Digital printers
AssigneeHewlett-Packard Development Company, L.P.
InventorsManoj K Bhattacharyya, Hou T Ng, Laurie S Mittelstadt, Wenjia Zhang
Life of this patent
Estimating the term…
Abstract
A digital printing system includes components to apply an ink layer on a substrate, and a deinking applicator. The deinking applicator includes a reservoir and a roller. The reservoir is to contain a deinking solution. The roller is positioned to receive the deinking solution from the reservoir and to coat the substrate with the deinking solution prior to the application of the ink layer or subsequent to the application of the ink layer.
Claims20
A digital printing system comprising:
- components to apply an ink layer on a substrate;
- and
- a deinking applicator, including:
- a reservoir to contain a deinking solution;
- and
- a roller positioned to receive the deinking solution from the reservoir and to coat the substrate with the deinking solution prior to the application of the ink layer or subsequent to the application of the ink layer,
- wherein the roller is a sponge roller.
A digital printing system comprising:
- components to apply an ink later on a substrate;
- a reservoir containing a deinking solution;
- a deinking applicator positioned to receive the deinking solution from the reservoir, the deinking applicator to coat the substrate with the deinking solution prior to the application of the ink layer or subsequent to the application of the ink layer,
- wherein the deinking solution includes:
- a deinking agent incorporated into i) a non-polar carrier fluid or ii) a liquid, the deinking agent being chosen from:
- an unsaturated fatty acid having from 19 to 23 carbon atoms;
- combinations of unsaturated fatty acids having from 19 to 23 carbon atoms;
- polyoxyethylene (12) isooctylphenyl ether;
- polyoxyethylene (12) nonlyphenyl ether;
- polyoxyethylene (2) cetyl ether;
- polyoxyethylene (10) oleoyl ether;
- polyoxyethylene (20) oleyl ether;
- polyoxyethylene (100) stearyl ether;
- poly(ethylene glycol) dodecyl ether;
- poly(ethylene glycol) (150) distearate;
- poly(ethylene glycol) (12) tridecyl ether;
- poly(ethylene glycol) (18) tridecyl ether;
- methoxy poly(ethylene glycol) 350;
- polyethylene-block-poly(ethylene glycol) with a number average molecular weight ranging from 500 to 2500;
- a monostearate having a formula CH3(CH2)16COO(CH2CH2O)nH, wherein n=1−16;
- a monopalmitate having a formula CH3(CH2)14COO(CH2CH2O)nH, wherein n=2−17;
- a distearate having a formula CH3(CH2)16COO(CH2CH2O)nOC(CH2)16CH3, wherein n=5−13;
- a dipalmitate having a formula CH3(CH2)14COO(CH2CH2O)nOC(CH2)14CH3, wherein n=2−13;
- a mixed diester having a formula CH3(CH2)14COO(CH2CH2O)nOC(CH2)16CH3, wherein n=2−14;
- and
- combinations thereof.
A method for generating a deinkable print, the method comprising:
- applying an ink composition to a substrate;
- and
- in-line with the applying of the ink composition, selectively engaging a deinking applicator to apply a deinking solution on the substrate prior to applying the ink composition or subsequent to applying the ink composition.
Dependencies are inferred from the claim text.