US-12624319-B2 - Water disintegrable, foam producing article for use as a toilet bowl cleaner

Abstract

Water disintegrable, foam producing articles comprise a soluble fibrous structure encasing a particulate effervescent cleaning composition comprising an effervescent agent, a particulate foaming surfactant, an effervescent activator, optionally an effervescent protection agent, and optionally an active agent. Methods of using the articles to clean surfaces are also provided.

Inventors

• Mark Robert Sivik
• Alan Edward Sherry
• Deepak AHIRWAL
• Frank William DeNome
• Zaiyou Liu
• Kerry Andrew Vetter
• Yousef Georges Aouad
• Min Mao

Assignees

• THE PROCTER & GAMBLE COMPANY

Dates

Publication Date

20260512

Application Date

20191213

Claims (6)

1. 1 . A method of cleaning soil from a toilet bowl containing water, the method comprising the steps of: 1) adding an active agent-containing a water disintegrable, particle containing foam producing pouch article comprising: i) a soluble fibrous structure comprising one or more filaments, wherein the soluble fibrous structure encases; ii) a particulate effervescent cleaning composition, wherein the particulate effervescent foaming composition comprises: a) a particulate foaming surfactant selected from the group consisting of linear C11-C12 alkylbenzene sulfonate, sodium C12-C16 alkyl methyl taurate, sodium alkyl sulfate, C12-C18 alpha olefin sulfonate, disodium lauroyl or cocoyl glutamate, sulfonated C12-C16 alky polyglucoside, lauryl sulfosuccinate, C12-C16 dimethyl amine oxide, lauramido propyl betaine, cocamido propyl betaine, lauramido propyl hydroxyl sultaine, cocamido propyl hydroxyl sultaine, and mixtures thereof; b) an effervescent agent selected from the group consisting of sodium bicarbonate, sodium carbonate, and mixtures thereof c) an effervescent activator selected from the group consisting of citric acid, tartaric acid, sulfamic acid, sulfuric acid on silica carrier, and mixtures thereof; d) an effervescent protecting agent selected from the group consisting of silica, zeolite, and mixtures thereof; and e) an active agent selected from the group consisting of perfumes, soil release polymers, enzymes, bacterial spores, chelants, antimicrobial compounds, bleaches, and mixtures thereof; to the water within the toilet bowl; wherein the fibrous structure exhibits a basis weight of greater than 10 g/m 2 to about 5000 g/m 2 ; wherein the water disintegrable, particle containing foam producing pouch article exhibits a dry density of less than water; 2) allowing the water to rapidly disintegrate the article to produce a particle containing foam while the article floats on the water within the toilet bowl; 3) allowing particles of the effervescent foaming composition to deposit on walls of the toilet bowl surface above the water line of the toilet bowl; wherein A) the particle containing foam producing pouch article exhibits an undissolved particle residue height of at least 1 cm, as measured by the foam height method described herein; B) the undissolved particle residue height of at least 1 cm persists for about 1 hour; and C) the particle containing foam particulate residue deposited on the walls of the toilet bowl comprises particles of unreacted or partially reacted particulate foaming surfactant previously suspended in the foam.
2. 2 . The method of claim 1 wherein the active agent comprises a perfume comprising at least 30% by weight of at least one perfume ingredient having a boiling point greater than about 250° C. and a calculated C log P value greater than about 3.0.
3. 3 . The method of claim 1 wherein the active agent comprises a bleach selected from the group consisting of potassium monopersulfate, 6-phthalimido peroxyhexanoic acid, sodium percarbonate, and mixtures thereof.
4. 4 . The method of claim 1 , wherein the soluble fibrous structure forms a pouch which encases the particulate effervescent cleaning composition.
5. 5 . The method of claim 1 , wherein the particulate effervescent cleaning composition is commingled with the soluble fibrous structure to form a coform structure.
6. 6 . The method of claim 1 , wherein the foam comprises particles of particulate surfactant suspended in the foam.

Description

TECHNICAL FIELD The present invention relates to a water disintegrable, foam producing article comprising a soluble fibrous structure encasing a particulate effervescent cleaning composition comprising an effervescent agent, a particulate foaming surfactant, an effervescent activator, optionally an effervescent protecting agent, and optionally an active agent. BACKGROUND OF THE INVENTION Compositions for cleaning household surfaces, such as hard surfaces and toilets, are well known in the art. Many such compositions are liquid compositions contained in relatively large bottles which must be dispensed onto the surface being cleaned or dispensed into a vessel, such as a bucket, and diluted with water to form a treatment composition which is then applied to the surface. This can be inconvenient for the consumer and the liquid composition can accumulate on the dispensing orifice of the bottle which can be messy, resulting in the consumer having to wipe the dispensing orifice to clean away residual liquid composition. Also, such relatively large bottles can be inconvenient to carry around the home and store in household cabinets or on shelves. In addition, many consumers today elect to purchase cleaning products online and have such products shipped directly to the consumer's home. Such liquid cleaning compositions may have a tendency to leak from their bottles, creating a mess within the shipping containers used to ship the product to the consumer's home. Liquid cleaning compositions also tend to comprise a relatively large amount of water which increases the shipping weight and volume of the product being shipped thereby increasing shipping costs. Consumers of compositions for cleaning household surfaces typically desire such composition to provide foam to signal the cleaning action of the composition. Such liquid compositions, including those which comprise a surfactant capable of generating foam, usually require mechanical manipulation, such as agitating the composition against the treated surface with a scrub brush, in order to generate foam on the treated surface. It is therefore desired to provide consumers with a composition for cleaning household surfaces that is more convenient to use and store, can be more efficiently shipped directly to a consumer's home or a commercial business establishment. It is also desired to have a toilet bowl composition that does not create a mess, and that can use foam generated from the composition to clean toilet bowl surfaces, to prevent and/or delay re-soiling and to provide freshness benefits, including long-lasting freshness, to areas in and surrounding the toilet. SUMMARY OF THE INVENTION The present invention encompasses a water disintegrable, foam producing article comprising a soluble fibrous structure encasing a particulate effervescent cleaning composition comprising an effervescent agent, a particulate foaming surfactant, an effervescent activator, and optionally an effervescent protection agent. The present invention further relates to methods of making an effervescent foaming composition, methods of cleaning a surface, methods preventing surface re-soiling and methods of providing freshness, including long lasting freshness, using the article of the present invention. One example of the present invention is a water disintegrable, foam producing article comprising: a soluble fibrous structure, for example a soluble fibrous web, encasing a particulate effervescent cleaning composition, wherein the particulate effervescent foaming composition comprises:a) a particulate foaming surfactant, for example wherein the particulate foaming surfactant is selected from the group consisting of linear C11-C12 alkylbenzene sulfonate, sodium C12-C16 alkyl methyl taurate, sodium alkyl sulfate, C12-C18 alpha olefin sulfonate, disodium lauroyl or cocoyl glutamate, sulfonated C12-C16 alkyl polyglycosides (APG), lauryl sulfosuccinate, C12-C16 dimethyl amine oxide, lauramido propyl betaine, cocamido propyl betaine, lauramido propyl hydroxyl sultaine, cocamido propyl hydroxyl sultaine, and mixtures thereof;b) an effervescent agent, for example wherein the effervescent agent is selected from the group consisting of sodium bicarbonate, sodium carbonate, and mixtures thereof;c) an effervescent activator, for example wherein the effervescent activator is selected from the group consisting of citric acid, tartaric acid, sulfamic acid, sulfuric acid on silica carrier, and mixtures thereof;d) optionally, an effervescent protecting agent, for example wherein the effervescent protecting agent is selected from the group consisting of silica, zeolite, and mixtures thereof; ande) optionally, an active agent, for example wherein the active agent is selected from the group consisting of perfumes, soil release polymers, enzymes, bacterial spores, chelants, antimicrobial compounds, bleaches, and mixtures thereof. The water disintegrable, foam producing article may comprise: a) from about 15% to abo