JP6659394B2 - Thermal barrier fabrics and textile products - Google Patents
Thermal barrier fabrics and textile products Download PDFInfo
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- JP6659394B2 JP6659394B2 JP2016023716A JP2016023716A JP6659394B2 JP 6659394 B2 JP6659394 B2 JP 6659394B2 JP 2016023716 A JP2016023716 A JP 2016023716A JP 2016023716 A JP2016023716 A JP 2016023716A JP 6659394 B2 JP6659394 B2 JP 6659394B2
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- 239000004744 fabric Substances 0.000 title claims description 66
- 239000004753 textile Substances 0.000 title claims description 8
- 230000004888 barrier function Effects 0.000 title 1
- 239000000835 fiber Substances 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 229920000728 polyester Polymers 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 description 23
- 239000002131 composite material Substances 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 18
- 238000009940 knitting Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- -1 polyethylene terephthalate Polymers 0.000 description 10
- 239000006224 matting agent Substances 0.000 description 8
- 238000009941 weaving Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000005871 repellent Substances 0.000 description 5
- 230000002940 repellent Effects 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002074 melt spinning Methods 0.000 description 3
- 229920000747 poly(lactic acid) Polymers 0.000 description 3
- 239000004626 polylactic acid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229920001410 Microfiber Polymers 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000006081 fluorescent whitening agent Substances 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 239000003112 inhibitor Substances 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CVBWTNHDKVVFMI-LBPRGKRZSA-N (2s)-1-[4-[2-[6-amino-8-[(6-bromo-1,3-benzodioxol-5-yl)sulfanyl]purin-9-yl]ethyl]piperidin-1-yl]-2-hydroxypropan-1-one Chemical compound C1CN(C(=O)[C@@H](O)C)CCC1CCN1C2=NC=NC(N)=C2N=C1SC(C(=C1)Br)=CC2=C1OCO2 CVBWTNHDKVVFMI-LBPRGKRZSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
本発明は、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れた遮熱性布帛および繊維製品に関する。 The present invention relates to a heat-shielding fabric and a fiber product which not only have excellent heat-shielding properties against near infrared rays, but also have excellent light-shielding properties, water resistance, and handleability.
従来、夏場の炎天下などにおいて、太陽光を遮蔽するために、日傘、カーテン、日よけシートなどの繊維製品が使用されている。そして、かかる繊維製品用の遮熱性布帛としては、酸化チタンなどの艶消し剤を含有する繊維を用いたものや、織編物表面に光反射性の金属膜を形成したもの、さらにはナノファイバーと称される超極細繊維を使用したものなどが提案されている（例えば、特許文献１、特許文献２、特許文献３、特許文献４参照）。
しかしながら、遮光性、耐水性、および取扱い性の点でまだ十分とはいえなかった。
2. Description of the Related Art Textile products such as parasols, curtains, and sunshade sheets have conventionally been used to shield sunlight under the scorching sun in summer. And, as the heat-shielding cloth for such a textile product, one using a fiber containing a matting agent such as titanium oxide, one having a light-reflective metal film formed on the surface of a woven or knitted fabric, or even a nanofiber The use of such ultrafine fibers has been proposed (for example, see Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4).
However, light-shielding properties, water resistance, and handleability have not been sufficient.
本発明は上記の背景に鑑みなされたものであり、その目的は、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れた遮熱性布帛および繊維製品を提供することにある。 The present invention has been made in view of the above background, and its object is to not only have excellent heat shielding properties against near infrared rays, but also light shielding properties, water resistance, and a heat shielding cloth excellent in handleability. To provide textile products.
本発明者らは上記の課題を達成するため鋭意検討した結果、超極細繊維を用いた布帛に樹脂層を積層させると、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れた遮熱性布帛が得られることを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 The present inventors have conducted intensive studies to achieve the above object, and as a result, when a resin layer is laminated on a cloth using ultra-fine fibers, not only has excellent heat shielding properties against near infrared rays, but also has light shielding properties, The present inventors have found that a heat-insulating cloth excellent in water resistance and handleability can be obtained, and have made extensive studies to complete the present invention.
かくして、本発明によれば「単繊維径が１０〜１０００ｎｍでありかつフィラメント数が２０００本以上のフィラメント糸Ａと、単繊維径が１０００ｎｍよりも大きいフィラメント糸Ｂとを含む布帛であり、該布帛の表裏少なくとも一方の面にウレタンフィルムからなる樹脂層を積層してなり、波長０．７８〜２μｍの近赤外線の平均反射率が７０％以上であり、かつ耐水圧が２００ｋＰａ以上であることを特徴とする遮熱性布帛。」が提供される。
その際、前記フィラメント糸Ａがポリエステルからなることが好ましい。また、前記フィラメント糸Ｂがポリエステルからなることが好ましい。また、前記フィラメント糸Ａとフィラメント糸Ｂとの重量比が（前者：後者）１５：８５〜８０：２０の範囲内であることが好ましい。また、布帛が織物組織を有することが好ましい。また、遮熱性布帛の厚さが０．１〜１．０ｍｍの範囲内であることが好ましい。また、遮熱性布帛の目付けが３０〜２００ｇ／ｍ２であることが好ましい。また、遮光率が９９．９％以上であることが好ましい。
また、本発明によれば、前記の遮熱性布帛を用いてなる、スポーツウエア、アウトドアウェア、紳士衣服、婦人衣服、作業衣、カーテン、テント、傘、帽子、日よけシート、および日よけネットの群より選ばれるいずれかの繊維製品が提供される。
Thus, according to the present invention, "a fabric comprising a filament yarn A having a single fiber diameter of 10 to 1000 nm and a number of filaments of 2,000 or more, and a filament yarn B having a single fiber diameter of more than 1000 nm, front and back at least one of Ri name by laminating a resin layer made of urethane film on the surface, and the average reflectance in the near infrared wavelength 0.78~2μm 70% or more, and der Rukoto more water pressure resistance 200kPa of A heat-insulating fabric characterized by the above-mentioned. "
In this case, it is preferable that the filament yarn A is made of polyester. Further, it is preferable that the filament yarn B is made of polyester. Further, it is preferable that the weight ratio of the filament yarn A to the filament yarn B is in the range of (the former: the latter) 15:85 to 80:20. Further, it is preferable that the fabric has a woven structure . Also, it is preferable that the thickness of the heat insulation fabric is in the range of 0.1 to 1.0 mm. Further, the basis weight of the heat-insulating fabric is preferably 30 to 200 g / m 2 . Also, it is preferable that the light blocking ratio is 99.9% or more.
Further, according to the present invention, sportswear, outdoor wear, men's clothing, women's clothing, work clothing, curtains, tents, umbrellas, hats, awning sheets, and awnings made using the above-mentioned heat-insulating fabric. Any textile selected from the group of nets is provided.
本発明によれば、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れた遮熱性布帛および繊維製品が得られる。 According to the present invention, it is possible to obtain a heat-shielding fabric and a fiber product which have not only excellent heat-shielding properties against near-infrared rays but also excellent light-shielding properties, water resistance, and handleability.
以下、本発明の実施の形態について詳細に説明する。
まず、フィラメント糸Ａ（以下、「ナノファイバー」と称することもある。）において、その単繊維径（単繊維の直径）が１０〜１０００ｎｍ（好ましくは１００〜９００ｎｍ、特に好ましくは５５０〜９００ｎｍ）の範囲内であることが肝要である。かかる単繊維径を単繊維繊度に換算すると、０．０００００１〜０．０１ｄｔｅｘに相当する。該単繊維径が１０ｎｍよりも小さい場合は繊維強度が低下するため実用上好ましくない。逆に、該単繊維径が１０００ｎｍよりも大きい場合は、近赤外線に対して優れた遮熱効果や遮光性が得られず好ましくない。ここで、単繊維の断面形状が丸断面以外の異型断面である場合には、外接円の直径を単繊維径とする。なお、単繊維径は、透過型電子顕微鏡で繊維の横断面を撮影することにより測定が可能である。
Hereinafter, embodiments of the present invention will be described in detail.
First, in the filament yarn A (hereinafter sometimes referred to as "nanofiber"), the single fiber diameter (single fiber diameter) is 10 to 1000 nm (preferably 100 to 900 nm, particularly preferably 550 to 900 nm). It is important to be within the range. When this single fiber diameter is converted into single fiber fineness, it corresponds to 0.000001 to 0.01 dtex. When the single fiber diameter is smaller than 10 nm, the fiber strength is reduced, which is not preferable in practical use. Conversely, when the single fiber diameter is larger than 1000 nm, an excellent heat-shielding effect and a light-shielding property against near infrared rays cannot be obtained, which is not preferable. Here, when the cross-sectional shape of the single fiber is an irregular cross-section other than the round cross-section, the diameter of the circumscribed circle is defined as the single fiber diameter. The diameter of a single fiber can be measured by photographing a cross section of the fiber with a transmission electron microscope.
前記フィラメント糸Ａにおいて、近赤外線に対して優れた遮熱効果を得る上でフィラメント数が２０００本以上（より好ましくは５０００〜３００００本）であることが肝要である。かかるフィラメント数が２０００本未満の場合、近赤外線に対して優れた遮熱効果や耐光性が得られないおそれがある。また、フィラメント糸Ａの総繊度（単繊維繊度とフィラメント数との積）としては、５〜１５０ｄｔｅｘの範囲内であることが好ましい。 In the filament yarn A, it is important that the number of filaments is 2,000 or more (more preferably, 5,000 to 30,000) in order to obtain an excellent heat shielding effect against near infrared rays. When the number of such filaments is less than 2,000, there is a possibility that an excellent heat shielding effect and light resistance to near infrared rays cannot be obtained. Further, the total fineness (the product of the single fiber fineness and the number of filaments) of the filament yarn A is preferably in the range of 5 to 150 dtex.
前記フィラメント糸Ａの繊維形態は特に限定されず、長繊維（マルチフィラメント糸）でもよいし、短繊維でもよい。なかでも、織編物の組織間空隙を小さくして近赤外線に対して優れた遮熱効果が得る上で、紡績糸のように繊維が凝集しているよりも長繊維（マルチフィラメント糸）のように嵩高であるほうが好ましい。単繊維の断面形状も特に限定されず、丸、三角、扁平、中空など公知の断面形状でよい。また、通常の空気加工、仮撚捲縮加工が施されていてもさしつかえない。 The fiber form of the filament yarn A is not particularly limited, and may be a long fiber (multifilament yarn) or a short fiber. Above all, in order to obtain an excellent heat-shielding effect against near-infrared rays by reducing the interstitial space of the woven or knitted fabric, it is more like a long fiber (multi-filament yarn) than a spun yarn. It is preferable that the bulkiness is high. The cross-sectional shape of the single fiber is not particularly limited, and may be a known cross-sectional shape such as a circle, a triangle, a flat, and a hollow. Further, even if ordinary air processing or false twist crimping is performed, no problem may occur.
前記フィラメント糸Ａを形成するポリマーの種類としては特に限定されないが、繊維強度や染色堅牢性などの点でポリエステル系ポリマーが好ましい。例えば、ポリエチレンテレフタレートやポリトリメチレンテレフタレート、ポリブチレンテレフタレート、ポリ乳酸、ステレオコンプレックスポリ乳酸、第３成分を共重合させたポリエステルなどが好ましく例示される。かかるポリエステルとしては、マテリアルリサイクルまたはケミカルリサイクルされたポリエステルや、特開２００９−０９１６９４号公報に記載された、バイオマスすなわち生物由来の物質を原材料として得られたモノマー成分を使用してなるポリエチレンテレフタレートであってもよい。さらには、特開２００４−２７００９７号公報や特開２００４−２１１２６８号公報に記載されているような、特定のリン化合物およびチタン化合物を含む触媒を用いて得られたポリエステルでもよい。該ポリマー中には、本発明の目的を損なわない範囲内で必要に応じて、微細孔形成剤、カチオン染料可染剤、着色防止剤、熱安定剤、蛍光増白剤、艶消し剤、着色剤、吸湿剤、無機微粒子が１種または２種以上含まれていてもよい。艶消し剤（酸化チタン）はポリエステル中に含まれていてもさしつかえないが、艶消し剤がポリエステル中に含まれていなくても近赤外線に対して優れた遮熱効果が得られるので、フィラメントＡを容易に製造する上で、艶消し剤（酸化チタン）の含有量はポリエステル重量対比２．５％以下とすることが好ましい。 The type of the polymer forming the filament yarn A is not particularly limited, but a polyester-based polymer is preferable in terms of fiber strength and dyeing fastness. For example, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, stereocomplex polylactic acid, and polyester obtained by copolymerizing a third component are preferably exemplified. Examples of the polyester include polyester that has been subjected to material recycling or chemical recycling, and polyethylene terephthalate using a biomass, that is, a monomer component obtained from a biological substance as a raw material, described in JP-A-2009-091694. You may. Further, polyesters obtained by using a catalyst containing a specific phosphorus compound and a titanium compound as described in JP-A-2004-27097 and JP-A-2004-21268 may be used. In the polymer, if necessary, a fine pore forming agent, a cationic dye dyeing agent, a coloring inhibitor, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent within a range not to impair the object of the present invention. One, two or more agents, moisture absorbents, and inorganic fine particles may be contained. Although the matting agent (titanium oxide) may be contained in the polyester, it can be used even if the matting agent is not contained in the polyester. In order to easily manufacture the polyester, the content of the matting agent (titanium oxide) is preferably 2.5% or less based on the weight of the polyester.
次に、フィラメント糸Ｂは、単繊維径が１０００ｎｍよりも大きいフィラメント糸である。かかるフィラメント糸Ｂにおいて、艶消し剤がフィラメント糸を形成するポリマー重量対比１．５重量％以上（より好ましくは２．０重量％以上、特に好ましくは２．０〜４．０重量％）含まれていると、近赤外線に対して優れた遮熱効果が得られ好ましい。
フィラメント糸Ｂの単繊維径の好ましい範囲は１〜２０μｍである。フィラメント糸Ｂにおいて、フィラメント数および総繊度としては、フィラメント数１０〜２００本、総繊度１０〜３５０ｄｔｅｘの範囲内であることが好ましい。
かかるフィラメント糸Ｂを形成するポリマーとしては、前記フィラメント糸Ａと同様のポリエステル系ポリマーが好ましい。
Next, the filament yarn B is a filament yarn having a single fiber diameter larger than 1000 nm. In such a filament yarn B, the matting agent is contained in an amount of 1.5% by weight or more (more preferably 2.0% by weight or more, particularly preferably 2.0 to 4.0% by weight) based on the weight of the polymer forming the filament yarn. Is preferable because an excellent heat shielding effect against near infrared rays can be obtained.
A preferable range of the single fiber diameter of the filament yarn B is 1 to 20 μm. In the filament yarn B, the number of filaments and the total fineness are preferably in the range of 10 to 200 filaments and the total fineness of 10 to 350 dtex.
As the polymer forming the filament yarn B, the same polyester-based polymer as the filament yarn A is preferable.
本発明の遮熱性布帛物において、布帛に含まれる前記フィラメント糸Ａとフィラメント糸Ｂとの重量比としては、（前者：後者）１５：８５〜８０：２０の範囲内であることが好ましい。なお、本発明の遮熱性布帛は、前記フィラメント糸Ａとフィラメント糸Ｂだけで構成されることが最も好ましいが、織編物重量に対して５０重量％以下であれば他の繊維が含まれていてもよい。
前記フィラメント糸Ａとフィラメント糸Ｂとは、複合糸として布帛に含まれていてもよいし、両者が引き揃えられて含まれていてもよいし、両者が交編または交織されていてもよい。特に、近赤外線に対して優れた遮熱効果を得る上で両者が交編または交織されていることが好ましい。
In the heat-insulating fabric of the present invention, the weight ratio between the filament yarn A and the filament yarn B contained in the fabric is preferably in the range of (former: latter) 15:85 to 80:20. It is most preferable that the heat-shielding fabric of the present invention is composed of only the filament yarn A and the filament yarn B. However, if it is 50% by weight or less based on the weight of the woven or knitted fabric, other fibers are contained. Is also good.
The filament yarn A and the filament yarn B may be included in the fabric as a composite yarn, may be included in a state where they are aligned, or may be interwoven or interwoven. In particular, it is preferable that both are knitted or interwoven to obtain an excellent heat shielding effect against near infrared rays.
本発明の遮熱性布帛において、布帛の組織は特に限定されず、例えば、織物組織としては、平織、斜文織、朱子織等の三原組織、変化組織、変化斜文織等の変化組織、経二重織、緯二重織等の片二重組織、たてビロードなどが例示される。層数も単層でもよいし、２層以上の多層でもよい。編物の場合は、よこ編物であってもよいしたて編物であってもよい。よこ編組織としては、平編、ゴム編、両面編、パール編、タック編、浮き編、片畔編、レース編、添え毛編等が好ましく例示され、たて編組織としては、シングルデンビー編、シングルアトラス編、ダブルコード編、ハーフトリコット編、裏毛編、ジャガード編等が例示される。層数も単層でもよいし、２層以上の多層でもよい。また、製編織方法も通常の織編機（例えば、通常のウオータージェットルーム、エアージェットルーム、丸編機など）を用いた通常の方法でよい。
なかでも、布帛が経二重織物であり、前記フィラメント糸Ａが該織物の緯糸に配され、かつ前記フィラメント糸Ｂが該織物の経糸に配されていると、赤外線を効果的に反射するという理由で、近赤外線に対して優れた遮熱効果が得られ好ましい。
In the heat-shielding cloth of the present invention, the structure of the cloth is not particularly limited. For example, as the woven cloth, a three-dimensional structure such as plain weave, oblique weave, satin weave, a change structure, a change structure such as change oblique weave, and Examples include a single double structure such as a double weave and a weft double weave, and a vertical velvet. The number of layers may be a single layer or two or more layers. In the case of a knit, it may be a weft knit or may be a knit. As the weft knitting structure, a flat knitting, a rubber knitting, a double-sided knitting, a pearl knitting, a tack knitting, a floating knitting, a one-sided knitting, a lace knitting, a fleece knitting, and the like are preferably exemplified. , Single atlas knitting, double cord knitting, half tricot knitting, fleece knitting, jacquard knitting, and the like. The number of layers may be a single layer or two or more layers. Further, the knitting and weaving method may be an ordinary method using an ordinary weaving machine (for example, an ordinary water jet loom, an air jet loom, a circular knitting machine, etc.).
Above all, if the fabric is a warp double woven fabric, the filament yarn A is arranged on the weft of the woven fabric, and the filament yarn B is arranged on the warp of the woven fabric, it effectively reflects infrared rays. For this reason, an excellent heat shielding effect against near infrared rays is obtained, which is preferable.
特に遮熱性布帛が、下記式に定義するカバーファクターＣＦが１２００以上（より好ましくは１４００〜５０００）の織物であると、特に優れた遮熱効果が得られ好ましい。
ＣＦ＝（ＤＷｐ／１．１）１／２×ＭＷｐ＋（ＤＷｆ／１．１）１／２×ＭＷｆ
［ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆ
は緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。］
In particular, when the heat-shielding fabric is a woven fabric having a cover factor CF defined by the following formula of 1200 or more (more preferably 1400 to 5000), a particularly excellent heat-shielding effect is obtained, which is preferable.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
[DWp is the warp total fineness (dtex), MWp is the warp weave density (book / 2.54 cm), DWf
Is the weft total fineness (dtex), and MWf is the weft weave density (book / 2.54 cm). ]
かかる布帛は例えば以下の製造方法により製造することができる。まず、海成分と、その径が１０〜１０００ｎｍである島成分とで形成される海島型複合繊維（フィラメント糸Ａ用繊維）を用意する。かかる海島型複合繊維としては、特開２００７−２３６４号公報に開示された海島型複合繊維マルチフィラメント（島数１００〜１５００）が好ましく用いられる。 Such a fabric can be manufactured, for example, by the following manufacturing method. First, a sea-island composite fiber (fiber for filament yarn A) formed of a sea component and an island component having a diameter of 10 to 1000 nm is prepared. As such a sea-island type composite fiber, a sea-island type composite fiber multifilament (100 to 1500 islands) disclosed in JP-A-2007-2364 is preferably used.
ここで、海成分ポリマーとしては、繊維形成性の良好なポリエステル、ポリアミド、ポリスチレン、ポリエチレンなどが好ましい。例えば、アルカリ水溶液易溶解性ポリマーとしては、ポリ乳酸、超高分子量ポリアルキレンオキサイド縮合系ポリマー、ポリエチレングルコール系化合物共重合ポリエステル、ポリエチレングリコール系化合物と５−ナトリウムスルホン酸イソフタル酸の共重合ポリエステルが好適である。なかでも、５−ナトリウムスルホイソフタル酸６〜１２モル％と分子量４０００〜１２０００のポリエチレングルコールを３〜１０重量％共重合させた固有粘度が０．４〜０．６のポリエチレンテレフタレート系共重合ポリエステルが好ましい。 Here, as the sea component polymer, polyester, polyamide, polystyrene, polyethylene, or the like having a good fiber-forming property is preferable. For example, as the easily soluble polymer in an aqueous alkali solution, polylactic acid, an ultrahigh molecular weight polyalkylene oxide condensation-based polymer, a polyethylene glycol-based compound copolymerized polyester, and a copolymerized polyester of a polyethylene glycol-based compound and 5-sodium sulfonic acid isophthalic acid are given. It is suitable. Above all, polyethylene terephthalate copolymer polyester having an intrinsic viscosity of 0.4 to 0.6 obtained by copolymerizing 6 to 12 mol% of 5-sodium sulfoisophthalic acid and polyethylene glycol having a molecular weight of 4000 to 12000 by 3 to 10% by weight. Is preferred.
一方、島成分ポリマーは、最終的にフィラメントＡを形成するポリマーであり、前記のようなポリエステルが好ましい。該ポリマー中には、本発明の目的を損なわない範囲内で必要に応じて、微細孔形成剤、カチオン染料可染剤、着色防止剤、熱安定剤、蛍光増白剤、艶消し剤、着色剤、吸湿剤、無機微粒子が１種または２種以上含まれていてもよい。 On the other hand, the island component polymer is a polymer that finally forms the filament A, and the polyester as described above is preferable. In the polymer, if necessary, a fine pore forming agent, a cationic dye dyeing agent, a coloring inhibitor, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent within a range not to impair the object of the present invention. One, two or more agents, moisture absorbents, and inorganic fine particles may be contained.
上記の海成分ポリマーと島成分ポリマーからなる海島型複合繊維は、溶融紡糸時における海成分の溶融粘度が島成分ポリマーの溶融粘度よりも大きいことが好ましい。また、島成分の径は、１０〜１０００ｎｍの範囲とする必要がある。その際、該径が真円でない場合は外接円の直径を求める。前記の海島型複合繊維において、その海島複合重量比率（海：島）は、４０：６０〜５：９５の範囲が好ましく、特に３０：７０〜１０：９０の範囲が好ましい。 In the sea-island composite fiber comprising the above sea component polymer and island component polymer, the melt viscosity of the sea component during melt spinning is preferably higher than the melt viscosity of the island component polymer. The diameter of the island component needs to be in the range of 10 to 1000 nm. At this time, if the diameter is not a perfect circle, the diameter of the circumscribed circle is determined. In the above-mentioned sea-island composite fiber, the sea-island composite weight ratio (sea: island) is preferably in the range of 40:60 to 5:95, and particularly preferably in the range of 30:70 to 10:90.
かかる海島型複合繊維は、例えば以下の方法により容易に製造することができる。すなわち、前記の海成分ポリマーと島成分ポリマーとを用い溶融紡糸する。溶融紡糸に用いられる紡糸口金としては、島成分を形成するための中空ピン群や微細孔群を有するものなど任意のものを用いることができる。吐出された海島型複合繊維（マルチフィラメント）は、冷却風によって固化され、好ましくは４００〜６０００ｍ／分で溶融紡糸された後に巻き取られる。得られた未延伸糸は、別途延伸工程をとおして所望の強度・伸度・熱収縮特性を有する複合繊維とするか、あるいは、一旦巻き取ることなく一定速度でローラーに引き取り、引き続いて延伸工程をとおした後に巻き取る方法のいずれでも構わない。さらに、仮撚捲縮加工を施してもよい。かかる海島型複合繊維（フィラメント糸Ａ用マルチフィラメント）において、単糸繊維繊度、フィラメント数、総繊度としてはそれぞれ単糸繊維繊度０．５〜１０．０ｄｔｅｘ、フィラメント数５〜７５本、総繊度３０〜１７０ｄｔｅｘ（好ましくは３０〜１００ｄｔｅｘ）の範囲内であることが好ましい。ここで、最終的に得られるフィラメントＡのフィラメント数を２０００本以上とする上で、前記島成分の島数と、海島型複合繊維のフィラメント数との積が２０００以上であることが肝要である。 Such a sea-island type composite fiber can be easily produced, for example, by the following method. That is, melt spinning is performed using the above sea component polymer and island component polymer. As the spinneret used for the melt spinning, any one having a group of hollow pins and a group of fine holes for forming an island component can be used. The discharged sea-island type composite fibers (multifilaments) are solidified by cooling air, preferably melt-spun at 400 to 6000 m / min, and then wound. The obtained undrawn yarn is separated into a composite fiber having a desired strength, elongation and heat shrinkage property through a separate drawing step, or is taken up by a roller at a constant speed without being wound once, and is subsequently drawn into a drawing step. Any of the methods of winding after passing through may be used. Further, false twist crimping may be performed. In such a sea-island type conjugate fiber (multifilament for filament yarn A), the single yarn fiber fineness, the number of filaments, and the total fineness are respectively 0.5 to 10.0 dtex, 5 to 75 filaments, and a total fineness of 30. It is preferably in the range of 170 to 170 dtex (preferably 30 to 100 dtex). Here, it is important that the product of the number of islands of the island component and the number of filaments of the sea-island composite fiber is 2,000 or more in order to make the number of filaments of the finally obtained filament A 2,000 or more. .
また、単繊維径が１０００ｎｍよりも大きいフィラメント糸Ｂを用意する。
次いで、前記海島型複合繊維（フィラメント糸Ａ用マルチフィラメント）とフィラメント糸Ｂとを用いて、さらに必要に応じて他の繊維（弾性繊維やポリエステル繊維など）をも用いて前記のような布帛を製編織する。
次いで、該布帛にアルカリ水溶液処理を施し、前記海島型複合繊維の海成分をアルカリ水溶液で溶解除去し、海島型複合繊維を単繊維径が１０〜１０００ｎｍのフィラメント糸Ａとすることにより、単繊維径が１０〜１０００ｎｍでありかつフィラメント数が２０００本以上のフィラメント糸Ａと、単繊維径が１０００ｎｍよりも大きいフィラメント糸Ｂとを含む織編物を得る。その際、アルカリ水溶液処理の条件としては、濃度３〜４％のＮａＯＨ水溶液を使用し５５〜６５℃の温度で処理するとよい。
また、常法の起毛加工、撥水加工、さらには、紫外線遮蔽あるいは制電剤、抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤、マイナスイオン発生剤等の機能を付与する各種加工、バッフィング加工またはブラシ処理加工を付加適用してもよい。
Further, a filament yarn B having a single fiber diameter larger than 1000 nm is prepared.
Next, using the sea-island composite fiber (multifilament for filament yarn A) and the filament yarn B, and further using other fibers (elastic fiber, polyester fiber, etc.) as necessary, the above-mentioned fabric is used. Weaving and weaving.
Next, the fabric is subjected to an aqueous alkali solution treatment, and the sea component of the sea-island composite fiber is dissolved and removed with an alkaline aqueous solution to form a filament yarn A having a single fiber diameter of 10 to 1000 nm. A woven or knitted fabric including a filament yarn A having a diameter of 10 to 1000 nm and a number of filaments of 2,000 or more and a filament yarn B having a single fiber diameter of greater than 1000 nm is obtained. At this time, as a condition of the alkaline aqueous solution treatment, it is preferable to use an NaOH aqueous solution having a concentration of 3 to 4% at a temperature of 55 to 65 ° C.
In addition, various methods that provide functions such as brushing, water repellent, and antistatic, antibacterial, antibacterial, deodorant, insect repellent, luminous, retroreflective, and negative ion generating agents in the usual manner. Processing, buffing, or brushing may be additionally applied.
本発明の遮熱性布帛は、かかる布帛の表裏少なくとも一方の面（両面でもよいが、軽量性の点で片面のみであることが好ましい。）に樹脂層を積層してなるものである。
前記樹脂層を形成する樹脂の種類としては、ウレタン樹脂、アクリル樹脂、ポリエステル樹脂、シリコーン樹脂、塩化ビニル樹脂、ナイロン樹脂など公知のバインダー樹脂でよい。また、樹脂の基布に対する付着量は、樹脂固形分基準で基布に対して０．０１〜４０ｇ／ｍ２（より好ましくは５〜３０ｇ／ｍ２）の範囲内であることが好ましい。
The heat-shielding fabric of the present invention is obtained by laminating a resin layer on at least one of the front and back surfaces of the cloth (both surfaces may be provided, but only one surface is preferred in terms of lightness).
The type of the resin forming the resin layer may be a known binder resin such as a urethane resin, an acrylic resin, a polyester resin, a silicone resin, a vinyl chloride resin, and a nylon resin. The amount of the resin adhered to the base cloth is preferably in the range of 0.01 to 40 g / m 2 (more preferably 5 to 30 g / m 2 ) based on the resin solid content.
樹脂層を積層する方法としては、前記の布帛に、上記樹脂からなるフィルムを貼り合わせるか、または上記樹脂を含む配合組成物を付与するとよい。
その際、かかる配合組成物は水系、溶剤系のいずれで構成してもよいが、加工工程の作業環境上水系の方が好ましい。溶剤としては、トルエン、イソプロピルアルコール、ジメチルホルムアミド、メチルエチルケトン、酢酸エチルなどが例示される。この配合組成物には、エポキシ系などの架橋剤を併用してもよい。さらに、布帛本体に対する付着性を向上させる等の目的で適当な添加剤をさらに配合してもよい。
布帛への配合組成物の付与手段としては、グラビヤコーテイング法、スクリーンプリント法などの、公知の付与手段を用いることができる。
As a method for laminating the resin layer, a film made of the above resin may be attached to the above cloth, or a compound composition containing the above resin may be provided.
At this time, the compounding composition may be composed of an aqueous system or a solvent system, but is preferably an aqueous system in view of the working environment of the processing step. Examples of the solvent include toluene, isopropyl alcohol, dimethylformamide, methyl ethyl ketone, and ethyl acetate. A crosslinking agent such as an epoxy-based crosslinking agent may be used in combination with the composition. Further, an appropriate additive may be further compounded for the purpose of improving the adhesion to the fabric body.
As a means for applying the compounding composition to the cloth, known applying means such as a gravure coating method and a screen printing method can be used.
ここで、前記配合組成物を織物に付与する前および／または後に、織物にカレンダー加工および／または撥水加工を施すと、組織間空隙が小さくなるため遮光性がさらに向上し好ましい。撥水加工としては、例えば、特許第３１３３２２７号公報や特公平４−５７８６号公報に記載された方法が好適である。すなわち、撥水剤として市販のふっ素系撥水剤（例えば、旭硝子（株）製、アサヒガードＬＳ−３１７）を使用し、必要に応じてメラミン樹脂、触媒を混合して撥水剤の濃度が３〜１５重量％程度の加工剤とし、ピックアップ率５０〜９０％程度で、該加工剤を用いて布帛の表面を処理する方法である。加工剤で織物の表面を処理する方法としては、パッド法、スプレー法などが例示され、なかでも、加工剤を布帛内部まで浸透させる上でパッド法が最も好ましい。なお、前記ピックアップ率とは、加工剤の織物（加工剤付与前）重量に対する重量割合（％）である。また、カレンダー加工の条件としては、温度１３０℃以上（より好ましくは１４０〜１９５℃）、線圧２００〜２００００Ｎ／ｃｍの範囲内であることが好ましい。 Here, it is preferable that the woven fabric is subjected to calendering and / or water repellency before and / or after the compound composition is applied to the woven fabric, because the interstitial space is reduced, whereby the light-shielding property is further improved. As the water repellent process, for example, a method described in Japanese Patent No. 3133227 or Japanese Patent Publication No. 4-5786 is suitable. That is, a commercially available fluorine-based water repellent (for example, Asahi Guard LS-317, manufactured by Asahi Glass Co., Ltd.) is used as the water repellent, and a melamine resin and a catalyst are mixed as necessary to reduce the concentration of the water repellent. In this method, the surface of the fabric is treated with the processing agent at a pickup rate of about 50 to 90% using a processing agent of about 3 to 15% by weight. Examples of the method of treating the surface of the woven fabric with the processing agent include a pad method and a spray method. Among them, the pad method is most preferable for allowing the processing agent to penetrate into the inside of the fabric. The pickup rate is a weight ratio (%) of the processing agent to the weight of the fabric (before applying the processing agent). The calendering conditions are preferably a temperature of 130 ° C. or more (more preferably 140 to 195 ° C.) and a linear pressure of 200 to 20,000 N / cm.
かくして得られた遮熱性布帛において、厚さは０．１〜１．０ｍｍの範囲内であることが好ましい。該厚さが０．１ｍｍよりも小さいと、近赤外線に対して優れた遮熱効果や遮光性が得られないおそれがある。逆に該厚さが１．０ｍｍよりも大きいと軽量性が低下するおそれがある。
また、遮熱性布帛の目付けとしては、３０〜２００ｇ／ｍ２であるの範囲内であることが好ましい。該目付けが３０ｇ／ｍ２よりも小さいと、近赤外線に対して優れた遮熱効果や遮光性が得られないおそれがある。逆に該厚さが２００ｇ／ｍ２よりも大きいと軽量性が低下するおそれがある。
In the heat-shielding fabric thus obtained, the thickness is preferably in the range of 0.1 to 1.0 mm. If the thickness is smaller than 0.1 mm, there is a possibility that an excellent heat shielding effect or light shielding property for near infrared rays cannot be obtained. Conversely, if the thickness is larger than 1.0 mm, the lightness may be reduced.
Further, the basis weight of the heat-insulating fabric is preferably within a range of 30 to 200 g / m 2 . If the basis weight is less than 30 g / m 2 , an excellent heat-shielding effect or a light-shielding property for near infrared rays may not be obtained. Conversely, if the thickness is larger than 200 g / m 2 , the lightness may be reduced.
かかる遮熱性布帛は単繊維径が１０〜１０００ｎｍでありかつフィラメント数が２０００本以上のフィラメント糸Ａと、単繊維径が１０００ｎｍよりも大きいフィラメント糸Ｂとを含む布帛であり、該布帛の表裏少なくとも一方の面に樹脂層を積層しているので、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れる。
その際、波長０．７８〜２μｍの近赤外線の平均反射率が７０％以上であることが好ましい。また、遮光率が９９．９％以上であることが好ましい。また、耐水圧が２００ｋＰａ以上であることが好ましい。
Such a heat-insulating cloth is a cloth including a filament yarn A having a single fiber diameter of 10 to 1000 nm and a number of filaments of 2,000 or more, and a filament yarn B having a single fiber diameter larger than 1000 nm. Since the resin layer is laminated on one surface, it has not only excellent heat shielding properties against near infrared rays, but also excellent light shielding properties, water resistance, and handleability.
At that time, it is preferable that the average reflectance of near infrared rays having a wavelength of 0.78 to 2 μm is 70% or more. Further, it is preferable that the light shielding ratio is 99.9% or more. Further, the water pressure resistance is preferably 200 kPa or more.
次に、本発明の繊維製品は、前記の遮熱性布帛を用いてなる、スポーツウエア、アウトドアウェア、紳士衣服、婦人衣服、作業衣、一般衣料、カーテン、テント、傘地、帽子、日よけシート、および日よけネットの群より選ばれるいずれかの繊維製品である。かかる繊維製品は前記の遮熱性布帛を用いているので、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れる。 Next, the textile product of the present invention comprises sportswear, outdoor wear, men's clothing, women's clothing, work clothing, general clothing, curtains, tents, umbrellas, hats, sunshades using the above heat-insulating fabrics. Any textile product selected from the group of sheets and awning nets. Since such a fiber product uses the above-mentioned heat-shielding cloth, it not only has excellent heat-shielding properties against near-infrared rays, but also has excellent light-shielding properties, water resistance, and handleability.
次に本発明の実施例及び比較例を詳述するが、本発明はこれらによって限定されるものではない。なお、実施例中の各測定項目は下記の方法で測定した。 Next, Examples and Comparative Examples of the present invention will be described in detail, but the present invention is not limited thereto. In addition, each measurement item in an Example was measured by the following method.
（１）溶融粘度
乾燥処理後のポリマーを紡糸時のルーダー溶融温度に設定したオリフィスにセットして５分間溶融保持したのち、数水準の荷重をかけて押し出し、そのときのせん断速度と溶融粘度をプロットした。そのプロットをなだらかにつないで、せん断速度−溶融粘度曲線を作成し、せん断速度が１０００秒−１の時の溶融粘度を見た。
(1) Melt viscosity The polymer after drying is set in an orifice set to the ruder melting temperature during spinning, melted and held for 5 minutes, and then extruded by applying a load of several levels, and the shear rate and melt viscosity at that time are measured. Plotted. The plots were gently connected to form a shear rate-melt viscosity curve, and the melt viscosity at a shear rate of 1000 sec-1 was observed.
（２）溶解速度
海・島成分の各々０．３φ−０．６Ｌ×２４Ｈの口金にて１０００〜２０００ｍ／分の紡糸速度で糸を巻き取り、さらに残留伸度が３０〜６０％の範囲になるように延伸して、８４ｄｔｅｘ／２４ｆｉｌのマルチフィラメントを作製した。これを各溶剤にて溶解しようとする温度で浴比１００にて溶解時間と溶解量から減量速度を算出した。
(2) Dissolution speed The yarn is wound up at a spinning speed of 1000 to 2000 m / min with a base of 0.3φ-0.6L × 24H for each of the sea and island components, and the residual elongation is in the range of 30-60%. It was stretched so as to produce a multifilament of 84 dtex / 24fil. The rate of weight loss was calculated from the dissolution time and the amount of dissolution at a bath ratio of 100 at the temperature at which this was to be dissolved in each solvent.
（３）単繊維径
織編物を電子顕微鏡で写真撮影した後、ｎ数５で単繊維径を測定しその平均値を求めた。
(3) Single Fiber Diameter After taking a photograph of the woven or knitted product with an electron microscope, the diameter of the single fiber was measured at n = 5, and the average value was determined.
（４）布帛の厚さ
ＪＩＳ Ｌ１０９６ ８．５に従って測定した。
(4) Thickness of cloth Measured according to JIS L1096 8.5.
（５）布帛の目付
ＪＩＳ Ｌ１０９６ ６．４．２に従って測定した。
(5) Weight of cloth Measured according to JIS L1096 6.4.2.
（６）近赤外線の反射率
島津製作所製「ＵＶ３１００Ｓ ＭＰＣ−３１００」で、波長７８０ｎｍ〜２μｍの範囲の近赤外線に対する平均反射率を測定した。
(6) Near-infrared reflectance The average reflectance for near-infrared light having a wavelength in the range of 780 nm to 2 μm was measured using “UV3100S MPC-3100” manufactured by Shimadzu Corporation.
（７）織物のカバーファクターＣＦ
下記式により織物のカバーファクターＣＦを求めた。
ＣＦ＝（ＤＷｐ／１．１）１／２×ＭＷｐ＋（ＤＷｆ／１．１）１／２×ＭＷｆ
［ＤＷｐは経糸総繊度（ｄｔｅｘ）、ＭＷｐは経糸織密度（本／２．５４ｃｍ）、ＤＷｆ
は緯糸総繊度（ｄｔｅｘ）、ＭＷｆは緯糸織密度（本／２．５４ｃｍ）である。］
(7) Cover factor CF for fabric
The cover factor CF of the fabric was determined by the following equation.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
[DWp is the warp total fineness (dtex), MWp is the warp weave density (book / 2.54 cm), DWf
Is the weft total fineness (dtex), and MWf is the weft weave density (book / 2.54 cm). ]
（８）耐水圧
ＪＩＳ Ｌ１０９２ ７．１ Ｂ法に従って耐水圧（ｋＰａ）を測定した。
(8) Water pressure The water pressure (kPa) was measured according to JIS L1092 7.1 B method.
（９）遮光率
ＪＩＳ Ｌ１０５５ Ａ法により測定した。
(9) Shading ratio Measured according to JIS L1055 A method.
（１０）取扱い性
布帛を裁断した際にシワができるか否かで取扱い性を判定した。
(10) Handleability Handleability was determined based on whether wrinkles were formed when the cloth was cut.
［実施例１］
島成分としてポリエチレンテレフタレート（２８０℃における溶融粘度が１２００ポイズ、艶消し剤の含有なし）、海成分として５−ナトリウムスルホイソフタル酸６モル％と数平均分子量４０００のポリエチレングリコール６重量％を共重合したポリエチレンテレフタレート（２８０℃における溶融粘度が１７５０ポイズ）を用い（溶解速度比（海／島）＝２３０）、海：島＝３０：７０、島数＝８３６の海島型複合未延伸糸を、紡糸温度２８０℃、紡糸速度１５００ｍ／分で溶融紡糸して一旦巻き取った。
得られた未延伸糸を、延伸倍率２．５倍でローラー延伸し、次いで１５０℃で熱セットし、海島型複合延伸糸（フィラメント糸Ａ用マルチフィラメント）として巻き取った。得られた海島型複合延伸糸は５６ｄｔｅｘ／１０ｆｉｌであり、透過型電子顕微鏡ＴＥＭによる繊維横断面を観察したところ、島の形状は丸形状でかつ島の径は７００ｎｍであった。
[Example 1]
Polyethylene terephthalate (melt viscosity at 280 ° C .: 1200 poise, no matting agent) was copolymerized as an island component, 6 mol% of 5-sodium sulfoisophthalic acid and 6 wt% of polyethylene glycol having a number average molecular weight of 4000 were copolymerized as a sea component. Using polyethylene terephthalate (melt viscosity at 280 ° C. of 1750 poise) (dissolution rate ratio (sea / island) = 230), sea: island = 30: 70, sea islands-type composite undrawn yarn having 836 islands, spinning temperature It was melt-spun at 280 ° C. and a spinning speed of 1500 m / min and once wound up.
The obtained undrawn yarn was drawn by a roller at a draw ratio of 2.5 and then heat-set at 150 ° C. to be wound as a sea-island composite drawn yarn (multifilament for filament yarn A). The obtained sea-island composite stretched yarn was 56 dtex / 10 fill, and the cross section of the fiber was observed by a transmission electron microscope TEM. As a result, the shape of the island was round and the diameter of the island was 700 nm.
一方、フィラメント糸Ｂとして、ポリエチレンテレフタレートマルチフィラメント５６ｄｔｅｘ／７２ｆｉｌ（帝人（株）製）を用意した。
次いで、経糸用として前記フィラメント糸Ｂを無撚にて整経し、一方で、緯糸用として、前記海島型複合延伸糸（フィラメント糸Ａ用マルチフィラメントを用い、通常のレピア織機を使用して、織密度を経３７２本／２．５４ｃｍ、緯２００本／２．５４ｃｍにて図１に示す経二重織組織にて製織し、織物を得た。
そして、該織物を温度５５℃の２．５％水酸化ナトリウム水溶液にて上記海島型複合繊維の海成分のみを溶解した。その後、温度１２０℃、キープ時間２０分にて通常のリラックス、温度１３０℃、キープ時間４５分にて通常の染色加工を施した。さらに、温度１８０℃、時間１分で乾熱ファイナルセットを施した。
さらに、厚さ１０μｍ（目付け１６ｇ／ｍ２）のウレタンフイルム（市販品）を接着剤で織物の片面に貼り合わせた。
On the other hand, as the filament yarn B, a polyethylene terephthalate multifilament 56dtex / 72fil (manufactured by Teijin Limited) was prepared.
Then, for the warp, the filament yarn B is warped without twist, while for the weft, the sea-island composite drawn yarn (using a multifilament for the filament yarn A, using a normal rapier loom, Weaving was performed at a warp density of 372 yarns / 2.54 cm and a weft of 200 yarns / 2.54 cm in the warp double weave structure shown in FIG. 1 to obtain a woven fabric.
Then, only the sea component of the sea-island composite fiber was dissolved in the woven fabric with a 2.5% aqueous sodium hydroxide solution at a temperature of 55 ° C. Thereafter, normal relaxation was performed at a temperature of 120 ° C. and a keeping time of 20 minutes, and ordinary dyeing was performed at a temperature of 130 ° C. and a keeping time of 45 minutes. Further, a dry heat final set was performed at a temperature of 180 ° C. for a time of 1 minute.
Further, a urethane film (commercially available) having a thickness of 10 μm (basis weight: 16 g / m 2 ) was bonded to one surface of the woven fabric with an adhesive.
得られた織物において、目付けは１４０ｇ／ｍ２であり、厚さは２００μｍであった。また、該織物に含有されるフィラメント糸Ａの重量は３５ｇ／ｍ２、フィラメント糸Ａの単繊維径は７００ｎｍであり、フィラメント数は８３６０本であった。また、該織物に含有されるフィラメント糸Ｂの重量は６５ｇ／ｍ２、フィラメント糸Ｂの単繊維径は１６μｍであった。また、該織物において、近赤外線の平均反射率は７５％であった。また、遮光率が９９．９％、耐水圧が３６９ｋＰａであった。
次いで、該織物を用いて傘を得て使用したところ、近赤外線に対して優れた遮熱性を有し、かつ太陽光に対して優れた遮光性、かつ、雨に対しても優れた耐水性を有するものであった。また、取扱い性に優れるものであった。また、晴雨兼用傘として用いることができた。
In the obtained woven fabric, the basis weight was 140 g / m 2 and the thickness was 200 μm. The weight of the filament yarn A contained in the woven fabric was 35 g / m 2 , the single fiber diameter of the filament yarn A was 700 nm, and the number of filaments was 8,360. The weight of the filament yarn B contained in the woven fabric was 65 g / m 2 , and the single fiber diameter of the filament yarn B was 16 μm. Further, in the woven fabric, the average reflectance of near infrared rays was 75%. Further, the light shielding ratio was 99.9% and the water pressure resistance was 369 kPa.
Then, when an umbrella was obtained and used using the fabric, it had excellent heat shielding properties against near infrared rays, excellent light shielding properties against sunlight, and excellent water resistance against rain. It had the following. In addition, the handleability was excellent. It could also be used as an umbrella for both rain and rain.
［実施例２］
実施例１において、織密度を経３３０本／２．５４ｃｍ、緯２３１本／２．５４ｃｍにてツイル織組織にて製織すること以外は実施例１と同様に織物を製織した。
得られた織物において、目付けは１００ｇ／ｍ２であり、厚さは１５０μｍであった。該織物に含有されるフィラメント糸Ａの重量は３３ｇ／ｍ２であった。また、該織物において、近赤外線の平均反射率は７３％であった。また、遮光率が９９．９％、耐水圧が３６９ｋＰａであった。
次いで、該織物を用いて傘を得て使用したところ、近赤外線に対して優れた遮熱性を有し、かつ太陽光に対して優れた遮光性、かつ、雨に対しても優れた耐水性を有するものであった。また、取扱い性に優れるものであった。また、晴雨兼用傘として用いることができた。
[Example 2]
In Example 1, a woven fabric was woven in the same manner as in Example 1 except that weaving was performed in a twill weave structure at a weaving density of 330 / 2.54 cm and weft of 231 / 2.54 cm.
In the obtained woven fabric, the basis weight was 100 g / m 2 and the thickness was 150 μm. The weight of the filament yarn A contained in the woven fabric was 33 g / m 2 . Further, in the woven fabric, the average reflectance of near infrared rays was 73%. The light-shielding rate was 99.9% and the water pressure resistance was 369 kPa.
Then, when an umbrella was obtained and used using the fabric, it had excellent heat shielding properties against near infrared rays, excellent light shielding properties against sunlight, and excellent water resistance against rain. It had the following. In addition, the handleability was excellent. It could also be used as an umbrella for both rain and rain.
［比較例１］
ウレタンフィルムを張り合わせなかったことを除き、実施例１と同じ操作を繰り返した。
得られた織物において、目付けは１００ｇ／ｍ２であり、厚さは１７０μｍであった。該織物に含有されるフィラメント糸Ａの重量は３５ｇ／ｍ２、また、フィラメント糸Ａの単繊維径は７００ｎｍであり、フィラメント数は８３６０本であった。また、該織物に含有されるフィラメント糸Ｂの重量は６５ｇ／ｍ２、フィラメント糸Ｂの単繊維径は１６μｍであった。また、該織物において、近赤外線の平均反射率は７５％であった。また、遮光率が９５％、耐水圧が５ｋＰａであった。
次いで、該織物を用いて傘を得て使用したところ、近赤外線に対して遮熱性が低下し、太陽光に対して遮光性や雨に対する耐水性も十分ではなかった。また、取扱い性は不良であった。
[Comparative Example 1]
The same operation as in Example 1 was repeated except that the urethane film was not stuck.
In the obtained woven fabric, the basis weight was 100 g / m 2 and the thickness was 170 μm. The weight of the filament yarn A contained in the woven fabric was 35 g / m 2 , the single fiber diameter of the filament yarn A was 700 nm, and the number of filaments was 8,360. The weight of the filament yarn B contained in the woven fabric was 65 g / m 2 , and the single fiber diameter of the filament yarn B was 16 μm. Further, in the woven fabric, the average reflectance of near infrared rays was 75%. Further, the light blocking ratio was 95%, and the water pressure resistance was 5 kPa.
Then, when an umbrella was obtained and used using the woven fabric, the heat shielding property against near infrared rays was lowered, and the light shielding property against sunlight and water resistance against rain were not sufficient. Further, the handleability was poor.
本発明によれば、近赤外線に対して優れた遮熱性を有するだけでなく、遮光性、耐水性、および取扱い性にも優れた遮熱性布帛および繊維製品が提供され、その工業的価値は極めて大である。 According to the present invention, heat-shielding fabrics and fiber products which not only have excellent heat-shielding properties against near-infrared rays but also have excellent light-shielding properties, water resistance, and handleability are provided, and their industrial value is extremely high. Is big.
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| JP7111495B2 (en) * | 2018-04-10 | 2022-08-02 | 帝人フロンティア株式会社 | Thermal barrier fabrics and textiles |
| JP7028059B2 (en) * | 2018-05-23 | 2022-03-02 | トヨタ紡織株式会社 | Epidermis material |
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| KR100603037B1 (en) * | 2004-09-21 | 2006-07-24 | 신재옥 | waterproof cloth with keeping warm function |
| JP2007001079A (en) * | 2005-06-22 | 2007-01-11 | Teijin Fibers Ltd | Heat insulating sheet and heat insulating article |
| JP4571541B2 (en) * | 2005-06-24 | 2010-10-27 | 帝人ファイバー株式会社 | Method for producing moisture-permeable and waterproof polyester fabric |
| JP4571566B2 (en) * | 2005-09-29 | 2010-10-27 | 帝人ファイバー株式会社 | Method for producing fabric capable of adsorbing odor |
| JP5110993B2 (en) * | 2007-07-18 | 2012-12-26 | 小松精練株式会社 | Moisture permeable waterproof fabric |
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| JP2010163729A (en) * | 2009-01-19 | 2010-07-29 | Unitika Trading Co Ltd | Moisture-permeable and water-proof fabric and process for the production of same |
| JP5603064B2 (en) * | 2009-12-24 | 2014-10-08 | 帝人株式会社 | Woven knitted fabric and textile products with excellent heat insulation |
| JP5468998B2 (en) * | 2010-06-14 | 2014-04-09 | 帝人株式会社 | Heat-shielding woven and textile products |
| CN102785442A (en) * | 2011-05-17 | 2012-11-21 | 江阴兴吴呢绒科技有限公司 | Anti-static nanometer curtain fabric |
| CN103720326A (en) * | 2012-10-13 | 2014-04-16 | 江阴第三精毛纺有限公司 | Novel anti-microbial crease-resist curtain cloth capable of insulating solar radiation and collecting light at proper time |
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