Ink jet transparency with improved ability to maintain edge acuity
AssigneeJames River Graphics, Inc.
InventorRobert C. Desjarlais
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Abstract
An ink jet transparency is provided which exhibits a unique ability to maintain the edge acuity of ink patterns or blocks on the transparency. The ink jet transparency comprises a substantially transparent resinous support, e.g., a polyester film, and a substantially clear coating thereon which includes a specific fluorosurfactant. The presence of the fluorosurfactant of the present invention in the clear coating prevents trailing of the ink-jet ink. As a result, patterns and ink blocks do not trail into one another on the transparency, but maintain their defined shape and size.
Claims28
An ink jet reoording transparency exhibiting an improved ability to maintain the edge acuity of ink blocks on the transparency, comprising:
- (i) a substantially transparent resinous support, and
- (ii) a substantially clear coating thereon which includes a fluorosurfactant of the formula
- R.sub.f CH2CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ (R).sub.3 X.sup.-
- or
- (R.sub.f CH.sub.2 CH.sub.2 O).sub.1,2 P(O)(ONR.sub.4).sub.2,1
- wherein
- R.sub.f=F(CF.sub.2 CF.sub.2).sub.3-8 in each instance;
- R is hydrogen, alkyl, aralkyl, alkenyl, or alkoxy;
- and
- X is halogen, methosulfate (CH.sub.3 SO.sub.4.sup.-) or ethosulfate (CH.sub.3 CH.sub.2 SO.sub.4.sup.-).
An ink jet transparency exhibiting an improved ability to maintain the edge acuity of ink blocks on the transparency, comprising:
- (i) a substantially transparent polyester film support, and
- (ii) a substantially clear coating thereon which includes from about 1 weight percent to about 10 weight percent, based upon the weight of resin in the clear coating, of a fluorosurfactant of the formula
- R.sub.f CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ (CH.sub.3).sub.3 CH.sub.3 SO.sup.-.sub.4
- or
- (R.sub.f CH.sub.2 CH.sub.2 O).sub.1,2 P(O)(ONH.sub.4).sub.2,1
- wherein R.sub.f=F(CF.sub.2 CF.sub.2).sub.3-8 in each instance.
An ink jet recording transparency exhibiting an improved ability to maintain the edge acuity of ink blocks on the transparency, comprising:
- (i) a substantially transparent resinous support, and
- (ii) a substantially clear coating thereon which includes a fluorosurfactant of the formula
- R.sub.f CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ (R).sub.3 X.sup.-
- or
- (R.sub.f CH.sub.2 CH.sub.2 O).sub.1,2 P(O)(ONR.sub.4).sub.2,1
- wherein
- R.sub.f=F(CF.sub.2 CF.sub.2).sub.3-8 in each instance;
- R is hydrogen, alkyl, aralkyl, alkenyl, or alkoxy;
- and
- X is halogen, methosulfate (CH.sub.3 SO.sub.4.sup.-) or ethosulfate (CH.sub.3 CH.sub.2 SO.sub.4.sup.-),
- with the clear coating comprising a water soluble resin which is polyvinyl pyrrolidone, polyvinyl pyrrolidone/polyvinyl acetate copolymer, polyacrylamide, hydroxyethylcellulose, carboxymethylcellulose or a mixture thereof, and a water insoluble resin which is a styrenated acrylic, styrene/allyl alcohol copolymer, nitrocellulose polymer, carboxylated resin, polyester resin, polyketone resin, polyvinyl butyral resin or a mixture thereof.
An ink jet transparency exhibiting improved ink dry times, comprising:
- (i) a substantially transparent resinous support, and
- (ii) a substantially clear resin coating comprised of an emulsion of a water soluble polymer which is a basic hydrophilic polymer containing free amine groups and a water insoluble polymer which contains carboxyl groups.
Dependencies are inferred from the claim text.