JP2003293217A - Polyvinyl chloride-based fiber - Google Patents
Polyvinyl chloride-based fiberInfo
- Publication number
- JP2003293217A JP2003293217A JP2002093450A JP2002093450A JP2003293217A JP 2003293217 A JP2003293217 A JP 2003293217A JP 2002093450 A JP2002093450 A JP 2002093450A JP 2002093450 A JP2002093450 A JP 2002093450A JP 2003293217 A JP2003293217 A JP 2003293217A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl chloride
- resin
- chloride resin
- fiber
- composition
- 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.)
- Granted
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- Compositions Of Macromolecular Compounds (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、ウィッグ、ヘアピ
ース、ブレード、エクステンションヘアー等の頭髪装飾
用の、人工毛髪用繊維に用いられる塩化ビニル系樹脂繊
維に関するものである。
【０００２】
【従来の技術】従来、ポリ塩化ビニル系繊維は、強度、
伸度、透明性等が優れていることから、人工毛髪用繊維
や防虫網として使用され、例えばポリ塩化ビニル系樹脂
と塩素化ポリ塩化ビニル樹脂を有する組成物からなるポ
リ塩化ビニル系繊維として特公昭６０−１８３２３号の
手段が知られている。
【発明が解決しようとする課題】
【０００３】しかしながら、上記手段のポリ塩化ビニル
系繊維にあっては、ポリ塩化ビニル系樹脂と塩素化ポリ
塩化ビニル樹脂の相溶性が悪いため、紡糸性が劣ってし
まうという課題があった。
【０００４】このような問題を解決するために、特開平
１０−１０２３１７号公報が示すように、ポリ塩化ビニ
ル系樹脂と塩素化ポリ塩化ビニル樹脂を有する組成物
に、エチレン・酢ビ／塩ビグラフト重合樹脂を添加する
ことにより紡糸性を改善させることが提案されている。
しかしながら、エチレン・酢ビ／塩ビグラフト重合樹脂
の添加量増加にしたがって、繊維の熱収縮性が悪化する
という新たな課題があった。
【０００５】そこで、本発明の目的は、従来のポリ塩化
ビニル系樹脂に特定範囲の塩素化ポリ塩化ビニル樹脂を
配合することにより、従来の紡糸性を維持し、熱収縮率
を向上させたポリ塩化ビニル系繊維を提供することにあ
る。
【課題を解決するための手段】
【０００６】本発明者は、上記に鑑み鋭意検討を行った
結果、ポリ塩化ビニル系樹脂と、塩素化ポリ塩化ビニル
樹脂を有する組成物を繊維状に形成したポリ塩化ビニル
系繊維において、前記組成物が、前記ポリ塩化ビニル系
樹脂１００重量部、前記塩素化ポリ塩化ビニル樹脂の塩
素含有率（Ｘ）が５７．０〜６９．０％、該塩素化ポリ
塩化ビニル樹脂の配合量（Ｙ）が特定の式を満たす範囲
内であることを特徴とし、これにより、上記課題を解決
できることを見い出し、本発明を完成した。
【発明の実施の形態】
【０００７】本発明に使用される塩素化ポリ塩化ビニル
樹脂は、ポリ塩化ビニル系樹脂を塩素化させたものであ
り、塩素含有率（Ｘ）によって配合量（Ｙ）を、以下に
説明する式１を満たすようにすることにより、ポリ塩化
ビニル系繊維の紡糸性を維持し、熱収縮性を向上させる
ものである。
【０００８】この式１は、次に示す式である。
１.０≦Ｙ≦０．３１Ｘ2−４４．９２３Ｘ＋１６２８
【０００９】塩素化ポリ塩化ビニル樹脂の塩素含有率
（Ｘ）にあっては、あまりに低いと熱収縮性を向上させ
る効果が得られず、あまりに高いと紡糸性が悪くなって
しまうため、５７．０〜６９．０％が良い。
【００１０】また、塩素化ポリ塩化ビニル樹脂の配合量
にあっては、あまりに少ないと熱収縮性を向上させる効
果が得られず、あまりに多いと紡糸性が悪くなってしま
うため、１重量部以上且つ塩素含有率に応じた上記式１
を満たす配合量が良い。
【００１１】塩素化ポリ塩化ビニル樹脂の重合度にあっ
ては、あまりに低いと熱収縮性を向上させる効果が得ら
れず、あまりに高いと紡糸性が悪くなってしまうため、
５００〜１０００が良い。
【００１２】なお、塩素化ポリ塩化ビニル樹脂とは、塊
状、懸濁あるいは特に塩素化に有利な方法により重合さ
れたポリ塩化ビニル系樹脂を、気相、液相等の塩素化方
法によって塩素化させたものである。
【００１３】本発明に使用されるポリ塩化ビニル系樹脂
は、ポリ塩化ビニル系繊維のベースポリマとして採用し
たものである。ここで、ポリ塩化ビニル系樹脂の平均重
合度は、特に限定するわけではないが、あまりに低いと
溶融粘度が低下して得られた繊維が熱収縮しやすくな
り、あまりに高いと溶融粘度が上昇して成形温度が高く
なって繊維の着色が発生してしまうため、６００〜１３
００であることが好ましい。
【００１４】該ポリ塩化ビニル系樹脂は、具体的には従
来公知の塩化ビニル単独重合体、塩化ビニルとエチレ
ン、プロピレン、アルキルビニルエーテル、ビニリデン
クロライド、酢酸ビニル、アクリル酸エステル、マレイ
ン酸エステル等との共重合体またはこれらの混合物があ
る。
【００１５】本発明のポリ塩化ビニル系繊維にあって
は、目的に応じて塩化ビニル系組成物に使用される従来
公知の添加剤を「ポリ塩化ビニル系樹脂と塩素化ポリ塩
化ビニル樹脂を有する組成物」に配合してもよい。添加
剤の例としては、滑剤、熱安定剤、加工助剤、強化剤、
紫外線吸収剤、酸化防止剤、帯電防止剤、充填剤、難燃
剤、顔料、初期着色改善剤、導電性付与剤、表面処理
剤、光安定剤、香料等がある。
【００１６】上記「ポリ塩化ビニル系樹脂と、塩素化ポ
リ塩化ビニル樹脂を有する組成物」は、従来公知の混合
機(例えばヘンシェルミキサー、リボンブレンダー等)を
使用して混合したパウダーコンパウンドや該パウダーコ
ンパウンドを溶融混合したペレットコンパウンドであっ
てもよい。該パウダーコンパウンドの製造は、従来公知
の通常の条件で製造でき、ホットブレンドでもコールド
ブレンドでもよい。該ペレットコンパウンドは、通常の
塩化ビニル系ペレットコンパウンドの製造と同様にして
製造できる。この製造機械としては、例えば単軸押出
機、異方向二軸押出機、コニーダーなどの混練機があ
る。
【００１７】前記「ポリ塩化ビニル系樹脂と、塩素化ポ
リ塩化ビニル樹脂を有する組成物」を繊維状の未延伸糸
にする際には、従来公知の押出機を使用できる。該押出
機としては、例えば単軸押出機、異方向二軸押出機、コ
ニカル二軸押出機がある。
【００１８】本発明で前記組成物を溶融紡糸する際に
は、１個のノズル孔面積０．２ｍｍ2以下、さらに好ま
しくは、１個のノズル孔面積０．０４〜０．０６ｍｍ2
のノズルをダイ先端部に取りつけて行うことが望まし
い。該断面積が０．２ｍｍ2を越えるものを用いて細い
３００デニール以下の未延伸糸を得ようとすると、ドラ
フト比率を極端に上げなければならなくなって紡糸時の
糸切れ頻度が増加するため、好ましくない。
【００１９】本発明においては、未延伸糸の繊度を３０
０デニール以下にしておくことが好ましい。この値に限
定したのは、該未延伸糸の繊度があまりに大きいと、低
い繊度の繊維を得る為に延伸倍率を大きくする必要が生
じ、延伸時の糸切れ頻度が激増し生産性が低下するため
好ましくないからである。
【００２０】前記溶融紡糸で得られた未延伸糸は、空気
雰囲気下での延伸処理をなされた後、熱弛緩処理が施さ
れて、その繊度が１００デニール以下になされる。
【００２１】上記延伸処理及び熱弛緩処理条件は、例え
ば特開平１１−１００７１４で開示されている条件で行
えばよい。該条件とは、延伸処理は１００〜１５０℃の
雰囲気下で３〜４．５倍程度の延伸倍率とし、熱弛緩処
理は１００〜１５０℃の雰囲気下で行うものである。
【００２２】本発明の組成物を用いて得られたポリ塩化
ビニル系繊維は、例えばウィッグ、ヘアピース、ブレー
ド、エクステンションヘアー等の頭髪装飾用の、人工毛
髪用繊維に用いることができる。
【００２３】
【実施例】本発明にかかる実施例を、表１を参照しなが
ら、比較例と比較しつつ詳細に説明する。ここで、表１
は、各実施例及び各比較例におけるポリ塩化ビニル系樹
脂の配合と、それぞれの特性を示したものである。
【００２４】
【表１】
【００２５】各実施例のポリ塩化ビニル系繊維は、表１
に示すように、ポリ塩化ビニル系樹脂（大洋塩ビ株式会
社製ＴＨ−１０００）と、塩素化ポリ塩化ビニル樹脂
（塩素含有量６２.０％のものは積水化学工業株式会社
製ＨＡ−１５Ｅ、塩素含有量６６.５％のものは積水化
学工業株式会社製ＨＡ−２４Ｋ、塩素含有量６８.５％
のものは積水化学工業株式会社製ＨＡ−２７Ｌ）と、そ
の他複合安定剤（堺化学工業株式会社製ＬＨＲ−１０
７）を、表１の配合量に従い配合した組成物を、溶融押
出機にて溶融紡糸し、延伸処理工程、熱弛緩処理工程を
経て平均繊度６０デニールに成形して得たものである。
【００２６】本実施例のポリ塩化ビニル系繊維の溶融紡
糸は、ノズル断面積０．０６ｍｍ2、孔数１２０、金型
温度１７５℃の紡糸金型から、押出量１０Ｋｇ／時間で
上記組成物を押出成形し、平均繊度１８０デニールにな
るようにしたものである。また、延伸処理は、溶融紡糸
して得られた繊維を、１０５℃の空気雰囲気下で３００
％まで延伸したものであり、熱弛緩処理は、延伸処理を
行った繊維を、１１０℃の空気雰囲気下で、繊維の全長
が処理前の７５％の長さに収縮するまで熱処理したもの
である。なお、以下に示す比較例は、特に言及しない限
り本実施例と同様のものである。
【００２７】表１中、熱収縮性とは、試験体を熱処理し
た際に発生する熱収縮率を表したものである。熱収縮性
の試験は、長さ１００ｍｍに調整した試験体を、１００
℃のギアオーブン中で１５分間熱処理し、熱処理後にお
ける試験体の長さをＬとしたときの（１００−Ｌ）／１
００の値である。熱収縮率１５％の試験体の配合に、塩
素化ポリ塩化ビニル樹脂を配合することにより熱収縮率
が１２％未満であったものを○、１２％以上であったも
のを×として評価した。なお、試験体数は１０本とし
た。
【００２８】また表１中、紡糸性とは、上記組成物を溶
融紡糸する際の成形性を表したものである。紡糸性の試
験にあっては、紡糸金型から同時に１２０本の繊維状体
を押出成形した際の、糸切れ（溶融押出中に、数本の繊
維状体が途切れる現象）の発生回数を測定したものであ
り、測定中に発生した糸切れの回数が１回以下だったも
のを○、２回以上発生したものを×として評価した。な
お、測定時間は３０分間、測定回数は３回とした。
【００２９】各実施例にあっては、従来の紡糸性を維持
し、熱収縮率を向上させたポリ塩化ビニル系繊維が得ら
れた。
【００３０】比較例１及び比較例２について説明する。
塩素化ポリ塩化ビニル樹脂の塩素含有率があまりに低い
と、熱収縮性を向上させる効果が得られず、あまりに高
いと紡糸性が悪かった。
【００３１】比較例３、比較例４及び比較例５について
説明する。塩素含有率（Ｘ）が５７．０〜６９．０％の
範囲内であっても配合量（Ｙ）が式１を満たさない場合
には、紡糸性が悪かった。
【００３２】比較例６について説明する。塩素含有率が
特定した範囲内であっても、配合量があまりに少ないと
熱収縮性を向上させる効果が得られなかった。
【００３３】
【発明の効果】本発明にあっては、ポリ塩化ビニル系樹
脂と、塩素化ポリ塩化ビニル樹脂を有する組成物を繊維
状に形成したポリ塩化ビニル系繊維において、前記組成
物が、前記ポリ塩化ビニル系樹脂１００重量部、前記塩
素化ポリ塩化ビニル樹脂の塩素含有率（Ｘ）が５７．０
〜６９．０％、該塩素化ポリ塩化ビニル樹脂の配合量
（Ｙ）が特定の式を満たし、これにより、従来の紡糸性
を維持し、熱収縮性を向上させることができた。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vinyl chloride resin fiber used for artificial hair fibers for hair decoration such as wigs, hairpieces, blades, and extension hairs. It is. 2. Description of the Related Art Conventionally, polyvinyl chloride fibers have been known for their strength,
Because of its excellent elongation, transparency, etc., it is used as a fiber for artificial hair and insect repellent net. For example, it is particularly used as a polyvinyl chloride fiber comprising a composition having a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin. The means of Japanese Patent Publication No. 60-18323 is known. [0003] However, the polyvinyl chloride fiber of the above means has poor spinnability due to poor compatibility between the polyvinyl chloride resin and the chlorinated polyvinyl chloride resin. There was a problem that would. In order to solve such a problem, as disclosed in JP-A-10-102317, a composition containing a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin is added to a composition comprising ethylene / vinyl acetate / vinyl graft. It has been proposed to improve spinnability by adding a polymer resin.
However, there is a new problem that the heat shrinkability of the fiber deteriorates as the amount of the ethylene / vinyl acetate / vinyl chloride graft polymer resin increases. Accordingly, an object of the present invention is to provide a conventional polyvinyl chloride resin containing a chlorinated polyvinyl chloride resin in a specific range, thereby maintaining the conventional spinnability and improving the heat shrinkage. An object of the present invention is to provide a vinyl chloride fiber. Means for Solving the Problems The present inventor conducted intensive studies in view of the above, and as a result, formed a composition containing a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin into a fibrous form. In a polyvinyl chloride fiber, the composition is 100 parts by weight of the polyvinyl chloride resin, the chlorine content (X) of the chlorinated polyvinyl chloride resin is 57.0 to 69.0%, It has been found that the compounding amount (Y) of the vinyl chloride resin is within a range satisfying a specific formula, and it has been found that the above-mentioned problems can be solved, thereby completing the present invention. BEST MODE FOR CARRYING OUT THE INVENTION The chlorinated polyvinyl chloride resin used in the present invention is obtained by chlorinating a polyvinyl chloride resin, and the blending amount (Y) is determined by the chlorine content (X). By satisfying Formula 1 described below, the spinnability of the polyvinyl chloride fiber is maintained, and the heat shrinkability is improved. Equation 1 is the following equation. 1.0 ≦ Y ≦ 0.31X 2 −44.923X + 1628 If the chlorine content (X) of the chlorinated polyvinyl chloride resin is too low, the effect of improving heat shrinkage cannot be obtained. If it is too high, the spinnability will be poor, so 57.0-69.0% is good. If the amount of the chlorinated polyvinyl chloride resin is too small, the effect of improving heat shrinkage cannot be obtained, and if it is too large, the spinnability deteriorates. And the above equation 1 according to the chlorine content
The compounding amount that satisfies is good. If the degree of polymerization of the chlorinated polyvinyl chloride resin is too low, the effect of improving heat shrinkage cannot be obtained, and if it is too high, the spinnability deteriorates.
500-1000 is good. The chlorinated polyvinyl chloride resin is a chlorinated polyvinyl chloride resin which is obtained by chlorinating a polyvinyl chloride resin in a bulk, suspension or polymerized by a method particularly advantageous for chlorination by a chlorination method such as a gas phase or a liquid phase. It was made. [0013] The polyvinyl chloride resin used in the present invention is employed as a base polymer of polyvinyl chloride fiber. Here, the average degree of polymerization of the polyvinyl chloride-based resin is not particularly limited, but if it is too low, the melt viscosity decreases and the resulting fiber easily shrinks, and if it is too high, the melt viscosity increases. Since the molding temperature is high and the fiber is colored,
00 is preferred. The polyvinyl chloride resin may be, for example, a conventionally known vinyl chloride homopolymer, a copolymer of vinyl chloride with ethylene, propylene, alkyl vinyl ether, vinylidene chloride, vinyl acetate, acrylic ester, maleic ester or the like. There are copolymers or mixtures thereof. [0015] In the polyvinyl chloride fiber of the present invention, a conventionally known additive used in a vinyl chloride composition may be used according to the purpose, for example, having a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin. Composition ". Examples of additives include lubricants, heat stabilizers, processing aids, reinforcing agents,
There are an ultraviolet absorber, an antioxidant, an antistatic agent, a filler, a flame retardant, a pigment, an initial coloring improving agent, a conductivity imparting agent, a surface treatment agent, a light stabilizer, a fragrance, and the like. The above-mentioned "composition comprising a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin" may be a powder compound mixed using a conventionally known mixer (for example, a Henschel mixer, a ribbon blender, etc.) or the powder compound. It may be a pellet compound obtained by melting and mixing the compound. The powder compound can be produced under conventionally known ordinary conditions, and may be a hot blend or a cold blend. The pellet compound can be produced in the same manner as in the production of an ordinary vinyl chloride pellet compound. Examples of the production machine include kneaders such as a single screw extruder, a different direction twin screw extruder, and a co-kneader. When the above-mentioned "composition comprising a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin" is converted into a fibrous undrawn yarn, a conventionally known extruder can be used. Examples of the extruder include a single screw extruder, a bidirectional twin screw extruder, and a conical twin screw extruder. When the composition is melt-spun in the present invention, the area of one nozzle hole is 0.2 mm 2 or less, and more preferably, the area of one nozzle hole is 0.04 to 0.06 mm 2.
It is desirable to attach the nozzle to the tip of the die. When trying to obtain a thin undrawn yarn of 300 denier or less using a cross-sectional area exceeding 0.2 mm 2 , the draft ratio must be extremely increased, and the frequency of yarn breakage during spinning increases. Not preferred. In the present invention, the fineness of the undrawn yarn is 30
It is preferable to keep it at 0 denier or less. The reason for limiting to this value is that if the size of the undrawn yarn is too large, it is necessary to increase the draw ratio in order to obtain fibers of low size, and the frequency of yarn breakage during drawing sharply increases, and productivity decreases. This is not preferred. The undrawn yarn obtained by the melt spinning is subjected to a drawing treatment in an air atmosphere, and then subjected to a heat relaxation treatment, so that its fineness is reduced to 100 denier or less. The stretching treatment and the heat relaxation treatment may be performed under the conditions disclosed in, for example, JP-A-11-100714. The conditions are that the stretching treatment is performed at a stretching ratio of about 3 to 4.5 times in an atmosphere of 100 to 150 ° C, and the thermal relaxation treatment is performed in an atmosphere of 100 to 150 ° C. The polyvinyl chloride fibers obtained by using the composition of the present invention can be used as artificial hair fibers for hair decoration such as wigs, hairpieces, braids, and extension hairs. EXAMPLES Examples according to the present invention will be described in detail with reference to Table 1 and in comparison with comparative examples. Here, Table 1
Shows the blending of the polyvinyl chloride resin in each example and each comparative example, and the characteristics of each. [Table 1] The polyvinyl chloride fibers of each example are shown in Table 1.
As shown in the figure, a polyvinyl chloride resin (TH-1000 manufactured by Taiyo PVC Co., Ltd.) and a chlorinated polyvinyl chloride resin (having a chlorine content of 62.0% are HA-15E manufactured by Sekisui Chemical Co., Ltd. Those with a content of 66.5% are HA-24K manufactured by Sekisui Chemical Co., Ltd., and a chlorine content of 68.5%.
Are HA-27L manufactured by Sekisui Chemical Co., Ltd. and other compound stabilizers (LHR-10 manufactured by Sakai Chemical Industry Co., Ltd.)
7) was obtained by melt-spinning a composition prepared according to the compounding amounts shown in Table 1 using a melt extruder, and then forming it into an average fineness of 60 denier through a stretching treatment step and a heat relaxation treatment step. In the melt spinning of the polyvinyl chloride fiber of the present embodiment, the above composition was extruded from a spinning mold having a nozzle cross-sectional area of 0.06 mm 2 , 120 holes and a mold temperature of 175 ° C. at an extrusion rate of 10 kg / hour. It is extruded to have an average fineness of 180 denier. The stretching treatment is performed by subjecting the fiber obtained by melt spinning to 105 ° C. in an air atmosphere for 300 minutes.
%, And in the thermal relaxation treatment, the stretched fiber is heat-treated at 110 ° C. in an air atmosphere until the entire length of the fiber shrinks to 75% of the length before the treatment. . The comparative examples described below are the same as the present examples unless otherwise specified. [0027] In Table 1, the term "heat shrinkability" refers to the heat shrinkage generated when a test piece is heat-treated. In the test for heat shrinkability, a test body adjusted to a length of 100 mm
(100-L) / 1 assuming that the length of the test piece after heat treatment is L in a gear oven at 15 ° C. for 15 minutes.
00 value. A sample having a heat shrinkage of less than 12% due to the incorporation of a chlorinated polyvinyl chloride resin into a sample having a heat shrinkage of 15% was evaluated as ○, and a sample having a heat shrinkage of 12% or more was evaluated as ×. The number of test specimens was 10. In Table 1, spinnability refers to the moldability when melt spinning the above composition. In the spinnability test, the number of occurrences of yarn breakage (a phenomenon in which several fibrous bodies are interrupted during melt extrusion) when 120 fibrous bodies are simultaneously extruded from a spinning die is measured. When the number of times of yarn breakage occurred during the measurement was 1 or less, it was evaluated as ○, and when it occurred 2 or more times, it was evaluated as x. The measurement time was 30 minutes and the number of measurements was three. In each of the examples, a polyvinyl chloride fiber having the conventional spinnability and improved heat shrinkage was obtained. Next, Comparative Examples 1 and 2 will be described.
If the chlorine content of the chlorinated polyvinyl chloride resin was too low, the effect of improving the heat shrinkage could not be obtained, and if it was too high, the spinnability was poor. Comparative Examples 3, 4, and 5 will be described. Even when the chlorine content (X) was in the range of 57.0 to 69.0%, when the compounding amount (Y) did not satisfy the formula 1, the spinnability was poor. Next, a comparative example 6 will be described. Even if the chlorine content was within the specified range, the effect of improving the heat shrinkage could not be obtained if the amount was too small. According to the present invention, there is provided a polyvinyl chloride fiber obtained by forming a composition containing a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin into a fibrous form, wherein the composition is: 100 parts by weight of the polyvinyl chloride resin, and the chlorine content (X) of the chlorinated polyvinyl chloride resin is 57.0.
６９69.0%, the blending amount (Y) of the chlorinated polyvinyl chloride resin satisfied a specific formula, whereby the conventional spinnability was maintained and the heat shrinkability was improved.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 茂呂居 昭 神奈川県鎌倉市台２丁目13番１号 東洋化 学株式会社内 Ｆターム(参考） 4J002 BD041 BD051 BD061 BD071 BD081 BD091 BD182 GC00 GK01 4L035 AA05 BB31 BB89 BB91 CC07 DD14 KK05 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Akira Mororo 2-13-1, Daima, Kamakura-shi, Kanagawa Gaku Co., Ltd. F-term (reference) 4J002 BD041 BD051 BD061 BD071 BD081 BD091 BD182 GC00 GK01 4L035 AA05 BB31 BB89 BB91 CC07 DD14 KK05
Claims (1)
化ビニル樹脂を有する組成物を繊維状に形成したポリ塩
化ビニル系繊維において、前記組成物が、前記ポリ塩化
ビニル系樹脂１００重量部、前記塩素化ポリ塩化ビニル
樹脂の塩素含有率（Ｘ）が５７．０〜６９．０％、該塩
素化ポリ塩化ビニル樹脂の配合量（Ｙ）が以下の式１を
満たすことを特徴とするポリ塩化ビニル系繊維。 ＜式１＞１.０≦Ｙ≦０．３１Ｘ2−４４．９２３Ｘ＋１
６２８Claims: 1. A polyvinyl chloride fiber obtained by forming a composition comprising a polyvinyl chloride resin and a chlorinated polyvinyl chloride resin into a fibrous form, wherein the composition comprises the polyvinyl chloride resin. 100 parts by weight of the base resin, the chlorine content (X) of the chlorinated polyvinyl chloride resin is 57.0 to 69.0%, and the blending amount (Y) of the chlorinated polyvinyl chloride resin satisfies the following formula 1. A polyvinyl chloride fiber characterized by the following. <Expression 1> 1.0 ≦ Y ≦ 0.31X 2 −44.923X + 1
628
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