Insole for footwear

A product, footwear technology, applied in the direction of soles, footwear, layered products, etc., can solve problems such as excessive sticking

Active Publication Date: 2013-04-03
SOXSOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the adhesive may stick too tightly to some areas of the foot bed and remove part of the foot bed when removing the insole from the shoe

Method used

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  • Insole for footwear
  • Insole for footwear
  • Insole for footwear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Several insoles are manufactured by forming a layer of LSR on the following types of fabrics: cotton mesh, 80% wool / 20% polyester blend felt, and Polartec 300 fleece. Shrinkage of the insole was measured using the ISO 3759 standard to prepare marks and measure the dimensional change of the fabric. Shrinkage was induced by four wash-dry cycles loosely guided by ISO 6330 standard Type B (rotary agitator washing machine) and procedure E (tumble dry). The cleaning temperature is from about 64 degrees Celsius to about 66 degrees Celsius. The dry load was approximately 6.7 kg and included three samples of each coated fabric. In addition to the coated material, uncoated control fabrics were washed and dried in the same batch. The coated fabric is limited to limited dimensional changes through successive aggressive washing and drying cycles. The average shrinkage for each type of coated and uncoated fabric is shown in FIG. 9 . As shown, the coated material was limited to ...

Embodiment 2

[0068] A variety of standards can be used to quantify the tack value and shear strength of the base layer of the insole, including ASTM D2979, ASTM D1894, and ASTM D3654 Procedure A (Test Method for Shear Adhesion of Pressure Sensitive Shapes). In some embodiments, the insole has a base layer formed from an LSR having a tack value of about 0.2N to about 2.2N, more desirably between about 1N and about 2N, as measured according to ASTM D2979 .

[0069] According to ASTM D1894, the shear strength of a material is defined as equal to the ratio of the tensile force applied to the test material to the total weight falling on top of the test material. In some embodiments, the insole has a base layer formed from LSR having a ratio in the range between about 2 and about 24.

[0070] ASTM D3654 Procedure A measures the time it takes for a bonded material to separate from another surface under the force of gravity. Insoles with a base layer formed of LSR have no measurable value accord...

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Abstract

The present disclosures concerns embodiments of a footwear insole that can be used with various types of footwear, including, without limitation, shoes (including open and closed toe shoes), boots, sandals, etc. The insole includes an upper fabric layer that comes in contact with the foot and a cushioning base layer that contacts the footbed of the footwear. The base layer desirably is formed from a self-adhering material that can be applied to in liquid form to the fabric and bonds directly to the fibers of the fabric when cured, so as to eliminate the need for a separate intermediate adhesive layer for securing the fabric to the base layer. The base layer is also configured to substantially prevent shrinkage of the insole when subjected to multiple wash and dry cycles.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 347,304, filed May 21, 2010, which is incorporated herein by reference. technical field [0003] The present application relates to insoles for footwear such as shoes, sandals, boots, and the like. Background technique [0004] In many applications, textiles are used as an interface between an object or body part and the underlying surface to avoid direct contact between the object / body part and the underlying surface. In many of these applications, a non-slip base layer (often formed from a polymeric material) is added to the textile to prevent or minimize slipping or shearing between the textile and the underlying surface. Some examples include coasters, rugs, placemats, and footwear insoles. Since many of these applications result in soiled textiles, it is desirable to employ fabrics that can be washed and dried repeatedly, preferably using a...

Claims

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Application Information

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IPC IPC(8): A43B13/38
CPCB32B27/12A43B17/003B32B2262/0284A43B1/009B32B2262/08A43B17/006B32B2262/062A43B17/18B32B2437/02B32B5/02B32B7/12B32B25/10B32B25/12B32B25/16B32B25/20B32B27/283B32B27/40B32B2307/546B32B2307/7265B32B2307/732B32B2307/744B32B2307/75A43B17/02B05D3/007
Inventor G·施勒姆J·莱瑟
Owner SOXSOLS
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