Generally, yes, plastic film should be as clean and dry as possible before recycling. It is very hard to remove contaminants. When washing up after a meal, I will sometimes wash the dirty plastic packaging film in with the dirty dishwater. Try not to waste water, but try to get the bags clean if you can.
However, some of those types of plastic that you mention, unfortunately, aren't recyclable and should just be disposed of in the garbage. Most frozen food bags are not recyclable, with the exception of some frozen peas and corn bags (sometimes they show the #4 with chasing arrows, but often not). The stiff, multi-layer, shiny bags are not recyclable. Shredded cheese bags are multi-layer pouches and not recyclable. The shrink wrap over store baked chicken isn't recyclable, it's made from PVC - Polyvinyl Chloride, and PVC isn't recyclable anywhere. Also, the protein contamination from the chicken is very difficult to clean but that is not relevant here.
Generally, yes, plastic film should be as clean and dry as possible before recycling. It is very hard to remove contaminants. When washing up after a meal, I will sometimes wash the dirty plastic packaging film in with the dirty dishwater. Try not to waste water, but try to get the bags clean if you can.
However, some of those types of plastic that you mention, unfortunately, aren't recyclable and should just be disposed of in the garbage. Most frozen food bags are not recyclable, with the exception of some frozen peas and corn bags (sometimes they show the #4 with chasing arrows, but often not). The stiff, multi-layer, shiny bags are not recyclable. Shredded cheese bags are multi-layer pouches and not recyclable. The shrink wrap over store baked chicken isn't recyclable, it's made from PVC - Polyvinyl Chloride, and PVC isn't recyclable anywhere. Also, the protein contamination from the chicken is very difficult to clean but that is not relevant here.