Woven thermal textile

• US 6,720,539 B2
• Filed: 04/25/2003
• Issued: 04/13/2004
• Est. Priority Date: 10/27/2000
• Status: Expired due to Fees

• Current Assignee: Milliken & Company
• Original Assignee: Milliken & Company
• Inventors: DeAngelis, Alfred R., Wolynes, Earle
• Primary Examiner(s): Look, Edward K.
• Assistant Examiner(s): Patel, Vinod D.
• Application Number:
  US10/423,212
• Publication Number:
  US 20030200612A1
• Time in Patent Office: 354 Days
• Field of Search: 219/545, 219/548, 219/549, 219/553, 219/504, 219/212, 219/211, 219/204, 428/373, 428/364
• US Class Current: 219/545
• CPC Class Codes: D02G 3/441 Yarns or threads with antistatic, conductive or radiation-shielding properties electroconductive, anti-static or radiation-shielding filaments D01F1/09, D01F1/106; anti-static fabrics D03D15/533; conducting, insulating or anti-static layers for floor coverings D06N7/0042
• CPC Class Codes: D03D 15/00 Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
• CPC Class Codes: D03D 15/258 Noble metal
• CPC Class Codes: D03D 15/267 Glass
• CPC Class Codes: D03D 15/292 Conjugate, i.e. bi- or multicomponent, fibres or filaments
• CPC Class Codes: D04B 1/14 Other fabrics or articles characterised primarily by the use of particular thread materials
• CPC Class Codes: D04B 21/16 incorporating synthetic threads
• CPC Class Codes: D10B 2101/06 Glass
• CPC Class Codes: D10B 2101/12 Carbon; Pitch
• CPC Class Codes: D10B 2101/20 Metallic fibres
• CPC Class Codes: D10B 2201/02 Cotton
• CPC Class Codes: D10B 2201/04 Linen
• CPC Class Codes: D10B 2201/24 Viscose
• CPC Class Codes: D10B 2211/02 Wool
• CPC Class Codes: D10B 2211/04 Silk
• CPC Class Codes: D10B 2321/10 polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
• CPC Class Codes: D10B 2331/021 aromatic polyamides, e.g. aramides
• CPC Class Codes: D10B 2331/04 polyesters, e.g. polyethylene terephthalate [PET]
• CPC Class Codes: D10B 2401/16 antistatic; conductive
• CPC Class Codes: Y10T 428/2913 Rod, strand, filament or fiber
• 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
• CPC Class Codes: Y10T 442/3065 : Including strand which is of specific structural definition
• CPC Class Codes: Y10T 442/3154 : Sheath-core multicomponent strand material
• CPC Class Codes: Y10T 442/3976 : Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]
• CPC Class Codes: Y10T 442/425 : Including strand which is of specific structural definition

Abstract

A textile made at least in part with conductive yarns for the purpose of generating heat from an electrical power source. The textile has conducting yarns, or “heaters”, with conductivity and spacing tailored to the electrical source to be used and the heat to be generated. The heater yarns have a positive temperature coefficient whereby the resistance of the yarn increases with an increase in temperature and decreases with a decrease in temperature. “Leads”, such as conductive yarns, can be used to supply electricity to the heater yarns. A coating to the textile can electrically insulate the textile as well as provide protection to the textile during activities such as laundering or use.

Claims

1. A woven textile having at least one positive temperature coefficient of resistance yarn (PTC yarn) woven into said textile, the PTC yarn having an increase in resistance with an increase in temperature and having a resistance range within the outer boundaries of from about 0.1 Ohms/Inch to about 2,500 Ohms/Inch.

2. The woven textile according to claim 1, further including a first electrically conductive lead woven into said textile and connected to the PTC yarn.

3. The woven textile according to claim 2, further including a second electrically conductive lead woven into said textile and connected to the PTC yarn, whereby the PTC yarn is connected between the first electrically conductive lead and the second electrically conductive lead.

4. A woven textile having a plurality of positive temperature coefficient of resistance yarns (PTC yarns) woven into said textile, the PTC yarns having an increase in resistance with an increase in temperature and having a resistance within the outer boundaries of from about 0.1 Ohms/Inch to about 2,500 Ohms/Inch.

5. The woven textile according to claim 4, further including a first electrically conductive lead woven into said textile and connected to the PTC yarns.

6. The woven textile according to claim 5, further including a second electrically conductive lead woven into said textile and connected to the PTC yarns, whereby the PTC yarns are connected between the first electrically conductive lead and the second electrically conductive lead.

7. A woven textile at least one positive temperature coefficient of resistance yarn (PTC yarn) woven with a plurality of nonconductive yarns into said textile, the PTC yarn having an increase in resistance with an increase in temperature and having a resistance within the outer boundaries of from about 0.1 Ohms/Inch to about 2,500 Ohms/Inch.

8. The woven textile according to claim 7, further including a first electrically conductive lead woven into said textile and connected to the PTC yarn.

9. The woven textile according to claim 8, further including a second electrically conductive lead woven into said textile and connected to the PTC yarn, whereby the PTC yarn is connected between the first electrically conductive lead and the second electrically conductive lead.

10. A woven textile having a plurality of positive temperature coefficient of resistance yarns (PTC yarns) woven with a plurality of nonconductive yarns into said textile, the PTC yarns having an increase in resistance with an increase in temperature and having a resistance within the outer boundaries of from about 0.1 Ohms/Inch to about 2,500 Ohms/Inch.

11. The woven textile according to claim 10, further including a first electrically conductive lead woven into said textile and connected to the PTC yarns.

12. The woven textile according to claim 11, further including a second electrically conductive lead woven into said textile and connected to the PTC yarns, whereby the PTC yarns are connected between the first electrically conductive lead and the second electrically conductive lead.