CA2523772A1 - Packaging device and method for absorbing moisture - Google Patents
Packaging device and method for absorbing moisture Download PDFInfo
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- CA2523772A1 CA2523772A1 CA002523772A CA2523772A CA2523772A1 CA 2523772 A1 CA2523772 A1 CA 2523772A1 CA 002523772 A CA002523772 A CA 002523772A CA 2523772 A CA2523772 A CA 2523772A CA 2523772 A1 CA2523772 A1 CA 2523772A1
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- Prior art keywords
- paper
- sheets
- carbon
- sheet
- forming
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/04—Hydrocarbons
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
- D21H23/34—Knife or blade type coaters
- D21H23/36—Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade or short-dwell coaters
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Paper (AREA)
- Wrappers (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
A packaging device and method for absorbing and reducing moisture as well as a manufacturing process for such device. The packaging device is a container made from paperboard such as containerboards or linerboards with a corrugated medium. The paperboard is insulated with moisture absorbing additives comprising charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon. Perforations may be added in the boards to further permit moisture to reach the corrugated medium, permitting further absorption by the additives embedded within the corrugated medium in between the boards.
This packaging device and method is favorable for storing or transporting objects which are sensitive to or would benefit from low moisture/humidity conditions.
This packaging device and method is favorable for storing or transporting objects which are sensitive to or would benefit from low moisture/humidity conditions.
Description
WO 2004/071871 ~ ~ PCT/US2004/003745 f'"~t j~-~ .f :rr~m ',rr ~~'~~ ~~tt!~~ ~S:_~~ ~~,:;~~ ;r's~ t~_r'~~ n ~~lf rrrY~ ~~,;5~,: ~!Ir:'S~
.. r ; : ;".. . ~ J : ~:r.
Attorney Docket: 8082-4 PCT
PACKAGING DEVICE AND METHOD FOR ABSORBING MOISTURE
s This application claims priority benefits to provisional application serial number 60/445,673 filed on February 7, 2003. This application is a continuation-in-part of copending application serial No. 10/140,755 filed on May 7, 2002, the disclosure of which in its entirety is incorporated by reference herein.
io BACKGROUND OF THE INVENTION
Field of the Invention The invention is directed to a packaging device and method for absorbing moisture, steam, or condensation through the use of embedded carbon-containing substances.
is Discussion of Related Art A problem with packaging of goods arises when the packaging creates an environment which negatively affects the packaged content. One example is the packaging of fine art or other materials which decay or go bad when moisture or a zo humid condition is trapped. Another example is the negative effect on packaged food due to steam vapor in a container such as a paper box or bag. The steam that emanates from a hot food such as pizza, french fries, etc. forms condensation that settles within the box or bag, making the pizza or french fries soggy or spongelike.
In the case of packaging used for temporarily storing and transporting a hot pizza pie, zs the packaging is typically a box constructed of either corrugated boxboard, or containerboard. Corrugated boxboard is made by gluing an accordion-like sheet of paper (corrugated medium) in between two sheets of linerboard. Containerboard, or 5~;~ i' ~i~ .n '~ is': .,~'' Ct;. i~ ri~;~~. ,,~1, i~"(~; , ,..~' ~~~. ~~4'~
:,~se~ ifwlE,l~~~ 'y what is also called 'clay kraft back' is a paperboard that does not have any corrugated layer. Containerboard is commonly used for forming boxes such as a shoe box.
The condensation that settles on the inside bottom surface of the pizza box is absorbed by the pizza dough by the time the pizza is transported to a place where it can be consumed. Similarly, the Kraft Paper commonly used as grocery bags for temporarily housing other hot food such as french fries, fried chicken, etc.
also cannot absorb the vapor from the hot food. The trapped vapor renders the french fries soggy.
Accordingly, it is desirous to have a packaging device and method capable of absorbing moisture, steam, or condensation.
io SUMMARY OF THE INVENTION
According to an embodiment of the present invention, a container for housing food is provided, comprising paper having carbon additives for absorbing is moisture emanating from the food, wherein the carbon additives include one of charcoal, activated charcoal and activated carbon, wherein the paper is one of a containerboard, a linerboard, and a corrugated medium.
According to an aspect of the present invention, the container, preferably a corrugated boxboard, includes a plurality of sheets or linerboards, and the carbon zo additives are embedded in at least one of the plurality of sheets or linerboards, wherein the sheets of paper are made from a mixture of pulp, water, and the carbon additives.
Preferably, one, two, or three of the plurality of sheets is/are selectively embedded with the carbon additives. In one embodiment, one of the plurality of zs sheets is corrugated and another sheet is perforated.
r CA 02523772 2005-10-26 WO 2004/071871 ~PCT/US2004/003745 A method is also provided for absorbing moisture from food within a container comprising; embedding carbon additives within paper, and forming the container using the paper. Preferably, the carbon additives include charcoal, activated charcoal and activated carbon. The paper is one of a linerboard, a containerboard, and a corrugated medium. The paper includes a plurality of sheets, each sheet formed from a plurality of layers, and the carbon additives are embedded in at least one of the plurality of sheets. The sheets of paper are made from a mixture of pulp, water, and the carbon additives, wherein one, two or three of the plurality of sheets are embedded with the carbon additives.
io According to another embodiment of the invention, the plurality of sheets include an inner sheet and a corrugated sheet, the inner sheet having perforations and the corrugated sheet having the embedded carbon additives.
A process for manufacturing a container for storing food is also provided, comprising; forming layers of paper with embedded carbon additives by mixing pulp, is water, and the carbon additives; and forming a boxboard with a plurality of sheets of linerboards of the paper to house the food, wherein the step of forming a box includes using a plurality of layers of paper forming sheets or linerboards, including at least an inner linerboard and an outer linerboard. The process further including adding perforations to the inner linerboard and corrugating one of the plurality of sheets of zo paper.
WO 2004/071871 ~ ~ PCT/US2004/003745 . BRIEF DESCRIPTION OF THE DRAWINGS
Other uses and features of the present invention will become apparent from the following detailed description considered in connection with the accompanying drawings which disclose several embodiments of the present invention. It should be s understood, however, that the drawings are designed for the purpose of illustration only and not as an exhaustive list of its possible uses.
In the drawings wherein similar reference characters denote similar elements throughout the different embodiments:
Figure 1 shows a paper box in an opened configuration according to the io present invention;
Figure 2 shows a sideview of the paper box; and Figure 3 shows a cross-sectional view of a corrugated medium in a boxboard.
DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENTS
is The invention is directed to packaging product for housing goods. The packaging product is preferably made of paperboard, linerboard, or containerboard having charcoal, activated charcoal, or activated carbon as an additive for absorbing moisture, vapor, or condensation (hereinafter referred to as "Coalboard").
Charcoal, activated charcoal, carbon, or substances mostly comprised of carbon are used as zo additives because of their superior absorbent characteristics, partly due to their extremely vast surface area. The charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon is mixed with the wood fiber (more commonly known as pulp) in the blend chest. The refined pulp and water with the charcoal, activated charcoal, activated carbon, or substances mostly comprised of zs carbon added would then be sent on to the papermaking machine. In one embodiment, the linerboard with the embedded charcoal is disposed within a packaging container which is perforated on the interior side to enable steam vapor or humidity to enter into the corrugated medium. In another embodiment, a boxboard is made of containerboard with embedded charcoal, activated charcoal or substances s mostly comprised of carbon. With this packaging and method according to the present invention, the contents of the package can be protected against humidity, moisture, and steam.
Figure 1 shows a pizza box made of Coalboard according to the present invention. The steam vapor that is emitted from the pizza would be drawn through io the perforations and be absorbed by the charcoal. It is readily apparent that pizza is only one example of packaged food that would benefit from the vapor absorbing qualities of CoalBoard. Although this is one embodiment of the present invention, it is not the exclusive embodiment.
Referring to Figures 1 to 3 and according to a first embodiment of the present is invention, all three sheets of the boxboard 1, which comprises exterior linerboard 3, interior linerboard 5, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon. The interior linerboard 5 that faces the food product includes perforations 2 to enable the steam vapor generated from the hot food to enter into the corrugated medium 4.
ao According to a second embodiment of the invention, two sheets of the boxboard l, preferably interior linerboard 5, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon as an additive. The interior linerboard 5 facing the food product is preferably perforated 2 to enable the steam vapor generated from the hot food to enter into the Zs corrugation 4.
WO 2004/071871 ~PCT/US2004/003745 According to a third embodiment of the invention, the exterior linerboard 3, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor generated from the hot food to enter into the corrugation 4.
According to a fourth embodiment of the invention, one sheet of the boxboard 1, preferably the interior linerboard 5 is embedded with charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the io steam vapor generated from the hot food to enter into the corrugation 4.
According to a fifth embodiment of the invention, the exterior linerboard 3 is the only sheet having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor to enter into the is corrugation 4.
According to a sixth embodiment of the invention, the corrugated medium 4 is the sheet having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor generated from the hot food to enter zo into the corrugation 4.
According to a seventh embodiment of the invention, the boxboard is made from containerboard having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. In this embodiment, the boxboard does not include a corrugated medium.
WO 2004/071871 ~ PCT/US2004/003745 As an alternative to mixing the additive in the pulp formulation process, there are a number of processes that can be used to introduce charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon into paper. One exemplary process is by blade coating, which is a method of coating paper and s paperboard using a flexible blade to control the amount of coating applied to the paper. Blade-coating can take place either on a papermaking machine or on an off machine coater. The paper may be coated on one side (C1S) or both sides (C2S), or between layers of paper as described in the above embodiments. Off machine coating refers to coating paper after it comes off the papermaking machine rather than while it io is still on the machine. Preferably, an off machine coater is used to add one or more layer of coating of the carbon material to the paper. Other known processes such as bath coating or surface siezing coating may also be used to mix or coat the carbon material onto the paper.
We did four side-by-side tests with identical pizza pies under the identical is conditions. We lined the perimeter of one of the boxes with pulverized charcoal, and left the other box as it would normally be used. After nine minutes cooking at degrees (industry standard), we placed both pies in their respective boxes and let them settle for 5, 7, 10, and 15 minutes. The ftrst three tests were conducted as stated above, the third test we perforated an additional box top and stapled it to the actual zo top with charcoal sandwiched in between. In each case, the pizza that was in the box with the charcoal was noticeably more crispy. The longer the period of time that we let the pies settle, the more pronounced the effect.
Having thus described the invention with the details and particularity required by the patent laws, it is noted that modifications and variation can be made by persons zs skilled in the art in light of the above teachings. It is therefore to be understood that changes may be made in the particular embodiments of the invention disclosed which are within the scope and spirit of the invention as defined by the appended claims.
.. r ; : ;".. . ~ J : ~:r.
Attorney Docket: 8082-4 PCT
PACKAGING DEVICE AND METHOD FOR ABSORBING MOISTURE
s This application claims priority benefits to provisional application serial number 60/445,673 filed on February 7, 2003. This application is a continuation-in-part of copending application serial No. 10/140,755 filed on May 7, 2002, the disclosure of which in its entirety is incorporated by reference herein.
io BACKGROUND OF THE INVENTION
Field of the Invention The invention is directed to a packaging device and method for absorbing moisture, steam, or condensation through the use of embedded carbon-containing substances.
is Discussion of Related Art A problem with packaging of goods arises when the packaging creates an environment which negatively affects the packaged content. One example is the packaging of fine art or other materials which decay or go bad when moisture or a zo humid condition is trapped. Another example is the negative effect on packaged food due to steam vapor in a container such as a paper box or bag. The steam that emanates from a hot food such as pizza, french fries, etc. forms condensation that settles within the box or bag, making the pizza or french fries soggy or spongelike.
In the case of packaging used for temporarily storing and transporting a hot pizza pie, zs the packaging is typically a box constructed of either corrugated boxboard, or containerboard. Corrugated boxboard is made by gluing an accordion-like sheet of paper (corrugated medium) in between two sheets of linerboard. Containerboard, or 5~;~ i' ~i~ .n '~ is': .,~'' Ct;. i~ ri~;~~. ,,~1, i~"(~; , ,..~' ~~~. ~~4'~
:,~se~ ifwlE,l~~~ 'y what is also called 'clay kraft back' is a paperboard that does not have any corrugated layer. Containerboard is commonly used for forming boxes such as a shoe box.
The condensation that settles on the inside bottom surface of the pizza box is absorbed by the pizza dough by the time the pizza is transported to a place where it can be consumed. Similarly, the Kraft Paper commonly used as grocery bags for temporarily housing other hot food such as french fries, fried chicken, etc.
also cannot absorb the vapor from the hot food. The trapped vapor renders the french fries soggy.
Accordingly, it is desirous to have a packaging device and method capable of absorbing moisture, steam, or condensation.
io SUMMARY OF THE INVENTION
According to an embodiment of the present invention, a container for housing food is provided, comprising paper having carbon additives for absorbing is moisture emanating from the food, wherein the carbon additives include one of charcoal, activated charcoal and activated carbon, wherein the paper is one of a containerboard, a linerboard, and a corrugated medium.
According to an aspect of the present invention, the container, preferably a corrugated boxboard, includes a plurality of sheets or linerboards, and the carbon zo additives are embedded in at least one of the plurality of sheets or linerboards, wherein the sheets of paper are made from a mixture of pulp, water, and the carbon additives.
Preferably, one, two, or three of the plurality of sheets is/are selectively embedded with the carbon additives. In one embodiment, one of the plurality of zs sheets is corrugated and another sheet is perforated.
r CA 02523772 2005-10-26 WO 2004/071871 ~PCT/US2004/003745 A method is also provided for absorbing moisture from food within a container comprising; embedding carbon additives within paper, and forming the container using the paper. Preferably, the carbon additives include charcoal, activated charcoal and activated carbon. The paper is one of a linerboard, a containerboard, and a corrugated medium. The paper includes a plurality of sheets, each sheet formed from a plurality of layers, and the carbon additives are embedded in at least one of the plurality of sheets. The sheets of paper are made from a mixture of pulp, water, and the carbon additives, wherein one, two or three of the plurality of sheets are embedded with the carbon additives.
io According to another embodiment of the invention, the plurality of sheets include an inner sheet and a corrugated sheet, the inner sheet having perforations and the corrugated sheet having the embedded carbon additives.
A process for manufacturing a container for storing food is also provided, comprising; forming layers of paper with embedded carbon additives by mixing pulp, is water, and the carbon additives; and forming a boxboard with a plurality of sheets of linerboards of the paper to house the food, wherein the step of forming a box includes using a plurality of layers of paper forming sheets or linerboards, including at least an inner linerboard and an outer linerboard. The process further including adding perforations to the inner linerboard and corrugating one of the plurality of sheets of zo paper.
WO 2004/071871 ~ ~ PCT/US2004/003745 . BRIEF DESCRIPTION OF THE DRAWINGS
Other uses and features of the present invention will become apparent from the following detailed description considered in connection with the accompanying drawings which disclose several embodiments of the present invention. It should be s understood, however, that the drawings are designed for the purpose of illustration only and not as an exhaustive list of its possible uses.
In the drawings wherein similar reference characters denote similar elements throughout the different embodiments:
Figure 1 shows a paper box in an opened configuration according to the io present invention;
Figure 2 shows a sideview of the paper box; and Figure 3 shows a cross-sectional view of a corrugated medium in a boxboard.
DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENTS
is The invention is directed to packaging product for housing goods. The packaging product is preferably made of paperboard, linerboard, or containerboard having charcoal, activated charcoal, or activated carbon as an additive for absorbing moisture, vapor, or condensation (hereinafter referred to as "Coalboard").
Charcoal, activated charcoal, carbon, or substances mostly comprised of carbon are used as zo additives because of their superior absorbent characteristics, partly due to their extremely vast surface area. The charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon is mixed with the wood fiber (more commonly known as pulp) in the blend chest. The refined pulp and water with the charcoal, activated charcoal, activated carbon, or substances mostly comprised of zs carbon added would then be sent on to the papermaking machine. In one embodiment, the linerboard with the embedded charcoal is disposed within a packaging container which is perforated on the interior side to enable steam vapor or humidity to enter into the corrugated medium. In another embodiment, a boxboard is made of containerboard with embedded charcoal, activated charcoal or substances s mostly comprised of carbon. With this packaging and method according to the present invention, the contents of the package can be protected against humidity, moisture, and steam.
Figure 1 shows a pizza box made of Coalboard according to the present invention. The steam vapor that is emitted from the pizza would be drawn through io the perforations and be absorbed by the charcoal. It is readily apparent that pizza is only one example of packaged food that would benefit from the vapor absorbing qualities of CoalBoard. Although this is one embodiment of the present invention, it is not the exclusive embodiment.
Referring to Figures 1 to 3 and according to a first embodiment of the present is invention, all three sheets of the boxboard 1, which comprises exterior linerboard 3, interior linerboard 5, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon. The interior linerboard 5 that faces the food product includes perforations 2 to enable the steam vapor generated from the hot food to enter into the corrugated medium 4.
ao According to a second embodiment of the invention, two sheets of the boxboard l, preferably interior linerboard 5, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon as an additive. The interior linerboard 5 facing the food product is preferably perforated 2 to enable the steam vapor generated from the hot food to enter into the Zs corrugation 4.
WO 2004/071871 ~PCT/US2004/003745 According to a third embodiment of the invention, the exterior linerboard 3, and corrugated medium 4 are embedded with charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor generated from the hot food to enter into the corrugation 4.
According to a fourth embodiment of the invention, one sheet of the boxboard 1, preferably the interior linerboard 5 is embedded with charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the io steam vapor generated from the hot food to enter into the corrugation 4.
According to a fifth embodiment of the invention, the exterior linerboard 3 is the only sheet having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor to enter into the is corrugation 4.
According to a sixth embodiment of the invention, the corrugated medium 4 is the sheet having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. The interior linerboard 5 facing the food product would be perforated 2 to enable the steam vapor generated from the hot food to enter zo into the corrugation 4.
According to a seventh embodiment of the invention, the boxboard is made from containerboard having charcoal, activated charcoal, carbon, or substances mostly comprised of carbon as an embedded additive. In this embodiment, the boxboard does not include a corrugated medium.
WO 2004/071871 ~ PCT/US2004/003745 As an alternative to mixing the additive in the pulp formulation process, there are a number of processes that can be used to introduce charcoal, activated charcoal, activated carbon, or substances mostly comprised of carbon into paper. One exemplary process is by blade coating, which is a method of coating paper and s paperboard using a flexible blade to control the amount of coating applied to the paper. Blade-coating can take place either on a papermaking machine or on an off machine coater. The paper may be coated on one side (C1S) or both sides (C2S), or between layers of paper as described in the above embodiments. Off machine coating refers to coating paper after it comes off the papermaking machine rather than while it io is still on the machine. Preferably, an off machine coater is used to add one or more layer of coating of the carbon material to the paper. Other known processes such as bath coating or surface siezing coating may also be used to mix or coat the carbon material onto the paper.
We did four side-by-side tests with identical pizza pies under the identical is conditions. We lined the perimeter of one of the boxes with pulverized charcoal, and left the other box as it would normally be used. After nine minutes cooking at degrees (industry standard), we placed both pies in their respective boxes and let them settle for 5, 7, 10, and 15 minutes. The ftrst three tests were conducted as stated above, the third test we perforated an additional box top and stapled it to the actual zo top with charcoal sandwiched in between. In each case, the pizza that was in the box with the charcoal was noticeably more crispy. The longer the period of time that we let the pies settle, the more pronounced the effect.
Having thus described the invention with the details and particularity required by the patent laws, it is noted that modifications and variation can be made by persons zs skilled in the art in light of the above teachings. It is therefore to be understood that changes may be made in the particular embodiments of the invention disclosed which are within the scope and spirit of the invention as defined by the appended claims.
Claims (22)
1. A method for absorbing moisture from food within a container comprising:
forming the container with a plurality of sheets of paper; and embedding carbon additives within one of the plurality of sheets of paper.
forming the container with a plurality of sheets of paper; and embedding carbon additives within one of the plurality of sheets of paper.
2. The method of claim 1, wherein the carbon additives include charcoal.
3. The method of claim 1, wherein the carbon additives include one of activated charcoal and activated carbon.
4. The method of claim 1, wherein the paper is one of a linerboard, a containerboard, and a corrugated boxboard.
5. The method of claim 1, wherein the at least one of the plurality of sheets of paper is made from a mixture of pulp, water, and the carbon additives.
6. The method of claim 1, wherein at least one of the plurality of sheets is corrugated.
7. The method of claim 1, wherein two of the plurality of sheets are embedded with the carbon additives.
8. The method of claim 1, wherein three of the plurality of sheets are embedded with the carbon additives.
9. The method of claim 1, wherein the plurality of sheets include an inner sheet and a corrugated sheet, the inner sheet having perforations and the corrugated sheet having the embedded carbon additives.
10. The method of claim 1, wherein the step of embedding carbon additives includes blade coating.
11. The method of claim 10, wherein the blade coating includes use of a flexible blade.
12. The method of claim 10, wherein the blade coating includes use of one of a paper making machine and an off-machine coater.
13. The method of claim 1, wherein the step of embedding carbon additives includes bath coating.
14. The method of claim 1, where the step of embedding carbon additives includes surface siezing coating.
15. A process for manufacturing a container for housing food comprising:
forming a sheet of paper with embedded carbon additives by mixing pulp, water, and the carbon additives; and forming a boxboard with a plurality of sheets of paper to house the food.
forming a sheet of paper with embedded carbon additives by mixing pulp, water, and the carbon additives; and forming a boxboard with a plurality of sheets of paper to house the food.
16. The process of claim 15, wherein the step of forming a box includes using a plurality of sheets of paper forming linerboards, including at least an inner linerboard and an outer linerboard.
17. The process of claim 15, further including adding perforations to the inner linerboard.
18. The process of claim 15, further including corrugating one of the plurality of sheets of paper.
19. The process of claim 15 wherein the step of forming a sheet of paper includes blade coating.
20. The process of claim 19, wherein the step of forming a sheet of paper includes use of one of a paper making machine and an off-machine coater.
21. The process of claim 15, wherein the step of forming a sheet of paper includes bath coating.
22. The process of claim 15, wherein the step of forming a sheet of paper includes surface siezing coating.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44567303P | 2003-02-07 | 2003-02-07 | |
| US60/445,673 | 2003-02-07 | ||
| PCT/US2004/003745 WO2004071871A2 (en) | 2003-02-07 | 2004-02-09 | Packaging device and method for absorbing moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2523772A1 true CA2523772A1 (en) | 2004-08-26 |
Family
ID=32869407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002523772A Abandoned CA2523772A1 (en) | 2003-02-07 | 2004-02-09 | Packaging device and method for absorbing moisture |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1601573A4 (en) |
| JP (1) | JP2006517170A (en) |
| CN (1) | CN1756489A (en) |
| AU (1) | AU2004212474A1 (en) |
| BR (1) | BRPI0407291A (en) |
| CA (1) | CA2523772A1 (en) |
| NO (1) | NO20054162L (en) |
| WO (1) | WO2004071871A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ594363A (en) * | 2011-08-01 | 2012-12-21 | Corcel Ip Ltd | Method and machine for perforating corrugated board as part of a continuous cold forming process |
| WO2014200200A1 (en) * | 2013-06-11 | 2014-12-18 | Lee Bo Rum | Dehumidifier |
| GR1008953B (en) * | 2015-06-19 | 2017-02-22 | Πετρος Πλατωνα Καβαλακης | Paper box for the transport of freshly-fried potatoes |
| CN111727157B (en) * | 2018-02-20 | 2022-09-23 | 凯文·M·奥尼尔 | Lightweight transport, storage and delivery system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593146A (en) * | 1945-10-19 | 1952-04-15 | Sutcliffe Speakman & Company L | Laminated paper containing activated carbon |
| US3091550A (en) * | 1958-09-24 | 1963-05-28 | Union Carbide Corp | Adsorbent compositions and method of coating therewith |
| JPS593205B2 (en) * | 1976-03-23 | 1984-01-23 | 東洋紡績株式会社 | Adsorption device |
| US4606790A (en) * | 1984-07-06 | 1986-08-19 | Container Corporation Of America | Conductive paper and method |
| JPS63168342A (en) * | 1986-12-29 | 1988-07-12 | 井上 利明 | Manufacture of packaging material for food |
| US5153061A (en) * | 1991-01-29 | 1992-10-06 | Westvaco Corporation | Barrier coating to reduce migration of contaminants from paperboard |
| US5540916A (en) * | 1993-12-15 | 1996-07-30 | Westvaco Corporation | Odor sorbing packaging |
| US20030129332A1 (en) * | 2002-01-07 | 2003-07-10 | O'neill Kevin J. | Packaging device and method for absorbing moisture |
-
2004
- 2004-02-09 BR BR0407291-0A patent/BRPI0407291A/en not_active IP Right Cessation
- 2004-02-09 WO PCT/US2004/003745 patent/WO2004071871A2/en active Application Filing
- 2004-02-09 EP EP04709445A patent/EP1601573A4/en not_active Withdrawn
- 2004-02-09 CN CNA2004800057771A patent/CN1756489A/en active Pending
- 2004-02-09 AU AU2004212474A patent/AU2004212474A1/en not_active Abandoned
- 2004-02-09 JP JP2006503433A patent/JP2006517170A/en active Pending
- 2004-02-09 CA CA002523772A patent/CA2523772A1/en not_active Abandoned
-
2005
- 2005-09-07 NO NO20054162A patent/NO20054162L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO20054162D0 (en) | 2005-09-07 |
| CN1756489A (en) | 2006-04-05 |
| EP1601573A4 (en) | 2007-08-01 |
| BRPI0407291A (en) | 2006-01-31 |
| WO2004071871A2 (en) | 2004-08-26 |
| AU2004212474A1 (en) | 2004-08-26 |
| WO2004071871A3 (en) | 2005-04-14 |
| NO20054162L (en) | 2005-10-27 |
| EP1601573A2 (en) | 2005-12-07 |
| JP2006517170A (en) | 2006-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20130211 |