Custom Valve Bags

Custom Plastic Valve Bags have an opening or Valve in one corner through which the plastic bag is filled. The valve is made with an inner flap that functions as a self-closing check valve after filling. It is available with a plain valve or with an extended inner sleeve of paper or film.  If an extended "tuck-in sleeve" is used, the sleeve is manually folded down and back into the pocket under the sleeve for positive closure against shifting.