FR77342E - Process for improving the whiteness of paper - Google Patents

Process for improving the whiteness of paper

Info

Publication number
FR77342E
FR77342E FR821173A FR821173A FR77342E FR 77342 E FR77342 E FR 77342E FR 821173 A FR821173 A FR 821173A FR 821173 A FR821173 A FR 821173A FR 77342 E FR77342 E FR 77342E
Authority
FR
France
Prior art keywords
whiteness
paper
improving
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR821173A
Other languages
French (fr)
Inventor
Willem Karel Koerber
Jozef Frans Willems
Rene Maurice Hart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Application granted granted Critical
Publication of FR77342E publication Critical patent/FR77342E/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
    • C08K5/3445—Five-membered rings
    • C08K5/3447—Five-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
FR821173A 1957-06-06 1960-03-12 Process for improving the whiteness of paper Expired FR77342E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL217900A NL92774C (en) 1957-06-06 1957-06-06

Publications (1)

Publication Number Publication Date
FR77342E true FR77342E (en) 1962-02-16

Family

ID=19853693

Family Applications (2)

Application Number Title Priority Date Filing Date
FR767201A Expired FR1239314A (en) 1957-06-06 1958-06-05 Process for improving the whiteness of paper
FR821173A Expired FR77342E (en) 1957-06-06 1960-03-12 Process for improving the whiteness of paper

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR767201A Expired FR1239314A (en) 1957-06-06 1958-06-05 Process for improving the whiteness of paper

Country Status (6)

Country Link
US (2) US3047390A (en)
BE (1) BE568156A (en)
DE (2) DE1108560B (en)
FR (2) FR1239314A (en)
GB (1) GB884736A (en)
NL (1) NL92774C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE568156A (en) * 1957-06-06
US3181948A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Method for optical bleaching of coated papers and resultant product
US3181949A (en) * 1958-06-02 1965-05-04 Gevaert Photo Prod Nv Light sensitive elements having optical bleaching compositions coated thereon
NL250327A (en) * 1959-04-08
NL250331A (en) * 1959-04-09
NL251799A (en) * 1959-05-19
CH386436A (en) * 1960-07-28 1965-01-15 Geigy Ag J R Process for the preparation of bis-triazinylaminostilbene compounds
US3434837A (en) * 1964-06-05 1969-03-25 Eastman Kodak Co Photographic element
GB1273085A (en) * 1969-05-12 1972-05-03 Fuji Photo Film Co Ltd Photographic printing paper
FR2030524A5 (en) * 1969-06-03 1970-11-13 Centre Tech Ind Papier
US3959570A (en) * 1969-06-03 1976-05-25 Centre Technique De L'industrie Des Papiers Cartons Et Celluloses Application of precipitates of methylene ureas and products obtained
US4115124A (en) * 1974-09-06 1978-09-19 Eastman Kodak Company Method of immobilizing optical brighteners
NO903004L (en) * 1989-07-21 1991-01-22 Bayer Ag PROCEDURE FOR WHITENING OF PAPER COATING MATERIALS AND WHITENING PREPARATIONS FOR THE PROCEDURE.
GB9101965D0 (en) * 1991-01-30 1991-03-13 Sandoz Ltd Improvements in or relating to organic compounds
DE19500195A1 (en) 1995-01-05 1996-07-11 Bayer Ag Use of white-tinted plastics for tinting paper coating slips and such white-tinted paper coating slips

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR878823A (en) * 1941-02-18 1943-02-04 Ig Farbenindustrie Ag Process for emphasizing whites and the luminous power of the surface color of photographic images
NL58372C (en) * 1941-02-18
US2332038A (en) * 1941-09-23 1943-10-19 Eastman Kodak Co Photographic element
GB669590A (en) * 1949-06-03 1952-04-02 Ilford Ltd Improvements in or relating to a process for improving the whiteness of colour materials
US2762719A (en) * 1949-08-03 1956-09-11 Bayer Ag Textile printing pastes and method of applying
US2723197A (en) * 1951-03-23 1955-11-08 Gen Aniline & Film Corp Silver halide emulsions for black and white prints containing brightening agents
CA582970A (en) * 1955-12-20 1959-09-08 Geigy Wilheim Process for the optical brightening of polyester fibers
BE568156A (en) * 1957-06-06
US2851424A (en) * 1957-06-28 1958-09-09 Switzer Brothers Inc Fluorescent compositions

Also Published As

Publication number Publication date
NL92774C (en) 1959-06-15
FR1239314A (en) 1960-08-26
BE568156A (en)
US3181950A (en) 1965-05-04
GB884736A (en) 1961-12-13
DE1108560B (en) 1961-06-08
DE1149244B (en) 1963-05-22
US3047390A (en) 1962-07-31

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