JP3109761B2 - Suede-like artificial leather and manufacturing method thereof - Google Patents
Suede-like artificial leather and manufacturing method thereofInfo
- Publication number
- JP3109761B2 JP3109761B2 JP04092045A JP9204592A JP3109761B2 JP 3109761 B2 JP3109761 B2 JP 3109761B2 JP 04092045 A JP04092045 A JP 04092045A JP 9204592 A JP9204592 A JP 9204592A JP 3109761 B2 JP3109761 B2 JP 3109761B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- ultrafine
- polyamide
- fibers
- suede
- 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.)
- Expired - Fee Related
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、外観は均一性に富み、
柔軟で、寸法安定性の優れたスエ−ド調人工皮革及びそ
の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a suede-like artificial leather having flexibility and excellent dimensional stability, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、ポリアミド極細繊維の不織布と高
分子弾性体からなり、表面がポリアミドの極細繊維の立
毛を有するスエ−ド調人工皮革は公知である。例えば特
公昭42−27271号公報には抽出繊維を用いた不織布に弾
性樹脂を含有せしめて作ったスエ−ド調シ−ト物が記載
されている。近年大幅な市場の拡大により、ポリアミド
極細繊維使用のものはポリエステル極細繊維使用のもの
に比べて、立毛の均一性、触感、ソフト性が評価されて
いる。このスエ−ド調シ−ト物の立毛の均一性、触感の
良さ、ソフト性については、立毛が極細繊維であること
のほかにポリアミド繊維の持つ吸水率の大きさによる所
が大きい。一方、吸水量の多さは、湿度変化による基体
の寸法変化に現れる。成型用途や靴用途等で、原反カッ
ト時の湿度と成型加工や縫製加工時の湿度が違う場合に
は、カットした原反の寸法違いによるトラブルが発生す
る。一方原反の寸法安定性と難燃性の両方を兼ね備えた
物として、裏面に難燃性布帛を張り合わせることが特公
昭62−33353号公報に提案されているが、裏面に布帛を
張ると、どうしてもソフト性に欠ける物となる。2. Description of the Related Art Conventionally, a suede-like artificial leather comprising a nonwoven fabric of polyamide microfibers and a polymer elastic body and having raised surfaces of polyamide microfibers is known. For example, Japanese Patent Publication No. 42-27271 discloses a suede-like sheet made by adding an elastic resin to a non-woven fabric using extracted fibers. Due to the remarkable expansion of the market in recent years, the uniformity, the tactile sensation, and the softness of the nap are evaluated for those using polyamide ultrafine fibers compared to those using polyester ultrafine fibers. The uniformity of the nap of the suede-like sheet, the good touch, and the softness are largely due to the fact that the nap is an ultrafine fiber and the water absorption of polyamide fiber. On the other hand, a large amount of water absorption appears in a dimensional change of the substrate due to a change in humidity. If the humidity at the time of raw material cutting and the humidity at the time of molding or sewing are different for molding use or shoe use, trouble occurs due to a difference in dimensions of the cut raw material. On the other hand, as a material having both dimensional stability and flame retardancy of the raw material, it has been proposed in Japanese Patent Publication No. 62-33353 to bond a flame-retardant fabric to the back surface. However, it is inevitably lacking in softness.
【０００３】[0003]
【発明が解決しようとする課題】本発明はポリアミド極
細繊維を用いることによる、高級感のある外観、風合
い、表面の触感、及び均一性等の特徴を損なうことな
く、従来困難であった湿度変化による寸法安定性に優れ
たスエ−ド調人工皮革及びその製造方法を提供しようと
するものである。SUMMARY OF THE INVENTION The present invention relates to the use of ultrafine polyamide fibers without changing the humidity change which has been conventionally difficult without deteriorating features such as high-grade appearance, texture, surface feel, and uniformity. It is an object of the present invention to provide a suede-like artificial leather excellent in dimensional stability according to the invention and a method for producing the same.
【０００４】[0004]
【課題を解決するための手段】本発明は、単繊維繊度が
0.1デニ−ル以下の極細繊維収束繊維不織布と弾性重合
体とからなり、少なくとも片面に立毛を有するシ−トに
おいて、該極細繊維収束繊維は、ポリアミド極細繊維と
少なくとも一種類の疎水性極細繊維とが断面において混
在しており、かつ該ポリアミド極細繊維と該疎水性極細
繊維の重量比が90：10〜30：70であることを特徴とする
スエ−ド調人工皮革であり、また、単繊維繊度が0.1デ
ニ−ル以下のポリアミド極細繊維と少なくとも一種類の
疎水性極細繊維とが断面において混在しその重量比が9
0：10〜30：70である極細繊維収束繊維に変性し得る極
細繊維発生型繊維を製造する工程、該繊維からなる絡合
不織布を製造する工程、該絡合不織布に弾性重合体液を
付与する工程、該極細繊維発生型繊維を極細繊維収束繊
維に変性する工程、少なくとも一面に立毛を形成する工
程、得られた繊維立毛基体を染色することを特徴とする
スエ−ド調人工皮革の製造方法である。According to the present invention, a single fiber fineness is
In a sheet composed of a nonwoven fabric of ultrafine fiber converging fibers of 0.1 denier or less and an elastic polymer, and having napped on at least one surface, the ultrafine fiber converging fibers are polyamide ultrafine fibers and at least one type of hydrophobic ultrafine fibers. Are mixed in the cross section, and the weight ratio between the polyamide ultrafine fibers and the hydrophobic ultrafine fibers is 90:10 to 30:70. Polyamide ultrafine fibers having a fineness of 0.1 denier or less and at least one type of hydrophobic ultrafine fibers are mixed in the cross section and the weight ratio is 9
A step of producing an ultrafine fiber-generating fiber that can be modified into an ultrafine fiber converging fiber having a ratio of 0:10 to 30:70, a step of producing an entangled nonwoven fabric made of the fiber, and applying an elastic polymer liquid to the entangled nonwoven fabric A process for modifying the microfiber-generating fiber into a microfiber converging fiber, a process for forming nap on at least one surface, and a method for dyeing the obtained fiber nap substrate. It is.
【０００５】本発明のポリアミド極細繊維と疎水性極細
繊維とが混在する極細繊維集束繊維を発生させる極細繊
維発生型繊維は、ポリアミドと疎水性ポリマーを島成分
とし、断面においてこれらの島成分がランダムに混在す
る海島構造を持つ繊維である。島成分の一部を構成する
ポリアミドは、例えば、６−ナイロン、６６−ナイロ
ン、６１０−ナイロン、１１−ナイロン、１２−ナイロ
ン、２６−ナイロン、２１０−ナイロン、４１０−ナイ
ロン、７６−ナイロン、その他芳香環を有する可紡性ポ
リアミドから選ばれた少なくとも１種類のポリアミドで
あり、もう一方の島成分である疎水性繊維に使用するポ
リマ−は、公定水分率が１％以下のものであればよく、
例えば、ポリエステル、ポリ塩化ビニル、ポリ塩化ビニ
リデン、ポリプロピレン、ポリエチレン、ポリスチレン
から選ばれた少なくとも一種類である。海成分を構成す
るポリマ−は、ポリアミドと疎水性ポリマーと溶剤に対
する溶解性を異にし、親和性の小さいポリマ−であっ
て、かつ紡糸条件下でポリアミドおよび疎水性ポリマー
より溶融粘度あるいは表面張力の小さいポリマ−であ
り、例えばポリエチレン、ポリプロピレン、エチレンプ
ロピレン共重合体、エチレン酢酸ビニル共重合体、ポリ
スチレン、スチレンアクリル共重合体、スチレンエチレ
ン共重合体などのポリマ−から選ばれた少なくとも一種
類のポリマ−である。[0005] The ultrafine fiber-generating fiber of the present invention for producing ultrafine fiber bundles in which a polyamide ultrafine fiber and a hydrophobic ultrafine fiber are mixed has a polyamide and a hydrophobic polymer as island components, and these island components are random in the cross section. It is a fiber with a sea-island structure mixed in. The polyamide constituting a part of the island component is, for example, 6-nylon, 66-nylon, 610-nylon, 11-nylon, 12-nylon, 26-nylon, 210-nylon, 410-nylon, 76-nylon, and others. At least one kind of polyamide selected from spinnable polyamides having an aromatic ring, and the polymer used for the hydrophobic fiber as the other island component may be any one as long as the official moisture regain is 1% or less. ,
For example, it is at least one selected from polyester, polyvinyl chloride, polyvinylidene chloride, polypropylene, polyethylene, and polystyrene. The polymer constituting the sea component is a polymer having a low affinity for polyamide, a hydrophobic polymer and a solvent having a different solubility, and has a lower melt viscosity or surface tension than a polyamide and a hydrophobic polymer under spinning conditions. A small polymer, for example, at least one polymer selected from polymers such as polyethylene, polypropylene, ethylene propylene copolymer, ethylene vinyl acetate copolymer, polystyrene, styrene acrylic copolymer, styrene ethylene copolymer, etc. -.
【０００６】このような極細繊維発生型繊維は、島成分
のポリアミド及び疎水性ポリマーと海成分のポリマ−の
チップを所定の混合比率で混合して、同一混合系で溶融
し、紡糸口金部で繊維形状を規定して紡糸する方法にて
得られる。極細繊維に用いるポリアミドと疎水性ポリマ
ーの重量比は、90：10〜30：70の範囲、好ましくは80：
20〜50：50である。ポリアミドの比率が90％以上になる
と、湿度変化による形態変化が大きすぎ、逆に30％以下
になると、ポリアミドの持つウエット感などの風合いに
劣るものとなるとともに、ポリアミドだけの染色では発
色性が不十分となる。また、極細繊維発生型繊維の島成
分は断面において混在している必要がある。ここで、断
面において混在するとは、ポリアミド極細繊維と疎水性
極細繊維とが局部的に偏在することなく、断面全体にお
いて両極細繊維がほぼ均一に混合しあっている状態をい
う。ポリアミド極細繊維と疎水性極細繊維が偏在した状
態の場合、風合いや外観に悪影響を及ぼし、また、染色
したときポリアミド極細繊維と疎水性極細繊維が異色に
なった場合には斑となり品質低下をおこす。また、極細
繊維収束繊維中でポリアミド極細繊維と疎水性極細繊維
とは規則的に並んでいるよりもランダムに混在している
ほうが異色感が少なく自然な感じが得られる。このよう
な極細繊維発生型繊維は各成分を同一混合系で溶融し紡
糸することにより達せられる。各極細繊維の単繊維繊度
は0.1デニ−ル以下、望ましくは0.1デニ−ル〜0.002デ
ニ−ルが良い。単繊維繊度が0.1デニ−ル以上になると
スエ−ド調人工皮革の外観は劣り、風合いの硬い物とな
り、極細繊維の混在が目立つようになり、一方0.002デ
ニ−ル以下になると、極細繊維の繊維が細すぎて発色性
の劣る物となる。[0006] Such an ultrafine fiber-generating fiber is prepared by mixing a chip of a polyamide and a hydrophobic polymer of an island component with a polymer of a sea component at a predetermined mixing ratio, melting them in the same mixed system, and then forming a mixture in a spinneret. It is obtained by a method of defining the fiber shape and spinning. The weight ratio between the polyamide and the hydrophobic polymer used for the ultrafine fibers is in the range of 90:10 to 30:70, preferably 80:30.
20 to 50:50. When the polyamide ratio is 90% or more, the morphological change due to humidity change is too large, and when it is 30% or less, the texture such as wet feeling of polyamide is inferior, and the coloring property only by polyamide dyeing is poor. Will be insufficient. Further, the island components of the ultrafine fiber-generating fibers need to be mixed in the cross section. Here, “mixed in the cross section” means a state in which the polyamide microfine fibers and the hydrophobic microfine fibers are not locally localized, and the microfine fibers are almost uniformly mixed in the entire cross section. When the polyamide ultrafine fibers and the hydrophobic ultrafine fibers are unevenly distributed, the texture and appearance are adversely affected. . Also, when the polyamide ultrafine fibers and the hydrophobic ultrafine fibers are randomly mixed in the ultrafine fiber converging fibers, they are less unnatural and a natural feeling can be obtained than when they are regularly arranged. Such an ultrafine fiber-generating fiber can be obtained by melting and spinning each component in the same mixed system. The fineness of the single fiber of each ultrafine fiber is 0.1 denier or less, and preferably 0.1 denier to 0.002 denier. When the monofilament fineness is 0.1 denier or more, the appearance of the suede-like artificial leather is inferior, the texture becomes hard, and the mixture of ultrafine fibers becomes conspicuous. The fibers are too thin, resulting in poor coloring.
【０００７】極細繊維発生型繊維は、必要に応じて延
伸、熱固定、カットなどの処理工程をへて、繊度１〜15
デニ−ルの繊維とする。繊維はカ−ドで解繊し、ウエバ
−を通してランダムウエブまたはクロスラップウエブを
形成し、所望の重さ、厚さに積層する。ついで公知の方
法にてニ−ドルパンチあるいは水流絡合処理を行い、絡
合不織布とする。[0007] If necessary, the ultrafine fiber-generating fiber may be subjected to processing steps such as drawing, heat setting, and cutting to obtain a fineness of 1-15%.
Denier fiber. The fibers are defibrated with a card, formed into a random web or a cross wrap web through a web, and laminated to a desired weight and thickness. Next, a needle punch or a water entanglement treatment is performed by a known method to obtain an entangled nonwoven fabric.
【０００８】次に繊維絡合不織布に弾性重合体液を含
浸、凝固する。繊維絡合不織布に含浸する弾性重合体液
は、ポリウレタンを主体とする弾性重合体の溶液あるい
は分散液である。含浸に用いるポリウレタンとしては、
例えば平均分子量500〜3000のポリエステルジオ−ル、
ポリエステルジオ−ル、ポリエステルエ−テルジオ−
ル、ポリラクトンジオ−ル、ポリカ−ボネ−トジオ−
ル、などから選ばれた少なくとも１種類のポリマ−ジオ
−ルとトリレンジイソシアネ−ト、キシリレンジイソシ
アナ−ト、フェニレンジイソシアナ−ト、４、４’−ジ
フェニ−ルメタンジイソシアネ−ト、４、４’−ジシク
ロヘキシルメメタンジイソシアネ−ト、イソホロンジイ
ソシアネ−ト、ヘキサメチレンジイソシアネ−ト、など
芳香族系、脂環族系、脂環族系の有機ジイソシアネ−ト
と、ジオ−ル、ジアミン、ヒドロキシアミン、ヒドラジ
ン、ヒドラジド等の活性水素原子を少なくとも２個有す
る低分子化合物から選ばれた少なくとも１種類の鎖伸長
剤とを所定のモル比で反応させて得たポリウレタンであ
る。ポリウレタンには必要に応じて、合成ゴム、ポリエ
ステルエラストマ−、ポリ塩化ビニルなどの重合体を添
加して使用しても良い。弾性重合体液には、必要により
更に着色剤、凝固調節剤、離型剤、可塑剤、安定剤、酸
化防止剤、耐光安定剤、などから選ばれた添加剤を配合
して含浸用の重合体組成液とする。Next, the fiber entangled nonwoven fabric is impregnated with the elastic polymer liquid and solidified. The elastic polymer liquid impregnated in the fiber entangled nonwoven fabric is a solution or dispersion of an elastic polymer mainly composed of polyurethane. As the polyurethane used for impregnation,
For example, polyester diol having an average molecular weight of 500 to 3000,
Polyester diol, polyester ether-
, Polylactone diol, polycarbonate-
And at least one polymer diol selected from the group consisting of tolylene diisocyanate, xylylene diisocyanate, phenylene diisocyanate, and 4,4'-diphenylmethane diisocyanate. -, 4,4'-dicyclohexyl methanediisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, etc., aromatic, alicyclic and alicyclic organic diisocyanates And at least one type of chain extender selected from low molecular compounds having at least two active hydrogen atoms such as diol, diamine, hydroxyamine, hydrazine, and hydrazide in a predetermined molar ratio. Polyurethane. If necessary, a polymer such as synthetic rubber, polyester elastomer, or polyvinyl chloride may be added to the polyurethane. The polymer for impregnation may be further blended with an additive selected from a colorant, a coagulation regulator, a mold release agent, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, and the like, if necessary. Make it a composition liquid.
【０００９】前記繊維絡合不織布に上記含浸用の組成液
を含浸し、重合体の非溶剤で処理し湿式凝固し、必要に
応じて洗浄し、乾燥する。次に、極細繊維発生型繊維の
島成分であるポリアミドと疎水性繊維及び基体に含浸さ
れた弾性重合体に対しては非溶剤であり、かつ極細繊維
発生型繊維の海成分に対しては溶剤または分解剤である
処理液で処理することにより、極細繊維発生型繊維をポ
リアミド極細繊維と疎水性極細繊維が混在した極細繊維
収束繊維に変性し、極細繊維絡合不織布とポリウレタン
を主体とした重合体からなる繊維質基体とする。[0009] The fiber entangled nonwoven fabric is impregnated with the above impregnating composition solution, treated with a polymer non-solvent, wet-coagulated, washed and dried if necessary. Next, it is non-solvent for polyamide, hydrophobic fiber and elastic polymer impregnated in the substrate, which is an island component of microfiber-generating fiber, and solvent for sea component of microfiber-generating fiber. Alternatively, by processing with a processing solution that is a decomposing agent, the ultrafine fiber-generating fibers are modified into ultrafine fiber converging fibers in which polyamide ultrafine fibers and hydrophobic ultrafine fibers are mixed, and the ultrafine fiber entangled nonwoven fabric and a polyurethane-based heavy fiber are mainly used. It is a fibrous substrate made of united.
【００１０】次に繊維質基体は少なくとも一面に極細繊
維を主体とした繊維立毛面を形成させる。繊維立毛を形
成させる方法は、サンドペ−パ−によるバフィング、針
布起毛等既存の起毛方法をとれば良い。ついで、得られ
たスエ−ド調繊維質基体を染色するが、染色は酸性染
料、含金錯塩染料、などでポリアミド極細繊維とポリウ
レタンを染色するか、必要により疎水性繊維を別途追加
染色を行う。染色したスエ−ド調繊維質基体は、揉み、
柔軟化処理、ブラッシングなどの仕上げ処理を行い、ス
エ−ド調人工皮革の製品とする。本発明で得られるスエ
−ド調人工皮革は、外観、風合い、表面の感触、及び毛
羽の均一性が極めて良好で、湿度変化による寸法安定性
に優れたもので、衣料用、靴用、インテリヤ用に好適で
ある。Next, at least one surface of the fibrous substrate is formed with a fiber raised surface mainly composed of ultrafine fibers. As a method for forming the fiber nap, an existing napping method such as buffing with sandpaper, napping or the like may be used. Next, the obtained suede-like fibrous base material is dyed. The dyeing is performed by dyeing the polyamide ultrafine fiber and polyurethane with an acid dye, a gold-containing complex dye, or the like, or additionally dyeing a hydrophobic fiber as necessary. . The dyed suede-like fibrous substrate is rubbed,
Finishing treatment such as softening and brushing is performed to produce suede-like artificial leather. The suede-like artificial leather obtained by the present invention has excellent appearance, texture, surface feel, and uniformity of fluff, and excellent dimensional stability due to humidity change, and is suitable for clothing, shoes, and interior. It is suitable for use.
【００１１】[0011]
【実施例】次に本発明の実施を具体的に実施例で説明す
るが、本発明はこれらの実施例に限定されるものでな
い。尚、実施例中の部及び％は断りのない限り、重量に
関する物である。EXAMPLES Next, the practice of the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples. The parts and percentages in the examples relate to weight unless otherwise specified.
【００１２】（実施例１）６−ナイロンチップ25部、ポ
リエステルチップ２５部及びポリエチレンチップ50部を
混合し、紡糸ノズル温度290℃、巻取速度1000ｍ／分で
紡糸して繊度10デニ−ル、伸度405％、強度0.62ｇ／dr
の極細繊維発生型繊維の未延伸繊維を得、さらに2.5倍
に延伸した。この繊維の断面を観察すると、極細繊維成
分となる島成分の平均本数は、約350本でありポリアミ
ドとポリエステルの島成分はランダムに混在した状態で
あった。この繊維に機械捲縮を付与し、繊維長51mmに切
断し、カ−ドで解繊し、クロスラッパ−でウエブとし
た。次いでニ−ドルパンチを行い目付600ｇ／m2の繊維
絡合不織布を得た。この繊維絡合不織布にポリエ−テル
系ポリウレタンを主体とするポリウレタン組成物13部、
Ｎ，Ｎ´−ジメチルホルムアミド（以下ＤＭＦとする）
87部の組成液を含浸し、ＤＭＦの30％水溶液中で凝固
し、水洗してＤＭＦを除去した。ついでパ−クレンで処
理して、極細繊維発生型繊維のポリエチレンを除去する
と、６−ナイロンの極細繊維とポリエステル極細繊維が
混在した極細繊維収束繊維（平均単繊度0.006デニ−
ル、収束本数約350本）とポリウレタンとからなる厚さ
1.2mmの繊維質基体を得た。繊維質基体をスライスして
二分割し、スライス面をサンドペ−パ−でバフィング
し、厚さ0.55mmに厚み合わせを行った後、他の面を、粒
度＃400のサンドペ−パ−でバフ機を用いて起毛処理を
施し、１：２型含金錯塩染料で次の条件にて茶色に染色
した。 染色条件 ラニ−ル ブラウン ＧＲ（住友化学製） ｏｗｆ ４％ レベラン ＮＫ−Ｄ １ｇ／ｌ 染色温度 ９５℃ 染色処理後、乾燥し、揉み、整毛処理を行うことによ
り、表面毛羽は均一発色し、表面の触感のよい、風合い
が良好でかつ湿度変化による寸法安定性に優れた茶色の
スエ−ド調人工皮革が得られた。Example 1 25 parts of 6-nylon chips, 25 parts of polyester chips and 50 parts of polyethylene chips were mixed and spun at a spinning nozzle temperature of 290 ° C. and a winding speed of 1000 m / min to obtain a fineness of 10 denier. Elongation 405%, strength 0.62g / dr
Of the ultrafine fiber-generating fiber of the above was obtained and further stretched 2.5 times. When the cross section of this fiber was observed, the average number of island components serving as ultrafine fiber components was about 350, and the island components of polyamide and polyester were in a state of being randomly mixed. This fiber was mechanically crimped, cut into a fiber length of 51 mm, defibrated with a card, and made into a web with a cross wrapper. Next, needle punching was performed to obtain a fiber entangled nonwoven fabric having a basis weight of 600 g / m 2 . 13 parts of a polyurethane composition mainly composed of a polyether-based polyurethane in this fiber entangled nonwoven fabric,
N, N'-dimethylformamide (hereinafter referred to as DMF)
87 parts of the composition was impregnated, coagulated in a 30% aqueous solution of DMF, and washed with water to remove DMF. Then, the fiber was treated with parken to remove the ultrafine fiber-generating fiber polyethylene.
Thickness, about 350 convergence lines) and polyurethane
A 1.2 mm fibrous substrate was obtained. The fibrous base material is sliced and divided into two parts, the sliced surface is buffed with sandpaper, and the thickness is adjusted to 0.55 mm, and the other surface is buffed with sandpaper having a grain size of # 400. , And dyed brown with a 1: 2 type gold-containing complex dye under the following conditions. Dyeing conditions Lanyl Brown GR (Sumitomo Chemical Co., Ltd.) owf 4% Leveran NK-D 1 g / l Dyeing temperature 95 ° C. A brown suede-like artificial leather having a good surface feel, good texture, and excellent dimensional stability due to changes in humidity was obtained.
【００１３】（比較例１）６−ナイロンチップ50部、ポ
リエチレンチップ50部を溶融混合紡糸することにより、
繊度10デニ−ルの極細繊維発生型繊維の未延伸繊維を
得、さらに2.5倍に延伸した。この繊維の断面を観察す
ると、島成分の平均本数は約350本であった。この繊維
を用いて実施例１と同じ方法にて捲縮以降スエード調人
工皮革に加工したところ、表面毛羽は均一発色し、表面
の触感のよい、風合いの良好な茶色のスエ−ド調人工皮
革が得られたが、湿度変化によるシ−トの寸法変化の大
きいものであった。(Comparative Example 1) By melt-mixing and spinning 50 parts of 6-nylon chips and 50 parts of polyethylene chips,
An undrawn fiber of an ultrafine fiber-generating fiber having a fineness of 10 denier was obtained and further drawn 2.5 times. When the cross section of this fiber was observed, the average number of island components was about 350. When this fiber was used to produce a suede-like artificial leather after crimping in the same manner as in Example 1, the surface fluff was uniformly colored, the surface had a good tactile feel, and the texture was good. Was obtained, but the dimensional change of the sheet due to the change in humidity was large.
【００１４】（比較例２）ポリエステルチップ50部及び
ポリエチレンチップ50部を溶融混合紡糸することによ
り、繊度10デニ−ルの極細繊維発生型繊維を得た。この
繊維の断面を観察すると、島成分の平均本数は約300本
であった。この繊維を用い実施例１と同じ方法にて染色
前の立毛繊維質基材を得た。このものを分散染料にて次
の条件にて茶色に染色した。 染色条件 スミカロン ブラウン Ｓ−３ＲＦ ｏｗｆ ４％ スミポンＴＦ １ｇ／ｌ 染色温度 １３０℃ 染色処理後、乾燥し、揉み、整毛処理を行うことによ
り、茶色のスエ−ド調人工皮革を得た。この物は、湿度
変化によるシ−トの寸法変化は小さいが、表面の触感は
ドライでざらつきがあり、風合いの硬い物であった。Comparative Example 2 50 parts of a polyester chip and 50 parts of a polyethylene chip were melt-mixed and spun to obtain an ultrafine fiber-generating fiber having a fineness of 10 denier. When the cross section of this fiber was observed, the average number of island components was about 300. Using this fiber, a nap fibrous base material before dyeing was obtained in the same manner as in Example 1. This was dyed brown with a disperse dye under the following conditions. Dyeing conditions Sumicaron Brown S-3RF owf 4% Sumipon TF 1 g / l Dyeing temperature 130 ° C. After dyeing treatment, drying, rubbing and hair-styling were performed to obtain brown suede-like artificial leather. This product had a small dimensional change of the sheet due to a change in humidity, but had a dry, rough surface and a hard texture.
【００１５】（比較例３）比較例１で得られた捲縮、カ
ット後のナイロンが島成分の混合紡糸繊維の綿50部と、
比較例２で得られた捲縮、カット後のポリエステルが島
成分の混合紡糸繊維の綿50部を混綿し、実施例１と同じ
処理にて、茶色のスエ−ド調人工皮革を得たが、外観は
未染色のポリエステルの繊維が蜘蛛の巣状に発生した不
均一で風合いも斑状に硬く、表面の触感も悪い物となっ
た。(Comparative Example 3) 50 parts of cotton of the mixed spun fiber having the island component of nylon after crimping and cutting obtained in Comparative Example 1,
The crimped and cut polyester obtained in Comparative Example 2 was mixed with 50 parts of cotton of a mixed spun fiber having an island component, and a brown suede-like artificial leather was obtained by the same treatment as in Example 1. The appearance was non-uniform in that undyed polyester fibers were generated in a spider web shape, the texture was hard and the texture was poor, and the surface texture was poor.
【００１６】[0016]
【表１】 注１） 湿度変化による寸法変化は、20℃、65％ＲＨ雰
囲気中での寸法に対する25℃、90％ＲＨ雰囲気中での寸
法の伸び率（％）で示した。[Table 1] Note 1) The dimensional change due to the humidity change is shown by the elongation (%) of the dimension in a 25 ° C, 90% RH atmosphere with respect to the dimension in a 20 ° C, 65% RH atmosphere.
【００１７】[0017]
【発明の効果】本発明により得られたスエ−ド調人工皮
革は、表面の均一性、触感、風合いに優れ、かつ湿度変
化による寸法変化の少ないものであり、衣料に仕立てた
場合は形態安定性に優れた物となり、また成型処理品に
ついては、加工工程の寸法が安定しているため、精度の
良い製品がえられ、衣料、成型品はもとより、インテリ
ヤ、袋物、各種手袋などに好適である。The artificial leather with suede tone obtained according to the present invention has excellent surface uniformity, tactile sensation, and texture, and has little dimensional change due to humidity change, and is stable when made into clothing. For molded products, the dimensions of the processing process are stable, so accurate products can be obtained, suitable for clothing, molded products, but also for interiors, bags, various gloves, etc. is there.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) D06N 3/00 - 3/18 B32B 5/02 B32B 27/12 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) D06N 3/00-3/18 B32B 5/02 B32B 27/12
Claims (2)
維収束繊維不織布と弾性重合体とからなり、少なくとも
片面に立毛を有するシ−トにおいて、該極細繊維収束繊
維は、ポリアミド極細繊維と少なくとも一種類の疎水性
極細繊維とが断面において混在しており、かつ該ポリア
ミド極細繊維と該疎水性極細繊維の重量比が90：10〜3
0：70であることを特徴とするスエ−ド調人工皮革。1. A sheet comprising a nonwoven fabric of ultrafine fiber convergence fibers having a single fiber fineness of 0.1 denier or less and an elastic polymer, and having at least one surface having naps, wherein the ultrafine fiber convergence fibers are made of polyamide ultrafine fibers. At least one kind of hydrophobic microfiber is mixed in cross section, and the weight ratio of the polyamide microfiber to the hydrophobic microfiber is 90:10 to 3
A suede-like artificial leather characterized by the ratio of 0:70.
ミド極細繊維と少なくとも一種類の疎水性極細繊維とが
断面において混在しておりその重量比が90：10〜30：70
である極細繊維収束繊維に変性し得る極細繊維発生型繊
維を製造する工程、該繊維からなる絡合不織布を製造す
る工程、該絡合不織布に弾性重合体液を付与する工程、
該極細繊維発生型繊維を極細繊維収束繊維に変性する工
程、少なくとも一面に立毛を形成する工程、得られた繊
維立毛基体を染色することを特徴とするスエ−ド調人工
皮革の製造方法。2. A polyamide ultrafine fiber having a single fiber fineness of 0.1 denier or less and at least one kind of hydrophobic ultrafine fiber are mixed in a cross section, and the weight ratio is 90:10 to 30:70.
A step of producing an ultrafine fiber-generating fiber that can be modified into an ultrafine fiber converging fiber, a step of producing an entangled nonwoven fabric made of the fiber, a step of applying an elastic polymer liquid to the entangled nonwoven fabric,
A process for producing a suede-like artificial leather, which comprises a step of modifying the ultrafine fiber-generating fiber into an ultrafine fiber converging fiber, a step of forming nap on at least one surface, and dyeing the obtained fiber nap substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04092045A JP3109761B2 (en) | 1992-03-17 | 1992-03-17 | Suede-like artificial leather and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04092045A JP3109761B2 (en) | 1992-03-17 | 1992-03-17 | Suede-like artificial leather and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05272069A JPH05272069A (en) | 1993-10-19 |
| JP3109761B2 true JP3109761B2 (en) | 2000-11-20 |
Family
ID=14043553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04092045A Expired - Fee Related JP3109761B2 (en) | 1992-03-17 | 1992-03-17 | Suede-like artificial leather and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3109761B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6053906B1 (en) * | 2015-12-14 | 2016-12-27 | 株式会社Ｌｏｕｖｒｅｄｏ | Hair Dryer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4664135B2 (en) * | 2005-07-08 | 2011-04-06 | 大京化学株式会社 | Suede-like artificial leather with excellent flame retardancy and method for producing the same |
-
1992
- 1992-03-17 JP JP04092045A patent/JP3109761B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6053906B1 (en) * | 2015-12-14 | 2016-12-27 | 株式会社Ｌｏｕｖｒｅｄｏ | Hair Dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05272069A (en) | 1993-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4212787B2 (en) | Leather-like sheet | |
| US6733859B2 (en) | Napped leather-like sheet material and method of producing same | |
| KR20010015096A (en) | Fibrous substrate for artificial leather and artificial leather using the same | |
| CN1322198C (en) | Leather-like sheets and method for producing them | |
| JP3366504B2 (en) | Flexible artificial nubuck leather and manufacturing method thereof | |
| JP3109761B2 (en) | Suede-like artificial leather and manufacturing method thereof | |
| JP3537552B2 (en) | Black-colored suede-like artificial leather with little stuffiness | |
| JP3215739B2 (en) | Brushing method of microfiber sheet | |
| JP3410577B2 (en) | Suede-like artificial leather and manufacturing method thereof | |
| JPH0525781A (en) | Leathery napped sheetlike material excellent in resistance to deterioration by perspiration | |
| TWI342351B (en) | Leather-like sheet and production method thereof | |
| JP3109764B2 (en) | Fiber napped sheet | |
| JP2882645B2 (en) | Dyeing method for polyamide fiber nap suede | |
| JP3090749B2 (en) | Suede-like artificial leather | |
| JPH09250063A (en) | Napped sheet and its production | |
| JP4459426B2 (en) | Standing fur leather-like sheet and manufacturing method thereof | |
| JP3254267B2 (en) | Method for producing fiber napped sheet | |
| JP3132780B2 (en) | Fiber napping sheet for golf gloves | |
| JP3043058B2 (en) | Flexible fibrous sheet and polyurethane-based multicomponent fiber suitable for its production | |
| JP2003171884A (en) | Leather like sheet | |
| JPH03227461A (en) | Fiber-raised sheet-like material and preparation thereof | |
| JP2004360086A (en) | Pile sheet-like article and method for producing the same | |
| JPH0450416B2 (en) | ||
| JPH11269775A (en) | Suede-like artificial leather and its production | |
| JPS60155779A (en) | Preparation of flexible sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070914 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080914 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080914 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090914 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |