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Silver is a metallic element that exists naturally in nature only in very small quantities. It is found in ore as a free metal and as part of copper-nickel and lead-zinc ores. It is used in coins, medals and jewelry as well as in household items like silverware, mirrors and window frames. It has a low melting point and boiling point, but it tarnishes in air containing sulfur or ozone, and it corrodes in contact with strong acid.
In ancient times, wool was the common fabric for clothing and other textiles. It was also used for blankets, horse rugs and saddle cloths, and for carpeting. Today, wool is often used in wet and needle felting art forms as well as to absorb odors and sound in heavy machinery and stereo speakers. It is even used for lining piano hammers and in the breastplates of Roman legionnaires. Any wool finer than 25 microns can be used for garments, while coarser grades are used for rugs or outerwear.
silver wool is made with a knitted fabric consisting of Ne 60/2 wool yarn produced by a local woolen mill. The silver-ion-releasing antimicrobial SmartSilverTM is added to the yarn during the spinning process. This treatment releases silver ions into the yarn to inhibit the growth of microbeads, which can cause odor and material degradation. Conductivity testing of the resulting fabric was conducted using a constant-bending test, and it was observed that the resistance values do not change significantly even after 150 bending cycles. This high degree of stability under varying bending conditions makes this silver wool fabric an excellent candidate for use in wearable electronic devices.