Studying the properties of twisted threads for silk medical bandage

This article presents the urgency of the problem, the sequence of technological processes for the production of silk twisted yarn from raw silk for the production of medical bandage. In order to fold a few threads, and give them a twist, first raw silk is rewound onto a spool. Before rewinding, the hanks are checked for gluing, in our cases a low gluing is determined, therefore, in order to soften the glued places, the threads are treated with an emulsion by spraying. After that, raw silk holds the rest room and is rewound to the two flange bobbin using the MT-85 machine in the Japanese system. The principle of operation and technological drawings are given. Torsion is carried out by adding 3 raw silk 2,33 tex to give the left twist S 350 tw/m and adding 8 raw silk 3,23 tex with the left twisting S 500 tw/m. The torsion process is performed on a TK-2 twisting machine. The process of fixing the twist of the finished twisted yarns is made on Japanese equipment SC-750. The qualitative indicators of twisted yarns are given: linear density, coefficient of variation in linear density, breaking load, breaking elongation, direction and amount of twist, and coefficients of variation in twisting.

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