CN114245833A - Infrared absorbing fiber, woven or nonwoven fabric - Google Patents
Infrared absorbing fiber, woven or nonwoven fabric Download PDFInfo
- Publication number
- CN114245833A CN114245833A CN202080057910.7A CN202080057910A CN114245833A CN 114245833 A CN114245833 A CN 114245833A CN 202080057910 A CN202080057910 A CN 202080057910A CN 114245833 A CN114245833 A CN 114245833A
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- CN
- China
- Prior art keywords
- infrared
- absorbing
- fiber
- woven
- pigment
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- 239000000835 fiber Substances 0.000 title claims abstract description 232
- 239000002759 woven fabric Substances 0.000 title claims abstract description 136
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 69
- 239000000049 pigment Substances 0.000 claims abstract description 139
- 239000004744 fabric Substances 0.000 claims description 90
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 23
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 15
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 229910052716 thallium Inorganic materials 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052794 bromium Inorganic materials 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 229910052733 gallium Inorganic materials 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 79
- 235000019646 color tone Nutrition 0.000 description 65
- 239000000976 ink Substances 0.000 description 51
- 238000000034 method Methods 0.000 description 43
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- 229920005601 base polymer Polymers 0.000 description 3
- VPXSRGLTQINCRV-UHFFFAOYSA-N dicesium;dioxido(dioxo)tungsten Chemical compound [Cs+].[Cs+].[O-][W]([O-])(=O)=O VPXSRGLTQINCRV-UHFFFAOYSA-N 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
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- 125000005843 halogen group Chemical group 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
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- VVRQVWSVLMGPRN-UHFFFAOYSA-N oxotungsten Chemical class [W]=O VVRQVWSVLMGPRN-UHFFFAOYSA-N 0.000 description 2
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- 230000000737 periodic effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
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- 229910052712 strontium Inorganic materials 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
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- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001851 biosynthetic effect Effects 0.000 description 1
- 239000012496 blank sample Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 239000012141 concentrate Substances 0.000 description 1
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- 150000002148 esters Chemical class 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
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- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
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- 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
- D03D15/233—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 protein-based, e.g. wool or silk
-
- 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
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- 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
- 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
- D01F1/10—Other agents for modifying properties
-
- 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
- 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
- D03D15/54—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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/48—Oxides or hydroxides of chromium, molybdenum or tungsten; Chromates; Dichromates; Molybdates; Tungstates
-
- 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
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
-
- 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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- 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
- D10B2401/04—Heat-responsive characteristics
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- 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
- D10B2401/14—Dyeability
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- 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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
- Multicomponent Fibers (AREA)
Abstract
An infrared absorbing fiber, woven or nonwoven fabric comprising an infrared absorbing pigment, wherein the infrared absorbing fiber, woven or nonwoven fabric has a CIE1976 color space L of 30 or more, and the color difference Delta E in the CIE1976 color space between the infrared absorbing fiber, woven or nonwoven fabric and the infrared absorbing fiber, woven or nonwoven fabric is 10 or less when the infrared absorbing pigment is not contained therein.
Description
Technical Field
The present invention relates to an infrared absorbing fiber, woven fabric or nonwoven fabric.
Background
Fibrous articles having the property of absorbing light and releasing heat are well known. For example, since an infrared absorbing pigment such as carbon black has a property of absorbing infrared rays and emitting heat, an exothermic fiber is obtained by kneading the pigment into a fiber or by coating the pigment.
However, fibers containing carbon black as an infrared absorbing pigment have a problem that the color tone thereof becomes extremely dark due to the black color thereof, and design of a bright color tone cannot be applied.
In this regard, patent document 1 describes an infrared-absorbing fiber containing Cs0.33WO3The fiber is a fiber containing, as an infrared-absorbing pigment, a composite tungsten oxide fine particle represented by (A) wherein the content of the fine particle is 0.001 to 80 wt% with respect to the solid content of the fiber.
The composite tungsten oxide is bright in color tone compared with black of carbon black. Therefore, the fiber product containing the composite tungsten oxide has an advantage that the degree of freedom in design is large as compared with the fiber product containing carbon black.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2006-132042
Disclosure of Invention
Problems to be solved by the invention
Composite tungsten oxides, e.g. Cs0.33WO3When a fiber product exhibiting a visually recognizable bluish green color under visible light and having a bright color tone is applied (hereinafter, referred to as CsWO), the color tone of the obtained fiber product may be changed.
In general, in the case of a heat-radiating cold protective clothing, it is not necessary to form the entire clothing with a heat-radiating fiber product, and only a portion of the clothing where heat radiation is large to contribute to cold resistance is used as the heat-radiating fiber product, and the other portion is formed with a normal fiber product. In this case, if the heat-emitting fiber product is used together with a fiber product containing CsWO, a difference in color tone may occur between a portion containing CsWO and a portion not containing CsWO, which may cause a problem in design. This tendency is remarkable when the color tone of the target clothing is particularly bright.
Further, according to patent document 1, as the content of CsWO in the infrared absorbent fiber, a very wide range of 0.001 to 80 wt% based on the solid content of the fiber is included, and there are cases where the heat radiation property is insufficient and excessive when the fiber is used as a cold protective clothing.
The present invention has been made in view of the above circumstances. Accordingly, an object of the present invention is to provide a fiber, a woven or nonwoven fabric, which contains an infrared-absorbing pigment, has infrared-absorbing and heat-releasing properties, and can provide preferable design properties when applied to clothing such as cold protective clothing.
Means for solving the problems
The present invention for solving the above problems is as follows.
[ solution 1] an infrared-absorbing fiber, woven or nonwoven fabric comprising an infrared-absorbing pigment,
the infrared absorbing fiber, woven or nonwoven fabric has a CIE1976 color space L of 30 or more, and
the color difference Δ E in the CIE1976 color space between the infrared-absorbing fiber, woven or nonwoven fabric and the infrared-absorbing fiber, woven or nonwoven fabric is 10 or less when the infrared-absorbing pigment is not contained.
The infrared absorbing fiber, woven or nonwoven fabric according to claim 1 of claim 2 has a CIE1976 color space in which L is more than 90 and satisfies at least 1 of the following (i) to (iv):
(i) a in CIE1976 color space is-10 or less,
(ii) A in CIE1976 color space is more than 10,
(iii) B in CIE1976 color space is-10 or less, and
(iv) b in the CIE1976 color space is 10 or more.
Scheme 3 the infrared absorbing fiber, woven fabric or nonwoven fabric according to scheme 1, wherein L in the CIE1976 color space is 90 or less.
[ solution 4] the infrared absorbing fiber, woven or nonwoven fabric according to any one of the solutions 1 to 3, wherein,
the infrared-absorbing fiber contains the infrared-absorbing pigment in an amount of 0.01 to 0.50 mass% based on the total mass of the infrared-absorbing fiber,
the infrared ray absorbing woven or nonwoven fabric has an infrared ray absorbing pigment content of 0.05g/m per unit area2Above and 0.50g/m2The following.
[ solution 5] the infrared absorbing fiber, woven or nonwoven fabric, or the like according to any one of the aspects 1 to 4, wherein the infrared absorbing pigment contains 1 or more selected from the group consisting of a composite tungsten oxide represented by general formula (1) and a tungsten oxide having a Magneli phase represented by general formula (2),
general formula MxWyOz (1)
{ formula (1) wherein M is at least 1 element selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I, W is tungsten, O is oxygen, x, y and z are each a positive number, 0< x/y < 1, and 2.2 < z/y < 3.0}
General formula WyOz (2)
{ formula (2) wherein W is tungsten, O is oxygen, y and z are each a positive number, and z/y is 2.45. ltoreq. 2.999}
[ solution 6] an infrared absorbent fiber according to any one of the claims 1 to 5.
[ solution 7] an infrared-absorbing woven or nonwoven fabric comprising the infrared-absorbing fiber according to claim 6.
[ solution 8] an infrared-absorbing woven or nonwoven fabric comprising the infrared-absorbing fiber according to claim 6 and a fiber containing no infrared-absorbing pigment,
the infrared-absorptive-pigment-free fiber has a structure in which the infrared-absorptive pigment is removed from the infrared-absorptive fiber.
[ solution 9] an infrared-absorbing woven or nonwoven fabric according to any one of the claims 1 to 5.
The infrared absorbent woven or nonwoven fabric according to claim 9 of claim 10 is composed of infrared absorbent fibers containing an infrared absorbent pigment.
[ solution 11] the infrared absorbent woven or nonwoven fabric according to the solution 9, which comprises an infrared absorbent fiber containing an infrared absorbent pigment and a fiber containing no infrared absorbent pigment,
the infrared-absorptive-pigment-free fiber has a structure in which the infrared-absorptive pigment is removed from the infrared-absorptive fiber.
[ solution 12] an infrared-absorbing garment comprising the infrared-absorbing knitted or nonwoven fabric according to any one of the claims 7 to 11.
[ solution 13 ] an infrared-absorbing garment comprising the infrared-absorbing woven or nonwoven fabric according to any one of the aspects 7 to 11 and a woven or nonwoven fabric containing no infrared-absorbing pigment,
the woven or nonwoven fabric containing no infrared absorbing pigment has a structure in which the infrared absorbing pigment is removed from the woven or nonwoven fabric.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, there is provided a fiber, a woven or nonwoven fabric containing an infrared-absorbing pigment and having a property of absorbing infrared rays and emitting heat, which can provide a preferable design property when applied to clothing such as cold protective clothing.
Detailed Description
The infrared absorbing fiber, woven fabric or nonwoven fabric of the present invention is an infrared absorbing fiber, woven fabric or nonwoven fabric containing an infrared absorbing pigment,
l in CIE1976 color space is more than 30, and
the color difference Δ E in the CIE1976 color space between the infrared-absorbing fiber, woven or nonwoven fabric and the infrared-absorbing fiber, woven or nonwoven fabric is 10 or less when the infrared-absorbing pigment is not contained.
The infrared absorbing fiber, woven fabric or nonwoven fabric of the present invention may be the following infrared absorbing fiber, woven fabric or nonwoven fabric:
l in CIE1976 color space exceeds 90, and satisfies at least 1 of the following (i) to (iv):
(i) a in CIE1976 color space is-10 or less,
(ii) A in CIE1976 color space is more than 10,
(iii) B in CIE1976 color space is-10 or less, and
(iv) b in the CIE1976 color space is 10 or more.
The infrared absorbing fiber, woven fabric or nonwoven fabric of the present invention may be the following infrared absorbing fiber, woven fabric or nonwoven fabric:
l in CIE1976 color space is 90 or less.
In the present specification, the term "woven fabric" is a concept including both a fabric (woven fabric) and a knit (knitted fabric). The term "nonwoven fabric" refers to a sheet-like material formed by winding fibers, and is a concept not including woven fabrics and knitted fabrics. Hereinafter, the fibers, woven fabrics and nonwoven fabrics are collectively referred to as "fibrous products" in some cases.
In the present specification, an infrared-absorbing fiber product having a color difference Δ E in CIE1976 color space of 30 or more may be referred to as "L-characteristic", and an infrared-absorbing fiber product having a color difference Δ E in CIE1976 color space of 10 or less from that of the infrared-absorbing fiber product in the absence of the infrared-absorbing pigment may be referred to as "Δ E-characteristic".
Note that the color difference Δ E is: the color in CIE1976 color space of the infrared-absorbing fiber product was defined as (L, a, b), and the color in CIE1976 color space of the infrared-absorbing fiber product without the infrared-absorbing pigment was defined as (L0*，a0*，b0And (x) is a value represented by the following numerical formula.
ΔE＝{(L*-L0*)2+(a*-a0*)2+(b*-b0*)2}1/2
In order to solve the problems of the present invention,
color tone of fiber product containing no infrared absorbing pigment, and
amount of infrared absorbing pigment contained in infrared absorbing fiber product, and
change in color tone of a fibrous article when a defined amount of an infrared-absorbing pigment is included, and
exothermicity of fibrous articles comprising defined amounts of infrared-absorbing pigments
The relationship (2) was studied in detail.
As a result, the following were found:
(1) in the deep-tone fiber product, the change in the color tone of the fiber product between the case of not containing the infrared absorbing pigment and the case of containing the infrared absorbing pigment is not problematic from the beginning;
(2) among fiber products having a bright color tone, particularly fiber products having a bright color and a small chroma are more easily visually recognized as a change in color tone due to the inclusion of an infrared absorbing pigment than fiber products having a bright color and a large chroma; and the combination of (a) and (b),
(3) the fiber product with bright color tone can exert comfortable heat release performance as cold protective clothing by including the infrared absorption pigment in the range that the change of color tone is difficult to be identified.
The present invention has been made based on the above findings.
In the infrared-absorbing fiber product of the present invention, when L in CIE1976 color space is 30 or more, the color tone of the fiber product is bright to the extent that a change in color tone may be problematic by including a significant amount of the infrared-absorbing pigment. Therefore, even if a significant amount of the infrared absorbing pigment is contained, it is difficult to recognize the change in color tone, and a fiber product of a dark color tone with L x lower than 30 is excluded from the scope of the present invention.
In the infrared-absorbing fiber product of the present invention, the color difference Δ E in the CIE1976 color space between when the infrared-absorbing pigment is contained and when the infrared-absorbing pigment is not contained is 10 or less, and the fiber product contains the infrared-absorbing pigment in a range where it is difficult to recognize a change in color tone. The fiber product satisfying the above characteristics can exhibit favorable design properties by not only having comfortable heat radiation properties as a cold protective clothing but also reducing the difference in color tone between the fiber product and a portion not containing the infrared absorbing pigment.
When the lightness of the color tone of the infrared-absorbing fiber product of the present invention is particularly high, the change in the color tone of the fiber product can be easily visually recognized by including the infrared-absorbing pigment. Therefore, when the lightness of the color tone of the fiber product is particularly high, the chroma is advantageously high from the viewpoint of difficulty in visual recognition of a change in the color tone. Therefore, when the brightness of the infrared absorbent fiber product of the present invention is particularly high, for example, when L in CIE1976 color space exceeds 90, at least 1 of the following features (i) to (iv) is preferably satisfied:
(i) a in CIE1976 color space is-10 or less,
(ii) A in CIE1976 color space is more than 10,
(iii) B in CIE1976 color space is-10 or less, and
(iv) b in CIE1976 color space is more than 10
On the other hand, when the brightness of the infrared absorbent fiber product of the present invention is not particularly high, for example, when L x in CIE1976 color space is 90 or less, the change in color tone due to the inclusion of the infrared absorbent pigment is not particularly easily visually recognized. Therefore, in this case, any value of a or b may be suitable for use in the present invention.
L, a, and b of the fiber product in the CIE1976 color space can be measured according to the methods described in the examples described later.
The present invention will be described in detail below.
Infrared-absorbing fiber product
The infrared absorbing fiber product of the present invention is an infrared absorbing fiber product containing an infrared absorbing pigment,
l in CIE1976 color space is more than 30, and
the color difference Δ E in CIE1976 color space between an infrared-absorbing fiber product and an infrared-absorbing fiber product containing no infrared-absorbing pigment is 10 or less.
The infrared absorbing fiber product of the present invention may be an infrared absorbing fiber product comprising:
l in CIE1976 color space exceeds 90, and satisfies at least 1 of the following (i) to (iv):
(i) a in CIE1976 color space is-10 or less,
(ii) A in CIE1976 color space is more than 10,
(iii) B in CIE1976 color space is-10 or less, and
(iv) b in the CIE1976 color space is 10 or more.
The infrared absorbing fiber product of the present invention may be an infrared absorbing fiber product comprising:
l in CIE1976 color space is 90 or less.
The color difference Δ E in CIE1976 color space between an infrared-absorbing fiber product and an infrared-absorbing fiber product, when the infrared-absorbing fiber product does not contain the infrared-absorbing pigment, is 10 or less. When Δ E between the two is 10 or less, it is difficult to visually recognize a change in color tone of the fiber product due to the inclusion of the infrared absorbing pigment. The value of Δ E may be 9 or less, 8 or less, 6 or less, 5 or less, or 4 or less. The value of Δ E may be 0 or more, more than 0, 0.5 or more, 1 or more, 2 or more, or 3 or more.
In the infrared-absorbing fiber product, when L in CIE1976 color space exceeds 90, that is, when the color tone of the fiber product is particularly bright, if at least 1 of the above (i) to (iv) is satisfied, it is difficult to visually recognize the change in color tone of the fiber product due to the inclusion of the infrared-absorbing pigment. When L is more than 90, the color difference Δ E may be 5 or less, 4.5 or less, 4 or less, 3.5 or less, or 3 or less, and may be 0 or more, more than 0, 0.1 or more, 0.2 or more, 0.3 or more, 0.4 or more, or 0.5 or more, from the viewpoint of making visual recognition of a change in color tone more difficult.
However, if L is more than 90, if it is difficult to visually recognize the change in color tone reliably, the content of the infrared absorbing pigment in the fiber product is limited, and the heat radiation property may be limited. From this viewpoint, L in CIE1976 color space of the infrared absorbing fibrous product may be 90 or less.
The L may be appropriately set within the above range according to the desired color tone of the fiber product, and for example, in the case of a fiber product having a red system color tone, L is 90 or less, and may be 80 or less, 70 or less, 60 or less, or 50 or less. In the case of a fiber product having a yellow-based color tone, L is 90 or less, and may be 89 or less, 88 or less, 87 or less, or 86 or less. In the case of a fiber product having a blue system color tone, L is 90 or less, and may be 80 or less, 60 or less, or 40 or less.
When L is 90 or less, the color tone of the fiber product is bright, and when L exceeds 80, for example, the color difference Δ E may be 8 or less, 7 or less, 6 or less, or 5 or less, in order to ensure difficulty in visual recognition of a change in color tone. On the other hand, when L is 80 or less, the color difference Δ E is 10 or less, and visual recognition of a change in color tone becomes extremely difficult.
Fiber
The infrared absorbing fiber product of the present invention comprises a fiber and an infrared absorbing pigment.
The fiber in the infrared absorbent fiber product of the present invention can be suitably selected from, for example, synthetic fibers, semi-synthetic fibers, natural fibers, bio-synthetic fibers, inorganic fibers, and the like, and mixed filaments composed of a plurality of these fibers. Among them, synthetic fibers are preferable in consideration of dispersibility of the infrared absorbing pigment, heat insulating properties of the fiber product, and the like.
Examples of the synthetic fibers in the present invention include polyester fibers, polyolefin fibers, acrylic fibers, polyamide fibers, polyether ester fibers, polyvinyl alcohol fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, and the like, and these fibers can be appropriately selected from among them and used.
The polyester fiber may be, for example, a fiber such as polyethylene terephthalate (PET), polybutylene terephthalate, or polyethylene naphthalate.
The polyolefin-based fiber may be, for example, polyethylene, polypropylene, polystyrene, or the like.
The acrylic fiber may be, for example, a fiber formed of polyacrylonitrile, an acrylonitrile/vinyl chloride copolymer, or the like.
The polyamide-based fiber may be, for example, a fiber made of nylon, nylon 6, nylon 66, nylon 11, nylon 12, nylon 610, aramid, or the like.
The fibers of the present invention may have any shape in cross-section. For example, the shape may be circular, polygonal, flat, hollow, Y-shaped, star-shaped, core-sheath-shaped, or the like.
The fibers of the present invention may be short fibers or long fibers.
Infrared absorptive pigment
The infrared absorbing pigment in the infrared absorbing fibrous product of the present invention preferably has a property of absorbing infrared rays, preferably near infrared rays, and emitting heat, and is bright in color tone, and does not excessively impair the degree of freedom in designing the infrared absorbing fibrous product of the present invention.
Examples of such an infrared-absorbing pigment include:
general formula MxWyOz (1)
{ formula (1) wherein M is at least 1 element selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I, W is tungsten, O is oxygen, x, y and z are each a positive number, 0< x/y < 1, and 2.2 < z/y < 3.0}
The shown composite tungsten oxide;
general formula WyOz (2)
{ formula (2) wherein W is tungsten, O is oxygen, y and z are each a positive number, and z/y is 2.45. ltoreq. 2.999}
Tungsten oxide with a magneli phase as shown;
for example, 1 or more selected from them can be appropriately selected and used.
Here, the alkali metal element means an element of group 1 of the periodic table other than a hydrogen atom. The alkaline earth metal element means an element of group 2 of the periodic table other than Be and Mg. The rare earth elements refer to Sc, Y and lanthanides.
The composite tungsten oxide represented by the general formula (1) contains an element M. Therefore, since free electrons are generated and an absorption band derived from the free electrons appears in a near-infrared wavelength region, the material is suitable as a material that absorbs near-infrared light having an absorption wavelength of about 1000nm and emits heat.
If the value of x/y, which indicates the amount of addition of the element M, exceeds 0, a sufficient amount of free electrons are generated, and a sufficient near-infrared absorption effect can be obtained. The larger the amount of element M added, the more the amount of free electrons supplied increases, and the near-infrared absorption effect also increases, but the value of x/y becomes saturated when it is about 1. When the value of x/y is 1 or less, the formation of an impurity phase in the fine particle-containing layer can be avoided, and therefore, it is preferable. The value of x/y is preferably 0.001 or more, 0.2 or more, or 0.30 or more, and the value is preferably 0.85 or less, 0.5 or less, or 0.35 or less. The value of x/y is preferably 0.33.
In particular, when the element M In the general formula (1) is 1 or more of Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe and Sn, it is preferable from the viewpoint of improvement In optical properties and weather resistance as a near-infrared absorbing material, and when M is Cs, it is particularly preferable.
In CsxWyOz(0.25. ltoreq. x/Y. ltoreq.0.35, 2.2. ltoreq. z/Y. ltoreq.3.0) is preferable in terms of optical properties in the near infrared region and weather resistance in that the lattice constant is such that the a axis is
Above and
and c-axis is
Above and
the following.
When the composite tungsten oxide represented by the general formula (1) has a hexagonal crystal structure or is composed of a hexagonal crystal structure, the infrared absorbing material fine particles are preferable because the transmission in the visible light wavelength region is improved and the absorption in the near infrared light wavelength region is improved. When the cation of the element M is added to the pores of the hexagonal crystal, the transmission in the visible wavelength region is improvedAs good, the absorption in the near infrared wavelength region is improved. Here, in general, when an element M having a large ionic radius is added, hexagonal crystals are formed. Specifically, when an element having a large ionic radius, such as Cs, Rb, K, Tl, In, Ba, Sn, Li, Ca, Sr, or Fe, is added, hexagonal crystals are easily formed. However, the additive element is not limited to these elements, and even if it is an element other than these elements, it is only necessary to make the additive element M exist in WO6The hexagonal pores formed by the cells are sufficient.
When the composite tungsten oxide having a hexagonal crystal structure has a uniform crystal structure, the amount of the additive element M added is preferably 0.2 to 0.5, more preferably 0.30 to 0.35, and ideally 0.33 in terms of x/y. Consider that: when the value of x/y is 0.33, the additive element M is disposed in all the hexagonal pores.
The treatment of the composite tungsten oxide represented by the general formula (1) with a silane coupling agent is preferable because it is excellent in dispersibility, near infrared absorbability and transparency in the visible light wavelength region.
Among the tungsten oxides having a magneli phase represented by the general formula (2), the so-called "magneli phase" having a composition ratio in which the value of z/y satisfies the relationship of 2.45. ltoreq. z/y. ltoreq. 2.999 is preferable as a near infrared ray absorbing material because it is chemically stable and has good absorption characteristics in the near infrared ray wavelength region.
In the general formulae (1) and (2), the value of z/y represents the control level of oxygen amount. Since the composite tungsten oxide represented by the general formula (1) satisfies the relationship that z/y has a value of 2.2. ltoreq. z/y. ltoreq.3.0, free electrons are supplied by the addition of the element M even when z/y is 3.0 in addition to the function of the same oxygen control mechanism as that of the tungsten oxide represented by the general formula (2). In the general formula (1), it is more preferable that the value of z/y satisfies the relationship of 2.45. ltoreq. z/y. ltoreq.3.0.
In some cases, a part of oxygen atoms constituting the composite tungsten oxide and the tungsten oxide is replaced with halogen atoms, which are derived from the raw material compounds used in the production of the composite tungsten oxide and the tungsten oxide in the present invention. However, this is not a problem in the practice of the present invention. Therefore, the composite tungsten oxide and the tungsten oxide of the present invention also include a case where a part of oxygen atoms is replaced with halogen atoms.
The infrared-absorbing pigment of the present invention absorbs a large amount of light in the near infrared wavelength region, particularly in the vicinity of a wavelength of 1000nm, and therefore, the transmitted color tone thereof is often changed from a blue color system to a green color system. However, since the color development is light, the infrared-absorbing fiber product of the present invention containing the infrared-absorbing pigment can provide a preferable design property when applied to clothing such as cold protective clothing.
The content of the infrared absorbing pigment in the infrared absorbing fibrous product of the present invention will be described later.
Infrared absorptive fiber
The infrared absorbing fiber product of the present invention contains an infrared absorbing fiber.
Accordingly, the infrared absorbing fiber of the present invention is an infrared absorbing fiber containing an infrared absorbing pigment,
l in CIE1976 color space is more than 30, and
the color difference Δ E in the CIE1976 color space between the infrared-absorbing fiber and the infrared-absorbing fiber is 10 or less when the infrared-absorbing fiber does not contain an infrared-absorbing pigment.
In the present specification, the color tone of the fiber may be measured in a state where the fiber is a plain or tricot gray fabric.
The content of the infrared absorbing pigment in the infrared absorbing fiber of the present invention may be 0.01 mass% or more and 0.50 mass% or less, based on the total mass of the infrared absorbing fiber.
The content of the infrared absorbing pigment suitable for satisfying the Δ E characteristic defined in the present invention and achieving comfortable heat release may be 0.01 mass% or more, 0.05 mass% or more, 0.10 mass% or more, or 0.15 mass% or more, and may be 0.50 mass% or less, 0.40 mass% or less, 0.30 mass% or less, or 0.20 mass% or less, based on the total mass of the infrared absorbing fiber.
Method for producing infrared absorbing fiber
The infrared absorbent fiber of the present invention can be produced by a known suitable method or a method in which suitable modifications are made by those skilled in the art.
The infrared absorbing fiber of the present invention can be produced, for example, by a method such as:
a method (1) of directly blending an infrared absorbing pigment into a base polymer of a synthetic fiber and spinning;
a method (2) for producing a dope by blending an infrared absorbing pigment in a high concentration in a base polymer of a synthetic fiber, and spinning the dope by mixing the dope with a diluent polymer not containing the infrared absorbing pigment;
a method (3) of compounding an infrared absorbing pigment in a spinning dope solution of a base polymer containing a synthetic fiber and spinning;
the method (4) of attaching an infrared absorbing pigment to at least one of the surface and the inside of a fiber not containing an infrared absorbing pigment.
The spinning in the above-mentioned production methods (1), (2) and (3) may be wet spinning using an appropriate solvent or may be dry spinning such as melt spinning.
The infrared absorbing fiber of the present invention may contain a suitable colorant such as a pigment or a dye in order to exhibit a desired color tone. The colorant may be added at any time in the production process of the infrared absorbent fiber.
Application of infrared absorbing fiber
The infrared absorbent fiber of the present invention can be suitably used, for example, for an infrared absorbent woven or nonwoven fabric.
The infrared absorbing woven or nonwoven fabric may be composed of only the infrared absorbing fiber of the present invention, or may be composed of the infrared absorbing fiber of the present invention and other fibers. Here, when the other fibers contain the infrared absorbing pigment, the other fibers may not satisfy at least one of the L-character and the Δ E-character defined in the present invention, or may not contain the infrared absorbing pigment.
However, when the infrared absorbing fiber is applied to clothing, it is preferable to use a fiber having a structure in which the infrared absorbing pigment is removed from the infrared absorbing fiber of the present invention as another fiber in order to meet the gist of the present invention that provides preferable design properties.
That is, the infrared ray absorbing woven or nonwoven fabric comprising the infrared ray absorbing fiber of the present invention is suitable,
is composed of only the infrared-absorbing fiber of the present invention, or
The infrared-absorbing fiber of the present invention is a fiber having a structure in which an infrared-absorbing pigment is removed from the infrared-absorbing fiber.
The infrared absorbing fiber of the present invention may satisfy both of the L-characteristic and the Δ E-characteristic defined in the present invention, and the infrared absorbing woven or nonwoven fabric formed from the infrared absorbing fiber of the present invention may satisfy both of the L-characteristic and the Δ E-characteristic defined in the present invention as a whole woven or nonwoven fabric, or may not satisfy at least one of them.
An infrared-absorbing woven or nonwoven fabric comprising the infrared-absorbing fiber of the present invention, for example
Can be woven fabrics such as plain weave fabrics, satin weave fabrics, twill weave fabrics and the like;
may be knitted fabrics (knit fabrics) such as knitted chain fabrics, heddle eyelet fabrics, heavy flat fabrics, long net fabrics, medium net fabrics, combed fabrics, tricot warp knitted fabrics, etc.;
the nonwoven fabric may be produced by a suitable method such as a dry method, a wet method, a spunbond method, a melt blown method, a thermal bond method, a chemical bond method, a needle punching method, a spunlace method, a stitch bonding method, or a steam jet method.
Infrared absorptive woven or non-woven fabric
The infrared absorbing fibrous product of the present invention comprises an infrared absorbing woven or nonwoven fabric. Hereinafter, the knitted fabric and the nonwoven fabric are collectively referred to as "knitted fabric and the like" in some cases.
The infrared ray absorbing woven or knitted fabric of the present invention is an infrared ray absorbing woven or knitted fabric containing an infrared ray absorbing pigment,
l in CIE1976 color space is more than 30, and
the color difference Δ E in the CIE1976 color space between the infrared-absorbing woven or knitted fabric and the like, when the infrared-absorbing woven or knitted fabric and the like do not contain an infrared-absorbing pigment, is 10 or less.
The content of the infrared ray absorbing pigment in the infrared ray absorbing woven or knitted fabric of the present invention per unit area of the infrared ray absorbing woven or knitted fabric or the like may be 0.05g/m2Above and 0.50g/m2The following.
The content of the infrared absorbing pigment suitable for satisfying the Δ E characteristic defined in the present invention and achieving comfortable heat release may vary depending on the color tone of the infrared absorbing woven fabric or the like. In the case of a woven or knitted fabric having a bright warm color tone, for example, a red or yellow color tone, the value of L x is large, and the change in color tone due to the inclusion of an infrared absorbing pigment in the woven or knitted fabric tends to be easily recognized visually. Therefore, there is a limit to the upper limit of the content of the infrared absorbing pigment for satisfying the Δ E characteristic. In this case, the content of the infrared ray absorbing pigment per unit area may be 0.01g/m for achieving a comfortable heat-releasing property2Above, 0.03g/m2Above, 0.05g/m2Above, 0.06g/m2Above, 0.08g/m2Above, 0.10g/m2Above, or 0.12g/m2As described above, in order to ensure the satisfaction of the Δ E characteristic, the content per unit area of the infrared ray absorbing pigment may be 0.50g/m20.40g/m or less20.30g/m or less20.25g/m or less2Below, or 0.20g/m2The following.
When the color tone is particularly bright, for example, when the L value exceeds 80 or exceeds 90, the content per unit area of the infrared-absorbing pigment may be 0.30g/m from the viewpoint of making the visibility of the change in color tone more difficult20.25g/m or less20.20g/m or less20.15g/m or less20.12g/m or less2Below, or 0.10g/m2The following.
On the other hand, in the case of a woven or knitted fabric having a deep cool color tone, for example, a blue color tone, the value of L x is small, and the change in color tone due to the inclusion of the infrared absorbing pigment in the woven or knitted fabric tends to be difficult to visually recognize. Therefore, even if the infrared-absorbing pigment is contained in a large amount, the Δ E characteristic tends to be easily satisfied. In this case, the amount of the heat-generating agent may be 0.05g/m for comfortable heat-releasing property2Above, 0.06g/m2Above, 0.08g/m2Above, 0.10g/m2Above, or 0.12g/m2As described above, in order to ensure the satisfaction of the Δ E characteristics, the Δ E characteristics may be 0.50g/m20.48g/m or less20.46g/m or less20.44g/m or less20.42g/m or less2Below, or 0.40g/m2The following.
Constitution of infrared ray absorbing knitted Fabric and the like
The infrared absorbent knitted fabric and the like of the present invention may be composed of only infrared absorbent fibers containing an infrared absorbent pigment, or may be composed of infrared absorbent fibers containing an infrared absorbent pigment and fibers containing no infrared absorbent pigment. Here, the fiber not containing the infrared absorbing pigment may have a structure in which the infrared absorbing pigment is removed from the infrared absorbing fiber, or may be formed of a material other than the infrared absorbing fiber.
However, when the infrared absorbing fiber is applied to clothing, it is preferable to use a fiber containing no infrared absorbing pigment in which the infrared absorbing pigment is removed from the infrared absorbing fiber in order to meet the gist of the present invention that provides preferable design properties.
That is, the infrared ray absorbing woven or knitted fabric of the present invention is suitable,
consisting only of infrared-absorbing fibres containing infrared-absorbing pigments, or
The infrared absorbing fiber is composed of an infrared absorbing fiber containing an infrared absorbing pigment and a fiber having a structure in which the infrared absorbing pigment is removed from the infrared absorbing fiber.
The infrared absorbing knitted fabric and the like of the present invention may satisfy both of the L-characteristic and the Δ E-characteristic defined in the present invention as a whole, and the fibers constituting the infrared absorbing knitted fabric and the like may satisfy both of the L-characteristic and the Δ E-characteristic defined in the present invention, or at least one of them.
The infrared absorbing woven or knitted fabric of the present invention is formed using the above-mentioned fibers, for example
Can be woven fabrics such as plain weave fabrics, satin weave fabrics, twill weave fabrics and the like;
may be knitted fabrics (knit fabrics) such as knitted chain fabrics, heddle eyelet fabrics, heavy flat fabrics, long net fabrics, medium net fabrics, combed fabrics, tricot warp knitted fabrics, etc.;
the nonwoven fabric may be produced by a suitable means such as a raising formation method (e.g., dry method, wet method, spunbond method, melt blown method, etc.), a raising bonding method (e.g., thermal bonding method, chemical bonding method, needle punching method, hydroentangling method, stitch bonding method, steam jet method, etc.), or the like.
Method for producing infrared absorptive knitted fabric
The infrared absorbent knitted fabric of the present invention can be produced by a known and suitable method or a method in which appropriate modifications are made by those skilled in the art.
The infrared absorbing knitted fabric of the present invention can be produced, for example, by the following method:
a method (1) for obtaining a knitted fabric by knitting an infrared-absorbing fiber;
a method (2) in which a woven fabric is obtained by weaving infrared-absorbing fibers or infrared-absorbing fibers and fibers containing no infrared-absorbing pigment;
a method (3) in which a nonwoven fabric is obtained by an appropriate means such as a pile forming method or a pile combining method using an infrared absorbing fiber or an infrared absorbing fiber and a fiber containing no infrared absorbing pigment;
the method (4) of applying a coating liquid containing an infrared absorbing pigment to a woven or knitted fabric or the like containing no infrared absorbing pigment.
(4) The coating liquid used in the method of (1) may contain, for example, an infrared absorbing pigment and an appropriate solvent, and may further contain a binder polymer or the like as necessary in order to improve the adhesion of the infrared absorbing pigment to the woven or knitted fabric or the like.
The infrared absorbing woven fabric and the like of the present invention may contain a suitable colorant such as a pigment and a dye in order to exhibit a desired color tone. The colorant can be applied at any time in the production process of an infrared-absorbing woven fabric or the like. In particular, in the method (3) using a coating liquid, a coloring agent may be contained in the coating liquid.
Infrared absorptive garment
The present invention also provides an infrared absorptive garment.
The infrared-absorbing garment of the present invention may contain an infrared-absorbing woven fabric or the like composed of the infrared-absorbing fiber of the present invention, an infrared-absorbing woven fabric of the present invention, or the like.
The infrared-absorbing garment of the present invention may be composed of only the above-mentioned infrared-absorbing knitted fabric or the like, or may be composed of an infrared-absorbing knitted fabric or the like and a knitted fabric or the like containing no infrared-absorbing pigment.
The woven or knitted fabric containing no infrared absorbing pigment may have a structure in which the infrared absorbing pigment is removed from the infrared absorbing woven or knitted fabric, or may be made of a material different from the infrared absorbing woven or knitted fabric.
However, in order to meet the gist of the present invention of providing preferable design, it is preferable to use a structure in which the infrared absorbing pigment is removed from the infrared absorbing woven fabric or the like as the woven fabric or the like not containing the infrared absorbing pigment.
That is, the infrared ray absorptive garment of the invention is suitable for,
composed of an infrared-absorbing woven or knitted fabric containing only an infrared-absorbing pigment, or
The infrared absorbing fabric is composed of an infrared absorbing woven fabric or the like containing an infrared absorbing pigment, and a woven fabric or the like having a structure in which the infrared absorbing pigment is removed from the infrared absorbing woven fabric or the like.
The infrared-absorbing garment of the present invention can be produced by a known method using the above-mentioned knitted fabric or the like.
Examples
1. Infrared absorbing woven fabric
In the following examples and comparative examples, the following raw materials were used to prepare samples.
Infrared absorptive pigment
(Cesium tungsten oxide)
Contains YMS-01A-2' and Cs, manufactured by Sumitomo Metal mining Co., Ltd0.33WO325% by weight, and propylene glycol monomethyl ether acetate as a solvent
The infrared-absorbing pigment Cs is described below0.33WO3Referred to as "CsWO", and a dispersion containing the CsWO and a solvent is referred to as "CsWO dispersion".
(antimony doped tin oxide)
"ATO" manufactured by SHIYAKU PRODUCTS, K.K., having a solid content of 100% by weight
(carbon Black)
Furnace Black R400R manufactured by CABOT corporation, 100% by weight of solid content
Binder polymer
Polyurethane resin solution "RESAMINE ME-44 ELPNS" manufactured by Dari chemical industries, Ltd., solid content 30% by weight
Colour ink
Red: seiko Advance Co., Ltd, "MRJ RX 02510 American red", solid content 37% by weight
Yellow: seiko Advance Co., Ltd., "MRJ RX02 NC200 Primrose Yellow", solid content 37% by weight
Blue: seiko Advance Co., Ltd, "MRJ RX 02440 blue", solid content 37% by weight
White: seiko Advance Co., Ltd., "MRJ RX 02120 white", solid content 64% by weight
Comparative example r1
(1) Preparation of the ink
10.0 parts by weight of a red ink (corresponding to 3.70 parts by weight of a solid content), 54.0 parts by weight of a polyurethane-based resin solution (corresponding to 16.20 parts by weight of a solid content), and 36.0 parts by weight of Methyl Ethyl Ketone (MEK) were mixed to prepare 100 parts by weight of a red base ink having a red ink content of 10% by weight (wet/wet) and a solid content of 19.9% by weight.
(2) Coating of
The ink obtained above was applied to a white grey cloth of polyester 100% (woven fabric of thickness 334 μm, L93.6, a 1.9, b-8.7) using a baker's applicator at a wet film thickness of 200 μm and a coating speed of 5.2 m/min. Subsequently, the sample was left to stand at 100 ℃ for 1 minute to remove the solvent, thereby preparing a standard woven fabric sample.
(3) Evaluation of
(3-1) evaluation of light exothermic Properties
An eye lamp for illumination (model name "PRF 250", rated voltage 100V, rated power consumption 250W, color temperature 3200K, light emission type) manufactured by yazaki electric corporation was placed at a position 30cm from a square woven fabric sample cut into 7cm × 7cm, and light irradiation was performed. The temperatures of the back surface of the woven fabric (the temperature of the surface opposite to the surface on the light irradiation side) before (after 0 minute) and after 5 minutes of light irradiation at this time were measured, and the photothermal properties of the woven fabric sample were calculated from the difference between the two temperatures.
The values of the photothermal properties of the woven fabric samples obtained here were used as the criteria for calculating the photothermal effects of the infrared absorbing pigments in examples R1 and R2 and comparative example R2.
(3-2) evaluation of color tone
The woven fabric samples obtained in the above were measured for L, a and b in the CIE1976 color space using a spectro-colorimeter manufactured by X-Rite, model name "SpectroEye". The measurement was performed in a state where 3 pieces of white interleaving paper (L: 94.84, a: 0.03, b: 0.44, 0.24mm in thickness) were stacked and laid on a woven fabric sample.
The values of L, a, and b of the woven fabric samples obtained here were used as references for calculating the color difference Δ E in examples R1 and R2 and comparative example R2.
The woven fabric samples obtained here were used as a standard for the functional evaluation of color difference in examples R1 and R2 and comparative example R2.
EXAMPLE R1
(1) Preparation of the ink
To 100 parts by weight of a red base ink prepared in the same manner as in comparative example r1, 0.12 part by weight of CsWO dispersion (corresponding to 0.030 part by weight of CsWO) was added to prepare an infrared absorbing red ink having a red ink content of 10 wt% (wet/wet) and a CsWO content per solid content of the ink of 0.15 wt%.
(2) Coating of
A woven fabric sample was prepared by applying a white gray fabric (woven fabric) of 100% polyester in the same manner as in comparative example r1, except that the infrared absorbing red ink obtained above was used. Here, the dry weight of the applied ink was determined from the difference in weight between the fabric sample before coating and the woven fabric sample after coating, and the content of the infrared absorbing pigment per unit area of the woven fabric sample was calculated from the amount of the infrared absorbing pigment contained therein and the area of the coated surface.
(3) Evaluation of
(3-1) evaluation of the effect of light-induced Heat Release
The woven fabric sample of example R1 thus obtained was evaluated for light heat release properties and color tone in the same manner as in comparative example R1. The light exothermic effect of the infrared absorbing pigment in the woven fabric sample of example R1 was calculated by subtracting the light exothermic property of the woven fabric sample of comparative example R1 from the light exothermic property of the woven fabric sample.
(3-2) evaluation of color Difference Δ E
The color difference Δ E between the woven fabric sample of example R1 and the reference of comparative example R1 was calculated from the values of L, a, and b of the woven fabric sample and the values of L, a, and b of the reference woven fabric sample of comparative example R1.
(3-3) evaluation of functionality of color difference
The woven fabric sample obtained in the present example and the standard woven fabric sample obtained in comparative example r1 were placed side by side on a stack of 3 sheets of white base paper (L × 94.84, a × 0.03, b × 0.44, 0.24mm in thickness), and the difference in color tone between the two samples was checked by visual observation under fluorescent lamp irradiation with daylight. The test was performed by 6 test persons, and evaluated according to the following criteria.
A: the case (good) in which there was no test person (0 person) who could recognize the difference in color tone between the two samples
B: the case where the test person is 1 person or 2 persons (may be) capable of recognizing the difference in color tone between the two samples
C: the test person who can recognize the difference between the color tones of both samples was more than 3 persons (failure)
EXAMPLE R2 and COMPARATIVE EXAMPLE R2
An infrared absorbing red ink was prepared in the same manner as in example R1 except that the amounts of the CsWO dispersions added to 100 parts by weight of the red base ink were each as described in table 1, and coating and evaluation of a gray fabric were performed using the infrared absorbing red ink.
Comparative example r3
Except that the amounts of the polyurethane resin solution, the red ink, and MEK were used as described in table 1, a red base ink having a red ink content of 30 wt% (wet/wet) and a solid content of 21.6 wt% was prepared in the same manner as in comparative example r1, and this was used to coat and evaluate a gray fabric.
The photothermal emission properties and the values of L, a, and b of the woven fabric samples obtained here were used as references for calculating the photothermal emission effects and the color difference Δ E of the infrared absorbing pigments in examples R3 and R4 and comparative example R4.
The woven fabric samples obtained here were used as a standard for the functional evaluation of color difference in examples R3 and R4 and comparative example R4.
EXAMPLE R3
(1) Preparation of the ink
To 100 parts by weight of a red base ink prepared in the same manner as in comparative example r3, 0.13 part by weight of CsWO dispersion (corresponding to 0.03 part by weight of CsWO) was added to prepare an infrared-absorbing red ink having a red ink content of 30 wt% (wet/wet) and a CsWO content per solid ink component of 0.15 wt%, and the coating and evaluation of a gray fabric were carried out using the infrared-absorbing red ink.
EXAMPLE R4 and COMPARATIVE EXAMPLE R4
An infrared ray absorbing red ink was prepared in the same manner as in example R3, except that 100 parts by weight of the red base ink prepared in the same manner as in comparative example R3 was used as the red base ink, and the amounts of the CsWO dispersion liquid added to 100 parts by weight of the red base ink were set to the amounts described in table 1, respectively, and this was used to coat and evaluate a gray fabric.
The results are shown in Table 2.
[ Table 1]
[ Table 2]
Comparative example Y1, examples Y1 and Y2, comparative examples Y2 and Y3, examples Y3 and Y4, and comparative example Y4
Yellow base inks (comparative examples Y1 and Y3) and infrared ray absorbing yellow inks (examples Y1 to Y4, and comparative examples Y2 and Y4) were prepared in the same manner as in comparative example R1, examples R1 and R2, comparative examples R2 and R3, examples R3 and R4, and comparative example R4, except that the same amount of yellow ink was used instead of the red ink, respectively, and coating and evaluation of a gray fabric were performed using the same.
The photothermal emission properties and the values of L, a, and b of the woven fabric samples obtained in comparative example Y1 were used as references for calculating the photothermal emission effects and the color difference Δ E of the infrared absorbing pigments in examples Y1 and Y2 and comparative example Y2. The woven fabric sample obtained in comparative example Y1 was used as a standard for the evaluation of the color difference in examples Y1 and Y2 and comparative example Y2.
The photothermal emission properties and the values of L, a, and b of the woven fabric samples obtained in comparative example Y3 were used as references for calculating the photothermal emission effects and the color difference Δ E of the infrared absorbing pigments in examples Y3 and Y4 and comparative example Y4. The woven fabric sample obtained in comparative example Y3 was used as a standard for the evaluation of the color difference in examples Y3 and Y4 and comparative example Y4.
The formulations of the inks of the above examples and comparative examples are shown in table 3. The evaluation results of these photothermal effects and color tones (L, a, and b, and color difference Δ E) are shown in table 4.
[ Table 3]
[ Table 4]
Comparative example B1 and examples B1 to B4
A blue base ink (comparative example B1) and an infrared ray absorbing blue ink (examples B1 to B4) were prepared in the same manner as in comparative example R1, examples R1 and R2, and comparative example R2, except that the same amount of the blue ink was used instead of the red ink, respectively, and the coating and evaluation of the gray fabric were performed using the same.
The photothermal emission properties and values of L, a, and B of the woven fabric samples obtained in comparative example B1 were used as references for calculating the photothermal emission effects and color difference Δ E of the infrared absorbing pigments in examples B1 to B4. The woven fabric sample obtained in comparative example B1 was used as a standard for the functional evaluation of color difference in examples B1 to B4.
The formulations of the inks of the above examples and comparative examples are shown in table 5. The evaluation results of these photothermal effects and color tones (L, a, and b, and color difference Δ E) are shown in table 6.
[ Table 5]
[ Table 6]
EXAMPLE R5
Coating and evaluation of a gray fabric were carried out in the same manner as in example R1 except that 0.24 parts by weight of antimony-doped tin oxide (ATO, solid content 100% by weight, product of stone industries, Ltd.) as an infrared absorbing pigment was added to 100 parts by weight of the red base ink prepared in the same manner as in comparative example R1 to prepare an infrared absorbing red ink having a red ink content of 10% by weight (wet/wet) and an ATO content per solid content of 1.19% by weight, and the infrared absorbing red ink was used.
Comparative example r5
Coating and evaluation of a gray fabric were carried out in the same manner as in example R1 except that 0.03 parts by weight of Carbon Black (CB) (furnace black "R400R" manufactured by CABOT corporation, solid content 100% by weight) as an infrared absorbing pigment was added to 100 parts by weight of the red base ink prepared in the same manner as in comparative example R1 to prepare an infrared absorbing red ink having a red ink content of 10% by weight (wet/wet) and a CB content per solid content of 0.15% by weight, and the red ink was used.
In the evaluation of the examples and comparative examples, the woven fabric sample obtained in comparative example r1 was used as a woven fabric sample to be a standard for evaluation of the photothermal property, color difference Δ E, and functionality.
The formulations of the inks of the above examples and comparative examples are shown in table 7 together with the formulation of comparative example r 1. The evaluation results of these photothermal effects and color tones (L, a, and b, and color difference Δ E) are shown in table 8 together with the evaluation result of comparative example r 1.
[ Table 7]
[ Table 8]
Comparative examples P1 to P3 and examples P1 to P3
Except for changing the amounts of each ink, polyurethane resin solution, MEK, and CsWO dispersion as shown in table 9, base inks (comparative examples P1 to P3) of respective colors and infrared absorbing inks (examples P1 to P3) of infrared absorbing properties were prepared in the same manner as in comparative example R1 and example R1, and used for coating and evaluation of a gray fabric.
In these evaluations, as the woven fabric sample to be the standard of the photothermal emission property, color difference Δ E, and functionality evaluation, the sample of comparative example P1 was used for the sample of example P1, the sample of comparative example P2 was used for the sample of example P2, and the sample of comparative example P3 was used for the sample of example P3. The obtained results are shown in table 10.
[ Table 9]
[ Table 10]
2. Infrared absorbing fiber
In the following examples and comparative examples, a tricot knitted fabric or woven fabric produced using an infrared absorbing fiber containing an infrared absorbing pigment was tested. An infrared-absorbing fiber based on polyethylene terephthalate (PET) was produced using cesium tungsten oxide CsWO as an infrared-absorbing pigment to make the content in the fiber 2 levels of 0.11 wt% and 0.52 wt%, and the test was performed.
In the following examples and comparative examples, the following raw materials were used for preparing samples.
Infrared absorptive pigment
(Cesium tungsten oxide)
Manufactured by Sumitomo Metal mine Co., Ltd,“YMDS-874”、Cs0.33WO323% by weight of a dispersing powder and a dispersing agent
The infrared-absorbing pigment Cs is described below0.33WO3Referred to as "CsWO", and a dispersion powder containing the CsWO and a dispersant is referred to as "CsWO dispersion powder".
Base resin
Bell Polyester Products, Inc. ("Bellpet IP 121B"), a copolymer polyethylene terephthalate containing isophthalic acid as the third component, and an intrinsic viscosity of 0.62
Preparation of CsWO dense color body
In the twin-screw extruder, 95 parts by weight of a base resin and 5 parts by weight of CsWO dispersed powder (relative to 1.15 parts by weight of CsWO) were kneaded to obtain a CsWO color concentrate containing 1.15% by weight of CsWO.
Comparative example t1
(1) Spinning
Homopolypet was spun as a spinning raw material for 1 hour at a spinning temperature of 290 ℃, an extrusion amount of 4 kg/hour, and a drawing speed of 1500 m/min using a multifilament melt spinning apparatus, thereby obtaining a 50-denier 24-filament multifilament fiber.
(2) Manufacture of grey cloth
Using 80 wt% of the multifilament fiber and 20 wt% of the polyurethane fiber, a 32-gauge and 240g/m basis weight was produced by a knitting machine2The tricot warp knit gray fabric of (1).
(3) Evaluation of
(3-1) evaluation of light exothermic Properties
An eye lamp for illumination (model name "PRF 250", rated voltage 100V, rated power consumption 250W, color temperature 3200K, light-scattering type) manufactured by yazaki electric corporation was installed at a position 30cm away from a square tricot knitted fabric sample cut into 7cm × 7cm, and light irradiation was performed. The surface temperature of the tricot fabric sample before (after 0 minute) and after 5 minutes of light irradiation at this time was measured, and the light heat release property of the tricot fabric sample was calculated from the difference between the two temperatures.
The value of the photothermal emission property of the tricot warp knit fabric blank sample obtained here was used as a criterion for calculating the photothermal emission effect of the infrared absorbing pigment in example T1 and comparative example T2.
(3-2) evaluation of color tone
The tricot gray fabric samples obtained in the above were measured for L, a, and b in the color space of CIE1976 using a spectral color measuring machine manufactured by X-Rite corporation, model name "SpectroEye". The measurement was performed in a state where 3 pieces of white interleaving paper (L ═ 94.84, a ═ 0.03, b ═ 0.44, thickness 0.24mm) were stacked and laid on a tricot fabric sample.
The values of L, a, and b of the tricot knitted fabric sample obtained here were used as the standards for calculating the color difference Δ E in example T1 and comparative example T2.
EXAMPLE T1
(1) Spinning
An infrared-absorbing multifilament fiber containing CsWO 0.11 wt% was obtained in the same manner as in comparative example t1, except that 9.57 parts by weight of CsWO solid and 90.43 parts by weight of homopolypet were used as spinning materials.
(2) Manufacture of grey cloth
An infrared ray absorbing tricot fabric blank was produced in the same manner as in comparative example t1, except that 80 wt% of the infrared ray absorbing multifilament fiber and 20 wt% of the polyurethane fiber were used. The CsWO content of the infrared ray absorbing tricot gray fabric is 0.19g/m2。
(3) Evaluation of
The obtained infrared ray-absorbing tricot knitted fabric blank was evaluated in the same manner as in comparative example t 1.
Comparative example t2
An infrared-absorbing multifilament fiber containing CsWO 0.52 wt% was obtained in the same manner as in comparative example t1, except that the CsWO solid was used in an amount of 45.25 parts by weight and homopolypet in an amount of 54.75 parts by weight as spinning materials. Using the obtained infrared ray-absorbing multifilament fiber, an infrared ray-absorbing tricot knitted fabric blank was produced in the same manner as in example T1 and evaluated.
The evaluation results of the light heat release effect and the color tones (L, a, and b, and the color difference Δ E) of the above examples and comparative examples are shown in table 11.
[ Table 11]
Comparative example c1
(1) Spinning
Using a multifilament melt spinning apparatus, homopolypet was spun as a spinning raw material at a spinning temperature of 290 ℃, an extrusion amount of 4 kg/hour, and a drawing speed of 1500 m/min for 1 hour to obtain a multifilament fiber of 75 denier 24 filaments. The multifilament fiber was twisted 2 pieces to obtain a double filament equivalent to 150 denier.
(2) Production of woven fabrics
Taking the obtained double yarns as weft yarns, wherein the weight ratio of the weft yarns to the weft yarns is 50: 50 polyester/wool blend (250 denier) as warp, weft: the using rate of the warp yarn is 41 in weight ratio: 59, 3/1 twill was woven using a Jonchel-type loom to obtain a basis weight of 170g/m2The woven fabric of (2).
(3) Evaluation of
Since the woven fabric obtained here was a woven fabric based on an 3/1 twill weave, the warp faces largely exposed by the polyester/wool blended yarn as warp and the weft faces largely exposed by the twins as weft were formed as the front and back sides. Therefore, the heat release property of the woven fabric sample and the color tone of the woven fabric sample were evaluated for both the warp yarn surface and the weft yarn surface.
(3-1) evaluation of light exothermic Properties
An eye lamp for illumination (model name "PRF 250", rated voltage 100V, rated power consumption 250W, color temperature 3200K, light emission type) manufactured by yazaki electric corporation was placed at a position 30cm from a square woven fabric sample cut into 7cm × 7cm, and light irradiation was performed. The temperatures of the back surfaces of the woven fabrics before (after 0 minute) and after 5 minutes of light irradiation at this time were measured, and the photothermal properties of the woven fabric samples were calculated from the difference between the two temperatures.
The values of the photothermal radiation properties of the woven fabric samples obtained here were used as the criteria for calculating the photothermal radiation effects of the infrared absorbing woven fabrics in example C1 and comparative example C2, respectively, on the warp yarn side and the weft yarn side.
(3-2) evaluation of color tone
The woven fabric samples obtained in the above were measured for L, a and b in the CIE1976 color space using a spectro-colorimeter manufactured by X-Rite, model name "SpectroEye". The measurement was performed in a state where 3 pieces of white interleaving paper (L: 94.84, a: 0.03, b: 0.44, 0.24mm in thickness) were stacked and laid on a woven fabric sample.
The values of L, a, and b of the woven fabric samples obtained here were used as standards for calculating the color difference Δ E between the warp yarn surface and the weft yarn surface in example C1 and comparative example C2, respectively.
EXAMPLE C1
(1) Spinning
An infrared-absorbing multifilament fiber of 75 denier 24 filaments containing CsWO 0.11 wt% was obtained in the same manner as in comparative example c1, except that CsWO 0.57 parts by weight of the dense color body and 90.43 parts by weight of homopolypet were used as spinning materials. The infrared ray absorptive multifilament fiber was twisted 2 pieces to obtain an infrared ray absorptive double filament equivalent to 150 denier.
(2) Production of woven fabrics
A basis weight of 170g/m was obtained in the same manner as in comparative example c1, except that the infrared-absorbing monofilaments obtained as described above were used as wefts2The infrared ray absorptive woven fabric of (1). The CsWO content of the infrared absorbent woven fabric is 0.08g/m2。
(3) Evaluation of
The obtained infrared absorbent woven fabric was evaluated in the same manner as in comparative example c 1.
Comparative example c2
An infrared-absorbing multifilament fiber containing CsWO 0.52 wt% was obtained in the same manner as in comparative example c1, except that the CsWO solid was used in an amount of 45.25 parts by weight and homopolypet in an amount of 54.75 parts by weight as spinning materials. The obtained infrared-absorbing multifilament fiber was used, and in addition to this,an infrared-absorbing twin wire was produced in the same manner as in example C1, and its weight per unit area was 170g/m2The infrared ray absorptive woven fabric of (1). The CsWO content of the infrared absorbent woven fabric is 0.35g/m2。
The infrared absorbent woven fabric was evaluated in the same manner as in comparative example c 1.
The evaluation results of the light heat release effect and the color tones (L, a, and b, and the color difference Δ E) of the examples and the comparative examples are shown in table 12.
[ Table 12]
Claims (13)
1. An infrared-absorbing fiber, woven or nonwoven fabric comprising an infrared-absorbing pigment,
the infrared absorbing fiber, woven or nonwoven fabric has a CIE1976 color space L of 30 or more, and
and a color difference Δ E in CIE1976 color space between the infrared-absorbing fiber, woven fabric or nonwoven fabric and the infrared-absorbing fiber, woven fabric or nonwoven fabric in the absence of the infrared-absorbing pigment is 10 or less.
2. The infrared absorbing fiber, woven or nonwoven fabric according to claim 1, which has the CIE1976 color space L of more than 90, and satisfies at least 1 of the following (i) to (iv):
(i) a in CIE1976 color space is-10 or less,
(ii) A in CIE1976 color space is more than 10,
(iii) B in CIE1976 color space is-10 or less, and
(iv) b in the CIE1976 color space is 10 or more.
3. The infrared absorbing fiber, woven or nonwoven fabric according to claim 1, which has a CIE1976 color space in which L is 90 or less.
4. The infrared absorbing fiber, woven or nonwoven fabric according to any one of claims 1 to 3,
the infrared-absorbing fiber contains the infrared-absorbing pigment in an amount of 0.01 to 0.50 mass% based on the total mass of the infrared-absorbing fiber,
with respect to the infrared ray absorbing woven or knitted fabric, the content of the infrared ray absorbing pigment per unit area of the infrared ray absorbing woven or knitted fabric is 0.05g/m2Above and 0.5g/m2The following.
5. The infrared absorbing fiber, woven or nonwoven fabric according to any one of claims 1 to 4, wherein the infrared absorbing pigment comprises 1 or more selected from the group consisting of a composite tungsten oxide represented by general formula (1) and a tungsten oxide having a Magneli phase represented by general formula (2),
general formula MxWyOz (1)
In the formula (1), M is at least 1 element selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi and I, W is tungsten, O is oxygen, x, y and z are each a positive number, and are 0< x/y < 1 and 2.2 < z/y < 3.0,
general formula WyOz (2)
In the formula (2), W is tungsten, O is oxygen, y and z are positive numbers respectively, and z/y is 2.45-2.999.
6. An infrared-absorbing fiber according to any one of claims 1 to 5.
7. An infrared ray absorptive woven or nonwoven fabric comprising the infrared ray absorptive fiber according to claim 6.
8. An infrared-absorbing woven or nonwoven fabric comprising the infrared-absorbing fiber according to claim 6 and a fiber containing no infrared-absorbing pigment,
the infrared-absorptive-pigment-free fiber has a structure in which the infrared absorptive pigment is removed from the infrared-absorptive fiber.
9. An infrared-absorbing woven or nonwoven fabric comprising the infrared-absorbing woven or nonwoven fabric according to any one of claims 1 to 5.
10. The infrared absorbing woven or nonwoven fabric as claimed in claim 9, which is composed of an infrared absorbing fiber containing an infrared absorbing pigment.
11. The infrared absorbing woven or nonwoven fabric according to claim 9, which is composed of an infrared absorbing fiber containing an infrared absorbing pigment and a fiber containing no infrared absorbing pigment,
the infrared-absorptive-pigment-free fiber has a structure in which the infrared absorptive pigment is removed from the infrared-absorptive fiber.
12. An infrared-absorbing garment comprising the infrared-absorbing woven or nonwoven fabric according to any one of claims 7 to 11.
13. An infrared-absorbing garment comprising the infrared-absorbing woven or nonwoven fabric according to any one of claims 7 to 11 and a woven or nonwoven fabric containing no infrared-absorbing pigment,
the woven or nonwoven fabric containing no infrared absorbing pigment has a structure in which the infrared absorbing pigment is removed from the infrared absorbing woven or nonwoven fabric.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-158937 | 2019-08-30 | ||
| JP2019158937 | 2019-08-30 | ||
| PCT/JP2020/031020 WO2021039474A1 (en) | 2019-08-30 | 2020-08-17 | Infrared-absorbing fiber, knit fabric, or non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114245833A true CN114245833A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080057910.7A Pending CN114245833A (en) | 2019-08-30 | 2020-08-17 | Infrared absorbing fiber, woven or nonwoven fabric |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220282402A1 (en) |
| EP (1) | EP4023796A1 (en) |
| JP (2) | JP7359856B2 (en) |
| CN (1) | CN114245833A (en) |
| WO (1) | WO2021039474A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118056040A (en) * | 2021-10-07 | 2024-05-17 | 住友金属矿山株式会社 | Infrared absorbing fiber and fiber product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201563A (en) * | 2000-12-27 | 2002-07-19 | Seiren Co Ltd | Method for forming three dimention pattern and three dimention pattern-formed material |
| WO2006049025A1 (en) * | 2004-11-08 | 2006-05-11 | Sumitomo Metal Mining Co., Ltd. | Near infrared radiation absobing fiber and textile product using the same |
| JP2006307383A (en) * | 2005-04-28 | 2006-11-09 | Teijin Fibers Ltd | Heat-retaining polyester fiber having excellent clarity and fabric |
| US20190135951A1 (en) * | 2016-07-15 | 2019-05-09 | Fujifilm Corporation | Laminate, kit, method for producing laminate, and optical sensor |
| WO2019160109A1 (en) * | 2018-02-15 | 2019-08-22 | 共同印刷株式会社 | Infrared absorbing resin composition, and molded article and fiber containing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009119189A (en) | 2007-11-19 | 2009-06-04 | Toshiba Corp | Curtain |
-
2020
- 2020-08-17 JP JP2021542764A patent/JP7359856B2/en active Active
- 2020-08-17 US US17/636,624 patent/US20220282402A1/en active Pending
- 2020-08-17 CN CN202080057910.7A patent/CN114245833A/en active Pending
- 2020-08-17 EP EP20858646.1A patent/EP4023796A1/en active Pending
- 2020-08-17 WO PCT/JP2020/031020 patent/WO2021039474A1/en unknown
-
2023
- 2023-09-28 JP JP2023168537A patent/JP2023168441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201563A (en) * | 2000-12-27 | 2002-07-19 | Seiren Co Ltd | Method for forming three dimention pattern and three dimention pattern-formed material |
| WO2006049025A1 (en) * | 2004-11-08 | 2006-05-11 | Sumitomo Metal Mining Co., Ltd. | Near infrared radiation absobing fiber and textile product using the same |
| CN101052755A (en) * | 2004-11-08 | 2007-10-10 | 住友金属矿山株式会社 | Near infrared radiation absorbing fiber and textile product using the same |
| JP2006307383A (en) * | 2005-04-28 | 2006-11-09 | Teijin Fibers Ltd | Heat-retaining polyester fiber having excellent clarity and fabric |
| US20190135951A1 (en) * | 2016-07-15 | 2019-05-09 | Fujifilm Corporation | Laminate, kit, method for producing laminate, and optical sensor |
| WO2019160109A1 (en) * | 2018-02-15 | 2019-08-22 | 共同印刷株式会社 | Infrared absorbing resin composition, and molded article and fiber containing same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4023796A1 (en) | 2022-07-06 |
| JP7359856B2 (en) | 2023-10-11 |
| WO2021039474A1 (en) | 2021-03-04 |
| TW202117109A (en) | 2021-05-01 |
| JPWO2021039474A1 (en) | 2021-03-04 |
| JP2023168441A (en) | 2023-11-24 |
| KR20220037489A (en) | 2022-03-24 |
| US20220282402A1 (en) | 2022-09-08 |
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