Poultry box
A repulpable moisture resistant poultry box having a composite structure with a fluted medium, a top backing board secured to one side of the fluted medium and a bottom backing board secured to the other side of the fluted medium. The backing boards and the fluted medium are impregnated with a hydrogenated triglyceride. The backing boards each have an outer surface coated with PET to provide moisture resistance repulpable and recyclable box.
1. A process for making a repulpable corrugated cardboard sheet in an inline corrugator comprising the steps of:
a). impregnating a fluted paper medium with a hydrogenated triglyceride;
b). supplying a first web of paper impregnated with a hydrogenated triglyceride to one side of a said fluted paper medium and securing them together;
c). supplying a second web of paper impregnated with a hydrogenated triglyceride to an opposite side of said fluted paper medium from that of said first web of paper and securing them together to form a corrugated cardboard structure; and
d). coating at least said one outside paper surface of said corrugated structure with a moisture resistant plastic.
2. A process as claimed in claim 1 wherein said hydrogenated triglyceride is tallow and said webs of paper are impregnated with tallow at about 2.5 lbs./MSF.
3. A process as claimed in claim 1 wherein said fluted paper medium is impregnated with tallow at about 3.5 lbs./MSF.
4. A process as claimed in claim 1 wherein said biodegradable thermoplastic polymer coating is applied to said webs of paper at about 1 to about 2 lbs./MSF.
5. A process as claimed in claim 1 wherein said coating of moisture repellant is a thermoplastic polymer resin is placed on each side of said corrugated structure.
6. A process as claimed in claim 5 wherein said coating of moisture repellant plastic is applied to said corrugated structure on its outside surfaces at about 1 to about 2 lbs/MSF.
7. A process as claimed in claim 1 wherein said web of paper is Kraft paper.
8. A process as claimed in claim 1 wherein both outside paper surfaces of said corrugated structure are coated with a moisture resistant plastic.
9. A process as claimed in claim 1 including an additional step, step d). curing said coated impregnated cardboard with heat.
10. A process as claimed in claim 1 wherein said hydrogenated triglyceride is tallow.
11. A process as claimed in claim 1 wherein said moisture resistant plastic is biodegradable emulsified polyester.
12. A process as claimed in claim 1 wherein said moisture resistant plastic is biodegradable polyester.
13. A process as claimed in claim 1 wherein said webs of paper are secured to said fluted paper medium with adhesive.