Sustainable process from tannery solid waste as an alternative material in the leather goods industry | Sustainable process from tannery solid waste as an alternative material in the leather goods industry

English. This study proposes a sustainable method to utilize solid waste from tanneries, specifically leather shavings, to create an alternative material for the leather goods industry. Focused on an experimental methodology, it includes the design and development of a process comprising three units: raw material conditioning, processing, and obtaining the alternative material. In the first stage, leather shavings are refined for suitable physical and chemical characteristics. In the second stage, they are mixed with resins and molded, and in the third stage, they are pressed to form leather sheets. This research aims to design and optimize a sustainable process that allows the maximum use of sawn waste and materials to improve the mechanical properties of the final product, such as tensile strength and mix cohesion. Two suitable resins were identified: Addix E15 and Vinnapas 401, with the latter proving the most cost-effective and efficient. The results provide a solid foundation for future research and industrial applications. The study concludes that this approach not only reduces the environmental impact of the leather industry but also introduces a competitive alternative material for leather goods. Implementing this technique could represent a significant advancement in industrial waste management and the promotion of sustainable practices, benefiting both the environment and nearby communities.

Spanish; Castilian. This study proposes a sustainable method to utilize solid waste from tanneries, specifically leather shavings, to create an alternative material for the leather goods industry. Focused on an experimental methodology, it includes the design and development of a process comprising three units: raw material conditioning, processing, and obtaining the alternative material. In the first stage, leather shavings are refined for suitable physical and chemical characteristics. In the second stage, they are mixed with resins and molded, and in the third stage, they are pressed to form leather sheets. This research aims to design and optimize a sustainable process that allows the maximum use of sawn waste and materials to improve the mechanical properties of the final product, such as tensile strength and mix cohesion. Two suitable resins were identified: Addix E15 and Vinnapas 401, with the latter proving the most cost-effective and efficient. The results provide a solid foundation for future research and industrial applications. The study concludes that this approach not only reduces the environmental impact of the leather industry but also introduces a competitive alternative material for leather goods. Implementing this technique could represent a significant advancement in industrial waste management and the promotion of sustainable practices, benefiting both the environment and nearby communities.