Online Sizing and Calendering

Online sizing and calendering

Surface improvement and good mechanical strength properties are the focus in a market that always demands stronger paper and better appearance and printability.

Online sizing of the paper is standard for many P&B grades.
It is used for paper surface finishing quality or to enhance the mechanical characteristics. Toscotec size presses can satisfy the market needs. Easy operation, maintenance and clean operation are drivers of the Toscotec design. Toscotec size presses feature an optimal penetration of size in the paper providing higher strength (RCT, CMT, burst, etc.) and paper surface properties.

TT FilmSizePress. In a modern film applicator concept, the metering process in done through a grooved rod.
The grooved rod is used to volumetrically meter the color film (usually it is starch for packaging grades and could be pigment on fine paper) to the applicator rolls, then transferred to the paper through pressure as the sheet passes through the applicator rolls nip. Film thickness is related to the rod void volume.
Toscotec TT FilmSizePress can run different rod diameters and shapes according to the application needs.
TT FilmSizePress can be with inclined or horizontal applicator rolls nip as hybrid version. This makes it possible to operate as a puddle or Film Sizer according to the paper grade and basis weight. The TT FilmSizePress metering head design guarantees thermal and mechanical stability during loading and operation.

TT PondSizePress. TT PondSizePress is the traditional “pond” solution for those applications where the low paper machine speed, basis weight and paper quality parameters allow the safe use of this concept.
The applicator rolls nip can be designed as horizontal or slightly inclined. The pond level control and stability are maintained through an innovative distribution system for proper dosage of starch, kaolin or glue solutions on one or both paper sides.

Calendering is often tailored to each specific application and specific needs for each mill.
To obtain the required surface finishing and caliper profile without destroying the mechanical properties is a combination sometimes not easy to reach. Toscotec engineers and paper makers can support the customer to determine the proper calender design.

TT Calender-H and TT Calender-S. Toscotec calender series H-Hard and S-Soft can be supplied with various combinations of roll diameter, temperature and nip load range.
Toscotec has developed a range of calender units that can satisfy all required finishing characteristics of the Paper & Board producers. Toscotec’s product range includes calenders equipped with: solid roll, TT ControlCrownRoll and heated roll with hard or soft cover.

Paper & Board Machines

Headbox

Toscotec’s headbox line can satisfy all customer needs in terms of production, quality and specific application.

Forming Section

State-of-the-art drainage equipment is properly configured on a Toscotec fourdrinier to reach the best quality results.

Press Section

Tailored press technologies, inlcuding Shoe Press, according to the applications.

Drying Section

The most famous well-proven TT SteelDryer and drive concepts.

Tail Feeding System

The perfect tool for new machines or to improve the efficiency and safety of an existing line.

Product finder

Broke Pulper

TT MBP. The Toscotec Broke Pulper TT MBP is designed to be installed under machine both in tissue, paper and board applications.

Rotating Screen

TT RS. The Toscotec Rotating Screen TT RS is used in recycled paper stock preparation plants to de-water the coarse rejects coming from upstream cleaning equipment.

Ragger

TT RG. For the proper performance of a continuous pulper working with recycled paper (Toscotec Low Density Pulper), a cleaning unit such as the ragger TT RG is required to be installed.

Low Density Pulper

TT TM. Optimized to work with heavily contaminated recycled paper or with rewinder trims, the Toscotec Low Density Pulper TT TM is designed to perform an extremely efficient and low energy slushing in continuous mode and to remove rejects without breaking them.

Medium Density Pulper

TT VP. Suitable to work both with virgin pulp, broke, recycled paper and non-wood fibers, the Toscotec Medium Density pulper TT VP is designed to perform an extremely efficient and low energy slushing in discontinuous mode.

Turbo Separator

TT TMC. The Toscotec Turboseparator TT TMC is installed in recycled paper stock preparation lines as primary screen to treat the accept stream of the Toscotec Low Density Pulper.

Vortiscreen 3 Series

TT VS-3. The Toscotec Vortiscreen TT VS-3 can be installed as the only coarse screen in converting broke lines or as the last tail screening stage for the treatment of the rejects coming from drilled Toscotec Superscreens in recycled paper processing lines.

Vortiscreen 1 Series

TT VS-1. The Toscotec Vortiscreen TT VS-1 is used in recycled paper stock preparation plants mainly for the detrashing of the continuous TM Pulpers and as a dumping machine of high consistency batch pulpers.

Superscreen

TT SS. The Toscotec Superscreen TT SS is a horizontal screen with basket and rotor designed to be installed as a coarse or fine screen in recycled paper stock preparation plants. It is optimal to treat stock up to a working consistency of 5%.

High Density Cleaner

TT HDC. Engineered to work both with virgin pulp and recycled paper, the Toscotec High Density Cleaner TT HDC is designed to reliably remove heavier than fiber contaminants, suspended in consistencies up to 6%, directly after the pulper.

Thickening Screw

TT CA. The Toscotec Thickening Screw TT CA is an inclined screw thickener; it can be configured as a Single Unit or as Combined Units (up to 3 Units on a single stand and with only one feeding headbox) for higher capacity and reduced footprint.

Wire Washer

TT CW. The Toscotec Wire Washer TT CW is used to obtain an efficient removal of ashes, inks, glues, and fines by means of low consistency stock washing and consequent thickening.

Short Approach Flow System

TT SAF. Toscotec Short Approach Flow TT SAF, patented by Toscotec since 2012, allows every mill, new or existing one, to reduce energy consumptions and installation space, without compromises in terms of performances.

Vibrating Screen

TT V. The Toscotec Vibrating Screen TT V can be used as final stage for rejects de-watering after other screens such as vortiscreens, superscreens and pressure screens.

Pressure Screen

TT AFS. The Toscotec Pressure Screen TT AFS is designed to be installed in the approach flow system as final protection of the headbox.

Environment

Dust Removal System, Mist Removal System, Heating & Ventilation System

Hoods & Air system

Toscotec customizes the design of its TT Hood based on the customer’s needs and the overall drying configuration of the tissue machine, including the Steel Yankee Dryer.

Steam and Condensate System

As an auxiliary system of the Steel Yankee Dryer, Toscotec’s Steam and Condensate System is optimized to operate in association with TT SYD to allow it to achieve its maximum drying capacity.

Steel Yankee Dryer

Toscotec is both the inventor and the leading supplier of Steel Yankee Dryers worldwide.

Press

Paper machine press section represent a key area for rebuilds to improve quality of the paper and energy savings.

Headbox

TT Headbox delivers optimal sheet formation, because its design is custom-made based on the specific product needs of the customer. It operates at a high consistency, thereby reducing energy consumption.

TADVISION® Air System

Toscotec’s TADVISION® Air System is composed of two hoods, a lower blowing hood and an upper suction hood, installed below and above the TAD Drum section of the TADVISION® machine.

TADVISION® Drums

TADVISION® features a unique outflow serpentine design in its TAD section, which is composed of a multiple number of TAD drums (configuration according to production needs).

Tail Feeding System

The perfect tool for new machines or to improve the efficiency and safety of an existing line.

Drying Section

The most famous well-proven TT SteelDryer and drive concepts.

Press Section

Tailored press technologies, inlcuding Shoe Press, according to the applications.

Forming Section

State-of-the-art drainage equipment is properly configured on a Toscotec fourdrinier to reach the best quality results.

Headbox

Toscotec’s headbox line can satisfy all customer needs in terms of production, quality and specific application.

Toscotec is a Voith company