Focus on water soluble film application 

Production technology of water soluble film

by:POLYVA     2021-02-03

the making craft of water soluble film

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the making craft of water soluble film similar to stretch film coating process. It includes rubber, filtration, stretch film coating, drying, stripping and winding process.

in the production of water-soluble film, choose the raw material must demand without impurities, otherwise the water soluble film is not smooth, porosity, produce the defects such as sand holes, as a result, the system after the glue must be filtered to impurities or not insoluble substance.

must be high concentrations of glue, the glue solution should strictly control the quality, time, temperature, pressure in the reaction kettle must be confirmed according to the experiment.

stretch film coating must be uniform, the coating weight also must first be tested to determine. Water soluble film manufacturer, dry hot air ( Generally USES hot air to coax stem or other drying methods) Temperature, hot * * quantity also must be strictly controlled, otherwise the temperature too high or * * quantity will make the film to harden and wrinkle and effect, and low temperature too low or hot * * will be difficult to achieve the purpose of removing moisture, or reduce the efficiency of the film.

other aspects, such as tension and speed must also be strictly controlled.

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