GB1202800A - A process for dyeing paper - Google Patents

A process for dyeing paper

Info

Publication number
GB1202800A
GB1202800A GB4706769A GB4706769A GB1202800A GB 1202800 A GB1202800 A GB 1202800A GB 4706769 A GB4706769 A GB 4706769A GB 4706769 A GB4706769 A GB 4706769A GB 1202800 A GB1202800 A GB 1202800A
Authority
GB
United Kingdom
Prior art keywords
formula
paper
dyed
sized
dyeing paper
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
GB4706769A
Inventor
Alfred Frei
Georg Schoefberger
August Schweizer
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.)
Sandoz AG
Original Assignee
Sandoz AG
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
Priority claimed from CH1004267A external-priority patent/CH480422A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Priority to GB4706769A priority Critical patent/GB1202800A/en
Publication of GB1202800A publication Critical patent/GB1202800A/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)
  • Coloring (AREA)

Abstract

1,202,800. Dyeing paper. SANDOZ Ltd. 25 June, 1968, No. 47067/69. Divided out of 1,202,798. Heading D1B. Paper is dyed with a dye of formula (R-NH) 2 -CO in which R is a radical of formula I: or of formula II: or of formula III: In Example I chemically bleached sulphite cellulose in water are beaten in a beater, the dye added and after 15 mins the stock is sized. In Example 2 paper pulp is dyed but not sized.
GB4706769A 1967-07-13 1968-06-25 A process for dyeing paper Expired GB1202800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4706769A GB1202800A (en) 1967-07-13 1968-06-25 A process for dyeing paper

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1004267A CH480422A (en) 1967-07-13 1967-07-13 Concentrated, liquid preparation
CH432568A CH497516A (en) 1967-07-13 1968-03-22 Concentrated, liquid preparation
GB4706769A GB1202800A (en) 1967-07-13 1968-06-25 A process for dyeing paper

Publications (1)

Publication Number Publication Date
GB1202800A true GB1202800A (en) 1970-08-19

Family

ID=10443589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4706769A Expired GB1202800A (en) 1967-07-13 1968-06-25 A process for dyeing paper

Country Status (1)

Country Link
GB (1) GB1202800A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee