JP2008223171A - Knitted fabric having excellent infrared transmission prevention property - Google Patents
Knitted fabric having excellent infrared transmission prevention property Download PDFInfo
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- JP2008223171A JP2008223171A JP2007063526A JP2007063526A JP2008223171A JP 2008223171 A JP2008223171 A JP 2008223171A JP 2007063526 A JP2007063526 A JP 2007063526A JP 2007063526 A JP2007063526 A JP 2007063526A JP 2008223171 A JP2008223171 A JP 2008223171A
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本発明は、赤外線による透視撮影を防ぎ、安心して着用できるインナーウエア、スポーツウエア用編地、およびこれを用いたインナーウエア、スポーツウエアに関する。 The present invention relates to an innerwear that can be worn with peace of mind by preventing fluoroscopic imaging using infrared rays, a knitted fabric for sportswear, an innerwear using the same, and a sportswear.
近年、ビデオカメラに特殊なフィルターを装着することにより、赤外線による透視撮影が可能になることを利用し、女性の裸体を盗撮する等の犯罪行為が行われることが多々あり、社会問題となっている。特に水着、スケートウエア、レオタード、など素肌に直接接触し、しかも体に密着するウエアにおいて被害にあうケースが多く、この犯罪行為の防衛策として赤外線を遮蔽する布帛の開発が必要であり、この目的で種々の繊維材料や衣服が検討されている。 In recent years, there have been many criminal acts such as voyeurizing women's nudes by using the fact that a special filter can be attached to a video camera to enable infrared radiography. Yes. In particular, there are many cases in which clothes that are in direct contact with the skin, such as swimsuits, skate wear, and leotards, and that are in close contact with the body, are damaged. Various fiber materials and clothing are being studied.
具体的には、特許文献１には赤外線吸収特性を有する素材を使用した衣服が、特許文献２には赤外線吸収能または赤外線反射能を有する部分を偏在させてなる繊維材料が開示されている。しかしながら、特許文献１で開示の技術では効果を十分に出す為には繊維素材を高密度かつ高付着量にする必要があり、結果としてストレッチ性、風合いを阻害するという問題があり、また、特許文献２で開示の技術では風合いは改善されるが有効成分が偏在していることにより、赤外線遮蔽性は不十分であるという問題があった。
さらに特許文献３には、金属、炭化物等の薄膜を布帛面に形成させる技術が開示されているが金属、炭化物等による着色が起こり、外観が損なわれ、風合い、ストレッチ性も阻害されるという問題があった。また、いずれの文献に開示された技術も可視光や紫外線に対する透過は考慮されておらず、可視光での透けや紫外線で皮膚へのダメージが生じるという問題がある。又、従来特許の素材は赤外線吸収特性はあるものの、色相がダーク調になりファッション性に欠ける為に、下着用又は裏当て用途に限定される場合が多い。
Specifically, Patent Document 1 discloses a garment using a material having infrared absorption characteristics, and Patent Document 2 discloses a fiber material in which portions having infrared absorption ability or infrared reflection ability are unevenly distributed. However, in the technique disclosed in Patent Document 1, it is necessary to make the fiber material a high density and a high adhesion amount in order to obtain a sufficient effect. As a result, there is a problem that the stretch property and the texture are hindered. In the technique disclosed in Reference 2, the texture is improved, but there is a problem that the infrared shielding property is insufficient due to the uneven distribution of active ingredients.
Furthermore, Patent Document 3 discloses a technique for forming a thin film of metal, carbide or the like on the fabric surface, but coloring with metal, carbide, etc. occurs, the appearance is impaired, and the texture and stretchability are also impaired. was there. In addition, any of the techniques disclosed in any of the documents does not consider transmission with respect to visible light or ultraviolet light, and there is a problem that damage to the skin is caused by transmission with visible light or ultraviolet light. In addition, although the materials of the conventional patents have infrared absorption characteristics, they are often limited to underwear or backing applications because the hue is dark and lacks fashionability.
本発明は、上記の従来技術の問題点を解決し、ストレッチ性、風合いを損なわずに、高い赤外線遮蔽性を有し、かつ色彩性豊かな編地を提供することにある。さらに、可視光、紫外線の透過も防ぎ、透けや皮膚へのダメージのない編地を提供することにある。これにより着用者が安心して着用でき、しかも運動の妨げにならないウエアが提供できる。 An object of the present invention is to solve the above-mentioned problems of the prior art and provide a knitted fabric having high infrared shielding properties and rich in color without impairing stretchability and texture. Further, another object of the present invention is to provide a knitted fabric that prevents visible light and ultraviolet light from being transmitted and has no see-through and damage to the skin. As a result, the wearer can wear it without anxiety, and wear that does not interfere with the exercise can be provided.
本発明者らは、上記課題に鑑み、透視撮影を防ぐ赤外線波長領域についてまず検討を行った。その結果、透視撮影を防ぐには赤外線の波長領域の中でも特に赤外線撮影時に使用される波長７００〜９００ｎｍでの赤外線を透過させないことが必要であることをフィルターをつけたビデオでの実験により確かめた。この領域の赤外線遮蔽性を高めるには無機酸化物微粒子を含有する繊維を用い、かつ赤外線吸収剤の作用を加えることが有効であることを見出し、発明を完成するに至った。 In view of the above problems, the present inventors first examined an infrared wavelength region that prevents fluoroscopic imaging. As a result, in order to prevent fluoroscopic imaging, it was confirmed by experiments with a video with a filter that it is necessary not to transmit infrared rays at a wavelength of 700 to 900 nm used in infrared imaging, particularly in the infrared wavelength region. . In order to improve the infrared shielding property in this region, it has been found that it is effective to use fibers containing inorganic oxide fine particles and to add an action of an infrared absorber, and the present invention has been completed.
すなわち、本願で特許請求される発明は以下のとおりである。
（１）無機酸化物微粒子の含有量が３〜２０重量％の芯部と、無機酸化物微粒子の含有量が２重量％以下の鞘部を有する芯鞘型合成繊維を４０重量％以上含む編地であって、経緯の編み密度の積が５６００〜１４０００／（２．５４ｃｍ）2 であり、赤外線吸収剤０．１〜２重量％を均一に付着させてなる赤外線透過防止性に優れた編地。
（２）赤外線吸収剤がアントラキノン系、インジゴ系、ベンゾキノン系、ナフトキノン系もしくはフタルシアニン系から選ばれる一種以上であり、バインダーを使用しないことを特徴とする上記（１）に記載の編地。
（３）赤外線吸収剤がアントラキノン系の分散染料または建染染料であることを特徴とする上記（２）に記載の編地。
（４）７００〜９００ｎｍにおける赤外線平均透過率が１０％以下である上記（１）〜（３）のいずれかに記載の編地。
（５）経または緯方向のストレッチ性が８０％以上である上記（１）〜（４）のいずれかに記載の編地。
（６）ポリウレタン繊維を１５〜４０重量％含むトリコット編地である上記（１）〜（５）のいずれかに記載の編地。
（７）可視光での防透け性が８以下である上記（１）〜（６）のいずれかに記載の編地。
（８）上記（１）〜（７）のいずれかに記載の編地が少なくとも一部に用いられていることを特徴とするインナーウエアもしくはスポーツウエア。
（９）アントラキノン系、インジゴ系、ベンゾキノン系、ナフトキノン系もしくはフタルシアニン系から選ばれる一種以上の赤外線吸収剤を、染料に混合して染色することにより編地に付着させることを特徴とする上記（１）記載の編地の製造方法。
That is, the invention claimed in the present application is as follows.
(1) A knitting containing at least 40% by weight of a core-sheath type synthetic fiber having a core part with a content of inorganic oxide fine particles of 3 to 20% by weight and a sheath part with a content of inorganic oxide fine particles of 2% by weight or less. A knitted fabric excellent in infrared ray transmission preventing property, wherein the product of the knitting density of the background is 5600-14000 / (2.54 cm) 2 and 0.1-2% by weight of an infrared absorber is uniformly attached. Earth.
(2) The knitted fabric according to (1) above, wherein the infrared absorber is one or more selected from anthraquinone, indigo, benzoquinone, naphthoquinone, or phthalocyanine, and no binder is used.
(3) The knitted fabric according to (2) above, wherein the infrared absorber is an anthraquinone-based disperse dye or vat dye.
(4) The knitted fabric according to any one of (1) to (3), wherein an infrared average transmittance at 700 to 900 nm is 10% or less.
(5) The knitted fabric according to any one of (1) to (4), wherein the warp or weft direction stretchability is 80% or more.
(6) The knitted fabric according to any one of (1) to (5) above, which is a tricot knitted fabric containing 15 to 40% by weight of polyurethane fibers.
(7) The knitted fabric according to any one of (1) to (6), wherein the see-through property with visible light is 8 or less.
(8) An innerwear or sportswear in which the knitted fabric according to any one of (1) to (7) is used at least in part.
(9) One or more infrared absorbers selected from anthraquinone series, indigo series, benzoquinone series, naphthoquinone series, or phthalocyanine series are mixed with a dye and dyed to adhere to the knitted fabric (above) 1) The manufacturing method of the knitted fabric of description.
本発明の編地は高濃度の無機酸化物微粒子を芯部に含んだ芯鞘型合成繊維を４０重量％以上含み、かつ、特定の編み密度である編地に通常の染料以外に赤外線吸収剤０．１〜２重量％を均一に付着させているために、任意の色相にて赤外線の透過、特に赤外線透過撮影時に問題となる波長７００〜９００ｎｍの赤外線の透過をストレッチ性や風合いを阻害せずに防ぐことができる。また、高濃度の無機酸化物微粒子を芯部に含んだ芯鞘型合成繊維を４０重量％以上含んでいるために、可視光、紫外線の反射が大きく、透けや皮膚への紫外線によるダメージを防ぐことが可能となる。 The knitted fabric of the present invention contains 40% by weight or more of a core-sheath type synthetic fiber containing high-concentration inorganic oxide fine particles in the core, and has a specific knitting density. Since 0.1 to 2% by weight is uniformly attached, it inhibits stretchability and texture by transmitting infrared rays in an arbitrary hue, especially transmission of infrared rays having a wavelength of 700 to 900 nm, which is a problem in infrared transmission photography. Can prevent without. In addition, since it contains 40% by weight or more of the core-sheath type synthetic fiber containing high-concentration inorganic oxide fine particles in the core part, the reflection of visible light and ultraviolet rays is large, preventing see-through and damage to the skin by ultraviolet rays. It becomes possible.
以下、本発明を詳細に説明する。
本発明の編地は、無機酸化物微粒子の含有量が３〜２０重量％の芯部と、無機酸化物微粒子の含有量が２重量％以下の鞘部を有する芯鞘型合成繊維を４０重量％以上含んでいることを特徴としている。
該無機酸化物微粒子を含有する合成繊維は、例えば、ポリエステル系、ポリアミド系、アクリル系、ポリプロピレン系、ポリウレタン系等の合成繊維を用いることができるが、ポリエステル系、ポリアミド系、ポリプロピレン系等の溶融紡糸によって製造される合成繊維が製造工程上好ましい。
Hereinafter, the present invention will be described in detail.
The knitted fabric of the present invention has 40 wt. Of a core-sheath type synthetic fiber having a core portion with a content of inorganic oxide fine particles of 3 to 20% by weight and a sheath portion with a content of inorganic oxide fine particles of 2% by weight or less. It is characterized by containing more than%.
As the synthetic fiber containing the inorganic oxide fine particles, for example, polyester-based, polyamide-based, acrylic-based, polypropylene-based, and polyurethane-based synthetic fibers can be used. Synthetic fibers produced by spinning are preferred in the production process.
含有する無機酸化物微粒子は、原糸製造が可能であれば、その種類は特に限定されないが、例えば、酸化チタン、酸化亜鉛、酸化マグネシウム、炭酸カルシウム、硫酸バリウム等を用いることができる。これらの無機酸化物微粒子は、単独もしくは２種以上を併用して用いることができる。
使用される無機酸化物微粒子の平均粒径は、２ミクロン以下であることが好ましい。２ミクロン以上の粗大粒子になると、紡糸時の糸切れにつながり好ましくない。より好ましくは１ミクロン以下、特に好ましくは０．５ミクロン以下である。
本発明の編地に含まれる芯鞘型合成繊維は、芯部の無機酸化物微粒子の含有量が３〜２０重量％であることが必要である。含有量が３重量％未満では紫外線、特にＡ波の遮蔽性が劣るものとなり、可視光線、赤外線の遮蔽性も劣る。２０重量％を越えると微粒子の均一な分散が困難となり、紡糸時の糸切れなどの問題が生じる。好ましい含有量は５〜１５重量％の範囲である。
The kind of inorganic oxide fine particles to be contained is not particularly limited as long as the raw yarn can be produced. For example, titanium oxide, zinc oxide, magnesium oxide, calcium carbonate, barium sulfate and the like can be used. These inorganic oxide fine particles can be used alone or in combination of two or more.
The average particle size of the inorganic oxide fine particles used is preferably 2 microns or less. Coarse particles of 2 microns or more are undesirable because they lead to yarn breakage during spinning. More preferably, it is 1 micron or less, and particularly preferably 0.5 micron or less.
The core-sheath type synthetic fiber contained in the knitted fabric of the present invention needs to contain 3 to 20% by weight of the inorganic oxide fine particles in the core part. When the content is less than 3% by weight, the shielding property of ultraviolet rays, particularly A waves, is inferior, and the shielding properties of visible light and infrared rays are also inferior. If it exceeds 20% by weight, uniform dispersion of the fine particles becomes difficult, and problems such as yarn breakage during spinning occur. The preferred content is in the range of 5 to 15% by weight.
鞘部の無機酸化物微粒子の含有量は２重量％以下であることを特徴としている。鞘部の含有量を芯部に対比して小さくすることで赤外線、可視光線、紫外線の反射特性に優れ、かつ、糸強度を保持し、加工性の高い糸となる。鞘部の無機酸化物微粒子の含有量が２重量％を超えると糸強度が小さくなり、糸加工や編成などの加工時に無機酸化物微粒子がガイド等を削るという問題も生じやすく好ましくない。
芯部と鞘部は同一のポリマー組成であっても、異なるポリマー組成であってもよい。例えばポリエステル芯鞘型合成繊維の場合には、鞘部のみが共重合ポリエステルであってもよい。また、ポリアミド芯鞘型合成繊維の場合には、芯部がナイロン６６で鞘部がナイロン６であってもよい。
The content of the inorganic oxide fine particles in the sheath is 2% by weight or less. By making the content of the sheath part smaller than that of the core part, it is excellent in the reflection characteristics of infrared rays, visible rays, and ultraviolet rays, and maintains a yarn strength and becomes a highly workable yarn. When the content of the inorganic oxide fine particles in the sheath exceeds 2% by weight, the yarn strength is decreased, and the problem that the inorganic oxide fine particles scrape the guides and the like during processing such as yarn processing and knitting is not preferable.
The core part and the sheath part may have the same polymer composition or different polymer compositions. For example, in the case of a polyester core-sheath type synthetic fiber, only the sheath part may be a copolyester. In the case of a polyamide core-sheath type synthetic fiber, the core may be nylon 66 and the sheath may be nylon 6.
また、芯部と鞘部は同心円状に複合されていてもよいし、偏心して複合されていてもよい。芯成分の鞘成分に対する重量比は１／４〜４／１の範囲が好ましい。芯成分の重量比が１／４未満であると紫外線遮蔽効果が劣るものとなり、４／１を越えると紡糸時に芯成分がフィラメントの表面に露出し、安定した芯鞘形状の形成が難しくなる。好ましい芯鞘比は１／２〜２／１であり、さらに好ましくは１／１である。
鞘芯型合成繊維の断面形状は特に限定されるものでなく、丸形、三角、Ｙ型、Ｌ型、Ｗ型、扁平、ドッグボーン型、多葉型等何れの形状であっても良い。また、繊維の形態は長繊維でも短繊維でも良く、長さ方向に均一なものや太細のあるものでもよい。また、仮撚等の捲縮加工、流体噴射加工、撚糸等の加工が施されたものでもよい。
本発明で使用する合成繊維の繊度は、特に限定されるものではないが、ウエアとして用いることを考慮するとトータルデシテックスは２０〜２００ｄｔｅｘ、単糸デニールは０．５〜１０ｄｔｅｘ程度が好ましい。
特に過酷な使用条件となるスポーツウエア用編地の場合には、１〜５ｄｔｅｘがより好ましく、柔らかな肌触りや風合いを重視するインナーウエア用編地の場合には、０．５〜３ｄｔｅｘがより好ましい。
Moreover, the core part and the sheath part may be combined concentrically, or may be combined eccentrically. The weight ratio of the core component to the sheath component is preferably in the range of 1/4 to 4/1. When the weight ratio of the core component is less than 1/4, the ultraviolet shielding effect is inferior, and when it exceeds 4/1, the core component is exposed on the surface of the filament during spinning, making it difficult to form a stable core-sheath shape. A preferred core / sheath ratio is 1/2 to 2/1, more preferably 1/1.
The cross-sectional shape of the sheath-core type synthetic fiber is not particularly limited, and may be any shape such as a round shape, a triangular shape, a Y shape, an L shape, a W shape, a flat shape, a dogbone shape, and a multileaf shape. Further, the form of the fibers may be long fibers or short fibers, and may be uniform or thick in the length direction. Further, it may be subjected to crimping processing such as false twisting, fluid injection processing, twisting yarn processing and the like.
The fineness of the synthetic fiber used in the present invention is not particularly limited, but considering that it is used as a wear, the total decitex is preferably 20 to 200 dtex, and the single yarn denier is preferably about 0.5 to 10 dtex.
1 to 5 dtex is more preferable for sportswear knitted fabrics that are particularly severe use conditions, and 0.5 to 3 dtex is more preferable for innerwear knitted fabrics that emphasize soft touch and texture. .
本発明の編地赤外線透過防止性に優れた編地において、該鞘芯型合成繊維の混率は４０重量％以上であることが必要である。混率を４０重量％以上とすることで本発明の目的である可視光線、紫外線の反射が大きくなり、透けや皮膚への紫外線によるダメージを防ぐことが可能となる。混用する他の繊維には、任意の繊維を用いることができるが、ポリエステル、ポリアミド、ポリウレタン、アクリル等の合成繊維や、綿、麻、ウール等の天然繊維等が好ましく用いられる。鞘芯型合成繊維の混率が４０％未満では本発明の目的である赤外線、可視光線、紫外線の反射が十分でなく、透けや皮膚への紫外線によるダメージも大きくなってしまうので好ましくない。
混用の方法としては、混紡、エアー混繊、交撚、伸度差仮撚等の複合仮撚などの手段で糸複合で混用したり、交編により混用することができる。
交編の場合には、１本交互や２本交互等で配置したり、２層、３層等で配置する方法等で混用することができるが１本交互や２本交互等の如く周期的に配置されているか、１層全面に配置されていることが好ましい。
In the knitted fabric excellent in the infrared transmission preventing property of the knitted fabric of the present invention, the mixing ratio of the sheath-core type synthetic fiber needs to be 40% by weight or more. By setting the mixing ratio to 40% by weight or more, the reflection of visible light and ultraviolet light, which is the object of the present invention, is increased, and it is possible to prevent seepage and damage to the skin due to ultraviolet light. Arbitrary fibers can be used as the other fibers to be mixed, but synthetic fibers such as polyester, polyamide, polyurethane, and acrylic, and natural fibers such as cotton, hemp, and wool are preferably used. When the mixing ratio of the sheath-core type synthetic fiber is less than 40%, the reflection of infrared rays, visible rays, and ultraviolet rays, which are the objects of the present invention, is not sufficient, and the penetration and damage to the skin due to ultraviolet rays are increased.
As a method of mixing, it can be mixed with yarn composites by means of composite false twisting such as mixed spinning, air fiber mixing, cross twisting, elongation difference false twisting, etc., or can be mixed by cross knitting.
In the case of co-knitting, it can be arranged by alternating one or two alternates, or by arranging by two layers, three layers, etc., but it is periodic such as one alternate or two alternates. It is preferable to arrange | position to 1 layer, or to arrange | position to 1 layer whole surface.
本発明の編地は、天竺編、フライス、スムース、ポンチローマ等の緯編や、トリコットハーフ、アトラス等の経編などの任意の組織を用いることができるが、本発明の目的、特に赤外線の透過を防ぐためには、経緯の編み密度の積が５６００〜１４０００／（２．５４ｃｍ）2 にする必要がある。ここで、経緯の編み密度とは、編地の単位面積（２．５４ｃｍ四方）あたりのコース数およびウエル数の積であり、経緯の編み密度の積が５６００未満では赤外線の透過防止性能に劣り、本発明の目的を達成するのは困難である。経緯の編み密度の積が１４０００を超える場合は密度が大きすぎるために風合いが硬く、着用快適感が損なわれるという問題がある。経緯の編み密度の積が５６００〜１４０００／（２．５４ｃｍ）2 にするには２８ＧＧ以上のハイゲージの編み機で編成するのが好ましく、ポリウレタン等の弾性繊維と混用することは編み密度が大きくなりしかもストレッチ性が大きくなるため好ましい。ポリウレタン繊維を１５〜４０重量％含むトリコット編地とするのが極めて好ましい。 As the knitted fabric of the present invention, an arbitrary structure such as a weft knitting such as tengu knitting, milling, smooth, and ponchiroma, and warp knitting such as tricot half and atlas can be used. In order to prevent transmission, the product of the knitting density of the background needs to be 5600-14000 / (2.54 cm) 2 . Here, the knitting density of the background is the product of the number of courses and the number of wells per unit area (2.54 cm square) of the knitted fabric, and if the product of the knitting density of the background is less than 5600, the infrared transmission performance is inferior. It is difficult to achieve the object of the present invention. When the product of the knitting density of the background exceeds 14000, the density is too large, so that the texture is hard and the wearing comfort is impaired. In order to make the product of the knitting density of the background 5600 to 14000 / (2.54 cm) 2 , it is preferable to knit with a high gauge knitting machine of 28 GG or more. Mixing with elastic fibers such as polyurethane may increase the knitting density. Since stretch property becomes large, it is preferable. A tricot knitted fabric containing 15 to 40% by weight of polyurethane fibers is very preferable.
本発明の編地は、赤外線吸収剤を編地に０．１〜２重量％となるように均一に付着させてなることを特徴としている。赤外線吸収剤としては、アントラキノン系、インジゴ系、ベンゾキノン系、ナフトキノン系もしくはフタルシアニン系等の分散染料または建染染料が好適に用いられ、特にアントラキノン系の赤外線吸収剤は赤外線透過撮影時に問題となる波長７００〜９００ｎｍの赤外線の透過を遮蔽する効果に極めて優れていて好ましい。従来用いられるジイモニウム系等の赤外線吸収剤は、本発明の合成繊維との親和性がないため本発明で用いられる赤外線吸収剤として好ましくない。また、アントラキノン系の赤外線吸収剤の中でも繊維との親和性に優れる分散染料または建染染料であれば、バインダーを使用せずに編地に付着させることができるため、特に好ましい。 The knitted fabric of the present invention is characterized in that the infrared absorbent is uniformly attached to the knitted fabric so as to be 0.1 to 2% by weight. As the infrared absorber, an anthraquinone-based, indigo-based, benzoquinone-based, naphthoquinone-based, or phthalocyanine-based disperse dye or vat dye is preferably used. It is extremely excellent in the effect of shielding transmission of infrared rays having a wavelength of 700 to 900 nm, which is preferable. Conventionally used infrared absorbers such as diimonium are not preferred as the infrared absorbers used in the present invention because they have no affinity with the synthetic fibers of the present invention. Further, among the anthraquinone-based infrared absorbers, disperse dyes or vat dyes having excellent affinity with fibers are particularly preferable because they can be attached to a knitted fabric without using a binder.
本発明で用いられる具体的な赤外線吸収剤として、例えば、Ｄｅｅｐｅｒ ＮＲ（日本化薬製、アントラキノン系）は非常に赤外線吸収能が大きいがやや耐光堅牢度に劣り、Ｔｕｒｑ Ｂｌｕｅ ＧＬＳ（日本化薬製、アントラキノン系）はＤｅｅｐｅｒ ＮＲに対比して赤外線吸収能はやや劣るが耐光堅牢度は良好である。これらの染料を併用することにより、淡色でも耐光性能を維持しながら赤外線吸収能を確保することが出来る。
これらの赤外線吸収剤は、編地の染色工程で他の染料と併用して用いる方法や編地のプリント剤に併用して用いることで編地に付与することが可能であり、いずれの方法で用いる場合でも、任意の色相を、洗濯耐久性に極めて優れた赤外線遮蔽効果を付与することが可能である。特にバインダーを使用せずに付着させれば、風合いがソフトでストレッチ性が阻害されない編地となるため好ましい。
As a specific infrared absorber used in the present invention, for example, Deeper NR (manufactured by Nippon Kayaku Co., Ltd., anthraquinone) has a very large infrared absorbing ability, but is slightly inferior in light fastness, and Turq Blue GLS (manufactured by Nippon Kayaku Co., Ltd.). , Anthraquinone) is slightly inferior in infrared absorption ability to Deeper NR, but has good light fastness. By using these dyes together, it is possible to ensure the infrared absorption ability while maintaining the light resistance even in light colors.
These infrared absorbers can be applied to the knitted fabric by using in combination with other dyes in the dyeing process of the knitted fabric or in combination with the printing agent of the knitted fabric. Even when it is used, it is possible to impart an infrared shielding effect that is extremely excellent in washing durability to any hue. In particular, it is preferable to attach without using a binder because the knitted fabric is soft and the stretchability is not hindered.
赤外線吸収剤の付着量は０．１〜２重量％が好ましく、０．２〜１重量％が特に好ましい。０．１重量％未満では赤外線の透過防止性能に劣り、２重量％を超えると、赤外線吸収特性は飛躍的に向上するが、色相が制限され、所望の色出しが困難になる。
赤外線吸収剤は、編地に均一に付着させることが赤外線透過防止性能の観点から好ましく、付着むらがあると赤外線透過性能に劣り好ましくない。本発明は通常の染色あるいはプリントの処方に特定の赤外線吸収剤を加えるだけで編地に均一に付着させることができるため従来方法に比べて優れた効果を発現できる。また加工工程、温度等も通常の条件でよい。ただし、本発明で用いる赤外線吸収剤の中には着色しているものもあるため、所望の色にするには他の通常の染料と配合して色目を調整するなどの工夫が必要である。編地の裏全面にプリントし、表は自由な色使いにすることも可能である。
本発明によって、赤外線の遮蔽性に優れ、特に波長７００〜９００ｎｍの赤外線の平均透過率が１０％以下である編地が好適に得られる。該平均透過率が６％以下であれば特に好ましい。
The adhesion amount of the infrared absorber is preferably 0.1 to 2% by weight, particularly preferably 0.2 to 1% by weight. If it is less than 0.1% by weight, the infrared ray transmission preventing performance is poor, and if it exceeds 2% by weight, the infrared absorption characteristics are remarkably improved, but the hue is limited and it becomes difficult to obtain a desired color.
The infrared absorbent is preferably uniformly attached to the knitted fabric from the viewpoint of infrared transmission preventing performance, and if there is uneven adhesion, the infrared transmission performance is inferior. Since the present invention can be uniformly adhered to the knitted fabric simply by adding a specific infrared absorber to the usual dyeing or printing prescription, it can exhibit an excellent effect as compared with the conventional method. Also, the processing steps, temperature, etc. may be normal conditions. However, since some infrared absorbers used in the present invention are colored, it is necessary to devise adjustment of the color by blending with other ordinary dyes to obtain a desired color. It is possible to print on the entire back of the knitted fabric and use any color on the front.
According to the present invention, a knitted fabric having excellent infrared shielding properties, and particularly having an average infrared transmittance of 700 to 900 nm of 10% or less can be suitably obtained. The average transmittance is particularly preferably 6% or less.
本発明の編地は、先に述べたように無機酸化物微粒子の含有量が３〜２０重量％の芯部と、無機酸化物微粒子の含有量が２重量％以下の鞘部を有する芯鞘型合成繊維を４０重量％以上含む編地であるため、赤外線だけでなく紫外線の反射特性にも優れる。紫外線の反射特性は、編地のＵＰＦ値で計測することが可能であり、ＵＰＦ値が２０以上、より好ましくはＵＰＦ値が３０以上、さらに好ましくは５０以上であることが好ましい。ＵＰＦ値が２０以上であることにより、紫外線から皮膚を保護し、ダメージを防ぐ編地となる。
さらに本発明の編地は無機酸化物微粒子の含有量が３〜２０重量％の芯部と、無機酸化物微粒子の含有量が２重量％以下の鞘部を有する芯鞘型合成繊維を４０重量％以上含む編地であることにより、赤外線だけでなく可視光線の反射特性にも優れる。可視光線の反射特性は、色によっても異なるが、防透け性が８以下であることが好ましい。ここでいう防透け性は、編地の裏に白板を敷いた場合と黒板を敷いた場合との明度の差（ΔＬ）で表される。
The knitted fabric of the present invention has a core sheath having a core portion in which the content of inorganic oxide fine particles is 3 to 20% by weight and a sheath portion in which the content of inorganic oxide fine particles is 2% by weight or less as described above. Since it is a knitted fabric containing 40% by weight or more of synthetic fiber, it is excellent not only in infrared rays but also in ultraviolet reflection characteristics. The reflection property of ultraviolet rays can be measured by the UPF value of the knitted fabric. The UPF value is 20 or more, more preferably the UPF value is 30 or more, and further preferably 50 or more. When the UPF value is 20 or more, the knitted fabric protects the skin from ultraviolet rays and prevents damage.
Furthermore, the knitted fabric of the present invention has a core-sheath type synthetic fiber having a core part with a content of inorganic oxide fine particles of 3 to 20% by weight and a sheath part with a content of inorganic oxide fine particles of 2% by weight or less of 40% by weight. % Of the knitted fabric including at least% is excellent not only in infrared rays but also in visible light reflection characteristics. Although the visible light reflection characteristics vary depending on the color, the see-through property is preferably 8 or less. Here, the see-through property is expressed by a difference in lightness (ΔL) between when a white board is laid on the back of the knitted fabric and when a blackboard is laid.
本発明の編地は、スポーツウエアやインナーウエアに用いるため、経または緯方向のストレッチ性が８０％以上であることが好ましい。ここでいうストレッチ性は、２．５ｃｍ幅の試料をつかみ間隔１０ｃｍで２２．５Ｎの荷重で引張った場合の伸び率（％）をいう。ストレッチ性を高める方法としては、スパンデックス繊維、ポリトリメチレンテレフタレート繊維等の伸縮力に優れた繊維を混用する方法、スムース、フライス、天竺など伸度の比較的大きな編組織にする方法などが好適に用いられる。 Since the knitted fabric of the present invention is used for sportswear or innerwear, the warp or weft stretchability is preferably 80% or more. The stretch property here refers to the elongation (%) when a 2.5 cm wide sample is gripped and pulled with a load of 22.5 N at an interval of 10 cm. As a method for enhancing the stretchability, a method of using a fiber having excellent elasticity such as spandex fiber or polytrimethylene terephthalate fiber, a method of forming a knitted structure having a relatively high elongation such as smooth, milling, and tenshi is suitable. Used.
本発明を実施例などにより更に具体的に説明するが、本発明はこれら実施例などにより何ら限定されるものではない。
なお、実施例などにおける布帛の性量、物性は下記の方法を用いて測定、評価した。
（１）赤外線平均透過率
分光光度計を用い７００〜９００ｎｍにおける透過率を５ｎｍごとに測定し、平均値を求める。
（２）ストレッチ性
２．５ｃｍ幅、１５ｃｍ長さの試料をつかみ間隔１０ｃｍで２２．５Ｎの荷重でテンシロンを用いて引張った場合の伸び率（％）を測定する。
The present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.
In addition, the physical quantity and physical property of the fabric in an Example etc. were measured and evaluated using the following method.
(1) Infrared average transmittance Using a spectrophotometer, the transmittance at 700 to 900 nm is measured every 5 nm, and the average value is obtained.
(2) Stretchability Elongation rate (%) is measured when a sample having a width of 2.5 cm and a length of 15 cm is gripped and pulled using Tensilon at a load of 22.5 N at an interval of 10 cm.
（３）防透け性
測色計を用いて編地の裏に白板を置いた場合と黒板を置いた場合との明度の差（△Ｌ）を測定する。数値が８以下であれば防透け性の効果を有する。
（４）紫外線遮蔽性
オーストラリアニュージーランド規格（ＡＳ／ＮＺＳ；４３９９：１９９６）に従い、２９０〜４００ｎｍの紫外線透過率に所定のダメージ係数を考慮し、ＵＰＦ値を算出する。ＵＰＦの数値が大きいほど紫外線遮蔽性能が大きく、２０以上で効果を有し、３０以上で効果が高く、５０以上で著しく効果が高い。
（５）風合い
編地の手触りにて以下の評価基準で評価した。
○：風合いが柔らかく良好
△：風合いがやや硬い
×：風合いが硬く不良
(3) Permeability The difference in brightness (ΔL) between when a white board is placed on the back of the knitted fabric and when a blackboard is placed is measured using a colorimeter. If the numerical value is 8 or less, it has an effect of see-through.
(4) Ultraviolet shielding properties According to the Australian New Zealand standard (AS / NZS; 4399: 1996), the UPF value is calculated in consideration of a predetermined damage coefficient in the ultraviolet transmittance of 290 to 400 nm. The larger the numerical value of UPF, the greater the ultraviolet shielding performance, which is effective at 20 or more, is highly effective at 30 or more, and is extremely effective at 50 or more.
(5) Texture It evaluated with the following evaluation criteria by the touch of the knitted fabric.
○: The texture is soft and good △: The texture is slightly hard ×: The texture is hard and defective
［実施例１］
酸化チタンを１０重量％含有する芯部と、酸化チタンを０．０２重量％含有する鞘部からなり、芯鞘重量比率が１／１である同心円状のポリエステル芯鞘型合成繊維（５６ｄｔｅｘ、３６フィラメント）をフロント筬に、４４ｄｔｅｘのスパンデックス繊維をバック筬に入れ、トリコットハーフ編地を得た。拡布状の連続精練機で精練した後、１９０℃でプレセットし、染色は次の処方で１３０℃で３０分処理した。
ＫＰ ＤＥＥＰＥＲ ＮＲ（日本化薬製、アントラキノン系） ０．５％ｏｗｆ
ニッカサンソルト ＲＭ−３４０ ０．５ｇ／ｌ
酢酸８０％ ０．５ｃｃ／ｌ
引き続き、常法に基づいて還元ソーピング後、水洗し、脱水した後、１７０℃にてファイナルセットした。編地の密度は１１６コース／２．５４ｃｍ、９０ウエル／２．５４ｃｍ（以下「１１６Ｃ９０Ｗ」の如く記載）であった。機能評価結果を表１に示す。
[Example 1]
Concentric polyester core-sheath type synthetic fiber (56 dtex, 36) having a core part containing 10% by weight of titanium oxide and a sheath part containing 0.02% by weight of titanium oxide and having a core-sheath weight ratio of 1/1. Filament) was put on the front heel and 44 dtex spandex fiber was put on the back heel to obtain a tricot half knitted fabric. After scouring with a spread-type continuous scourer, it was preset at 190 ° C., and dyeing was carried out at 130 ° C. for 30 minutes according to the following formulation.
KP DEEPER NR (Nippon Kayaku, anthraquinone) 0.5% owf
Nikka Sun Salt RM-340 0.5g / l
Acetic acid 80% 0.5cc / l
Subsequently, after reducing soaping according to a conventional method, washing with water, dehydration, and final setting at 170 ° C. The density of the knitted fabric was 116 courses / 2.54 cm, 90 wells / 2.54 cm (hereinafter referred to as “116C90W”). The function evaluation results are shown in Table 1.
［実施例２］
染色処方を次の処方とした他は実施例１と同様の方法で加工を行った。編地の密度は１１６Ｃ９０Ｗであった。機能評価結果を表１に示す。
ＫＰ ＤＥＥＰＥＲ ＮＲ ０．４％ｏｗｆ
Ｋａｙａｌｏｎ Ｒｏｌｙ Ｔｕｒｑ Ｂｌｕｅ ＧＬ−Ｓ２００
０．１％ｏｗｆ
ニッカサンソルト ＲＭ−３４０ ０．５ｇ／ｌ
酢酸８０％ ０．５ｃｃ／ｌ
[Example 2]
Processing was performed in the same manner as in Example 1 except that the dyeing prescription was changed to the following prescription. The density of the knitted fabric was 116C90W. The function evaluation results are shown in Table 1.
KP DEEPER NR 0.4% owf
Kayalon Roly Turq Blue GL-S200
0.1% owf
Nikka Sun Salt RM-340 0.5g / l
Acetic acid 80% 0.5cc / l
［実施例３］
実施例１の編地を用いて常法に基づいてプリント下生地を作成し、下記の色糊を使用して、通常の方法にて印捺した後、高圧蒸熱機にて、１３０℃で２０分間蒸熱し、水洗し、乾燥した。編地の密度は１１２Ｃ８８Ｗであった。機能評価結果を表１に示す。
ＫＰ ＤＥＥＰＥＲ ＮＲ １部
Ｄｉａｎｉｘ Ｙｅｌｌｏｗ ＵＮ−ＳＥ（ダイスター製） ０．２部
Ｄｉａｎｉｘ Ｃａｒｍｉｎｅ ＵＮ−ＳＥ（ダイスター製） ０．５部
尿素 ２部
メタニトロベンゼンスルホン酸塩 １部
元糊 （アルギン酸ソーダ６０％含有） ７０部
酒石酸にて、ＰＨ３．５〜５．０に調製
水 Ｘ部
合計 １００部
[Example 3]
Using the knitted fabric of Example 1, a printed fabric was prepared based on a conventional method, printed using the following color paste in a normal manner, and then printed at 130 ° C. with a high-pressure steamer at 20 ° C. Steamed for minutes, washed with water and dried. The density of the knitted fabric was 112C88W. The function evaluation results are shown in Table 1.
KP DEEPER NR 1 part Dianix Yellow UN-SE (manufactured by Dystar) 0.2 part Dianix Carmine UN-SE (manufactured by Dyster) 0.5 part Urea 2 parts Metanitrobenzenesulfonate 1 part Original paste (containing 60% sodium alginate) 70 parts Prepared to pH 3.5-5.0 with tartaric acid Water X part 100 parts in total
［実施例４］
酸化チタンを１０重量％含有する芯部と、酸化チタンを０．０２重量％含有する鞘部からなり、芯鞘重量比率が１／１である同心円状のポリエステル芯鞘型合成繊維（５６ｄｔｅｘ、３６フィラメント）と２０ｄｔｅｘのスパンデックス繊維を用いてベア天竺の編地を作成し、実施例１と同様の処方で加工を行った。編地の密度は９０Ｃ６４Ｗであった。機能評価結果を表１に示す。
[Example 4]
Concentric polyester core-sheath type synthetic fiber (56 dtex, 36) having a core part containing 10% by weight of titanium oxide and a sheath part containing 0.02% by weight of titanium oxide and having a core-sheath weight ratio of 1/1. Filament) and 20 dtex spandex fibers were used to prepare a bare tenon knitted fabric, which was processed in the same manner as in Example 1. The density of the knitted fabric was 90C64W. The function evaluation results are shown in Table 1.
［実施例５］
加工処方を次のように変更した他は実施例３と同様に編地を作成した。編地の密度は１１２Ｃ８８Ｗであった。機能評価結果を表１に示す。得られた編地は赤外線透過防止効果に優れるが、用いた赤外線吸収剤に繊維との親和性がなく、付着させるためにバインダーを使用したことにより、得られた編地の風合いが低下した。
Ｋａｙａｓｏｒｂ ＩＲＧ−０２３（日本化薬製、ジイモニウム系赤外線吸収剤）
１部
Ｄｅｘｃｅｌ Ｃｌｅａｒ ３３０８（大日本インキ製、アクリル系バインダー）
２部
尿素 ２部
元糊（アルギン酸ソーダ６０％含有） ７０部
酒石酸にて、ＰＨ３．５〜５．０に調整
水 Ｘ部
合計 １００部
[Example 5]
A knitted fabric was prepared in the same manner as in Example 3 except that the processing recipe was changed as follows. The density of the knitted fabric was 112C88W. The function evaluation results are shown in Table 1. The resulting knitted fabric is excellent in the effect of preventing infrared transmission, but the infrared absorbent used has no affinity for the fiber, and the texture of the obtained knitted fabric was lowered by using a binder for adhesion.
Kayasorb IRG-023 (manufactured by Nippon Kayaku, diimonium-based infrared absorber)
1 part Dexcel Clear 3308 (Dainippon Ink, acrylic binder)
2 parts Urea 2 parts Original paste (containing 60% sodium alginate) 70 parts Adjusted to pH 3.5-5.0 with tartaric acid Water X part Total 100 parts
［比較例１］
染色処方を次の処方とした他は実施例１と同様の方法で加工を行った。編地の密度は１１６Ｃ９０Ｗであった。機能評価結果を表１に示す。
Ｆｏｒｏｎ Ｎａｖｙ Ｓ−２ＧＬ（クラリアント製、アゾ系） ０．５％ｏｗｆ
ニッカノンソルト ＲＭ−３４０ ０．５ｇ／ｌ
酢酸８０％ ０．５ｃｃ／ｌ
［比較例２］
酸化チタンを０．１重量％含有するポリエステル繊維（５６ｄｔｅｘ、３６フィラメント）を用いた他は実施例１と同様の方法で編地を作成した。ただし編地の密度は１１６Ｃ７２Ｗであった。機能評価結果を表１に示す。
[Comparative Example 1]
Processing was performed in the same manner as in Example 1 except that the dyeing prescription was changed to the following prescription. The density of the knitted fabric was 116C90W. The function evaluation results are shown in Table 1.
Foron Navy S-2GL (Clariant, Azo) 0.5% owf
Nikkanon Salt RM-340 0.5g / l
Acetic acid 80% 0.5cc / l
[Comparative Example 2]
A knitted fabric was prepared in the same manner as in Example 1 except that polyester fiber (56 dtex, 36 filaments) containing 0.1% by weight of titanium oxide was used. However, the density of the knitted fabric was 116C72W. The function evaluation results are shown in Table 1.
［比較例３］
実施例４の編地のセット条件を変更し密度を変えたほかは実施例４と同様に編地を仕上げた。編地の密度は７０Ｃ６６Ｗであった。機能評価結果を表１に示す。
［比較例４］
染色処方を次の処方とした他は実施例１と同様の方法で加工を行った。編地の密度は１１６Ｃ９０Ｗであった。機能評価結果を表１に示す。
ＫＰ ＤＥＥＰＥＲ ＮＲ（日本化薬製、アントラキノン系） ０．０５％ｏｗｆ
ニッカサンソルト ＲＭ−３４０ ０．５ｇ／ｌ
酢酸８０％ ０．５ｃｃ／ｌ
[Comparative Example 3]
The knitted fabric was finished in the same manner as in Example 4 except that the setting conditions of the knitted fabric of Example 4 were changed to change the density. The density of the knitted fabric was 70C66W. The function evaluation results are shown in Table 1.
[Comparative Example 4]
Processing was performed in the same manner as in Example 1 except that the dyeing prescription was changed to the following prescription. The density of the knitted fabric was 116C90W. The function evaluation results are shown in Table 1.
KP DEEPER NR (Nippon Kayaku, anthraquinone) 0.05% owf
Nikka Sun Salt RM-340 0.5g / l
Acetic acid 80% 0.5cc / l
本発明の編地は、高濃度の無機酸化物微粒子を芯部に含んだ芯鞘型合成繊維を４０重量％以上含み、かつ、特定の編み密度である編地に通常の染料以外に赤外線吸収剤０．１〜２重量％を均一に付着させているために任意の色相にて赤外線の透過、特に赤外線透過撮影時に問題となる波長７００〜９００ｎｍの赤外線の透過をストレッチ性や風合いを阻害せずに防ぐことができる。また、高濃度の無機酸化物微粒子を芯部に含んだ芯鞘型合成繊維を４０重量％以上含んでいるために、可視光線、紫外線の反射が大きく、透け、皮膚への紫外線によるダメージを防ぐため、インナーウエアやスポーツウエア等に好適に利用できる。 The knitted fabric of the present invention contains 40% by weight or more of a core-sheath type synthetic fiber containing a high concentration of inorganic oxide fine particles in the core, and absorbs infrared rays in addition to ordinary dyes in a knitted fabric having a specific knitting density. Since 0.1 to 2% by weight of the agent is uniformly adhered, it prevents the transmission of infrared rays in any hue, especially the transmission of infrared rays having a wavelength of 700 to 900 nm, which is a problem at the time of infrared transmission photography, to inhibit stretchability and texture. Can prevent without. In addition, since it contains 40% by weight or more of the core-sheath type synthetic fiber containing high-concentration inorganic oxide fine particles in the core part, the reflection of visible light and ultraviolet rays is large, and the skin is prevented from being transparent and damaged by ultraviolet rays. Therefore, it can be suitably used for innerwear and sportswear.
Claims (9)
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| JP2007063526A JP2008223171A (en) | 2007-03-13 | 2007-03-13 | Knitted fabric having excellent infrared transmission prevention property |
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|---|---|---|---|
| JP2007063526A JP2008223171A (en) | 2007-03-13 | 2007-03-13 | Knitted fabric having excellent infrared transmission prevention property |
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| JP2008223171A true JP2008223171A (en) | 2008-09-25 |
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| JP2009203596A (en) * | 2008-01-30 | 2009-09-10 | Komatsu Seiren Co Ltd | Infrared ray-absorbing fabric and method for producing the same |
| JP2011063912A (en) * | 2009-09-18 | 2011-03-31 | Unitika Trading Co Ltd | Warmth-keeping fiber cloth |
| WO2013111661A1 (en) | 2012-01-27 | 2013-08-01 | 株式会社クラレ | Polyester composite fiber with excellent heat-shielding property and coloration |
| CN103266399A (en) * | 2013-06-04 | 2013-08-28 | 无锡红豆居家服饰有限公司 | Comfortable woolen warmth keeping far infrared fitness keeping fabric |
| WO2019091447A1 (en) * | 2017-11-10 | 2019-05-16 | 东丽纤维研究所（中国）有限公司 | High-transparency-resistance core sheath composite fiber and fabric |
| CN111684012A (en) * | 2018-02-15 | 2020-09-18 | 共同印刷株式会社 | Infrared absorbing resin composition, and molded article and fiber comprising same |
| WO2022033412A1 (en) * | 2020-08-10 | 2022-02-17 | 东丽纤维研究所（中国）有限公司 | Multi-layer section composite fiber and fabric thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPWO2019160109A1 (en) * | 2018-02-15 | 2021-01-14 | 共同印刷株式会社 | Infrared absorbent resin composition and molded articles and fibers containing it |
| JP7183200B2 (en) | 2018-02-15 | 2022-12-05 | 共同印刷株式会社 | Infrared absorbing resin composition and molded article and fiber containing the same |
| CN111684012B (en) * | 2018-02-15 | 2023-02-17 | 共同印刷株式会社 | Infrared absorbing resin composition, and molded article and fiber comprising same |
| US11981808B2 (en) | 2018-02-15 | 2024-05-14 | Kyodo Printing Co., Ltd. | Infrared absorbing resin composition, and molded article and fiber containing same |
| WO2022033412A1 (en) * | 2020-08-10 | 2022-02-17 | 东丽纤维研究所（中国）有限公司 | Multi-layer section composite fiber and fabric thereof |
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