http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-535212-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_21dca66410c79c68763b7462c9a7ce03 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0079 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P5-001 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P5-00 |
| filingDate | 1939-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1941-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-535212-A |
| titleOfInvention | Improvements in compositions for use in printing textile yarns and fabrics |
| abstract | 535,212. Dyeing textiles. CALCO CHEMICAL CO., Inc. Aug. 8, 1939, No. 22868. Convention date, Aug. 11, 1938. [Classes 2 (iii) and 15 (ii)] Printing.-A solid composition capable of dispersion in an aqueous medium to produce a printing paste is obtained by admixture in wet form of a vat colour, an alkali, a reducing agent and a printing thickener and drying the mixture at a temperature below that at which the dehydration becomes irreversible. Specified thickeners are British gum, tragacanth and starch. A printing assistant and/or an agent capable of modifying the hygroscopicity may be incorporated in the composition prior to the drying. In examples, (1) an aqueous mixture containing chlorinated 2:2<SP>1</SP>- Bz-1:Bz-1<SP>1</SP>-dibenzanthrone, potassium and sodium carbonates, British gum and sodium formaldehyde sulphoxylate is dried in vacuo at 60-65‹C. and crushed to coarse flakes; the paste obtained by rehydration is printed on bleached, mercerized cotton fabric and the print is dried at 60-80‹C., oxidized, steamed for 5 minutes at 104‹C., soaped at the boil and ironed dry; (2), (3) and (4) the dyestuff in (1) is replaced by 1:2:21:11-anthraquinoneazine, 6:6<SP>1</SP>-dichloro-4:4<SP>1</SP>-dimethyl-2:2<SP>1</SP>-bis-thionaphthenindigo and 6:6<SP>1</SP>-diethoxy-2:2<SP>1</SP>-bis-thionaphthenindigo respectively ; (5) an aqueous mixture containing the dyestuffs of (3) and (4). above, potassium carbonate, British gum, tapioca flour, corn starch, sodium formaldehydesulphoxylate and glycerol is dried in vacuo at 60-65‹C., and ground to a fine powder which is rehydratable to a smooth printing paste ; (6) anthraquinone or (7) the 1-anthraquinonylmonoamide of maleic acid, is added as a printing assistant to the mixture to be dried in (5) ; (8) an aqueous mixture containing the dyestuff of (2) potassium and sodium carbonates, British gum, sodium formaldehydesulphoxylate and glycerol is dried azeotropically in vacuo using mineral spirits, the paste obtained by rehydration is printed on viscose rayon delustred with titanium dioxide and the print is aged for 10 minutes ; (9) the dyestuff mixture in (5) is, replaced by the dyestuff of (3) and printing is. effected as in (8) ; (10), (11), (12), (13) and (14), ferric chloride, aluminium sulphate, #:methylumbelliferon, the butyl ether of ethylene glycol and diethylene glycol, respectively, are added to the mixture to be dried in (9); (15) an aqueous mixture containing a sodium dinaphthylmethanedisulphonate dispersion of the dyestuff of (3), potassium carbonate, British gum, corn starch, tapioca. flour, sodium formaldehydesulphoxylate and glycerol is dried in vacuo at 60-65‹C. Specification 474,827 is referred to. The Specification as open to inspection under Sect. 91 comprises also the production of similar solid compositions containing in place of the vat dyestuff a mixture of a stabilized diazo component and a coupling component. This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1938-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.