Claims
- 1. A mixture of copolyester fibers of generally scalloped-oval cross-section with grooves that run along the length of the fibers, said copolyester being cationic-dyeable by reason of the presence of about 1 to about 2.5 mole % of an alkali metal salt of a 5-sulfonic isophthalic acid, and being chain-branched with about 0.05 to about 0.8 mole % of chain-brancher, and said mixture being a mixture of fibers having a higher denier per filament and of fibers having a lower denier per filament, wherein said higher denier per filament is at least 1.2 times said lower denier per filament.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of my application Ser. No. 08/662,804 (DP-6400), filed Jun. 12, 1996, and now U.S. Pat. No. 5,736,243, being itself a continuation-in-part of my earlier applications Ser. No. 08/497,495 (DP-6255), filed Jun. 30, 1995, and now U.S. Pat. No. 5,591,523 and Ser. No. 08/642,650 (DP-6365-A), filed May 3, 1996, and now U.S. Pat. No. 5,626,961, itself a continuation-in-part of my earlier application Ser. No. 08/497,499, filed Jun. 30, 1995, now abandoned, and also derives priority from PCT/US98/06153, filed Mar. 31, 1998 (DP-6635) and from PCT/US98/06154, filed Mar. 31, 1998 (DP-6295).
US Referenced Citations (23)
Foreign Referenced Citations (5)
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Date |
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294912 |
Dec 1988 |
EPX |
WO 9213120 |
Aug 1992 |
WOX |
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Jan 1997 |
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WO 9702373 |
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Non-Patent Literature Citations (2)
Entry |
Marshall and Thompson, Drawing Synthetic Fibers, Nature, 171, 38 and 39, Jan. 3, 1953. |
Marshall and Thompson, The Drawing of Terylene, J. Applied Chem., 4, 145 through 153, Apr. 1954. |
Related Publications (1)
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642650 |
May 1996 |
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Continuation in Parts (3)
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662804 |
Jun 1996 |
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497495 |
Jun 1995 |
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497499 |
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