Multilayer film used with flexible packaging

Abstract

The present disclosure describes a multilayer film for use in making a bag for bag in a box packaging. The film includes a first layer made of a PE material, a second layer adjacent the first layer made of a PE material and further including an oxygen scavenger, a third layer adjacent the second layer made of an adhesive resin material, a fourth layer adjacent the third layer made of a polyamide material, a fifth layer adjacent the fourth layer made of an EVOH material, a sixth layer adjacent the fifth layer made of a polyamide material, a seventh layer adjacent the sixth layer made of an adhesive resin material, an eighth layer adjacent the seventh layer made of a PE material, and a ninth layer adjacent the eighth layer made of a PE material.

1 . A multilayer film for use in making a bag for bag in a box packaging, comprising:
 a first layer comprising a polyethylene material;   a second layer adjacent the first layer comprising a polyethylene material and further comprising an oxygen scavenger;   a third layer adjacent the second layer comprising an adhesive resin material;   a fourth layer adjacent the third layer comprising a polyamide material;   a fifth layer adjacent the fourth layer comprising an EVOH material;   a sixth layer adjacent the fifth layer comprising a polyamide material;   a seventh layer adjacent the sixth layer comprising an adhesive resin material;   an eighth layer adjacent the seventh layer comprising a polyethylene material; and   a ninth layer adjacent the eighth layer comprising a polyethylene material.   
     
     
         2 . The multilayer film of  claim 1 , wherein the first layer is a sealant layer that contacts liquid in the packaging. 
     
     
         3 . The multilayer film of  claim 1 , wherein the oxygen scavenger is an iron oxide oxygen scavenger. 
     
     
         4 . The multilayer film of  claim 1 , wherein the fourth and sixth layers include nylon. 
     
     
         5 . The multilayer film of  claim 1 , wherein the fifth layer has a 27 mole percent ethylene content. 
     
     
         6 . The multilayer film of  claim 1 , wherein the film is used to make a sealed pouch having an aperture to which is connected a spout, and the spout is connected to a fluid dispenser. 
     
     
         7 . The multilayer film of  claim 6 , wherein the pouch has a thickness in the range of 35 to 150 microns. 
     
     
         8 . The multilayer film of  claim 1 , wherein the film has an oxygen transfer rate of no more than 0.02 cc/100 in 2 /24 hours at 0% relative humidity. 
     
     
         9 . The multilayer film of  claim 1 , wherein the first, second, eighth, and ninth layers comprise an LLDPE material 
     
     
         10 . A multilayer film for use in making a bag for bag in a box packaging, comprising:
 a first layer comprising a polyethylene material;   a second layer adjacent the first layer comprising a polyethylene material;   a third layer adjacent the second layer comprising an adhesive resin material;   a fourth layer adjacent the third layer comprising a polyamide material;   a fifth layer adjacent the fourth layer comprising an EVOH material;   a sixth layer adjacent the fifth layer comprising a polyamide material;   a seventh layer adjacent the sixth layer comprising an adhesive resin material;   an eighth layer adjacent the seventh layer comprising a polyethylene material;   a ninth layer adjacent the eighth layer comprising a ULDPE material;   a tenth layer adjacent the ninth layer comprising a ULDPE material;   an eleventh layer adjacent the tenth layer comprising a polyethylene material;   a twelfth layer adjacent the eleventh layer comprising an adhesive resin material;   a thirteenth layer adjacent the twelfth layer comprising a polyamide material;   a fourteenth layer adjacent the thirteenth layer comprising an EVOH material;   a fifteenth layer adjacent the fourteenth layer comprising a polyamide material;   a sixteenth layer adjacent the fifteenth layer comprising an adhesive resin material;   a seventeenth layer adjacent the sixteenth layer comprising a polyethylene material, and   an eighteenth layer adjacent the seventeenth layer comprising a polyethylene material.   
     
     
         11 . The film of  claim 10 , wherein the first layer is a sealant layer that contacts liquid in the packaging. 
     
     
         12 . The film of  claim 11 , wherein the second layer further includes an oxygen scavenger. 
     
     
         13 . The film of  claim 10 , wherein the fourth, sixth, thirteenth, and fifteenth layers include nylon. 
     
     
         14 . The film of  claim 12 , wherein the fifth and fourteenth layers have a mole percent ethylene content of 29%. 
     
     
         15 . The film of  claim 12 , wherein the fifth and fourteenth layers have a mole percent ethylene content of 27%. 
     
     
         16 . The multilayer film of  claim 10 , wherein the film is used to make a sealed pouch having an aperture to which is connected a spout, and the spout is connected to a fluid dispenser. 
     
     
         17 . The multilayer film of  claim 16 , wherein the pouch has a thickness in the range of 35 to 150 microns. 
     
     
         18 . The multilayer film of  claim 10 , wherein the film has an oxygen transfer rate of no more than 0.01 cc/100 in 2 /24 hours at 0% relative humidity. 
     
     
         19 . The multilayer film of  claim 10 , wherein the first, second, eighth, eleventh, seventeenth, and eighteenth layers comprise an LLDPE material. 
     
     
         20 . A multilayer film for use in making a bag for bag in a box packaging, comprising:
 a first layer comprising a polyethylene material;   a second layer adjacent the first layer comprising a polyethylene material and further comprising an oxygen scavenger;   a third layer adjacent the second layer comprising an adhesive resin material;   a fourth layer adjacent the third layer comprising an EVOH material;   a fifth layer adjacent the fourth layer comprising an adhesive resin material;   a sixth layer adjacent the fifth layer comprising a polyethylene material; and   a seventh layer adjacent the sixth layer comprising a polyethylene material.   
     
     
         21 . Packaging for a liquid beverage, comprising:
 a fluid dispenser;   a pouch defining an interior region and including an aperture, the pouch made of a film comprising:
 a first layer comprising a PE material, 
 a second layer adjacent the first layer comprising a PE material and further comprising an oxygen scavenger, 
 a third layer adjacent the second layer comprising an adhesive resin material, 
 a fourth layer adjacent the third layer comprising a polyamide material, 
 a fifth layer adjacent the fourth layer comprising an EVOH material, 
 a sixth layer adjacent the fifth layer comprising a polyamide material, 
 a seventh layer adjacent the sixth layer comprising an adhesive resin material, 
 an eighth layer adjacent the seventh layer comprising a PE material, and 
 a ninth layer adjacent the eighth layer comprising a PE material; and 
   a spout connected to the pouch at the aperture and the fluid dispenser being connected to the spout such that the fluid dispenser is in fluid communication with the interior region of the pouch;   wherein, when the fluid dispenser defines a fluid passageway for fluid to flow out of the fluid dispenser via a dispensing port.   
     
     
         22 . The packaging of  claim 21 , further including a container, wherein the container includes an aperture, the pouch is positioned inside the container, and the fluid dispenser is secured in the aperture in the container and extends at least partly outside of the container. 
     
     
         23 . The packaging of  claim 21 , wherein the oxygen transfer rate of the packaging is no more than 0.03 cc/100 in 2 /24 hours at 0% relative humidity. 
     
     
         24 . The packaging of  claim 21 , wherein the fluid dispenser is made of a material that includes an oxygen scavenger. 
     
     
         25 . The packaging of  claim 21 , wherein the fluid dispenser has a flow configuration and a sealed configuration and comprises:
 a main body having an outer flow surface and an inner flow surface, the outer flow surface having an opening therethrough defining the dispensing port;   a dome member; and   a valve member having a face and being coupled to the dome member;   wherein, when the fluid dispenser is in the flow configuration, the outer flow surface, inner flow surface, and face define the fluid passageway for fluid to flow exteriorly to the inner flow surface, interiorly to out of the outer flow surface, and exit the fluid dispenser via the dispensing port.