Insole

Abstract

The invention relates to an insole (100) for shoes, in particular as a disposable product, having a top layer (200) that comprises a two-ply basic material and faces the foot, and a base layer (202) that is connected to said top layer (200) and faces the shoe, and having a foot surface (104) that faces the foot and an opposite Sole surface (102) that laces the shoe, wherein the top layer (200) and the base layer (202) consist of a staple-fibre nonwoven and bicomponent fibres and absorbent cellulose-based fibres and/or hydrophilic synthetic fibres are contained in the top layer and in the base layer, and wherein the insole has a combination comprising at least two different active-substance groups, the active-substance groups being selected from the group of antimicrobial active substance, odour absorbent and odour-masking substance, and both the base layer (202) and the top layer (200) being assigned at least one active-substance group.

1 . An insole ( 100 ) for shoes, comprising a basic material containing at least two layers, the basic material comprising a top layer ( 200 ) facing the foot and a base layer ( 202 ) bonded thereto that faces the shoe, and wherein the top layer ( 200 ) has a foot surface facing the foot ( 104 ) and the base layer ( 202 ) has an opposite sole surface ( 102 ) that faces the shoe, and wherein the top layer ( 200 ) and the base layer ( 202 ) comprise a staple fiber nonwoven and bicomponent fibers, and absorbent cellulose-based fibers and/or hydrophilic synthetic fibers which are contained in the top layer and in the base layer, and wherein the insole further comprises a combination of at least two different active substances, the active substances being selected from the group consisting of antimicrobial active substances, odor-absorbing agents, odor-masking substances, and combinations thereof, and both the base layer ( 202 ) and top layer ( 200 ) each contain at least one of the active substance groups. 
     
     
         2 . The insole ( 100 ) of  claim 1 , wherein, the base layer ( 202 ) and the top layer ( 200 ) differ in at least one property, selected from the group consisting of fiber composition, weight per unit area, thickness, density, and water retention capacity. 
     
     
         3 . The insole ( 100 ) of  claim 1 , wherein the insole ( 100 ) has an infiltration time of at most 20 seconds. 
     
     
         4 . The insole ( 100 ) of  claim 1 , wherein the top layer ( 200 ) and/or the base layer ( 202 ) has/have a water retention capacity of at least 1 g/g and at most 15 g/g. 
     
     
         5 . The insole ( 100 ) of  claim 1 , wherein the base layer ( 202 ) and the top layer ( 200 ) are bonded by an embossed pattern ( 109 ). 
     
     
         6 . The insole ( 100 ) of  claim 1 , wherein one of the at least two active substances is an odor-absorbing agent ( 206 ) which is provided on the sole surface ( 102 ). 
     
     
         7 . The insole ( 100 ) of  claim 1 , wherein one of the at leas two active substances is an odor-masking substance ( 208 ) which is provided on the foot surface ( 104 ). 
     
     
         8 . The insole ( 100 ) of  claim 1 , wherein one of the at least two active substances is an antimicrobial active substance ( 204 ,  210 ) which is provided on the foot surface ( 104 ) and/or in the top layer ( 200 ), and/or on the sole surface ( 102 ), and/or in the base layer ( 202 ). 
     
     
         9 . The insole ( 100 ) of  claim 1 , wherein at least one of the at least two active substances is provided such that it does not penetrate the base layer ( 202 ) and/or the top layer ( 200 ), and wherein the active substance is provided in particle-bound and/or polymer-bound form on the sole ( 102 ), and/or on the foot surface ( 104 ) of the basic material. 
     
     
         10 . The insole ( 100 ) of  claim 1 , wherein one of the at least two active substances is not provided in particle-bound and/or polymer-bound form on the sole ( 102 ), and/or foot surface ( 104 ) of the basic material, and is capable of diffusing into the interior of the respective layer. 
     
     
         11 . The insole ( 100 ) of  claim 1 , wherein the at least two active substances is a combination of three different active substances. 
     
     
         12 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is arranged on one of the surfaces selected from the sole surface ( 102 ) and the foot surface ( 104 ), and the other of the at least two active substances is arranged on the other at the two surfaces, selected from the foot surface ( 104 ) or the sole surface ( 102 ). 
     
     
         13 . The insole ( 100 ) of  claim 1 , wherein on the sole surface ( 102 ), a coating ( 112 ) is provided that imparts increased frictional force to the sole surface ( 102 ) compared to the uncoated sole surface ( 102 ). 
     
     
         14 . The insole ( 100 ) of  claim 13 , wherein the coating ( 112 ) is not full-surface, but is composed of coating elements selected from the group consisting of point-shaped coating elements, line-shaped coating elements, sheet-shaped coating elements and combinations thereof. 
     
     
         15 . The insole ( 100 ) of  claim 13 , wherein at least one of the at least two different active substances in the coating ( 112 ) is added to and/or bonded to said coating. 
     
     
         16 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is an odor-absorbing agent ( 206 ) which is selected from the group consisting of activated carbon, zeolite, starch, diatomaceous earth and combinations thereof. 
     
     
         17 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is an antimicrobial active substance ( 204 ,  210 ) which is selected from the group consisting of antimicrobial metals, polysaccharides, and combinations thereof. 
     
     
         18 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is an odor-masking substance ( 208 ) which comprises a microencapsulated perfume. 
     
     
         19 . The insole ( 100 ) of  claim 1 , wherein the top layer ( 200 ) comprises 25-35 wt % bicomponent fibers, at least 20 wt %, hydrophilic synthetic fibers, and optionally, also up to 50 wt % cellulose-based fibers. 
     
     
         20 . The insole ( 100 ) of  claim 1 , wherein the base layer ( 202 ) comprises 35-60 wt % bicomponent fibers at least 40 wt % cellulose-based fibers, and optionally, also up to 10 wt % synthetic fibers. 
     
     
         21 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is an antimicrobial active substance ( 204 ,  210 ) which is provided in a weight per unit area of 0.001-2 g/m 2 . 
     
     
         22 . The insole ( 100 ) of  claim 1 , wherein one re the at least two different active substances is an odor-absorbing agent ( 206 ) which is provided in a weight per unit area of 0.2-30 g/m 2 . 
     
     
         23 . The insole ( 100 ) of  claim 1 , wherein one of the at least two different active substances is an odor-masking substance ( 208 ) which is provided in a weight per unit area of 0.1-5 g/m 2 . 
     
     
         24 . The insole ( 100 ) of  claim 1 , wherein the at least two different active substances are the active substance groups of antimicrobial active substances ( 204 ,  210 ) and odor-absorbing agents ( 206 ) which are introduced in a weight ratio of 1:2 to 1:500, and/or the active substances are antimicrobial active substances ( 204 ,  210 ) and odor-masking substances ( 208 ) which are introduced in a weight ratio of 1:0.5 to 1:150. 
     
     
         25 . The insole ( 100 ) of  claim 17 , wherein the antimicrobial metal is silver and/or the polysaccharide is chitosan. 
     
     
         26 . The insole ( 100 ) of  claim 19 , wherein the biocomponent fibers are polyester-based, and/or the hydrophilic synthetic fibers are polyester fibers, and/or the cellulose based fibers are viscose. 
     
     
         27 . The insole ( 100 ) of  claim 20 , wherein the biocomponent fibers are polyester-based, and/or the cellulose-based fibers are cotton, and/or the synthetic fibers are polyester fibers.