Pressure sensitive recording unit

Details Pressure sensitive recording unit Pressure sensitive recording unit

1981-12-14

1983-08-16

Hess, Bruce H.

Textiles: manufacturing

427150, 427151, 427152, 4283204, 4283206, 4283208, 428914, B41L 120

Patent

active

043987532

ABSTRACT:
Disclosed is a pressure sensitive recording unit which comprises a single base web sheet and a methine-type dyestuff and an organic oxidizing compound both supported on the single base web sheet, or a combination of first and second base web sheets and the methine-type dyestuff and organic oxidizing compound supported individually on the first and second base web sheets. Such a recording unit includes for example a pressure sensitive recording unit formed in combination of (a) a back-coated topsheet (CB-sheet) making use of microscopic capsules containing a solution obtained by dissolving a methine-type dyestuff in a solvent having a high boiling point and (b) a front-coated undersheet (CF-sheet) carrying an organic oxidizing compound coated thereon. Also disclosed is a pressure sensitive recording unit which includes a base web sheet carrying thereon such a methine-type dyestuff together with a metal ion sequestering agent and/or alkanol amine.

REFERENCES:
patent: 4154463 (1979-05-01), Burri
patent: 4254032 (1981-03-01), Petitpierre et al.

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