Ptfe Dental Silk Came In Austria (rosebuds)

September 2nd, 2010 admin Posted in flowers |

By sdabedw

Austria Lenzing AG fiber company has invented a new type of dental thread, this thread on low fibril forming mold made of PTFE core yarn. Such as the United States Patent 6,238,605, referred to PTFE sandwiched between two rollers made of flat yarn, they are generally in the 600 1200dtex, tensile direction toughness of at least 25 30cN/tex, density 16 1 8g/cm3 the following. If this flattening of the yarn is used as a dental unit thread, then it can wax coating, and some paint is also beneficial to dental health. It is said that because of this silk yarn stocks in particular molded shape tolerance fibrillation, and than other molded shape of the yarn has a better performance. Through this yarn can be twisted around the core yarn to make this yarn, especially the edge of the surface becomes rough, which helps to clean. This new thread is soft, his toughness capability fibrillation, there is a good cleaning effect. To a width of 2 2mm, the thickness of 35m, toughness 26cN/tex, 7% elongation, density 1 8g/cm3 the PTFE strip twisted into a length of 250 m twist, and then make it through roll extrusion, a new band, this band thickness 50m, width of 1 3mm, density 1 9g/cm3, toughness 25cN/tex, elongation rate of 10%. This band was wrapped in 320dtex core yarn of polyester filaments, the core yarn twist there are 100 twist per meter of 800dtex PTFE yarn. And the line is in a ring machine on, and by adjusting the yarn tension can make the two materials with different settings and feeding - the tension of polyester 100g, but the tension PTFE only 20g. This package wrapped around PTFE yarn according to the above method and then crushed. This will produce a wide 15mm, thickness of 50m, tear strength 35cN/tex, 15% of the flat yarn to twist. One of the polyester composition to PTFE yarn twisted in the same concentration of 3% before the use of disinfectants for processing.

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