JP5319377B2 - Thermal storage fabric and non-woven fabric for batting - Google Patents
Thermal storage fabric and non-woven fabric for batting Download PDFInfo
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- JP5319377B2 JP5319377B2 JP2009100981A JP2009100981A JP5319377B2 JP 5319377 B2 JP5319377 B2 JP 5319377B2 JP 2009100981 A JP2009100981 A JP 2009100981A JP 2009100981 A JP2009100981 A JP 2009100981A JP 5319377 B2 JP5319377 B2 JP 5319377B2
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本発明は、屋外で使用するスポーツ衣料や防寒衣料において、太陽光により効率的に発熱及び蓄熱することができる布帛、および黒い色が表地に透けることない意匠性のよい中綿用不織布に関する。 [Technical Field] The present invention relates to a fabric that can efficiently generate heat and store heat by sunlight in sports clothing and cold clothing to be used outdoors, and a non-woven fabric for batting that has a good design and does not allow black color to be seen through the surface.
従来から、衣料素材はその用途に合わせて、吸汗や防汚、防寒など様々な機能を付与されてきた。これら機能の中で、発熱機能に関しても鋭意検討がなされてきた。 Conventionally, clothing materials have been given various functions such as sweat absorption, antifouling, and cold protection according to their use. Among these functions, extensive studies have been made on the heat generation function.
特許文献1では炭化ジルコニウムに代表される金属炭化物を芯部に含有した芯鞘複合熱可塑性繊維により、太陽光エネルギーを吸収して発熱することを特徴とする保温繊維が提案されている。しかしながら、金属炭化物は一般的に粒度が大きく、粗大粒子を含むことから、繊維中に高濃度で添加することが困難で、繊維そのものの蓄熱性能を高めるには限界があり、このため布帛として十分な蓄熱性能を得るためには、布帛を構成する原綿中の保温繊維の割合を高くする必要があり、このため黒色に近い外観しか得られないと言う欠点があった。 Patent Document 1 proposes a heat-retaining fiber that absorbs sunlight energy and generates heat by a core-sheath composite thermoplastic fiber containing a metal carbide typified by zirconium carbide in the core. However, since metal carbide generally has a large particle size and contains coarse particles, it is difficult to add to the fiber at a high concentration, and there is a limit to improving the heat storage performance of the fiber itself. In order to obtain a good heat storage performance, it is necessary to increase the proportion of the heat-retaining fibers in the raw cotton constituting the fabric, and there is a drawback that only an appearance close to black can be obtained.
また特許文献2でも同じようにカーボンブラック、炭化ジルコニムなどの蓄熱剤を含有した繊維糸条を含む芯地が提案されている。カーボンブラックなど蓄熱性能の高い粒子を用いているものの、カーボンブラックの添加濃度が十分に高められておらず、繊維全体に分散しているために、十分な発熱性能を得ようとした場合、芯地そのものが黒色となり、芯地を包む表地を通して透けることが問題となっていた。
一方で、特許文献3では、酸化チタン、酸化ジルコニウム、酸化ケイ素など遠赤外線放射特性のある粒子を含むアクリル系合成繊維が提案されている。添加される微粉末が黒色粒子でない場合、染色が自由にでき、意匠性のある布帛が得られるものの、太陽光を黒色粒子ほど有効に吸収することができず、布帛としては十分な蓄熱性能を得ることができないと言う問題があった。
On the other hand, Patent Document 3 proposes an acrylic synthetic fiber including particles having far-infrared radiation characteristics such as titanium oxide, zirconium oxide, and silicon oxide. When the added fine powder is not black particles, the fabric can be freely dyed and a designable fabric can be obtained, but sunlight cannot be absorbed as effectively as the black particles, and the fabric has sufficient heat storage performance. There was a problem that I could not get.
本発明は、太陽光を効率的に吸収できる添加剤ができる限り高い濃度で含有した繊維を、布帛を構成する原糸の一部として使用することで、十分な蓄熱性能を持ちながら、濃色であれば任意に染色できる布帛、および表地と中綿、裏地から構成される防寒衣料などにおいて、表地から中綿が透け意匠性を損なうことなく、太陽光を効率的に蓄熱できる中綿用不織布を提供することにある。 The present invention uses a fiber containing an additive capable of efficiently absorbing sunlight at a concentration as high as possible as a part of the raw yarn constituting the fabric, so that it has a sufficient heat storage performance and has a dark color. Provided is a non-woven fabric for batting that can efficiently store sunlight without sacrificing the design properties of the fabric that can be arbitrarily dyed, and the winter clothing composed of the outer fabric, the inner cotton, and the lining, without impairing the design. There is.
本発明の要旨は、以下の要件を満たすL*値が40以上である芯鞘複合繊維を含む蓄熱性布帛にある。
・芯部または鞘部にカーボンブラックを含有する。
・芯部または鞘部のカーボンブラックの濃度が30質量%以上である。
なお、L*値の測定は、染色をしていない布帛を、分光色彩計(株式会社島津製作所製
製品名:CLR−7100F)を使用して測定した。
The gist of the present invention resides in a heat storage fabric including a core-sheath composite fiber having an L * value of 40 or more that satisfies the following requirements.
・ Contains carbon black in the core or sheath.
-The concentration of carbon black in the core or sheath is 30% by mass or more.
In addition, the measurement of L * value measured the cloth which has not dye | stained the spectral color meter (Shimadzu Corporation make)
Product name: CLR-7100F).
本発明により、濃色であれば任意の色に染色ができ、太陽光を吸収して十分な蓄熱性能を有する布帛を得ることができ、冬期の屋外で暖かく快適に使用できるスポーツ衣料や防寒着を得ることができるようになる。 According to the present invention, sports clothes and winter clothes that can be dyed in any color as long as they are dark, can obtain a fabric having sufficient heat storage performance by absorbing sunlight, and can be used warmly and comfortably outdoors in winter. You will be able to get
以下、本発明について詳しく説明する。 The present invention will be described in detail below.
本発明の蓄熱性布帛に蓄熱性を付与するために、蓄熱性能を有する繊維が含まれてなければならない。蓄熱性繊維の製造に使用される蓄熱剤としては、炭化ジルコニウム、及び炭化チタン、炭化ハフニウム等の金属炭化物や、鉄、銅、アルミニウム、鉛、錫、金、銀、ニッケルなどに代表される金属類及びそれらの酸化物、硫化物、カルボニル塩、またはインジウム・スズ酸化物、アンチモン・スズ酸化物、酸化亜鉛の導電性金属酸化物及びこれらの硫酸バリウム、酸化チタン、チタン酸カリ、アルミニウムの担体微粒子にコーティングした非金属系微粒子、またはファーネスブラック、チャネルブラック、サーマルブラック、アセチレンブラックのカーボンブラックが挙げられるが、経済的に安価で粗大粒子の少ない微粒子の製造技術が工業的に確立されており、発熱性に優れるカーボンブラックを使用することが好ましい。
カーボンブラックの添加ついては、布帛全体に均一となるように添加すると、布帛全体にカーボンブラックによる黒色が発現するために、後から所望の色に染色することが困難となる。染色性能を改善するために、カーボンブラックは、十分な蓄熱性能が得られる量を、布帛中に局在化させて添加することが必要である。
In order to impart heat storage properties to the heat storage fabric of the present invention, fibers having heat storage performance must be included. Examples of heat storage agents used in the manufacture of heat storage fibers include zirconium carbide and metal carbides such as titanium carbide and hafnium carbide, and metals such as iron, copper, aluminum, lead, tin, gold, silver, and nickel. And their oxides, sulfides, carbonyl salts, or indium tin oxide, antimony tin oxide, conductive metal oxides of zinc oxide and their barium sulfate, titanium oxide, potassium titanate, aluminum carriers Non-metallic fine particles coated on fine particles, or carbon black of furnace black, channel black, thermal black, acetylene black, etc., but production technology for fine particles that are economically inexpensive and have few coarse particles has been established industrially. It is preferable to use carbon black which is excellent in heat generation.
Regarding the addition of carbon black, if it is added so as to be uniform throughout the entire fabric, black color due to carbon black appears throughout the entire fabric, making it difficult to later dye it to a desired color. In order to improve the dyeing performance, it is necessary to add carbon black in such an amount that a sufficient heat storage performance can be obtained while being localized in the fabric.
本発明では、蓄熱性布帛を構成するカーボンブラックを含有する芯鞘複合繊維中の芯部又は鞘部のカーボンブラックの濃度は30質量%以上であることが必要である。30質量%未満の場合には、十分な蓄熱性能を得るために布帛中に添加しなければならないカーボンブラック含有芯鞘複合繊維の量が増えるために、後から布帛を染色する場合に、色相が限定されるために好ましくない。また、中綿として使用する際にも表地からカーボンブラックを添加した繊維が容易に確認でき意匠性を損なうために好ましくない。 In this invention, the density | concentration of the carbon black of the core part or sheath part in the core-sheath composite fiber containing the carbon black which comprises heat storage cloth needs to be 30 mass% or more. When the amount is less than 30% by mass, the amount of carbon black-containing core-sheath composite fiber that must be added to the fabric in order to obtain sufficient heat storage performance increases. It is not preferable because it is limited. Moreover, when using as a batting, the fiber which added carbon black from a surface material can be confirmed easily, and it is unpreferable since the design property is impaired.
カーボンブラック濃度の上限は紡糸可能な範囲で高いことが望ましいが、繊維の製造段階での紡糸安定性の点から、60質量%以下の範囲が特に望ましい。
カーボンブラックを含有する繊維については、ポリエステル繊維やナイロン繊維或いはポリプロピレン繊維などの一般的な溶融紡糸に製造される合成繊維、或いはアクリル繊維やビニロン繊維など湿式紡糸により製造される合成繊維など、一般的合成繊維を挙げることができるが、湿式紡糸方法では、芯部又は鞘部のカーボンブラック濃度を30質量%以上の濃度に上げた場合にも工業的に繊維の製造が可能である。さらに耐熱性、耐候性などの点から、アクリル繊維であることが特に好ましい。アクリル繊維の形態については特に限定されず、長繊維であっても、短繊維であってもよい。
カーボンブラックを含有する部位については、芯鞘複合繊維の芯部又は鞘部であればよく、芯鞘複合繊維はどのような繊維断面の形状であってもよいが、繊維の表面にカーボンブラックの露出がないか、または露出が少ない芯鞘複合断面の芯部分への添加が脱落やガイドなどの磨耗が少ないことから好ましい。
The upper limit of the carbon black concentration is preferably as high as possible within the range where spinning is possible, but the range of 60% by mass or less is particularly desirable from the viewpoint of spinning stability at the fiber production stage.
For fibers containing carbon black, synthetic fibers manufactured by general melt spinning such as polyester fiber, nylon fiber or polypropylene fiber, or synthetic fibers manufactured by wet spinning such as acrylic fiber or vinylon fiber, etc. Although a synthetic fiber can be mentioned, in the wet spinning method, the fiber can be industrially produced even when the carbon black concentration of the core portion or the sheath portion is increased to 30% by mass or more. Furthermore, acrylic fibers are particularly preferable from the viewpoints of heat resistance and weather resistance. The form of the acrylic fiber is not particularly limited, and may be a long fiber or a short fiber.
About the site | part containing carbon black, what is necessary is just the core part or sheath part of a core-sheath composite fiber, and a core-sheath composite fiber may have any fiber cross-sectional shape, Addition to the core portion of the core-sheath composite cross section with no exposure or low exposure is preferable because of less wear such as dropout and guide.
前記蓄熱繊維の布帛全体に占める割合は、十分な蓄熱性能が得られ、かつ濃色系で任意染色できる範囲に設定されなければならない。十分な蓄熱性能とは実施例記載の蓄熱温度評価方法にて、40℃以上の温度が得られる範囲いい、カーボンブラックを添加した蓄熱性繊維のカーボンブラック濃度と芯鞘比率の割合からその下限値が変動する。
濃色系で任意に染色ができる範囲とは、染色後の外観にカーボンブラック含有芯鞘複合繊維が目視で判定し難い範囲を指し、そのような外観が得られる範囲は、染色前の布帛が示す明度の測定により限定される。
布帛を構成する原糸の形態や組織に係わらず、カーボンブラック含有芯鞘複合繊維の添加量の範囲は、布帛全体の明度L*値が40以下となるの範囲でなければならない。L*値が40より小さい値となる場合には、濃色に染色する場合においても、染色後の外観や中綿として使用した際に表地を通して見られる外観にカーボンブラック含有芯鞘複合繊維が、容易に目視で確認できるために好ましくない。
カーボンブラックを含有する芯鞘複合繊維と混合して使用される繊維としては、綿、麻の植物繊維、絹、羊毛、モヘア等の動物繊維、レーヨン、キュプラなどの再生繊維、アセテート繊維、ビニロン繊維、ポリエステル繊維、ナイロン繊維、アクリル繊維、ポリプロピレン繊維の合成繊維が挙げられる。
The ratio of the heat storage fibers to the entire fabric must be set in a range where sufficient heat storage performance can be obtained and can be arbitrarily dyed in a dark color system. Sufficient heat storage performance refers to the range in which a temperature of 40 ° C. or higher can be obtained by the heat storage temperature evaluation method described in the examples, and the lower limit value from the ratio of the carbon black concentration and the core-sheath ratio of the heat storage fiber added with carbon black Fluctuates.
The range that can be arbitrarily dyed in a dark color system refers to the range in which the carbon black-containing core-sheath composite fiber is difficult to visually determine in the appearance after dyeing, and the range in which such an appearance is obtained is that of the fabric before dyeing Limited by the measurement of brightness shown.
Regardless of the form and structure of the yarn constituting the fabric, the range of the carbon black-containing core-sheath composite fiber should be within the range where the lightness L * value of the entire fabric is 40 or less. When the L * value is less than 40, the carbon black-containing core-sheath composite fiber can easily be seen in the appearance after dyeing and the outer appearance when used as batting even when dyeing in a dark color. It is not preferable because it can be visually confirmed.
Fibers used by mixing with core-sheath composite fibers containing carbon black include cotton, hemp plant fibers, animal fibers such as silk, wool, mohair, regenerated fibers such as rayon and cupra, acetate fibers, and vinylon fibers. , Polyester fiber, nylon fiber, acrylic fiber, and synthetic fiber of polypropylene fiber.
また混合方法は、混紡、混繊、交織、交編の任意の方法があってよい。 The mixing method may be any method of blending, blending, union, knitting.
蓄熱性布帛において、形状が布帛状であればその織編組織は特に限定されない。例えば、平織、綾織、朱子織の織組織、トリコット編地、横編地の編組織、不織布などが挙げられる。 In the heat storage fabric, the woven or knitted structure is not particularly limited as long as the shape is a fabric. Examples include plain weave, twill weave, satin weave, tricot knitted fabric, weft knitted fabric, non-woven fabric, and the like.
以下、実施例をあげて本発明を説明する。
(布帛の調整方法)
ポリエステルステープル(東レ株式会社製 製品名:テトロンT402 1.7T52)とカーボンブラック含有芯鞘複合繊維を表1の割合で十分に混合した後、ミニチュアカード(大和機工株式会社製 型式S8D)を2回通し、3回目にカードから出てきた繊維を積層しながら、目付け100g/m2となるように採取した。
得られた繊維の積層体を日本フィルコン株式会社製スパンレース用FOP76上に置き、ウォータージェットで不織布に加工し、130℃で5分間プレス乾燥した。
(L*値の測定)
染色をしていない不織布を、分光色彩計(株式会社島津製作所製 製品名:CLR−7100F)を使用して測定した。布帛は2枚重ねとした。
(蓄熱温度の測定)
サーモトレーサ(NEC三栄株式会社製、製品名:TH7102MV)を使用して図1のようにレフランプ(松下電器産業(株)製、製品名:PRF−500W)と布帛サンプルを設置し、ランプを点灯してから30秒後のレフランプ直下の布帛表面温度を測定した。
Hereinafter, the present invention will be described with reference to examples.
(Method for adjusting fabric)
Polyester staples (product name: Tetoron T402 1.7T52 manufactured by Toray Industries, Inc.) and carbon black-containing core-sheath composite fibers are thoroughly mixed in the proportions shown in Table 1, and then miniature cards (model S8D manufactured by Daiwa Kiko Co., Ltd.) are used twice. Through the third time, while collecting the fibers coming out of the card, it was collected so as to have a basis weight of 100 g / m2.
The obtained fiber laminate was placed on a spunlace FOP 76 manufactured by Nippon Filcon Co., Ltd., processed into a nonwoven fabric with a water jet, and press dried at 130 ° C. for 5 minutes.
(L * value measurement)
The non-dyed nonwoven fabric was measured using a spectral colorimeter (manufactured by Shimadzu Corporation, product name: CLR-7100F). Two fabrics were stacked.
(Measurement of heat storage temperature)
Using a thermo tracer (manufactured by NEC Sanei Co., Ltd., product name: TH7102MV), install a reflex lamp (manufactured by Matsushita Electric Industrial Co., Ltd., product name: PRF-500W) and fabric sample as shown in FIG. Then, the fabric surface temperature just under the reflex lamp 30 seconds later was measured.
(表地からの外観)
84dtex36フィラメントのポリエステル繊維を経糸及び緯糸に使用した平織生地を2枚重ねで不織布を包み、外観を目視で確認し、芯鞘複合繊維が目立つかどうか判定した。芯鞘複合繊維が目視で容易に確認できる場合は外観不良とし、確認できない場合には外観良好とした。
染色後、カーボンブラック含有芯鞘複合繊維が目視で容易に確認でき、色相に影響が大きい場合は外観不良とし、色相への影響が小さい場合には外観良好とした。
(実施例1〜3、比較例1〜2)
カーボンブラック(三菱化学株式会社製、製品名:ファーネスブラックMA100B)を、芯部に芯部の質量に対して、濃度32質量%で添加し、芯鞘質量比15対85である繊度3.3dtexのアクリル繊維を、長さ38mmにカットしたものをカーボンブラック含有した芯鞘複合繊維として、表1の割合で不織布を作成し、各評価を行った。実施例1から3では、いずれもL*値が40以上の値が得られ、外観についても、良好であった。蓄熱温度についても、40℃以上の値が得られた。
一方、比較例1及び2では、カーボンブラックを含有した芯鞘複合繊維の割合を、50質量%及び100質量%としたが、L*値が40より小さい値となり、外観評価でもカーボンブラックを含有した芯鞘複合繊維が外観に強い影響を与えることが目視で判断できた。
(実施例4及び5)
カーボンブラック(三菱化学株式会社製、製品名:ファーネスブラックMA100B)を芯部に芯部の質量に対して、濃度40質量%添加し、芯鞘質量比15対85で、繊度が3.3dtex、長さ38mmであるカーボンブラックを含有した芯鞘複合繊維を使用して、表1の割合で不織布を作成し、各評価を行った。L*値、及び外観でも十分な評価が得られ、蓄熱温度についても45℃以上と高い値が得られた。
(比較例3〜5)
カーボンブラック(三菱化学株式会社製、製品名:ファーネスブラックMA100B)を芯部に芯部の質量に対して、濃度20質量%添加し、芯鞘質量比15対85で、繊度が3.3dtex、長さ38mmであるカーボンブラックを含有した芯鞘複合繊維を使用して、表1の割合で不織布を作成し各評価を行った。比較例3ではL*値と染色後の外観では良好な結果が得られたが、蓄熱温度が40℃以下となり、十分な蓄熱性能が得られなかった。比較例4及び5では、L*値が40以下の値となり、外観についても、カーボンブラックを含有した芯鞘複合繊維が目立ち不良となった。
(比較例6及び7)
カーボンブラック(三菱化学株式会社製、製品名:ファーネスブラックMA100B)を繊維全体に2質量%の濃度で添加した繊度3.3dtex、長さ38mmであるアクリル繊維を使用して、表1の割合に従い不織布を作成し各評価を行った。いずれの場合においても、L*値が40より小さい値となり、外観が不良であった。
(Appearance from the outer surface)
The nonwoven fabric was wrapped with two plain woven fabrics using polyester fibers of 84 dtex36 filaments for warp and weft, and the appearance was visually confirmed to determine whether the core-sheath composite fiber was noticeable. When the core-sheath composite fiber could be easily confirmed visually, the appearance was poor, and when it could not be confirmed, the appearance was good.
After dyeing, the carbon black-containing core-sheath composite fiber could be easily confirmed visually. When the influence on the hue was large, the appearance was poor, and when the influence on the hue was small, the appearance was good.
(Examples 1-3, Comparative Examples 1-2)
Carbon black (manufactured by Mitsubishi Chemical Co., Ltd., product name: Furnace Black MA100B) is added to the core at a concentration of 32% by mass with respect to the mass of the core, and a fineness of 3.3 dtex with a core-sheath mass ratio of 15 to 85 A non-woven fabric was prepared at a ratio shown in Table 1 as a core-sheath composite fiber containing a carbon black containing a cut acrylic fiber of 38 mm in length, and each evaluation was performed. In each of Examples 1 to 3, L * values of 40 or more were obtained, and the appearance was also good. A value of 40 ° C. or higher was also obtained for the heat storage temperature.
On the other hand, in Comparative Examples 1 and 2, the ratio of the core-sheath composite fiber containing carbon black was 50% by mass and 100% by mass, but the L * value was smaller than 40, and carbon black was also included in the appearance evaluation. It was visually determined that the core-sheath composite fiber had a strong influence on the appearance.
(Examples 4 and 5)
Carbon black (manufactured by Mitsubishi Chemical Co., Ltd., product name: Furnace Black MA100B) is added to the core at a concentration of 40% by mass with respect to the mass of the core, the core-sheath mass ratio is 15 to 85, and the fineness is 3.3 dtex, Using a core-sheath composite fiber containing carbon black having a length of 38 mm, nonwoven fabrics were prepared at the ratios shown in Table 1 and evaluated. Sufficient evaluation was obtained for the L * value and the appearance, and the heat storage temperature was as high as 45 ° C. or higher.
(Comparative Examples 3-5)
Carbon black (Mitsubishi Chemical Co., Ltd., product name: Furnace Black MA100B) is added to the core at a concentration of 20% by mass with respect to the mass of the core, the core-sheath mass ratio is 15:85, and the fineness is 3.3 dtex, Using core-sheath composite fibers containing carbon black having a length of 38 mm, nonwoven fabrics were prepared at the ratios shown in Table 1 and evaluated. In Comparative Example 3, good results were obtained with the L * value and the appearance after dyeing, but the heat storage temperature was 40 ° C. or less, and sufficient heat storage performance was not obtained. In Comparative Examples 4 and 5, the L * value was 40 or less, and the core-sheath composite fiber containing carbon black was conspicuously poor in appearance.
(Comparative Examples 6 and 7)
Using acrylic fiber having a fineness of 3.3 dtex and a length of 38 mm, in which carbon black (manufactured by Mitsubishi Chemical Co., Ltd., product name: Furnace Black MA100B) is added to the entire fiber at a concentration of 2% by mass, the ratio in Table 1 is used. A nonwoven fabric was prepared and evaluated. In any case, the L * value was less than 40, and the appearance was poor.
Claims (6)
・芯部または鞘部にカーボンブラックを含有する。
・芯部または鞘部のカーボンブラックの濃度が30質量%以上である。
なお、L*値の測定は、染色をしていない布帛を、分光色彩計(株式会社島津製作所製
製品名:CLR−7100F)を使用して測定した。 A heat storage fabric having an L * value of 40 or more, which includes a core-sheath composite fiber that satisfies the following requirements.
・ Contains carbon black in the core or sheath.
-The concentration of carbon black in the core or sheath is 30% by mass or more.
In addition, the measurement of L * value measured the cloth which has not dye | stained the spectral color meter (Shimadzu Corporation make)
Product name: CLR-7100F).
・芯部にカーボンブラックを含有する。
・芯部のカーボンブラックの濃度が30〜60質量%である。
・芯鞘質量比が15対85である。 Containing core-sheath composite fiber satisfies the following requirements, heat storage fabric 請 Motomeko 1 wherein.
・ Contains carbon black in the core.
-The density | concentration of the carbon black of a core part is 30-60 mass%.
-The core-sheath mass ratio is 15:85.
・芯鞘複合繊維を1質量%以上40質量%以下の範囲で含む
・中綿表面のL*値が45以上。 The heat storage nonwoven fabric for batting according to claim 5 which satisfies the following requirements.
-The core-sheath conjugate fiber is contained in the range of 1% by mass or more and 40% by mass or less .
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