Carbonless copying paper

Textiles: manufacturing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428307, 428914, B41L 136

Patent

active

040035891

ABSTRACT:
Carbonless copying paper comprising paper coated with microcapsules containing a dye solution which is composed of a solvent, a dye which gives color under acidic conditions and a mineral oil, said dye solution including as solvent one or more of alkylnaphthalenes of the general formula ##STR1## WHEREIN R represents C.sub.1 -C.sub.4 alkyl group, n is an integer of 1-4, and R may be the same or different when n is 2-4, the total number of carbon atoms in R's being 4-6. Such carbonless copying papers exhibit excellent color development and are non-toxic and biodegradable, thus causing no environmental pollution when they are discarded.

REFERENCES:
patent: 2800457 (1957-07-01), Green et al.
patent: 3016308 (1962-01-01), Macaulay
patent: 3627581 (1971-12-01), Phillips, Jr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Carbonless copying paper 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 copying paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbonless copying paper will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-68207

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.