Leather and similar materials are formed using graduated molds. A solvent is applied to the leather to saturate the leather. The saturated leather is put through a series of molds, each being more pronounced than the previous. An elastomer is applied after molding to provide structural support for features created through molding.

Leather and similar materials are formed using graduated molds. A solvent is applied to the leather to saturate the leather. The saturated leather is put through a series of molds, each being more pronounced than the previous. An elastomer is applied after molding to provide structural support for features created through molding.

A method of preparing recycling leather sheets comprise: pre-processing where leather wastes are neutralized and fatliquoring agents are adhered; separating leather fibers from the leather wastes that has undergone the pre-processing; mixing the separated leather fibers with fibers for improving a tensile strength of the separated leather fibers; and forming sheets by combining the mixed leather fibers and raw fabrics for floor. The method of preparing recycling leather sheets in the present invention may reduce environmental pollution by preparing recycling leather sheets through physical combination without using adhesives.

A method of preparing recycling leather sheets comprise: pre-processing where leather wastes are neutralized and fatliquoring agents are adhered; separating leather fibers from the leather wastes that has undergone the pre-processing; mixing the separated leather fibers with fibers for improving a tensile strength of the separated leather fibers; and forming sheets by combining the mixed leather fibers and raw fabrics for floor. The method of preparing recycling leather sheets in the present invention may reduce environmental pollution by preparing recycling leather sheets through physical combination without using adhesives.

A manufacturing process of three-dimensional leather objects, including the following steps: applying a hardener additive on the flesh side of a piece of leather, positioning the flesh side of the piece of leather on a shape, introducing the shape with the piece of leather in a vacuum sack, applying rough vacuum in the vacuum sack, heating the vacuum sack with the shape and the piece of leather, and progressively applying vacuum during the heating step, stopping the vacuum pressure and cooling the vacuum sack with the shape and the piece of leather, opening the sack and extracting the shape with the piece of leather from the vacuum sack and removing the piece of leather from the shape in such a way that the piece of leather has the shape of a three-dimensional object.

A manufacturing process of three-dimensional leather objects, including the following steps: applying a hardener additive on the flesh side of a piece of leather, positioning the flesh side of the piece of leather on a shape, introducing the shape with the piece of leather in a vacuum sack, applying rough vacuum in the vacuum sack, heating the vacuum sack with the shape and the piece of leather, and progressively applying vacuum during the heating step, stopping the vacuum pressure and cooling the vacuum sack with the shape and the piece of leather, opening the sack and extracting the shape with the piece of leather from the vacuum sack and removing the piece of leather from the shape in such a way that the piece of leather has the shape of a three-dimensional object.

A method for manufacturing a breathable hybrid leather includes: a raw material supply step of supplying the natural leather of recycled leather; a step of applying a hot-melt adhesive to the upper surface of the leather raw material; a bonding step of supplying a fabric to the upper surface of the adhesive layer and applying heat and pressure to the leather raw material, the adhesive layer, and the fabric to obtain a bonded fabric; and a step of ironing and coating the bonded fabric a plurality of times.

A method for manufacturing a breathable hybrid leather includes: a raw material supply step of supplying the natural leather of recycled leather; a step of applying a hot-melt adhesive to the upper surface of the leather raw material; a bonding step of supplying a fabric to the upper surface of the adhesive layer and applying heat and pressure to the leather raw material, the adhesive layer, and the fabric to obtain a bonded fabric; and a step of ironing and coating the bonded fabric a plurality of times.

A method of preparing recycling leather sheets comprise: pre-processing where leather wastes are neutralized and fatliquoring agents are adhered; separating leather fibers from the leather wastes that has undergone the pre-processing; mixing the separated leather fibers with fibers for improving a tensile strength of the separated leather fibers; and forming sheets by combining the mixed leather fibers and raw fabrics for floor. The method of preparing recycling leather sheets in the present invention may reduce environmental pollution by preparing recycling leather sheets through physical combination without using adhesives.

A method of preparing recycling leather sheets comprise: pre-processing where leather wastes are neutralized and fatliquoring agents are adhered; separating leather fibers from the leather wastes that has undergone the pre-processing; mixing the separated leather fibers with fibers for improving a tensile strength of the separated leather fibers; and forming sheets by combining the mixed leather fibers and raw fabrics for floor. The method of preparing recycling leather sheets in the present invention may reduce environmental pollution by preparing recycling leather sheets through physical combination without using adhesives.