How is foam-backed vinyl flooring produced?

Foam-backed vinyl flooring is produced by applying a specialized mixture to the underside of a premanufactured vinyl sheet. This process involves the following steps:

• Preparation: A paste consisting of vinyl resin and a blowing agent is prepared. Blowing agents are substances that decompose at the plastic's fusion point to release gas bubbles, which create a spongelike structure within the material.12
• Application: A thin layer of this paste is spread onto the back of a premanufactured vinyl sheet.2
• Heating: The sheet is passed through a heated tunnel. The heat triggers the decomposition of the blowing agent, causing it to release gas. This gas forms the foam backing, which is then fully bonded to the vinyl sheet.2

This method allows for the creation of a cushioned, flexible floor covering that can be further customized with various surface designs, such as rotogravure printing or embossing, to achieve specific aesthetic effects.2