Method for Manufacturing Waterproof Footwear

Abstract

The invention provides a method of manufacturing waterproof shoe component and footwear using the same. The method includes the steps of, attaching a TPU waterproof and breathable membrane on an ordinary cloth, processing to get fabric A; attaching a layer of TPU waterproof and breathable membrane on an ordinary cloth, then attaching a layer of TC cloth on the TPU layer, processing to get fabric B; using fabric A or fabric B to stitch a sleeve, which matches with a pre-designed shoe pattern; making a shoe mould according to the shape of the pre-designed shoe pattern, in which the sleeve can coat on cutting fabric A into a number of straps according to the numbers of the stitching lines on the sleeve, seamless stitching the straps into a whole case along the distribution of the stitching lines; then coating the whole case onto the sleeve, with the TPU layer of the case adown and covering the stitching lines; putting the sleeve that covered the case into the shoe mould, then use the hot press molding by putting the shoe into a high frequency hot press machine to get into shape.

What is claimed is: 
     
         1 . A method of manufacturing waterproof footwear, comprises the steps of:
 fabrics attaching: attaching a TPU waterproof and breathable membrane on an ordinary cloth, processing to get fabric A; attaching a layer of TPU waterproof and breathable membrane on an ordinary cloth, then attaching a layer of TC cloth on the TPU layer, processing to get fabric B;   making sleeve: using fabric A or fabric B to stitch a sleeve, which matches with a pre-designed shoe pattern;   making shoe mould: making a shoe mould according to the shape of the pre-designed shoe pattern, in which the sleeve can coat on;
 coating shoe stretch: cutting fabric A into a number of straps according to the numbers of the stitching lines on the sleeve, seamless stitching the straps into a whole case along the distribution of the stitching lines; then coating the whole case onto the sleeve, with the TPU layer of the case adown and covering the stitching lines; 
 hot-press molding: putting the sleeve that covered the case into the shoe mould, then use the hot press molding by putting the shoe into a high frequency hot press machine to get into shape. 
   
     
     
         2 . The method of  claim 1 , wherein the step of hot-press molding further including the steps of pre-heating, welding, and hot pressing. 
     
     
         3 . The method of  claim 2 , wherein the parameters of hot-press molding are pre-heating for 0 to 10 seconds, welding for 15 to 35 seconds, hot pressing under temperature of 150° C. to 280° C. for 5 to 10 seconds. 
     
     
         4 . The method of  claim 2 , wherein the shoe mould includes four detachable portions, which are upper mould, lower mould, right mould and left mould. 
     
     
         5 . The method of  claim 4 , wherein the steps of pre-heating, welding, and hot pressing further including pre-heating, welding, and hot pressing on upper and lower moulds, pre-heating, welding, and hot pressing on right and left moulds. 
     
     
         6 . The method of  claim 5 , wherein the parameters of pre-heating, welding, and hot pressing on upper and lower moulds are as pre-heating for 0 to 5 seconds, welding for 0 to 15 seconds, hot pressing under temperature of 150° C. to 280° C. for 0 to 5 seconds. 
     
     
         7 . The method of  claim 5 , wherein the parameters of pre-heating, welding, and hot pressing on right and left moulds are as pre-heating for 0 to 5 seconds, welding for 0 to 20 seconds, hot pressing under temperature of 150° C. to 280° C. for 0 to 5 seconds. 
     
     
         8 . The method of  claim 1 , wherein the pre-designed shoe pattern is toed shoe pattern. 
     
     
         9 . The method of  claim 8 , wherein the toed shoe pattern has one toe, two toes, three toes, four toes or five toes. 
     
     
         10 . The method of  claim 8 , wherein the distribution of the stitching lines on the toes is along the direction from toe cap to toe wrap. 
     
     
         11 . A method of manufacturing waterproof shoe component, comprises the steps of:
 fabrics attaching: attaching a TPU waterproof and breathable membrane on an ordinary cloth, processing to get fabric A; attaching a layer of TPU waterproof and breathable membrane on an ordinary cloth, then attaching a layer of TC cloth on the TPU layer, processing to get fabric B;   making sleeve: using fabric A or fabric B to stitch a sleeve, which matches with a pre-designed shoe pattern;   making shoe mould: making a shoe mould according to the shape of the pre-designed shoe pattern, in which the sleeve can coat on;   coating shoe stretch: cutting fabric A into a number of straps according to the numbers of the stitching lines on the sleeve, seamless stitching the straps into a whole case along the distribution of the stitching lines; then coating the whole case onto the sleeve, with the TPU layer of the case adown and covering the stitching lines;   hot-press molding: putting the sleeve that covered the case into the shoe mould, then use the hot press molding by putting the shoe into a high frequency hot press machine to get into shape.   
     
     
         12 . The method of  claim 1 , wherein the step of hot-press molding further including the steps of pre-heating, welding, and hot pressing. 
     
     
         13 . The method of  claim 2 , wherein the parameters of hot-press molding are pre-heating for 0 to 10 seconds, welding for 15 to 35 seconds, hot pressing under temperature of 150° C. to 280° C. for 5 to 10 seconds. 
     
     
         14 . The method of  claim 2 , wherein the shoe mould includes four detachable portions, which are upper mould, lower mould, right mould and left mould. 
     
     
         15 . The method of  claim 4 , wherein the steps of pre-heating, welding, and hot pressing further including pre-heating, welding, and hot pressing on upper and lower moulds, pre-heating, welding, and hot pressing on right and left moulds. 
     
     
         16 . The method of  claim 5 , wherein the parameters of pre-heating, welding, and hot pressing on upper and lower moulds are as pre-heating for 0 to 5 seconds, welding for 0 to 15 seconds, hot pressing under temperature of 150° C. to 280° C. for 0 to 5 seconds. 
     
     
         17 . The method of  claim 5 , wherein the parameters of pre-heating, welding, and hot pressing on right and left moulds are as pre-heating for 0 to 5 seconds, welding for 0 to 20 seconds, hot pressing under temperature of 150° C. to 280° C. for 0 to 5 seconds. 
     
     
         18 . The method of  claim 1 , wherein the pre-designed shoe pattern is toed shoe pattern. 
     
     
         19 . The method of  claim 8 , wherein the toed shoe pattern has one toe, two toes, three toes, four toes or five toes. 
     
     
         20 . The method of  claim 8 , wherein the distribution of the stitching lines on the toes is along the direction from toe cap to toe wrap.