MonoSol has introduced a copolymer based PVOH water soluble film said to be ideal for a wide range of products, including highly acidic and highly alkaline chemicals. Developed for compatibility with low pH products that historically challenged PVOH films, the M-8900 grade dramatically widens chemical compatibility, allowing a much more diverse range of products to be packed in unit doses, the company states.
The new film is compatible with acidic formulations, including sulphamic acid, sodium bisulphate, potassium phosphate, monobasic, sodium phosphate, monobasic, calcium phosphate, monobasic, and ammonium phosphate, hemibasic. In fact, all chemical formulations having relatively strong acid reactions in water are candidates, it is claimed.
M-8900 also offers stability with boron-containing compounds, which have historically been notoriously incompatible with PVOH films.
According to MonoSol, packaging chemicals in water soluble films allows manufacturers to reduce the environmental impact of packaging and improve the safe handling of their products by providing users with a pre-packaged, pre-measured unit-dose product. "The package dissolves completely, eliminating the need to dispose of contaminated packages or intermediary mixing containers," it states. "And since water soluble pouches eliminate direct contact between the chemical product and the user, manufacturers of toxic products alleviate product safety concerns."
M-8900 film is available in thicknesses ranging from 38-76 micron.
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