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Patent Searching and Data


Title:
PRESSURE-SENSITIVE RECORDING SHEET
Document Type and Number:
Japanese Patent JPH0648021
Kind Code:
A
Abstract:

PURPOSE: To read a colored image using OCR by providing a microcapsule layer, printed locally using an ink containing a coloring agent, where a colored body generates in a near infrared area of 700-1000nm on a support.

CONSTITUTION: A microcapsule containing a coloring agent which does not generate a colored body having a substantially absorptive effect, is manufactured in a near infrared area of 700-1000nm of crystal violet lactone, using a means such as a surface polymerization method. Next, this microcapsule is dispersed in an aqueous solution such as a water-soluble binder to prepare a microcapsule application liquid containing a coloring agent. Further, this microcapsule application liquid is applied to a support such as a top sheet or an intermediate sheet, and then is dried to form a laminated microcapsule layer. After that, a divinylphthalid compound which generates a colored body having an absorptive effect in the near infrared area of 700-1000nm, is locally printed on the microcapsule layer using a means such as offset printing to prepare a pressure-sensitive recording sheet.


Inventors:
SANO MASAJIRO
Application Number:
JP22224992A
Publication Date:
February 22, 1994
Filing Date:
July 30, 1992
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
B41M5/132; (IPC1-7): B41M5/132
Attorney, Agent or Firm:
Tadashi Hagino (3 outside)