US 12,227,682 B2
Paper wrapping materials and method for a highly compressed product
Joseph F. Van De Hey, Kaukauna, WI (US); Jeffery J. VanHandel, Freedom, WI (US); Alex M. Zirbel, Kaukauna, WI (US); and Alex N. Kuffel, Appleton, WI (US)
Assigned to C3 Corporation, Appleton, WI (US)
Appl. No. 18/028,604
Filed by C3 Corporation, Appleton, WI (US)
PCT Filed Apr. 23, 2021, PCT No. PCT/US2021/028865
§ 371(c)(1), (2) Date Mar. 27, 2023,
PCT Pub. No. WO2022/066219, PCT Pub. Date Mar. 31, 2022.
Claims priority of provisional application 63/084,548, filed on Sep. 28, 2020.
Prior Publication US 2023/0303889 A1, Sep. 28, 2023
Int. Cl. B65D 85/64 (2006.01); B31F 5/06 (2006.01); B65B 11/04 (2006.01); B65B 63/02 (2006.01); B65D 65/14 (2006.01); B65D 85/07 (2017.01); C09J 5/06 (2006.01); C09J 7/21 (2018.01); C09J 7/35 (2018.01); D21H 11/04 (2006.01); D21H 27/10 (2006.01)
CPC C09J 7/21 (2018.01) [B31F 5/06 (2013.01); B65B 11/04 (2013.01); B65B 63/024 (2013.01); B65D 65/14 (2013.01); B65D 85/64 (2013.01); C09J 5/06 (2013.01); C09J 7/35 (2018.01); D21H 11/04 (2013.01); D21H 27/10 (2013.01); B65D 2585/647 (2013.01); C09J 2301/204 (2020.08); C09J 2301/304 (2020.08); C09J 2400/283 (2013.01)] 31 Claims
OG exemplary drawing
 
1. Paper wrapping materials to securely wrap a rolled-up High Expansion Force product comprising:
a kraft paper layer encircling a circumference of the product, a leading end of the kraft paper layer adhered to a tail end of the product by a first hotmelt adhesive located between facing surfaces of the leading end of the kraft paper layer and the tail end of the product;
a tail end of the kraft paper layer adhered to a middle portion of the kraft paper layer with a second hotmelt adhesive located between facing surfaces of the tail end of the kraft paper layer and the middle portion of the kraft paper layer to thereby secure the kraft paper layer encircling the circumference of the product;
wherein the kraft paper layer has: (i) a Basis Weight from about 68 pounds per 3000 feet squared to about 84 pounds per 3000 feet squared, (ii) a Tensile Strength (MD) from about 55 pounds per inch to about 70 pounds per inch, (iii) a Stretch (MD) from about 7% to about 11%, and (iv) a fiber content that comprises at least 70% virgin fibers; and,
wherein the second hotmelt adhesive comprises between about 15% and about 25% thermoplastic elastomer.