JPS5943158A - Sheet substance capable of using front and back surfaces and production thereof - Google Patents

Sheet substance capable of using front and back surfaces and production thereof

Info

Publication number
JPS5943158A
JPS5943158A JP57153827A JP15382782A JPS5943158A JP S5943158 A JPS5943158 A JP S5943158A JP 57153827 A JP57153827 A JP 57153827A JP 15382782 A JP15382782 A JP 15382782A JP S5943158 A JPS5943158 A JP S5943158A
Authority
JP
Japan
Prior art keywords
fiber bundles
sheet
fibers
sea
island
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
Application number
JP57153827A
Other languages
Japanese (ja)
Other versions
JPS62259B2 (en
Inventor
八木 健吉
博恭 加藤
岡本 三宜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP57153827A priority Critical patent/JPS5943158A/en
Publication of JPS5943158A publication Critical patent/JPS5943158A/en
Publication of JPS62259B2 publication Critical patent/JPS62259B2/ja
Granted legal-status Critical Current

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  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は,一面が超極細繊維立毛により覆われたスエー
ド調表面を示し、他の一面が超極細繊維によりフィブリ
ル化絡合して形成された緻密な銀面調表面を示す表裏両
面が使用可能なシート状物およびその製法に関するもの
である。
Detailed Description of the Invention The present invention has a suede-like surface covered with napped ultra-fine fibers on one side, and a dense silver-like surface formed by fibrillation and entanglement of ultra-fine fibers on the other side. The present invention relates to a sheet-like product that can be used on both the front and back sides, and a method for producing the same.

従来、天然皮革代替物を目指して,ポリウレタンなどの
重合体物質を表面層とした銀面付人工皮革や、極細繊維
束の不織布をベースとし表面を起毛してスエード調とし
た立毛人工皮革が生まれたことは周知である。しかし従
来の人工皮革は銀面調あるいはスエード調など,用途,
目的に応じて開発されてきたため、それぞれの用途には
適したものであっても、両者を組み合せたり,リバーシ
ブルとして新しいデザインやファッションを開発する素
材として使用しようとすると風合や品質が異質であるこ
と、色調が合わないこと、染色堅牢性に差があることな
どが基本的な問題となって,かかる目的には対応できな
かつた。
Conventionally, with the aim of being a substitute for natural leather, silver-faced artificial leather with a surface layer of polymeric substances such as polyurethane, and napped artificial leather with a suede-like surface based on nonwoven fabric made of microfine fiber bundles have been created. That is well known. However, conventional artificial leather has a silver finish or suede finish, depending on the purpose.
Because they have been developed for different purposes, even if they are suitable for each purpose, if you try to combine them or use them as reversible materials to develop new designs and fashion, the texture and quality will be different. The basic problems were that the color tone did not match, and that there were differences in dyeing fastness, making it impossible to meet these purposes.

近年特に衣料分野を主体に新しいファッション素材がと
りあげられていているが、上記のような銀付調とスエー
ド調を自在に組み合せられる素材に対する要望が増加し
てきている。かかる要望にスエード調素材としては応じ
られるものが出現しているのに対し,銀付人工皮革につ
いてはこれまでポリウレタン膜が表面に存在するため,
 光沢や色調がいかにもビニルライクであり,コンビネ
ーション用素材としては不適当なものしかなかった。
In recent years, new fashion materials have been featured, particularly in the clothing field, and there has been an increasing demand for materials that can freely combine the silver-finish and suede-like styles described above. While suede-like materials have appeared that can meet these demands, silver-finished artificial leather has until now had a polyurethane film on its surface, so
The gloss and color tone were very vinyl-like, making it unsuitable as a combination material.

ましてリバーシブル素材などは望むべくもなかった。Moreover, there was no way I could have hoped for a reversible material.

本発明者らはかかる欠点を改良するとともに、スエード
調と銀付調のコンビネーション使いができるような高品
位,風合,良好な染色特性を有するシート状物を得るた
めの検討を鋭意すすめ,リバーシブル素材としても使用
できる表裏両面が使用可能なシート状物を得るに至った
The present inventors have worked diligently to improve these drawbacks and to obtain a sheet-like material with high quality, texture, and good dyeing properties that can be used in combination with suede-like and silver-like colors, and which are reversible. A sheet-like product whose front and back surfaces can be used as a raw material has been obtained.

すなわち本発明の目的は、一面はスエード調の立毛表面
であり,他の一面は銀面様の緻密な表面であるような,
表裏両面が使用可能であるシート状物およびその製造法
を得るにある。
In other words, the object of the present invention is to create a fabric that has a suede-like raised surface on one side and a silver-like dense surface on the other side.
To obtain a sheet-like product that can be used on both the front and back sides, and a method for producing the same.

本発明は一方の表面が銀面調表面となっており、他方の
表面が立毛調表面となっているシート状物質において、
0.2デニール以下の超極細繊維、該超極細繊維が多数
本集まった超極細繊維束(1次繊維束と称する),およ
び該1次繊維束がさらに多数本集まった繊維束(2次繊
維束と称する)から主としてなる繊維質シートであって
、シートの厚み方向に対し、該銀面様表面近傍は1次繊
維束から枝分れした超極細繊維がフイブリル化絡合した
構造が主体を占め、次いで1次繊維束が主として絡合し
た構造を経て、さらに2次繊維束が主として絡合した構
造に至り,遂には2次繊維束から開繊された立毛によっ
て主として覆われた立毛調表面となっているような表面
および断面構造を有することを特徴とする表裏両面使用
可能なシート状物質およびその製造方法に関するもので
ある。
The present invention provides a sheet-like material in which one surface has a silver-like surface and the other surface has a raised-like surface,
Ultra-fine fibers of 0.2 denier or less, ultra-fine fiber bundles made up of many of these super-fine fibers (referred to as primary fiber bundles), and fiber bundles made of even more of these primary fiber bundles (referred to as secondary fibers) It is a fibrous sheet mainly composed of fibers (referred to as bundles), and in the thickness direction of the sheet, the vicinity of the grain-like surface mainly has a structure in which ultrafine fibers branched from the primary fiber bundle are fibrillated and entangled. Then, the primary fiber bundles pass through a structure in which the primary fiber bundles are mainly entangled, and then the secondary fiber bundles reach a structure in which the secondary fiber bundles are mainly entangled, and finally a napped-like surface is formed that is mainly covered by napped fibers opened from the secondary fiber bundles. The present invention relates to a sheet-like material that can be used on both the front and back surfaces and has a surface and cross-sectional structure as follows, and a method for producing the same.

本発明のシート状物質は、超極細繊維がフイブリル化し
て絡み合って形成された銀面を有し、かつ該超極細繊維
は厚み方向に対して表面から遠ざかるにつれ,多数本が
集束して1次繊維束を形成し、さらに1次繊維束が複数
本集束して2次繊維束を形成し,遂には2次繊維束から
開繊した超極細繊維の立毛表面に至るという特別な繊維
構造のため,構造のバランスが極めて良くなり,良好な
屈曲じわを発生させ,後処理加工で容易に,良好な揉み
シボを付与できるなど高級天然皮革に備わっている優れ
た特長で,これまでの銀面付人工皮革では達し得なかっ
た銀面調表面を一面にもち、他の一面は優美なスエード
調の立毛表面であるシート状物となる。
The sheet material of the present invention has a silver surface formed by fibrillating and intertwining ultrafine fibers, and as the ultrafine fibers move away from the surface in the thickness direction, a large number of them converge into a primary shape. Due to its special fiber structure, it forms a fiber bundle, and then multiple primary fiber bundles come together to form a secondary fiber bundle, and finally the secondary fiber bundle reaches the napped surface of the opened ultra-fine fiber. With the excellent features of high-grade natural leather, such as an extremely well-balanced structure, the generation of good bending wrinkles, and the ability to easily add good textured grains through post-processing, the grain surface of the leather has been improved. The sheet-like material has a grainy surface on one side, which cannot be achieved with artificial leather, and the other side has an elegant suede-like raised surface.

このため本発明のシート状物はスエード調としても、銀
付調としても使用でき、コンビネーション使いやリバー
シブル使いが可能となるのである。
Therefore, the sheet-like material of the present invention can be used as a suede-like material or as a silver-like material, and can be used in combination or reversibly.

しかも超極細フイブリルが絡合してできた銀面は従来の
ポリウレタン膜の銀面と異なり、繊維質主体であるので
、染色や仕上は立毛面と全く共通で良く、光沢や色調が
極めて自然となり,ビニールライクな欠点は解消される
Moreover, unlike the silver surface of conventional polyurethane films, the silver surface created by the entanglement of ultra-fine fibrils is mainly fibrous, so the dyeing and finishing can be exactly the same as the raised surface, resulting in an extremely natural gloss and color tone. ,Vinyl-like disadvantages are eliminated.

本発明のシート状物を構成する繊維としては,少なくと
も2種の高分子物質から成る海島型繊維であって,多数
の島成分と海成分とから成る海島構造の複数がさらに1
コの海に囲まれており,全海成分を除去後は0.2デニ
ール以下の超極細繊維が多数本集まって成る超極細繊維
束(1次繊維束)がさらに複数本集まって2次繊維束を
形成するような構造の多成分系繊維が好ましく用いられ
る。
The fibers constituting the sheet-like article of the present invention are sea-island type fibers made of at least two types of polymeric substances, in which a plurality of sea-island structures made of a large number of island components and a sea component are further added.
After removing all the sea components, multiple ultra-fine fiber bundles (primary fiber bundles) consisting of many ultra-fine fibers of 0.2 denier or less are gathered together to form secondary fibers. Multicomponent fibers having a structure that forms bundles are preferably used.

このような多成分系繊維の好ましい概念は第1図、第2
図、およひ第3図に示した。すなわち、多数の島成分1
と海成分2とから成る海島構造がさらに大きな1コの海
成分3に囲まれているようなものである。かかる多成分
系繊維は全海成分を除去すると、多数の超極細繊維から
成る1次繊維束とさらに1次繊維束が複数本集まって成
る2次繊維束が得られる。
Preferred concepts for such multicomponent fibers are shown in Figures 1 and 2.
and Fig. 3. That is, a large number of island components 1
It is as if a sea-island structure consisting of a sea component 2 and a sea component 2 is surrounded by an even larger sea component 3. When the whole sea component is removed from such a multicomponent fiber, a primary fiber bundle consisting of a large number of ultra-fine fibers and a secondary fiber bundle consisting of a plurality of primary fiber bundles are obtained.

かかる多成分系繊維の製造手段については,例えば特開
昭54−125718に開示された海島型多成分系繊維
用紡糸口金を用いる方法が好ましい。
As for the means for producing such multicomponent fibers, a method using an island-in-the-sea type multicomponent fiber spinneret disclosed, for example, in JP-A-54-125718 is preferable.

この方法においては島成分1と海成分2および海成分3
の配置が完全に規制でき、島成分の本数と太さを口金設
計により任意に変更できる。またこの方法の変形として
島成分流を複数以上に分割して他の島成分流と合流する
機構としてスタテイツクミキサーを使用する方法も好ま
しい。すなわち本発明の島成分1と海成分2の流れをス
タテイツクミキサーに導入して海島構造とし、次いで海
成分3で被覆する方法である。
In this method, island component 1, sea component 2, and sea component 3 are
The arrangement of the islands can be completely regulated, and the number and thickness of the island components can be changed arbitrarily by changing the design of the cap. As a modification of this method, it is also preferable to use a static mixer as a mechanism for dividing the island component flow into a plurality of parts or more and merging them with other island component flows. That is, in this method, the flow of the island component 1 and the sea component 2 of the present invention is introduced into a static mixer to form a sea-island structure, and then the sea component 3 is coated.

スタティックミキサーとしては、例えば特公昭−53−
36182記載のような流体混合器を使用すれば,島本
数および太さは混合素子の数で変更でき、得られる島成
分は前述の特殊口金法と同様繊維軸方向に実質的に連続
となる。フイブリル状態から1次繊維束を経て2次繊維
束に至るまで各超極細繊維が連続する点で,上記の各手
段による多成分系繊維は本発明の目的に最も適った繊維
である。
As a static mixer, for example, Tokuko Sho-53-
If a fluid mixer such as that described in No. 36182 is used, the number and thickness of the islands can be changed by changing the number of mixing elements, and the obtained island component is substantially continuous in the fiber axis direction as in the above-mentioned special die method. The multicomponent fibers produced by each of the above means are the most suitable fibers for the purpose of the present invention in that each ultrafine fiber is continuous from the fibril state through the primary fiber bundle to the secondary fiber bundle.

しかし本発明の目的からは必ずしも島成分は連続してい
る必要はなく,フイブリル状態,1次繊維束,2次繊維
束,立毛の構造を生ぜしめる繊維であれば使用可能であ
る。この意味から例えば特公昭47−37648記載の
ような高分子相互配列体の島成分がポリマブレンドされ
たものであって、該島成分が海島構造をなしているよう
な多成分系繊維は使用できる。しかし単なるチップ混合
あるいはエクストルーダ混合もしくは流れを分断するタ
イプのスタテイツクミキサー混合によるポリマブレンド
では紡止性が悪く、また繊維は本質的に不連続であるの
で,本発明の効果を得るための適正な製糸条件の工夫が
必要となり、また海島構造になる限界島比率が前述の好
適な製造手段に比べ,低くなるのは止むを得ない。
However, for the purpose of the present invention, the island components do not necessarily have to be continuous, and any fiber that produces a fibrillar state, a primary fiber bundle, a secondary fiber bundle, or a nap structure can be used. In this sense, it is possible to use multi-component fibers such as those described in Japanese Patent Publication No. 47-37648, which are polymer blends of island components of mutually arranged polymers and in which the island components form a sea-island structure. . However, polymer blends made by simple chip mixing, extruder mixing, or static mixer mixing of the type that breaks the flow have poor spinnability, and the fibers are essentially discontinuous, so it is difficult to obtain the effects of the present invention. It is necessary to devise yarn spinning conditions, and it is unavoidable that the critical island ratio resulting in a sea-island structure is lower than that in the above-mentioned preferred manufacturing method.

上記の多成分系繊維を構成する島成分としては、例えば
ナイロン6,ナイロン66,ナイロン12、その他の共
重合ナイロンなどのポリアミド類,ポリエチレンテレフ
タレート、共重合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、共重合ポリブチレンテレフタレ
ートなどのポリエステル類、ポリエチレン,ポリプロプ
レンなどのポリオレフイン類,ポリアクリロニトリル、
ポリウレタン,およびビニル重合体などが用いられる。
Examples of the island components constituting the multicomponent fibers include polyamides such as nylon 6, nylon 66, nylon 12, and other copolymerized nylons, polyethylene terephthalate, copolymerized polyethylene terephthalate, polybutylene terephthalate, and copolymerized polybutylene. Polyesters such as terephthalate, polyolefins such as polyethylene and polypropylene, polyacrylonitrile,
Polyurethane, vinyl polymer, etc. are used.

また海成分としては,例えばポリスチレン、ポリプロピ
レン,アルカリ可溶の共重合ポリエチレンテレフタレー
ト,ポリアミド,ポリウレタン,スチレン−アクリロニ
トリル共重合体,スチレンとアクリル酸の高級アルコー
ルエステルおよ/またはメタクリル酸の高級アルコール
エステルとの共重合体,ポリビニルアルコール,共重合
ポリビニルアルコールなどが用いられる。海成分として
は紡糸の容易さ,溶解除去の容易さの点でポリスチレン
,スチレン−アクリロニトリル共重合体、スチレンとア
クリル酸の高級アルコールエステルおよび/またはメタ
クリル酸の高級アルコールエステルとの共重合体が好ま
しい。また高速流体流により海成分を割裂しやすくする
点で, 海成分にポリエチレングリコールなどの異種ポ
リマを若干量混合することは好ましい。島成分と海成分
の選択は溶剤に対する溶解性が異なる組み合せが必要で
あり、海成分2と海成分3の選択は同種のポリマであっ
ても異種のポリマであっても良いが、溶剤に対する溶解
性は同じである組み合せが好ましい。島成分1−海成分
2−海成分3の好ましい組み合せとしては、ナイロン6
−ポリスチレン(共車合体を含む)−ポリスチレン(共
重合体を含む)。
Examples of the sea component include polystyrene, polypropylene, alkali-soluble copolymerized polyethylene terephthalate, polyamide, polyurethane, styrene-acrylonitrile copolymer, higher alcohol ester of styrene and acrylic acid, and/or higher alcohol ester of methacrylic acid. copolymers, polyvinyl alcohol, copolymerized polyvinyl alcohol, etc. are used. As the sea component, polystyrene, a styrene-acrylonitrile copolymer, a copolymer of styrene and a higher alcohol ester of acrylic acid and/or a higher alcohol ester of methacrylic acid are preferable in terms of ease of spinning and ease of dissolution and removal. . In addition, it is preferable to mix a small amount of a different type of polymer such as polyethylene glycol with the sea component in order to make it easier to split the sea component by high-speed fluid flow. The selection of the island component and the sea component requires combinations with different solubility in the solvent, and the selection of the sea component 2 and sea component 3 may be the same or different polymers, but the solubility in the solvent is Combinations having the same gender are preferred. A preferred combination of island component 1-sea component 2-sea component 3 is nylon 6
- Polystyrene (including copolymers) - Polystyrene (including copolymers).

ポリエチレンテレフタレート(共重合体を含む)−ポリ
スチレン(共重合体を含む)−ポリスチレン(共重合体
を含む),ポリプチレンテレフタレート−ポリスチレン
(共重合体を含む)−ポリスチレン(共重合体を含む)
などが挙げられるが、もちろんこれらに限定されるもの
ではない。
Polyethylene terephthalate (including copolymers) - polystyrene (including copolymers) - polystyrene (including copolymers), polybutylene terephthalate - polystyrene (including copolymers) - polystyrene (including copolymers)
These include, but are not limited to, of course.

1次繊維束を形成する島成分の本数は、どの多成分系繊
維の製造手段を選択するかということと、口金の設計、
流体混合器の素子数、ブレンドにおける島比率などの可
変条件の設定により、コントロールが可能である。少な
くとも5本以上の多数本が必要であるが、多数本になれ
ばなる程太さは細化し、フィブリル化して形成される銀
面構造が緻密化し、また立毛も緻密化するので好適であ
る。
The number of island components that form the primary fiber bundle depends on which multicomponent fiber manufacturing method is selected, the design of the die,
Control is possible by setting variable conditions such as the number of elements in the fluid mixer and the island ratio in blending. A large number of fibers (at least 5 or more) is required, but the larger the number, the thinner the thickness, the more dense the grain structure formed by fibrillation, and the more dense the raised hairs are, so it is preferable.

この点からは前述の特殊流体混合器を使用する方法は、
島本数を極めて多くとることが簡単であり特に好ましい
From this point on, the method of using the special fluid mixer mentioned above is
It is easy and particularly preferable to increase the number of Shimamotos.

2次繊維束を形成する1次繊維束の本数は、島成分と海
成分2の合流の流路をいくつ設けるかによってコントロ
ールが可能であり、好ましくは5本以上の複数本が用い
られる。上限については特に制限はないが、口金の制作
制度で限界がある。
The number of primary fiber bundles forming the secondary fiber bundle can be controlled by how many channels are provided for the confluence of the island component and the sea component 2, and preferably a plurality of five or more fiber bundles is used. There is no particular limit on the upper limit, but there is a limit depending on the cap production system.

島成分の太さは、本発明の目的を達成するためには0.
2デニール以下、好ましくは0.15デニール以下の超
極細を必要とする。これにより太い繊維を用いると,例
えフィブリル化絡合させて銀面が形成できても、平滑性
や緻密性が劣り、またスエード調表面の立毛品位が劣る
ので,本発明の目的とする高級感を有するシートは得ら
れない。
In order to achieve the purpose of the present invention, the thickness of the island component should be 0.
It requires ultra-fineness of 2 denier or less, preferably 0.15 denier or less. As a result, if thick fibers are used, even if a silver surface can be formed by fibrillation and entanglement, the smoothness and density will be poor, and the raised quality of the suede-like surface will be poor. It is not possible to obtain a sheet with

上述したような超極細繊維のフィブリル、1次繊維束,
2次繊維束が相互に絡合して成る本発明のシート状物の
好ましい概念を第4図に示した。
Fibrils of ultra-fine fibers as described above, primary fiber bundles,
FIG. 4 shows a preferred concept of the sheet-like article of the present invention in which secondary fiber bundles are entangled with each other.

すなわち超極細繊維が多数本収束して成る1次繊維束5
は表面近傍で超極細繊維にフィブリル化して、かつ密に
絡合して緻密な銀面層4を形成し、裏面に向っては1次
繊維束5がさらに複数本集束して2次繊維束6を形成し
、全体としても絡合構造となっている。さらに,2次繊
維束は開繊して立毛7を形成し立毛表面となる。このよ
うな基本構造に樹脂が付着した構造、特に少なくとも表
面および表面近傍に近い部分やシート内部の空隙に樹脂
が存在する構造も好ましい。特に超極細繊維や繊維束を
とりまく形で存在するのが良い。もちろん第4図はあく
まで1つの概念図であって、フイブリル化絡合構造4,
1次繊維束5、2次繊維束6の相対関係はこの通りであ
っても、厚み方向における比率関係は変っても全く差し
支えない。かかる構造の関係は拘束流体流の噴き当て処
理により生じるので、局部的には4、5、6の各構造が
入り乱れて絡合する場合もあるが、本発明の効果が得ら
れる範囲内であれば差し支えないことである。
In other words, the primary fiber bundle 5 is made up of a large number of ultra-fine fibers converging.
The fibers are fibrillated into ultra-fine fibers near the surface and are tightly intertwined to form a dense grain layer 4, and toward the back surface, a plurality of primary fiber bundles 5 are further bundled to form a secondary fiber bundle. 6 and has an entangled structure as a whole. Further, the secondary fiber bundle is opened to form a nap 7 and become a nap surface. It is also preferable to have a structure in which a resin is attached to such a basic structure, particularly a structure in which the resin is present at least on the surface, in a portion near the surface, or in a void inside the sheet. In particular, it is preferable that it exists in a form surrounding ultra-fine fibers or fiber bundles. Of course, Figure 4 is just one conceptual diagram, and the fibrillated entangled structure 4,
Even if the relative relationship between the primary fiber bundle 5 and the secondary fiber bundle 6 is as described above, there is no problem even if the ratio relationship in the thickness direction is changed. Since this structure relationship is caused by the injection process of the restricted fluid flow, the structures 4, 5, and 6 may be locally mixed and entangled, but within the range where the effects of the present invention can be obtained. There is no problem.

このような構造の本発明の銀付皮革様シート状物を得る
手段としては大別して2方法ある。その1は、前述の多
成分系繊維を適当な長さにカットしてステープルファイ
バーとして開綿、カード,ウエブ形成の工程を経てシー
ト状ウェブとし、次いでニードルパンチにより絡合を行
なって不織布シートを得,該不織布の片面から高速流体
流を噴き当てて海成分の割裂と,露出した超極細繊維束
のフィブリル化絡合を行ない、然る後に多成分系繊維の
海成分に対しては溶剤で、島成分に対しては非溶剤であ
る液体により海成分を溶解除去し、次いで高速流体流で
処理した面を一型押しあるいはプレスし、高速流体流で
処理していない面をバフして本発明のシート状物とする
方法である。
There are roughly two methods for obtaining the silvered leather-like sheet material of the present invention having such a structure. The first method is to cut the aforementioned multicomponent fibers into appropriate lengths and use them as staple fibers to create a sheet-like web through the steps of opening, carding, and web formation, and then intertwining them with a needle punch to form a nonwoven fabric sheet. Then, a high-speed fluid stream is sprayed from one side of the nonwoven fabric to split the sea component and fibrillate and entangle the exposed ultrafine fiber bundles, and then the sea component of the multicomponent fiber is treated with a solvent. For the island component, the sea component is dissolved and removed using a non-solvent liquid, then the surface treated with a high-speed fluid flow is stamped or pressed, and the surface not treated with a high-speed fluid flow is buffed. This is a method of producing a sheet-like product according to the invention.

また海成分溶解工程と型押しあるいはプレス工程を逆に
しても良い。これら主工程の間に通常の人工皮革製造の
技術を組み合せることは、目的の皮革シ一トの品質設計
に応じ自由に行なえば良い。
Alternatively, the sea component dissolving step and the embossing or pressing step may be reversed. Conventional artificial leather manufacturing techniques may be freely combined between these main steps depending on the quality design of the desired leather sheet.

すなわち,不織布の収縮を高速流体流処理の前もしくは
後に行なうこと,ポリウレタンエラストマーなどの樹脂
液を高速流体流処理の後に付与し,湿式凝固あるいは乾
式凝固により樹脂を繊維あるいは繊維束のまわりに付与
すること、厚目の不織布の両面に,高速流体流処理を行
ないその後の適当な工程でスライスすること、型押しも
しくはプレス前に適当な樹脂を塗布することなどの技術
が組合せ可能である。
That is, shrinkage of the nonwoven fabric is performed before or after high-speed fluid flow treatment, and a resin liquid such as a polyurethane elastomer is applied after high-speed fluid flow treatment, and the resin is applied around the fibers or fiber bundles by wet coagulation or dry coagulation. It is possible to combine techniques such as subjecting both sides of a thick non-woven fabric to a high-speed fluid flow treatment followed by slicing in an appropriate step, or applying an appropriate resin before embossing or pressing.

その2はその1と同様ニードルパンチした絡合不織布と
した後、多成分系繊維の海成分に対する溶剤で、島成分
に対しては非溶剤である液体により海成分を溶解除去し
たシートに、片面から高速流体流を噴き当てて主として
表面の超極細繊維束をフィブリル化絡合させて緻密な表
面をもつシートとし、次いで高速流体流で処理した面を
型押しもしくはプレスし、高速流体流で処理していない
面をバフして本発明のシート状物とする方法である。こ
の方法のおいてもその1と同様人工皮革の既存の技術と
の組合せを自由に行なうことができる。すなわち不織布
を収縮させること,海成分の除去前にポリビニルアルコ
ールなどの仮固定性高分子を付与し,その後の適当な工
程で抽出除去すること,高速流体流処理後に仮固定性高
分子および/またはポリウレタンエラストマーなどの樹
脂を付与し、湿式凝固もしくは乾式凝固させ、次いで仮
固定性高分子を抽出除去すること,型押しまたはプレス
前に適当な樹脂を付与しておくこと、両面に高速流体流
処理を行ないその後の適当な工程でスライスすることな
どの技術が使用可能である。またこの方法において海成
分除去時の寸法安定性を良くするために海成分除去の前
後とも高速流体流処理を行なうことも可能である。
Part 2 is the same as in Part 1, after making an entangled nonwoven fabric by needle punching, one side is attached to a sheet in which the sea component has been dissolved and removed using a liquid that is a solvent for the sea component of the multicomponent fiber and a non-solvent for the island component. A high-speed fluid stream is applied to the sheet to fibrillate and entangle mainly the ultrafine fiber bundles on the surface to form a sheet with a dense surface.The surface treated with the high-speed fluid stream is then embossed or pressed and treated with a high-speed fluid stream. In this method, the untreated surface is buffed to form the sheet-like product of the present invention. Similar to Part 1, this method can also be freely combined with existing artificial leather techniques. In other words, shrinking the nonwoven fabric, applying a temporary fixing polymer such as polyvinyl alcohol before removing the sea component and extracting it in a subsequent appropriate process, and applying the temporary fixing polymer and/or after high-speed fluid flow treatment. Applying a resin such as polyurethane elastomer, wet coagulation or dry coagulation, then extracting and removing the temporary fixing polymer, applying an appropriate resin before embossing or pressing, and high-speed fluid flow treatment on both sides. Techniques such as performing slicing and slicing in an appropriate subsequent step can be used. In addition, in this method, it is also possible to perform high-speed fluid flow treatment both before and after removing the sea component in order to improve the dimensional stability during the removal of the sea component.

すなわち本発明の表裏両面使用可能なシート状物を得る
には、超極細繊維フィブリル化絡合構造、1次繊維束、
2次繊維束の構造を形成するために高速流体流の噴き当
て処理と海成分の溶解除去処理が重要であり、特に高速
流体流の噴き当て方が重要である。
That is, in order to obtain the sheet-like product of the present invention that can be used on both the front and back sides, an ultrafine fiber fibrillated entangled structure, a primary fiber bundle,
In order to form the structure of the secondary fiber bundle, the spraying treatment of high-speed fluid flow and the treatment of dissolving and removing sea components are important, and the method of spraying the high-speed fluid flow is particularly important.

高速流体流に用いられる流体としては、水が最も好まし
いが、目的に応じて有機溶剤やアルカリ、酸の水溶液な
ども用い得る。かかる流体は高圧ポンプにより圧力をか
け、孔径の小さいノズルもしくは間隔の狭いスリットか
ら噴射させて、高速の柱状流あるいはカーテン流として
、不織布シートの面に噴き当てる。圧力条件は海成分が
存在するその1の方法では、海成分の割裂およひ超極細
繊維のフィブリル化の両作用を必要とするので,比較的
高い圧力条件を要し、70〜kg/cm範囲が好ましい
。一方、海成分が存在しないその2の方法では、海成分
の割裂は必要でないため、比較的低い圧力条件で良く5
〜100kg/cm程度が良好な範囲である。噴き当て
による打撃軌跡を避けるため、噴出ノズルとシートを相
対的に動かす方法や通し回数を重ねる方法またはパルス
流による方法は有効である。
Although water is most preferable as the fluid used for high-speed fluid flow, organic solvents, aqueous solutions of alkalis, acids, etc. may also be used depending on the purpose. The fluid is pressurized by a high-pressure pump and is injected from a nozzle with a small hole diameter or a slit with narrow intervals, and is sprayed onto the surface of the nonwoven fabric sheet as a high-speed columnar flow or curtain flow. Regarding the pressure conditions, the first method in which a sea component is present requires both the splitting of the sea component and the fibrillation of the ultra-fine fibers, so relatively high pressure conditions are required, and the pressure is 70 to 70 kg/cm. A range is preferred. On the other hand, in the second method where there is no sea component, splitting of the sea component is not necessary, so it is possible to 5
A good range is about 100 kg/cm. In order to avoid the impact locus caused by the spray abutment, it is effective to move the jet nozzle and the sheet relatively, to increase the number of passes, or to use a pulsed flow.

かかる高速流体流を噴き当てることにより最初2次繊維
束構造のみであった繊維構造が、噴き当ての影響をうけ
やすい表面に近い部分は1次繊維束に分割され、かつ液
圧を直接うける表面および表面近傍は1次繊維束がさら
に分割されて超極細繊維がフィブリル化し、該フィブリ
ルは絡合して極めて緻密な表面を形成し、その後の型押
しもしくはブレスにより銀面化できる。一方、2次繊維
束の面はバフ操作により開繊,立毛化し,スエード調表
面となる。
By spraying such a high-speed fluid flow, the fiber structure, which was initially composed of only secondary fiber bundles, is divided into primary fiber bundles in the areas near the surface that is easily affected by the spray, and the surface that is directly exposed to the liquid pressure is divided into primary fiber bundles. In the vicinity of the surface, the primary fiber bundle is further divided and the ultrafine fibers are fibrillated, and the fibrils are intertwined to form an extremely dense surface, which can be grained by subsequent embossing or pressing. On the other hand, the surface of the secondary fiber bundle is opened and raised by buffing, resulting in a suede-like surface.

型押しもしくはプレスの条件は繊維素材と樹脂素材の特
性から決めれば良く,特に制限はない。
The conditions for embossing or pressing may be determined based on the characteristics of the fiber material and resin material, and are not particularly limited.

通常100〜250℃の温度で,圧力のかかる条件で行
なわれる。型押しもしくはプレス前に適当な樹脂を付与
する場合は,ポリウレタン樹脂,塩ビ系樹脂,ポリビニ
ルブチラール樹脂,ポリアクリル酸樹脂,ポリアミノ酸
樹脂,シリコン樹脂やこれらの混合物もしくは共重合体
などが用いられる。
It is usually carried out at a temperature of 100 to 250°C under pressure conditions. When applying a suitable resin before embossing or pressing, polyurethane resins, vinyl chloride resins, polyvinyl butyral resins, polyacrylic acid resins, polyamino acid resins, silicone resins, and mixtures or copolymers thereof are used.

上記により得られる本発明の表裏両面使用可能なシート
状物は,仕上樹脂の塗布処理,染色処理,撥水処理,揉
み処理などの高次加工処理を行なって高品位化して商品
価値を高め,天然皮革が用いられている衣料用途、靴用
途,資材用途などの各種用途に適用できる。この場合,
銀面調表面と立毛調表面を自在に使用して従来にないデ
ザインが創造できるのは言うまでもない。
The sheet-like product of the present invention, which can be used on both the front and back sides, obtained as described above is subjected to advanced processing such as finishing resin coating, dyeing, water repellent treatment, and rubbing to improve its quality and increase its commercial value. It can be applied to various applications where natural leather is used, such as clothing, shoes, and materials. in this case,
It goes without saying that unprecedented designs can be created by freely using the silver-like surface and the raised-like surface.

以下本発明を実施例にて詳しく説明する。部および%は
全て重量に関するものである。
The present invention will be explained in detail below with reference to Examples. All parts and percentages are by weight.

実施例1 特開昭54−125718の海島型多成分系繊維用紡糸
口金を用いて,島成分をポリエチレンテレフタレート、
海成分をポリスチレン(島/ 海比率60/40)とし
、海成分中に16本の島が存在するような海島構造が,
さらに16本集まつて1個のポリスチレンの海に囲まれ
た断面をもつ多成分系繊維(島/全海比率=48/52
)を紡糸し,2.5倍に延伸,クリンプ,カットの各工
程により3.8デニール×51mmのステープルファイ
バーを得た。
Example 1 Using the island-in-sea type multi-component fiber spinneret disclosed in JP-A-54-125718, the island components were made of polyethylene terephthalate, polyethylene terephthalate,
The ocean component is polystyrene (island/sea ratio 60/40), and the sea-island structure has 16 islands in the ocean component.
In addition, 16 fibers are gathered together to form a multicomponent fiber with a cross section surrounded by a sea of polystyrene (island/total sea ratio = 48/52
) was spun, and a staple fiber of 3.8 denier x 51 mm was obtained through the steps of stretching 2.5 times, crimping, and cutting.

島成分1本は0.007デニールの超極細繊維となって
いた。このステープルファイバーを開綿,カード,クロ
スラッパー,ニードルパンチの各工程を通し不織布とし
た。該不織布の片面に,直径0.1mmの孔が0.6m
m間隔で1列に並んだ噴射ノズルから、圧力100kg
/’an’で柱状水流を噴き当てる処理を3回繰り返し
、その後乾燥した。次いでポリエステル系ポリウレタン
の15%ジメチルホルムアミド溶液を水流を噴き当てて
いない側から含浸し,水で湿式凝固後乾燥したシートに
,2液ポリウレタンをグラビアコーターで4 g/m2
塗布し,160℃で皮革様シボの彫刻されたエンボスロ
ールで型押しして銀面とした後、トリクロルエチレンで
処理して多成分系繊維の海成分を除去した。さらに裏面
を150メッシュのサンドペーパーでバフして立毛表面
とした後,銀面に顔料を含有したポリウレタン系仕上剤
をグラビアコーターで2g/m塗布し120℃で1時間
高温染色機で揉みを加えて染色し,本発明の一面が銀面
調で,他の一面は立毛調のシート物を得た。走査型電子
顕微鏡で柱状水流処理後の不織布を観察したところ, 
明らかに表面は超極細繊維がフイブリル化して絡合し、
次いで超極細繊維が16本集束した1次繊維束が見え,
その下は1次繊維束がさらに16本集束した2次繊維束
主体の絡合層となっていた。さらに仕上ったシート状物
の一方の表面はエンボスによりフイブリル化した繊維と
それをとりまく樹脂が一体化した銀面となっており,そ
の下に1次繊維束とポリウレタン多孔質の部分、次いで
2次繊維束とポリウレタン多孔質の層が裏面まで続いて
いることが観祭された。他の一方は優美な立毛が密生し
たスエード調表面となっており,立毛は2次繊維束に連
続していた。
One island component was an ultra-fine fiber of 0.007 denier. This staple fiber was made into a nonwoven fabric through the steps of opening, carding, cross-wrapping, and needle punching. On one side of the nonwoven fabric, there are holes of 0.6 m with a diameter of 0.1 mm.
Pressure 100 kg from injection nozzles lined up in a row at m intervals
/'an' spraying with a columnar water stream was repeated three times, followed by drying. Next, a 15% dimethylformamide solution of polyester-based polyurethane was impregnated from the side not sprayed with water, and after wet coagulating with water, the dried sheet was coated with two-component polyurethane at 4 g/m2 using a gravure coater.
It was coated and embossed at 160° C. with an embossing roll engraved with leather-like grain to give a silver surface, and then treated with trichlorethylene to remove the sea component of the multicomponent fiber. Furthermore, after buffing the back side with 150 mesh sandpaper to create a raised surface, 2g/m of a polyurethane finish containing pigment was applied to the silver surface using a gravure coater, and then rubbed at 120℃ for 1 hour using a high-temperature dyeing machine. A sheet product according to the present invention was obtained in which one side had a silvery finish and the other side had a raised look. When we observed the nonwoven fabric after columnar water treatment using a scanning electron microscope, we found that
Obviously, the surface is fibrillated and entangled with ultra-fine fibers,
Next, a primary fiber bundle consisting of 16 ultra-fine fibers can be seen.
Below that, there was an entangled layer mainly composed of secondary fiber bundles in which 16 primary fiber bundles were further bundled. Furthermore, one surface of the finished sheet has a silver surface in which the fibers fibrillated by embossing and the surrounding resin are integrated, and below that is a primary fiber bundle and a porous polyurethane part, and then a secondary fiber bundle and a porous polyurethane part. It was observed that the fiber bundles and porous layer of polyurethane continued to the back side. The other side had a suede-like surface with dense, elegant naps, and the naps were continuous with secondary fiber bundles.

得られた本発明にかかるシート状物の銀面は、エンボス
による型押しシボと,染色時にうける揉みによるランダ
ムな揉みシボが適度にミックスされ,天然皮革銀面様の
高品位の表面外観をしており,一方,立毛面は天然鹿皮
調のスエードのような気品ある外観を示しており、リバ
ーシブル素材として好適であった。
The silver surface of the obtained sheet-like product according to the present invention has a moderate mix of embossed grains and random rubbed grains caused by rubbing during dyeing, and has a high-quality surface appearance similar to the grain surface of natural leather. On the other hand, the raised surface had an elegant appearance similar to natural deerskin suede, making it suitable as a reversible material.

実施例2 特開昭54−125718の装置において,1つの島成
分流が複数以上に分割されて他の島成分流と合流する機
構の部分として,特公昭53−36182記載の流体混
合器の混合素子(内径10mm)を10段重ねたものを
用いた紡糸装置を作製し,該紡糸装置を用いてナイロン
16の流れとポリスチレンの流れとを、ナイロン6/ポ
リスチレン比率が50/50になるよう上記流体混合器
に導入し,合流分割されたポリマ流は16本に分けられ
,この16本をさらに1個のポリスチレンの海でナイロ
ン6/全ポリスチレン比率が40/60となるよう被覆
する方法により,本発明の多成分系繊維を得た。
Example 2 In the apparatus of JP-A-54-125718, the fluid mixer described in JP-A-53-36182 is used as a part of the mechanism in which one island component flow is divided into a plurality of parts or more and merges with other island component flows. A spinning device using 10 stacked elements (inner diameter 10 mm) was fabricated, and the spinning device was used to combine the flow of nylon 16 and the flow of polystyrene so that the nylon 6/polystyrene ratio was 50/50. Introduced into a fluid mixer, the merged and split polymer stream is divided into 16 streams, and these 16 streams are further coated with one polystyrene seam so that the nylon 6/total polystyrene ratio is 40/60. A multicomponent fiber of the present invention was obtained.

該多成分系繊維の断面はナイロン6の微細な約400の
島がポリスチレンの海に囲まれた海島構造が,さらに1
6本集まって1個のポリスチレンの海に囲まれた構造と
なっていた。6デニール×51mmのステーブルとした
ものの島成分の1本は、平均0.0004デニールの超
極細繊維となっていた。
The cross section of the multicomponent fiber has a sea-island structure in which about 400 fine islands of nylon 6 are surrounded by a sea of polystyrene, and one more.
Six pieces were assembled into a single structure surrounded by a sea of polystyrene. One of the island components of the 6 denier x 51 mm stable was an ultrafine fiber with an average size of 0.0004 denier.

このステープルファイバーを,カード、クロスラツパー
.ニードルパンチの各工程を通し不織布とした。該不織
布に5%のポリビニルアルコール水溶液を付与し乾燥し
て収縮させた後,パークロルエチレンで処理して多成分
系繊維の海成分を溶解除去した。次いで熱水をシャワリ
ングしてポリビニルアルコールを除去した後、直径0.
 1mmの孔が0. 6 mm間隔で1列に並んだ噴躬
ノズルから、圧力60kg/cmで柱状水流を両面に3
回ずつ噴き当てて乾燥した。続いて10%のポリウレタ
ンエマルジョン液を含浸して乾燥後,スライスにより2
枚のシートに分割し,それぞれの水流処理面にポリウレ
タンを5g/m2グラビアコーターで塗布し,150℃
で皮革様シボの彫刻されたエンボスロールで型押しをし
、水流処理をしていない面をバフ掛けして立毛面とし、
次いで含金染料を用いて100℃で1時間の染色を行な
ったあと,タンブラーで揉み加工を行なって本発明のシ
ート状物を得た。走査型電子顕微鏡で柱状水流処理後の
不織布を観察したところ、実施例1の本発明例と同様表
面は超極細繊維がフィブリル化絡合しており、次いで超
極細繊維が集束した1次繊維束、さらに1次繊維束が1
6本集束した2次繊維束の構造になっていた。表面の超
極細繊維の絡合状態は,実施例1で見られたよりさらに
緻密であった。仕上つたシート状物についてはこのよう
な繊維構造にポリウレタンが付着しており、一方の表面
はエンボスにより超極細繊維とそれをとりまくポリウレ
タン樹脂が一体化して銀面を形成しているような構造に
なっていた。他の表面は2次繊維束が開繊した立毛が密
生したスエード調表面となっていた。
This staple fiber is carded and cross-strapped. It was made into a nonwoven fabric through each step of needle punching. A 5% polyvinyl alcohol aqueous solution was applied to the nonwoven fabric, which was dried and shrunk, and then treated with perchlorethylene to dissolve and remove the sea component of the multicomponent fibers. Next, after removing the polyvinyl alcohol by showering with hot water, the diameter of 0.
1mm hole is 0. Three columnar water streams were emitted on both sides at a pressure of 60 kg/cm from jet nozzles arranged in a row at 6 mm intervals.
It was sprayed several times and dried. Next, after impregnating with a 10% polyurethane emulsion and drying, slice the
Divide into sheets, apply 5g/m2 of polyurethane to each water treatment surface using a gravure coater, and heat to 150°C.
Embossed with an embossed roll with leather-like grain, then buffed the surface that had not been water-treated to create a raised surface.
Next, after dyeing with a metal-containing dye at 100° C. for 1 hour, the material was rolled in a tumbler to obtain a sheet-like product of the present invention. When the nonwoven fabric after the columnar water jet treatment was observed with a scanning electron microscope, it was found that the surface was fibrillated and entangled with ultra-fine fibers, as in the present invention example of Example 1, and then there were primary fiber bundles of aggregated ultra-fine fibers. , furthermore, the primary fiber bundle is 1
It had a structure of a bundle of six secondary fibers. The entangled state of the ultrafine fibers on the surface was even more dense than that seen in Example 1. For finished sheet-like products, polyurethane is attached to such a fiber structure, and one surface has a structure in which the ultra-fine fibers and the surrounding polyurethane resin are integrated by embossing to form a silver surface. It had become. The other surface had a suede-like surface with dense naps made of opened secondary fiber bundles.

得られた本発明のシートの銀面にエンボスによる型押シ
ボと,タンブラー揉み加工によるランダムな揉みシボが
適度にミックスされ,羊皮調の高品位の表面外観をして
おり,また他方の立毛面は高級カーフスエード調の気品
ある外観を示しており,リバーシブル素材に好適であっ
た。
The resulting silver surface of the sheet of the present invention has a moderate mix of embossed textures and random textured textures produced by tumbler rolling, giving it a high-quality sheepskin-like surface appearance. It has an elegant appearance similar to high-quality calf suede, making it suitable for reversible materials.

実施例3 実施例1および実施例2の本発明例で用いた紡糸方法お
よび特公昭47−37648記載の紡糸方法を用いて、
第1表に示す原料および成分比率を用いて本発明の多成
分系繊維を得た。これらの繊維を用いてカード,クロス
ラッパー,ニードルパンチの各工程を通し不織布とした
後,その片面に直径0. 1mmの孔が0. 6 mm
間隔で1例に並んだ噴射ノズルから,圧力100kg/
cm2で高速柱状水流を噴き当てて乾燥し,トリクロル
エチレンにより海成分を溶解除去した。さらに同様の噴
き当て処理を圧力70kg/cm2として,先に噴き当
てを行なったと同じ面に施し,乾燥した後,ポリウレタ
ン溶液をグラビアコーターで塗布し,170℃のエンボ
スロ−ルにより型押し加工を行ない表面をダンドペーパ
ーでバフ掛けして立毛表面とした後.実施例4、5につ
いては120℃,1時間の液流染色,実施例6について
は100℃,1時間の液流染色を行なつた。得られた本
発明のシート状物は,実施例1、2の本発明例と同様の
超極細繊維のフィブリル化絡合とそれをとりまくポリウ
レタン樹脂が一体化して成る銀面層、次いで超極細繊維
て集束した1次繊維束,さらに1次繊維束が集束した2
次繊維束、そして2次繊維束から開繊した緻密な立毛の
構造となっていた。
Example 3 Using the spinning method used in the invention examples of Example 1 and Example 2 and the spinning method described in Japanese Patent Publication No. 47-37648,
Multicomponent fibers of the present invention were obtained using the raw materials and component ratios shown in Table 1. After using these fibers to make a nonwoven fabric through carding, cross-wrapping, and needle punching processes, one side of the fabric is coated with a diameter of 0. 1mm hole is 0. 6mm
From injection nozzles lined up at intervals, a pressure of 100 kg/
It was dried by spraying a high-speed columnar water stream at cm2, and the sea component was dissolved and removed using trichlorethylene. Further, the same spraying treatment was performed at a pressure of 70 kg/cm2 on the same surface as previously sprayed, and after drying, a polyurethane solution was applied using a gravure coater, and embossing was performed using an embossing roll at 170°C. After buffing the surface with Dando paper to create a raised surface. For Examples 4 and 5, jet dyeing was performed at 120° C. for 1 hour, and for Example 6, jet dyeing was performed at 100° C. for 1 hour. The obtained sheet-like product of the present invention consists of a grain layer consisting of a fibrillated entanglement of ultra-fine fibers and a polyurethane resin surrounding the same as in the present invention examples of Examples 1 and 2, and then a grain layer formed by integrating the fibrillated entanglement of ultra-fine fibers and a polyurethane resin surrounding the fibrillated entanglement, followed by a layer of ultra-fine fibers. The primary fiber bundles are bundled together, and the secondary fiber bundles are further bundled.
It had a structure of a secondary fiber bundle and a dense napped structure that was opened from the secondary fiber bundle.

これら本発明のシート状物はそれそれエンボスロールに
よる型押しシボと,液流染色での揉み作用によるシボが
適度にミックスされ,天然皮革様の自然な感じのする表
面外観をしている銀面と,鹿皮調の立毛表面を表裏に有
しており,本発明の目的を達していた。
Each of these sheet-like products of the present invention has an appropriate mix of embossed grains created by embossing rolls and grains created by the rubbing action of jet dyeing, and has a silver surface with a natural surface appearance similar to natural leather. It had a buckskin-like raised surface on the front and back, and the object of the present invention was achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図,第2図および第3図は本発明で用い得る多成分
系繊維1本の断面図である。第4図は本発明のシート状
物の断面概念図である。
FIGS. 1, 2, and 3 are cross-sectional views of one multicomponent fiber that can be used in the present invention. FIG. 4 is a conceptual cross-sectional view of the sheet-like product of the present invention.

Claims (3)

【特許請求の範囲】[Claims] (1)一方の表面が銀面調表面となっており、他方の表
面が立毛調表面となっているシート状物質において、0
.2デニール以下の超極細繊維、該超極細繊維が多数本
集まった超極細繊維束(1次繊維束と称する)、および
該1次繊維束がさらに多数本集まった繊維束(2継繊維
束と称する)から主としてなる繊維質シートであって、
シートの厚み方向に対し、1次繊維束から枝別れした徴
極細繊維がフイブリル化絡合した構造を主体とする銀面
調表面から1次繊維束が主として絡合した構造を経て、
さらに2次繊維束が主として絡合した構造に至り,遂に
は2次繊維束から開繊された立毛によつて主として覆わ
れた立毛調表面となつているような表面および断面構造
を有することを特徴とする表裏両面使用可能なシート状
物質。
(1) In a sheet-like material in which one surface has a grain-like surface and the other surface has a raised-like surface, 0
.. Ultra-fine fibers of 2 denier or less, ultra-fine fiber bundles made up of many of these super-fine fibers (referred to as primary fiber bundles), and fiber bundles made of even more of these primary fiber bundles (referred to as secondary fiber bundles) A fibrous sheet mainly consisting of
In the thickness direction of the sheet, the primary fiber bundles pass through a structure in which the primary fiber bundles are mainly entangled from the silvery surface, which is mainly composed of fibrillated and entangled structure of characteristic ultrafine fibers branched from the primary fiber bundles.
Furthermore, the secondary fiber bundles reach a structure in which they are mainly entangled, and finally have a surface and cross-sectional structure that becomes a napped-like surface mainly covered by napped fibers opened from the secondary fiber bundles. A sheet material that can be used on both sides.
(2)少なくとも銀面調表面および/またはシート内部
の空隙部分に樹脂が存在することを特徴とする特許請求
の範囲第(1)項に記載の表裏両面使用可能なシート状
物質。
(2) A sheet-like material that can be used on both the front and back sides according to claim (1), characterized in that a resin is present at least on the grain-like surface and/or in the voids inside the sheet.
(3)少なくとも下記(イ)〜(ホ)の各工程を組み合
わせることを特徴とする表裏両面使用可能なシート状物
質の製造方法。 (イ)少なくとも2種の高分子物質からなる海島型繊維
であって,多数の島成分と海成分とからなる海島構造の
複数個が更に1個に囲まれており,全海成分除去後は,
0.2デニール以下の超極細繊維が多数本集まってなる
超極細繊維束(1次繊維束)が更に複数本集まって2次
繊維束を形成するような構造の多成分系繊維が三次元絡
合した構造を有する繊維質シートを得る工程。 (ロ)繊維質シートの少なくと一方の表面に高速の流体
流を噴き当てる工程。 (ハ)多成分系繊維の海成分を、溶解または分解除去す
る工程。 (ニ)流体流を噴き当てた一の面を型押し、もしくはプ
レスする工程。 ■型押し,もしくはプレスをした面と逆の面をバフして
超極細繊維の立毛表面とする工程。
(3) A method for producing a sheet material that can be used on both sides, characterized by combining at least the following steps (a) to (e). (b) A sea-island type fiber made of at least two types of polymeric substances, in which a plurality of sea-island structures made of a large number of island components and a sea component are further surrounded by one fiber, and after removing all the sea components, ,
Three-dimensional entanglement of multicomponent fibers with a structure in which a large number of ultrafine fibers of 0.2 denier or less are gathered together (primary fiber bundle), and a plurality of ultrafine fiber bundles are further gathered to form a secondary fiber bundle. A process of obtaining a fibrous sheet having a combined structure. (b) A step of spraying a high-speed fluid stream onto at least one surface of the fibrous sheet. (c) A step of dissolving or decomposing and removing the sea component of the multicomponent fiber. (d) A process of embossing or pressing one side onto which a fluid stream has been applied. ■The process of buffing the side opposite to the embossed or pressed side to create a raised surface of ultra-fine fibers.
JP57153827A 1982-09-06 1982-09-06 Sheet substance capable of using front and back surfaces and production thereof Granted JPS5943158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57153827A JPS5943158A (en) 1982-09-06 1982-09-06 Sheet substance capable of using front and back surfaces and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57153827A JPS5943158A (en) 1982-09-06 1982-09-06 Sheet substance capable of using front and back surfaces and production thereof

Publications (2)

Publication Number Publication Date
JPS5943158A true JPS5943158A (en) 1984-03-10
JPS62259B2 JPS62259B2 (en) 1987-01-07

Family

ID=15570950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57153827A Granted JPS5943158A (en) 1982-09-06 1982-09-06 Sheet substance capable of using front and back surfaces and production thereof

Country Status (1)

Country Link
JP (1) JPS5943158A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381392U (en) * 1989-12-11 1991-08-20
WO2015045367A1 (en) * 2013-09-30 2015-04-02 株式会社クラレ Napped artificial leather and manufacturing method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4506471B2 (en) * 2004-01-14 2010-07-21 東レ株式会社 Method for producing leather-like sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381392U (en) * 1989-12-11 1991-08-20
WO2015045367A1 (en) * 2013-09-30 2015-04-02 株式会社クラレ Napped artificial leather and manufacturing method therefor
CN105593432A (en) * 2013-09-30 2016-05-18 可乐丽股份有限公司 Napped artificial leather and manufacturing method therefor
JPWO2015045367A1 (en) * 2013-09-30 2017-03-09 株式会社クラレ Napped-toned artificial leather and method for producing the same

Also Published As

Publication number Publication date
JPS62259B2 (en) 1987-01-07

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