Sanitizing wipe with metal detectable printed indicia

Patent metadata

Field	Value
Publication number	US-12324864-B2
Application number	US-202016924268-A
Country	US
Kind code	B2
Filing date	Jul 9, 2020
Priority date	Jul 11, 2019
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

An article is provided having a substrate with an indicia printed on the substrate, where the indicia is printed with an ink that is detectable by in-line manufacturing production X-ray, metal, or magnetic detectors. A package for multiple such articles is also provided. A process for detecting a sanitizable substrate wipe with magnetic, metal, or X-ray detection equipment in a production setting is also provided. With process implementation article loss in a product can be detected thereby reducing precautionary product discard.

First claim

The invention claimed is:

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.

2. The article of claim 1 wherein said ink additionally includes at least one of aluminum, copper, barium sulfate, or a combination of any of the aforementioned.

3. The article of claim 1 wherein said substrate is formed as a nonwoven material that is spun-laced, melt blown, spunbond, or a composite of two or more of these fiber formations.

4. The article of claim 1 wherein said substrate is comprised of polymer fiber that is one of polypropylene, polyethylene, polybutene, polyisobutylene, a polyamide, a polyacrylate, a polystyrene, a polyurethane, an acetal resin, a polyethylene vinyl alcohol; a polyester, a polyphenylene sulfide, a thermoplastic elastomers, a polyacrylonitrile; a cellulose, a polyaramid, or a block copolymer containing at least one of the aforementioned.

5. A package comprising:
a plurality of the article of claim 1 ; and
a resealable container that when sealed inhibits said aqueous sanitizing solution from evaporating from said container.

6. The package of claim 5 wherein said container is detectable by said in-line manufacturing production magnetic induction coil metal detector.

7. A process of detecting a fabric article comprising:
forming an article of claim 1 ;
passing the article through an in-line X-ray detector, metal, or a magnetic detector in a manufacturing facility; and
collecting a signal from said X-ray detector, metal, or said magnetic detector indicative of the presence of the article.

8. The process of detecting the article of claim 7 wherein said article is a wipe.

9. The process of detecting the article of claim 7 wherein said X-ray detector, metal detector, or said magnetic detector is associated with a production line.

10. The process of detecting the article of claim 9 further comprising stopping said production line in response to the signal.

11. The process of detecting the article of claim 10 further comprising shunting product as rejected in response to the signal from said production line.

12. The article of claim 1 wherein said aqueous sanitizing solution includes quaternary ammonium compounds, triclosan, triclocarban, hypochlorite, quat-alcohols, chloroxylenol, or a combination thereof.

13. The article of claim 1 wherein the detectable particulate loadings comprise the ferritic or martensitic stainless steel.

14. The article of claim 1 wherein the detectable particulate loadings are present from 3 to 23 total weight percent of said substrate.

Assignees

• Illinois Tool Works

Inventors

• Martin Robert
• Jelonek Paul Richard

Classifications

• A61L2103/00

  Materials or objects being the target of disinfection or sterilisation · CPC title

• B65B57/18

  causing operation of audible or visible alarm signals · CPC title

• B65B55/22

  Immersing contents in protective liquids · CPC title

• B65B5/06

  Packaging groups of articles, the groups being treated as single articles · CPC title

• C09D11/106

  containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title