Micro denier fiber fill insulation

• US 6,613,431 B1
• Filed: 02/22/2002
• Issued: 09/02/2003
• Est. Priority Date: 02/22/2002
• Status: Expired due to Term

• Current Assignee: PrimaLoft, Inc.
• Original Assignee: Albany International Corporation
• Inventors: Rumiesz, Joseph, Laskorski, Victor P.
• Primary Examiner(s): Edwards, N.
• Application Number:
  US10/081,786
• Publication Number:
  US 20030162020A1
• Time in Patent Office: 557 Days
• Field of Search: 428/357, 428/402, 428/362, 428/371
• US Class Current: 428/357
• CPC Class Codes: B68G 1/00 Loose filling materials for upholstery
• CPC Class Codes: D04H 1/02 Cotton wool; Wadding
• CPC Class Codes: D04H 1/435 Polyesters
• CPC Class Codes: D04H 1/43835 Mixed fibres, e.g. at least two chemically different fibres or fibre blends
• CPC Class Codes: D04H 1/43838 Ultrafine fibres, e.g. microfibres
• CPC Class Codes: Y10T 428/29 Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
• CPC Class Codes: Y10T 428/2929 Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
• CPC Class Codes: Y10T 428/2933 Coated or with bond, impregnation or core

Abstract

An insulation or filling material composed of fiber balls which are made up of a random entanglement of micro denier polyester fibers.

Claims

1. An insulation or filling material comprising a substantially round random entanglement of fibers which forms a fiber ball comprising micro denier fibers which are uncrimped and not bonded together.

2. The invention in accordance with claim 1 wherein all of the fibers which make up the fiber ball are micro denier fibers.

3. The invention in accordance with claim 2 wherein said micro denier fibers are made of polyester.

4. The invention in accordance with claim 1 wherein said micro denier fibers are made of polyester.

5. The invention in accordance with claim 1 wherein said insulation or filling material includes said fiber balls in an admixture with natural fibers or synthetic fibers.

6. The invention in accordance with claim 3 wherein said insulation or filling material includes said fiber balls in an admixture with natural fibers or synthetic fibers.

7. The invention in accordance with claim 4 wherein said insulation or filling material includes said fiber balls in an admixture with natural fibers or synthetic fibers.

8. The invention in accordance with claim 1 wherein said fibers are siliconized.