EP3977883A1 - Method of manufacturing a glove and a glove - Google Patents
Method of manufacturing a glove and a glove Download PDFInfo
- Publication number
- EP3977883A1 EP3977883A1 EP20199187.4A EP20199187A EP3977883A1 EP 3977883 A1 EP3977883 A1 EP 3977883A1 EP 20199187 A EP20199187 A EP 20199187A EP 3977883 A1 EP3977883 A1 EP 3977883A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glove
- top layer
- nanometric
- photocatalytic properties
- sized material
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 44
- 230000001699 photocatalysis Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000002105 nanoparticle Substances 0.000 claims description 37
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004753 textile Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 239000010985 leather Substances 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229920003051 synthetic elastomer Polymers 0.000 claims description 5
- 239000005061 synthetic rubber Substances 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000002940 repellent Effects 0.000 claims description 4
- 239000005871 repellent Substances 0.000 claims description 4
- 239000002759 woven fabric Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004599 antimicrobial Substances 0.000 abstract description 3
- 244000052769 pathogen Species 0.000 description 13
- 238000001035 drying Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
- 238000002791 soaking Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 241000700605 Viruses Species 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000000415 inactivating effect Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000645 desinfectant Substances 0.000 description 3
- 238000009940 knitting Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000013032 photocatalytic reaction Methods 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 241000197306 H1N1 subtype Species 0.000 description 1
- 208000025370 Middle East respiratory syndrome Diseases 0.000 description 1
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 241000007181 unidentified human coronavirus Species 0.000 description 1
- 241000712461 unidentified influenza virus Species 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
Definitions
- the invention is related to a method of manufacturing a glove, which glove comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand.
- the invention is further related to a glove manufactured by the method.
- Pathogens such as bacteria and viruses cause diseases, which may be difficult to cure and require a long time to recover. Some diseases may even fatal.
- On way to reduce the risk of having a contamination of harmful pathogens is to wear gloves. By wearing gloves skin contacts with possibly contaminated surfaces can be reduced. Gloves are widely used in occupations and workplaces, where there is an increased risk of being infected by harmful pathogens. However, when the gloves are removed from hand the risk of coming into contact with the pathogens remaining on the outer surface or absorbed into the outer layer of the glove is high. The risk of being infected is especially high when removing and putting on gloves made for permanent or long-lasting wearing, such as working gloves and gloves meant for outdoor use. Thus, gloves are effective in avoiding contamination only, if the outer surface is free from pathogens and toxic compounds. Gloves lose their protective effect easily in everyday use, where occasional undressing of the gloves is necessary.
- An object of the invention is to provide a method for manufacturing a glove and a glove, with which drawbacks relating to the prior are can be reduced.
- the present invention relates to a method of manufacturing a glove, which glove comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand.
- Said method comprises a step of covering the outer surface at least partly with nanometric-sized material having photocatalytic properties.
- the photocatalytic properties of the material means, that the nanometric-sized material act as light- activated antimicrobial agent.
- said method further comprises a step of covering also the inner surface at least partly with nanometric-sized material having photocatalytic properties.
- the outer surface or inner surface is at least partly covered with material comprising nanoparticles made of semiconductive material.
- the nanoparticles comprise titanium dioxide Ti0 2 , iron oxide Fe 2 O 3 , tungsten trioxide WO 3 , zinc oxide ZnO or silicon carbide SiC.
- solution containing nanometric-sized material having photocatalytic properties is sprayed on the outer surface and the sprayed solution is allowed to dry to a coating at least partly covering the outer surface.
- the top layer is soaked in a solution containing nanometric-sized material having photocatalytic properties to impregnate the top layer with the solution and the soaked top layer is allowed to dry.
- the top layer is manufactured of fabrics or of threads which fabrics or threads are at least partly covered with nanometric-sized material having photocatalytic properties before the top layer is manufactured.
- the outer surface is exposed to light radiation to activate the photocatalytic properties of the nanometric-sized material.
- the exposure to light radiation is made during the drying phase of the glove.
- a glove according to the invention comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand.
- Said outer surface is at least partially covered with nanometric-sized material having photocatalytic properties.
- the inner surface may be at least partly covered with nanometric-sized material having photocatalytic properties.
- the outer surface or inner surface is at least partly covered with material comprising nanoparticles made of semiconductive material.
- the nanoparticles comprise titanium dioxide Ti0 2 , iron oxide Fe 2 O 3 , tungsten trioxide WO 3 , zinc oxide ZnO or silicon carbide SiC.
- the top layer is made of genuine leather.
- the top layer is made of knitted or woven fabric or textile.
- the top layer is made of natural or synthetic rubber, plastic, water repellent or waterproof fabric or polyurethane-coated textile.
- An advantage of the invention is, that it enhances the protective effect of gloves by reducing the risk of being infected when gloves are removed and reused.
- Another advantage of the invention is, that it reduces the need and use of disposable gloves, which saves material and environment.
- a further advantage of the invention is, that the achieved photocatalytic antimicrobial property is long-lasting and durable.
- FIG 1a an embodiment of the glove according to the invention is shown oblique from above.
- fig. 1b a cross-section the glove of fig. 1a along line A-A is depicted. In the following both figures are explained simultaneously.
- the glove is a known handheld garment comprising a top layer 10, which has a shape of a hand.
- the top layer can be made by knitting or by sewing pieces of fabrics or leather together to a desired shape. Further, it is possible to make the top layer from castable material, such as natural or synthetic rubber or plastic by using a mould having a shape of a hand.
- the top layer 10 has an outer surface 12 and an inner surface 14 ( fig. 1b ).
- the inner surface is defined to be the surface, which is configured to be in skin contact, when the glove is worn in hand.
- the outer surface is the surface of the top layer, which remains visible, when a hand is inserted inside the glove.
- the outer surface is at least partly covered with nanometric-sized material having photocatalytic properties.
- the photocatalytic properties of the material mean, that the nanometric-sized material acts as light-activated antimicrobial agent, which inactivate pathogen and infectants remaining on the outer surface of the glove.
- the nanometric-sized material particles i.e. nanoparticles, adhere to outer surface forming a coating at least partly covering the outer surface.
- Inactivated pathogens and infectants may include bacteria, viruses and/or fungus. Inactivation here means making the pathogens harmless either by killing them or by significantly reducing their ability to reproduce on animate or inanimate surface and/or infect a human being.
- the photocatalytic coating can be made by immersing, i.e. dipping the substantially ready-made glove into a solution containing a solvent and nanoparticles made of semiconductive material.
- the nanoparticles comprise titanium dioxide Ti0 2 , iron oxide Fe 2 O 3 , tungsten trioxide WO 3 , zinc oxide ZnO or silicon carbide SiC.
- the solvent is a water/ethanol solution where the proportion of ethanol may be 50-99 % of the total volume of the solution.
- the concentration of the nanoparticles in the solution may be 10-20 g /I.
- the soaked glove is then lifted out of the solution and allowed to dry completely. In room temperature a drying period of 24 hours is usually sufficient. The drying period can be significantly reduced by performing the drying in an elevated temperature in an oven. In 110 °C temperature the drying period may few hours.
- the top layer is knitted or woven fabric or textile or other fibrous, water permeable material, the particles form a covering around the fibres of the top layer. Thus, the whole top layer material becomes covered with nanoparticles.
- the top layer is made of substantially waterproof material, such as genuine leather, natural or synthetic rubber, plastic, water repellent or waterproof fabric or PU-coated textile, a coating in a form of thin molecular net containing nanoparticles is formed and adhered to the inner and outer surfaces of the glove.
- the photocatalytic coating is made by spraying a solution containing nanoparticles made of semiconductive material in a water/ethanol solvent on the outer surface 12 of the glove.
- the sprayed solution is allowed to dry to a coating on the outer surface.
- the nanoparticles in the sprayed solution comprise titanium dioxide Ti0 2 , iron oxide Fe 2 O 3 , tungsten trioxide WO 3 , zinc oxide ZnO or silicon carbine SiC.
- a single spray treatment may comprise a number of consecutive sprayings and a drying period between each spraying.
- the number of sprayings in a single spray treatment may be 2 to 5, preferably 3.
- the drying period between each spraying may be 10 to 30 minutes.
- the gloves may be placed into an oven or to another space having an elevated temperature.
- the outer surface is exposed to light radiation to activate the photocatalytic properties of the nanoparticles.
- the exposure to light radiation is done during the drying phase of the gloves.
- the length of the drying phase can be adjusted by regulating the intensity of the light radiation. The higher is the intensity of the light radiation, the shorter is the drying phase.
- the nanoparticles absorb energy form the radiated light creating electron-hole pairs in the nanoparticle.
- These activated nanoparticles can form redox reactions with the pathogens, such as bacteria, viruses and/or fungus present of the surface of the glove.
- the wavelength of the light used in the radiation can be chosen according to the used nanoparticle material.
- the light used in the radiation may be ultraviolet light or visible light.
- the light exposure can be made with high-power lamps. Once activated the photocatalytic property of the nanoparticle coating remains on the surface of the glove.
- the nanoparticles When the gloves are used in illuminated environment, the nanoparticles constantly make photocatalytic reactions with pathogens adhered to the outer surface of the glove thereby inactivating the pathogens.
- the nanoparticles can make photocatalytic inactivating reactions with numerous bacteria and viruses including SARS, MERS, influenza virus, H1N1 and human coronavirus.
- the amount of illumination needed for starting the photocatalytic reaction when the gloves are used is much lower than in the activation phase. As a rule of thumb one can say, that if there is enough light for reading, there is enough light for the photocatalytic reaction also.
- the illumination can be natural illumination, i.e. sunlight or artificial illumination created by lamps.
- the photocatalytic, pathogens inactivating property in the inner surface has only limited use.
- this photocatalytic property of the inner surface can be utilized to disinfect the inner surface when deeded by turning the top layer inside-out and placing the turned gloves in to an illuminated space for a period of time. This disinfection can be done for example during night, when the gloves are not used.
- FIG 2a a second embodiment of the glove according to the invention is seen oblique from above.
- fig. 2b a cross-section the glove of fig. 2a along line B-B is depicted. In the following both figures are explained simultaneously.
- the embodiment of the glove depicted in figs. 2a and 2b differs from the embodiment of figs. 1a and 1b in that it further comprises a lining 18 inside the top layer 10.
- the lining and the top layer have a substantially similar shape, but the lining is slightly smaller, which makes possible to insert the lining inside the top layer.
- the inner surface of the glove which is defined to be the surface, which is configured to be in skin contact, when the glove is worn in hand, is now the inner surface 14a of the lining 18.
- the lining is usually made of soft knitted or woven fabric or textile.
- the lining is attached to the top layer 10 by joint knitting 16 locating in the edge of the wrist surrounding area of the glove.
- a coating containing nanoparticles having photocatalytic properties on the outer surface of the glove shown in figs 2a and 2b can be made in a similar way as to the gloves shown in figs. 1a and 1b , i.e. by immersing the substantially ready-made glove into a solution containing nanoparticles in a water/ethanol solvent and or by spraying said solution on the outer surface 12 of the glove.
- the top layer becomes impregnated as explained above.
- top layer is made of substantially waterproof material, such as leather, natural or synthetic rubber, plastic, water repellent or waterproof fabric or PU-coated textile, a thin coating containing pathogen inactivating compounds is formed and adhered to the inner and outer surfaces of the top layer.
- This soaking treatment is a possible treatment method for gloves, if the material of the outer surface of the glove can withstand soaking and wetting.
- the outer surface of the glove cannot withstand soaking or wetting without harmful side-effects, such as colour chances, it is advisable to create the nanoparticle coating by spraying solution containing nanoparticles on the outer surface 12 of the glove.
- This method is especially suitable for gloves, in which the top layer is made of genuine or synthetic leather.
- the lining of the glove can be left without nanoparticle coating.
- the whole glove is soaked in the solution also water permeable lining material becomes impregnated with the solution and on the inner surface 14a of the lining a coating containing nanoparticles is formed.
- the photocatalytic property of the inner surface of the lining can be utilized to disinfect the inner surface when deeded by pulling the lining out of the top layer, turning the top layer inside-out and exposing the turned lining to a light radiation for a period of time.
- soaking it is also possible to leave the lining 18 without the coating containing nanoparticles also in the embodiment of the method using soaking. This can be done by pulling the lining out of the top layer, soaking only the top layer in the solution containing nanoparticles and returning the lining back inside the top layer, after the top layer is dry.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Gloves (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Description
- The invention is related to a method of manufacturing a glove, which glove comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand. The invention is further related to a glove manufactured by the method.
- Pathogens, such as bacteria and viruses cause diseases, which may be difficult to cure and require a long time to recover. Some diseases may even fatal. On way to reduce the risk of having a contamination of harmful pathogens is to wear gloves. By wearing gloves skin contacts with possibly contaminated surfaces can be reduced. Gloves are widely used in occupations and workplaces, where there is an increased risk of being infected by harmful pathogens. However, when the gloves are removed from hand the risk of coming into contact with the pathogens remaining on the outer surface or absorbed into the outer layer of the glove is high. The risk of being infected is especially high when removing and putting on gloves made for permanent or long-lasting wearing, such as working gloves and gloves meant for outdoor use. Thus, gloves are effective in avoiding contamination only, if the outer surface is free from pathogens and toxic compounds. Gloves lose their protective effect easily in everyday use, where occasional undressing of the gloves is necessary.
- It is known to treat the outer surface of gloves with disinfectant agents. However, some known disinfectants contain toxic chemicals or substances, such as silver, which are hazardous to health. Further, many disinfectants loosen from the glove during use and washing of the glove, whereby the disinfecting properties of the glove weaken.
- An object of the invention is to provide a method for manufacturing a glove and a glove, with which drawbacks relating to the prior are can be reduced.
- The object of the invention is achieved with a method and a glove which are characterized in what is disclosed in the independent patent claims. Some preferred embodiments of the invention are disclosed in the dependent claims.
- The present invention relates to a method of manufacturing a glove, which glove comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand. Said method comprises a step of covering the outer surface at least partly with nanometric-sized material having photocatalytic properties. The photocatalytic properties of the material means, that the nanometric-sized material act as light- activated antimicrobial agent. Preferably, said method further comprises a step of covering also the inner surface at least partly with nanometric-sized material having photocatalytic properties.
- In a preferred embodiment of the method according to the invention the outer surface or inner surface is at least partly covered with material comprising nanoparticles made of semiconductive material. Preferably, the nanoparticles comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbide SiC.
- In a second preferred embodiment of the method according to the invention solution containing nanometric-sized material having photocatalytic properties is sprayed on the outer surface and the sprayed solution is allowed to dry to a coating at least partly covering the outer surface.
- In a third preferred embodiment of the method according to the invention the top layer is soaked in a solution containing nanometric-sized material having photocatalytic properties to impregnate the top layer with the solution and the soaked top layer is allowed to dry.
- In yet another preferred embodiment of the method according to the invention the top layer is manufactured of fabrics or of threads which fabrics or threads are at least partly covered with nanometric-sized material having photocatalytic properties before the top layer is manufactured.
- In yet another preferred embodiment of the method according to the invention the outer surface is exposed to light radiation to activate the photocatalytic properties of the nanometric-sized material. Preferably the exposure to light radiation is made during the drying phase of the glove.
- A glove according to the invention comprises a top layer, an outer surface and an inner surface, which inner surface is configured to be in skin contact when the glove is worn in hand. Said outer surface is at least partially covered with nanometric-sized material having photocatalytic properties. Also, the inner surface may be at least partly covered with nanometric-sized material having photocatalytic properties.
- In a preferred embodiment of the glove according to the invention the outer surface or inner surface is at least partly covered with material comprising nanoparticles made of semiconductive material. Preferably, the nanoparticles comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbide SiC.
- In a second preferred embodiment of the glove according to the invention the top layer is made of genuine leather.
- In yet another preferred embodiment of the glove according to the invention the top layer is made of knitted or woven fabric or textile.
- In yet another preferred embodiment of the glove according to the invention the top layer is made of natural or synthetic rubber, plastic, water repellent or waterproof fabric or polyurethane-coated textile.
- An advantage of the invention is, that it enhances the protective effect of gloves by reducing the risk of being infected when gloves are removed and reused.
- Another advantage of the invention is, that it reduces the need and use of disposable gloves, which saves material and environment.
- A further advantage of the invention is, that the achieved photocatalytic antimicrobial property is long-lasting and durable.
- In the following the invention will be described in detail, by way of examples, with reference to the accompanying drawings in which,
- Fig. 1a
- shows one preferred embodiment of a glove according to the invention seen obliquely from above,
- Fig. 1b
- shows a cross-section of the embodiment of the glove depicted in
fig. 1a , - Fig. 2a
- shows another preferred embodiment of a glove according to the invention seen obliquely from above and
- Fig. 2b
- shows a cross-section of the embodiment of the glove depicted in
fig. 2a . - In
figure 1a an embodiment of the glove according to the invention is shown oblique from above. Infig. 1b a cross-section the glove offig. 1a along line A-A is depicted. In the following both figures are explained simultaneously. - The glove is a known handheld garment comprising a
top layer 10, which has a shape of a hand. The top layer can be made by knitting or by sewing pieces of fabrics or leather together to a desired shape. Further, it is possible to make the top layer from castable material, such as natural or synthetic rubber or plastic by using a mould having a shape of a hand. Thetop layer 10 has anouter surface 12 and an inner surface 14 (fig. 1b ). Here the inner surface is defined to be the surface, which is configured to be in skin contact, when the glove is worn in hand. The outer surface is the surface of the top layer, which remains visible, when a hand is inserted inside the glove. - In the method according to the invention the outer surface is at least partly covered with nanometric-sized material having photocatalytic properties. The photocatalytic properties of the material mean, that the nanometric-sized material acts as light-activated antimicrobial agent, which inactivate pathogen and infectants remaining on the outer surface of the glove. The nanometric-sized material particles, i.e. nanoparticles, adhere to outer surface forming a coating at least partly covering the outer surface. Inactivated pathogens and infectants may include bacteria, viruses and/or fungus. Inactivation here means making the pathogens harmless either by killing them or by significantly reducing their ability to reproduce on animate or inanimate surface and/or infect a human being.
- The photocatalytic coating can be made by immersing, i.e. dipping the substantially ready-made glove into a solution containing a solvent and nanoparticles made of semiconductive material. Preferably, the nanoparticles comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbide SiC. Preferably the solvent is a water/ethanol solution where the proportion of ethanol may be 50-99 % of the total volume of the solution. The concentration of the nanoparticles in the solution may be 10-20 g /I. The soaked glove is then lifted out of the solution and allowed to dry completely. In room temperature a drying period of 24 hours is usually sufficient. The drying period can be significantly reduced by performing the drying in an elevated temperature in an oven. In 110 °C temperature the drying period may few hours.
- When the glove dries the solid particles of the solution. i.e. the nanoparticles form a network and adhere on the inner and outer surface of the top layer. If the top layer is knitted or woven fabric or textile or other fibrous, water permeable material, the particles form a covering around the fibres of the top layer. Thus, the whole top layer material becomes covered with nanoparticles. If the top layer is made of substantially waterproof material, such as genuine leather, natural or synthetic rubber, plastic, water repellent or waterproof fabric or PU-coated textile, a coating in a form of thin molecular net containing nanoparticles is formed and adhered to the inner and outer surfaces of the glove.
- In a second preferred embodiment of the invention the photocatalytic coating is made by spraying a solution containing nanoparticles made of semiconductive material in a water/ethanol solvent on the
outer surface 12 of the glove. The sprayed solution is allowed to dry to a coating on the outer surface. Preferably, the nanoparticles in the sprayed solution comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbine SiC. A single spray treatment may comprise a number of consecutive sprayings and a drying period between each spraying. The number of sprayings in a single spray treatment may be 2 to 5, preferably 3. The drying period between each spraying may be 10 to 30 minutes. During drying periods between consecutive spraying the gloves may be placed into an oven or to another space having an elevated temperature. - After the coating containing photoactive nanoparticles is formed on to the outer surface of the glove, the outer surface is exposed to light radiation to activate the photocatalytic properties of the nanoparticles. Preferably the exposure to light radiation is done during the drying phase of the gloves. The length of the drying phase can be adjusted by regulating the intensity of the light radiation. The higher is the intensity of the light radiation, the shorter is the drying phase.
- During light exposure the nanoparticles absorb energy form the radiated light creating electron-hole pairs in the nanoparticle. These activated nanoparticles can form redox reactions with the pathogens, such as bacteria, viruses and/or fungus present of the surface of the glove. The wavelength of the light used in the radiation can be chosen according to the used nanoparticle material. The light used in the radiation may be ultraviolet light or visible light. When exposed to light radiation having sufficient intensity for a sufficient length of time in the manufacturing phase of the glove the photoactive properties of the nanoparticles are activated. The light exposure can be made with high-power lamps. Once activated the photocatalytic property of the nanoparticle coating remains on the surface of the glove.
- When the gloves are used in illuminated environment, the nanoparticles constantly make photocatalytic reactions with pathogens adhered to the outer surface of the glove thereby inactivating the pathogens. The nanoparticles can make photocatalytic inactivating reactions with numerous bacteria and viruses including SARS, MERS, influenza virus, H1N1 and human coronavirus. The amount of illumination needed for starting the photocatalytic reaction when the gloves are used is much lower than in the activation phase. As a rule of thumb one can say, that if there is enough light for reading, there is enough light for the photocatalytic reaction also. The illumination can be natural illumination, i.e. sunlight or artificial illumination created by lamps.
- In the aforementioned embodiment of method using soaking the whole
top layer 10 of the glove becomes impregnated with the solution and a coating containing photoactive nanoparticles is formed also on theinner surface 14 of thetop layer 10. Since the inner surface of the glove is not exposed to the light radiation during normal use of the glove, the photocatalytic, pathogens inactivating property in the inner surface has only limited use. However, this photocatalytic property of the inner surface can be utilized to disinfect the inner surface when deeded by turning the top layer inside-out and placing the turned gloves in to an illuminated space for a period of time. This disinfection can be done for example during night, when the gloves are not used. - In
figure 2a a second embodiment of the glove according to the invention is seen oblique from above. Infig. 2b a cross-section the glove offig. 2a along line B-B is depicted. In the following both figures are explained simultaneously. - The embodiment of the glove depicted in
figs. 2a and 2b differs from the embodiment offigs. 1a and 1b in that it further comprises a lining 18 inside the top layer 10.The lining and the top layer have a substantially similar shape, but the lining is slightly smaller, which makes possible to insert the lining inside the top layer. In the embodiment offigs 2a and 2b the inner surface of the glove, which is defined to be the surface, which is configured to be in skin contact, when the glove is worn in hand, is now theinner surface 14a of thelining 18. One purpose of the lining is to increase the comfort of the use of the glove. Therefore, the lining is usually made of soft knitted or woven fabric or textile. The lining is attached to thetop layer 10 byjoint knitting 16 locating in the edge of the wrist surrounding area of the glove. - The formation of a coating containing nanoparticles having photocatalytic properties on the outer surface of the glove shown in
figs 2a and 2b can be made in a similar way as to the gloves shown infigs. 1a and 1b , i.e. by immersing the substantially ready-made glove into a solution containing nanoparticles in a water/ethanol solvent and or by spraying said solution on theouter surface 12 of the glove. In the embodiment where the glove is immersed into the solution the top layer becomes impregnated as explained above. If the top layer is made of substantially waterproof material, such as leather, natural or synthetic rubber, plastic, water repellent or waterproof fabric or PU-coated textile, a thin coating containing pathogen inactivating compounds is formed and adhered to the inner and outer surfaces of the top layer. This soaking treatment is a possible treatment method for gloves, if the material of the outer surface of the glove can withstand soaking and wetting. - If the outer surface of the glove cannot withstand soaking or wetting without harmful side-effects, such as colour chances, it is advisable to create the nanoparticle coating by spraying solution containing nanoparticles on the
outer surface 12 of the glove. This method is especially suitable for gloves, in which the top layer is made of genuine or synthetic leather. In gloves, where the nanoparticles are sprayed on the outer surface of the glove, the lining of the glove can be left without nanoparticle coating. - However, in the embodiment, where the whole glove is soaked in the solution also water permeable lining material becomes impregnated with the solution and on the
inner surface 14a of the lining a coating containing nanoparticles is formed. The photocatalytic property of the inner surface of the lining can be utilized to disinfect the inner surface when deeded by pulling the lining out of the top layer, turning the top layer inside-out and exposing the turned lining to a light radiation for a period of time. - It is also possible to leave the lining 18 without the coating containing nanoparticles also in the embodiment of the method using soaking. This can be done by pulling the lining out of the top layer, soaking only the top layer in the solution containing nanoparticles and returning the lining back inside the top layer, after the top layer is dry.
- Above, some preferred embodiments of the invention are explained. The invention is not limited to the solutions described above, but the inventive idea can be applied in numerous ways within the scope of the claims.
-
- 10
- top layer
- 12
- outer surface
- 14
- inner surface
- 14a
- inner surface of the lining
- 16
- joint knitting
- 18
- lining
Claims (15)
- A method of manufacturing a glove, which glove comprises a top layer (10), an outer surface (12) and an inner surface (14), which inner surface is configured to be in skin contact when the glove is worn in hand, characterized in that, said method comprises a step of covering the outer surface (12) at least partly with nanometric-sized material having photocatalytic properties.
- A method according to claim 1, characterized in that said method further comprises a step of covering the inner surface (14) at least partly with nanometric-sized material having photocatalytic properties.
- A method according to claim 1 or 2, characterized in that the outer surface (12) or the inner surface (14) is at least partly covered with material comprising nanoparticles made of semiconductive material.
- A method according to claim 3, characterized in that the nanoparticles comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbide SiC.
- A method according to any of the claims 1 to 4, characterized in that a solution containing nanometric-sized material having photocatalytic properties is sprayed on the outer surface (12) and the sprayed solution is allowed to dry to a coating at least partly covering the outer surface (12).
- A method according to claim any of the claims 1 to 4, characterized in that the top layer (10) is soaked in a solution containing nanometric-sized material having photocatalytic properties to impregnate the top layer (10) with the solution and soaked top layer (10) is allowed to dry.
- A method according to claim1 to 4, characterized in that the top layer (10) is manufactured of fabrics or of threads which fabrics or threads are at least partly covered with nanometric-sized material having photocatalytic properties before the top layer (10) is manufactured.
- A method according to any of the claims 1 to 7, characterized in that the outer surface (12) is exposed to light radiation to activate the photocatalytic properties of the nanometric-sized material.
- A glove comprising a top layer (10), an outer surface (12) and an inner surface (14), which inner surface (14) is configured to be in skin contact when the glove is worn in hand, characterized in that said outer surface (12) is at least partially covered with nanometric-sized material having photocatalytic properties.
- A glove according to claim 9, characterized in that, the inner surface (14) is at least partly covered with nanometric-sized material having photocatalytic properties.
- A glove according to claim 9 or 10, characterized in that, the outer surface (12) or inner surface (14) is at least partly covered with material comprising nanoparticles made of semiconductive material.
- A glove according to any of the claims 9 to 11, characterized in that, the nanoparticles comprise titanium dioxide Ti02, iron oxide Fe2O3, tungsten trioxide WO3, zinc oxide ZnO or silicon carbide SiC.
- The glove according to any of the claims 9 to 12, characterized in that the top layer (10) is made of genuine leather.
- The glove according to any of the claims 9 to 12, characterized in that the top layer (10) is made of knitted or woven fabric or textile.
- The glove according to any of the claims 9 to 12, characterized in that the top layer (10) is made of natural or synthetic rubber, plastic, water repellent or waterproof fabric or polyurethane-coated textile.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FIEP20199187.4T FI3977883T3 (en) | 2020-09-30 | 2020-09-30 | Method of manufacturing a glove and a glove |
EP20199187.4A EP3977883B1 (en) | 2020-09-30 | 2020-09-30 | Method of manufacturing a glove and a glove |
PCT/FI2021/050578 WO2022069791A1 (en) | 2020-09-30 | 2021-08-27 | Method of manufacturing a glove and a glove |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20199187.4A EP3977883B1 (en) | 2020-09-30 | 2020-09-30 | Method of manufacturing a glove and a glove |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3977883A1 true EP3977883A1 (en) | 2022-04-06 |
EP3977883B1 EP3977883B1 (en) | 2022-12-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20199187.4A Active EP3977883B1 (en) | 2020-09-30 | 2020-09-30 | Method of manufacturing a glove and a glove |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3977883B1 (en) |
FI (1) | FI3977883T3 (en) |
WO (1) | WO2022069791A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003056951A2 (en) * | 2002-01-08 | 2003-07-17 | Bernard Techologies, Inc. | Antimicrobial body covering articles |
US20110245576A1 (en) * | 2008-03-06 | 2011-10-06 | Keller-Spitzer Valerie | Textile fibers having photocatalytic properties for degrading chemical or biological agents, method for preparing same and use thereof in photocatalysis |
US20120070647A1 (en) * | 2010-09-16 | 2012-03-22 | O'Neill LLC | Thin-wall polymer coated articles and gloves and a method therefor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101111158B1 (en) * | 2009-01-16 | 2012-02-16 | 김영배 | Winter leather gloves |
-
2020
- 2020-09-30 EP EP20199187.4A patent/EP3977883B1/en active Active
- 2020-09-30 FI FIEP20199187.4T patent/FI3977883T3/en active
-
2021
- 2021-08-27 WO PCT/FI2021/050578 patent/WO2022069791A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003056951A2 (en) * | 2002-01-08 | 2003-07-17 | Bernard Techologies, Inc. | Antimicrobial body covering articles |
US20110245576A1 (en) * | 2008-03-06 | 2011-10-06 | Keller-Spitzer Valerie | Textile fibers having photocatalytic properties for degrading chemical or biological agents, method for preparing same and use thereof in photocatalysis |
US20120070647A1 (en) * | 2010-09-16 | 2012-03-22 | O'Neill LLC | Thin-wall polymer coated articles and gloves and a method therefor |
Also Published As
Publication number | Publication date |
---|---|
WO2022069791A1 (en) | 2022-04-07 |
FI3977883T3 (en) | 2023-03-25 |
EP3977883B1 (en) | 2022-12-28 |
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