Package having a dual-film lid comprising a gas-impermeable...

B - Operations – Transporting – 65 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B65D 77/20 (2006.01) B65D 81/20 (2006.01)

Patent

CA 2272257

A dual-film package and method for making such package is disclosed which combines the manufacturing simplicity of a package having a single, peelable lid with the consistent peelability of a package having separate permeable and impermeable lids. This is accomplished by providing a support member (12) and a lid (24) having a gas- permeable film (26) and a substantially gas-impermeable film (28). A first heat-weld (30) bonds the gas-permeable film to the support member and a second heat-weld (32) bonds the gas-impermeable film to the gas-permeable film. The first and second heat-welds each have a bond-strength which is greater than the intra-film cohesive strength of the gas-permeable film so that the lid preferentially delaminates within the gas-permeable film upon peeling, thereby leaving a portion of the gas-permeable film lidded to the support member.

On décrit un emballage à deux pellicules et un procédé de fabrication de ce dernier qui combine la simplicité de fabrication d'un emballage à couvercle unique pelable et la caractéristique de pelabilité d'un emballage comportant des couvercles perméable et imperméable séparés. On utilise pour cela un élément (12) de support et un couvercle (24) comprenant une pellicule (26) perméable aux gaz et une pellicule (28) sensiblement imperméable aux gaz. Une première thermosoudure (30) lie la pellicule perméable aux gaz à l'élément de support et une deuxième thermosoudure (32) lie la pellicule imperméable aux gaz à la pellicule perméable aux gaz. Les première et deuxième thermosoudures ont chacune une résistance d'adhésion qui est supérieure à la résistance cohésive intra-pelliculaire de la pellicule perméable aux gaz de sorte que le couvercle se décolle de préférence à l'intérieur de la pellicule perméable aux gaz lorsqu'on l'arrache, ceci ayant pour effet de laisser une partie de la pellicule perméable aux gaz collée sur l'élément de support.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Package having a dual-film lid comprising a gas-impermeable... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Package having a dual-film lid comprising a gas-impermeable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Package having a dual-film lid comprising a gas-impermeable... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1873888

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.