JP6836029B2 - Natural stone plate material and its processing method - Google Patents
Natural stone plate material and its processing method Download PDFInfo
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- JP6836029B2 JP6836029B2 JP2016099287A JP2016099287A JP6836029B2 JP 6836029 B2 JP6836029 B2 JP 6836029B2 JP 2016099287 A JP2016099287 A JP 2016099287A JP 2016099287 A JP2016099287 A JP 2016099287A JP 6836029 B2 JP6836029 B2 JP 6836029B2
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- 239000000463 material Substances 0.000 title claims description 126
- 239000004575 stone Substances 0.000 title claims description 107
- 238000003672 processing method Methods 0.000 title description 8
- 229920001046 Nanocellulose Polymers 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000010438 granite Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000005470 impregnation Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000004579 marble Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000009863 impact test Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Description
本発明は、天然大理石板、天然御影石板、天然花崗岩板等により構成された天然石板材及びその加工方法に関する。 The present invention relates to a natural stone plate material composed of a natural marble plate, a natural granite plate, a natural granite plate, etc., and a processing method thereof.
近年、ホテルの浴室の壁床、エレベータの壁床、オフィスビルの壁床等に天然石板材が使用されている。天然石板材は天然大理石板材、天然御影石板材、又は、天然花崗岩板材である。特開平５−０２５９０５号公報、特開平５−２７２２４４号公報及び特開平６−１８３８６１号には、天然石材の表面に浸透性シーラー、シーリング剤、含浸材等を含浸させる技術が開示されている。 In recent years, natural stone board materials have been used for the wall floors of hotel bathrooms, elevator wall floors, office building wall floors, and the like. The natural stone plate material is a natural marble plate material, a natural granite plate material, or a natural granite plate material. Japanese Unexamined Patent Publication No. 5-025905, Japanese Unexamined Patent Publication No. 5-272244, and JP.
近年、材料強化材としてナノセルロース（セルロースナノファイバー）を使用する技術が開発されている。特公表２０１３−５０８５６８号公報には、乾燥紙の強度を増加させるためにナノセルロースを用いる技術が開示されている。特公表２０１４−５１０８４３号公報及び特公表２０１６−５０１９３７号公報には、ナノフィブリルセルロースを含む複合材料の製造方法が開示されている。 In recent years, a technique for using nanocellulose (cellulose nanofiber) as a material reinforcing material has been developed. Japanese Patent Publication No. 2013-508568 discloses a technique for using nanocellulose to increase the strength of dry paper. Japanese Patent Publication No. 2014-510843 and Japanese Patent Publication No. 2016-501937 disclose a method for producing a composite material containing nanofibril cellulose.
天然石板材は、美観及び硬さに優れているが、割れ易い欠点がある。そこで本願の発明者は、天然石板材の強度及び靭性を高める技術を鋭意検討した。 Natural stone board is excellent in appearance and hardness, but has a drawback of being easily cracked. Therefore, the inventor of the present application has diligently studied a technique for enhancing the strength and toughness of a natural stone plate material.
本発明の目的は、天然石板材の強度及び靭性を高める技術を提供することにある。 An object of the present invention is to provide a technique for increasing the strength and toughness of a natural stone plate material.
本発明に係る天然石板材は、研磨面と該研磨面の反対側の裏面とを有する多孔質の天然石材であって、前記裏面の多孔質の微細孔にナノセルロースが充填され樹脂を含まない含浸層が形成されている。The natural stone plate material according to the present invention is a porous natural stone material having a polished surface and a back surface on the opposite side of the polished surface, and the porous micropores on the back surface are filled with nanocellulose and impregnated without resin. Layers are formed.
更に、本発明に係る天然石板材の加工方法は、ナノセルロースを、水またはその他の液体と調整することにより樹脂を含まないナノセルロース溶液を調製するナノセルロース溶液調製ステップと、前記ナノセルロース溶液を、多孔質の天然石板材の裏面に含浸させて、該天然石材の微細孔の内部に充填する含浸ステップと、充填された前記ナノセルロース溶液を乾燥させることにより、前記天然石材の微細孔内にナノセルロースを残留させて、該天然石材の内部に裏面に沿ってナノセルロースが充填された含浸層を形成するステップと、を含む。Further, the method for processing a natural stone plate material according to the present invention comprises a nanocellulose solution preparation step of preparing a resin-free nanocellulose solution by adjusting nanocellulose with water or other liquid, and the nanocellulose solution. By impregnating the back surface of the porous natural stone plate material with the impregnation step of filling the inside of the micropores of the natural stone material and drying the filled nanocellulose solution, nanocellulose is formed in the micropores of the natural stone material. Includes the step of forming an impregnated layer filled with nanocellulose along the back surface inside the natural stone material.
更に、上記天然石板材の加工方法では、前記含浸ステップは、前記天然石板材の一部を前記ナノセルロース溶液に漬ける工程を含んでもよい。Further, in the method for processing the natural stone plate material, the impregnation step may include a step of immersing a part of the natural stone plate material in the nanocellulose solution.
更に、上記天然石板材の加工方法では、前記含浸ステップは、前記天然石板材の一部に前記ナノセルロース溶液を塗布する工程を含んでもよい。Further, in the method for processing the natural stone plate material, the impregnation step may include a step of applying the nanocellulose solution to a part of the natural stone plate material.
更に、上記天然石板材の加工方法では、前記天然石板材は天然大理石板材、天然御影石板材、又は、天然花崗岩板材であってよい。Further, in the method for processing the natural stone plate material, the natural stone plate material may be a natural marble plate material, a natural granite plate material, or a natural granite plate material.
更に、上記天然石板材の加工方法では、前記天然石板材の厚さは５．０〜８．０ｍｍであってよい。Further, in the method for processing the natural stone plate material, the thickness of the natural stone plate material may be 5.0 to 8.0 mm.
更に、本発明に係るメタルコルゲート付天然石板材は、上記天然石板材において、更に、前記ナノセルロースが充填された含浸層の上に、接着剤を介して、メタルコルゲートが取り付けられたメタルコルゲート付天然石板材である。Further, the natural stone plate material with metal corrugation according to the present invention is the natural stone plate material with metal corrugation in which the metal corrugated material is further attached to the impregnated layer filled with the nanocellulose via an adhesive. Is.
更に、上記メタルコルゲート付天然石板材では、前記天然石板材は、天然大理石板材、天然御影石板材、又は、天然花崗岩板材であってよい。Further, in the natural stone plate material with a metal corrugated material, the natural stone plate material may be a natural marble plate material, a natural granite plate material, or a natural granite plate material.
更に、上記メタルコルゲート付天然石板材では、前記天然石板材の厚さは、５．０〜８．０ｍｍであり、前記メタルコルゲートの厚さは、５．０〜６．０ｍｍであり、前記接着剤の厚さは、０．３〜０．５ｍｍであってよい。Further, in the natural stone plate material with metal corrugated material, the thickness of the natural stone plate material is 5.0 to 8.0 mm, the thickness of the metal corrugated material is 5.0 to 6.0 mm, and the thickness of the adhesive is The thickness may be 0.3 to 0.5 mm.
更に、本発明に係る補強シート付天然石板材は、上記天然石板材において、更に、前記ナノセルロースが充填された含浸層の上に、接着剤を介して、補強シートが取り付けられた補強シート付天然石板材である。Further, the natural stone plate material with a reinforcing sheet according to the present invention is the natural stone plate material with a reinforcing sheet in which the reinforcing sheet is further attached to the impregnated layer filled with the nanocellulose via an adhesive. Is.
更に、本発明に係る補強シート付天然石板材では、前記天然石板材は、天然大理石板材、天然御影石板材又は天然花崗岩板材であってよい。Further, in the natural stone plate material with a reinforcing sheet according to the present invention, the natural stone plate material may be a natural marble plate material, a natural granite plate material or a natural granite plate material.
本発明の実施形態によると、前記補強シート付天然石板材において、
前記シートはナノセルロースの充填によって強化されている、としてよい。
According to the embodiment of the present invention, in the natural stone plate material with a reinforcing sheet,
The sheet may be reinforced by filling with nanocellulose.
本発明によれば、天然石板材の強度及び靭性を高める技術を提供することができる。 According to the present invention, it is possible to provide a technique for increasing the strength and toughness of a natural stone plate material.
以下、本発明に係る天然石板材及びその加工方法の実施形態に関して、添付の図面を参照しながら詳細に説明する。なお、この実施形態は、例示であって、本発明を何等限定するものではないことを承知されたい。 Hereinafter, embodiments of the natural stone plate material and the processing method thereof according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that this embodiment is an example and does not limit the present invention in any way.
図１Ａは、本実施形態による天然石板材１１の構造を示す。天然石板材１１は、天然大理石板材、天然御影石板材、又は、天然花崗岩板材であってよい。天然石板材１１は、厚さ２０〜４０ｍｍの通常の天然石板材であってよいが、厚さ５．０〜８．０ｍｍの極薄天然石板材であってもよい。天然石板材１１は研磨面１１Ａと裏面１１Ｂを有する。裏面１１Ｂにはナノセルロースの充填層又は含浸層１１Ｃが形成されている。天然石板材１１の裏面１１Ｂにナノセルロースの含浸層１１Ｃを形成する方法は、図２を参照して説明する。本実施形態では、ナノセルロースの含浸層１１Ｃを設けることによって、天然石板材１１の強度が増加される。
FIG. 1A shows the structure of the natural
図１Ｂは、本実施形態によるメタルコルゲート付天然石板材１０の構造を示す。メタルコルゲート付天然石板材１０は天然石板材１１とメタルコルゲート１３を有し、両者の間には接着剤１２が塗布されている。図１を参照して説明したように、天然石板材１１の裏面にはナノセルロースの含浸層１１Ｃが形成されている。メタルコルゲート１３は金属薄板をコルゲート状に加工したものである。メタルコルゲート１３の厚さは５．０〜６．０ｍｍ、接着剤１２の厚さは０．３〜０．５ｍｍであってよい。
FIG. 1B shows the structure of the natural
図１Ｃは、本実施形態による補強シート付天然石板材２０の構造を示す。補強シート付天然石板材２０は天然石板材１１と補強シート１４を有し、両者の間には接着剤１２が塗布されている。図１を参照して説明したように、天然石板材１１の裏面にはナノセルロースの含浸層１１Ｃが形成されている。補強シート１４は多孔質材からなる薄板であればどのようなものであってもよく、例えば、紙、布、不織布、プラスチック板、ベニヤ板、等であってよい。シート１４の厚さはシートの材質により異なり、０．５〜５．０ｍｍであってよい。本実施形態では、シート１４はナノセルロース液を含浸させることによって強化されてよい。
FIG. 1C shows the structure of the natural
図２は、本発明による天然石板材の加工方法の例を示す。本実施形態による加工方法によると、先ず、ステップＳ１０１にて、ナノセルロース溶液を調製する。ナノセルロースは、市販のものを使用してよい。本願の発明者は、中越パルプ工業株式会社から入手したナノセルロースを用いた。同社は、ナノセルロース炭酸カルシウム複合体を製造販売している。従って、ナノセルロース炭酸カルシウム複合体を用いてもよい。 FIG. 2 shows an example of a method for processing a natural stone plate material according to the present invention. According to the processing method according to the present embodiment, first, a nanocellulose solution is prepared in step S101. Commercially available nanocellulose may be used. The inventor of the present application used nanocellulose obtained from Chuetsu Pulp & Paper Co., Ltd. The company manufactures and sells nanocellulose calcium carbonate complexes. Therefore, a nanocellulose calcium carbonate complex may be used.
ナノセルロースを水又は溶媒（エタノール等）に溶かすことによりナノセルロース溶液が生成される。 A nanocellulose solution is produced by dissolving nanocellulose in water or a solvent (ethanol, etc.).
次に、ステップＳ１０２にて、ナノセルロース溶液を天然石板材に含浸させる。本願の発明者は、含浸工程において、２つの方法を用いた。第１の方法では、天然石板材１１の裏面１１Ｂにナノセルロース溶液を塗布した。塗布はローラ又は刷毛を用いてよい。第２の方法では、天然石板材の裏面１１Ｂをナノセルロース溶液に漬けた。天然石板材の表面のうち研磨面を除く全ての面にナノセルロース溶液を塗布してもよく、漬けてもよい。天然石板材は多孔質であるため、多数の微細孔及び微細溝を有する。従って、ナノセルロース溶液は、毛管現象によって天然石板材の微細孔及び微細溝の内部を充填する。この含浸工程には、予め設定された含浸時間を要する。含浸時間が経過したら、次の工程に進む。
Next, in step S102, the natural stone plate material is impregnated with the nanocellulose solution. The inventor of the present application used two methods in the impregnation step. In the first method, the nanocellulose solution was applied to the
最後にステップＳ１０３にて乾燥する。乾燥工程では、自然乾燥を用いてもよいが、乾燥機を用いてもよい。天然石板材に含浸したナノセルロース溶液を乾燥させることによって、天然石板材の微細孔内に、ナノセルロースが残留する。こうして、天然石板材の微細孔内にナノセルロースが充填される。図１Ａに示したように、天然石板材の裏面にナノセルロースが充填された充填層又は含浸層１１Ｃが形成される。それによって、天然石板材は、強度及び靭性が改善され、全体として脆性が減少する。
Finally, it is dried in step S103. In the drying step, natural drying may be used, or a dryer may be used. By drying the nanocellulose solution impregnated in the natural stone plate material, nanocellulose remains in the micropores of the natural stone plate material. In this way, nanocellulose is filled in the micropores of the natural stone plate material. As shown in FIG. 1A, a packed layer or an impregnated
以上、本発明による天然石板材の加工方法の例を説明したが、この加工方法は図１Ｂのシート１４の加工にも適用できる。
The example of the processing method of the natural stone plate material according to the present invention has been described above, but this processing method can also be applied to the processing of the
本願の発明者は、ナノセルロースによって強化された天然石板材について曲げ試験と衝撃試験を実施した。試験は「ＪＩＳＡ１４０８：２０１１建築用ボード類の曲げ及び衝撃試験方法（追補１）５．試験方法」の「５．１曲げ試験」及び「５．２衝撃試験」に従って実行した。 The inventor of the present application carried out a bending test and an impact test on a natural stone plate material reinforced with nanocellulose. The test was carried out in accordance with "5.1 Bending test" and "5.2 Impact test" of "JIS A1408: 2011 Building Board Bending and Impact Test Method (Supplement 1) 5. Test Method".
試験の結果、本発明による天然石板材、即ち、ナノセルロース強化天然石板材は、従来の天然石板材と比較して、強度が改善していることが判った。 As a result of the test, it was found that the natural stone plate material according to the present invention, that is, the nanocellulose-reinforced natural stone plate material has improved strength as compared with the conventional natural stone plate material.
以上、本実施形態に係る天然石板材及びその加工方法について説明したが、これらは例示であって、本発明の範囲を制限するものではない。当業者が、本実施形態に対して容易になしえる追加・削除・変更・改良等は、本発明の範囲内である。本発明の技術的範囲は、添付の特許請求の記載によって定められる。 The natural stone plate material and the processing method thereof according to the present embodiment have been described above, but these are examples and do not limit the scope of the present invention. Additions, deletions, changes, improvements, etc. that can be easily made by those skilled in the art are within the scope of the present invention. The technical scope of the present invention is defined by the description of the accompanying patent claims.
１０…メタルコルゲート付天然石板材、１１…天然石板材、１１Ａ…研磨面、１１Ｂ…裏面、１１Ｃ…ナノセルロース充填層又は含浸層、１２…接着剤、１３…メタルコルゲート、１４…シート、２０…補強シート付天然石板材 10 ... Natural stone board with metal corrugated, 11 ... Natural stone board, 11A ... Polished surface, 11B ... Back side, 11C ... Nanocellulose filled or impregnated layer, 12 ... Adhesive, 13 ... Metal corrugated, 14 ... Sheet, 20 ... Reinforcing sheet Natural stone board with
Claims (11)
前記裏面の多孔質の微細孔にナノセルロースが充填され樹脂を含まない含浸層が形成されている、天然石板材。 In a porous natural stone having a polished surface and a back surface opposite the polished surface,
A natural stone plate material in which nanocellulose is filled in the porous micropores on the back surface to form an impregnated layer containing no resin.
前記ナノセルロース溶液を、多孔質の天然石板材の裏面に含浸させて、該天然石材の微細孔の内部に充填する含浸ステップと、
充填された前記ナノセルロース溶液を乾燥させることにより、前記天然石材の微細孔内にナノセルロースを残留させて、該天然石材の内部に裏面に沿ってナノセルロースが充填された含浸層を形成するステップと、を含む天然石板材の加工方法。 A nanocellulose solution preparation step that prepares a resin-free nanocellulose solution by adjusting the nanocellulose with water or other liquid.
The nano cellulose solution by impregnating the back surface of the porous natural stone plate, and the impregnation step of filling the interior of the fine pores of the natural stone,
Ri by the drying of filled the nano cellulose solution, thereby leaving a nanocellulose within micropores of the natural stone, forming an impregnation layer nanocellulose along the rear surface in the interior of the natural stone material is filled Steps and how to process natural stone plates, including.
前記含浸ステップは、前記天然石板材の一部を前記ナノセルロース溶液に漬ける工程を含む、天然石板材の加工方法。 In the method for processing a natural stone plate material according to claim 2,
The impregnation step is a method for processing a natural stone plate material, which comprises a step of immersing a part of the natural stone plate material in the nanocellulose solution.
前記含浸ステップは、前記天然石板材の一部に前記ナノセルロース溶液を塗布する工程を含む、天然石板材の加工方法。 In the method for processing a natural stone plate material according to claim 2,
The impregnation step is a method for processing a natural stone plate material, which comprises a step of applying the nanocellulose solution to a part of the natural stone plate material.
前記天然石板材は天然大理石板材、天然御影石板材、又は、天然花崗岩板材である、天然石板材の加工方法。 In the method for processing a natural stone plate material according to any one of claims 2 to 4.
A method for processing a natural stone plate material, wherein the natural stone plate material is a natural marble plate material, a natural granite plate material, or a natural granite plate material.
前記天然石板材の厚さは５．０〜８．０ｍｍである、天然石板材の加工方法。 In the method for processing a natural stone plate material according to any one of claims 2 to 5,
A method for processing a natural stone plate material, wherein the thickness of the natural stone plate material is 5.0 to 8.0 mm.
前記ナノセルロースが充填された含浸層の上に、接着剤を介して、メタルコルゲートが取り付けられている、メタルコルゲート付天然石板材。 In the natural stone plate material according to claim 1, further
A natural stone plate material with a metal corrugate , in which a metal corrugate is attached to the impregnated layer filled with nanocellulose via an adhesive.
前記天然石板材は、天然大理石板材、天然御影石板材、又は、天然花崗岩板材である、メタルコルゲート付天然石板材。 In the natural stone plate material with metal corrugated according to claim 7.
The natural stone plate material is a natural marble plate material, a natural granite plate material, or a natural granite plate material with a metal corrugation .
前記天然石板材の厚さは、５．０〜８．０ｍｍであり、
前記メタルコルゲートの厚さは、５．０〜６．０ｍｍであり、
前記接着剤の厚さは、０．３〜０．５ｍｍである、メタルコルゲート付天然石板材。 In the natural stone plate material with metal corrugated according to claim 7.
The thickness of the natural stone plate material is 5.0 to 8.0 mm.
The thickness of the metal corrugated is 5.0 to 6.0 mm.
A natural stone plate material with a metal corrugate having a thickness of the adhesive of 0.3 to 0.5 mm.
前記ナノセルロースが充填された含浸層の上に、接着剤を介して、補強シートが取り付けられている、補強シート付天然石板材。 In the natural stone plate material according to claim 1, further
A natural stone plate material with a reinforcing sheet , in which a reinforcing sheet is attached to the impregnated layer filled with nanocellulose via an adhesive.
前記天然石板材は、天然大理石板材、天然御影石板材又は天然花崗岩板材である、補強シート付天然石板材。 In the natural stone plate material with a reinforcing sheet according to claim 10.
The natural stone plate material is a natural stone plate material with a reinforcing sheet , which is a natural marble plate material, a natural granite plate material, or a natural granite plate material.
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| JPS6461370A (en) * | 1987-08-28 | 1989-03-08 | Ibiden Co Ltd | Natural marble containing addition polymerized polymer |
| JP2952293B2 (en) * | 1989-11-30 | 1999-09-20 | 株式会社オフデック | Wall material panel and method of mounting wall material panel to wall surface |
| JPH03247851A (en) * | 1990-02-23 | 1991-11-06 | Matsushita Electric Works Ltd | Stone panel |
| JPH05272244A (en) * | 1992-03-25 | 1993-10-19 | Tadao Isshiki | Stone and treating method thereof and execution method using the stone |
| SE9201963L (en) * | 1992-06-24 | 1993-11-29 | Techstone Kinna Ab | Disc-shaped stone product, process for its preparation and means thereof |
| JPH06229099A (en) * | 1992-12-09 | 1994-08-16 | N S P:Kk | Natural stone panel |
| JP2009155772A (en) * | 2007-12-27 | 2009-07-16 | Mitsubishi Chemicals Corp | Method for manufacturing finely divided cellulose fiber |
| ES2745638T3 (en) * | 2009-03-30 | 2020-03-03 | Fiberlean Tech Ltd | Procedure for the production of nanofibrillary cellulose suspensions |
| HUE035151T2 (en) * | 2009-03-30 | 2018-05-02 | Fiberlean Tech Ltd | Process for the production of nano-fibrillar cellulose gels |
| JP2011038193A (en) * | 2009-08-07 | 2011-02-24 | Konica Minolta Holdings Inc | Cellulose fiber and fiber composite material |
| FI123184B (en) * | 2011-04-20 | 2012-12-14 | Upm Kymmene Corp | A method and apparatus for adding an additive to a cementitious composition |
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