Absorbent food pad
View Patent ↗An absorbent food pad having an active agent positioned selectively in a pad architecture to provide superior performance.
1. An absorbent food pad comprising:
a top layer made of a polyethylene film with perforations therethrough;
a bottom layer made of cellulose tissue;
a laminate having one or more plies of a cellulosic material and an active agent distributed uniformly in each of the one or more plies in the laminate, wherein each of the one or more plies forms a reservoir of the active agent; and
at least two tissue layers, wherein at least a first of the at least two tissue layers is positioned between the top layer and the laminate, and wherein at least a second of the tissue layers is positioned between the laminate and the bottom layer, and
wherein the laminate is positioned between the first and second of the at least two tissue layers to form a layered structure that is positioned between the top and bottom layers, the laminate having the reservoirs therein provides an extended release of the active agent over time upon activation, and wherein the first and second of the at least two tissue layers provide extended absorbency of any liquid purge in contact therewith.
2. The absorbent food pad of claim 1 , wherein the laminate has at least two plies.
3. The absorbent food pad of claim 1 , wherein the at least two tissue layers are four layers.
4. The absorbent food pad of claim 1 , wherein two of the four tissue layers are positioned between the top layer and the laminate, and wherein the other two of the four tissue layers are positioned between the laminate and the bottom layer.
5. The absorbent food pad of claim 1 , wherein the at least two tissue layers are six layers.
6. The absorbent food pad of claim 1 , wherein three of the six tissue layers are positioned between the top layer and the laminate, and wherein the other three of the six tissue layers are positioned between the laminate and the bottom layer.
7. The absorbent food pad of claim 1 , wherein the laminate has two plies of cellulose tissue.
8. The absorbent food pad of claim 7 , wherein the two plies of laminate are directly adjacent to each other.
9. The absorbent food pad of claim 1 , wherein the laminate is made of a mixture of cellulosic material and CO 2 -generation system that is a mixture of citric acid and sodium bicarbonate.
10. The absorbent food pad of claim 9 , wherein the CO 2 -generation system is activated with water or other liquid to generate CO 2 .
11. The absorbent food pad of claim 1 , wherein the cellulose tissue is a coffee filter tissue.
12. The absorbent food pad of claim 1 , wherein the top layer is a film that is polyethylene, polypropylene, polyester, or any combinations thereof.
13. The absorbent food pad of claim 1 , wherein the bottom layer is made of coffee filter tissue.
14. The absorbent food pad of claim 1 , wherein the top layer and the bottom layer are sealed at an edge around the periphery of absorbent pad to completely enclose the at least two tissue layers.
15. The absorbent food pad of claim 1 , wherein the active agent is selected from the group consisting of components of a CO 2 -generation system, oxygen scavenging system, ethylene inhibitor, an antimicrobial, and any combinations thereof.
16. An absorbent food pad comprising:
a top layer made of a polyethylene film with perforations therethrough;
a bottom layer made of a polyethylene film having perforations therethrough;
a laminate having two plies, each ply comprising a cellulosic material and an active agent distributed uniformly therein, wherein each ply forms a reservoir of the active agent; and
five tissue layers positioned between the top layer and the bottom layer, wherein three tissue layers are positioned between the laminate and top layer, and the remaining two tissue layers are positioned between the laminate and the bottom layer, wherein the laminate and the five tissue layers form a layered structure, and wherein the absorbent food pad provides an extended release of the active agent over time upon activation.
17. The absorbent food pad of claim 16 , wherein the top layer and the bottom layer are sealed at their edges around the periphery of the absorbent food pad to completely enclose the five tissue layers and the laminate.
18. An absorbent food pad comprising:
a top layer made of polyethylene film with perforations therethrough;
a bottom layer made of coffee filter tissue;
a laminate having one ply comprising a cellulosic material and an active agent distributed uniformly in the ply, wherein the ply forms a reservoir of the active agent; and
five tissue layers positioned between the top layer and the bottom layer, wherein three tissue layers are positioned between the laminate and top layer, and the remaining two tissue layers are positioned between the laminate and the bottom layer, wherein the laminate and the five tissue layers form a layered structure, and
wherein the absorbent food pad provides an extended release of the active agent over time upon activation.
19. The absorbent food pad of claim 18 , wherein the top layer and the bottom layer are sealed at their edges around the periphery of the absorbent food pad to completely enclose the five tissue layers and the laminate.