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Polypropylene Wax for Synthetic Leather Manufacture: Properties and Applications

by:Sainuo     2023-11-18

Polypropylene Wax for Synthetic Leather Manufacture: Properties and Applications


Polypropylene wax has emerged as an essential component in the production of synthetic leather. This article explores the properties and applications of polypropylene wax, shedding light on why it has become a go-to material in the manufacturing industry.

Understanding Polypropylene Wax

Polypropylene wax, also known as PP wax, is a thermoplastic polymer derived from propylene gas. It is widely used in various industries, including the leather manufacturing sector. Its molecular structure consists of linear hydrocarbons, making it an ideal additive for enhancing the properties of synthetic leather.

Properties of Polypropylene Wax

1. Low Melting Point

Polypropylene wax has a relatively low melting point, typically ranging from 130掳C to 170掳C. This property allows for easy blending and incorporation into the synthetic leather manufacturing process. The low melting point facilitates efficient dispersion throughout the leather matrix.

2. High Chemical Resistance

Polypropylene wax exhibits excellent chemical resistance, making it an ideal choice for enhancing the durability and longevity of synthetic leather. This property ensures that the material remains unaffected by common solvents and chemicals, thus extending the lifespan of the leather.

3. Improved Scratch and Abrasion Resistance

The addition of polypropylene wax in synthetic leather helps improve its scratch and abrasion resistance. This property is crucial for applications that require high durability, such as automotive upholstery and fashion accessories. The wax creates a protective layer on the surface, minimizing the risk of scratches and wear.

4. Low Coefficient of Friction

Polypropylene wax reduces the coefficient of friction in synthetic leather, providing a smooth and luxurious feel. This property enhances the tactile experience and makes the material more appealing to consumers. The reduced friction also prevents sticking or squeaking, particularly in products like bags or wallets.

5. Thermal Stability

Polypropylene wax offers excellent thermal stability, enabling the synthetic leather to withstand high temperatures without degrading. This property is vital in applications where the material is subject to heat exposure, such as automotive interiors. The wax helps maintain the leather's structural integrity and prevents deformation.

Applications of Polypropylene Wax in Synthetic Leather Manufacture

1. Coating and Lamination

Polypropylene wax is commonly used as a coating material for synthetic leather. It enhances the material's surface smoothness, gloss, and scratch resistance. The wax is engineered to bond effectively with the leather matrix during the lamination process, resulting in a high-quality product.

2. Anti-blocking Agent

In the production of synthetic leather, polypropylene wax acts as an anti-blocking agent. It helps prevent the sticking of layers during storage or transportation, ensuring that the material remains in pristine condition. This application is particularly useful for roll goods or stacked sheets of synthetic leather.

3. Lubricant and Processing Aid

Polypropylene wax serves as a lubricant and processing aid during the manufacturing process of synthetic leather. It facilitates the extrusion and calendering processes by reducing friction between the material and processing machinery. This application results in improved productivity and cost efficiency.

4. Texturizing Agent

Polypropylene wax is utilized as a texturizing agent in synthetic leather manufacture. It provides a three-dimensional effect, creating patterns and imitations of natural leather textures. The wax's low melting point ensures that it can be easily molded and transferred onto the synthetic leather surface.

5. Surface Modifier

Polypropylene wax acts as a surface modifier in synthetic leather, enhancing its aesthetic appeal. By adding a layer of wax, manufacturers can achieve a glossy or matte finish, depending on the desired outcome. Additionally, the wax improves the material's light stability, reducing the chances of discoloration over time.


Polypropylene wax has revolutionized the synthetic leather manufacturing industry with its range of beneficial properties and diverse applications. Its contribution to enhancing durability, scratch resistance, and overall aesthetics showcases why it is an integral component in the production of synthetic leather. As technology continues to advance, polypropylene wax will likely play an even more significant role in shaping the future of synthetic leather manufacture.

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