EP3977883B1 - Procédé de fabrication d'un gant et gant - Google Patents

Procédé de fabrication d'un gant et gant Download PDF

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Publication number
EP3977883B1
EP3977883B1 EP20199187.4A EP20199187A EP3977883B1 EP 3977883 B1 EP3977883 B1 EP 3977883B1 EP 20199187 A EP20199187 A EP 20199187A EP 3977883 B1 EP3977883 B1 EP 3977883B1
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EP
European Patent Office
Prior art keywords
glove
top layer
nanometric
photocatalytic properties
nanoparticles
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.)
Active
Application number
EP20199187.4A
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German (de)
English (en)
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EP3977883A1 (fr
Inventor
Sami LYYTINEN
Tiia LYYTINEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hofler Oy
Original Assignee
Hofler Oy
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Publication date
Application filed by Hofler Oy filed Critical Hofler Oy
Priority to EP20199187.4A priority Critical patent/EP3977883B1/fr
Priority to FIEP20199187.4T priority patent/FI3977883T3/fi
Priority to PCT/FI2021/050578 priority patent/WO2022069791A1/fr
Publication of EP3977883A1 publication Critical patent/EP3977883A1/fr
Application granted granted Critical
Publication of EP3977883B1 publication Critical patent/EP3977883B1/fr
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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.
  • Document WO 03/056951 A2 discloses an antimicrobial body covering articles, such as gloves, for retarding, killing or preventing microbiological contamination and/or neutralizing odours.
  • Document US 2012/070647 discloses articles and gloves having a polymer coating on at least a portion of the articles of gloves surface. The articles and gloves provide self-sanitizing capabilities.
  • Document US 2011/245576 A1 discloses textile fibers at least partially covered with nanometric sized semiconducting material having photocatalytic properties. Textile fibers are suitable for the manufacture of gloves, for example.
  • Document KR 20100084362 A discloses a leather glove having a woven inner skin.
  • the inner skin is coated with nanosized silver particles.
  • An object of the invention is to provide a method for manufacturing a glove and a glove, with which drawbacks relating to the prior art can be reduced.
  • the present invention relates to a method of manufacturing a glove, which glove comprises a top layer, which top layer is made of genuine or synthetic leather, 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, which top layer is made of genuine or synthetic leather, 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 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 sewing pieces of leather together to a desired shape.
  • 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 /l.
  • 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, 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.
  • 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 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, 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Gloves (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Claims (11)

  1. Procédé de fabrication d'un gant, lequel gant comprend une couche supérieure (10), laquelle couche supérieure est en cuir véritable ou synthétique, une surface extérieure (12) et une surface intérieure (14), laquelle surface intérieure est configurée pour être en contact avec la peau lorsque le gant est porté sur la main, caractérisé en ce que ledit procédé comprend une étape de recouvrement au moins partiellement de la surface extérieure (12) avec un matériau de taille nanométrique ayant des propriétés photocatalytiques.
  2. Procédé selon la revendication 1, caractérisé en ce que ledit procédé comprend en outre une étape de recouvrement au moins partiellement de la surface intérieure (14) avec un matériau de taille nanométrique ayant des propriétés photocatalytiques.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la surface extérieure (12) ou la surface intérieure (14) est au moins partiellement recouverte d'un matériau comprenant des nanoparticules faites d'un matériau semi-conducteur.
  4. Procédé selon la revendication 3, caractérisé en ce que les nanoparticules comprennent du dioxyde de titane Tİ02, de l'oxyde de fer Fe2O3, du trioxyde de tungstène WO3, de l'oxyde de zinc ZnO ou du carbure de silicium SiC.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une solution contenant un matériau de taille nanométrique ayant des propriétés photocatalytiques est pulvérisée sur la surface extérieure (12) et la solution pulvérisée est laissée sécher en un revêtement recouvrant au moins partiellement la surface extérieure (12).
  6. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la couche supérieure (10) est trempée dans une solution contenant un matériau de taille nanométrique ayant des propriétés photocatalytiques pour imprégner la couche supérieure (10) avec la solution et la couche supérieure (10) imbibée est laissée sécher.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la surface extérieure (12) est exposée à un rayonnement lumineux pour activer les propriétés photocatalytiques du matériau de taille nanométrique.
  8. Gant comprenant une couche supérieure (10), laquelle couche supérieure est faite de cuir véritable ou synthétique, une surface extérieure (12) et une surface intérieure (14), laquelle surface intérieure (14) est configurée pour être en contact avec la peau lorsque le gant est porté sur la main, caractérisé en ce que ladite surface extérieure (12) est au moins partiellement recouverte d'un matériau de taille nanométrique ayant des propriétés photocatalytiques.
  9. Gant selon la revendication 8, caractérisé en ce que la surface intérieure (14) est au moins partiellement recouverte d'un matériau de taille nanométrique ayant des propriétés photocatalytiques.
  10. Gant selon la revendication 8 ou 9, caractérisé en ce que la surface extérieure (12) ou surface intérieure (14) est au moins partiellement recouverte d'un matériau comprenant des nanoparticules faites d'un matériau semiconducteur.
  11. Gant selon l'une quelconque des revendications 8 à 10, caractérisé en ce que les nanoparticules comprennent du dioxyde de titane Tİ02, de l'oxyde de fer Fe2O3, du trioxyde de tungstène WO3, de l'oxyde de zinc ZnO ou du carbure de silicium SiC.
EP20199187.4A 2020-09-30 2020-09-30 Procédé de fabrication d'un gant et gant Active EP3977883B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20199187.4A EP3977883B1 (fr) 2020-09-30 2020-09-30 Procédé de fabrication d'un gant et gant
FIEP20199187.4T FI3977883T3 (fi) 2020-09-30 2020-09-30 Menetelmä käsineen valmistamiseksi ja käsine
PCT/FI2021/050578 WO2022069791A1 (fr) 2020-09-30 2021-08-27 Procédé de fabrication d'un gant et gant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20199187.4A EP3977883B1 (fr) 2020-09-30 2020-09-30 Procédé de fabrication d'un gant et gant

Publications (2)

Publication Number Publication Date
EP3977883A1 EP3977883A1 (fr) 2022-04-06
EP3977883B1 true EP3977883B1 (fr) 2022-12-28

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EP20199187.4A Active EP3977883B1 (fr) 2020-09-30 2020-09-30 Procédé de fabrication d'un gant et gant

Country Status (3)

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EP (1) EP3977883B1 (fr)
FI (1) FI3977883T3 (fr)
WO (1) WO2022069791A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100084362A (ko) * 2009-01-16 2010-07-26 김영배 방한용 가죽장갑

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449194B2 (en) * 2002-01-08 2008-11-11 Microactive Corp. Antimicrobial body covering articles
FR2928379B1 (fr) * 2008-03-06 2010-06-25 Centre Nat Rech Scient Fibres textiles ayant des proprietes photocatalytiques de degradation d'agents chimiques ou biologiques, procede de preparation et utilisation a la photocatalyse
US8719964B2 (en) * 2010-09-16 2014-05-13 O'Neill LLC Thin-wall polymer coated articles and gloves and a method therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100084362A (ko) * 2009-01-16 2010-07-26 김영배 방한용 가죽장갑

Also Published As

Publication number Publication date
FI3977883T3 (fi) 2023-03-25
WO2022069791A1 (fr) 2022-04-07
EP3977883A1 (fr) 2022-04-06

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