KURARAY Co., Ltd.

FAQ

FAQ

How long does it take for Water-soluble POVAL FILM to dissolve?
Although it differs by brand, cold-water soluble Water-soluble POVAL FILM will dissolve in room temperature water of between 10℃ and 20℃. Hot-water soluble Water-soluble POVAL FILM dissolves in hot water above 60℃.
See the Technical information page for further details, such as the length of time required for the film to dissolve.
What kind of form does the product come in?
Water-soluble POVAL FILM is sold in the form of original 1,000m rolls. The film is available from around 1m in width, which will be cut to the requested width. Depending on the brand, there are also wide films. Feel free to consult us.
Our subsidiary also sells the film that has been processed into bags.
Is the film heat-sealable?
It can be easily heat-sealed in the same manner as polyethylene film, etc., while maintaining adequate strength. However, the appropriate temperature range differs according to the processing environment. Please carry out sufficient advance testing.
Is it possible to print on the film?
Gravure printing and other printing are possible. When Water-soluble POVAL FILM is used for the packaging of agricultural chemicals, etc., the print can also be dissolved in water by using aqueous ink.
Does the film contain harmful substances?
The main raw material POVAL is a macromolecule with extremely low toxicity. It is also used in cosmetics (facial masks), and pharmaceutical products (eye drops and tablets). The plasticizing agent for KURARAY POVAL FILM is comprised mainly of glycerin, which is approved as a food additive. Furthermore, because water is used as the solvent during the manufacturing process, there is no need to use CFCs or organic solvents.

Examples of Actual UseClick here for details

Unit-Packaging of Agricultural Chemicals (Water-Soluble POVAL FILM)

In Japan, Water-soluble POVAL FILM is used as packaging for so-called "jumbo formulations" in which packaged herbicide granules are thrown directly into rice paddies. Overseas, it is widely used as packaging for wettable powders, such as insecticides and disinfectants.