Another word for "virgin plastics" [closed]

I'm looking for an alternative for the well established term of "virgin plastic pellets", meaning pellets that have been freshly produced and not used to make a plastic product yet. I'm using it in an academic context where it is well understood, but would like to avoid the term "virgin" (not because I think it is too offensive but to use a more wholesome neutral language).

Your question says the word virgin is "well established" and you're "using it in an academic context where it is well understood".

You don't want to use the word virgin because you want "more wholesome neutral language".

Virgin is wholesome (what could be more wholesome?), and it's entirely neutral. As FumbleFingers commented, "virgin forests, virgin copper, extra virgin olive oil" are neutral collocations, not to mention "virgin snow".

There is no better word.

Your audience will expect it and understand it. You're overthinking. Don't make them overthink it as well.

An alternative that specifies the plastic is being used for the first time is first-use, a compound modifier. In particular, it is often used in contrast to recycled plastics, or plastics that are sourced from recycled materials.

Examples:

For the first time ever, recycled plastics cost more than first-use plastic material, according to The Guardian. (m/Oppenheim)

This card is made of 85% of pre-consumer, post-industrial recycled material. As a result, it contributes reducing the use of virgin PVC, first-use PVC by 85%. (Thales)

Nonetheless, individuals can abide by the very simple mindful resolution of minimizing their use of first-use plastic or avoiding it altogether; or, at the very least limiting use of plastics to reusable and recycled forms. (Chiappelli, Francesco, Emma Reyes, and Ruth Toruño. "Climate Crisis Impact on AIDS, IRIS and Neuro-AIDS." Global Virology III: Virology in the 21st Century. Springer, Cham, 2019. 575-603.)

Here they are turned into 100% recycled polyester and nylon pellets, called NetPlus, which are sold to companies as a sustainable alternative to first-use plastics (The Guardian)