Waterproof Footwear and Method for Its Production

Abstract

A shoe-reinforcement material having a fiber combination with a first fiber component and a second fiber portion having a second fiber component, whereby the first fiber component has a first melting point and a first softening-temperature range lying below it, and a first fiber portion of the second fiber component has a second melting point and a second softening-temperature range lying below it; the first melting point and the first softening-temperature range are higher than the second melting point and the second softening-temperature range, the second fiber portion of the second fiber component has a higher melting point and a higher softening temperature lying above it than the first fiber portion, and the fiber combination.

1 . Method for producing footwear with an upper which is constructed with an outer material having an outer-material end region on the sole side and with a waterproof functional layer which is arranged on the inner side of the outer material and has a functional-layer end region on the sole side, and with an inner sole, comprising the steps of:
 a) the outer-material end region is joined to the inner sole by means of a joining device running around at least part of the periphery of the upper, in such a way that a space through which liquid can flow can be established between the outer-material end region and the inner sole,   b) the functional-layer end region is designed in such a way that it extends at least into the region of the joining device;   c) while the outer-material end region and the inner sole are kept at a distance from each other by means of the joining device, a sealing material which is in the liquid state and leads to waterproofness is applied to the outer side of the joining device in such a way that it flows through the liquid-permeable joining device against the functional-layer end region.   
     
     
         2 . Method according to  claim 1 , in which the joining device is produced in such a way that it runs around the entire periphery of the upper. 
     
     
         3 . Method according to  claim 1 , in which the joining device is produced in such a way that it runs around only part of the periphery of the upper. 
     
     
         4 . Method according to  claim 1 , in which the joining device is formed as a joining device which is like or similar to a seam. 
     
     
         5 . Method according to  claim 1 , in which the joining device is formed by an expandable seam. 
     
     
         6 . Method according to  claim 5 , in which the joining device is formed by a loosely sewn seam. 
     
     
         7 . Method according to  claim 5 , in which the joining device is formed by a seam sewn with extensible yarn, 
     
     
         8 . Method according to  claim 5 , in which the seam is formed by a Strobel seam, a quilted seam, a cross seam or a zig-zag seam. 
     
     
         9 . Method according to  claim 1 , in which a sealing layer to be moulded on, consisting of a sealing material which is liquid when it is moulded on and can penetrate through the joining device, is formed as the sealing material. 
     
     
         10 . Method according to  claim 1 , for producing footwear with a moulded-on sole, in which the sealing material is formed by sole material which is liquid when it is moulded on and penetrates through the joining device. 
     
     
         11 . Method according to  claim 10 , for producing footwear with a moulded-on outsole, in which the sealing material is formed by outsole material which is liquid when it is moulded on. 
     
     
         12 . Method according to  claim 1 , in which a plastic is used as the sealing material. 
     
     
         13 . Method according to  claim 1 , in which an adhesive is used as the sealing material. 
     
     
         14 . Method according to  claim 1 , in which the functional-layer end region on the sole side is adhesively bonded to the inner sole. 
     
     
         15 . Method according to  claim 1 , in which a substantially nonexpandable fixed seam, by means of which the functional-layer end region on the sole side is joined to the inner sole, but not to the outer-material end region on the sole side, is created in addition to the joining device. 
     
     
         16 . Method according to  claim 1 , in which the outer material is made to end at a predetermined distance above the inner sole, the distance between the outer material and the inner sole is bridged by a strip of material impermeable to sealing material or liquid sole material, the strip of material is joined to the outer material by means of a top seam and to the functional layer and/or to the inner sole by means of a bottom seam and at least the top one of the two seams is formed by a joining device, which can be flowed through and which is in the form of a seam which can expand as a result of loose sewing or sewing with an extensible yarn.