EP0234394A3 - Highly concentrated stable solutions of dyes - Google Patents

Highly concentrated stable solutions of dyes Download PDF

Info

Publication number
EP0234394A3
EP0234394A3 EP87101795A EP87101795A EP0234394A3 EP 0234394 A3 EP0234394 A3 EP 0234394A3 EP 87101795 A EP87101795 A EP 87101795A EP 87101795 A EP87101795 A EP 87101795A EP 0234394 A3 EP0234394 A3 EP 0234394A3
Authority
EP
European Patent Office
Prior art keywords
dyes
highly concentrated
stable solutions
concentrated stable
solutions
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.)
Granted
Application number
EP87101795A
Other languages
German (de)
Other versions
EP0234394B1 (en
EP0234394A2 (en
Inventor
Udo Dr. Eckstein
Hubertus Dr. Psaar
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.)
Bayer AG
Feldmuehle AG
Original Assignee
Bayer 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
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0234394A2 publication Critical patent/EP0234394A2/en
Publication of EP0234394A3 publication Critical patent/EP0234394A3/en
Application granted granted Critical
Publication of EP0234394B1 publication Critical patent/EP0234394B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B41M5/165—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 characterised by the use of microcapsules; Special solvents for incorporating the ingredients
    • B41M5/1655—Solvents
    • 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
    • B41M5/1366—Organic colour formers, e.g. leuco dyes characterised solely by tri (aryl or hetaryl)methane derivatives
EP87101795A 1986-02-21 1987-02-10 Highly concentrated stable solutions of dyes Expired - Lifetime EP0234394B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863605552 DE3605552A1 (en) 1986-02-21 1986-02-21 HIGHLY CONCENTRATED, STABLE SOLUTIONS OF COLOR IMAGES
DE3605552 1986-02-21

Publications (3)

Publication Number Publication Date
EP0234394A2 EP0234394A2 (en) 1987-09-02
EP0234394A3 true EP0234394A3 (en) 1989-03-22
EP0234394B1 EP0234394B1 (en) 1991-04-24

Family

ID=6294596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101795A Expired - Lifetime EP0234394B1 (en) 1986-02-21 1987-02-10 Highly concentrated stable solutions of dyes

Country Status (4)

Country Link
US (2) US4783196A (en)
EP (1) EP0234394B1 (en)
JP (1) JP2566938B2 (en)
DE (2) DE3605552A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605552A1 (en) * 1986-02-21 1987-08-27 Bayer Ag HIGHLY CONCENTRATED, STABLE SOLUTIONS OF COLOR IMAGES
DE3707548A1 (en) * 1987-03-10 1988-10-06 Bayer Ag COLOR IMAGES, THEIR PRODUCTION AND USE
DE3727878A1 (en) * 1987-08-21 1989-03-02 Bayer Ag TRIARYLMETHANE COLOR IMAGE
DE3735976A1 (en) * 1987-10-23 1989-05-03 Ruetgerswerke Ag SOLUTIONS OF COLORED IMAGES, THEIR PRODUCTION AND USE
US5233048A (en) * 1989-12-21 1993-08-03 Bayer Aktiengesellschaft Triarylmethane color formers
DE3942227A1 (en) * 1989-12-21 1991-06-27 Bayer Ag TRIARYLMETHANE COLOR IMAGE
GB9113086D0 (en) * 1991-06-18 1991-08-07 Wiggins Teape Group Ltd Solvent compositions for use in pressure-sensitive copying paper
EP0573210B2 (en) * 1992-06-04 2005-11-23 Arjo Wiggins Limited Pressure-sensitive record material
GB9221621D0 (en) * 1992-10-15 1992-11-25 Wiggins Teape Group Ltd Solvents for use in pressure-sensitive record material
GB9313790D0 (en) * 1993-07-03 1993-08-18 Wiggins Teape Group The Ltd Pressure-sensitive copying material
GB9318369D0 (en) * 1993-09-04 1993-10-20 Carrs Paper Ltd Pressure-sensitive record materials
GB9414637D0 (en) * 1994-07-20 1994-09-07 Wiggins Teape Group The Limite Presure-sensitive copying material
FR2723032B1 (en) 1994-07-26 1996-11-22 Copigraph Sa NOVEL ORGANIC SOLVENT FOR MICROCAPSULES USEFUL IN PARTICULAR FOR PRODUCING PRESSURE SENSITIVE SELF-COPYING PAPER AND LAPRESSION SENSITIVE PAPER COATED WITH SUCH MICROCAPSULES
FR2727633A1 (en) 1994-12-02 1996-06-07 Copigraph MICROCAPSULES CONTAINING AS A SOLVENT A TERPENIC DERIVATIVE OR ABIETIC ACID AND PRESSURE-SENSITIVE PAPERS COATED WITH SUCH MICROCAPSULES
DE10051194A1 (en) 2000-10-16 2002-04-25 Bayer Ag Microcapsules with walls made of polyurea
DE10051190A1 (en) 2000-10-16 2002-04-25 Bayer Ag Micro-capsules for production of carbon-less copying paper, comprise micro-capsules with walls consisting of reaction products of polyisocyanate with guanidine compounds and amine compounds
US8053494B2 (en) * 2003-10-06 2011-11-08 Nocopi Technologies, Inc. Invisible ink and scratch pad
US20050165131A1 (en) * 2003-10-06 2005-07-28 Terry Stovold Invisible ink
WO2005037905A1 (en) * 2003-10-06 2005-04-28 Nocopi Technologies, Inc. Invisible ink
WO2019170222A1 (en) 2018-03-06 2019-09-12 Symrise Ag Encapsulated active substance deposition on hairs and textile
WO2019206404A1 (en) 2018-04-24 2019-10-31 Symrise Ag Core-shell capsules prepared with linear and cyclic aliphatic polyisocyanates

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294055A1 (en) * 1974-12-10 1976-07-09 Ciba Geigy Ag Diamino-triphenyl-carbinol ethers for use as colour formers - in (thermo)graphic material, giving blue to green colours with acid developer (BE090676)
FR2408465A1 (en) * 1977-11-10 1979-06-08 Bayer Ag PRESSURE AND HEAT SENSITIVE RECORDING SUPPORT
US4254032A (en) * 1978-04-24 1981-03-03 Ciba-Geigy Corporation Carbazolylmethane compounds
GB2075539A (en) * 1980-04-16 1981-11-18 Ciba Geigy Ag Stable, Highly Concentrated Colour Former Solutions
US4327939A (en) * 1980-06-16 1982-05-04 Frye Copysystems, Inc. Chemical carbonless copy paper and image receptor medium therefor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95045C (en) * 1953-06-30
US2800457A (en) * 1953-06-30 1957-07-23 Ncr Co Oil-containing microscopic capsules and method of making them
AU513026B2 (en) * 1977-08-02 1980-11-06 Vinca Limited Colour developer compositions and systems involving use thereof
US4369326A (en) * 1978-04-24 1983-01-18 Ciba-Geigy Corporation Carbazolylmethane compounds
FR2453026A1 (en) * 1979-02-23 1980-10-31 Inca Ltd MATERIAL FOR REPROGRAPHY BY APPLICATION OF PRESSURE, HEAT OR ELECTRIC DISCHARGE
US4343494A (en) * 1980-06-16 1982-08-10 Frye Copysystems, Inc. Carbonless copy paper system
JPS5798391A (en) * 1980-12-12 1982-06-18 Mitsui Toatsu Chem Inc Microcapsule liquid containing coloring matter for recording material
US4737587A (en) * 1985-11-25 1988-04-12 Mitsubishi Paper Mills, Ltd. Colorless carbazole dyes for recording materials
CH664735A5 (en) * 1986-01-23 1988-03-31 Ciba Geigy Ag METHOD FOR PRODUCING A PRESSURE-SENSITIVE RECORDING MATERIAL.
DE3605552A1 (en) * 1986-02-21 1987-08-27 Bayer Ag HIGHLY CONCENTRATED, STABLE SOLUTIONS OF COLOR IMAGES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294055A1 (en) * 1974-12-10 1976-07-09 Ciba Geigy Ag Diamino-triphenyl-carbinol ethers for use as colour formers - in (thermo)graphic material, giving blue to green colours with acid developer (BE090676)
FR2408465A1 (en) * 1977-11-10 1979-06-08 Bayer Ag PRESSURE AND HEAT SENSITIVE RECORDING SUPPORT
US4254032A (en) * 1978-04-24 1981-03-03 Ciba-Geigy Corporation Carbazolylmethane compounds
GB2075539A (en) * 1980-04-16 1981-11-18 Ciba Geigy Ag Stable, Highly Concentrated Colour Former Solutions
US4327939A (en) * 1980-06-16 1982-05-04 Frye Copysystems, Inc. Chemical carbonless copy paper and image receptor medium therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF IMAGING TECHNOLOGY, Band 11, Nr. 5, October 1985, Seiten 224-228, Springfield, Virginia, US; J.E. KASSNER: "Leuco color formers, modern imaging materials" *

Also Published As

Publication number Publication date
JP2566938B2 (en) 1996-12-25
US4783196A (en) 1988-11-08
JPS62199658A (en) 1987-09-03
EP0234394B1 (en) 1991-04-24
DE3605552A1 (en) 1987-08-27
EP0234394A2 (en) 1987-09-02
US4923641A (en) 1990-05-08
DE3769494D1 (en) 1991-05-29

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Inventor name: ECKSTEIN, UDO, DR.

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