Basic Black Dyes
Deep black on mechanical pulp needs a dye with real affinity for lignin, or the shade washes out into white water.
Product range
All 30 CHEMSUM Paper Chemicals
Every grade we supply, grouped by the job it does on the machine - sizing, colouring, strength and barrier, wet-end function, and water treatment.
11 products
Paper Coloring Agent
Paper coloring agents provide vivid, uniform, and lasting shades for paper and paperboard. Our range includes basic, direct, and acid dyes for diverse papermaking needs.
Basic Brown Dyes
Kraft-imitation and board grades need a warm brown that holds its tone batch after batch.
Basic Green Dyes
Vivid green on groundwood furnish demands high tinting strength and even levelness.
Basic Red Dyes
Bright red is the shade most likely to drift on a high-speed machine running recycled furnish.
Basic Violet Dyes
Violet shows shade variation faster than any other tone on decorative grades.
Basic Yellow Dyes
Clean yellow on mechanical pulp needs strong dye uptake without clouding the shade.
Direct Black Dyes
Chemical-pulp grades need deep black at a cost that survives the tender.
Direct Brown Dyes
Packaging and kraft grades need brown that penetrates cellulose fibre evenly.
Direct Orange Dyes
Orange is a shade where levelness problems are immediately visible on the reel.
Direct Red Dyes
Red dye lost to white water is red dye paid for twice.
Direct Yellow Dyes
Writing and printing grades need a clean yellow that does not muddy under coating.
4 products
Paper Functional Agent
Paper Functional Agents are essential chemical additives designed to improve the overall performance, appearance, and processing efficiency of paper and paperboard products.
Fixing Agent
Dye and filler that do not fix on fibre end up in the white water loop as anionic trash.
Optical Brightener Agents
Brightness targets are set by the buyer, not the furnish.
Polyamine
Retention, drainage and wet strength are usually three products and three dosing points.
Retention and Drainage Aid
Every point of first-pass retention lost is filler and fines paid for and thrown away.
8 products
Paper Sizing Agent
Enhance paper performance with our high-quality paper sizing agents, including AKD, ASA, and surface sizing chemicals—improving water resistance and printability.
AKD Curing agent
AKD that has not fully cured leaves sizing developing for days after the reel, and edges that size differently from the middle.
AKD Emulsifier
An AKD emulsion that coagulates in storage or drifts in particle size wastes wax and sizes unevenly.
AKD Emulsion
Acid rosin systems corrode the machine and lose sizing over time; a neutral system needs an emulsion that stays fine and stable.
Anionic Surface Sizing Agent
Linting, dusting and poor coating holdout at the size press show up as print defects downstream.
Cationic Rosin Sizing Agent
Acidic and weakly neutral systems still need sizing, and alum dosage is a cost line of its own.
AKD Wax
Emulsifying your own AKD only pays if the wax purity and particle size are consistent.
AKD High Polymer Emulsifier
High-speed emulsification needs an emulsifier that stays low-foaming and stable under shear.
Liquid AKD
Not every mill wants to run its own emulsification plant.
4 products
Paper Strength Agent
Enhance paper strength and durability with our paper strength agents—improving fiber bonding, dry and wet strength for high-quality, sustainable paper.
Dry Strength Agent
Lower basis weight targets and more recycled fibre both pull dry strength the wrong way.
Wet Strength Agent
Tissue, towel and liquid packaging have to hold together wet, which dry strength chemistry cannot do.
Fluoride-Free Oil Proof Agent
PFAS restrictions are closing in on fluorinated barrier coatings for food contact paper.
Oil Proof Agent
Grease strike-through turns a printed wrapper into a complaint.
3 products
Water Treatment Chemicals
High-performance water treatment chemicals for purification, coagulation, and scale control—ensuring clean, efficient, and sustainable water systems.
DADMAC 65%
Mills and formulators polymerising cationic aids in-house need monomer with consistent concentration and low impurity.
Defoamer
Foam in stock prep and white water becomes sheet defects and slower drainage.
PolyDADMAC
Anionic trash in a closed loop drags down retention and drainage at the same time.
Not sure which grade fits your furnish?
Send the paper grade, the pulp type and the property you need. We will come back with a shortlist and a starting dosage range.