Wolkem’s calcite (GCC) milled grades are
used as fillers in Paper making in
Alkaline / Neutral media and as filler in
wet end, writing and printing paper, as it
provides
Higher brightness
Better optical properties
Lesser optical brightening
agent(OBA) demand
Improved surface properties like
matt finish and smoothness
Provides longevity
Enhances printability
Helps achieve higher filler loading
Lowers OBA demand
Lowers electrolytic load
Reduces cost
Provides better run ability of the
paper machine
Reduces consumption of sizing
chemicals
Allows AKD sizing
Non-hazardous
Avoids use of alum in the process
Permits higher ash content as paper
can be made in
Alkaline medium as against acid
medium
Wolkem’s
Wet Ground Calcium Carbonate (WGCC) grades
are used as Coating pigments in Pre Coat
and or Top coat of Boards, in Mat, Dull,
LWC & ULWC coated papers, as it
provides
Higher brightness
Good print quality and print gloss
Lower dispersant demand
Lower binder demand
Lower production cost
Lower viscosity of coating color at
high shear
Easy disperseability
higher solids content of coating
slip
Consistency and better quality
control during paper coating
No make down cost from dry to wet,
as it is supplied in ready to use
slurry form
Provides dust free and safe working
environment, due to its slurry form
Low inventory due to proximity to
supplier
Talc in Paper Applications :
Wolkem’s Talc Milled Grades are used as a
filler and coating pigment in rotogravure
& offset printing process, in colored
papers, labels catalogues, LWC and HWC
paper/ Board
Wolkem’s Talc as a filler provides
Decreased porosity
Improved opacity
Reduces cost
The print benefits also allow the
increased usage of calcium carbonate
in coating formulations in paper mills
operating under alkaline conditions.
Accelerates water drainage in the
paper machine wet-end and impart good
cross-sectional strength to paper.
Talc's softness imparts good folding
properties to paper board, making the
sheet less abrasive on cutters and
other converting equipment.
Wolkem’s
Talc as a coating pigment provides
Improved gloss
provides smoothness to surface
Imparts print opacity
reduces wear and tear of machineries
Reduces use of expensive OBA.
Provides a silky feel for matt
paper, thereby enhancing reader
comfort and touch
Further
talc
Provides elimination of core burst
problem of LWC-Rotogravure printing.
Better printability for gravure
printed papers.
Silk feel for wood-free matt / Semi
matt papers.
Water based barrier coating for
grease resistance
Recycle ability
Low friction properties
Decreased premature breakage of the
ink capsules in NCR (no carbon
required paper)
