From the pulp mill to the machine reel, a multitude of organic and inorganic contaminants form from raw materials and chemical operating conditions. Left unchecked, they can lead to any number of problems, including lost production, poor sheet quality, increased maintenance and energy costs, and unscheduled shutdowns.

Solenis offers a broad range of products designed to meet the contaminant control needs of your entire pulp and papermaking operation. Product formulations are based on years of research and development, application experience, and information collected during machine audits, problem diagnoses, and product evaluations.

Our applications expertise and experience with all types of machines and grades of paper, combined with the most complete and cost-effective chemical solutions on the market, ensure that you will enjoy a totally customized solution to your contaminant control needs.

• + Machine Stock Control

  Our organic and inorganic contaminant control technologies include a wide variety of dispersants, surfactants, and polymers specifically developed for detackification, microfixation, passivation, and stabilization. These products can be used individually or in combination to manage the proliferation of organic and inorganic contaminants that can prevent you from achieving your production goals.
  
  

  ORGANIC CONTAMINANT CONTROL

  Pitch and stickies deposit not only throughout the stock prep system but also in the headbox, on forming fabrics, and on other machine surfaces. The deposition of pitch and stickies can lead to holes, breaks, and sheet defects.
  
  Solenis is the industry leader in resolving problems associated with pitch and stickies deposition. Our detackification pitch control technology is recognized industry- wide as the leading deposit control program.

   

  INORGANIC SCALE CONTROL

  When inorganic scale appears in the wet end of a paper machine or on equipment surfaces, it can lead to a number of operating problems. Sodium hydroxide deposits generally start as an insoluble, gelatinous material, often referred to as "chemical slime." With time and temperature, aluminum hydroxide dehydrates to form hard scale deposits that can affect paper machine performance.
  
  Barium sulfate scale also can be found throughout paper machine systems, especially in unbleached grades. Calcium scale, whether carbonate-, oxalate-, or sulfate-based, is even more common and frequently forms in alkaline systems. Both types of scale can decrease the operating efficiency of vacuum pumps and washers throughout the papermaking process.
  
  Solenis has developed specific scale inhibitors to control aluminum hydroxide, barium sulfate, and calcium deposition. Our inorganic scale control programs also feature a variety of phosphate-free scale inhibitors, plus a full range of cleaning chemicals for removing existing scale.

• + Press Section Optimization

  The increased use of recycled content has added to the amount of white pitch and stickies deposition on machine fabrics and rolls. These contaminants reduce water drainage in the forming section and can limit production on modern high-speed machines through contaminant loading in press fabrics and on press rolls.
  Center press roll covers made with synthetic materials also present
new challenges associated with contaminant buildup and sheet release. In general, ceramic roll covers have more problems with adhesion and deposition, compared to rolls made with granite. To help reduce these problems, Solenis has developed specially formulated products to meet the press roll and press fabric conditioning needs of your paper machine. We have structured these technologies to be an integral part of your press section optimization program.

  PRESS ROLL CONTAMINANT CONTROL

  Contaminant buildup on press rolls can cause problems such as picking, holes, and breaks. Our state-of-the-art strategies, including surfactants, cationic polymers, and micro- emulsions, reduce these problems by virtually eliminating the deposition of pitch and stickies on roll surfaces. By maintaining clean roll surfaces, you will not only minimize doctor blade wear and cleaning-related downtime, but also improve the overall performance of your press section, which in turn may enable you to increase production.

  PRESS ROLL ADHESION CONTROL

  Poor sheet release from hard-surfaced press rolls limits machine runnability. To maximize your machines' productivity and speed, we offer an arsenal of products specifically designed to improve sheet release and reduce adhesion to press rolls. Recorded benefits of our adhesion control technology include:
  
  

  • • Increased machine speed/lower draw
    • Reduced holes
    • Fewer press section breaks
    • Reduced picking
    • Decreased dusting
    • Increased doctor blade life

   

  Press Fabric Conditioning

  By maintaining the permeability and absorbency of your press fabrics, you can significantly reduce fabric filling, compaction, and wear. You can also increase the removal of water in
your press section. Solenis offers a number of environmentally friendly fabric cleaners and conditioners that improve machine productivity by enhancing the quality of press fabrics. The application of these products:

  • • Cleans fabrics uniformly and evenly
    • Eliminates unscheduled maintenance stops
    • Reduces fabric and sheet moisture profile variations
    • Eliminates intermittent shutdowns to clean wet fabrics

  Additionally, we offer products that continuously prevent the deposition of contaminants on press fabrics. This unique technology, which we refer to as "press fabric passivation," is used by hundreds of mills globally and is not available from any other specialty chemical supplier. 

• + Dryer Section Passivation*

  With the addition of our dryer section passivation technology, we can tackle all contaminant control challenges across the entire pulp
and papermaking process. This technology improves the total functionality of your dryer operation, protecting every surface in your dryer section that comes in contact with the sheet, reducing the deposition of contaminants, and minimizing sheet picking and dusting. In a single system, the technology integrates:

  • • A continuous application of chemical additives on dryer cylinders and dryer fabrics
    • Specially designed application equipment, including traversing atomizing spray nozzles and their associated pump unit and control station
    • Solenis's application expertise for determining the right product, the right application equipment, and the right points of application

  DRYER CYLINDER CONTAMINANT CONTROL

  Smoother paper, reduced fiber rising, less dusting on the machine, and fewer breaks are just some of the benefits you will realize when you treat your dryer cylinders with our dryer section passivation technology. The technology's repellent coating chemistry not only prevents contaminant adhesion but also helps to lubricate the doctor blades, reducing friction between the blade and the dryer cylinder, thereby decreasing the amount of energy needed to drive the dryer section. Other benefits include:

  • • Increased paper production
    • Improved sheet quality
    • Reduced steam consumption
    • Increased safety through reduced use of solvents

  DRYER FABRIC CONTAMINANT CONTROL

  When deposits form on dryer fabrics, they frequently transfer to the dryer fabric rolls. Over time, the buildup forms thick deposits. Deposits of this nature not only impair moisture removal, but also can transfer back to the sheet and cause visible spots.

  When applied directly to dryer fabrics, our dryer section passivation technology establishes a protective layer that prevents contaminants from adhering to the fabric surface. By preventing the deposition of contaminants on your dryer fabrics, the technology reduces or eliminates the need for you to stop and clean your fabrics when production has slowed due to impaired moisture removal or when your sheet moisture profile can no longer be controlled.

   

  *Izdelki, oprema in uporaba spadajo pod licenco družbe Maintech Co. Ltd., ekskluzivni ponudnik tehnologije v večini držav pa je družba Solenis (Družba Maintech Co. Ltd. nastopa kot ekskluzivni ponudnik tehnologije v Avstraliji, na Kitajskem, v Hong Kongu, Indiji, Indoneziji, na Japonskem, v Koreji, Maleziji, na Novi Zelandiji, v Pakistanu, na Filipinih, v Singapuru, na Tajvanu, na Tajskem in v Vietnamu).

• + Specialities

  Good housekeeping practices, including regular boilouts and thorough machine cleanings, are recommended and will go a long way toward helping you achieve your performance goals.
  
  To help make your scheduled machine boilouts and cleanings even more effective, Solenis has developed
a broad spectrum of products specifically designed to remove pitch and stickies deposits, inorganic scales, biological and chemical slimes, rosin and synthetic size deposits, and deposition caused by the buildup of fines and filler.
  In addition to boilout and cleaning products, we also offer products that prevent contaminants from adhering to forming fabrics.

   

  BOILOUTS

  For contaminant control or general maintenance and cleaning situations, our boilout products are unmatched in their effectiveness at removing microbiological contaminants and organic and inorganic deposits. Additionally, because they are offered as liquids, all of our boilout products are totally soluble for ease of use throughout your machine's aqueous system.
  
  

  FABRIC CLEANERS

  Removing contaminant buildup on your forming fabrics, press fabrics, and dryer fabrics will greatly improve the overall operating efficiency of your machine. Whether you need to clean your fabrics intermittently, as with batch-on-the-fly cleaning, or during a scheduled shutdown, Solenis Hercules has a solution. Our fabric cleaners contain either an alkali or an acid source and surfactants, which aid in breaking down the contaminant structure, thereby making the deposit easier to rinse away. We also offer products that contain solvents to address tenacious organic deposits, as well as a number of environmentally friendly batch-wash products that are approved by the FDA and other regulatory bodies.
  
  

  FOAM CLEANERS
  

  Whether used during scheduled maintenance stops or other machine shutdowns, our foam cleaners are highly effective at removing stubborn organic deposits and inorganic scales from surfaces not readily cleaned during regular system cleaning. All of our foam cleaners are:

  • • Water-soluble blends of alkaline/ acid, chelants, and high-foaming surfactants 
    • Superior in their clinging properties 
    • Formulated to produce a highly stable foam 

  FORMING FABRIC PASSIVATION

  Since its development by Solenis more than a decade ago, forming fabric passivation has become the most common method used to prevent pitch and stickies from depositing on forming fabrics. Passivation of forming fabrics is achieved by spraying a water-soluble cationic polymer directly and continuously onto the forming fabric during paper production. Within minutes of initial application, a coating that prevents contaminant adhesion is formed on the forming fabric.
  
  With BfR- and FDA-approved formulations that are free of alkyl phenol ethoxylates and volatile organic compounds, it is no wonder that Solenis's forming fabric passivation technology is used extensively around the world.

• + Automated Feed and Monitoring Equipment

  To ensure total optimization of our contaminant control technology, we also provide an advanced package of electronic monitoring and control equipment consisting of three components:

  • • Data collection system
    • Windows*-based data management software
    • Monitoring and control sensors

  Our systems have been designed for each type of application, using the latest in pumping and control technology to accurately feed the chemical into your process. They are reliable and easy to use, and they can be used in stand-alone environments or interfaced with your mill's process control system. For permanent applications, we can custom-build systems to meet your exacting standards.

General enquires: Katja Habjanič E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Telephone Number:+386 (0)1 560 22 06 Business development enquires: Karl Iljaž E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Telephone Number: +386 (0)41 724 764   Technical enquires: Jani Vidmar E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Telephone Number: +386 (0)41 760 542 Gregor Kozlevčar E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Telephone Number: +386 (0)51 661 827