Claims
- 1. Fiberfill filling material comprising resilient crimped hollow filling fibers that are of a synthetic polymer, wherein each of said hollow filling fibers has a single continuous void throughout its fiber length, and a void content of up to 30%, and wherein said fiberfill filling material is identified by all or a predetermined proportion of said fibers having a hollow cross-section that shows characteristic polymer material that protrudes into the single continuous void from an inside surface of the single continuous void, said hollow cross-section having a degree of irregularity (as defined herein) of less than 5%.
- 2. Fiberfill filling material according to claim 1, wherein said synthetic polymer is polyester.
- 3. Fiberfill filling material according to claim 1, wherein said synthetic polymer is polyester and said characteristic polymer material is also a polyester.
- 4. Fiberfill filling material according to claim 3, wherein the polyester of said characteristic polymer material is the same as that of said synthetic polymer.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of my application Ser. No. 08/204,054, filed Mar. 2, 1994, that is copending but is being abandoned, and that is itself a continuation-in-part of my application Ser. No. 08/017,546, filed Feb. 16, 1993, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
57-56512 |
Apr 1982 |
JPX |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
204054 |
Mar 1994 |
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Parent |
17546 |
Feb 1993 |
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