Recording material containing .gamma.-alumina

Details Recording material containing .gamma.-alumina Recording material containing .gamma.-alumina

B - Operations, Transporting

32

B

42/15

B32B 5/16 (2006.01) B41M 5/155 (2006.01)

Patent

CA 1082458

ABSTRACT OF THE DISCLOSURE A mixture of ?-alumina and its precursors containing 1 to 30% water volatile at 1000°C converts normally colorless dye materials such as crystal violet lactone, malachite green lactone, benzoyl leuco mathylene blue and N-phenylleukauramine to the corresponding colored dyes upon contact, and improves the results achieved with recording material consisting es- sentially of a fibrous web and a pigment composition secured to the fibers of the web if the mixture amounts to at least 10% of the weight of the pigment composition. Particularly strong and stable colors are produced if the fibrous web is coated with a pigment composition prepared from an aqueous dispersion of the mixture and other pigments on which a basic compound is deposited from a water-soluble zinc salt by means of hydroxyl ions.

270012

Affiliated with

Also associated with

Rating

Recording material containing .gamma.-alumina does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording material containing .gamma.-alumina, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording material containing .gamma.-alumina will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-530131