TH25546A - Coated products for use in the manufacture of shoes - Google Patents

Abstract

A coated sole (2) for shoes consists of an upper layer made of a flexible foam material (4) that is shaped (6) to fit the shoe, and a lower layer made of a fiber mesh (10) that is shaped to fit the structure (6) of the upper layer (4). The fiber mesh (10) is made up of numerous fibers (12) which are pierced into the foam material of the upper layer (4), for the integration of the upper layer (10) with the lower layer (4) and the stiffening (14) for the stiffening of the sole (2). A popular method is that individual fiber fragments (12) are pierced into the foam material (4), which protrudes from the outer surface (16) and forms a soft covering (17) on it. The coated product (2) is suitable for use in shoes as well as any type of slip-resistant sole, providing several advantages from the flexibility of the foam, the stiffening and heat setting of the fiber mesh, and the softness of the soft covering. It is covered or sealed on top of the foam.

Claims (27)

1. The coated product (2) is suitable for use in the manufacture of shoes as it consists of an upper layer made of flexible foam material (4) and a lower layer made of a fibrous mesh (10) consisting of numerous strands (12) of fibers that are inserted into the foam material of the upper layer (4) to integrate the lower layer (10) with the upper layer (4) and a rigid part (14) to provide stiffness to the product (2). 2. The coated product (2), as referred to in claim 1, is of the nature of a fibrous mesh (10) which includes an unwoven mesh composed of a multitude of fibers selected from a group of synthetic fibers, artificial fibers, natural fibers and mixtures of these. 3. The coated sole (2) for shoes consists of an upper layer made of flexible foam material (4) and has a structural shape (6) that conforms to the shoe, and a lower layer made of fiber mesh (10) and has a shape that conforms to the structure of the upper layer (4). The fiber mesh (10) consists of numerous fibers (12), fragments of fibers that have been pierced into the foam material of the upper layer (4) to integrate the lower layer (10) with the upper layer (4), and a rigid part (14) to provide stiffness to the sole (2). 4. The coated sole (2), as referred to in claim 3, is characterized by the upper layer (4) having an outer surface (16) opposite to the lower layer (10), and by the fragments of fibers (12) penetrating into the foam material (4) protruding from the outer surface described above (16), and thus providing a soft covering (17). 5. Coated soles (2), as referred to in claim 4, are characterized by the fact that the woven mesh (10) includes a non-woven mesh composed of a number of selected fibers from a group of synthetic, artificial, natural fibers and mixtures of these. 6. The coated sole (2), as referred to in claim 5, is characterized by synthetic fibers (12) being selected from a group of polyester, polypropylene, nylon and mixtures thereof. 7. The coated sole (2), as referred to in claim 5, is characterized by the presence of an additional coating (9) embedded in the fiber mesh (10). 8. Coated soles (2) As referred to in Claim 7, the reinforced coating (9) is made of scrim fibers. 9. Coated soles (2) As referred to in claim number 8, the scrim fibers are selected from a group of scrim, polypropylene, polyester, nylon and polyethylene fibers. 10. Coated soles (2) As referred to in claim 8, the scrim fibers are coated with a coating of 1 to 3 millimeters thickness, selected from a group of polypropylene, polyester, nylon and polyethylene coatings. 11. The coated sole (2), as referred to in claim 5, is of the nature that the foam material (4) is composed of open or closed cell synthetic foam. 12. The coated sole (2), as referred to in claim 11, is characterized by synthetic foam (4) composed of polymers selected from a group of polyurethane, polyester, polyether, crosslinked polyethylene, polyvinyl chloride and mixtures of these. 13. The coated sole (2), as referred to in claim 5, is characterized by the rigid portion (14) of the mesh (10) being obtained by inserting a selection of components from a group consisting of latex, a thermoplastic resin solution, and a heat-curing resin solution into the outer surface (20) of the mesh (10). 14. The coated sole (2), as referred to in claim 5, is characterized by the fact that the fiber mesh (10) has an outer surface (20) opposite to the top layer (4). The fiber mesh (10) is composed of numerous self-forming fibers which have given melting points and numerous co-bonding fibers which have melting points lower than the melting points of the self-forming fibers, and the solid portion (14) of the fiber mesh (10) is obtained by setting the outer surface (20) edge of the fiber mesh (10) at a temperature greater than the melting point of the co-bonding fibers and lower than the melting point of the self-forming fibers. 15. The coated sole (2), as referred to in claim 14, is characterized by a fiber mesh (10) composed of 10 percent to 80 percent by weight of co-bonded fibers. 16. Coated sole (2) As referred to in claim 13, it is characterized by the co-bonding fibers being selected from a group of polyester, copolyester, polyethylene, polypropylene and main wrapping fibers. 17. The coated sole (2), as referred to in claim 14, is characterized by a fiber mesh (10) composed of conductive fibers. 18. The coated sole (2), as referred to in claim 5, is characterized by fibers (12) having a size between 0.7 and 25 dtex. 19. The coated sole (2), as referred to in claim 18, is characterized by a fiber mesh (10) having a surface density of between 70 and 1000 g/mm². 20. The coated sole (2), as referred to in claim 5, is of the nature that the fibers (12) are of the heat-resistant type. 21. The coated sole (2), as referred to in claim 5, is of the nature that the fiber mesh (10) is made up of fibers (12) which contain a substance that prevents the growth of fungi or bacteria. 22. The coated sole (2), as referred to in claim 5, is characterized by the presence of a reinforced fabric layer (18) which is bonded together with the foam upper layer (4). 23. The method for producing the coated product (2) is suitable for use in the manufacture of shoes and consists of the following steps: a) punching holes in the fiber mesh layer (10) made of numerous fibers (12) into the flexible foam layer (4), so that the aforementioned fiber fragments penetrate the foam material; and b) hardening the (14) portion of the fiber mesh (10) in order to provide stiffness to the product (2). 24. The method referred to in claim 21 is characterized by the following hardening process b) consisting of the following steps: placing a selection of components from the group of latex, thermoplastic resins and heat-curing resins into the fiber mesh (10), partially heating the fiber mesh (10) to temperatures between 100°C and 200°C, and cooling the fiber mesh (10). 25. The method referred to in claim 24 is characterized by the fiber mesh (10) being incorporated into the resin in an amount of between 100 and 350 grams per millimeter. 26. The method referred to in claim 25 is such that the fibrous mesh (10) is composed of numerous self-forming fibers whose melting points are given and numerous co-bonding fibers whose melting points are lower than the melting points of the self-forming fibers, and the solidification process b) consists of the following steps: setting the outer surface (20) of the fibrous mesh (10) for the given time at a temperature higher than the melting point of the co-bonding fibers and lower than the melting point of the self-forming fibers, and cooling the fibrous mesh (10). 27. The method referred to in claim 23, the fiber mesh (10) consists of a reinforcing coating that is embedded in the fiber mesh (10) and a method consisting of additional steps c) of compressing the coated sole to make the fiber mesh (10) denser. (Clause 27, page 5, figure 6)