Coating Colour Kitchen process includes metering and mixing raw materials in order to coat the paper or board and thus improve its optical (i.e. brightness) and/or printing properties.
Coating colour chemicals
| Main products | Minor additives |
- Mineral pigments
- Organic binders (native starch- transformed starch)
- Co binders (PVA, CMC, Protein)
- Synthetic binders (latexes)
|
- Lubricants
- Rheology modifiers
- Pigmented dyes
- Anti-foam, biocides,
- Barrier agents
- Water retention agents
|
Benefits
- State-of-the-art engineering with optimisation of layout and pipe design
- In-line chemical processing stages with value-added solutions
- Excellent final coating colour quality with energy-efficient dispersing processes
- Fully automated operations to manage materials, recipes and final quality and providing for high dosing accuracy and good repeatability
- Recovery and recycling of coating effluents
- Fast reactive kitchen: new hybrid technique to react quickly to production requests and grade changes
Working station
Process consisting of transferring, screening and deaerating the colour to deliver it to the coating heads (film press, on-line or off-line coaters).
Benefits
- Optimal coating colour quality (excellent deaeration, dry contents and viscosity regulation and fine temperature control)
- High filtration efficiency of fresh coat and header coat
- Smooth run of the coating process (pulse-free supply)
- Maximised recovery and recycling of coating colour
- High-availability delivery system adapted to modern coating methods and increasing machine speed