JP2002248632A - Method for manufacturing pattern-containing rubber sheet - Google Patents
Method for manufacturing pattern-containing rubber sheetInfo
- Publication number
- JP2002248632A JP2002248632A JP2001048683A JP2001048683A JP2002248632A JP 2002248632 A JP2002248632 A JP 2002248632A JP 2001048683 A JP2001048683 A JP 2001048683A JP 2001048683 A JP2001048683 A JP 2001048683A JP 2002248632 A JP2002248632 A JP 2002248632A
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- Japan
- Prior art keywords
- sheet
- rubber sheet
- rubber
- rubber particles
- particles
- 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.)
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Links
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、模様入りゴムシー
トの製造方法に関し、詳しくは、例えば、スケート場の
リンク周辺、スパイク付シューズを使用する競技場の控
え部分などに床敷物として使用される模様入りゴムシー
トの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a patterned rubber sheet, and more particularly to a method for producing a floor covering around a rink of a skating rink, a stadium in a stadium using spiked shoes, and the like. The present invention relates to a method for producing a patterned rubber sheet.
【０００２】[0002]
【従来の技術】従来より、模様入りゴムシートとして、
タイル状のもの（大きさは通常１０００ｍｍ角以下）が
知られている。斯かるタイル状の模様入りゴムシート
は、加硫剤が配合され且つ所定長さに切断された生ゴム
シートの表面に着色加硫ゴム粒子を散布し、次いで、プ
レス等の型内で加熱加圧処理し、生ゴムシートの加硫と
共に着色加硫ゴム粒子の埋め込みを行う方法によって製
造される。2. Description of the Related Art Conventionally, as a patterned rubber sheet,
A tile-shaped thing (the size is usually 1000 mm square or less) is known. Such a tile-shaped patterned rubber sheet is obtained by dispersing colored vulcanized rubber particles on the surface of a raw rubber sheet cut into a predetermined length and mixed with a vulcanizing agent, and then heated and pressed in a mold such as a press. It is manufactured by a method of treating and vulcanizing a raw rubber sheet and embedding colored vulcanized rubber particles.
【０００３】ところで、従来の模様入りゴムシートにお
いては、生ゴムシートの中に着色加硫ゴム粒子が埋め込
まれる際に着色加硫ゴム粒子に同伴された空気が一緒に
埋没される。その結果、ゴムシートに埋設された着色加
硫ゴム粒子の周辺に部分的にボイドが形成され、しか
も、空気の巻き込みによるクレータ（巻き込まれた空気
によって凸状になったゴム粒子）が形成される。そし
て、これにより、商品価値が損なわれ且つ色加硫ゴム粒
子が脱落し易いという問題がある。[0003] In the conventional patterned rubber sheet, when the colored vulcanized rubber particles are embedded in the raw rubber sheet, the air accompanying the colored vulcanized rubber particles is buried together. As a result, voids are partially formed around the colored vulcanized rubber particles buried in the rubber sheet, and craters (rubber particles convex by the entrapped air) are formed due to the entrainment of air. . Thus, there is a problem that the commercial value is impaired and the color vulcanized rubber particles are easily dropped.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記実情に
鑑みなされたものであり、その目的は、ゴムシートに着
色加硫ゴム粒子が埋め込まれた模様入りゴムシートの製
造方法であって、生ゴムシートの中に着色加硫ゴム粒子
が埋め込まれる際に着色加硫ゴム粒子に同伴されて一緒
に埋没されんとする空気を除去することが出来る様に改
良された模様入りゴムシートの製造方法を提供すること
にある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for manufacturing a patterned rubber sheet in which colored vulcanized rubber particles are embedded in a rubber sheet. A method for producing a patterned rubber sheet improved so that air which is entrained together with the colored vulcanized rubber particles when the colored vulcanized rubber particles are embedded in the raw rubber sheet can be removed. Is to provide.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記実情に鑑
み鋭意検討を重ねた結果、加熱加圧処理の際に比較的簡
単な手段を採用することにより、上記の目的を容易に達
成し得るとの知見を得、本発明の完成に至った。According to the present invention, as a result of intensive studies in view of the above-mentioned circumstances, the above objects can be easily achieved by employing relatively simple means in the heating and pressurizing treatment. The present inventors have found that the present invention can be obtained, and have completed the present invention.
【０００６】すなわち、本発明の要旨は、加硫剤が配合
された生ゴムシートの表面に着色加硫ゴム粒子を散布
し、次いで、加熱加圧処理によって生ゴムシートの加硫
と共に着色加硫ゴム粒子の埋め込みを行う模様入りゴム
シートの製造方法において、生ゴムシートのゴム粒子散
布面側に粗面シートを介在させて加熱加圧処理を行うこ
とを特徴とする模様入りゴムシートの製造方法に存す
る。That is, the gist of the present invention is to disperse colored vulcanized rubber particles on the surface of a raw rubber sheet containing a vulcanizing agent, and then heat and pressurize the raw rubber sheet to cure the vulcanized rubber sheet. In the method for producing a patterned rubber sheet in which a rubber sheet is embedded, a roughened sheet is interposed between the raw rubber sheet and the surface on which the rubber particles are dispersed, and the heating and pressurizing treatment is performed.
【０００７】[0007]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明で使用するゴムは、特に制限されず、例えば、天
然ゴム、ブチルゴム、ハロゲン化ブチルゴム、アクリル
ゴム、イソプレンゴム、ブタジエンゴム、クロロプレン
ゴム、クロロスルフォン化ポリエチレン、ウレタンゴ
ム、多硫化ゴム、フッ素ゴム、シリコーンゴム、エピク
ロルヒドリンゴム、エチレン−プロピレンゴム、エチレ
ン−アクリルゴム、スチレン−ブタジエンゴム、エチレ
ン−プロピレン−ジエンゴム、アクリルニトリル−ブタ
ジエンゴム、ニトリルゴム−塩化ビニル樹脂ブレンド、
ニトリルゴム／ＥＰＤＭブレンド等が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The rubber used in the present invention is not particularly limited, for example, natural rubber, butyl rubber, halogenated butyl rubber, acrylic rubber, isoprene rubber, butadiene rubber, chloroprene rubber, chlorosulfonated polyethylene, urethane rubber, polysulfide rubber, fluoro rubber , Silicone rubber, epichlorohydrin rubber, ethylene-propylene rubber, ethylene-acrylic rubber, styrene-butadiene rubber, ethylene-propylene-diene rubber, acrylonitrile-butadiene rubber, nitrile rubber-vinyl chloride resin blend,
And nitrile rubber / EPDM blends.
【０００８】加硫剤が配合された生ゴムシートは、概略
的に言えば、素練り、混錬、成形などの工程より成る公
知の方法で得られる。加硫剤としては、特に制限されな
いが、コストの点から硫黄が好適に使用される。生ゴム
シートは、二酸化チタン、酸化亜鉛、硫化亜鉛、リトポ
ン等の白色顔料やその他の有色顔料の配合により、グレ
ー、ライトブルー等に着色することも出来る。上記の白
色顔料の中では隠蔽力に優れる二酸化チタンが好適に使
用される。更に、生ゴムシートには、上記の他、加硫促
進剤、加硫促進助剤、補強材、充填剤、難燃剤、老化防
止剤、酸化防止剤、紫外線吸収剤、粘着付与剤、可塑
剤、滑剤、発泡剤、帯電防止剤、カップリング剤、防腐
剤、防カビ剤などが含まれていてもよい。[0008] The raw rubber sheet containing the vulcanizing agent can be roughly obtained by a known method comprising steps such as mastication, kneading and molding. The vulcanizing agent is not particularly limited, but sulfur is preferably used from the viewpoint of cost. The raw rubber sheet can be colored in gray, light blue, or the like by blending a white pigment such as titanium dioxide, zinc oxide, zinc sulfide, and lithopone or other colored pigments. Among the above white pigments, titanium dioxide having excellent hiding power is preferably used. Further, in the raw rubber sheet, in addition to the above, a vulcanization accelerator, a vulcanization accelerator, a reinforcing material, a filler, a flame retardant, an antioxidant, an antioxidant, an ultraviolet absorber, a tackifier, a plasticizer, Lubricants, foaming agents, antistatic agents, coupling agents, preservatives, fungicides, and the like may be included.
【０００９】一方、着色加硫ゴム粒子（以下、単にゴム
粒子という）は、基本的には上記と同様の工程の後に、
加硫、冷却、粉砕、篩分などの工程が付加された公知の
方法で得られる。この際に使用される着色剤としては、
無機顔料、有機顔料などが挙げられるが、通常は無機顔
料が使用される。無機顔料の具体例としては、酸化鉄
（茶・褐色）、クロム酸鉛、紺青、カーボンブラク等が
挙げられる。上記の様な製造工程において、加硫剤の使
用量などにより硬度が異なるゴム粒子が得られ、粉砕お
よび篩分の条件により粒径が異なるゴム粒子が得られ
る。On the other hand, the colored vulcanized rubber particles (hereinafter simply referred to as rubber particles) are basically subjected to the same steps as above,
It can be obtained by a known method to which steps such as vulcanization, cooling, pulverization, and sieving are added. As the coloring agent used at this time,
Inorganic pigments, organic pigments and the like can be mentioned, but usually inorganic pigments are used. Specific examples of the inorganic pigment include iron oxide (brown / brown), lead chromate, navy blue, carbon black and the like. In the production process as described above, rubber particles having different hardnesses are obtained depending on the amount of the vulcanizing agent used, and rubber particles having different particle sizes depending on the conditions of pulverization and sieving.
【００１０】本発明においては、加硫剤が配合された生
ゴムシートの表面にゴム粒子を散布し、次いで、加熱加
圧処理によって生ゴムシートの加硫と共にゴム粒子の埋
め込みを行う。この際、生ゴムシートは、例えば、表面
層と下地層に分けた複層構造としてもよく、層間に布な
どの他の材料のシート（フイルム）を挟み込んでもよ
い。通常、上記の様な複層構造においては、表面層のみ
に白色顔料などが配合されて意匠性が付与される。ま
た、ゴム粒子が埋め込まれて形成される意匠面の反対面
（複層構造の場合は下地層の外表面）は、接着施工の便
宜性を考慮して布目などの凹凸を設けるのが好ましい。In the present invention, rubber particles are sprayed on the surface of a raw rubber sheet containing a vulcanizing agent, and then the rubber particles are embedded together with the vulcanization of the raw rubber sheet by heating and pressing. At this time, the raw rubber sheet may have, for example, a multilayer structure in which the raw rubber sheet is divided into a surface layer and a base layer, and a sheet (film) of another material such as cloth may be interposed between the layers. Usually, in the multilayer structure as described above, a white pigment or the like is blended only in the surface layer to impart design properties. In addition, it is preferable to provide irregularities such as textures on the surface opposite to the design surface formed by embedding the rubber particles (the outer surface of the base layer in the case of a multilayer structure) in consideration of the convenience of bonding work.
【００１１】本発明の最大の特徴は、生ゴムシートのゴ
ム粒子散布面側に粗面シートを介在させて加熱加圧処理
を行う点にある。The greatest feature of the present invention is that the heating and pressurizing treatment is performed by interposing a roughened sheet on the side of the raw rubber sheet on which the rubber particles are dispersed.
【００１２】加熱加圧処理による生ゴムシートの加硫お
よびゴム粒子の埋め込みは次の様に行われると考えられ
る。すなわち、先ず、加圧により生ゴムシートは圧縮さ
れて薄く変形され且つゴム粒子が存在する部分は当該ゴ
ム粒子を通して掛かる圧力により陥没した様に変形す
る。通常、生ゴムシートに掛かる圧力は約５〜１０Ｋｇ
／ｃｍ2であり、加圧状態の生ゴムシートの厚さは元の
厚さの約７０〜９０％となる。次いで、加熱により生ゴ
ムシートが軟化して陥没変形していた生ゴムシートの中
にゴム粒子が埋め込まれる。同時に加硫開始温度に漸次
近づくに従って加硫が行われて生ゴムシートが加硫ゴム
シートに変化する。そして、最終的には加硫ゴムシート
の中にゴム粒子が面一致の深さまで埋め込まれて模様入
りゴムシートとなる。It is considered that the vulcanization of the raw rubber sheet and the embedding of the rubber particles by the heat and pressure treatment are performed as follows. That is, first, the raw rubber sheet is compressed and thinly deformed by pressurization, and the portion where the rubber particles are present is deformed as if depressed by the pressure applied through the rubber particles. Normally, the pressure applied to the raw rubber sheet is about 5-10Kg
/ Cm 2 , and the thickness of the raw rubber sheet in a pressurized state is about 70 to 90% of the original thickness. Next, the rubber particles are embedded in the raw rubber sheet that has been softened and depressed by heating. At the same time, vulcanization is performed as the temperature gradually approaches the vulcanization start temperature, and the raw rubber sheet is changed into a vulcanized rubber sheet. Finally, the rubber particles are buried in the vulcanized rubber sheet to a depth at which the rubber particles coincide with each other to form a patterned rubber sheet.
【００１３】そして、本発明者の知見によれば、上記の
様な加熱加圧処理において、生ゴムシートのゴム粒子散
布面側に粗面シートを介在させて加熱加圧処理するなら
ば、生ゴムシートの中にゴム粒子が埋め込まれる際にゴ
ム粒子に同伴された空気が一粗面シートの隙間から脱気
され、その埋没が防止される。その結果、ゴム粒子の周
辺へのボイド形成が一層防止され、しかも、空気の巻き
込みによるクレータ（巻き込まれた空気によって凸状に
なったゴム粒子）の形成が防止される。According to the knowledge of the present inventor, in the above heating and pressurizing treatment, if the heating and pressurizing treatment is performed with a rough sheet interposed on the side of the rubber particles on which the rubber particles are dispersed, the raw rubber sheet When the rubber particles are embedded in the sheet, the air entrained by the rubber particles is degassed from the gaps of the rough sheet, thereby preventing the air from being buried. As a result, the formation of voids around the rubber particles is further prevented, and the formation of craters (rubber particles that have become convex due to the entrained air) due to entrainment of air is also prevented.
【００１４】粗面シートとしては、表面に凹凸を備え且
つ可撓性と寸法安定性（耐熱性）が良好であれば如何な
る材料のシートであってもよく、具体的には、布、不織
布、凹凸加工された紙または樹脂シート等が挙げられ
る。凹凸の程度は表面粗度Ｒａとして、通常１０〜２０
０μｍ、好ましくは１０〜５０μｍとされる。粗面シー
トの厚さは、通常０．０１〜５ｍｍ、好ましくは０．１
〜１ｍｍである。また、粗面シートは、加熱加圧処理後
において加硫ゴムシートからの剥離を容易にするため、
離型剤処理して使用される。The rough sheet may be any sheet as long as it has irregularities on its surface and has good flexibility and dimensional stability (heat resistance). An uneven paper or resin sheet may be used. The degree of unevenness is usually 10 to 20 as surface roughness Ra.
0 μm, preferably 10 to 50 μm. The thickness of the rough sheet is usually 0.01 to 5 mm, preferably 0.1 to 5 mm.
１1 mm. In addition, the rough sheet, in order to facilitate peeling from the vulcanized rubber sheet after the heat and pressure treatment,
Used after release agent treatment.
【００１５】上記の加熱加圧処理は、従来公知の方法と
同様に所定長さに切断された生ゴムシートを使用する非
連続法で行うことも出来るが、長尺の生ゴムシートをそ
のまま使用する連続法が好ましい。すなわち、非連続法
で得られるタイル状製品は、製造設備のサイズによって
製品サイズが限定されるために施行に手間が掛かり、ま
た、継目の個所が多くなるに意匠性に欠ける。これに対
し、長尺の生ゴムシートをそのまま使用する連続法の場
合は、上記の様な問題が回避される。The above heating and pressurizing treatment can be performed by a discontinuous method using a raw rubber sheet cut to a predetermined length in the same manner as in a conventionally known method. The method is preferred. That is, the tile-like product obtained by the discontinuous method requires a lot of time and effort to implement because the product size is limited by the size of the manufacturing equipment, and lacks the design property as the number of joints increases. On the other hand, in the case of a continuous method in which a long raw rubber sheet is used as it is, the above-described problem is avoided.
【００１６】本発明において、上記の様な連続法として
は、生ゴムシートにプレスで使用される雄型の様な加熱
加圧装置を押し当てる方法、具体的には、生ゴムシート
の走行と停止とを繰り返して停止時に加熱加圧装置を降
下させて生ゴムシートに押し当てる方法、加熱加圧装置
を生ゴムシートの走行速度と同一速度で走行させつつ降
下させて生ゴムシートに押し当てる方法などを採用する
ことも出来るが、加熱加熱ロールと耐熱性エンドレスベ
ルとから成る加圧処理装置を使用する方法、すなわち、
ゴム粒子が散布された生ゴムシートを加熱加圧処理装置
の加熱ロールと耐熱性エンドレスベルとの間に連続的に
供給して加熱加圧処理を行う方法が推奨される。In the present invention, as a continuous method as described above, a method of pressing a heating and pressurizing device such as a male type used in a press against a raw rubber sheet, specifically, running and stopping of the raw rubber sheet When stopping, the heating / pressing device is lowered and pressed against the raw rubber sheet, or the heating / pressing device is moved down at the same speed as the speed of the raw rubber sheet and lowered to press against the raw rubber sheet. Although it is possible to use a pressure treatment device consisting of a heating and heating roll and a heat-resistant endless bell,
It is recommended that the raw rubber sheet on which the rubber particles are scattered be continuously supplied between the heat roll of the heat and pressure treatment device and the heat-resistant endless bell to perform the heat and pressure treatment.
【００１７】図１は本発明の好ましい態様の一例の説明
図であり、上記の加圧処理装置を使用する方法である。
図１に例示した加熱加圧処理装置は、基本的には、上下
に配置されたテンションロール（６１）及び（６２）、
その後方の中間高さに配置された加熱ロール（７）、更
にその後方の同一高さに配置されたテンションロール
（６３）、これらの各ロールに巻回された耐熱性エンド
レスベルト（例えばスチール製エンドレスベルト）
（５）から成る。FIG. 1 is an explanatory view of an example of a preferred embodiment of the present invention, and shows a method using the above-described pressure processing apparatus.
The heating and pressurizing apparatus illustrated in FIG. 1 basically includes tension rolls (61) and (62) arranged vertically.
A heating roll (7) arranged at an intermediate height in the rear, a tension roll (63) arranged at the same height behind the heating roll (7), and a heat-resistant endless belt wound around each of these rolls (for example, made of steel) Endless belt)
(5).
【００１８】そして、図１に例示した加熱加圧処理装置
においては、加熱ロールと耐熱性エンドレスベルの間に
供給される生ゴムシートのゴム粒子散布面側に粗面シー
ト（４）を介在させる手段として、粗面シート供給ロー
ル（４Ａ）及び粗面シート引取ロール（４Ｂ）と耐熱性
エンドレスベルト（５）に接して配置されたタッチロー
ル（８２）を備えている。In the heat and pressure treatment apparatus illustrated in FIG. 1, means for interposing a rough sheet (4) on the side of the rubber particles on the raw rubber sheet supplied between the heating roll and the heat-resistant endless bell is provided. A rough surface sheet supply roll (4A), a rough surface sheet take-up roll (4B), and a touch roll (82) arranged in contact with the heat-resistant endless belt (5).
【００１９】図１に示す方法は次の様に行われる。先
ず、表面層用および下地層用として、各生ゴムシートロ
ール（１Ａ）及び（１Ｂ）から引き出された各生ゴムシ
ート（１ａ）及び（１ｂ）は案内ロール（８１）で一体
化される。そして、上記の一体化された生ゴムシート
（１）の表面にホッパー（８）からゴム粒子（２）を散
布する。この散布は、適宜の手段により、生ゴムシート
（１）幅方向に一定量のゴム粒子（２）が散布される様
に行う。ゴム粒子の粒径は、加熱加圧処理前の生ゴムシ
ートの厚さの通常５〜７０％に相当する大きさとされ
る。The method shown in FIG. 1 is performed as follows. First, the raw rubber sheets (1a) and (1b) drawn from the raw rubber sheet rolls (1A) and (1B) for the surface layer and the base layer are integrated by a guide roll (81). Then, rubber particles (2) are sprayed from the hopper (8) on the surface of the integrated raw rubber sheet (1). This spraying is performed by an appropriate means so that a certain amount of rubber particles (2) is sprayed in the width direction of the raw rubber sheet (1). The particle size of the rubber particles is usually set to a size corresponding to 5 to 70% of the thickness of the raw rubber sheet before the heat and pressure treatment.
【００２０】次いで、ゴム粒子（２）が散布された生ゴ
ムシート（１）を加熱加圧処理装置の加熱ロール（７）
と耐熱性エンドレスベルト（５）の間に連続的に供給
し、生ゴムシート（１）のゴム粒子散布面側に粗面シー
ト（４）を介在させる。加熱処理温度（加硫温度）は、
使用する加硫剤の種類および量ならびに加熱処理時間に
よって適宜選択される。例えば、加硫剤として生ゴムシ
ートに対して０．１〜５重量％の硫黄を使用した場合は
１５０〜１８０℃の温度が推奨される。加熱加圧処理で
得られた模様入りゴムシート（３）は、粗面シート
（４）の剥離の後、製品ロール（３Ａ）としてロール状
に巻き取られる。Next, the raw rubber sheet (1) on which the rubber particles (2) have been sprayed is heated by a heating roll (7) of a heating and pressing treatment apparatus.
And a heat-resistant endless belt (5), and a rough sheet (4) is interposed on the side of the raw rubber sheet (1) on which the rubber particles are dispersed. The heat treatment temperature (vulcanization temperature)
It is appropriately selected depending on the type and amount of the vulcanizing agent to be used and the heat treatment time. For example, when 0.1 to 5% by weight of sulfur is used as the vulcanizing agent based on the raw rubber sheet, a temperature of 150 to 180 ° C is recommended. The patterned rubber sheet (3) obtained by the heating and pressing treatment is wound into a roll as a product roll (3A) after the rough sheet (4) is peeled off.
【００２１】[0021]
【実施例】以下、本発明を実施例により更に詳細に説明
するが、本発明は、その要旨を超えない限り、以下の実
施例に限定されるものではない。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples unless it exceeds the gist of the present invention.
【００２２】実施例１ 図１に示す方法に従い、以下の表１〜３に記載の原料を
使用して模様入りゴムシートを製造した。この際、粗面
シートとしては、表面粗度Ｒａ２５μｍ、厚さ１９５μ
ｍの離型剤処理された紙シートを使用した。Example 1 According to the method shown in FIG. 1, a patterned rubber sheet was produced using the raw materials shown in Tables 1 to 3 below. At this time, the rough sheet has a surface roughness Ra of 25 μm and a thickness of 195 μm.
m release-treated paper sheets were used.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【表２】 [Table 2]
【００２５】[0025]
【表３】 [Table 3]
【００２６】[0026]
【表４】 [Table 4]
【００２７】上記の各生ゴムシート（１ａ）及び（１
ｂ）が一体化された生ゴムシート（１）の表面にゴム粒
子（２）を散布し、加熱ロール（７）と耐熱性エンドレ
スベルト（５）の間に連続的に供給し、同時に、生ゴム
シート（１）のゴム粒子散布面側に粗面シート（４）を
介在させて加圧加熱処理を行った。得られた模様入りゴ
ムシート（３）を製品ロール（３Ａ）としてロール状に
巻き取った。この際、一体化された生ゴムシート（１）
の厚さは１２．４ｍｍであり、加熱圧縮により１０．３
ｍｍに変形された。ゴム粒子（２）の散布量は７０ｇ／
ｍ2とし、加熱ロール（７）の表面温度は１７５℃とし
た。得られた模様入りゴムシート（３）の厚さは１２．
４ｍｍであった。The above raw rubber sheets (1a) and (1a)
The rubber particles (2) are sprayed on the surface of the raw rubber sheet (1) integrated with b) and continuously supplied between the heating roll (7) and the heat-resistant endless belt (5). The pressure heating treatment was performed with the rough surface sheet (4) interposed on the rubber particle scattering surface side of (1). The obtained patterned rubber sheet (3) was wound into a roll as a product roll (3A). At this time, the integrated raw rubber sheet (1)
Has a thickness of 12.4 mm, and is heated to 10.3 mm.
mm. The spray amount of the rubber particles (2) is 70 g /
m 2 and the surface temperature of the heating roll (7) was 175 ° C. The thickness of the obtained patterned rubber sheet (3) is 12.
4 mm.
【００２８】上記の模様入りゴムシート（３）につい
て、表面の目視観察により、ゴムシートに埋設されたゴ
ム粒子の周辺のボイド及び空気の巻き込みによるクレー
タの有無を調査した。調査は、１５０×１５０ｍｍの表
面について、埋設されたゴム粒子の全数と周辺にボイド
が形成されたゴム粒子の数とクレータの数とを計測する
ことによって行った。その結果、埋設されたゴム粒子の
全数は２８０個、周辺にボイドが形成されたゴム粒子の
数は０個、クレータの数は０であった。With respect to the patterned rubber sheet (3), the presence or absence of voids around the rubber particles embedded in the rubber sheet and craters due to air entrapment was examined by visual observation of the surface. The investigation was performed by measuring the total number of buried rubber particles, the number of rubber particles having voids formed around them, and the number of craters on a surface of 150 × 150 mm. As a result, the total number of embedded rubber particles was 280, the number of rubber particles around which voids were formed was 0, and the number of craters was 0.
【００２９】[0029]
【発明の効果】以上説明した本発明によれば、生ゴムシ
ートの中に着色加硫ゴム粒子が埋め込まれる際に着色加
硫ゴム粒子に同伴されて一緒に埋没されんとする空気を
除去することが出来る様に改良された模様入りゴムシー
トの製造方法が提供され、本発明の工業的価値は大き
い。According to the present invention described above, when the colored vulcanized rubber particles are embedded in the raw rubber sheet, the air which is entrained together with the colored vulcanized rubber particles is removed. The present invention provides a method for producing a patterned rubber sheet which is improved so that the present invention can be carried out.
【図１】本発明の好ましい態様の一例の説明図FIG. 1 is a diagram illustrating an example of a preferred embodiment of the present invention.
１Ａ：生ゴムシートロール １Ｂ：生ゴムシートロール １ａ：生ゴムシート １ｂ：生ゴムシート １：生ゴムシート ２：着色加硫ゴム粒子 ３：模様入りゴムシート ４Ａ：粗面シート供給ロール ４Ｂ：粗面シート引取ロール ４：粗面シート ５：耐熱性エンドレスベルト ６１：テンションロール ６２：テンションロール ６３：テンションロール ７：加熱ロール ８：ホッパー ８１：案内ロール ８２：タッチロール 1A: Raw rubber sheet roll 1B: Raw rubber sheet roll 1a: Raw rubber sheet 1b: Raw rubber sheet 1: Raw rubber sheet 2: Colored vulcanized rubber particles 3: Patterned rubber sheet 4A: Rough surface sheet supply roll 4B: Rough surface sheet take-up roll 4 : Rough surface sheet 5: Heat resistant endless belt 61: Tension roll 62: Tension roll 63: Tension roll 7: Heating roll 8: Hopper 81: Guide roll 82: Touch roll
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小倉 英之 神奈川県高座郡寒川町一之宮６−１−３ 日東化工株式会社内 (72)発明者 山上 嘉大 神奈川県高座郡寒川町一之宮６−１−３ 日東化工株式会社内 Ｆターム(参考） 4F203 AA45 AB12 AD08 AG01 AG03 DA11 DB02 DC01 DJ06 DJ11 DL07 DN06 DN24 DN26 ──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Hideyuki Ogura 6-1-3, Samukawa-cho, Koza-gun, Kanagawa Prefecture Nitto Kako Co., Ltd. (72) Inventor Yoshihiro Yamagami 6-1-1, Ichinomiya, Samukawa-cho, Koza-gun, Kanagawa Prefecture 3 Nitto Kako Co., Ltd. F term (reference) 4F203 AA45 AB12 AD08 AG01 AG03 DA11 DB02 DC01 DJ06 DJ11 DL07 DN06 DN24 DN26
Claims (3)
に着色加硫ゴム粒子を散布し、次いで、加熱加圧処理に
よって生ゴムシートの加硫と共に着色加硫ゴム粒子の埋
め込みを行う模様入りゴムシートの製造方法において、
生ゴムシートのゴム粒子散布面側に粗面シートを介在さ
せて加熱加圧処理を行うことを特徴とする模様入りゴム
シートの製造方法。1. A method of spraying colored vulcanized rubber particles on the surface of a raw rubber sheet containing a vulcanizing agent, and then embedding the colored vulcanized rubber particles together with the vulcanization of the raw rubber sheet by heat and pressure treatment. In the method for producing a rubber sheet,
A method for producing a patterned rubber sheet, comprising performing a heating and pressurizing treatment by interposing a roughened sheet on the side of the raw rubber sheet on which the rubber particles are dispersed.
造方法。2. The method according to claim 1, wherein the vulcanizing agent is sulfur.
ートを加熱加圧処理装置の加熱ロールと耐熱性エンドレ
スベルとの間に連続的に供給する請求項１又は２に記載
の製造方法。3. The production method according to claim 1, wherein the raw rubber sheet on which the colored vulcanized rubber particles are scattered is continuously supplied between a heating roll of a heating and pressure treatment device and a heat-resistant endless bell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001048683A JP4513216B2 (en) | 2001-02-23 | 2001-02-23 | Method for producing patterned rubber sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001048683A JP4513216B2 (en) | 2001-02-23 | 2001-02-23 | Method for producing patterned rubber sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002248632A true JP2002248632A (en) | 2002-09-03 |
| JP4513216B2 JP4513216B2 (en) | 2010-07-28 |
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ID=18909911
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|---|---|---|---|
| JP2001048683A Expired - Fee Related JP4513216B2 (en) | 2001-02-23 | 2001-02-23 | Method for producing patterned rubber sheet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248643A (en) * | 2001-02-23 | 2002-09-03 | Nitto Kako Kk | Method for manufacturing pattern-containing rubber sheet |
| JP2015206225A (en) * | 2014-04-22 | 2015-11-19 | 多摩防水技研株式会社 | Waterproof sheet for waterproof construction |
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| JPH0379305A (en) * | 1989-08-21 | 1991-04-04 | Sekisui Chem Co Ltd | Manufacture of hydraulic inorganic molding |
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| JPH10219570A (en) * | 1996-11-29 | 1998-08-18 | Carl Freudenberg:Fa | Floor covering and its production |
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| JP2002248643A (en) * | 2001-02-23 | 2002-09-03 | Nitto Kako Kk | Method for manufacturing pattern-containing rubber sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62198435A (en) * | 1986-02-26 | 1987-09-02 | Bando Chem Ind Ltd | Manufacture of patterned sheet |
| JPH0379305A (en) * | 1989-08-21 | 1991-04-04 | Sekisui Chem Co Ltd | Manufacture of hydraulic inorganic molding |
| JPH04211438A (en) * | 1990-03-13 | 1992-08-03 | Tigers Polymer Corp | Production of vulcanized rubber sheet for laminate |
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| JPH08199775A (en) * | 1995-01-20 | 1996-08-06 | Hayakawa Rubber Co Ltd | Rubber tile, production method thereof, and application method thereof |
| JPH10219570A (en) * | 1996-11-29 | 1998-08-18 | Carl Freudenberg:Fa | Floor covering and its production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248643A (en) * | 2001-02-23 | 2002-09-03 | Nitto Kako Kk | Method for manufacturing pattern-containing rubber sheet |
| JP2015206225A (en) * | 2014-04-22 | 2015-11-19 | 多摩防水技研株式会社 | Waterproof sheet for waterproof construction |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4513216B2 (en) | 2010-07-28 |
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