The manufacturing process and development process of PVC leather can be elaborated from the following aspects:

Manufacturing process

Raw material preparation:

PVC resin is the main raw material, and plasticizers are usually added to make it have good plasticity.

Other auxiliary materials include pigments, fillers, etc.

Production process:

Direct Coating and Scraping Method: The PVC resin slurry is applied directly to the substrate, then dried and cured.

Calendering method: The texture is obtained through the stick, which requires post-foaming treatment and other processes.

Transfer coating method: the process of three knives and four baking, the PVC resin slurry is transferred to the substrate.

Extrusion method: The PVC resin slurry is extruded and coated on the substrate by an extruder.

Surface Treatment:

Steps such as dyeing, gilding, and silver stamping are included to increase the aesthetics and durability of the leather.

Final product:

After all the processing steps are completed, a synthetic leather material similar to natural leather is obtained.

History

Origins and early development:

PVC artificial leather is the first generation of artificial leather. In the 20s of the 20th century, scientists gradually developed PVC artificial leather through the analysis and study of the chemical composition and structure of natural leather, and the chemical modification of natural polymers.

Technology Evolution:

From a simple PVC coating to a complex polyurethane (PU) synthetic leather transformation, China has not only absorbed the international advanced technology, but also gradually formed its own production process and product characteristics through continuous technological innovation.

Future Trends:

With the improvement of environmental awareness and the continuous progress of technology, the future production of PVC artificial leather will pay more attention to environmental protection and sustainable development.

In summary, the manufacturing process of PVC leather involves a variety of production processes and surface treatment steps, and its development history has undergone a technological evolution from simple to complex since the early 20th century, and has been widely used in the market.