GB631040A - The manufacture of dyestuffs of the xanthrene series - Google Patents

The manufacture of dyestuffs of the xanthrene series

Info

Publication number
GB631040A
GB631040A GB1903847A GB1903847A GB631040A GB 631040 A GB631040 A GB 631040A GB 1903847 A GB1903847 A GB 1903847A GB 1903847 A GB1903847 A GB 1903847A GB 631040 A GB631040 A GB 631040A
Authority
GB
United Kingdom
Prior art keywords
fluoran
xanthrene
dyestuffs
manufacture
series
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
GB1903847A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1903847A priority Critical patent/GB631040A/en
Publication of GB631040A publication Critical patent/GB631040A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes

Abstract

Dyes are made by disulphonating a 3.6-di-(o-alkyl- or o : p-dialkyl-anilino)-fluoran. The products dye wool red to violet shades, and may contain 1.8-2.4 sulphonic groups per molecule. Examples describe the disulphonation under varying conditions of 3.6-di-(m : 4-xylidino)-fluoran. 3.6-Di-(o-toluidino)-fluoran is also referred to as a starting material.
GB1903847A 1947-07-16 1947-07-16 The manufacture of dyestuffs of the xanthrene series Expired GB631040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1903847A GB631040A (en) 1947-07-16 1947-07-16 The manufacture of dyestuffs of the xanthrene series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1903847A GB631040A (en) 1947-07-16 1947-07-16 The manufacture of dyestuffs of the xanthrene series

Publications (1)

Publication Number Publication Date
GB631040A true GB631040A (en) 1949-10-26

Family

ID=10122717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1903847A Expired GB631040A (en) 1947-07-16 1947-07-16 The manufacture of dyestuffs of the xanthrene series

Country Status (1)

Country Link
GB (1) GB631040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279656A (en) * 1991-11-15 1994-01-18 Imperial Chemical Industries Plc Xanthene dyes for ink jet printing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279656A (en) * 1991-11-15 1994-01-18 Imperial Chemical Industries Plc Xanthene dyes for ink jet printing

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