The phrase "a plastic package" is correct and usable in written English.
You can use it when referring to a package made of plastic material, often in contexts related to packaging, shipping, or product descriptions.
Example: "The product arrived in a plastic package that was easy to open and resealable."
Alternatives: "a plastic container" or "a plastic wrapping".
He rooted out a plastic package that looked like bacon.
Looking at it, there was nothing special about this one – a plain roll in a plastic package, no salad or garnish, a little too much mayo.
If you ask for one, they might bring you some toilet paper or try to sell you a plastic package of Tempo-brand tissues, so bring your own.
As I gathered my belongings, my seat mate pulled a plastic package out of her large shopping bag, leaned over me and asked, "Would you like a bra?" Having never been faced with such a decision on a train, or anywhere else for that matter, I offered no immediate response.
Recently, Connolly et al. [5] used Helium/air plasma at atmospheric pressure for antimicrobial efficacy against E.coli in a plastic package.
Up until then, meat had always been something that came from a plastic package at the grocery store, not from a living, breathing animal with a face and a mom.
At Eastman Chemical, they devised a plastic packaging that could more than double the shelf life of beer and soda.
Ahmet Nalincioglu, the managing director of Elektroplasmin, a plastic packaging company based in Istanbul, said many plastics producers would have to try to raise prices.
Every day they were driven for an hour and a half to work then forced to do a gruelling 12-hour shift in a plastic packaging factory.
Saffell & McAdam, Inc., an Irvine-based general contractor, has begun construction on the $6.3 million headquarters for Setco Inc., a plastic packaging firm.
Her father is a salesman in Atlanta for the Intertape Polymer Group, a plastic-packaging manufacturer.
