EVA Bags
Ethylene-vinyl acetate copolymers (EVAC, formerly EVA) are copolymers made from ethylene and vinyl acetate.
These bags are also referred to as melt bags due to their low melting point.
We manufacture three different grades with melting points ranging from 59°C to 105°C.
EVA is available as granules, aqueous dispersion, powder, and also as foil material.
This plastic has high heat resistance and good aging stability.
The bags are used in various applications, such as the production of colored PVC, the tire industry, and more.
Process for producing EVA
The process for producing EVA is largely similar to that of producing LDPE. However, the properties and applications can vary significantly depending on the proportion of copolymerized vinyl acetate.
Vinyl acetate contents of up to 7% are primarily used to improve properties, particularly increasing elongation at break for films. Approximately half of EVA production is dedicated to this use.
EVA with a vinyl acetate content of 7% to 18% is often used as a standalone material for specialized applications.
Examples include cold-resistant retractable spouts for canisters, films for agriculture and horticulture, shrink wrap (office supplies, solar modules), shower curtains, flooring, roofing membranes, and electrical cables.
The next class of EVA, with up to 28% vinyl acetate, is mainly used as a hot melt adhesive, which is employed in high-quality tufted carpets, needle-felt fabrics for fiber bonding, and bookbinding.
When the vinyl acetate content exceeds 30% up to 90%, the result is a rubber-like elastomer. This is primarily used for shoe soles or as a polyblend in combination with other elastomers. Source:Wikipedia