CA3085309A1 - Novel yarn and fabric - Google Patents
Novel yarn and fabric Download PDFInfo
- Publication number
- CA3085309A1 CA3085309A1 CA3085309A CA3085309A CA3085309A1 CA 3085309 A1 CA3085309 A1 CA 3085309A1 CA 3085309 A CA3085309 A CA 3085309A CA 3085309 A CA3085309 A CA 3085309A CA 3085309 A1 CA3085309 A1 CA 3085309A1
- Authority
- CA
- Canada
- Prior art keywords
- fibres
- yarn
- fabric
- porous particles
- cotton
- 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.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 50
- 239000002245 particle Substances 0.000 claims abstract description 40
- 229920000742 Cotton Polymers 0.000 claims abstract description 27
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 24
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 23
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 23
- 235000009120 camo Nutrition 0.000 claims abstract description 23
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 23
- 239000011487 hemp Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000004753 textile Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 229920000728 polyester Polymers 0.000 claims description 19
- 229920000297 Rayon Polymers 0.000 claims description 18
- 239000002964 rayon Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 4
- 241000219146 Gossypium Species 0.000 description 21
- 239000000835 fiber Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 206010011409 Cross infection Diseases 0.000 description 5
- 229920000433 Lyocell Polymers 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 230000000845 anti-microbial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000013068 control sample Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- -1 silver ions Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008697 Cannabis sativa Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910003336 CuNi Inorganic materials 0.000 description 1
- 244000299507 Gossypium hirsutum Species 0.000 description 1
- 206010061598 Immunodeficiency Diseases 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241000295644 Staphylococcaceae Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011173 biocomposite Substances 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 244000000034 soilborne pathogen Species 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
Abstract
The present invention aims to provide a fabric useful in production of clothesand other textile articles, in particular for use in a healthcare environment such as hospitals, long term care facilities, etc. The invention relates to a yarn consisting essentially of cotton fibres, hemp fibres, and fibres comprising porous particles, and to threads and fabrics comprising such yarns, as well as to the use of such clothing as healthcare staff uniforms.The yarn and fabric may further include at least one metal wire usable as a temperature sensor.
Description
Novel yarn and fabric Field of the invention 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.
Background Healthcare-associated infections (HAI) are a major problem worldwide. It has been reported that about 6% of in-patients in Europe present with one or more healthcare associated infections during the hospital stay. In long-term care facilities, the prevalence of HAI has been estimated to 3.4% (European Centre for Disease Prevention and Control;
Technical report: Assessment of infection control, hospital hygiene capacity and training needs in the European Union, 2014). The cost for hospital acquired infections in Sweden is estimated to 6.5 *109 SEK per year.
The ability of bacteria to survive on various surfaces in a hospital is a key aspect in transfer of bacteria in a hospital setting and textiles are recognized as the second largest cause of HAI. It has been found that various Enterococci and Staphylococci survive for at least four days on hospital textiles made of pure cotton and for at least one day on cotton/polyester blends. In some instances, the bacteria survived for more than 90 days. (Neely and Maley, J Clin Microbiol, Feb 200, 724-726).
Hospital guidelines generally require that clothes used by healthcare staff are changed at least once per day and always after contamination. Washing and drying of staff uniforms thus require a significant amount of energy. Frequent washing and drying also wear at the fabric and reduces the lifetime of the clothes. Using stronger or thicker and thus more wear-resistant fabric often necessitates a trade-off between wear-resistance and comfortability of the clothes.
It has been suggested to treat textiles with silver ions (AO or nanosized silver colloids to achieve an antimicrobial effect (Lee et al. Journal of Materials Science (2003) 38: 2199).
However, such textiles may be prone to leaking silver ions into the environment, in particular in connection with washing, and thus have a significant detrimental effect on the environment.
It is also known in the art to provide temperature sensors in healthcare garments in order to monitor the usage cycle of the garment, and in particular that the garment is washed at an adequate wash temperature after being worn, see e.g. W02017/099658. Fabrics including metal wires usable as temperature sensors are known through e.g. W02005083164.
Background Healthcare-associated infections (HAI) are a major problem worldwide. It has been reported that about 6% of in-patients in Europe present with one or more healthcare associated infections during the hospital stay. In long-term care facilities, the prevalence of HAI has been estimated to 3.4% (European Centre for Disease Prevention and Control;
Technical report: Assessment of infection control, hospital hygiene capacity and training needs in the European Union, 2014). The cost for hospital acquired infections in Sweden is estimated to 6.5 *109 SEK per year.
The ability of bacteria to survive on various surfaces in a hospital is a key aspect in transfer of bacteria in a hospital setting and textiles are recognized as the second largest cause of HAI. It has been found that various Enterococci and Staphylococci survive for at least four days on hospital textiles made of pure cotton and for at least one day on cotton/polyester blends. In some instances, the bacteria survived for more than 90 days. (Neely and Maley, J Clin Microbiol, Feb 200, 724-726).
Hospital guidelines generally require that clothes used by healthcare staff are changed at least once per day and always after contamination. Washing and drying of staff uniforms thus require a significant amount of energy. Frequent washing and drying also wear at the fabric and reduces the lifetime of the clothes. Using stronger or thicker and thus more wear-resistant fabric often necessitates a trade-off between wear-resistance and comfortability of the clothes.
It has been suggested to treat textiles with silver ions (AO or nanosized silver colloids to achieve an antimicrobial effect (Lee et al. Journal of Materials Science (2003) 38: 2199).
However, such textiles may be prone to leaking silver ions into the environment, in particular in connection with washing, and thus have a significant detrimental effect on the environment.
It is also known in the art to provide temperature sensors in healthcare garments in order to monitor the usage cycle of the garment, and in particular that the garment is washed at an adequate wash temperature after being worn, see e.g. W02017/099658. Fabrics including metal wires usable as temperature sensors are known through e.g. W02005083164.
2 Summary of the invention 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. Such 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.
Thus, in a first aspect 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.
In a further aspect, the invention relates to a thread comprising at least two yarns according to the invention.
In a further aspect, 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.
In a further aspect, the invention relates to the use of clothing made of a fabric according to the invention as healthcare staff uniforms.
Preferred embodiments are disclosed in the dependent claims.
Definitions All words and terms used in the present specification are intended to have the meaning given to them by the person of ordinary skill in the art. For the sake of clarity, a few terms are however specifically defined below.
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.
Thus, in a first aspect 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.
In a further aspect, the invention relates to a thread comprising at least two yarns according to the invention.
In a further aspect, 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.
In a further aspect, the invention relates to the use of clothing made of a fabric according to the invention as healthcare staff uniforms.
Preferred embodiments are disclosed in the dependent claims.
Definitions All words and terms used in the present specification are intended to have the meaning given to them by the person of ordinary skill in the art. For the sake of clarity, a few terms are however specifically defined below.
3 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.
All percentages are given as percentages of weight, unless otherwise indicated.
Detailed description 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.
.. In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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).
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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.
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.
All percentages are given as percentages of weight, unless otherwise indicated.
Detailed description 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.
.. In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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).
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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.
4 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 20th 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, 'A 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 FeCrAl, 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 W09842909) to introduce UV-blocking particles into a fabric. Methods for permanently binding particles such as zeolites to cellulosic and synthetic fibres are disclosed in U55538783. Other methods are disclosed in W003/000979 and W003/105996.
Preferably, 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.
In one embodiment, the porous particles have a breadth and/or width and/or height of 1-1000 p.m, such as 10-500 p.m or 50-250 p.m. In one embodiment, the breadth, width and height of the particles are within one or two orders of magnitude of each other.
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 20th 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, 'A 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 FeCrAl, 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 W09842909) to introduce UV-blocking particles into a fabric. Methods for permanently binding particles such as zeolites to cellulosic and synthetic fibres are disclosed in U55538783. Other methods are disclosed in W003/000979 and W003/105996.
Preferably, 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.
In one embodiment, the porous particles have a breadth and/or width and/or height of 1-1000 p.m, such as 10-500 p.m or 50-250 p.m. In one embodiment, the breadth, width and height of the particles are within one or two orders of magnitude of each other.
5 In one embodiment, the porous particles have a specific surface area of 500 rriVg, 750 rriVg, 1000 rriVg, or more.
In an embodiment, the porous particles include charcoal or activated carbon particles.
Activated carbon is a form of carbon processed to have small, low-volume pores that 5 increase the surface area available for adsorption or chemical reactions.
In one embodiment, 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.
In other embodiments, the porous particles include silica gel, graphite, and/or aluminium oxide.
In one embodiment, the fibres comprising porous particles are polyester fibres, cotton fibres, rayon fibres, or nylon fibres.
In one embodiment, the yarn according to the invention consists essentially of 20% cotton, 55% hemp, and 25% fibres comprising porous particles.
In one embodiment, the yarn according to the invention consists essentially of 20% cotton, 35% hemp, 25% fibres comprising porous particles, and 20% polyester.
In a further aspect, the invention relates to a thread comprising at least two yarns according to the invention, and optionally at least one metal wire.
In a further aspect, the invention relates to a fabric comprising at least one yarn or thread according to the invention.
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, the fabric has a dimensional stability of 1%. This can be measured using the international standard BS EN ISO 26330-1A.
In one embodiment, 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
In an embodiment, the porous particles include charcoal or activated carbon particles.
Activated carbon is a form of carbon processed to have small, low-volume pores that 5 increase the surface area available for adsorption or chemical reactions.
In one embodiment, 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.
In other embodiments, the porous particles include silica gel, graphite, and/or aluminium oxide.
In one embodiment, the fibres comprising porous particles are polyester fibres, cotton fibres, rayon fibres, or nylon fibres.
In one embodiment, the yarn according to the invention consists essentially of 20% cotton, 55% hemp, and 25% fibres comprising porous particles.
In one embodiment, the yarn according to the invention consists essentially of 20% cotton, 35% hemp, 25% fibres comprising porous particles, and 20% polyester.
In a further aspect, the invention relates to a thread comprising at least two yarns according to the invention, and optionally at least one metal wire.
In a further aspect, the invention relates to a fabric comprising at least one yarn or thread according to the invention.
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, 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.
In one embodiment, the fabric has a dimensional stability of 1%. This can be measured using the international standard BS EN ISO 26330-1A.
In one embodiment, 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
6 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.
In a further aspect, 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.
In a preferred embodiment, 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. In particular, the yarns, threads and fabrics according to the invention do not comprise silver, copper, or zinc, in metallic form or in salt form.
The present invention is further illustrated by means of the following examples. The examples only serve to illustrate the invention and should not be construed as limiting the scope of the invention, which is that of the appended claims. All documents cited herein as prior art are expressly incorporated by reference herein in their entirety.
Example 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).
Dimensional change was tested in accordance with BS EN ISO 26330-1A and was found to be -0.5% to -1.0%, which is within the tolerance of 3.0% according to Swedish standards.
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).
In a further aspect, 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.
In a preferred embodiment, 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. In particular, the yarns, threads and fabrics according to the invention do not comprise silver, copper, or zinc, in metallic form or in salt form.
The present invention is further illustrated by means of the following examples. The examples only serve to illustrate the invention and should not be construed as limiting the scope of the invention, which is that of the appended claims. All documents cited herein as prior art are expressly incorporated by reference herein in their entirety.
Example 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).
Dimensional change was tested in accordance with BS EN ISO 26330-1A and was found to be -0.5% to -1.0%, which is within the tolerance of 3.0% according to Swedish standards.
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).
7 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*106 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*106 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.
control sample consisting of 100% cotton was used.
1 mL of inoculum comprising ¨1.1*106 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*106 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.
Claims (15)
1. A yarn consisting essentially of cotton or rayon fibres; hemp fibres; and fibres comprising porous particles.
2. A yarn consisting essentially of cotton or rayon fibres; hemp fibres;
fibres comprising porous particles; and polyester and/or at least one metal wire.
fibres comprising porous particles; and polyester and/or at least one metal wire.
3. The yarn according to claim 1 or 2, wherein the fibres comprising porous particles are made from polyester, cotton, rayon, or nylon.
4. The yarn according to any one of claims 1-3, wherein the porous particles are capable of adsorbing water.
5. The yarn according to any one of claims 1-4, wherein the porous particles are selected from the group consisting of charcoal, activated carbon, zeolites, silica gel, graphite, and aluminium oxide.
6. The yarn according to any one of claims 1, 3-5, consisting essentially of 20% cotton or rayon, 55% hemp, and 25% fibres comprising porous particles.
7. The yarn according to any one of claims 2-5, consisting essentially of 20%
cotton or rayon, 35% hemp, 25% fibres comprising porous particles, and 20% polyester.
cotton or rayon, 35% hemp, 25% fibres comprising porous particles, and 20% polyester.
8. A thread comprising at least two yarns according to any one of claims 1-7, and optionally at least one metal wire.
9. A fabric comprising at least one yarn according to any one of claims 1-7, and/or at least one thread according to claim 8.
10. The fabric according to claim 8, comprising a first yarn or thread according to any one of claims 1-8 as warp and a second yarn or thread according to any one of claims 1-8 as weft.
11. The fabric according to any one of claims 9 or 10, wherein the warp and/or weft tensile strength is at least 700 N.
12. The fabric according to any one of claims 9-11 wherein the warp and/or weft tear strength is at least 30 N.
13. The fabric according to any one of claims 9-12, having a dimensional stability of 1%.
14. The fabric according to any one of claims 9-13, having a drying time of less than 25 minutes as measured using the AATCC standard 199-2013.
15. Use of a fabric according to any one of claims 9-14 in the manufacture of textile articles for use in a healthcare environment.
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US4342811A (en) * | 1979-12-28 | 1982-08-03 | Albany International Corp. | Open-celled microporous sorbent-loaded textile fibers and films and methods of fabricating same |
CH679597A5 (en) * | 1988-08-31 | 1992-03-13 | Rohner Jacob Ag | |
US5248548A (en) * | 1991-11-22 | 1993-09-28 | Memtec America Corporation | Stainless steel yarn and protective garments |
US5538783A (en) | 1992-08-17 | 1996-07-23 | Hansen; Michael R. | Non-polymeric organic binders for binding particles to fibers |
US6037280A (en) | 1997-03-21 | 2000-03-14 | Koala Konnection | Ultraviolet ray (UV) blocking textile containing particles |
US6381482B1 (en) * | 1998-05-13 | 2002-04-30 | Georgia Tech Research Corp. | Fabric or garment with integrated flexible information infrastructure |
WO2003000979A2 (en) | 2001-06-26 | 2003-01-03 | Traptek Llc | A treated yarn and methods for making same |
US7247374B2 (en) | 2002-06-12 | 2007-07-24 | Traptek Llc | Encapsulated active particles and methods for making and using the same |
DE20214118U1 (en) * | 2002-09-12 | 2002-11-14 | Theodolf Fritsche Gmbh & Co | Protective clothing |
GB0404419D0 (en) | 2004-02-27 | 2004-03-31 | Intelligent Textiles Ltd | Electrical components and circuits constructed as textiles |
KR100806033B1 (en) * | 2007-04-18 | 2008-02-26 | 김주환 | Sanitary cloth made of hemp |
US20120117708A1 (en) * | 2010-11-11 | 2012-05-17 | Vincent Trapani | Antimicrobial Medical Garment |
CN102168332A (en) * | 2010-11-24 | 2011-08-31 | 常熟市华博毛纺织有限公司 | Novel antibacterial yarn |
TW201404961A (en) * | 2012-07-23 | 2014-02-01 | Kou-Bin Cheng | Thermal conservative and air permeable film, complex film, yarns and manufacturing method thereof |
US20160128323A1 (en) * | 2013-05-30 | 2016-05-12 | Cupron Inc. | Antimicrobial and Antiviral Polymeric Materials |
SE540369C2 (en) | 2015-12-11 | 2018-08-14 | Healthtextiles I Sverige Ab | A method and a system for monitoring healthcare garments |
CN107022823A (en) * | 2017-03-24 | 2017-08-08 | 东华大学 | A kind of machine-knitted structure flexibility temperature sensor of integrated temperature sensitive fiber |
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