Selection and Evaluation of Flame Retardant Tooling

Flame-retardant tooling Flame-retardant protection evaluation At present, three methods are used, vertical combustion test method, the test process: the standard methane gas flame, continuous burning fabric 12 seconds after the removal or extinguishment, observe the fabric to continue combustion, and measure the combustion The length of the fabric after the damage. The vertical burning test method simulates the burning state of the fabric when the flame begins to burn from the bottom of the fabric at one end, which is less in the actual real fire.
Thermal protection performance (TPP) test, thermal protection performance TPP test method, closer to the real situation, better reflect the fabric thermal protection performance, is widely used NFPA and GB. Hot test equipment, thermal protection performance TPP test method closer to the real situation, better reflect the thermal protection of fabric performance. The use of the simulation of the human model of the thermometer is the actual fire when the most realistic simulation, the most able to reflect the thermal protection of flame-retardant clothing performance, is the world's most advanced thermal burn assessment equipment.
The mechanical fastness performance of the flame retardant tooling mainly includes the tensile fracture performance, in which the tensile strength of the fabric indicates the elongation deformation ability of the fabric under the maximum load, and the breaking work load represents the area under the elongation curve, Is the energy absorbed by the fabric when it is stretched, that is, the fabric has an intrinsic binding energy that is resistant to external damage. The stronger the broken fabric, the stronger the fabric. The size of the broken work can reflect the fastness of the fabric, and wear time to prove that relatively low strength and high elongation of the fiber and fabric is more durable.
The tearing performance is more important, in the "textile materials" on the fabric tear performance of the opening, it is pointed out: tear strength stronger than the tensile strength of the fabric can better reflect the firmness. In 1990, "Journal of China Textile University", Yang Yixiong in the article "Woven fabric tear phenomenon" also pointed out: the fabric of the tensile damage need to exert a larger load in order to make the system to break the yarn, The actual wear of the woven fabric is less likely to occur.
In the actual wear and use of the process, the fabric was hooked by foreign bodies, local stress tear phenomenon often occurs. In the production, the use of tearing strength than the use of tensile strength can better reflect the fabric fastness.
In summary, when assessing the mechanical properties of flame retardant protective woven fabric, the size of the rupture strength does not represent the merits of its mechanical durability, must consider the elongation at break, fracture work, tear strength and wear resistance.
Yu Long Textile can provide customers from the flame-retardant fabric to fire proof clothing​ one-stop service.