Articles and methods for dispensing metal ions into laundry systems

A technology of metal ions and products, applied in chemical instruments and methods, botanical equipment and methods, detergent materials, etc., can solve the problem of antibacterial efficacy decline and other issues

Pending Publication Date: 2019-03-01
APPLIED SILVER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the antimicrobial efficacy of metal-treated fabrics decreases with each wash

Method used

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  • Articles and methods for dispensing metal ions into laundry systems
  • Articles and methods for dispensing metal ions into laundry systems
  • Articles and methods for dispensing metal ions into laundry systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1: Laundry Pods in the Dryer

[0051] 47 mL of 317 ppm silver ions were added to a polyurethane sponge packaged in a plastic hollow housing having a diameter of 3.5 inches and having 31 evenly spaced cells ranging in diameter from 3 / 32 inch to 3 / 16 inch. circular opening. Articles were contained in a wet load of textiles (dry weight 6.7 lb) in a standard household dryer at "heavy duty", "high temperature" (120-155°F) and "high temperature". "More dry" setting for a 55 minute tumble dry cycle. Three independent runs resulted in silver uptake by textiles of 1.2, 6.2 and 3.7 mg / kg, with an average silver uptake of 3.7 mg / kg. Articles were also contained in dry-loaded textiles, subjected to a tumble drying cycle using the same parameters as wet-loaded textiles. Three independent runs resulted in silver uptake by textiles of 0.9, 1.0 and 4.8 mg / kg, with an average silver uptake of 2.2 mg / kg.

Embodiment 2

[0052] Example 2: Laundry balls in a washing machine

[0053]55 mL of 317 ppm silver ions were added to a mixture of cotton textiles and polyester textiles packaged in plastic hollow housings with a diameter of 3.5 inches and 31 diameters ranging from 3 / 32 inch to 3 / 16 Evenly spaced circular openings within inches. Articles were contained in textiles loaded at a dry weight of 6.7lb in a 55-minute wash cycle in a standard domestic washing machine with 21 gallons of water at "normal" and "cold" temperatures, which consisted of the following steps: add water for 10.5 minutes, Stir for 14.5 minutes, drain / spin for 6 minutes, add water for 10.5 minutes, stir for 5.5 minutes, and drain / spin for 8 minutes. This cycle resulted in a textile uptake of silver of 1.33 mg / kg.

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Abstract

Articles and methods for treating textiles and other materials with an antimicrobial compound during laundry and / or drying cycles. The articles include a porous substrate and a core composition that is releasably associated with the substrate and that includes a metal ion having antimicrobial activity. Methods include the use of the articles in laundry and / or drying cycles to provide antimicrobialtreatment of the textiles and materials.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Patent Application No. 62 / 335,510, filed May 12, 2016, and U.S. Provisional Patent Application No. 62 / 415,222, filed October 31, 2016, which are incorporated by reference Its entirety is hereby incorporated. field of invention [0003] The present disclosure relates to antimicrobial treatment of textiles and other materials. More specifically, the present disclosure relates to articles and methods of imparting metal ions for antimicrobial treatment of textiles and materials in the wash and / or dry cycles of a washing system. Background technique [0004] Bacterial contamination of fabric or linen used in clothing, sheets, towels, pillows, blankets, and similar materials can lead to textile staining, unpleasant odors, and the spread of disease. Previous methods of treating fabrics have involved making fabrics with materials containing or coating metals...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01N59/00A61L2/00A61L2/16A61L2/238
CPCA01N59/16A01N59/20A61L2/00A61L2/16A61L2/238D06M11/00C11D3/02C11D3/48C11D17/046D06M2101/06D06M2101/32D06M16/00A01N25/10
InventorR.比克W.莫里斯J.C.科普兰R.巴布科克
OwnerAPPLIED SILVER