Barrier dip?

[Iga]

Does anyone happen to know what a barrier dip is? I'm translating a text, and this seems to be a production defect of a plastic container, but I have no idea how to translate it. Can U please explain what it is?

[joko]

try science or how it works sections

[Grunty]

This may not be the answer you are looking for, but barrier dips are used for inhibiting certain diseases when dipping sheep. I would guess that the plastic component has to be dipped during the manufacturing process, especially if it is being made to food standards. Or maybe the container is intended to contain a barrier dip.

[brachiopod]

A "barrier dip" is, indeed, a protective coating applied by dipping the product in a bath containing the liquid coating.

It is often used in the food industry to improve the properties of the container itself.

For example, PET (poly-ethylene tere-pthalate) is the polymer used for the 2L fizzy drink bottles. Although it has good gas impermeability properties compared to other polymers, it is not totally gas impermeable.

This means that carbon dioxide can eventually slowly leach out (causing the drink to lose its fizz and taste 'flat') and oxygen can leach in (causing it to go 'off'). Thus, filled bottles have limited shelf life.

A 'barrier' improves the properties of the polymer, for example, by either by physically reducing permeability and/or by including active compounds within the plastic layers that actively absorb oxygen.

If the 'barrier' is applied by immersing the polymer in the liquid barrier material, then it is a 'barrier dip'.

I can't help with the translation, though !!

[brachiopod]

*Can't spell - missed an 'h' - it's Poly-Ethylene Tere-phthalate.