Poly-Vinylidene Chloride (PVDC) is a water-based coating often used to improve barriers and reduce permeability. It keeps food fresh, improves shelf life, and gives packaging an attractive high-gloss finish; all qualities that are behind the packaging industry’s preference for plastic. As a thermoplastic, PVDC is flexible, clear, and easily extruded. It clings well and resists oils and other chemicals, so it’s often used in pharmaceutical packaging. It’s easy to laminate, and if you need a more budget-friendly option, it can be mixed with cheaper monomers. One of the most popular of these consists of 85% vinylidene chloride and 15% vinyl chloride--more commonly known as Saran wrap.
The Formulated Polymers Blog
At Formulated Polymer Products we manufacture a wide range of water borne polymer bound compositions. Applications for these compounds include a range of adhesives including sprayable contact adhesives for furniture manufacture and cold seal adhesives for packaging, paper and film coatings and flame retardant textile coatings. Polyurethane foam impregnants impart several properties, including flame retardancy, oil resistance, conductivity and VOC absorbency.
It took 5 billion years to create the earth with it’s natural beauty , but it has taken less than 100 years of plastic film manufacture to help in reducing parts of the planet to a rubbish tip. It’s time to act now.
Copolymers of polyvinylidene chloride (pvdc) are not new and are well known for their use in demanding barrier packaging applications to minimise the permeation of moisture,oxygen and odours. The advantage of pvdc coating is it offers the flexible packaging converter a one stop cost effective process to provide a combination of all three barrier properties, for goods that are susceptible to a short shelf life if they are not provided with the correct level of protection.
Topics: Food Packaging