US5735145A
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US
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Weft knit wicking fabric and method of making same
Assignee: Monarch Knitting Machinery Corp
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Filing: 1996-05-20
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Granted: 1998-04-07
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Expires: 2016-05-20
Abstract
Abstract A multi-layer weft knit fabric for absorbing moisture and wicking it from a first fabric layer to a second layer is described, as well as a method for making the fabric. The multi-layer fabric includes a first hydrophobic layer and a second hydrophilic layer, with the layers being secured together by a series of courses forming spacer yarns which maintain the fabric layers in a spaced relationship relative to each other. The spacer yarns are adapted to wick moisture from the hydrophobic layer to the hydrophilic layer. The spacer yarns are preferably knit-in or laid-in to the respective knit fabric layers, and a plastic water-resistant layer can be secured proximate the hydrophilic fabric layer. A method of integrally knitting the multi-layer fabric on a circular knitting machine is also described.
Inventors
- 👤 Bruce M. Pernick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/14; D04B1/16; A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/537; D10; D10B; D10B2201/00; D10B2201/01; D10B2201/02; D10B2331/00; D10B2331/04; D10B2401/00; D10B2401/02; D10B2401/021; D10B2401/022; D10B2403/00; D10B2403/01; D10B2403/011; D10B2403/0112; D10B2403/0114; D10B2403/02; D10B2403/021; D10B2503/00; D10B2503/06; D10B2503/062
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
123 words
A method of making a weft knit, wicking fabric on a dual bed knitting machine comprising the steps of: knitting a first discrete fabric layer from a hydrophobic yarn on a first needle bed of the weft knitting machine, knitting a second discrete fabric layer from a hydrophilic yarn on a second needle bed of the weft knitting machine, and knitting a series of courses reciprocating between the first and second needle beds to form a plurality of spacer yarns the spacer yarns securing the first and second fabric layers together in a spaced relationship separated from each other, said series of courses being knit from a moisture transporting yarn for wicking moisture from the first fabric layer to the second fabric layer.
Claim 2
Independent Claim
123 words
A method of making a weft knit, wicking fabric on a dual bed knitting machine comprising the steps of: knitting a first discrete fabric layer from a hydrophobic yarn on a first needle bed of the weft knitting machine, knitting a second discrete fabric layer from a hydrophilic yarn on a second needle bed of the weft knitting machine, and knitting a series of courses reciprocating between the first and second needle beds to form a plurality of spacer yarns the spacer yarns securing the first and second fabric layers together in a spaced relationship separated from each other, said series of courses being knit from a moisture transporting yarn for wicking moisture from the first fabric layer to the second fabric layer.
Claim 3
Dependent Claim
66 words
The method according to claim 1, wherein said step of knitting a series of courses reciprocating between the first and second needle beds to form a plurality of spacer yarns securing the first and second fabric layers together in a spaced relationship to each other is performed such that the first and second fabric layers are substantially consistently spaced from each other across their respective widths.
Claim 4
Dependent Claim
88 words
The method according to claim 1, wherein said step of knitting a series of courses reciprocating between the first and second needle beds to form a plurality of spacer yarns securing the first and second fabric layers together in a spaced relationship to each other is performed such that each course of said series of courses forming the plurality of spacer yarns reciprocates directly from one needle bed to the other needle bed so that the spacer yarns extend substantially vertically between the first and second fabric layers.
Claim 5
Dependent Claim
53 words
The method according to claim 1, wherein said step of knitting first and second fabric layers and said series of courses reciprocating between the first and second needle beds further comprising knitting said second discrete fabric layer on a dial needle bed of a circular knitting machine having cylinder and dial needle beds.
Claim 6
Dependent Claim
32 words
The method according to claim 1, wherein said step of knitting a series of courses reciprocating between the first and second needle beds comprises laying the yarn into the first fabric layer.
Claim 7
Dependent Claim
32 words
The method according to claim 5, wherein said step of knitting a series of courses reciprocating between the first and second needle beds comprises laying the yarn into the second fabric layer.
Claim 8
Dependent Claim
32 words
The method according to claim 5, wherein said step of knitting a series of courses reciprocating between the first and second needle beds comprises knitting the yarn into the second fabric layer.
Claim 9
Dependent Claim
40 words
The method according to claim 1, further comprising the step of coating a surface of the hydrophilic layer remote from the hydrophobic layer with a layer of substantially continuous plastic, to thereby provide a moisture resistant surface on the fabric.
Claim 10
Dependent Claim
90 words
A multi-layer weft knit fabric for wicking moisture away from a first surface comprising: a first substantially hydrophobic weft knit discrete fabric layer, a second substantially hydrophilic weft knit discrete fabric layer, and a plurality of moisture transporting spacer yarns secured within the knit structure of each of said first and second layers and extending between the layers to secure the layers in spaced relationship separated from each other, said spacer yarns promoting wicking of moisture from said first knit substantially hydrophobic fabric layer to said second substantially hydrophilic layer.
Claim 11
Dependent Claim
90 words
A multi-layer weft knit fabric for wicking moisture away from a first surface comprising: a first substantially hydrophobic weft knit discrete fabric layer, a second substantially hydrophilic weft knit discrete fabric layer, and a plurality of moisture transporting spacer yarns secured within the knit structure of each of said first and second layers and extending between the layers to secure the layers in spaced relationship separated from each other, said spacer yarns promoting wicking of moisture from said first knit substantially hydrophobic fabric layer to said second substantially hydrophilic layer.
Claim 12
Dependent Claim
16 words
The fabric according to claim 9, further comprising a moisture-resistant layer secured adjacent said hydrophilic layer.
Claim 13
Dependent Claim
26 words
The fabric according to claim 10, wherein said moisture-resistant layer comprises a plastic coating on a surface of said hydrophilic layer remote from said hydrophobic layer.
Claim 14
Dependent Claim
12 words
The fabric according to claim 11, wherein said plastic coating comprises vinyl.
Claim 15
Dependent Claim
18 words
The fabric according to claim 9, wherein spacer yarns are laid into knit stitches forming said hydrophobic layer.
Claim 16
Dependent Claim
18 words
The fabric according to claim 13, wherein spacer yarns are laid into knit stitches forming said hydrophilic layer.
Claim 17
Dependent Claim
18 words
The fabric according to claim 14, wherein spacer yarns are knit into knit stitches forming said hydrophilic layer.
Claim 18
Dependent Claim
14 words
The fabric according to claim 9, wherein said hydrophobic layer comprises a polyester yarn.
Claim 19
Dependent Claim
22 words
The fabric according to claim 16, wherein said hydrophobic layer comprises a polyester monofilament yarn about 70 denier in size or smaller.
Claim 20
Dependent Claim
20 words
The fabric according to claim 16, wherein said hydrophobic layer comprises a multifilament polyester yarn about 50-300 denier in size.
Claim 21
Dependent Claim
16 words
The fabric according to claim 16, wherein said hydrophobic layer comprises a spun 18s-36s polyester yarn.
Claim 22
Dependent Claim
14 words
The fabric according to claim 9, wherein said spacer yarns comprise non-textured synthetic yarns.
Claim 23
Dependent Claim
24 words
The fabric according to claim 9, wherein said hydrophilic layer comprises a yarn selected from the group consisting of cotton, rayon, and blends thereof.
Claim 24
Dependent Claim
37 words
The fabric according to claim 9, wherein said spacer yarns are knit into knit stitches forming said hydrophilic layer, and further comprising a moisture-resistant coating on a surface of said hydrophilic layer remote from said hydrophobic layer.
Claim 25
Dependent Claim
80 words
A multi-layer, weft knit fabric comprising: a first discrete layer knit from a hydrophobic yarn, a second discrete layer knit from a hydrophilic yarn, a plurality of moisture transporting spacer yarns extending substantially between the first and second layers to hold them in a spaced relationship to each other and for wicking moisture from the first layer to the second layer, and a moisture-resistant layer secured adjacent the second layer, to block the transfer of moisture from the second layer.
Claim 26
Dependent Claim
80 words
A multi-layer, weft knit fabric comprising: a first discrete layer knit from a hydrophobic yarn, a second discrete layer knit from a hydrophilic yarn, a plurality of moisture transporting spacer yarns extending substantially between the first and second layers to hold them in a spaced relationship to each other and for wicking moisture from the first layer to the second layer, and a moisture-resistant layer secured adjacent the second layer, to block the transfer of moisture from the second layer.
Claim 27
Dependent Claim
15 words
The fabric according to claim 23, wherein said first layer comprises a spun polyester yarn.
Claim 28
Dependent Claim
14 words
The fabric according to claim 24, wherein said spacer yarns comprise non-textured polyester yarns.
Claim 29
Dependent Claim
32 words
The fabric according to claim 23, wherein said first layer comprises a spun polyester yarn, said second layer comprises a natural fiber yarn, and said spacer yarns comprise a non-textured polyester yarn.
Claim 30
Dependent Claim
55 words
The fabric according to claim 23, wherein said spacer yarns are laid into said first fabric layer and knit into said second fabric layer in a plated relationship with the hydrophilic yarn, and said moisture-resistant layer comprises a plastic coating secured to a surface of said second fabric layer remote from said first fabric layer.
Claim 31
Dependent Claim
81 words
An item of bedclothing for incontinent use comprising: an upper substantially hydrophobic weft knit discrete fabric layer, a lower substantially hydrophilic weft knit discrete fabric layer, and a plurality of moisture transporting spacer yarns secured within the knit structure of each of the upper and lower layers and extending between the layers to secure them in spaced relationship separated from each other, said spacer yarns for wicking moisture from the upper substantially hydrophobic fabric layer to the lower substantially hydrophilic layer.
Claim 32
Dependent Claim
81 words
An item of bedclothing for incontinent use comprising: an upper substantially hydrophobic weft knit discrete fabric layer, a lower substantially hydrophilic weft knit discrete fabric layer, and a plurality of moisture transporting spacer yarns secured within the knit structure of each of the upper and lower layers and extending between the layers to secure them in spaced relationship separated from each other, said spacer yarns for wicking moisture from the upper substantially hydrophobic fabric layer to the lower substantially hydrophilic layer.
Claim 33
Dependent Claim
16 words
The bedclothing according to claim 28, further comprising a moisture-resistant layer secured adjacent said hydrophilic layer.
Claim 34
Dependent Claim
26 words
The bedclothing according to claim 28, wherein said moisture-resistant layer comprises a plastic coating on a surface of said hydrophilic layer remote from said hydrophobic layer.
Claim 35
Dependent Claim
27 words
The bedclothing according to claim 30, wherein spacer yarns are laid into knit stitches forming said hydrophobic layer, and knit into knit stitches forming said hydrophilic layer.
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