JPH06240584A - Artificial leather having grain surface and composed of base material containing polyester fiber and production of the leather - Google Patents
Artificial leather having grain surface and composed of base material containing polyester fiber and production of the leatherInfo
- Publication number
- JPH06240584A JPH06240584A JP2664493A JP2664493A JPH06240584A JP H06240584 A JPH06240584 A JP H06240584A JP 2664493 A JP2664493 A JP 2664493A JP 2664493 A JP2664493 A JP 2664493A JP H06240584 A JPH06240584 A JP H06240584A
- Authority
- JP
- Japan
- Prior art keywords
- artificial leather
- fiber
- polymer
- silver
- core
- 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
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ポリエチレンテレフタ
レート系複合繊維を含む繊維質基材とポリウレタン系ポ
リマーを主体とした被覆層とからなる銀付き調人工皮革
において、柔軟で熱セット性が良好でありしかも銀面表
面白化および曇りのない人工皮革およびその製造方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a silver-like artificial leather comprising a fibrous base material containing polyethylene terephthalate-based composite fibers and a coating layer mainly composed of a polyurethane-based polymer, which is soft and has good heat setting property. The present invention relates to an artificial leather which is free from whitening and clouding on the silver surface and a method for producing the same.
【０００２】[0002]
【従来の技術】従来ポリエチレンテレフタレート系繊維
は、そのすぐれたヒートセット性、高い強力、低コス
ト、といった特徴のために人工皮革の繊維質基材として
使用されて来た。しかし、銀付き調人工皮革の繊維質基
材として使用した場合、ナイロン系繊維と比較して風合
いが硬い、ドライタッチである、等の問題がある。ま
た、数カ月〜１年の自然放置によりポリエチレンテレフ
タレートオリゴマーが銀面表面で結晶化し表面全体が白
く曇って外観を悪化させるという問題があった。2. Description of the Related Art Conventionally, polyethylene terephthalate fiber has been used as a fibrous base material for artificial leather because of its excellent heat setting property, high tenacity and low cost. However, when it is used as a fibrous base material of a silver-tone artificial leather, there are problems such as a hard texture and a dry touch as compared with nylon fibers. In addition, there is a problem that the polyethylene terephthalate oligomer is crystallized on the surface of the silver surface by being left to stand for several months to one year, and the entire surface is clouded white to deteriorate the appearance.
【０００３】ポリエチレンテレフタレート系繊維質基材
を使用して基材の風合いを改良する方法としては、特公
昭５９−５３３８８号公報等に記載の潜在的自発伸長性
を有する高収縮ポリエステル繊維を使用する方法、特公
昭４８−５８８６号公報、特公昭４８−３７８０１号公
報等に記載の収縮繊維と非収縮繊維を混綿する方法、特
公昭５２−３０６２８号公報、特公昭５６−３１３８０
号公報等記載の分割タイプ複合繊維を使用する方法、特
公昭５４−９６３号公報、特公昭４９−４０９２１号公
報等記載の多島型海島複合繊維から海成分を除去し極細
繊維束として使用する方法等が提案されている。As a method for improving the texture of a base material using a polyethylene terephthalate type fibrous base material, a highly shrinkable polyester fiber having a latent spontaneous elongation described in JP-B-59-53388 is used. Japanese Patent Publication No. 48-5886, Japanese Patent Publication No. 48-37801 and other methods for mixing shrinkable fibers and non-shrinkable fibers, Japanese Patent Publication No. 52-30628 and Japanese Patent Publication No. 56-31380.
The method of using split type conjugate fibers described in Japanese Patent Publication No. 54-963, Japanese Patent Publication No. 54-963, Japanese Patent Publication No. 49-40921, etc., is used as an ultrafine fiber bundle by removing sea components from the multi-island sea island composite fibers. Methods etc. have been proposed.
【０００４】銀面表面の曇りを改良する方法としては、
特公昭６３−２０９４７号公報にポリエステル繊維中の
オリゴマー含有率を０．３％以下にする方法が提案され
ている。As a method for improving the fog on the silver surface,
Japanese Patent Publication No. 63-20947 proposes a method in which the content of oligomers in a polyester fiber is 0.3% or less.
【０００５】[0005]
【発明が解決しようとする課題】従来の混綿および分割
タイプ複合繊維を繊維質基材に使用する方法では、ポリ
エチレンテレフタレート系繊維特有のドライタッチ感お
よび銀面表面の曇りを改良することは困難であった。ま
た、多島型海島複合繊維を使用する方法およびポリエス
テル繊維中のオリゴマー含有率を０．３％以下にする方
法は溶剤抽出等の特殊処理が必要であり、製造工程が複
雑になる、コストが高くなる等の問題があった。It is difficult to improve the dry touch feeling and the haze on the silver surface, which are peculiar to polyethylene terephthalate fibers, by the conventional method of using the mixed cotton and split type conjugate fibers as the fibrous base material. there were. Further, the method of using the multi-island sea-island composite fiber and the method of reducing the oligomer content in the polyester fiber to 0.3% or less require special treatment such as solvent extraction, which complicates the manufacturing process and reduces the cost. There was a problem such as getting expensive.
【０００６】本発明の目的は、ポリエチレンテレフタレ
ート系繊維の特徴を生かしつつ、風合いが柔軟でタッチ
感が良好であり、少なくとも２年以上銀面表面に曇りが
発生しない銀付き調人工皮革を提供することにある。An object of the present invention is to provide a silver-like artificial leather which has the characteristics of polyethylene terephthalate fiber, has a soft texture and a good touch feeling, and has no fog on the silver surface for at least 2 years. Especially.
【０００７】[0007]
【課題を解決するための手段】本発明はポリエチレンテ
レフタレート系繊維を含む繊維質基材層とポリウレタン
系ポリマーを主体とする被覆層とからなる銀付き調人工
皮革を製造するに際し、繊維質基材として、芯成分がポ
リエチレンテレフタレート系ポリマーを主体とし、鞘成
分がポリアミド系ポリマーを主体とする芯鞘型複合繊維
を使用する事を特徴とする。DISCLOSURE OF THE INVENTION The present invention relates to the production of a silver-like artificial leather comprising a fibrous base material layer containing polyethylene terephthalate fibers and a coating layer mainly composed of a polyurethane polymer. As the core component, a core-sheath type composite fiber whose main component is a polyethylene terephthalate-based polymer and whose sheath component is mainly a polyamide-based polymer is used.
【０００８】また、本発明は、芯鞘複合繊維を含む繊維
不織布を熱水または水蒸気で処理し面積で１５〜５０％
収縮させたのちポリウレタン系ポリマーで処理すること
を特徴とする銀付き調人工皮革の製造方法である。In the present invention, a fibrous nonwoven fabric containing core-sheath composite fibers is treated with hot water or steam to obtain an area of 15 to 50%.
A method for producing a silver-tone artificial leather, which comprises shrinking and then treating with a polyurethane polymer.
【０００９】また、本発明は、収縮繊維として、温水可
溶性ポリビニルアルコール系繊維を１０〜３０％含む不
織布を熱水または水蒸気で処理し面積で１５〜５０％収
縮させたのち、ポリウレタン系ポリマーを付与し、その
後水溶性ポリビニルアルコールを除去することを特徴と
する銀付き調人工皮革の製造方法である。Further, in the present invention, as the shrinkable fiber, a nonwoven fabric containing 10 to 30% of hot water-soluble polyvinyl alcohol fiber is treated with hot water or steam to shrink the area by 15 to 50%, and then a polyurethane polymer is applied. Then, the water-soluble polyvinyl alcohol is removed thereafter, which is a method for producing a silver-finished artificial leather.
【００１０】また、本発明は、芯成分であるポリエチレ
ンテレフタレート系ポリマーを鞘成分であるポリアミド
系ポリマーが完全に包み込んだ実質的に同心芯鞘状複合
繊維を繊維質基材として含むことを特徴とする銀付き調
人工皮革である。Further, the present invention is characterized in that it comprises, as a fibrous base material, substantially concentric core-sheath composite fibers in which a polyethylene terephthalate polymer as a core component is completely wrapped with a polyamide polymer as a sheath component. It is an artificial leather with a silver tone.
【００１１】本発明で使用するポリエチレンテレフタレ
ート系ポリマーは、ポリエチレンテレフタレート、イソ
フタル酸変成ポリエチレンテレフタレート、５−ソジウ
ムスルホイソフタル酸変成ポリエチレンテレフタレー
ト、ブチレン変成ポリエチレンテレフタレートなどの樹
脂であり、紡糸性、ヒートセット性、物性等の点からポ
リエチレンテレフタレートが特に好ましい。The polyethylene terephthalate polymer used in the present invention is a resin such as polyethylene terephthalate, isophthalic acid modified polyethylene terephthalate, 5-sodium sulfoisophthalic acid modified polyethylene terephthalate, butylene modified polyethylene terephthalate, etc., and is spinnable and heat settable. From the viewpoint of physical properties, polyethylene terephthalate is particularly preferable.
【００１２】本発明で使用するポリアミド系ポリマー
は、６−ナイロン、１１−ナイロン、１２−ナイロン、
６・６−ナイロンなどの線状ポリアミド樹脂であり、ポ
リエチレンテレフタレート系繊維との紡糸性、柔軟性等
物性の点から、６−ナイロンが特に好ましい。Polyamide polymers used in the present invention are 6-nylon, 11-nylon, 12-nylon,
It is a linear polyamide resin such as 6.6-nylon, and 6-nylon is particularly preferable from the viewpoint of physical properties such as spinnability with polyethylene terephthalate fiber and flexibility.
【００１３】次いで、芯鞘型複合繊維の製造方法は、従
来公知の溶融紡糸方法に準じて紡糸することができる。
すなわち、一方の溶融系でポリエチレンテレフタテート
系ポリマーを溶融し、他方の溶融系でポリアミド系ポリ
マーを溶融し、それぞれの溶融物をノズルでポリエチレ
ンテレフタテート系ポリマー溶融物を芯成分とし、ポリ
アミド系ポリマー溶融物を鞘成分に規制して、芯鞘型に
統合し、複合紡糸する方法で行う。この芯鞘型複合繊維
は、湿熱延伸あるいは乾熱延伸により１．５〜１０倍に
延伸し、必要に応じて熱固定および機械捲縮をかけて、
使用繊維とする。Next, the core-sheath type composite fiber can be spun according to a conventionally known melt spinning method.
That is, one of the melting systems melts the polyethylene terephthalate-based polymer, the other melting system melts the polyamide-based polymer, and each of the melts is a nozzle and the polyethylene terephthalate-based polymer melt is used as the core component. It is carried out by a method in which the melt of the system polymer is restricted to the sheath component, the core-sheath type is integrated, and the composite spinning is performed. This core-sheath type composite fiber is stretched 1.5 to 10 times by wet heat drawing or dry heat drawing, and if necessary, heat set and mechanical crimped,
Use fiber.
【００１４】また、前記芯鞘型複合繊維は、芯成分であ
るポリエチレンテレフタレート系ポリマーを４０〜９０
％含有しこのポリエチレンテレフタレート系ポリマーを
鞘成分であるポリアミド系ポリマーが完全に包み込んだ
実質的に同心芯鞘状複合繊維であることが望ましい。ポ
リエチレンテレフタレート系ポリマーの含有率が４０％
以下では、ヒートセット性が不良となり、９０％以上で
は、ポリエチレンテレフタレート系ポリマーをポリアミ
ド系ポリマーで完全に包み込むことが困難となり、ポリ
エチレンテレフタレート系ポリマーの低分子量オリゴマ
ーが銀面表面で結晶化し銀面表面の曇りが悪化する。Further, the core-sheath type composite fiber contains a polyethylene terephthalate polymer as a core component in an amount of 40 to 90.
%, And the polyethylene terephthalate polymer is preferably substantially concentric core-sheath composite fibers in which a polyamide polymer as a sheath component is completely wrapped. 40% polyethylene terephthalate polymer content
In the following, the heat setting property becomes poor, and in 90% or more, it becomes difficult to completely wrap the polyethylene terephthalate polymer in the polyamide polymer, and the low molecular weight oligomer of the polyethylene terephthalate polymer is crystallized on the silver surface to form the silver surface. Cloudiness worsens.
【００１５】得られた芯鞘型複合繊維はクロスラップウ
ェブまたはランダムウェブとし目的とする製品指向に応
じて必要な重量とするが、通常１００〜２０００ｇ／m2
のウェブとする。ついでニードルパンチングまたは液体
あるいは気体の噴出により繊維絡合不織布とする。これ
らの繊維集合体を作った後、ポリウレタン系ポリマーに
着色剤、活性剤、充填剤、その他添加剤などを必要に応
じて添加した溶液で含浸および／または表面コート処理
して湿式凝固させることによって繊維質基体層とする。
なお、銀面層（被覆層）の付与方法としては、繊維質基
材層にポリウレタン系ポリマーを離型紙造面する方法、
繊維質基材層にポリウレタン系ポリマー溶液をグラビア
塗布し銀面とする方法など必要に応じた方法を採用する
ことができる。The obtained core-sheath type conjugate fiber is a cross-wrap web or a random web, and the weight is required depending on the intended product orientation, but it is usually 100 to 2000 g / m 2.
And the web. Then, a fiber entangled nonwoven fabric is formed by needle punching or jetting a liquid or gas. After making these fiber aggregates, by impregnating and / or surface-coating with a solution in which a colorant, an activator, a filler, and other additives are added to the polyurethane-based polymer as needed, and wet-coagulating. A fibrous base layer.
As a method of applying the silver surface layer (coating layer), a method of forming a release paper on the fibrous base material layer with a polyurethane polymer,
Any method such as a method of gravure-coating the fibrous base material layer with a polyurethane-based polymer solution to obtain a silver surface can be adopted.
【００１６】本発明で使用するポリウレタン系ポリマー
としては、平均分子量５００〜２５００のポリマージオ
ール、例えばポリエステルジオール、ポリエーテルジオ
ール、ポリエステル・エーテルジオール、ポリカプロラ
クトンジオール、ポリカーボネートジオールなどの群か
ら選ばれた少なくとも１種類のポリマージオールと、有
機ポリイソシアネート、例えば、芳香族ジイソシアネー
ト、芳香族トリイソシアネート、脂環族ジイソシアネー
ト、脂肪族ジイソシアネートなどの群から選ばれた少な
くとも１種類の有機ポリイソシアネートと、活性水素原
子を少なくとも２個有する低分子化合物を鎖伸長剤とし
て反応させて得たポリウレタンである。これらのポリウ
レタンの組成は、該銀付き調人工皮革の用途に応じて、
風合い、耐劣化性、耐黄変性等の各種物性を満足するも
のの中から適宜選ぶことができる。The polyurethane polymer used in the present invention is at least selected from the group consisting of polymer diols having an average molecular weight of 500 to 2500, such as polyester diols, polyether diols, polyester ether diols, polycaprolactone diols and polycarbonate diols. One kind of polymer diol and at least one kind of organic polyisocyanate selected from the group of organic polyisocyanates such as aromatic diisocyanate, aromatic triisocyanate, alicyclic diisocyanate and aliphatic diisocyanate, and an active hydrogen atom. It is a polyurethane obtained by reacting a low molecular weight compound having at least two as a chain extender. The composition of these polyurethanes, depending on the use of the silver-tone artificial leather,
It can be appropriately selected from those satisfying various physical properties such as texture, deterioration resistance and yellowing resistance.
【００１７】本発明のように、繊維質基材として芯成分
がポリエチレンテレフタレート系ポリマーを主体とし、
鞘成分がポリアミド系ポリマーを主体とする芯鞘型複合
繊維を使用する事により、柔軟でウェットタッチな銀付
き調人工皮革を得ることができるが、さらに繊維不織布
を熱水または水蒸気で処理し面積で１５〜５０％収縮さ
せた後、ポリウレタン樹脂で処理することにより、より
柔軟で折れシワの良好な銀付き調人工皮革を得ることが
できる。面積収縮率が１５％以下では改良効果がほとん
ど見られず、５０％以上では生産性の低下、比重アップ
による風合いの硬化等の問題がある。繊維不織布を収縮
させる方法としては、前記芯鞘型複合繊維の延伸時熱固
定を弱くして複合繊維自体に潜在熱収縮性を付与する方
法、前記芯鞘型複合繊維と潜在熱収縮性を有する繊維を
混綿した不織布を作成し収縮させる方法、などがある。As in the present invention, the main component of the fibrous base material is a polyethylene terephthalate polymer,
By using a core-sheath type composite fiber whose sheath component is mainly a polyamide-based polymer, it is possible to obtain a soft, wet-touch artificial leather with a silver tone, but the area of the fiber nonwoven fabric is treated with hot water or steam. After being shrunk by 15 to 50% by treatment with a polyurethane resin, it is possible to obtain a silver-finished artificial leather which is softer and has better wrinkles. When the area shrinkage rate is 15% or less, almost no improvement effect is seen, and when it is 50% or more, there are problems such as a reduction in productivity and hardening of texture due to an increase in specific gravity. As a method of shrinking a fiber nonwoven fabric, a method of weakening heat setting during stretching of the core-sheath type composite fiber to impart latent heat shrinkability to the composite fiber itself, and having the core-sheath type composite fiber and latent heat shrinkability There is a method of creating a non-woven fabric in which fibers are mixed and shrinking it.
【００１８】前記芯鞘型複合繊維と混綿する潜在熱収縮
性を有する繊維としてはポリビニルアルコール系繊維、
ポリエステル系繊維、ポリウレタン系繊維などがある
が、柔軟性、銀面表面の曇り、処理性などの点から、温
水可溶性ポリビニルアルコール系繊維が特に好ましい。
芯鞘型複合繊維７０〜９０重量％と温水可溶性ポリビニ
ルアルコール系繊維３０〜１０重量％を混綿した後ウェ
ブを作成しニードルパンチング処理などを施し繊維絡合
不織布とする。この繊維絡合不織布を湿熱状態で収縮さ
せた後、ポリウレタン系ポリマー溶液を含浸および／ま
たは表面コートし湿式または乾式凝固する。その後、温
水可溶性ポリビニルアルコール系繊維を熱水で抽出除去
する方法などにより、より柔軟な銀付き調人工皮革を得
ることができる。As the fiber having latent heat shrinkability mixed with the core-sheath type composite fiber, polyvinyl alcohol fiber,
Polyester fibers, polyurethane fibers and the like are available, but warm water-soluble polyvinyl alcohol fibers are particularly preferred from the viewpoints of flexibility, cloudiness of the silver surface, and processability.
70 to 90% by weight of the core-sheath type composite fiber and 30 to 10% by weight of warm water-soluble polyvinyl alcohol fiber are mixed, and then a web is prepared and subjected to needle punching treatment to obtain a fiber entangled nonwoven fabric. After shrinking this fiber-entangled nonwoven fabric in a wet heat state, it is impregnated and / or surface-coated with a polyurethane polymer solution and wet- or dry-coagulated. Then, a more soft silver-coated artificial leather can be obtained by a method of extracting and removing the warm water-soluble polyvinyl alcohol fiber with hot water.
【００１９】本発明においては、芯成分がポリエチレン
テレフタレート系ポリマーを主体とし、鞘成分がポリア
ミド系ポリマーを主体とした芯鞘型複合繊維を繊維質基
材層の一部に使用すること、特に前記複合繊維を含む繊
維不織布を収縮させた後、ポリウレタン系ポリマーで処
理することにより、ヒートセット性、風合いが良好で、
銀面表面に曇りのない銀付き調人工皮革を得ることがで
きる。In the present invention, a core-sheath type composite fiber having a core component mainly composed of a polyethylene terephthalate polymer and a sheath component mainly composed of a polyamide polymer is used as a part of the fibrous base material layer. After shrinking the fibrous nonwoven fabric containing the composite fibers, by treating with a polyurethane-based polymer, the heat setting property, the texture is good,
It is possible to obtain a silver-tone artificial leather having no silver surface.
【００２０】[0020]
【実施例】次に、本発明の実施様態を実施例で説明す
る。なお、実施例中の部および％は断りのない限り重量
に関するものである。なお、本発明における製品の評価
方法は以下の方法による。 （１）ヒートセット性：ＪＩＳ−Ｋ−６５４６に準じて
測定。 測定条件・・・成型温度；１００±２℃ 成型時間：３０分 回復時間：２４時間 （２）タッチ：官能評価により評価した。 （３）折れシワ：官能評価により３段階に評価した。 ○・・・天然皮革様の細かい折れシワ △・・・やや粗いしわ ×・・・ペーパーライクな粗いシワ （４）銀面表面曇り：２０℃の室内に放置して、２カ月
毎に目視評価した。 ○・・・２年以上曇りなし △・・・１〜２年で曇り発生 ×・・・１年以内で曇り発生EXAMPLES Next, embodiments of the present invention will be described with reference to Examples. Parts and% in the examples relate to weight unless otherwise specified. The evaluation method of the product in the present invention is as follows. (1) Heat setting property: measured according to JIS-K-6546. Measurement conditions: Molding temperature; 100 ± 2 ° C. Molding time: 30 minutes Recovery time: 24 hours (2) Touch: Evaluated by sensory evaluation. (3) Folded wrinkles: Sensory evaluation was performed on three levels. ○ ・ ・ ・ Fine wrinkles similar to natural leather △ ・ ・ ・ Slightly rough wrinkles × ・ ・ ・ Rough wrinkles similar to paper (4) Haze on silver surface: left in a room at 20 ° C. and visually evaluated every two months did. ○ ・ ・ ・ No clouding for 2 years or more △ ・ ・ ・ Clouding occurred in 1-2 years × ・ ・ ・ Clouding occurred within 1 year
【００２１】実施例１ ポリエチレンテレフタレート系ポリマーとしてポリエチ
レンテレフタレートを、ポリアミド系ポリマーとして６
−ナイロンを使用して、複合紡糸ノズルを用いて、ポリ
エチレンテレフタレート６０％、６−ナイロン４０％の
比率になるようにポリエチレンテレフタレートを芯成分
とする太さ９．０デニールの実質的に同心芯鞘状の未延
伸複合繊維を得た。得られた複合紡糸繊維は７０℃の熱
水中で３．０倍に延伸し油剤を付与した後、機械捲縮を
掛けて、繊維長５１mmに切断して、繊度３．０デニール
のステープル繊維とし、カード、クロスラッパー、ニー
ドルパンチの各工程を通し、目付２５０ｇ／m2の不織布
を得た。該不織布にポリビニルアルコール（以下ＰＶＡ
と略記する）５％水溶液を含浸し、目標絞り率１５０％
で絞液し、乾燥、熱ロールプレスして見かけ密度０．２
ｇ／cm3の形態の安定な不織布シートとした。Example 1 Polyethylene terephthalate was used as the polyethylene terephthalate polymer and 6 was used as the polyamide polymer.
-Using nylon and a composite spinning nozzle, a substantially concentric core sheath having a thickness of 9.0 denier and containing polyethylene terephthalate as a core component in a ratio of 60% polyethylene terephthalate and 40% 6-nylon. An unstretched composite fiber having a shape of a filament was obtained. The obtained composite spun fiber is drawn 3.0 times in hot water at 70 ° C. and applied with an oiling agent, then mechanically crimped, cut into a fiber length of 51 mm, and staple fiber having a fineness of 3.0 denier. Then, each step of card, cross wrapper and needle punch was performed to obtain a nonwoven fabric having a basis weight of 250 g / m 2 . Polyvinyl alcohol (hereinafter PVA)
(Abbreviated as “) 5% aqueous solution is impregnated and the target drawing rate is 150%
Squeeze liquid, dry and heat roll press to give an apparent density of 0.2
A stable non-woven sheet having a shape of g / cm 3 was obtained.
【００２２】得られた不織布シートにポリエステル系ポ
リウレタンの１３％Ｎ，Ｎ’−ジメチルホルムアミド
（以下ＤＭＦと略記する）溶液を含浸し、次いで不織布
シート上面にポリエステル系ポリウレタンの２０％ＤＭ
Ｆ溶液を固形分換算で１２０ｇ／m2コート塗布した後、
ＤＭＦ濃度２０％、温度３０℃の凝固浴に浸漬して湿式
凝固し、さらに脱ＰＶＡ、脱ＤＭＦ処理して多孔質シー
ト状物を得た。The obtained nonwoven sheet was impregnated with a 13% N, N'-dimethylformamide (hereinafter abbreviated as DMF) solution of polyester polyurethane, and then 20% DM of polyester polyurethane was applied on the upper surface of the nonwoven sheet.
After coating the solution F with 120 g / m 2 of solid content,
It was immersed in a coagulation bath having a DMF concentration of 20% and a temperature of 30 ° C. for wet coagulation, and then subjected to PVA-removing and DMF-removing treatment to obtain a porous sheet-like material.
【００２３】次いで、銀面曇りの観察が容易になるよう
に、表面に上記ポリウレタンに黒色顔料をまぜた溶液を
グラビアコーターで塗布し、エンボスなどの仕上げ処理
を行って、銀付き調人工皮革を得た。Next, in order to make it easy to observe the cloudiness on the silver surface, a solution prepared by mixing the above-mentioned polyurethane with a black pigment is applied to the surface with a gravure coater, and finishing treatment such as embossing is performed to obtain a silver-tone artificial leather. Obtained.
【００２４】実施例２ 実施例１の不織布シートに、ポリエステル系ポリウレタ
ンの１３％ＤＭＦ溶液を含浸した後、ＤＭＦ濃度２０
％、温度３０℃の凝固浴に浸漬して湿式凝固し、脱ＰＶ
Ａ、脱ＤＭＦ処理して繊維質基材を得た。この繊維質基
材に黒顔料をまぜたポリエーテル系ポリウレタンを離型
紙造面方法によって付与し、銀付き調人工皮革を得た。Example 2 The nonwoven fabric sheet of Example 1 was impregnated with a 13% DMF solution of polyester-based polyurethane, and then the DMF concentration was 20.
%, Soaking in a coagulation bath at a temperature of 30 ° C for wet coagulation, and removing PV
A, a DMF removal treatment was performed to obtain a fibrous base material. To this fibrous base material, a polyether-based polyurethane mixed with a black pigment was applied by a release paper making method to obtain a silver-tone artificial leather.
【００２５】実施例３ 実施例１の芯鞘型複合繊維ステープル８０％に温水可溶
性ポリビニルアルコール（ＶＰＢ２０１ｘ５１：（株）
クラレ製）２０％を混綿し、カード、クロスラップ、ニ
ードルパンチ処理を施した後６０℃熱水浸漬処理を行い
面積で３０％収縮させた後、乾燥、熱ロール処理し、見
かけ密度０．２５ｇ／cm3の繊維不織布を得た。この繊
維不織布に実施例１と同様の処理を施し、銀付き調人工
皮革を得た。Example 3 80% of the core-sheath type composite fiber staple of Example 1 was mixed with hot water-soluble polyvinyl alcohol (VPB201x51: manufactured by Co., Ltd.).
Kuraray Co., Ltd.) mixed with 20%, subjected to card, cross lap, and needle punch treatment, and then subjected to hot water immersion treatment at 60 ° C. to shrink 30% in area, followed by drying and heat roll treatment, and apparent density of 0.25 g A fiber nonwoven fabric of / cm 3 was obtained. This fibrous nonwoven fabric was treated in the same manner as in Example 1 to obtain a silver-tone artificial leather.
【００２６】比較例１ 芯鞘型複合繊維の代わりにポリエチレンテレフタレート
の単一成分の繊維を使用した以外は、実施例１と同様の
処理を行い、銀付き調人工皮革を得た。Comparative Example 1 An artificial leather with a tone of silver was obtained by the same treatment as in Example 1 except that polyethylene terephthalate single component fiber was used instead of the core-sheath type composite fiber.
【００２７】比較例２ 芯鞘型複合繊維の代わりに６−ナイロンの単一成分の繊
維を使用した以外は、実施例１と同様の処理を行い、銀
付き調人工皮革を得た。Comparative Example 2 A silver-toned artificial leather was obtained in the same manner as in Example 1, except that a single component fiber of 6-nylon was used instead of the core-sheath type composite fiber.
【００２８】実施例１〜３および比較例１〜２のヒート
セット性、タッチ、折れシワ、銀面表面曇りを表１に示
した。Table 1 shows the heat-setting properties, touch, creases and silver surface haze of Examples 1 to 3 and Comparative Examples 1 and 2.
【００２９】[0029]
【表１】 [Table 1]
【００３０】[0030]
【発明の効果】以上説明したごとく、本発明の方法によ
れば、芯成分がポリエチレンテレフタレート系ポリマー
を主体とし、鞘成分がポリアミド系ポリマーを主体とし
た芯鞘型複合繊維を繊維質基材層の繊維成分として使用
することにより、ヒートセット性が良好で、風合いがウ
ェットタッチで柔軟で、しかも２年以上放置しても銀面
表面に曇りのでない銀付き調人工皮革を得ることができ
る。As described above, according to the method of the present invention, a core-sheath type composite fiber having a polyethylene terephthalate polymer as a core component and a polyamide polymer as a sheath component is a fibrous base material layer. By using it as a fiber component, it is possible to obtain an artificial leather with a silver tone, which has good heat setting properties, is soft to the touch with a soft touch, and has no cloudiness on the silver surface even after being left for two years or more.
Claims (4)
ポリマーを主体とし、鞘成分がポリアミド系ポリマーを
主体とした複合繊維を含む繊維質基材層とポリウレタン
系ポリマーを主体とした被覆層とからなる銀付き調人工
皮革。1. A silver-based material comprising a fibrous base material layer containing a composite fiber containing a polyethylene terephthalate polymer as a core component and a polyamide polymer as a sheath component, and a coating layer mainly containing a polyurethane polymer. Toned artificial leather.
たは水蒸気で処理し面積で１５〜５０％収縮させたのち
ポリウレタン系ポリマーで処理することを特徴とする請
求項１記載の銀付き調人工皮革の製造方法。2. The silver tone according to claim 1, wherein the fibrous nonwoven fabric containing the core-sheath composite fibers is treated with hot water or steam to shrink the area by 15 to 50% and then treated with a polyurethane polymer. Manufacturing method of artificial leather.
アルコール系繊維を１０〜３０％含む請求項２記載の銀
付き調人工皮革の製造方法。3. The method for producing a silver-finished artificial leather according to claim 2, wherein the shrinkable fiber contains 10 to 30% of warm water-soluble polyvinyl alcohol fiber.
を特徴とする請求項１記載の銀付き調人工皮革。4. The artificial leather with a tone of silver according to claim 1, which is a substantially concentric core-sheath composite fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05026644A JP3128376B2 (en) | 1993-02-16 | 1993-02-16 | Artificial leather with silver comprising a base material containing polyester-based fiber and method of manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05026644A JP3128376B2 (en) | 1993-02-16 | 1993-02-16 | Artificial leather with silver comprising a base material containing polyester-based fiber and method of manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06240584A true JPH06240584A (en) | 1994-08-30 |
| JP3128376B2 JP3128376B2 (en) | 2001-01-29 |
Family
ID=12199162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05026644A Expired - Fee Related JP3128376B2 (en) | 1993-02-16 | 1993-02-16 | Artificial leather with silver comprising a base material containing polyester-based fiber and method of manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3128376B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005106108A1 (en) * | 2004-04-28 | 2005-11-10 | Kuraray Co., Ltd. | Artificial leather with silvered tone |
| JP2006233393A (en) * | 2005-02-28 | 2006-09-07 | Kuraray Co Ltd | Method for producing compact interlaced nonwoven fabric |
| US7442429B2 (en) | 2002-08-22 | 2008-10-28 | Kuraray Co., Ltd. | Grain-finished artificial leathers |
-
1993
- 1993-02-16 JP JP05026644A patent/JP3128376B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442429B2 (en) | 2002-08-22 | 2008-10-28 | Kuraray Co., Ltd. | Grain-finished artificial leathers |
| WO2005106108A1 (en) * | 2004-04-28 | 2005-11-10 | Kuraray Co., Ltd. | Artificial leather with silvered tone |
| JP2006233393A (en) * | 2005-02-28 | 2006-09-07 | Kuraray Co Ltd | Method for producing compact interlaced nonwoven fabric |
| JP4549886B2 (en) * | 2005-02-28 | 2010-09-22 | 株式会社クラレ | Method for producing dense entangled nonwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3128376B2 (en) | 2001-01-29 |
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