What Factors to Pay Attention to when Determining the Tearing Strength?

1.The sample should be cut according to the size in the following chart.

Project	Trapezoid Method	Single Tongue Method	Hammer Drop Method
Sample Length（mm）	≥200 (approximately 150）	≥200	75 （approximately 63）
Sample Width（mm）	50（After repairing the edge yarn）	75	100
Cut Length（mm）	10	80	20
Tear Length（mm）	10	75	13
Holding Distance（mm）	100	75	＜2
Stretching Rate（mm）	200	200（Hair Length 50）	Hammer Drop

2. The test direction refers to the direction in which the yarn is torn, ie, the direction perpendicular to the incision, such as the warp yarns of the warp sample in the single tongue tear in the width direction, and the trapezoid method in the opposite direction.

3.The cut should be cut along the warp or weft direction, otherwise the tear may deviate from the cut during tearing.

4.When the specimen is clamped, the yarn at the incision can not be stressed.

5. Measurement observed in the observation of the tear of the specimen, such as the slit deviate from the incision extension line should be examined further. It should be removed and added to the results.

6.Drop the weight of the bezel in order to determine the pressure, full, not with the fan hem friction.

Our team come back from BIOT fair

From 12th to 15th,our sales team went to Moscow,Russia to attend the BIOT 2017 Safety Exhibition. It is an annually fair which attracts many industries and companies.

 

This year we have developed many new products according to changing working circumstances and creat special protection for people who work in hazardous environment.

 

During this exhibition we have welcomed many customers from Russina and all over the world.Also we meet our old customers as our good friends there.We have a nice meeting and conversation.

 

our relationship with old customers are getting deeper and deeper,also we meet many new customers and make friends with them.We have been researching and developing Russian market for years and now many products are hot sale in Russia,Ease Europe and Middle Asia.Hope to establish business with you in the future!

Which Fabrics Are Most Fire Resistant?

Although no fabric is fireproof, certain textiles resist fire better than other fabrics. Fire-resistant fabric, also known as flame-retardant fabric, is so designated based on the time it takes for the fabric to burn. Fire-resistant fabric may be naturally fire resistant because of its natural fiber weave, or treated with a fire-resistant chemical to resist heat and flames.

Wool
Wool is generally considered the most flame-resistant natural fiber, because it is difficult to ignite, and flames are often extinguished in the fibers. Natural fibers, such as silk, cotton and wool, are more susceptible to fire than manufactured fibers, but cloth manufacturing techniques can improve their fire resistance. Natural fibers can be treated with a chemical solution that improves flame resistance. When a material made of natural fibers is constructed with a tight weave, the material provides improved flame resistance.

Acrylic, Polyester and Nylon
Synthetic acrylic, polyester and nylon fabrics can be hazardous when they burn, because the materials can melt and cause burns on the skin when used as clothing fabrics. Despite this danger, these synthetic fabrics are considered fire-resistant fabrics, because they resist ignition at much higher temperatures than natural fibers. Synthetic materials can also be treated with fire-resistant chemicals to increase their ability to withstand high temperatures.

Kevlar and Nomex
Strong, heat-resistant aramid fibers are used in the brand-name fabrics Kevlar and Nomex. The fabrics are well known for their uses in body armor and bulletproof vests worn by members of law enforcement. Kevlar and similarly manufactured fabrics are inherently fire resistant, more than any other type of fabric, and they are often used to make heat-resistant gloves for welders and glass blowers and protective clothing for firefighters.

Sun protective clothing

The aim of sun protective clothing is to reduce a person's UVR exposure.

Many types of radiation emitted by the sun, mainly visible (light) and infrared (heat) reach the earth's surface. Ultraviolet radiation (UVR) is also present but we cannot see it or feel it. Ozone in the atmosphere absorbs much of the dangerous UVR before it reaches the ground but we can still receive enough to cause sunburn and more serious health problems. Exposure to UVR can cause not only sunburn but also lasting skin damage. This may result in premature skin ageing and skin cancer. UVR can also cause eye disorders such as cataracts.

1.UPF of a fabric
Different fabrics have different UVR-absorbing properties.

Less UVR passes through tightly woven or knitted fabrics.

• Darker colours usually block more UVR.
• Heavier weight fabrics usually block more UVR than light fabrics of the same type.
• Garments that are overstretched, wet or worn out may have reduced UVR protection.

The UPF rating on many garments indicates clearly how good the fabric is at blocking UVR but the design of the garment also needs to be considered. Shirts with long sleeves and high collars, hats that shade the face and protect the back of the neck and ears are most effective. Loose fitting clothing is usually more protective than tight fitting clothing.

2. UPF Ratings and Protection Categories

UPF Rating	Protection Category	%UVR Blodcked
15-24	Good	93.3-95.9
25-39	Very Good	96.0-97.4
40 and over	Excellent	97.5 and more

The Standard states that the highest UPF rating garments may be labelled with is 50. Garments made from fabrics with ratings higher than 50 are labelled as UPF 50+.

Sun-protective clothing offers another way to protect skin from the harmful effects of the sun. Sun-protective fabrics differ from typical summer fabrics in several ways: they typically have a tighter weave or knit and are usually darker in color. Sun-protective clothes have a label listing the garment's Ultraviolet Protection Factor (UPF) value, that is, the level of protection the garment provides from the sun's ultraviolet (UV) rays. The higher the UPF, the higher the protection from the sun's UV rays. The UPF rating indicates how much of the sun's UV radiation is absorbed by the fabric. For example, a fabric with a UPF rating of 20 only allows 1/20th of the sun's UV radiation to pass through it. This means that this fabric will reduce your skin's UV radiation exposure by 20 times where it's protected by the fabric. Everything above UPF 50 may be labeled UPF 50+; however, these garments may not offer substantially more protection than those with a UPF of 50. Also, a garment shouldn't be labeled "sun-protective" or "UV-protective" if its UPF is less than 15. Sun-protective clothing may lose its effectiveness if it's too tight or stretched out, damp or wet, and if it has been washed or worn repeatedly.

3. Protection from UV radiation

Avoid going outdoors in the middle of the day (10am to 2pm) when the sun is highest (11am to 3pm during daylight saving). This practice can dramatically reduce your UVR exposure.

• When outdoors, choose shaded areas where you cannot directly see the sun or the open sky.
• Wear well designed clothing that covers the arms and legs as well as the body.
• Wear a broad-brimmed hat which shades the face, ears and back of the neck.
• Wear sunglasses when outdoors.
• Apply at least SPF 15 sunscreen to all areas of the body that are not covered by clothing. 
• Reapply sunscreen every two hours and after swimming or activities causing heavy perspiration as sunscreens do wear off.
• Young children do not understand the dangers of UVR. Protect them with shade, suitable clothing, hats, sunglasses, and sunscreen. Well designed sun protective clothing is available in children's sizes.

Drotex antistatic fabric and clothing

According to international researches about 70% of damages of electronic components are caused by impropriate personnel protection!

Human is primary charges generator. Therefore, the main method of protection against electrostatic discharges becomes antistatic clothing. Very widespread mistake is belief about efficient ESD protection by using just wrist strap. While all international standards, including EN 61340-5-1, stresses necessity of using special clothing directly at workplace and in all EPA zones.

Use of antistatic clothing is one of most effective methods of protection against electrostatic discharges. We offer you antistatic clothing of our own production. High quality and sharp price. Besides standard products on clients requests we generate almost any project, in given colour and cut.

Looking forward to your contact about our ESD fabric and clothing.

Industries which need flame resistant protective clothing

OIL AND GAS DRILLING

In the oil and gas industry, workers are often in the presence of flammable gas and vapors, putting them risk at risk for exposure to flash fires. If a flash fire does occur, flame-resistant (FR) workwear can greatly reduce burn injuries and improve chances of survival.

OIL AND GAS REFINING

Due to the nature of their work, employees in the oil and gas refining industry may be exposed to flame and thermal hazards. Anywhere there is the potential for the release of a fuel, such as flammable gas or vapors, there is the possibility of a flash fire, and flame-resistant (FR) clothing can offer valuable protection.

ELECTRICAL UTILITIES

The electrical utilities industry encompasses anyone that works in electric power transmission, distribution or generation. All of these workers face the possibility of exposure to arc flash, and those involved in electricity generation may also be exposed to flash fire.

LABORATORIES

By nature, laboratories are home to numerous fire hazards and, even when proper precautions are taken, accidents can and do happen. When regular clothing or lab coats that aren’t flame resistant (FR) are exposed to flame, they can ignite and burn, greatly increasing the wearer’s risk of injury. Plus, the wide variety of liquid chemicals present in labs poses a significant threat of chemical splash burns to laboratory workers.

If an accident does occur, wearing FR and chemical-splash protective lab coats provides the best chance for minimizing burn injuries — as well as avoiding lawsuits, increased insurance costs, reputation damage and loss of valuable research funding.

WELDING & WELDING CLOTHING

The welding industry utilizes many different — and potentially hazardous — energy sources, including gas flame, electric arc, laser, friction and ultrasound. In addition to these hazards, workers are exposed to molten-metal splatter, which can burn holes through, and even ignite, clothing that is not flame resistant.

100 % Cotton or Poly Cotton Fabric

When shopping for work clothes, consumers are presented with a wide range to choose from. The combination of fabrics, styles, and different manufacturers can make the choice a daunting one. Two of the more popular fabrics for work clothes are 100% cotton and a poly-cotton blend. But which is the best choice? In short, that depends on what the buyer is looking for.

So, what are the differences between 100% cotton and poly-cotton blend fabrics? To start with, a poly-cotton blend is just what its name suggests: a fabric that is made up of cotton and polyester fibers. The ratio varies, with 65% cotton and 35% polyester being the most common. 50/50 blends are also easily found. The blend is designed to afford the advantages of both the cotton and polyester fibers into one fabric.

What are the advantages and disadvantages of cotton? 100% cotton is a fully breathable fabric, which means that it can be cooler to wear in hot conditions. However, as the thickness increases, the breathability decreases. 100% cotton tends to rip and wear out easily, depending on the weave. Cotton canvas is a very durable and abrasion-resistant fabric, but it is very thick and heavy. In regards to safety, cotton fibers that have not been treated for fire-resistance will tend to burn away where polyester will melt. As a natural fiber, 100% cotton garments also tend to be a bit more expensive than the synthetic counterparts.

Polyester has an equal number of advantages and disadvantages as cotton. Polyester does not breathe and has a tendency to stick to the skin once perspiration begins. In regard to durability, polyester is a more elastic fiber and therefore tends to be tear resistant. However, it does not tend to be as abrasion-resistant as cotton canvas. As polyester is not dependent upon the forces of nature for a successful harvest, it is usually considerably cheaper than 100% cotton.

A fabric made from a poly cotton blend combines the strengths of the two fibers. Poly cotton garments are breathable, tear-resistant, and can be fashioned into abrasion-resistant fabrics, like canvas. While not as inexpensive as pure polyester, poly cotton blends do tend to cost less than comparable garments made of 100% cotton and they provide much more comfort. The previously mentioned 65/35 blend of cotton and polyester is the most popular for work garments, particularly because of price, durability and a larger color selection being available for purchase. When shopping for work garments, the choice between 100% cotton and poly cotton blends depends largely on the work environment and personal preference. If employees work indoors around machinery, the tear-resistance of poly cotton may be favorable. If the work is in an outdoor setting, particularly in hot climates, 100% cotton fabric could be the better choice. Before deciding, make sure to take all environmental factors into consideration.

It is the intention of this article to help shed some light on the different types of fabric characteristics of 100% cotton and poly cotton fabric. We are hoping to share our thoughts with you in order for you to make a more informed decision when choosing the fabric type for your garments.