Product characteristics
Shampoos range from thin, watery formulations to thick, gel-like products. Many are prone to foaming when agitated, and pearlized or surfactant-heavy formulations can trap air. Viscosity may vary between SKUs on the same line.
Filling technologies to investigate
Filling technologies to investigate typically include piston filling and pump filling for thicker formulations, and overflow or flow-meter filling for thinner, foamy products where a consistent visual fill level in clear bottles matters. Bottom-up filling nozzles are often discussed to reduce foaming. Confirm suitability with suppliers using product samples.
These are technologies commonly considered for this product type, not a definitive engineering recommendation. Suitability depends on your formulation, container and production requirements.
Container considerations
Bottles of many shapes and materials are most common, along with pouches, sachets and refill packs. Neck finish and bottle stability on conveyors affect nozzle selection and line design.
Production considerations
Frequent changeovers between fragrances, colors and sizes are common. Consider cleaning between SKUs, fill accuracy relative to declared volume, and integration with capping, labeling and coding equipment.
Relevant equipment categories