GB770574A - Colouring compositions containing dyes of the triarylmethane series - Google Patents

Colouring compositions containing dyes of the triarylmethane series

Info

Publication number
GB770574A
GB770574A GB3046/55A GB304655A GB770574A GB 770574 A GB770574 A GB 770574A GB 3046/55 A GB3046/55 A GB 3046/55A GB 304655 A GB304655 A GB 304655A GB 770574 A GB770574 A GB 770574A
Authority
GB
United Kingdom
Prior art keywords
leuco
ethyl
mixed
aqueous
trimethylammonium hydroxide
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
GB3046/55A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB770574A publication Critical patent/GB770574A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10Amino derivatives of triarylmethanes
    • C09B11/12Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/025Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0253Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00Printing
    • Y10S101/29Printing involving a color-forming phenomenon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

Dyestuff compositions for duplicating and typewriting comprise at least one leuco triarylmethane dye as defined below together with a quaternary ammonium hydroxide in quantity sufficient to stabilize the leuco compound against photochemical oxidation, oxidation to the dye taking place after the compositions have been applied to a stratum. The leuco compounds have the formula:- <FORM:0770574/IV(b)/1> wherein X is H or methyl, R represents phenyl, tolyl, xylyl, mononitrophenyl, mono- and dichlorphenyl, 1 - p - phenylamino - naphthyl, 1 - p - monoalkylamino-or dialkylamino - naphthyl, or an aminophenyl or aminotolyl radical, said aminophenyl or aminotolyl radical may have one or both of the hydrogen atoms of their amino groups substituted by alkyl of less than 5 carbon atoms, acetyl, 2 - hydroxyethyl, 2 -cyanoethyl, benzyl, or phenyl, and R1, R2, R3, and R4 represent hydrogen, alkyl of less than five carbon atoms, 2 - hydroxyethyl 2 - cyanoethyl, benzyl or phenyl, said leuco compounds being devoid of sulpho, carboxy, or phenolic hydroxy groups. Preferably, sufficient quaternary ammonium hydroxide is added to give a pH of not less than 8 to a 1 per cent solution of the composition in ethanol at room temperature. The two ingredients are mixed by (1) stirring a solution of the purified leuco compound in an organic solvent with an aqueous solution of the base, (2) mixing both in an organic solvent and precipitating by cooling or diluting with a non-solvent for the leuco compound. (3) forming the leuco compound by alkaline reduction of the dye or by synthesis and mixing with an aqueous solution of the base without isolation. In examples:- (1) the leuco compounds of ethyl violet and crystal violet, prepared by reduction of the commercial colour, are each mixed in ethanol with aqueous benzyl trimethylammonium hydroxide; (2) the neutralized synthesis reaction mixtures from p-diethylaminobenzaldehyde and diethylaniline or N-diethyl - o - toluidine are each mixed with aqueous choline and those from p - diethylaminobenzaldehyde and N - ethyl -N - benzylaniline or N - ethyl - N - (b - hydroxyethyl) - o - toluidine or N - (b - cyanoethyl) - N - methyl - aniline (in this latter case p - dimethylaminobenzaldehyde may replace p-diethylaminobenzaldehyde) are each mixed with aqueous benzyl trimethylammonium hydroxide; (3) di (p-dimethylamino - phenyl) hydrol is condensed with diethylaniline and the separated leuco compound recrystallized from isopropanol in presence of benzyl trimethylammonium hydroxide; (4) di (p - di - n - butylaminophenyl) - methane is converted to the hydrol by action of lead peroxide and this hydrol is condensed with di - n - butylaniline, diethylaniline, N - ethyl - N - methyl - aniline, or N - b - cyanoethyl - N - methyl aniline and the neutralized product is mixed with benzyl trimethylammonium hydroxide; (5) Victoria Blue BO, Brilliant Green, New fuchsine and paraleucaniline, are reduced to their leuco compounds with zinc dust and sodium hydrosulphite and without isolation are admixed with aqueous benzyl trimethylammonium hydroxide, and fuchsine is similarly reduced and admixed with choline; (6) the neutralized condensation products from benzaldehyde and N - ethyl - N - benzylaniline, o - chlorbenzaldehyde and N.N - diethylaniline, p -chlorbenzaldehyde and N.N - dimethylani line, and p - chlorbenzaldehyde and N - ethyl - N - benzylaniline are mixed with benzyl trimethylammonium hydroxide. Other dyes and bases are listed. Examples describe the preparation of colourless transfer sheets for single or multiple reproduction, which may be developed with a chloranil - dioxane - alcohol solution, using compositions comprising the stabilized dyes of the invention, octadecyl and hexadecyl amines, paraffin wax, aluminium stearate, carnauba wax, and "Vaseline" (Registered Trade Mark) and if desired other non-smudging azo dyes.
GB3046/55A 1954-02-03 1955-02-02 Colouring compositions containing dyes of the triarylmethane series Expired GB770574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456880A US2755203A (en) 1954-02-03 1954-02-03 Process of converting a polyamino-triarylmethane dye coating on a base from a stabilized leuco form to a colored form

Publications (1)

Publication Number Publication Date
GB770574A true GB770574A (en) 1957-03-20

Family

ID=26711218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3046/55A Expired GB770574A (en) 1954-02-03 1955-02-02 Colouring compositions containing dyes of the triarylmethane series

Country Status (4)

Country Link
US (1) US2755203A (en)
CH (1) CH346568A (en)
DE (1) DE1036278B (en)
GB (1) GB770574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000272A1 (en) * 1994-06-27 1996-01-04 Basf Aktiengesellschaft Use of leucotriarylmethanes for marking hydrocarbons

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935938A (en) * 1956-04-17 1960-05-10 Eugene Lefebure Methods of copy reproduction
US2934007A (en) * 1957-05-29 1960-04-26 Caribonum Ltd Duplicating machines
US2978352A (en) * 1957-07-25 1961-04-04 Du Pont Production of triarylmethane colors
US2927040A (en) * 1957-08-13 1960-03-01 Davis Chester Non-staining triarylmethane color base and method of printing therewith
US2927041A (en) * 1957-08-13 1960-03-01 Davis Chester Non-staining transfer sheet
US2949377A (en) * 1957-10-30 1960-08-16 Steinhardt Amos Transfer composition containing a triphenylcarbinol compound and precipitated calcium carbonate
US2999026A (en) * 1958-04-03 1961-09-05 Davis Chester Nonstaining pigments and their use
US3021344A (en) * 1959-08-19 1962-02-13 Du Pont Triphenylmethane dyes
DE1128870B (en) * 1960-05-18 1962-05-03 Wilhelm Ritzerfeld Process for the production of copies or printing forms by photothermal means
NL277913A (en) * 1961-05-03
NL120357C (en) * 1961-05-03
NL292921A (en) * 1963-05-17 1900-01-01
US3449379A (en) * 1963-06-26 1969-06-10 Du Pont Triphenylmethane derivatives
US3429900A (en) * 1963-08-26 1969-02-25 Allied Chem Stable triphenyl-methane dye leucos
US3447944A (en) * 1965-12-06 1969-06-03 Sterling Drug Inc Thermographic copying system
JPS5030088B2 (en) * 1973-04-16 1975-09-29
CH626568A5 (en) * 1977-06-10 1981-11-30 Ciba Geigy Ag
USRE30803E (en) * 1977-11-09 1981-11-24 Scott Paper Company Colorless recording paper
USRE30797E (en) * 1977-11-09 1981-11-17 Scott Paper Company Associated dye salts and method of forming colored indicia therewith
US4398753A (en) * 1980-12-26 1983-08-16 Mitsui Toatsu Chemicals, Incorporated Pressure sensitive recording unit
EP3292173A1 (en) * 2015-05-04 2018-03-14 Milliken & Company Leuco triphenylmethane colorants as bluing agents in laundry care compositions
US20180119056A1 (en) * 2016-11-03 2018-05-03 Milliken & Company Leuco Triphenylmethane Colorants As Bluing Agents in Laundry Care Compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548365A (en) * 1948-07-13 1951-04-10 Ncr Co Process for making pressure sensitive record materials
BE492062A (en) * 1948-11-16
BE500662A (en) * 1950-01-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000272A1 (en) * 1994-06-27 1996-01-04 Basf Aktiengesellschaft Use of leucotriarylmethanes for marking hydrocarbons

Also Published As

Publication number Publication date
US2755203A (en) 1956-07-17
DE1036278B (en) 1958-08-14
CH346568A (en) 1960-05-31

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