Archival aperture card

Details Archival aperture card Archival aperture card

D - Textiles, Paper

21

H

D21H 11/02 (2006.01) D21H 11/14 (2006.01) G03B 21/64 (2006.01) D21H 17/74 (1990.01)

Patent

CA 2139315

2139315 9403676 PCTABS00030 Archival quality aperture cards manufactured from stock formulation including: 1) between 40 and 60 % southern softwood kraft pulp; 2) between 60 and 40 % northern mixed hardwood pulp; 3) between 1.5 and 2.5 % on total pulp, calcium carbonate for alkaline reserve; 4) between 0.05 and 1.0 % on total pulp, alkyl ketene dimer as an internal sizing agent; 5) between 0.2 and 1.0 % on total pulp, cationic potato starch for internal bonding improvements; 6) between 0.5 and 2.0 % on total pulp, cationic potato starch as a surface sizing agent; 7) between 0.5 and 2.5 % solids added to the surface sizing agent, alkyl ketene dimer as a slip agent; and 8) between 0.01 and 0.3 % dyed rayon granitizing fibers.

Affiliated with

Also associated with

Rating

Archival aperture card does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1377367