| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S205-921
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N3-03 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25F3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41N3-034 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41N1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41N3-03 |
| filingDate |
1997-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5964d861b26a8a4d16c43918d4083ca7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79318b45e514ef37f34cc1b08dc226dc |
| publicationDate |
2000-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6024858-A |
| titleOfInvention |
Method of producing an aluminum support for a planographic plate |
| abstract |
An aluminum support for a planographic printing plate is produced by (1) etching a surface of an aluminum plate chemically in an acidic or alkaline aqueous solution, (2) roughening the surface of the aluminum plate electrochemically in an acidic aqueous solution by applying DC voltage to form honeycomb pits having an average diameter from 0.5 to 10 mu m and to leave plateau portions, (3) etching the surface of the aluminum plate to render the plateau portions less than 10% of the surface, (4) roughening the surface of the aluminum plate electrochemically in an acidic aqueous solution using direct current or alternating current to form honeycomb pits having an average diameter from 0.1 to 2 mu m, (5) etching the surface of the aluminum plate chemically, and (6) anodizing the surface of the aluminum plate in an acidic solution. A low current density starting zone, or soft starting zone, may be provided at a first roughening stage. At least one electrode in the soft starting zone is connected to a first electric power supply for electrolysis at 100 A/dm2 or less, which is lower than the current density used in any subsequent main roughening step. Main roughening is carried out using at least one additional electrode connected to a separate main electric power supply. An aluminum support for a planographic printing plate excellent in fill-in reduction of ink and scumming reduction is obtained. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007151948-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6929895-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1318216-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004169013-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7520966-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1318216-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004063033-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003105533-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7575694-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003148207-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1464513-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6324978-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007034527-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004055490-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0234544-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7622029-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007034528-A1 |
| priorityDate |
1994-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |