My husband works in home construction and when they start staining woodwork his clothes smell terrible! The odor is so strong and it doesn't matter how much I wash them it doesn't budge.
Polyurethane odor may not come out of some fabrics ever. I would suggest you buy painters coveralls for your husband to wear when he has this type of job to do and find a place to hang (outside/shed) until he needs them again or buy disposable clothing.
Here is something you can try:
Take a bucket of water mixed with ½ cup of vinegar and ½ cup of baking soda (or more). A mixture of baking soda and vinegar creates a foaming action that may cut/lift stains and smells. Rinse the clothes in clean water, then hang it outside to dry. Then wash as usual might work.
A vinegar rinse is good for removing odors.
