Patent ID: 6908189
Filing Date: 2005-06-21
Classification: B41J,B41M,B65H

Abstract:
1. An ink jet recording method comprising the steps of: forming an image on a recording medium comprising a support having thereon an ink absorptive layer comprising an inorganic pigment and a water soluble binder by jetting an ink onto the recording medium; and correcting a curl of the recording medium by applying heat and pressure to the recording medium, wherein the recording medium shows a curl value of between −10 and 10 mm after applying a heat and pressure treatment in the following condition to the recording medium having a curl value between −30 of −40 mm, wherein the condition of the heat and pressure treatment is: employing an apparatus comprising a φ30 mm circular iron cylinder having a heater in its interior as an upper roller and a φ30 mm silicone rubber roller as a lower roller, both of which are covered with a tetrafluoroethylene-perfluoroalkyl ether copolymer having a thickness of 100 μm; feeding the recording medium in so that the upper roller comes into contact with the surface of the ink absorptive layer; and subjecting the recording medium to the heat and pressure treatment under conditions of a nip width of 0.3 mm, a linear pressure of 32 kgf/297 mm, transporting rate of 10 mm/second and the surface temperature of the upper roller of 120° C.