KURARAY POVAL™ 30-88

KURARAY POVAL™ 30-88 by Kuraray is a water soluble, partially hydrolyzed, polyvinyl alcohol (PVOH). It shows uniform chemical structure, great adhesion, good penetration and excellent film characteristics like high cohesion & toughness, low electrostatic charging and re-dissolving capacity. It provides extension of the open time, influence on the rheology, good remoistening properties and high degree of flatness during storage under fluctuating air humidity. It has outstanding carrier properties due to optical brightening agents. It offers high folding endurance and minimal blocking tendency even in high air humidity and fast setting after reactivation. It exhibits excellent colloidal protection that becomes effective in high solids pigment formulations which establishes a smooth viscosity profile, good water retention in coating colors and high binding strength. It is used as a water-activated adhesive raw material. It can also be used as a protective colloid which can influence the particle size distribution, viscosity, stability to stirring, freeze/thaw stability, pigment compatibility & electrolyte stability. It is recommended for gumming of paper on the reverse side (e.g. postage stamps and labels), coatings, envelopes, Jiffy®-type bags and emulsion adhesives. Aqueous solutions of KURARAY POVAL™ 30-88 can be added to polymer emulsions that are already stabilized with polyvinyl alcohol. It is designed as a co-binder in paper- & pigmented coatings. It possesses remarkable barrier properties. It displays excellent mechanical strength properties if applied as a film on paper or paperboard. It is suitable for silicon base paper which can be used as a release paper for PSA labels and banknote paper. It is used in thermo-reactive paper for bar code labels or facsimile machines, film casting (release) paper and ink-jet paper. The shelf life of the product is 12 months.