Azomethine dyes

Industry

CPC
C09B55/00

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Parent Industries

CCHEMISTRY METALLURGY C09Paints, dyes C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES MORDANTS LAKES

Current Industry

Sub Industries

C09B55/001Azomethine dyes forming a 1,2 complex metal compound C09B55/002Monoazomethine dyes C09B55/003with the -C=N- group attached to an heteroring C09B55/004with the -C=N- group between two heterorings C09B55/005Disazomethine dyes C09B55/006containing at least one heteroring C09B55/007containing only carbocyclic rings C09B55/008Tri or polyazomethine dyes C09B55/009Azomethine dyes, the C-atom of the group -C=N- being part of a ring (Image)

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Compound, ink, resist composition for color filter, color filter, s...
- Patent number 12,098,288
- Issue date Sep 24, 2024
- Canon Kabushiki Kaisha
- Taichi Shintou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for preparing a compound comprising at least one imine funct...
- Patent number 12,037,746
- Issue date Jul 16, 2024
- Commissariat a l'Energie Atomique et Aux Energies Alternatives
- Olivier Poncelet
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Coloring compound and thermal transfer recording sheet
- Patent number 11,958,978
- Issue date Apr 16, 2024
- Canon Kabuskiki Kaisha
- Ai Hayakawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process for treating keratin fibers using an anhydrous composition...
- Patent number 11,896,700
- Issue date Feb 13, 2024
- L'Oreal
- Arnaud Bonnamy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fluorescent dye, preparation method therefor, and application thereof
- Patent number 11,859,087
- Issue date Jan 2, 2024
- SUZHOU BAIYUAN GENT. CO., LTD.
- Tuanjie Che
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Laundry care compositions
- Patent number 11,530,374
- Issue date Dec 20, 2022
- Milliken & Company
- Benjamin R. Butterfield
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Symmetric azomethine direct dyes, process for their preparation, co...
- Patent number 11,504,318
- Issue date Nov 22, 2022
- L'Oreal
- Stéphane Sabelle
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Compound, ink, resist composition for color filter, sheet for heat-...
- Patent number 11,472,962
- Issue date Oct 18, 2022
- Canon Kabushiki Kaisha
- Taichi Shintou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Production method for pigment aqueous dispersion
- Patent number 11,459,476
- Issue date Oct 4, 2022
- Kao Corporation
- Kaname Mitsuyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Nano dye molecule, color filter, and display panel
- Patent number 11,453,781
- Issue date Sep 27, 2022
- TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Lin Ai
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Water-based ink for ink-jet recording
- Patent number 11,434,386
- Issue date Sep 6, 2022
- Brother Kogyo Kabushiki Kaisha
- Satoshi Okuda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, ink, resist composition for color filter, sheet for heat-...
- Patent number 11,434,375
- Issue date Sep 6, 2022
- Canon Kabushiki Kaisha
- Taichi Shintou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Triazabutadienes as cleavable cross-linkers
- Patent number 11,339,129
- Issue date May 24, 2022
- Arizona Board of Regents on behalf of the University of Arizon
- John C. Jewett
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxidative dye couplers with novel auxochrome substituents and azome...
- Patent number 11,339,295
- Issue date May 24, 2022
- WELLA INTERNATIONAL OPERATIONS SWITZERLAND SÀRL
- Bryan P. Murphy
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compound, core-shell dye, photosensitive resin composition includin...
- Patent number 11,041,073
- Issue date Jun 22, 2021
- Samsung SDI Co., Ltd.
- Euisoo Jeong
- G02 - OPTICS
Information Patent Grant
Sphinogosine-1 -phosphate receptor modulators for treatment of card...
- Patent number 11,034,691
- Issue date Jun 15, 2021
- The Scripps Research Institute
- Edward Roberts
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Plastic articles containing suspended photochromic dye molecules
- Patent number 11,015,028
- Issue date May 25, 2021
- ZHEJIANG JINGYI NEW MATERIAL TECHNOLOGY CO., LTD
- Shuyong Xiao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dissymmetric azomethine direct dyes and process for their preparati...
- Patent number 10,927,259
- Issue date Feb 23, 2021
- L'Oreal
- Stéphane Sabelle
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Azomethine direct dyes bearing at least one cationic charge, cosmet...
- Patent number 10,889,718
- Issue date Jan 12, 2021
- L'Oreal
- Stéphane Blais
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Metal organic liquid crystal dyes
- Patent number 10,851,302
- Issue date Dec 1, 2020
- GAUZY LTD.
- Hassan-Ali Hakemi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Luminogenic transition metal-based pyridyl complex and its use
- Patent number 10,759,994
- Issue date Sep 1, 2020
- City University of Hong Kong
- Kam Wing Kenneth Lo
- G01 - MEASURING TESTING
Information Patent Grant
(Dis)symmetric azomethine-type direct dye comprising at least one p...
- Patent number 10,731,038
- Issue date Aug 4, 2020
- L'Oreal
- Stéphane Sabelle
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Highly fluorescent pyrrole-BF2 chromophores
- Patent number 10,676,489
- Issue date Jun 9, 2020
- The University of Akron
- Christopher J. Ziegler
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Coloring compound and thermal transfer recording sheet
- Patent number 10,501,631
- Issue date Dec 10, 2019
- Canon Kabushiki Kaisha
- Taichi Shintou
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cationic direct dyes
- Patent number 10,494,527
- Issue date Dec 3, 2019
- BASF SE
- Frank Bachmann
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Electrowetting element
- Patent number 10,444,489
- Issue date Oct 15, 2019
- Amazon Technologies, Inc.
- Robin Leguijt
- G02 - OPTICS
Information Patent Grant
Ultraviolet-curable resin composition and optical fiber
- Patent number 10,358,577
- Issue date Jul 23, 2019
- Sumitomo Electric Industries, Ltd.
- Yuya Homma
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Leuco polymers as bluing agents in laundry care compositions
- Patent number 10,351,709
- Issue date Jul 16, 2019
- Milliken & Company
- Sanjeev K. Dey
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Carrier fluid compounds and dye compounds for electrowetting apparatus
- Patent number 10,338,372
- Issue date Jul 2, 2019
- Amazon Technologies, Inc.
- Robin Leguijt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Sphinogosine-1-phosphate receptor modulators for treatment of cardi...
- Patent number 10,323,029
- Issue date Jun 18, 2019
- The Scripps Research Institute
- Edward Roberts
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
FLUORESCENT COMPOUND AND FLUORESCENTLY LABELED BIOLOGICAL SUBSTANCE...
- Publication number 20240110918
- Publication date Apr 4, 2024
- FUJIFILM CORPORATION
- Kousuke WATANABE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FLUORESCENT DYES
- Publication number 20240093034
- Publication date Mar 21, 2024
- EXOPHARM LIMITED
- Jim PALMER
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PROCESS FOR TREATING KERATIN FIBERS USING AN ANHYDROUS COMPOSITION...
- Publication number 20230137804
- Publication date May 4, 2023
- L'Oreal
- Arnaud BONNAMY
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FLUOROGENIC AMINO ACIDS
- Publication number 20230028318
- Publication date Jan 26, 2023
- President and Fellows of Harvard College
- Erkin Kuru
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Method for preparing a compound comprising at least one imine funct...
- Publication number 20220412011
- Publication date Dec 29, 2022
- Commissariat A L'Energie Atomique et Aux Energies Alternatives
- Olivier PONCELET
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
USE OF FLUOROPHORE COMPOUNDS OF THE AZA- BODIPY TYPE AS CONTRAST AG...
- Publication number 20220322945
- Publication date Oct 13, 2022
- UNIVERSITE GRENOBLE ALPES
- Lucie SANCEY
- G01 - MEASURING TESTING
Information Patent Application
PROTECTED TRIAZABUTADIENE COMPOSITIONS FOR CELLULAR STUDIES IN INTA...
- Publication number 20220274931
- Publication date Sep 1, 2022
- Arizona Board of Regents on behalf of The University of Arizona
- John C. Jewett
- G01 - MEASURING TESTING
Information Patent Application
SYMMETRIC AZOMETHINE DIRECT DYES, PROCESS FOR THEIR PREPARATION, CO...
- Publication number 20220016009
- Publication date Jan 20, 2022
- L'Oreal
- Stéphane SABELLE
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
FLUORESCENT DYE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
- Publication number 20210206979
- Publication date Jul 8, 2021
- TUANJIE CHE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
NANO DYE MOLECULE, COLOR FILTER, AND DISPLAY PANEL
- Publication number 20210179854
- Publication date Jun 17, 2021
- TCL China Star Optoelectronics Technology Co., Ltd.
- Lin AI
- B82 - NANO-TECHNOLOGY
Information Patent Application
COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, S...
- Publication number 20210115259
- Publication date Apr 22, 2021
- Canon Kabushiki Kaisha
- Taichi Shintou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
TRIAZABUTADIENES AS CLEAVABLE CROSS-LINKERS
- Publication number 20210002234
- Publication date Jan 7, 2021
- Arizona Board of Regents on behalf of The University of Arizona
- John C. Jewett
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
PRODUCTION METHOD FOR PIGMENT AQUEOUS DISPERSION
- Publication number 20200392361
- Publication date Dec 17, 2020
- KAO CORPORATION
- Kaname MITSUYOSHI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, SHEET FOR HEAT-...
- Publication number 20200339814
- Publication date Oct 29, 2020
- Canon Kabushiki Kaisha
- Taichi Shintou
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Plastic Articles Containing Suspended Photochromic Dye Molecules
- Publication number 20200339765
- Publication date Oct 29, 2020
- 1-MATERIAL INC
- Shuyong Xiao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
COLORING COMPOUND AND THERMAL TRANSFER RECORDING SHEET
- Publication number 20200283633
- Publication date Sep 10, 2020
- Canon Kabushiki Kaisha
- Ai Hayakawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
DISSYMMETRIC AZOMETHINE DIRECT DYES AND PROCESS FOR THEIR PREPARATI...
- Publication number 20200190329
- Publication date Jun 18, 2020
- L'Oreal
- Stéphane SABELLE
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, H...
- Publication number 20200131371
- Publication date Apr 30, 2020
- Canon Kabushiki Kaisha
- Taichi Shintou
- G02 - OPTICS
Information Patent Application
NOVEL AZOMETHINE DIRECT DYES BEARING AT LEAST ONE CATIONIC CHARGE,...
- Publication number 20200123386
- Publication date Apr 23, 2020
- L'Oreal
- Stéphane BLAIS
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
OXIDATIVE DYE COUPLERS WITH NOVEL AUXOCHROME SUBSTITUENTS AND AZOME...
- Publication number 20200024455
- Publication date Jan 23, 2020
- Coty Inc.
- Bryan P. Murphy
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
(DIS)SYMMETRIC AZOMETHINE-TYPE DIRECT DYE COMPRISING AT LEAST ONE P...
- Publication number 20190309170
- Publication date Oct 10, 2019
- L'Oreal
- Stéphane SABELLE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SPHINOGOSINE-1-PHOSPHATE RECEPTOR MODULATORS FOR TREATMENT OF CARDI...
- Publication number 20190300527
- Publication date Oct 3, 2019
- The Scripps Research Institute
- Edward Roberts
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Water-Based Ink For Ink-Jet Recording
- Publication number 20190300735
- Publication date Oct 3, 2019
- BROTHER KOGYO KABUSHIKI KAISHA
- Satoshi Okuda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
NOVEL COMPOUND, CORE-SHELL DYE, PHOTOSENSITIVE RESIN COMPOSITION IN...
- Publication number 20190256713
- Publication date Aug 22, 2019
- Samsung SDI Co., Ltd.
- Euisoo JEONG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ULTRAVIOLET-CURABLE RESIN COMPOSITION AND OPTICAL FIBER
- Publication number 20190127605
- Publication date May 2, 2019
- Sumitomo Electric Industries, Ltd.
- Yuya HOMMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HIGHLY FLUORESCENT PYRROLE-BF2 CHROMOPHORES
- Publication number 20190119305
- Publication date Apr 25, 2019
- The University of Akron
- Christopher J. Ziegler
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SUBLIMATION THERMAL TRANSFER SHEET AND COMBINATION OF SUBLIMATION T...
- Publication number 20190105934
- Publication date Apr 11, 2019
- DAI NIPPON PRINTING CO., LTD.
- Shinya YODA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Random Lasing Photo-Curable Composition for Use as Random Lasing Ga...
- Publication number 20190074657
- Publication date Mar 7, 2019
- UNIVERSITE DE STRASBOURG
- Luisa De Cola
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
COMPOUND, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, DYED...
- Publication number 20180215922
- Publication date Aug 2, 2018
- Canon Kabushiki Kaisha
- Hajime Muta
- D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information Patent Application
METAL ORGANIC LIQUID CRYSTAL DYES
- Publication number 20170355908
- Publication date Dec 14, 2017
- GAUZY LTD.
- Hassan-Ali HAKEMI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Azomethine dyes

Industry

Parent Industries

Current Industry

Sub Industries

Patents Grantslast 30 patents

Compound, ink, resist composition for color filter, color filter, s...

Method for preparing a compound comprising at least one imine funct...

Coloring compound and thermal transfer recording sheet

Process for treating keratin fibers using an anhydrous composition...

Fluorescent dye, preparation method therefor, and application thereof

Laundry care compositions

Symmetric azomethine direct dyes, process for their preparation, co...

Compound, ink, resist composition for color filter, sheet for heat-...

Production method for pigment aqueous dispersion

Nano dye molecule, color filter, and display panel

Water-based ink for ink-jet recording

Compound, ink, resist composition for color filter, sheet for heat-...

Triazabutadienes as cleavable cross-linkers

Oxidative dye couplers with novel auxochrome substituents and azome...

Compound, core-shell dye, photosensitive resin composition includin...

Sphinogosine-1 -phosphate receptor modulators for treatment of card...

Plastic articles containing suspended photochromic dye molecules

Dissymmetric azomethine direct dyes and process for their preparati...

Azomethine direct dyes bearing at least one cationic charge, cosmet...

Metal organic liquid crystal dyes

Luminogenic transition metal-based pyridyl complex and its use

(Dis)symmetric azomethine-type direct dye comprising at least one p...

Highly fluorescent pyrrole-BF2 chromophores

Coloring compound and thermal transfer recording sheet

Cationic direct dyes

Electrowetting element

Ultraviolet-curable resin composition and optical fiber

Leuco polymers as bluing agents in laundry care compositions

Carrier fluid compounds and dye compounds for electrowetting apparatus

Sphinogosine-1-phosphate receptor modulators for treatment of cardi...

Patents Applicationslast 30 patents

FLUORESCENT COMPOUND AND FLUORESCENTLY LABELED BIOLOGICAL SUBSTANCE...

FLUORESCENT DYES

PROCESS FOR TREATING KERATIN FIBERS USING AN ANHYDROUS COMPOSITION...

FLUOROGENIC AMINO ACIDS

Method for preparing a compound comprising at least one imine funct...

USE OF FLUOROPHORE COMPOUNDS OF THE AZA- BODIPY TYPE AS CONTRAST AG...

PROTECTED TRIAZABUTADIENE COMPOSITIONS FOR CELLULAR STUDIES IN INTA...

SYMMETRIC AZOMETHINE DIRECT DYES, PROCESS FOR THEIR PREPARATION, CO...

FLUORESCENT DYE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

NANO DYE MOLECULE, COLOR FILTER, AND DISPLAY PANEL

COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, S...

TRIAZABUTADIENES AS CLEAVABLE CROSS-LINKERS

PRODUCTION METHOD FOR PIGMENT AQUEOUS DISPERSION

COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, SHEET FOR HEAT-...

Plastic Articles Containing Suspended Photochromic Dye Molecules

COLORING COMPOUND AND THERMAL TRANSFER RECORDING SHEET

DISSYMMETRIC AZOMETHINE DIRECT DYES AND PROCESS FOR THEIR PREPARATI...

COMPOUND, INK, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, H...

NOVEL AZOMETHINE DIRECT DYES BEARING AT LEAST ONE CATIONIC CHARGE,...

OXIDATIVE DYE COUPLERS WITH NOVEL AUXOCHROME SUBSTITUENTS AND AZOME...

(DIS)SYMMETRIC AZOMETHINE-TYPE DIRECT DYE COMPRISING AT LEAST ONE P...

SPHINOGOSINE-1-PHOSPHATE RECEPTOR MODULATORS FOR TREATMENT OF CARDI...

Water-Based Ink For Ink-Jet Recording

NOVEL COMPOUND, CORE-SHELL DYE, PHOTOSENSITIVE RESIN COMPOSITION IN...

ULTRAVIOLET-CURABLE RESIN COMPOSITION AND OPTICAL FIBER

HIGHLY FLUORESCENT PYRROLE-BF2 CHROMOPHORES

SUBLIMATION THERMAL TRANSFER SHEET AND COMBINATION OF SUBLIMATION T...

Random Lasing Photo-Curable Composition for Use as Random Lasing Ga...

COMPOUND, RESIST COMPOSITION FOR COLOR FILTER, COLOR FILTER, DYED...

METAL ORGANIC LIQUID CRYSTAL DYES