Idealpak Ribbed 37-400 Continuous Thread PP Flat Cap

What this packaging is

Ribbed texture and a confident grip make the Ribbed 37-400 Continuous Thread PP Flat Cap a reliable workhorse for liquid-forward categories. This polypropylene flat cap fits a standard 37-400 neck finish — one of the most common formats in personal care — and its compact 1.56" diameter and 0.43" height keep proportions clean across bottle silhouettes. Manufactured in China, it's available with PCR content for brands building a more sustainable packaging story. Six decoration methods including heat stamping, embossing, and spray coating give brand teams real flexibility. A natural fit for face toners, hair treatments, and adjacent rinse-off formats where everyday usability counts.

Why brands choose this

• Decoration versatility that keeps brand identity sharp: Six customization methods — silk screen printing, heat stamping, embossing, spray painting, labelling, and spray coating — mean this cap can flex from minimal and clean to heavily branded without switching components or vendors.
• Industry-standard 37-400 neck finish reduces development risk: The 400 neck is one of the most widely used finishes in personal care, so this cap drops into existing tooling and bottle ranges with minimal qualification work — a practical advantage for development teams ranging multiple SKUs.
• PCR-compatible material for brands with sustainability targets: Polypropylene construction that can incorporate post-consumer recycled content lets brand teams address material reduction goals without a full packaging redesign — a growing expectation in face toner and hair care categories where conscious consumers are paying close attention.

Decoration

Finishes