A packaging device allowing for the distribution, storage and cooking of various food products, such as perishable or frozen food product(s). The packaging device includes a plurality of micro-perforations that may promote the extended shelf-life of the perishable food product and the maintenance of
A packaging device allowing for the distribution, storage and cooking of various food products, such as perishable or frozen food product(s). The packaging device includes a plurality of micro-perforations that may promote the extended shelf-life of the perishable food product and the maintenance of the quality of the perishable food product or be configured to maintain the integrity of a frozen food product. The packaging device also includes a venting system that allows the cooking of the perishable or frozen food products within the packaging device.
대표청구항▼
1. A microwavable food package, comprising: an expandable first base film and an expandable second base film that are bonded or laminated together, wherein the expandable first and second base films are configured to form the microwavable food package having an inner surface which defines an interio
1. A microwavable food package, comprising: an expandable first base film and an expandable second base film that are bonded or laminated together, wherein the expandable first and second base films are configured to form the microwavable food package having an inner surface which defines an interior space for storing and cooking food, and an outer surface which is in contact with an exterior environment, and wherein the interior space and the first and second base films expand in response to pressure buildup created by a microwave cooking process; anda plurality of laser-formed microperforations that have a diameter of 1 to 500 microns, that extend from the interior space through the first base film and the second base film so as to be open prior to and during the microwave cooking process, that are arranged at a density of 1 to 50 microperforations per cm2, that are located in proximity to the food, and that expand during the microwave cooking process;a respiration system including at least some of the plurality of microperforations that are open prior to the microwave cooking process and that have a diameter configured to allow the transmission of gasses between the interior space and the exterior environment so that the interior space has an internal atmosphere including 2-18% O2, 5-22% CO2, and relative humidity of ≥70%, during at least a portion of the ripening, distribution, or storage processes of the food; anda venting system including at least some of the microperforations of the respiration system and a weakened area formed in the first and/or second base film(s) around the at least some of the microperforations of the respiration system;wherein the weakened area opens due to the pressure buildup in the interior space created by the microwave cooking process thereby controllably releasing the pressure buildup. 2. The microwavable food package of claim 1, wherein the pressure buildup in the interior space is initially released through the at least some of the microperforations of the respiration system that are included in the venting system. 3. The microwavable food package of claim 2, wherein the pressure buildup released by the at least some of the microperforations of the respiration system facilitates opening the weakened area. 4. The microwavable food package of claim 1, wherein the venting system further includes one or more additional laser-formed microperforations that are in addition to the microperforations in the respiration system, and that extend at least partially through the first and/or second base films near the weakened area. 5. The microwavable food package of claim 4, wherein the pressure buildup from the interior space passes through the one or more additional microperforations to further open the weakened area. 6. The microwavable food package of claim 5, wherein the one or more additional microperforations in the first and/or second base films exposes the interior space to the exterior environment upon the further opening of the weakened area. 7. The microwavable food package of claim 6, wherein the one or more additional microperforations controllably release the excess pressure buildup in the interior space during the microwave cooking process to provide a steam cooking function. 8. The microwavable food package of claim 1, wherein the respiration microperforations have a diameter of 1 to 200 microns. 9. The microwavable food package of claim 1, wherein the one or more additional microperforations have a diameter of 1 to 500 microns. 10. The microwavable food package of claim 1, wherein the venting system includes at least one of a slit, directed channel, barrier, venting point, or secondary seal. 11. A microwavable food package, comprising: an expandable first base film and an expandable second base film that are bonded or laminated together, wherein the expandable first and second base films are configured to form the microwavable food package having an inner surface which defines an interior space for storing and cooking food, and an outer surface which is in contact with an exterior environment, and wherein the interior space and the first and second base films expand in response to pressure buildup created by a microwave cooking process; anda plurality of laser-formed microperforations that have a diameter of 1 to 500 microns, that extend from the interior space through the first base film and the second base film so as to be open prior to and during the microwave cooking process, that are arranged at a density of 1 to 50 micro-perforations per cm2, that are located in proximity to the food, and that expand during the microwave cooking process;a respiration system including at least some of the plurality of microperforations that are open prior to the microwave cooking process and that have a diameter configured to allow the transmission of gasses between the interior space and the exterior environment so that the interior space has an internal atmosphere including 2-18% O2, 5-22% CO2, and relative humidity of ≥70%, during at least a portion of the ripening, distribution, or storage processes of the food; anda venting system including at least some of the microperforations of the respiration system and a weakened area formed in the first and/or second base film(s) around the at least some of the microperforations of the respiration system;wherein the pressure buildup in the interior space is initially released through the at least some of the microperforations of the respiration system that are included in the venting system; andwherein the weakened area opens due to the pressure buildup in the interior space created by the microwave cooking process, thereby controllably releasing the pressure buildup. 12. The microwavable food package of claim 11, wherein the venting system further includes one or more additional laser-formed microperforations that are in addition to the microperforations in the respiration system, and that extend at least partially through the first and/or second base films near the weakened area. 13. The microwavable food package of claim 12, wherein the pressure buildup from the interior space passes through the one or more additional microperforations to further open the weakened area. 14. The microwavable food package of claim 13, wherein the one or more additional microperforations in the first and/or second base films exposes the interior space to the exterior environment upon the further opening of the weakened area. 15. The microwavable food package of claim 14, wherein the one or more additional microperforations controllably release the pressure buildup in the interior space during the microwave cooking process to provide a steam cooking function. 16. The microwavable food package of claim 11, wherein the respiration microperforations have a diameter of 1 to 200 microns. 17. The microwavable food package of claim 11, wherein the one or more additional microperforations have a diameter of 1 to 500 microns. 18. The microwavable food package of claim 11, wherein the venting system includes at least one of a slit, directed channel, barrier, venting point, or secondary seal. 19. A microwavable food package, comprising: an expandable first base film and an expandable second base film that are bonded or laminated together, wherein the expandable first and second base films are configured to form the microwavable food package having an inner surface which defines an interior space for storing and cooking food, and an outer surface which is in contact with an exterior environment, and wherein the interior space and the first and second base films expand in response to pressure buildup created by a microwave cooking process;a respiration system including plurality of laser-formed microperforations that have a diameter of 1 to 200 microns, that extend from the interior space through the first base film and the second base film so as to be open prior to and during the microwave cooking process, that are arranged at a density of 1 to 50 micro-perforations per cm2, that are located in proximity to the food, that are configured to allow the transmission of gasses between the interior space and the exterior environment so that the interior space has an internal atmosphere including 2-18% O2, 5-22% CO2, and relative humidity of ≥70%, during at least a portion of the ripening, distribution, or storage processes of the food, and that expand during the microwave cooking process; anda venting system including at least some of the microperforations of the respiration system, a weakened area formed in the first and/or second base film(s) around the at least some of the microperforations of the respiration system, and one or more additional laser-formed microperforations that are in addition to the microperforations in the respiration system, and that extend at least partially through the first and/or second base films near the weakened area;wherein the pressure build up in the interior space is initially released through the at least some of the microperforations of the respiration system that are included in the venting system;wherein the weakened area opens due to the pressure buildup in the interior space created by the microwave cooking process to open the one or more additional microperforations;wherein the one or more additional microperforations in the first and/or second base films further exposes the interior space to the exterior environment; andwherein the one or more additional microperforations controllably release the pressure buildup in the interior space during the microwave cooking process to provide a steam cooking function. 20. The microwavable food package of claim 19, wherein the venting system includes at least one of a slit, directed channel, barrier, venting point, or secondary seal.
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