JP2007111305A - Bath tub - Google Patents

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JP2007111305A
JP2007111305A JP2005306885A JP2005306885A JP2007111305A JP 2007111305 A JP2007111305 A JP 2007111305A JP 2005306885 A JP2005306885 A JP 2005306885A JP 2005306885 A JP2005306885 A JP 2005306885A JP 2007111305 A JP2007111305 A JP 2007111305A
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bathtub
base material
microbeads
inner layer
fiber
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Keiichiro Hino
恵一郎 日野
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WAKO SEISAKUSHO KK
Wako Seisakusho KK
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WAKO SEISAKUSHO KK
Wako Seisakusho KK
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  • Bathtubs, Showers, And Their Attachments (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bath tub which can provide stable heat insulating effect with the micro beads evenly dispersed, or which can provide a different local heat characteristic from other areas with micro beads unevenly distributed, if necessary. <P>SOLUTION: The bath tub comprises a bath tub main body 1 made of fiber-reinforced plastic and an inner coat 2 covering the whole inner surface of the bath tub main body 1. The bath tub main body 1 has a base material 3 made of heat-hardening resin, microbeads 4 to be mixed in the base material 3 and a fiber-reinforced material 5 as the components, and to form a tub, these components are sprayed over the inner coat 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、繊維強化プラスチック材（以下、ＦＲＰという）で成形された浴槽に関する。   The present invention relates to a bathtub formed of a fiber reinforced plastic material (hereinafter referred to as FRP).

一般的なこの種の浴槽は、内層体（ゲルコート層）と、内層体の外面全体を覆うＦＲＰ製の浴槽本体とで構成されている（特許文献１）。内層体は、不飽和ポリエステルやアクリルなどで成形される。着色されたアクリル層の外面に透明なアクリル層を積層して内層体を形成することもある。   This kind of general bathtub is comprised by the inner layer body (gel coat layer) and the bathtub main body made from FRP which covers the whole outer surface of an inner layer body (patent document 1). The inner layer body is formed of unsaturated polyester or acrylic. A transparent acrylic layer may be laminated on the outer surface of the colored acrylic layer to form an inner layer body.

本発明では、浴槽の保温性を向上するために、浴槽を構成する樹脂中にマイクロビーズを混入しているが、これ自体は本出願人の提案にかかる特許文献２に公知である。そこでは、雄型の表面に内層体（ゲルコート層）を形成したのち、内面にガラスマットが貼り付けてある雌型を雄型に接合し、両型の間に溶融プラスチックを注入して浴槽を成形する。得られた浴槽は、内層体と、中層体と、ＦＲＰ製の外層体との三者で構成されている。マイクロビーズは、注型法によって形成される中層体に混入されている。   In the present invention, in order to improve the heat retention of the bathtub, microbeads are mixed in the resin constituting the bathtub. This is known per se in Patent Document 2 relating to the proposal of the present applicant. There, after forming an inner layer (gel coat layer) on the surface of the male mold, a female mold with a glass mat attached to the inner surface is joined to the male mold, molten plastic is injected between both molds, and a bathtub is formed. Mold. The obtained bathtub is composed of an inner layer body, an intermediate layer body, and an FRP outer layer body. Microbeads are mixed in an intermediate layer formed by a casting method.

特開平１１−１０５２１９号公報（段落番号００２６、図１）JP-A-11-105219 (paragraph number 0026, FIG. 1) 特開２００２−２０５３４２号公報（段落番号００１６、図１）JP 2002-205342 A (paragraph number 0016, FIG. 1)

特許文献２の浴槽においては、マイクロビーズを混入する分だけ中層体の熱伝導率を小さくして浴槽の保温特性を向上できる。しかし、従来の２層構造の浴槽に比べて、中層体を設ける分だけ浴槽の製造コストが高く付く。マイクロビーズが混入された中層体は注型法によって形成するので、溶融プラスチックを成形型内に注入した後は、マイクロビーズの分散状態を確認することも制御することもできず、マイクロビーズの成形型内における分散状態は、注型前の分散状態に依存するしかない。そのため、マイクロビーズが型内で均一に分散しているかどうかは判らない。逆にマイクロビーズを意図的に偏在させることもできない。   In the bathtub of Patent Document 2, the thermal conductivity of the intermediate layer can be reduced by the amount of mixing microbeads, and the heat retaining characteristics of the bathtub can be improved. However, compared to a conventional two-layered bathtub, the manufacturing cost of the bathtub is increased by the amount of providing the middle layer body. Since the intermediate layer mixed with microbeads is formed by a casting method, after the molten plastic is injected into the mold, the dispersion state of the microbeads cannot be confirmed or controlled, and the microbeads are molded. The dispersion state in the mold can only depend on the dispersion state before casting. Therefore, it is not known whether the microbeads are uniformly dispersed in the mold. Conversely, microbeads cannot be intentionally unevenly distributed.

本発明の目的は、マイクロビーズを均一に分散させて安定した保温効果を発揮でき、あるいはマイクロビーズを必要に応じて偏在させることにより、局部的に他と異なる熱特性を発揮できるようにした浴槽を提供することにある。   An object of the present invention is to provide a bath that can uniformly disperse microbeads to exhibit a stable heat retaining effect, or can locally exhibit thermal characteristics different from others by unevenly distributing microbeads as necessary. Is to provide.

本発明は、繊維強化プラスチックで形成される浴槽本体１と、浴槽本体１の内面全体を覆う内層体２とを含む浴槽であって、浴槽本体１が、熱硬化性樹脂からなる母材３と、マイクロビーズ４、および繊維質強化材５とを含んで構成されており、浴槽本体１が、塗装ガンによる吹き付け法で形成されている。   The present invention is a bathtub including a bathtub main body 1 formed of fiber-reinforced plastic and an inner layer body 2 that covers the entire inner surface of the bathtub main body 1, wherein the bathtub main body 1 includes a base material 3 made of a thermosetting resin, The microbead 4 and the fibrous reinforcing material 5 are included, and the bathtub body 1 is formed by a spraying method using a paint gun.

また本発明は、繊維強化プラスチックで形成される浴槽本体１と、浴槽本体１の内面全体を覆う内層体２とを含む浴槽であって、浴槽本体１が、熱硬化性樹脂からなる母材３と、母材３に混入されるマイクロビーズ４と、内層体２の外面に配置される繊維質強化材５とを含んで構成されており、浴槽本体１が、ローラによるハンドレイアップ法で形成されている。   Moreover, this invention is a bathtub containing the bathtub main body 1 formed with a fiber reinforced plastic, and the inner-layer body 2 which covers the whole inner surface of the bathtub main body 1, Comprising: The bathtub main body 1 is the base material 3 which consists of thermosetting resins. And the microbeads 4 mixed in the base material 3 and the fibrous reinforcing material 5 disposed on the outer surface of the inner layer body 2, and the bathtub body 1 is formed by a hand lay-up method using rollers. Has been.

母材３に対するマイクロビーズ４の混合比率は、５〜２０重量％とし、母材３に対する繊維質強化材５の混合比率は、２０〜４０重量％とする。   The mixing ratio of the microbeads 4 to the base material 3 is 5 to 20% by weight, and the mixing ratio of the fiber reinforcement 5 to the base material 3 is 20 to 40% by weight.

母材３に対するマイクロビーズ４の混合比率が５重量％未満であると、良好な保温特性が得られなくなる。母材３に対するマイクロビーズ４の混合比率が２０重量％を越えると、母材３とマイクロビーズ４との混合物の粘度が増加し、母材３とマイクロビーズ４と繊維質強化材５との三者を、互いに絡みあった状態で均等に分散させることができなくなる。母材３に対する繊維質強化材５の混合比率が２０重量％未満であると、母材３の樹脂量が多過ぎて生産時に樹脂ダレが発生したり、浴槽の強度が低くなる。母材３に対する繊維質強化材５の混合比率が４０重量％を越えると、繊維質強化材５に対し母材３とマイクロビーズ４が十分に含浸せず、母材３とマイクロビーズ４と繊維質強化材５との三者を、互いに絡みあった状態で均等に分散させることができなくなる。こうした理由から、マイクロビーズ４の母材３に対する混合比率は５〜２０重量％とし、繊維質強化材５の母材３に対する混合比率は２０〜４０重量％とする。   When the mixing ratio of the microbeads 4 to the base material 3 is less than 5% by weight, good heat retention characteristics cannot be obtained. When the mixing ratio of the microbeads 4 to the base material 3 exceeds 20% by weight, the viscosity of the mixture of the base material 3 and the microbeads 4 increases, and the base material 3, the microbeads 4, and the fiber reinforcement 5 Cannot be evenly distributed in a state where they are entangled with each other. If the mixing ratio of the fibrous reinforcing material 5 to the base material 3 is less than 20% by weight, the amount of the resin of the base material 3 is too large, causing resin sag during production, and the strength of the bathtub becomes low. If the mixing ratio of the fiber reinforcement 5 to the base material 3 exceeds 40% by weight, the base material 3 and the microbeads 4 are not sufficiently impregnated into the fiber reinforcement 5, and the base material 3, the microbeads 4 and the fibers The three members with the quality reinforcing material 5 cannot be evenly dispersed in a state where they are entangled with each other. For these reasons, the mixing ratio of the microbeads 4 to the base material 3 is 5 to 20% by weight, and the mixing ratio of the fiber reinforcement 5 to the base material 3 is 20 to 40% by weight.

本発明においては、浴槽本体１と、内層体２とを含むＦＲＰ製浴槽において、熱硬化性樹脂からなる母材３と、マイクロビーズ４と、繊維質強化材５などを構成材にして、これらを例えば塗装ガンで内層体２に吹き付けて浴槽本体１を形成する。このように、母材３とマイクロビーズ４と繊維質強化材５の三者を内層体２に吹き付けて浴槽本体１を形成すると、内層体２の表面において母材３と、マイクロビーズ４と、繊維質強化材５との三者を、互いに絡み合った状態で均等に分散させることができ、しかも繊維質強化材５によってマイクロビーズ４の移動が規制されるので、浴槽本体１の内部にマイクロビーズ４を均一に分散させて、安定した保温効果を発揮できる浴槽が得られる。必要に応じて、例えば特定部分の肉厚が大きくなるように吹き付け量を増加して、マイクロビーズ４が他より多く含まれる部分を形成することができるので、局部的に他と異なる熱特性を発揮できる浴槽を形成することもできる。   In the present invention, in the FRP bathtub including the bathtub body 1 and the inner layer body 2, the base material 3 made of thermosetting resin, the microbeads 4, the fiber reinforcement 5 and the like are used as the constituent materials. The bathtub body 1 is formed by spraying the inner layer body 2 with a paint gun, for example. In this manner, when the bathtub body 1 is formed by spraying the base material 3, the microbeads 4, and the fiber reinforcement 5 to the inner layer body 2, the base material 3, the microbeads 4, The three of the fiber reinforcing material 5 can be evenly dispersed while being intertwined with each other, and the movement of the microbeads 4 is regulated by the fiber reinforcing material 5. The bathtub which can disperse | distribute 4 uniformly and can exhibit the stable heat retention effect is obtained. If necessary, for example, the amount of spraying can be increased so that the thickness of the specific portion is increased to form a portion where the microbeads 4 are contained more than others, so locally different thermal characteristics can be obtained. A bathtub that can be demonstrated can also be formed.

ローラによるハンドレイアップ法で浴槽本体１を形成する場合には、母材３が例えば繊維質強化材５に染み込むとき、マイクロビーズ４も繊維質強化材５に染み込むので、浴槽本体１の内部においては、母材３と、マイクロビーズ４とが、繊維質強化材５の繊維の隙間に捕捉された状態で均等に分散する。したがって上記と同様に浴槽本体１の内部にマイクロビーズ４を均一に分散させて、安定した保温効果を発揮できる浴槽が得られる。必要に応じて、マイクロビーズ４が他より多く含まれる部分を形成することもできる。   When the bathtub body 1 is formed by the hand lay-up method using a roller, when the base material 3 soaks into the fiber reinforcing material 5, for example, the microbead 4 also soaks into the fiber reinforcing material 5. The base material 3 and the microbeads 4 are evenly dispersed in a state where the base material 3 and the microbeads 4 are captured in the gaps between the fibers of the fibrous reinforcing material 5. Therefore, similarly to the above, a microbead 4 can be uniformly dispersed inside the bathtub body 1 to obtain a bathtub that can exhibit a stable heat retaining effect. If necessary, a portion containing more microbeads 4 than the others can be formed.

図１および図２は本発明に係る浴槽の実施例を示す。図１において浴槽は、繊維強化プラスチック製の浴槽本体１と、浴槽本体１の内面全体を覆う内層体（ゲルコート層）２とで構成されている。   1 and 2 show an embodiment of a bathtub according to the present invention. In FIG. 1, the bathtub is composed of a fiber reinforced plastic bathtub body 1 and an inner layer body (gel coat layer) 2 that covers the entire inner surface of the bathtub body 1.

浴槽本体１は、不飽和ポリエステル（熱硬化性樹脂）からなる母材３に、マイクロビーズ４およびガラス繊維（繊維質強化材）５などを混合して、図２に示すように塗装ガンによる吹き付け法で形成する。   The bathtub body 1 is mixed with a base material 3 made of unsaturated polyester (thermosetting resin) and microbeads 4 and glass fibers (fibrous reinforcing material) 5 and sprayed with a coating gun as shown in FIG. Form by law.

具体的には、母型８の外面に透明アクリル樹脂と、着色されたアクリル樹脂とを、塗装ガンで順に吹き付けて第１内層体２ａと第２内層体２ｂとからなる内層体２を形成する。次に、硬化した内層体２の外表面に、ＦＲＰを塗装ガンで吹き付けて浴槽本体１を形成する。塗装ガンには、マイクロビーズ４が混入された母材３と、重合促進剤（硬化剤）などが供給され、両者の噴出流によって、短く切断されたガラス繊維５が同時に吹き付けられる。そのため、内層体２の表面においては、母材３および重合促進剤と、マイクロビーズ４と、ガラス繊維５との三者が絡み合った状態で均等に分散する。   Specifically, the inner layer body 2 composed of the first inner layer body 2a and the second inner layer body 2b is formed by sequentially spraying a transparent acrylic resin and a colored acrylic resin on the outer surface of the matrix 8 with a coating gun. . Next, the bathtub body 1 is formed by spraying FRP with a coating gun on the outer surface of the cured inner layer body 2. The base material 3 in which the microbeads 4 are mixed, the polymerization accelerator (curing agent), and the like are supplied to the coating gun, and the glass fiber 5 that has been cut short is simultaneously sprayed by the flow of both of them. Therefore, on the surface of the inner layer body 2, the base material 3, the polymerization accelerator, the microbead 4, and the glass fiber 5 are uniformly dispersed while being intertwined.

内層体２の表面に付着したマイクロビーズ４は、母材３が硬化するまでの間流動し得るが、ガラス繊維５によって移動が規制される。したがって、マイクロビーズ４は吹き付けられた位置から大きく流動することはなく、均等に分散させることができる。もちろん、必要があれば、特定部分の肉厚が大きくなるように吹き付け量を増加して、マイクロビーズ４が他より多く含まれる部分を形成することができる。例えば、風呂釜との連通管を接続する部分を厚肉にしてマイクロビーズ４を偏在させ、風呂釜の側から浴槽の側へ高温の熱が伝わるのを阻止することができる。   The microbeads 4 attached to the surface of the inner layer body 2 can flow until the base material 3 is cured, but the movement is restricted by the glass fibers 5. Therefore, the microbeads 4 do not flow greatly from the sprayed position and can be evenly dispersed. Of course, if necessary, the amount of spraying can be increased so that the thickness of the specific portion is increased, and a portion containing more microbeads 4 than the other can be formed. For example, the microbead 4 can be unevenly distributed by thickening the portion connecting the communication pipe with the bath, so that high temperature heat can be prevented from being transmitted from the bath to the bathtub.

母材３に混入するマイクロビーズ４は、セラミック、ガラス、熱可塑性プラスチック材などを素材にして形成することができ、その平均的な直径寸法は５０〜１５０μｍとすることが好ましい。また、マイクロビーズ４の母材３に対する混合比率は５〜２０重量％とする。   The microbeads 4 mixed in the base material 3 can be formed using ceramic, glass, thermoplastic material, or the like, and the average diameter is preferably 50 to 150 μm. The mixing ratio of the microbeads 4 to the base material 3 is 5 to 20% by weight.

マイクロビーズ４は、平均的な直径寸法が５０μｍ未満であると、熱伝導率を下げる効果が小さくなり、平均的な直径寸法が１５０μｍを越えると、浴槽強度が低くなり、母材３とマイクロビーズ４とガラス繊維５との三者を互いに絡みあった状態で均等に分散させることができなくなるからである。   When the average diameter dimension is less than 50 μm, the effect of lowering the thermal conductivity becomes small, and when the average diameter dimension exceeds 150 μm, the strength of the bath becomes low, and the base beads 3 and the microbeads 4 It is because it becomes impossible to disperse | distribute equally in the state which entangled three of 4 and the glass fiber 5 mutually.

また、マイクロビーズ４の母材３に対する混合比率が５重量％未満であると、良好な保温特性が得られないなり、その混合比率が２０重量％を越えると、母材３とマイクロビーズ４とガラス繊維５との三者を、互いに絡みあった状態で均等に分散さることができなくなるからである。   Also, if the mixing ratio of the microbeads 4 to the base material 3 is less than 5% by weight, good heat retention characteristics cannot be obtained. If the mixing ratio exceeds 20% by weight, the base material 3 and the microbeads 4 This is because the three with the glass fiber 5 cannot be evenly dispersed while being entangled with each other.

母材３に対するガラス繊維５の混合比率は２０〜４０重量％とする。母材３に対するガラス繊維５の混合比率が２０重量％未満であると、母材３の樹脂量が多過ぎて生産時に樹脂ダレが発生したり、浴槽の強度が低くなる。母材３に対するガラス繊維５の混合比率が４０重量％を越えると、ガラス繊維５に対し母材３とマイクロビーズ４が十分に含浸せず、母材３とマイクロビーズ４とガラス繊維５との三者を、互いに絡みあった状態で均等に分散できなくなるからである。   The mixing ratio of the glass fibers 5 to the base material 3 is 20 to 40% by weight. If the mixing ratio of the glass fibers 5 to the base material 3 is less than 20% by weight, the amount of resin in the base material 3 is too large, and resin sag occurs during production, or the strength of the bathtub decreases. If the mixing ratio of the glass fiber 5 to the base material 3 exceeds 40% by weight, the base material 3 and the microbeads 4 are not sufficiently impregnated into the glass fiber 5, and the base material 3, the microbeads 4 and the glass fiber 5 This is because the three parties cannot be evenly distributed while being entangled with each other.

ＦＲＰの吹き付けが終了したら、浴槽本体１を母型８ごと加熱炉内に移し、炉内の雰囲気温度を５０〜１００℃に維持して浴槽本体１の硬化を促進する。得られた浴槽の内層体２の平均的な全厚寸法は２mm、浴槽本体１の平均的な全厚寸法は５mmであった。この後、浴槽本体１の表面に突出するガラス繊維５などを除去して平滑化し、仕上げ塗装を施して浴槽を完成した。   When the spraying of FRP is completed, the bathtub body 1 is moved into the heating furnace together with the matrix 8 and the atmosphere temperature in the furnace is maintained at 50 to 100 ° C. to promote hardening of the bathtub body 1. The average total thickness of the inner layer body 2 of the obtained bathtub was 2 mm, and the average total thickness of the bathtub main body 1 was 5 mm. Then, the glass fiber 5 etc. which protrude on the surface of the bathtub main body 1 were removed and smoothed, and finish painting was performed to complete the bathtub.

よって得た浴槽の熱伝導率を計測した。比較のために、母材３にマイクロビーズ４を含まないＦＲＰを用いて、上記と同様にして浴槽本体を形成し、その熱伝導率を同様にして計測した。両者の内層体２の熱伝導率は同じで0.２７９Ｗ／ｍＫであった。比較例の浴槽本体の熱伝導率が0.１９４Ｗ／ｍＫであったのに対し、上記の実施例の浴槽本体の熱伝導率は0.１３０Ｗ／ｍＫであった。つまり、従来の浴槽に比べて熱伝導率を３０％強小さくでき、その分だけ浴槽の保温効果を向上することができた。   Therefore, the thermal conductivity of the obtained bathtub was measured. For comparison, a bath body was formed in the same manner as described above using FRP not containing the microbeads 4 in the base material 3, and the thermal conductivity was measured in the same manner. Both the inner layer bodies 2 had the same thermal conductivity of 0.279 W / mK. The thermal conductivity of the bathtub body of the comparative example was 0.194 W / mK, whereas the thermal conductivity of the bathtub body of the above example was 0.130 W / mK. That is, compared with the conventional bathtub, the heat conductivity could be slightly reduced by 30%, and the thermal insulation effect of the bathtub could be improved accordingly.

マイクロビーズ４は、ガラス繊維５と同様に塗装ガンからの噴出流を利用して吹き付けることができる。その場合には、必ずしも母材３中にマイクロビーズ４を混入しておく必要はない。また、マイクロビーズ４の送給量を大小に加減できるようにしておけば、必要な部分により多くのマイクロビーズ４を吹き付けることができる。   The microbeads 4 can be sprayed using the jet flow from the coating gun, similarly to the glass fiber 5. In that case, it is not always necessary to mix the microbeads 4 in the base material 3. Further, if the feeding amount of the microbeads 4 can be increased or decreased, more microbeads 4 can be sprayed to necessary portions.

浴槽本体は、塗装ガンによる吹き付け法で形成する以外に、ローラによるハンドレイアップ法で形成してもよい。その場合には、母型８の外面にプラスチック材を塗装ガンで吹き付けて内層体２を形成する。次に、硬化した内層体２の表面全体に、一定の大きさに切断したガラス繊維マット（繊維質強化材）５を貼り付けたうえで、その表面にＦＲＰをローラで塗布し脱泡する。この作業を数回繰り返して浴槽本体１を形成することができる。   The bathtub body may be formed by a hand lay-up method using a roller in addition to the spraying method using a paint gun. In this case, the inner layer body 2 is formed by spraying a plastic material on the outer surface of the mother die 8 with a paint gun. Next, a glass fiber mat (fibrous reinforcing material) 5 cut to a certain size is attached to the entire surface of the cured inner layer body 2, and FRP is applied to the surface with a roller to defoam. The bathtub main body 1 can be formed by repeating this operation several times.

ＦＲＰの母材３にはマイクロビーズ４が混入されているので、母材３がガラス繊維マット５に染み込むとき、マイクロビーズ４もガラス繊維マット５に染み込む。そのため、浴槽本体１の内部においては、母材３およびマイクロビーズ４とが、ガラス繊維マット５の繊維の隙間に捕捉された状態で均等に分散する。浴槽本体１を形成し終わったら、浴槽本体１を母型８ごと加熱炉内に移して硬化させる。最後に浴槽本体１の表面の凹凸を均して平滑化し、仕上げ塗装を施して浴槽を完成する。   Since the microbeads 4 are mixed in the FRP base material 3, when the base material 3 soaks into the glass fiber mat 5, the microbeads 4 also soak into the glass fiber mat 5. Therefore, in the bathtub body 1, the base material 3 and the microbeads 4 are evenly dispersed in a state of being captured in the fiber gaps of the glass fiber mat 5. When the formation of the bathtub body 1 is completed, the bathtub body 1 is transferred together with the matrix 8 into a heating furnace and cured. Finally, the surface roughness of the bathtub body 1 is smoothed and smoothed, and finish painting is performed to complete the bathtub.

繊維質強化材としては、１〜５mmの厚みがあり、シート全面に一群の穴が通設してあるコアマットや、３次元構造複合マットなどを使用することができる。この種の強化材を使用すると、浴槽本体１の厚みを充分に大きくでき、重量が嵩むのを防止しながら、ＦＲＰ浴槽の重厚感を向上できる。   As the fiber reinforcement, a core mat having a thickness of 1 to 5 mm and having a group of holes through the entire surface of the sheet, a three-dimensional structure composite mat, or the like can be used. When this type of reinforcing material is used, the thickness of the bathtub body 1 can be sufficiently increased, and the profound feeling of the FRP bathtub can be improved while preventing an increase in weight.

内層体２は、真空成形法や加圧成形法で形成してもよく、その場合には母型８を省略することができる。必要に応じて、浴槽本体１の外面全体を外層体で覆って、浴槽の表面全体を平滑化することができる。その場合の外層体は、例えば溶融プラスチックを塗装ガンで吹き付けて形成することができる。   The inner layer body 2 may be formed by a vacuum forming method or a pressure forming method, and in this case, the mother die 8 can be omitted. If necessary, the entire outer surface of the bathtub body 1 can be covered with an outer layer to smooth the entire surface of the bathtub. In this case, the outer layer body can be formed, for example, by spraying molten plastic with a coating gun.

浴槽の断面図である。It is sectional drawing of a bathtub. 浴槽の製造法を示す説明図である。It is explanatory drawing which shows the manufacturing method of a bathtub.

符号の説明Explanation of symbols

１ 浴槽本体
２ 内層体
３ 母材
４ マイクロビーズ
５ ガラス繊維 1 Bathtub body 2 Inner layer 3 Base material 4 Microbead 5 Glass fiber

Claims (3)

繊維強化プラスチックで形成される浴槽本体（１）と、浴槽本体（１）の内面全体を覆う内層体（２）とを含む浴槽であって、
浴槽本体（１）が、熱硬化性樹脂からなる母材（３）と、マイクロビーズ（４）と、繊維質強化材（５）とを含んで構成されており、
浴槽本体（１）が、塗装ガンによる吹き付け法で形成されていることを特徴とする浴槽。 A bathtub body (1) formed of fiber reinforced plastic and an inner layer body (2) covering the entire inner surface of the bathtub body (1),
The bathtub body (1) includes a base material (3) made of a thermosetting resin, a microbead (4), and a fiber reinforcement (5).
The bathtub body (1) is formed by a spraying method using a paint gun. 繊維強化プラスチックで形成される浴槽本体（１）と、浴槽本体（１）の内面全体を覆う内層体（２）とを含む浴槽であって、
浴槽本体（１）が、熱硬化性樹脂からなる母材（３）と、母材（３）に混入されるマイクロビーズ（４）と、内層体（２）の外面に配置される繊維質強化材（５）とを含んで構成されており、
浴槽本体（１）が、ローラによるハンドレイアップ法で形成されていることを特徴とする浴槽。 A bathtub body (1) formed of fiber reinforced plastic and an inner layer body (2) covering the entire inner surface of the bathtub body (1),
Fiber reinforcement in which the bathtub body (1) is arranged on the outer surface of the base material (3) made of thermosetting resin, the microbeads (4) mixed in the base material (3), and the inner layer body (2) Comprising material (5),
The bathtub main body (1) is formed by the hand lay-up method using a roller. 母材（３）に対するマイクロビーズ（４）の混合比率が、５〜２０重量％であり、
母材（３）に対する繊維質強化材（５）の混合比率が、２０〜４０重量％である請求項１または２記載の浴槽。 The mixing ratio of the microbeads (4) to the base material (3) is 5 to 20% by weight,
The bathtub according to claim 1 or 2, wherein a mixing ratio of the fiber reinforcement (5) to the base material (3) is 20 to 40% by weight.
JP2005306885A 2005-10-21 2005-10-21 Bath tub Pending JP2007111305A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009081547A1 (en) * 2007-12-26 2009-07-02 Tokyo Printing Ink Mfg. Co., Ltd. Article having gel coat layer and method for producing the same
DE102022109646A1 (en) 2022-04-21 2023-10-26 Duravit Aktiengesellschaft Sanitary item and method for producing one

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009081547A1 (en) * 2007-12-26 2009-07-02 Tokyo Printing Ink Mfg. Co., Ltd. Article having gel coat layer and method for producing the same
JP5399267B2 (en) * 2007-12-26 2014-01-29 東京インキ株式会社 Article provided with gel coat layer and manufacturing method
DE102022109646A1 (en) 2022-04-21 2023-10-26 Duravit Aktiengesellschaft Sanitary item and method for producing one

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