What is claimed is:
1. An image forming method comprising jetting a pigment ink onto the ink jet recording medium comprising a support, and provided thereon, an ink receptive layer comprising thermoplastic resinous particles farthest from the support, by means of an ink jet method, applying heat and pressure simultaneously to the ink jet recording medium having the jetted ink.
2. The image forming method of claim 1 wherein the ink jet recording medium comprises a pigment ink solvent absorptive layer adjacent to said ink receptive layer.
3. The image forming method of claim 2 wherein the pigment ink comprises a dispersing agent and a solvent.
4. The image forming method of claim 1, wherein the heat and pressure are applied employing a heating roller.
5. The image forming method of claim 4, wherein the heat and pressure are applied employing heating roller comprising a metallic cylinder and a silicone rubber roller.
6. The image forming method of claim 5, wherein the metallic cylinder contains a heating source inside of the metallic cylinder.
7. The image forming method of claim 5, wherein a nip width, formed by pressure between said metallic cylinder and said silicone rubber roller, is from 1 to 20 mm.
8. The image forming method of claim 1, wherein the heating temperature of the ink jet recording medium is from 50 to 150 C.
9. The image forming method of claim 4, wherein the linear pressure resulted by said heating roller is from 500 to 3,000 Nm.
10. The image forming method of claim 1, wherein the thermoplastic resinous layer comprises a silicone emulsion in an amount of 0.5 to 10 percent by weight in terms of solid, or a water-soluble silicone compound in an amount of 0.5 to 10 percent by weight, with respect to the thermoplastic resinous particles.
11. The image forming method of claim 1 wherein the glass transition point, Tg, of said thermoplastic resinous layer is higher than the temperature at which said thermoplastic resinous particles are coated and dried during the production of said ink jet recording material, and is lower than the temperature at which said support is subjected to thermal modification due to said heating.
12. The image forming method of claim 2 wherein the void volume of the ink receiving layer and the pigment ink solvent-absorbing layer is from 20 to 40 mlm2.
13. The image forming method of claim 7 wherein the linear pressure resulted by said heating roller is from 500 to 3,000 Nm.
14. The image forming method of claim 13, wherein the heating temperature of the ink jet recording medium is from 50 to 150 C.
15. The image forming method of claim 4 wherein the glass transition point, Tg, of said thermoplastic resinous layer is higher than temperature at which said thermoplastic resinous particles are coated and dried during the production of said ink jet recording material, and is lower than the temperature at which said support is subjected to thermal modification due to said heating.
16. The image forming method of claim 15 wherein the void volume of the ink receiving layer and the pigment ink solvent-absorbing layer is from 20 to 40 mlm2.
17. The image forming method of claim 10 wherein the void volume of the ink receiving layer and the pigment ink solvent-absorbing layer is from 20 to 40 mlm2.
18. The image forming method of claim 17, wherein the heat and pressure is applied employing a heating roller and a silicon rubber roller, a nip width, formed by pressure between said metallic cylinder and said silicone rubber roller, is from 1 to 20 mm, the heating temperature of the ink jet recording medium is from 50 to 150 C., and the linear pressure resulted by said heating roller is from 500 to 3,000 Nm.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A loop antenna having an electromagnetic wave shield over at least one side of the loop antenna, the electromagnetic wave shield comprising:
a plurality of electric conductors;
a ground contact, grounding the plurality of electric conductors; and
a lead wire, connecting the plurality of electric conductors to the ground contact; wherein:
the plurality of electric conductors are electrically connected via the lead wire to the ground contact and arranged so that the paths of the respective electric conductors from any of their given points to the ground contact via the lead wire are determined uniformly, and
a sheet of magnetic material is disposed at one side of the loop antenna and the electromagnetic wave shield is disposed at the other side of the loop antenna.
2. The loop antenna as claimed in claim 1, wherein the plurality of electric conductors, the ground contact and the lead wire of the electromagnetic wave shield are provided on a support plate.
3. The loop antenna as claimed in claim 1, wherein the plurality of electric conductors of the electromagnetic wave shield are covered with insulating material.
4. The loop antenna as claimed in claim 1, wherein the plurality of electric conductors of the electromagnetic wave shield are comb-shaped, reticulated or latticed.
5. The loop antenna as claimed in claim 1, wherein the electromagnetic wave shield is envelop-shaped.
6. The loop antenna as claimed in claim 1, wherein the electromagnetic wave shield is multi-layered.
7. The loop antenna as claimed in claim 1, wherein the plurality of electric conductors of the electromagnetic wave shield are so disposed as to wrap up the loop antenna.
8. A loop antenna having an electromagnetic wave shield over at least one side of the loop antenna, the electromagnetic wave shield comprising:
a plurality of electric conductors;
a ground contact, grounding the plurality of electric conductors; and
a lead wire, connecting the plurality of electric conductors to the ground contact, wherein:
the plurality of electric conductors are electrically connected via the lead wire to the ground contact and arranged so that the paths of the respective electric conductors from any of their given points to the ground contact via the lead wire are determined uniformly,
a sheet of magnetic material is disposed at the back of the loop antenna facing the electromagnetic wave shield, and
a side wall in a standing condition on the loop antenna side is provided to the sheet of magnetic material.
9. The loop antenna as claimed in claim 8, wherein a metal plate is disposed at the back of the sheet of magnetic material.
10. The loop antenna as claimed in claim 9, wherein a side wall in a standing condition on the loop antenna side is provided to the metal plate.
11. The loop antenna as claimed in claim 10, wherein a plurality of through-holes are provided in the metal plate.
12. The loop antenna as claimed in claim 1, wherein the ground contact of the electromagnetic wave shield is connected to the ground of the loop antenna.
13. A contactless IC card readwrite apparatus comprising the loop antenna as claimed in claim 1 for supplying electric power and transmitting data to a contactless IC card by electromagnetic induction and receiving data from the contactless IC card through load changes, and a readwrite apparatus connected to the loop antenna.
14. A contactless IC card readwrite apparatus comprising a loop antenna, having an electromagnetic wave shield over at least one side of the loop antenna, for supplying electric power and transmitting data to a contactless IC card by electromagnetic induction and receiving data from the contactless IC card through load changes and a readwrite apparatus connected to the loop antenna, the electromagnetic wave shield comprising:
a plurality of electric conductors;
a ground contact, grounding the plurality of electric conductors; and
a lead wire, connecting the plurality of electric conductors to the ground contact; wherein:
the plurality of electric conductors are electrically connected via the lead wire to the ground contact and arranged so that the paths of the respective electric conductors from any of their given points to the ground contact via the lead wire are determined uniformly, and
the readwrite apparatus is disposed within the opening of the loop antenna and housed in a casing.
15. The contactless IC card readwrite apparatus as claimed in claim 13, wherein the readwrite apparatus and the loop antenna are disposed next to each other and housed in a casing.