http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0867485-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14c9ad767fb6d5e9dabfb770d4e82252 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-328 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41J2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-00 |
| filingDate | 1998-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9813bed9445e30b9af06e176d611e16f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_920673889d9ee39bb899a3d00e649ee2 |
| publicationDate | 1998-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0867485-A2 |
| titleOfInvention | Black-to-color bleed alleviation using non-specific ionic, pH and colloidal effects |
| abstract | An ink-jet ink set comprises (a) a microemulsion-based black ink in which thencolorant is a water-insoluble black pigment has been chemically modified to impartnwater solubility by addition of functional groups to form a macromolecular chromophorenand (b) at least one non-black (cyan, yellow, or magenta) ink that is a typicalnaqueous dye-based ink with an agent that increases the ionic strength of the no-blacknink and comprises either an inorganic salt or an organic acid; the organic acidnis used to adjust the pH of the non-black ink to a value of less than 5. The non-blacknink may alternatively comprise a water-insoluble non-black pigment that has alsonbeen chemically modified. The macromolecular chromophore-containing ink, or pigment-basednink, of the ink-jet ink set is a microemulsion that contains a substantiallynwater-insoluble organic oil, an organic co-solvent, and water and, optionally, an amphiphilenand a high molecular weight colloid. By employing an ink set in which somenof the members of the set have a higher ionic strength than the black, microemulsion-basednink, then bleed alleviation can be achieved. When the higher ionicnstrength ink comes in contact with the lower ionic strength microemulsion ink, thenrapid change in ionic strength of the microemulsion causes flocculation of the dissolvednmodified pigment. The result of the flocculation is that the colorant is precipitatednon the print medium. It is no longer capable of diffusion into the other ink,nthereby alleviating bleed, nor is it capable of penetration into the medium, therebynresulting in improved color density and edge acuity. The inks described herein alsonexhibit fast drying times, high waterfastness, and high smearfastness. They alsonshow reduced problems with inter-color bleed and show no halo effect. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2411229-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2411229-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7192472-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005028578-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6454403-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1088862-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2379410-A |
| priorityDate | 1997-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 135.