Tanex JG and Tanex L-KRIS two new tanning agents on sheepskin
The tanning industry, as a traditional industry with a long history, has always relied on all kinds of animal skins as raw materials for processing, and finally transformed into common leather products in our daily life. However, in the production process of leather, especially in the tanning stage,...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10459.1/466160 |
| Acceso en línea: | https://hdl.handle.net/10459.1/466160 |
| Access Level: | acceso abierto |
| Palabra clave: | Leather Tanning agent Tanning industry Tanning process |
| Sumario: | The tanning industry, as a traditional industry with a long history, has always relied on all kinds of animal skins as raw materials for processing, and finally transformed into common leather products in our daily life. However, in the production process of leather, especially in the tanning stage, the traditional process uses some harmful substances that can not only pose a threat to the health of workers, but also cause serious pollution to the environment. Therefore, finding a tanning method that is both environmentally friendly and efficient has become an urgent problem for the tanning industry. In this context, the emergence of two new tanning agents, TANEX JG and TANEX L-KRIS, brings new hope to leather production. These two tanning agents belong to isoprene resins, which are resin materials synthesized from isoprene as the main raw material. Here are the details and features of isoprene resins: Main raw material: isoprene, also known as 2-methyl-1,3-butadiene, is an important organic compound, commonly used in the synthesis of rubber, resins and other polymer materials. Synthesis method: Isoprene can be copolymerized with other monomers (e.g., styrene) to produce resin materials with specific structures and properties. Stickiness: Isoprene resins generally have good adhesion and can be used to make adhesives and sealants. Elasticity: Some isoprene resins have the properties of thermoplastic elastomers, such as TPR resins, which exhibit good elasticity and abrasion resistance during processing and use. Stability: The thermal stability of isoprene resins can be affected by catalyst residues during their synthesis. During the synthesis process, care needs to be taken to control the amount of catalyst and the amount of residue to ensure the thermal stability of the resin. As an alternative to traditional tanning agents, they not only have excellent tanning properties, but are also environmentally friendly, non-toxic, and have minimal impact on the environment and human health. Therefore, this study aims to optimize the tanning process by using these two new tanning agents to improve the quality and performance of the leather.In our research, we focused on two key operational processes:tanning and retanning. In the main tanning stage, we first observe the changes in the tanning effect under different conditions by adjusting the pH value. This is because pH is one of the key factors affecting the binding of tanning agents to leather fibres, and the right pH promotes an effective binding between tanning agents and leather fibres, thereby improving the quality and performance of leather. Next, we adjusted the dosage of the two tanning agents, TANEX JG and TANEX L-KRIS, and observed the difference in tanning effect at different amounts. The aim of this step is to find the optimal amount of tanning agent to do, which will guarantee the tanning results and reduce the cost. Through comparative experiments, we determined the optimal range of tanning agent dosage, which provided strong support for subsequent industrial production. During the retanning phase, we compared the tanning effects of TANEX JG and TANEX L-KRIS to two tanning agents. Through comparative experiments, we found that both tanning agents can significantly improve the softness and elasticity of the leather during the retanning process, while maintaining the strength and stability of the leather. This discovery provides an important reference for us to further optimize the tanning process. Overall, this study provides strong support for the production of high-quality, sustainable and non-toxic leather by exploring the optimal conditions and factors for the two new tanning agents, TANEX JG and TANEX L-KRIS. Although there are some limitations in this study, such as the use of only specific types of leather and laboratory conditions, our results still have important guiding significance for the future development of tanning technology. With the continuous advancement of technology and the growing market demand, we believe that these two new tanning agents will play an increasingly important role in the future tannery industry. |
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