Knittable yarn and safety apparel
AssigneeWells Lamont Industry Group LLC
InventorJoseph Hummel
Life of this patent
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Abstract
A cut-resistant, machine knittable, composite yarn that utilizes a yarn or fiber strand or component of normal strength (no greater than 10 grams per denier tenacity) liquid crystal polymer, to provide a composite yarn of comparable high cut-resistance to composite yarns of similar construction that utilize high strength synthetic yarn or fiber. Also protective articles of apparel knitted from such yarn, specifically a cut-resistant protective glove.
Claims17
A cut-resistant yarn suitable for machine knitting having a core comprised of synthetic fiber, means bundling the core fiber, a wrapping of wire about the bundled core, and two wrappings of synthetic fiber each wound in an opposite direction over the wrapping of wire, said synthetic fiber of one of said synthetic fiber wrappings and core or both being a liquid crystal polymer having a tenacity of no more than 10 grams per denier.
A cut-resistant yarn suitable for machine knitting having a core comprised of synthetic fiber, means bundling the core fiber, a wrapping of wire about the bundled core, and two wrappings of synthetic fiber each wound in an opposite direction over the wrapping of wire, said synthetic fiber of one of said synthetic fiber wrappings and core or both being a liquid crystal polymer having a tenacity of no more than 10 grams per denier, and wherein said synthetic fiber of which the core is comprised is a liquid crystal polymer having a tenacity of no more than 10 grams per denier and a denier of from 200 to 3000, said means bundling the core fiber comprises two wraps of fiber having a denier of from 70 to 120, said wrapping of wire comprises a strand of stainless steel having a diameter of from 0.001 to 0.006 inch, and one of said two wrappings of synthetic fiber is a liquid crystal polymer having a tenacity of no more than 10 grams per denier and a denier of from 200 to 1500.
A cut-resistant yarn suitable for machine knitting having a core comprising a liquid crystal polymer fiber having a tenacity of no more than 10 grams per denier, a wrapping of wire about the core, and two wrappings of synthetic fiber over the wire, each of said two wrappings being wound in an opposite direction from the other and selected from the group consisting of liquid crystal polymer, aramid, high strength stretched polyethylene, polyester, and nylon.
A cut-resistant yarn suitable for machine knitting, comprising:
- (a) a 200 to 2000 denier core comprised of synthetic fibers;
- (b) means retaining the core fibers in a bundle;
- (c) a wrapping having a maximum diameter of 0.010 inch of material selected from the group consisting of metal wire and glass fiber, two to twelve turns per inch, disposed about the core and said means;
- (d) a wrapping of 200 to 3000 denier liquid crystal polymer fiber having a tenacity of no more than 10 grams per denier disposed about said material wrapping, with turns directly adjacent each other;
- and
- (e) another wrapping of 200 to 2000 denier synthetic fiber disposed about the first-mentioned wrap of synthetic fiber, with turns directly adjacent each other.
A cut-resistant yarn suitable for machine knitting, comprising:
- (a) a 200 to 2000 denier core comprised of synthetic fibers;
- (b) means retaining the core fibers in a bundle;
- (c) a wrapping having a maximum diameter of 0.010 inch of material selected from the group consisting of metal wire and glass fiber, two to twelve turns per inch, disposed about the core and said means;
- (d) a wrapping of 200 to 3000 denier liquid crystal polymer fiber having a tenacity of no more than 10 grams per denier disposed about said material wrapping, with turns directly adjacent each other;
- and
- (e) another wrapping of 200 to 2000 denier synthetic fiber disposed about the first-mentioned wrap of synthetic fiber, with turns directly adjacent each other, and wherein the means retaining the core fibers in a bundle comprises two wrappings of synthetic fiber each having a denier of at least 50 and wrapped directly about the core fibers at least two turns per inch.
Dependencies are inferred from the claim text.