COMPOSITE MATERIAL FOR INNER PARTS OF SHOES

摘要

FIELD: personal use articles. ^ SUBSTANCE: invention relates to light industry and may be used to manufacture inner parts of shoes and prosthetic-orthopaedic items on the basis of non-woven needle-punching synthetic fibres and tanning wastes. Composite material for inner parts of shoes and prosthetic-orthopaedic items with thickness of 1.9-2.2 mm includes three layers impregnated with skin glue. At the same time outer layers of material represent needle-punching cloths made of mixture of synthetic bicomponent and polyester fibres. Inner layer consists of ground tanning chips with fibre size of 0.5-1.8 mm. Material has the following composition, wt % : synthetic fibres 61- 65; tanning chips 25-27; skin glue 10 -12. Produced material may be shaped as resistant in operation. Required hygienic properties are maintained both by presence of protein fibrous components - tanning chips and by using highly porous non-woven cloth made of synthetic fibres as the base. Composition of synthetic fibres producing cloth is selected so that as a result of their coupling and subsequent heat moulding, fibrous-porous structure of material is preserved. ^ EFFECT: new material, providing for required hygienic and strength properties, is suitable to make inner soles and various prosthetic-orthopaedic items. ^ 1 tbl, 2 ex