Claims
- 1. A process for imparting smooth-dry and flame retardant properties to synthetic-cellulose blend fabrics comprising:
- (a) padding a synthetic-cellulosic blend fabric, said fabric containing a minimum of 50% cellulose with a solution comprising sufficient amounts of N-methylol crosslinking agent, an acid catalyst, a halogen containing alcohol, and antimony oxide to produce smooth-dry, flame retardant properties in the blend fabric;
- (b) drying said cellulosic-blend fabric for sufficient time and at sufficient temperature to drive off the moisture; and then;
- (c) curing said blend fabric for sufficient time and temperature to impart smooth-dry, flame retardant properties to said blend fabric.
- 2. The process of claim 1 wherein the synthetic-cellulose blend fabric is a polyester-cotton blend fabric.
- 3. The process of claim 1 wherein the synthetic-cellulose blend is a glass fiber-cotton blend.
- 4. The process of claim 1 wherein the padding solution of step (a) includes an aqueous polyethylene emulsion or an aqueous silicone emulsion softener.
- 5. The process of claim 1 wherein the padding solution contains from about 5 to 20% nitrogen rich N-methylol crosslinking agent; 0.15 to 4% acid catalyst; 3 to 15% of antimony oxide, and 5 to 25% of a halogen containing alcohol.
- 6. The process of claim 1 wherein the halogen containing alcohol is glycol or polyol.
- 7. The process of claim 1 wherein the halogen containing alcohol is dibromoneopentyl glycol.
- 8. The process of claim 1 wherein the drying temperature is from about 140.degree. to 190.degree. F. and the curing temperature is from about 250.degree. to 400.degree. F.
- 9. A process for imparting smooth-dry flame retardant properties to synthetic-cellulosic blend fabric comprising:
- (a) padding a synthetic-cellulose blend fabric said fabric containing a minimum of 50% cellulose with a solution of 3% to 15% antimony oxide;
- (b) drying said blend fabric for sufficient time and temperature to drive off the moisture;
- (c) repadding said blend fabric with a solution comprising sufficient amounts of N-methylol crosslinking agent, an acid catalyst, a halogen containing alcohol to produce smooth-dry flame retardant properties in the blend fabric;
- (d) drying said fabric for sufficient time and temperature to drive off the moisture; and then,
- (e) curing said blend fabric for sufficient time and temperature to impart smooth-dry, flame retardant properties to said fabric.
- 10. The process of claim 9 wherein the padding solution in step (a) includes an aqueous polyethylene emulsion or an aqueous silicone emulsion softener.
- 11. The process of claim 9 wherein the synthetic component of said blend fabric is selected from the group consisting of: polyester and glass fiber amd the cellulose is cotton.
- 12. The process of claim 9 wherein the padding solution of step (a) contains from about 3 to 15% of antimony oxide.
- 13. The process of claim 9 wherein the repadding solution of step (c) contains from about 5 to 20% nitrogen rich N-methylol crosslinking agent; 0.15 to 4% of acid catalyst; 5 to 25% of a halogen containing alcohol.
- 14. The process of claim 9 wherein the halogen containing alcohol is glycol or polyol.
- 15. The process of claim 9 wherein the halogen containing alcohol is dibromoneopentyl glycol.
- 16. The process of claim 9 wherein the drying temperature is from 140.degree. to 190.degree. F. and the curing temperature is from about 250.degree. to 400.degree. F.
CROSS REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of application Ser. No. 586,617 filed Mar. 6, 1984, now U.S. Pat. No. 4,536,422, patented Aug. 20, 1985.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3771957 |
Vail |
Nov 1973 |
|
4011613 |
Bertoniere et al. |
Mar 1977 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
586617 |
Mar 1984 |
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