초록 ▼

A composite barrier laminate for a carton for citrus juices that extends the shelf life of the citrus juice by inhibiting the proliferation of microbial growth therein. The composite barrier laminate has a plurality of layers with one layer being a thin barrier skin coat in contact with the juice. T

A composite barrier laminate for a carton for citrus juices that extends the shelf life of the citrus juice by inhibiting the proliferation of microbial growth therein. The composite barrier laminate has a plurality of layers with one layer being a thin barrier skin coat in contact with the juice. The skin coat is impervious to the antimicrobial agent D-limonene and is effective to prevent the migration of the D-limonene found in the citrus juice. A method for extending the shelf life of a citrus juice stored in a paperboard carton for preventing the D-limonene present in the citrus juice stored in a carton from migrating into the carton structure by making the innermost layer of the carton impervious to D-limonene is disclosed as is a method for preserving the antimicrobial properties present in a citrus juice that is stored in a paperboard carton formed from a laminate by preventing migration of D-limonene from the citrus juice into the laminate by making the innermost layer impervious to D-limonene.

대표청구항 ▼

A method for preserving the antimicrobial properties present in a citrus juice that is stored in a paperboard carton formed from a laminate comprised of a plurality of layers having an innermost layer that contacts the juice, the method including the step of preventing the migration of an antimicrob

A method for preserving the antimicrobial properties present in a citrus juice that is stored in a paperboard carton formed from a laminate comprised of a plurality of layers having an innermost layer that contacts the juice, the method including the step of preventing the migration of an antimicrobial agent comprising D-limonene present in the juice into the plurality of layers of the carton by making the innermost layer of the carton of a material that is impervious to the antimicrobial agent comprising D-liminone wherein said carton is formed from a barrier laminate comprising: 1. a paperboard substrate having an interior surface and an exterior surface; 2. a heat sealable layer of a heat sealable low density polyethylene coated on said exterior surface of said paperboard substrate; 3. a heat sealable layer of a heat sealable low density polyethylene on the said interior surface of said paperboard substrate; 4. a tie layer of modified low density polyethylene based resin on said heat sealable layer of low density polyethylene on the said interior surface of said substrate; and 5. a skin coat layer applied directly onto said tie layer, said skin coat layer comprising a polymer selected from the group consisting of polyamides and copolyamides.