Footwear insole with a moisture absorbent inner layer
AssigneeOgden, Inc.
InventorJohn M. Ogden
Life of this patent
Estimating the term…
Abstract
An insole for an article of footwear which includes an apertured top layer formed of a non-absorbent, thermally non-conductive thermoplastic material, a non-woven layer having a first portion formed of a mixture of moisture-wicking and moisture-absorbent fibers affixed to the top layer, and, optionally, a second portion including fibers which are non-adsorbent and non-absorbent, and, in various embodiments, a barrier layer and/or cushioning layer(s) forming a laminate in which the non-woven layer is sandwiched between the top layer and such other layers. The chemical formulation of the top layer of thermoplastic material can be varied to alter its coefficient of friction or degree of slip resistance of the insole depending upon the requirements of a particular application.
Claims25
An insole for an article of footwear, comprising:
- a first layer formed of a slip-resistant, non-absorbent and thermally non-conductive thermoplastic material, said first layer being formed with a plurality of apertures having wall sections therebetween, said wall sections of said first layer having an inner surface and an outer, exposed surface which contacts the foot of a wearer of the article of footwear;
- a second layer affixed to said wall sections of said first layer said second layer being formed of a non-woven material consisting of a mixture of moisture-wicking fibers and moisture-absorbent fibers, said second layer having a basis weight in the range of about 2 ounces per square yard to about 5 ounces per square yard and a tear strength in the range of about 35 pounds to about 100 pounds in the machine direction and in the range of about 25 pounds to about 60 pounds in the cross direction, said non-woven material of said second layer being effective to substantially prevent movement of said wall sections of said first layer relative to one another under the application of a shear force to said first layer as a result of front-to-back, side-to-side and/or rotational movement of the foot of the wearer of the article of footwear which contacts said first layer.
An insole for an article of footwear, comprising:
- a first layer formed of a slip-resistant, non-absorbent and thermally non-conductive thermoplastic material, said first layer being formed with a plurality of apertures having wall sections therebetween, said first layer having an inner surface and an outer exposed surface which contacts the foot of the wearer of the article of footwear;
- a second layer affixed to said wall sections along the inner surface of said first layer, said second layer consisting of a non-woven material having a basis weight in the range of about 2 ounces per square yard to about 5 ounces per square yard and a tear strength in the range of about 35 pounds to about 100 pounds in the machine direction and in the range of about 25 pounds to about 60 pounds in the cross direction said non-woven material of said second layer being effective to substantially prevent movement of said wall sections of said first layer relative to one another under the application of a shear force to said first layer as a result of front-to-back, side-to-side and/or rotational movement of the foot of the wearer of the article of footwear which contacts said first layer.
Dependencies are inferred from the claim text.