On Jan 31, 2011 I answered the following question from with a blog post.
“ Would you please inform me, if we want to produce PP/tie layer/PE films, what is the tie layer between PP and PE layers? “
We recently received a comment from Umit Sancar with some additional information and a recommendation on a material he seems to have some experience with. He replies
“My opinion is that I guess you may use tie layers which adheres both PE and PP. There are such tie layers on the market which can be used in Cast film applications successfully.
Mitsui's NF912 is one of them.
First I want to thank him for the comment and recommendation.
It is a good thought process in that he is recommending the use of a tie layer recommended for both PP and PE film types to other incompatible materials (nylon, EVOH etc). I would expect that this is a good approach and that the bond formed would be sufficient to make a good product, the only question being would it meet a set of specifications for a particular product. I tend to be less concerned with what a specification says (particular values often determined in an arbitrary way) than what it means, or the fitness for use of the product (will not delaminate on forming collar) so I would thing this approach should give very fit for use products.
Thanks again for the recommendation