CA969960A - Pressure sensitive copying paper - Google Patents

Pressure sensitive copying paper

Info

Publication number
CA969960A
CA969960A CA130,041A CA130041A CA969960A CA 969960 A CA969960 A CA 969960A CA 130041 A CA130041 A CA 130041A CA 969960 A CA969960 A CA 969960A
Authority
CA
Canada
Prior art keywords
pressure sensitive
copying paper
sensitive copying
paper
pressure
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
CA130,041A
Other versions
CA130041S (en
Inventor
Kenji Yamamoto
Mutsuo Terayama
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.)
Yamamoto Chemicals Inc
Original Assignee
Yamamoto Chemicals Inc
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 JP45112052A external-priority patent/JPS4916725B1/ja
Application filed by Yamamoto Chemicals Inc filed Critical Yamamoto Chemicals Inc
Application granted granted Critical
Publication of CA969960A publication Critical patent/CA969960A/en
Expired 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
    • B41M5/132—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
    • 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
    • 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
    • C09B57/00—Other synthetic dyes of known constitution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
CA130,041A 1970-12-15 1971-12-13 Pressure sensitive copying paper Expired CA969960A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP45112052A JPS4916725B1 (en) 1970-12-15 1970-12-15
US00208432A US3825544A (en) 1970-12-15 1971-12-15 7 piperazinofluorans
US00310586A US3844817A (en) 1970-12-15 1972-11-29 Pressure sensitive copying paper

Publications (1)

Publication Number Publication Date
CA969960A true CA969960A (en) 1975-06-24

Family

ID=27312163

Family Applications (1)

Application Number Title Priority Date Filing Date
CA130,041A Expired CA969960A (en) 1970-12-15 1971-12-13 Pressure sensitive copying paper

Country Status (3)

Country Link
US (2) US3825544A (en)
CA (1) CA969960A (en)
GB (1) GB1338179A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH585110A5 (en) * 1974-01-29 1977-02-28 Ciba Geigy Ag
DE3779866D1 (en) * 1986-10-31 1992-07-23 Ciba Geigy Ag FLUORINE COLOR IMAGE MIXTURE AND ITS USE IN RECORDING MATERIALS.
US5149689A (en) * 1986-10-31 1992-09-22 Ciba-Geigy Corporation Fluoran color former mixture and use thereof in recording materials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649649A (en) * 1967-07-10 1972-03-14 Nisso Kako Co Ltd Fluoran derivatives and preparation thereof
ES379854A1 (en) * 1969-05-23 1972-09-01 Fuji Photo Film Co Ltd Pressure-sensitive copying paper
US3694247A (en) * 1970-05-11 1972-09-26 Plastic Coating Corp Heat-sensitive copying material

Also Published As

Publication number Publication date
GB1338179A (en) 1973-11-21
US3844817A (en) 1974-10-29
US3825544A (en) 1974-07-23

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