Industry · Printing and Ink
From pigment agglomeration to print head clogging, from solvent line safety to ambient air control: filtration engineering that safeguards ink rheology and color stability.
0,11 µm
Finest filter rating
AISI 316L · PTFE
Materials for solvent-based lines
Antistatic
Static discharge on solvent lines
Critical points
In high-speed printing systems and digital printing, operational success depends on the rheological stability of the ink. Even the smallest pigment agglomerate or foreign particle in the ink spoils print quality, clogs nozzles and increases scrap. In this process, filtration determines both product quality and equipment life.
Micro-level agglomeration of pigments in ink is the biggest factor that spoils print quality. Filter systems rated down to 0.11 µm separate undissolved pigment clusters and gel particles so the ink spreads smoothly on the surface. Depth filters stand out in this application: because they trap particles throughout the entire filter material, not just on the surface, they offer high dirt-holding capacity without stressing the ink’s pigment structure. This extends filter life and lowers operating costs. Uniform pigment dispersion also prevents color deviations (delta-E variations) during the print run and ensures the same color saturation in every copy.
Solution: Removing pigment clusters with depth filters
The aggressive chemicals used in ink production directly test the durability of filter materials. Chemically resistant materials such as AISI 316L stainless steel or PTFE are mandatory on solvent-based lines, while hygienic designs that prevent microbial growth come to the fore on water-based lines. In solvent-based inks, static electricity is a separate safety parameter that must be managed. Solvents build up static charge as they flow, creating an explosion risk. Antistatic stainless steel housings and filter elements with a grounding connection safely discharge this risk.
Solution: Chemically resistant materials and antistatic design
Air quality in the print room leads to high scrap rates because dust particles stick to the wet ink surface. Filtering ambient air and maintaining humidity balance prevents dust adhesion caused by static electricity. Cleaning the air that enters the cooling channels of digital print heads extends the life of sensitive electronic components and jetting channels, significantly reducing head replacement costs.
Solution: Ambient air and head cooling filtration
Ink production line
Select a stage on your line to see the Prosestim filters and micron range used at that point.
01 · Coarse separation
Separating coarse particles at the varnish and resin inlet extends the life of the subsequent precision stages.
02 · Pigment agglomerates
Depth filters trap particles throughout their structure and offer high dirt-holding capacity without disrupting the ink’s pigment structure.
03 · Antistatic
Solvents build up static charge as they flow; antistatic stainless steel housings and grounded filter elements discharge this risk.
04 · Down to 0.11 µm
Uniform pigment dispersion prevents color deviations during the print run; the final stage locks in quality before filling.
05 · Heads and air
Filtering ambient air and head cooling air prevents dust adhesion and reduces head replacement costs.
This stage is your existing equipment. Let’s design the earlier stages together; our engineers will recommend the right filter.
Let’s define a solution for this stage of your line together with our engineers. Write to us
Applications
The same filtration principles apply across applications, with different material and micron choices.
Pigment dispersion and filling filtration.
Fine filtration to protect nozzles.
Chemically resistant and antistatic solutions.
Hygienic design that prevents microbial growth.
Products used in this industry
Each product page lists the micron range, material compatibility and operating conditions.
Phenolic/acrylic resin-bonded cartridge filter for paint, ink, resin and adhesive lines, 1–150 µm
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Fully welded SMS bag filters, 0.5–10 µm, for gel-like and deformable particles; dirt-holding capacity above 1 kg
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Pleated micro cartridge filter with PES, PTFE, PVDF and PP membranes; 0.11–50 µm for sterile and precision filtration
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Polyester felt bag filters, 1–200 µm, rated up to 135 °C; used on paint, coating and chemical lines
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AISI 304/316 mesh, 5–1000 µm washable stainless steel cartridge filter for hot, viscous and aggressive lines
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Stainless steel cartridge filter housing with AISI 304L/316L/316Ti body and 1–60 cartridge capacity
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