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TWI638717B - 裝飾片材 - Google Patents

裝飾片材 Download PDF

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Publication number
TWI638717B
TWI638717B TW105121223A TW105121223A TWI638717B TW I638717 B TWI638717 B TW I638717B TW 105121223 A TW105121223 A TW 105121223A TW 105121223 A TW105121223 A TW 105121223A TW I638717 B TWI638717 B TW I638717B
Authority
TW
Taiwan
Prior art keywords
decorative
layer
decorative sheet
resin
core layer
Prior art date
Application number
TW105121223A
Other languages
English (en)
Other versions
TW201707982A (zh
Inventor
紫藤和哉
香山和輝
士反慶介
Original Assignee
愛克工業股份有限公司
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 愛克工業股份有限公司 filed Critical 愛克工業股份有限公司
Publication of TW201707982A publication Critical patent/TW201707982A/zh
Application granted granted Critical
Publication of TWI638717B publication Critical patent/TWI638717B/zh

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Classifications

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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29Laminated material
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    • B32B17/02Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • B32B17/04Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
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    • B44DECORATIVE ARTS
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    • B44C5/0469Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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Abstract

本發明提供一種不易捲曲之裝飾片材。本發明之裝飾片材具備裝飾板、及設於上述裝飾板之一側之黏著劑層,且上述裝飾板具備:(A)裝飾層,其位於與上述一側相反之一側;(B)核心層,其含有包含纖維質基材之預浸體;及(C)平衡層,其係以吸熱性金屬氫氧化物混抄紙作為基材。較佳為上述(C)位於上述(A)與上述(B)之間。較佳為上述(C)包含熱硬化性樹脂。較佳為上述(C)中之上述熱硬化性樹脂之含量為5.5~55g/m2。較佳為上述(C)中所包含之上述熱硬化性樹脂為乙烯酯樹脂。

Description

裝飾片材
本發明係關於一種裝飾片材。
先前,將三聚氰胺樹脂含浸裝飾紙、酚樹脂含浸紙等積層而成之三聚氰胺裝飾板用於書桌、餐桌、櫃台等。
作為將三聚氰胺裝飾板接著於合板、塑合板、中密度纖維板等基材之方法,有於三聚氰胺裝飾板塗佈接著劑,於接著劑乾燥後,將三聚氰胺裝飾板壓接於基材之方法。該方法存在接著所需之時間較長之問題。
為了解決該問題,開發出一種於裝飾板之背面設置有黏著層之裝飾片材。例如,於專利文獻1中揭示有一種於裝飾板之背面設置有黏著劑層、及覆蓋其之脫模片材之裝飾片材。
[先前技術文獻] [專利文獻]
[專利文獻1]日本專利實開昭63-192025號公報。
先前之裝飾片材由於容易捲曲(彎曲),故而難以進行搬送或操作。於本發明之一態樣中,較佳為提供一種不易捲曲之裝飾片材。
本發明之一態樣係一種裝飾片材,其具備裝飾板、及設於上述裝飾板之一側之黏著劑層,且上述裝飾板具備:(A)裝飾層,其位於與上述一側相反之一側;(B)核心層,其含有包含纖維質基材之預浸體;及(C)平衡層,其係以吸熱性金屬氫氧化物混抄紙作為基材。
本發明之裝飾片材藉由具備(C)以吸熱性金屬氫氧化物混抄紙作為基材之平衡層,可抑制裝飾片材之捲曲。
1‧‧‧裝飾片材
3‧‧‧裝飾板
3A‧‧‧一側
3B‧‧‧與一側3A相反之一側
5‧‧‧黏著劑層
7‧‧‧裝飾層
9‧‧‧核心層
11‧‧‧平衡層
13‧‧‧第1平衡層
15‧‧‧第2平衡層
101‧‧‧裝飾片材
103‧‧‧裝飾板
103A‧‧‧一側
103B‧‧‧與一側103A相反之一側
201‧‧‧裝飾片材
203‧‧‧裝飾板
203A‧‧‧一側
203B‧‧‧與一側203A相反之一側
圖1係表示裝飾片材1之構成之側剖視圖。
圖2係表示裝飾片材101之構成之側剖視圖。
圖3係表示裝飾片材201之構成之側剖視圖。
說明本發明之實施形態。
1.裝飾層
裝飾層係裝飾板之一部分。裝飾層位於裝飾板之與設置有黏著劑層之側相反之一側。作為裝飾層,例如可列舉使樹脂液含浸於熱硬化性樹脂裝飾板用裝飾紙中並乾燥而成之樹脂含浸裝飾紙。
作為樹脂液,例如可列舉以熱硬化性樹脂作為主成分之樹脂液。作為熱硬化性樹脂,例如可列舉:胺基-甲醛樹脂、苯二酸二烯丙酯樹酯、不飽和聚酯樹脂或該等之混合樹脂等。
樹脂中較佳之樹脂係耐熱性、耐磨耗性等優異之胺基-甲醛樹脂,尤佳者係耐水性、耐熱性、耐磨耗性、耐化學品性、耐污染性優異之三聚氰胺-甲醛樹脂。
熱硬化性樹脂裝飾板用裝飾紙之基重例如可設為30~140g/m2。於使樹脂液含浸於熱硬化性樹脂裝飾板用裝飾紙中時,較佳為數1所定義之含浸率成為80~300%。
2.核心層
核心層係裝飾板之一部分。核心層含有包含纖維質基材之預浸體。預浸體係例如使包含作為黏合劑成分之熱塑性樹脂及吸熱性金屬氫氧化物之漿料含浸於纖維質基材中並乾燥而成之預浸體。核心層可包含1片預浸體,亦可包含2片以上之預浸體。
作為纖維質基材,可列舉有機纖維基材或無機纖維基材等。作為有機纖維基材,例如可列舉:包含聚乙烯、聚丙烯、維尼綸、聚氯乙烯、聚偏二氯乙烯、聚丙烯腈、聚醯胺、聚酯、聚氨脂、該等之改性物、以乙烯-乙酸乙烯酯共聚物等為代表之各種共聚物之纖維、該等之混合物等。
作為無機纖維基材,例如可列舉包含玻璃纖維、岩絨、碳纖維等無機纖維之不織布、織布等。無機纖維基材之基重較佳為10~200g/m2之範圍。於使用無機纖維基材之情形時,與使用有機纖維基材之情形相比,裝飾板及裝飾片材之不燃性進一步提昇。於無機纖維基材中,尤其於使用玻璃纖維不織布之情形時,無纖維方向地完成,故而可進一步抑制裝飾片材之捲曲。又,於使用玻璃纖維不織布之情形時,裝飾片材之耐火性、漿料之含浸性進一步提昇。
關於作為黏合劑成分之熱塑性樹脂,較佳地使用丙烯酸系樹脂乳液。尤其是若使用玻璃轉移溫度(Tg)為0℃以上之丙烯酸系樹脂乳液,則核心層之密接性或成形性提昇,故而更佳。
若使用丙烯酸系樹脂乳液中平均粒徑為150~300nm之丙烯酸系樹脂乳液,則可進一步提昇核心層之黏結力及裝飾板之彎曲加工性或平滑性,故而進而較佳。可推測平滑性提昇之原因在於丙烯酸系樹脂乳液為微粒子。再者,平均粒徑係使用雷射光繞射-散射式粒徑測定裝置(大塚電子 股份有限公司製造之ELS-8000),基於照射雷射時檢測出之散射光進行計算所獲得之值。
較佳為將漿料中之熱塑性樹脂之調配比率設為以固形物成分換算計3~17質量%。藉由為17質量%以下,裝飾板及裝飾片材之不燃性進一步提昇,並且於熱壓成形時不易引起合成樹脂滲出。又,藉由為3質量%以上,預浸體彼此之密接性進一步提昇,並且更容易控制漿料於纖維質基材中之含浸量。
核心層所包含之熱塑性樹脂之量(單位面積之核心層所包含之熱塑性樹脂之重量)較佳為10~100g/m2。藉由為100g/m2以下,裝飾板及裝飾片材之不燃性進一步提昇。又,藉由為100g/m2以下,於藉由熱壓成形而製造裝飾板之情形時,不易引起熱塑性樹脂滲出。
又,藉由核心層所包含之熱塑性樹脂之量為10g/m2以上,於由預浸體製造核心層之情形時,預浸體彼此之密接性進一步提昇。又,藉由為10g/m2以上,於使漿料含浸於纖維質基材中而製造核心層之情形時,可更容易地控制漿料之含浸量。
吸熱性金屬氫氧化物包含結晶水,於高溫時分解,釋放水。由於該反應為吸熱反應,故而吸熱性金屬氫氧化物有於燃燒時抑制溫度上升之效果,提昇本發明之裝飾板及裝飾片材之不燃性。作為吸熱性金屬氫氧化物,例如可列舉:氫氧化鋁、氫氧化鎂、氫氧化鈣等,尤佳地使用氫氧化鋁或氫氧化鎂。漿料中之吸熱性金屬氫氧化物之調配比率較佳為設為20~95質量%。於為該範圍內之情形時,核心層之密接性良好,裝飾板及裝飾片材之不燃性能提昇。
吸熱性金屬氫氧化物之平均粒徑例如可設為1~50μm之範圍內。其平均粒徑係根據藉由雷射繞射-散射法(Microtrac法)檢測出之粒度分佈(體積分佈)算出之算術平均 直徑。藉由吸熱性金屬氫氧化物之平均粒徑為上述範圍內,漿料中之吸熱性金屬氫氧化物之分散性提昇,漿料於纖維質基材中之含浸性提昇。又,最終裝飾板及裝飾片材之表面平滑。
核心層所包含之吸熱性金屬氫氧化物之量(單位面積之核心層所包含之吸熱性氫氧化物之重量)較佳為100~300g/m2之範圍內。藉由為該範圍內,於由預浸體製造核心層之情形時,可提高預浸體彼此之密接性,又,提昇裝飾板及裝飾片材之不燃性能。
上述漿料可另外包含吸熱性金屬氫氧化物以外之無機填充材料、矽烷偶合劑、阻燃劑等。作為無機填充材料,例如可列舉:碳酸鈣、碳酸鎂、碳酸鋅等碳酸鹽、二氧化矽、滑石、飛灰等。無機填充材料之平均粒徑例如可設為0.05~20μm之範圍內。於無機填充材料之平均粒徑為該範圍內之情形時,漿料於纖維質基材中之含浸適性進一步提昇。無機填充材料之平均粒徑係根據藉由雷射繞射-散射法(Microtrac法)檢測出之粒度分佈(體積分佈)算出之算術平均直徑。
於無機填充材料中,尤佳為碳酸鹽,尤其更佳為碳酸鈣。於使用碳酸鈣之情形時,裝飾板之製造步驟中之作業性、切削性進一步提昇。作為碳酸鈣,可使用重質碳酸鈣、輕質碳酸鈣(沈澱性碳酸鈣)等。碳酸鈣之平均粒徑例如可設為0.05~10μm、更佳為0.1~5μm。藉由設為0.05μm以上,不易於漿料中產生碳酸鈣之凝集,漿料於纖維質基材中之含浸性提昇。又,藉由設為10μm以下,裝飾板及裝飾片材之表面進一步變平滑,外觀提昇。
再者,輕質碳酸鈣意指焙燒石灰石並以化學方式製造之碳酸鈣,重質碳酸鈣意指將白色晶質石灰石進行乾式粉碎或濕式粉碎所製造之微粉碳酸鈣。
預浸體中所包含之吸熱性金屬氫氧化物於所有無機填充材料中所占之調配比率例如可設為30~100質量%。於為該範圍內之情形時,裝飾板及裝飾片材之不燃性及切削性進一步提昇。
上述漿料例如可包含矽烷偶合劑。於包含矽烷偶合劑之情形時,與不包含矽烷偶合劑之情形相比,於JIS K-6902「熱硬化性樹脂高壓裝飾板試驗方法」之耐煮沸性中,重量增加率進一步變小,又,預浸體與平衡層之密接性進一步提昇。矽烷偶合劑之調配比率較佳為設為以固形物成分換算計為漿料所有成分中之0.1~10質量%之範圍。
作為矽烷偶合劑,例如可列舉:3-(甲基)丙烯醯氧基丙基三甲氧基矽烷、3-(甲基)丙烯醯氧基丙基三乙氧基矽烷等含(甲基)丙烯醯氧基矽烷;乙烯基三甲氧基矽烷、乙烯基三乙氧基矽烷等含乙烯基矽烷;3-縮水甘油氧基丙基三甲氧基矽烷、3-縮水甘油氧基丙基甲基二甲氧基矽烷、3-縮水甘油氧基丙基三乙氧基矽烷等含環氧基矽烷;對苯乙烯基三甲氧基矽烷等含苯乙烯基矽烷;3-胺基丙基三甲氧基矽烷、3-胺基丙基三乙氧基矽烷、3-(2-胺基乙基)胺基丙基三甲氧基矽烷、3-苯基胺基丙基三甲氧基矽烷等含胺基矽烷;3-巰基丙基三甲氧基矽烷、3-巰基丙基三乙氧基矽烷、3-巰基丙基甲基二甲氧基矽烷等含巰基矽烷等。尤其是若使用含環氧基矽烷或含胺基矽烷,則預浸體中之交聯密度進一步提昇。
核心層所包含之矽烷偶合劑之量(單位面積之核心層所包含之矽烷偶合劑之重量)較佳為1~15g/m2之範圍內。藉由為該範圍內,由上述矽烷偶合劑所產生之效果進一步變明顯。
核心層例如可包含阻燃劑。作為阻燃劑,可較佳地使用磷系阻燃劑、氮系阻燃劑、磷氮系阻燃劑。作為磷系阻燃劑,可列舉:磷酸酯、含磷多元醇、含磷胺。作為氮系 阻燃劑,可列舉:三聚氰胺氰尿酸酯、三化合物、胍化合物。
磷氮系阻燃劑係兼具磷系阻燃劑及氮系阻燃劑之功能之化合物,於一分子中具有磷原子及氮原子。若磷氮系阻燃劑暴露於高溫,則磷會因較強之脫水作用而阻隔氧,氮會產生氨氣等而阻隔氧,故而預浸體之隔熱、阻燃效果提昇,預浸體不易燃燒。阻燃劑中之總氮含有比率較佳為1~50質量%。漿料中之阻燃劑之調配比率較佳為以固形物成分換算計為0.1~15質量%之範圍。
核心層中之阻燃劑之含量(單位面積之核心層所包含之阻燃劑之重量)較佳為1~100g/m2之範圍內。藉由為該範圍內,由上述阻燃劑所產生之效果進一步變明顯。
於使漿料含浸於纖維質基材中時,較佳為以數1所定義之含浸率成為500~1200%之範圍之方式進行含浸、乾燥。藉由含浸率為1200%以下,可抑制漿料固形物成分自預浸體脫落,容易處理預浸體。藉由含浸率為500%以上,不易產生預浸體之層間剝離。
3.平衡層
平衡層係裝飾板之一部分。平衡層包含吸熱性金屬氫氧化物混抄紙作為基材。平衡層係例如使以熱硬化性樹脂作為主成分之樹脂液含浸於基材中並乾燥而成之熱硬化性樹脂含浸紙。平衡層富有平衡性,可進一步抑制裝飾片材之捲曲。又,平衡層由於包含吸熱性金屬氫氧化物混抄紙作為基材,故而提昇裝飾片材之耐火性。
作為熱硬化性樹脂,例如可列舉:胺基-甲醛樹脂、酚-醛樹脂、乙烯酯樹脂等。胺基-甲醛樹脂可藉由三聚氰胺、脲、乙胍、苯胍等胺基化合物與甲醛之縮合而獲得。尤其就提昇裝飾片材之彎曲加工性之方面而言,較佳為乙烯 酯樹脂。
酚-醛樹脂可使酚類與醛類以相對於酚性羥基1莫耳,醛類為1~1.3莫耳之比率於鹼性觸媒下進行反應而獲得。作為酚類,例如可列舉:苯酚、甲酚、二甲苯酚、辛基苯酚、苯基苯酚、雙酚A、雙酚S、雙酚F等。又,作為醛類,例如可列舉:甲醛、多聚甲醛、乙二醛等。
又,酚-醛樹脂可為視需要藉由對磺醯胺、桐油、磷酸酯類、二醇類等促進塑化之改性劑改性而成之改性酚-醛樹脂。
作為鹼性觸媒,例如可列舉:鹼金屬之氧化物或氫氧化物、鹼土金屬之氧化物或氫氧化物。作為鹼金屬,例如可列舉:鈉、鉀等。作為鹼土金屬,例如可列舉:鎂、鈣等。作為其他鹼性觸媒,例如可列舉:及三乙胺、三乙醇胺等胺類、氨等。
乙烯酯樹脂係使用酯化觸媒使環氧樹脂與不飽和一元酸進行反應而獲得。作為環氧樹脂,例如可列舉:雙酚A系環氧樹脂、鹵化雙酚A系環氧樹脂、雙酚A與環氧烷之加成物之二縮水甘油醚、雙酚F系環氧樹脂、酚醛清漆系環氧樹脂、甲酚酚醛清漆系環氧樹脂等。作為環氧烷,例如可列舉:環氧乙烷、環氧丙烷等。
作為不飽和一元酸,例如可列舉:丙烯酸、甲基丙烯酸、丁烯酸、順丁烯二酸單甲酯、順丁烯二酸單丙酯、己二烯酸、順丁烯二酸單(2-乙基己基)酯等。作為與不飽和一元酸併用之多元酸,例如可列舉:丁二酸、順丁烯二酸、反丁烯二酸、伊康酸、鄰苯二甲酸、間苯二甲酸、對苯二甲酸、己二酸、壬二酸、1,12-十二烷二酸以及二聚酸等。
作為酯化觸媒,例如可列舉:二甲基苄基胺、三丁胺等三級胺類;三甲基苄基氯化銨等四級銨鹽;氯化鋰、氯化鉻等無機鹽;2-乙基-4-甲基咪唑等咪唑化合物;四甲基 氯化鏻、二乙基苯基丙基氯化鏻、三乙基苯基氯化鏻、苄基三乙基苯基氯化鏻、二苄基乙基甲基氯化鏻、苄基甲基二苯基氯化鏻、四苯基溴化鏻等鏻鹽;二級胺類;四丁基脲;三苯基膦;三甲苯基膦;三苯基銻等。
平衡層中之數1所定義之熱硬化性樹脂之含浸率較佳為5~50%。又,平衡層中之熱硬化性樹脂之含量(固形物成分換算)設為5.5~55g/m2即可。若含浸率或含量為該範圍內,則可進一步抑制裝飾片材之捲曲,可進一步提昇裝飾片材之可撓性,可提昇裝飾層與核心層之密接性,可降低總發熱量。
作為吸熱性金屬氫氧化物混抄紙,例如可列舉將包含紙漿及吸熱性金屬氫氧化物之漿料進行抄紙,並進行脫水、乾燥而成之混抄紙。該混抄紙具有自熄性,可抑制火蔓延。
於上述漿料中,除紙漿及吸熱性金屬氫氧化物以外,例如亦可添加凝集黏合劑、藥劑、有機纖維、無機纖維、定著劑等。作為抄紙中使用之抄紙機,例如可使用圓網式抄紙機、長網多筒型抄紙機、長網-圓網組合式抄紙機、傾斜抄紙機等。混抄紙之基重例如為60~200g/m2
作為紙漿,例如可列舉:木漿、木棉紙漿、植物纖維紙漿等天然紙漿。尤其是若使用以化學方式對闊葉樹漂白牛皮紙漿、針葉樹牛皮紙漿等纖維長度較短之木漿進行處理而成之化學紙漿,則混抄紙之紙力強度變高,混抄紙之含浸適性提昇,故而較佳。亦可併用闊葉樹漂白牛皮紙漿及針葉樹牛皮紙漿。又,紙漿可為漂白、不漂白中之任一種。
作為吸熱性金屬氫氧化物,可列舉:氫氧化鋁、氫氧化鎂、氫氧化鈣等,可尤佳地使用氫氧化鋁。吸熱性金屬氫氧化物相對於吸熱性金屬氫氧化物與紙漿之合計量之比率(以下記為混抄比率)較佳為40~95質量%,更佳為55~85 質量%。於混抄比率為40質量%以上之情形時,混抄紙之不燃性能進一步提高。於混抄比率為95質量%以下之情形時,混抄紙之紙力進一步提高。
4.黏著劑層
黏著劑層與裝飾板一起構成裝飾片材。黏著劑層設於裝飾板之一側。
黏著劑層例如可具備黏著劑及脫模紙。作為黏著劑,例如可列舉:含有丙烯酸系聚合物及黏著賦予劑之丙烯酸系黏著劑;或含有苯乙烯-丁二烯之溶劑橡膠系黏著劑。
作為構成丙烯酸系黏著劑中所含有之丙烯酸系聚合物之單體,例如可列舉:(甲基)丙烯酸甲酯、(甲基)丙烯酸乙酯、(甲基)丙烯酸正丙酯、(甲基)丙烯酸丁酯等(甲基)丙烯酸烷基酯等。此處,(甲基)丙烯酸意指甲基丙烯酸或丙烯酸。又,作為黏著賦予劑,例如可列舉:松脂系、萜烯系、酚系、薰草咔系等之黏著賦予劑。作為脫模紙,例如使用塗佈聚矽氧脫模劑進行加工而成之公知之脫模紙。黏著劑之厚度較佳為50~180μm。於黏著劑之厚度為該範圍內之情形時,黏著劑之黏著力進一步提高。
5.裝飾片材之製造方法
本發明之裝飾片材例如可藉由製造裝飾板,其次,於裝飾板之與裝飾層相反之一側之面壓接、層壓黏著劑層而製造。裝飾板之製造方法例如可積層裝飾層、平衡層及核心層,藉由平板加壓機、連續加壓機等加壓機進行熱壓成形而製造。
6.裝飾片材之層構成
裝飾片材之層構成例如可採用圖1所示者。裝飾片材1具備裝飾板3及黏著劑層5。黏著劑層5設於裝飾板3之一側3A。
裝飾板3具備裝飾層7、核心層9及平衡層11。裝飾層7位於裝飾板3之與一側3A相反之一側3B。核心層9位於裝飾板3之一側3A。平衡層11位於裝飾層7與核心層9之間。於圖1所示之積層結構之情形時,核心層9之質地不易表現於裝飾板3中之相反之一側3B的表面。其結果為裝飾板3之平滑性進一步提昇。
裝飾板3可進而具備其他層。其他層之位置例如可設為裝飾層7與平衡層11之間、平衡層11與核心層9之間、一側3A之表面。
裝飾片材之層構成例如可採用圖2所示者。裝飾片材101具備裝飾板103及黏著劑層5。黏著劑層5設於裝飾板103之一側103A。
裝飾板103具備裝飾層7、第1平衡層13、核心層9及第2平衡層15。第1平衡層13及第2平衡層15對應於平衡層。裝飾層7位於裝飾板103之與一側103A相反之一側103B。第1平衡層13位於核心層9與裝飾層7之間。第2平衡層15位於核心層9與黏著劑層5之間。於圖2所示之積層結構之情形時,裝飾片材101之處理性提昇,於操作時不易破損。
裝飾板103可進而具備其他層。其他層之位置例如可設為裝飾層7與第1平衡層13之間、第1平衡層13與核心層9之間、核心層9與第2平衡層15之間、一側103A之表面。
裝飾片材之層構成例如亦可採用圖3所示者。裝飾片材201具備裝飾板203及黏著劑層5。黏著劑層5設於裝飾板203之一側203A。
裝飾板203具備裝飾層7、核心層9及平衡層11。裝飾層7位於裝飾板203之與一側203A相反之一側203B。平衡層11位於裝飾板203之一側203A。核心層9位於裝飾 層7與平衡層11之間。
裝飾板203可進而具備其他層。其他層之位置例如可設為裝飾層7與核心層9之間、核心層9與平衡層11之間、一側203A之表面。
7.裝飾片材之厚度
裝飾片材之厚度較佳為0.3~2.0mm。於為該範圍內之情形時,可進一步抑制裝飾片材之捲曲。尤其於裝飾片材之厚度為0.3~0.8mm之情形時,常溫下之彎曲加工性亦優異。
以下,列舉實施例、比較例詳細地對本發明進行說明。
[實施例1]
(1)裝飾層之製造
以數1所定義之含浸率成為130%之方式使以三聚氰胺-甲醛樹脂作為主成分之樹脂液含浸於實施過木紋花紋之印刷之基重100g/m2之裝飾紙中並乾燥而製造三聚氰胺樹脂含浸圖案紙。將該三聚氰胺樹脂含浸圖案紙作為裝飾層。
(2)核心層之製造
混合以下之成分,製備漿料。再者,各成分之調配量為固形物成分換算值。
丙烯酸系樹脂乳液:32質量份
氫氧化鋁:300質量份
3-縮水甘油氧基丙基三甲氧基矽烷:2.7質量份
磷酸胍:29質量份
水:適量
此處,丙烯酸系樹脂乳液為黏合劑。丙烯酸系樹脂乳液係 Aica Kogyo股份有限公司製造之商品編號RAX-208。丙烯酸系樹脂乳液之玻璃轉移溫度(Tg)為60℃。丙烯酸系樹脂乳液係以丙烯酸2-乙基己酯及甲基丙烯酸甲酯作為主單體,平均粒徑為200nm。
氫氧化鋁為吸熱性金屬氫氧化物。氫氧化鋁之平均粒徑為8μm。3-縮水甘油氧基丙基三甲氧基矽烷為矽烷偶合劑。磷酸胍為阻燃劑。磷酸胍係三和化學股份有限公司製造之Apinonn 303,總氮含量為39%。
將漿料之組成示於表1。於表1中亦表示下述實施例2~27、比較例1~4中之漿料之組成。
以數1所定義之含浸率成為850%之方式使上述漿料含浸於基重35g/m2之玻璃纖維不織布中並乾燥而製造玻璃纖維布基材預浸體。玻璃纖維不織布對應於纖維質基材。將如上述般製造之玻璃纖維布基材預浸體作為核心層。
將核心層中之各成分之含量示於表2。於表2中亦表示下述實施例2~27、比較例1~4中之各成分之含量。
(3)平衡層之製造
以數1所定義之含浸率成為15%之方式,使以主骨架為雙酚系乙烯酯之乙烯酯樹脂作為主成分之樹脂液含浸於基重110g/m2之氫氧化鋁混抄紙(商品名:Sunwall,三善製紙公司製造,氫氧化鋁混抄比率69質量%)中並乾燥而製造乙烯酯樹脂含浸混抄紙。將該乙烯酯樹脂含浸混抄紙作為平衡層。
此處,以乙烯酯樹脂作為主成分之樹脂液之組成如下所述。
雙酚系乙烯酯:61~65質量%
甲基丙烯酸系單體:13~17質量%
丙二醇單甲醚乙酸酯:20質量%
丙烯酸:2質量%
再者,氫氧化鋁混抄紙為基材。丙二醇單甲醚乙酸酯為稀釋劑。
將平衡層之內容示於表3。於表3中亦表示下述實施例2~27、比較例1~4中之平衡層之內容。
表3中之「Al混抄紙」意指氫氧化鋁混抄紙。表3中之「基重」意指基材之基重。表3中之「含浸樹脂」意指含浸於基材中之樹脂之種類。表3中之「含浸量」意指平衡層所包含之每單位面積之樹脂之量。
(4)裝飾片材之製造
如圖1所示,依序積層核心層9、平衡層11及裝飾層7。核心層9包含1片玻璃纖維布基材預浸體。平衡層11包含1片乙烯酯樹脂含浸混抄紙。裝飾層7包含1片三聚氰胺樹脂含浸圖案紙。
其次,使用平板加壓機,於溫度132℃、壓力70kgf/cm2、成形時間64分鐘之條件下將核心層9、平衡層11及裝飾層7之積層體進行熱壓成形,獲得厚度0.43mm之裝飾板3。
其次,於裝飾板3之一側3A貼合丙烯酸系黏著片材(日榮化工股份有限公司製造),獲得裝飾片材1。丙烯酸系黏著片材對應於黏著劑層5。丙烯酸系黏著片材係於聚矽氧脫模紙之上塗佈有以丙烯酸系樹脂作為主成分之丙烯酸系黏著劑者,其厚度為136μm。
將實施例1中之層構成示於表4。於表4中亦表示下述實施例2~27、比較例1~4中之層構成。
表4之記載意味著以此處記載之順序,積層構成裝飾板之各層。表4中之「Ph核心紙」意指酚樹脂含浸核心紙。
將實施例1中之黏著劑層之內容示於表5。於表5中亦表示下述實施例2~27、比較例1~4中之黏著劑層之內容。
表5中之「種類」意指構成黏著劑層之樹脂之種類。表5中之「黏著總厚度」意指黏著劑層之厚度。
[實施例2]
實施例2由於基本構成與實施例1相同,故而以 下對不同點進行說明。於上述實施例1中,將厚度136μm之丙烯酸系黏著片材貼合於裝飾板,但於實施例2中,將厚度80μm之丙烯酸系黏著片材(日榮化工股份有限公司製造)貼合於裝飾板。
[實施例3]
實施例3由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將厚度136μm之丙烯酸系黏著片材貼合於裝飾板,但於實施例3中,將厚度50μm之丙烯酸系黏著片材(日榮化工股份有限公司製造)貼合於裝飾板。
[實施例4]
實施例4由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將厚度136μm之丙烯酸系黏著片材貼合於裝飾板,但於實施例4中,將厚度140μm之溶劑橡膠系(苯乙烯-異戊二烯嵌段共聚物)黏著片材(日榮化工股份有限公司製造)貼合於裝飾板。
[實施例5]
實施例5由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,如圖1所示,依序積層核心層9、平衡層11、裝飾層7,但於實施例5中,如圖3所示,依序積層平衡層11、核心層9、裝飾層7。
[實施例6]
實施例6由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,如圖1所示,依序積層核心層9、平衡層11、裝飾層7,但於實施例6中,如圖2所示,依序積層第2平衡層15、核心層9、第1平衡層13、裝飾層7。第2平衡層15及第1平衡層13係與實施例1中之平衡層11相同者。
[實施例7]
實施例7由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之丙烯酸系樹脂乳液的調配量設為32質量份,但於實施例7中,將核心層之製造中所使用之漿料中之丙烯酸系樹脂乳液的調配量設為17質量份。
[實施例8]
實施例8由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之丙烯酸系樹脂乳液的調配量設為32質量份,但於實施例8中,將核心層之製造中所使用之漿料中之丙烯酸系樹脂乳液的調配量設為58質量份。
[實施例9]
實施例9由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之丙烯酸系樹脂乳液設為Aica Kogyo股份有限公司製造之商品編號RAX-208,但於實施例9中,將核心層之製造中所使用之丙烯酸系樹脂乳液設為RAX-208E。RAX-208E係Aica Kogyo股份有限公司製造之丙烯酸系樹脂乳液。RAX-208E之玻璃轉移溫度(Tg)為0℃。RAX-208E之主單體為丙烯酸2-乙基己酯及甲基丙烯酸甲酯。
[實施例10]
實施例10由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之丙烯酸系樹脂乳液設為Aica Kogyo股份有限公司製造之商品編號RAX-208,但於實施例10中,將核心層之製造中所使用之丙烯酸系樹脂乳液設為RAX-208D。RAX-208D係Aica Kogyo股份有限公司製造之丙烯酸系樹脂乳液。RAX-208D之玻璃轉移溫度(Tg)為30℃。RAX-208D之主單體為丙烯酸2-乙基己酯及甲基丙烯酸甲酯。
[實施例11]
實施例11由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之氫氧化鋁的調配量設為300質量份,但於實施例11中,將核心層之製造中所使用之漿料中之氫氧化鋁的調配量設為600質量份。
[實施例12]
實施例12由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之氫氧化鋁的調配量設為300質量份,但於實施例12中,將核心層之製造中所使用之漿料中之氫氧化鋁的調配量設為100質量份。又,於實施例12中,於核心層之製造中所使用之漿料中進而調配平均粒徑1μm之重質碳酸鈣100質量份。平均粒徑1μm之重質碳酸鈣係吸熱性金屬氫氧化物以外之無機填充材料。
[實施例13]
實施例13由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為2.7質量份,但於實施例13中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為1.8質量份。
[實施例14]
實施例14由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為2.7質量份,但於實施例14中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為3.5質量份。
[實施例15]
實施例15由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為2.7質量份,但於實施例15中,將核心層之製造中所使用之漿料中之3-縮水甘油氧基丙基三甲氧基矽烷的調配量設為18質量份。
[實施例16]
實施例16由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之磷酸胍的調配量設為29質量份,但於實施例16中,將核心層之製造中所使用之漿料中之磷酸胍的調配量設為3.5質量份。
[實施例17]
實施例17由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將核心層之製造中所使用之漿料中之磷酸胍的調配量設為29質量份,但於實施例17中,將核心層之製造中所使用之漿料中之磷酸胍的調配量設為35質量份。
[實施例18]
實施例18由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於核心層之製造中所使用之漿料中調配2.7質量份之3-縮水甘油氧基丙基三甲氧基矽烷,但於實施例18中,於核心層之製造中所使用之漿料中調配2.7質量份之3-(2-胺基乙基)胺基丙基三甲氧基矽烷以代替2.7質量份之3-縮水甘油氧基丙基三甲氧基矽烷。
[實施例19]
實施例19由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於核心層之製 造中所使用之漿料中調配29質量份之磷酸胍,但於實施例19中,於核心層之製造中所使用之漿料中調配29質量份之氮系阻燃劑以代替29質量份之磷酸胍。氮系阻燃劑係三和化學股份有限公司製造之商品名Apinonn-901。氮系阻燃劑係將主成分設為硫酸三聚氰胺,總氮48%,總硫9%。
[實施例20]
實施例20由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將平衡層之製造中之乙烯酯樹脂之含浸率設為15%,但於實施例20中,將平衡層之製造中之乙烯酯樹脂之含浸率設為5%。
[實施例21]
實施例21由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,將平衡層之製造中之乙烯酯樹脂之含浸率設為15%,但於實施例21中,將平衡層之製造中之乙烯酯樹脂之含浸率設為50%。
[實施例22]
實施例22由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用基重110g/m2之氫氧化鋁混抄紙,但於實施例22中,使用基重180g/m2之氫氧化鋁混抄紙。該混抄紙係三善製紙公司製造之商品名Sunwall。該混抄紙中之氫氧化鋁混抄比率為69質量%。
[實施例23]
實施例23由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用基重110g/m2之氫氧化鋁混抄紙,但於實施例23中,使用基重80g/m2之氫氧化鋁混抄紙。該混抄紙係阿波製紙公司製造。該混抄紙中之氫氧化鋁混抄比率為69質量%。
[實施例24]
實施例24由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用氫氧化鋁之混抄比率為69質量%之氫氧化鋁混抄紙,但於實施例24中,使用氫氧化鋁之混抄比率為60質量%之氫氧化鋁混抄紙。
[實施例25]
實施例25由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用氫氧化鋁之混抄比率為69質量%之氫氧化鋁混抄紙,但於實施例25中,使用氫氧化鋁之混抄比率為80質量%之氫氧化鋁混抄紙。
[實施例26]
實施例26由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用以乙烯酯樹脂作為主成分之樹脂液,但於實施例26中,使用氫氧化鋁之混抄比率為85質量%之氫氧化鋁混抄紙,且於平衡層之製造中使用以三聚氰胺樹脂作為主成分之樹脂液。
[實施例27]
實施例27由於基本構成與實施例1相同,故而以下對不同點進行說明。於上述實施例1中,於平衡層之製造中使用以乙烯酯樹脂作為主成分之樹脂液,但於實施例27中,使用氫氧化鋁之混抄比率為85質量%之氫氧化鋁混抄紙,且於平衡層之製造中使用以酚樹脂作為主成分之樹脂液。
(比較例1)
比較例1就不具備平衡層之方面而言與實施例1不同。
(比較例2)
積層1片三聚氰胺樹脂含浸圖案紙,進而積層2片使酚樹脂含浸於牛皮紙中並乾燥而成之酚樹脂含浸核心紙,製造裝 飾板。其次,於該裝飾板之一側,以與實施例1相同之方式貼合丙烯酸系黏著片材(日榮化工股份有限公司製造),獲得裝飾片材。
(比較例3)
雖具有與實施例1基本上相同之構成,但使用含浸率15%之乙烯酯樹脂含浸牛皮紙以代替乙烯酯樹脂含浸混抄紙作為平衡層。該含浸率15%之乙烯酯樹脂含浸牛皮紙係以數1所規定之含浸率成為15%之方式使乙烯酯樹脂含浸於基重180g/m2之牛皮紙中並乾燥而成者。
(比較例4)
雖具有與實施例1基本上相同之構成,但使用含浸率15%之乙烯酯樹脂含浸牛皮紙以代替乙烯酯樹脂含浸混抄紙作為平衡層。該含浸率15%之乙烯酯樹脂含浸牛皮紙係以數1所規定之含浸率成為15%之方式使乙烯酯樹脂含浸於基重110g/m2之牛皮紙中並乾燥而成者
<裝飾板及裝飾片材之評價>
對各實施例及各比較例之裝飾板及裝飾片材進行以下之評價。
(1)裝飾板之厚度
藉由測微計測定裝飾板之厚度。
(2)裝飾板之彎曲加工性
自裝飾板切割出150mm寬度之樣本。然後,與樣本之表面相隔特定之距離配置棒狀加熱器。此時,使棒狀加熱器之軸向與裝飾板之纖維方向平行。於該狀態下,將加熱器之溫度設為700℃,將樣本之表面溫度設為170℃。
其次,將以面成為水平之方式保持之樣本之中央部分自上方壓抵於垂直地立設之板狀模具的上端。此時,使裝飾板之纖維方向與板狀模具之上端之長邊方向平行。模具 之上端之剖面形狀係具有特定之曲率半徑之圓弧形狀。
其次,自將樣本如上述般壓抵於模具之狀態,將樣本之兩端進而壓低固定量,使樣本彎曲,確認樣本是否產生龜裂。
將模具之上端之曲率半徑最初設為12R,其次設為9R,最後設為6R,反覆進行如上述般使樣本彎曲之試驗。將樣本不會產生龜裂之最小之曲率半徑設為彎曲加工性之評價值。
(3)裝飾板之總發熱量
藉由依循ISO5660之圓錐量熱儀對裝飾板進行20分鐘試驗之發熱性試驗。
(4)裝飾片材之黏著力
自裝飾片材切割出300mm×150mm之大小之片段。貼合片段中之黏著劑層與厚度2mm之鋁板。進而,於該等之上,使重量2Kg之手壓輥往復2次。將藉由以上之步驟所製造者設為試樣。使用接著劑(氰基丙烯酸酯)將試樣之裝飾層側之面貼合於40mm×40mm之模具。
於溫度23℃、相對濕度50%之條件下固化1天後,使用建研式接著力試驗機(Oxjack股份有限公司製造),對試樣施加鋁板與黏著劑層分離之方向之力,測定拉伸強度。將拉伸強度之值設為黏著力之測定值。
(5)裝飾片材之彎曲加工性
自裝飾片材切割出150mm寬度之樣本。使用該樣本,藉由與上述「(2)裝飾板之彎曲加工性」相同之方法,測定裝飾片材之彎曲加工性。
(6)裝飾片材之總發熱量
藉由依循ISO5660之圓錐量熱儀對裝飾片材進行20分鐘試驗之發熱性試驗。
(7)裝飾片材之捲曲
自裝飾片材切割出50mm×300mm之樣本。構成裝飾片材之裝飾板之纖維方向與該樣本之短邊方向平行。將該樣本於室溫40℃、濕度30%之環境下固化24小時。其後,將樣本置於水平面上,將樣本之長邊方向上之一端壓抵於水平面。然後,測定樣本之長邊方向上之相反側之端部與水平面的距離。將該距離設為翹曲高度。翹曲高度反映樣本之捲曲之大小。
(8)裝飾片材之常溫彎曲性能
自裝飾片材切割出50mm×150mm之樣本。構成裝飾片材之裝飾板之纖維方向與該樣本之短邊方向平行。使用該樣本,藉由與上述「(2)裝飾板之彎曲加工性」基本上相同之方法,測定裝飾片材之彎曲加工性。其中,測定時之樣本之溫度設為常溫。
將評價結果示於表6。表6中之R之單位為mm。
實施例1、5、6、26、27中之捲曲與比較例1~4中之捲曲相比明顯較小。又,實施例1、5、6、26、27中之常溫彎曲性能與比較例2~4相比明顯優異。

Claims (11)

  1. 一種裝飾片材,其具備裝飾板、及設於該裝飾板一側之黏著劑層,且上述裝飾板具備:(A)裝飾層,其位於與上述一側相反之一側;(B)核心層,其含有包含纖維質基材之預浸體;及(C)平衡層,其係以吸熱性金屬氫氧化物混抄紙作為基材,其中上述吸熱性金屬氫氧化物混抄紙係藉由混合包含吸熱性金屬氫氧化物的漿料而形成,並且上述(C)位於上述(A)與上述(B)之間。
  2. 如請求項1之裝飾片材,其中,上述(C)包含熱硬化性樹脂。
  3. 如請求項2之裝飾片材,其中,上述(C)中之上述熱硬化性樹脂之含量為5.5~55g/m2
  4. 如請求項2之裝飾片材,其中,上述(C)所包含之上述熱硬化性樹脂為乙烯酯樹脂。
  5. 如請求項1之裝飾片材,其中,上述預浸體包含丙烯酸系樹脂乳液。
  6. 如請求項1之裝飾片材,其中,上述(B)包含阻燃劑。
  7. 如請求項6之裝飾片材,其中,上述(B)中之上述阻燃劑之含量為1~100g/m2
  8. 如請求項6之裝飾片材,其中,上述(B)中所包含之上述阻燃劑之至少一部分為氮系阻燃劑或磷氮系阻燃劑。
  9. 如請求項8之裝飾片材,其中,上述磷氮系阻燃劑中之氮含量為1~50質量%。
  10. 如請求項1至9中任一項之裝飾片材,其中,上述裝飾片材之厚度為0.3~2.0mm。
  11. 如請求項1之裝飾片材,其中吸熱性金屬氫氧化物在上述吸熱性金屬氫氧化物混抄紙的混合比例為40~95wt%。
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