JP4149849B2 - Pipe lining material - Google Patents

Pipe lining material Download PDF

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Publication number
JP4149849B2
JP4149849B2 JP2003141792A JP2003141792A JP4149849B2 JP 4149849 B2 JP4149849 B2 JP 4149849B2 JP 2003141792 A JP2003141792 A JP 2003141792A JP 2003141792 A JP2003141792 A JP 2003141792A JP 4149849 B2 JP4149849 B2 JP 4149849B2
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Japan
Prior art keywords
lining material
resin film
pipe lining
pipe
layer
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JP2004345112A (en
Inventor
敏隆 中尾
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Takiron Co Ltd
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Takiron Co Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、主として、下水管等の管路の補修に用いられる管ライニング材に関するものである。
【０００２】
【従来の技術】
地中に埋設された下水管等の管路を構成する管材が老朽化した場合、この老朽化した管材を新しい管材に交換することなく、その内周面にライニングを施して当該管路を補修する管ライニング工法が提案され、実用化されている。
【０００３】
この管ライニング工法は、チューブ状の樹脂吸収繊維層を備えた管ライニング材を使用し、管ライニング材の樹脂吸収繊維層に熱硬化性樹脂や紫外線硬化性樹脂等の硬化性樹脂を含浸させた状態で、管ライニング材を管路を構成する管材内に挿入し、管ライニング材の内圧を高めることによって管ライニング材を管材の内周面に押圧しながら、加熱したり、紫外線を照射することによって、樹脂吸収繊維層に含浸されている硬化性樹脂を硬化させ、管材の内周面に管ライニング材によるライニングを施して当該管路を補修する工法である（特許文献１〜２参照）。
【０００４】
【特許文献１】
実公平７−２３２４０号公報
【特許文献２】
実公平７−４２７０１号公報
【０００５】
【発明が解決しようとする課題】
ところで、上記管ライニング工法に使用される管ライニング材は、通常、施工後、管路の内周面を構成する管ライニング材の内表面（反転しながら敷設する管ライニング材の場合、施工前は外表面）に、合成樹脂フィルム等からなる水密層を配設する一方、管ライニング材を施す管材に接する側となる管ライニング材の外表面（反転しながら敷設する管ライニング材の場合、施工前は内表面）に、硬化性樹脂を含浸した樹脂吸収繊維層を配設するようにしている。
【０００６】
このようにして管材に管ライニング材を施すことによって、補修後、管路内を流れる下水等が管ライニング材内に浸透することを、管ライニング材の内表面に配設した合成樹脂フィルム等からなる水密層によって防止できる。
なお、管路内を流れる下水等からは、水圧がほとんどかからないため、実際には、水密層を形成しない場合でも、下水等が管ライニング材内に浸透することはほとんどなく、必要に応じて、この水密層は省略することができる。
【０００７】
これに対して、地下水等は、水圧が高いため、管材に隙間や割れ目等が存在すると、管路外から管材の隙間や割れ目等を通って滲出した地下水等が、硬化性樹脂を含浸、硬化させた樹脂吸収繊維層の微細な空間を通って管ライニング材内に浸透し、管ライニング材が劣化し易くなるという問題があった。
【０００８】
本発明は、上記従来の管ライニング工法に使用される管ライニング材の有する問題点に鑑み、管路外から管材の隙間や割れ目等を通って滲出した地下水等が、管ライニング材内に浸透しないようにした管ライニング材を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記目的を達成するため、本発明の管ライニング材は、チューブ状の樹脂吸収繊維層を備えた管ライニング材において、該管ライニング材を施す管材に接する側となる前記樹脂吸収繊維層の外表面に、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体を、合成樹脂フィルムが外表面側になるように配設したことを特徴とする。
【００１０】
この管ライニング材は、管ライニング材を施す管材に接する側となる樹脂吸収繊維層の外表面に、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体を、合成樹脂フィルムが外表面側になるように配設するようにしているので、積層体の合成繊維製不織布と、樹脂吸収繊維層とを、樹脂吸収繊維層に含浸させた硬化性樹脂が硬化することによって、強固に一体化することができるとともに、積層体の合成樹脂フィルムによって、管路外から管材の隙間や割れ目等を通って滲出した地下水等が、管ライニング材内に浸透することを防止できる。
【００１１】
この場合において、積層体を構成する合成繊維製不織布に、ポリエステル系繊維からなる合成繊維製不織布を、また、積層体を構成する合成樹脂フィルムに、ポリオレフィン系樹脂及び／又はポリアミド系樹脂からなる合成樹脂フィルムを用いることができる。
【００１２】
これにより、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体自体の一体性、さらには、積層体と樹脂吸収繊維層との一体性を高め、管ライニング材を施した管路の耐久性を一層向上することができる。
【００１３】
そして、積層体を構成する合成樹脂フィルムが、ポリオレフィン系樹脂フィルム層とポリアミド系樹脂フィルム層とからなる２層複合フィルムを、ポリオレフィン系樹脂フィルム層が合成繊維製不織布側に、ポリアミド系樹脂フィルム層が外表面側になるように配設するようにすることができる。
【００１４】
これにより、樹脂吸収繊維層に含浸させた硬化性樹脂から発生するスチレン等のガスを封じ込めることができるとともに、剥離紙（離型紙）等を用いることなく、直接ポリアミド系樹脂フィルム層を介してポリオレフィン系樹脂フィルム層を合成繊維製不織布にラミネート加工により融着することができる。
【００１５】
【発明の実施の形態】
以下、本発明の管ライニング材の実施の形態を図面に基づいて説明する。
【００１６】
この管ライニング材１は、管ライニング材１を施す管材２に接する側となる樹脂吸収繊維層１１の外表面（反転しながら敷設する管ライニング材の場合、施工前は内表面）に、合成繊維製不織布１２ａに合成樹脂フィルム１２ｂをラミネート加工により一体形成した積層体１２を、合成樹脂フィルム１２ｂが外表面（反転しながら敷設する管ライニング材の場合、施工前は内表面）側になるように配設し、さらに、管路Ａの内周面を構成する管ライニング材１の内表面（反転しながら敷設する管ライニング材の場合、施工前は外表面）に、合成樹脂フィルム１３を配設するようにしている。
【００１７】
この場合において、樹脂吸収繊維層１１には、従来、管ライニング材の樹脂吸収繊維層として汎用されているポリエステル系繊維等の合成繊維、ガラス繊維等の無機繊維の織布又は不織布を用いることができる。
【００１８】
また、この樹脂吸収繊維層１１に含浸させる硬化性樹脂には、従来、管ライニング材の硬化性樹脂として汎用されている熱硬化性樹脂や紫外線硬化性樹脂等の硬化性樹脂、例えば、不飽和ポリエステル系熱硬化性樹脂を好適に用いることができるが、これに限定されるものでない。
【００１９】
また、積層体１２を構成する合成繊維製不織布１２ａには、汎用性の高いポリエステル系繊維からなる合成繊維製不織布、具体的には、２０〜５０ｇ／ｍ２程度、より具体的には、４０ｇ／ｍ２程度の長繊維ポリエステル系繊維からなる不織布を好適に用いることができるが、これに限定されるものでない。
【００２０】
また、積層体１２を構成する合成樹脂フィルム１２ｂには、ポリエチレン等のポリオレフィン系樹脂又はナイロン等のポリアミド系樹脂からなる合成樹脂フィルムやこれらの多層複合フィルムを用いることができる。
そして、具体的には、ポリエチレン等のポリオレフィン系樹脂フィルム層とナイロン等のポリアミド系樹脂フィルム層とからなる厚さ１００〜５００μｍ程度、より具体的には、１２０μｍ程度の２層複合フィルムを、図１（ｃ）に示すように、ポリオレフィン系樹脂フィルム層１２ｂ１が合成繊維製不織布１２ａ側に、ポリアミド系樹脂フィルム層１２ｂ２が外表面（反転しながら敷設する管ライニング材の場合、施工前は内表面）側になるように配設するようにする。
これにより、樹脂吸収繊維層１１に含浸させた硬化性樹脂から発生するスチレン等のガスを封じ込めることができるとともに、剥離紙（離型紙）等を用いることなく、直接ポリアミド系樹脂フィルム層１２ｂ２を介してポリオレフィン系樹脂フィルム層１２ｂ１を合成繊維製不織布１２ａにラミネート加工により融着することができる。
【００２１】
さらに、合成樹脂フィルム１３には、積層体１２を構成する合成樹脂フィルム１２ｂと同様の、ポリエチレン等のポリオレフィン系樹脂又はナイロン等のポリアミド系樹脂からなる合成樹脂フィルムやこれらの多層複合フィルムを用いることができる。
そして、具体的には、ポリエチレン等のポリオレフィン系樹脂フィルム層とナイロン等のポリアミド系樹脂フィルム層とからなる厚さ１００〜５００μｍ程度、より具体的には、１２０μｍ程度の２層複合フィルムを、図１（ｄ）に示すように、ポリアミド系樹脂フィルム層１３ａが樹脂吸収繊維層１１側に、ポリオレフィン系樹脂フィルム層１３ｂが内表面（反転しながら敷設する管ライニング材の場合、施工前は外表面）側になるように配設するようにする。
これにより、樹脂吸収繊維層１１に含浸させた硬化性樹脂から発生するスチレン等のガスを封じ込めることができる。
なお、合成樹脂フィルム１３は、管路内を流れる下水等からは、水圧がほとんどかからないため、実際には、水密層を形成しない場合でも、下水等が管ライニング材内に浸透することはほとんどないことから、施工後剥離するようにしたり、必要に応じて、そのまま残存させることにより、水密層とすることもできる。
【００２２】
そして、この管ライニング材１は、管ライニング材１を施す管材２に接する側となる樹脂吸収繊維層１１の外表面に、合成繊維製不織布１２ａに合成樹脂フィルム１２ｂをラミネート加工により一体形成した積層体１２を、合成樹脂フィルム１２ｂが外表面側になるように配設するようにしているので、積層体１２の合成繊維製不織布１２ａと、樹脂吸収繊維層１１とを、樹脂吸収繊維層１１に含浸させた硬化性樹脂が硬化することによって、強固に一体化することができるとともに、積層体１２の合成樹脂フィルム１２ｂによって、管路Ａ外から管材２の隙間や割れ目等を通って滲出した地下水等が、管ライニング材１内に浸透することを防止できる。
【００２３】
以上、本発明の管ライニング材について、その実施例に基づいて説明したが、本発明は上記実施例に記載した管ライニング材の構成に限定されるものではなく、上記実施例に記載した管ライニング材に、他の構成材料を積層したり、付加する等、その趣旨を逸脱しない範囲において適宜その構成を変更することができるものである。
【００２４】
【発明の効果】
本発明の管ライニング材によれば、管ライニング材を施す管材に接する側となる樹脂吸収繊維層の外表面に、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体を、合成樹脂フィルムが外表面側になるように配設するようにしているので、積層体の合成繊維製不織布と、樹脂吸収繊維層とを、樹脂吸収繊維層に含浸させた硬化性樹脂が硬化することによって、強固に一体化することができるとともに、積層体の合成樹脂フィルムによって、管路外から管材の隙間や割れ目等を通って滲出した地下水等が、管ライニング材内に浸透することを防止でき、管ライニング材を施した管路の耐久性を向上することができる。
【００２５】
また、積層体を構成する合成繊維製不織布に、ポリエステル系繊維からなる合成繊維製不織布を、また、積層体を構成する合成樹脂フィルムに、ポリオレフィン系樹脂及び／又はポリアミド系樹脂からなる合成樹脂フィルムを用いることにより、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体自体の一体性、さらには、積層体と樹脂吸収繊維層との一体性を高め、管ライニング材を施した管路の耐久性を一層向上することができる。
【００２６】
さらに、積層体を構成する合成樹脂フィルムが、ポリオレフィン系樹脂フィルム層とポリアミド系樹脂フィルム層とからなる２層複合フィルムを、ポリオレフィン系樹脂フィルム層が合成繊維製不織布側に、ポリアミド系樹脂フィルム層が外表面側になるように配設するようにすることにより、樹脂吸収繊維層に含浸させた硬化性樹脂から発生するスチレン等のガスを封じ込めることができるとともに、剥離紙（離型紙）等を用いることなく、直接ポリアミド系樹脂フィルム層を介してポリオレフィン系樹脂フィルム層を合成繊維製不織布にラミネート加工により融着することができる。
【図面の簡単な説明】
【図１】本発明の管ライニング材を施した管路を示し、（ａ）は全体断面図、（ｂ）はその拡大断面図、（ｃ）は（ｂ）のＣ部の拡大断面図、（ｄ）は（ｂ）のＤ部の拡大断面図である。
【符号の説明】
Ａ 管路
１ 管ライニング材
１１ 樹脂吸収繊維層
１２ 積層体
１２ａ 合成繊維製不織布
１２ｂ 合成樹脂フィルム
１２ｂ１ ポリオレフィン系樹脂フィルム層
１２ｂ２ ポリアミド系樹脂フィルム層
１３ 合成樹脂フィルム
１３ａ ポリアミド系樹脂フィルム層
１３ｂ ポリオレフィン系樹脂フィルム層
２ 管材[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a pipe lining material used for repairing a pipeline such as a sewer pipe.
[0002]
[Prior art]
When pipes that make up pipes such as sewage pipes buried in the ground become obsolete, the pipes are repaired by lining the inner peripheral surface without replacing the aging pipes with new pipes. A pipe lining method has been proposed and put into practical use.
[0003]
This pipe lining method uses a pipe lining material provided with a tubular resin absorbent fiber layer, and the resin absorbent fiber layer of the pipe lining material is impregnated with a curable resin such as a thermosetting resin or an ultraviolet curable resin. In this state, the pipe lining material is inserted into the pipe material constituting the pipe line, and the pipe lining material is pressed against the inner peripheral surface of the pipe material by increasing the internal pressure of the pipe lining material, and heated or irradiated with ultraviolet rays. Thus, the curable resin impregnated in the resin-absorbing fiber layer is cured, and the inner peripheral surface of the pipe material is lined with a pipe lining material to repair the pipe line (see Patent Documents 1 and 2).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 7-23240 [Patent Document 2]
Japanese Utility Model Publication No. 7-42701 [0005]
[Problems to be solved by the invention]
By the way, the pipe lining material used in the above pipe lining method is usually the inner surface of the pipe lining material constituting the inner peripheral surface of the pipe line after construction (in the case of pipe lining material laid while being reversed, before construction) On the outer surface, a watertight layer made of synthetic resin film, etc. is provided, while the outer surface of the pipe lining material that is in contact with the pipe material to which the pipe lining material is applied (in the case of a pipe lining material laid while being reversed, before construction) Is provided with a resin-absorbing fiber layer impregnated with a curable resin.
[0006]
By applying the pipe lining material to the pipe material in this way, the sewage, etc. flowing through the pipeline after the repair penetrates into the pipe lining material from a synthetic resin film or the like disposed on the inner surface of the pipe lining material. Can be prevented by a watertight layer.
In addition, since there is almost no water pressure from the sewage that flows in the pipeline, actually, even when a watertight layer is not formed, the sewage hardly penetrates into the pipe lining material. This watertight layer can be omitted.
[0007]
On the other hand, since groundwater, etc. has high water pressure, if there are gaps or cracks in the pipe, the groundwater that has exuded from outside the pipe through gaps or cracks in the pipe impregnates and hardens the curable resin. There was a problem that the pipe lining material easily deteriorates by penetrating into the pipe lining material through the fine space of the resin absorbent fiber layer.
[0008]
In view of the problems of the pipe lining material used in the above-described conventional pipe lining construction method, the present invention does not allow groundwater or the like that has exuded from outside the pipe through gaps or cracks in the pipe material to penetrate into the pipe lining material. An object of the present invention is to provide a pipe lining material.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the pipe lining material of the present invention is a pipe lining material provided with a tubular resin-absorbing fiber layer, the outer surface of the resin-absorbing fiber layer on the side in contact with the pipe material to which the pipe lining material is applied. In addition, a laminate in which a synthetic resin film is integrally formed on a synthetic fiber non-woven fabric by lamination is disposed so that the synthetic resin film is on the outer surface side.
[0010]
This pipe lining material is a laminate in which a synthetic resin film is integrally formed on a synthetic fiber non-woven fabric on the outer surface of a resin absorbent fiber layer that is in contact with a pipe material to which the pipe lining material is applied. Since it is arranged so as to be on the surface side, the curable resin impregnated with the synthetic fiber nonwoven fabric of the laminate and the resin absorbent fiber layer is hardened by curing the curable resin. While being able to integrate, the synthetic resin film of a laminated body can prevent the underground water etc. which exuded from the pipe line through the gap of a pipe material, a crack, etc. penetrate | infiltrate in a pipe lining material.
[0011]
In this case, a synthetic fiber nonwoven fabric made of polyester fiber is used for the synthetic fiber nonwoven fabric constituting the laminate, and a synthetic resin film made of polyolefin resin and / or polyamide resin is used for the synthetic resin film constituting the laminate. A resin film can be used.
[0012]
This improves the integrity of the laminate itself, in which the synthetic resin film is integrally formed on the nonwoven fabric made of synthetic fiber by laminating, and further improves the integrity of the laminate and the resin-absorbing fiber layer, and the pipe line provided with the pipe lining material The durability can be further improved.
[0013]
The synthetic resin film constituting the laminate is a two-layer composite film composed of a polyolefin resin film layer and a polyamide resin film layer, the polyolefin resin film layer is on the synthetic fiber nonwoven fabric side, and the polyamide resin film layer. Can be arranged so as to be on the outer surface side.
[0014]
As a result, gas such as styrene generated from the curable resin impregnated in the resin-absorbing fiber layer can be contained, and polyolefin can be directly passed through the polyamide resin film layer without using release paper (release paper). The resin film layer can be fused to the synthetic fiber nonwoven fabric by laminating.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the pipe lining material of the present invention will be described with reference to the drawings.
[0016]
This pipe lining material 1 is made of synthetic fibers on the outer surface of the resin-absorbing fiber layer 11 that is in contact with the pipe material 2 to which the pipe lining material 1 is applied (in the case of a pipe lining material laid while being reversed, the inner surface before construction). The laminated body 12 in which the synthetic resin film 12b is integrally formed on the non-woven fabric 12a is laminated so that the synthetic resin film 12b is on the outer surface (in the case of a pipe lining material laid while being reversed, the inner surface before construction). Further, the synthetic resin film 13 is disposed on the inner surface of the pipe lining material 1 constituting the inner peripheral surface of the pipe A (in the case of a pipe lining material laid while being reversed, the outer surface is before construction). Like to do.
[0017]
In this case, the resin-absorbing fiber layer 11 may be made of a synthetic fiber such as polyester fiber or a woven or non-woven fabric of inorganic fiber such as glass fiber, which has been widely used as a resin-absorbing fiber layer for tube lining materials. it can.
[0018]
In addition, the curable resin impregnated in the resin-absorbing fiber layer 11 is a curable resin such as a thermosetting resin or an ultraviolet curable resin conventionally used as a curable resin for pipe lining materials, for example, unsaturated. A polyester thermosetting resin can be suitably used, but is not limited thereto.
[0019]
In addition, the synthetic fiber nonwoven fabric 12a constituting the laminate 12 is a synthetic fiber nonwoven fabric made of a highly versatile polyester fiber, specifically about 20 to 50 g / m 2 , more specifically 40 g. A nonwoven fabric composed of long-fiber polyester fibers of about / m 2 can be suitably used, but is not limited thereto.
[0020]
Moreover, the synthetic resin film 12b which comprises the laminated body 12 can use the synthetic resin film which consists of polyolefin resin, such as polyethylene, or polyamide-type resin, such as nylon, and these multilayer composite films.
Specifically, a two-layer composite film having a thickness of about 100 to 500 μm, more specifically about 120 μm, composed of a polyolefin resin film layer such as polyethylene and a polyamide resin film layer such as nylon is illustrated. 1 (c), the polyolefin resin film layer 12b1 is on the synthetic fiber nonwoven fabric 12a side, and the polyamide resin film layer 12b2 is the outer surface (in the case of a pipe lining material that is laid while being reversed, the inner surface before construction) ) To be on the side.
As a result, gas such as styrene generated from the curable resin impregnated in the resin-absorbing fiber layer 11 can be contained, and without using a release paper (release paper) or the like, directly through the polyamide resin film layer 12b2. Then, the polyolefin resin film layer 12b1 can be fused to the synthetic fiber nonwoven fabric 12a by laminating.
[0021]
Further, the synthetic resin film 13 is made of a synthetic resin film made of a polyolefin resin such as polyethylene or a polyamide resin such as nylon, or a multilayer composite film thereof, similar to the synthetic resin film 12b constituting the laminate 12. Can do.
Specifically, a two-layer composite film having a thickness of about 100 to 500 μm, more specifically about 120 μm, composed of a polyolefin resin film layer such as polyethylene and a polyamide resin film layer such as nylon is illustrated. 1 (d), the polyamide-based resin film layer 13a is on the resin-absorbing fiber layer 11 side, and the polyolefin-based resin film layer 13b is the inner surface (in the case of a pipe lining material that is laid while being inverted, the outer surface before construction) ) To be on the side.
As a result, gas such as styrene generated from the curable resin impregnated in the resin-absorbing fiber layer 11 can be contained.
In addition, since the synthetic resin film 13 is hardly subjected to water pressure from sewage or the like flowing in the pipeline, actually, even if a watertight layer is not formed, the sewage or the like hardly penetrates into the pipe lining material. Therefore, it is possible to form a watertight layer by peeling off after construction or by leaving it as it is.
[0022]
The pipe lining material 1 is a laminate in which a synthetic resin non-woven fabric 12a is integrally formed with a synthetic resin film 12b on the outer surface of a resin absorbent fiber layer 11 that is in contact with the pipe material 2 to which the pipe lining material 1 is applied. Since the body 12 is arranged so that the synthetic resin film 12b is on the outer surface side, the synthetic fiber nonwoven fabric 12a of the laminate 12 and the resin absorbent fiber layer 11 are combined with the resin absorbent fiber layer 11. The impregnated curable resin is hardened so that it can be firmly integrated, and the synthetic resin film 12b of the laminate 12 exudes from the outside of the pipe A through the gaps, cracks, etc. of the pipe 2 Or the like can be prevented from penetrating into the pipe lining material 1.
[0023]
As mentioned above, although the pipe lining material of the present invention has been described based on the embodiments thereof, the present invention is not limited to the configuration of the pipe lining materials described in the above embodiments, and the pipe lining described in the above embodiments. It is possible to appropriately change the configuration within a range not departing from the gist, such as laminating or adding other constituent materials to the material.
[0024]
【The invention's effect】
According to the pipe lining material of the present invention, a laminated body in which a synthetic resin film is integrally formed on a synthetic fiber non-woven fabric on the outer surface of a resin-absorbing fiber layer that is in contact with the pipe material to which the pipe lining material is applied is synthesized. Since the resin film is arranged so as to be on the outer surface side, the curable resin impregnated with the synthetic fiber nonwoven fabric and the resin absorbent fiber layer of the laminate is cured. In addition to being able to be firmly integrated, the synthetic resin film of the laminate can prevent the penetration of groundwater that has exuded from outside the pipe through gaps or cracks in the pipe into the pipe lining material. The durability of the pipe line provided with the pipe lining material can be improved.
[0025]
In addition, a synthetic fiber nonwoven fabric made of polyester fiber is used for the synthetic fiber nonwoven fabric constituting the laminate, and a synthetic resin film made of polyolefin resin and / or polyamide resin is used for the synthetic resin film constituting the laminate. To improve the integrity of the laminate itself, in which the synthetic resin film is integrally formed on the synthetic fiber non-woven fabric by laminating, and the integrity of the laminate and the resin-absorbing fiber layer is applied, and a pipe lining material is applied. The durability of the pipeline can be further improved.
[0026]
Furthermore, the synthetic resin film constituting the laminate is a two-layer composite film comprising a polyolefin resin film layer and a polyamide resin film layer, the polyolefin resin film layer is on the synthetic fiber nonwoven fabric side, and the polyamide resin film layer. It is possible to contain gas such as styrene generated from the curable resin impregnated in the resin-absorbing fiber layer, and to release paper (release paper) etc. Without using it, the polyolefin resin film layer can be fused directly to the synthetic fiber nonwoven fabric through the polyamide resin film layer.
[Brief description of the drawings]
FIG. 1 shows a pipe line provided with a pipe lining material of the present invention, wherein (a) is an overall cross-sectional view, (b) is an enlarged cross-sectional view thereof, and (c) is an enlarged cross-sectional view of a portion C in (b) (D) is an expanded sectional view of the D section of (b).
[Explanation of symbols]
A Pipe line 1 Pipe lining material 11 Resin absorbing fiber layer 12 Laminate 12a Synthetic fiber nonwoven fabric 12b Synthetic resin film 12b1 Polyolefin resin film layer 12b2 Polyamide resin film layer 13 Synthetic resin film 13a Polyamide resin film layer 13b Polyolefin resin Film layer 2 Tube material

Claims (4)

チューブ状の樹脂吸収繊維層を備えた管ライニング材において、該管ライニング材を施す管材に接する側となる前記樹脂吸収繊維層の外表面に、合成繊維製不織布に合成樹脂フィルムをラミネート加工により一体形成した積層体を、合成樹脂フィルムが外表面側になるように配設したことを特徴とする管ライニング材。In a tube lining material provided with a tubular resin absorbent fiber layer, a synthetic resin non-woven fabric is integrated with a synthetic resin non-woven fabric on the outer surface of the resin absorbent fiber layer that is in contact with the tube material to which the tube lining material is applied. A pipe lining material, wherein the formed laminate is disposed such that the synthetic resin film is on the outer surface side. 積層体を構成する合成繊維製不織布が、ポリエステル系繊維からなることを特徴とする請求項１記載の管ライニング材。The pipe lining material according to claim 1, wherein the synthetic fiber nonwoven fabric constituting the laminate is made of polyester fiber. 積層体を構成する合成樹脂フィルムが、ポリオレフィン系樹脂及び／又はポリアミド系樹脂からなることを特徴とする請求項１又は２記載の管ライニング材。The pipe lining material according to claim 1 or 2, wherein the synthetic resin film constituting the laminate is made of a polyolefin resin and / or a polyamide resin. 積層体を構成する合成樹脂フィルムが、ポリオレフィン系樹脂フィルム層とポリアミド系樹脂フィルム層とからなる２層複合フィルムを、ポリオレフィン系樹脂フィルム層が合成繊維製不織布側に、ポリアミド系樹脂フィルム層が外表面側になるように配設するようにしたことを特徴とする請求項１又は２記載の管ライニング材。The synthetic resin film constituting the laminate is a two-layer composite film comprising a polyolefin resin film layer and a polyamide resin film layer, the polyolefin resin film layer is on the synthetic fiber nonwoven fabric side, and the polyamide resin film layer is outside 3. The pipe lining material according to claim 1, wherein the pipe lining material is arranged so as to be on a surface side.
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JP4646794B2 (en) * 2005-12-15 2011-03-09 芦森工業株式会社 Pipeline lining method
JP4646795B2 (en) * 2005-12-15 2011-03-09 芦森工業株式会社 Pipeline lining method
JP2010201887A (en) * 2009-03-06 2010-09-16 Shonan Plastic Mfg Co Ltd Pipe-lining material
JP5813945B2 (en) * 2009-12-08 2015-11-17 吉佳エンジニアリング株式会社 Lining material and pipeline repair method
JP2014015016A (en) * 2012-07-11 2014-01-30 Takiron Engineering Kk Pipe lining material provided with buffer material layer
JP6125285B2 (en) * 2013-03-14 2017-05-10 吉佳エンジニアリング株式会社 Lining material and pipeline repair method
KR101913625B1 (en) 2018-05-24 2018-11-01 미래피앤씨(주) Device and method of repairing sever pipe by non-excavation
KR102599932B1 (en) * 2023-03-31 2023-11-09 김철환 Non-woven structure of non-excavated liner for repairing drainpipes and non-excavated liner and construction method using thereof

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Publication number Priority date Publication date Assignee Title
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