Claims
- 1. A method for the permanent flameproof finishing of cellulose fibers and articles containing cellulose fibers, comprising treating said cellulose fibers or said articles containing cellulose fibers under alkaline conditions, during which a swelling of the fibers occurs, and then treating the swollen fibers so produced with a cyanuric chloride derivative in an aqueous-alkaline phase, wherein a 4,6-dichloro-1,3,5-triazine-2-yl amine of formula I or II is used as said cyanuric chloride derivative:
- 2. The method according to claim 1, wherein said 4,6-dichloro-1,3,5-triazine-2-yl amine is selected from the group consisting of: 2-amino-4,6-dichlorotriazine; 2-aminoethylamino-2,4-dichlorotriazine; 2-(p-benzenesulfonamide-amino)-4,6-dichlorotriazine; a salt, especially a halogenide of 2-(p-trimethylammonium-benzene-amino)-4,6-dichlorotriazine; bis-N,N′-(4,6-dichloro-triazine-2-yl)-p-phenylene diamine; bis-N,N′-4,6-dichlorotriazine-2-yl)-(C2 to C4) alkene diamine; and bis—(4,6-dichlorotriazine-2-yl)-aminoethylphosphonate.
- 3. The method according to either claim 1 or 2, characterized in that the cellulose fiber is a cotton or viscose fiber and that it is in the form of a flock, yarn, textile fabric or fleece.
- 4. The method according to either claim 1 or claim 2, wherein the 4,6-dichlorotriazinyl amine compound is used in an amount corresponding to 20 to 80% by wt. relative to the cellulose.
- 5. The method according to either claim 1 or claim 2, characterized in that at least one 4,6-dichlorotriazinyl amine compound is used in an amount corresponding to a nitrogen content of at least 2% by wt., relative to the finished cellulose.
- 6. The method of claim 5, wherein said at least one 4,6-dichlorotriazinyl amine compound is used in an amount of 3 to 7% by wt. relative to the fmished cellulose.
- 7. The method of either claim 1 or claim 2, wherein before, during or after the flameproof finishing with a dichlorotriazinyl amine compound, said cellulose is additionally finished with a phosphorus-containing compound and wherein the phosphorus content during the additional finishing is at least 1% by wt. relative to said cellulose.
- 8. The method of claim 7, wherein said phosphorus-containing compound is selected from the group consisting of: dialkylphosphonocarboxylic acid amides and their N-methylol compounds; phosphonates; tetrahydroxymethylphosphonium salts; phosphates; hydrogen phosphates; and phosphorus-containing triazinyl amino compounds; and wherein said phosphorous-containing compound binds to the cellulose either alone or in the presence of urea or of a source of formaldehyde.
- 9. Cellulose fibers finished in a permanently flameproof manner and articles containing these cellulose fibers, characterized by amino-s-triazine compounds bound to glucose units of the cellulose via ether bridges and by the structure of formula III or IV:
- 10. The finished cellulose fibers of claim 9, wherein q is 1-3.
- 11. The finished cellulose fibers of claim 9, wherein said cellulose fibers are in an article selected from the group consisting of: yarn; a fleeces; and a sheet.
- 12. The finished cellulose fibers of claim 9, wherein said finished cellulose fibers have a nitrogen content of at least 1% by wt.
- 13. The finished cellulose fibers of claim 12, wherein said finished cellulose fibers have a nitrogen content of 2 to 7% by wt.
- 14. The finished cellulose fibers of any one of claims 9, 12 or 13, wherein said cellulose fibers additionally contain a bound phosphorus compound.
- 15. The finished cellulose fibers of claim 14, characterized in that said fibers have a nitrogen content in the range of 1 to 7% by wt. and a phosphorus content in the range of 1 to 7% by wt.
- 16. The finished cellulose fibers of any one of claims 9, 12, or 13, characterized in that they have an LOI value of at least 22.
- 17. The finished cellulose fibers of claim 16, wherein said LOI value is greater than 25.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 38 100.6 |
Aug 2000 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority under 35 U.S.C. §119 to German application 100 38 100.6, filed on Aug. 4, 2000, the text of which is hereby incorporated by reference.