| US 7,550,017 B2 | ||
| Dyed microfiber textiles | ||
| Kaushal Gandhi, Spartanburg, S.C. (US); and Benjamin H. Glover, Easley, S.C. (US) | ||
| Assigned to Milliken & Company, Spartanburg, S.C. (US) | ||
| Filed on Nov. 08, 2007, as Appl. No. 11/983,275. | ||
| Application 11/983275 is a division of application No. 11/012048, filed on Dec. 14, 2004, granted, now 7,371,700. | ||
| Application 11/012048 is a division of application No. 10/103235, filed on Mar. 21, 2002, granted, now 6,844,276. | ||
| Claims priority of provisional application 60/277840, filed on Mar. 22, 2001. | ||
| Prior Publication US 2008/0060143 A1, Mar. 13, 2008 | ||
| Int. Cl. D06P 1/00 (2006.01) | ||
| U.S. Cl. 8—453 [8/461; 8/465] | 4 Claims |
| 1. A method for making a nonwoven textile substrate comprising the steps of:
(a) providing a nonwoven textile substrate comprising microfibers;
(b) dyeing the nonwoven textile substrate with a non-azo disperse dye;
(c) scouring the dyed nonwoven textile substrate by a process comprising the steps of:
(i) immersing the dyed nonwoven textile substrate in an aqueous bath comprising at least one alkali material,
(ii) increasing the temperature of the aqueous bath to a first temperature,
(iii) adding a reductive scouring material to the aqueous bath at the first temperature,
(iv) scouring the dyed nonwoven textile substrate in the aqueous bath at the first temperature,
(v) decreasing the temperature of the aqueous bath to a second temperature, and
(vi) rinsing the dyed nonwoven textile substrate.
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