JP3452370B2 - Flexible tube for transferring chlorine-containing hot water - Google Patents

Flexible tube for transferring chlorine-containing hot water

Info

Publication number
JP3452370B2
JP3452370B2 JP36016391A JP36016391A JP3452370B2 JP 3452370 B2 JP3452370 B2 JP 3452370B2 JP 36016391 A JP36016391 A JP 36016391A JP 36016391 A JP36016391 A JP 36016391A JP 3452370 B2 JP3452370 B2 JP 3452370B2
Authority
JP
Japan
Prior art keywords
hot water
tube
flexible tube
chlorine
weight
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
Application number
JP36016391A
Other languages
Japanese (ja)
Other versions
JPH05177733A (en
Inventor
修一 吉嶺
一志 和田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurabe Industrial Co Ltd
Original Assignee
Kurabe Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kurabe Industrial Co Ltd filed Critical Kurabe Industrial Co Ltd
Priority to JP36016391A priority Critical patent/JP3452370B2/en
Publication of JPH05177733A publication Critical patent/JPH05177733A/en
Application granted granted Critical
Publication of JP3452370B2 publication Critical patent/JP3452370B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、温水道水などの塩素含
有温水に対する耐久性に優れた可撓性チューブに関す
る。更に詳しくは、例えば洋風便器等に備え付けられる
局部洗浄装置などに温水道水を移送供給する目的で用い
られる可撓性チューブに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible tube having excellent durability against hot water containing chlorine such as hot tap water. More specifically, the present invention relates to a flexible tube used for the purpose of transferring and supplying hot tap water to, for example, a local cleaning device provided in a Western style toilet or the like.

【0002】[0002]

【従来の技術】従来より、例えば洋風便器に備え付けら
れる局部洗浄装置などにおいては、温水道水を該装置内
に配管された給湯管を用いて目的の場所に移送供給して
いる。一般に、この種の局部洗浄装置の噴射機構は、該
装置内に設けられた貯水タンク内の温水道水が給湯管を
通り、洗浄ノズル等の温水噴射器から噴射するように構
成されているが、この貯水タンクから温水噴射器までを
連通配管する給湯管としては、従来耐熱性や可撓性に優
れたシリコーンゴムチューブが使用されている。実開平
2−33875号公報には、局部洗浄装置に使用される
給湯管の配管例が詳しく述べられているが、シリコーン
ゴムチューブは半架橋状態で成形され、更に熱風架橋に
よりその形を固定することができるため、上記公報に示
されたごとく、「S」字状に曲成されて使用することも
できる。
2. Description of the Related Art Conventionally, for example, in a local cleaning device installed in a Western-style toilet, hot tap water is transferred and supplied to a desired place by using a hot water supply pipe provided inside the device. Generally, the injection mechanism of this type of local cleaning device is configured so that hot tap water in a water storage tank provided in the device passes through a hot water supply pipe and is injected from a hot water injector such as a cleaning nozzle. As a hot water supply pipe for connecting the water storage tank to the hot water injector, a silicone rubber tube having excellent heat resistance and flexibility has been conventionally used. Japanese Utility Model Laid-Open No. 2-33875 describes in detail an example of piping for a hot water supply pipe used in a local cleaning device. A silicone rubber tube is molded in a semi-crosslinked state, and its shape is fixed by hot air crosslinking. Therefore, as shown in the above publication, it can be used by being bent into an "S" shape.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、シリコ
ーンゴムチューブは、温水道水に長期間接触している
と、温水道水に含有される塩素(実際は次亜塩素酸類等
の形で含まれているとされる)に侵されてしまい、チュ
ーブ材料の劣化による薄肉化やクラック等が発生すると
いう問題を抱えている。また、シリコーンゴムチューブ
は柔らかく弾性力に乏しいため、使用中に偏平状に潰れ
たり、折れ曲がり現象を起こしてしまい、温水道水の移
送に支障をきたすこともあった。
However, when the silicone rubber tube is in contact with hot tap water for a long period of time, it is contained in chlorine (actually, in the form of hypochlorous acid, etc.) contained in the hot tap water. That is, the tube material is deteriorated and the tube material is thinned and cracked. In addition, since the silicone rubber tube is soft and has poor elasticity, it may be flattened or bent during use, which may hinder the transfer of hot tap water.

【0004】本発明はこのような点に基づいてなされた
ものでその目的とするところは、長期間にわたって塩素
含有温水の影響を受けず、また好ましくは「S」字状に
も何らかの方法で成形でき、使い勝手においてもシリコ
ーンゴムチューブと同等以上であるとともに、使用中に
潰れや折れ曲がりなどの変形が生じず安定して温水道水
の移送を行うことのできる可撓性チューブを提供するこ
とにある。
The present invention has been made on the basis of such a point, and the object thereof is not to be affected by chlorine-containing hot water for a long period of time, and it is preferably formed into an "S" shape by some method. It is possible to provide a flexible tube which can be used and is equivalent to or more than a silicone rubber tube in terms of usability, and which can stably transfer hot tap water without being deformed such as being crushed or bent during use. .

【0005】[0005]

【課題を解決するための手段】上記目的を達成するべく
本発明の請求項1による塩素含有温水移送可撓性チュー
ブは、テトラフルオロエチレン−プロピレン共重合体を
主体とし、ビカット軟化点が40℃を超えるエチレン系
重合体が混合された組成物を架橋してなることを特徴と
するものである。又、請求項2による塩素含有温水移送
可撓性チューブは、請求項1記載の塩素含有温水移送用
可撓性チューブにおいて、上記組成物は、テトラフルオ
ロエチレン−プロピレン共重合体100重量部に対し、
ビカット軟化点が40℃を超えるエチレン系重合体10
重量部以上50重量部以下が混合されていることを特徴
とするものである。以上
In order to achieve the above object, a flexible tube containing chlorine containing hot water according to claim 1 of the present invention is mainly composed of tetrafluoroethylene-propylene copolymer and has a Vicat softening point of 40 ° C. Over ethylene
It is characterized by being formed by crosslinking a composition in which a polymer is mixed . Also, transfer of hot water containing chlorine according to claim 2
The flexible tube is for transporting hot water containing chlorine according to claim 1.
In a flexible tube, the composition is tetrafluoro
With respect to 100 parts by weight of polyethylene-propylene copolymer,
Ethylene polymer 10 having a Vicat softening point of over 40 ° C
Characterized by mixing more than 50 parts by weight
It is what that's all

【0006】テトラフルオロエチレン−プロピレン共重
合体としては、例えば商品名:アフラスとして旭硝子
(株)から市販されたものなどを用いれば良く、これに
各種の充填剤や架橋剤を加えることにより本発明におけ
る組成物とされる。この組成物は押出成形後、公知の方
法で加熱架橋されることにより架橋チューブとなる。
尚、架橋は電子線架橋でも良く、この場合は組成物中の
架橋剤は特に必要無くなる。
As the tetrafluoroethylene-propylene copolymer, for example, one commercially available from Asahi Glass Co., Ltd. under the trade name of Aflas may be used, and the present invention can be used by adding various fillers and crosslinking agents. In the composition. After the composition is extruded, the composition is heat-crosslinked by a known method to form a crosslinked tube.
The crosslinking may be electron beam crosslinking, and in this case, the crosslinking agent in the composition is not particularly necessary.

【0007】また上記組成物は、チューブを「S」字状
に整形するために、好ましくはJIS K 6730(1
981)に規定されているビカット軟化点が40℃を超
えるエチレン系重合体を含んでいることが好ましく、更
に好ましくは該エチレン系重合体はテトラフルオロエチ
レン−プロピレン共重合体100重量部に対して、10
重量部以上50重量部以下混合されることが好ましい。
「S」字状の整形は、エチレン系重合体の結晶を利用し
た熱セットで行う。エチレン系重合体は、ビカット軟化
点が40℃を超えれば何でも良いが、好ましくは柔軟性
の確保のため100℃以下のものを使用する。ビカット
軟化点が40℃未満では、温水道水を移送する際に
「S」字状が崩れてしまい好ましくない。また、エチレ
ン系重合体の混合量が10重量部未満では熱セットが不
充分であり、50重量部を超えると、やや柔軟性が失わ
れるとともに、耐塩素含有温水性が低下してしまい好ま
しくない。
The above composition is also preferably JIS K 6730 (1) in order to shape the tube into an "S" shape.
981), it preferably contains an ethylene-based polymer having a Vicat softening point of higher than 40 ° C., and more preferably the ethylene-based polymer is based on 100 parts by weight of a tetrafluoroethylene-propylene copolymer. 10,
It is preferable that the mixing amount is 50 parts by weight or more and 50 parts by weight or less.
The "S" -shaped shaping is performed by heat setting using crystals of an ethylene-based polymer. Any ethylene-based polymer may be used as long as it has a Vicat softening point of higher than 40 ° C., but preferably 100 ° C. or lower is used to ensure flexibility. When the Vicat softening point is lower than 40 ° C, the "S" shape is broken when the hot tap water is transferred, which is not preferable. Further, if the mixing amount of the ethylene-based polymer is less than 10 parts by weight, the heat setting is insufficient, and if it exceeds 50 parts by weight, the flexibility is slightly lost and the chlorine-containing hot water is deteriorated, which is not preferable. .

【0008】[0008]

【作 用】テトラフルオロエチレン−プロピレン共重合
体は、塩素含有温水に長期間接触しても劣化しない特性
と、柔軟性とを兼ね備えているため、これを主体とした
組成物からなるチューブは塩素含有温水を用いる機器で
の使用に最適なものとなる。更に、テトラフルオロエチ
レン−プロピレン共重合体を主体とした組成物がエチレ
ン系重合体を含んでいる場合には、上記の優れた特性を
保持したまま、熱セットにより「S」字状など所望の形
状とすることができる。また、テトラフルオロエチレン
−プロピレン共重合体は、弾性力にも優れているため、
使用中のチューブの潰れや折れ曲がりなどの変形は生じ
ず、安定して温水道水の移送を行うことができる。
[Operation] Since the tetrafluoroethylene-propylene copolymer has both the property of not deteriorating even if it is exposed to warm water containing chlorine for a long time and the flexibility, the tube made of a composition mainly made of this is made of chlorine. It is optimal for use in equipment that uses hot water. Further, when the composition mainly composed of tetrafluoroethylene-propylene copolymer contains an ethylene-based polymer, a desired "S" shape such as an "S" shape can be obtained by heat setting while maintaining the above excellent properties. It can be shaped. Further, the tetrafluoroethylene-propylene copolymer is also excellent in elastic force,
Deformation such as crushing and bending of the tube during use does not occur, and hot water can be stably transferred.

【0009】[0009]

【実施例】以下に実施例を示し本発明の内容を更に詳し
く説明する。 《実施例1》まず実施例1として、テトラフルオロエチ
レン−プロピレン共重合体100重量部に、食品用炭酸
カルシウム60重量部、トリアリルイソシアヌレート3
重量部及びジクミルパーオキシド2重量部を混合してな
る組成物を、外径7.5mm、内径5mmに押出成形し
てチューブを作製した。このチューブはJIS硬度73
(JIS K 6301 A形)と適度な柔軟性を示し
た。
EXAMPLES The contents of the present invention will be described in more detail with reference to the following examples. Example 1 First, as Example 1, 100 parts by weight of tetrafluoroethylene-propylene copolymer, 60 parts by weight of food grade calcium carbonate, and triallyl isocyanurate 3 were added.
A tube was prepared by extruding a composition obtained by mixing 2 parts by weight of dicumyl peroxide and 2 parts by weight of dicumyl peroxide into an outer diameter of 7.5 mm and an inner diameter of 5 mm. This tube is JIS hardness 73
(JIS K 6301 A type) showed moderate flexibility.

【0010】《比較例》次に、上記実施例1のチューブ
の特性を従来品と比較して評価するために、比較例とし
て、市販のシリコーンゴム[東芝シリコーン(株)製、
商品名:TSE2571−u]を架橋剤と混合した後、
実施例1と同様にチューブ状に押し出し、直ちに熱風架
橋(一次架橋)を施したものに更に150℃×2h二次
架橋させたものを用意した。
Comparative Example Next, in order to evaluate the characteristics of the tube of Example 1 in comparison with conventional products, as a comparative example, a commercially available silicone rubber [manufactured by Toshiba Silicone Co., Ltd.,
After mixing the trade name: TSE2571-u] with the cross-linking agent,
A tube was extruded in the same manner as in Example 1 and immediately hot-air crosslinked (primary crosslinked) was further crosslinked at 150 ° C. for 2 hours to prepare secondary crosslinking.

【0011】ここで、実施例1のチューブと比較例のチ
ューブについて、耐塩素含有温水性に関する比較試験を
以下の方法で行った。まず、各々のチューブを縦に切り
裂き、JIS K 6301に規定された2号ダンベルに
て打ち抜きを行い試験試料とした。次にそれらの試料に
対して加速試験として、さらし粉50PPMを含む10
0℃の温水中に浸漬し放置した。浸漬後1週間毎に取り
出し、硬度、引張強度、伸びの各試験をJIS K 63
01に基づいて行い、常態との比較をした。試験の結果
は表1に示すとおりである。
Here, the tube of Example 1 and the tube of Comparative Example were subjected to a comparative test for chlorine-containing hot water by the following method. First, each tube was vertically cut and punched with a No. 2 dumbbell specified in JIS K 6301 to obtain a test sample. Then, as an accelerated test for those samples, 10 including the bleached powder 50PPM was used.
It was immersed in warm water of 0 ° C. and left to stand. It is taken out every one week after immersion, and each test of hardness, tensile strength and elongation is performed according to JIS K 63.
01 and compared with the normal state. The test results are shown in Table 1.

【0012】[0012]

【表1】 [Table 1]

【0013】《実施例2》また実施例2として、実施例
1の組成物において、テトラフルオロエチレン−プロピ
レン共重合体100重量部に代えて、テトラフルオロエ
チレン−プロピレン共重合体70重量部とエチレン−メ
タクリル酸メチル共重合体[住友化学工業(株)製、商
品名:アクリフト、グレード:WH401、ビカット軟
化点50℃]30重量部との混合物を用いた他は実施例
1と同様にしてチューブを作製した。このチューブもJ
IS硬度76(JIS K 6301 A形)と適度な柔
軟性を示していた。また、耐塩素含有温水性についても
実施例1と同様な試験を行い評価した。結果は表1に併
記した。
Example 2 As Example 2, in the composition of Example 1, 70 parts by weight of tetrafluoroethylene-propylene copolymer and ethylene were used instead of 100 parts by weight of tetrafluoroethylene-propylene copolymer. -Tube in the same manner as in Example 1 except that a mixture of 30 parts by weight of methyl methacrylate copolymer [Sumitomo Chemical Co., Ltd., trade name: Acryft, grade: WH401, Vicat softening point 50 ° C] was used. Was produced. This tube is also J
It showed an IS hardness of 76 (JIS K 6301 A type) and an appropriate degree of flexibility. Further, the chlorine-containing hot water was evaluated by conducting the same test as in Example 1. The results are also shown in Table 1.

【0014】本実施例では更に、上記試験とは別に耐変
形性及び整形性の評価も行った。まず、耐変形性の評価
は、各々のチューブから約300mmの試料を採り、試
料の両端を保持しながら円をつくる。更に、両端を交差
させ水平方向に引っ張り、円の内径を漸次小さく絞って
ゆく。このとき、試料が潰れや折れ曲がりを起こす直前
の曲げ径を金尺で測定した。整形性の評価は、チューブ
が「S」字状になるようにクランプで固定し、100℃
で5分間加熱した。その後直ちに水冷してクランプを開
放した後、更に40℃で12時間放置し、図1に示した
如く整形されているかどうかを目視にて確認した。これ
らの結果も表1に併せて示した。
In addition to the above tests, the deformation resistance and the formability were also evaluated in this example. First, in the evaluation of deformation resistance, a sample of about 300 mm is taken from each tube, and a circle is formed while holding both ends of the sample. Further, the both ends are crossed and pulled in the horizontal direction to gradually reduce the inner diameter of the circle. At this time, the bending diameter immediately before the sample was crushed or bent was measured with a metal ruler. To evaluate the formability, clamp the tube so that it has an "S" shape, and
Heated for 5 minutes. Immediately thereafter, the water was cooled and the clamp was opened, and then the clamp was left at 40 ° C. for 12 hours, and it was visually confirmed whether or not it was shaped as shown in FIG. These results are also shown in Table 1.

【0015】表1の結果からもわかるように、本発明に
よるチューブ(実施例1及び実施例2)は、塩素含有温
水に対して高い耐久性を示しており、更に変化の仕方も
本質的にシリコーンゴムチューブ(比較例)と異なるこ
とがわかる。また、ビカット軟化点が40℃を超えるエ
チレン系重合体を加えた実施例2のチューブについては
整形も可能であり、洋風便器に備え付けられる局部洗浄
装置などでの使用に好適である。
As can be seen from the results shown in Table 1, the tubes according to the present invention (Examples 1 and 2) have high durability against the chlorine-containing hot water, and the manner of change is also essential. It can be seen that it is different from the silicone rubber tube (comparative example). Further, the tube of Example 2 to which the ethylene polymer having a Vicat softening point of higher than 40 ° C. was added, can be shaped, and is suitable for use in a local cleaning device equipped in a Western-style toilet.

【0016】[0016]

【発明の効果】以上詳述したように本発明による塩素含
有温水移送用可撓性チューブは、優れた耐塩素含有温水
性と柔軟性を有し、また所望の形状に整形することがで
きるとともに、使用中に変形などを生じることもなく安
定して温水道水の移送を行うことができる。したがっ
て、洋風便器に備え付けられる局部洗浄装置などで使用
可能なことは勿論、温水道水などの塩素含有温水を用い
る全ての機器に使用でき、機器の性能向上や安全性向上
に大きく貢献できるものである。
As described in detail above, the flexible tube for transporting hot water containing chlorine according to the present invention has excellent resistance to hot water containing chlorine and flexibility and can be shaped into a desired shape. The hot tap water can be stably transferred without deformation during use. Therefore, it can be used not only with a local cleaning device installed in a Western-style toilet, but also with all equipment that uses hot water containing chlorine, such as hot tap water, which can greatly contribute to improving the performance and safety of the equipment. is there.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による塩素含有温水移送用可撓性チュー
ブを「S」字状に整形した状態を示す斜視図である。
FIG. 1 is a perspective view showing a state in which a flexible tube for transferring hot water containing chlorine according to the present invention is shaped into an “S” shape.

【符号の説明】[Explanation of symbols]

1 チューブ 1 tube

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B29C 47/00 F16L 9/12 C08L 23/08 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) B29C 47/00 F16L 9/12 C08L 23/08

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 塩素含有温水を移送する可撓性チューブ
において、該チューブは、テトラフルオロエチレン−プ
ロピレン共重合体を主体とし、ビカット軟化点が40℃
を超えるエチレン系重合体が混合された組成物を架橋し
てなることを特徴とする塩素含有温水移送用可撓性チュ
ーブ。
1. A flexible tube for transporting chlorine-containing hot water, the tube is tetrafluoroethylene - mainly of propylene copolymer, the Vicat softening point of 40 ° C.
A flexible tube for transporting hot water containing chlorine, which is obtained by cross-linking a composition in which an ethylene-based polymer exceeding the above is cross-linked.
【請求項2】 請求項1記載の塩素含有温水移送用可撓
性チューブにおいて、上記組成物は、テトラフルオロエ
チレン−プロピレン共重合体100重量部に対し、ビカ
ット軟化点が40℃を超えるエチレン系重合体10重量
部以上50重量部以下が混合されていることを特徴とす
る塩素含有温水移送用可撓性チューブ。
2. The flexible tube for transporting hot water containing chlorine according to claim 1, wherein the composition is tetrafluoroethane.
100 parts by weight of the ethylene-propylene copolymer,
Ethylene polymer having a softening point of over 40 ° C 10 weight
1 to 50 parts by weight are mixed, and a chlorine-containing hot water transfer flexible tube is characterized.
JP36016391A 1991-12-27 1991-12-27 Flexible tube for transferring chlorine-containing hot water Expired - Fee Related JP3452370B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36016391A JP3452370B2 (en) 1991-12-27 1991-12-27 Flexible tube for transferring chlorine-containing hot water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36016391A JP3452370B2 (en) 1991-12-27 1991-12-27 Flexible tube for transferring chlorine-containing hot water

Publications (2)

Publication Number Publication Date
JPH05177733A JPH05177733A (en) 1993-07-20
JP3452370B2 true JP3452370B2 (en) 2003-09-29

Family

ID=18468182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36016391A Expired - Fee Related JP3452370B2 (en) 1991-12-27 1991-12-27 Flexible tube for transferring chlorine-containing hot water

Country Status (1)

Country Link
JP (1) JP3452370B2 (en)

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US10571053B2 (en) 2012-12-28 2020-02-25 Agc Chemicals Americas, Inc. Layered tube for a hose assembly
CA3008657C (en) 2015-12-15 2023-12-19 Agc Chemicals Americas Inc. A layered tube and layer for use in same

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