Dyes & pigments

Consistent quality

Efficiency and superior product purity

High-quality paints and pigments are used in various sectors, such as the automotive, cosmetics and pharmaceutical industries. In production, rotary pressure filters (type RPF) and indexing belt filters (type BF) support the necessary process steps of filtration, washing and dehumidification in a single system and deliver high product purity.

Typical applications include printer pigments, precursors & intermediates, phthalic acid, phthalocyanines, phthalocyanine pigments, sulfonic acid, mineral pigments, indigoids, AZO dyes, pearlescent pigments, silicate pigments, aniline dyes and anthraquinone dyes.

Benefits at a glance:

  • Consistent high quality
  • Multiple options for cake treatment
  • Fully automated systems
  • Pharma-compliant machine designs on request

Filtration at low cake thickness

Filtration at low cake thickness

The dyes and pigments sector has particularly high demands when it comes to process technology. Dyes and pigments are usually difficult to filter but still require efficient and high-quality washing. Therefore, filtration is carried out at a very low cake thickness. Consistent quality is a central requirement for each respective product.

Our continuously operating rotary pressure filters and indexing belt filters offer various options for cake treatment and ensure quality standards at a constant level even for very small cake thicknesses. The filters achieve high throughput rates and excellent wash-out and residual moisture values. In addition, the self-regulating systems require little manual intervention, which is essential especially when processing dyes.

Production of high-quality pearlescent pigments with the rotary pressure filter (RPF)


Production of high-quality pearlescent pigments with the rotary pressure filter (RPF)

BHS-Sonthofen rotary pressure filters have proven themselves in many applications. For example, Merck uses them around the clock to produce pearlescent pigments. Watch the video to find out how BHS filtration solutions give cars and cosmetics a shiny appearance.

Our machines in use

Rotary pressure filter (RPF)

A single rotation of the drum entails a number of different process steps, demonstrating the many facets of filtration.

Candle filter (CF)

A compact system to automatically and fully clarify turbid liquids

Tests give certainty

Which technology is the right one for your process? Don’t leave anything to chance. In our test center and filtration laboratory, we test according to your specifications and identify the optimal solution for you.

Gulfood Manufacturing 2024

11/05/2024 -11/07/2024 | Dubai (UAE)


05/15/2024 -05/16/2024 | Birmingham (UK)


11/12/2024 -11/14/2024 | Cologne (Germany)

Satisfied customers worldwide

Find a sales representative

Find your personal contact person on site. We are there for you worldwide.

Find a sales representative

<p>Find your personal contact person on site. We are there for you worldwide.</p>