US2281895A - Light sensitive material - Google Patents

Light sensitive material Download PDF

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Publication number
US2281895A
US2281895A US365652A US36565240A US2281895A US 2281895 A US2281895 A US 2281895A US 365652 A US365652 A US 365652A US 36565240 A US36565240 A US 36565240A US 2281895 A US2281895 A US 2281895A
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United States
Prior art keywords
light
dyestuffs
anthraquinone
sensitive material
grams
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Expired - Lifetime
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US365652A
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English (en)
Inventor
Poser Gottlieb Von
Schmidt Maximilian Paul
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Individual
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/02Direct bleach-out processes; Materials therefor; Preparing or processing such materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/48Photometry, e.g. photographic exposure meter using chemical effects
    • G01J1/50Photometry, e.g. photographic exposure meter using chemical effects using change in colour of an indicator, e.g. actinometer

Definitions

  • the present invention relates to light sensitive materials which may be used for photographic purposes.
  • triphenylmethane dyestuffs for tive materials are obtained which may be used for photographic purposes.
  • Such light-sensitive materials have hitherto not attained a great importance in view of the fact that the light-sensitiveness of the dyestuffs which in most cases is only very small is not sufliciently enhanced by the sensitizers so that the light-sensitive materials require too long times of exposure.
  • the anthraquinone and the derivatives thereof are suitable sensitizers for the above mentioned light-sensitive layers containing organic dyestuffs.
  • the derivatives which have a good solubility in water and are colorless or only feebly colored may be used with special advantage.
  • the benzene nuclei of the anthraquinone may carry simple substituents such as allryl groups, halogen atoms, carboxylic or sulfoiiic acid groups.
  • 2-anthraquinone monosulfonic acid may also be used with good success.
  • the anthraquinone or its derivatives there may be used the benzanthrone or the derivatives thereof,
  • the light-sensitiveness of dyestuffs may be enhancedto a conthe light-sensitiveness obtained by sensitization of dyestuffs with known sensitizers. It,v is even poss ifle, according to this invention, to sensitize dyestuffs, which per se are practically not sensitive to light, to such an extent that they show a great light-sensitiveness and may, consequently be used'for photographic purposes.
  • the sensitizers used according to the present invention are preferably applied together with azo-dyestufl's, for instance, very simple azo-dyestufis, such as amino-azobenzene or complicated 5
  • azo-dyestufl's for instance, very simple azo-dyestufis, such as amino-azobenzene or complicated 5
  • the Y siderable extent 1. e. in general to a multipleof November 20,
  • a'zo-dyestuffs such as, disazo-dyestufis, .trisazodyestuffs or tetrokisazo-dyestuifs.
  • the best re-' sults are generally obtained with mon'oazo-dyestuffs, especially such as contain one or several There instance, blue or violet triphenylmethane dyestuffs. When combined with the said sensitizers they very quickly turn yellow-green .or green, respectively, on exposure to light.
  • Oxazine dyestuffs such as Nile-blue or quinone dyestuffs such as Alizarinirisol D or Alizarinsaphirol B (see Schultz Farbstofltabellen 1931, Nos.
  • layers may also be applied in the color photography or in heliographicprinting for the preparation of prints.
  • blue dyestuffs preferably those which entirely bleach out on exposure to light.
  • yellow dyestufls are generally to be preferred. 7
  • the said light-sensitive layers resides in the fact that they 'are of good stability in the dark. As is sensitive to light, asmore fully described below.”
  • the fixation may be carried through in various ways according to the properties of the dyestuffs and sensitizers used. If in the case of a bleaching-out layer the sensitizer is soluble in a solvent in which the dyestuff does not dissolve, the sensitizer may be removed after exposure bywashing out with the respective solvent. In many cases water may be used as solvent. If dyestuffs are used which per se are practically insensitive to light, stable prints may be obtained in this manner. Sometimes it is even possible to use for the fixation a liquid which dissolves the sensitizer and in which the dyestufi per se is likewise soluble. This method may be applied in case the dyestuif has substantive properties relative to the support or is rendered insoluble by a treatment with a mordant or a like operation.
  • the dyestuff differs in its form according to the pH-value of the layer. It often occurs that of the two forms which are generally of different color that one existing at a higher pH-value is not or hardly sensitive to light whereas that one existing at a lower pHvalue is sensitive to light.
  • the dyestuif is then used in the latter form, the fixation being performed in the dry way by treating the light-sensitive material with gaseous ammonia.
  • a film of regenerated cellulose is impregnated with a solution containing per liter of water grams of the dyestuff prepared by coupling diazotized sulfonllic acid with beta-naphthol (Orange II Schultz Farbstofitabellen No. 189) grams of phosphoric acid and. 25 grams of 2.7-anthraquinone disulfonate of sodium.
  • exposing the orange-red film thus obtained to the light of an arc lamp the coloration disappears in a few minutes.
  • the film may, for instance, be used for photometric purposes.
  • Films of similar properties may be obtained with the aid of azo-dyestufis prepared by coupling of the following components: diazotized aniline and dimethylaniline (butteryellow 0, Schultz Farbstofftabellen No.
  • the prints may be fixed by treating them with gaseous ammonia whereby the dyestuff assume a lighte yellow color stable to light.
  • the prints obtained are suitable for further printing on diazo-photoprinting material.
  • 2.7-anthraquinone sulfonate of sodium there may be used grams of 1. i-dichlor0-2-anthraquinone sulfonate of potassium. It is also possible to use instead of the dichloro compound, 1.2-diamino-anthraquinone- 3-sulionic acid in form of its sodium or potassium salt, the amino compounds, however, being in general less suitable on account of an intense coloration of their own.
  • a cellulose hydrate foil is impregnated with a solution of 5 grams of erioglaucine (see Schultz, Farbstoiftabellen 1931, N0. 770) 10 grams of phosphoric acid and 20 grams of anthraquinone-2.7-disulfonate of sodium 1 liter of water.
  • erioglaucine see Schultz, Farbstoiftabellen 1931, N0. 770
  • phosphoric acid 10 grams
  • anthraquinone-2.7-disulfonate of sodium 1 liter of water When exposed to light under an original the exposed parts change from blue to yellow-green. These exposed yellow-green parts absorb chemically active light better than the unexposed blue parts.
  • Such a film may be used for the preparation of an intermediate original in case a positive shall be prepared on diazo-photoprinting paper from a negative.
  • the erioglaucine there may be applied in a similar manner other triphenylmethane dyestuffs, for instance Acid
  • a light-sensitive material is prepared by impregnating a cellulosehydrate film with a solution containing per liter of water 15 grams of the sulfonated dyestufl, 20 grams of phosphoric acid and 40 grams of the sodium salt of benzanthrone-sulfonic acid: The latter is obtained by introducing benzanthrone into 6 or 8 times the quantity of fuming sulfuric acid containing 20% of free sulfuric anhydride, the temperature of the mixture rising to about 60 C. and sulfonatlon taking place. When a test portion shows that the product obtained is entirely soluble in water, the whole is diluted with ice water and the sodium salt of benzanthrone-sulfonic acid is isolated by addition of sodium chloride. Instead of the benzanthrone-sulfonic acid the sulfonic acid of napthanthraquinone prepared in an analogous manner may be used.
  • Light sensitive material which consists of a sheet support carrying a colored layer which layer changes their shade on exposure to light wherein the said layer comprises a dyestufi which is unstable to light and as a sensitizer a substance selected from the group consisting of anthraquinone and benzanthrone compounds.
  • Light sensitive material which consists of a sheet support carrying a layer which comprises a dyestufl capable of bleaching out on exposure of the layer to light and as a sensitizer a substance selected from the group consisting of water soluble anthraquinone and benzanthrone compounds.
  • Light sensitive material which consists of a sheet support carrying a layer which com-' prises a dyestufl capable of bleaching out on exposure of the layer to light and as a sensitizer a substance selected from the group consisting 11 wherein the said dyestufl is a mono-azo dyestufl containing a basic group.
  • Light sensitive material which consists of a sheet support carrying a layer which comprises a dyestufi capable of bleaching out on exposure of the layer to light and as a sensitizer a substance selected from the group consisting of water soluble substantially colorless anthraquinone and benzanthrone compounds.
  • Light sensitivematerial which consists of a sheet support carrying a layer which comprises an azo dyestui! capable of bleaching out on exposure of the layer to light and as a sensitizer a water soluble substantially colorless anthraquinone derivativewhich contains a sulfo group as a substituent in an aromatic nucleus.
  • Light sensitive material which consists of a cellulose hydrate foil which is impregnated with a mixture comprising a mono-azo dyestuif capable of bleaching out on exposure of the layer to light and a 'water soluble substantially colorless anthraquinone derivative which contains a sulfo group as a substituent in an aromatic nucleus.
  • Light sensitive material which consists of a cellulosehydrate foil which is impregnated with a mixture comprising a mono-azo dyestufi capable of bleaching out on exposure of the layer to light and 2.7-anthraquinone disulfonic acid.
  • Light sensitive material which consists of

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
US365652A 1939-11-20 1940-11-14 Light sensitive material Expired - Lifetime US2281895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE218097X 1939-11-20

Publications (1)

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US2281895A true US2281895A (en) 1942-05-05

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US365652A Expired - Lifetime US2281895A (en) 1939-11-20 1940-11-14 Light sensitive material

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US (1) US2281895A (fr)
BE (1) BE439901A (fr)
CH (2) CH220433A (fr)
FR (1) FR870244A (fr)
NL (1) NL54339C (fr)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285744A (en) * 1963-04-04 1966-11-15 Horizons Inc Photography
US3527639A (en) * 1965-09-30 1970-09-08 Kalle Ag Light-sensitive composition utilizing anthraquinone derivatives as optical sensitizers
US3892569A (en) * 1972-12-04 1975-07-01 Gen Film Dev Corp Photosensitive sheets comprising organic dyes and sensitizers
JPS50131517A (fr) * 1974-04-03 1975-10-17
US4241166A (en) * 1978-02-24 1980-12-23 Hoechst Aktiengesellschaft Photopolymerizable composition comprising a monoazo dye as contrast colorant
US4251622A (en) * 1973-05-25 1981-02-17 Nippon Paint Co., Ltd. Photo-sensitive composition for dry formation of image
US5616443A (en) * 1993-08-05 1997-04-01 Kimberly-Clark Corporation Substrate having a mutable colored composition thereon
US5643356A (en) * 1993-08-05 1997-07-01 Kimberly-Clark Corporation Ink for ink jet printers
US5645964A (en) * 1993-08-05 1997-07-08 Kimberly-Clark Corporation Digital information recording media and method of using same
US5681380A (en) * 1995-06-05 1997-10-28 Kimberly-Clark Worldwide, Inc. Ink for ink jet printers
US5685754A (en) * 1994-06-30 1997-11-11 Kimberly-Clark Corporation Method of generating a reactive species and polymer coating applications therefor
US5700850A (en) * 1993-08-05 1997-12-23 Kimberly-Clark Worldwide Colorant compositions and colorant stabilizers
US5721287A (en) * 1993-08-05 1998-02-24 Kimberly-Clark Worldwide, Inc. Method of mutating a colorant by irradiation
US5733693A (en) * 1993-08-05 1998-03-31 Kimberly-Clark Worldwide, Inc. Method for improving the readability of data processing forms
US5739175A (en) * 1995-06-05 1998-04-14 Kimberly-Clark Worldwide, Inc. Photoreactor composition containing an arylketoalkene wavelength-specific sensitizer
US5747550A (en) * 1995-06-05 1998-05-05 Kimberly-Clark Worldwide, Inc. Method of generating a reactive species and polymerizing an unsaturated polymerizable material
US5773182A (en) * 1993-08-05 1998-06-30 Kimberly-Clark Worldwide, Inc. Method of light stabilizing a colorant
US5782963A (en) * 1996-03-29 1998-07-21 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5786132A (en) * 1995-06-05 1998-07-28 Kimberly-Clark Corporation Pre-dyes, mutable dye compositions, and methods of developing a color
US5798015A (en) * 1995-06-05 1998-08-25 Kimberly-Clark Worldwide, Inc. Method of laminating a structure with adhesive containing a photoreactor composition
US5811199A (en) * 1995-06-05 1998-09-22 Kimberly-Clark Worldwide, Inc. Adhesive compositions containing a photoreactor composition
US5837429A (en) * 1995-06-05 1998-11-17 Kimberly-Clark Worldwide Pre-dyes, pre-dye compositions, and methods of developing a color
US5849411A (en) * 1995-06-05 1998-12-15 Kimberly-Clark Worldwide, Inc. Polymer film, nonwoven web and fibers containing a photoreactor composition
US5855655A (en) * 1996-03-29 1999-01-05 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5865471A (en) * 1993-08-05 1999-02-02 Kimberly-Clark Worldwide, Inc. Photo-erasable data processing forms
US5885337A (en) * 1995-11-28 1999-03-23 Nohr; Ronald Sinclair Colorant stabilizers
US5891229A (en) * 1996-03-29 1999-04-06 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6008268A (en) * 1994-10-21 1999-12-28 Kimberly-Clark Worldwide, Inc. Photoreactor composition, method of generating a reactive species, and applications therefor
US6017471A (en) * 1993-08-05 2000-01-25 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US6017661A (en) * 1994-11-09 2000-01-25 Kimberly-Clark Corporation Temporary marking using photoerasable colorants
US6033465A (en) * 1995-06-28 2000-03-07 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US6071979A (en) * 1994-06-30 2000-06-06 Kimberly-Clark Worldwide, Inc. Photoreactor composition method of generating a reactive species and applications therefor
US6099628A (en) * 1996-03-29 2000-08-08 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6211383B1 (en) 1993-08-05 2001-04-03 Kimberly-Clark Worldwide, Inc. Nohr-McDonald elimination reaction
US6228157B1 (en) 1998-07-20 2001-05-08 Ronald S. Nohr Ink jet ink compositions
US6242057B1 (en) 1994-06-30 2001-06-05 Kimberly-Clark Worldwide, Inc. Photoreactor composition and applications therefor
US6265458B1 (en) 1998-09-28 2001-07-24 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6277897B1 (en) 1998-06-03 2001-08-21 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6294698B1 (en) 1999-04-16 2001-09-25 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6331056B1 (en) 1999-02-25 2001-12-18 Kimberly-Clark Worldwide, Inc. Printing apparatus and applications therefor
US6368396B1 (en) 1999-01-19 2002-04-09 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
US6368395B1 (en) 1999-05-24 2002-04-09 Kimberly-Clark Worldwide, Inc. Subphthalocyanine colorants, ink compositions, and method of making the same
US6486227B2 (en) 2000-06-19 2002-11-26 Kimberly-Clark Worldwide, Inc. Zinc-complex photoinitiators and applications therefor
US6503559B1 (en) 1998-06-03 2003-01-07 Kimberly-Clark Worldwide, Inc. Neonanoplasts and microemulsion technology for inks and ink jet printing
US6524379B2 (en) 1997-08-15 2003-02-25 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285744A (en) * 1963-04-04 1966-11-15 Horizons Inc Photography
US3527639A (en) * 1965-09-30 1970-09-08 Kalle Ag Light-sensitive composition utilizing anthraquinone derivatives as optical sensitizers
US3892569A (en) * 1972-12-04 1975-07-01 Gen Film Dev Corp Photosensitive sheets comprising organic dyes and sensitizers
US4251622A (en) * 1973-05-25 1981-02-17 Nippon Paint Co., Ltd. Photo-sensitive composition for dry formation of image
JPS50131517A (fr) * 1974-04-03 1975-10-17
US4241166A (en) * 1978-02-24 1980-12-23 Hoechst Aktiengesellschaft Photopolymerizable composition comprising a monoazo dye as contrast colorant
US6127073A (en) * 1993-08-05 2000-10-03 Kimberly-Clark Worldwide, Inc. Method for concealing information and document for securely communicating concealed information
US6211383B1 (en) 1993-08-05 2001-04-03 Kimberly-Clark Worldwide, Inc. Nohr-McDonald elimination reaction
US5643701A (en) * 1993-08-05 1997-07-01 Kimberly-Clark Corporation Electrophotgraphic process utilizing mutable colored composition
US5645964A (en) * 1993-08-05 1997-07-08 Kimberly-Clark Corporation Digital information recording media and method of using same
US6017471A (en) * 1993-08-05 2000-01-25 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US5683843A (en) * 1993-08-05 1997-11-04 Kimberly-Clark Corporation Solid colored composition mutable by ultraviolet radiation
US5908495A (en) * 1993-08-05 1999-06-01 Nohr; Ronald Sinclair Ink for ink jet printers
US6060223A (en) * 1993-08-05 2000-05-09 Kimberly-Clark Worldwide, Inc. Plastic article for colored printing and method for printing on a colored plastic article
US5700850A (en) * 1993-08-05 1997-12-23 Kimberly-Clark Worldwide Colorant compositions and colorant stabilizers
US6060200A (en) * 1993-08-05 2000-05-09 Kimberly-Clark Worldwide, Inc. Photo-erasable data processing forms and methods
US5721287A (en) * 1993-08-05 1998-02-24 Kimberly-Clark Worldwide, Inc. Method of mutating a colorant by irradiation
US5733693A (en) * 1993-08-05 1998-03-31 Kimberly-Clark Worldwide, Inc. Method for improving the readability of data processing forms
US5865471A (en) * 1993-08-05 1999-02-02 Kimberly-Clark Worldwide, Inc. Photo-erasable data processing forms
US5858586A (en) * 1993-08-05 1999-01-12 Kimberly-Clark Corporation Digital information recording media and method of using same
US5773182A (en) * 1993-08-05 1998-06-30 Kimberly-Clark Worldwide, Inc. Method of light stabilizing a colorant
US6054256A (en) * 1993-08-05 2000-04-25 Kimberly-Clark Worldwide, Inc. Method and apparatus for indicating ultraviolet light exposure
US5643356A (en) * 1993-08-05 1997-07-01 Kimberly-Clark Corporation Ink for ink jet printers
US5616443A (en) * 1993-08-05 1997-04-01 Kimberly-Clark Corporation Substrate having a mutable colored composition thereon
US6120949A (en) * 1993-08-05 2000-09-19 Kimberly-Clark Worldwide, Inc. Photoerasable paint and method for using photoerasable paint
US6066439A (en) * 1993-08-05 2000-05-23 Kimberly-Clark Worldwide, Inc. Instrument for photoerasable marking
US6342305B1 (en) 1993-09-10 2002-01-29 Kimberly-Clark Corporation Colorants and colorant modifiers
US6071979A (en) * 1994-06-30 2000-06-06 Kimberly-Clark Worldwide, Inc. Photoreactor composition method of generating a reactive species and applications therefor
US6090236A (en) * 1994-06-30 2000-07-18 Kimberly-Clark Worldwide, Inc. Photocuring, articles made by photocuring, and compositions for use in photocuring
US6242057B1 (en) 1994-06-30 2001-06-05 Kimberly-Clark Worldwide, Inc. Photoreactor composition and applications therefor
US5709955A (en) * 1994-06-30 1998-01-20 Kimberly-Clark Corporation Adhesive composition curable upon exposure to radiation and applications therefor
US5686503A (en) * 1994-06-30 1997-11-11 Kimberly-Clark Corporation Method of generating a reactive species and applications therefor
US5685754A (en) * 1994-06-30 1997-11-11 Kimberly-Clark Corporation Method of generating a reactive species and polymer coating applications therefor
US6008268A (en) * 1994-10-21 1999-12-28 Kimberly-Clark Worldwide, Inc. Photoreactor composition, method of generating a reactive species, and applications therefor
US6017661A (en) * 1994-11-09 2000-01-25 Kimberly-Clark Corporation Temporary marking using photoerasable colorants
US6235095B1 (en) 1994-12-20 2001-05-22 Ronald Sinclair Nohr Ink for inkjet printers
US5786132A (en) * 1995-06-05 1998-07-28 Kimberly-Clark Corporation Pre-dyes, mutable dye compositions, and methods of developing a color
US5681380A (en) * 1995-06-05 1997-10-28 Kimberly-Clark Worldwide, Inc. Ink for ink jet printers
US6063551A (en) * 1995-06-05 2000-05-16 Kimberly-Clark Worldwide, Inc. Mutable dye composition and method of developing a color
US5739175A (en) * 1995-06-05 1998-04-14 Kimberly-Clark Worldwide, Inc. Photoreactor composition containing an arylketoalkene wavelength-specific sensitizer
US5849411A (en) * 1995-06-05 1998-12-15 Kimberly-Clark Worldwide, Inc. Polymer film, nonwoven web and fibers containing a photoreactor composition
US5747550A (en) * 1995-06-05 1998-05-05 Kimberly-Clark Worldwide, Inc. Method of generating a reactive species and polymerizing an unsaturated polymerizable material
US5811199A (en) * 1995-06-05 1998-09-22 Kimberly-Clark Worldwide, Inc. Adhesive compositions containing a photoreactor composition
US5798015A (en) * 1995-06-05 1998-08-25 Kimberly-Clark Worldwide, Inc. Method of laminating a structure with adhesive containing a photoreactor composition
US5837429A (en) * 1995-06-05 1998-11-17 Kimberly-Clark Worldwide Pre-dyes, pre-dye compositions, and methods of developing a color
US6033465A (en) * 1995-06-28 2000-03-07 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US6168655B1 (en) 1995-11-28 2001-01-02 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5885337A (en) * 1995-11-28 1999-03-23 Nohr; Ronald Sinclair Colorant stabilizers
US5782963A (en) * 1996-03-29 1998-07-21 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6168654B1 (en) 1996-03-29 2001-01-02 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6099628A (en) * 1996-03-29 2000-08-08 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5855655A (en) * 1996-03-29 1999-01-05 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5891229A (en) * 1996-03-29 1999-04-06 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6524379B2 (en) 1997-08-15 2003-02-25 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
US6277897B1 (en) 1998-06-03 2001-08-21 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6503559B1 (en) 1998-06-03 2003-01-07 Kimberly-Clark Worldwide, Inc. Neonanoplasts and microemulsion technology for inks and ink jet printing
US6228157B1 (en) 1998-07-20 2001-05-08 Ronald S. Nohr Ink jet ink compositions
US6265458B1 (en) 1998-09-28 2001-07-24 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6368396B1 (en) 1999-01-19 2002-04-09 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
US6331056B1 (en) 1999-02-25 2001-12-18 Kimberly-Clark Worldwide, Inc. Printing apparatus and applications therefor
US6294698B1 (en) 1999-04-16 2001-09-25 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6368395B1 (en) 1999-05-24 2002-04-09 Kimberly-Clark Worldwide, Inc. Subphthalocyanine colorants, ink compositions, and method of making the same
US6486227B2 (en) 2000-06-19 2002-11-26 Kimberly-Clark Worldwide, Inc. Zinc-complex photoinitiators and applications therefor

Also Published As

Publication number Publication date
NL54339C (fr)
BE439901A (fr)
CH218097A (de) 1941-11-30
CH220433A (de) 1942-03-31
FR870244A (fr) 1942-03-05

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