US 12,324,864 B2
Sanitizing wipe with metal detectable printed indicia
Robert Martin, Glenview, IL (US); and Paul Richard Jelonek, Geneva, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Jul. 9, 2020, as Appl. No. 16/924,268.
Claims priority of provisional application 62/873,074, filed on Jul. 11, 2019.
Prior Publication US 2021/0008238 A1, Jan. 14, 2021
Int. Cl. A61L 2/18 (2006.01); A61L 2/28 (2006.01); B65B 5/06 (2006.01); B65B 55/22 (2006.01); B65B 57/18 (2006.01); C09D 11/023 (2014.01); C09D 11/106 (2014.01)
CPC A61L 2/18 (2013.01) [A61L 2/28 (2013.01); C09D 11/023 (2013.01); C09D 11/106 (2013.01); A61L 2202/15 (2013.01); A61L 2202/20 (2013.01); B65B 5/06 (2013.01); B65B 55/22 (2013.01); B65B 57/18 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An article comprising:
a substrate;
an aqueous sanitizing solution absorbed into said substrate; and
indicia printed on only a portion of said substrate, said indicia printed with an ink that includes detectable particulate loadings of iron oxide, iron nitrides, or forms of ferritic or martensitic stainless steel in a cured binder, the detectable particulate loadings present in an amount detectable in a single ply of said substrate by an in-line manufacturing production magnetic induction coil metal detector, the detectable particulate loadings being from 1 to 23 total weight percent of said substrate;
wherein the binder is an acrylic, a polyurethane acrylate, a styrene acrylic copolymer, a butylated melamine formaldehyde resin, or a combination thereof that encapsulates the detectable particulate loadings to inhibit interaction between the indicia and said aqueous sanitizing solution, rendering said ink compatible with storage exposure to said aqueous sanitizing solution absorbed into said substrate.