Associating a scent with a laundry article

Patent metadata

Field	Value
Publication number	US-9816056-B2
Application number	US-201514886756-A
Country	US
Kind code	B2
Filing date	Oct 19, 2015
Priority date	Oct 19, 2015
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

A process for associating a scent with a laundry article including the steps of: providing a fluid pervious substrate carrying a perfume on, within, or at least partially enclosed by the substrate; placing the substrate in proximity to a partially saturated laundry article within a container or pile; transferring the laundry article and the substrate from the container or the pile into a washing machine; and washing the laundry article together with the substrate.

First claim

What is claimed is:

1. A process for associating a scent with a laundry article comprising the steps of:
providing a fluid pervious substrate carrying a perfume on, within, or at least partially enclosed by said substrate;
placing said substrate in proximity to a partially saturated laundry article within a container or pile;
transferring said laundry article and said substrate from said container or said pile into a washing machine; and
washing said laundry article together with said substrate;
wherein said substrate is water insoluble;
wherein said substrate is a fibrous web;
wherein said perfume comprises unencapsulated perfume;
wherein said substrate forms at least part of a pouch enclosing a chamber;
wherein said chamber contains a plurality of water soluble particles carrying said perfume;
wherein said pouch comprises a bond that at least partially defines said chamber;
wherein said pouch comprises an aperture passing through said pouch;
wherein said aperture is sized and dimensioned to fit onto a clothing hanger;
wherein said bond is positioned between said aperture and said chamber; and
wherein said pouch comprises a tab extending from said pouch and said aperture passes through said tab.

2. The process according to claim 1 , wherein said substrate is a nonwoven having a basis weight between about 1 gsm and about 1000 gsm.

3. The process according to claim 1 , wherein said substrate is packaged within a hermetically sealed sleeve, said process further comprising a step of opening said sleeve and removing said substrate from said sleeve.

4. The process according to claim 1 , wherein said perfume comprises encapsulated perfume.

5. The process according to claim 1 , wherein said particles comprise a carrier selected from the group consisting of water soluble organic alkali metal salt, water soluble inorganic alkaline earth metal salt, water soluble organic alkaline earth metal salt, water soluble carbohydrate, water soluble silicate, water soluble urea, starch, clay, water insoluble silicate, citric acid, carboxymethyl cellulose, fatty acid, fatty alcohol, glyceryl diester of hydrogenated tallow, glycerol, polyvinyl alcohol, polyethylene glycol, and combinations thereof.

6. The process according to claim 5 , wherein said carrier is polyethylene glycol having a weight average molecular weight between from about 2000 to about 13000.

7. The process according to claim 1 , further comprising the step of dispensing a detergent composition into said washing machine.

8. The process according to claim 1 , wherein said substrate is at least partially coated with a carrier comprising said perfume.

9. The process according to claim 1 , wherein said perfume is loaded on a carrier selected from the group consisting of water soluble organic alkali metal salt, water soluble inorganic alkaline earth metal salt, water soluble organic alkaline earth metal salt, water soluble carbohydrate, water soluble silicate, water soluble urea, starch, clay, water insoluble silicate, citric acid carboxymethyl cellulose, fatty acid, fatty alcohol, glyceryl diester of hydrogenated tallow, glycerol, polyethylene glycol, and combinations thereof.

10. The process according to claim 1 , wherein said substrate is placed in proximity to said partially saturated laundry article within a container, wherein said container is selected from the group consisting of a laundry hamper, a laundry basket, a laundry bag, a duffle bag, a gym bag, a suitcase, a back pack, and a drawer.

11. The process according to claim 1 , wherein said substrate has an apparent opening size according to ASTM D4751-12 smaller than about 1000 μm.

12. The process according to claim 1 , wherein said substrate forms at least part of a pouch enclosing a chamber, wherein said chamber contains a plurality of water soluble particles carrying said perfume, wherein said plurality of particles has a mass between about 1 mg and about 100 g.

13. The process according to claim 1 , wherein said perfume comprises a perfume raw material having a saturation vapor pressure greater than about 0.01 torr.

14. The process according to claim 1 , wherein said perfume comprises a perfume raw material having a logP greater than about 3.

Assignees

• Procter & Gamble

Inventors

• Frankenbach Gayle Marie
• O'Connor Helen Frances
• Sanders Michael David
• Hollingshead Judith Ann
• Bailey David Anthony

Classifications

• C11D17/06

  Powder; Flakes; Free-flowing mixtures; Sheets · CPC title

• C11D3/50 Primary

  Perfumes · CPC title

• C11D3/505

  encapsulated or adsorbed on a carrier, e.g. zeolite or clay · CPC title

• C11D1/00

  Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent · CPC title

• C11D17/04 Primary

  combined with or containing other objects · CPC title