WO2024128982A1 - Tissu absorbant - Google Patents

Tissu absorbant Download PDF

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Publication number
WO2024128982A1
WO2024128982A1 PCT/SG2023/050834 SG2023050834W WO2024128982A1 WO 2024128982 A1 WO2024128982 A1 WO 2024128982A1 SG 2023050834 W SG2023050834 W SG 2023050834W WO 2024128982 A1 WO2024128982 A1 WO 2024128982A1
Authority
WO
WIPO (PCT)
Prior art keywords
yams
yarns
absorbent
fabric
fabric according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SG2023/050834
Other languages
English (en)
Inventor
Kalu Arachchige Manjula Nayanajith JAYAWARDANA
Uswaththa Arachchige Nimesh MADHURANGA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noyon Lanka Pvt Ltd
Original Assignee
Noyon Lanka Pvt Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Noyon Lanka Pvt Ltd filed Critical Noyon Lanka Pvt Ltd
Publication of WO2024128982A1 publication Critical patent/WO2024128982A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/06—Patterned fabrics or articles
    • D04B21/08—Patterned fabrics or articles characterised by thread material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15276—Properties of the article, e.g. stiffness or absorbency washable
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/021—Moisture-responsive characteristics hydrophobic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene
    • D10B2509/02—Bandages, dressings or absorbent pads
    • D10B2509/026—Absorbent pads; Tampons; Laundry; Towels

Definitions

  • the present disclosure generally relates to an absorbent fabric. More particularly, the present disclosure describes various embodiments of an absorbent fabric formed as a unitary layer.
  • absorbent fabrics such as to absorb bodily fluids from a user.
  • absorbent fabrics have been used in products such as sanitary pads, as well as in undergarments.
  • current absorbent fabrics are usually composites of multiple layers, resulting in the fabrics being thick and uncomfortable.
  • an absorbent fabric formed as a unitary layer having a first surface and an opposing second surface.
  • the fabric comprises a plurality of different yams knitted together between the first and second surfaces.
  • the plurality of different yams comprise a plurality of first yams running in a wale direction for wicking fluid, a plurality of second yams running in a course direction for distributing fluid along the fabric, and a plurality of third yams running in the course direction for absorbing fluid.
  • the first yams, second yams, and third yams are interconnected to each other such that fluid is communicable between the first yams, second yams, and third yams, the first surface comprises substantially of the first yams, and the second surface comprises substantially of the third yams.
  • Figure 1 is an illustration of an absorbent fabric in accordance with embodiments of the present disclosure.
  • Figures 2A and 2B are illustrations of knitted yams of the absorbent fabric.
  • Figures 3A to 3C are illustrations of the absorbent fabric with three different yams.
  • Figures 4A to 4C are illustrations of the absorbent fabric with four different yams.
  • Figures 5A and 5B are further illustrations of the absorbent fabric with different yams.
  • depiction of a given element or consideration or use of a particular element number in a particular figure or a reference thereto in corresponding descriptive material can encompass the same, an equivalent, or an analogous element or element number identified in another figure or descriptive material associated therewith.
  • references to “an embodiment I example”, “another embodiment I example”, “some embodiments I examples”, “some other embodiments I examples”, and so on, indicate that the embodiment(s) I example(s) so described may include a particular feature, structure, characteristic, property, element, or limitation, but that not every embodiment I example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Furthermore, repeated use of the phrase “in an embodiment I example” or “in another embodiment I example” does not necessarily refer to the same embodiment I example.
  • set is defined as a non-empty finite organisation of elements that mathematically exhibits a cardinality of at least one (e.g. a set as defined herein can correspond to a unit, singlet, or single-element set, or a multiple-element set), in accordance with known mathematical definitions.
  • the terms “first”, “second”, etc. are used merely as labels or identifiers and are not intended to impose numerical requirements on their associated terms.
  • the absorbent fabric 100 is formed as a unitary or single layer having a first surface 110 and an opposing second surface 120.
  • the absorbent fabric 100 may be used in products such sanitary pads, diapers, and gusset materials.
  • the absorbent may be used to make absorbent garments worn by a user, particularly at parts of the body where there may be excretions of bodily fluids, such as urine, menstrual blood, breast milk, saliva, and sweat. Examples of such garments include brassieres, panties, lingerie, active wear, sportswear, swimwear, socks, footwear, and similar close-fitting or form-fitting garments.
  • the absorbent fabric 100 can be used for standalone absorbent materials such as bedding materials, towels, or wipes.
  • the absorbent fabric 100 can be used for medical textile applications such as wound dressings and slow-release drug delivery dressings.
  • the absorbent fabric 100 includes a plurality of different yams 200 knitted together between the first surface 110 and second surface 120.
  • the yams 200 are knitted together by warp knitting and in a single knitting run.
  • the plurality of different yams 200 include a plurality of first yams 210, a plurality of second yams 220, and a plurality of third yarns 230.
  • the plurality of first yarns 210 run in a wale direction for wicking fluid.
  • the plurality of second yarns 220 run in a course direction for distributing fluid along the absorbent fabric 100.
  • the plurality of third yarns 230 run in the course direction for absorbing fluid.
  • wale refers to a column of loops running vertically (y- axis), and course refers to a crosswise row of loops running horizontally (x-axis).
  • the first yams 210, second yarns 220, and third yams 230 are interconnected to each other such that fluid is communicable between the first yams 210, second yams 220, and third yams 230.
  • the first surface 110 comprises substantially of the first yams 210. This may mean that the first yams 210 form from 55% to 100%, such as 60% to 99%, 65% to 98%, 70% to 97%, 75% to 96%, 80% to 95%, or 85% to 90%, of the first surface 110.
  • the second surface 120 comprises substantially of the third yams 230. This may mean that the third yams 230 form from 55% to 100%, such as 60% to 99%, 65% to 98%, 70% to 97%, 75% to 96%, 80% to 95%, or 85% to 90%, of the second surface 120.
  • the yams 200 are knitted such that each of the first yams 210 adopts a looping structure and each of the second yams 220 is held in place by each loop of the first yams 210 that each of the second yams 220 contacts in the course direction.
  • the first yams 210 may be arranged in a half-tricot, tricot, single atlas, diamond net, or pillar stich arrangement.
  • the yams 200 are knitted such that each of the third yams 230 is intermittently interlooped with the first yams 210 such that at least some of the third yams 230 extend outwardly from the second surface 120.
  • the outward extension of the third yams 230 create a lofted surface on the second surface 120.
  • the third yams 230 may be intermittently interlooped with the first yams 210 at regular or irregular intervals.
  • the third yams 230 are intermittently interlooped with the first yams 210 from every second to every tenth loop of the first yams 210 in the course direction.
  • the first yams 210 acquires fluid, for example when the first surface 110 contacts the user’s skin, and wicks the fluid to the second yams 220.
  • the second yarns 220 distribute and spread the fluid along the absorbent fabric 100, specifically along a plane parallel to the first surface 110 and second surface 120.
  • the third yarns 230 receive the fluid from the second yams 220 and absorb the fluid.
  • the third yams 230 are thus able to absorb fluid from the user, while the first surface 110, which comprises substantially of the first yams 110, remains dry and comfortable for the user.
  • the third yams 230 are soaked with fluid, such as a liquid drug, and the second surface 120 is in contact with the user’s skin.
  • the third yams 230 deliver the liquid drug through the second surface 120 to the user’s skin, while the second yams 220 and first yams 210 prevent the liquid drug from leaking through the first surface 110.
  • the third yams 230 are soaked with fluid, such as a liquid drug, and the first surface 110 is in contact with the user’s skin.
  • the second yams 220 receive the liquid drug from the third yams 230 and spread the fluid along the absorbent fabric 100.
  • the first yams 210 receive the liquid drug from the second yams 220 and deliver the liquid drug through the first surface 110 to the user’s skin. This allows for slow release of the liquid drug from the first surface 110, such as for skin care and cosmetic applications.
  • the first yams 210 and second yams 220 is made of a material suitable for wicking and/or distributing fluid, such as a hydrophobic material. This may be because the material is inherently hydrophobic in nature or because it has been treated to have hydrophobic properties (e.g. hydrophilic yams such as wool or cotton that have been treated or functionalized with a hydrophobic treatment).
  • the material of the first yams 210 and second yams 220 may be naturally moisture- wicking and/or be treated to become moisture-wicking.
  • the material may be 100% polyester fabric with French Terry knit and a denier differential that assists in moving fluid.
  • Other suitable materials include blends of polyester, polypropylene, polyethylene, nylon, regenerated materials (e.g. viscose blends), natural fibres (e.g. bamboo), and cotton.
  • the material may optionally have triangular ridge structures of French Terry knitting that may face the user’s skin, and the advantage of these structures is that less surface area comes into contact with the skin and therefore reduces any sensation of feeling wetness against the skin.
  • the material may optionally have flat structures with a capillary gradient to generate differential capillary forces that move the liquid.
  • the material of the first yams 210 and second yams 220 may be 51% cotton.
  • the material may be treated with a hydrophilic material or composition (e.g. polyethylene oxide, polyvinyl alcohol, polyacrylamide, poly acrylic acid, polyvinyl pyrrolidone, hydrophilic silicones, or hydrophilic polyurethanes) and/or a hydrophobic material or composition (e.g. silicones, polyfluoroalkyl acrylates, polyacrylates, polyurethanes, or waxes) to create a net hydrophilic gradient.
  • a hydrophilic material or composition e.g. polyethylene oxide, polyvinyl alcohol, polyacrylamide, poly acrylic acid, polyvinyl pyrrolidone, hydrophilic silicones, or hydrophilic polyurethanes
  • a hydrophobic material or composition e.g. silicones, polyfluoroalkyl acrylates, polyacrylates, polyurethanes, or waxes
  • the rate of wicking may be controlled to be faster or slower.
  • the rate of wicking may be controlled by the density, thickness, or composition of the first yams 210 and second yams 220 and/or by the amount and type of hydrophobic and/or hydrophilic material applied to the first yams 210 and second yams 220.
  • the rate of wicking may be set such that the first surface 110 that may be in direct contact with the user feels dry or mostly dry to the user.
  • differential capillary forces can be created by the fabric structure of the absorbent fabric 100 with different pore sizes that form funnel-like structures through the material in cross-section, where liquid is pulled from the larger pore sizes to the smaller pore sizes, due to the differential capillary pressure.
  • the third yams 230 is made of an absorbent material suitable for absorbing and retaining fluid.
  • the absorbent material may be inherently hydrophilic or may have been treated to provide a hydrophilic material.
  • a texturized polyester can be used to hold liquid, such as a polyester towel material.
  • the absorbent material may include cotton, a cotton blend, foam, a synthetic material, absorbent polymeric foam, a nanotechnology-based or -produced material, or any other moisture-absorbent material.
  • the absorbent material may have a weight of 50 to 900 g/m 2 , such as 180 to 300 g/m 2 .
  • the absorbent material may be made from an 80:20 blend of polyester: nylon with a microfiber double terry knit.
  • Other suitable absorbent materials include polypropylene, polyethylene, or any cellulose-based fabric and their blends including cotton, bamboo, etc.
  • the absorbent material may be a 100% polyester double terry fabric. This material is approximately 90% air and so allows for a higher absorbent capacity, as moisture fills up the air gaps of the polyester terry fabric without significant expansion of the polyester fibres. This does not translate into significantly thicker absorbent fabric 100.
  • the absorbent material may be made from a blended fibre comprising two or more of superabsorbent polymer (SAP), hydrogel, and polyester.
  • the yams 200 may include an antimicrobial agent or substance.
  • the antimicrobial substance may be one or more substances selected from the group consisting of a silver-containing substance, titanium dioxide, a quaternary silane, hydrogen peroxide, triclosan, and zinc pyrithione.
  • the yams 200 may include an anti-odour agent or substance that combats odour.
  • the substance that combats odour may be one or more substances selected from the group consisting of nanoparticles with acid-neutralising pockets, high surface area mineral compositions, high surface area ceramic compositions, high surface area clay compositions, and plant-based deodorizers such as essential mint oils.
  • the yams 200 may include a stain-resistant, stain-release, or stainproof agent or substance. Further additionally or alternatively, the yams 200 may include a stretchable or elastic material to impart stretch and recovery properties to the absorbent fabric 100, which can improve drapability, fit, and freedom of movement for the user.
  • the absorbent fabric 100 is washable and reusable while maintaining at least its initial absorbency. More preferably, the absorbent fabric 100 is washable for at least 20 machine wash and dry cycles such that the absorbent fabric 100 remains reusable with at least 90% of its initial absorbency.
  • the absorbent fabric 100 is formed as a single layer with different types of yams 200 with different functionalities.
  • the single-layer absorbent fabric 100 has first yams 210 for fluid wicking, second yams 220 for fluid distribution, and third yams 230 for fluid absorption. These functionalities remain after multiple use, wash and dry cycles with insignificant functional and aesthetic change.
  • the various yams 200 of the absorbent fabric 100 are knitted in a single machine run such that the absorbent fabric 100 does not have any additional layers. This knitting of the yams 200 allows the different yams 200 to be simultaneously interconnected in a desirable manner to achieve the various yam functionalities, including wicking, distribution, and absorption. This knitting process also allows the various yam functionalities to be efficiently combined and integrated in the single-layer absorbent fabric 100, such that the absorbent fabric 100 has excellent fluid management and absorption properties, while minimizing the thickness of the absorbent fabric 100.
  • the absorbent fabric 100 may have various forms with various knitting configurations of the different yams 200, including but not limited to the first yams 210, second yams 220, and third yams 230. It will be appreciated that the distribution components (second yams 220) interconnect the acquisition components (first yams 210) and the absorbent components (third yams 230). The distribution components receive the fluid acquired by the acquisition components and distributes along the absorbent fabric 100 for evenly distributed retention within the absorbent components.
  • the knitting and interloping interconnection between the various yams 200 enable the distribution components to be connected with the acquisition components and the absorbent components, hence the distribution components can distribute fluid across the acquisition components and the absorbent components as well to facilitate wicking.
  • the absorbent components absorb and retain the liquid transported by the distribution components.
  • the absorbent components are interconnected closely with the distribution components, and the high liquid retention capability of the material of the absorbent components ensures high liquid retention capacity of the absorbent fabric 100.
  • the different yams 200 of the absorbent fabric 100 include the first yams 210 running in the wale direction for wicking fluid, the second yams 220 running in the course direction for distributing fluid along the absorbent fabric 100, and the third yams 230 running in the course direction for absorbing fluid.
  • the first yams 210, second yams 220, and third yams 230 are designated as P1 , P2, and Q1 , respectively.
  • the first surface 110 comprises substantially of the first yams 210 (P1 )
  • the second surface 120 comprises substantially of the third yams 230 (Q1).
  • Each of the first yams 210 (P1 ) may adopt a looping structure and each of the second yams 220 (P2) may be held in place by each loop of the first yams 210 (P1) that each of the second yams 220 (P2) contacts in the course direction.
  • Each of the third yams 230 (Q1) may be intermittently interlooped with the first yams 210 (P1 ) such that at least some of the third yams 230 (Q1) extend outwardly from the second surface 120, thereby forming a lofted second surface 120.
  • the third yams 230 may be intermittently interlooped with the first yams 210 at regular or irregular intervals, such as from every second to every tenth loop of the first yams 210 in the course direction.
  • the first yams 210 (P1 ) and second yams 220 (P2) may include a suitable wicking material as mentioned above.
  • the material for the first yams 210 (P1 ) and second yams 220 (P2) may have a Denier value of 30 D to 1000 D.
  • the material for the first yams 210 (P1 ) may have a Denier value of 30 D to 50 D.
  • the material for the second yams 220 (P2) may have a Denier value of 100 D to 150 D.
  • the third yams 230 (Q1 ) may include a suitable absorbent material as mentioned above.
  • the material for the third yams 230 (Q1 ) may have a Denier value of 30 D to 2000 D.
  • the material for the third yams 230 (Q1 ) may have a Denier value of 800 D to 1200 D.
  • the different yams 200 of the absorbent fabric 100 include the first yams 210 running in the wale direction for wicking fluid, the second yams 220 running in the course direction for distributing fluid along the absorbent fabric 100, and the third yams 230 running in the course direction for absorbing fluid.
  • the different yams 200 further include a plurality of fourth yams 240 running in the course direction for distributing fluid along the absorbent fabric 100, similar to the functionality of the second yams 220.
  • the first yams 210, second yams 220, third yams 230, and fourth yams 240 are designated as P1 , P2, Q1 , and P3, respectively.
  • the first surface 110 may comprise substantially of the first yams 210 (P1 ), and the second surface 120 may comprise substantially of the third yams 230 (Q1 ) and fourth yams 240 (P3).
  • the first surface 110 may comprise substantially of the first yams 210 (P1 ) and fourth yams 240 (P3), and the second surface 120 may comprise substantially of the third yams 230 (Q1).
  • Each of the first yams 210 (P1 ) may adopt a looping structure and each of the second yams 220 (P2) may be held in place by each loop of the first yams 210 (P1) that each of the second yams 220 (P2) contacts in the course direction.
  • Each of the third yams 230 (Q1) may be intermittently interlooped with the first yams 210 (P1 ) such that at least some of the third yams 230 (Q1) extend outwardly from the second surface 120, thereby forming a lofted second surface 120.
  • the third yams 230 may be intermittently interlooped with the first yams 210 at regular or irregular intervals, such as from every second to every tenth loop of the first yams 210 in the course direction.
  • the fourth yams 240 (P3) may be intermittently interlooped with the first yams 210 (P1), such that the fourth yams 240 (P3) intermittently separate the third yams 230 (Q1 ).
  • the third yams 230 and fourth yams 240 may have an alternating arrangement along each course, such as shown in Figure 4B. Further, the third yams 230 (Q1 ) may be thicker than the fourth yams 240 (P3). This may result in portions of the second surface 120 comprising the third yams 230 (Q1 ) being thicker than portions of the second surface 120 comprising the fourth yams 240 (P3), such as shown in Figure 4B.
  • the fourth yams 240 (P3) may be thicker than the third yams 230 (Q1 ), which may result in portions of the second surface 120 comprising the fourth yams 240 (P3) being thicker than portions of the second surface 120 comprising the third yams 230 (Q1 ).
  • the third yams 230 (Q1 ) and fourth yarns 240 (P3) have substantially equal thickness, which may result in the second surface 120 comprising substantially of the third yams 230 (Q1) and fourth yarns 240 (P3) having substantially equal thickness.
  • the thickness of the yams 200 may be adapted and used for aesthetic purposes, such as for sight and/or feel.
  • the thickness of the third yams 230 (Q1 ) and fourth yams 240 (P3) may be varied within a course, or within courses to create a desired texture.
  • the first yams 210 (P1 ), second yams 220 (P2), and fourth yams 240 (P3) may include a suitable wicking material as mentioned above.
  • the material for the first yams 210 (P1 ), second yams 220 (P2), and fourth yams 240 (P3) may have a Denier value of 30 D to 1000 D.
  • the material for the first yams 210 (P1 ) may have a Denier value of 30 D to 50 D.
  • the material for the second yams 220 (P2) may have a Denier value of 100 D to 150 D.
  • the material for the fourth yams 240 (P3) may have a Denier value of 30 D to 1000 D.
  • the third yams 230 (Q1 ) may include a suitable absorbent material as mentioned above.
  • the material for the third yams 230 (Q1) may have a Denier value of 30 D to 2000 D.
  • the material for the third yams 230 (Q1 ) may have a Denier value of 800 D to 1200 D.
  • the third yams 230 (Q1 ) and fourth yams 240 (P3) occupy the same surface (second surface 120) of the absorbent fabric 100.
  • the second surface 120 comprises substantially of the third yams 230 (Q1 ) and fourth yams 240 (P3).
  • the fourth yams 240 (P3) may occupy the opposing surface (first surface 110) instead.
  • the first surface 110 comprises substantially of the first yams 210 (P1 ) and fourth yams 240 (P3).
  • each of the first yams 210 (P1 ) may adopt a looping structure and each of the fourth yams 240 (P3) may be held in place by each loop of the first yams 210 (P1) that each of the fourth yams 240 (P3) contacts in the course direction.
  • the third yams 230 (Q1) and fourth yams 240 (P3) may be present across the entire course on the respective opposing surfaces. This may provide additional wicking properties that may be useful in certain applications.
  • the absorbent fabric 100 may be divided into a plurality of different regions.
  • the absorbent fabric 100 may be divided into one or more first regions 100A and one or more second regions 100B.
  • the absorbent fabric 100 may comprise only the first regions 100A or only the second regions 100B.
  • the first region 100A includes the first yarns 210 (P1 ), second yams 220 (P2), and third yarns 230 (Q1 ), similar to the embodiments shown in Figures 3A to 3C.
  • the second region 100B includes a set of absorbent islands 130 and a set of wicking seas 132 separating the absorbent islands 130 from each other.
  • Each absorbent island 130 includes the first yams 210 (P1 ), second yams 220 (P2), and third yams 230 (Q1 ), and each wicking sea 132 includes the first yams 210 (P1), second yams 220 (P2), and fourth yams 240 (P3), similar to the embodiments shown in Figures 4A to 4C.
  • Each absorbent island 130 may be defined in a hexagonal shape. It will be appreciated that the absorbent island 130 may be defined in any shape, and that each wicking sea 132 may similarly be defined in any shape.
  • the first region 100A includes the first yams 210 (P1 ), second yams 220 (P2), and third yams 230 (Q1 ), similar to the embodiments shown in Figures 3A to 3C.
  • the second region 100B includes a set of wicking islands 140 and a set of absorbent seas 142 separating the wicking islands 140 from each other.
  • Each wicking island 140 includes the first yams 210 (P1 ), second yams 220 (P2), and fourth yams 240 (P3), and each absorbent sea 142 includes the first yams 210 (P1 ), second yams 220 (P2), and third yams 230 (Q1 ), similar to the embodiments shown in Figures 4A to 4C.
  • Each wicking island 140 may be defined in a hexagonal shape. It will be appreciated that the wicking island 140 may be defined in any shape, and that each absorbent sea 142 may similarly be defined in any shape.
  • the third yams 230 (Q1 ) and fourth yams 240 (P3) in the second region 100B alternate along each course to form the absorbent islands 130 and wicking seas 132.
  • the third yams 230 (Q1) and fourth yarns 240 (P3) in the second region 100B alternate along each course to form the wicking islands 140 and absorbent seas 142.
  • the second region 100B thus has an alternating arrangement of the third yams 230 (Q1) and fourth yams 240 (P3).
  • the yams 200 may be arranged in various ways and is not limited to the shapes and patterns shown in Figures 5A and 5B, such as the hexagonal absorbent islands 130 and hexagonal wicking islands 140. It will be appreciated that the thickness of the yams 200, including the first yams 210 (P1), second yams 220 (P2), third yams 230 (Q1 ), and/or fourth yams 240 (P3), may be adapted and used for aesthetic purposes, such as for sight and/or feel.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)

Abstract

La présente divulgation concerne d'une manière générale un tissu absorbant (100) ayant la forme d'une couche unitaire ayant une première surface (110) et une seconde surface opposée (120). Le tissu comprend différents fils (200) tricotés ensemble entre les première et seconde surfaces (110, 120). Les fils (200) comprennent des premiers fils (210) s'étendant dans une direction de colonne pour le fluide à effet de mèche, des deuxièmes fils (220) s'étendant dans une direction de rangée pour distribuer un fluide le long du tissu (100), et des troisièmes fils (230) s'étendant dans la direction de rangée pour absorber le fluide. Les premiers fils (210), les deuxièmes fils (220) et les troisièmes fils (230) sont interreliés les uns aux autres de telle sorte que le fluide peut passer entre les premiers fils (210), les deuxièmes fils (220) et les troisièmes fils (230), la première surface (110) comprenant sensiblement les premiers fils (210), et la deuxième surface (120) comprenant sensiblement les troisièmes fils (230).
PCT/SG2023/050834 2022-12-16 2023-12-15 Tissu absorbant Ceased WO2024128982A1 (fr)

Applications Claiming Priority (2)

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SG10202260483R 2022-12-16
SG10202260483R 2022-12-16

Publications (1)

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WO2024128982A1 true WO2024128982A1 (fr) 2024-06-20

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Family Applications (1)

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PCT/SG2023/050834 Ceased WO2024128982A1 (fr) 2022-12-16 2023-12-15 Tissu absorbant

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WO (1) WO2024128982A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429802A2 (fr) * 1989-11-30 1991-06-05 Guilford Mills, Inc. Article textile avec couches opposées, une absorbante et une non-absorbante, et procédé pour fabriquer celui-ci
US5759662A (en) * 1996-12-19 1998-06-02 Standard Textile Co., Inc. Facing fabric for reusable incontinent products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429802A2 (fr) * 1989-11-30 1991-06-05 Guilford Mills, Inc. Article textile avec couches opposées, une absorbante et une non-absorbante, et procédé pour fabriquer celui-ci
US5759662A (en) * 1996-12-19 1998-06-02 Standard Textile Co., Inc. Facing fabric for reusable incontinent products

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