Cut-resistant fabrics are those that can withstand slashing or cutting action.These textile products protect the wearer from accidents and occupational hazards. Metallic materials, Para aramid, high-modulus polyethylene materials and high density structure materials are used in the manufacturing of cut resistant textiles. Cut-resistant fabrics have various applications in mechanical protection for the wearer. They are used for protective wear in aprons and gloves for chefs, military use, the construction industry, forest use in trimming trees, etc
Cut resistance
Cut resistance has many dimensions such as force, direction, sharpness of the blade, length of the cut and flexibility of object. Different products should be evaluated in relation to the expected type of cut risk and environment that they are expected to face.
Cut-resistant gloves
In
personal protective equipment
Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, elec ...
(PPE), cut-resistant gloves are those designed to protect the wearer's hands from cuts while working with sharp tools. They can be divided into metal mesh
gloves
A glove is a garment covering the hand. Gloves usually have separate sheaths or openings for each finger and the thumb.
If there is an opening but no (or a short) covering sheath for each finger they are called fingerless gloves. Fingerless glov ...
, cut-and-sewn, and seamless knitted gloves.
Metal mesh gloves are a form of
chainmail
Chain mail (properly called mail or maille but usually called chain mail or chainmail) is a type of armour consisting of small metal rings linked together in a pattern to form a mesh. It was in common military use between the 3rd century BC and ...
, and are made of rings of
stainless steel
Stainless steel is an alloy of iron that is resistant to rusting and corrosion. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel's corros ...
. They are typically used in food applications.
Cut-and-sewn gloves can be made using a cut-resistant material or by using conventional materials with full or palm lining of cut-resistant materials. The materials are cut to shape and sewn into a glove.
Seamless knitted gloves are knitted in one piece by a flat knitting machine. The cut protection is provided by high performance materials such as
''para''-aramid (
Twaron
Twaron (a brand name of Teijin Aramid) is a para-aramid. It is a heat-resistant and strong synthetic fibre developed in the early 1970s by the Dutch company Akzo Nobel's division Enka BV, later Akzo Industrial Fibers. The research name of the para ...
,
Kevlar
Kevlar (para-aramid) is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, the high-strength material was first used commercially in the early 1970s a ...
), high performance polyethylene (HPPE) (
Dyneema
Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. T ...
,
Spectra), special
polyvinyl acetate
Polyvinyl acetate (PVA, PVAc, poly(ethenyl ethanoate)), commonly known as wood glue, PVA glue, white glue, carpenter's glue, school glue, or Elmer's glue in the US, is a widely available adhesive used for porous materials like wood, paper, and ...
(PVA) yarns (SupraBlock) or
steel wire and
fiberglass
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth ...
yarns. Knitting machines are commonly classified using gauge, and can range from 7 gauge all the way through 18 and 21 gauge. The gloves are often coated with solid or foamed
latex
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well.
In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms ...
,
nitrile
In organic chemistry, a nitrile is any organic compound that has a functional group. The prefix ''cyano-'' is used interchangeably with the term ''nitrile'' in industrial literature. Nitriles are found in many useful compounds, including met ...
or
polyurethane.
SuperFabric
SuperFabric is a branded cut-resistant fabric.
Standards
One method of evaluating cut resistance is the EN 388:2016 standard, or "coup" test. EN388 uses a circular rotating blade of 40mm diameter that rotates against the direction of movement. The blade is moving back and forth over a small distance of about 50mm with a load of 5N. The numbers of cut cycles are recorded and compared to a cotton control fabric. A cut resistance index is calculated between "0" and "5" depending on the average number of cycles prior to break-through failure: "0" means 0 to 1.2 cycles; "1" means >1.2 to 2.5 cycles; "2" means >2.5 to 5.0 cycles; "3" means >5.0 to 10.0 cycles; "4" means >10.0 to 20.0 cycles; and "5" means >20.0 cycles.
EN 388 was updated in 2016, and one significant change is the introduction of ISO 13997:1999. EN 388:2016 incorporates a letter A-F to indicate the cut resistance of A<2N, B<5N, C<10N, D<15N, E<22N and F<30N. This is more in line with the new North American standard of ANSI/ISEA 105-2016 that is using a system of A1-A9 cut levels.
ASTM F2992-15 is similar to ISO 13997:1999 in that the test is carried out on a tomodynamometer (or TDM). A
cutting edge (usually a razor blade) under a specified load is moved across a sample material. When the blade cuts through the material, the cut-through distance is calculated. This test is repeated with different loads to determine the calculated cutting load for the sample material. The result is compared to the levels outlined in ANSI/ISEA 105-2016, and the ANSI Cut Level is determined.
See also
*
Puncture resistance
Puncture resistance denotes the relative ability of a material or object to inhibit the intrusion of a foreign object. This is defined by a test method, regulation, or technical specification. It can be measured in several ways ranging from a s ...
*
Ultra-high-molecular-weight polyethylene
Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. T ...
References
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External links
Video on Cut Resistant Gloves and what the EN388 Rating MeansUpdated ANSI StandardsUpdated EN 388 StandardEN388 Expert GuideReview on Cut Resistant Gloves
Gloves
Protective gear