A hot-melt ink includes an amide resin component and a wax component. The wax component includes at least montan ester wax and a ketone wax, and these waxes are contained in a total amount of at least 50 wt % based on the total amount of the hot-melt ink.
A hot-melt color ink-jet recording process comprises ejecting at least yellow, magenta and cyan to make a record. The yellow, magenta and cyan hot-melt inks comprises respectively a yellow colorant, a magenta colorant and a cyan colorant. Each hot-melt ink is prepared by mixing the corresponding colorant with a polyamide resin and a wax. In this recording process, at least one of the yellow and magenta hot-melt inks contains a 1-alkene/maleic anhydride copolymer.
A method for reducing rub-off from a substrate having a front side and a back side with at least one side bearing a toner or a printed image by depositing a substantially clear phase change composition on the image bearing side of the substrate as a plurality of dots, with the plurality of dots cumulatively covering an area of the image bearing side sufficient to reduce rub-off from the image bearing side. The dots may also be applied only to the images rather than both the image-bearing and non-image-bearing surfaces of the substrate and may be used on both the front side and the back side if both bear images.
This invention features a hot melt ink composition. The composition includes a vehicle; a pigment having a modifying group on a surface of the pigment; and a polymeric dispersant including a group which associates with the modified surface and a backbone which is miscible with the vehicle.
A method for reducing rub-off from a substrate, such as paper, having a front side and a back side with a toner image on at least one side of the substrate by depositing at least one phase change composition on at least one image bearing side of the substrate as a plurality of dots, with the plurality of dots cumulatively covering an area of the image bearing side sufficient to reduce rub-off from the image bearing side, the dots being characterized by being one of colored dots, a combination of colored dots or a combination of colored and clear dots. The dots may also be applied only to the images rather than both the image-bearing and non-image-bearing surfaces of the substrate.
A method for reducing rub-off from a substrate having a front side and a back side with at least one side bearing a toner image by depositing a substantially clear phase change composition onto a rotary brush in contact with the substrate using a ribbon or diffusion process printer with the phase change composition being transferred from the brush to the substrate in an amount sufficient to reduce rub-off from the side of the substrate bearing a toner image. The printer and a second rotary brush may be also used to deposit a clear phase change composition onto a non-image bearing backside of the substrate.
