Noshinku Refillable Sanitiser: Re engineered for Production

A refillable sanitiser rebuilt so it behaves the same way on every unit. A sanitiser, reconsidered. Client · Noshinku, delivered through Gembah Sector · Personal care Services · Mechanical engineering, tolerance review, design for manufacture Engagement · Redesign of an existing product The challenge The disposable sanitiser bottle is one of the most successful product formats of the last decade. The refillable version has a harder commercial argument: the user has to remember to refill it, carry the gel separately, and trust the seal in a tossed handbag. Noshinku had solved the trust problem with premium materials and a subscription, but the object underneath needed work. The approach The redesign rebuilds two sub systems. The snap cap clicks home at a tactile threshold the user can feel through a coat pocket, and the geometry holds it retained against the casing without the play of the previous generation. The fill plug is a silicone moulding with a tapered profile and two reference radii, sealing under pressure without tearing on insertion. The outcome Tolerances were defined to a 0.1mm standard across every interface, so the contract manufacturer could quote with confidence and the production run would not produce the variation the previous generation suffered. The existing tooling investment on mechanical parts was preserved while the exterior was rebuilt with G3 surfaced components. Our role Enki led the redesign and engineering of the Noshinku sanitiser, delivered through Gembah, taking the existing tech package and rebuilding the cap and plug architectures. Scope covered tolerance review across all components, snap cap re engineering, fill plug seal design, casing surface finish standardisation, and a complete drawing pack ready for the factory. “The hardest engagements are the ones where the design is already on shelf. You have to improve the object without restarting it.” Ben Jones, Founder, Enki Product Development