Alcohol-ammonia dye solution and dyeing therewith |
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| 申请号 | US27777172 | 申请日 | 1972-08-03 | 公开(公告)号 | US3802835A | 公开(公告)日 | 1974-04-09 |
| 申请人 | NORTH AMERICAN MILLS; | 发明人 | PRIETO H; | ||||
| 摘要 | A dye system in which materials are bathed in a dyebath formed of a dye dissolved in a substantially anhydrous liquid ammonia. A mono-hydroxy lower alkyl alcohol is added as a leveling agent and to improve hand. | ||||||
| 权利要求 | 2. A dyebath as defined in claim 1 wherein said alcohol is selected from the group consisting of methanol, ethanol, n-propanol and isopropanol. 3. A dyebath as defined in claim 1 wherein said dyestuff is selected from the group consisting of direct, disperse, naphthol, reactive and sulfur dyes. 4. A dyebath as defined in claim 1 wherein said alcohol is isopropanol. 5. A dyebath as defined in claim 1 wherein said alcohol is n-propanol. 6. A dyebath as defined in claim 1 wherein said alcohol is ethanol. 7. A dyestuff as defined in claim 1 wherein said alcohol is methanol. 8. In a method of dyeing organic materials by applying to said materials a dyebath of liquid ammonia having a dyestuff dissolved therein, the improvement comprising adding a mono-hydroxy lower alkyl alcohol to said dyebath. 9. In a method as defined in claim 8 wherein said mono-hydroxy lower alkyl alcohol is selected from the group consisting of methanol, ethanol, n-propanol and isopropanol. 10. In a method as defined in claim 8 wherein said mono-hydroxy lower alkyl alcohol is isopropanol. 11. A method of dyeing organic materials from a dyebath comprising the steps of dissolving a dyestuff in a solvent of liquid ammonia to form said dyebath and adding thereto a mono-hydroxy lower alkyl alcohol. 12. Method as defined in claim 11 wherein said mono-hydroxy lower alkyl alcohol is admixed with said ammonia prior to dissolving said dyestuff in said ammonia. 13. Method as defined in claim 11 wherein said dyestuff is selected from the group consisting of direct, disperse, naphthol, reactive and sulfur dyes. 14. Method as defined in claim 11 wherein said dyestuff is direct dye. 15. Method as defined in claim 11 wherein said dyestuff is a disperse dye. 16. Method as defined in claim 11 wherein said dyestuff is a naphthol dye. 17. Method as defined in claim 11 wherein said dyestuff is a reactive dye. 18. Method as defined in claim 11 wherein said dyestuff is a sulfur dye. |
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