Plastic paper bag for each piece will be fine.

用塑料纸袋包装每件就行。

youdao

I have packed your egg tarts in a paper bag. would you need another plastic bag?

我给您装在纸袋里，您用不用把它装在塑料袋里。

youdao

He rinsed the flecked mesh of scales and the red flesh inside, then wrapped the fish in paper and put it in a plastic bag.

他三下五除二地冲净了带有斑点的鱼鳞以及里面鲜红的鱼肉，然后把鱼包裹在纸里，再放进一个塑料袋。

youdao

"By charging a nominal 5-cent fee for each paper and plastic bag, customers become incentivized to either forego a bag or bring a reusable bag rather than pay the 5-cent fee, " said Keith Anderson, interim director of the district's Department of the Environment, who came to Trenton to testify about the bill.

MSN: Reusable shopping bag measure advances

It takes four times as much energy to produce a paper bag than it does plastic, and when they're dumped away in landfills, paper bags don't biodegrade any better than plastic.

FORBES: Magazine Article

They even came with a plastic bag for easy transportation and tissue paper to wrap them.

WSJ: An Enduring Tradition