Carbonless developer sheet

Details Carbonless developer sheet Carbonless developer sheet

1984-08-13

1986-03-25

Hess, Bruce H.

Recorders

Record receiver deforming

346216, 346217, 346221, 346224, 346225, 427150, 427151, B41M 516, B41M 522

Patent

active

045786909

ABSTRACT:
Disclosed is a recording sheet comprising a support having a layer of color developer capable of reacting with oil-soluble, basic, chromogenic dyes to produce rapidly a mark of improved color intensity and improved fade resistance. In addition to the conventionally used constituents such as binders, whitening agents, and fillers, the coating comprises (a) a phenol-formaldehyde condensate oligomer mixture, (b) an aromatic carboxylic acid, and (c) an inorganic magnesium compound, preferably magnesium oxide or magnesium hydroxide. Best results are obtained when components a, b, and c are present at ratios of 50 parts oligomer, 1.0-2.5 parts acid, and 10-40 parts magnesium compound.

REFERENCES:
patent: 3874895 (1975-04-01), Hayashi et al.
patent: 4216299 (1980-08-01), Kikuga et al.
patent: 4263047 (1981-04-01), Miyamoto et al.
patent: 4400492 (1983-08-01), Asano et al.

Affiliated with

Also associated with

Rating

Carbonless developer sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbonless developer sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbonless developer sheet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-633987