METHOD OF PRODUCTION OF THREAD CONNECTION OF PARTS MADE OF FELT Russian patent published in 2015 - IPC D05B1/26 

FIELD: textiles, paper.

SUBSTANCE: invention relates to light industry and can be used for production of sealed joints in the manufacture of products from felt to increase the heat-protective and deformation and strength properties of the products. The method of production of thread connections of parts made of felt comprises forming thread connection and its sealing, comprises additional preparing the part edges by deflating their thickness at an angle of α=30°-45°, which is set according to the properties of the materials used, such as: type of felt, its structure and thickness; making thread connection in the form of 4 or 5-thread flat seam with a frequency of stitching of 3-6 stitches/cm, and the sealing of thread connection is carried out by uniform applying of the sealant in the seam area with the flow of 0.03-0.04 g/cm² followed by drying. The proposed method enables to improve the hygienic, operational and aesthetic properties of the thread connection. Sealing is carried out without additional mechanical, thermal or chemical effect on the joined materials, and also without the use of additional auxiliary materials, namely, adhesives, sealing tape, which enables to reduce material costs in the manufacture of the perform of shoe upper of felt.

EFFECT: increase in heat-protective and deformation and strength properties of products.

2 dwg, 5 tbl