Conditioning

The task

Optimising printability and productivity

Tissue webs are very dusty and dry when they are unwound from the master roll, entering the napkin machine, for example. Loose fibres soil the machine and the environment. In addition, ink absorption is not optimal and static charges, especially on the folder, interfere with production. The challenge consists of moistening the tissue web, binding the fibres, improving ink absorption characteristics and reducing static charges.

Conditioning for less dust development, better printability and antistatic.

If layers are fixed by moistening upstream of the smoothing unit, less pressing is necessary and the volume is preserved. In addition, the liquid binds the cellulose fibres, and the environment and machine will collect less dust as a result. Furthermore, the web exhibits improved ink absorption characteristics. Quality is enhanced and malfunctions in the folder through static charges are reduced.

The solution

Non-contacting liquid application

With WEKO-Fluid-Application-System (WFA) such as WEKO-FLOW or WEKO-BASIC , each with WEKO-SIGMA rotor carriers, liquid for the conditioning of the material web can be applied in exact amounts. This saves valuable resources, provides you with much flexibility and ensures consistent, reproducible product quality. The WFA can be quickly adapted to different applications and product formats.

The realisation

Tissues need WEKO-FLOW or WEKO-BASIC with WEKO-SIGMA

WEKO-Fluid-Application-System (WFA) for moistening pulp webs, consisting of the liquid supply unit WEKO-BASIC, the starter model exclusively for water application, or WEKO-FLOW for the different liquids  each with WEKO-SIGMA rotor carrier.

Your benefits

  • Precisely defined application quantity
  • High long-term constancy of liquid quantity and distribution
  • Reproducible application quantities
  • Economic consumption of application medium
  • Low energy consumption
  • User-friendly