GB526674A - Process for producing coloured unsized paper - Google Patents

Process for producing coloured unsized paper

Info

Publication number
GB526674A
GB526674A GB212039A GB212039A GB526674A GB 526674 A GB526674 A GB 526674A GB 212039 A GB212039 A GB 212039A GB 212039 A GB212039 A GB 212039A GB 526674 A GB526674 A GB 526674A
Authority
GB
United Kingdom
Prior art keywords
per cent
coloured
paper
lime
pulp
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
GB212039A
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.)
GEIGY COLOUR Co Ltd
JAMES KEATON
Original Assignee
GEIGY COLOUR Co Ltd
JAMES KEATON
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 GEIGY COLOUR Co Ltd, JAMES KEATON filed Critical GEIGY COLOUR Co Ltd
Priority to GB212039A priority Critical patent/GB526674A/en
Publication of GB526674A publication Critical patent/GB526674A/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
    • D21H21/28—Colorants ; Pigments or opacifying agents

Landscapes

  • Paper (AREA)

Abstract

526,674. Paper. GEIGY COLOUR CO., Ltd., and KEATON, J. Jan. 21, 1939, No. 2120. [Class 96] [Also in Groups III and IV] Coloured unsized paper is obtained by incorporating with the pulp in the beater a coloured organic or inorganic pigment and a reaction product of lime and aluminium sulphate formed within the pH range of 5.5 to 8. In an example, 1 part by weight of lime is slaked and a 10 per cent. aqueous solution of about 4 parts of alum is added gradually with stirring, the exact proportions being preferably adjusted until the pH is 7; 2 parts of a 30 per cent. paste of the product are mixed with 1 part of Irgalite red RN extra, 20 per cent. paste, and the mixture is incorporated with the pulp.
GB212039A 1939-01-21 1939-01-21 Process for producing coloured unsized paper Expired GB526674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB212039A GB526674A (en) 1939-01-21 1939-01-21 Process for producing coloured unsized paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB212039A GB526674A (en) 1939-01-21 1939-01-21 Process for producing coloured unsized paper

Publications (1)

Publication Number Publication Date
GB526674A true GB526674A (en) 1940-09-24

Family

ID=9733935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB212039A Expired GB526674A (en) 1939-01-21 1939-01-21 Process for producing coloured unsized paper

Country Status (1)

Country Link
GB (1) GB526674A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786758A (en) * 1954-08-26 1957-03-26 Columbia Southern Chem Corp Method of preparing siliceous pigment and method of preparing paper from such pigment
WO2004090228A1 (en) * 2003-04-14 2004-10-21 Ciba Specialty Chemicals Holding Inc. Paper coating compositions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786758A (en) * 1954-08-26 1957-03-26 Columbia Southern Chem Corp Method of preparing siliceous pigment and method of preparing paper from such pigment
WO2004090228A1 (en) * 2003-04-14 2004-10-21 Ciba Specialty Chemicals Holding Inc. Paper coating compositions
US8062415B2 (en) 2003-04-14 2011-11-22 Basf Se Paper coating compositions

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