Celvol 523
Polyvinyl alcohol
25213-24-5
Celanese
乙烯基 >> 聚乙烯醇 (PVOH)
Vinyl >> Polyvinyl Alcohol (PVOH)
油墨
Inks
INKS >> 数字墨 (如喷墨)
INKS >> Digital inks (eg. Ink jet)
Celvol polyvinyl alcohol for ink jet printing papers
With regard to ink jet coatings, the molecular weight of PVOH controls the binding power for pigment adhesion and also determines coating rheology. The percent hydrolysis also helps control the binding power and coatings rheology, but to a lesser extent than molecular weight.
Coating Applications
PVOH is the preferred binder for ink jet coatings utilizing silica pigments. PVOH provides excellent binding strength and improved ink jet print quality versus typical latex binders used in other pigmented coating applications. Formulations of PVOH and silica pigment will, however, create a fairly viscous coating at relatively low solids. The viscosity that is developed is dependent upon the desired coating solids, the pigment-to-binder ratio, and most importantly, the grade of PVOH chosen as a binder.
Partially hydrolyzed polyvinyl alcohol resin. Used as a binder for ink jet coatings utilizing silica pigments. Provides very good binding strength and improved ink jet print quality. Creates a fairly viscous coating at relatively low solids.