WO2016120654A1 - Protective kitchen gloves using ultra-high molecular weight polyethylene - Google Patents

Protective kitchen gloves using ultra-high molecular weight polyethylene Download PDF

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Publication number
WO2016120654A1
WO2016120654A1 PCT/IB2015/000083 IB2015000083W WO2016120654A1 WO 2016120654 A1 WO2016120654 A1 WO 2016120654A1 IB 2015000083 W IB2015000083 W IB 2015000083W WO 2016120654 A1 WO2016120654 A1 WO 2016120654A1
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WO
WIPO (PCT)
Prior art keywords
glove
rubber
kitchen
protective
finger
Prior art date
Application number
PCT/IB2015/000083
Other languages
French (fr)
Inventor
Ismail Abdulkadir OMER
Original Assignee
Umm Al-Qura University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Umm Al-Qura University filed Critical Umm Al-Qura University
Priority to US14/420,040 priority Critical patent/US20160213075A1/en
Priority to PCT/IB2015/000083 priority patent/WO2016120654A1/en
Publication of WO2016120654A1 publication Critical patent/WO2016120654A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00Gloves
    • A41D19/015Protective gloves
    • A41D19/01505Protective gloves resistant to mechanical aggressions, e.g. cutting. piercing
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00Gloves
    • A41D19/0055Plastic or rubber gloves
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00Gloves
    • A41D19/015Protective gloves
    • A41D19/01547Protective gloves with grip improving means
    • A41D19/01558Protective gloves with grip improving means using a layer of grip improving material
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00Materials for garments
    • A41D2500/50Synthetic resins or rubbers
    • A41D2500/52Synthetic resins or rubbers in sheet form

Definitions

  • the present disclosure relates to an ultra-high molecular weight polyethylene kitchen glove that protects a wearer from cuts, burns, moisture, and electrical shock while performing common kitchen activities.
  • the glove also incorporates a silk lining to repel moisture, a conductive silicone material for using electronic devices, and rubber bristles/scrubbers to aid in kitchen cleaning duties.
  • protective gloves are available for protecting and shielding a wearer's hands from various external hazards, including sharp items, high temperatures and toxic chemicals.
  • a drawback associated with protective gloves having high protective features is that protective gloves often inhibit movement of the wearer's hands and reduce the comfort of the user. Even simple tasks, such as griping an object or answering a cell phone can be difficult, requiring the wearer to remove the protective glove to perform these simple tasks.
  • protective gloves should 1) protect the wearer's hands from numerous external hazards and at the same time, 2) enable the wearer to perform a specific task better or faster than they would without the protective gloves, and 3) allow the wearer to perform everyday tasks, like answering a cell phone, not associated with the activity requiring protective equipment.
  • UHMWPE ultra-high molecular weight polyethylene
  • Tomono, K. (U.S. Patent No. US20130305430A1 - incorporated herein by reference in its entirety) discloses a glove body made up high-intensity polyethylene fibers and an anti- slipping particle in the coating layer due to which superior anti-slipping effect and gripping properties can be achieved.
  • Ashworth, J. et al. discloses a glove with a high molecular weight polyethylene fabric liner having an injection molded component which protects hands and enhances gripping, tactility, conductivity, flexibility, dexterity, impact-resistance, and abrasion-resistance.
  • Baker, J. et al. discloses a glove incorporating an ultra-high molecular weight polyethylene glove having a plurality of dots made of natural rubber that protects against cuts and abrasion, while still maintaining flexibility, dexterity and breathability.
  • one aspect of the present disclosure is to provide a kitchen glove that protects a wearer from cuts, burns, moisture, and electrical shock while performing common kitchen activities.
  • a protective kitchen glove is described herein that incorporates high-molecular weight polyethylene material to guard against abrasions and burns, a silk lining to repel moisture, a conductive silicone material to enable the wearer to operate electronic devices, and rubber bristles/scrubbers to aid in kitchen cleaning duties.
  • the present invention relates to a protective kitchen glove made of an ultra-high molecular weight polyethylene base material that fully covers palmer and dorsal surfaces of a human hand comprising four fingers cavities, a thumb cavity, a palm, a back of a hand, and a wrist. Also this kitchen glove incorporates a textured region located on the outer surface of the glove covering fingerprint pads of a thumb and index finger comprising a conductive silicone material. Furthermore, this kitchen glove includes a plurality of textured anti-slipping grips on an outer surface of the palmer side of the glove and is lined with a silk material in the inner cavity of the glove so as to make contact with the surface of skin when the glove is worn.
  • the protective kitchen glove contains a plurality of bristles located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand from the wrist to the pinky, in parallel to an arm. Furthermore, the glove includes a plurality of spherical scrubbers located on a plurality of fingerprint pads on the outer surface of the glove.
  • the thumb cavity, textured silicone regions, textured rubber grips, rubber bristles, and spherical rubber scrubbers are oriented for a left hand or a right hand.
  • the textured silicone material comprises arched friction ridges resembling a human finger print.
  • the anti-slipping grips comprise a plurality of rubber fibers oriented orthogonal to the finger cavities.
  • the rubber fibers oriented orthogonal to the finger cavities are spread over the surface of the palm of the glove, ranging vertically from the finger cavities to the wrist, and horizontally from the thumb cavity to an outer part of the hand.
  • the rubber fibers are evenly distributed over the surface of the palm.
  • the rubber fibers oriented orthogonal to the finger cavities are located on the palmar side of the finger and thumb cavities.
  • the rubber fibers are evenly distributed over the surface of the finger and thumb cavities.
  • the silk material lining the inner cavity of the glove fully encloses the fingers, the thumb, the palm, the back of the hand, and the wrist.
  • the bristles comprise a rubber material, and are located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand, ranging vertically from the pinky to the wrist.
  • the spherical scrubbers comprise a rubber material, and are located on the outer surface of the glove, on the fingerprint pad region of a middle finger, a ring finger, or both. In one embodiment, the rubber spherical scrubbers are evenly distributed over the fingerprint pad surface.
  • the total thickness including the base material, the inner lining material, and any material present on the surface of the glove (e.g. spherical rubber scrubbers) ranges from 0.05-5 mm.
  • the kitchen glove safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock while performing kitchen activities.
  • the kitchen glove enables a wearer to operate an electronic device, while performing kitchen activities.
  • Fig. 1 is an illustration of the palmar side of a right-handed glove composed primarily of ultra-high molecular weight polyethylene, with features such as conductive silicone material [101], anti-slipping grips [102], spherical rubber scrubbers [103], rubber bristles [104], and inscriptions [105].
  • Fig. 2 is an illustration of the dorsal side of a left-handed glove composed primarily of ultra-high molecular weight polyethylene, with inscriptions [105] and drawings [106].
  • Ultra-high molecular weight is commonly used to refer to macromolecules with molecular weights that exceed 10 6 g/mol.
  • Ultra-high molecular weight polyethylene is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), or high-performance polyethylene (HPPE), UHMWPE has extremely long chains, with a molecular mass typically between 2 and 6 million Daltons. However, UHMWPE can be produced with a molecular mass up to 10 million daltons. The longer chain serves to transfer load more effectively to the polymer backbone by strengthening intermolecular interactions. This load transfer results in a very tough material, with the highest impact strength of any thermoplastic presently made.
  • Ultra-high molecular weight polyethylene is highly resistant to corrosive chemicals, has extremely low moisture absorption and a very low coefficient of friction, is self-lubricating, and is highly resistant to abrasion. In terms of abrasion resistance, Ultra-high molecular weight polyethylene, in some forms, is 15 times more resistant to abrasion than carbon steel. In general, the maximum impact strength of UHMWPE is reached in a molecular weight range of 3.5-4 million daltons. Its coefficient of friction is significantly lower than that of nylon and acetal, and is comparable to that of polytetrafluoroethylene (PTFE, Teflon), but UHMWPE has better abrasion resistance than PTFE.
  • PTFE polytetrafluoroethylene
  • This material also has ideal thermal properties, with a melting point near 150°C, a decomposition point over 300°C, and a brittle point of less than -150°C. Due to these properties, ultra-high molecular weight polyethylene has been utilized for many applications, including personal armor, fishing lines, high-performance sails, synthetic ice, biomaterials, windows and doors, and wires/cables.
  • UHMWPE is synthesized from monomers of ethylene, which are bonded together to form the base polyethylene product. These ultra-high molecular weight polyethylene molecules are several orders of magnitude longer than those of high-density polyethylene (HDPE), with UHMWPE molecules typically containing 100,000 to 250,000 monomer units per molecule, compared to HDPE's 700 to 1,800 monomers.
  • HDPE high-density polyethylene
  • UHMWPE can also be manufactured in various forms including, but not limited to, fibers (e.g. Dyneema®, Spectra®, and Tekmilon® fibers), sheets (e.g. TIVAR® 1000 and Dyna-Flo® 1000), and powders (e.g. GUR® UHMWPE).
  • fibers e.g. Dyneema®, Spectra®, and Tekmilon® fibers
  • sheets e.g. TIVAR® 1000 and Dyna-Flo® 1000
  • powders e.g. GUR® UHMWPE
  • UHMWPE Ultra High Density Polyethylene
  • UHMWPE Ultra High Density Polyethylene
  • gel spinning a precisely heated gel of UHMWPE is extruded through a spinneret, drawn through the air, and then cooled in a water bath.
  • the end-result is a fiber with a high degree of molecular orientation, and therefore exceptional tensile strength.
  • Gel spinning depends on isolating individual chain molecules in the solvent so that intermolecular entanglements are minimal. Entanglements make chain orientation more difficult, and lower the strength of the final product.
  • the present invention relates to a protective kitchen glove made of an ultra-high molecular weight polyethylene base material that fully covers palmer and dorsal surfaces of a human hand comprising four fingers cavities, a thumb cavity, a palm, a back of a hand, and a wrist.
  • This UHMWPE layer, or base material is flexible and has strong puncture-resistant characteristics, acting primarily as a protective barrier for the protective kitchen glove.
  • the base material may further contain other additives in addition to the principal component described above.
  • the other additive is exemplified by a plasticizer, a stabilizer, a thickening agent, and the like.
  • the UHMWPE material may refer to material that has been processed by a variety of methods described above.
  • UHMWPE may refer to material that has been crosslinked, or that has not been crosslinked.
  • the human hand includes a palm, which is the central region of the anterior part of the hand, located superficially to the metacarpus.
  • the skin in this area contains dermal papillae to increase friction, such as are also present on the fingers and used for fingerprints.
  • the dorsal is the corresponding area on the posterior part of the hand.
  • the thumb (connected to the trapezium) is located on one of the sides, parallel to the arm.
  • the term "palmer" as referred to in the glove means a surface which faces to an object upon gripping the object and covers a face of the entirety from the wrist to fingertips.
  • dorsal as referred to in the glove means a surface which faces away from an object upon gripping the object and covers a face of the entirety from the wrist to fingertips.
  • main body of hand is referred to as a portion excluding fingers of a hand and as a site that includes from bottoms and crotches of fingers to a wrist.
  • the body of the glove includes a main body portion for covering a main body of a hand of a wearer, including the back of the hand, and palm regions.
  • the glove also includes extended cavities, or cylindrical cavities, extending out from the main body portion comprising a thumb cavity, an index finger cavity, a middle finger cavity, a ring finger cavity, and a pinky finger cavity, for covering these parts of the wearer's hand.
  • these cavities are cylindrical in shape having fingertip portions that are closed or sealed.
  • a cylindrical portion of the glove for covering the wear's wrist.
  • This cylindrical wrist covering portion has an opening into which the wearer can insert his/her hand and is optionally formed in a cylindrical shape such that the opening diameter gradually increases toward the opened edge.
  • This cylindrical wrist covering portion may optionally contain an elastic or stretchable band.
  • this kitchen glove incorporates a textured region located on the outer surface of the glove covering fingerprint pads of a thumb and index finger comprising a conductive silicone material [101].
  • Electrical conductivity is the reciprocal of electrical resistivity, and measures a material's ability to conduct an electric current.
  • a conductor such as a metal, has a high conductivity and a low resistivity.
  • Silicones also known as siloxanes, are inert, synthetic compounds with a variety of forms and uses. Typically heat-resistant and rubber-like, they are used in sealants, adhesives, lubricants, medical applications, cooking utensils, and insulation. Silicones are polymers that include silicon together with carbon, hydrogen, oxygen, and sometimes other elements.
  • silicone oil silicone grease, silicone rubber, silicone resin, and silicone caulk.
  • Silicones can be formulated to be electrically insulative or conductive, and is therefore suitable for a wide array of electrical applications.
  • the textured region located on the outer surface of the glove covering fingerprint pad regions of a thumb and index finger are comprised primarily of a conductive silicone material [101], which enables the wearer to operate a touch screen or other electronic devices without needing to remove the protective kitchen glove.
  • the textured silicone material comprises arched friction ridges resembling a human finger print.
  • Anti-slip properties can be added to such materials in the forms of tapes, coatings, sealants, or textured surfaces.
  • anti-slip textured surfaces or grips [102] are added to the palmar surface of the protective kitchen gloves to provide added friction between the gloves and grasped objects.
  • Synthetic rubber invariably a polymer, is any type of artificial elastomer mainly synthesized from petroleum byproducts.
  • An elastomer is a material with the mechanical (or material) property that it can undergo much more elastic deformation under stress than most materials and still return to its previous size without permanent deformation.
  • Natural rubber is mainly poly-cis-isoprene, containing traces of impurities like protein, dirt etc. Although it exhibits many excellent properties in terms of mechanical performance, natural rubber is often inferior to certain synthetic rubbers, especially with respect to its thermal stability and its compatibility with petroleum products.
  • Synthetic rubber is made by the polymerization of a variety of petroleum-based precursors called monomers.
  • SBR styrene-butadiene rubbers
  • examples of rubber include a styrene-butadiene rubber, a nitrile-butadiene rubber, a urethane rubber, an isoprene rubber, an acryl rubber, a chloroprene rubber, a butyl rubber, a butadiene rubber, a fluorine rubber, an epichlorohydrin rubber, an ethylene- propylene rubber, natural rubbers, and the like.
  • the shape of the textured anti-slipping grips is exemplified by a spherical shape, a semi-spherical shape, a cubic shape, a needle shape, a rod shape, a spindle shape, a plate shape, a scale shape, a fiber shape, and the like.
  • the anti-slipping grips [102] are fiber shaped.
  • the anti-slipping grips [102] comprise a plurality of rubber fibers, such as the ones described above, oriented orthogonal to the finger cavities.
  • the rubber fibers oriented orthogonal to the finger cavities are spread over the surface of the palm of the glove, ranging vertically from the finger cavities to the wrist, and horizontally from the thumb cavity to an outer part of the hand.
  • the rubber fibers are evenly distributed over the surface of the palm.
  • the rubber fibers are oriented orthogonal to the finger cavities and are located on the palmar side of the finger and thumb cavities.
  • these fibers [102] are concentrated in between the distal interphalangeal joints and proximal interphalangeal joints, and in between the proximal interphalangeal joints and the metacarpophalangeal joints of the finger cavities, as depicted in Fig. 1.
  • the rubber fibers are evenly distributed over the surface of the finger and thumb cavities.
  • Silk is a natural protein fiber, some forms of which can be woven into textiles.
  • the protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.
  • Silk fibers have a triangular cross section with rounded corners, and the fibroin-heavy chain is composed mostly of beta-sheets.
  • Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers and is one of the strongest natural fibers. Furthermore, silk's absorbency makes it comfortable to wear in warm weather and while active.
  • the protective kitchen glove is also lined with a silk material in the inner cavity of the glove so as to make contact with the surface of skin when the glove is worn.
  • This inner silk lining preferably reduces moisture buildup and is a non-allergenic material.
  • the base UHMWPE material acts as the primary protective barrier, the thickness of the silk inner- lining is preferably smaller than the thickness of the UHMWPE layer.
  • the silk lining encompasses part or all of the hand, which may include the palm, back of the hand, figures, and/or thumb.
  • the silk material lining the inner cavity of the glove fully encloses all parts of the hand, including the fingers, the thumb, the palm, the back of the hand, and the wrist.
  • the protective kitchen glove contains a plurality of bristles [104] located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand from the wrist to the pinky, in parallel to an arm.
  • Bristles can be defined as short, stiff, hair-like structures.
  • these bristles may be glued to, sewed to, partially embedded in, and/or molded in place to the body of the UHMWPE glove.
  • the bristles are attached to the body of the UHMWPE glove by passing through the entire glove from the inner cavity, whereby the bristles protrude from the outer surface of the glove and are attached from the inside, through any of the methods described above.
  • the bristles [104] are constructed from a rubber material, natural mammal hair such as boar and horse fibers, a steel material, a synthetic fiber such as Nylon or Teflon, and the like.
  • the bristles are constructed from a rubber material.
  • the bristles [104] comprise a rubber material, and are located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand, ranging vertically from the pinky to the wrist.
  • the protective kitchen glove also contains a plurality of spherical scrubbers [103] located on a plurality of fingerprint pads on the outer surface of the glove.
  • a plurality of spherical scrubbers [103] may be provided in any form or configuration and/or any combination of configurations. That is, the spherical scrubbers may be spherical, semi-spherical, and are but one non-limiting example of the rubber scrubbers. In one embodiment, the spherical scrubbers comprise a rubber material, and are located on the outer surface of the glove, on the fingerprint pad region of a middle finger, a ring finger, or both.
  • the rubber spherical scrubbers are evenly distributed over the fingerprint pad surface.
  • the total thickness including the base material, the inner lining material, and any material present on the surface of the glove (e.g. spherical rubber scrubbers) ranges from 0.05-5 mm, preferably, 0.1 -3 mm, more preferably 0.15-2 mm, even more preferably 0.2-1 mm.
  • the thickness may also vary when measured at various locations of the glove. For example, the thickness of the palm of the glove may be larger than the thickness in the knuckle region of the glove.
  • Any component on the surface of the glove e.g. spherical rubber scrubbers
  • the total thickness of the glove comprising these components may also vary, even when measured at similar locations.
  • the glove may be manufactured with varying thicknesses depending on the application, with thicker gloves intended to provide better protection, and thinner gloves intended to provide better tactile perception.
  • the thumb cavity, textured silicone regions, textured rubber grips, rubber bristles, and spherical rubber scrubbers are oriented for a left hand or a right hand.
  • Personal protective equipment refers to protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury.
  • the hazards addressed by protective equipment include physical, electrical, heat, chemicals, biohazards, and airborne particulate matter.
  • Protective equipment may be worn for job-related
  • the kitchen glove safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock while performing kitchen activities.
  • the kitchen glove enables a wearer to operate an electronic device, while performing kitchen activities.
  • the protective kitchen glove incorporates different colors and inscriptions on the palmar side of the glove. As can be seen in Fig. 1 , these inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist portion of the glove.
  • Fig. 1 One non-limiting example depicted in Fig. 1 is an inscription reading "I love my work”.
  • the protective kitchen glove incorporates different colors and inscriptions on the dorsal side of the glove.
  • these inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist, back of the hand, thumb cavity, and finger cavities of the glove.
  • One non-limiting example depicted in Fig. 2 is an inscription [105] reading "I'm proud”.
  • the kitchen glove includes drawings [106] on the dorsal side of the glove. These drawings may be, but are not limited to, paintings resembling finger nail polish on the ends of one or more finger/thumb cavities.
  • the ultra-high molecular weight polyethylene kitchen glove is comprised of different components.
  • Fig. 1 shows an example of the palmar side of a right-handed glove composed primarily of ultra-high molecular weight polyethylene.
  • the depicted kitchen glove contains a conductive silicone material [101] on the thumb and/or pointer finger pad, which enables a wearer to operate a device using a touch screen.
  • the glove also includes anti-slipping grips [102] on the palm, finger, and thumb cavities in the form of fibers, to provide friction when gripping an object.
  • Spherical rubber scrubbers [103], located on a finger pad, and rubber bristles [104] on the thin outer region of a palm, extending from the pinky to the wrist are also incorporated onto the kitchen glove.
  • the kitchen glove depicted in Fig. 1 incorporates different colors and inscriptions [105].
  • the silk inner lining is not depicted.
  • the protective kitchen glove contains different colors and inscriptions on the dorsal side of the glove. These inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist, back of the hand, thumb cavity, and finger cavities of the glove.
  • the kitchen glove also includes drawings [106] on the dorsal side of the glove in the form of paintings resembling finger nail polish on the ends of the thumb and finger cavities.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Gloves (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

A protective kitchen glove that safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock. The glove is primarily composed of an ultra-high molecular weight polyethylene base material and a silk inner-lining. A textured conductive silicone material is also incorporated on a finger pad along with textured anti-slipping grips on an outer surface of the palmer side of the glove. Furthermore, rubber bristles and spherical rubber scrubbers are incorporated to aid in kitchen cleaning activities.

Description

TITLE
PROTECTIVE KITCHEN GLOVES USING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE
BACKGROUND OF THE INVENTION TECHNICAL FIELD
The present disclosure relates to an ultra-high molecular weight polyethylene kitchen glove that protects a wearer from cuts, burns, moisture, and electrical shock while performing common kitchen activities. The glove also incorporates a silk lining to repel moisture, a conductive silicone material for using electronic devices, and rubber bristles/scrubbers to aid in kitchen cleaning duties.
DESCRIPTION OF THE RELATED ART
The "background" description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this background section, as well as aspects of the description which may not otherwise qualify as prior art at the time of filing, are neither expressly or impliedly admitted as prior art against the present invention.
Many protective gloves are available for protecting and shielding a wearer's hands from various external hazards, including sharp items, high temperatures and toxic chemicals. However, a drawback associated with protective gloves having high protective features, is that protective gloves often inhibit movement of the wearer's hands and reduce the comfort of the user. Even simple tasks, such as griping an object or answering a cell phone can be difficult, requiring the wearer to remove the protective glove to perform these simple tasks. In an ideal situation, protective gloves should 1) protect the wearer's hands from numerous external hazards and at the same time, 2) enable the wearer to perform a specific task better or faster than they would without the protective gloves, and 3) allow the wearer to perform everyday tasks, like answering a cell phone, not associated with the activity requiring protective equipment.
One environment where such a glove would be impactful is in a commercial or residential kitchen. While performing kitchen duties, many different tasks can be required, such as cooking over a hot stove, cutting food with a knife, and cleaning dirty dishes. While many different types of kitchen gloves exist for accomplishing these tasks individually, no kitchen glove universally enables a wearer to perform all of these kitchen duties using one type of glove.
One abrasion resistant material utilized in several protective gloves is ultra-high molecular weight polyethylene (UHMWPE). Several gloves have been reported that provide a protective quality and improve tactile functionality for a wearer using this material. However, none of these gloves are intended for commercial or residential kitchen use, and none meet all of these defining characteristics.
Tomono, K. (U.S. Patent No. US20130305430A1 - incorporated herein by reference in its entirety) discloses a glove body made up high-intensity polyethylene fibers and an anti- slipping particle in the coating layer due to which superior anti-slipping effect and gripping properties can be achieved.
Ashworth, J. et al. (U.S. Patent No. US20120227158A1 - incorporated herein by reference in its entirety) discloses a glove with a high molecular weight polyethylene fabric liner having an injection molded component which protects hands and enhances gripping, tactility, conductivity, flexibility, dexterity, impact-resistance, and abrasion-resistance.
Baker, J. et al. (U.S. patent No. US7788737B2 - incorporated herein by reference in its entirety) discloses a glove incorporating an ultra-high molecular weight polyethylene glove having a plurality of dots made of natural rubber that protects against cuts and abrasion, while still maintaining flexibility, dexterity and breathability.
Thus, a need exists for a protective glove for various kitchen duties, which includes superior protective characteristics and at the same time, promotes a high degree of functionality and comfort.
In view of the forgoing, one aspect of the present disclosure is to provide a kitchen glove that protects a wearer from cuts, burns, moisture, and electrical shock while performing common kitchen activities. A protective kitchen glove is described herein that incorporates high-molecular weight polyethylene material to guard against abrasions and burns, a silk lining to repel moisture, a conductive silicone material to enable the wearer to operate electronic devices, and rubber bristles/scrubbers to aid in kitchen cleaning duties.
BRIEF SUMMARY OF THE INVENTION
According to a first aspect, the present invention relates to a protective kitchen glove made of an ultra-high molecular weight polyethylene base material that fully covers palmer and dorsal surfaces of a human hand comprising four fingers cavities, a thumb cavity, a palm, a back of a hand, and a wrist. Also this kitchen glove incorporates a textured region located on the outer surface of the glove covering fingerprint pads of a thumb and index finger comprising a conductive silicone material. Furthermore, this kitchen glove includes a plurality of textured anti-slipping grips on an outer surface of the palmer side of the glove and is lined with a silk material in the inner cavity of the glove so as to make contact with the surface of skin when the glove is worn. Moreover, the protective kitchen glove contains a plurality of bristles located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand from the wrist to the pinky, in parallel to an arm. Furthermore, the glove includes a plurality of spherical scrubbers located on a plurality of fingerprint pads on the outer surface of the glove.
In one embodiment, the thumb cavity, textured silicone regions, textured rubber grips, rubber bristles, and spherical rubber scrubbers are oriented for a left hand or a right hand.
In one embodiment, the textured silicone material comprises arched friction ridges resembling a human finger print.
In one embodiment, the anti-slipping grips comprise a plurality of rubber fibers oriented orthogonal to the finger cavities.
In one embodiment, the rubber fibers oriented orthogonal to the finger cavities are spread over the surface of the palm of the glove, ranging vertically from the finger cavities to the wrist, and horizontally from the thumb cavity to an outer part of the hand.
In one embodiment, the rubber fibers are evenly distributed over the surface of the palm.
In one embodiment, the rubber fibers oriented orthogonal to the finger cavities are located on the palmar side of the finger and thumb cavities.
In one embodiment, the rubber fibers are evenly distributed over the surface of the finger and thumb cavities.
In one embodiment, the silk material lining the inner cavity of the glove fully encloses the fingers, the thumb, the palm, the back of the hand, and the wrist.
In one embodiment, the bristles comprise a rubber material, and are located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand, ranging vertically from the pinky to the wrist.
In one embodiment, the spherical scrubbers comprise a rubber material, and are located on the outer surface of the glove, on the fingerprint pad region of a middle finger, a ring finger, or both. In one embodiment, the rubber spherical scrubbers are evenly distributed over the fingerprint pad surface.
In one embodiment, the total thickness, including the base material, the inner lining material, and any material present on the surface of the glove (e.g. spherical rubber scrubbers) ranges from 0.05-5 mm.
In one embodiment, the kitchen glove safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock while performing kitchen activities.
In one embodiment, the kitchen glove enables a wearer to operate an electronic device, while performing kitchen activities.
The foregoing paragraphs have been provided by way of general introduction, and are not intended to limit the scope of the following claims. The described embodiments, together with further advantages, will be best understood by reference to the following detailed description taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
Fig. 1 is an illustration of the palmar side of a right-handed glove composed primarily of ultra-high molecular weight polyethylene, with features such as conductive silicone material [101], anti-slipping grips [102], spherical rubber scrubbers [103], rubber bristles [104], and inscriptions [105].
Fig. 2 is an illustration of the dorsal side of a left-handed glove composed primarily of ultra-high molecular weight polyethylene, with inscriptions [105] and drawings [106]. DETAILED DESCRIPTION OF THE EMBODIMENTS
Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views.
The term "ultra-high molecular weight" is commonly used to refer to macromolecules with molecular weights that exceed 106 g/mol. Ultra-high molecular weight polyethylene (UHMWPE) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), or high-performance polyethylene (HPPE), UHMWPE has extremely long chains, with a molecular mass typically between 2 and 6 million Daltons. However, UHMWPE can be produced with a molecular mass up to 10 million daltons. The longer chain serves to transfer load more effectively to the polymer backbone by strengthening intermolecular interactions. This load transfer results in a very tough material, with the highest impact strength of any thermoplastic presently made. Ultra-high molecular weight polyethylene is highly resistant to corrosive chemicals, has extremely low moisture absorption and a very low coefficient of friction, is self-lubricating, and is highly resistant to abrasion. In terms of abrasion resistance, Ultra-high molecular weight polyethylene, in some forms, is 15 times more resistant to abrasion than carbon steel. In general, the maximum impact strength of UHMWPE is reached in a molecular weight range of 3.5-4 million daltons. Its coefficient of friction is significantly lower than that of nylon and acetal, and is comparable to that of polytetrafluoroethylene (PTFE, Teflon), but UHMWPE has better abrasion resistance than PTFE. This material also has ideal thermal properties, with a melting point near 150°C, a decomposition point over 300°C, and a brittle point of less than -150°C. Due to these properties, ultra-high molecular weight polyethylene has been utilized for many applications, including personal armor, fishing lines, high-performance sails, synthetic ice, biomaterials, windows and doors, and wires/cables. UHMWPE is synthesized from monomers of ethylene, which are bonded together to form the base polyethylene product. These ultra-high molecular weight polyethylene molecules are several orders of magnitude longer than those of high-density polyethylene (HDPE), with UHMWPE molecules typically containing 100,000 to 250,000 monomer units per molecule, compared to HDPE's 700 to 1,800 monomers.
UHMWPE can also be manufactured in various forms including, but not limited to, fibers (e.g. Dyneema®, Spectra®, and Tekmilon® fibers), sheets (e.g. TIVAR® 1000 and Dyna-Flo® 1000), and powders (e.g. GUR® UHMWPE).
Even with similar molecular compositions, the properties of UHMWPE samples can vary depending on the method of production. UHMWPE may be processed variously by compression molding, ram extrusion, gel spinning, and sintering, among others. In gel spinning a precisely heated gel of UHMWPE is extruded through a spinneret, drawn through the air, and then cooled in a water bath. The end-result is a fiber with a high degree of molecular orientation, and therefore exceptional tensile strength. Gel spinning depends on isolating individual chain molecules in the solvent so that intermolecular entanglements are minimal. Entanglements make chain orientation more difficult, and lower the strength of the final product.
According to a first aspect, the present invention relates to a protective kitchen glove made of an ultra-high molecular weight polyethylene base material that fully covers palmer and dorsal surfaces of a human hand comprising four fingers cavities, a thumb cavity, a palm, a back of a hand, and a wrist. This UHMWPE layer, or base material, is flexible and has strong puncture-resistant characteristics, acting primarily as a protective barrier for the protective kitchen glove. In addition, the base material may further contain other additives in addition to the principal component described above. The other additive is exemplified by a plasticizer, a stabilizer, a thickening agent, and the like. In terms of the present invention, the UHMWPE material may refer to material that has been processed by a variety of methods described above. Furthermore UHMWPE may refer to material that has been crosslinked, or that has not been crosslinked.
The human hand includes a palm, which is the central region of the anterior part of the hand, located superficially to the metacarpus. The skin in this area contains dermal papillae to increase friction, such as are also present on the fingers and used for fingerprints. The dorsal is the corresponding area on the posterior part of the hand. There are five digits attached to the hand: the four fingers, namely the index finger, middle finger, ring finger, pinky finger, as well as a thumb. The thumb (connected to the trapezium) is located on one of the sides, parallel to the arm. In the present disclosure, the term "palmer" as referred to in the glove means a surface which faces to an object upon gripping the object and covers a face of the entirety from the wrist to fingertips. The term "dorsal" as referred to in the glove means a surface which faces away from an object upon gripping the object and covers a face of the entirety from the wrist to fingertips. In addition, "main body of hand" is referred to as a portion excluding fingers of a hand and as a site that includes from bottoms and crotches of fingers to a wrist.
The body of the glove includes a main body portion for covering a main body of a hand of a wearer, including the back of the hand, and palm regions. The glove also includes extended cavities, or cylindrical cavities, extending out from the main body portion comprising a thumb cavity, an index finger cavity, a middle finger cavity, a ring finger cavity, and a pinky finger cavity, for covering these parts of the wearer's hand. In general, these cavities are cylindrical in shape having fingertip portions that are closed or sealed. Also extending from the main body, opposite of the extending finger cavities, is a cylindrical portion of the glove for covering the wear's wrist. This cylindrical wrist covering portion has an opening into which the wearer can insert his/her hand and is optionally formed in a cylindrical shape such that the opening diameter gradually increases toward the opened edge. This cylindrical wrist covering portion may optionally contain an elastic or stretchable band.
Referring now to Fig. 1, this kitchen glove incorporates a textured region located on the outer surface of the glove covering fingerprint pads of a thumb and index finger comprising a conductive silicone material [101]. Electrical conductivity is the reciprocal of electrical resistivity, and measures a material's ability to conduct an electric current. A conductor, such as a metal, has a high conductivity and a low resistivity. Silicones, also known as siloxanes, are inert, synthetic compounds with a variety of forms and uses. Typically heat-resistant and rubber-like, they are used in sealants, adhesives, lubricants, medical applications, cooking utensils, and insulation. Silicones are polymers that include silicon together with carbon, hydrogen, oxygen, and sometimes other elements. Some common forms include silicone oil, silicone grease, silicone rubber, silicone resin, and silicone caulk. Silicones can be formulated to be electrically insulative or conductive, and is therefore suitable for a wide array of electrical applications. In a preferred embodiment of the present invention, the textured region located on the outer surface of the glove covering fingerprint pad regions of a thumb and index finger are comprised primarily of a conductive silicone material [101], which enables the wearer to operate a touch screen or other electronic devices without needing to remove the protective kitchen glove.
In one embodiment, the textured silicone material comprises arched friction ridges resembling a human finger print.
When wet, many materials can be slippery, meaning there is little resistance or friction between the material and an object to be gripped. Anti-slip properties can be added to such materials in the forms of tapes, coatings, sealants, or textured surfaces. In a preferred embodiment, anti-slip textured surfaces or grips [102] are added to the palmar surface of the protective kitchen gloves to provide added friction between the gloves and grasped objects.
Synthetic rubber, invariably a polymer, is any type of artificial elastomer mainly synthesized from petroleum byproducts. An elastomer is a material with the mechanical (or material) property that it can undergo much more elastic deformation under stress than most materials and still return to its previous size without permanent deformation. Natural rubber is mainly poly-cis-isoprene, containing traces of impurities like protein, dirt etc. Although it exhibits many excellent properties in terms of mechanical performance, natural rubber is often inferior to certain synthetic rubbers, especially with respect to its thermal stability and its compatibility with petroleum products. Synthetic rubber is made by the polymerization of a variety of petroleum-based precursors called monomers. The most prevalent synthetic rubbers are styrene-butadiene rubbers (SBR) derived from the copolymerization of styrene and 1,3 -butadiene. Examples of rubber include a styrene-butadiene rubber, a nitrile-butadiene rubber, a urethane rubber, an isoprene rubber, an acryl rubber, a chloroprene rubber, a butyl rubber, a butadiene rubber, a fluorine rubber, an epichlorohydrin rubber, an ethylene- propylene rubber, natural rubbers, and the like.
The shape of the textured anti-slipping grips is exemplified by a spherical shape, a semi-spherical shape, a cubic shape, a needle shape, a rod shape, a spindle shape, a plate shape, a scale shape, a fiber shape, and the like. In a preferred embodiment, the anti-slipping grips [102] are fiber shaped.
In one embodiment, the anti-slipping grips [102] comprise a plurality of rubber fibers, such as the ones described above, oriented orthogonal to the finger cavities. In one embodiment, the rubber fibers oriented orthogonal to the finger cavities are spread over the surface of the palm of the glove, ranging vertically from the finger cavities to the wrist, and horizontally from the thumb cavity to an outer part of the hand.
In one embodiment, the rubber fibers are evenly distributed over the surface of the palm.
In one embodiment, the rubber fibers are oriented orthogonal to the finger cavities and are located on the palmar side of the finger and thumb cavities. Preferably, these fibers [102] are concentrated in between the distal interphalangeal joints and proximal interphalangeal joints, and in between the proximal interphalangeal joints and the metacarpophalangeal joints of the finger cavities, as depicted in Fig. 1.
In one embodiment, the rubber fibers are evenly distributed over the surface of the finger and thumb cavities.
Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. Silk fibers have a triangular cross section with rounded corners, and the fibroin-heavy chain is composed mostly of beta-sheets. Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers and is one of the strongest natural fibers. Furthermore, silk's absorbency makes it comfortable to wear in warm weather and while active.
The protective kitchen glove is also lined with a silk material in the inner cavity of the glove so as to make contact with the surface of skin when the glove is worn. This inner silk lining preferably reduces moisture buildup and is a non-allergenic material. Because the base UHMWPE material acts as the primary protective barrier, the thickness of the silk inner- lining is preferably smaller than the thickness of the UHMWPE layer. In one embodiment, the silk lining encompasses part or all of the hand, which may include the palm, back of the hand, figures, and/or thumb. In a preferred embodiment, the silk material lining the inner cavity of the glove fully encloses all parts of the hand, including the fingers, the thumb, the palm, the back of the hand, and the wrist.
The protective kitchen glove contains a plurality of bristles [104] located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand from the wrist to the pinky, in parallel to an arm. Bristles can be defined as short, stiff, hair-like structures. In one embodiment, these bristles may be glued to, sewed to, partially embedded in, and/or molded in place to the body of the UHMWPE glove. In another embodiment, the bristles are attached to the body of the UHMWPE glove by passing through the entire glove from the inner cavity, whereby the bristles protrude from the outer surface of the glove and are attached from the inside, through any of the methods described above.
In one embodiment, the bristles [104] are constructed from a rubber material, natural mammal hair such as boar and horse fibers, a steel material, a synthetic fiber such as Nylon or Teflon, and the like.
In a preferred embodiment, the bristles are constructed from a rubber material.
In one embodiment, the bristles [104] comprise a rubber material, and are located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand, ranging vertically from the pinky to the wrist.
The protective kitchen glove also contains a plurality of spherical scrubbers [103] located on a plurality of fingerprint pads on the outer surface of the glove.
It will be understood that a plurality of spherical scrubbers [103] may be provided in any form or configuration and/or any combination of configurations. That is, the spherical scrubbers may be spherical, semi-spherical, and are but one non-limiting example of the rubber scrubbers. In one embodiment, the spherical scrubbers comprise a rubber material, and are located on the outer surface of the glove, on the fingerprint pad region of a middle finger, a ring finger, or both.
In one embodiment, the rubber spherical scrubbers are evenly distributed over the fingerprint pad surface.
In one embodiment, the total thickness, including the base material, the inner lining material, and any material present on the surface of the glove (e.g. spherical rubber scrubbers) ranges from 0.05-5 mm, preferably, 0.1 -3 mm, more preferably 0.15-2 mm, even more preferably 0.2-1 mm. The thickness may also vary when measured at various locations of the glove. For example, the thickness of the palm of the glove may be larger than the thickness in the knuckle region of the glove. Any component on the surface of the glove (e.g. spherical rubber scrubbers) may also have a variable thickness. Therefore, the total thickness of the glove comprising these components may also vary, even when measured at similar locations. Furthermore, the glove may be manufactured with varying thicknesses depending on the application, with thicker gloves intended to provide better protection, and thinner gloves intended to provide better tactile perception.
In one embodiment, the thumb cavity, textured silicone regions, textured rubber grips, rubber bristles, and spherical rubber scrubbers are oriented for a left hand or a right hand.
Personal protective equipment refers to protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury. The hazards addressed by protective equipment include physical, electrical, heat, chemicals, biohazards, and airborne particulate matter. Protective equipment may be worn for job-related
occupational safety and health purposes, as well as for sports and other recreational activities. The purpose of personal protective equipment is to reduce employee exposure to hazards, and as such, any personal protective equipment item imposes a barrier between the wearer and the working environment.
In one embodiment, the kitchen glove safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock while performing kitchen activities.
In one embodiment, the kitchen glove enables a wearer to operate an electronic device, while performing kitchen activities.
In one embodiment, the protective kitchen glove incorporates different colors and inscriptions on the palmar side of the glove. As can be seen in Fig. 1 , these inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist portion of the glove. One non-limiting example depicted in Fig. 1 is an inscription reading "I love my work".
In another embodiment, the protective kitchen glove incorporates different colors and inscriptions on the dorsal side of the glove. As can be seen in Fig. 2, these inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist, back of the hand, thumb cavity, and finger cavities of the glove. One non-limiting example depicted in Fig. 2 is an inscription [105] reading "I'm proud". In one embodiment, the kitchen glove includes drawings [106] on the dorsal side of the glove. These drawings may be, but are not limited to, paintings resembling finger nail polish on the ends of one or more finger/thumb cavities.
The examples below are intended to further illustrate the protective kitchen gloves, and are not intended to limit the scope of the claims.
EXAMPLE 1
Palmar Side of a Protective Kitchen Glove The ultra-high molecular weight polyethylene kitchen glove is comprised of different components. Fig. 1 shows an example of the palmar side of a right-handed glove composed primarily of ultra-high molecular weight polyethylene. The depicted kitchen glove contains a conductive silicone material [101] on the thumb and/or pointer finger pad, which enables a wearer to operate a device using a touch screen. The glove also includes anti-slipping grips [102] on the palm, finger, and thumb cavities in the form of fibers, to provide friction when gripping an object. Spherical rubber scrubbers [103], located on a finger pad, and rubber bristles [104] on the thin outer region of a palm, extending from the pinky to the wrist are also incorporated onto the kitchen glove. Lastly, the kitchen glove depicted in Fig. 1 incorporates different colors and inscriptions [105]. The silk inner lining is not depicted.
EXAMPLE 2
As can be seen in Fig. 2, the protective kitchen glove contains different colors and inscriptions on the dorsal side of the glove. These inscriptions may be, but are not limited to, inscriptions in the form of text or patterns [105] on the wrist, back of the hand, thumb cavity, and finger cavities of the glove. The kitchen glove also includes drawings [106] on the dorsal side of the glove in the form of paintings resembling finger nail polish on the ends of the thumb and finger cavities.

Claims

Claim 1 : A protective kitchen glove, comprising:
an ultra-high molecular weight polyethylene base material that fully covers palmer and dorsal surfaces of a human hand comprising four fingers cavities, a thumb cavity, a palm, a back of a hand, and a wrist;
a textured region located on the outer surface of the glove covering fingerprint pads of a thumb and index finger comprising a conductive silicone material;
a plurality of textured anti-slipping grips on an outer surface of the palmer side of the glove;
a silk material lining the inner cavity of the glove so as to make contact with the surface of skin when the glove is worn;
a plurality of bristles located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand from the wrist to the pinky, in parallel to an arm;
a plurality of spherical scrubbers located on a plurality of fingerprint pads on the outer surface of the glove.
Claim 2: The protective kitchen glove of claim 1, wherein the thumb cavity, textured silicone regions, textured rubber grips, rubber bristles, and spherical rubber scrubbers are oriented for a left hand or a right hand.
Claim 3 : The protective kitchen glove of claim 1, wherein the textured silicone material comprises arched friction ridges resembling a human finger print.
Claim 4: The protective kitchen glove of claim 1, wherein the anti-slipping grips comprise a plurality of rubber fibers oriented orthogonal to the finger cavities. Claim 5: The protective kitchen glove of claim 4, wherein the rubber fibers oriented orthogonal to the finger cavities are spread over the surface of the palm of the glove, ranging vertically from the finger cavities to the wrist, and horizontally from the thumb cavity to an outer part of the hand.
Claim 6: The protective kitchen glove of claim 5, wherein the rubber fibers are evenly distributed over the surface of the palm.
Claim 7: The protective kitchen glove of claim 4, wherein the rubber fibers oriented orthogonal to the finger cavities are located on the palmar side of the finger and thumb cavities.
Claim 8: The protective kitchen glove of claim 7, wherein the rubber fibers are evenly distributed over the surface of the finger and thumb cavities.
Claim 9: The protective kitchen glove of claim 1, wherein the silk material lining the inner cavity of the glove fully encloses the fingers, the thumb, the palm, the back of the hand, and the wrist.
Claim 10: The protective kitchen glove of claim 1 , wherein the bristles comprise a rubber material, and are located on the outer surface of the glove, opposite of the thumb on a thin portion of the hand, ranging vertically from the pinky to the wrist. Claim 1 1 : The protective kitchen glove of claim 1 , wherein the spherical scrubbers comprise a rubber material, and are located on the outer surface of the glove, on the fingerprint pad region of a middle finger, a ring finger, or both.
Claim 12: The protective kitchen glove of claim 1 1 , wherein the rubber spherical scrubbers are evenly distributed over the fingerprint pad surface.
Claim 13 : The protective kitchen glove of claim 1 , wherein the kitchen glove safeguards the hand and fingers of a wearer from cuts, burns, moisture, and electrical shock while performing kitchen activities.
Claim 14: The protective kitchen glove of claim 1, wherein the kitchen glove enables a wearer to operate an electronic device, while performing kitchen activities.
PCT/IB2015/000083 2015-01-28 2015-01-28 Protective kitchen gloves using ultra-high molecular weight polyethylene WO2016120654A1 (en)

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