The soft membrane ceiling belongs to the flexible ceiling, which is commonly known as the light membrane.

It is a kind of packaging film with comprehensive properties. It has good transparency and luster, good air tightness and fragrance retention, medium moisture resistance and low moisture permeability.

Polyvinyl chloride （abbreviated: PVC) is the world's third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene. About 40 million tonnes are produced per year.

Most vinyl products contain plasticizers which dramatically improve their performance characteristic. The most common plasticizers are derivatives of phthalic acid. The materials are selected on their compatibility with the polymer, low volatility levels, and cost.

The Process of the Soft/ Flexible PVC Film:1） Powder 2） Plasticizing 3） Filtering 4） Calendering 5） Cooling 6） Packing

There are two kind of PVC film: soft PVC film (flexible PVC film) and rigid PVC film. Soft PVC film with superior elongation and tensile strength and freezing resistance, good for printable and sealing, be made to be transparent film.