TWI732077B - 混合式著色金屬顏料 - Google Patents

混合式著色金屬顏料 Download PDF

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TWI732077B
TWI732077B TW106143741A TW106143741A TWI732077B TW I732077 B TWI732077 B TW I732077B TW 106143741 A TW106143741 A TW 106143741A TW 106143741 A TW106143741 A TW 106143741A TW I732077 B TWI732077 B TW I732077B
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film structure
mixed layer
layer
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伏拉迪米爾 瑞克沙
喬伊 賈爾細亞
保羅 克爾曼恩
艾爾伯特歐 阿爾吉特雅
卡羅 賽瑞維爾
羅伯特 歐伯爾特
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美商菲爾薇解析公司
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Abstract

本發明關於一種薄膜結構,其包括反射層;及包括有機著色材料及有機填料及無機填料中之至少一者的混合層;其中該有機填料或無機填料中之至少一者的濃度在約3wt.%至約30wt.%範圍內。本發明亦揭示一種製造薄膜結構的方法。

Description

混合式著色金屬顏料
本發明一般關於薄膜結構,諸如包括反射層及具有有機著色材料及有機填料或無機填料中之至少一者的混合層的顏料。本發明亦揭示製造該薄膜結構(諸如顏料)的方法。
最簡單形式的著色金屬顏料是由著色金屬所製成。此等顏料中的薄片已塗有著色透明或半透明低折射率材料或高折射率材料。顏色效應可來自入射光的反射、吸收及干涉的組合。干涉顏料中的干涉色是藉由在具有透明介電質及半透明金屬吸收劑的費比-皮洛特(Fabry-Perot)結構的鋁薄片表面上形成而產生。
製造著色金屬顏料的方法的本質不同。在一種方法中,片狀鋁顏料的顏色是藉由用水對懸浮鋁薄片進行濕氧化而在其表面上形成氧化鋁層所獲得,其中顏料的顏色由氧化物的厚度所控制。在另一種方法中,藉由許多濕化學方法(諸如有機金屬酯化合物的水解)中之一者,或藉由使一或多種所欲的金屬氧化物的一或多種前驅物及酸性催化劑經受微波輻射而形成金屬氧化物層,或藉由流體化床CVD而由金屬氧化物層塗佈鋁薄片。顏料亦藉由來自矽酸四乙酯的二氧化矽與分散著色劑一起進行溶膠-凝膠沉澱而著色。真空沉積技術已用於製造基於費比-皮洛特結構的著色金屬顏料。例如,當間隔層由具有高折射率(n>2)的材料所製成時產生具有飽和顏色的著色顏料。當介電層具有低 折射率(n<1.6)時製造變色干涉顏料。
在一態樣中,本發明揭示一種薄膜結構,其包括反射層;及包括有機著色材料及有機填料及無機填料中之至少一者的混合層;其中有機填料或無機填料中之至少一者的濃度在約3wt.%至約30wt.%範圍內。
在另一態樣中,本發明揭示一種製造薄膜結構的方法,其包含:提供具有釋放層的基板;藉由真空沉積在釋放層上沉積第一混合層;在第一混合層上沉積反射層;及在反射層上沉積第二第一混合層以形成薄膜結構;其中第一及第二混合層包含有機著色材料及有機填料或無機填料中之至少一者;且其中至少一種有機填料及無機填料的濃度在約3wt.%至約30wt.%範圍內。
各種具體實例的額外特徵及優點將在以下的描述中部分地闡述,並且自描述中部分地會為顯而易見,或可藉由實踐各種具體實例而得知。各種具體實例的目的及其他優點將藉助於在本文描述中特別指出的元件及組合來實現及獲得。
1:反射層
2:混合層
2a:混合層
2b:混合層
3:釋放層
4:基板
5:薄膜結構
根據實施方式及附圖,可更全面地理解本發明的多個態樣及具體實例,其中:圖1為根據本發明實例的薄膜結構的截面圖;圖2A為根據本發明實例的在自具有釋放層的基板被釋放之前的薄膜結構的截面圖;圖2B為根據本發明實例的在自基板被釋放之前的薄膜結構的截 面圖;圖3為根據本發明實例的薄膜結構的反射率圖;圖4為根據本發明實例的薄膜結構的L*a*b*色空間;圖5為根據本發明另一實例的薄膜結構的反射率圖;及圖6為根據本發明另一實例的薄膜結構的L*a*b*色空間。
在整個說明書及圖式中,相同的符號數字表示相同的元件。
應當理解,前面的發明內容及下面的實施方式僅為示例性及說明性的,並且旨在提供對本發明各種具體實例的解釋。
參照圖1及圖2,在其廣泛及變化的具體實例中,本文所揭示的為包含反射層1及混合層2A、2B的薄膜結構5。混合層2A、2B可包含有機著色材料及有機填料或無機填料中之至少一者。
薄膜結構5的總厚度可小於10微米,諸如例如小於約5微米。在一態樣中,薄膜結構5的總厚度可在約0.01微米至約10微米範圍內,諸如約100nm至約5000nm,例如約100nm至約4000nm。
對於圖1-2所示的各個實例,用於反射層1的材料可包括可致使反射層1不透明的任何材料。在一態樣中,該材料可為金屬及/或金屬合金。在一個實例中,用於反射層1的材料可包括具有反射特性的任何材料。反射材料的實例可為鋁,其具有良好的反射特性,價格便宜並且容易形成或沉積為薄層。然而,其他反射材料亦可用來代替鋁。例如,可使用鋁、鋅、鋼、銅、銀、金、鉑、鈀、鎳、鈷、鈮、鉻、錫以及此等或其他金屬的組合或合金(諸如青銅、黃銅及不銹鋼)作為反射材料。在一態樣中,用於反射層1的材料可為白色或淺色金屬。其他有用的反射材料包括但不限於過渡金屬及鑭系金屬及 其組合。
反射層1的厚度可在約40nm至約150nm範圍內,儘管該範圍不應被視為限制性的。例如,對於諸如鋁的材料可選擇下限為40nm,使得在約550nm的波長下鋁具有約0.5的最小光密度。其他反射材料可調整更高或更低的最小厚度,以獲得足夠的光密度或實現所欲的效果。取決於所欲的效果及使用的材料,約150nm的上限亦可更高或更低。
可將反射層1微結構化以提供光的繞射性質。在一態樣中,只要反射層1為不透明的,反射層1可由任何材料製成並且具有任何厚度。
在一態樣中,反射層1的厚度可在約10nm至約160nm範圍內,例如約15nm至約150nm範圍內,約20nm至約140nm範圍內,約25nm至約130nm範圍內,約30nm至約120nm範圍內,約40nm至約110nm範圍內,或約50nm至約100nm範圍內,諸如約60nm至約90nm範圍內或約70nm至約80nm範圍內。
用於薄膜結構5中的混合層2可包括有機著色材料及有機填料或無機填料中之至少一者。混合層2可為多於一層,諸如第一混合層2A、第二混合層2B、第三混合層2C(圖中未示出)等。在一態樣中,混合層2可存在於反射層1的相對側上。在另一態樣中,多於一個混合層2可存在於反射層1的各側上。例如,反射層1的一側可包括多達三(3)個混合物層2A、2B、2C以及反射層1的第二側可包括多達三(3)個混合層,其可與反射層1的第一側上的混合層相同,或其可為不同的混合層,諸如混合層2D、2E、2F。
存在於薄膜結構5中的各個混合層2可彼此相同或不同。在一態樣中,第一混合層2A可具有與第二混合層2B相同的組成。在另一態樣中,第一混合層2A可具有與第二混合層2B相同的厚度。或者,各個混合層2可為不同的。第一混合層2A可具有與第二混合層2B不同的組成。第一混合層2A可具有 與第二混合層2B不同的厚度。各層可變化,例如相同的組成、不同的厚度或不同的組成及相同的厚度。
可選擇混合層2的組成以實現某種顏色或色調。具體來說,藉由選擇存在於各個混合層2中的不同有機著色材料,然後組合層可實現某種顏色或色調。例如,第一混合層2A可包含黃色的有機著色材料。存在於第一混合層2A頂部上的第二混合層2B可包含藍色的有機著色材料。所實現的結果顏色或色調因此可為綠色的。各種混合層中的有機著色材料的類似組合可致使其他顏色組合,諸如紅色混合層2B上的黃色混合層2A可致使總體呈橙色顏色或色調。
或者,薄膜結構5可在反射層1的各側上具有單個混合層2,諸如綠色混合層或橙色混合層。薄膜結構5可包括在反射層1第一側上的紅色混合層2A及在反射層1第二側上的藍色混合層2B。
混合層2的厚度可為約10nm至約5000nm,諸如約20nm至約4500nm,例如約30nm至約4000nm。在一態樣中,混合層2小於約300nm,使得光不散射。
相對於混合層2的總重量,有機著色材料可以小於約100wt.%之量存在於混合層2中。預期若混合層2中存在100wt.%的有機著色材料,則混合層2可自反射層1分層。
有機著色材料可包含任何著色材料,諸如有機顏料。非限制性有機顏料包括例如苝(perylene)、苝酮(perinone)、喹吖酮(quinacridone)、喹吖啶酮醌(quinacridonequinone)、蒽嘧啶(anthrapyrimidine)、蒽醌(anthraquinone)、蒽嵌蒽醌(anthanthrone)、苯并咪唑酮(benzimidazolone)、雙偶氮縮合(disazo condensation)、偶氮(azo)、偶氮甲鹼(azomethine)、喹啉黃(quinophthalone)、陰丹士林(indanthrone)、酞青素(phthalocyanine)、三芳基碳鎓 (triarylcarbonium)、雙
Figure 106143741-A0202-12-0006-8
(dioxazine)、胺基蒽醌(aminoanthraquinone)、異吲哚啉(isoindoline)、二酮吡咯並吡咯(diketopyrrolopyrrole)、硫靛(thioindigo)、噻
Figure 106143741-A0202-12-0006-9
靛藍(thiazineindigo)、異吲哚啉(isoindoline)、異吲哚啉酮(isoindolinone)、皮蒽酮(pyranthrone)、異紫蒽酮(isoviolanthrone)或其混合物。
用作有機著色材料的有機顏料的其他非限制性實例包括例如C.I.顏料紅123(C.I.編號71 145)、C.I.顏料紅149(C.I.編號71 137)、C.I.顏料紅178(C.I.編號71 155)、C.I.顏料紅179(C.I.編號71 130)、C.I.顏料紅190(C.I.71 140)、C.I.顏料紅224(C.I.編號71 127)、C.I.顏料紫29(C.I.編號71 129)、C.I.顏料橙43(C.I.編號71 105)、C.I.顏料紅194(C.I.編號71 100)、C.I.顏料紫19(C.I.編號73 900)、C.I.顏料紅122(C.I.編號73 915)、C.I.顏料紅192、C.I.顏料紅202(C.I.編號73 907)、C.I.顏料紅207、C.I.顏料紅209(C.I.編號73 905)、C.I.顏料紅206(C.I.編號73 900/73 920)、C.I.顏料橙48(C.I.編號73 900/73 920)、C.I.顏料橙49(C.I.編號73 900/73 920)、C.I.顏料橙42、C.I.顏料黃147、C.I.顏料紅168(C.I.編號59 300)、C.I.顏料黃120(C.I.編號11 783)、C.I.顏料黃151(C.I.編號13 980)、C.I.顏料棕25(C.I.編號12 510)、C.I.顏料紫32(C.I.編號12 517)、C.I.顏料橙64;C.I.顏料棕23(C.I.編號20 060)、C.I.顏料紅166(C.I.編號20 730)、C.I.顏料紅170(C.I.編號12 475)、C.I.顏料橙38(C.I.編號12 367)、C.I.顏料紅188(C.I.編號12 467)、C.I.顏料紅187(C.I.編號12 486)、C.I.顏料橙34(C.I.編號21 115)、C.I.顏料橙13(C.I.編號21 110)、C.I.顏料紅9(C.I.編號12 460)、C.I.顏料紅2(C.I.編號12 310)、C.I.顏料紅112(C.I.編號12 370)、C.I.顏料紅7(C.I.編號12 420)、C.I.顏料紅210(C.I.編號12 477)、C.I.顏料紅12(C.I.編號12 385)、C.I.顏料藍60(C.I.編號69 800)、C.I.顏料綠7(C.I.編號74 260)、C.I.顏料綠36(C.I. 編號74 265);C.I.顏料藍15:1、15:2、15:3、15:4、15:6及15(C.I.編號74160);C.I.顏料藍56(C.I.編號42 800)、C.I.顏料藍61(C.I.編號42 765:1)、C.I.顏料紫23(C.I.編號51 319)、C.I.顏料紫37(C.I.編號51 345)、C.I.顏料紅177(C.I.編號65 300)、C.I.顏料紅254(C.I.編號56 110)、C.I.顏料紅255(C.I.編號56 1050)、C.I.顏料紅264、C.I.顏料紅270、C.I.顏料紅272(C.I.編號56 1150)、C.I.顏料紅71、C.I.顏料橙73、C.I.顏料紅88(C.I.編號73 312)、C.I.顏料黃175(C.I.編號11 784)、C.I.顏料黃154(C.I.編號11 781)、C.I.顏料黃83(C.I.編號21 108)、C.I.顏料黃180(C.I.編號21 290)、C.I.顏料黃181(C.I.編號11 777)、C.I.顏料黃74(C.I.編號11 741)、C.I.顏料黃213、C.I.顏料橙36(C.I.編號11 780)、C.I.顏料橙62(C.I.編號11 775)、C.I.顏料橙72、C.I.顏料紅48:2/3/4(C.I.編號15 865:2/3/4)、C.I.顏料紅53:1(C.I.編號15 585:1)、C.I.顏料紅208(C.I.編號12 514)、C.I.顏料紅185(C.I.編號12 516)、C.I.顏料紅247(C.I.編號15 915)。
混合層2可包括有機填料或無機填料中之至少一者。至少一種有機填料或無機填料可以約3wt.%至約30wt.%範圍內之量,例如相對於混合層2的總重量約3wt.%至約30wt.%範圍內之量存在於混合層2中。至少一種有機填料或無機填料之量可沿著梯度變化,以實現為薄膜結構提供所欲的顏色的濃縮顏色的著色。在一態樣中,有機填料或無機填料中之至少一者可以諸如沿著混合層2的長度而變化的量或濃度存在於混合層2中。例如,濃度可沿著混合層的長度逐漸減少,使得混合層的第一端可具有較高濃度的例如有機填料,且混合層的第二端可具有較低濃度的例如有機填料。另外,混合層的第一端可具有低濃度的例如無機填料,且混合層的第二端可具有高濃度的例如無機填料。若有機填料或無機填料互相下游沉積,則會發生此態樣。
在另一態樣中,至少一種有機填料或無機填料可均勻分散於混 合層2中。例如,至少一種有機填料或無機填料可預先混合且因此與有機著色材料共沉積。
在又另一態樣中,至少一種有機填料或無機填料可以提高黏合性之量存在於混合層2中。例如,在將展現良好黏合性的填料沉積之後,可沉積展現黏合特性差的填料。以此種方式,可使用具有良好黏合性的填料來更大程度地增加具有黏合性差的填料的黏合性。
用於混合層2中的有機填料或無機填料可由任何材料製成。合適材料的非限制性實例包括氟化鎂、一氧化矽、二氧化矽、氧化鋁、氟化鋁、二氧化鈦、氮化鋁、氮化硼、碳化硼、氧化鎢、氟化鈰、氟化鑭、氟化釹、氟化釤、氟化鋇、氟化鈣、氟化鋰、碳化鎢、碳化鈦、氮化鈦、氮化矽、硫化鋅、玻璃薄片、類鑽石碳及其組合。
有機填料或無機填料可由具有約1.3至約2.3範圍內的折射率的材料製成。在一態樣中,有機填料或無機填料可為具有小於約1.65的低折射率的材料。在另一態樣中,有機填料或無機填料可為具有大於約2.2的高折射率的材料。
製造薄膜結構5的方法可包括提供具有釋放層3的基板4。基板4可由任何材料製成。例如,1密耳的聚酯可用作基板4;然而,可使用其他有機腹板(organic web)及其他厚度。有機腹板可包括聚對苯二甲酸乙二酯、聚乙烯、定向聚丙烯、聚碳酸酯、聚乙烯丁醛、聚己二烯及聚醯亞胺。或者,可使用不需要透明度的腹板。基板4的厚度可在約0.5密耳至約5密耳範圍內。
如圖2B所示,該方法可包括將第一混合層2a沉積至基板4上。如圖2A所示,基板4可包括釋放層3。在一態樣中,有機著色材料可與有機填料或無機填料中之至少一者共沉積以沉積第一混合層。真空沉積可為任何已知的真空沉積技術,諸如物理氣相沉積、化學氣相沉積、流體化床化學氣相沉積 等。然後可使用不會囊封反射層1的任何沉積技術將反射層1沉積至第一混合層2A上。例如,可藉由真空沉積來沉積反射層1。然後可將第二混合層2B沉積至反射層1上以形成薄膜結構5。可使用真空沉積技術來沉積第二混合層2B。
然後,可將整個結構,即基板4的釋放層3上的薄膜結構5,浸入溶劑(諸如有機溶劑)中。有機溶劑可為任何含碳化合物的溶劑,諸如醯胺、碸、環丁烯碸(sulfolene)、硒碸(selenone)及飽和醇。非限制性有機溶劑包括氯化甲烷、乙酸乙酯、二甲亞碸、四氫呋喃、二甲基甲醯胺、乙醇、環丁碸(四氫噻吩-1,1-二氧化物)、3-甲基環丁碸、正丙基碸、正丁基碸、環丁烯碸(2,5-二氫噻吩-1,1-二氧化物)、3-甲基環丁烯碸、諸如1-(2-羥基乙基)-2-吡咯烷酮(HEP)、二甲基哌啶酮(DMPD)、N-甲基吡咯烷酮(NMP)及二甲基乙醯胺(DMAc)的醯胺、二甲基甲醯胺(DMF)、丙醇、丁醇、己醇、乙二醇、丙二醇、甘油及六氟異丙醇。有機溶劑可溶解釋放層,有效地將薄膜結構5自基板4分離。
經釋放的薄膜結構5可使用標準確定尺寸技術(諸如機械研磨,例如藉由球磨等)來過濾及確定尺寸。薄膜結構5可經確定尺寸以實現平均粒度為約5至約100微米範圍,例如約7至約50微米範圍,進一步的實例為約9至約40微米範圍,並且作為另外的實例為約10至約20微米範圍。
薄膜結構可具有額外的層,諸如保護層、鈍化層、介電質層。
薄膜結構5可為顏料。顏料亦可包括液體介質。
薄膜結構5可與光檢測及雷達(LIDAR)技術一起使用。
實施例
實施例1-將氟化鎂及3,6-雙(4-氯苯基)-2,5-二氫吡咯並[3,4-c]吡咯-1,4-二酮(顏料紅254,CAS編號84632-65-5)同時在真空中蒸發並且作為第一混合層2B沉積至聚酯基板4的釋放層3上,直到第一混合層2B的厚度達到約 300nm(如圖2所示)。將該製程在此時停止,並且將80nm厚層的反射層(銅)1沉積在第一混合層2B的頂部上。將第二混合層2A沉積在反射層(銅)1的頂部上。聚酯基板4塗佈有溶劑敏感性釋放層3。將第一混合層2B塗佈在釋放層3的頂側上。將反射層1然後第二混合層2A沉積在釋放層3的頂部上。完成真空沉積後,將整個結構浸入有機溶劑中。將釋放層3溶解並且將三層薄膜結構5過濾及機械研磨直到小片的平均尺寸在約10至約20微米範圍內。薄膜結構5的總厚度為670nm。混合層2A、2B中的氟化鎂(MgF2)濃度為約26.5wt.%。圖3示出了薄膜結構5的反射率。顏料的顏色為紅色。圖4中L*a*b*色空間示出了顏料的顏色值。
實施例2-將喹吖酮紫(顏料紫19,CAS編號:1047-16-1)與MgF2共沉積為混合層2A、2B,其結構類似於圖2中的結構,鋁作為反射層1。薄膜結構5的總厚度為721nm,MgF2濃度為16wt.%。圖5示出了薄膜結構5的反射率。顏料的顏色為紫色。圖6中L*a*b*色空間示出了顏料的顏色值。
自前面的描述中,發明所屬技術領域中具有通常知識者可理解本發明可以各種形式來實現。因此,雖然已結合特定具體實例及其實施例描述了此等教示,但本發明的真實範圍不應如此受限。在不脫離本文教示範圍的情況下可做出各種改變及修改。
本範圍揭示內容係被廣泛地解釋。旨在本發明揭示等效物、手段、系統及方法以實現本文所揭示的裝置、活動及機械動作。對於所揭示的各個裝置、製品、方法、手段、機械元件或機構,旨在本發明亦涵蓋在其揭示內容中並且教示用於實踐本文所揭示的許多態樣、機構及裝置的等效物、手段、系統及方法。另外,本發明關於塗層及其許多態樣、特徵及元件。此種裝置在其使用及操作中可為動態的,本發明旨在涵蓋製造裝置及/或製品使用的等效物、手段、系統及方法及與本文所揭示的操作及功能之描述及精神一致的許多態樣。本案請求項同樣地被廣泛地解釋。
本文在其許多具體實例中對本發明的描述本質上僅為示例性的,因此,不脫離本發明主旨的變型旨在落入本發明的範圍內。此等變化不被認為是背離本發明的精神及範圍。
1‧‧‧反射層
2‧‧‧混合層

Claims (20)

  1. 一種薄膜結構,其包含:第一混合層,其包含有機著色顏料及選自有機填料及無機填料之至少一種填料,其中該至少一種填料以相對於該第一混合層的總重量約3wt.%至約30wt.%範圍內之量存在;在該第一混合層頂部上之未經囊封的反射層;及在該反射層頂部上之第二混合層,該第二混合層包含有機著色顏料及選自有機填料及無機填料之至少一種填料,其中該至少一種填料以相對於該第二混合層的總重量約3wt.%至約30wt.%範圍內之量存在。
  2. 如請求項1之薄膜結構,其中該反射層為金屬的。
  3. 如請求項2之薄膜結構,其中該金屬反射層包含金屬及金屬合金中之至少一者。
  4. 如請求項3之薄膜結構,其中該金屬為鋁、鋅、銅、銀、金、鉑、鈀、鎳、鈷、鈮、鉻及錫中之至少一者。
  5. 如請求項3之薄膜結構,其中該金屬合金為黃銅、鋼、不銹鋼及青銅中之至少一者。
  6. 如請求項1之薄膜結構,其中該反射層為小片形式。
  7. 如請求項1之薄膜結構,其中該薄膜結構為顏料。
  8. 如請求項1之薄膜結構,其中該薄膜結構的平均粒度為約5微米至約100微米範圍內。
  9. 如請求項1之薄膜結構,其中該薄膜結構的厚度小於約10微米。
  10. 如請求項1之薄膜結構,其中該第一及第二混合層各者的厚度為約10nm至約5000nm範圍內。
  11. 一種製造薄膜結構的方法,其包含: 藉由沉積技術沉積第一混合層;在該第一混合層上沉積反射層;及在該反射層上沉積第二混合層以形成薄膜結構;其中該第一混合層包含有機著色顏料及選自有機填料及無機填料之至少一種填料,其中該至少一種填料以相對於該第一混合層的總重量約3wt.%至約30wt.%範圍內之量存在;及其中該第二混合層包含有機著色顏料及選自有機填料及無機填料之至少一種填料,其中該至少一種填料以相對於該第二混合層的總重量約3wt.%至約30wt.%範圍內之量存在,其中該反射層是未經囊封的。
  12. 如請求項11之方法,其進一步包含在沉積該第一混合層之前,提供具有釋放層的基板之步驟,其中該第一混合層係沉積在該釋放層上;且進一步包含在沉積該第二混合層之後,將該薄膜結構浸入溶劑中以溶解該釋放層。
  13. 如請求項12之方法,其進一步包含在浸入之後,確定該薄膜結構的尺寸。
  14. 如請求項13之方法,其中該經確定尺寸的薄膜結構的平均粒度在約5至約100微米範圍內。
  15. 如請求項11之方法,其中該薄膜結構的厚度小於約10微米。
  16. 如請求項11之方法,其中該薄膜結構在該反射層與該第一及第二混合層各者之間展現黏合性。
  17. 如請求項11之方法,其中該有機填料及無機填料中之至少一者包含以下中之至少一者:氟化鎂、一氧化矽、二氧化矽、氧化鋁、氟化鋁、二氧化鈦、氮化鋁、氮化硼、碳化硼、氧化鎢、氟化鈰、氟化鑭、氟化釹、氟化 釤、氟化鋇、氟化鈣、氟化鋰、碳化鎢、碳化鈦、氮化鈦、氮化矽、硫化鋅、玻璃薄片、類鑽石碳及其組合。
  18. 如請求項11之方法,其中該有機著色顏料包含以下中之至少一者:苝(perylene)、苝酮(perinone)、喹吖酮(quinacridone)、喹吖啶酮醌(quinacridonequinone)、蒽嘧啶(anthrapyrimidine)、蒽醌(anthraquinone)、蒽嵌蒽醌(anthanthrone)、苯并咪唑酮(benzimidazolone)、雙偶氮縮合(disazo condensation)、偶氮(azo)、偶氮甲鹼(azomethine)、喹啉黃(quinophthalone)、陰丹士林(indanthrone)、酞青素(phthalocyanine)、三芳基碳鎓(triarylcarbonium)、雙
    Figure 106143741-A0305-02-0015-1
    (dioxazine)、胺基蒽醌(aminoanthraquinone)、異吲哚啉(isoindoline)、二酮吡咯並吡咯(diketopyrrolopyrrole)、硫靛(thioindigo)、噻
    Figure 106143741-A0305-02-0015-2
    靛藍(thiazineindigo)、異吲哚啉(isoindoline)、異吲哚啉酮(isoindolinone)、皮蒽酮(pyranthrone)、異紫蒽酮(isoviolanthrone)顏料及其混合物。
  19. 如請求項11之方法,其中該第一混合層具有與該第二混合層相同的組成。
  20. 如請求項11之方法,其中該第一混合層具有與該第二混合層不同的組成。
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