JPS56139992A - Developer for pressure-sensitive duplicating paper - Google Patents

Developer for pressure-sensitive duplicating paper

Info

Publication number
JPS56139992A
JPS56139992A JP4354780A JP4354780A JPS56139992A JP S56139992 A JPS56139992 A JP S56139992A JP 4354780 A JP4354780 A JP 4354780A JP 4354780 A JP4354780 A JP 4354780A JP S56139992 A JPS56139992 A JP S56139992A
Authority
JP
Japan
Prior art keywords
formaldehyde
reaction
phenol
duplicating 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.)
Granted
Application number
JP4354780A
Other languages
Japanese (ja)
Other versions
JPS614673B2 (en
Inventor
Makoto Asano
Saburo Kawashima
Yoshimitsu Tanabe
Naomichi Murakami
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu 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
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP4354780A priority Critical patent/JPS56139992A/en
Priority to US06/247,123 priority patent/US4400492A/en
Priority to GB8109452A priority patent/GB2073226B/en
Priority to DE19813112195 priority patent/DE3112195A1/en
Publication of JPS56139992A publication Critical patent/JPS56139992A/en
Publication of JPS614673B2 publication Critical patent/JPS614673B2/ja
Granted 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
    • B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)

Abstract

PURPOSE:To improve the color developing property and the resistance against an unusual change during preservation of the duplicating paper, by a method wherein phenol having at least three functionalities is blended with formaldehyde of condensate. CONSTITUTION:A reaction intermediate is obtained by the reaction between formaldehyde and a p-substituted phenol having a small reactivity with formaldehyde under an acidic condition until 70-100% formaldehyde is consumed. Then a phenol having at least three functionalities is added to the reaction intermediate and they are reacted with formaldehyde remaining in the system to complete the reaction. The pressure-sensitive duplicating paper coated with microcapsules containing a developer prepared as above has a high solubility in a solvent contained in the microcapsule and therefore its color intensity immediately after the color development is remarkably high.
JP4354780A 1980-03-28 1980-04-04 Developer for pressure-sensitive duplicating paper Granted JPS56139992A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4354780A JPS56139992A (en) 1980-04-04 1980-04-04 Developer for pressure-sensitive duplicating paper
US06/247,123 US4400492A (en) 1980-04-04 1981-03-24 Color-developer for pressure-sensitive recording sheets
GB8109452A GB2073226B (en) 1980-03-28 1981-03-26 Colour-developer for pressure-sensitive recording sheets
DE19813112195 DE3112195A1 (en) 1980-03-28 1981-03-27 "COLOR DEVELOPER FOR PRINT-SENSITIVE RECORDING FILMS"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4354780A JPS56139992A (en) 1980-04-04 1980-04-04 Developer for pressure-sensitive duplicating paper

Publications (2)

Publication Number Publication Date
JPS56139992A true JPS56139992A (en) 1981-10-31
JPS614673B2 JPS614673B2 (en) 1986-02-12

Family

ID=12666772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4354780A Granted JPS56139992A (en) 1980-03-28 1980-04-04 Developer for pressure-sensitive duplicating paper

Country Status (1)

Country Link
JP (1) JPS56139992A (en)

Also Published As

Publication number Publication date
JPS614673B2 (en) 1986-02-12

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