Package doy-pak (doy-pack).
It is a flexible flat package of a steady bottom. Oblastprimeneniya of this package is very wide. For giving of barrier properties, at production "doy-pak" the multilayered designs consisting, as a rule, of an external layer of lavsan, convenient for the press, or polyamide, and also the inside polyethylene layer providing stability and a possibility of a termosvarivaniye are used. For food applications between these two layers often include the layer of the aluminum foil which is actually 100% barrier to water, gases and contents of a package, guaranteeing significant increase in period of storage of products.
"Doy-pak" is really universal as it is possible to pack into it easily liquid and hardly fluid products (various drinks, juice, wine, mayonnaise, ketchup, sour cream, and also liquid soap, gel, detergents), the loose and raising dust substances (dried fruits, nuts, cookies, chips, coffee, tea cleaning or laundry detergents, etc.). The package can be equipped with the lateral handle and the union.