
    • 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
    • D03D15/54—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 coloured
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component

Definitions

  • the present invention relates to fibers containing IR-transparent colorants and 2 to 20% by weight of titanium dioxide as an additive based on the total weight of fiber and additives. Furthermore, the present invention relates to processes for producing such fibers. Uses of the IR-transparent colorants, in particular in heat management, are also the subject of the invention. Another object of the invention are materials containing such fibers.
  • DE 199 28 235 A describes a spectrally selective coating which has a high reflection in the wavelength range of 700-2500 nm and thereby causes a low solar absorption.
  • This coating contains (a) a binder which has a transmission greater than 40% in the wavelength range of the thermal infrared (2.5-50 microns), (b) first pigments which have a transmission greater than 40% in the wavelength range of the thermal infrared and ( c) second pigments which have a reflection greater than 40% in the wavelength range of the thermal infrared.
  • WO 00/24833 describes a spectrally selective coating comprising a) a binder having a transmittance of 60% or more in the wavelength range of 700 to 2500 nm, and having a transmittance of 40% or more in the wavelength range of thermal infrared; b) first pigments which absorb 40% or more of visible light in the wavelength range of 350 to 700 nm have a backscatter of 40% or more in the near infrared of 700 to 2500 nm and an absorption of 60% or more in the thermal infrared wavelength range have less; c) second pigments which have a backscattering and / or reflection of 40% or more in the wavelength range of the thermal infrared.
  • WO 02/057374 A1 describes a coating which has a higher reflection than usual colors in the non-visible regions of the solar spectrum, ie in the ultraviolet and in the infrared, and thereby absorbs less solar energy.
  • WO 02112405 A2 relates to a planar element consisting of a substrate and at least one coating of the substrate. Both the substrate and the surface are darkened in the visible range. In the near infrared region, this arrangement has a high reflectance to reduce the heating under sunlight despite the dark coloration in the visible region.
  • WO 2005/078023 A2 describes black perylene pigments and their mixtures which have a high black number. Furthermore, the disclosure WO 2005/078023 A2 the preparation of the perylene pigments and, inter alia, their use for coloring high molecular weight organic and inorganic materials of natural and synthetic origin. As examples of high molecular weight synthetic organic materials are in the WO 2005/078023 A2 For example: polyolefins, PVC, polycarbonate, polyester and other plastics.
  • perylene pigments can be loud WO 2005/078023 A2 for example, by co-extrusion, rolling, kneading, pressing or grinding, wherein the plastics can be processed into plastic moldings, continuous profiles, sheets, films, fibers, films and coatings.
  • coloring of fibers is mentioned in addition to a variety of possibilities, no concrete compositions of fibers containing perylene pigments or their applications in heat management are disclosed.
  • Materials containing fibers are often dark for technical or aesthetic reasons, for example brown, gray or black. Often dark shades of red or green are also found. If these materials are exposed to the influence of light or sunlight, they often heat up significantly, depending on their color depth. Such heating of materials containing fibers is often perceived as unpleasant in the case of, for example, clothing, woven fabrics or fabric covers. On the one hand, the heating up of the material creates an unpleasant impression of increased temperature on the surface Skin surface, which comes into contact with the materials directly or through the clothing, on the other hand contributes to such indoor heating by heat radiation, which is released from the dark materials again to increased temperature in the room, which regulates, for example, with high energy consumption by an air conditioner must become.
  • An object of the present invention was therefore to provide fibers of high color strength, but also gray or black fibers, which have in the exposure of light, in particular solar radiation on materials containing such fibers, a reduced heating to materials that are conventional colored fibers. Furthermore, these fibers should be able to be made with the conventional apparatus for making fibers.
  • a further object of the invention was to provide dyed fibers which can be processed by means of conventional apparatus into materials containing these fibers, the dyed fibers having a high resistance to light and environmental influences.
  • the object has been achieved by fibers comprising IR-transparent colorants and additives, wherein the fiber material contains 2 to 20 wt .-% titanium dioxide as an additive based on the total weight of fiber and additives.
  • colorant are meant in the context of the invention dyes or pigments.
  • Dyed fibers are fibers that appear colored as fiber bundles when viewed visually. Dyed fibers are preferably dark-colored fibers, in particular black, brown or gray fibers. This includes light gray or light brown fibers.
  • the fibers contain so-called dichromic, trichrome, or multichromic dye mixtures (mixtures having two, three or more than three colorants) as IR-transparent, in particular black, colorants.
  • the trichrome dyes are color mixtures of three dyes that leave the overall visual impression, in particular a black or dark, color impression with the observer. Examples of such color mixtures are those skilled in the art out EP1240243 known. Here colorant combinations are selected from the
  • Phenolics of the pyrazolone, perinone, anthraquinone, methine, azo and coumarin type are described.
  • metal-containing pigments such as inorganic pigments and metal complexes of azo, azomethine or methine, azomethine, quinacridone, dioxazine, isoindoline, isoindolinone, phthalocyanine, pyrrolopyrrole and thioindigo Type and bismuth vanadate are used.
  • the IR-transparent colorants used according to the invention are perylene pigments, preferably black perylene pigments, in particular those which are one of the isomers of the formula Ia or Ib in which the radicals R 1 and R 2 are independently phenylene, naphthylene or pyridylene, which may each be mono- or polysubstituted by C 1 -C 12 -alkyl, C 1 -C 6 -alkoxy, hydroxy and / or halogen . or a mixture of both isomers.
  • perylene pigments or mixtures thereof are used which have a black number ⁇ 210 in an alkyd / melamine baking finish.
  • mixture is intended to include physical mixtures as well as preferably solid solutions (mixed crystals) of the compounds Ia and Ib.
  • the phenylene, naphthylene and pyridylene radicals R 1 and R 2 in the formulas Ia and Ib may be mono- or polysubstituted by C 1 -C 12 -alkyl, in particular C 1 -C 4 -alkyl, C 1 -C 6 -alkyl, Koxy, especially C 1 -C 4 alkoxy, hydroxy and / or halogen, in particular chlorine or bromine, be substituted.
  • phenylene, naphthylene and pyridylene radicals are preferably unsubstituted, with the phenylene and naphthylene radicals being preferred and the naphthylene radicals being particularly preferred.
  • the black perylene pigments preferably used according to the invention in the fibers absorb in the entire visible spectral range and are thus distinguished by their high degree of blackening.
  • the perylene pigments in an alkyd / melamine stoving lacquer preferably have a black number M Y ⁇ 210, particularly preferably ⁇ 230.
  • the black number here is analogous to the test method B1 of WO 2005/078023 A2 (P. 27, lines 24-38).
  • black number 100 ⁇ log (100 / Y).
  • infrared radiation is defined as electromagnetic waves in the spectral range between visible light and the longer-wave microwaves. This corresponds to a wavelength range from about 760 nm to 1 mm. With short-wave IR radiation (from 760 nm to 1500 nm) one often speaks of near infrared (near infrared, NIR). Infrared radiation is part of the heat radiation.
  • the perylene pigments used according to the invention in the fibers are transparent in the NIR range (760 to 1500 nm), the transmission of the pigments in the NIR is accordingly generally> 60%, preferably> 70%, particularly preferably> 80%.
  • IR-transparent means in the wavelength range from 760 to 1500 nm at a concentration of 0.0625% by weight of homogeneously incorporated colorant in a polyvinyl chloride film (PVC film) in said wavelength range, the reduction in transmission compared to an otherwise identical PVC film of the same thickness, but without colorant - hereinafter referred to as standard - at most 20%, preferably at most 15%, particularly preferably at most 10% , starting from the transmission of the standard amounts.
  • PVC film polyvinyl chloride film
  • this numerical example results in a transmission in the otherwise identical PVC film containing 0.0625% by weight of the colorant of at least 70%, preferably at least 75%, more preferably at least 80%.
  • transparent in the wavelength range from 760 to 1500 nm means that the transmission of a polymer film of thickness 1 mm into which 0.05 g of the colorant per 80 g of polyvinyl chloride were incorporated homogeneously, in the wavelength range mentioned on average at least 65%, preferably at least 70% , in particular at least 75%.
  • the transmission is determined by using a (N) IR spectrometer with a large integrating sphere for integral radiation detection in diffuse transmission to record a transmission spectrum in said wavelength range.
  • the corresponding measuring methods including the necessary calibration are sufficiently known to the person skilled in the art.
  • a value for the transmission is determined in the stated wavelength range every 2 nm and number-weighted to determine the mean value.
  • the preparation of the test piece is preferably carried out by adding 0.05 g of the colorant to 80 g of polyvinyl chloride and subsequent homogenization on a Turbula mixer and subsequent rolling on a rolling mill at 150 ° C. Subsequently, 4 thus obtained rolled sheets are stacked on top of each other and pressed between two pre-heated to 145 ° C metal plates to a roll skin packet of thickness 1 mm.
  • the so-called absorption edge that is, the value at which the transmission is 50% in a thus prepared test piece of thickness 1 mm and a concentration of the colorant of 0.0625 wt .-% in the PVC film is in the wavelength range of 700 to 950 nm, preferably from 750 to 900 nm, in particular from 760 nm to 850 nm.
  • the IR transparency is also at least 30%, preferably at least 40% and particularly preferably at least 50%, even for the wavelength range from 1500 nm to 2500 nm.
  • the perylene pigments used according to the invention generally have a primary particle size ⁇ 800 nm, preferably ⁇ 500 nm, more preferably ⁇ 200 nm (determined by means of the particle size distribution in electron micrographs) and are dispersing-soft, ie. they have e.g. in the case of plastic coloration, a dispersion hardness DH ⁇ 5 in accordance with DIN 53775, page 7, on.
  • the preparation of the crude pigments used in the preparation of the perylene pigments of the invention can in generally known manner by condensation of perylene-3,4: 9,10-tetracarboxylic acid (dianhydride) with the corresponding aromatic diamine at elevated temperature (eg 150 to 250 ° C) in a high-boiling organic solvent, such as nitrobenzene, tri- and dichlorobenzene, ⁇ -chloronaphthalene, quinoline, tetralin, N-methylpyrrolidone, N, N-dimethylformamide, ethylene glycol, glacial acetic acid and cyclic urea derivatives, take place (cf., for example CH 373 844 . GB 972 485 . JP-A-07-157681 ).
  • a high-boiling organic solvent such as nitrobenzene, tri- and dichlorobenzene, ⁇ -chloronaphthalene, quinoline, tetralin, N-methylpyrrol
  • the crude pigments obtained here and also in other known preparation processes are usually in the form of large crystals of very heterogeneous shape or else as partially amorphous powders.
  • a particularly suitable embodiment for the variant a) of the above-mentioned preparation method is that the crude pigments first dry grinding in the presence or absence of a salt as a grinding aid and then a recrystallization in an organic solvent, if desired in admixture with water, in the heat subjects. These steps are preferred as in WO 2005/078023 A2 (P. 7, Z. 24 - p. 10, line 29).
  • a particularly suitable preparation according to variant b) of the abovementioned production process consists in subjecting the crude pigments to a kneading in the presence of a recrystallizing organic solvent and an inorganic salt, as in WO 2005/078023 A2 (P 10, Z. 31 - p 12, Z 33).
  • pigment synergists can be added already in the pre-comminution step, but also only in the recrystallization step.
  • Pigment synergists are compounds which contain all or part of the pigment chromophore in their molecular structure.
  • the structure of the pigment synergist does not have to agree with the structure of the pigment whose crystallization is to be influenced.
  • pigment synergists based on the perylene structure but, for example, those based on the copper phthalocyanine structure can also be used.
  • Particularly suitable pigment synergists are in the WO 2005/078023 A2 (Page 13, line 12 - page 14, line 14).
  • pigment synergists often also has a positive effect on the dispersibility and flocculation stability of the perylene pigments according to the invention in the medium which is processed into the fiber or in the fiber itself and thus also on the rheology of these systems.
  • the dispersibility of the perylene pigments of the invention can also be improved by covering the pigment surface with conventional additives.
  • additives based on natural and synthetic waxes are also particularly suitable for plastic coloration.
  • waxes based on polyethylene and of polypropylene which may also be oxidized, of polyethylene oxide, of ethoxylated fatty alcohols, of polyethylene oxide / polypropylene oxide / block copolymers, of fatty acid esters (for example montan waxes), of fatty acid amides and of ethylene / vinyl acetate copolymers may be mentioned.
  • The, in particular black, IR-transparent colorants for example the dye mixtures or pigments, in particular perylene pigments, are outstandingly suitable for dyeing fibers.
  • the colorants are incorporated into the fibers.
  • the black perylene pigments described above are preferably used.
  • the fibers may consist of high molecular weight organic and inorganic substances of natural and synthetic origin.
  • the incorporation of the IR-transparent colorants, in particular the black perylene pigments, into the fibers can be carried out, for example, before the actual fiber formation in the high molecular weight organic or inorganic substances.
  • the IR-transparent colorants, in particular black perylene pigments incorporated into the fabrics during fiber production and further, the IR-transparent colorants, in particular perylene pigments, even after the production of the fibers in the fibrous organic or inorganic substances are incorporated.
  • the fibers of the invention generally contain from 0.001 to 10 wt .-% IR-transparent colorant (or mixtures thereof) based on the total weight of fiber and colorant.
  • the fibers Preferably, contain from 0.01 to 5 wt .-%, particularly preferably from 0.1 to 2 wt .-% and in particular from 0.5 to 1.5 wt .-%, IR-transparent colorant (or mixtures thereof ) Based on the total weight of fiber and colorant.
  • plastics for the fibers according to the invention are polyolefins (polyethylene, polypropylene), polyesters (PET, PBT), polyamides or SAN. Very particular preference is given to polyolefins, polyesters, SAN.
  • dyeable plastics are the polymers per se, their co-polymers or blends, which may be present as a powder, plastic compositions, melts or in the form of spinning solutions to understand.
  • the IR-transparent colorants in particular the perylene pigments in the fibers, for example, even before the actual fiber formation in the plastics, e.g. in the form of pigment preparations (compound, masterbatch), in concentrations of generally from 1 to 90% by weight of colorant, based on the total amount of plastic and colorant, preferably from 5 to 80% by weight, very preferably from 5 to 40 % By weight.
  • the IR-transparent colorants, in particular black perylene pigments during the fiber production into the plastics, for example in the form of a dispersion, and furthermore the colorants, in particular perylene pigments, can also be incorporated into the plastics after the fibers have been produced.
  • the colorant or the colorant mixture is incorporated in the form of pigment preparations.
  • the pigment preparations may, of course, contain further additives customary for plastics, such as HALS compounds, UV absorbers (for example benzotriazoles, benzophenols, cyanoacrylates), flame retardants, antistatic agents or (phenolic and phosphitic) antioxidants.
  • HALS compounds for example benzotriazoles, benzophenols, cyanoacrylates
  • flame retardants for example benzotriazoles, benzophenols, cyanoacrylates
  • antistatic agents or (phenolic and phosphitic) antioxidants for example benzotriazoles, benzophenols, cyanoacrylates
  • antioxidants for example benzotriazoles, benzophenols, cyanoacrylates
  • the incorporation of the IR-transparent colorants, in particular the perylene pigments, in the pigment preparations of the plastics prior to the actual fiber formation can be carried out by any known method, e.g. by co-extruding (preferably with a single or twin screw extruder), rolling, kneading, pressing or milling.
  • the plastics are then processed into fibers.
  • the manufacturing process of the fibers from the plastics is arbitrary.
  • the fibers can be made by spinneret extrusion. It is possible to use all processes known to the person skilled in the art in which the, in particular black, colorants, in particular perylene pigments, remain in the fiber essentially or for the most part even after the preparation.
  • the fibers of the invention may optionally contain further additives. Suitable are the usual additives, such.
  • additional additives such as Example, other (non-formulas la and / or Ib corresponding or above) pigments, other (non-dichromic, trichrome or multichrome) dyes or dye mixtures, nucleating agents, fillers or reinforcing agents, anti-fogging agents, biocides, antistatic agents, UV absorbers, Light stabilizers, flame retardants or antioxidants.
  • the person skilled in the art preferably selects from the suitable additives which have substantially no absorption in the wavelength range from 760 nm to 1500 nm.
  • those additives which are transparent to heat radiation or those which have highly reflective properties in the wavelength range mentioned are suitable.
  • those additives are considered, which are moreover stable under the processing conditions and do not adversely affect the polymer melt.
  • the person skilled in the art preferably selects additives such that they are transparent in the range from 760 nm to 1500 nm.
  • the determination of the transmission in said wavelength range is carried out according to the method described above.
  • the additives have a high heat resistance.
  • suitable additives are those which have strongly reflective properties with respect to heat radiation in the wavelength range of the near infrared.
  • Highly reflective additives ensure that the IR radiation is reflected and emitted.
  • the reflective additives cause only a change in the beam path of the radiation in the wavelength range of the near infrared, before the heat radiation is radiated afterwards.
  • titanium dioxide pigments and inorganic mixed phase pigments eg Sicotan® pigments, BASF
  • near infrared highly reflective foreign particles such as aluminum flakes and luster pigments, eg
  • those based on coated aluminum flakes or inorganic salts / oxides such as chromium titanates, nickel titanates.
  • the additives are contained in an amount of 0 to 30 wt .-% based on the total weight of fiber and additives. Preference is given to using from 2 to 20 wt .-%, in particular from 5 to 15 wt .-% of additives.
  • Suitable pigments other than additives are inorganic pigments, for example titanium dioxide in its three modifications rutile, anatase or brookite, ultramarine blue, iron oxides, bismuth vanadates or carbon black and the class of organic pigments, for example compounds from the class of quinophthalones, diketopyrolopyrols.
  • Dyes are to be understood as meaning all colorants which dissolve completely in the plastic used or are present in a molecularly disperse distribution and can thus be used for the highly transparent, non-scattering coloring of polymers. Also to be considered as dyes organic compounds having a fluorescence in the visible part of the electromagnetic spectrum as fluorescent dyes.
  • Suitable nucleating agents include, for example, inorganic substances, for example talc, metal oxides such as titanium dioxide or magnesium oxide, phosphates, carbonates or sulfates of, preferably, alkaline earth metals; organic compounds such as mono- or polycarboxylic acids and their salts such. For example, 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymeric compounds, such as ionic copolymers ("ionomers").
  • Suitable fillers or reinforcing agents include, for example, calcium carbonate, silicates, talc, mica, kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and flours or fibers of other natural products, synthetic fibers.
  • fibrous or powdery fillers are also carbon or glass fibers in the form of glass fabrics, glass mats or glass silk rovings, chopped glass, glass beads and wollstonite into consideration. The incorporation of glass fibers can take place both in the form of short glass fibers and in the form of continuous fibers (rovings).
  • Suitable antistatic agents include, for example, amine derivatives such as N, N-bis (hydroxyalkyl) alkylamines or alkylene amines, polyethylene glycol esters and ethers, ethoxylated carboxylic ester and amide and glycerol mono- and distearates, and mixtures thereof.
  • titanium dioxide is present as additive.
  • TiO 2 is contained in an amount of 2 to 20% by weight based on the total weight of fiber and additives. Preference is given to using 5 to 15 wt .-% based on the total weight of fiber and additives to TiO 2 .
  • fibers according to the invention which, in addition to polyesters, in particular PET, or SAN, contain black perylene pigments, in particular those of the formulas Ia and / or Ib, and also TiO 2 .
  • Such fibers are particularly suitable as a finish for dull or gray fibers.
  • thermal management with black NIR-transparent pigments is that the fibers allow the NIR radiation to pass unimpeded. Frequently, the transmitted radiation is then reflected or re-emitted at a light, in particular white, surface lying behind the material containing the fibers according to the invention. Thus, the radiation is not absorbed in the material or in the volume surrounded by the material and there is no "heating" of the material or space behind the material, despite the dark, for example, black color impression left by the material in the viewer.
  • the fibers according to the invention in particular those based on plastics, also contain small amounts of TiO 2 in addition to the IR-transparent colorants, in particular black perylene pigments.
  • An advantage of this embodiment of the fibers according to the invention is that it is not necessary to arrange a light surface behind the material containing these fibers. Surprisingly, the low proportion of TiO 2 is sufficient to partially or even completely suppress heating of the material and thus to carry out heat management with the aid of these materials.
  • An interesting area is the use in dark, such as black, brown or gray materials, especially textiles and fabrics, indoors, which are subject to the influence of light, especially solar radiation.
  • dark such as black, brown or gray materials, especially textiles and fabrics, indoors, which are subject to the influence of light, especially solar radiation.
  • these are panels, seats or seat covers in the interior of vehicles, especially cars, buses or trucks containing materials containing dark-colored fibers.
  • the textiles according to the invention are dark car seat covers which rest on a light foam material, for example polyurethane foam.
  • these textiles and fabrics find application in dark, especially black, colored awnings, awnings, blinds or curtains.
  • these textiles and fabrics find application in dark, especially black, colored geotextiles, mulch films, tents or textiles and fabrics for outdoor applications.
  • the fibers according to the invention with perylene pigments of the formulas Ia and / or Ib in which R 1 and R 2 are phenylene are particularly suitable for all these applications since these pigments have a pronounced absorption in the visible range from 400 to 800 nm and in the NIR range (Band edge about 850 nm) are transparent.
  • a further subject of the invention are therefore materials containing the fibers according to the invention, for example textiles or fabrics.
  • a masterbatch was prepared in PBT containing 40% by weight IR-transparent colorant based on the total amount of PBT and IR-transparent colorant. This masterbatch was used in a 1:10 ratio to make a PET fiber. The fibers were made by spinneret extrusion and then air textured. The spectroscopic measurements (re-emission measurements) were carried out on a wound fiber bundle (integrating sphere 300-2500 nm).
  • the preparation of the colorant F1 to F9 was carried out as in WO 2005/078023 A2 specified.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
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Claims (15)

  1. Fibres contenant des colorants transparents aux IR et des additifs, dans lesquelles le matériau des fibres contient 2 à 20 % en poids de dioxyde de titane en tant qu'additif par rapport au poids total des fibres et des additifs.
  2. Fibres selon la revendication 1, dans lesquelles il s'agit de fibres noires, brunes ou grises.
  3. Fibres selon la revendication 1 ou 2, dans lesquelles les colorants transparents aux IR sont des colorants di-, tri- ou multichromes.
  4. Fibres selon la revendication 1 ou 2, dans lesquelles les colorants transparents aux IR sont des pigments.
  5. Fibres selon la revendication 4, dans lesquelles les pigments sont des pigments de pérylène et contiennent un des isomères de formule Ia ou Ib
    Figure imgb0031
    Figure imgb0032
     dans lesquelles les radicaux R1 et R2 signifient indépendamment l'un de l'autre phénylène, naphtylène ou pyridylène, qui peuvent chacun être substitués une ou plusieurs fois par alkyle en C1-C12, alcoxy en C1-C6, hydroxy et/ou halogène, ou un mélange des deux isomères.
  6. Fibres selon les revendications 1 à 5, dans lesquelles les fibres contiennent 0,001 à 10 % en poids de colorant transparent aux IR, par rapport au poids total des fibres et du colorant.
  7. Fibres selon les revendications 1 à 6, dans lesquelles le matériau des fibres est un plastique.
  8. Fibres selon les revendications 1 à 6, dans lesquelles le matériau des fibres est du verre.
  9. Procédé de fabrication de fibres selon la revendication 1, caractérisé en ce que les fibres sont colorées en masse à l'aide de colorants transparents aux IR.
  10. Utilisation de fibres selon la revendication 1 dans la gestion de la chaleur.
  11. Utilisation de fibres selon la revendication 1 pour la fabrication de textiles ou de tissus.
  12. Matériaux contenant des fibres selon la revendication 1.
  13. Matériaux selon la revendication 12, dans lesquels un autre matériau à surface claire ou blanche est présent derrière les fibres.
  14. Matériaux selon la revendication 12 ou 13, dans lesquels les matériaux sont des textiles ou des tissus.
  15. Matériaux selon la revendication 14, dans lesquels les textiles ou les tissus sont des marquises, des stores, des volets roulants, des rideaux, des géotextiles, des feuilles de paillis, des tentes, des textiles et des tissus pour les applications d'extérieur, des vêtements ou des revêtements de sièges.
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EP08157581 2008-06-04
EP20090757524 EP2288742B1 (fr) 2008-06-04 2009-06-02 Coloration noire des fibres dans la masse
PCT/EP2009/056748 WO2009147143A2 (fr) 2008-06-04 2009-06-02 Coloration noire des fibres dans la masse

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EP2288742B1 true EP2288742B1 (fr) 2014-12-03

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WO2009147143A3 (fr) 2011-02-03
JP5615269B2 (ja) 2014-10-29
CN102057085A (zh) 2011-05-11
EP2288742A2 (fr) 2011-03-02
JP2011523983A (ja) 2011-08-25
US9765446B2 (en) 2017-09-19
BRPI0913244A2 (pt) 2016-01-19
WO2009147143A2 (fr) 2009-12-10
US20110064935A1 (en) 2011-03-17
MX2010013106A (es) 2010-12-20

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