JP2530505B2 - Manufacturing method of waterproof sheet with self-adhesive layer - Google Patents
Manufacturing method of waterproof sheet with self-adhesive layerInfo
- Publication number
- JP2530505B2 JP2530505B2 JP2070291A JP7029190A JP2530505B2 JP 2530505 B2 JP2530505 B2 JP 2530505B2 JP 2070291 A JP2070291 A JP 2070291A JP 7029190 A JP7029190 A JP 7029190A JP 2530505 B2 JP2530505 B2 JP 2530505B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- self
- adhesive layer
- rubber sheet
- vulcanized rubber
- 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 - Fee Related
Links
- 239000012790 adhesive layer Substances 0.000 title claims description 37
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 239000004636 vulcanized rubber Substances 0.000 claims description 38
- 238000004073 vulcanization Methods 0.000 claims description 25
- 229920001971 elastomer Polymers 0.000 claims description 22
- 239000005060 rubber Substances 0.000 claims description 22
- 229920005992 thermoplastic resin Polymers 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims description 3
- VKLYZBPBDRELST-UHFFFAOYSA-N ethene;methyl 2-methylprop-2-enoate Chemical compound C=C.COC(=O)C(C)=C VKLYZBPBDRELST-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 description 13
- 239000004743 Polypropylene Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000011387 rubberized asphalt concrete Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、建築物の屋根、床、壁あるいは地下鉄の周
壁などの防水工事に使用できる自着層付き防水シートの
製造法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing a waterproof sheet with a self-adhesive layer that can be used for waterproofing roofs, floors, walls of buildings, or peripheral walls of subways.
（従来技術） 従来における防水シートの代表的なものとしてゴム化
アスファルトシートがある。このシートはゴムとアスフ
ァルトとの混合物からなり、適当な伸縮性を有し、また
耐久性、耐候性に優れているために種々の防水施工に使
用されている。(Prior Art) A typical example of a conventional waterproof sheet is a rubberized asphalt sheet. This sheet is made of a mixture of rubber and asphalt, has appropriate stretchability, and is excellent in durability and weather resistance, and is therefore used for various waterproof constructions.
また、他のものとしてアスファルトルーフィング材と
呼ばれる物があり、このシートはゴム化アルファルトシ
ートにガラス繊維、ポリエステル繊維などを素材とする
不織布あるいは織物を補強材として介在させた構成を有
している。In addition, as another material, there is a material called asphalt roofing material, and this sheet has a structure in which a non-woven fabric or a woven fabric made of glass fiber, polyester fiber or the like is interposed as a reinforcing material in a rubberized Alfalto sheet. .
一方、上記のゴム化アスファルト組成物を使用した防
水シートに代わって、エチレン−プロピレン−タ−ポリ
マー系加硫シート、塩化ビニルシート、あるいはポリオ
レフイン系シート等の基材の片面に種々の自着層を付着
した防水シートが凹凸のある下地面に対しても充分貼着
できて施工しやすいために広く使用されている。特に、
ゴム系未加硫混合物を自着層として使用した場合には自
着層の厚みを大きくして、しかも柔軟性をもたせると、
下地の凹凸面に充分な接着面積が得られる。このような
自着層付き防水シートは、例えば特開昭58−136246号公
報に開示されているが、その構成は加硫ゴムシート、熱
可塑性樹脂フィルムそして自着層（粘着層）を順次重ね
たものであり、上記フィルムは加硫ゴムシートの補強材
であるとともに自着層に配合されているオイル、歴青物
等の移行を阻止するブリード防止材になっている。On the other hand, in place of the waterproof sheet using the rubberized asphalt composition, various self-adhesive layers on one surface of a substrate such as ethylene-propylene-polymer-based vulcanized sheet, vinyl chloride sheet, or polyolefin-based sheet. It is widely used because it is easy to apply the waterproof sheet to which it is attached even on the uneven base surface. In particular,
When a rubber-based unvulcanized mixture is used as the self-adhesive layer, increasing the thickness of the self-adhesive layer and providing flexibility,
A sufficient adhesive area can be obtained on the uneven surface of the base. Such a waterproof sheet with a self-adhesive layer is disclosed in, for example, Japanese Patent Application Laid-Open No. 58-136246, which has a structure in which a vulcanized rubber sheet, a thermoplastic resin film and a self-adhesive layer (adhesive layer) are sequentially laminated. The film serves as a reinforcing material for the vulcanized rubber sheet and an anti-bleeding material for preventing migration of oil, bituminous material, etc. mixed in the self-adhesive layer.
こうした防水シートの製造方法では、カレンダーで圧
延した未加硫ゴムシートに熱可塑性樹脂フィルム、例え
ば加硫温度（150〜160℃）でゴムシートに熱融着しやす
いポリプロピレンフィルムをラミネートして、ライナー
と共に巻き重ね、この巻重ね物を加硫缶へ設置し、ポリ
プロピレンの融解温度以下の150℃で加硫した後、この
フィルム側に自着層を積層していた。In such a method for producing a waterproof sheet, a calender-rolled unvulcanized rubber sheet is laminated with a thermoplastic resin film, for example, a polypropylene film which is easily heat-sealed to a rubber sheet at a vulcanization temperature (150 to 160 ° C.), and a liner. Along with this, the roll was placed in a vulcanization can, and after vulcanization at 150 ° C., which is below the melting temperature of polypropylene, the self-adhesion layer was laminated on the film side.
（発明が解決しようとする課題） しかし、前記防水シートの製造方法では加硫温度がポ
リプロピレンの融点以下であるために、生産性が悪くコ
スト高の最大の原因となってる。そのため、生産性を高
めるため、加硫温度をポリプロピレンフィルムの融点以
上にあげると、該フィルムが溶融して加硫ゴムシートの
表面にはランダムな厚みのフィルムが存在することにな
って、その外観が悪くなり、またこのために自着層をコ
ーティングする場合にはテンションコントロールが困難
になってフィルムと自着層間の接着力が均一にならない
問題もあった。更に、加硫ゴムシートにフィルムの存在
しない箇所があると、こうしたゴムシートは補強効果も
減少し、またこのような箇所は自着層の配合剤である歴
青物、オイル剤等の移行によって膨潤し、防水シートの
寸法変化が大きくなる欠点があった。このため、夏場に
おいて下地面へ敷設された防水シートは、しわが発生
し、外観上好ましくなかった。(Problems to be Solved by the Invention) However, since the vulcanization temperature is not higher than the melting point of polypropylene in the method for producing a waterproof sheet, the productivity is poor and the cost is the greatest cause. Therefore, in order to improve productivity, if the vulcanization temperature is raised above the melting point of the polypropylene film, the film will melt and a film of random thickness will be present on the surface of the vulcanized rubber sheet. When the self-adhesive layer is coated, tension control becomes difficult and the adhesive force between the film and the self-adhesive layer is not uniform. Furthermore, if there is a film-free area on the vulcanized rubber sheet, the reinforcing effect of such a rubber sheet also decreases, and such a area swells due to migration of bituminous substances, oil agents, etc., which are compounding agents for the self-adhesive layer. However, there is a drawback that the dimensional change of the waterproof sheet becomes large. Therefore, the waterproof sheet laid on the ground surface in the summer has wrinkles and is not preferable in appearance.
本発明は上述の如き実情に対処し、熱可塑性樹脂フィ
ルムを加硫ゴムシートに均一に接着させるとともに、接
着力を高めて該フィルムと加硫ゴムシート間の剥離を阻
止し、更に加硫速度を高めて製造時間を大巾に短縮して
なる自着層付き防水シートの製造法を提供することを目
的とする。The present invention copes with the above-mentioned circumstances, and evenly adheres a thermoplastic resin film to a vulcanized rubber sheet, and enhances the adhesive force to prevent peeling between the film and the vulcanized rubber sheet, and further accelerate the vulcanization rate. It is an object of the present invention to provide a method for producing a waterproof sheet with a self-adhesion layer, which has a significantly improved production time and a significantly reduced production time.
（課題を解決するための手段） 即ち、本発明の特徴とするところは加硫ゴムシートの
一方の面に熱可塑性樹脂フィルムと自着層とを順次積層
した自着層付き防水シートの製造法であり、押出機より
押出された未加硫ゴムシートを導入ロールから加硫缶内
へ送り込んで加硫せしめた後、加硫したゴムシートを導
出ロールから加硫缶外へ送り出し、該シートの表面温度
が60〜140℃に維持されている間に60〜140℃の範囲内の
融点をもった熱可塑性樹脂フィルムを前記加硫ゴムシー
トに圧着するとともに熱融着させた後、自着層を前記フ
ィルムの表面に積層した自着層付き防水シートの製造法
にある。尚、前記熱可塑性フィルムは熱融着シートと補
強シートの２層から形成される場合もある。(Means for Solving the Problems) That is, the feature of the present invention lies in a method for producing a waterproof sheet with a self-adhesive layer in which a thermoplastic resin film and a self-adhesive layer are sequentially laminated on one surface of a vulcanized rubber sheet. That is, after the unvulcanized rubber sheet extruded from the extruder is sent from the introduction roll into the vulcanization can for vulcanization, the vulcanized rubber sheet is sent out of the vulcanization can from the derivation roll, After the thermoplastic resin film having a melting point in the range of 60 to 140 ° C. is pressure-bonded to the vulcanized rubber sheet and heat-sealed while the surface temperature is maintained at 60 to 140 ° C., a self-adhesive layer. In a method for producing a waterproof sheet with a self-adhesive layer, which is laminated on the surface of the film. The thermoplastic film may be formed of two layers, a heat fusion sheet and a reinforcing sheet.
以下、本発明を添付図面に従って詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明の製造法によって得られた自着層付き
防水シートの断面図であり、この自着層付き防水シート
１は、加硫ゴムシート２に熱可塑性樹脂フィルム３及び
自着層４を順次積層したものである。上記熱可塑性樹脂
フィルム３は１層もしくは２層でもよく、自着層４内に
配合されたオイル等の粘着付与剤が加硫ゴムシート２へ
移行するのを阻止するとともに、加硫ゴムシート２の補
強材としても作用する。FIG. 1 is a cross-sectional view of a waterproof sheet with a self-adhesive layer obtained by the production method of the present invention. The waterproof sheet 1 with a self-adhesive layer comprises a vulcanized rubber sheet 2, a thermoplastic resin film 3 and a self-adhesive layer. 4 is sequentially laminated. The thermoplastic resin film 3 may be a single layer or a double layer, and prevents the tackifier such as oil blended in the self-adhesive layer 4 from migrating to the vulcanized rubber sheet 2 and the vulcanized rubber sheet 2 Also acts as a reinforcing material.
ここで使用する加硫ゴムシート２は天然ゴム、ポリブ
タジエン、ポリイソプレン、ブチルゴム、クロロプレン
ゴム、スチレン−ブタジエン共重合体ゴム、エチレン−
プロピレン−タ−ポリマーなどの汎用ゴムあるいは熱可
塑性スチレン−ブタジエン共重合体等の熱可塑性弾性
体、もしくはこれらのブレンド物を使用することがで
き、これらに加硫剤、加硫促進剤等を添加したものであ
る。下地の亀裂によって熱可塑性樹脂フィルム３が破損
しても加硫ゴムシート２自身は破損しない。また、上記
ゴムシート２は黒色を初めとする種々の色、例えば白
色、緑色等のカラーゴムシートも使用することが出来
る。The vulcanized rubber sheet 2 used here is natural rubber, polybutadiene, polyisoprene, butyl rubber, chloroprene rubber, styrene-butadiene copolymer rubber, ethylene-
A general-purpose rubber such as propylene-terpolymer or a thermoplastic elastic body such as a thermoplastic styrene-butadiene copolymer, or a blend thereof can be used, and a vulcanizing agent, a vulcanization accelerator, etc. are added to them. It was done. Even if the thermoplastic resin film 3 is damaged by cracks in the base, the vulcanized rubber sheet 2 itself is not damaged. Further, as the rubber sheet 2, it is possible to use color rubber sheets of various colors including black, for example, white, green and the like.
尚、上記ゴムシート２の厚みは0.3〜2.0mmである。 The rubber sheet 2 has a thickness of 0.3 to 2.0 mm.
一方、熱可塑性樹脂フィルム３はポリエチレン、エチ
レン・酢酸ビニル共重合体、エチレンメチルメタクリレ
ート等を素材とする厚さ0.1mm以下のものであり、もし
厚さが0.1mmを越えるとその強度が大きくなり下地の亀
裂に対して追従が不可能になる。On the other hand, the thermoplastic resin film 3 is made of polyethylene, ethylene / vinyl acetate copolymer, ethylene methyl methacrylate or the like and has a thickness of 0.1 mm or less. If the thickness exceeds 0.1 mm, its strength increases. It becomes impossible to follow cracks in the base.
勿論、本発明においては上記フィルム３としてエチレ
ン・酢酸ビニル共重合体、ポリエチレン、エチレンメチ
ルメタクリレート等からなる熱融着シート５と少なくと
も140℃以上の融点をもつポリプロピレン等の補強シー
ト６の２層から形成されるものも使用できる。具体的な
熱融着シート5/補強シート６の組合せは、エチレン・酢
酸ビニル共重合体（EVA）／ポリプロピレン（PP）、低
密度ポリエチレン（LDPE、密度0.924）/PP、超低密度ポ
リエチレン（LLDPE、密度0.910）/PP、高密度ポリエチ
レン（HDPE、密度0.955）/PP、エチレンメチルメタクリ
レート/PPである。Of course, in the present invention, the film 3 comprises two layers of a heat-sealing sheet 5 made of ethylene / vinyl acetate copolymer, polyethylene, ethylene methyl methacrylate, etc. and a reinforcing sheet 6 made of polypropylene having a melting point of 140 ° C. or higher. What is formed can also be used. The specific combination of heat-sealing sheet 5 / reinforcing sheet 6 is ethylene / vinyl acetate copolymer (EVA) / polypropylene (PP), low density polyethylene (LDPE, density 0.924) / PP, ultra low density polyethylene (LLDPE). , Density 0.910) / PP, high density polyethylene (HDPE, density 0.955) / PP, ethylene methyl methacrylate / PP.
更に、上記自着層４は未加硫のゴム組成物であり、粘
着性を高めるために、例えば伸展油、クマロン樹脂、油
溶性フェノール樹脂、石油系炭水素樹脂などの粘着性付
与剤を添加することができ、その添加量はポリマー成分
100重量部に対して50〜400重量部、好ましくは100〜300
重量部であり、50重量部未満では自着層が悪くて粘着性
に劣り、一方400重量部を越えるとゴムシート２を早期
において膨潤させると共に自着層の耐熱性を低下させ
る。尚、自着層の厚みは0.07〜1.0mmである。Further, the self-adhesive layer 4 is an unvulcanized rubber composition, and a tackifier such as extender oil, coumarone resin, oil-soluble phenol resin, or petroleum hydrocarbon resin is added to enhance the tackiness. It is possible to add the amount of the polymer component
50-400 parts by weight per 100 parts by weight, preferably 100-300
If the amount is less than 50 parts by weight, the self-adhesive layer is poor and the tackiness is poor, whereas if it exceeds 400 parts by weight, the rubber sheet 2 swells at an early stage and the heat resistance of the self-adhesive layer is lowered. The thickness of the self-adhesion layer is 0.07 to 1.0 mm.
次に、上記自着層付き防水シートの製造法について説
明する。第３図はこの製造工程の一部を示す図であり、
押出機（図示せず）から押出された未加硫ゴムシート10
は、帆布等のエンドレスベルト11に設置されて導入ロー
ル12から加硫缶13内へ送り込まれる。加硫缶13内の温度
は150〜180℃の範囲内に設置され、この中を通過しつつ
加硫したゴムシート15は導出ロール14から加硫缶13外へ
送り出され、複数個のガイドロールを経由して圧接ロー
ル16で熱可塑性樹脂フィルム17と圧着される。この場
合、加硫ゴムシート15は表面温度60〜140℃の範囲にあ
って熱可塑性樹脂フィルム17を容易に熱融着させる。
尚、圧接ロール16を予め予備加熱する必要はない。Next, a method for manufacturing the waterproof sheet with the self-adhesive layer will be described. FIG. 3 is a view showing a part of this manufacturing process,
Unvulcanized rubber sheet 10 extruded from an extruder (not shown)
Is installed on an endless belt 11 such as canvas and sent from the introduction roll 12 into the vulcanization can 13. The temperature inside the vulcanization can 13 is set within a range of 150 to 180 ° C., and the rubber sheet 15 vulcanized while passing through the vulcanization can 13 is sent out of the vulcanization can 13 from the derivation roll 14 and a plurality of guide rolls are provided. Then, it is pressure-bonded to the thermoplastic resin film 17 by the pressure contact roll 16 via. In this case, the vulcanized rubber sheet 15 has a surface temperature in the range of 60 to 140 ° C., and the thermoplastic resin film 17 is easily heat-sealed.
It is not necessary to preheat the pressure roll 16 in advance.
また、加硫ゴムシート15と上記フィルム17との圧着力
は１〜2kg/cm2である。Further, the pressure bonding force between the vulcanized rubber sheet 15 and the film 17 is 1 to 2 kg / cm 2 .
こうして前記フィルムを積層した加硫ゴムシート15
は、テンションロール18から巻取りロール19に巻かれ
る。A vulcanized rubber sheet 15 in which the films are laminated in this manner
Is wound from the tension roll 18 to the take-up roll 19.
その後、上記加硫ゴムシート15を、第４図に示すよう
に自着材20aを付けるフリクション工程へと移行させ
る。このロールカレンダーでは頭部左右一対のロール2
1、22間に自着材20aがおかれ、その下に位置する上下一
対のフリクションロール23、24間に上記ゴムシート15が
挟持されている。自着層20が上下フリクションロール2
3、24によって加硫ゴムシートのフィルム17側へすり込
まれると、散型紙25が防水シートの自着層20の表面に積
層される。Then, the vulcanized rubber sheet 15 is transferred to the friction step of attaching the self-adhesive material 20a as shown in FIG. In this roll calendar, a pair of rolls 2 on the left and right of the head
A self-adhesive material 20a is placed between 1 and 22, and the rubber sheet 15 is sandwiched between a pair of upper and lower friction rolls 23 and 24 located below the self-adhesive material 20a. Self-adhesive layer 20 is upper and lower friction roll 2
When the vulcanized rubber sheet is rubbed into the film 17 side by 3, 24, the pattern paper 25 is laminated on the surface of the self-adhesive layer 20 of the waterproof sheet.
尚、前記フリクション工程をフィルム圧着工程と連続
させることも可能である。The friction process can be continued with the film pressure bonding process.
（作用） 本発明の製造法においては、ゴムシートを加硫した直
後、この加硫ゴムシートの残存温度が60〜140℃に維持
されている間に熱可塑性樹脂フィルムを加硫ゴムシート
に圧着し、熱融着させるものであり、加硫ゴムシートと
熱可塑性樹脂フィルムとの接着力が高まるとともに接着
力も均一になり、更に加硫ゴムシートの加硫温度を高め
て加硫速度をあげることができて自着層付き防水シート
を短時間に製造することもできる。(Operation) In the production method of the present invention, immediately after vulcanizing the rubber sheet, the thermoplastic resin film is pressure-bonded to the vulcanized rubber sheet while the residual temperature of the vulcanized rubber sheet is maintained at 60 to 140 ° C. However, the adhesive force between the vulcanized rubber sheet and the thermoplastic resin film is increased and the adhesive force becomes uniform, and the vulcanization speed of the vulcanized rubber sheet is increased by further increasing the vulcanization temperature of the vulcanized rubber sheet. Therefore, the waterproof sheet with the self-adhesive layer can be manufactured in a short time.
次に、本発明の実施例を説明する。 Next, examples of the present invention will be described.
（実施例） 第１表に示すエチレン−プロピレン−ターポリマー
（EPDM）ゴム配合物を押出機で厚さ1.0mm、巾1mのゴム
シートに押し出し、このゴムシートを連続加硫機（加硫
缶内の温度150〜180℃、ゴムシートの移動速度1.2m/
分）へ導入して加硫ゴムシートとし、次いで加硫ゴムシ
ートの表面温度が120〜125℃になるところで所定の熱可
塑性樹脂フィルムを加硫ゴムシートに圧着し、同時に熱
融着させて、このシートを30℃まで冷却させた後、ロー
ルに巻き取った。その後、上記加硫ゴムシートフリクシ
ョンロールに0.5kg/cm2で挟持し、第２表に示す自着材
をフリクションして加硫ゴムシートのフィルム表面上に
厚さ0.5mmの自着層を形成し、更にその上に離型紙を張
り付けて自着層付き防水シートを得た。(Example) An ethylene-propylene-terpolymer (EPDM) rubber compound shown in Table 1 was extruded with an extruder into a rubber sheet having a thickness of 1.0 mm and a width of 1 m, and the rubber sheet was continuously vulcanized (vulcanized can). Inside temperature 150-180 ℃, rubber sheet moving speed 1.2m /
Min)) to form a vulcanized rubber sheet, and then, when the surface temperature of the vulcanized rubber sheet reaches 120 to 125 ° C., a predetermined thermoplastic resin film is pressure-bonded to the vulcanized rubber sheet, and at the same time heat-sealed, The sheet was cooled to 30 ° C. and then wound on a roll. Then, it is sandwiched between the vulcanized rubber sheet friction rolls at 0.5 kg / cm 2 , and the self-adhesive materials shown in Table 2 are frictioned to form a self-adhesive layer having a thickness of 0.5 mm on the film surface of the vulcanized rubber sheet. Then, a release paper was further attached thereon to obtain a waterproof sheet with a self-adhesion layer.
また、従来例として厚さ30μのポリプロピレンと厚さ
1.0mm、巾1mのEPDMシート（配合は第１表と同じ）とを
積層し、これらを帆布とともに巻き重ねて加硫缶に投入
して加硫し、フィルム付の加硫ゴムシートを得た。次い
で、実施例と同じく自着層をフィルムの表面に積層して
自着層付き防水シートを得た。In addition, as a conventional example, polypropylene with a thickness of 30μ and thickness
A 1.0 mm, 1 m wide EPDM sheet (compounding is the same as in Table 1) was laminated, and these were wrapped with canvas and put into a vulcanization can for vulcanization to obtain a vulcanized rubber sheet with a film. . Then, a self-adhesive layer was laminated on the surface of the film in the same manner as in Examples to obtain a waterproof sheet with a self-adhesive layer.
上記方法によって得られた防水シートを300mm×50mm
に切断して、加硫ゴムシートとフィルム間の剥離テスト
を行なった。The waterproof sheet obtained by the above method is 300 mm x 50 mm
It was cut into sheets, and a peeling test between the vulcanized rubber sheet and the film was conducted.
その結果は第３表に示される。 The results are shown in Table 3.
これらの結果によると、本発明の製造法では加硫温度
を高くして加硫時間を短縮することが可能になり、また
フィルムと加硫ゴムシート間の接着力も充分で、その破
壊状態もフィルム破壊になった。 According to these results, in the production method of the present invention, it becomes possible to raise the vulcanization temperature to shorten the vulcanization time, and also the adhesive force between the film and the vulcanized rubber sheet is sufficient, and the ruptured state is also the film. It was destroyed.
（効果） 以上のように本発明の製造法では、ゴムシートの加硫
温度を高め、そして加硫速度を上げることにより加硫ゴ
ムシートを短時間で得ることが出来、また上記加硫ゴム
シートの残存温度を有効に利用することによって熱可塑
性樹脂フィルムを加硫ゴムシートに圧着、熱融着させ、
しかもその間の接着力も従来と変わらない効果を有して
いる。(Effects) As described above, in the production method of the present invention, the vulcanized rubber sheet can be obtained in a short time by increasing the vulcanization temperature of the rubber sheet and increasing the vulcanization speed. The thermoplastic resin film is pressure-bonded to the vulcanized rubber sheet by effectively utilizing the residual temperature of
Moreover, the adhesive force between them has the same effect as before.
【図面の簡単な説明】 第１図は本発明の製造法によって得られた自着層付き防
水シートの断面図、第２図は同じく本発明の製造法によ
って得られた自着層付き防水シートの断面図、第３図は
本発明の製造法における加硫工程及びフィルム圧着工程
を示す説明図、そして第４図は自着層をフィルムの上に
積層する工程を示す説明図である。 １……自着層付き防水シート ２、15……加硫ゴムシート ３、17……熱可塑性樹脂フィルム ４、20……自着層 ５……熱融着シート ６……補強シートBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a waterproof sheet with a self-adhesion layer obtained by the production method of the present invention, and FIG. 2 is a waterproof sheet with a self-adhesion layer obtained by the production method of the present invention. FIG. 3 is an explanatory view showing a vulcanizing step and a film pressure bonding step in the production method of the present invention, and FIG. 4 is an explanatory view showing a step of laminating a self-adhesive layer on a film. 1 …… Waterproof sheet with self-adhesive layer 2,15 …… Vulcanized rubber sheet 3,17 …… Thermoplastic resin film 4,20 …… Self-adhesion layer 5 …… Thermal fusion sheet 6 …… Reinforcement sheet
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−262130（ＪＰ，Ａ) 特開 平２−89639（ＪＰ，Ａ) 特開 昭55−126437（ＪＰ，Ａ) 特開 昭55−87547（ＪＰ，Ａ) 特開 昭56−117647（ＪＰ，Ａ) 特公 昭62−19304（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-1-262130 (JP, A) JP-A-2-89639 (JP, A) JP-A-55-126437 (JP, A) JP-A-55- 87547 (JP, A) JP 56-117647 (JP, A) JP 62-19304 (JP, B2)
Claims (3)
フィルムと自着層とを順次積層した自着層付き防水シー
トの製造法であり、押出機より押出された未加硫ゴムシ
ートを導入ロールから加硫缶内へ送り込んで加硫せしめ
た後、加硫したゴムシートを導出ロールから加硫缶外へ
送り出し、該シートの表面温度が60〜140℃に維持され
ている間に60〜140℃の範囲内の融点をもった熱可塑性
樹脂フィルムを前記加硫ゴムシートに圧着するとともに
熱融着させた後、自着材を前記フィルムの表面に積層し
たことを特徴とする自着層付き防水シートの製造法。1. A method for producing a waterproof sheet with a self-adhesive layer, which comprises a thermoplastic resin film and a self-adhesive layer sequentially laminated on one surface of a vulcanized rubber sheet, which is an unvulcanized rubber sheet extruded from an extruder. After being sent from the introduction roll into the vulcanization can for vulcanization, the vulcanized rubber sheet is sent out of the vulcanization can from the derivation roll, while the surface temperature of the sheet is maintained at 60 to 140 ° C. A thermoplastic resin film having a melting point in the range of 60 to 140 ° C. is pressure-bonded to the vulcanized rubber sheet and is heat-sealed, and then a self-adhesive material is laminated on the surface of the film. A method of manufacturing a waterproof sheet with an adhesive layer.
強シートの２層から形成されている請求項１記載の自着
層付き防水シートの製造法。2. The method for producing a waterproof sheet with a self-adhesive layer according to claim 1, wherein the thermoplastic resin film is formed of two layers of a heat-sealing sheet and a reinforcing sheet.
ビニル共重合体、ポリエチレン、エチレンメチルメタク
リレートから選ばれてなる熱可塑性樹脂である請求項２
記載の自着層付き防水シートの製造法。3. The heat-sealing sheet is a thermoplastic resin selected from at least ethylene / vinyl acetate copolymer, polyethylene and ethylene methyl methacrylate.
A method for producing a waterproof sheet with a self-adhesive layer as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070291A JP2530505B2 (en) | 1990-03-20 | 1990-03-20 | Manufacturing method of waterproof sheet with self-adhesive layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2070291A JP2530505B2 (en) | 1990-03-20 | 1990-03-20 | Manufacturing method of waterproof sheet with self-adhesive layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03270924A JPH03270924A (en) | 1991-12-03 |
| JP2530505B2 true JP2530505B2 (en) | 1996-09-04 |
Family
ID=13427230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2070291A Expired - Fee Related JP2530505B2 (en) | 1990-03-20 | 1990-03-20 | Manufacturing method of waterproof sheet with self-adhesive layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530505B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003035013A (en) * | 2001-07-26 | 2003-02-07 | Mitsuboshi Belting Ltd | Waterproof sheet fixing method |
| JP4829608B2 (en) * | 2005-12-22 | 2011-12-07 | 株式会社金陽社 | Method for producing semiconductive seamless belt |
-
1990
- 1990-03-20 JP JP2070291A patent/JP2530505B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03270924A (en) | 1991-12-03 |
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