JPH0686710B2 - Method for producing synthetic leather with texture - Google Patents
Method for producing synthetic leather with textureInfo
- Publication number
- JPH0686710B2 JPH0686710B2 JP61071622A JP7162286A JPH0686710B2 JP H0686710 B2 JPH0686710 B2 JP H0686710B2 JP 61071622 A JP61071622 A JP 61071622A JP 7162286 A JP7162286 A JP 7162286A JP H0686710 B2 JPH0686710 B2 JP H0686710B2
- Authority
- JP
- Japan
- Prior art keywords
- texture
- adhesive
- skin layer
- fabric
- 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】 （産業上の利用分野） 本発明は、基布の有する生地目と同調して、生地目感が
明瞭に表皮層に発現されている合成皮革の製造方法に関
する。TECHNICAL FIELD The present invention relates to a method for producing synthetic leather in which the texture of the texture is clearly expressed in the epidermis layer in synchronism with the texture of the base fabric.
（従来の技術） 合成皮革は、従来より広範に用いられているが、近年、
例えば、スポーツ用靴のアツパー材として、表面の生地
目感が明瞭に発現されている合成皮革が要望されてい
る。(Prior Art) Synthetic leather has been widely used, but in recent years,
For example, as an upper material for sports shoes, synthetic leather having a surface texture clearly expressed is desired.
従来、かかる生地目感を有する合成皮革の製造方法とし
て、例えば、織布上に塩化ビニル樹脂やポリウレタン等
をトツピング又はコーテイング加工して樹脂層を形成し
た後、これを加熱加圧して、生地目感を発現させる方法
が知られているが、この方法によれば、表面が平滑とな
つて、生地目感に乏しく、また、風合が硬く、例えば、
前記したスポーツ用靴のためのアツパー材としては用い
るに適さない。Conventionally, as a method for producing a synthetic leather having such a texture, for example, a vinyl chloride resin, polyurethane or the like is topped or coated on a woven fabric to form a resin layer, which is then heated and pressed to give a texture. Although a method of expressing a feeling is known, according to this method, the surface is smooth, the feeling of texture is poor, and the texture is hard, for example,
It is not suitable for use as an upper material for the above-mentioned sports shoes.
同様に、織布上に樹脂シートを積層接着した後、織布側
から樹脂シートを吸引し、これを織布の生地目に強制的
に沿わせて、生地目感を発現させる方法も知られてい
る。しかし、この方法によれば、用いる樹脂シートの厚
さが制限され、例えば、厚さ50μｍ以下の樹脂シートを
用いることが困難である。更に、上記の方法による合成
皮革ば、風合及び性能面においても不十分であつて、例
えば、前記したスポーツ用靴のためのアツパー材として
は用いるに適さない。Similarly, there is also known a method in which a resin sheet is laminated and adhered onto a woven fabric, and then the resin sheet is sucked from the woven fabric side to force the resin sheet to follow the texture of the woven fabric to develop the texture of the texture. ing. However, according to this method, the thickness of the resin sheet used is limited, and for example, it is difficult to use a resin sheet having a thickness of 50 μm or less. Further, the synthetic leather produced by the above method is also inadequate in terms of feeling and performance and is not suitable for use as an upper material for sports shoes, for example.
（発明の目的） 本発明は、上記に鑑みてなされたものであつて、織布か
らなる基布上に成膜された樹脂がこの基布の生地目に同
調して明瞭な生地目感をもつ合成皮革の製造方法を提供
することを目的とする。(Object of the invention) The present invention has been made in view of the above, in which a resin formed on a base fabric made of a woven fabric is synchronized with the texture of the base fabric to give a clear texture. An object of the present invention is to provide a method for producing synthetic leather having the same.
（発明の構成） 本発明による生地目感を有する合成皮革の製造方法は、
離型紙上にポリウレタン樹脂溶液を塗布し、乾燥して、
離型紙上に表皮層を形成する第１工程、この表皮層上に
ポリウレタン接着剤を重ねて塗布し、この上に織布から
なる基布を積層した後、上記接着剤を半乾燥半硬化させ
る第２工程、上記離型紙を剥離した後、上記接着剤を介
して表皮層と基布とをゴムロール間で圧着して、原反と
する第３工程、及びこの原反を加熱下に幅方向に延伸し
つつ、乾燥させた後、冷却する第４工程とからなること
を特徴とする。(Structure of the Invention) A method for producing a synthetic leather having a textured texture according to the present invention,
Apply the polyurethane resin solution on the release paper, dry,
First step of forming a skin layer on a release paper, a polyurethane adhesive is superposed and applied on the skin layer, a base cloth made of a woven fabric is laminated on the polyurethane adhesive, and the adhesive is semi-dried and semi-cured. Second step, after the release paper is peeled off, the surface layer and the base cloth are pressure-bonded between the rubber rolls via the adhesive to form an original fabric, and a third process, and the original fabric is heated in the width direction. It is characterized in that it comprises a fourth step in which the film is stretched, dried and then cooled.
以下に図面に基づいて、本発明の方法を説明する。The method of the present invention will be described below with reference to the drawings.
本発明の方法においては、先ず、第１工程として、第１
の塗布位置１にて適宜手段によつて離型紙２上にポリウ
レタン樹脂溶液を塗布し、乾燥機３に導いて、加熱乾燥
し、表皮層を形成する。次いで、第２工程として、第２
の塗布位置４にて適宜手段にてポリウレタン接着剤を上
記表皮層上に重ねて塗布し、この上に織布からなる基布
５を積層した後、乾燥機６に導いて、接着剤を半乾燥半
硬化させる。ここに、用いる接着剤は速硬化性であるこ
とが好ましく、従つて、例えば、二液型接着剤が好適で
ある。尚、接着剤の塗布量は、用いる基布にもよるが、
通常、50〜150g/m2、好ましくは80〜120g/m2程度であ
る。厳密には用いる基布に応じて最適量が決定されるべ
きであり、上記範囲に限定されるものではない。In the method of the present invention, first, the first step is the first step.
A polyurethane resin solution is applied onto the release paper 2 at an application position 1 by an appropriate means, is guided to a dryer 3, and is heated and dried to form a skin layer. Then, as the second step, the second
At a coating position 4 of the above, a polyurethane adhesive is applied by an appropriate means so as to be overlaid on the skin layer, a base cloth 5 made of a woven cloth is laminated thereon, and then the cloth is guided to a dryer 6 so that the adhesive is semi-coated. Dry and semi-cure. The adhesive used here is preferably fast-curing, and therefore, for example, a two-component adhesive is suitable. The amount of adhesive applied depends on the base cloth used,
Usually, it is about 50 to 150 g / m 2 , preferably about 80 to 120 g / m 2 . Strictly speaking, the optimum amount should be determined according to the base fabric used, and is not limited to the above range.
この後、第３工程として、基布５と表皮層と離型紙２と
の積層体から離型紙２を剥離した後、ゴムロール７間に
導いて、第２図に示すように、表皮層８と基布５とを上
記半乾燥半硬化状態の接着剤層９を介して相互に圧着さ
せる。この工程において、接着剤は半乾燥半硬化状態に
あつて、尚、ある程度の流動性を有しているので、表皮
層と基布とはゴムロール間で相互に圧着されると共に、
表皮層は、上記半乾燥の接着剤層を介して織布の有する
生地目に強制的に沿わされ、このようにして、表皮層に
生地目が明瞭に転写される。Then, as a third step, after releasing the release paper 2 from the laminate of the base cloth 5, the skin layer and the release paper 2, the release paper 2 is guided between the rubber rolls 7 and, as shown in FIG. The base cloth 5 and the base cloth 5 are pressed against each other via the adhesive layer 9 in the semi-dry and semi-cured state. In this step, the adhesive is in a semi-dry and semi-cured state, and since it has a certain degree of fluidity, the skin layer and the base cloth are pressed against each other between the rubber rolls,
The skin layer is forced to follow the texture of the woven fabric through the semi-dry adhesive layer, and thus the texture is clearly transferred to the skin layer.
上記したように、この第３工程において、接着剤層は半
乾燥半硬化状態にあつて、尚、ある程度の流動性を有し
ていることが必要であり、かかる接着剤層を介して、表
皮層をゴムロールによつて基布に圧着するので、表皮層
と接着剤層とを基布の有する生地目に沿わせることがで
きる。接着剤の硬化性が遅い場合は、ゴムロール間で表
皮層と基布とを相互に圧着させるに際して、接着剤がよ
く流動するので、表皮層及び接着剤層に基布の有する生
地目を保持させることができない。他方、接着剤が乾燥
硬化されているときは、表皮層と基布とをゴムロール感
で圧着しても、接着剤層が弾性を有するので、表皮層を
基布の生地目に十分に沿わせることが困難であり、表皮
層は、生地目を保持することができない。他方、離型紙
を剥離しないで、表皮層と基布とを圧着しても、離型紙
は弾性が強いので、同様に、表皮層が基布の生地目に十
分に沿わない。As described above, in this third step, the adhesive layer is required to be in a semi-dry and semi-cured state and still have a certain degree of fluidity. Since the layer is pressure-bonded to the base cloth with a rubber roll, the skin layer and the adhesive layer can be made to conform to the texture of the base cloth. When the curability of the adhesive is slow, the adhesive flows well when the skin layer and the base fabric are pressed against each other between the rubber rolls, so that the skin layer and the adhesive layer retain the texture of the base fabric. I can't. On the other hand, when the adhesive is dried and cured, the adhesive layer has elasticity even when the outer skin layer and the base cloth are pressure-bonded with a rubber roll feeling, so that the outer skin layer is sufficiently aligned with the texture of the base cloth. It is difficult and the epidermis layer cannot hold the texture. On the other hand, even if the release layer is not peeled off and the outer layer and the base fabric are pressure-bonded, the release sheet has a strong elasticity, and similarly, the outer layer does not sufficiently follow the texture of the base fabric.
このようにして、第３工程によつて得られた原反10は、
次いで、第４工程において、これを加熱延伸機11に導い
て、加熱下にその幅方向に延伸しつつ、接着剤を乾燥硬
化させた後、冷却する。この工程においては、原反を加
熱下に延伸することによつて、織布の縦糸と横糸の交点
が隆起し、表皮層における生地目感が助長されると共
に、接着剤が乾燥硬化されて、表皮層に生地目が明瞭に
定着固定される。原反の延伸率は、全幅の５〜20％、好
ましくは10〜15％の範囲である。延伸率が余りに小さい
ときは、表皮層における生地目感の発現が尚、不十分で
あり、他方、余りに大きいときも、表皮層における生地
目感が却つて乏しくなる。In this way, the original fabric 10 obtained by the third step is
Next, in the fourth step, the adhesive is dried and cured while being guided to the heating / stretching machine 11 and being stretched in the width direction under heating. In this step, by stretching the raw fabric under heating, the intersections of the warp and weft of the woven fabric are raised, the texture of the skin layer is promoted, and the adhesive is dried and cured, The texture is clearly fixed and fixed to the epidermis layer. The stretch ratio of the raw fabric is in the range of 5 to 20%, preferably 10 to 15% of the entire width. When the stretching ratio is too small, the appearance of texture in the skin layer is still insufficient. On the other hand, when the stretching ratio is too high, the texture of texture in the skin layer is rather poor.
（発明の効果） 以上のように、本発明の方法によれば、特に、前記した
第３工程において、表皮層と基布とを半硬化状態の接着
剤層を介してゴムロールにて相互に圧着させて、表皮層
を接着剤層を介して基布の有する生地目に強制的に沿わ
させ、この後、第４工程において、原反を更に加熱し、
接着剤を硬化させつつ、原反を延伸して、表皮層におけ
る生地目感を助長しつつ、これを接着剤の乾燥硬化によ
つて定着させる。(Effects of the Invention) As described above, according to the method of the present invention, in particular, in the above-described third step, the skin layer and the base fabric are mutually pressure-bonded by the rubber roll via the semi-cured adhesive layer. Then, the skin layer is forced to follow the texture of the base fabric through the adhesive layer, and then, in the fourth step, the raw fabric is further heated,
While the adhesive is being cured, the raw fabric is stretched to promote the texture of the skin layer, and is fixed by the drying and curing of the adhesive.
従って、本発明の方法によれば、先ず、表皮層に基布の
有する生地目がそのまま立体的に明瞭に発現される。し
かも、本発明の方法によれば、表皮層上に接着剤を塗布
するので、この樹脂層は厚さが何ら制限されず、薄膜化
することができ、従つて、軽量で且つ柔軟な風合の合成
皮革を製造することができる。また、基布と表皮層との
間の接着力も十分に高い。Therefore, according to the method of the present invention, first, the texture of the base fabric in the epidermis layer is sterically and clearly expressed. Moreover, according to the method of the present invention, since the adhesive is applied on the skin layer, the resin layer is not limited in thickness and can be made into a thin film. Of synthetic leather can be manufactured. Also, the adhesive force between the base cloth and the skin layer is sufficiently high.
（実施例） 以下に実施例を挙げて本発明を説明するが、本発明はこ
れら実施例により何ら限定されるものではない。(Examples) Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.
実施例１ 離型紙上にポリウレタン樹脂溶液を130g/m2の割合で塗
布し、80℃で２時間加熱乾燥して、離型紙上に表皮層を
成膜した。この上に直ちに二液型ポリウレタン接着剤を
80g/m2の割合で塗布すると共に、更にその上に綾目をも
つポリエステル綾織布を積層し、120℃で１分間乾燥し
た。Example 1 A polyurethane resin solution was applied on a release paper at a rate of 130 g / m 2 and dried by heating at 80 ° C. for 2 hours to form a skin layer on the release paper. Immediately apply two-component polyurethane adhesive on top of this
It was applied at a rate of 80 g / m 2 , and a polyester twill woven fabric having a twill was further laminated thereon and dried at 120 ° C. for 1 minute.
次いで、上記離型紙を剥がしつつ、得られた原反をゴム
ロール間にて圧着し、織布の綾目を表皮層に強制的に沿
わせた後、120℃で２分間の加熱下に、原反をピンテン
ターにて幅方向に10％延伸して、接着剤を十分に架橋さ
せ、表皮層を生地目に定着させた。Then, while peeling off the release paper, the obtained raw fabric was pressure-bonded between rubber rolls to force the twill of the woven fabric to follow the skin layer, and then heated at 120 ° C. for 2 minutes to obtain the raw fabric. The fabric was stretched by 10% in the width direction with a pin tenter to sufficiently crosslink the adhesive and fix the skin layer to the texture.
このようにして得られた合成皮革は、柔らかい風合を有
すると共に、基布の有する生地目に同調して明瞭で立体
的な綾目を有し、高い織布感を示した。この合成皮革に
おける樹脂層の接着力は4.0kg/cmであつて、例えば、前
記靴用アツパー材として十分な強度を有している。The synthetic leather thus obtained had a soft texture and a clear and three-dimensional twill line in tune with the texture of the base fabric, showing a high woven fabric feel. The adhesive force of the resin layer in this synthetic leather is 4.0 kg / cm, and for example, it has sufficient strength as the shoe upper material.
尚、表皮層の形成のために用いたポリウレタン溶液は、
レザミン3412LP（大日精化（株）製一液型）100部、メ
チルエチルケトン30部及びポリウレタン用インキである
ハイコープK914（特殊塗料工業（株）製）15部からな
る。The polyurethane solution used for forming the skin layer is
Consists of 100 parts of Resamine 3412LP (one-component type manufactured by Dainichiseika Co., Ltd.), 30 parts of methyl ethyl ketone, and 15 parts of HiCorp K914 (manufactured by Special Paint Industry Co., Ltd.) which is an ink for polyurethane.
また、ポリウレタン接着剤は、レザミンUD−640（大日
精化（株）製）100部、ジメチルホルムアミド30部、架
橋剤３部及び架橋促進剤２部からなる。The polyurethane adhesive was composed of 100 parts of Resamine UD-640 (manufactured by Dainichiseika Co., Ltd.), 30 parts of dimethylformamide, 3 parts of a crosslinking agent and 2 parts of a crosslinking accelerator.
実施例２ 実施例１において、ポリエステル綾織布に代えて、ポリ
エステル平織布を用いて、同様にして合成皮革を製造し
た。この合成皮革も、柔らかい風合を有すると共に、基
布の有する生地目に同調して、表皮層は格子状に突出す
る生地目をもち、高い織布感を示した。また、接着力も
3.5kg/cmであつて、例えば、靴用アツパー材として好適
に用いることができる。Example 2 A synthetic leather was produced in the same manner as in Example 1 except that a polyester plain woven fabric was used instead of the polyester twill woven fabric. This synthetic leather also had a soft texture and, in synchronism with the texture of the base fabric, the epidermal layer had a texture of protrusions in a lattice pattern, and exhibited a high woven feeling. Also, the adhesive strength
It is 3.5 kg / cm, and can be suitably used as an upper material for shoes, for example.
比較例 ポリエステル綾織布にポリウレタン系接着剤をグラビア
コーターにて40g/m2の割合で塗布した後、ポリ塩化ビニ
ルコンパウンドを逆Ｌ型カレンダーにて0.10mm厚に成形
し、これを上記織布の接着剤塗布面にトツピングした。Comparative Example Polyester twill woven fabric was coated with a polyurethane adhesive at a rate of 40 g / m 2 with a gravure coater, and then polyvinyl chloride compound was molded with an inverted L-shaped calender to a thickness of 0.10 mm. Topped to the adhesive coated surface.
得られた原反のポリ塩化ビニル面をエンボス機にて150
℃で30秒間加熱した後、ゴムロール間で圧着した。The polyvinyl chloride surface of the obtained original fabric is 150 with an embossing machine.
After heating for 30 seconds at ℃, it was pressed between the rubber rolls.
このようにして得られた合成皮革は、風合が非常に硬い
うえに、生地目の発現は極めて乏しいものであつた。The synthetic leather thus obtained had a very hard texture and had very poor expression of the texture.
尚、用いたポリ塩化ビニルコンパウンドはポリ塩化ビニ
ル（重合度1300）、ジオクチルフタレート80部、Ba−Zn
系安定剤３部及び顔料15からなる。The polyvinyl chloride compound used was polyvinyl chloride (polymerization degree 1300), dioctyl phthalate 80 parts, Ba-Zn
Consists of 3 parts of system stabilizer and 15 pigments.
第１図は、本発明の方法を実施するための工程図、第２
図は、本発明の方法において、ゴムロールで圧着する積
層体を示す。 ２……離型紙、５……基布、７……ゴムロール、８……
表皮層、９……接着剤層、10……原反。FIG. 1 is a process diagram for carrying out the method of the present invention, FIG.
The figure shows a laminate that is pressed by a rubber roll in the method of the present invention. 2 ... Release paper, 5 ... Base cloth, 7 ... Rubber roll, 8 ...
Skin layer, 9 ... Adhesive layer, 10 ... Fabric.
Claims (1)
し、乾燥して、離型紙上に表皮層を形成する第１工程、
この表皮層上にポリウレタン接着剤を重ねて塗布し、こ
の上に織布からなる基布を積層した後、上記接着剤を半
乾燥半硬化させる第２工程、上記離型紙を剥離した後、
上記接着剤を介して表皮層と基布とをゴムロール間で圧
着して、原反とする第３工程、及びこの原反を加熱下に
幅方向に延伸しつつ、乾燥させた後、冷却する第４工程
とからなることを特徴とする生地目感を有する合成皮革
の製造方法。1. A first step of applying a polyurethane resin solution onto release paper and drying the solution to form a skin layer on the release paper.
A second step of semi-drying and semi-curing the adhesive after the polyurethane adhesive is overlaid and applied on the skin layer, a base cloth made of a woven fabric is laminated thereon, and the release paper is peeled off,
The surface layer and the base cloth are pressure-bonded between the rubber rolls via the above-mentioned adhesive to form a raw fabric in the third step, and the raw fabric is stretched in the width direction under heating and dried, and then cooled. A method for producing a synthetic leather having a textured texture, comprising: a fourth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071622A JPH0686710B2 (en) | 1986-03-28 | 1986-03-28 | Method for producing synthetic leather with texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071622A JPH0686710B2 (en) | 1986-03-28 | 1986-03-28 | Method for producing synthetic leather with texture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62231088A JPS62231088A (en) | 1987-10-09 |
| JPH0686710B2 true JPH0686710B2 (en) | 1994-11-02 |
Family
ID=13465933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61071622A Expired - Lifetime JPH0686710B2 (en) | 1986-03-28 | 1986-03-28 | Method for producing synthetic leather with texture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0686710B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383325B1 (en) * | 2000-05-10 | 2002-05-07 | Chai-Bang Tsai | Method for manufacturing a polyurethane product with high wetting ability, gas permeability and high water repellent ability by a dry transfer coating process |
| KR100408744B1 (en) * | 2001-05-31 | 2003-12-11 | 전기평 | Manufacturing method of dry type film to having wet type film property |
| CN106012564A (en) * | 2016-07-12 | 2016-10-12 | 合肥科天水性科技有限责任公司 | Water-based dry method foaming raincoat leather and preparation method thereof |
| CN105951466A (en) * | 2016-07-12 | 2016-09-21 | 合肥科天水性科技有限责任公司 | Water-based screen-touch glove leather and preparation method thereof |
| US12005688B2 (en) * | 2017-11-10 | 2024-06-11 | Chen-Cheng Huang | Composite cloth |
| CN111041842A (en) * | 2019-11-27 | 2020-04-21 | 徐州顺天工业用布有限公司 | Processing technology of polyester cloth liner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55914B2 (en) * | 1971-08-26 | 1980-01-10 | ||
| JPS5331184B2 (en) * | 1972-05-17 | 1978-08-31 | ||
| JPS5611790B2 (en) * | 1973-07-18 | 1981-03-17 |
-
1986
- 1986-03-28 JP JP61071622A patent/JPH0686710B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62231088A (en) | 1987-10-09 |
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