Back to results
US 12,152,342 B2Granted
Method for printing onto a nonwoven substrate
AssigneeSun Chemical Corporation
InventorsAlex Chudolij, Richard Bianchi, Arnold Gibaldi
Life of this patent
Estimating the term…
Abstract
The present invention provides ink and coating compositions for printing on non-woven substrates or fabrics. Advantageously, the compositions of the invention can be used either as one component (1K) or two component (2K) ink systems. The compositions of the invention exhibit improved properties, such as ink adhesion ratings, as shown by a rub test, compared to commercially available inks designed to be printed on non-woven substrates.
Claims9
A method of producing a printed non-woven substrate, comprising:
- (a) providing a non-woven substrate, wherein the non-woven substrate has been treated by corona discharge and wherein the substrate has a surface energy of 30 to 50 dynes/cm at 72° F. (22.22° C.) after the corona discharge treatment;
- (b) applying one or more layers of an ink or coating composition (A) to the substrate, wherein the ink or coating composition (A) comprises:
- i. one or more polyurethane resin dispersions, in an amount of 20 wt % to 80 wt %, based on the total weight of the composition, wherein the resin dispersions have a solids content of 40% to 90%, and wherein the polyurethane resin is a solvent-borne plasticizing aromatic polyether polyurethane;
- ii. one or more additional solvents, in an amount of 20 wt % to 80 wt %, based on the total weight of the composition;
- and
- wherein the ink or coating composition (A) contains no catalysts;
- and
- wherein the ink or coating composition (A) is a one-part system;
- and
- (c) drying the ink or coating composition (A) on the substrate;
- wherein the dried ink or coating composition (A) has an ink adhesion rating (IAR) of equal to or greater than 4.0.
8 more elements
Dependencies are inferred from the claim text.