Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Patent
1994-07-01
1995-12-19
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
503200, 503213, 503215, 503223, 503224, 503225, B41M 5165
Patent
active
054768292
ABSTRACT:
Pressure-sensitive copying material utilizes a blend of rapid- and slow-developing chromogenic materials in vegetable oil solvent and an acid clay or synthetic inorganic color developer. The surface pH of the color developer is not more than 8.7, which gives rise to enhanced image intensity and fade resistance compared with the use of conventional higher color developer surface pH values.
REFERENCES:
patent: 2712507 (1955-07-01), Green
patent: 2730457 (1956-01-01), Green et al.
patent: 2800457 (1957-07-01), Green et al.
patent: 2800458 (1957-07-01), Green et al.
patent: 3016308 (1962-01-01), Macaulay
patent: 3041289 (1962-06-01), Katchen et al.
patent: 3753761 (1973-08-01), Sugahara et al.
patent: 4001140 (1977-01-01), Foris et al.
patent: 4100103 (1978-07-01), Foris et al.
patent: 4105823 (1978-08-01), Hasler et al.
patent: 4154463 (1979-05-01), Burri
patent: 4335013 (1982-06-01), Allart et al.
patent: 4387117 (1983-06-01), Shanton
patent: 4391850 (1983-07-01), Shanton
patent: 4396670 (1983-08-01), Sinclair
patent: 4405371 (1983-09-01), Sugahara et al.
patent: 4611070 (1986-09-01), Oberlinner
patent: 4629800 (1986-12-01), Yonese et al.
patent: 4783196 (1988-11-01), Eckstein et al.
patent: 4859650 (1989-08-01), Hilterhaus et al.
patent: 4923641 (1990-05-01), Eckstein et al.
patent: 5094688 (1992-03-01), Eckstein et al.
patent: 5178949 (1993-01-01), Sakamoto et al.
patent: 5190909 (1993-03-01), Shanton et al.
patent: 5209947 (1993-05-01), Taylor et al.
patent: 5281266 (1994-01-01), Sheiham et al.
patent: 5304242 (1994-04-01), Taylor
Sheiham Ivan
Taylor David J.
Templey Margaret P.
Hess B. Hamilton
The Wiggins Teape Group Limited
LandOfFree
Pressure-sensitive copying material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure-sensitive copying material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure-sensitive copying material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-992088