Deinking a print
View Patent ↗A method of deinking an image-bearing member using an organic solvent includes receiving the image-bearing member. The member has thereon a continuous or discontinuous image layer formed of toner particles that do not include colorant, and colorant particles or molecules. The colorant particles or molecules are arranged in a pattern corresponding to the arrangement of the toner particles. The organic solvent is hydrophobic or oliophilic and the colorant is insoluble in the organic solvent. The hydrophobic or oliophilic organic solvent is applied to the image-bearing member, so that a majority of the toner image layer is dissolved off the image-bearing member and the colorant is removed from the image-bearing member. A deinked reflection density of the image-bearing member in a selected test area from which the toner image layer was dissolved is within 0.15 of an unprinted reflection density of the image-bearing member before deinking.
1. A method of deinking a paper using an organic solvent, comprising:
receiving the paper having thereon a continuous or discontinuous image layer formed of toner particles that do not include colorant and of pigment particles or dye molecules, the pigment particles or dye molecules arranged in a pattern corresponding to the arrangement of the toner particles, wherein the pigment particles or dye molecules are insoluble by the organic solvent; and
applying the organic solvent to the paper, so that a majority of the toner particles are removed from the paper and at least some of the pigment particles or dye molecules that are attached to the toner particles are removed from the paper; and
wherein a deinked reflection density of the paper in a selected test area from which the toner particles was dissolved is within 0.15 of an unprinted reflection density of the paper before deinking.
2. The method according to claim 1 , further comprising, before the paper is received:
transferring toner of a toner image onto the paper, wherein the toner is soluble in the organic solvent;
printing ink of an ink image corresponding to the toner image onto the toner image on the paper to form the continuous or discontinuous image layer, the ink including the pigment particles or dye molecules in a carrier fluid, so that the pigment particles or dye molecules are disposed over the toner image; and
fixing the toner image and ink image to the paper.
3. The method according to claim 1 wherein the paper is an uncoated paper.
4. The method according to claim 1 wherein the toner particles are stained by the pigment particles or dye molecules.