Method of induction sealing liners to cartons

A process for affixing a filled and sealed liner bag in a bag-in-box type single-serving carton for particulate product without breaking the seal of the liner bag;

• said process comprising the steps of:
• applying a heat activatable, nontacky adhesive to at least one of an interior of the single-serving carton and an exterior of the liner bag, the carton interior having perforated access flaps defining an access area to the carton interior;
• inserting the filled and sealed liner bag into the single-serving carton;
• closing and sealing the single-serving carton over the filled and sealed liner bag;
• applying at least one of vacuum and pressure to the single-serving carton after closing and sealing the single-serving carton to cause the liner to contact the adhesive at an interface with the interior of the single-serving carton;
• and
• activating the adhesive by heating after closing and sealing the single-serving carton thereby bonding the liner to the single-serving carton and forming a weakened tear line in the liner corresponding to the perforated access flaps.

A process for affixing a filled and sealed liner bag to a bowl in a bag-in-bowl type carton for particulate product without breaking the seal of the liner bag;

• said process comprising the steps of:
• applying a heat activatable, nontacky adhesive to at least one of an interior of the bowl or a bowl rim and an exterior of the liner bag;
• inserting the filled and sealed liner bag into the carton;
• closing and sealing the carton over the filled and sealer liner bag;
• applying at least one of vacuum and pressure to the carton after closing and sealing the carton to cause the liner to contact the adhesive;
• and
• heating the adhesive after closing and sealing the carton thereby bonding the filled liner to the bowl without breaking the seal of the liner.

Process for affixing a filled and sealed liner bag to the dispensing assembly of a bag-in-box type carton without breaking the seal of the filled liner;

• said process comprising the steps of:
• applying a heat activatable, nontacky adhesive to at least one of an interior of a carton having a dispensing flap and an exterior of the liner bag;
• inserting the filled and sealed liner bag into the carton;
• closing and sealing the carton over the filled and sealed liner bag;
• applying at least one of vacuum and pressure to the carton after closing and sealing the carton to cause the liner to contact the adhesive at an interface with the interior of the carton;
• and
• heating the adhesive after closing and sealing the carton thereby bonding the liner to the carton without breaking the seal of the liner;
• said filled liner being bonded to said flap along a weakened tear line without breaking the seal of the liner whereby upon initial opening of the flap that portion of the liner bonded thereto separates from the liner along the weakened tear line thereby providing access to the contents of the carton.

A process for affixing a filled and sealed liner bag in a bag-in-box type carton for particulate product without breaking the seal of the liner bag;

• said process comprising the steps of:
• forming the carton having top flaps, bottom flaps, and side panels defining an interior between the flaps;
• applying an activatable, nontacky adhesive to at least one of an interior of the carton and an exterior of the liner bag;
• closing and sealing the bottom flaps;
• inserting the filled and sealed liner bag into the carton through the top flaps;
• applying at least one of vacuum and pressure to the carton to cause the liner to contact adhesive at an interface with the interior of the carton while the top flaps remain open;
• activating the activatable, nontacky adhesive thereby bonding the liner to the carton without breaking the seal of the liner such that liner is secured to the carton while the top flaps remain open;
• and
• closing and sealing the top flaps of the carton over the filled and sealed liner bag after the liner bag has been bonded to the carton.

A process for affixing a filled and sealed liner bag in a bag-in-box type single-serving carton for particulate product without breaking the seal of the liner bag;

• said process comprising the steps of:
• forming the single-serving carton having top flaps, bottom flaps, and side panels defining an interior between the flaps such that the side panels have perforated access flaps defining an access area to an interior of the carton;
• applying an activatable, nontacky adhesive to at least one of the interior of the single-serving carton and an exterior of the liner bag;
• closing and sealing the bottom flaps;
• inserting the filled and sealed liner bag into the single-serving carton through the top flaps;
• applying at least one of vacuum and pressure to the single-serving carton to cause the liner to contact the adhesive at an interface with the access flaps of the single-serving carton while the top flaps remains open;
• activating the activatable, nontacky adhesive thereby bonding the liner to the single-serving carton without breaking the seal of the liner such that liner is secured to the single-serving carton while the top flap remains open and forming a weakened tear line in the liner corresponding to the perforated access flaps;
• and
• closing and sealing the top flaps of the single-serving carton over the filled and sealed liner bag after the liner bag has been bonded to the single-serving carton.