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Glove Information
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Gloves
Topics include leather types, glove construction, and glove types, including different types of gloves for chemical protection.

Leather Types
Cow — Cowhide leather is the most commonly used leather within the glove industry due to its abundance. The advantages include comfort, durability, excellent abrasion resistance, and breathability.
Pig — Pigskin affords the greatest breathability due to the porous texture of this hide. Additionally, pigskin tends to become softer with use and withstands moisture without stiffening. When laundered, this leather will return more to its natural soft texture than other leathers.
Goat — Independent tests have proven that grain goatskin is twice as durable as cow grain and pig grain leather. The natural lanolin produced by goats helps to create the softest, most abrasion-resistant leather. This leather is highly recommended for applications requiring tactile sensitivity.
Deer –– Known to be one of natures most luxurious, softest leathers, providing all day comfort and sensitivity to touch.

Glove Construction
Gunn Cut
Features – Seamless on back. The palm side of the middle two fingers is a separate glove pattern and is sewn to the palm at the base of the middle two fingers. In full leather and leather palm styles, the seam is reinforced with a welt that gives additional resistance to wear in this critical area.
Benefits – Seam in natural hand crease allows flexibility; seamless back increases comfort. Finger seams away from the palm increase gloves’ durability and wear life.
Clute Cut
Features – Seamless palm made from a continuous piece of leather. Back of glove has parallel seams. Finger side seams are toward palm side of glove.
Benefits – Provides a roomy fit. Seamless palm means greater ease of movement and comfortable gripping. Primarily used in fabric gloves and lightweight leathers.


Welting
A thin piece of leather sewn into a seam towards the outside of the glove to protect seams from abrasions. Protects seam stitching on welding gloves from sparks reducing burn-through.

Grain — Grain leather is the smooth external side of the hide. Grain leather provides durability and dexterity.

Split — Split leather is the rougher internal side of the hide. The different types of split are side, shoulder, or belly split.
Side Split — Side split comes from the rib area of the animal. This part of the leather is the most durable and provides the greatest protection because of its greater density of fibers.
Shoulder Split — Shoulder split is more economical than side split, but less durable. The additional movement of the animal in this shoulder area creates less fibers and a more visible texture difference.
Belly Split — Belly split leather is the most economical; however it has the least consistency of texture and appearance

Cuff Materials
Leather — For longer wear and heavy-duty applications (launderable).
Denim — Economical single-fabric material (launderable).
Duck — Single ply of cotton material (launderable).
Plasticized — Waterproof polyethylene layer laminated between two pieces of fabric (launderable).
Rubberized — Two layers of fabric with a rubber material in between. Adds water resistance in addition to heavier wear resistance.
Starched — Two layers of fabric laminated, then starched (launderable).



Hot Mill and Terry Cloth Gloves
Hot Mills and Double Palms offer comfort, insulation and superior heat protection. Hot Mill Gloves can be used in many applications including tire manufacturing, plastics extrusion, heat treating and metals industries. Double Palm Gloves are best for general purpose work or moderate heat applications. Double Palms provide two layers of proection in the palm, thumb and index finger.

Nap-In vs. Nap-Out
All cotton fabric used in the production of Hot Mills is napped. Napping is the pulling-up of fibers from the base weave resulting in a fuzzy, raised surface. Nap-In or Nap-Out refers to the direction of the napping, either facing inside or outside. Although the fabrics are equally popular, Nap-In fabric outwears Nap-Out by providing greater abrasion resistance. Nap-Out styles are normally used in hot applications. Nap-In styles are normally used when abrasion is a concern.

Gloves for Chemical Protection
There are as many options, when choosing gloves with chemical resistant properties, as there are chemicals in use in the workplace. Permeation and Degredation are two ways of measuring the protective capabilities of a material. It’s important to choose the right glove to protect against the specific chemicals present in each application.

Permeation is the process in which a chemical can pass through protective film without going through pinholes, pores, or other visible openings. The chemical molecules move between the molecules of the material and make their way to the other side of the film. Breakthrough is calculated in minutes and represents the time it takes for the chemical to first be detected on the other side of the film. Rate is a measurement of the highest flow rate for the permeating chemical during the course of a six hour test.

Degredation is a reduction of one or more physical properties of a glove due to contact with a chemical. Certain glove materials may become hard, stiff, and brittle or they may become softer, weaker, and swell to several times their original size. If significant degredation occurs, a gloves permeation resistance is quickly impaired, but degredation and permeation do not always correlate.

Natural Rubber Latex gloves resist bases, acids, alcohols, and diluted aqueous solutions of most types of chemicals. They also offer fair protection against undiluted ketones and aldehydes. In addition, natural rubber latex provides some resistance to cuts. There have been some reports of allergic reactions to the proteins in natural rubber. In cases of latex sensitivity, nitrile, neoprene and PVC may be good alternatives.

The synthetic rubber compound, Nitrile, offers good protection against bases, oils, many solvents and esters, grease and animal fats. Nitrile gloves are not recommended for ketones and some organic solvents. They do provide, however, excellent resistance to snags, punctures, abrasions, and cuts.

Neoprene (polychloroprene) is another synthetic rubber compound. Neoprene gloves protect against a very broad range of oils, acids, caustics, and solvents. Neoprene offers less resistance to snags, punctures, abrasions, and cuts than nitrile or natural rubber.

Polyvinyl Alcohol (PVA) is highly resistant to aliphatics, aromatics, chlorinated solvents, esters, and most ketones. PVA gloves also resist snags, punctures, abrasions, and cuts, but quickly break down when exposed to water and light alcohols.

Polyvinyl Chloride (PVC) gloves provide protection against many acids, caustics, bases, and alcohols. PVC is not recommended for ketones or many other types of solvents. It generally offers good abrasion and cut resistance, but some glove styles are susceptible to cuts. Polyethylene offers economical protection from mild chemicals, oils, fats, punctures, and abrasions. Component materials of polyethylene gloves comply with FDA regulations for food contact.

Polyurethane (PUR) gloves resist bases, acids, alcohols, grease, and animal fats. They’re not recommended for most types of organic solvents. Polyurethane provides excellent snag, puncture, abrasion, and cut resistance. In the form of a foam, it can be highly effective as an insulating liner inside some types of supported gloves.

Butyl rubber gloves offer superior resistance to highly corrosive acids, ketones, and esters. They protect well against bases, alcohols, amines and amides, glycol ethers, nitrocompounds, and aldehydes. Butyl is not recommended for halogen compounds, aliphatic or aromatic hydrocarbons, or applications that require the physical strength of natural rubber. This synthetic rubber provides the highest permeation resistance to gases and water vapors of any protective material used to make gloves.

DuPont Viton® is the most chemical resistant of all the rubbers and protects against toxic and highly corrosive chemicals. Viton® gloves protect against polychlorinated biphenyls (PCB’s), polychlorinated triphenyls, benzene and aniline. A flouroelastomer, Viton® provides excellent resistance to aromatic and aliphatic hydrocarbons as well as chlorinated solvents. It is not recommended for ketones.

Heavyweight Viton® is required for protection from physical hazards. It is primarily used when the life span of other gloves is too short to be economical.

Cut Resistance Defined
Cut resistance is a function of a glove's material composition and thickness. Increased cut protection can be achieved with:
• Increased material weight; i.e., ounces per square yard.
• Use of high performance materials such as Spectra®, KEVLAR®, Vectran Dyneema®etc.
• Use of composite yarns made with varying combinations of stainless steel, fiberglass, synthetic yarns and high performance yarns.

Gloves are extremely cut-resistant, but not cut-proof. Do not subject these gloves to high-speed or highly serrated blades. Always disconnect power before cleaning or removing slicer blades.
Always remember: There is no such thing as a cut-proof glove.