JPH022993B2 - - Google Patents
Info
- Publication number
- JPH022993B2 JPH022993B2 JP58071744A JP7174483A JPH022993B2 JP H022993 B2 JPH022993 B2 JP H022993B2 JP 58071744 A JP58071744 A JP 58071744A JP 7174483 A JP7174483 A JP 7174483A JP H022993 B2 JPH022993 B2 JP H022993B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- artificial leather
- base layer
- cracks
- coating layer
- 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 - Lifetime
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Description
【発明の詳細な説明】
本発明は、引張つても表面の凹凸模様が消失せ
ず、光沢感の変化がなく、かつ優れた透湿性を有
する人工皮革の製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing artificial leather that does not lose its uneven surface pattern even when stretched, does not change its glossiness, and has excellent moisture permeability.
従来より、繊維質の基体層の上に表面被覆層を
設けたシート物は、風合が天然皮革に類似してい
るため人工皮革として使用されている。そして、
このような人工皮革を外観においても天然皮革様
とするために、その表面をエンボス加工して凹凸
模様を付与する方法が用いられている。しかしな
がら、従来の人工皮革は、表面被覆層が連続した
ものであるため、わずかに引張られても表面の凹
凸が消失し、平滑化してしまうこととなる。そし
てこのような人工皮革を靴や鞄等の二次製品に加
工した場合には、表面が平滑化されたいわゆるビ
ニール調外観を呈する部分が存在することとな
り、商品価値を大きく低下させることとなる。さ
らに従来の人工皮革は、上述したように、表面被
覆層が連続したものであるため、その透湿性は専
ら表面被覆層を通過できる湿気の量により決定さ
れており、表面被覆層として極めて高い透湿性を
有する素材からなるものを用いなければ十分な透
湿性を有するものが得られないという欠点を有し
ていた。 BACKGROUND OF THE INVENTION Conventionally, sheet products having a surface coating layer provided on a fibrous base layer have been used as artificial leather because their texture is similar to natural leather. and,
In order to make such artificial leather look like natural leather, a method is used in which the surface is embossed to give it an uneven pattern. However, since conventional artificial leather has a continuous surface coating layer, even if it is slightly stretched, the surface unevenness disappears and becomes smooth. When such artificial leather is processed into secondary products such as shoes and bags, there will be parts with a smoothed surface that has a so-called vinyl-like appearance, which will greatly reduce the product value. . Furthermore, as mentioned above, conventional artificial leather has a continuous surface coating layer, so its moisture permeability is determined exclusively by the amount of moisture that can pass through the surface coating layer, and the surface coating layer has extremely high permeability. It has the disadvantage that a material with sufficient moisture permeability cannot be obtained unless it is made of a moisture-permeable material.
本発明は、引張つても表面のエンボス模様が消
失せずに残り、かつ表面被覆層として用いた素材
にかかわらず十分な透湿性を有する人工皮革を提
供するにある。 An object of the present invention is to provide artificial leather in which the embossed pattern on the surface remains even when stretched, and has sufficient moisture permeability regardless of the material used as the surface coating layer.
すなわち本発明は、エンボス加工された表面被
覆層と基体層からなる人工皮革の製造において、
基体層の表面に機械的変形により亀裂を形成する
樹脂あるいは樹脂組成物の下地層を付与し、エン
ボス加工して表面に凹凸模様を形成し、該凹凸模
様の凸部に亀裂を生じない樹脂あるいは樹脂組成
物の凸部被覆層を付与した後、機械的変形を与え
ることにより該凹凸模様の凹部に亀裂を形成せし
めることを特徴とする鮮明模様を有する透湿性人
工皮革の製造法である。 That is, the present invention provides the following steps in the production of artificial leather consisting of an embossed surface coating layer and a base layer:
A base layer of a resin or resin composition that forms cracks by mechanical deformation is applied to the surface of the base layer, and an uneven pattern is formed on the surface by embossing, and a resin or resin that does not cause cracks in the convex portions of the uneven pattern is applied. This is a method for producing a moisture-permeable artificial leather having a clear pattern, which comprises applying a convex portion coating layer of a resin composition and then applying mechanical deformation to form cracks in the concave portions of the concavo-convex pattern.
本発明の方法で製造した人工皮革では、エンボ
ス模様の凹部、すなわち表面からは比較的目立た
ない部分に連続または非連続の亀裂が形成されて
おり、したがつて仕上面の外観がほとんど損なわ
れることなしに透湿性および通気性が高められて
おり、かつ亀裂が凸部を囲むように亀甲状に存在
しているため、個々の凸部を形成している表面被
覆層があたかもそれぞれ独立して存在しているよ
うな状態となつており、したがつて二次製品加工
時に引張つた状態で形成されても、伸長応力が全
凸部に及ばないため、表面の凹凸が消失すること
なく、鮮明に存在していることとなる。 In the artificial leather produced by the method of the present invention, continuous or discontinuous cracks are formed in the recesses of the embossed pattern, that is, in parts that are relatively inconspicuous from the surface, and therefore the appearance of the finished surface is almost impaired. Moisture permeability and air permeability are improved without any problem, and the cracks exist in a tortoise shell shape surrounding the convex parts, making it appear as if the surface coating layers forming each convex part exist independently. Therefore, even if a secondary product is formed under tension during processing, the elongation stress does not reach all the convexities, so the surface irregularities do not disappear and are clearly formed. It means that it exists.
本発明の方法で製造した人工皮革は、前述した
ように、基体層と表面被覆層からなる。基体層と
は、不織布、織布、編布等の繊維集合体、または
これにポリウレタンエラストマー、天然ゴム、合
成ゴム等の弾性ポリマーを含浸させたもの、ある
いはさらにこれらの表面にポリウレタンエラスト
マー、天然ゴム、合成ゴム等の弾性ポリマーから
なる多孔質層または非多孔質層が付与されたもの
の総称であり、本発明ではこれらの内のいずれで
あつてもよいが、好ましくは内部にポリウレタン
エラストマーを多孔質状で含有している絡合不織
布の表面にポリウレタンエラストマーの多孔質層
を被覆したものである。 As described above, the artificial leather produced by the method of the present invention consists of a base layer and a surface coating layer. The base layer is a fiber aggregate such as a non-woven fabric, a woven fabric, or a knitted fabric, or a fabric impregnated with an elastic polymer such as a polyurethane elastomer, natural rubber, or synthetic rubber, or a material that is further impregnated with an elastic polymer such as a polyurethane elastomer, natural rubber, or synthetic rubber on the surface thereof. is a general term for materials provided with a porous layer or a non-porous layer made of an elastic polymer such as synthetic rubber, and in the present invention, any of these may be used, but it is preferable to use a polyurethane elastomer inside the porous layer. A porous layer of polyurethane elastomer is coated on the surface of an entangled nonwoven fabric.
本発明の方法で製造した人工皮革は表面被覆層
に特徴を有している。すなわち、本発明の方法で
製造した人工皮革の表面被覆層にはエンボス加工
により凹凸模様が付与されており、そしてこの凹
凸模様の凸部が凹部に形成された連続または非連
続の亀裂により囲まれているのである。 The artificial leather produced by the method of the present invention is characterized by a surface coating layer. That is, the surface coating layer of the artificial leather produced by the method of the present invention is given an uneven pattern by embossing, and the protrusions of this uneven pattern are surrounded by continuous or discontinuous cracks formed in the recesses. -ing
表面被覆層は下地層と凸部被覆層、あるいはこ
の二層の間にさらに着色剤を添加した着色層を挿
入した多層構造物が好ましい。なお下地層とは、
エンボツシングや機械的変形が付与された場合に
比較的容易に亀裂が生じるような層のことで、た
とえばポリウレタンエラストマー、合成ゴム、天
然ゴム等の弾性ポリマーに無機または有機の充填
材、好ましくは体質顔料が該弾性ポリマーに対し
て20〜250重量％添加されている樹脂組成物から
なる層がその代表として挙げられる。また凸部被
覆層とはエンボス加工により生じた凹凸模様の凸
部のみ、または凸部を重点的に被覆した層のこと
であり、この層はエンボシングや機械的変形によ
り凸部に亀裂が生じないように凸部を補強するた
めのものであり、具体的には弾性ポリマーあるい
はそれに染料や顔料等の着色剤を添加した樹脂組
成物からなる非多孔質層である。さらに下地層と
凸部被覆層の間に存在している着色層は、人工皮
革に所望の色彩を与えるためのものであり、通
常、弾性ポリマーと染料、顔料等の着色剤、そし
て必要により上述したような充填材、好ましくは
体質顔料を添加した樹脂組成物からなるものであ
る。 The surface coating layer is preferably a multilayer structure in which a base layer and a convex portion coating layer are inserted, or a colored layer containing a coloring agent is inserted between these two layers. The underlying layer is
A layer that cracks relatively easily when subjected to embossing or mechanical deformation, such as an elastic polymer such as polyurethane elastomer, synthetic rubber, or natural rubber, with an inorganic or organic filler, preferably an extender pigment. A representative example thereof is a layer made of a resin composition in which 20 to 250% by weight of is added to the elastic polymer. In addition, the convex part coating layer is a layer that covers only the convex parts of the concave-convex pattern caused by embossing, or a layer that mainly covers the convex parts, and this layer does not cause cracks in the convex parts due to embossing or mechanical deformation. Specifically, it is a non-porous layer made of an elastic polymer or a resin composition to which a coloring agent such as a dye or pigment is added. Furthermore, the colored layer that exists between the base layer and the convex part covering layer is for giving the artificial leather a desired color, and usually contains an elastic polymer, coloring agents such as dyes and pigments, and if necessary, the above-mentioned coloring layer. It consists of a resin composition to which a filler such as that described above is added, preferably an extender pigment.
なお本発明の方法で製造した人工皮革におい
て、凸部は凹部に形成された亀裂により囲まれて
いる必要があるが、個々の凸部が完全に亀裂によ
り囲まれている必要はなく、すなわち凸部の周囲
に存在している亀裂は連続であつても非連続であ
つてもよく、さらには個々の凸部がそれぞれ亀裂
により独立している必要はなく、たとえば複数個
の凸部が亀裂により他の凸部から独立またはほぼ
独立しているような形態を有しているものでもよ
い。好ましくは、個々の凸部がそれぞれ亀裂によ
り独立またはほぼ独立しているような形態であ
る。いずれにしても亀裂は凹部のみに存在してい
ることが好ましく、凸部にまで亀裂を生ずると光
沢感を損ない好ましくない。本発明において表面
被覆層は全体として厚さが３〜30μの範囲内であ
るが、天然皮革様の外観、風合等が得られる点で
好ましい。 In the artificial leather produced by the method of the present invention, the convex portions must be surrounded by cracks formed in the concave portions, but it is not necessary that each convex portion be completely surrounded by cracks; The cracks that exist around the area may be continuous or discontinuous, and each protrusion need not be separated by a crack; for example, if multiple protrusions are separated by a crack, It may have a form that is independent or almost independent from other convex parts. Preferably, the individual protrusions are independent or nearly independent due to cracks. In any case, it is preferable that the cracks exist only in the concave portions, and it is not preferable that the cracks occur in the convex portions as it impairs the glossiness. In the present invention, the overall thickness of the surface coating layer is within the range of 3 to 30 .mu.m, which is preferable in that an appearance, feel, etc. similar to natural leather can be obtained.
本発明の人工皮革は種々の方法により得られる
が、好ましい一方法としては、繊維集合体と弾性
ポリマーからなる基体層の表面に、弾性ポリマー
からなる多孔質または非多孔質の表面被覆層を形
成して仕上げるに際し、まず体質顔料の微粉末を
含む弾性ポリマー組成物を基体層の表面に塗布し
て下地層を形成し、次いで凹凸模様のエンボシン
グを加熱状態で施し、続いて着色顔料および必要
に応じて体質顔料を添加した弾性ポリマー組成物
を塗布して表面着色層を形成し、更に必要に応じ
て着色顔料を添加した樹脂組成物を主として凸部
に塗布して凸部被覆層を形成したのち、もみ処理
などの機械的変形を与えることによつて凹部に亀
裂を形成させる方法が挙げられる。 The artificial leather of the present invention can be obtained by various methods, but one preferred method is to form a porous or non-porous surface coating layer made of an elastic polymer on the surface of a base layer made of a fiber aggregate and an elastic polymer. When finishing, first, an elastic polymer composition containing fine powder of extender pigment is applied to the surface of the base layer to form a base layer, and then embossing with an uneven pattern is applied under heating, followed by coloring pigment and as necessary. An elastic polymer composition to which an extender pigment was added was applied to form a surface colored layer, and a resin composition to which a colored pigment was added, if necessary, was applied mainly to the convex parts to form a convex part coating layer. There is a method in which cracks are formed in the recesses by applying mechanical deformation such as massaging treatment.
次に、本発明の方法により製造した人工皮革の
構造を明確にするために、添付の図面によつて説
明する。第１図は本発明の人工皮革の一例であ
る。図中、１は繊維集合体と弾性ポリマーからな
る基体層または該基体層の表面に弾性ポリマーの
多孔質層が付与されてなる基体層である。２は顔
料と弾性ポリマーの組成物からなる下地層、３は
エンボシングで形成した凸部、４は凹部、５は連
続または非連続の亀裂で、該亀裂は凸部を囲むよ
うに形成されている。６は亀裂が基体層に達して
いる状態、７は凸部を補強した凸部被覆層であ
る。第２図は従来の人工皮革の一例であり、１０
は基体層、１２は着色樹脂層、１３は樹脂層、１
４はエンボシングで形成した凸部、１５は凹部で
ある。かかる表面被覆層の状態の相違が引張つた
ときに凹凸模様を消失することなく鮮明に存在し
たものとなる。更に透湿性および通気性も高めら
れたものとなる。特に第１図に示すように、凹部
に形成された亀裂の少くとも一部が基体層の内部
にまで達するものである場合には、人工皮革の通
気性および透湿性が一段と高まり、さらに引張り
により消失しない一層鮮明な凹凸模様が得られる
こととなる。 Next, in order to clarify the structure of the artificial leather produced by the method of the present invention, it will be explained with reference to the attached drawings. FIG. 1 shows an example of the artificial leather of the present invention. In the figure, 1 is a base layer made of a fiber aggregate and an elastic polymer, or a base layer with a porous layer of an elastic polymer provided on the surface of the base layer. 2 is a base layer made of a composition of pigment and elastic polymer; 3 is a convex portion formed by embossing; 4 is a concave portion; 5 is a continuous or discontinuous crack; the crack is formed to surround the convex portion. . 6 is a state in which the crack has reached the base layer, and 7 is a convex portion covering layer that reinforces the convex portion. Figure 2 is an example of conventional artificial leather, with 10
1 is a base layer, 12 is a colored resin layer, 13 is a resin layer, 1
4 is a convex portion formed by embossing, and 15 is a concave portion. This difference in the state of the surface coating layer means that when the surface coating layer is stretched, the uneven pattern clearly exists without disappearing. Furthermore, moisture permeability and air permeability are also improved. In particular, as shown in Figure 1, if at least a portion of the cracks formed in the recesses reach inside the base layer, the breathability and moisture permeability of the artificial leather will further increase, and A clearer uneven pattern that does not disappear can be obtained.
次に本発明を実施例により具体的に説明する
が、本発明はこの実施例に限定されるものではな
い。 EXAMPLES Next, the present invention will be specifically explained with reference to Examples, but the present invention is not limited to these Examples.
実施例
ナイロン−６の極細繊維束の絡合不織布に多孔
質ポリウレタンが含有されて成る厚さ1.5mmの基
体層の表面をバフイングして繊維毛羽とポリウレ
タンの混在した平滑面を得た。この基体層の一面
に、ポリウレタン３重量％およびポリウレタンに
対して40重量％の微細シリカ粉末を添加した組成
物溶液をスプレー法によつて約70ｇ／m2の量で塗
布し、乾燥して下地層を形成した。次いで、直径
１mmの円形の凹部を多数存在させたエンボス板を
使用して、温度120℃でエンボシングし、基体面
に凹凸模様を付与した。更にその面に、白色顔料
および微細シリカ粉末を添加したポリウレタンの
５重量％着色組成物溶液をスプレー法によつて約
100ｇ／m2の量で塗布して着色層を形成した。次
いで、シンナーおよびノンブラツシングシンナー
に白色顔料を添加したニトロセルロースラツカー
を凸部に塗布して乾燥し、凸部被覆層を形成し
た。このようにして得られた人工皮革に機械的も
み処理を施したところ、凹部に細い亀裂が凸部を
囲むように非連続状で発生しており、その大部分
は基体層内部にまで達していた。Example The surface of a 1.5 mm thick base layer made of an entangled nonwoven fabric of nylon-6 ultrafine fiber bundles containing porous polyurethane was buffed to obtain a smooth surface with a mixture of fiber fuzz and polyurethane. On one side of this base layer, a composition solution containing 3% by weight of polyurethane and 40% by weight of fine silica powder relative to the polyurethane is applied by spraying in an amount of about 70g/m 2 , dried and then lowered. Formed geological strata. Next, embossing was performed at a temperature of 120° C. using an embossing plate having a large number of circular concave portions each having a diameter of 1 mm, thereby imparting an uneven pattern to the substrate surface. Furthermore, a 5% by weight solution of a coloring composition of polyurethane to which a white pigment and fine silica powder have been added is applied to the surface by a spray method.
A colored layer was formed by coating in an amount of 100 g/m 2 . Next, a nitrocellulose lacquer prepared by adding white pigment to thinner and non-blushing thinner was applied to the convex portions and dried to form a convex portion coating layer. When the artificial leather obtained in this way was subjected to mechanical kneading treatment, thin cracks were generated discontinuously in the concave parts surrounding the convex parts, and most of them reached inside the base layer. Ta.
また、この人工皮革は、手で引張つても凸部模
様の大部分は鮮明に残つており、亀裂は肉眼では
ほとんど明確に判断することができず外観を損う
ことはほとんどなく、むしろ見た目の柔軟性を示
すものであつた。そしてこの人工皮革の透気度は
27秒／100c.c.、透湿度は2250ｇ／m2／dayであり、
表面被覆層は平均5μの厚さを有していた。 In addition, even when this artificial leather is pulled by hand, most of the convex patterns remain clearly, and cracks cannot be clearly seen with the naked eye, so there is almost no damage to the appearance; It showed flexibility. And the air permeability of this artificial leather is
27 seconds/100c.c., moisture permeability is 2250g/m 2 /day,
The surface coating layer had an average thickness of 5μ.
第１図は本発明に係る鮮明模様を有する透湿性
人工皮革であり、第２図は従来の人工皮革であ
る。
FIG. 1 shows a moisture-permeable artificial leather having a clear pattern according to the present invention, and FIG. 2 shows a conventional artificial leather.
Claims (1)
なる人工皮革の製造において、基体層の表面に機
械的変形により亀裂を形成する樹脂あるいは樹脂
組成物の下地層を付与し、エンボス加工して表面
に凹凸模様を形成し、該凹凸模様の凸部に亀裂を
生じない樹脂あるいは樹脂組成物の凸部被覆層を
付与した後、機械的変形を与えることにより該凹
凸模様の凹部に亀裂を形成せしめることを特徴と
する鮮明模様を有する透湿性人工皮革の製造法。1. In the production of artificial leather consisting of an embossed surface coating layer and a base layer, a base layer of a resin or resin composition that forms cracks due to mechanical deformation is applied to the surface of the base layer, and the surface is embossed. After forming an uneven pattern and applying a coating layer to the convex portions of a resin or resin composition that does not cause cracks to the convex portions of the uneven pattern, mechanical deformation is applied to form cracks in the concave portions of the uneven pattern. A method for producing moisture-permeable artificial leather having a vivid pattern characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7174483A JPS59199874A (en) | 1983-04-22 | 1983-04-22 | Humidity permeable artificial leather having sharp pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7174483A JPS59199874A (en) | 1983-04-22 | 1983-04-22 | Humidity permeable artificial leather having sharp pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59199874A JPS59199874A (en) | 1984-11-13 |
| JPH022993B2 true JPH022993B2 (en) | 1990-01-22 |
Family
ID=13469335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7174483A Granted JPS59199874A (en) | 1983-04-22 | 1983-04-22 | Humidity permeable artificial leather having sharp pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59199874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05116714A (en) * | 1991-10-29 | 1993-05-14 | Daifuku Co Ltd | Rotary shelf with shutter device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2514200B2 (en) * | 1987-03-31 | 1996-07-10 | 帝人株式会社 | Manufacturing method of artificial leather |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5145643B2 (en) * | 1971-10-18 | 1976-12-04 |
-
1983
- 1983-04-22 JP JP7174483A patent/JPS59199874A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05116714A (en) * | 1991-10-29 | 1993-05-14 | Daifuku Co Ltd | Rotary shelf with shutter device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59199874A (en) | 1984-11-13 |
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