Abstract
The carbon black has been used in military fabrics to comply with the color requirements and infrared radiation lessening criteria. Currently, military industries don’t distinguish between fabrics with carbon black fibers or with carbon black into dyes or prints. The latter initially allows us to comply with the color specifications in the visible and infrared, but fabrics are degraded with use losing that initial capacity. The inclusion of carbon black in the fiber gets that the fabric doesn’t degrade with the wear, washed and dried, ensuring the accomplishment of the specifications all the time. The use of infrared imaging will allow us to define a method to discriminate those textiles with carbon black in their fibers from those which are dyed or printed.
Highlights
Soldiers of the same army are dressed since ancient, and vividly, vividly, due to the necessity of identifying the enemy in close combat or in the midst of the battle
The carbon black has been used in military fabrics to comply with the color requirements and infrared radiation lessening criteria
Military industries don’t distinguish between fabrics with carbon black fibers or with carbon black into dyes or prints. The latter initially allows us to comply with the color specifications in the visible and infrared, but fabrics are degraded with use losing that initial capacity
Summary
Soldiers of the same army are dressed since ancient, and vividly, vividly, due to the necessity of identifying the enemy in close combat or in the midst of the battle. Carbon black has the ability to absorb radiation in the near infrared spectrum, so the soldiers can be hidden at night and infrared cameras can’t detect them because the fabrics absorb the infrared radiation generated by the human body heat These uniforms are made with fabrics and/or fibers which have been previously treated to include carbon black [2]. Nowadays control institutions (laboratories and armies) do not take into account the requirement of black carbon in fiber and validate all fabrics that are in agreement with the color specifications both in the visible and infrared ranges, this will probably change in the future due to the requirements of durability of the uniforms In this regard, a method for the detection of fabrics with black carbon in fibers is defined, that can be used in the military scenario to help differentiating them from those fabrics that have undergone a dye or print process.
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