Plastic pump heads for packaging must meet high standards in structural strength, sealing performance, user experience, and safety while addressing environmental trends and industry customization needs. They serve as crucial components for achieving functional performance and brand differentiation in personal care products.
Runpacet's color masterbatch for pump heads is specifically formulated to be compatible with cleaning agent ingredients: - Resistant to prolonged exposure to alcohol, sodium hypochlorite, surfactants, and other liquids - Pigments do not react with corrosive components, preventing fading, migration, or leaching of harmful substances - Pump head components made with the masterbatch show a color change of ΔE ≤ 1.5 (visually undetectable) after 72-hour immersion in cleaning agents (e.g., 5% NaOH solution)
Runpacet's low-shrinkage properties: - Thermal expansion coefficient of the masterbatch matches the base material, ensuring dimensional stability after cooling - Prevents thread loosening or sealing failure due to shrinkage - Complies with EU REACH, US CA Prop 65, and other regulations
