JP2008202249A - Repairing method for ceramic tile surface - Google Patents
Repairing method for ceramic tile surface Download PDFInfo
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- JP2008202249A JP2008202249A JP2007037039A JP2007037039A JP2008202249A JP 2008202249 A JP2008202249 A JP 2008202249A JP 2007037039 A JP2007037039 A JP 2007037039A JP 2007037039 A JP2007037039 A JP 2007037039A JP 2008202249 A JP2008202249 A JP 2008202249A
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- ceramic tile
- water absorption
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- treatment liquid
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- 239000000919 ceramic Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000004381 surface treatment Methods 0.000 claims abstract description 26
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- 230000003405 preventing effect Effects 0.000 claims description 26
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 238000010422 painting Methods 0.000 claims description 4
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- 238000000576 coating method Methods 0.000 abstract description 11
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- 239000000203 mixture Substances 0.000 description 9
- 239000011358 absorbing material Substances 0.000 description 8
- 238000011109 contamination Methods 0.000 description 7
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- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
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- CZWLNMOIEMTDJY-UHFFFAOYSA-N hexyl(trimethoxy)silane Chemical compound CCCCCC[Si](OC)(OC)OC CZWLNMOIEMTDJY-UHFFFAOYSA-N 0.000 description 5
- 229910000077 silane Inorganic materials 0.000 description 5
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
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- 230000006866 deterioration Effects 0.000 description 3
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- 238000005406 washing Methods 0.000 description 2
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- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
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- 230000003373 anti-fouling effect Effects 0.000 description 1
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- 239000011083 cement mortar Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 239000000306 component Substances 0.000 description 1
- BAAAEEDPKUHLID-UHFFFAOYSA-N decyl(triethoxy)silane Chemical compound CCCCCCCCCC[Si](OCC)(OCC)OCC BAAAEEDPKUHLID-UHFFFAOYSA-N 0.000 description 1
- KQAHMVLQCSALSX-UHFFFAOYSA-N decyl(trimethoxy)silane Chemical compound CCCCCCCCCC[Si](OC)(OC)OC KQAHMVLQCSALSX-UHFFFAOYSA-N 0.000 description 1
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 description 1
- SCPWMSBAGXEGPW-UHFFFAOYSA-N dodecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OC)(OC)OC SCPWMSBAGXEGPW-UHFFFAOYSA-N 0.000 description 1
- SBRXLTRZCJVAPH-UHFFFAOYSA-N ethyl(trimethoxy)silane Chemical compound CC[Si](OC)(OC)OC SBRXLTRZCJVAPH-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
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- MLNCEQPFSFGNIW-UHFFFAOYSA-N heptadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCCC[Si](OC)(OC)OC MLNCEQPFSFGNIW-UHFFFAOYSA-N 0.000 description 1
- VRINOTYEGADLMW-UHFFFAOYSA-N heptyl(trimethoxy)silane Chemical compound CCCCCCC[Si](OC)(OC)OC VRINOTYEGADLMW-UHFFFAOYSA-N 0.000 description 1
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- 230000010534 mechanism of action Effects 0.000 description 1
- RJMRIDVWCWSWFR-UHFFFAOYSA-N methyl(tripropoxy)silane Chemical compound CCCO[Si](C)(OCCC)OCCC RJMRIDVWCWSWFR-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- SLYCYWCVSGPDFR-UHFFFAOYSA-N octadecyltrimethoxysilane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC SLYCYWCVSGPDFR-UHFFFAOYSA-N 0.000 description 1
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
- 229960003493 octyltriethoxysilane Drugs 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- OQTSOKXAWXRIAC-UHFFFAOYSA-N tetrabutan-2-yl silicate Chemical compound CCC(C)O[Si](OC(C)CC)(OC(C)CC)OC(C)CC OQTSOKXAWXRIAC-UHFFFAOYSA-N 0.000 description 1
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 description 1
- ZUEKXCXHTXJYAR-UHFFFAOYSA-N tetrapropan-2-yl silicate Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)OC(C)C ZUEKXCXHTXJYAR-UHFFFAOYSA-N 0.000 description 1
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N tetrapropyl silicate Chemical compound CCCO[Si](OCCC)(OCCC)OCCC ZQZCOBSUOFHDEE-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 description 1
- IJJXVFCJVQEXHZ-UHFFFAOYSA-N triethoxy(heptadecyl)silane Chemical compound CCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC IJJXVFCJVQEXHZ-UHFFFAOYSA-N 0.000 description 1
- SAWDTKLQESXBDN-UHFFFAOYSA-N triethoxy(heptyl)silane Chemical compound CCCCCCC[Si](OCC)(OCC)OCC SAWDTKLQESXBDN-UHFFFAOYSA-N 0.000 description 1
- OYGYKEULCAINCL-UHFFFAOYSA-N triethoxy(hexadecyl)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC OYGYKEULCAINCL-UHFFFAOYSA-N 0.000 description 1
- WUMSTCDLAYQDNO-UHFFFAOYSA-N triethoxy(hexyl)silane Chemical compound CCCCCC[Si](OCC)(OCC)OCC WUMSTCDLAYQDNO-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- FZXOVEZAKDRQJC-UHFFFAOYSA-N triethoxy(nonyl)silane Chemical compound CCCCCCCCC[Si](OCC)(OCC)OCC FZXOVEZAKDRQJC-UHFFFAOYSA-N 0.000 description 1
- FZMJEGJVKFTGMU-UHFFFAOYSA-N triethoxy(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC FZMJEGJVKFTGMU-UHFFFAOYSA-N 0.000 description 1
- ZJLGWINGXOQWDC-UHFFFAOYSA-N triethoxy(pentadecyl)silane Chemical compound CCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC ZJLGWINGXOQWDC-UHFFFAOYSA-N 0.000 description 1
- FHVAUDREWWXPRW-UHFFFAOYSA-N triethoxy(pentyl)silane Chemical compound CCCCC[Si](OCC)(OCC)OCC FHVAUDREWWXPRW-UHFFFAOYSA-N 0.000 description 1
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- SVKDNKCAGJVMMY-UHFFFAOYSA-N triethoxy(tetradecyl)silane Chemical compound CCCCCCCCCCCCCC[Si](OCC)(OCC)OCC SVKDNKCAGJVMMY-UHFFFAOYSA-N 0.000 description 1
- IMAMKGXMSYGEGR-UHFFFAOYSA-N triethoxy(tridecyl)silane Chemical compound CCCCCCCCCCCCC[Si](OCC)(OCC)OCC IMAMKGXMSYGEGR-UHFFFAOYSA-N 0.000 description 1
- JEPXSTGVAHHRBD-UHFFFAOYSA-N trimethoxy(nonyl)silane Chemical compound CCCCCCCCC[Si](OC)(OC)OC JEPXSTGVAHHRBD-UHFFFAOYSA-N 0.000 description 1
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- LCXXOYOABWDYBF-UHFFFAOYSA-N trimethoxy(pentadecyl)silane Chemical compound CCCCCCCCCCCCCCC[Si](OC)(OC)OC LCXXOYOABWDYBF-UHFFFAOYSA-N 0.000 description 1
- HILHCDFHSDUYNX-UHFFFAOYSA-N trimethoxy(pentyl)silane Chemical compound CCCCC[Si](OC)(OC)OC HILHCDFHSDUYNX-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、建築物等の外装仕上げに用いられている陶磁器タイル面の改修方法に係るものである。 The present invention relates to a method for repairing a ceramic tile surface used for exterior finishing of a building or the like.
磁器質タイル、せっ器質タイル、半磁器質タイル、陶器質タイル等の陶磁器タイルによる仕上げは、一般に、耐久性や意匠性が良好であることから、建築物等の躯体の保護、あるいは美観性の向上のために好んで使用されている。 Finishing with porcelain tiles such as porcelain tiles, porcelain tiles, semi-porcelain tiles, and porcelain tiles generally has good durability and design characteristics, so that the protection of skeletons such as buildings or aesthetics It is used favorably for improvement.
しかしながら、建築物等の外装用として施工された陶磁器タイル面の場合は、太陽光や風雨等の影響を受ける環境下で長期間曝露されることとなる。その結果、タイル自体の劣化はさほど進行していなくても、目地部分においては中性化や強度低下等に挙げられるような劣化が進行しやすい。 However, in the case of a ceramic tile surface constructed for an exterior of a building or the like, it is exposed for a long time in an environment affected by sunlight, wind and rain. As a result, even if the deterioration of the tile itself has not progressed so much, deterioration such as neutralization and strength reduction tends to proceed in the joint portion.
陶磁器タイル面を改修する方法としては、特開平6−33565号公報(特許文献1)に、複数のクリヤー塗料を積層する方法が提案されている。該公報に記載の発明においては、クリヤー塗料を使用することで、既存陶磁器タイル面の意匠性を変更することなく、吸水防止性を付与することができる。しかし、このような方法で得られた陶磁器タイル面は、塗装直後の仕上り性は良好であっても、経時的に汚染が進行し美観性が損われるおそれがある。 As a method for repairing the ceramic tile surface, a method of laminating a plurality of clear paints is proposed in JP-A-6-33565 (Patent Document 1). In the invention described in this publication, by using a clear paint, water absorption prevention can be imparted without changing the design of the existing ceramic tile surface. However, even if the ceramic tile surface obtained by such a method has a good finish immediately after coating, there is a possibility that the contamination will progress over time and the aesthetics may be impaired.
これに対し、特開平9−287265号公報(特許文献2)には、陶磁器タイル面の目地部のみを塗装する方法が記載されている。この公報に記載の方法は、タイルの目地部とその周辺部にマスキング用水溶性樹脂を塗布し、目地部に当該水溶性樹脂を滲み込ませた後、目地部を中心に汚れ防止塗料を塗付し、次いでタイル表面にはみ出した塗料を水溶性樹脂の塗膜とともに除去する、というものである。この方法によれば、タイル部は未塗装とし、目地部のみに塗装を施すことができる。しかし、この特許文献2の方法では、タイル部の塗膜を除去する工程が必須であり、作業が煩雑となることは否めない。 On the other hand, Japanese Patent Application Laid-Open No. 9-287265 (Patent Document 2) describes a method of painting only joint portions of a ceramic tile surface. In the method described in this publication, a water-soluble resin for masking is applied to the joint portion of the tile and its peripheral portion, the water-soluble resin is soaked into the joint portion, and then an antifouling paint is applied around the joint portion. Then, the paint that protrudes from the tile surface is removed together with the water-soluble resin coating. According to this method, the tile portion can be unpainted and only the joint portion can be painted. However, in the method of Patent Document 2, a step of removing the coating film on the tile portion is essential, and it cannot be denied that the operation becomes complicated.
本発明はこのような問題点に鑑みなされたもので、陶磁器タイル面に対し、既存タイル面の特性を生かしつつ、優れた吸水防止性、耐汚染性等を発揮させることが可能な簡便な改修方法を提供することを目的とするものである。 The present invention has been made in view of such problems, and it is a simple modification that can exhibit excellent water absorption prevention, contamination resistance, etc. while making use of the characteristics of the existing tile surface with respect to the ceramic tile surface. It is intended to provide a method.
このような課題を解決するため、本発明者らは鋭意検討の結果、陶磁器タイル面全面に対して浸透性吸水防止材と特定表面処理材を順に塗付する方法に想到し、本発明を完成させるに至った。 In order to solve such problems, the present inventors have intensively studied and conceived a method of sequentially applying a permeable water absorption preventing material and a specific surface treatment material to the entire surface of the ceramic tile, thereby completing the present invention. I came to let you.
すなわち、本発明の磁器タイル面の改修方法は、以下の特徴を有するものである。
1.タイル部及び目地部からなる陶磁器タイル面を塗装によって改修する方法であって、陶磁器タイル面全面に浸透性吸水防止材を塗付する第1工程、陶磁器タイル面全面に表面処理液を塗付する第2工程、を含み、
前記第2工程における表面処理液は、テトラアルコキシシラン化合物を0.1〜50重量%含有するものであることを特徴とする陶磁器タイル面の改修方法。
2.前記第1工程における浸透性吸水防止材は、アルキル基の炭素数が1〜18であるアルキルアルコキシシラン化合物を0.1〜50重量%含有するものであることを特徴とする1.記載の陶磁器タイル面の改修方法。
That is, the method for repairing a porcelain tile surface of the present invention has the following characteristics.
1. This is a method for refurbishing a ceramic tile surface composed of a tile part and a joint part by painting, a first step of applying a permeable water absorption preventing material to the entire surface of the ceramic tile surface, and applying a surface treatment liquid to the entire surface of the ceramic tile surface. Including a second step,
The method for repairing a ceramic tile surface, wherein the surface treatment liquid in the second step contains a tetraalkoxysilane compound in an amount of 0.1 to 50% by weight.
2. The permeable water absorption preventing material in the first step contains 0.1 to 50% by weight of an alkylalkoxysilane compound having 1 to 18 carbon atoms in the alkyl group. The method of repairing the ceramic tile surface described.
本発明では、既存タイルの表面状態や外観、質感等をそのまま生かすとともに、目地部の吸水防止性等を高め、目地部の中性化、強度低下、エフロレッセンス発生等を防止することができ、ひいては陶磁器タイル面全体の劣化防止を図ることができる。さらに、本発明では、耐汚染性の点においても有利な効果を得ることができる。 In the present invention, the surface state, appearance, texture, etc. of the existing tile can be utilized as they are, and the water absorption prevention property of the joint part can be improved, and the neutralization of the joint part, strength reduction, efflorescence occurrence, etc. can be prevented. As a result, deterioration of the entire ceramic tile surface can be prevented. Furthermore, in the present invention, advantageous effects can also be obtained in terms of contamination resistance.
以下、本発明を実施するための最良の形態について説明する。 Hereinafter, the best mode for carrying out the present invention will be described.
本発明は、建築物外装等の陶磁器タイル面に対して適用するものである。
陶磁器タイルの種類としては、例えば磁器質タイル、せっ器質タイル、半磁器質タイル、陶器質タイル等が挙げられる。このような陶磁器タイル面は、基材に対して下地モルタルで下地を作り、張りモルタルで陶磁器タイルを張り、目地モルタルで目地を詰めることにより形成されたものが一般的である。したがって、通常、陶磁器タイル間の目地部は、モルタルが露出した状態となっている。
The present invention is applied to a ceramic tile surface such as a building exterior.
Examples of the ceramic tile include a porcelain tile, a porcelain tile, a semi- porcelain tile, and a porcelain tile. Such a ceramic tile surface is generally formed by making a base with a base mortar on a base material, stretching ceramic tiles with a tension mortar, and filling the joints with joint mortar. Therefore, the joints between the ceramic tiles are usually in a state where the mortar is exposed.
本発明では、第1工程として、タイル部及び目地部を含む陶磁器タイル面全面に浸透性吸水防止材を塗付する。陶磁器タイル面において、目地部はタイル部に比べポーラスな状態となっているため、浸透性吸水防止材は、目地部のほうに深く浸透して撥水性被膜を形成する。すなわち、この第1工程における浸透性吸水防止材は、主として目地部に吸水防止性を付与する役割を担うものである。 In the present invention, as the first step, a permeable water absorption preventing material is applied to the entire surface of the ceramic tile surface including the tile portion and the joint portion. On the ceramic tile surface, the joint portion is more porous than the tile portion. Therefore, the permeable water absorption preventing material penetrates deeply into the joint portion to form a water-repellent coating. That is, the permeable water absorption preventing material in the first step mainly plays a role of imparting water absorption preventing properties to the joint portion.
浸透性吸水防止材としては、このような吸水防止効果が発揮可能な材料であれば特に制限されず使用できるが、例えば、シリコーン樹脂、アクリル樹脂、ウレタン樹脂、不飽和ポリエステル樹脂等を主成分とする樹脂系浸透性吸水防止材;アルキルシリコネート化合物を主成分とするシリコネート系浸透性吸水防止材;加水分解性シラン化合物及び/またはその縮合物を主成分とするシラン系浸透性吸水防止材、等が挙げられる。本発明では、この中でもシラン系浸透性吸水防止材が好ましく使用できる。シラン系浸透性吸水防止材としては、オルガノアルコキシシラン化合物、オルガノアセトキシシラン化合物、オルガノハロゲンシラン化合物、オルガノジシラン化合物、オルガノシランカルボン酸化合物、オルガノシランチオール化合物、オルガノシリコンイソシアナート化合物、オルガノシリコンイソチオシアナート化合物等、あるいはこれらの縮合物を主成分とするもの等が挙げられる。 The permeable water absorption preventing material is not particularly limited as long as it is a material capable of exhibiting such a water absorption preventing effect. For example, a silicone resin, an acrylic resin, a urethane resin, an unsaturated polyester resin, or the like is a main component. A resin-based permeable water-absorbing material; a silicon-based permeable water-absorbing material having an alkyl siliconate compound as a main component; a silane-based permeable water-absorbing material having a hydrolyzable silane compound and / or a condensate thereof as a main component, Etc. In the present invention, among these, silane-based permeable water absorption preventing materials can be preferably used. Silane-based water-absorbing materials include organoalkoxysilane compounds, organoacetoxysilane compounds, organohalogensilane compounds, organodisilane compounds, organosilanecarboxylic acid compounds, organosilanethiol compounds, organosilicon isocyanate compounds, organosilicon isothiocyanates. Examples thereof include a narate compound or the like, or a compound containing these condensates as a main component.
本発明における浸透性吸水防止材は、上述の成分が媒体に溶解ないし分散した溶液であり、乳化剤等によって分散されたものであってもよい。浸透性吸水防止材における媒体としては特に限定されず、芳香族炭化水素系溶剤を主成分とする強溶剤系、脂肪族炭化水素系溶剤を主成分とする弱溶剤系、水を主成分とする水性系等の各種形態が使用可能である。なお、主成分となる溶剤は、通常それぞれの媒体中に50重量%以上(好ましくは70重量%以上)含まれていればよい。 The permeable water absorption preventing material in the present invention is a solution in which the above-described components are dissolved or dispersed in a medium, and may be dispersed by an emulsifier or the like. The medium in the permeable water absorption preventing material is not particularly limited, and is a strong solvent system mainly containing an aromatic hydrocarbon solvent, a weak solvent system mainly containing an aliphatic hydrocarbon solvent, and water as a main ingredient. Various forms such as an aqueous system can be used. In addition, the solvent used as a main component should just be normally contained by 50 weight% or more (preferably 70 weight% or more) in each medium.
このような浸透性吸水防止材において、その主成分となる化合物の含有比率は、通常0.1〜50重量%、好ましくは1〜30重量%、より好ましくは2〜20重量%である。この含有比率が低すぎる場合は、目地部の吸水防止性が不十分となりやすく、逆に高すぎる場合は、タイル部の耐汚染性に悪影響を与えるおそれがある。 In such a permeable water absorption preventing material, the content ratio of the compound as the main component is usually 0.1 to 50% by weight, preferably 1 to 30% by weight, and more preferably 2 to 20% by weight. When this content ratio is too low, the water absorption preventing property of the joint portion tends to be insufficient, and conversely, when it is too high, the stain resistance of the tile portion may be adversely affected.
また、浸透性吸水防止材は、本発明の効果を著しく阻害しない範囲内において、例えば樹脂成分、着色剤、増粘剤、湿潤剤、凍結防止剤、防腐剤、防黴剤、防藻剤、抗菌剤、分散剤、消泡剤、紫外線吸収剤、酸化防止剤、触媒等を含むものであってもよい。浸透性吸水防止材は、これらの成分を常法により均一に混合することで製造することができる。 Further, the permeable water absorption preventive material is within a range that does not significantly impair the effects of the present invention, for example, resin components, colorants, thickeners, wetting agents, antifreezing agents, antiseptics, antifungal agents, antialgae agents, It may contain an antibacterial agent, a dispersant, an antifoaming agent, an ultraviolet absorber, an antioxidant, a catalyst and the like. The permeable water absorption preventing material can be produced by uniformly mixing these components by a conventional method.
本発明における浸透性吸水防止材としては、特に、アルキル基の炭素数が1〜18であるアルキルアルコキシシラン化合物を0.1〜50重量%(好ましくは1〜30重量%、より好ましくは2〜20重量%)含有するものが好適である。このようなアルキルアルコキシシラン化合物は、珪素原子にアルキル基とアルコキシル基が結合した化合物であり、例えば下記式(1)で示される化合物及び/またはその縮合物を使用することができる。
R1−Si(OR2)3 (1)
(式中R1、R2はアルキル基を示す。R1の炭素数は1〜18。)
As the permeable water absorption preventing material in the present invention, 0.1 to 50% by weight (preferably 1 to 30% by weight, more preferably 2 to 2%) of an alkylalkoxysilane compound having an alkyl group having 1 to 18 carbon atoms. 20% by weight) is preferred. Such an alkylalkoxysilane compound is a compound in which an alkyl group and an alkoxyl group are bonded to a silicon atom. For example, a compound represented by the following formula (1) and / or a condensate thereof can be used.
R 1 —Si (OR 2 ) 3 (1)
(In the formula, R 1 and R 2 represent an alkyl group. R 1 has 1 to 18 carbon atoms.)
具体的に、アルキルアルコキシシランとしては、例えば、メチルトリメトキシシラン、メチルトリエトキシシラン、メチルトリプロポキシシラン、エチルトリメトキシシラン、エチルトリエトキシシラン、プロピルトリメトキシシラン、プロピルトリエトキシシラン、ブチルトリメトキシシラン、ブチルトリエトキシシラン、ペンチルトリメトキシシラン、ペンチルトリエトキシシラン、ヘキシルトリメトキシシラン、ヘキシルトリエトキシシラン、ヘプチルトリメトキシシラン、ヘプチルトリエトキシシラン、オクチルトリメトキシシラン、オクチルトリエトキシシラン、ノニルトリメトキシシラン、ノニルトリエトキシシラン、デシルトリメトキシシラン、デシルトリエトキシシラン、ウンデシルトリメトキシシラン、ウンデシルトリエトキシシラン、ドデシルトリメトキシシラン、ドデシルトリエトキシシラン、トリデシルトリメトキシシラン、トリデシルトリエトキシシラン、テトラデシルトリメトキシシラン、テトラデシルトリエトキシシラン、ペンタデシルトリメトキシシラン、ペンタデシルトリエトキシシラン、ヘキサデシルトリメトキシシラン、ヘキサデシルトリエトキシシラン、ヘプタデシルトリメトキシシラン、ヘプタデシルトリエトキシシラン、オクタデシルトリメトキシシラン、オクタデシルトリエトキシシラン等が挙げられる。これらの縮合物としては、平均縮合度1〜10程度のものが使用できる。 Specifically, examples of the alkylalkoxysilane include methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, and butyltrimethoxy. Silane, butyltriethoxysilane, pentyltrimethoxysilane, pentyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, heptyltrimethoxysilane, heptyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, nonyltrimethoxy Silane, nonyltriethoxysilane, decyltrimethoxysilane, decyltriethoxysilane, undecyltrimethoxysilane, undecyltrie Xysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, tridecyltrimethoxysilane, tridecyltriethoxysilane, tetradecyltrimethoxysilane, tetradecyltriethoxysilane, pentadecyltrimethoxysilane, pentadecyltriethoxysilane, hexadecyl Examples include trimethoxysilane, hexadecyltriethoxysilane, heptadecyltrimethoxysilane, heptadecyltriethoxysilane, octadecyltrimethoxysilane, octadecyltriethoxysilane, and the like. As these condensates, those having an average degree of condensation of about 1 to 10 can be used.
アルキルアルコキシシラン化合物としては、アルキル基の炭素数が1〜18(好ましくは3〜12、より好ましくは5〜8)のものを使用する。アルキル基は、その一部がハロゲン等で置換されたものであってもよい。アルキル基の炭素数がこのような範囲内であれば、目地部の吸水防止性を高めることが可能となる。アルキルアルコキシシラン化合物におけるアルコキシル基としては、その炭素数が1〜8(好ましくは1〜4、より好ましくは1〜2)のものを使用すればよい。 As the alkylalkoxysilane compound, an alkyl group having 1 to 18 carbon atoms (preferably 3 to 12, more preferably 5 to 8) is used. The alkyl group may be partially substituted with halogen or the like. If the carbon number of the alkyl group is within such a range, it becomes possible to improve the water absorption preventing property of the joint. As the alkoxyl group in the alkylalkoxysilane compound, those having 1 to 8 carbon atoms (preferably 1 to 4, more preferably 1 to 2) may be used.
このような浸透性吸水防止材においては、アルキルアルコキシシラン化合物の作用を十分に発揮させるため、樹脂成分はあまり多く混合しないことが望ましく、アルキルアルコキシシラン化合物よりも低い含有比率とすることが望ましい。樹脂成分の含有比率は、通常20重量%未満(好ましくは10重量%以下)であり、樹脂成分を含まない形態も好適である。 In such a permeable water absorption preventive material, it is desirable that the resin component is not mixed so much and the content ratio is lower than that of the alkylalkoxysilane compound in order to sufficiently exert the action of the alkylalkoxysilane compound. The content ratio of the resin component is usually less than 20% by weight (preferably 10% by weight or less), and a form not including the resin component is also suitable.
第1の工程では、このような浸透性吸水防止材を陶磁器タイル面の全面に均一に塗装する。塗装器具は特に限定されず、刷毛、スプレー、ローラー等公知の塗装器具を使用することができる。浸透性吸水防止材を塗装する際の所要量は、陶磁器タイルの種類・状態等を勘案して適宜設定すればよいが、通常30〜500g/m2(好ましくは80〜200g/m2)程度、固形分換算では通常1〜250g/m2(好ましくは2〜100g/m2)程度である。浸透性吸水防止材の塗付、乾燥は、通常常温で行えばよい。本発明では、浸透性吸水防止材の乾燥後、そのまま次工程の塗装を行うことができ、タイル部上の浸透性吸水防止材を除去する等の工程は省くことができる。工程間の間隔は、通常1時間以上10日以内、好ましくは3時間以上7日以内である。 In the first step, such a permeable water absorption preventing material is uniformly applied to the entire surface of the ceramic tile surface. A coating instrument is not specifically limited, Well-known coating instruments, such as a brush, spray, and a roller, can be used. The required amount for coating the permeable water absorption preventing material may be appropriately set in consideration of the type / state of the ceramic tile, but is usually about 30 to 500 g / m 2 (preferably 80 to 200 g / m 2 ). In terms of solid content, it is usually about 1 to 250 g / m 2 (preferably 2 to 100 g / m 2 ). The application and drying of the permeable water absorption preventing material may be usually performed at room temperature. In the present invention, after the permeable water absorption preventing material is dried, the next process can be applied as it is, and the steps such as removing the permeable water absorption preventing material on the tile portion can be omitted. The interval between the steps is usually 1 hour or more and 10 days or less, preferably 3 hours or more and 7 days or less.
なお、本発明では、上記第1の工程の前処理として、目地部あるいはタイル面全体に対し洗浄等の処理を行うこともできる。洗浄処理は、タイル面の全体または一部に対し各種洗浄剤を塗付した後、水洗いする方法等を採用すればよい。 In the present invention, as a pretreatment of the first step, a process such as washing can be performed on the joint portion or the entire tile surface. For the cleaning treatment, a method of washing with water after applying various cleaning agents to the whole or a part of the tile surface may be employed.
本発明における第2工程では、陶磁器タイル面全面に表面処理液を塗付する。この表面処理液は、前述の浸透性吸水防止材との相乗効果によって、目地部の撥水性、吸水防止性等を飛躍的に高める作用を発揮するものであり、目地部における中性化、強度低下、エフロレッセンス発生等の抑制にも有効にはたらくものである。さらに、タイル部においては、その親水化作用によって耐汚染性を高め、タイル面の美観性保持に大きく寄与するものである。 In the second step of the present invention, the surface treatment liquid is applied to the entire surface of the ceramic tile surface. This surface treatment liquid exerts the effect of dramatically improving the water repellency, water absorption prevention, etc. of the joint part by the synergistic effect with the above-mentioned permeable water absorption prevention material. It is also effective in suppressing the decrease and the occurrence of efflorescence. Furthermore, in the tile part, the anti-contamination property is enhanced by its hydrophilic effect, and it greatly contributes to maintaining the aesthetic appearance of the tile surface.
第2工程における表面処理液としては、テトラアルコキシシラン化合物を0.1〜50重量%含有するものを使用する。
表面処理液を構成する成分のうち、テトラアルコキシシラン化合物としては、下記式(2)で示されるテトラアルコキシシラン及び/またはその縮合物、あるいはそのアルキル基の一部をポリオキシアルキレン基等で変性したもの等を使用することができる。
Si(OR3)4 (2)
(式中R3はアルキル基を示す。)
As the surface treatment liquid in the second step, a liquid containing 0.1 to 50% by weight of a tetraalkoxysilane compound is used.
Among the components constituting the surface treatment liquid, as a tetraalkoxysilane compound, a tetraalkoxysilane represented by the following formula (2) and / or a condensate thereof, or a part of its alkyl group is modified with a polyoxyalkylene group or the like. Can be used.
Si (OR 3 ) 4 (2)
(In the formula, R 3 represents an alkyl group.)
このようなテトラアルコキシシランとしては、例えば、テトラメトキシシラン、テトラエトキシシラン、テトラn−プロポキシシラン、テトライソプロポキシシラン、テトラn−ブトキシシラン、テトライソブトキシシラン、テトラsec−ブトキシシラン、テトラt−ブトキシシラン等が挙げられ、炭素数の異なるアルキル基が混在するものも使用できる。これらの縮合物としては、通常、平均縮合度1〜20(好ましくは2〜10)程度のものが使用できる。 Examples of such tetraalkoxysilane include tetramethoxysilane, tetraethoxysilane, tetra n-propoxysilane, tetraisopropoxysilane, tetra n-butoxysilane, tetraisobutoxysilane, tetra sec-butoxysilane, tetra-t- Examples thereof include butoxysilane, and those having a mixture of alkyl groups having different carbon numbers can also be used. As these condensates, those having an average degree of condensation of about 1 to 20 (preferably 2 to 10) can be used.
テトラアルコキシシラン化合物におけるアルコキシル基としては、その炭素数が1〜8(好ましくは1〜4、より好ましくは1〜2)のものであればよい。このようなアルコキシル基を有するものを使用すれば、本発明の効果を安定的に得ることが可能となる。 The alkoxyl group in the tetraalkoxysilane compound may have 1 to 8 (preferably 1 to 4, more preferably 1 to 2) carbon atoms. Use of the compound having such an alkoxyl group makes it possible to stably obtain the effects of the present invention.
表面処理液におけるテトラアルコキシシラン化合物の含有比率は、通常0.1〜50重量%、好ましくは0.5〜20重量%、より好ましくは1〜10重量%である。テトラアルコキシシラン化合物の含有比率が、上記範囲よりも低すぎる場合は、耐汚染性において十分な効果が得られ難くなり、逆に高すぎる場合は、タイル部の仕上り性等に悪影響を与えるおそれがある。 The content ratio of the tetraalkoxysilane compound in the surface treatment liquid is usually 0.1 to 50% by weight, preferably 0.5 to 20% by weight, and more preferably 1 to 10% by weight. When the content ratio of the tetraalkoxysilane compound is too lower than the above range, it is difficult to obtain a sufficient effect in the stain resistance. On the contrary, when the content ratio is too high, there is a possibility of adversely affecting the finish of the tile part. is there.
本発明における表面処理液は、上記テトラアルコキシシラン化合物が媒体に溶解ないし分散した溶液であり、乳化剤等によって分散されたものであってもよい。表面処理液における媒体は特に限定されず、芳香族炭化水素系溶剤を主成分とする強溶剤系、脂肪族炭化水素系溶剤を主成分とする弱溶剤系、水を主成分とする水性系等の各種形態が使用可能である。主成分となる溶剤は、通常それぞれの媒体中に50重量%以上(好ましくは70重量%以上)含まれていればよい。 The surface treatment liquid in the present invention is a solution in which the tetraalkoxysilane compound is dissolved or dispersed in a medium, and may be dispersed by an emulsifier or the like. The medium in the surface treatment liquid is not particularly limited, and a strong solvent system mainly containing an aromatic hydrocarbon solvent, a weak solvent system mainly containing an aliphatic hydrocarbon solvent, an aqueous system mainly containing water, etc. Various forms of can be used. The solvent as the main component is usually contained in 50% by weight or more (preferably 70% by weight or more) in each medium.
また、表面処理液は、本発明の効果を著しく阻害しない範囲内において、例えば樹脂成分、着色剤、増粘剤、湿潤剤、凍結防止剤、防腐剤、防黴剤、防藻剤、抗菌剤、分散剤、消泡剤、紫外線吸収剤、酸化防止剤、触媒等を含むものであってもよい。本発明における表面処理液は、これらの成分を常法により均一に混合することで製造することができる。なお、本発明の表面処理液では、テトラアルコキシシラン化合物の作用を十分に発揮させるため、樹脂成分はあまり多く混合しないことが望ましく、テトラアルコキシシラン化合物よりも低い含有比率とすることが望ましい。樹脂成分の含有比率は、通常20重量%未満(好ましくは10重量%以下)であり、樹脂成分を含まない形態も好適である。また、本発明では、十分な耐汚染効果が得られるため、表面処理液に光触媒等を混合する必要もない。 In addition, the surface treatment liquid is, for example, a resin component, a colorant, a thickener, a wetting agent, an antifreezing agent, an antiseptic agent, an antifungal agent, an antialgae agent, and an antibacterial agent, as long as the effects of the present invention are not significantly impaired. , A dispersant, an antifoaming agent, an ultraviolet absorber, an antioxidant, a catalyst, and the like. The surface treatment liquid in the present invention can be produced by uniformly mixing these components by a conventional method. In addition, in the surface treatment liquid of the present invention, it is desirable that the resin component is not mixed so much and the content ratio is lower than that of the tetraalkoxysilane compound in order to sufficiently exert the action of the tetraalkoxysilane compound. The content ratio of the resin component is usually less than 20% by weight (preferably 10% by weight or less), and a form not including the resin component is also suitable. Moreover, in this invention, since sufficient anti-contamination effect is acquired, it is not necessary to mix a photocatalyst etc. with a surface treatment liquid.
第2の工程では、このような表面処理液を陶磁器タイル面の全面に均一に塗装する。塗装器具は特に限定されず、刷毛、スプレー、ローラー等公知の塗装器具を使用することができる。表面処理液を塗装する際の所要量は、陶磁器タイルの種類・状態等を勘案して適宜設定すればよいが、通常10〜300g/m2(好ましくは30〜150g/m2)程度、固形分換算では通常0.1〜150g/m2(好ましくは0.3〜75g/m2)程度である。である。表面処理液の塗付、乾燥は、通常常温で行えばよい。 In the second step, such a surface treatment liquid is uniformly applied to the entire surface of the ceramic tile surface. A coating instrument is not specifically limited, Well-known coating instruments, such as a brush, spray, and a roller, can be used. The required amount for coating the surface treatment liquid may be appropriately set in consideration of the type and state of the ceramic tile, but is usually about 10 to 300 g / m 2 (preferably 30 to 150 g / m 2 ), solid In terms of minutes, it is usually about 0.1 to 150 g / m 2 (preferably 0.3 to 75 g / m 2 ). It is. The application and drying of the surface treatment liquid may be usually performed at room temperature.
以上のように、本発明では、各工程においてそれぞれ特定の材料を用いることにより、陶磁器タイル面の目地部では撥水性、タイル部では親水性を示す仕上りを得ることができ、吸水防止性、耐汚染性等において優れた効果を発揮することができる。その作用機構は明らかではないが、目地部とタイル部では性状が全く異なるため、それぞれの部位における各工程の材料の浸透度、反応性等も異なるものとなり、それ故上述の如き効果が奏されるものと推察される。本発明の効果は、単に浸透性吸水防止材を重ね塗りした場合、あるいは表面処理液を重ね塗りした場合等では得られ難いものである。 As described above, in the present invention, by using a specific material in each step, it is possible to obtain a finish that exhibits water repellency at the joints of the ceramic tile surface and hydrophilicity at the tiles. It is possible to exert an excellent effect in terms of contamination. The mechanism of action is not clear, but the properties of the joints and tiles are completely different, so the penetration and reactivity of the materials in each process at each part are also different, and the effects as described above are thus achieved. Inferred. The effect of the present invention is difficult to obtain when the permeable water absorption preventing material is simply overcoated, or when the surface treatment liquid is overcoated.
以下に実施例を示し、本発明の特徴をより明確にする。 Examples are given below to clarify the features of the present invention.
(実施例1)
目地部がセメントモルタル、タイル部が黄土色の磁器質タイルからなる試験基材に対し、浸透性吸水防止材A(ヘキシルトリメトキシシランと脂肪族炭化水素系溶剤の混合物、重量比率3:97)を所要量120g/m2で全面にスプレー塗装した後、標準状態(気温23℃・相対湿度50%)にて3時間乾燥させた。次いで、表面処理液A(テトラメトキシシラン縮合物(平均縮合度4)と脂肪族炭化水素系溶剤の混合物、重量比率2:98)を所要量50g/m2でスプレー塗装し、標準状態で24時間乾燥させた。
以上の方法で得られた試験板につき以下の試験を行った。その結果、試験Iでは、目地部において優れた撥水性を示し、試験前後での色変化も認められなかった。試験IIの曝露後の外観状態も良好であった。
(Example 1)
Permeable water absorption preventive material A (mixture of hexyltrimethoxysilane and aliphatic hydrocarbon solvent, weight ratio 3:97) against a test base material composed of cement mortar and tiled porcelain tile. Was spray coated on the entire surface at a required amount of 120 g / m 2 and then dried for 3 hours in a standard state (temperature 23 ° C., relative humidity 50%). Next, the surface treatment liquid A (a mixture of tetramethoxysilane condensate (average condensation degree 4) and aliphatic hydrocarbon solvent, weight ratio 2:98) was spray-coated at a required amount of 50 g / m 2 , and 24 under standard conditions. Let dry for hours.
The following test was performed on the test plate obtained by the above method. As a result, in Test I, excellent water repellency was exhibited in the joint portion, and no color change was observed before and after the test. The appearance after exposure in Test II was also good.
・試験I(吸水防止性)
試験板を垂直に固定し、その試験板に対しホースを用いて1分間連続的に散水を行った。この際、目地部における撥水具合と色変化を観察した。
・試験II(耐汚染性)
屋外にて試験板を垂直に設置し、1ヶ月間屋外曝露を行った後、試験板の外観状態を観察した。
・ Test I (Water absorption prevention)
The test plate was fixed vertically, and water was continuously sprayed to the test plate using a hose for 1 minute. Under the present circumstances, the water-repellent condition and color change in a joint part were observed.
Test II (contamination resistance)
After the test plate was installed vertically outdoors and exposed outdoors for one month, the appearance of the test plate was observed.
(実施例2)
浸透性吸水防止材として浸透性吸水防止材B(ヘキシルトリメトキシシランと脂肪族炭化水素系溶剤の混合物、重量比率8:92)、表面処理液として表面処理液B(テトラメトキシシラン縮合物(平均縮合度8)と脂肪族炭化水素系溶剤の混合物、重量比率2:98)を使用して、実施例1と同様の方法で試験板を作製し、試験を行った。
その結果、試験Iでは、目地部において優れた撥水性を示し、試験前後での色変化も認められなかった。試験IIの曝露後の外観状態も良好であった。
(Example 2)
Permeable water-absorbing material B as a permeable water-absorbing material (mixture of hexyltrimethoxysilane and aliphatic hydrocarbon solvent, weight ratio 8:92), surface-treating liquid B (tetramethoxysilane condensate (average) as surface-treating liquid A test plate was prepared and tested in the same manner as in Example 1 using a mixture of the degree of condensation 8) and an aliphatic hydrocarbon solvent, weight ratio 2:98).
As a result, in Test I, excellent water repellency was exhibited at the joint, and no color change was observed before and after the test. The appearance after exposure in Test II was also good.
(実施例3)
浸透性吸水防止材として浸透性吸水防止材C(ヘキシルトリメトキシシランと脂肪族炭化水素系溶剤の混合物、重量比率12:88)、表面処理液として表面処理液C(テトラメトキシシラン縮合物(平均縮合度4)と脂肪族炭化水素系溶剤の混合物、重量比率4:96)を使用して、実施例1と同様の方法で試験板を作製し、試験を行った。
その結果、試験Iでは、目地部において優れた撥水性を示し、試験前後での色変化も認められなかった。試験IIの曝露後の外観状態も良好であった。
(Example 3)
Permeable water-absorbing material C as a permeable water-absorbing material (mixture of hexyltrimethoxysilane and aliphatic hydrocarbon solvent, weight ratio 12:88), surface treatment liquid C (tetramethoxysilane condensate (average) Using a mixture of the degree of condensation 4) and an aliphatic hydrocarbon solvent, weight ratio 4:96), a test plate was prepared in the same manner as in Example 1 and tested.
As a result, in Test I, excellent water repellency was exhibited at the joint, and no color change was observed before and after the test. The appearance after exposure in Test II was also good.
(比較例1)
実施例1と同様の試験基材に対し、浸透性吸水防止材A(ヘキシルトリメトキシシランと脂肪族炭化水素系溶剤の混合物、重量比率3:97)を所要量120g/m2で全面にスプレー塗装した後、標準状態にて3時間乾燥させた。次いで、再度、浸透性吸水防止材Aを所要量120g/m2で全面にスプレー塗装した後、標準状態で24時間乾燥させた。
以上の方法で得られた試験板につき、実施例1と同様の試験を行ったところ、試験Iでは、実施例に比べ撥水性が低くなり、試験後に濡れ色が生じた。また、試験IIでは汚れが認められた。
(Comparative Example 1)
The same test substrate as in Example 1 was sprayed with permeable water absorption preventing material A (mixture of hexyltrimethoxysilane and aliphatic hydrocarbon solvent, weight ratio 3:97) over the entire surface at a required amount of 120 g / m 2. After painting, it was dried for 3 hours in the standard state. Next, the permeable water absorption preventing material A was again spray-coated on the entire surface at a required amount of 120 g / m 2 and then dried in a standard state for 24 hours.
The test plate obtained by the above method was tested in the same manner as in Example 1. As a result, in Test I, the water repellency was lower than in the Example and a wet color was generated after the test. In Test II, dirt was observed.
(比較例2)
実施例1と同様の試験基材に対し、表面処理液A(テトラメトキシシラン縮合物(平均縮合度4)と脂肪族炭化水素系溶剤の混合物、重量比率2:98)を所要量50g/m2で全面にスプレー塗装し、標準状態にて3時間乾燥させた。次いで、再度、表面処理液Aを所要量50g/m2で全面にスプレー塗装した後、標準状態で24時間乾燥させた。
以上の方法で得られた試験板につき、実施例1と同様の試験を行ったところ、試験IIの結果は良好であったが、試験Iでは、実施例に比べ撥水性が低くなり、試験後に濡れ色が生じた。
(Comparative Example 2)
The required amount of surface treatment liquid A (a mixture of tetramethoxysilane condensate (average condensation degree 4) and aliphatic hydrocarbon solvent, weight ratio 2:98) is 50 g / m on the same test substrate as in Example 1. 2 was spray coated on the entire surface and dried for 3 hours in a standard state. Next, the surface treatment liquid A was sprayed again on the entire surface at a required amount of 50 g / m 2 and then dried in a standard state for 24 hours.
The test plate obtained by the above method was tested in the same manner as in Example 1. As a result, the result of Test II was good, but in Test I, the water repellency was lower than that of the Example. A wet color occurred.
Claims (2)
前記第2工程における表面処理液は、テトラアルコキシシラン化合物を0.1〜50重量%含有するものであることを特徴とする陶磁器タイル面の改修方法。 A method of repairing a ceramic tile surface composed of a tile portion and a joint portion by painting, a first step of applying a permeable water absorption preventing material to the entire surface of the ceramic tile surface, and applying a surface treatment liquid to the entire surface of the ceramic tile surface. Including a second step,
The method for repairing a ceramic tile surface, wherein the surface treatment liquid in the second step contains a tetraalkoxysilane compound in an amount of 0.1 to 50% by weight.
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