Abstract: The invention has for its object to provide a heat-shrinkable laminated film for deep drawing, which has an increased carbon dioxide transmission rate (CO2TR) and an enhanced ratio (CO2TR/O2TR) of carbon dioxide transmission rate-to-oxygen transmission rate (O2TR), and is less susceptible to pinholes. In the inventive heat-shrinkable laminated film for deep drawing, a polyamide resin composition layer (a) containing a polyamide resin mixture comprising 60 to 95% by mass of an aliphatic polyamide resin (A) and 5 to 40% by mass of a polyamide base resin (B) having a heat of crystalline fusion of 5 to 40 J/g is laminated onto a heat-sealing resin layer (a) containing a polyolefin resin via an adhesive resin layer (b).

Abstract: A food packaging method is provided in which food is packaged in a package with use of carbon dioxide to benefit from bacteriostatic effects and the food package contains the minimum reduced gas spaces and thereby has a volume substantially equal to the food volume. Tightly-fitting food packages are obtained by the method. A tightly-fitting food package is obtained by: placing at least one kind of foods selected from the group consisting of meats and processed meats in a plastic film package; blowing a carbon dioxide gas in the package to fill the package with the carbon dioxide gas in a volume of 10 to 45 cm3 per 100 g of the food as measured at 0° C. and 1 atm; and sealing and refrigerating the package.

Abstract: A food packaging method is provided in which food is packaged in a package with use of carbon dioxide to benefit from bacteriostatic effects and the food package contains the minimum reduced gas spaces and thereby has a volume substantially equal to the food volume. Tightly-fitting food packages are obtained by the method. A tightly-fitting food package is obtained by: placing at least one kind of foods selected from the group consisting of meats and processed meats in a plastic film package; blowing a carbon dioxide gas in the package to fill the package with the carbon dioxide gas in a volume of 10 to 45 cm3 per 100 g of the food as measured at 0° C. and 1 atm; and sealing and refrigerating the package.

Abstract: A deep drawn container with a top film made of a first heat shrinkable multilayer film, and a bottom film made of a second heat shrinkable multilayer film. The deep drawn container having a drawing ratio (D1) of the top film and a drawing ratio (D2) of the bottom film satisfying conditions: D1=1.1 to 4.0; D2=1.5 to 5.0; and (D2/D1)=1.05 to 4.55. A hot-water shrinkability of the first heat shrinkable multilayer film in a longitudinal direction (SM1) and in a transverse direction (ST1), and a hot-water shrinkability of the second heat shrinkable multilayer film in a longitudinal direction (SM2) and in a transverse direction (ST2) satisfy conditions: SM1=5 to 40%; ST1=5 to 40%; SM2=2 to 25%; ST2=2 to 25%; (SM1/SM2)=1.2 to 12; and (ST1/ST2)=1.2 to 12.

Abstract: A heat shrinkable multilayer film comprising an outer surface layer (a) formed of a thermoplastic resin, a first intermediate layer (b1) formed of a polyamide resin, a second intermediate layer (b2) formed of a saponified product of an ethylene-vinyl acetate copolymer, and an inner surface layer (c) formed of a polyolefin resin, wherein the shrink of the heat shrinkable multilayer film in water at 90° C. is within a range of from 3 to 45% in each of machine and transverse directions, and the polyamide resin is a mixture of 60 to 90% by weight of an aliphatic polyamide having a melting point of 210° C. or higher and 10 to 40% by weight of an aromatic polyamide comprising isophthalic acid and terephthalic acid as main components.

Abstract: A deep drawing heat shrinkable multilayer film includes: an intermediate layer made of a vinylidene chloride copolymer resin (a); and a resin layer made of a first thermoplastic resin (b) layered on at least one surface of the intermediate layer. The multilayer film has hot water shrinkabilities in longitudinal and transverse directions at a temperature of 90° C. range from 3% to 35% respectively.

Abstract: The invention has for its object to provide a heat-shrinkable laminated film for deep drawing, which has an increased carbon dioxide transmission rate (CO2TR) and an enhanced ratio (CO2TR/O2TR) of carbon dioxide transmission rate-to-oxygen transmission rate (O2TR), and is less susceptible to pinholes. In the inventive heat-shrinkable laminated film for deep drawing, a polyamide resin composition layer (a) containing a polyamide resin mixture comprising 60 to 95% by mass of an aliphatic polyamide resin (A) and 5 to 40% by mass of a polyamide base resin (B) having a heat of crystalline fusion of 5 to 40 J/g is laminated onto a heat-sealing resin layer (a) containing a polyolefin resin via an adhesive resin layer (b).

Abstract: A food packaging method is provided in which food is packaged in a package with use of carbon dioxide to benefit from bacteriostatic effects and the food package contains the minimum reduced gas spaces and thereby has a volume substantially equal to the food volume. Tightly-fitting food packages are obtained by the method. A tightly-fitting food package is obtained by: placing at least one kind of foods selected from the group consisting of meats and processed meats in a plastic film package; blowing a carbon dioxide gas in the package to fill the package with the carbon dioxide gas in a volume of 10 to 45 cm3 per 100 g of the food as measured at 0° C. and 1 atm; and sealing and refrigerating the package.

Abstract: A deep drawing packaging container comprising: a top film made of a first heat shrinkable multilayer film; and a bottom film made of a second heat shrinkable multilayer film, the deep drawing packaging container being formed by deep drawing, so that a drawing ratio (D1) of the top film and a drawing ratio (D2) of the bottom film satisfy conditions: D1=1.1 to 4.0; D2=1.5 to 5.0; and (D2/D1)=1.05 to 4.55, wherein a hot-water shrinkability (SM1) in a longitudinal direction and a hot-water shrinkability (ST1) in a transverse direction of the first heat shrinkable multilayer film and a hot-water shrinkability (SM2) in a longitudinal direction and a hot-water shrinkability (ST2) in a transverse direction of the second heat shrinkable multilayer film satisfy conditions: SM1=5 to 40%; ST1=5 to 40%; SM2=2 to 25%; ST2=2 to 25%; (SM1/SM2)=1.2 to 12; and (ST1/ST2)=1.

Abstract: A heat shrinkable multilayer film comprising an outer surface layer (a) formed of a thermoplastic resin, a first intermediate layer (b1) formed of a polyamide resin, a second intermediate layer (b2) formed of a saponified product of an ethylene-vinyl acetate copolymer, and an inner surface layer (c) formed of a polyolefin resin, wherein the shrink of the heat shrinkable multilayer film in water at 90° C. is within a range of from 3 to 45% in each of machine and transverse directions, and the polyamide resin is a mixture of 60 to 90% by weight of an aliphatic polyamide having a melting point of 210° C. or higher and 10 to 40% by weight of an aromatic polyamide comprising isophthalic acid and terephthalic acid as main components.

Abstract: A deep drawing heat shrinkable multilayer film includes: an intermediate layer made of a vinylidene chloride copolymer resin (a); and a resin layer made of a first thermoplastic resin (b) layered on at least one surface of the intermediate layer. The multilayer film has hot water shrinkabilities in longitudinal and transverse directions at a temperature of 90° C. range from 3% to 35% respectively.