Image forming method and image forming apparatus

An image forming method comprising the steps of:

• forming visible images by application of an ink, which at least includes an ink solvent and a color material, onto a recording medium comprising a porous layer having a liquid permeating property, the ink being applied on a surface of the medium from a side of the porous layer;
• conveying the recording medium in a conveying direction from a location for forming images to a location for a subsequent process;
• and
• heating the recording medium while pressing the recording medium at a nip region to eliminate the liquid permeating property of the porous layer,
• wherein the recording medium further comprises an ink reception layer and the porous layer includes thermoplastic resin particles and is formed on the ink reception layer, and
• wherein, in the nip region that the surface of the recording medium formed with the visible images is pressed, a point A at which the ink solvent contained in the recording medium reaches the boiling point is located upstream, relative to the conveying direction, of a point B at which the liquid permeating property of the porous layer is eliminated.

An image forming method comprising the steps of:

• forming visible images by application of an ink, which at least includes an ink solvent and a color material, onto a recording medium comprising a porous layer having a liquid permeating property, the ink being applied on a surface of the medium from a side of the porous layer;
• conveying the recording medium overlapped with a material to be printed on the recording medium in a conveying direction from a location for forming images to a location for a subsequent process;
• and
• heating the recording medium and the material to be printed while pressing the recording medium at a nip region to eliminate the liquid permeating property of the porous layer,
• wherein the recording medium at least includes a base material, a separation layer formed on the base material, and a transfer layer made of the porous layer including thermoplastic resin particles formed on the separation layer, and
• wherein, in the nip region that the surface of the recording medium formed with the visible images is pressed, a point A at which the ink solvent contained in the recording medium reaches the boiling point is located upstream, relative to the conveying direction, of a point B at which the liquid permeating property of the porous layer is eliminated.

An image forming apparatus comprising:

• forming means for forming visible images by application of an ink, which at least includes an ink solvent and a color material, onto a recording medium comprising a porous layer having a liquid permeating property, the ink being applied on a surface of the medium from a side of the porous layer;
• conveying means for conveying the recording medium in a conveying direction from a location for forming images to a location for a subsequent process;
• and
• a heating member to heat the recording medium while pressing the recording medium at a nip region to eliminate the liquid permeating property of the porous layer,
• wherein, in the nip region that the surface of the recording medium formed with the visible images is pressed, a point A at which the ink solvent contained in the recording medium reaches the boiling point is located upstream, relative to the conveying direction, of a point B at which the liquid permeating property of the porous layer is eliminated.

An image forming method comprising the steps of:

• forming visible images by application of an ink, which at least includes an ink solvent and a color material, onto a recording medium comprising a porous layer having a liquid permeating property, the ink being applied on a surface of the medium from a side of the porous layer;
• conveying the recording medium at conveyance speeds from a location for forming images to a location for a subsequent process;
• and
• heating the recording medium while pressing the recording medium at a nip region to eliminate the liquid permeating property of the porous layer,
• wherein the recording medium further comprises an ink reception layer and the porous layer includes thermoplastic resin particles and is formed on the ink reception layer,
• wherein, in the nip region that the surface of the recording medium formed with the visible images is pressed, a point A at which the ink solvent contained in the recording medium reaches the boiling point is located upstream, relative to the conveying direction, of a point B at which the liquid permeating property of the porous layer is eliminated, and
• wherein the conveyance speed at a time that the recording medium is heated and pressed is slower than the conveyance speed at a time that the visible images are formed on the recording medium.

An image forming method comprising the steps of:

• forming visible images by application of an ink, which at least includes an ink solvent and a color material, onto a recording medium comprising a porous layer having a liquid permeating property, the ink being applied on a surface of the medium from a side of the porous layer;
• conveying the recording medium overlapped with a material to be printed on the recording medium at conveyance speeds from a location for forming images to a location for a subsequent process;
• and
• heating the recording medium and the material to be printed while pressing the recording medium at a nip region to eliminate the liquid permeating property of the porous layer,
• wherein the recording medium at least includes a base material, a separation layer formed on the base material, and a transfer layer made of the porous layer including thermoplastic resin particles formed on the separation layer,
• wherein, in the nip region that the surface of the recording medium formed with the visible images is pressed, a point A at which the ink solvent contained in the recording medium reaches the boiling point is located upstream, relative to the conveying direction, of a point B at which the liquid permeating property of the porous layer is eliminated, and
• wherein the conveyance speed at a time that the recording medium is heated and pressed is slower than the conveyance speed at a time that the visible images are formed on the recording medium.