Method for tinting a hydrophilic contact lens

Details Method for tinting a hydrophilic contact lens Method for tinting a hydrophilic contact lens

1992-11-09

1993-11-30

Cintins, Marianne M.

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

Contact lens

D06P 352

Patent

active

052660770

ABSTRACT:
A method of tinting an unhydrated contact lens involves the steps of providing an unhydrated contact lens; providing a dyestuff solution; providing a printing block comprising a hydrophilic polymer material containing a dye complexing agent capable of noncovalently bonding the dyestuff; placing the dyestuff solution onto the printing block; contacting the unhydrated contact lens and the printing block for a time sufficient to allow the dyestuff solution to diffuse to the lens; and removing the lens from the printing block.

REFERENCES:
patent: Re27401 (1972-06-01), Wichterle
patent: 2976576 (1991-03-01), Wichterle
patent: 4559058 (1985-12-01), Bennett
patent: 4559059 (1985-12-01), Su
patent: 4668240 (1987-05-01), Loshaek
patent: 4705370 (1987-11-01), Johnson
patent: 4872405 (1989-10-01), Sterman
patent: 4963159 (1990-10-01), Narducy et al.
patent: 4963160 (1990-10-01), Hung
G. N. Sheth, Journal of Applied Polymer Science, vol. 30, pp. 4659-4668, 1985.

Affiliated with

Also associated with

Rating

Method for tinting a hydrophilic contact lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for tinting a hydrophilic contact lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for tinting a hydrophilic contact lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2092044