MATERIAL FOR INSERT-TYPE INNER SOLE FOR SHOES AND METHOD FOR MANUFACTURING THE SAME Russian patent published in 2005 - IPC

FIELD: light industry, in particular, shoe industry.

SUBSTANCE: method involves forming fibrous combings including flax filament and fixing its structure; producing formed fibrous combings from 100% cottoned flax with filament length of 40-60 mm; placing fibrous combings between synthetic netted webs with effective cross-section coefficient of at least 60% and directing through 2-8%-chitosan solution for 3-5 min; drying fibrous combings at temperature of 80-90°C and removing netted webs. One of webs between which fibrous combings are placed is manufactured from cotton-flax fabric contacting with impermeable substrate during drying procedure, with following removal of synthetic netted web. Material for insert-type inner sole is made from fixed fibrous flax-containing combings comprising cottoned flax and chitosan used in the ratio, wt%: cottoned flax 60-80; chitosan 20-40. Material further comprises cotton-flax fabric and has hygroscopicity of 18-21%, moisture yield of 10-14% and wear-resistance of 4,000-10,000 cycles.

EFFECT: simplified process, improved hygroscopicity, moisture yield, wear-resistance, adjustable flexure hardness, improved fungi-resistance, form stability and antimicrobial properties imparted by impregnating cottoned flax combings with chitosan solution.

4 cl, 2 tbl, 8 ex