I claim:
1. A method of lithographically printing images on a receiving medium, comprising in order:
(a) providing a lithographic plate comprising (i) a substrate; and (ii) a thermosensitive layer comprising a free radical polymerizable ethylenically unsaturated monomer (including oligomer) having at least one terminal ethylenic group, an infrared absorbing dye, and a free-radical initiator selected from the group consisting of onium salt and borate salt; wherein said thermosensitive layer is capable of hardening upon exposure to an infrared laser radiation, is soluble or dispersible in ink (for waterless plate) or in ink andor fountain solution (for wet plate), and exhibits an affinity or aversion substantially opposite to the affinity or aversion of said substrate to at least one printing liquid selected from the group consisting of ink and an abhesive fluid for ink;
(b) imagewise exposing the plate with the infrared laser radiation to cause hardening of the thermosensitive layer in the exposed areas; and
(c) contacting said exposed plate with ink andor fountain solution on a lithographic press to remove the thermosensitive layer in the non-hardened areas, and to lithographically print images from said plate to the receiving medium.
2. The method of claim 1 wherein said free-radical initiator is an onium salt selected from the group consisting of diazonium salt, iodonium salt, sulfonium salt, phosphonium salt, and pyridinium salt.
3. The method of claim 1 wherein said free-radical initiator is a diaryliodonium salt.
4. The method of claim 1 wherein said free-radical initiator is a triarylsulfonium salt.
5. The method of claim 1 wherein said free-radical initiator is a triarylalkylborate salt or tetraarylborate salt.
6. The method of claim 1 wherein said infrared absorbing dye is a cyanine dye or phthalocyanine dye.
7. The method of claim 1 wherein said thermosensitive layer further comprises a polymeric binder.
8. The method of claim 1 wherein said plate further includes a releasable interlayer interposed between the substrate and the thermosensitive layer, said releasable interlayer being soluble or dispersible in ink (for waterless plate) or in ink andor fountain solution (for wet plate); wherein the substrate comprises rough andor porous surface capable of mechanical interlocking with a coating deposited thereon, and the interlayer is substantially conformally coated on the microscopic surfaces of the substrate and is thin enough in thickness, to allow bonding between the thermosensitive layer and the substrate through mechanical interlocking.
9. The method of claim 1 wherein said substrate has a roughened surface comprising peaks and valleys, and said thermosensitive layer is substantially conformally coated on the roughened substrate surface so that the surface of said thermosensitive layer has peaks and valleys substantially corresponding to the major peaks and valleys of the substrate microscopic surface; and said substrate has an average surface roughness Ra of about 0.2 to about 2.0 microns, said thermosensitive layer has an average coverage of about 0.1 to about 2.0 gm2, and the average height of the valleys on the thermosensitive layer surface is at least 0.1 microns below the average height of the peaks of the substrate surface.
10. The method of claim 1 wherein said substrate is oleophilic and said thermosensitive layer is oleophobic, and said plate is a waterless plate.
11. The method of claim 1 wherein said substrate is hydrophilic and said thermosensitive layer is oleophilic, and said plate is a wet plate.
12. The method of claim 11 wherein said thermosensitive layer further comprises a nonionic surfactant at 0.3 to 20% by weight of the thermosensitive layer.
13. The method of claim 1 wherein said substrate is hydrophilic; and said thermosensitive layer is oleophilic and comprises a polymeric binder, an acrylate or methacrylate monomer, an infrared absorbing dye, and a free-radical initiator selected from the group consisting of diaryliodonium salt, triarylsulfonium salt, triarylalkylborate salt, and tetraarylborate salt.
14. The method of claim 1 wherein said plate further includes a top ink andor fountain solution soluble or dispersible top layer on the thermosensitive layer.
15. The method of claim 1 wherein said plate is a wet plate and further includes a top water soluble polymer layer on the thermosensitive layer.
16. The method of claim 1 wherein said plate is exposed on an imaging device off the press and then mounted onto a plate cylinder of a lithographic press for on-press development with ink andor fountain solution, and lithographic printing.
17. The method of claim 1 wherein said plate is mounted on a plate cylinder of a lithographic press for the imagewise infrared laser exposure, on-press development with ink andor fountain solution, and lithographic printing.
18. A method of lithographically printing images on a receiving medium, comprising in order:
(a) providing on a lithographic press a lithographic printing member comprising (i) a substrate; and (ii) a thermosensitive layer comprising a free radical polymerizable ethylenically unsaturated monomer (including oligomer) having at least one terminal ethylenic group, an infrared absorbing dye, and a free-radical initiator selected from the group consisting of onium salt and borate salt; wherein said substrate is a sheet material mounted on a plate cylinder or is the surface of a plate cylinder of the lithographic press; and said thermosensitive layer is capable of hardening upon exposure to an infrared laser radiation, is soluble or dispersible in ink (for waterless plate) or in ink andor fountain solution (for wet plate), and exhibits an affinity or aversion substantially opposite to the affinity or aversion of said substrate to at least one printing liquid selected from the group consisting of ink and an abhesive fluid for ink;
(b) imagewise exposing the plate with the infrared laser radiation to cause hardening of the thermosensitive layer in the exposed areas; and
(c) operating said press to contact said exposed plate with ink andor fountain solution to remove the thermosensitive layer in the non-hardened or solubilized areas, and to lithographically print images from said plate to the receiving medium.
19. The method of claim 18 wherein said printing member is prepared by coating the thermosensitive layer onto the substrate on the lithographic press, said substrate being the surface of a plate cylinder of the lithographic press.
20. The method of claim 18 wherein said printing member is prepared by coating the thermosensitive layer onto the substrate on the lithographic press, said substrate being a sheet material mounted on a plate cylinder.
21. The method of claim 18 wherein said printing member is a lithographic plate that is coated before being mounted onto the plate cylinder of the lithographic press.
22. The method of claim 18 wherein said substrate is hydrophilic; and said thermosensitive layer is oleophilic and comprises a polymeric binder, an acrylate or methacrylate monomer, an infrared absorbing dye, and a free-radical initiator selected from the group consisting of diaryliodonium salt, triarylsulfonium salt, triarylakylborate salt, and tetraarylborate salt.
23. A lithographic printing plate comprising (i) a substrate; and (ii) a thermosensitive layer comprising an alkaline insoluble polymeric binder, a free radical polymerizable ethylenically unsaturated monomer (including oligomer) having at least one terminal ethylenic group, an infrared absorbing dye, and a free-radical initiator selected from the group consisting of onium salt and borate salt; wherein said thermosensitive layer is capable of hardening upon exposure to an infrared laser radiation, is soluble or dispersible in ink (for waterless plate) or in ink andor fountain solution (for wet plate), and exhibits an affinity or aversion substantially opposite to the affinity or aversion of said substrate to at least one printing liquid selected from the group consisting of ink and an abhesive fluid for ink.
24. The lithographic plate of claim 23 wherein said free-radical initiator is an onium salt selected from the group consisting of diazonium salt, iodonium salt, sulfonium salt, phosphonium salt, and pyridinium salt.
25. The lithographic plate of claim 23 wherein said free-radical initiator is a diaryliodonium salt.
26. The lithographic plate of claim 23 wherein said free-radical initiator is a triarylsulfonium salt.
27. The lithographic plate of claim 23 wherein said free-radical initiator is a triarylalkylborate salt or tetraarylborate salt.
28. The lithographic plate of claim 23 wherein said substrate is hydrophilic and said thermosensitive layer is oleophilic, and said plate is a wet plate.
29. The lithographic plate of claim 28 wherein said thermosensitive layer further comprises a nonionic surfactant at from 0.3 to 20% by weight of the thermosensitive layer.
30. The lithographic plate of claim 28 wherein said plate further includes a top water soluble or dispersible polymer layer on the thermosensitive layer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A method for using a dynamically displayed bar code and a bar code reader to obtain one of a good and service, comprising the steps of:
inputting a description of said one of the good and service into a wireless device;
dynamically outputting a bar code corresponding to the description on the display screen of the wireless device;
positioning the display screen of the wireless device at a first bar code reader;
scanning the bar code at the first bar code reader; and
delivering one of the good and service in response to the scanning step.
2. The method of claim 1, wherein said wireless device includes location-identifying means whereby one of said good and service can be delivered to the location of the wireless device.
3. The method of claim 1, wherein one of said good and service is delivered at a location corresponding to the location of said first bar code reader.
4. The method of claim 1, wherein the inputting step includes one of the steps of:
choosing the description from a plurality of pre-stored descriptions; and
manually entering the description corresponding to one of a plurality of pre-stored descriptions using alphanumeric data input means of the wireless device.
5. The method of claim 4, wherein the plurality of pre-stored descriptions are stored in one of the wireless device and a remote database accessible by the wireless device.
6. The method of claim 4, wherein each of said plurality of descriptions is correlated to a unique bar code.
7. The method of claim 6, including the additional step of dynamically updating one of said wireless device and said remote database to add a bar code, said updating step utilizing one of said wireless device and a second bar code reader as an input device, wherein said second bar code reader is used to scan said bar code printed on a product.
8. The method of claim 7, wherein the bar code of claim 6 is associated with said user.
9. The method of claim 7, wherein the second bar code reader is connectable to one of said wireless device and the remote database by way of an Internet connection.
10. The method of claim 7, wherein the second bar code reader is located in a user’s house.
11. The method of claim 7, wherein the second bar code reader is located proximate to a refrigerator.
12. The method of claim 1, including the additional steps of:
determining the location of said wireless device;
correlating said location with the location of a particular commercial outlet;
querying a database of goods and services available at said particular commercial outlet for a match to the description input at the wireless device; and
in the absence of a match, displaying a message on said wireless device indicating that one of said good and service is not available at said particular commercial outlet.
13. The method of claim 12, wherein said location is one of the location of said wireless device, and the location of said first bar code reader.
14. The method of claim 12, including the additional steps of:
querying a database to determine the identification of one or more other commercial outlets where the one of said good or service corresponding to said description can be found;
determining the location of said one or more other commercial outlets; and
providing the name and location of said one or more different commercial outlets where one of said good and service can be found to said user.
15. A system for obtaining a good or service in response to a user’s request, comprising:
a user input permitting input of a description of one of said good and service into a wireless device;
a receiver configurable to provide a bar code to the wireless device corresponding to the description;
a display on the wireless device having a resolution sufficient to display the bar code at the wireless device;
a scanner;
means permitting the location of said user to be determined;
a database containing a plurality of descriptions and data concerning which one of said good and service is available at said location; and
means for securing the delivery of the good or service to said user.
16. A method for a user of a wireless device to obtain a physical good or service at an identifiable location, comprising the steps of:
scanning a bar code relating to one of a physical good and service using bar code reading means of a wireless device;
sending data corresponding to said scanned bar code to a remote computer;
processing said data as a request to purchase one of said physical good and service;
determining the location of one of said physical good and service;
determining the location of the user and the proximity of one of the physical good and service to the location of the user, wherein the location of the user is determined based on one of the location of the wireless device and the location of a wireless device locating means; and
delivering one of said physical good and service to the user at the determined location of the user.
17. The method of claim 16, wherein said bar code is included as part of a description of said good and service.
18. The method of claim 17, wherein said description is included as part of an advertisement of said good and service.
19. Means for a user of a wireless device to obtain one of a good and service, comprising:
means for scanning a bar code relating to one of a good and service using a wireless device;
means for sending data corresponding to said scanned bar code to a remote computer;
means for determining the location of the user;
means for processing said data at said remote computer as a request to purchase one of said good and service; and
means for securing delivery of one of said good and service to the location of the user, wherein the location of the user is determined based on one of the location of the wireless device and the location of a wireless device locating means.