METHOD TO PRODUCE SYNTHETIC THREAD FOR PRODUCTION OF TECHNICAL FABRICS WITH POSSIBILITY OF IDENTIFICATION Russian patent published in 2012 - IPC D01F1/00 D01F6/60 

FIELD: textile, paper.

SUBSTANCE: method is proposed to produce synthetic thread for production of technical fabrics with linear density of 93-187 tex. Thread is made from melted polyamide or polyester by squeezing through a draw plate, after the draw plate the elementary threads are cooled down, and a lubricating agent is applied onto them, at the same time the lubricating agent contains an additive, properties of which only show in the finished fabric during its appropriate treatment with provision of the possibility to identify the thread. In one version of the invention the additive to the lubricating agent is a colourless organic phosphor, and in order to identify the thread, fabric radiation is used with a source of ultraviolet light. In the other version the additive to the lubricating agent is a chemical indicator, and to show the additive properties, a chemical reagent complying with the indicator is added.

EFFECT: invention makes it possible to identify the thread within technical fabric, with preservation of high quality and strength properties of synthetic cloth.

6 cl, 2 ex