The MIL-C-43665C standard, developed by the US Department of Defense, is designed to manage the mothproofing process (mothproofing) of wool stock, upper, yarn or fabric. Mothproofing treatment is designed for use as a mothproofing agent in wool fabrics and blankets.
Moths are harmful insects that can destroy fabric and other materials. They feed only on animal fibres, especially wool, fur, silk, feathers, felt and leather. These materials contain keratin, a fibrous protein that moth larvae can digest. Cotton and synthetic fabrics, such as polyester and rayon, are rarely attacked unless blended with wool or heavily soiled with food stains or body oils.
According to the MIL-C-43665C standard, the wool content must be mothproof. When white and colored wools are mixed, white wool need not be mothproof if the white wool content is 15 percent or less. However, the total mothproof composition in the finished fabric must comply with this standard. When the white wools in blends of white and colored wools exceed 15 percent, all white wool in addition to the dyed wool must be treated with a mothproofing agent.
The finished fabric created must comply with the requirements of the applicable standard for untreated fabric. The percentage of mothproofing compound stated above is based on weight of pure compound over wool fiber concentration after five cycles of dry cleaning when tested.
According to this standard, fabric labels must include the phrase mothproof in the nomenclature.
All wool clothing and blankets containing wool treated according to this standard must be printed or stamped in black with the phrase “mothproof according to MIL-C-43665 standard” on the polyethylene bag. Or this statement should be on a white paper label placed inside the bag.
Unless specified otherwise in the contract or purchase order, the contractor is responsible for meeting all inspection requirements defined in this standard.
Among the numerous tests, measurements, analyses, and evaluations our organization provides for businesses in various sectors, we also offer moth resistance testing services for military-grade fabrics and wools under the MIL-C-43665C standard, utilizing a trained and expert staff and advanced technological equipment.
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
