Patent ID: 6991691

Claim:
A process for manufacturing functional shoe insoles, comprising the steps of: admixing essential components consisting of Angelica , Ligusticum sp., Menthae Herba , Mugwort, charcoal, and Ostericum koreanum in a predetermined weight ratio with a subsidiary component selected from the group consisting of Amomum cardamomum L., clove, Astragalus membranaceus, Coptis chinensis, Cyperus rotundus L., Illicium verum, Teucrium veronicoides Maximowig, borneol, sawdust, cinnamon and combinations thereof, to prepare a functional herbal composition; cutting an outer sheet and a first and a second sheet into predetermined suitable sizes and laminating the sheets to one another via an adhesive to construct a tri-layer laminate, said sheets being selected from various fabrics and formed to receive the functional composition; molding a pair of the tri-layer laminates into a shape of a shoe insole by use of a press, with the first inner sheet of one laminate facing that of the other laminate; sewing the tri-layer laminates to each other along the lateral edge in such a manner that an inlet of a predetermined size is formed at a toe region of the laminate to introduce the functional herbal composition therethrough, inserting a subsidiary heel structure into the heel part of the sewn laminate and sewing the subsidiary heel structure to the laminate to form an insole sheet having a pocket; filling the herbal composition into the pocket through the inlet positioned at the toe region of the insole sheet; inserting a subsidiary toe structure into the inlet which remains unsewn at the toe region of the insole sheet and closing the inlet by sewing; spreading the herbal composition uniformly throughout the pocket and straightly sewing the insole sheet in the longitudinal direction to form a plurality of sewn lines at regular intervals; adding a finish sheet on the insole sheet along the edge and sewing the finish sheet to the insole sheet, said finish sheet being selected from the group consisting of hemp and wool fabrics; and forming holes of a predetermined size at predetermined intervals on an inside face of the insole sheet and fixing snap type buttons, each made of 100% pure copper, at the holes by pressing.