JPH072637Y2 - Synthetic leather manufacturing process release paper - Google Patents
Synthetic leather manufacturing process release paperInfo
- Publication number
- JPH072637Y2 JPH072637Y2 JP14310889U JP14310889U JPH072637Y2 JP H072637 Y2 JPH072637 Y2 JP H072637Y2 JP 14310889 U JP14310889 U JP 14310889U JP 14310889 U JP14310889 U JP 14310889U JP H072637 Y2 JPH072637 Y2 JP H072637Y2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- release paper
- paper
- synthetic leather
- biaxially stretched
- 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)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は合成皮革製造用工程剥離紙（以下単に工程剥離
紙という）に関し、更に詳しくは、均一な表面外観を有
する合成皮革の製造に使用され、安定した作業適性と繰
り返し使用性に優れた工程剥離紙に関する。[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a process release paper for producing synthetic leather (hereinafter referred to simply as process release paper), and more specifically, it is used for producing synthetic leather having a uniform surface appearance. And a process release paper excellent in stable workability and repeatability.
（従来の技術） 従来、合成皮革は一般的には工程剥離紙上に合成皮革表
皮層樹脂、例えば、ポリウレタン系樹脂、ポリアミド系
樹脂、ポリアミノ酸系樹脂、ポリ塩化ビニル系樹脂等の
溶液を、塗布、乾燥及びゲル化させて被膜を形成し、更
にその表面に一液型又は二液型のポリウレタン等の接着
剤を塗布し、次いで該接着剤面上に基布等を圧着貼合
し、乾燥及び熟成硬化させ、その後に工程剥離紙を引き
剥すことによって行われている。(Prior Art) Conventionally, synthetic leather is generally coated with a solution of synthetic leather surface layer resin such as polyurethane resin, polyamide resin, polyamino acid resin, or polyvinyl chloride resin on process release paper. , To form a film by drying and gelling, further apply an adhesive such as one-component or two-component polyurethane on the surface, and then press-bond a base cloth or the like on the adhesive surface and dry. And aging and curing, and then the process release paper is peeled off.
これらの合成皮革のうち、エナメル（光沢）調、セミマ
ット（半艶消し）調、マット（艶消し）調の有するもの
が知られている。これらの合成皮革は、天然絞、幾何学
絞、梨地絞等の柄が表面にないタイプであるので、フラ
ット調合成皮革とも称されている。Among these synthetic leathers, those having an enamel (gloss) tone, a semi-matt (semi matte) tone, and a matte (matte) tone are known. Since these synthetic leathers are of a type that does not have a pattern such as a natural diaphragm, a geometric diaphragm, a satin diaphragm, etc. on the surface, they are also called flat-tone synthetic leathers.
これらのフラット調合成皮革の製造には、天然絞、幾何
学絞、梨地絞等の柄がエンボスや印刷等により付与され
ていない工程剥離紙、即ちフラットタイプ工程剥離紙が
使用されている。In the production of these flat-tone synthetic leathers, a process release paper to which a pattern such as a natural diaphragm, a geometric diaphragm or a satin diaphragm is not applied by embossing or printing, that is, a flat type process release paper is used.
これらの従来技術のフラットタイプ工程剥離紙として
は、シリコーン系樹脂、メラミン系樹脂、アルキッド系
樹脂、アクリル系樹脂、フェノール系樹脂等の剥離剤を
溶剤に溶解し、ロールコート等の方法で基材シートに塗
布して製造されたもの、ポリエチレン、ポリプロピレン
等の剥離性を有する熱可塑性樹脂を加熱溶融し、基材シ
ート上に押出ラミネーションして製造されるもの、更に
剥離性を有するフイルム（延伸タイプや未延伸タイプ）
と基材シートとをポリウレタン系樹脂、エポキシ樹脂、
アクリル系樹脂等の接着剤によりドライラミネートやウ
エットラミネート法で積層して製造されるものが知られ
ている。These conventional flat type process release papers include release agents such as silicone-based resins, melamine-based resins, alkyd-based resins, acrylic-based resins, and phenol-based resins that are dissolved in a solvent and roll-coated. A film produced by applying it to a sheet, a thermoplastic resin having peelability such as polyethylene or polypropylene that is melted by heating, and extrusion-laminated on a base sheet, and a film having peelability (stretched type). Or unstretched type)
And the base material sheet with polyurethane resin, epoxy resin,
There is known a product manufactured by laminating a dry laminate or a wet laminate method with an adhesive such as an acrylic resin.
これらのフラットタイプ工程剥離紙に一般的に要求され
る性能は、均一な表面外観を有すること、作業に適した
剥離性を有すること及び強度を有し繰り返し使用性を有
することである。Performances generally required for these flat type process release papers are that they have a uniform surface appearance, that they have peelability suitable for work, and that they have strength and have repeatability.
（考案が解決しようとしている問題点） 上記従来技術において、基材シート上に剥離剤溶液をロ
ールコート法等で塗布して剥離層を形成する方法では、
剥離剤の均一な塗布が非常に困難であり、塗布むら、乾
燥硬化後の亀裂、割れ目等が発生し易いという製造上の
問題があり、又、該方法で得られる剥離紙は、その強度
が基材シートのみに依存する為、合成皮革の製造時に、
紙の熱劣化や耳折れ、傷等の発生により、剥離紙が切れ
易いという問題がある。(Problems to be Solved by the Invention) In the above-mentioned conventional technique, in the method of forming a release layer by applying a release agent solution on a base sheet by a roll coating method or the like,
Uniform application of a release agent is very difficult, and there is a manufacturing problem that uneven coating, cracks after drying and curing, cracks and the like are likely to occur, and the release paper obtained by this method has strength Since it depends only on the base sheet, when manufacturing synthetic leather,
There is a problem that the release paper is easily cut due to heat deterioration of the paper, tearing of the ears, scratches, and the like.
又、剥離性熱可塑性樹脂を押出ラミネーションする方法
では、押出樹脂の冷却温度を厳密にコントロールするこ
とが困難であり、その為、均一な表面外観を有する工程
剥離紙を製造することが極めて困難であるという問題が
ある。Further, in the method of extrusion lamination of a peelable thermoplastic resin, it is difficult to strictly control the cooling temperature of the extruded resin, and therefore it is extremely difficult to produce a step release paper having a uniform surface appearance. There is a problem.
更に、接着剤を用いるドライラミネート法やウェットラ
ミネート法の場合には、接着剤塗布時の所謂糊目が発生
し、又、塗布した接着剤が紙等の基材シートにしみ込
み、ラミネート面が荒れたり、基材シートと剥離性を有
するフイルムとの接着性が十分に得られないという製造
上の問題がある。Furthermore, in the case of a dry laminating method or a wet laminating method using an adhesive, a so-called glue is generated at the time of applying the adhesive, and the applied adhesive permeates into a base material sheet such as paper and the laminating surface is There is a manufacturing problem that the film is rough and the adhesiveness between the base sheet and the film having peelability cannot be sufficiently obtained.
又、この方法で得られた工程剥離紙は剥離性を有するフ
イルム、接着剤及び紙という熱収縮率、熱膨張率の異な
る３種の材質から構成された積層体である為、合成皮革
製造時の加熱により、各材質間の接着強度が低下した
り、工程剥離紙の捩れやカールが発生し易い問題点があ
る。In addition, the step release paper obtained by this method is a laminated body composed of three kinds of materials having different heat shrinkage and thermal expansion coefficients, that is, a peelable film, an adhesive and a paper, so that it can be manufactured at the time of manufacturing synthetic leather. There is a problem in that the adhesive strength between the respective materials is lowered and the process release paper is apt to be twisted or curled due to the heating.
従って本考案の目的は、上記従来技術の問題点を解決
し、均一な表面外観を有する合成皮革の製造に使用さ
れ、安定した作業適性と繰り返し使用性に優れた工程剥
離紙を提供することである。Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art and to provide a process release paper which is used for producing synthetic leather having a uniform surface appearance and is excellent in stable workability and repeatability. is there.
（問題点を解決する為の手段） 上記目的は以下の本考案によって達成される。(Means for Solving Problems) The above object is achieved by the present invention described below.
即ち、本考案は、基材シートに接着層を介して剥離層を
形成してなり、上記剥離層が合成皮革表皮層樹脂に対し
て剥離性を有する二軸延伸樹脂フイルムであり、上記接
着層が上記二軸延伸樹脂フイルムと同質の樹脂からなる
ことを特徴とする工程剥離紙である。That is, the present invention is a biaxially stretched resin film having a release layer formed on a base material sheet via an adhesive layer, the release layer being a biaxially stretched resin film having releasability with respect to synthetic leather skin layer resin. Is a resin having the same quality as that of the biaxially stretched resin film described above.
（作用） 剥離層を合成皮革表皮層樹脂に対して剥離性を有する二
軸延伸樹脂フイルムとし、接着層を上記二軸延伸樹脂フ
イルムと同質の樹脂とすることによって、均一な表面外
観を有し、安定した作業適性と繰り返し使用性に優れた
工程剥離紙を提供することが出来る。(Function) A uniform surface appearance can be obtained by using a biaxially stretched resin film having a releasability for the synthetic leather skin layer resin as the release layer and a resin of the same quality as the above-mentioned biaxially stretched resin film as the adhesive layer. In addition, it is possible to provide a process release paper that has stable workability and excellent repeatability.
（好ましい実施態様） 次に好ましい実施態様を挙げて本考案を更に具体的に説
明する。(Preferred Embodiment) Next, the present invention will be described more specifically with reference to preferred embodiments.
本考案の工程剥離紙の好適な１例は、第１図示の如く、
基材シート１に接着層２を介して剥離層３を形成してな
り、上記剥離層３が合成皮革表皮層樹脂に対して剥離性
を有する二軸延伸樹脂フイルムであり、上記接着層２が
上記二軸延伸樹脂フイルムと同質の樹脂からなることを
特徴としている。A preferred example of the process release paper of the present invention is as shown in the first drawing.
The release layer 3 is formed on the base material sheet 1 via the adhesive layer 2, and the release layer 3 is a biaxially stretched resin film having releasability with respect to the synthetic leather skin layer resin. It is characterized in that it is made of the same resin as that of the biaxially stretched resin film.
上記の工程剥離紙に使用する基材シート１としては、通
常坪量30乃至350g/m2の紙、布等の様に繊維を絡み合わ
せて膠着させたシートが好適である。As the base sheet 1 used for the above-mentioned release paper, a sheet in which fibers are intertwined and glued, such as paper or cloth having a basis weight of 30 to 350 g / m 2 , is suitable.
又、剥離層として使用する二軸延伸フイルムとしては、
厚み３乃至250μｍのポリエチレン系樹脂、ポリプロピ
レン系樹脂、ポリメチルペンテン系樹脂、ポリエステル
系樹脂、アクリロニトリル系樹脂、弗素系樹脂等、従来
公知の剥離性を有する樹脂フイルムを二軸延伸させたも
のであれば特に限定されない。Further, as the biaxially stretched film used as the release layer,
A biaxially stretched resin film having a known peelability, such as a polyethylene resin, a polypropylene resin, a polymethylpentene resin, a polyester resin, an acrylonitrile resin, or a fluorine resin, having a thickness of 3 to 250 μm. There is no particular limitation.
又、接着層として使用される樹脂は、上記の二軸延伸フ
イルムと同質の樹脂であり、好ましくは５乃至150μｍ
の厚みに基材シート上に押出コーティングで塗布形成さ
れる。The resin used as the adhesive layer is of the same quality as the above-mentioned biaxially stretched film, preferably 5 to 150 μm.
Is formed by extrusion coating on a substrate sheet to a thickness of.
上記材料からなる本考案の工程剥離紙は、常法に従っ
て、基材シートである紙の表面に上記樹脂を押出コーテ
ィングしながら、前記二軸延伸フイルムを積層すること
によって得られる。The process release paper of the present invention made of the above materials can be obtained by laminating the biaxially stretched film while extrusion coating the above resin on the surface of the paper which is the base sheet according to a conventional method.
（実施例） 次に実施例及び比較例を挙げて本考案を更に具体的に説
明する。(Example) Next, the present invention will be described more specifically with reference to Examples and Comparative Examples.
実施例１ 基材シートとして紙（晒竜王、80g/m2、大王製紙製）、
剥離性を有する二軸延伸フイルムとして光沢調OPPフイ
ルム（パレインP2108、30μｍ、東洋紡製）を用い、こ
の二軸延伸フイルムと同質の樹脂としてPP樹脂（ショウ
アロマーLR510、昭和電工製）を用い、紙とOPPフイルム
との間にPP樹脂層30μｍを押出しコーティング及びラミ
ネートして、紙/PP樹脂/OPPフイルム構成の積層体であ
る本考案のエナメル（光沢）調フラットタイプ工程離型
紙を得た。Example 1 As a base sheet, paper (bleached dragon king, 80 g / m 2 , manufactured by Daio Paper Co., Ltd.),
Gloss-like OPP film (Parain P2108, 30 μm, manufactured by Toyobo) is used as a biaxially stretched film having peelability, and PP resin (SHOAROMER LR510, manufactured by Showa Denko) is used as the same resin as this biaxially stretched film. A PP resin layer of 30 μm was extrusion-coated and laminated between the PDP and the OPP film to obtain an enamel (gloss) flat type process release paper of the present invention, which is a laminate of a paper / PP resin / OPP film structure.
実施例２ 剥離性を有する二軸延伸フイルムとしてマット（艶消
し）調OPPフイルム（パレインP4162、25μｍ、東洋紡
製）を用い、上記実施例１と同様の紙とPP樹脂を用い、
同様に押出しコーティング及びラミネートして、本考案
のマット（艶消し）調フラットタイプ工程離型紙を得
た。Example 2 A matte (matte) OPP film (Plain P4162, 25 μm, manufactured by Toyobo) was used as the biaxially stretched film having peelability, and the same paper and PP resin as in Example 1 were used.
Similarly, extrusion coating and lamination were carried out to obtain a matte (matte) tone flat type process release paper of the present invention.
比較例１ 基材シートとして紙（パールコート、127.9g/m2、三菱
製紙製）、剥離層としてアルキッド系樹脂（CRY503Cワ
ニス/CRY添加剤コンクＢ＝100/7重量比、東洋インキ
製）を用い、紙のコート面にアミノアルキッド系樹脂を
コート量10g/m2（dry）になる様にロールコートで塗
布、乾燥及び熱硬化させて、比較例のエナメル（光沢）
調フラットタイプ工程離型紙を得た。Comparative Example 1 Paper (pearl coat, 127.9 g / m 2 , manufactured by Mitsubishi Paper Mills) was used as the base sheet, and alkyd resin (CRY503C varnish / CRY additive Conc B = 100/7 weight ratio, manufactured by Toyo Ink) was used as the release layer. Amino alkyd resin was applied to the coated surface of the paper by roll coating so that the coating amount was 10 g / m 2 (dry), dried and heat cured, and the enamel of Comparative Example (gloss)
A flat-type process release paper was obtained.
比較例２ 基材シートとして紙（晒竜王、80g/m2、大王製紙製）、
剥離層としてPP樹脂（ショウアロマーLR510、昭和電工
製）を用い、紙の上にPP樹脂を厚み30μｍで押出しコー
ティングし、ミラーチルロールで冷却して、比較例のエ
ナメル（光沢）調フラットタイプ工程離型紙を得た。Comparative Example 2 As a base sheet, paper (bleached dragon king, 80 g / m 2 , made by Daio Paper Co., Ltd.),
Using PP resin (Show Allomer LR510, Showa Denko) as a release layer, PP resin is extruded and coated on paper to a thickness of 30 μm, cooled with a mirror chill roll, and enamel (glossy) flat type process of comparative example. A release paper was obtained.
比較例３ 上記比較例２と同様の紙とPP樹脂を用い、押出しコーテ
ィングし、マットチルロールで冷却して、比較例のマッ
ト（艶消し）調フラットタイプ工程離型紙を得た。Comparative Example 3 The same paper and PP resin as in Comparative Example 2 above were extrusion coated and cooled with a matte chill roll to obtain a matte (matte) tone flat type process release paper of Comparative Example.
比較例４ 基材シートとして上記比較例１と同様の紙、剥離性を有
するフイルムとして上記実施例１と同様のOPPフイルム
を用い、ロールコートでポリウレタン系接着剤（AD−50
2/CA1−10＝100/7重量比、東洋モートン製）を10g/m
2（dry）の量で塗布し、トライラミネート法により、比
較例のエナメル（光沢）調フラットタイプ工程離型紙を
得た。Comparative Example 4 The same paper as in Comparative Example 1 was used as the base sheet, and the OPP film as in Example 1 was used as the peelable film, and the polyurethane adhesive (AD-50 was used by roll coating.
2 / CA1-10 = 100/7 weight ratio, made by Toyo Morton) 10g / m
The amount of 2 (dry) was applied, and the enamel (gloss) tone flat type process release paper of the comparative example was obtained by the trilamination method.
比較例５ 基材シートとして上記比較例１と同様の紙、剥離性を有
するフイルムとして上記実施例２と同様のOPPフイルム
を用い、上記比較例４と同様にドライラミネート法によ
り、比較例のマット（艶消し）調フラットタイプ工程離
型紙を得た。Comparative Example 5 The mat of Comparative Example was prepared by using the same paper as Comparative Example 1 as the base sheet, the OPP film similar to Example 2 as the peelable film, and the dry laminating method as in Comparative Example 4. A (matte) tone flat type process release paper was obtained.
上記実施例１、２及び比較例１乃至５によって得られた
フラットタイプ工程離型紙について、各々以下の如き14
0℃×３分加熱によるリピート（３回）過酷試験を行
い、その評価結果を下記第１表に示した。The flat type process release papers obtained in Examples 1 and 2 and Comparative Examples 1 to 5 are as follows.
A repeat (3 times) severe test by heating at 0 ° C for 3 minutes was performed, and the evaluation results are shown in Table 1 below.
（１）グロス（％） 日本電色製75°−75°反射光沢計により離型面のグロス
を測定した。(1) Gloss (%) The gloss of the release surface was measured with a Nippon Denshoku 75 ° -75 ° reflective gloss meter.
（２）剥離強度（g/15mm幅） 工程離型紙上に一液ポリウレタン溶液（大日本インキ化
学製、クリスボン5516S）を乾燥塗布膜厚が30μｍにな
る様に塗布し、熱風乾燥後剥離強度試験に供した。(2) Peel strength (g / 15mm width) Process One-part polyurethane solution (Krisbon 5516S, manufactured by Dainippon Ink and Chemicals) was coated on release paper to a dry coating thickness of 30μm, and peel strength test was performed after hot air drying. I went to
剥離強度試験法 定速引張試験機（テンシロン）を用い、試料（15mm幅）
の離型紙からポリウレタン樹脂を剥す際に要する抵抗力
を測定し、剥離強度とした。Peel strength test method Sample (15mm width) using constant speed tensile tester (Tensilon)
The peeling strength was measured by measuring the resistance force required for peeling the polyurethane resin from the release paper.
（３）抗張力（Kg/15mm幅） 工程離型紙の流れ方向（Ｍ、Ｄ）についてテンシロンを
用い、JIS−Ｐ−8113に基づき試料の破断強度を測定
し、抗張力とした。(3) Tensile strength (Kg / 15 mm width) Tensileon was used in the flow direction (M, D) of the release paper in the process, and the breaking strength of the sample was measured according to JIS-P-8113 to obtain the tensile strength.
（４）引裂性 工程離型紙の幅方向（Ｔ、Ｄ）について手で引き裂き、
裂け目の入り具合及び裂け具合を評価した。(4) Tearability Tear by hand in the width direction (T, D) of the release paper,
The degree of tearing and the degree of tearing were evaluated.
（５）接着性 離型面にニチバンセロテープを貼り、そのセロテープを
勢いよく引き剥した時の離型層と紙の間のデラミネーシ
ョン（浮きや剥れ）状態を評価した。(5) Adhesiveness Nichiban cellophane tape was applied to the release surface, and the delamination (floating or peeling) between the release layer and the paper when the cellophane tape was peeled off vigorously was evaluated.
（６）カール 工程離型紙をＡ−４サイズ（長辺：流れ方向、短辺：幅
方向）にカットし、140℃×３分加熱直後及び20℃、60
％RHの条件下に放置３分後のカール（そり）の度合を評
価した。(6) Curl Cutting process release paper is cut into A-4 size (long side: flow direction, short side: width direction), immediately after heating at 140 ° C x 3 minutes and at 20 ° C, 60
The degree of curling (warping) after standing for 3 minutes under the condition of% RH was evaluated.
（考案の効果） 以上の通り、本考案によって提供された工程離型紙は、
第１表に示す様に、工程離型紙として要求される性能
（均一な表面外観を持ち、作業に適した剥離性と強度を
持ち、繰り返し使用性を有すること）に対し、全項目で
優れていると言う利点を有するものである。 (Effect of the Invention) As described above, the process release paper provided by the present invention is
As shown in Table 1, it is superior in all items to the performance required as a process release paper (having a uniform surface appearance, having peelability and strength suitable for work, and having repeatability). It has the advantage of being present.
本考案において上記の様な効果を有する理由は定かでは
ないが、離型層に二軸延伸フイルムという物理的及び機
械的強度に優れた素材を用いることにより、作業に適し
た強度が付与されること、及び押出しコーティング法で
形成される接着層が、これをサンドイッチする二軸延伸
フイルムと同質の樹脂である為、両者の化学的接着力が
大であり、一方、基材に対しては接着層の樹脂が基材で
ある紙、布等の繊維間に入り込むことで高い物理的接着
力を発揮し、充分な接着性が得られ、且つ接着層が離型
層と同じ或いは非常に近似した熱膨張率、熱収縮率を持
つ樹脂である為、離型紙の捩れ、カール、歪等の不都合
が発生しにくいものと推定される。Although the reason why the present invention has the above effects is not clear, the strength suitable for work is imparted by using a material having excellent physical and mechanical strength such as a biaxially stretched film for the release layer. In addition, since the adhesive layer formed by the extrusion coating method is a resin of the same quality as the biaxially stretched film that sandwiches it, the chemical adhesive force between the two is large, while the adhesive layer adheres to the substrate. The resin of the layer shows high physical adhesiveness by interposing between the fibers of the base material such as paper and cloth, and sufficient adhesiveness is obtained, and the adhesive layer is the same as or very close to the release layer. Since it is a resin having a coefficient of thermal expansion and a coefficient of thermal contraction, it is presumed that the release paper is less likely to suffer inconveniences such as twisting, curling, and distortion.
第１図は本考案の合成皮革製造用工程離型紙を示す断面
図である。 １…基材シート ２…接着層（二軸延伸フイルムと同質の樹脂） ３…剥離層（二軸延伸フイルム）FIG. 1 is a sectional view showing a release paper for manufacturing synthetic leather according to the present invention. 1 ... Substrate sheet 2 ... Adhesive layer (resin of the same quality as the biaxially stretched film) 3 ... Release layer (biaxially stretched film)
Claims (2)
してなり、上記剥離層が合成皮革表皮層樹脂に対して剥
離性を有する二軸延伸樹脂フイルムであり、上記接着層
が上記二軸延伸樹脂フイルムと同質の樹脂からなること
を特徴とする合成皮革製造用工程剥離紙。1. A biaxially stretched resin film having a release layer formed on a base sheet via an adhesive layer, the release layer being a biaxially stretched resin film having releasability with respect to a synthetic leather skin layer resin, wherein the adhesive layer is A process release paper for producing synthetic leather, which is made of the same resin as the above biaxially stretched resin film.
ものである請求項１に記載の合成皮革製造用工程剥離
紙。2. The process release paper for producing synthetic leather according to claim 1, wherein the adhesive layer is formed by extrusion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14310889U JPH072637Y2 (en) | 1989-12-13 | 1989-12-13 | Synthetic leather manufacturing process release paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14310889U JPH072637Y2 (en) | 1989-12-13 | 1989-12-13 | Synthetic leather manufacturing process release paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0381398U JPH0381398U (en) | 1991-08-20 |
| JPH072637Y2 true JPH072637Y2 (en) | 1995-01-25 |
Family
ID=31689908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14310889U Expired - Lifetime JPH072637Y2 (en) | 1989-12-13 | 1989-12-13 | Synthetic leather manufacturing process release paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072637Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989012581A1 (en) * | 1988-06-23 | 1989-12-28 | Asahi Kasei Kogyo Kabushiki Kaisha | Cutter-carrying storage case for flexible plastic elongated materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7374194B2 (en) | 2001-06-14 | 2008-05-20 | Carmate Mfg. Co., Ltd. | Apparatus for binding boot to base plate for snowboard |
-
1989
- 1989-12-13 JP JP14310889U patent/JPH072637Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989012581A1 (en) * | 1988-06-23 | 1989-12-28 | Asahi Kasei Kogyo Kabushiki Kaisha | Cutter-carrying storage case for flexible plastic elongated materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0381398U (en) | 1991-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |