Rotogravure printing water based ink water-soluble for wetness indicator 1. Stable ability, long time storage (sealed for ... ; fast drying; excellent leveling; it has function of wetness indicator that the printing color will disappear when contacting water or ... diaper ); garment fabric, graffiti pen, cross-stitch grid fabric, Humidity Indicator Card. 1. Environment friendly, it is non-VOC emission ...