Nonflammable sliver knit high pile fabric

• US 4,513,042 A
• Filed: 07/23/1984
• Issued: 04/23/1985
• Est. Priority Date: 07/23/1984
• Status: Expired due to Term

• Current Assignee: Glenoit Assets Corporation
• Original Assignee: Glenoit Mills, Inc. (Haixin Group (Hk) Co. Ltd.)
• Inventors: Lumb, Douglas S.
• Primary Examiner(s): Bell, James J.
• Application Number:
  US06/633,291
• Time in Patent Office: 274 Days
• Field of Search: 428/95, 428/97, 428/253, 428/920, 66/9 A, 66/191, 28/159, 427/289, 427/389.9
• US Class Current: 428/95
• CPC Class Codes: A41D 31/08 Heat resistant; Fire retardant
• CPC Class Codes: A62B 17/00 Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes protective clothing or garments for work or sport A41D13/00; e.g. overalls A41D13/02, surgical gowns A41D13/12; materials for protecting clothing A41D31/04; protecting eyes or ears A61F9/00; composition of materials for protective clothing A62D5/00; life-saving garments for use at sea B63C; diving suits B63C11/02; flight suits B64D10/00; space suits B64G6/00; bullet-proof clothing F41H1/02
• CPC Class Codes: D04B 1/025 incorporating loose fibres, e.g. high-pile fabrics or artificial fur
• CPC Class Codes: D06N 2201/02 Synthetic macromolecular fibres
• CPC Class Codes: D06N 2201/0272 Aromatic polyamide fibres
• CPC Class Codes: D06N 2201/06 Animal fibres, e.g. hair, wool, silk
• CPC Class Codes: D06N 2209/065 Insulating
• CPC Class Codes: D06N 2209/067 Flame resistant, fire resistant
• CPC Class Codes: D06N 3/0009 using knitted fabrics
• CPC Class Codes: D10B 2501/04 Outerwear; Protective garments
• CPC Class Codes: D10B 2505/08 Upholstery, mattresses
• CPC Class Codes: Y10S 428/92 Fire or heat protection feature
• CPC Class Codes: Y10T 428/23979 Particular backing structure or composition
• CPC Class Codes: Y10T 428/23993 Composition of pile or adhesive

Abstract

A nonflammable sliver knit high pile fabric. The backing fabric is knitted from a flame retardant aramind spun yarn, the pile fibers are composed of a mixture of flame retardant rayon fibers and superwashed wool fibers and the back coating is constituted of a flame retardant composition. The fabric not only is flameproof, but it does not react to a flame by melting. It has good thermal insulation properties and is stable against shrinkage. The fabric is especially useful in the manufacture of wearing apparel intended for use in extreme environments, such as fire fighting and cold weather military operations.

Claims

1. A nonflammable sliver knit high pile fabric characterized by

(a) a backing fabric knitted from flame retardant aramid spun yarn,

(b) pile fibers composed of a mixture of flame retardant rayon fibers and superwashed wool fibers,

(c) said mixture of fibers falling within the general range of 55% to 70% of said rayon fibers and 45% to 30% of said wool fibers, and

(d) a back coating composed of a flame retardant composition.

2. The fabric of Claim 1, characterized by the pile fibers being composed of a mixture constituted of 65% flame retardant rayon fibers and 35% superwashed wool fibers.

3. The fabric of Claim 1, characterized by a back coating composed of an acrylic latex composition.

4. A flame proof sliver knit high pile fabric characterized by

(a) a backing fabric knitted from flame retardant aramid yarn,

(b) pile fibers composed of a mixture of flame retardant rayon fibers and shrink resistant wool fibers,

(c) said mixture of fibers containing not less than 55% of said rayon fibers and not less than 30% of said wool fibers, and

(d) a flexible, flame retardant back coating for stabilizing the fabric.

5. A process of making nonflammable sliver knit high pile fabric comprising the following steps:

(a) blending staple flame retardant rayon fibers and staple superwashed wool fibers to provide a mixture of such fibers falling within the general range of 55% to 70% of said rayon fibers and 45% to 30% of said wool fibers,

(b) carding the mixed fibers to provide a sliver,

(c) knitting the sliver with a backing yarn composed of a flame retardant aramid yarn to produce a high pile fabric,

(d) back coating the high pile fabric with a flame retardant coating and

(e) shearing the pile face of the fabric.

6. The process of Claim 5, further including the step of blending the fibers to produce a fiber mixture constituted of 65% flame retardant rayon fibers and 35% superwashed wool fibers.

7. The process of Claim 5, further including the step of tumbling the pile fabric in the presence of steam to produce a pile face having a pebble sheepskin effect.