http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1169745-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95f2d005c267fc92b6c55e8fe83d0878 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03D5-067 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03D5-06 |
| filingDate | 1966-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc33b74ec349ccf41873a6940d5dba19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed5aa8f5280ce3e5f166c6c683256b9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3bff8aafd48b5ad283cba3f0fc537c40 |
| publicationDate | 1969-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1169745-A |
| titleOfInvention | Improvements In or Relating To Development of Diazotype Materials |
| abstract | 1,169,745. Photographic diazotype processes and apparatus therefor. GAF (GREAT BRITAIN) Ltd. Feb.3, 1967 [Feb.15, 1966], No.6548/66. Headings G2A and G2C. A method of developing a latent image of a 1- or 2-component diazotype material comprises applying thereto a non-aqueous developer in the form of a solid block or layer or as a cream, paste, dough, viscous liquid or ink which contains a developing agent (including an alkali for 2-component materials and a coupler for 1- component materials) and a non-volatile, non-aqueous carrier being a liquid having a vapour pressure at 25‹ C. of less than 12 mm. of mercury or a solid with a melting or softening point above 25‹C. Specified carriers are waxes, polymers, silicates, talcum powder, titanium dioxide, ammonium citrate, urea, sugar, mannitol, trimethylol propane, sorbitol, cyclohexanol phthalate, glycerine, carbitol, diethylene glycol and hexane triol. Specified alkalies are the sodium salts of benzoic, formic, acetic and carbonic acid, dicyandiamidine sulphate, ammonium chloride, aminoguanidine acetate and monoethanolamine. Heat may be applied to accelerate development. As shown in Fig.1, a non-aqueous liquid developer of low or medium viscosity is run into reservoir 7 which is picked up by roller 1 with a rough surface, the excess being scraped off by the doctor blade 8 and the developer carried on to the exposed sheet 9 via rollers 2, 3, 4 and 5. Rollers 2 and 4 are slidably mounted and urged by springs 13 to maintain equal pressure on rollers 1, 3 and 5 and give an even spread of developer and roller 6 ensures contact of developer with the sheet 9. Rollers 1, 3 and 5 may be of stainless steel or ebonite and rollers 2, 4 and 6 of rubber. For solid developers or developers of high viscosity, the apparatus of Fig. 2 is used in which the developer is played in reservoir 21 and conveyed by screw 22 on to roller 20 and then roller 24 and exposed sheet 27; rubber 26 forming a rip to ensure developer transfer. Roller 25 provides periodic transverse movement to ensure a uniform coating of developer on roller 24. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3981730-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S49106830-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3976488-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S521663-B2 |
| priorityDate | 1966-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.