Yarn of staple fibers from multi-filaments by stretching and controlled breaking and articles made therefrom

A plied yarn, comprising:

• M single-strand yarns, being doubled or twisted together, M being an integer equal to or larger than 2, each single-strand yarn comprising:
• a plurality of intimately associated staple fibers, being made from N strands of first multi-filaments by stretching and controlled breaking, and then being spun by a spinning process, N being a natural number,
• wherein within said one single-strand yarn of a sampling length, a ratio of the number of the staple fibers, whose length is equal to or greater than 60% of a setup fiber length, to the total number of the staple fibers is equal to or greater than 60%, the sampling length is equal to or less than 10 meters, the setup fiber length is equal to or larger than 65 mm, a dispersion of a weight distribution in an average length of said one single-strand yarn is equal to or less than 60%,
• wherein the N strands of first multi-filaments are made of at least one selected from the group consisting of copper, CuNi alloys, CuNiSi alloys, CuNiZn alloys, CuNiSn alloys, CuCr alloys, CuAg alloys, CuW alloys, FeCrAl alloys, silver, gold, lead, zinc, aluminum, nickel, brass, phosphor bronze, beryllium copper, nichrome, tantalum, tungsten, platinum, palladium, stainless steels, 316L stainless steel, titanium, titanium alloys, Ni—Cr—Mo—W alloy, zirconium, zirconium alloys, HASTELLOY® alloys, Nickel alloys, MONEL® alloys, ICONEL® alloys, FERRALIUM® alloy, NITRONIC® alloys, CARPENTER® alloy, polyester, polyamide, aramid polyamide, polyacrylic, polyethylene, ultra-high molecular weight polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, polybenzoxazol (PBO), polyvinylcarbazole, polyetherketone, carbon, bamboo charcoal, and glass.

A textile article woven from a first single-strand yarn or a plied yarn by one selected from the group consisting of a weaving process, a non-weaving process, a knitting process, a warp knitting process, and a weft knitting process, the plied yarn comprising M second single-strand yarns which are doubled or twisted together, M being an integer equal to or larger than 2, the first single-strand yarn and each second single-strand yarn both comprising:

• a plurality of intimately associated staple fibers, being made from N strands of first multi-filaments by stretching and controlled breaking, and then being spun by a spinning process, N being a natural number,
• wherein within said one single-strand yarn of a sampling length, a ratio of the number of the staple fibers, whose length is equal to or greater than 60% of a setup fiber length, to the total number of the staple fibers is equal to or greater than 60%, the sampling length is equal to or less than 10 meters, the setup fiber length is equal to or larger than 65 mm, a dispersion of a weight distribution in an average length of said one single-strand yarn is equal to or less than 60%,
• wherein the N strands of first multi-filaments are made of at least one selected from the group consisting of copper, CuNi alloys, CuNiSi alloys, CuNiZn alloys, CuNiSn alloys, CuCr alloys, CuAg alloys, CuW alloys, FeCrAl alloys, silver, gold, lead, zinc, aluminum, nickel, brass, phosphor bronze, beryllium copper, nichrome, tantalum, tungsten, platinum, palladium, stainless steels, 316L stainless steel, titanium, titanium alloys, Ni—Cr—Mo—W alloy, zirconium, zirconium alloys, HASTELLOY® alloys, Nickel alloys, MONEL® alloys, ICONEL® alloys, FERRALIUM® alloy, NITRONIC® alloys, CARPENTER® alloy, polyester, polyamide, aramid polyamide, polyacrylic, polyethylene, ultra-high molecular weight polyethylene, polypropylene, cellulose, protein, elastomeric, polytetrafluoroethylene, polybenzoxazol (PBO), polyvinylcarbazole, polyetherketone, carbon, bamboo charcoal, and glass.