1950s mens shirts polyester blend ? country of origin ?

hi ! i have been collecting antique and vintage 20s, 30s, 40s,50s and 60 mens clothing and suits ! for years and have been very much in to the diferent edwardian, swing, rockabilly , and greaser movements , during that time ! what im trying to do is find a proper way to idenify 50s and early 60s mens shirts. im very confused because alot of what i find in thriftshops, goodwills, ebay and online vintage stores ! that appear to be from the era have terms like perma press or permanet press on the label ,also alot times the material is a polester blend or half 40% polyester rayon blend ? even what some are selling on ebay ! one of my Qestions is when did polyester blend mens shirtsand pants first come on the market ? also are most mid 50's to early pre 1964 era mens shirts made in america? im finding alot of shirts that have vintage style and even the labels appear from the era ! but there made in different asian and south american countrys ? also some have machine washing instruction tags that read line dry only ! please help me out thanks bob??

also! are there any good guides ? on vintage 50s early 60s clothing targeted to the younger man in the era instead of the older gentlemen of the time ? thanks !

It was actually referred to as Dacron in the early to mid 50s. I've owned several 50s shirts made of a dacron and rayon/acetate blend. Some gabardines were made from it as well. It still kept a decent drape but the later 60s stuff was rubbish in comparison. If you want some good references, watch some Leave It To Beaver episodes.

hi !! i have found a shirt that says its made out of a decron polyester and rayon blend the name brand is laura ? looks very 50s to early 60s ? also what about the country of origin , i see alot of shirts being sold on ebay from different asian and south american countrys ??

thanks