GB522672A - Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance - Google Patents

Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance

Info

Publication number
GB522672A
GB522672A GB16230/39A GB1623039A GB522672A GB 522672 A GB522672 A GB 522672A GB 16230/39 A GB16230/39 A GB 16230/39A GB 1623039 A GB1623039 A GB 1623039A GB 522672 A GB522672 A GB 522672A
Authority
GB
United Kingdom
Prior art keywords
white
yellowish
substances
materials
tint
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
GB16230/39A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB16230/39A priority Critical patent/GB522672A/en
Publication of GB522672A publication Critical patent/GB522672A/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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/614—Optical bleaching or brightening in aqueous solvents

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

522,672. Paper. MEYER, H. June 2, 1939, [Class 96] [Also in Groups XL and IV] Paper and articles made thereof which are of an off-white or yellowish tint are treated during or after manufacture by immersion or other methods with a solution of a compound which exhibits a blue fluorescence, preferably a compound of the coumarin group, e.g., methyl umbelliferon in order to obtain a pure white appearance. In an example a solution containing borax and methyl umbelliferon in water is used.
GB16230/39A 1939-06-02 1939-06-02 Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance Expired GB522672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16230/39A GB522672A (en) 1939-06-02 1939-06-02 Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16230/39A GB522672A (en) 1939-06-02 1939-06-02 Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance

Publications (1)

Publication Number Publication Date
GB522672A true GB522672A (en) 1940-06-24

Family

ID=10073522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16230/39A Expired GB522672A (en) 1939-06-02 1939-06-02 Treating articles, substances or materials of a yellowish or off-white tint so as to obtain a pure white appearance

Country Status (1)

Country Link
GB (1) GB522672A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746569C (en) * 1940-10-17 1944-12-14 Ig Farbenindustrie Ag Whitening agent for organic matter
US2424778A (en) * 1943-05-20 1947-07-29 Lever Brothers Ltd Composition for and method of whitening textiles with a blue fluorescent material and ultramarine
US2590485A (en) * 1939-06-02 1952-03-25 Lever Brothers Ltd Process of treating yellowish or off-white materials to obtain a white appearance using umbelliferone or methyl umbelliferone
US2610152A (en) * 1946-06-14 1952-09-09 Ciba Ltd Detergent compositions containing amino-coumarins
US2616855A (en) * 1948-01-15 1952-11-04 Procter & Gamble Detergent composition
US2620282A (en) * 1952-12-02 Fibrous synthetic material of
US2643197A (en) * 1947-04-03 1953-06-23 Lever Brothers Ltd Fluorescent alkoxy benzoyl derivatives of 4,4' diamino stilbene-2,2' disulfonic acidand detergent compositions containing same
US2649385A (en) * 1953-08-18 Optically bleached fibrous material
US2661305A (en) * 1949-11-01 1953-12-01 Holliday Co Ltd L B Method for improving the brightness of textile materials and product
US2673186A (en) * 1948-01-15 1954-03-23 Procter & Gamble Alkaline detergent composition
US2710285A (en) * 1951-08-11 1955-06-07 Davics Young Soap Company Paper coating composition containing an optical brightener
DE971467C (en) * 1952-04-10 1959-01-29 Photographica Developer for photographic silver halide papers
DE972067C (en) * 1941-02-18 1959-05-14 Agfa Ag Process for increasing the whiteness of photographic reflective images
DE977141C (en) * 1941-01-15 1965-04-01 Bayer Ag Use of detergents containing fluorescent compounds
DE1222014B (en) * 1960-02-05 1966-08-04 Ciba Geigy Use of coumarin derivatives as optical brighteners
EP3249501A4 (en) * 2015-01-08 2018-08-22 Boe Technology Group Co. Ltd. Touch screen and preparation method therefor, and touch display screen

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620282A (en) * 1952-12-02 Fibrous synthetic material of
US2649385A (en) * 1953-08-18 Optically bleached fibrous material
US2590485A (en) * 1939-06-02 1952-03-25 Lever Brothers Ltd Process of treating yellowish or off-white materials to obtain a white appearance using umbelliferone or methyl umbelliferone
DE746569C (en) * 1940-10-17 1944-12-14 Ig Farbenindustrie Ag Whitening agent for organic matter
DE977141C (en) * 1941-01-15 1965-04-01 Bayer Ag Use of detergents containing fluorescent compounds
DE972067C (en) * 1941-02-18 1959-05-14 Agfa Ag Process for increasing the whiteness of photographic reflective images
US2424778A (en) * 1943-05-20 1947-07-29 Lever Brothers Ltd Composition for and method of whitening textiles with a blue fluorescent material and ultramarine
DE963268C (en) * 1946-06-14 1957-05-02 Ciba Geigy Process for washing nitrogen-containing, fully synthetic, fibrous or film-shaped materials
US2610152A (en) * 1946-06-14 1952-09-09 Ciba Ltd Detergent compositions containing amino-coumarins
DE923422C (en) * 1946-06-14 1955-02-14 Ciba Geigy Process for finishing fiber materials
US2643197A (en) * 1947-04-03 1953-06-23 Lever Brothers Ltd Fluorescent alkoxy benzoyl derivatives of 4,4' diamino stilbene-2,2' disulfonic acidand detergent compositions containing same
US2616855A (en) * 1948-01-15 1952-11-04 Procter & Gamble Detergent composition
US2673186A (en) * 1948-01-15 1954-03-23 Procter & Gamble Alkaline detergent composition
US2661305A (en) * 1949-11-01 1953-12-01 Holliday Co Ltd L B Method for improving the brightness of textile materials and product
US2710285A (en) * 1951-08-11 1955-06-07 Davics Young Soap Company Paper coating composition containing an optical brightener
DE971467C (en) * 1952-04-10 1959-01-29 Photographica Developer for photographic silver halide papers
DE1222014B (en) * 1960-02-05 1966-08-04 Ciba Geigy Use of coumarin derivatives as optical brighteners
EP3249501A4 (en) * 2015-01-08 2018-08-22 Boe Technology Group Co. Ltd. Touch screen and preparation method therefor, and touch display screen

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