Plastic cap for fabric softener bottle, black

Plastic cap for fabric softener bottles in black is a screw cap made of polypropylene, designed for bottles with an LD 42/3 neck type. It fits wherever you need to simply and reliably seal a larger bottle with liquid contents – especially for home production of fabric softener, laundry gel or dishwashing liquid, but also for shower gels, shampoos and liquid soaps filled into larger volumes. The black colour creates a striking contrast with white and clear bottles and pairs well with dark labels, giving the entire product line a cohesive look.

The cap is suitable for use with cosmetic products and meets the applicable legislative requirements. A declaration of conformity is available with the product.

Where the cap works best

• Home cleaning products – fabric softener, laundry gel, dishwashing gel or all-purpose cleaner: products made in larger batches and used repeatedly in small doses.
• Rinse-off cosmetics in larger packaging – shower gels, shampoos and liquid soaps in family sizes or as refill packs for topping up smaller dispensers.
• Stock packaging for own products – a finished formulation that you keep sealed and pour out as needed.
• Uniform line appearance – the same black cap on all bottles in a line simplifies the choice of closures and the look on the shelf.

How to pair the cap with a bottle

The decisive factor is the neck type, not the bottle volume. The cap fits any bottle with the same thread type. Bottles with this neck and ready-made cap-and-bottle combinations are available in the Handymade range. When combining with a bottle from another source, verify the seal in advance: fill and close the bottle, lay it on its side and upside down, and check after several hours that the contents are not leaking anywhere.

Good to know

• Preparation before first use – wash the cap with warm water and a cleaning agent, rinse, disinfect as needed with isopropyl alcohol or ethanol and leave to dry completely with the thread facing down. Residual water in the thread can affect the microbiological stability of the contents.
• Material resistance – polypropylene tolerates water, surfactants and the common acids and bases used in home cleaning. With concentrated essential oils, fragrance compositions or solvents, verify the material behaviour in the finished formulation.
• Filling – fill the bottle with cooled contents and only to the nominal volume, not to the neck. The space below the cap acts as a reserve for the expansion of contents when temperature changes and allows the bottle to be closed without forcing product into the thread.
• Reuse – after thorough washing and complete drying, the cap can be used again. Before reuse, check that the thread is not damaged or deformed.
• Recycling – the cap is made of polypropylene and belongs in plastic waste. If the bottle is made of a different material, separate it from the cap before disposal.

Frequently asked questions