Manufacturing paper is a lengthy process and requires lot of pulp and water. The process is divided into several stages and every stage requires certain chemicals to improve the machine efficiency and give maximum output. We supply complete set of Paper speciality chemicals dosed at various stage of process to enhance the efficiency of the Machine hence reducing capital cost.

Paper chemicals are classified chemicals used for paper manufacturing or modifying paper properties. These chemicals changes the quality of paper like changing its texture or by altering its physical and chemical properties.

Paper Making goes through a lot of processes like processing of raw materials, pulping, screening, filtering, refining etc. These processes require the need of industry chemicals that will make the operations smooth and free of problems.

The pulp and paper industry chemicals not only help in minimizing the critical issues faced during the process of paper making but also aids in enhancing the overall productivity of the system.

Our portfolio of paper chemicals goes into every stage of manufacturing. From process chemicals that optimize costs and increase machine efficiency through functional chemicals that lend specific properties. They have also enabled the tremendous increase in the speed of paper machines. The major objectives for paper producers are attaining or improving productivity, meeting customer needs, developing technologically, mostly to meet health, safety, and environmental regulations.

Water offers the widest variety of specialty products which find application throughout the paper making process and hence increase the overall efficiency of the Paper mill.

BIOCIDES

Growth of microorganisms in paper manufacturing processes causes major technical, economical and hygienic problems, mainly due to slime formation. It is very important to choose the right Biocide for the system as chemical-physical and the composition of the microorganisms vary widely in one process and between processes. Resistant strains can also evolve due to repeated treatment by certain biocides.

DE-INKING COMPOUNDS

De-inked pulp quality requirements remain high, and there is increasing pressure to reduce processing costs and increase production capacity. Every de-inking process is unique because of the infinite variables in water content, the furnish mix and individual techniques for running the process.

FELT CLEANERS/CONDITIONERS

Machine cleaning and boil-outs are not just cosmetic to make a process look nicer – they are critical components of deposit and microbiological control programs. No deposit control program is 100% effective. Effective boil-outs and machine cleaning is required to maintain maximum operational efficiency. Effective boil-outs are one of the foundations of a comprehensive microbiological control program.

BOILOUT CHEMICALS

The purpose of a paper machine boil out is to remove deposits of pitch, fibers, minerals, and biological slime from the wetted surfaces of a paper machine during a shutdown.

DIGESTER ADDITIVE

A specially designed product to help the digestion of pulp in paper mills. The composition of this product gives a better Kappa number and allows lowering the use of caustic soda. This is a speciality chemical developed to improve liquor penetration in the chips during cooking by way of wetting mechanism.

STICKIES CONTROL

Stickies are tacky substances contained in the paper pulp and process water systems of paper machines. Stickies have a large tendency to make deposits on the processing equipment in certain stages of the papermaking process. Contaminations of paper that that are classified as tacky are also called stickies.

VACUUM SCALE CONTROL

Scale formation occurs in different areas of the pulp making process including the digester heater, screens in washing, filters, and drums (plugging) in washing / bleaching, along the pipe lines, control sensors, liquor evaporator, vacuum pumps, scrubbers and tanks surfaces. These could lead to significant negative impact on productivity and product quality. Scale control agents inhibit the formation of scale on equipment’s surface, pipe lines, control sensors, vacuum pumps etc., thus ensuring optimum efficiency. The polymeric component of the product inhibits the precipitation of calcium or Aluminium phosphate. This allows high levels of soluble orthophosphate to be maintained in the recirculating water, promoting mild steel passivation.

WET END DEPOSIT CONTROL

A unique organic and inorganic deposit prevention formulation designed for felt conditioning to prevent organic and inorganic (such as carbonate, alum, clay and fabric) deposition in felts on paper and pulp machines. This composition shows unprecedented performances in maintaining clean felts and retards or eliminates organic and inorganic deposits accumulation resulting in improved sheet quality and extends felt life

ODOUR CONTROL

An aqueous solution of combination of biocides that offers excellent protection against a broad range of micro-organisms including bacteria and other fungi. It operates through a unique dual action mechanism. Firstly, it has a powerful biocidal action that controls the microorganisms. Secondly, it reacts with thiol containing groups that cause bad odours e.g. hydrogen sulphide, mercaptans and organic sulphides to form more complex, less odorous compounds

WET & DRY STRENGTH RESINS

A wet end additive formulates to impart dry strength to paper. It offers superior retention and performance at the wet end. The improved strength characteristics of Wet strength resin include STFI, Concura, Burst, Tensile, Ring Crust and Dry Rub. These benefits improve the papermaking operation by enabling new grades, lower cost furnish increased machine speed and reduced steam demand. Dry strength resin is long chain synthetic polymer. The polymerisation is controlled and restricted to get the product which gives extra stiffness smooth, surface and better strength properties for paper. The main function of Dry Strength Resin is to increase strength per unit of bonded area between fibers in any sheet of paper. Dry strength additives are usually polymers of acrylamide.

SURFACE SIZING CHEMICALS

Surface sizing agents have both hydrophilic and hydrophobic ends. It is forms a thin film on paper web, the hydrophilic tail of it joined with the fiber, whereas hydrophobic tail facing outwards. The thin film reduces paper dust; improve surface strength, printability and water resistance of the paper. It is normally applied in a paper mill though the size press at dry end section. This is a specialty surface sizing agent to bring down the internal sizing cost to great extent.

DEFOAMER/ANTIFOAM

Defoamer/Antifoams are used in a pulp mill and a paper mill to reduce foam problems. It tackles both problems with surface foam and entrained or entrapped air. Defoamer also hinders the formation of foam. Defoamer improves drainage in the Kraft pulp stock, sulfite stock, bleaching plant screen room area in the pulp mill. It reduces paper breaking and hence improves paper machine runnability. Defoamer also lessens steam consumption in the dryers and resultant energy savings as well as cost savings. Defoamer avoids paper formation of holes by removing fine bubbles in fibers.

RETENTION AIDS & POLYELECTROLYTES

Retention Aid (Powder) is specially a Flocculant and is used in Pulp & Paper Industry to improve the first pass retention and fibre saving in krofta applications. It can be modified as per specific requirements of system and it can be modified to suit the conditions of particular mill.

Given below is the range of paper process chemicals:

  • Deinking
  • Wire Passivation
  • Felt Cleaning
  • Felt Conditioning
  • Acid Foam Cleaner
  • Acid Boilout
  • Alkaline Boilout
  • Digester additive
  • Stickies control
  • Roll Release
  • Vacuum Scale Control
  • Antiscalant in evaporators
  • Dispersants – Anionic
  • Wet end deposit control
  • Odour Control
  • Descalant
  • Wet Strength Resin (WSR)
  • Dry Strength Resin (DSR)
  • Surface Sizing
  • Brown Stock Defoamer-Silicon based
  • Paper Machine Defoamer-Non-Si based