GB1429643A - Colour formers - Google Patents
Colour formersInfo
- Publication number
- GB1429643A GB1429643A GB2027172A GB2027172A GB1429643A GB 1429643 A GB1429643 A GB 1429643A GB 2027172 A GB2027172 A GB 2027172A GB 2027172 A GB2027172 A GB 2027172A GB 1429643 A GB1429643 A GB 1429643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- opt
- water
- compound
- heterocyclic
- substd
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
- C07D491/20—Spiro-condensed systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/136—Organic colour formers, e.g. leuco dyes
- B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
-
- 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
- C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/136—Organic colour formers, e.g. leuco dyes
- B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
- B41M5/1455—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring characterised by fluoran compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
Abstract
1429643 Colour formers WIGGINS TEAPE Ltd 27 July 1973 [2 May 1972] 20271/72 Heading C4P [Also in Division D2] A water-soluble colourless colour-former has the general formula wherein R<SP>1</SP> and R<SP>2</SP> each independently represents H or an opt. sub. hydrocarbon radical or forms part of a heterocyclic ring containing the attached N atom, T represents an opt. subs. heterocyclic residue, and ring A may opt. be further substd., said compound containing at least one water-solubilizing group. The compounds may be prepared by reacting a compound with a compound R<SP>10</SP>O-T<SP>1</SP>, wherein R<SP>10</SP> represents H or lower alkyl and T<SP>1</SP> represents an opt. substd. heterocyclic radical, at least one water-solubilizing group being present in the final product, and the reaction being performed in the presence of a suitable condensing agent, preferably sulphuric acid. Images ranging from yellow to black may be obtained in copying systems in which a transfer sheet material can give over 50 legible copies of good stability from a master paper, using the heterographic or spirit-reproducing copying process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2027172A GB1429643A (en) | 1972-05-02 | 1972-05-02 | Colour formers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2027172A GB1429643A (en) | 1972-05-02 | 1972-05-02 | Colour formers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1429643A true GB1429643A (en) | 1976-03-24 |
Family
ID=10143224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2027172A Expired GB1429643A (en) | 1972-05-02 | 1972-05-02 | Colour formers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1429643A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2295391A (en) * | 1994-11-25 | 1996-05-29 | Yamada Chem Co | Chromenopyrazole preparation |
WO2018198919A1 (en) * | 2017-04-28 | 2018-11-01 | 山本化成株式会社 | Compound and ink using same |
-
1972
- 1972-05-02 GB GB2027172A patent/GB1429643A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2295391A (en) * | 1994-11-25 | 1996-05-29 | Yamada Chem Co | Chromenopyrazole preparation |
GB2295391B (en) * | 1994-11-25 | 1998-05-13 | Yamada Chem Co | Process for the preparation of chromenopyrazole compounds and pressure sensitive recording material comprising said compounds |
WO2018198919A1 (en) * | 2017-04-28 | 2018-11-01 | 山本化成株式会社 | Compound and ink using same |
JPWO2018198919A1 (en) * | 2017-04-28 | 2020-03-12 | 山本化成株式会社 | Compound and ink using the same |
JP7213176B2 (en) | 2017-04-28 | 2023-01-26 | 山本化成株式会社 | Compound and ink using the same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |