JP4563773B2 - Thermal storage and warm clothes - Google Patents

Thermal storage and warm clothes Download PDF

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JP4563773B2
JP4563773B2 JP2004320650A JP2004320650A JP4563773B2 JP 4563773 B2 JP4563773 B2 JP 4563773B2 JP 2004320650 A JP2004320650 A JP 2004320650A JP 2004320650 A JP2004320650 A JP 2004320650A JP 4563773 B2 JP4563773 B2 JP 4563773B2
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JP2006132021A (en
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直幹 堀川
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Teijin Fibers Ltd
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Description

本発明は、表層、中間層、および裏層からなる複合構造を有し、優れた蓄熱保温性を有する蓄熱保温性衣料に関するものである。   The present invention relates to a heat storage and warming garment having a composite structure composed of a surface layer, an intermediate layer, and a back layer and having excellent heat storage and heat retention.

従来、保温性衣料として、生地厚みを厚くしたもの、生地の組織密度を上げたもの、中空繊維を用いたもの、樹脂綿を用いたものなどが知られている。しかしながら、これらは断熱性を利用したもので、人体の放熱は抑制することができるものの、低温環境下においては、十分な保温性能を維持することが困難であった。   Conventionally, as the heat-retaining garment, a fabric having a thick fabric thickness, a fabric having a higher tissue density, a fabric using hollow fibers, a fabric using resin cotton, and the like are known. However, these utilize heat insulating properties and can suppress heat dissipation of the human body, but it has been difficult to maintain sufficient heat retaining performance in a low temperature environment.

さらに近年では、保温性を高めるために赤外線吸収剤を繊維中に練りこんだり、生地表面に付着させることが提案されている(例えば特許文献1、特許文献2参照)。しかしながら、これらの保温性繊維材料で得られた被服を着用すると、太陽光に暴露されている間は高い保温性能を有するものの、屋内にはいり太陽光が届かなくなると、保温性能が低下するという問題があった。
また、特許文献3では、保温性をさらに一層高めるために、蓄熱剤が付着した蓄熱材層と断熱材層とを組合せた複合被服材料が提案されているが、その効果はまだ十分とはいえなかった。
Further, in recent years, it has been proposed to knead an infrared absorbent into a fiber or attach it to the surface of a fabric in order to improve heat retention (see, for example, Patent Document 1 and Patent Document 2). However, wearing clothing obtained from these heat-retaining fiber materials has a high heat-retaining performance while exposed to sunlight, but the heat-retaining performance is reduced when sunlight enters indoors and does not reach the sun. was there.
Further, in Patent Document 3, a composite clothing material is proposed in which a heat storage material layer to which a heat storage agent is adhered and a heat insulating material layer are combined in order to further increase the heat retention, but the effect is still sufficient. There wasn't.

特開平7−48709号公報JP 7-48709 A 特開2003−96663号公報JP 2003-96663 A 特開2004−58465号公報JP 2004-58465 A

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、表層、中間層、および裏層からなる複合構造を有し、優れた蓄熱保温性を有する蓄熱保温性衣料を提供することにある。   This invention is made | formed in view of said background, The objective is to provide the thermal storage heat retention clothing which has the composite structure which consists of a surface layer, an intermediate | middle layer, and a back layer, and has the outstanding thermal storage thermal insulation property. is there.

本発明者らは上記課題を達成するため鋭意検討した結果、表層、中間層、および裏層で衣料を構成し、その際、表層を中空繊維からなる低通気層、中間層を保温層、裏層を蓄熱層とすることにより、蓄熱層により暖められた保温層の暖かい空気が表層から逃げにくく、同時に表層に含まれる中空繊維の空気により表層の熱伝導率が小さくなるため熱伝導による放熱も低減され、その結果、優れた蓄熱保温性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。   As a result of intensive studies to achieve the above-mentioned problems, the present inventors constituted clothing with a surface layer, an intermediate layer, and a back layer, in which case the surface layer is a low-breathing layer made of hollow fibers, the intermediate layer is a heat retaining layer, the back layer By making the layer a heat storage layer, the warm air of the heat retaining layer warmed by the heat storage layer is difficult to escape from the surface layer, and at the same time, the heat conductivity of the surface layer is reduced by the air of the hollow fibers contained in the surface layer, so heat dissipation due to heat conduction is also possible As a result, the present inventors have found that excellent heat storage and heat retaining properties can be obtained, and have further conducted intensive studies to complete the present invention.

かくして、本発明によれば「表層、中間層、および裏層からなる複合構造を有する衣料であって、前記表層、中間層、および裏層が下記(1)〜(3)の要件を同時に満足することを特徴とする蓄熱保温性衣料。」が提供される。
(1)表層が、少なくとも中空繊維を含む織編物からなり、該織編物の通気性が、JIS L 1096−1998、6.27.1、A(フラジール型通気性試験機法)により測定した通気性で50cc/cm/s以下である。
(2)中間層が、嵩高性が5〜70cm/gの中綿である。
(3)裏層が、赤外線吸収剤を含む織編物である。
Thus, according to the present invention, "surface layer, an intermediate layer, and a garment having a composite structure consisting of a back layer, the surface layer, middle layer, and the backing layer are the following requirements (1) to (3) simultaneously satisfied Thermal storage heat-retaining clothing characterized in that "is provided.
(1) The surface layer is composed of a woven or knitted fabric containing at least hollow fibers, and the air permeability of the woven or knitted fabric is measured according to JIS L 1096-1998, 6.27.1, A (Fragile type air permeability test method). It is 50 cc / cm 2 / s or less.
(2) The intermediate layer is a batting having a bulkiness of 5 to 70 cm 3 / g.
(3) The back layer is a woven or knitted fabric containing an infrared absorber.

その際、前記表層に含まれる中空繊維が中空ポリエステル繊維であり、かつ該中空ポリエステル繊維の中空率が5%以上であることが好ましい。また、前記表層が織物からなり、該織物の経糸および/または緯糸に中空繊維が配され、かつ該織物のカバーファクター(CF)が1400以上であることが好ましい。
ただし、カバーファクター(CF)は下記式で表されるものである。
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 that case, it is preferable that the hollow fiber contained in the said surface layer is a hollow polyester fiber, and the hollow rate of this hollow polyester fiber is 5% or more. Moreover, it is preferable that the surface layer is made of a woven fabric, hollow fibers are arranged on the warp and / or the weft of the woven fabric, and the cover factor (CF) of the woven fabric is 1400 or more.
However, the cover factor (CF) is represented by the following formula.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
[DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm). ]

また、前記中間層を構成する中綿の目付けが20〜300g/mの範囲内であることが好ましい。かかる中綿は、ポリエステル短繊維からなることが好ましい。 Moreover, it is preferable that the fabric weight of the batting which comprises the said intermediate | middle layer exists in the range of 20-300 g / m < 2 >. Such batting is preferably made of polyester staple fibers.

前記裏層において、裏層を構成する織編物がポリエステル繊維からなることが好ましい。かかるポリエステル繊維には、赤外線微粒子が練りこまれていてもよい。また、裏層に含まれる赤外線微粒子が、裏層を構成する織編物の中間層側の面に付着していることが好ましい。   In the back layer, the knitted or knitted fabric constituting the back layer is preferably made of polyester fibers. Such polyester fiber may be kneaded with infrared fine particles. Moreover, it is preferable that the infrared fine particles contained in the back layer adhere to the surface on the intermediate layer side of the woven or knitted fabric constituting the back layer.

前記の赤外線微粒子としては、セラミックス微粒子または金属酸化物系微粒子であることが好ましい。本発明の蓄熱保温性衣料は、コート、ジャケットなどの防寒用衣料として好適に使用することができる。   The infrared fine particles are preferably ceramic fine particles or metal oxide fine particles. The heat storage and heat retaining garment of the present invention can be suitably used as a cold protection garment such as a coat or a jacket.

本発明によれば、表層、中間層、および裏層からなる複合構造を有し、優れた蓄熱保温性を有する蓄熱保温性衣料が得られる。   ADVANTAGE OF THE INVENTION According to this invention, the heat storage heat retention clothing which has the composite structure which consists of a surface layer, an intermediate | middle layer, and a back layer and has the outstanding heat storage heat retention property is obtained.

以下、本発明の実施の形態について詳細に説明する。
まず、本発明の蓄熱保温性衣料は、表層、中間層、および裏層からなる複合構造を有する。ここで、表層とは、衣料を着用した際、外気側に位置する層であり、裏層とは、最も肌側に位置する層である。
Hereinafter, embodiments of the present invention will be described in detail.
First, the heat storage and warming garment of the present invention has a composite structure including a surface layer, an intermediate layer, and a back layer. Here, the surface layer is a layer located on the outside air side when wearing clothing, and the back layer is a layer located most on the skin side.

前記の表層は、少なくとも中空繊維を含む織編物からなり、該織編物の通気性が、JIS L 1096−1998、6.27.1、A(フラジール型通気性試験機法)により測定した通気性で50cc/cm/s以下(好ましくは5〜30cc/cm/s)である。該通気性が50cc/cm/sよりも大きいと、中間層に蓄えられた暖かい空気が表層を通して外部へ逃げてしまい、十分な蓄熱保温性が得られず好ましくない。 The surface layer is composed of a woven or knitted fabric containing at least hollow fibers, and the air permeability of the woven or knitted fabric is measured according to JIS L 1096-1998, 6.27.1, A (Fragile type air permeability test method). And 50 cc / cm 2 / s or less (preferably 5 to 30 cc / cm 2 / s). When the air permeability is higher than 50 cc / cm 2 / s, the warm air stored in the intermediate layer escapes to the outside through the surface layer, which is not preferable because sufficient heat storage and heat retaining properties cannot be obtained.

前記中空繊維としては、単糸繊維が中空を有するものであれば特に限定されず、熱伝導率が低いポリエステル、アクリル、塩化ビニルなどの合成繊維や羊毛などが例示される。なかでも、中空ポリエステル繊維が好ましい。かかる中空繊維の中空率としては5%以上(より好ましくは15〜50%)であることが好ましい。該中空率が5%未満では、表層の熱伝導率が大きくなり、中間層に蓄えられた熱が、熱伝導により表層を通して外部へ逃げてしまい、十分な蓄熱保温性が得られないおそれがある。逆に、該中空率が50%よりも大きいと中空割れが発生しやすく中空繊維の製造が困難となるおそれがある。   The hollow fiber is not particularly limited as long as the single fiber has a hollow shape, and examples thereof include synthetic fibers such as polyester, acrylic, and vinyl chloride having low thermal conductivity, wool, and the like. Of these, hollow polyester fibers are preferred. The hollow ratio of such hollow fibers is preferably 5% or more (more preferably 15 to 50%). If the hollowness is less than 5%, the thermal conductivity of the surface layer increases, and the heat stored in the intermediate layer escapes to the outside through the surface layer due to thermal conduction, and there is a possibility that sufficient heat storage and heat retaining properties cannot be obtained. . On the contrary, if the hollow ratio is larger than 50%, hollow cracks are likely to occur, and it may be difficult to produce hollow fibers.

かかる中空繊維の単糸断面形状としては、中空断面であれば特に限定されず、丸中空、三角中空、四角中空などが例示される。なかでも製造の容易さの点で丸中空が好ましい。   The single fiber cross-sectional shape of the hollow fiber is not particularly limited as long as it is a hollow cross section, and examples thereof include a round hollow, a triangular hollow, and a square hollow. Among these, a round hollow is preferable in terms of ease of production.

前記中空ポリエステル繊維を形成するポリエステルは通常のものでよく、テレフタル酸を主たるジカルボン酸成分とし、少なくとも1種のグリコール、好ましくはエチレングリコール、トリメチレングリコール、テトラメチレングリコールなどから選ばれた少なくとも1種のアルキレングリコールを主たるグリコール成分とするポリエステルや、かかるポリエステルに第3成分が共重合された共重合ポリエステルが例示される。   The polyester that forms the hollow polyester fiber may be a normal one, with terephthalic acid as the main dicarboxylic acid component and at least one glycol, preferably at least one selected from ethylene glycol, trimethylene glycol, tetramethylene glycol, and the like. Examples thereof include polyesters having an alkylene glycol as a main glycol component, and copolymerized polyesters in which a third component is copolymerized with such polyester.

かかるポリエステル中には、微細孔形成剤、増粘分枝剤、艶消し剤、着色剤、各種改良剤等も必要に応じて配合されていてもよい。   In such polyester, a micropore forming agent, a thickening branching agent, a matting agent, a coloring agent, various improving agents, and the like may be blended as necessary.

前記中空繊維の形態は特に限定されず、長繊維(マルチフィラメント)でもよいし、短繊維からなる紡績糸でもよいが、防風性の点で長繊維(マルチフィラメント)であることが好ましい。単糸繊維繊度、フィラメント数、総繊度としては、各々単糸繊維繊度0.25〜2.5dtex、フィラメント数36〜288本、総繊度33〜167dtexの範囲内であることが前記の低通気性(防風性)が得られ好ましい。なお、かかる長繊維には、仮撚加工や、インターレースやタスランなどの空気加工が施されていてもよい。   The form of the hollow fiber is not particularly limited, and may be a long fiber (multifilament) or a spun yarn made of a short fiber, but is preferably a long fiber (multifilament) from the viewpoint of wind resistance. As the single yarn fiber fineness, the number of filaments, and the total fineness, the low air permeability is within the ranges of single yarn fiber fineness of 0.25 to 2.5 dtex, number of filaments of 36 to 288, and total fineness of 33 to 167 dtex. (Windproof property) is obtained and preferable. Such long fibers may be subjected to false twisting or air processing such as interlace or taslan.

前記表層を構成する前記織編物において、織編組織は特に限定されないが、平組織、綾組織、経二重織、緯二重織など通常の織組織を有する織物であって、該織物の経糸および/または緯糸に、中空繊維が配され、かつ該織物のカバーファクター(CF)が1400以上(好ましくは2000〜3300)であることが好ましい。かかるカバーファクター(CF)が1400よりも小さいと、前記の低通気性が得られないおそれがある。   In the woven or knitted fabric constituting the surface layer, the woven or knitted structure is not particularly limited, but is a woven fabric having a normal woven structure such as a plain structure, a twill structure, a warp double weave, a weft double weave, and a warp of the woven fabric. It is preferable that hollow fibers are arranged in the weft and / or the cover factor (CF) of the woven fabric is 1400 or more (preferably 2000 to 3300). When the cover factor (CF) is smaller than 1400, the low air permeability may not be obtained.

ただし、カバーファクター(CF)は下記式で表されるものである。
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。]
ここで、織物の密度としては、経糸織密度で100〜190本/2.54cm、緯糸織密度で80〜180本/2.54cmの範囲内であることが好ましい。
However, the cover factor (CF) is represented by the following formula.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
[DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm). ]
Here, the density of the woven fabric is preferably in the range of 100 to 190 yarns / 2.54 cm in the warp weave density and 80 to 180 yarns / 2.54 cm in the weft weave density.

次に、中間層は、嵩高性が5〜70cm/g(好ましくは20〜50cm/g)の中綿である。該嵩高性が5cm/gよりも小さいと、十分な断熱性が得られず好ましくない。逆に該嵩高性が70cm/gよりも大きいと、嵩が大きすぎて着用快適性が損なわれるおそれがある。かかる中綿の目付けとしては、20〜300g/mの範囲内であることが好ましい。厚みとしては0.5〜20mmの範囲内であることが好ましい。 Next, the intermediate layer, bulkiness 5~70cm 3 / g (preferably 20 to 50 cm 3 / g) is the batting. When the bulkiness is less than 5 cm 3 / g, it is not preferable because sufficient heat insulation cannot be obtained. On the other hand, if the bulkiness is greater than 70 cm 3 / g, the bulkiness is so large that wearing comfort may be impaired. The weight of the filling is preferably in the range of 20 to 300 g / m 2 . The thickness is preferably in the range of 0.5 to 20 mm.

かかる中綿は、ポリエステル短繊維からなることが好ましく、かかるポリエステル繊維を形成するポリエステルとしては、前記のような通常のポリエステルでよい。また、単糸繊度としては、0.6〜100dtex(より好ましくは1〜20dtex)であることが好ましく、さらには、捲縮数が3〜40個/25mm(好ましくは5〜30個/25mm)、捲縮率が3〜40%(好ましくは5〜30%)となるように捲縮が付与され、繊維長が3〜100mmに裁断されていることが好ましい。ポリエステル短繊維は、抗菌防臭、制菌、消臭、防ダニ、防炎などの機能を有する機能性ポリエステル繊維であってもよい。かかる中綿は、前記ポリエステル短繊維をウエブ状にしたものでもよいし、さらにアクリル酸エステル樹脂や水溶性ポリエステル樹脂などをスプレー処理し乾燥させた樹脂綿であってもよい。   Such batting is preferably made of polyester short fibers, and the polyester forming such polyester fibers may be the normal polyester as described above. The single yarn fineness is preferably 0.6 to 100 dtex (more preferably 1 to 20 dtex), and the number of crimps is 3 to 40/25 mm (preferably 5 to 30/25 mm). Further, it is preferable that crimps are applied so that the crimp rate is 3 to 40% (preferably 5 to 30%) and the fiber length is cut to 3 to 100 mm. The polyester short fiber may be a functional polyester fiber having functions such as antibacterial deodorization, bacteriostatic, deodorant, tick-proof and flameproof. Such a batting may be a web of the polyester short fiber, or may be a resin cotton obtained by spraying an acrylic ester resin or a water-soluble polyester resin and drying it.

次に、裏層は赤外線吸収剤を含む織編物である。かかる織編物を構成する繊維は特に限定されず、合成繊維、半合成繊維、天然繊維などの公知の繊維でよく、なかでも前記のようなポリエステル繊維が好ましい。単糸繊維繊度、フィラメント数、総繊度としては、各々単糸繊維繊度0.25〜2.5dtex、フィラメント数36〜288本、総繊度33〜167dtexの範囲内であることが好ましい。なお、仮撚加工や、インターレースやタスランなどの空気加工が施されていてもよい。裏層を構成する織編物の織編組織は特に限定されず通常の織編物でよい。   Next, the back layer is a woven or knitted fabric containing an infrared absorber. The fiber constituting the woven or knitted fabric is not particularly limited, and may be a known fiber such as a synthetic fiber, a semi-synthetic fiber, a natural fiber, etc. Among them, the polyester fiber as described above is preferable. As the single yarn fiber fineness, the number of filaments, and the total fineness, it is preferable that the single yarn fiber fineness is 0.25 to 2.5 dtex, the number of filaments is 36 to 288, and the total fineness is 33 to 167 dtex. Note that false twisting or air processing such as interlacing or taslan may be performed. The woven or knitted structure of the woven or knitted fabric constituting the back layer is not particularly limited, and may be a normal woven or knitted fabric.

赤外繊維吸収剤は、織編物を構成する繊維に練りこまれていてもよい。また、裏層を構成する織編物に付着していてもよい。特に裏層を構成する織編物の中間層側の面に付着していると、断熱層に含まれる空気をすばやく暖め、かかる暖かい空気が、表層と裏層との間に閉じ込められ、優れた蓄熱保温性が得られ好ましい。   The infrared fiber absorbent may be kneaded into the fibers constituting the woven or knitted fabric. Moreover, you may adhere to the woven / knitted fabric which comprises a back layer. In particular, if it adheres to the surface on the intermediate layer side of the woven or knitted fabric that constitutes the back layer, the air contained in the heat insulation layer is quickly warmed, and the warm air is trapped between the surface layer and the back layer, providing excellent heat storage. Heat retention is obtained, which is preferable.

かかる赤外線吸収剤としては、波長700〜2500nmの赤外線に対する吸収率が10%以上の物質であることが好ましく、炭化系・窒化系セラミックス微粒子、金属酸化物系微粒子、カーボンブラック、有機化合物の赤外線吸収色素などが例示される。なかでも、アンチモンドープ酸化錫(ATO)やスズドープ酸化インジューム(ITO)などの平均粒子径が100nm以下の金属酸化物系微粒子が好ましく例示される。かかる金属酸化物系微粒子は可視光線を透過する透明な材料であり、生地本体の色相に変化を与えない点で好ましい。   The infrared absorber is preferably a substance having an absorptivity of 10% or more for infrared rays having a wavelength of 700 to 2500 nm, and infrared absorption of carbonized / nitrided ceramic fine particles, metal oxide fine particles, carbon black, and organic compounds. Examples thereof include dyes. Of these, metal oxide fine particles having an average particle diameter of 100 nm or less, such as antimony-doped tin oxide (ATO) and tin-doped indium oxide (ITO), are preferably exemplified. Such metal oxide fine particles are a transparent material that transmits visible light, and are preferable in that they do not change the hue of the fabric body.

赤外線吸収剤を織編物の表面に固着させる方法としては、例えば、赤外線吸収剤とバインダー樹脂との配合組成物を、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で付着させた後、乾燥させる方法が好適に例示される。この際、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ほうが好ましい。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、織編物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。   As a method for fixing the infrared absorbent to the surface of the woven or knitted fabric, for example, a blended composition of the infrared absorbent and the binder resin is attached by a known application means such as a gravure coating method or a screen printing method, and then dried. The method of making it suitable is illustrated. At this time, the blended composition may be either water-based or solvent-based, but is preferably water-based in view of the working environment of the processing step. Examples of the solvent include toluene, isopropyl alcohol, dimethylformamide, methyl ethyl ketone, ethyl acetate and the like. This blended composition may be used in combination with an epoxy-based crosslinking agent. Furthermore, an appropriate additive may be further blended for the purpose of improving the adhesion to the woven or knitted fabric.

前記赤外線吸収剤とバインダー樹脂(樹脂固形分基準)との配合比率としては前者:後者で1:0.5〜1:50(より好ましくは1:5〜1:40)の範囲内にあることが好ましい。バインダー樹脂の配合比率が該範囲よりも小さいと、洗濯時に赤外線吸収剤が脱落する恐れがある。逆に、バインダー樹脂の配合比率を該範囲よりも多くしても、洗濯耐久性の効果はあまり変わらず経済的でない。   The blending ratio of the infrared absorber to the binder resin (resin solid content basis) is in the range of 1: 0.5 to 1:50 (more preferably 1: 5 to 1:40) in the former: latter. Is preferred. If the blending ratio of the binder resin is smaller than the above range, the infrared absorber may fall off during washing. On the contrary, even if the blending ratio of the binder resin is larger than the above range, the effect of washing durability is not changed so much and it is not economical.

前記の表層、中間層、および裏層は、必要に応じて染色加工仕上げされた後、表層が外気側、裏層が肌側となるよう縫製され、衣料となる。その際、表層、中間層、および裏層には、常法の吸水加工、撥水加工、起毛加工、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、再帰反射剤等の機能を付与する各種加工を付加適用してもよい。   The surface layer, the intermediate layer, and the back layer are dyed and finished as necessary, and then sewn so that the surface layer is on the outside air side and the back layer is on the skin side, thereby forming clothing. At that time, the surface layer, the intermediate layer, and the back layer are provided with conventional water absorption processing, water repellent processing, brushed processing, and further, UV shielding or antistatic agent, antibacterial agent, deodorant, insect repellent, phosphorescent agent, Various processes that provide functions such as a retroreflective agent may be additionally applied.

本発明の蓄熱保温性衣料において、裏層に含まれる赤外線吸収剤が太陽光により発熱すると、中間層に蓄えられた空気が暖められる。そして、この暖かい空気は、表層から逃げにくく、同時に表層に含まれる中空繊維の空気により、表層の熱伝導率が小さくなり熱伝導による放熱も防止され、その結果、優れた蓄熱保温性が得られる。   In the heat storage and heat retaining garment of the present invention, when the infrared absorber contained in the back layer generates heat by sunlight, the air stored in the intermediate layer is warmed. And this warm air is difficult to escape from the surface layer, and at the same time, the air of the hollow fiber contained in the surface layer reduces the heat conductivity of the surface layer and prevents heat dissipation due to heat conduction, and as a result, excellent heat storage and heat retention is obtained. .

本発明の蓄熱保温性衣料は、優れた蓄熱保温性を有するので、コート、ジャケットなどの防寒用衣料や、スキー、スケート、スノーボードなどのスポーツ用衣料として好適に使用することができる。   Since the heat storage and heat retaining garment of the present invention has excellent heat storage and heat retaining properties, it can be suitably used as cold clothing such as coats and jackets, and sports clothing such as skis, skates, and snowboards.

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。
(1)中空率
500倍断面画像から単繊維の断面積(中空部を含む)と中空部面積を測定し、その面積比を求めた。なお、n数は5でその平均値を算出した。
(2)通気性
JIS L 1096−1998、6.27.1、A(フラジール型通気性試験機法)により測定した。なお、n数は5でその平均値を算出した。
(3)嵩高性
JIS L 1097により測定した。なお、n数は5でその平均値を算出した。
(4)保温性
5℃、50%RHの恒温恒湿環境下で、30℃に設定された熱板上に試料を平面に配置し、さらに上方より3m/secの風を試料に当て、裏層裏面の温度変化を熱電対を用いて測定した。測定は、1分間放置後、エネルギー源として200Wレフランプ光源を用い、高さ50cmから照射し、30秒間照射し、その後10分間再び放置した。温度変化の記録は照射前、レフランプ照射30秒後、試験終了時をそれぞれ記録した。
Next, although the Example and comparative example of this invention are explained in full detail, this invention is not limited by these. In addition, each measurement item in an Example was measured with the following method.
(1) Hollow ratio The cross-sectional area (including the hollow part) and the hollow part area of the single fiber were measured from the 500-fold cross-sectional image, and the area ratio was determined. In addition, n number was set to 5 and the average value was calculated.
(2) Air permeability Measured according to JIS L 1096-1998, 6.27.1, A (Fragile type air permeability tester method). In addition, n number was set to 5 and the average value was calculated.
(3) Bulkiness Measured according to JIS L 1097. In addition, n number was set to 5 and the average value was calculated.
(4) Heat retention In a constant temperature and humidity environment of 5 ° C. and 50% RH, place the sample on a flat plate on a hot plate set at 30 ° C. The temperature change on the back side of the layer was measured using a thermocouple. In the measurement, after leaving for 1 minute, a 200 W reflex lamp light source was used as an energy source. The temperature change was recorded before irradiation, 30 seconds after irradiation of the reflex lamp, and at the end of the test.

[実施例1]
まず、表層(低通気層)用として、中空率25%、総繊度110dtex/24filのポリエチレンテレフタレートマルチフィラメントを経緯に用いて、経糸密度130本/2.54cm、緯糸密度90本/2.54cmの平織物を織成した。そして、該織物に常法の精錬、リラックス、染色加工を施し、乾燥、セット処理した。得られた織物の通気性は7cc/cm/sであった。
[Example 1]
First, for the surface layer (low air permeability layer), using a polyethylene terephthalate multifilament having a hollowness of 25% and a total fineness of 110 dtex / 24 fil for warp, the warp density is 130 / 2.54 cm and the weft density is 90 / 2.54 cm. Weaved a plain fabric. The woven fabric was subjected to conventional refining, relaxation, and dyeing, and dried and set. The air permeability of the obtained woven fabric was 7 cc / cm 2 / s.

また、中間層(保温層)用として、ポリエチレンテレフタレート短繊維(単糸繊度6.6dtex、繊維長51mm)からなる綿を使用した。綿の目付けは25g/m、嵩高性は40cm/gであった。 Further, cotton made of polyethylene terephthalate short fibers (single yarn fineness 6.6 dtex, fiber length 51 mm) was used for the intermediate layer (heat insulating layer). Cotton basis weight was 25 g / m 2 and bulkiness was 40 cm 3 / g.

さらに、裏層用として、前記表層用織物に下記の配合組成物(赤外線吸収剤)を固着させた。
[配合組成物の組成]
・アクリル系バインダー 60.0%
(固形分40%)
・アンチモンドープ酸化錫水分散液 5.0%
(固形分15%、アンチモンドープ酸化錫の熱伝導率50W/m・K、アンチモンドープ酸化錫の微粒子径50nm以下)
・水 35.0%
Further, for the back layer, the following composition (infrared absorber) was fixed to the surface layer fabric.
[Composition of compounding composition]
・ Acrylic binder 60.0%
(Solid content 40%)
-Antimony-doped tin oxide aqueous dispersion 5.0%
(Solid content 15%, antimony-doped tin oxide thermal conductivity 50 W / m · K, antimony-doped tin oxide fine particle diameter 50 nm or less)
・ Water 35.0%

次いで、105メッシュのグラビアロールを使用して該織物の片面に上記配合組成物を付与した(アンチモンドープ酸化錫分0.8g/m2、バインダー樹脂固形分24.2g/m2)後、160℃で乾燥し、裏層(蓄熱層)を得た。 Subsequently, the composition was applied to one side of the woven fabric using a 105 mesh gravure roll (antimony-doped tin oxide content 0.8 g / m 2 , binder resin solid content 24.2 g / m 2 ), and 160 It dried at ° C and the back layer (heat storage layer) was obtained.

こうして得られた表層、中間層、裏層を用い、その際、裏層の赤外線吸収剤が付着した面が中間層側になるように配置し、コートを縫製した。そして、該コートから30cm×30cmのサンプルを切り出し保温性評価を実施した。評価結果は、照射前温度27.2℃、30秒照射後温度39.4℃、照射後10分経過後温度34.2℃と、レフランプ照射30秒後、および照射後10分後の裏面温度はいずれも高く優れた保温性を有していた。   The surface layer, the intermediate layer, and the back layer thus obtained were used, and at that time, the surface of the back layer was disposed so that the surface to which the infrared absorber was attached was on the intermediate layer side, and the coat was sewn. Then, a 30 cm × 30 cm sample was cut out from the coat and evaluated for heat retention. The evaluation results are as follows: pre-irradiation temperature 27.2 ° C., 30-second post-irradiation temperature 39.4 ° C., 10-minute post-irradiation temperature 34.2 ° C., reflex lamp irradiation 30 sec. All had high and excellent heat retention.

[比較例1]
実施例1において、裏層用として赤外線吸収剤が固着していないものを用いること以外は、実施例1と同様にした。評価結果は、照射前温度27.2℃、30秒照射後温度36.2℃、照射後10分経過後温度27.3℃と、レフランプ照射30秒後、温度上昇はしているものの、照射後10分後ではほぼ試験前の温度に戻っていた。
[Comparative Example 1]
In Example 1, it carried out similarly to Example 1 except using the thing which the infrared absorber does not adhere for the back layer. The evaluation results were as follows: the temperature before irradiation was 27.2 ° C., the temperature after irradiation for 30 seconds was 36.2 ° C., the temperature after 10 minutes after irradiation was 27.3 ° C., and the temperature increased after 30 seconds from the irradiation of the reflex lamp. After 10 minutes, the temperature almost returned to the pre-test temperature.

[比較例2]
実施例1において、表層用の織物の密度を、経糸密度95本/2.54cm、緯糸密度80本/2.54cmとし、得られた織物の通気性を75cc/cm/sに変更すること以外は、実施例1と同様にした。評価結果は、照射前温度26.0℃、30秒照射後温度39.0℃、照射後10分経過後温度26.2℃と、照射前の温度は上方からの風の影響により低く、レフランプ照射30秒後、温度上昇は実施例1とほぼ同様まで上昇したが、照射後10分後ではほぼ試験前の温度に戻っていた。
[Comparative Example 2]
In Example 1, the density of the fabric for the surface layer is 95 warp / 2.54 cm, the weft density is 80 / 2.54 cm, and the air permeability of the resulting fabric is changed to 75 cc / cm 2 / s. Except for this, the procedure was the same as in Example 1. The evaluation results were as follows: the temperature before irradiation was 26.0 ° C, the temperature after irradiation for 30 seconds was 39.0 ° C, the temperature after 10 minutes after irradiation was 26.2 ° C, and the temperature before irradiation was low due to the influence of wind from above. After 30 seconds of irradiation, the temperature rise rose to almost the same as in Example 1, but 10 minutes after irradiation, the temperature almost returned to the pre-test temperature.

本発明によれば、表層、中間層、および裏層からなる複合構造を有し、優れた蓄熱保温性を有する蓄熱保温性衣料が得られ、その工業的価値は極めて大である。   ADVANTAGE OF THE INVENTION According to this invention, the heat storage heat retention clothing which has the composite structure which consists of a surface layer, an intermediate | middle layer, and a back layer and has the outstanding heat storage heat retention property is obtained, The industrial value is very large.

Claims (10)

表層、中間層、および裏層からなる複合構造を有する衣料であって、前記表層、中間層、および裏層が下記(1)〜(3)の要件を同時に満足することを特徴とする蓄熱保温性衣料。
(1)表層が、少なくとも中空繊維を含む織編物からなり、該織編物の通気性が、JIS L 1096−1998、6.27.1、A(フラジール型通気性試験機法)により測定した通気性で50cc/cm/s以下である。
(2)中間層が、嵩高性が5〜70cm/gの中綿である。
(3)裏層が、赤外線吸収剤を含む織編物である。
Superficial, intermediate layer, and a garment having a composite structure consisting of a back layer, the surface layer, middle layer, and the heat storage thermal insulation which backing layer is characterized by satisfying the following requirements (1) to (3) simultaneously Sex clothing.
(1) The surface layer is composed of a woven or knitted fabric containing at least hollow fibers, and the air permeability of the woven or knitted fabric is measured according to JIS L 1096-1998, 6.27.1, A (Fragile type air permeability test method). It is 50 cc / cm 2 / s or less.
(2) The intermediate layer is a batting having a bulkiness of 5 to 70 cm 3 / g.
(3) The back layer is a woven or knitted fabric containing an infrared absorber.
前記表層に含まれる中空繊維が中空ポリエステル繊維であり、かつ該中空ポリエステル繊維の中空率が5%以上である、請求項1に記載の蓄熱保温性衣料。   The heat storage and heat-retaining clothing according to claim 1, wherein the hollow fibers contained in the surface layer are hollow polyester fibers, and the hollow polyester fibers have a hollow ratio of 5% or more. 前記表層が織物からなり、該織物の経糸および/または緯糸に中空繊維が配され、かつ該織物のカバーファクター(CF)が1400以上である、請求項1または請求項2に記載の蓄熱保温性衣料。
ただし、カバーファクター(CF)は下記式で表されるものである。
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。]
The heat storage heat retaining property according to claim 1 or 2, wherein the surface layer is made of a woven fabric, hollow fibers are arranged in the warp and / or the weft of the woven fabric, and the cover factor (CF) of the woven fabric is 1400 or more. Clothing.
However, the cover factor (CF) is represented by the following formula.
CF = (DWp / 1.1) 1/2 × MWp + (DWf / 1.1) 1/2 × MWf
[DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm). ]
前記中間層を構成する中綿の目付けが20〜300g/mの範囲内である、請求項1〜3のいずれかに記載の蓄熱保温性衣料。 The heat storage and heat-retaining clothing according to any one of claims 1 to 3, wherein the weight of the batting constituting the intermediate layer is within a range of 20 to 300 g / m2. 前記中間層を構成する中綿がポリエステル短繊維からなる、請求項1〜4のいずれかに記載の蓄熱保温性衣料。   The heat storage and heat-retaining garment according to any one of claims 1 to 4, wherein the batting constituting the intermediate layer is made of polyester short fibers. 前記裏層を構成する織編物がポリエステル繊維からなる、請求項1〜5のいずれかに記載の蓄熱保温性衣料。   The heat storage and warming clothing according to any one of claims 1 to 5, wherein the knitted or knitted fabric constituting the back layer is made of a polyester fiber. 前記裏層に含まれる赤外線微粒子が、裏層に含まれるポリエステル繊維に練りこまれてなる、請求項6に記載の蓄熱保温性衣料。   The heat storage and heat retaining garment according to claim 6, wherein the infrared fine particles contained in the back layer are kneaded into the polyester fiber contained in the back layer. 前記裏層に含まれる赤外線微粒子が、裏層を構成する織編物の中間層側の面に付着してなる、請求項1〜7のいずれかに記載の蓄熱保温性衣料。   The heat-retaining and warming garment according to any one of claims 1 to 7, wherein the infrared fine particles contained in the back layer are attached to a surface on the intermediate layer side of the woven or knitted fabric constituting the back layer. 前記の赤外線微粒子が、セラミックス微粒子または金属酸化物系微粒子である、請求項1〜8のいずれかに記載の蓄熱保温性衣料。   The heat-retaining and warming clothing according to any one of claims 1 to 8, wherein the infrared fine particles are ceramic fine particles or metal oxide-based fine particles. 蓄熱保温性衣料が、コート、ジャケットなどの防寒用衣料である、請求項1〜9のいずれかに記載の蓄熱保温性衣料。   The heat storage and warming clothing according to any one of claims 1 to 9, wherein the heat storage and warming clothing is a cold protection clothing such as a coat and a jacket.
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JP5231337B2 (en) * 2009-06-02 2013-07-10 帝人フロンティア株式会社 Moisture permeable waterproof fabric and textile products
JP5902391B2 (en) * 2011-01-25 2016-04-13 帝人フロンティア株式会社 Thermal insulation fabric and textile products
CN112410973A (en) * 2020-11-19 2021-02-26 宁波大千纺织品有限公司 Warm-keeping polyester composite elastic fiber fabric and preparation method thereof

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