The present invention relates to a spreading machine for roller leather finishing. The machine includes a drawing cylinder and an engraved spreading cylinder. The drawing cylinder acts as a driving roller for a rubber conveyor belt wound between the driving roller and an idle roller. The drawing cylinder has a conveying surface and a rubber layer. In each operating configuration, the conveying surface of the rubber conveyor belt is tangent to the engraved spreading cylinder in a point of tangency (P), and the idle roller has a leather-detachment roller having a diameter within the range of 10 and 80 mm.

The present invention relates to a spreading machine for roller leather finishing. The machine includes a drawing cylinder and an engraved spreading cylinder. The drawing cylinder acts as a driving roller for a rubber conveyor belt wound between the driving roller and an idle roller. The drawing cylinder has a conveying surface and a rubber layer. In each operating configuration, the conveying surface of the rubber conveyor belt is tangent to the engraved spreading cylinder in a point of tangency (P), and the idle roller has a leather-detachment roller having a diameter within the range of 10 and 80 mm.

A system and method for fresh bovine hide splitting includes a hide splitting machine configured to split a fresh bovine hide into a top grain and a collagen sheet. The top grain may be used for leather products. The collagen sheet may be processed with at least one of a maceration process or a drying process to produce a fresh bovine hide raw material product without the addition of a liming or bluing process. The fresh bovine hide raw material product may not include residues remaining following a liming process or bluing process. The fresh bovine hide raw material product may be usable in downstream products for human consumption including gelatin.

A system and method for fresh bovine hide splitting includes a hide splitting machine configured to split a fresh bovine hide into a top grain and a collagen sheet. The top grain may be used for leather products. The collagen sheet may be processed with at least one of a maceration process or a drying process to produce a fresh bovine hide raw material product without the addition of a liming or bluing process. The fresh bovine hide raw material product may not include residues remaining following a liming process or bluing process. The fresh bovine hide raw material product may be usable in downstream products for human consumption including gelatin.

Disclosed is an apparatus for dry-manufacturing recycled leather comprising air-laid material; and recycled leather manufactured using the apparatus for dry-manufacturing recycled leather. The apparatus for dry-manufacturing recycled leather molds leather fibers and general fibers, which are mixed using air-laid material, and thus a conventional carding process is not required, and recycled leather manufactured thereby has a high tensile strength.

A reconstituted-leather-manufacturing process includes a progressively increasing application of pressure to an aqueous leather solution to form a web of leather fibers. The solution/web may be dewatered to an extent before the first application of a pressure so that the solution/web consistency is on the order 29-55% (fiber to web/solution, by weight) when the first pressure of the progressive sequence of pressures is applied. Tannin (and various chemicals) may be added to the solution. The progressive pressing of the solution/web may be followed by a progressive drying of the web by application of a sequence of increasing temperatures via drying vessels.

A system and method for fresh bovine hide splitting includes a hide splitting machine configured to split a fresh bovine hide into a top grain and a collagen sheet. The top grain may be used for leather products. The collagen sheet may be processed with at least one of a maceration process or a drying process to produce a fresh bovine hide raw material product without the addition of a liming or bluing process. The fresh bovine hide raw material product may not include residues remaining following a liming process or bluing process. The fresh bovine hide raw material product may be usable in downstream products for human consumption including gelatin.

A system and method for fresh bovine hide splitting includes a hide splitting machine configured to split a fresh bovine hide into a top grain and a collagen sheet. The top grain may be used for leather products. The collagen sheet may be processed with at least one of a maceration process or a drying process to produce a fresh bovine hide raw material product without the addition of a liming or bluing process. The fresh bovine hide raw material product may not include residues remaining following a liming process or bluing process. The fresh bovine hide raw material product may be usable in downstream products for human consumption including gelatin.

The present invention refers to the process of obtaining ‘leather bone’ type snacks, commonly used by dog tutors as snacks and as a treat for the animal in dressage processes, comprised of simple stages of execution, one of the stages being chemical and other ones being mechanical, and free of components potentially harmful to the animal's health, such as flavorings, dyes, glue and resins, thus solving a technical problem related to the need to minimize risks to animal health, due to the use of harmful components in the manufacturing process of the product.

The present invention relates to a spreading machine for roller leather finishing. The machine includes a drawing cylinder and an engraved spreading cylinder. The drawing cylinder acts as a driving roller for a rubber conveyor belt wound between the driving roller and an idle roller. The drawing cylinder has a conveying surface and a rubber layer. In each operating configuration, the conveying surface of the rubber conveyor belt is tangent to the engraved spreading cylinder in a point of tangency (P), and the idle roller has a leather-detachment roller having a diameter within the range of 10 and 80 mm.