Closures and liners
Updated
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What is here
301 continuous thread, 25 dome lids, 11 lug and twist, 5 tub lids and 3 specialty closures. By liner 103 HIS, 50 F217, 45 pressure-sensitive, 33 with none and 32 standard plastisol, with foam behind them.
Induction sealing for a freshness claim
A bonded membrane gives tamper evidence a customer can see and a barrier that holds with the cap off. For a natural butter sold on being fresh and unpreserved, that is worth the sealing step.
And it needs a machine
Those 103 closures are foil-faced liners until they pass under an induction head at the right power and line speed. The capability is the purchase, not the cap.
Oils attack liners slowly
Essential oils and some carrier oils soften, swell or craze several liner materials over months. The symptom is a cap that no longer seals, and it appears long after the filling day.
So ask with the oils named
Not whether a liner is suitable for cosmetics, but whether it has been tested against this carrier at this essential oil loading. The first question gets an optimistic answer.
Dome lids for presentation
Twenty-five of them, and they suit a jar meant to be looked at and opened often. For a product held through a season they are the weaker barrier, and knowing which job the jar has settles it.
Standardize on one wide neck
With 70-400 carrying 52 containers and 89-400 carrying 27, there are two obvious places to build a range. One neck means one closure, one liner and one induction setting across the line.
103 induction-seal options is the most in the library
Which matters because this is also the category most likely to be sold on being fresh and lightly preserved. The capability and the claim line up here better than on any other shelf.