Protective clothing production process

In the workplace, people may be exposed to the risk of heat or flame. In this case, they should be given appropriate protective clothing, so it is necessary to properly select such protective clothing. The purchaser should know this protection. The expected role of clothing. The role of this protective clothing is to act as a fire shield, the barrier between the wearer and the flame when exposed to a flame.

Isolation of heat emitted from flames and heat sources. It should also protect the wearer when they escape heat and flame burning. The protective effect of such protective clothing for the wearer should be consistent with the potential hazards they face during exposure, escape, and the service life of the protective clothing. They should not burn, melt, or break when in contact with flames. . It should also provide mechanical protection against tears, abrasions, open seams, and, depending on the intended use, it also needs to provide protection against weather changes and chemical substances.

Once the protection failure has fatal consequences, the source of the product is particularly critical. It must be checked and tested continuously before it can be guaranteed to the manufacturer, purchaser and user that the purchased protective clothing is indeed suitable for the purpose. This means that you can receive the expected results in the expected environment.

The final production of protective clothing is a result of passing through the “value chain”; that is, a series of activities in which the product passes through each stage of the production process and gradually transforms raw materials into finished products in each stage. Some organizations that produce high-quality products have a good reputation. They strictly enforce performance and quality standards from the beginning to the end of the value chain in order to deliver finished products to users.

(1) Fiber production process:

The meta-aramid fiber shown in the figure

Fiber is the basic element of fabrics and other textile structures. The meta-aromatic polyamide in the chemical family is a type of fiber that is widely used in high-temperature/flame-resistant garments. It is characterized by high strength, especially high temperature/flame resistance. Well-known meta-aramid fibers for high-temperature/flame-resistant garments include Kermel, Conax, Conex, and Nomek. Nomex.

(2) Yarn production process:

The original form of fiber can not be used for protective clothing. In order to achieve this goal, they must be converted into yarns. The process of forming yarns is spinning, which is to twist fibers together to form yarns. Yarns are used to weave fabrics and can also be used to make threads that sewn together to form protective clothing. Meta-aramid fibers can be spun into meta-aramid yarns.

(3) Fabric production process:

As shown in the fabric

The change from yarn to fabric is a physical change. When flame-retardant fibers are used to produce high-temperature/flame protective clothing fabrics, other factors should be considered in accordance with the ultimate use of protective clothing. These factors include structure, weight, comfort, strength, elasticity, and color. There are also factors that need to be considered, such as water/anti-chemical, visibility and anti-static. Blending fabrics made of meta-aramid yarns with other special high-quality fibers can provide these required functions in the fabric and use it in protective clothing during the second phase of the value chain.

(4) Protective clothing production process:

Picture of protective clothing

The protective clothing manufacturer designs all the features that the buyer may require into the protective clothing, such as the type and location of the pocket and the threshold system. For high temperature/flame protection suits, the designer must ensure that the wearer is designed to protect the upper and lower torso of the body, including the arm to wrist and leg to foot, when the wearer is accidentally surrounded by a flame. Lines used to sewn key parts of protective clothing should also be made of meta-aramid or other high-temperature yarns. If the suture used for the main suture of the protective suit does not have such characteristics, the flame will melt or burn upon contact with the flame, and the protective clothing will be torn apart, which may expose the wearer to direct contact with the flame/heat source.

In every stage of the value chain, manufacturers with a good reputation will continue sampling and testing to test the product's protection and quality. During the production of protective clothing, protective clothing has to be tested and certified by an independent laboratory to meet the requirements of the European Committee for Standardization (CEN), the National Fire Protection Association (NFPA) or the International Organization for Standardization (ISO) for such protective clothing. standard. Such tests are destructive tests of fabrics and/or protective clothing, so protective clothing manufacturers need to be able to fully demonstrate the successful adoption of the relevant CEN/NFPA/ISO testing of protective clothing of the same design, fabric composition and quality. It is produced by the manufacturer according to the usual standards. this point is very important.

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