JPH05247723A - Conjugate fiber having excellent opacity, heat-shielding property and color-developing property - Google Patents
Conjugate fiber having excellent opacity, heat-shielding property and color-developing propertyInfo
- Publication number
- JPH05247723A JPH05247723A JP4047302A JP4730292A JPH05247723A JP H05247723 A JPH05247723 A JP H05247723A JP 4047302 A JP4047302 A JP 4047302A JP 4730292 A JP4730292 A JP 4730292A JP H05247723 A JPH05247723 A JP H05247723A
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- Japan
- Prior art keywords
- fiber
- polymer layer
- white
- opacity
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Multicomponent Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、優れた不透明性、熱遮
蔽性及び発色性を兼備し、特に衣料用やインテリア用と
して有用な複合繊維に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite fiber which has excellent opacity, heat shielding property and color development property and is particularly useful for clothes and interiors.
【０００２】[0002]
【従来の技術】合成繊維はそのポリマ基質が本来透明で
あることから、そのポリマのみからなる繊維を衣料用や
インテリア用等の布帛に用いた場合には、その下の物が
透けて見えるという欠点をもつ。それ故、一般に、不透
明な無機系や有機系の白色顔料を配合して繊維化してい
る。2. Description of the Related Art Since a polymer matrix of synthetic fibers is originally transparent, when fibers made of only the polymer are used for cloths for clothes or interiors, the objects below can be seen through. It has drawbacks. Therefore, generally, an opaque inorganic or organic white pigment is blended to form a fiber.
【０００３】また、太陽光等による熱を遮蔽する機能が
要求される場合には白色顔料の配合を多くすることも試
みられている。Further, when a function of shielding heat from sunlight or the like is required, it has been attempted to add a large amount of white pigment.
【０００４】しかし、十分な不透明性や熱遮蔽性を得よ
うとすると多量の顔料配合が必要であり、その結果、得
られる繊維はチョーク状の艶消し外観となり、これを染
色した場合に鮮明な色調が得られ難い。また、配合した
高濃度の顔料により、その後の工程通過時に糸条が接触
走行する装置部分に磨耗を生じ易いという問題や、繊維
本来の機械的特性が低下し易いという問題もあった。However, in order to obtain sufficient opacity and heat shielding properties, a large amount of pigment is required, and as a result, the obtained fiber has a chalk-like matte appearance, and when it is dyed, it becomes clear. Color tone is difficult to obtain. In addition, there is also a problem that the blended high-concentration pigment tends to cause abrasion in the device portion where the yarn comes into contact and travels during the subsequent process, and the original mechanical properties of the fiber are likely to deteriorate.
【０００５】また、この不透明化のために、高濃度に顔
料を配合した不透明ポリマ層を芯に顔料配合量の少ない
ポリマ層を鞘にして同心円状芯鞘型複合繊維とする方法
も知られているが、十分な不透明性を得るためには、発
色性を犠牲にして多量の顔料配合が必要であり、発色性
の低下を抑制しつつ不透明化及び熱遮蔽性を図ることは
困難であった。For this opacification, there is also known a method in which an opaque polymer layer containing a pigment in a high concentration is used as a core and a polymer layer containing a small amount of a pigment is used as a sheath to form a concentric core-sheath type composite fiber. However, in order to obtain sufficient opacity, it is necessary to blend a large amount of pigment at the expense of color development, and it was difficult to achieve opacity and heat shielding properties while suppressing deterioration of color development. ..
【０００６】さらにまた、布帛構成の改良により不透明
化を図る方法として、白色布帛の裏側にグレー色の裏布
を配するという方法が特開平３−４５７９１号公報で提
案されているが、この方法は透け防止には有効である
が、グレー色の裏布のために布帛表側の色彩がくすみ易
く、また、白色系以外に染色する場合には適用できない
という問題があった。Further, as a method for making the fabric opaque by improving the structure of the fabric, a method of arranging a gray-colored backing fabric on the back side of a white fabric is proposed in Japanese Patent Laid-Open No. 3-45791. Is effective in preventing sheer, but there is a problem in that the color on the front side of the fabric tends to be dull due to the gray backing, and it cannot be applied to dyeing other than white.
【０００７】[0007]
【発明が解決しようとする課題】そこで、本発明は、上
記のような従来技術の欠点を解消し、不透明性及び熱遮
蔽性に優れるとともに、染色した際の発色性の低下が少
なく色調にも優れた複合繊維の提供を主な目的とする。Therefore, the present invention solves the above-mentioned drawbacks of the prior art, is excellent in opacity and heat shielding property, and has little deterioration in coloring property when dyed, and also has a color tone. The main purpose is to provide excellent composite fibers.
【０００８】併せて、工程通過時の装置摩耗性が小さ
く、強伸度特性にも優れた不透明繊維の提供を目的とす
る。At the same time, it is an object of the present invention to provide an opaque fiber which is less likely to wear the apparatus when passing through the process and has excellent strength and elongation characteristics.
【０００９】そして、不透明性が必要とされる下着、肌
着、水着類の素材繊維として特に有用であって、視覚的
な被覆効果、審美性及びファッション性を両立させるこ
とが可能な合成繊維の提供を別の目的とする。Further, there is provided a synthetic fiber which is particularly useful as a raw material fiber for underwear, underwear, swimwear and the like which requires opacity, and which can achieve both visual covering effect, aesthetics and fashionability. Is another purpose.
【００１０】[0010]
【課題を解決するための手段】この目的を達成するた
め、本発明に係る不透明性、熱遮蔽性及び発色性に優れ
た複合繊維は、白色顔料の含有量が５〜３０重量％（対
ポリマ）である不透明白色ポリマ層と白色顔料の含有量
が０〜２重量％（対ポリマ）である透明ポリマ層とから
なる複合繊維であって、前記透明ポリマ層が前記不透明
白色ポリマ層によって３層以上に分割されかつ前記透明
ポリマ層が繊維表面の５０％以上を占める繊維横断面複
合構造を有することを特徴とする。In order to achieve this object, the composite fiber according to the present invention which is excellent in opacity, heat shielding property and color forming property has a white pigment content of 5 to 30% by weight (based on the polymer). ) Is an opaque white polymer layer and a transparent polymer layer having a white pigment content of 0 to 2% by weight (based on the polymer), the transparent polymer layer comprising three layers of the opaque white polymer layer. It is characterized in that it has a fiber cross-section composite structure divided into the above and the transparent polymer layer occupies 50% or more of the fiber surface.
【００１１】本発明の複合繊維を構成する２種のポリマ
組成物は、白色顔料の配合の相違により、一方が不透明
性が大幅に高められた不透明白色ポリマ組成物で、他方
が透明性に優れた透明ポリマ組成物（基質ポリマのみで
構成された場合も含む）であり、それぞれ、複合繊維に
おける不透明白色ポリマ層及び透明ポリマ層を構成す
る。The two kinds of polymer compositions constituting the conjugate fiber of the present invention are opaque white polymer compositions in which one is greatly increased in opacity and the other is excellent in transparency due to the difference in the blending of white pigments. And a transparent polymer composition (including a case where it is composed only of a matrix polymer), which form an opaque white polymer layer and a transparent polymer layer in the composite fiber, respectively.
【００１２】不透明白色ポリマ組成物は、白色顔料の高
濃度配合によって不透明化されたものである。この不透
明のために配合する顔料は、十分な不透明性を付与しか
つ染料による発色性や溶融紡糸に障害を及ぼさないとい
う点から白色顔料であることが必要であり、例えば、酸
化チタン、亜鉛華、酸化アルミニウム、酸化ジルコニウ
ム、酸化カルシウム、酸化マグネシウム等が用いられ、
特に酸化チタンが好ましい。これに対し、白色以外の有
色顔料、例えば、黒色顔料、赤色顔料、青色顔料の配合
によっても不透明化することはできるが、この場合、そ
の顔料の色によって色調が大きく影響され、意図する調
色を行なうことが困難である。The opaque white polymer composition is made opaque by high-concentration blending of a white pigment. The pigment blended for this opacity needs to be a white pigment from the viewpoint of imparting sufficient opacity and not impairing the coloring property by the dye and the melt spinning, and for example, titanium oxide, zinc oxide , Aluminum oxide, zirconium oxide, calcium oxide, magnesium oxide, etc. are used,
Titanium oxide is particularly preferable. On the other hand, it is possible to make opaque by blending colored pigments other than white, for example, black pigment, red pigment, and blue pigment, but in this case, the color tone is greatly affected by the color of the pigment, and the intended toning Is difficult to do.
【００１３】その不透明白色ポリマ組成物中における白
色顔料の配合量は、顔料の種類や複合繊維構造等によっ
て最適値はやや異なるが、溶融紡糸性と不透明効果との
両方からして一般的に基質ポリマに対して５〜３０重量
％とする必要がある。特に白色顔料が酸化チタンである
場合には、５〜２５重量％の配合量が好ましい。その白
色顔料が少なければ不透明化効果が不十分であり、逆に
多過ぎると顔料の均一分散が困難となり曳糸性が悪化し
て繊維化することが困難となる。Although the optimum amount of the white pigment in the opaque white polymer composition is slightly different depending on the kind of the pigment, the composite fiber structure, etc., it is generally a substrate because of both the melt spinnability and the opaque effect. It should be 5 to 30% by weight based on the polymer. Particularly when the white pigment is titanium oxide, a blending amount of 5 to 25% by weight is preferable. If the amount of the white pigment is small, the opacifying effect is insufficient. On the contrary, if the amount of the white pigment is too large, it is difficult to uniformly disperse the pigment, and the spinnability is deteriorated, which makes it difficult to form fibers.
【００１４】透明ポリマ組成物は白色顔料を含まないポ
リマあるいは白色顔料を２重量％以下含むポリマ組成物
である。勿論、透明なポリマ組成物とするためには白色
以外の有色顔料は実質的に含むことができない。染料の
発色性を高めるためには、光を散乱させる外部異物とな
るあらゆる顔料を全く含まないことが好ましいが、繊維
のキラツキ感や加工性の低下を抑える必要がある場合に
は、ポリマに対して２重量％以下の少量、特に不透明効
果の高い酸化チタンの場合は０．５重量％以下の少量の
白色顔料を含むことが好ましい。The transparent polymer composition is a polymer containing no white pigment or a polymer composition containing 2% by weight or less of a white pigment. Of course, in order to obtain a transparent polymer composition, substantially no colored pigment other than white can be included. In order to enhance the color developability of the dye, it is preferable not to include any pigment that becomes an external foreign substance that scatters light, but when it is necessary to suppress the feeling of glittering fibers and deterioration of processability, it is preferable to use a polymer. 2% by weight or less, particularly in the case of titanium oxide having a high opacity effect, it is preferable to include a small amount of 0.5% by weight or less of a white pigment.
【００１５】この透明ポリマ組成物中に配合できる白色
顔料としては、例えば、酸化チタン、亜鉛華、酸化アル
ミニウム、酸化ジルコニウム、酸化カルシウム、酸化マ
グネシウム等が用いられ、特に酸化チタンが好ましい。As the white pigment which can be blended in this transparent polymer composition, for example, titanium oxide, zinc white, aluminum oxide, zirconium oxide, calcium oxide, magnesium oxide and the like are used, and titanium oxide is particularly preferable.
【００１６】両ポリマ組成物の基質ポリマは、紡糸によ
る繊維化が可能であれば同一でもよいし異なっていても
良いが、なかでも、紡糸により複合繊維とした場合に両
者が剥離し難いようなポリマ組合せとすることが好まし
い。即ち、ポリエステルとポリアミドのように互いに剥
離し易いポリマ組合せは好ましくない。この点からして
も、同一あるいは類似の化学構造を有するポリマ、さら
には、同一のポリマを用いることが好ましい。The matrix polymers of both polymer compositions may be the same or different as long as they can be spun into fibers, but above all, it is difficult for the two to separate when they are made into conjugate fibers. A polymer combination is preferred. That is, a polymer combination such as polyester and polyamide which are easily separated from each other is not preferable. From this point of view also, it is preferable to use polymers having the same or similar chemical structure, and further, use the same polymers.
【００１７】このようなポリマ基質となるポリマとして
は、繊維形成可能なポリアミド、ポリエステル、ポリオ
レフィン等の溶融紡糸可能なポリマが好適である。具体
的には、ポリεカプラミド、ポリヘキサメチレンアジパ
ミド、ポリエチレンテレフタレート、ポリブチレンテレ
フタレート、ポリプロピレン、ポリエチレン等が挙げら
れる。また、これらポリマは共重合可能なモノマ成分を
共重合させた共重合体であってもよいし、あるいはこれ
らのポリマを混合したポリマブレンドやポリマアロイで
あってもよい。As the polymer that serves as such a polymer substrate, melt-spinnable polymers such as fiber-forming polyamide, polyester, and polyolefin are preferable. Specific examples thereof include poly ε-capramide, polyhexamethylene adipamide, polyethylene terephthalate, polybutylene terephthalate, polypropylene and polyethylene. Further, these polymers may be copolymers obtained by copolymerizing copolymerizable monomer components, or may be polymer blends or polymer alloys obtained by mixing these polymers.
【００１８】さらにまた、これら基質ポリマには、顔料
以外に、制電性、耐光性、耐熱性を付与する薬剤を含ん
でいてもよい。Furthermore, these matrix polymers may contain, in addition to the pigment, a chemical agent imparting antistatic property, light resistance and heat resistance.
【００１９】両ポリマ組成物からの繊維横断面複合構造
は、透明ポリマ層が不透明白色ポリマ層によって３層以
上に分割されていること、かつ透明ポリマ層が繊維表面
の５０％以上を占めることが、不透明性、熱遮蔽性及び
発色性を共に高めた繊維とするために必要である。In the fiber cross-section composite structure from both polymer compositions, the transparent polymer layer is divided into three or more layers by an opaque white polymer layer, and the transparent polymer layer occupies 50% or more of the fiber surface. , It is necessary for the fiber to have improved opacity, heat shielding property, and color development.
【００２０】図１(a) 〜(c) 及び図２に示す繊維横断面
複合構造は本発明に係るものであり、また、図３(a) 、
(b) 及び図４(a) 、(b) は本発明外のものである。The fiber cross-section composite structure shown in FIGS. 1 (a)-(c) and FIG. 2 is in accordance with the present invention, and FIG. 3 (a),
4 (b) and FIGS. 4 (a) and 4 (b) are outside the scope of the present invention.
【００２１】図１(a) 〜(c) 及び図２のように、透明ポ
リマ層（２）が不透明白色ポリマ層（１）によって３層
以上に分割された複合構造とすることによって、目的と
する不透明性及び熱遮蔽性を得ることができる。As shown in FIGS. 1 (a) to 1 (c) and FIG. 2, a transparent polymer layer (2) is divided into three or more layers by an opaque white polymer layer (1) to form a composite structure, which has a purpose. It is possible to obtain opacity and heat shielding properties.
【００２２】これに対し、透明ポリマ層が繊維表面の５
０％以上を占める複合繊維であっても図３(a) 、(b) の
ように透明ポリマ層（２）が１層や２層のみの場合は、
十分な不透明性及び熱遮蔽性を得ることが困難である。On the other hand, the transparent polymer layer has 5
Even if it is a composite fiber that occupies 0% or more, as shown in FIGS. 3 (a) and 3 (b), when the transparent polymer layer (2) has only one or two layers,
It is difficult to obtain sufficient opacity and heat shielding properties.
【００２３】この不透明性の点からは、さらに、繊維横
断面における透明ポリマ層と不透明白色ポリマ層との分
割構造を、光通過透明層部分の割合（χ）が５０％以
下、さらには３０％以下という条件によって特定される
複合構造とすることが好ましい。From the viewpoint of the opacity, the divided structure of the transparent polymer layer and the opaque white polymer layer in the cross section of the fiber has a ratio (χ) of the light transmitting transparent layer portion of 50% or less, further 30%. The composite structure is preferably specified by the following conditions.
【００２４】ここで、光通過透明層部分の割合（χ）と
は、次のようにして求めた値である。Here, the ratio (χ) of the light transmitting transparent layer portion is a value obtained as follows.
【００２５】図２に示す繊維軸に直角に切った時の繊維
横断面において、不透明白色ポリマ層（１）と交差しな
いような直線をなるべく繊維外周面近くに引く。この直
線Ａ0 、Ｂ0 、Ｃ0 、Ｄ0 のそれぞれと繊維断面外周部
とで囲まれた部分３ａ、３ｂ、３ｃ、３ｄの透明ポリマ
層（光通過透明層部分）のそれぞれの面積を測り、その
総和（Ｘ＝３ａ＋３ｂ＋３ｃ＋３ｄ）を算出する。そし
て、この光通過透明層部分の総和（Ｘ）が繊維横断面全
体（Ｓ）中に占める割合（光通過透明層部分の割合：χ
＝（Ｘ／Ｓ）×１００（％））を求める。In the cross section of the fiber when cut at right angles to the fiber axis shown in FIG. 2, a straight line that does not intersect the opaque white polymer layer (1) is drawn as close to the outer peripheral surface of the fiber as possible. The areas of the transparent polymer layers (light transmitting transparent layer portions) of the portions 3a, 3b, 3c and 3d surrounded by the respective straight lines A 0 , B 0 , C 0 and D 0 and the outer peripheral portion of the fiber cross section were measured. , The sum (X = 3a + 3b + 3c + 3d) is calculated. The ratio of the total of the light transmitting transparent layer portions (X) to the entire fiber cross section (S) (the ratio of the light transmitting transparent layer portions: χ
= (X / S) × 100 (%)) is calculated.
【００２６】繊維への入射角が大きいほど光や熱線は繊
維表面で反射されるが、入射角の小さいものは繊維内部
に入り込む。しかし、光通過透明層部分の割合（χ％）
が５０％以下のように不透明白色ポリマ層（１）が配さ
れた複合構造の場合、繊維内部に入り込んだ光や熱線は
その殆どが不透明白色ポリマ層（１）にぶつかって遮ら
れ繊維内部を通過することができないので、優れた不透
明性と熱遮蔽性とが発揮されるのである。Light and heat rays are reflected by the surface of the fiber as the incident angle to the fiber increases, but those having a small incident angle enter the inside of the fiber. However, the ratio of the light transmitting transparent layer part (χ%)
In the case of a composite structure in which the opaque white polymer layer (1) is arranged such that the ratio is 50% or less, most of the light and heat rays that have entered the inside of the fiber hit the opaque white polymer layer (1) and are shielded inside the fiber. Since it cannot pass through, it exhibits excellent opacity and heat shielding properties.
【００２７】一方、透明ポリマ層（２）が繊維表面の５
０％以上を占める複合構造とすることによって、不透明
化しても、光沢や発色性の低下を十分に抑制することが
できるのである。On the other hand, the transparent polymer layer (2) has 5
By making the composite structure occupy 0% or more, even if it becomes opaque, it is possible to sufficiently suppress the deterioration of gloss and color developability.
【００２８】ここで、透明ポリマ層が繊維表面に占める
割合とは、透明ポリマ層の繊維表面長の和（ｌ）の繊維
横断面における繊維表面全体周長（Ｌ）に対する割合
（ｌ／Ｌ）×１００（％）の値である。Here, the ratio of the transparent polymer layer to the fiber surface means the ratio (l / L) of the sum (l) of the fiber surface lengths of the transparent polymer layer to the entire fiber surface perimeter (L) in the fiber cross section. The value is × 100 (%).
【００２９】透明ポリマ層と不透明白色ポリマ層との容
積比率（繊維横断面積比率）は、不透明白色ポリマ層中
の白色顔料濃度や複合構造等にも左右されるが、一般
に、８０／２０〜３０／７０であればよく、さらに７０
／３０〜５０／５０が好ましい。The volume ratio (fiber cross-sectional area ratio) between the transparent polymer layer and the opaque white polymer layer depends on the white pigment concentration in the opaque white polymer layer, the composite structure, etc., but generally 80/20 to 30. / 70, and 70
/ 30 to 50/50 is preferable.
【００３０】例えば、不透明白色ポリマ層中の白色顔料
の濃度が高い場合や前記光通過透明層部分の割合が小さ
い場合は、その不透明白色ポリマ層の複合比率は少な目
でも所期の不透明化効果及び熱遮蔽効果を得ることがで
きる。For example, when the concentration of the white pigment in the opaque white polymer layer is high or when the ratio of the light transmitting transparent layer portion is small, the composite ratio of the opaque white polymer layer is small and the desired opacity effect and A heat shield effect can be obtained.
【００３１】また、透明ポリマ層の比率が多いほど染料
による鮮明な発色が得られるが、不透明性は一般に悪化
する傾向にある。Further, the larger the ratio of the transparent polymer layer, the clearer the color development by the dye, but the opacity generally tends to deteriorate.
【００３２】本発明における白色顔料のポリマ基質への
配合は、パウダー状の所定量の白色顔料をポリマペレッ
トの表面にまぶし均一混合する方法、ポリマ基質の重合
時に白色顔料を添加混合し重合する方法等により行なえ
ばよい。特に高濃度の顔料配合を必要とする不透明白色
ポリマ組成物の場合は、重合時に添加する方法が顔料の
均一分散性の点で好ましい。In the present invention, the white pigment is blended with the polymer substrate by sprinkling a predetermined amount of powdery white pigment on the surface of the polymer pellet and uniformly mixing, or by adding and mixing the white pigment at the time of polymerizing the polymer substrate. And so on. Particularly in the case of an opaque white polymer composition that requires high-concentration pigment blending, the method of addition during polymerization is preferable from the viewpoint of uniform dispersibility of the pigment.
【００３３】不透明白色ポリマ組成物と透明ポリマ組成
物とは、それぞれペレット化された後、通常の方法でも
って複合紡糸されて所望の複合構造を有する複合繊維と
される。The opaque white polymer composition and the transparent polymer composition are each pelletized and then composite-spun by a conventional method to obtain a composite fiber having a desired composite structure.
【００３４】溶融複合紡糸するにあたっては、上述の２
種類のポリマ組成物を別々に溶融し、透明ポリマ組成物
が不透明白色ポリマ組成物によって３以上に分割される
複合構造とすることができる通常の複合紡糸口金孔（例
えば、特開昭５５−８０５１２号公報記載の複合紡糸口
金孔が用いられる）から紡出し、冷却、給油の後、必要
に応じて延伸する、あるいは高速紡糸するというような
通常の製糸方法で繊維化し、所望の繊維複合構造を有す
るフィラメント糸とすればよい。必要ならば得られたフ
ィラメント糸を細断し、巻縮を付与したステープル繊維
としてもよい。In the melt composite spinning, the above-mentioned 2
A conventional composite spinneret hole (eg, JP-A-55-80512) in which different types of polymer compositions are melted separately to form a composite structure in which the transparent polymer composition is divided into three or more by the opaque white polymer composition. (The composite spinneret hole described in Japanese Patent Publication is used), and after spinning, cooling and lubrication, the fiber is made into a fiber by a usual fiber-making method such as drawing as required or high-speed spinning to obtain a desired fiber composite structure. The filament yarn may be included. If necessary, the obtained filament yarn may be chopped into crimped staple fibers.
【００３５】得られたフィラメント糸やステープル繊維
等は、通常の方法で紡績、編成あるいは製繊して布帛と
する。そして、これら布帛は、通常は最後に、染色、仕
上加工されて製品布帛となる。The obtained filament yarn, staple fiber and the like are spun, knitted or woven into fibers to produce a cloth. Then, these fabrics are usually finally dyed and finished to be product fabrics.
【００３６】この染色は、衣料用やインテリア用等に通
常使われる染料によって通常の方法で行なえばよい。例
えば、白色布帛製品とする場合には、蛍光白色染料を用
いればよいし、また、着色布帛製品とする場合には任意
の有色染料を用いればよい。その染色処理は通常布帛段
階で行なわれるが、糸の段階等で行なってもよい。This dyeing may be carried out by an ordinary method with a dye usually used for clothes and interiors. For example, in the case of a white fabric product, a fluorescent white dye may be used, and in the case of a colored fabric product, any colored dye may be used. The dyeing treatment is usually performed at the fabric stage, but may be performed at the yarn stage or the like.
【００３７】このように本発明の繊維は染色した繊維製
品としも、染料固有の鮮明さの低下が小さく発色性が高
いものであり、しかも、極めて高い不透明性をも具備す
る染色繊維製品とできるのである。As described above, even when the fiber of the present invention is a dyed fiber product, it is possible to obtain a dyed fiber product which has a small decrease in the sharpness peculiar to the dye and has a high coloring property, and also has an extremely high opacity. Of.
【００３８】[0038]
【作用】以上説明したように、本発明の複合繊維は、透
明ポリマ層が不透明白色ポリマ層によって３層以上に分
割されているという特定の複合構造であることによっ
て、高濃度の白色顔料を含有する不透明白色ポリマ層に
よる不透明効果及び熱遮蔽効果が十分に発揮され、しか
も、透明ポリマ層が繊維表面の５０％以上を占めるとい
う特定の複合構造であることによって顔料添加による発
色性低下を十分に抑制することができる。この結果、不
透明性、熱遮蔽性及び発色性という相反する特性を具備
した繊維を得ることができたのである。As described above, the conjugate fiber of the present invention contains a high-concentration white pigment due to the specific composite structure in which the transparent polymer layer is divided into three or more layers by the opaque white polymer layer. The opaque white polymer layer has a sufficient opacity effect and heat shielding effect, and the transparent polymer layer occupies 50% or more of the fiber surface, so that the coloring property is sufficiently reduced by the addition of the pigment. Can be suppressed. As a result, it was possible to obtain a fiber having contradictory properties such as opacity, heat shielding property, and color development property.
【００３９】これに対し、芯鞘型複合繊維（図３(a)
）、２層分割型複合繊維（図３(b) ）、外層不透明化
芯鞘型複合繊維（図４(a) 、(b) ）のような本発明外の
複合繊維では、同程度の不透明性と熱遮蔽性とを得るに
多くの顔料配合が必要で、繊維特性の低下、染色時の発
色性の低下という弊害が生じる。On the other hand, the core-sheath type composite fiber (Fig. 3 (a))
) Two-layer split type conjugate fiber (Fig. 3 (b)) and outer layer opaque core / sheath type conjugate fiber (Figs. 4 (a), (b)) other than the present invention have similar opacity. A large amount of pigment is required to obtain good properties and heat-shielding properties, which causes the adverse effects of deterioration of fiber characteristics and deterioration of coloring property during dyeing.
【００４０】[0040]
［実施例１］ε−カプロラクタムに酸化チタンを２５重
量％添加し、通常の方法で重合し、硫酸相対粘度が２．
４０の不透明ナイロン組成物を得た。[Example 1] Titanium oxide was added to ε-caprolactam in an amount of 25% by weight, and the mixture was polymerized by a usual method to give a sulfuric acid relative viscosity of 2.
40 opaque nylon compositions were obtained.
【００４１】この不透明ナイロン組成物に、酸化チタン
も他の顔料も全く添加してないブライトナイロン６を所
定量混合し、酸化チタン含有量が３重量％、６重量％、
１２重量％に調整した不透明ナイロン組成物を得た。A predetermined amount of bright nylon 6 containing neither titanium oxide nor any other pigment was mixed with this opaque nylon composition to give a titanium oxide content of 3% by weight, 6% by weight,
An opaque nylon composition adjusted to 12% by weight was obtained.
【００４２】これらの不透明ナイロン組成物と、酸化チ
タンを実質的に含まず他の顔料も含まないブライトナイ
ロン６とを、それぞれ別々に溶融し、特開昭５５−８０
５１２号公報記載の方法で６分割型複合紡糸口金を用い
て溶融複合紡糸し、通常の方法で延伸し、５０デニール
１７フィラメントの複合繊維糸を得た（ No.１〜４）。These opaque nylon compositions and bright nylon 6 substantially free of titanium oxide and free of other pigments are separately melted, and then, disclosed in JP-A-55-80.
According to the method described in Japanese Patent Publication No. 512, melt splitting was performed using a 6-splitting type composite spinneret and stretched by a usual method to obtain 50 denier 17 filaments composite fiber yarn (Nos. 1 to 4).
【００４３】得られた複合繊維横断面における不透明ナ
イロン層と透明ナイロン層との複合比率は３０／７０で
あり、その複合構造は図１（ｂ）のようであり、その光
通過透明層部分の割合（χ）は１２％であった。The composite ratio of the opaque nylon layer and the transparent nylon layer in the cross section of the obtained composite fiber was 30/70, and the composite structure was as shown in FIG. 1 (b). The ratio (χ) was 12%.
【００４４】一方、比較として、３．４重量％の酸化チ
タンあるいは７．３重量％の酸化チタンを均一に含むナ
イロン６組成物、または、酸化チタンを実質的に含まず
他の顔料も含まないブライトナイロン６のそれぞれを、
通常の方法で単独紡糸し、同様に延伸して５０デニール
１７フィラメントの単独繊維糸を得た（ No.５〜７）。On the other hand, as a comparison, a nylon 6 composition uniformly containing 3.4% by weight of titanium oxide or 7.3% by weight of titanium oxide, or substantially free of titanium oxide and free of other pigments. Each of Bright Nylon 6
Single spinning was carried out by an ordinary method, and similarly stretched to obtain a single fiber yarn of 50 denier 17 filaments (No. 5 to 7).
【００４５】これら糸条のそれぞれを４本揃え、筒編地
を作成しこれについて酸性染料“サンドランファストブ
ルー”（サンド（株）製）で染色した。得られた布帛に
ついて、透け感を示すＬｔ値及び発色性を示すＬｗ値と
を測定した。Four pieces of each of these yarns were prepared to prepare a tubular knitted fabric, which was dyed with an acid dye "Sandran Fast Blue" (manufactured by Sand Co.). With respect to the obtained cloth, an Lt value showing a see-through feeling and an Lw value showing a coloring property were measured.
【００４６】Ｌｔ値及びＬｗ値は次の測定方法によっ
た。The Lt value and Lw value were measured by the following measuring method.
【００４７】即ち、サンプル布帛の裏側に黒いフェルト
を張りつけて白色光の反射率（Ｌｂ）を測定する。次い
で、黒いフェルトの代わりに標準白板を張りつけ同様な
条件で反射率（Ｌｗ）を測定する。両反射率の差（Ｌｂ
−Ｌｗ）を求めＬｔ値とする。このＬｔ値が小さいほど
布帛の透け感が少ない。That is, a black felt is attached to the back side of the sample cloth and the reflectance (Lb) of white light is measured. Then, a standard white plate is attached instead of the black felt, and the reflectance (Lw) is measured under the same conditions. Difference between both reflectances (Lb
-Lw) is calculated and set as the Lt value. The smaller the Lt value, the less transparent the cloth feels.
【００４８】また、Ｌｗ値は染色した布帛の発色性の目
安となるものであり、このＬｗ値が小さい程、チョーク
状艶消し色調がなく発色性が良好である。The Lw value is a measure of the color developability of the dyed fabric. The smaller the Lw value, the better the color developability without the chalky matte color tone.
【００４９】さらにまた、これら糸条を、スチール製の
編針の上を、１０ｇの荷重をかけて５００ｍ／min の速
度で６０分間走らせ、その後の編針の磨耗の程度を相対
評価した。Furthermore, these yarns were run on a steel knitting needle at a speed of 500 m / min for 60 minutes under a load of 10 g, and the degree of abrasion of the knitting needle after that was relatively evaluated.
【００５０】得られたの結果を表１に示した。The results obtained are shown in Table 1.
【００５１】[0051]
【表１】 本発明によって得られた布帛（ No.２〜４）は、繊維全
体の酸化チタン含有量が比較的少ない場合でも透け感が
小さいし、しかも、染色した布は、チョーク状色調とな
ることが十分に抑えられて、発色性に優れていた。さら
に、糸条の針磨耗は、繊維内部に酸化チタンを均一配合
した単独糸（ No.５、６）に比べて非常に軽減されてい
た。[Table 1] The fabrics (Nos. 2 to 4) obtained by the present invention have a low sheer feeling even when the titanium oxide content of the whole fiber is relatively small, and the dyed fabric is sufficiently chalky in color. The color development was excellent. Further, the needle wear of the yarn was significantly reduced as compared with the single yarn (No. 5 and 6) in which the titanium oxide was uniformly blended inside the fiber.
【００５２】これに対し、本発明と同じ断面形状でも不
透明白色ポリマ層中の酸化チタン含有量が少な過ぎる場
合（ No.１）は、不透明化効果が小さく不適当であっ
た。On the other hand, when the content of titanium oxide in the opaque white polymer layer was too small (No. 1) even with the same cross-sectional shape as that of the present invention, the opacifying effect was small and unsuitable.
【００５３】また、 No.４の複合繊維とポリウレタン弾
性繊維とを交編してシングルトリコットを編成し、通常
の蛍光白色染料で染色し、縫製して、白色水着とした。
得られた白色水着は、水に濡れても透けることがなくか
つ鮮明な白色であり、透け防止及び色調がともに優れた
白色水着であった。Further, a single tricot was knitted by interlacing No. 4 composite fiber and polyurethane elastic fiber, dyed with a usual fluorescent white dye, and sewn to obtain a white swimsuit.
The obtained white swimsuit was a white swimsuit which was not transparent even when it got wet with water and had a clear white color, and which was excellent in both transparency prevention and color tone.
【００５４】［実施例２］実施例１と同様に酸化チタン
を２０重量％添加し重合して不透明ナイロン６組成物を
得た。Example 2 In the same manner as in Example 1, 20% by weight of titanium oxide was added and polymerized to obtain an opaque nylon 6 composition.
【００５５】この不透明ナイロン６組成物と、酸化チタ
ンも他の顔料も実質的に含まないブライトナイロン６と
を複合比率１５：８５で、実施例１と同様の方法で溶融
複合紡糸した。ただし、繊維横断面複合構造は、図１
(a) 、図３(a) 、図３(b) となるように複合紡糸口金を
変更した。This opaque nylon 6 composition and bright nylon 6 substantially free of titanium oxide and other pigments were subjected to melt composite spinning in the same manner as in Example 1 in a composite ratio of 15:85. However, the fiber cross-section composite structure is shown in FIG.
The composite spinneret was changed so that (a), FIG. 3 (a), and FIG. 3 (b) were obtained.
【００５６】これら糸条について、実施例１と同様の方
法で透け感と発色性とを測定し、その結果を表２に示し
た。With respect to these yarns, the feeling of see-through and color developability were measured in the same manner as in Example 1, and the results are shown in Table 2.
【００５７】[0057]
【表２】 不透明白色ポリマ層が繊維表面の５０％以上を占める複
合繊維であっても、透明ポリマ層が不透明白色ポリマ層
によって３層以上に分割された複合構造である場合（ N
o.８）は不透明性に優れるが、それ以外の芯鞘型（ No.
９）や２層分割型（ No.１０）の場合は、不透明効果が
不十分であった。[Table 2] Even if the opaque white polymer layer is a composite fiber occupying 50% or more of the fiber surface, the transparent polymer layer has a composite structure divided into three or more layers by the opaque white polymer layer (N
o.8) has excellent opacity, but other core-sheath types (No.
In the case of 9) or the two-layer split type (No. 10), the opacity effect was insufficient.
【００５８】さらに、 No.８、 No.９の複合繊維、及
び、同一繊度の市販セミダルナイロン６フィラメント糸
（酸化チタン含量３．０重量％）のそれぞれについて、
目付け９５ｇ／ｍ2 、厚さ０．１７mmの編地を編成し、
これを通常の白色蛍光染料で染色して白色布帛とした。Further, with respect to each of the No. 8 and No. 9 composite fibers and the commercially available semi-dal nylon 6 filament yarn (titanium oxide content 3.0% by weight) of the same fineness,
A knitted fabric having a basis weight of 95 g / m 2 and a thickness of 0.17 mm is knitted,
This was dyed with an ordinary white fluorescent dye to give a white cloth.
【００５９】得られた白色布帛について熱遮蔽性を試験
した。The resulting white fabric was tested for heat shielding properties.
【００６０】熱遮蔽性の試験法： 試料布帛を試料台の
上に横に広げて置き、その上部から３００Ｗのレフレタ
ーランプの光を１０分間照射した。その直後に、試料布
帛と試料台との間の温度を測定する。Test Method for Heat Shielding Property: The sample cloth was laid laterally on a sample table and irradiated with light from a 300 W reflector lamp for 10 minutes from above. Immediately thereafter, the temperature between the sample fabric and the sample table is measured.
【００６１】その結果、本発明の No.８の布帛の場合は
５０℃であったのに対し、 No.９の布帛の場合は５３
℃、市販セミダルナイロン６糸の場合は５８℃と高かっ
た。このように、本発明の繊維は熱遮蔽性においても優
れていた。As a result, the No. 8 fabric of the present invention had a temperature of 50 ° C., while the No. 9 fabric had a temperature of 53 ° C.
℃, in the case of commercially available semi-dal nylon 6 yarn was as high as 58 ℃. Thus, the fiber of the present invention was also excellent in heat shielding property.
【００６２】［実施例３］ポリエチレンテレフタレート
に酸化チタンを１０重量％添加して不透明ポリエチレン
テレフタレート組成物を得た。Example 3 10% by weight of titanium oxide was added to polyethylene terephthalate to obtain an opaque polyethylene terephthalate composition.
【００６３】この不透明ポリエチレンテレフタレート
と、酸化チタンも他の顔料も実質的に含まないブライト
ポリエチレンテレフタレートとを複合比率４０：６０で
通常の方法により溶融紡糸し、繊維横断面形状が図２、
図４(a) 、図４(b) である７５デニール２４フィラメン
トのポリエステル繊維糸を得た。This opaque polyethylene terephthalate and bright polyethylene terephthalate substantially free of titanium oxide and other pigments were melt-spun by a conventional method at a composite ratio of 40:60, and the fiber cross-sectional shape was as shown in FIG.
A polyester fiber yarn of 75 denier 24 filaments as shown in FIGS. 4 (a) and 4 (b) was obtained.
【００６４】これら糸条について、実施例１と同様の方
法で透け感と発色性とを測定し、その結果を表３に示し
た。With respect to these yarns, the feeling of see-through and color developability were measured in the same manner as in Example 1, and the results are shown in Table 3.
【００６５】[0065]
【表３】 透明性ポリマ層が繊維表面の５０％以上を占める No.１
１の場合は透け防止と発色性とを兼備できたが、その割
合が小さ過ぎた No.１２、１３の場合は発色性が劣って
いた。[Table 3] No.1 where the transparent polymer layer occupies 50% or more of the fiber surface
In the case of No. 1, it was possible to combine the prevention of see-through and the color developability, but in the cases of Nos. 12 and 13 where the ratio was too small, the color developability was poor.
【００６６】[0066]
【発明の効果】本発明によると、染料による発色性の低
下を十分に抑制しつつ、不透明性と熱遮蔽性とを向上さ
せることができるので、不透明性、熱遮蔽性及び発色性
がともに優れた繊維を容易に得ることができる。EFFECTS OF THE INVENTION According to the present invention, the opacity and the heat-shielding property can be improved while sufficiently suppressing the deterioration of the color-forming property due to the dye. Therefore, the opacity, the heat-shielding property and the color-forming property are excellent. The obtained fiber can be easily obtained.
【００６７】例えば、本発明の染色繊維による布帛製品
は、その布帛製品を着用したときの視覚的な被覆性が極
めて高く、その下の肌や着用衣服が透けて見えることが
大幅に防止される。これに加うるに、染色してもダル化
が抑制できるので、ファッション性に富む繊維製品の設
計が可能となる。For example, the cloth product made of the dyed fiber of the present invention has an extremely high visual covering property when the cloth product is worn, and it is greatly prevented that the skin or the clothes under it can be seen through. .. In addition to this, since dulling can be suppressed even by dyeing, it is possible to design a textile product that is highly fashionable.
【００６８】また、水濡れ時の不透明効果も高いので、
透けの点から従来は製造困難とされていた薄地の白色水
着の製造も可能となる。Since the opacity effect when wet with water is high,
It is also possible to manufacture thin white swimsuits that were previously difficult to manufacture due to their transparency.
【００６９】さらに、工程通過時の装置摩耗性が小さ
く、強伸度特性にも優れた不透明性、熱遮蔽性繊維が得
られる。Further, it is possible to obtain an opaque and heat-shielding fiber which is less likely to wear the apparatus when passing through the process and is excellent in strength and elongation characteristics.
【図１】 本発明の複合繊維における繊維複合構造を例
示する繊維横断面図である。FIG. 1 is a fiber cross-sectional view illustrating a fiber composite structure in a composite fiber of the present invention.
【図２】 本発明の複合繊維における繊維複合構造の他
の例を示す繊維横断面図であって、請求項３にいう光通
過透明層部分の割合の測定方法を説明する。FIG. 2 is a cross-sectional view of a fiber showing another example of the fiber composite structure in the composite fiber of the present invention, and a method for measuring the ratio of the light transmitting transparent layer portion according to claim 3 will be described.
【図３】 本発明以外の繊維複合構造を例示する繊維横
断面図である。FIG. 3 is a fiber cross-sectional view illustrating a fiber composite structure other than the present invention.
【図４】 本発明以外の繊維複合構造の他の例を示す繊
維横断面図である。FIG. 4 is a fiber cross-sectional view showing another example of a fiber composite structure other than the present invention.
１：不透明白色ポリマ層、 ２：透明ポリマ層、 ３ａ
〜３ｄ：光通過透明層部分1: opaque white polymer layer, 2: transparent polymer layer, 3a
~ 3d: Light-transmitting transparent layer portion
Claims (5)
（対ポリマ）である不透明白色ポリマ層と白色顔料の含
有量が０〜２重量％（対ポリマ）である透明ポリマ層と
からなる複合繊維であって、前記透明ポリマ層が前記不
透明白色ポリマ層によって３層以上に分割されかつ前記
透明ポリマ層が繊維表面の５０％以上を占める繊維横断
面複合構造を有することを特徴とする不透明性、熱遮蔽
性及び発色性に優れた複合繊維。1. The content of white pigment is 5 to 30% by weight.
A composite fiber comprising an opaque white polymer layer (to be a polymer) and a transparent polymer layer in which a content of a white pigment is 0 to 2% by weight (to a polymer), wherein the transparent polymer layer is the opaque white polymer layer. A composite fiber excellent in opacity, heat shielding property and color developability, characterized in that the transparent polymer layer is divided into three or more layers and the transparent polymer layer occupies 50% or more of the fiber surface.
リマと前記透明ポリマ層を構成するポリマとが同一であ
ることを特徴とする請求項１記載の不透明性、熱遮蔽性
及び発色性に優れた複合繊維。2. The excellent opacity, heat-shielding property, and color developability according to claim 1, wherein the polymer forming the opaque white polymer layer and the polymer forming the transparent polymer layer are the same. Composite fiber.
繊維横断面積全体に対する光通過透明層部分の割合
（χ）が５０％以下の要件を満たす複合構造であること
を特徴とする請求項１記載の不透明性、熱遮蔽性及び発
色性に優れた複合繊維。3. The fiber cross-section composite structure further comprises:
The composite having excellent opacity, heat-shielding property and color developability according to claim 1, which is a composite structure satisfying the requirement that the ratio (χ) of the light transmitting transparent layer portion to the entire fiber cross-sectional area is 50% or less. fiber.
を特徴とする請求項１記載の不透明性、熱遮蔽性及び発
色性に優れた複合繊維。4. The composite fiber excellent in opacity, heat shielding property and color forming property according to claim 1, wherein the white pigment is titanium oxide.
特徴とする請求項１記載の不透明性、熱遮蔽性及び発色
性に優れた複合繊維。5. The composite fiber according to claim 1, wherein the composite fiber is dyed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4047302A JP2947662B2 (en) | 1992-03-04 | 1992-03-04 | Opacity. Waterborne and underwear composite fiber with excellent heat shielding and coloring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4047302A JP2947662B2 (en) | 1992-03-04 | 1992-03-04 | Opacity. Waterborne and underwear composite fiber with excellent heat shielding and coloring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05247723A true JPH05247723A (en) | 1993-09-24 |
| JP2947662B2 JP2947662B2 (en) | 1999-09-13 |
Family
ID=12771493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4047302A Expired - Fee Related JP2947662B2 (en) | 1992-03-04 | 1992-03-04 | Opacity. Waterborne and underwear composite fiber with excellent heat shielding and coloring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2947662B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990026534A (en) * | 1997-09-25 | 1999-04-15 | 전원중 | Opaque Composite Fiber |
| KR100421921B1 (en) * | 1996-12-20 | 2004-04-17 | 주식회사 효성 | Production of high functional opaque fiber having excellent color property |
| JP2011246842A (en) * | 2010-05-26 | 2011-12-08 | Kb Seiren Ltd | Synthetic fiber |
| CN104963014A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective PTT fiber and preparation method thereof |
| CN104963013A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective DTY fiber and preparation method thereof |
| CN104963012A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective PBT fiber and preparation method thereof |
| CN104988587A (en) * | 2015-06-01 | 2015-10-21 | 吴江市海成纺织有限公司 | Anti-transparent FDY fiber and preparation method thereof |
| CN105155009A (en) * | 2015-06-01 | 2015-12-16 | 吴江市海成纺织有限公司 | Orange-type anti-perspective fiber and preparation method thereof |
| JP2018159159A (en) * | 2017-03-23 | 2018-10-11 | Ｋｂセーレン株式会社 | Fluorescent polyester fiber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154435A (en) * | 1981-03-12 | 1982-09-24 | Kanebo Gosen Kk | Raised product |
| JPS5865034A (en) * | 1981-10-13 | 1983-04-18 | カネボウ株式会社 | Raised product |
-
1992
- 1992-03-04 JP JP4047302A patent/JP2947662B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154435A (en) * | 1981-03-12 | 1982-09-24 | Kanebo Gosen Kk | Raised product |
| JPS5865034A (en) * | 1981-10-13 | 1983-04-18 | カネボウ株式会社 | Raised product |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100421921B1 (en) * | 1996-12-20 | 2004-04-17 | 주식회사 효성 | Production of high functional opaque fiber having excellent color property |
| KR19990026534A (en) * | 1997-09-25 | 1999-04-15 | 전원중 | Opaque Composite Fiber |
| JP2011246842A (en) * | 2010-05-26 | 2011-12-08 | Kb Seiren Ltd | Synthetic fiber |
| CN104963014A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective PTT fiber and preparation method thereof |
| CN104963013A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective DTY fiber and preparation method thereof |
| CN104963012A (en) * | 2015-06-01 | 2015-10-07 | 吴江市海成纺织有限公司 | Anti-perspective PBT fiber and preparation method thereof |
| CN104988587A (en) * | 2015-06-01 | 2015-10-21 | 吴江市海成纺织有限公司 | Anti-transparent FDY fiber and preparation method thereof |
| CN105155009A (en) * | 2015-06-01 | 2015-12-16 | 吴江市海成纺织有限公司 | Orange-type anti-perspective fiber and preparation method thereof |
| JP2018159159A (en) * | 2017-03-23 | 2018-10-11 | Ｋｂセーレン株式会社 | Fluorescent polyester fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2947662B2 (en) | 1999-09-13 |
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