Classifications

• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D31/00—Materials specially adapted for outerwear
  • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
  • A41D31/30—Antimicrobial, e.g. antibacterial
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
  • D02G3/04—Blended or other yarns or threads containing components made from different materials
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
  • D02G3/12—Threads containing metallic filaments or strips
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
  • D02G3/449—Yarns or threads with antibacterial properties
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
  • D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
  • D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
  • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
• • 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
  • D10B2101/00—Inorganic fibres
  • D10B2101/10—Inorganic fibres based on non-oxides other than metals
  • D10B2101/12—Carbon; Pitch
• • 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
  • D10B2101/00—Inorganic fibres
  • D10B2101/20—Metallic fibres
• • 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
  • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
• • 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
  • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
  • D10B2201/01—Natural vegetable fibres
  • D10B2201/02—Cotton
• • 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
  • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
  • D10B2201/20—Cellulose-derived artificial fibres
  • D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
  • D10B2201/24—Viscose
• • 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
  • D10B2401/00—Physical properties
  • D10B2401/06—Load-responsive characteristics
  • D10B2401/063—Load-responsive characteristics high strength
• • 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
  • D10B2401/10—Physical properties porous
• • 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
  • D10B2401/13—Physical properties anti-allergenic or anti-bacterial
• • 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
  • D10B2401/16—Physical properties antistatic; conductive
• • 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
  • D10B2501/00—Wearing apparel
  • D10B2501/04—Outerwear; Protective garments
• • 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
  • D10B2503/00—Domestic or personal
  • D10B2503/06—Bed linen

Definitions

• the present invention relates to the field of textiles and garments, and in particular to new combinations of fibres in production of yarns and fabric made from such yarns.
• HAI Healthcare-associated infections
• the present invention recognizes the above problems and aims to provide a fabric useful in production of textile articles, and in particular production of textile articles such as staff uniforms, labcoats, patients' clothing, towels, bedsheets, drapes etc., for use in a healthcare environment such as hospitals, long term care facilities, etc.
• textile articles are in particular useful in facilities where sensitive patients are treated, such as infants, in particular prematurely born infants, immunocompromised patients, and generally fragile patients such as patients in intensive care units and elderly patients, who can be seriously affected even by otherwise harmless infections.
• the fabric has antimicrobial properties, i.e. microorganisms contaminating the fabric do not grow or replicate to any significant degree thereby reducing the risk of transmitting the bacteria to other patients, staff members, visitors or other persons.
• the fabric is also wear- resistant, comfortable to wear, requires less energy to dry as compared to standard healthcare uniforms made of cotton and/or polyester, has a high tensile strength and good dimensional stability, and does not leak antimicrobial substances to the environment.
• the yarn may also incorporate at least one metal wire that can be used as a temperature sensor.
• the present invention relates to yarn consisting essentially of cotton or rayon fibres, hemp fibres, and fibres comprising porous particles, and a yarn consisting essentially of cotton or rayon fibres, hemp fibres, fibres comprising porous particles, and furthermore polyester and/or a metal wire.
• the invention relates to a thread comprising at least two yarns according to the invention.
• the invention relates to a fabric comprising at least one yarn according to the invention, and/or at least one thread according to the invention.
• the thread and/or fabric of the invention may further include at least one metal wire usable as a temperature sensor.
• the invention relates to the use of clothing made of a fabric according to the invention as healthcare staff uniforms.
• a "fibre” is a single filament of a material that can be natural (i.a. cotton, linen, wool, hemp) or artificial (i.a. polyester, metal, nylon, carbon fibre, glass).
• a “particle” is a body having substantial extension in three dimensions, i.e. having a breadth, width and height.
• the outer surface of a particle defines a volume of the particle.
• Porous particles have one or more pores extending from the surface into the interior of the particle.
• a particle may be generally spherical, cubic, or irregular.
• a "yarn” is a spun agglomeration of fibres.
• a "thread” comprises multiple yarns plied together.
• the present invention relates in a first aspect to a yarn comprising cotton or rayon fibres, hemp fibres, and fibres comprising porous particles and consisting essentially of these three types of fibre and optionally also polyester and/or a metal wire.
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of cotton fibres, hemp fibres, and fibres comprising porous particles.
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of rayon fibres, hemp fibres, and fibres comprising porous particles.
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of cotton or rayon fibres, hemp fibres, fibres comprising porous particles, and metal wire(s).
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of cotton fibres, polyester fibres, hemp fibres, and fibres comprising porous particles.
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of rayon fibres, polyester fibres, hemp fibres, and fibres comprising porous particles.
• the yarn consist at least to 95%, such as 96%, 97%, 98%, 99% or 100%, of a mix of cotton or rayon fibres, polyester fibres, hemp fibres, fibres comprising porous particles, and metal wire(s).
• Cotton fibres, rayon fibres, polyester and hemp fibres are well-known commodities in the art of yarn and textile manufacture and commercially available from a multitude of suppliers.
• Hemp (Cannabis sativa L.) is a fast-growing plant that quickly covers the ground and suppresses growth of weeds and some soil-borne pathogens, substantially reducing or even totally removing the need for herbicides, pesticides, fungicides and fertilizer and making it an environmentally friendly alternative to other fibre producing plants ("Natural Fibers, Biopolymers, and Biocomposites", Mohanty et al. (eds) CRC Press, Boca Raton, FL, USA, 2005). Hemp has natural antibacterial properties (Khan et al., BioResources 9(2), 3642- 3659). Hemp has been cultivated for a variety of uses, including textiles and clothing, for thousands of years.
• Rayon is a fibre manufactured from cellulose and can be manufactured in a number of varieties, types and grades, all of which may be included in the present invention. Rayon was first developed in the early 20 th century and used primarily for industrial purposes. Further development and refinement of the manufacturing technique have created a whole range of fibres with improved properties. Lyocell, sold under the trade name Tencel ® , was developed in the 1990s (D J Cole, ⁇ new cellulosic fibre - Tencel', Advances in Fibre Science, The Textile Institute, 1992). Viscose and lyocell are preferred embodiments of rayon in the present invention. Lyocell is available e.g. from Lenzing AG, Austria.
• the metal wire or metal wires that may optionally be included in the yarn, thread or fabric according to the invention is preferably useful as a sensor, such as a temperature sensor. It is known that the electrical resistance of a metal wire may vary with temperature and that this may be used in temperature sensors.
• Metal wires may be made from a single metal or alloys, including but not limited to FeCrAI, NiCr, NiFe, CuNi, and CuMn. Such metal alloy wires are available from under the trade name Kanthal ® from Sandik AB (Sandviken, Sweden). Metal wires may also be used in a thermocouple, two wires of dissimilar metals joined at one or two points, to measure temperature. Suitable metal wires are available e.g. under the trade name EXERATM from Sandvik AB (Sandviken, Sweden).
• the metal wire(s) are preferably coated with an insulating material, such as a polymer, prior to inclusion in the yarn or fabric.
• Fibres comprising porous particles as used in the present invention are also known in the art and can be produced in a multitude of ways. For instance, it is known in the art (i.a. from WO9842909) to introduce UV-blocking particles into a fabric. Methods for permanently binding particles such as zeolites to cellulosic and synthetic fibres are disclosed in
• the porous particles have the capacity to adsorb and/or absorb water.
• the pore structure of the particles increases the surface area of the textile, facilitating rapid evaporation of water.
• the porous particles have a breadth and/or width and/or height of 1- 1000 pm, such as 10-500 pm or 50-250 pm. In one embodiment, the breadth, width and height of the particles are within one or two orders of magnitude of each other. In one embodiment, the porous particles have a specific surface area of 500 m 2 /g, 750 m 2 /g, 1000 m 2 /g, or more.
• the porous particles include charcoal or activated carbon particles.
• Activated carbon is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.
• the porous particles include zeolites.
• Zeolites are aluminosilicate minerals composed mainly of aluminium, silicon, and oxygen. Zeolites are formed in nature in certain geological environments and can be obtained from e.g. some volcanic rocks.
• Zeolites may also be produced synthetically, with natural and synthetic zeolites being commercially available from a range of suppliers.
• the porous particles include silica gel, graphite, and/or aluminium oxide.
• the fibres comprising porous particles are polyester fibres, cotton fibres, rayon fibres, or nylon fibres.
• the yarn according to the invention consists essentially of 20% cotton, 55% hemp, and 25% fibres comprising porous particles.
• the yarn according to the invention consists essentially of 20% cotton, 35% hemp, 25% fibres comprising porous particles, and 20% polyester.
• the invention relates to a thread comprising at least two yarns according to the invention, and optionally at least one metal wire.
• the invention relates to a fabric comprising at least one yarn or thread according to the invention.
• the fabric according to the invention comprises a first yarn or thread according to the invention as warp and a second yarn or thread according to the invention as weft.
• the fabric has a warp and/or weft tensile strength of at least 700 N. This can be measured using the international standard ISO 13934-1.
• the fabric has a warp and/or weft tear strength of at least 30 N. This can be measured using the international standard ISO 13937-1.
• the fabric has a dimensional stability of ⁇ 1%. This can be measured using the international standard BS EN ISO 26330- 1A.
• the fabric has an improved drying time as compared to fabrics made of pure cotton, pure polyester, or polyester/cotton mixes. This can be measured using e.g. the AATCC standard 199-2013. In one embodiment, the fabric has a drying time of less than 25 minutes as measured using the AATCC standard 199-2013. . In one embodiment, the fabric has a drying time of less than 24, 23, or 22 minutes as measured using the AATCC standard 199-2013. In one embodiment, the fabric has a drying time of about 21 minutes as measured using the AATCC standard 199-2013.
• the invention relates to use of the fabric according to the invention in the manufacture of textile articles for use in a healthcare environment.
• Such articles include staff uniforms, laboratory coats, patients' clothing, towels, bedsheets, and drapes.
• Healthcare environments include hospitals, long-term care facilities, neonatal care units, and intensive care units.
• the yarns, threads, and fabrics according to the invention do not comprise any additional compound, agent, or material having antimicrobial activity. Such additional substances may leak from the products according to the invention and cause environmental harm.
• the yarns, threads and fabrics according to the invention do not comprise silver, copper, or zinc, in metallic form or in salt form.
• Yarns and threads were produced according to the invention and used as warp and weft in the production of a woven fabric according to the invention.
• the warp comprised 35% hemp, 20% polyester, 20% cotton, and 25% fibre comprising porous particles.
• the weft comprised 55% hemp, 20% cotton, and 25% fibre comprising porous particles.
• the properties of the fabric were tested for requirements under the Swedish standard for textiles for healthcare and social services facilities (SIS-CEN/TS 14237:2016), which in turn reference standards set by the International Organization for Standardization (ISO).
• ISO International Organization for Standardization
• Tensile strength was tested in accordance with ISO 13934-1 and was found to be ⁇ 700 N (warp) and ⁇ 425 N (weft), which is well above the requirements of 400 N set by Swedish standards.
• Tear strength was tested in accordance with ISO 13937-1 and was found to be >30 N (warp) and >20 N (weft).
• the antibacterial properties of the fabric was tested using the American Association of Textile Chemists and Colorists (AATCC) standard 100-2012 for assessment of antibacterial finishes on textile materials, using the test organism Staphylococcus aureus (ATCC 6538).
• a control sample consisting of 100% cotton was used.
• 1 mL of inoculum comprising ⁇ 1.1*10 5 cfu/mL S. aureus was applied to eight pieces of the fabric sample and the control sample, respectively. After 24 hours, the number of cfu per sample was counted and found to be on average ⁇ 100 for the fabric sample and 4.4*10 6 for the control sample.
• the fabric thus shows excellent antibacterial properties.
• the drying time reflects the energy required to dry the fabric and was measured using the AATCC standard 199-2013. Water absorbency times were measured using the AATCC standard 79. Two fabrics according to the invention were tested and showed water absorbency times of 6-8 seconds, a moisture retention of 96-99 % and an average drying time of 21 minutes (21.2 and 21.4, respectively).
• the fabric thus has an improved drying time as compared to fabrics made of pure cotton, pure polyester, or polyester/cotton blends.
• the comfortability of clothes made from the fabric can be assessed by providing users of the clothes with a survey of questions relating to the comfortability of the clothes relative existing clothing. The survey results show that clothes made from fabric according to the invention are as comfortable, more comfortable, or significantly more comfortable to wear as compared to existing clothing.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Botany (AREA)
• Woven Fabrics (AREA)
• Knitting Of Fabric (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=66995007

Family Applications (1)

Country Status (8)

Family Cites Families (17)

• 2018
  • 2018-12-19 US US16/772,214 patent/US20210087718A1/en active Pending
  • 2018-12-19 CA CA3085309A patent/CA3085309A1/en active Pending
  • 2018-12-19 WO PCT/SE2018/051341 patent/WO2019125295A1/en unknown
  • 2018-12-19 AU AU2018388244A patent/AU2018388244A1/en active Pending
  • 2018-12-19 EP EP18891826.2A patent/EP3728712A4/de active Pending
  • 2018-12-19 CN CN201880081801.1A patent/CN111492099A/zh active Pending
  • 2018-12-19 KR KR1020207020113A patent/KR20200110744A/ko not_active IP Right Cessation
• 2020
  • 2020-06-10 IL IL275267A patent/IL275267A/en unknown

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