A Comprehensive Overview of Types of Leather Chemicals Leather is a versatile and durable material that is used in a wide range of products, from shoes and bags to furniture and car interiors. The production of leather involves a complex chemical process that transforms raw animal hides into a finished leather material with unique properties. In this article, we will explore the different types of chemicals used in leather production. Tanning Agents Tanning agents are the most important chemicals used in leather production, as they are responsible for transforming raw hides into durable and long-lasting leather. Tanning agents work by cross-linking the collagen fibers in the hide, creating a stable, three-dimensional structure that resists decomposition. There are several different types of tanning agents, including: Chrome tanning agents: Chrome tanning agents are the most common type of tanning agent used in leather production. Vegetable tanning agents: Vegetable tanning agents are made from natural materials such as tree bark, leaves, and fruits. Synthetic tanning agents: Synthetic tanning agents are made from chemical compounds such as aldehydes. Innovative tanning agents like Zeology: Zeolite-based tanning agent that is the most sustainable alternative to traditional tanning agents. Read more about the pros and cons of the different tanning agents Retanning Agents Retanning agents are used to add bulk, weight, and desired characteristics to the leather after it has been tanned. They can be used to modify the leather’s physical properties, such as its tensile strength, tear strength, and roundness of the leather. Retanning agents are typically made from natural or synthetic materials, such as synthetic resins, vegetable extracts, or protein-based materials. Our retanning agents Fatliquors Fatliquors are the next step in the wet end process and are used to soften and lubricate the leather, making it more pliable and resistant to cracking. They are typically made from natural oils and fats, such as fish oil or lanolin. Using fatliquors based on natural oils give the advantage of having a high bio-based level. Fatliquors can be applied at different stages of the tanning process, depending on the desired characteristics of the finished leather. Special fatliquors can also be used to add a water resistance to the leather, for example for outdoor footwear. More about types of fatliquor Dyestuffs Dyestuffs are used to give leather its characteristic color and can be applied at different stages of the tanning process. There are two main types of dyestuffs used in leather production: Aniline dyes: Aniline dyes are transparent dyes that penetrate deeply into the leather, giving it a natural, even color. Aniline-dyed leather is known for its soft, supple feel and natural grain patterns. Pigment dyes: Pigment dyes are opaque dyes that sit on the surface of the leather, giving it a uniform color. Pigment-dyed leather is often used for fashion and upholstery applications. Discover our metal free dyestuff Finishing Chemicals Finishing chemicals are used to enhance the appearance and performance of leather products. There are several different types of finishing chemicals, including: Resins: Resins are used to create a protective coating on the surface of the leather, making it more resistant to water, stains, and wear. Polishes: Polishes are used to create a shiny, glossy finish on leather products. They can be made from natural waxes, such as beeswax or carnauba wax, or synthetic materials. More about leather finishing In conclusion, the production of leather involves a complex chemical process that relies on several different types of leather chemicals, including tanning agents, retanning agents, fatliquors, dyestuffs, and finishing chemicals. Each type of chemical plays a crucial role in creating a durable, long-lasting, and attractive finished product. By understanding the different types of leather chemicals used in leather production, consumers can make more informed decisions about the leather products they buy and use. As a leading supplier of leather chemicals, Royal Smit & Zoon has a deep understanding of the complex chemical processes involved in leather production. With over 200 years of experience, the company has developed a wide range of high-quality chemicals that are used by tanners and leather manufacturers around the world. Our product portfolio includes tanning agents, retanning agents, fatliquors, dyestuffs, and finishing chemicals, as well as customized solutions that meet specific customer needs. Our company’s commitment to sustainability and innovation ensures that its products are not only effective but also environmentally friendly and socially responsible. With Smit & Zoon’s expertise and product offerings, leather manufacturers can be confident that they are using the best possible chemicals for their products. How can we help you? Do not hesitate to reach out. Contact us Interesting for you Discover more on Chemicals & substances Bisphenols and the relation to leather Bisphenols is a topic of discussion in the leather industry, since the restriction proposal of The European Chemicals Agency. We explain the basics on bisphenols focusing on the leather industry. What chemicals are used to tan leather? The most used chemical to tan leather is chromium III. Other chemicals used in tanning are aldehyde, vegetable tannins and zeolites. Fatliquors for leather making Fatliquors are a type of chemicals used in the leather manufacturing process to add softness, flexibility, and durability to leather. They are typically added after the leather has been tanned and dried, but before it is finished. Chemicals & substances Discover Stay informed Receive the latest company news and industry updates Subscribe Share this:
