JP6797841B2 - ナノ構造りん光顔料及びその使用 - Google Patents
ナノ構造りん光顔料及びその使用 Download PDFInfo
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- JP6797841B2 JP6797841B2 JP2017565965A JP2017565965A JP6797841B2 JP 6797841 B2 JP6797841 B2 JP 6797841B2 JP 2017565965 A JP2017565965 A JP 2017565965A JP 2017565965 A JP2017565965 A JP 2017565965A JP 6797841 B2 JP6797841 B2 JP 6797841B2
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- sral
- phosphorescent pigment
- pigment according
- nanostructured
- synthesized
- Prior art date
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Classifications
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
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- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
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- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
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- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
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- C09D5/22—Luminous paints
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7701—Chalogenides
- C09K11/7702—Chalogenides with zinc or cadmium
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7701—Chalogenides
- C09K11/7703—Chalogenides with alkaline earth metals
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
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Description
本発明は、Al2O3支持体;該Al2O3支持体上に配置されるMAl2O4:Xナノ結晶、ここで、Mは、Ca2+、Sr2+、Ba2+、Mg2+、Zn2+及びそれらの組み合わせから選択されるカチオンであり、Xは、Eu2+、Dy3+、Nd3+、Er3+、La3+、Lu3+、Ce3+、Y3+、Sm3+、Gd3+、Tb3+、Tm3+、Yb3+及びそれらの組み合わせから選択されるカチオンであり;及び、該MAl2O4:Xナノ結晶上に配置される溶融塩のナノ結晶を含む、ナノ構造りん光顔料に関する。
本発明の別の態様は、上記で定義したように、i)カチオンM前駆体、カチオンX前駆体、Al2O3及び溶融塩を含む出発物質を混合する工程;及びii)工程(i)で得られた混合物を還元雰囲気下で加熱する工程を含む、ナノ構造りん光顔料の製造方法に関する。
本発明者らは、開発されたナノ構造りん光顔料は、より大きなりん光を有し、アルミネートナノ結晶サイズの同じ範囲についてその技術に記載されているものに対しより白く見えることを観察した。これらの性質は、本発明の顔料の用途により多様性を与える。
市販されているSrAl2O4:Eu,Dy−系材料は、「リファレンス材料」として表し、Jinan Chenghao Technology Co., Ltd.から供給された。
顔料を、溶融塩、SrCO3、0.1μmの粒子サイズを有するアルミナ前駆体(α−Al2O3)、並びにレアアース前駆体Eu2O3及びDy2O3の存在下での合成により合成した。0.02モル濃度のEu及び0.01モル濃度のDyを組み込んだ。塩:(SrAl2O4:X)比は、1:1〜5:1のモル比、好ましくは3:1のモル比に含まれる。その材料を、2時間、N2−H2大気中、800〜1200℃の温度を使用して、合成した。
顔料は、3:1に相当する塩:(SrAl2O4:X)比についてアルミナ前駆体(SAO−6μm Al2O3と呼ばれる)としての6μmの粒子サイズを有するα−Al2O3を用いて、1000℃で2時間、N2−H2中で合成された。図9は、合成された材料の回折図を示す。
SrAl2O4:Eu,Dy顔料は、2時間、N2−H2大気中、1000℃の温度を用いて、アルミナ前駆体してγ−Al2O3を用いて、溶融塩により3:1の塩:(SrAl2O4:Eu,Dy)比で合成され、過剰なこのアルミナ(2のAl2O3:SrCO3比)が、組み込まれる(材料は、SAO−γ−Al2O3 Al/Sr=2と呼ばれる)。さらに1.25、2.5、3.75及び5重量%のZnOが組み込まれる(材料は、SAO−γ−Al2O3 Al/Sr=2+%ZnOと呼ばれる)。
表1は、リファレンス材料と比較した合成された材料の異なる特性を記載する。
図20は、60−3800cm−1の範囲におけるリファレンス材料のラマンスペクトルを示す。470cm−1に位置するラマンモードは、SrAl2O4の[AlO4]単位の内部振動に起因する。レーザー(λ=532nm)により材料の励起が生じると、1300−3800cm−1の範囲におけるラマンバンドは、Eu3+活性中心によるルミネセンスバンドに相当する。
この実施例を実施するために使用された設備及び材料は、Stork製のシルクスクリーン印刷機、Stork製のシルクスクリーン、円形の妙紙機、虹色インク、消泡剤、及びSrAl2O4:Eu,Dy顔料で製造される天然セルロース系繊維であり、該顔料は、2時間、N2−H2大気中、1000℃の温度を用いて、及び1のAl2O3:SrCO3比を用いて、6μmのアルミナから合成され、かつ及び固形分40重量%のカオリンミクロ粒子上に分散された粒子の懸濁液を得るために水性媒体に取り込まれた溶融塩により3:1の塩:(SrAl2O4:Eu,Dy)比で合成される。
紙の両面における印刷機の条件:
乾燥トンネル温度:145℃
装置スピード:70m/min
注入スピード:2500rpm
送風スピード:2400rpm
乾燥後の紙の残留水分:6.5%
シルクスクリーンの条件:
リファレンス:RSI900
デベロップメント:25 2/8”
メッシュ:105
開口面積:15%
薄さ:105ミクロン
幅:910mm
虹色インク及び添加物の条件:
市販のインクの名称:シルクスクリーン印刷インク5WR1241
市販の消泡剤の名称:添加物880775
市販の架橋剤の名称:添加物370010
架橋剤添加後のインク粘度:20 s CP4
印刷するインクの粘度:18 s CP4
紙の主たる条件:
繊維組成:100%コットンセルロース
秤量:90g/m2
ニス処理後の秤量:96g/m2
薄さ:115ミクロン
フェルト側のベントセンの平滑さ:700ml/分未満
ファブリック側のベントセンの平滑さ:800ml/分未満
ベントセン多孔度:20ml/分未満
折り目をつけた後のベントセン多孔度:140ml/分未満
コブ値:40〜70g/cm2
灰分:3%未満
不透明度:84%
確立された機械の条件を達成するために、印刷機が始動すると、シルクスクリーンが設置され、巻き戻し軸に紙巻きが設置され、紙ウェブが機械回路に分配され、20kgのインクドラム自体の緩やかな撹拌条件下で、インクに対して1.5重量%の割合で架橋剤を加えた。100mlの顔料及び消泡剤がこの混合物に加えた。成分の完全な分散が保証されると、ドラムの内容物を印刷機のインクためにポンプで送り込み、紙の最終的な水分、インクの粘度、及び印刷工程全体に渡る機械条件を制御しながら、片面に確立された図式設計に従い、スクリーンの穴を通してインクの印刷を開始する印刷シルクスクリーン上に紙を設置した。
自己接着セキュリティタグ用のオフセット印刷技術において、コート紙を使用するために特別に示された以下の式に従って、予め調製されたコーティングスリップが供給されるナイフコーティング機を使用して、この実施例を実施した:
ミネラルフィラー:スリップ50部を得るための80%カルシウムカーボネート(Specialty Minerals製のRef Albacar HO Slurry)及び20%カオリン(lmerys製のリファレンス Supragloss 95)。
合成結着剤(binder):10部 ブタジエンスチレンラテックス(BASF製のリファレンス Styronal D−517)
合成共結着剤(co−binder):2部(BASF製のリファレンス Acronal 700L)
増粘剤:1部 カルボキシメチルセルロース
不溶化剤:1部(BASF製のリファレンス Basocoll OV)
添加物:1部水酸化ナトリウム
SrAl2O4:Eu,Dy顔料の水性分散液:1部
水:100部までの残部。
被覆のために使用され以下の特徴を有する自己接着性紙:
総秤量:200g/m2
シリコン化支持体秤量(Siliconized support grammage):82g/m2
接着剤重量:20g/m2
前面の繊維組成:機械パルプからの100%セルロース
被覆機の条件:
乾燥トンネル温度:145℃
装置スピード:150m/分
乾燥後の紙の残留水分:6.5%
被覆紙の特性:
総秤量:220g/m2
被覆された層の重量:20g/m2
被覆された側のベック平滑さ:200秒
灰分:20%
不透明度:84%
確立された機械の条件を達成するために、被覆機が始動すると、巻き戻し軸に紙巻きが設置され、紙ウェブが機械回路に分配され、コーティングスリップをナイフコーターのトレイに計量供給し、紙巻きを使い果たすまで、確立された機械条件に従ってコーティング工程を開始した。コーティング工程の後に、紙巻きは、確立された平滑さに達するまで、カレンダー加工され、セキュリティタグのシート又はリール印刷のための後続の工程に必要なフォーマットに切断された。
薄いSrAl2O4:Eu,DyフィルムをAl2O3支持体として焼結性多結晶アルミナプレートを使用して合成した。
顔料を、1000℃、1200℃及び1400℃で、2時間、N2−H2中、3:1に相当する塩:(CaAl2O4:X)比で、アルミナ前駆体として6μmの粒子サイズを有するα−Al2O3を用いて合成した。図26は、前記合成された材料の回折図を示す。
顔料を、1200℃及び1400℃で、2時間、N2−H2中、3:1に相当する塩:(SrAl2O4:X)比で、アルミナ前駆体として6μmの粒子サイズを有するα−Al2O3を用いて、合成した。図28は、合成された材料の回折図を示す。
合成された顔料は、6μm粒子のα−Al2O3の前駆体サイズにより付された制限により、粒子サイズを保持し、得られた微結晶サイズは、1200℃及び1400℃での熱処理についてそれぞれ50nm及び55nmであった。1400℃で熱合成された顔料について、リファレンス顔料と比較して最大45%の強度の増加が達成された。
Claims (14)
- Al2O3支持体;
該Al2O3支持体上に配置されるMAl2O4:Xナノ結晶、ここで、Mは、Ca2+、Sr2+、Ba2+、Mg2+、Zn2+及びそれらの組み合わせから選択されるカチオンであり、Xは、Eu2+、Dy3+、Nd3+、Er3+、La3+、Lu3+、Ce3+、Y3+、Sm3+、Gd3+、Tb3+、Tm3+、Yb3+及びそれらの組み合わせから選択されるカチオンである;及び
該MAl2O4:Xナノ結晶上に配置される溶融塩のナノ結晶
を含み、前記溶融塩:(MAl 2 O 4 :X)のモル比が1:1〜5:1である、ナノ構造りん光顔料。 - 前記顔料の粒子サイズは10μm以下である、請求項1に記載のナノ構造りん光顔料。
- 前記Al2O3支持体は、α−Al2O3である、請求項1又は2に記載のナノ構造りん光顔料。
- 前記MAl2O4:Xナノ結晶のサイズは500nm以下である、請求項1〜3のいずれかに記載のナノ構造りん光顔料。
- 前記溶融塩は共融混合物である、請求項1〜4のいずれかに記載のナノ構造りん光顔料。
- 混成シリカナノ粒子を含む外層を更に含む、請求項1〜5のいずれかに記載のナノ構造りん光顔料。
- i)カチオンM前駆体、カチオンX前駆体、Al2O3及び溶融塩を含む出発物質を混合する工程;並びに
ii)工程(i)で得られた混合物を還元雰囲気下で加熱する工程
を含む、請求項1〜6のいずれかに記載のナノ構造りん光顔料の製造方法。 - 工程i)のAl2O3の粒子サイズは、80nm〜6μmである、請求項7に記載のナノ構造りん光顔料の製造方法。
- 工程i)は、2以下のモル比のAl2O3:カチオンM前駆体を含む、請求項7又は8に記載のナノ構造りん光顔料の製造方法。
- 工程ii)の前記加熱は、温度900℃〜1400℃で実行される、請求項7〜9のいずれかに記載のナノ構造りん光顔料の製造方法。
- シリカ前駆体及び酸のエタノール/水の溶液を工程ii)で得られた材料上に加える工程iii)を含む、請求項7〜10のいずれかに記載のナノ構造りん光顔料の製造方法。
- 認証、信号伝達、照明又は装飾のための、請求項1〜6のいずれかに記載のナノ構造りん光顔料の使用。
- 請求項1〜6のいずれかに記載のナノ構造りん光顔料を含む、セキュリティ物品。
- セキュリティ紙、封筒、小切手、約束手形、銀行券、身分証明書、パスポート、チケット、シール、パス、証明書、タグ又はラベルから選択される、請求項13に記載のセキュリティ物品。
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TR201908242T4 (tr) | 2019-06-21 |
EP3310878B1 (en) | 2019-04-17 |
KR20180044261A (ko) | 2018-05-02 |
CL2017003239A1 (es) | 2018-06-22 |
KR102557917B1 (ko) | 2023-07-19 |
ES2732102T3 (es) | 2019-11-20 |
CN107922833A (zh) | 2018-04-17 |
PT3310878T (pt) | 2019-06-14 |
US10899960B2 (en) | 2021-01-26 |
BR112017027355B1 (pt) | 2022-05-10 |
BR112017027355A2 (pt) | 2018-08-28 |
AR105024A1 (es) | 2017-08-30 |
MX2017016831A (es) | 2018-11-09 |
PH12017502361A1 (en) | 2018-06-25 |
WO2016202979A1 (en) | 2016-12-22 |
JP2018521171A (ja) | 2018-08-02 |
CO2017013093A2 (es) | 2018-03-09 |
US20180282618A1 (en) | 2018-10-04 |
CN107922833B (zh) | 2020-09-04 |
PL3310878T3 (pl) | 2019-09-30 |
EP3310878A1 (en) | 2018-04-25 |
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