Cut Resistance Gloves

Cuts and lacerations are responsible for nearly 30% of lost-time work injuries in North America, the majority of which are to the hands. Wearing the correct glove is the most critical factor in proper hand protection. It’s even more important to understand cut resistant gloves and the characteristics they hold. Cut-resistant gloves come in various fabrics offering different level of cut resistance. It’s important to consider the requirements of a particular application when choosing a glove material.  Transforming Technologies specializes in anti-static gloves which improves the quality of products or solves a process issue.

What Are Cut-Resistant Gloves?

Cut Resistant Gloves can be divided into three categories based on the materials they are made from: metal mesh gloves, cut-and-sewn, and seamless knitted gloves.

Metal mesh gloves are a form of chainmail and are made of rings of stainless steel.

Cut-and-sewn gloves can be made using only 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 and the cut protection is provided by high performance materials such as Para aramid (Twaron, Kevlar), Ultra High Molecular Weight Polyethylene (UHMWPE), special PVA yarns (SupraBlock) or steelfibre and fibreglass yarns. The gloves are usually coated with solid or foamed Latex, Nitrile or Polyurethane.

Which Cut Resistant Glove Is Right For Me?

Not all cut-resistant gloves are created equal and that’s a good thing, depending on the severity of the hazards that you’re facing. The best rated glove is the one that protects against the hazards you face. A worker who uses a box cutter once a day doesn’t need the same protection as someone who works in metal stamping eight hours a day.

Using a glove designed for heavy-duty cut protection for a light-duty application has a snowballing effect: If a worker has less dexterity in the glove, they won’t be able to do their job right. If they can’t do their job right, they won’t wear the glove and then compliance takes a hit. Then the risk of hand injury skyrockets!

How Are Cut-Resistant Gloves Rated:

There are two common standards used for measuring the cut-resistant properties of gloves. One used primarily in North America and the other is used in Europe and Asia.

North American Standard (ANSI/ISEA 105-2016):  The protection level is given by a number between 1 and 9, where 9 indicates the highest cut protection.All gloves are tested on a TDM1000 machine which provides uniform testing.

Transforming Technologies supplies a Cut Level 2 ESD Gloves.

1. The glove sample is placed on a conductive strip and loaded onto the TDM-100. When the metal blade touches the metal strip, the test is terminated.
2. A straight blade is loaded into the machine.
3. Weight is added to serve as force.
4. The blade moves across the fabric.
5. The blade is replaced with a new one to ensure accuracy.
6. The sample is cut five times, each with three different loads.
7. The distance traveled to cause cut through at various forces is recorded.
8. The data is used to determine the load required to cut through the sample.
9. The glove receives a rating based on the above information between A1 and A9, with A1 being the lowest and A9 being the highest level of cut protection.

European Standard (EN 388): The protection level is given by a number between 1 and 5, where 5 indicates the highest cut protection. Until 2016, the Coup Test, as described below, was the only test used under the EN 388 standard. The standard update in 2016 introduced the ISO 13997 concept, which closely relates to the North American standard test.

1. A test sample is taken from the palm of a glove.
2. A rotating circular blade moves back and forth across the test sample until a cut-through is achieved.
3. The test sample is compared to a reference material (usually cloth).
4. The reference material and the test sample are cut alternately until at least five results are achieved.
5. To help account for a loss is sharpness to the blade, the reference material is cut before and after the test sample.
6. The cut resistance is a ratio of the number of cycles needed to cut through the test sample compared with the reference material.

Can You Wash Cut-Resistant Gloves?

The short answer is yes. Laundering and dry cleaning have no significant impact on the protective properties of cut-resistant gloves. Most quality cut-resistant gloves will retain their protective properties even after ten or more washes. It is important that you follow manufacturer instructions when washing cut-resistant gloves.

Frequently Asked Questions:

Q. Do cut-resistant gloves offer good puncture-resistance?

A. No. Many cut resistant gloves are manufactured to protect hands from being slashed by sharp objects like knives/blades. However, they may provide very little or no puncture resistance from a pointed item, such as a needle.

Q. What is the difference between puncture resistance and needle or needlestick resistance?

A. Needles are sharp, beveled cutting instruments designed to pierce the skin. To stop them you need to stop the cutting action by putting something hard in front of them, such as the protective guard plates found in SuperFabric® brand materials. ASTM/EN388 test probes are rounded and tear fabric instead of cutting as it penetrates. This rounded ASTM/EN388 tip functions more to test bust strength whereas the .25G medical needle tests true needle resistance. Various testing bodies throughout the world have acknowledged this deficiency and are adapting standards to meet this. Two examples are the Canadian research organization IRRST and the ASTM F23 Standards committee, who are working together to design a standard that uses the same test procedures as tested herein.

Q. Should cut-resistant gloves be used to protect one from cuts from powered/mechanical equipment like powered saws and drills?

A. Most all manufacturers of cut-resistant gloves will not suggest the use of cut-resistant gloves for protection against powered devices. Gloves are typically tested for use with non-powered blades and sharps only.

The use of a glove with powered equipment could potentially harm an individual. If the moving blade catches the glove, it could result in a person getting pulled into moving machinery. Moving machine parts have the potential for causing severe workplace injuries, such as crushed fingers or hands, amputations, burns, or blindness. Safeguards are essential for protecting workers from these needless and preventable injuries. Any machine part, function, or process that may cause injury must be safeguarded, especially when the operation of a machine or accidental contact with it can injure the operator or others in the vicinity. These hazards must be either eliminated or controlled.

Q. What makes HexArmor products highly cut and puncture resistant?

A. HexArmor® products offer industry leading cut protection through the innovative configuration of SuperFabric® technology which provide resistance to lacerations and slashes like no other material on the market. Typical cut-resistant products are made of high performance yarns such as Kevlar®, Dyneema®, or Spectra®. While blends of these technologies protect users from straight edged cut hazards, they do not offer sufficient protection from variable hazards such as metal burrs, wires, or slivers.

ESD jackets, also commonly known as ESD smocks, ESD lab coats or ESD garments, offer protection from electrostatic fields generated by clothing on the user’s body.  ESD jackets are worn where ever static damage is a concern.  ESD jackets differ from common work garments because they are made with a grid of conductive fibers throughout. The grid creates a “Faraday Cage” effect around the body of the operator that shields charges generated from the operators clothing from damaging ESD sensitive devices. The conductive fibers also lowers the static charge generation of the jacket(also refereed as tribocharging) to a safe level.

ESD Jackets as part of a complete Quality Control Program.

ESD jackets are the most visible sign of ESD protection and any facility that mandates ESD garments demonstrates a commitment ESD protection. ESD jackets are a recommended addition to a program that already includes typical grounding measures, such as wrist straps and heel grounders.  This is because of the potential hazard of the operator’s clothing.  The ESD TR20.20-2008 states: “While a person may be grounded using a wrist strap or other grounding methods, that does not mean that insulative clothing fabrics can dissipate a charge to that person’s skin and then to ground. Personnel clothing usually is electrically separate or isolated from the body.”

How To Choose an ESD Jacket?

A quick search online reveals numerous options for ESD jackets. We have summarized the main considerations when choosing ESD jackets:

ESD Garments come in many shapes and sizes.  Typical distinctions are:

• Fabric Composition
• ESD Properties
• Collar Options
• Sleeve Terminations
• Length
• Color 
• Embroidery

The jackets you choose will most likely depend on style preference but the ESD properties should be the first priority to ensure the jackets will protect against ESD as intended.

ESD Properties
There are three classifications of ESD jackets per ANSI / ESD S20.20: an ESD Garment is defined as either:

• Level 1: Static Control Garment (surface resistivity of < 1 x 10^11 ohms resistance);
• Level 2: Groundable Static Control Garment (surface resistivity of < 1 x 10^9 ohms resistance); or
• Level 3: Groundable Static Control Garment System (surface resistivity of < 3.5 x 10^7 ohms resistance).

ESD jackets are classified by ESD properties (how conductive they are), with level 1 being the lowest and level 3 is highest. Level 1 jackets are typically the lowest cost but because the ESD properties are low they may wear out faster and need to be replaced more often. Level 3 jackets are conductive enough that the fabric can be used as part of the ground path for wrist straps which allows for safe, hands-free grounding. Level 2 is in the middle.

How to Test ESD Properties

There are several ways to test an ESD jacket but for general purposes, a sleeve-to-sleeve measurement is the most important.  This test is used to confirm electrical continuity across garment panels and sleeve components.  At minimum, an ESD jacket must be dissipative (surface resistivity of < 1 x 10^11 ohms resistance).  This test is performed with a Surface Resistance Meter.  The ESD properties should be included in the data sheet for the ESD jacket from the manufacturer. It is always recommended to regularly test your ESD jackets because wear and tear and laundering will effect the ESD properties over time.

Fabric Composition

Fabrics composition will vary by the manufacture but are typically made with a combination of carbon with polyester fabric or a cotton polyester blend.  Commonly, the fabrics are described with a percentage. For example, 88% polyester and 12% carbon.  Your choice of fabric will be determined by operator comfort and ESD performance.  You may choose a lightweight polyester for warmer climates or a cotton polyester blend for cooler climates. 

The amount of carbon in the jacket is important to note because this is the element that makes the jacket “ESD safe”.  The more carbon, the better the anti-static performance.  Lower cost ESD jackets are available with a carbon content of less than 5%, but they may not perform well or last as long as jackets with higher carbon content.

Collar Options
Collar options typically include Lapel, V-Neck or Military style.  The type of collar you choose will be based on user comfort and sensitivity of the application.  The various collars allow more or less clothing to be exposed to your environment. V-Neck collars are the most open and may be cooler to wear. Military Collars covers the most clothing, but may more uncomfortable to wear.  Lapel collars are in between the two and are the most commonly used collar.

Sleeve Terminations
ESD jackets have either a Snap Cuff or an ESD Knit Cuff. The snap cuff includes three snap that adjusts for a proper fit and are typically cheaper. The three snap cuff is ideal when you already have wrist-straps, or in cases when wearers find the cuffs a little too snug. A wrist strap can be snapped to the garment sleeve and cord is attached at the hip pocket to ground both the person and the jacket.

An ESD Knit Cuff is very similar to the cuff on the end of a sweatshirt and allows for hands free grounding. ESD Knit cuffs form a contact path around both of the wearer’s wrists. The garment and wearer can then both be grounded by attaching a ground cord to the 4mm stainless steel snaps on the hip pocket.

Short sleeve jackets are also available from some manufacturers.

Length
ESD jackets come in three lengths: waist length, 3/4ths and full length.  The length you choose depends on the sensitivity of the application and the comfort of the wearer.  Waist length jackets leaves the most clothing exposed but may be cooler. Full length jackets cover the most clothing by going down to about the knees and are sometimes referred to as lab coats.  3/4ths length jackets come down to mid-thigh and are between the waist length and full length.

Colors
ESD Jackets come in many colors, with blue the most common. The color has nothing to do with performance and is only preference by the company using them. Many companies will color code their employees with their ESD jackets. For example, employees may wear blue, management wears black and visitors wear white.  High-Visibility jackets are available for safety reasons. Color options vary by manufacturer, and by fabric. Jackets may also be died to match company colors but will have a high minimum order quantity.  

Embroidery of ESD jackets

Many companies choose to embroidery their company logo or employee name onto their ESD jackets.  Sublimations, screen printing and patches are also ways to add logos or names.

Conclusion

ESD Jackets are an important part of an ESD program. There are many styles to choose from, but ESD properties should be the most important factor in choosing an ESD jacket. After you ensure your jacket will protect your application, you have your choice of fabrics, collars, sleeves, and colors.

View Transforming Technologies’ line of ESD Jackets.

Need help choosing an ESD jacket? Call Transforming Technologies at 419-841-9552. Or email info@transforming-technologies.com or fill out our contact form below.

The conveyor belt is an indispensable part of the automatic transportation equipment. But the conveyor belt can be a major generator static electricity that can cause numerous problems, from static shocks to employees to catastrophic damage to components. The cause of static is friction, and on belt conveyors, the belt surface is continually rubbing the pulley surface, generating static electricity. As the conveyor continues to operate, the static charge will continue to accumulate and increase unless it is bled off (or discharged) in some manner.  Conveyor and assembly trays can also create a static charge and shock employees.

Anti-static conveyor equipment exists, so when choosing the conveyor belt, pay special attention to whether the belt has anti-static characteristics.  A surface resistance meter can be used to measure the anti-static properties of a conveyor belt. But if your equipment is not anti-static, then you must eliminate static in other ways.  The first step in eliminating static is to measure it.  If you can feel the static charge or receive shocks, then the charge is already way to high and needs to be addressed.  Human feel static at 2000 volts, but components can be damaged with as little as 100 volts.  A static field meter can be used to measure the static charge on your conveyor.

Drag chains can be a do-it-yourself solution to drain a charge, but they are not always practical or effective enough.  Anti-static ionizers are the most effective method of eliminating static on conveyors. Ionizers blow specialized air that eliminates static charges.  They are designed to be mounted overhead, or in targeted areas and can be effective without interfering with the movement of the conveyor or components. Ion bars are excellent for conveyors because they can cover wide areas with a relatively small footprint. A three fan overhead ionizer is also an effective ionizer for conveyors. If the target area for ionization is small, ionizing nozzles can be very effective.  They provide a targeted stream of ionized air that can even be activated automatically with a photoelectric eye.

Placement:
This will vary by application.  Mount ionizers at friction points in your process and the locations of the biggest static issue. Mount the ionizer as close to the problem area as possible, but not too close that the ionizer does not have enough time to do its job.  If your employees are getting shocked, you will want to install the ionizer just prior to the employee exposure.

Conclusion:

Conveyors generate static due to friction, which can cause numerous problems. Anti-static ionizers are a very effective tool to remove the static charge.

View all of Transforming Technologies Anti-Static ESD Ionizers here.

 Professional ESD Services

Transforming Technologies provides comprehensive knowledge of electrostatic issues, effective solution-oriented products and outstanding, friendly service.

 Because customer needs periodically include requirements for consultation, training, auditing or verification, we offer Professional ESD Services such as trainings or audits.

Please contact us for more information on our professional services and insure that your static control program is as effective and efficient as possible.

Contact us today for more information on ESD professional services

 

3719 King Road
Toledo, OH 43617

(419)841-9552
(419)841-3241 fax
info@transforming-technologies.com

Introducing Transforming Technologies ESD Mat Selection Guide

Whether it be an ESD Table Mat or an ESD Floor Mat, making the best choice can be difficult. With the help of our ESD Mat Selection Guides, we have condensed all the selection criteria such as material construction, resistance ranges, surface, color, style, or size into two separate charts for your convenience.

Table Mat Selection Guide

ESD Table Mat Selection Guide

Bring your ESD workstation to its optimal level by complementing your table mat surface with any of our ionizers, wristband sets, or constant monitors.

Floor Mat Selection Guide

ESD Floor Mat Selection Guide

All of our floor mats may be enhanced by a person(s) use of any of our heel grounders to ensure maximum groundability.

For price and availability on table and/or floor matting, or for information on any products in Transforming Technologies full line of ESD products, please call 419-841-9552 or email info@transforming-technologies.com.

ESD Garments and Static Control

ESD jackets, also commonly known as ESD smocks, ESD lab coats or ESD garments, offer protection from electrostatic fields generated by clothing on the user’s body. ESD jackets are worn where ever static damage is a concern. ESD jackets are designed to be antistatic and low tribocharging because they constructed out of polyester or cotton (or a blend of both) impregnated with a grid of woven conductive fibers. The grid creates a “Faraday Cage” effect around the body of the operator that shields charges generated from the operators clothing from damaging ESD sensitive devices.

ESD Jackets as part of a complete ESD program.

ESD jackets are the most visible sign of ESD protection and facilities that mandate ESD garments demonstrates a commitment ESD protection. ESD jackets are a recommended addition to a program that already includes typical grounding measures, such as wrist straps and heel grounders. This is because of the potential hazard of the operator’s clothing. The ESD TR20.20-2008 states: “While a person may be grounded using a wrist strap or other grounding methods, that does not mean that insulative clothing fabrics can dissipate a charge to that person’s skin and then to ground. Personnel clothing usually is electrically separate or isolated from the body.”

Groundable Static Control Garments Systems

ESD jackets can also be used to ground personal. If the fabric of the jacket is conductive enough, a person can be grounded through a jacket if it is connected to ground with a coil cord. This is called a “Groundable Static Control Garment System”. This jackets must “provide a resistance of less than 35 megohms from the person to the groundable point of the garment.”[ESD TR20.20-2008 section 5.3.13 Garments]

Styles of ESD Garments

ESD Garments come in many shapes and sizes. Typical distinctions are collar type, fabric composition, sleeve terminations and lengths. Collar options typically include lapel, v-neck or military style. Sleeve terminations are either a three snap cuff that adjusts for a proper fit or an ESD cuff that allows for hands free grounding. There are three lengths of jackets, waist length, 3/4ths and full length. Fabrics composition will vary by manufacture but are typically a polyester fabric or a cotton polyester blend with carbon. Your choice of fabric will be determined by operator comfort and ESD performance. You may choose a lightweight polyester for warmer climates or a cotton polyester blend for cooler climates.

Cleaning of ESD lab coats

The proper method to clean a lab coat is to wash the garment in cool or warm water, tumble dry with low heat or hang dry. Do not bleach your ESD lab coats! Make sure you only use non-ionic softeners and detergents when laundering.

View Transforming Technologies’s line of ESD Jackets.

Transforming Technologies is proud to announce the addition of the ComfortTREAD Diamond Plate Anti-Fatigue Runner to our line of ESD Products.

ComfortTREAD diamond-plate ESD anti-fatigue mats keep your workers comfortable and your ESD sensitive equipment safe. The 100% conductive rubber mats are embossed with raised diamond-plate treads for superior traction and feature wide beveled borders to promote safety. A fully molded honeycombed cell design absorbs shock and cushions the feet from constant contact with hard surfaces. The mat will not separate, bubble-up, ripple, tear, compress or lose resiliency. Available in interlocking sections which can be quickly dismantled to make moving and cleaning easy. Two FM9E connected creates a 2.5′ x5′ workstation mat or you can pair the two FM9E with any number of FM9C pieces to create a runner in 30” increments. For use with ESD footwear such as heel grounders and sole grounders.

Meets or exceeds requirements of ANSI ESD-S20.20 and the recommendations of ESD STM7.1

Benefits & Features of the Transforming Technologies ComfortTREAD ESD Matting:

• 100% conductive rubber: 10^3-10^5
• Diamond-plate treads for superior traction
• Interlocking sections create a 5’ long work-station mat or runners in 30” increments.
• Beveled borders for safety

Specifications of the Transforming Technologies conductive ComfortTREAD ESD Matting:

• Point-to-point resistance: 10e3-10e5
• Inlocking mats for floor runners
• Meet or exceeds requirements of ANSI ESD-S20.20 and the recommendations of ESD STM7.1

ComfortTREAD Anti-Fatigue Interlocking Piece

ComfortTREAD Anti-Fatigue End Piece

For price and availability on the FM9 ComfortTREAD Anti-Fatigue Floor Runners or for information on any products in Transforming Technologies full line of ESD products, please call 419-841-9552 or email info@transforming-technologies.com.

Ionizers remove static from surfaces that cannot be grounded. You will find two common types: AC or Alternating Current and DC or Direct Current. This presentation reviews the pros and cons of each technology and will help you decide which ionizer will work best for your application.

For more information, contact Transforming Technologies 419-841-9552.