Liquid Colors for Hennecke and Laader Berg Machines

What it is

On a modern foam line, colour is not stirred in by hand. A liquid colorant is held in its own day tank, drawn by a metering pump and injected into the polyol stream just before the mixing head, so the colour ratio can follow the output of the machine. That only works if the colorant behaves like a well-mannered fluid: it must stay suspended, pump without pulsing and flush out cleanly at changeover.

Chemie liquid colors are pigment dispersions in polyol-compatible carriers, made with that duty in mind. Viscosity, particle fineness and settling behaviour are set against the pumps and filters on your machine, which is why we ask for the dosing set-up when we quote. The same approach applies to units supplied by Hennecke, Laader Berg and other foam machinery makers.

Shade matching, batch records and retained standards work exactly as they do for our other colorants, so a repeat order arrives in the colour you approved.

What matters for machine dosing

• Viscosity customised to your pumps and line lengths, so flow is steady rather than pulsing.
• Fine, controlled grind that avoids blocking filters and nozzles.
• Stable suspension that does not settle hard in the day tank over a normal production shift.
• Carrier chemistry compatible with polyether and polyester polyol systems.
• Clean flushing at colour changeover, so the next shade is not contaminated.

Information we need to quote

A short list is enough to start a sampling plan:

• Machine make and model, and whether colour is dosed through a dedicated colour unit.
• Pump type and the viscosity range it handles comfortably.
• Polyol system and index, and the foam grade you produce.
• Target shade reference, such as a swatch, Pantone or RAL code.
• Typical colour changeover frequency and run length.

Why customers choose it

• Viscosity set for your pumps

  We adjust flow behaviour to the metering pumps and lines on your machine instead of supplying a fixed standard grade.

• Steady colour in the foam

  Controlled dispersion and tinting strength help the colour ratio stay consistent as line output changes.

• Easy changeovers

  Carriers selected to flush cleanly so shade changes cost less time and less scrap.

• Trial-backed supply

  We recommend a plant trial on your machine before a full order, and support the first runs.

Applications

• Slabstock foam on continuous lines
• Moulded flexible foam
• Furniture and mattress foam
• Rebonded foam production
• Automotive seating foam
• Trials and short runs on batch machines

Typical properties

Indicative typical values. Batch-specific values are given on the Technical Data Sheet (TDS) and Certificate of Analysis.

Packing sizes

Buyer guides for this product

• PU Foam Colors for Slabstock, Moulded and Rebonded Foam
• PU Colorants and Pigment Dispersions for Polyurethane

Used in these industries

• Slabstock Foam
• Furniture
• Rebonded Foam
• Automotive