What Is a Flammability Tester and Why Is It Important?
There are various kinds of materials produced and manufactured worldwide; some are combustible while others are non- combustible. Earlier, when industries were just an inception, various testing methods were never born. As time passed, reactions of various materials led to the birth of various testing methods, one of which is the Flammability Testing method. The simple word flammable refers to ignition or the intensity of burning out of a particular material or a thing.
Introduction of the Flammability Testing Method
History takes us back to the time in the 1950s, when various setbacks were noticed, and fire threats were seen in the textile industries. The Flammability testing method was founded under the Flammable Fabrics Act of 1953, and later, the Consumer Safety Act was passed, making it compulsory to have clothing textiles undergo flammability tests.
Flammability Regulations and Standards under the Flammable Fabrics Act:
Some mandatory standards were fixed for Textile Flammability tests.
16 CFR1 Part 1610 - Standard for the Flammability of Clothing Textiles
16 CFR Part 1615 - Standard for the Flammability of Childrens Sleepwear
16 CFR Part 1616 - Standard for the Flammability of Childrens Sleepwear
16 CFR Part 1630 - Standard for the Surface Flammability of Carpets and Rugs
16 CFR Part 1631 - Standard for the Surface Flammability of Small Carpets and Rugs
16 CFR Part 1632 - Standard for the Flammability of Mattresses and Mattress materials and mattress pads.
Why is the Textile Flammability Testing so important?
The clear notion about Textile Flammability testing is to understand the behaviour of a given fabric when it is exposed to fire. Every fabric has a different reaction to fire; some burn easily, while some fabrics take minutes to finally burn totally. The textile flammability testing helps in understanding the durability, sustainability, skin friendliness, and irritability factor, and repairability of the fabric, and helps improve the same. This test helps in quality improvement, control, and proper selection of the fabric for mass production of textiles. Texcare Instruments Limited has been a leading manufacturer and supplier of UL94 Flammability Tester instruments.
What are the main reasons or factors that regulate Textile Flammability?
Many factors cause the flammability of textiles, and there are several factors like fibre content, oxygen content, fabric type, weight, finish of the product, and any chemical presence.
Type of Fabric material: The type of fabric material plays a very important role when it comes to understanding how fast the material can ignite or burn out. Textile manufacturers have to always consider this vital point while manufacturing clothing.
Density, Weight, and Structure of the fabric: Clothes are flammable when they are made of single strand textile, as they are light in weight. While clothes that are heavier and made up of multiple fabrics or heavily knitted, it takes much time to flame up.
Burning process: The burning process speaks of the mixture of cotton with polyesters, which is a highly flammable mixture. The cotton holds moisture and humidity, which will support the polyester while burning. While the polyester will start dripping, the whole garment will be burned off.
Finishing process: The manufacturing industry has seen varied changes since the 1970s, especially the textiles industry. Once the flammability testing method was introduced, flame retardants were brought into the picture. Flame Retardants are mixtures of chemicals used with fabric as a finishing to slow the process of fabric burning. Some common flame retardants are (BFR) Brominated Flame Retardants, (PFR) Phosphorus Flame Retardants, (CFR) Chlorinated Flame Retardants, and many more mixtures. These are used on thermoplastic materials or synthetic materials.
Fabric designing: Lightweight, loose clothing is less harmful than tight-fitting and overly complicated clothing styles. The simpler the safer.
What are the different Flammability Testing methods?
One of the strong reasons for conducting the Flammability Testing methods is that it helps understand the Textiles flammability capacity. These tests help manufacturers to produce consumer low risk and highly skin-friendly clothing. These test methods also help them to comply with industrial standards and regulations. Following these test methods not only help manufacture better products but also maintains and increases brand recognition, loyalty, and goodwill. The UL94 Flammability Tester is one of the best Fire Safety Testing instruments manufactured and supplied by Texcare Instruments Limited.
The flammability testing methods are of three main types:
Vertical Burn Flammability Testing Method: This test method is widely applied and conducted on kids wear and sleepwear clothing. Standards and regulations under which the test is conducted are 16 CFR Part 1615 and 16 CFR Part 1616. The procedure is simple and repeated 10 times; the specimen of the cloth is mounted on a vertical holder, and below the specimen, a cotton cloth is spread. The specimen is burned for 10seconds and if the fire runs out its burned once again and repeated 10 times more. The damaged part of the specimen is then recorded as the char length. Average char length is expected to be 7 inches to 10 inches long. This testing method is suitable for Textile manufacturing.
Horizontal Burn Flammability Method or the Horizontal Burn Test: This test method is widely applied and conducted under the standards and regulations of 16 CFR1 Part 1610. While the goal to be achieved is similar to the above test, the methodology is slightly different. In this method, the specimen is mounted horizontally on the vertical holder, and its end is burned for at least 30-40 seconds. The burned part of the specimen is recorded and studied as to how quickly the material burns out.
45 Degree Inclined surface Flammability method: For this test, the clothing is positioned at a 45 Degree Angle, and a small flame is burned at the end of the particular specimen. The ignition is turned down, and the results are recorded. The standards and regulations of 16 CFR1 Part 1610 are applied here; this test is not conducted on kids wear and apparel.
What are the flammability parameters?
Every test method has basic parameters that need to be considered and studied accordingly to avoid mishaps while manufacturing textile clothing and apparel. Here is a list of Flammability Parameters:
Fire Resistance Testing: The ultimate reason for flammability tests is to determine the fire resistance of a material to ignition, burn, fire, heat, and flame.
Flame Spread Test: In accordance with its name, the flame spread test is used to determine the rate at which the flame spreads on a material or cloth surface specimen, which is recorded for results later.
Ignition Point or Flash Point: This parameter helps to understand the lowest temperature at which a cloth specimen can ignite, and vapour is released.
Cloth Reaction to Fire: In simple terms, this parameter helps study the time a particular cloth reacts with fire, whether it is highly combustible or burns off quickly. The ignition or burning rate, along with the gases and smoke it releases, is also recorded.
The Char Length of fabric: The Char length is the total burnt or damaged part of the cloth, which is recorded with the time taken to burn.
Dripping Test: The dripping or melting parameters help to record the time at which the cloth starts melting and dripping, and finally burns out and starts spreading fire to the surrounding areas.
Which Industries undergo and require the Flammability Test?
Textiles and Apparel Industries: Textile flammability tests are highly required for cloth manufacturing. These materials, being highly consumed by consumers, require these tests for safety reasons. These tests are encouraged for kids wear and apparel.
Automation and Aviation Industries: One of the second largest industries that uses thermoplastic and synthetic materials for huge airplanes and heavy metal vehicles, because they are low-flammable and lightweight, along with cost effective choice. Many consumer-oriented materials are made from such textiles.
Upholstery and Furniture Industries: They use a wide range of materials other than wood. Many chemicals, dyes, paints, and colours are used while making furniture and upholstery items.
Electronics Industries: Live wires and other electronic items are highly conductive items and can add to fire. Every component is hazardous and flammable; studying its capacity and rate of burning is heavily required.
Plastic and Polymers Industries: Flammability testing is widely conducted in plastic industries as well. Plastic materials are made up of polymerisation, the chemical properties that make them combustible.
FAQs:
Q: Which are the industries frequently use flammability testers?
A: From the clothing and apparel industry to Consumer goods manufacturers like plastic industries and Luxury item industries like Automobiles and Aviation industries use flammability testers.
Q: Is flammability testing highly mandatory?
A: Yes, the flammability testing is mandatory under the Consumer Safety Act 1978, which was proposed to commit to consumer safety, since this testing method helps determine the burn rate of various materials under multiple circumstances.
Q: How do we understand flammability testing?
A: In simple words, flammability testing is the study or experiment used to determine the rate at which a particular product specimen burns out or ignites and spreads flame or fire to surrounding areas.
Q: Why is flammability testing required?
A: The natural cause or requirement of flammability testing is such that it helps manufacturers and various industries to produce consumer friendly, low risk and less flammable products. These tests help them to check and record the quality of the material and replace it if problems arise.
Q: What standards are used in flammability testing?
A: There are multiple standards used for flammability testing; ASTM, IEC, and ISO are the three major categories under which standardisation is done.