MULTILAYER HEAT-SHIELDING MATERIAL FOR SHOES (VERSIONS) Russian patent published in 2005 - IPC

Abstract RU 2255637 C1

FIELD: light industry, in particular, production of parts for winter shoes.

SUBSTANCE: multilayer heat-shielding material has face layer including needle-stitched fibrous base with volumetric density of 0.19-0.24 g/cm3 composed of polyester filaments with linear density of 0.33 tex and polyester high-shrinkage filaments with linear density of 0.17 tex, used in the ratio of 7-8.5:3-1.5, said base being manufactured at needle stitching density of 500-650 1/cm2 and needle stitching depth of 5-7 mm. Material has intermediate layer comprising 40-120 micron thick polyolefin polymeric film plated with aluminum at one or two sides, and reverse side including artificial shoes fur with surface density of 500 g/m2 of polyester filaments having pile density of 70 piles/10 cm. Material layers are connected by needle stitching method at needle stitching density of 200-250 1/cm2 and needle stitching depth of 7-8 mm, with following thermal processing at temperature of 180°C and compacting on heated calendar at temperature of 80-140°C and pressure of 2-5 atm. Another version of material is multilayer heat-shielding material including face layer, which is needle stitched fibrous base with volumetric density of 0.19-0.24 g/cm3, composed of polyester filaments with linear density of 0.33 tex and polyester high-shrinkage filaments with linear density of 0.17 tex used in the ratio of 7-8.5:3-1.5, produced by needle stitching method at needle stitching density of 500-650 1/cm2 and needle stitching depth of 5-7 mm. Said material also has intermediate layer comprising 40-120 micron thick polyolefin polymeric film whose one or two sides are plated with aluminum. Layers are connected by needle stitching method at needle stitching density of 200-250 1/cm2 and needle stitching depth of 4-6 mm. Reverse layer has artificial shoes fur with surface density of 500 g/m2 of polyester filaments with pile density of 70 piles/10 cm, connected with intermediate layer by polyvinyl acetate thermoplastic emulsion having viscosity of 100 poise, with following thermal processing at temperature of 180°C and compacting by heated calendar at temperature of 80-140°C and pressure of 2-5 atm.

EFFECT: improved heat-shielding properties owing to increased thermal resistance, improved moisture resistance, hygienic and deformation-strength properties of material.

3 cl, 2 tbl, 27 ex

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RU 2 255 637 C1

Authors

Kozlov S.N.

Sorokina T.B.

Larina T.M.

Savicheva N.S.

Dates

2005-07-10Published

2004-07-29Filed