Dissolvable Sheet Containing A Cleaning Active And Method Of Making Same

Patent metadata

Field	Value
Publication number	US-2021261885-A1
Application number	US-202117184028-A
Country	US
Kind code	A1
Filing date	Feb 24, 2021
Priority date	Feb 24, 2020
Publication date	Aug 26, 2021
Grant date	—

Abstract

A dissolvable sheet having a water-soluble substrate, and one or more cleaning actives disposed uniformly throughout the water-soluble substrate. The water-soluble substrate is formed from a first substrate builder comprising polyvinyl alcohol, a second substrate builder, such as starch, and sodium laurylglucosides hydroxypropylsulfonate, and is sized and shaped to form a sheet, and hold a premeasured amount of the cleaning active. The substrate dissolves when contacted with a sufficient amount of water, thereby releasing the cleaning active into the water, which also dissolves in the water. A method of making the dissolvable sheet is also disclosed.

First claim

We claim:

1 . A dissolvable sheet comprising:
a first substrate builder comprising polyvinyl alcohol (PVA); a second substrate builder; and sodium laurylglucosides hydroxypropylsutfonate; wherein said dissolvable sheet is free of sulfates and ethoxylates.

2 . The dissolvable sheet as claimed in claim 1 , wherein said first substrate builder PVA B-05, PVA B-17, or a combination thereof.

3 . The dissolvable sheet as claimed in claim 1 , wherein said second substrate builder comprises a starch, sodium bicarbonate, sodium carbonate, a cellulose, or a stearate.

4 . The dissolvable sheet as claimed in claim 1 , further comprising glycerin or propanediol.

5 . The dissolvable sheet as claimed in claim 1 , further comprising one or more of a first cleaning active, a second cleaning active, a third cleaning active, and a fourth cleaning active.

6 . The dissolvable sheet as claimed in claim 5 , wherein said first cleaning active comprises a nonionic surfactant, or an anionic surfactant.

7 . The dissolvable sheet as claimed in claim 6 , wherein said first cleaning active comprises a natural saponified soap, a glucoside, a sulfonic acid salt, a sulfonate, a phosphoric acid ester, a carboxylic acid salt, a potassium cocoate, a saponified fatty acid soap, alkyl polyglucoside (C10-16), sodium lauryl glucose carboxylate, a short/medium/long chain glucoside, or alpha olefin sulfonate.

8 . The dissolvable sheet as claimed in claim 5 , wherein said second cleaning active comprises a cationic surfactant, a zwitterionic surfactant, or an anionic surfactant.

9 . The dissolvable sheet as claimed in claim 8 , wherein said second cleaning active comprises a natural saponified soap, a glucoside, a sulfonic acid salt, a sulfonate, a phosphoric acid ester, a carboxylic acid salt, an amphoacetate, a sultaine, a betaine, cocoamidopropyl betaine, potassium cocoate, cocamidopropyl hydroxysultaine, or sodium lauroamphoacetate.

10 . The dissolvable sheet as claimed in claim 5 , wherein said third cleaning active comprises an amphoteric surfactant, or a nonionic surfactant.

11 . The dissolvable sheet as claimed in claim 10 , wherein said third cleaning active comprises an amine oxide, a glucoside, a sulfonic acid salt, a sulfonate, a phosphoric acid ester, a carboxylic acid salt, cetyl betaine, lauramine oxide, sodium lauriminodipropionate, alkyl polyglucoside (C10-16), sodium lauryl glucose carboxylate, a short/medium/long chain glucoside surfactant, or disodium alkylpolyglucose citrate.

12 . The dissolvable sheet as claimed in claim 11 , wherein said third cleaning active comprises an amphoteric surfactant in combination with a nonionic surfactant.

13 . The dissolvable sheet as claimed in claim 12 , wherein said amphoteric surfactant is alkyl polyglucoside (C10-16), and said nonionic surfactant is lauramine oxide.

14 . The dissolvable sheet as claimed in claim 10 , wherein said third cleaning active comprises an amphoteric and zwitterionic surfactant.

15 . The dissolvable sheet as claimed in claim 14 , wherein said third cleaning active comprises cocamidopropyl betaine.

16 . The dissolvable sheet as claimed in claim 1 , further comprising a fourth cleaning active comprising an ionic surfactant, an anionic surfactant, a zwitterionic surfactant, a cationic surfactant, or an amphoteric surfactant.

17 . The dissolvable sheet as claimed in claim 16 , wherein said fourth cleaning active comprises an amine oxide, a glucoside, a sulfonic acid salt, a sulfonate, a phosphoric acid ester, a carboxylic acid salt, cetyl betaine, lauramine oxide, sodium lauriminodipropionate, alkyl polyglucoside (C10-16), sodium lauryl glucose carboxylate, or a short/medium/long chain glucoside.

18 . The dissolvable sheet as claimed in claim 1 , further comprising a food grade preservative.

19 . The dissolvable sheet as claimed in claim 18 , wherein said preservative comprises potassium sorbate.

20 . The dissolvable sheet as claimed in claim 1 , further comprising enzymes.

21 . The dissolvable sheet as claimed in claim 20 , wherein said enzymes comprise protease enzymes, amylase enzymes, pectinase enzymes, lipase enzymes, cellulase enzymes, mannanase enzymes, or a combination thereof.

22 . The dissolvable sheet as claimed in claim 1 , further comprising a release agent.

23 . The dissolvable sheet as claimed in claim 22 , wherein said release agent comprises an oil, a silicone, a plant oil, a glyceride, a triglyceride, a glycol, a glycerol, a paraffin, a wax, or a mineral oil.

24 . The dissolvable sheet as claimed in claim 1 , further comprising a water softener and chelating agent.

25 . The dissolvable sheet as claimed in claim 24 , wherein said water softener and chelating agent comprises aminopolycarboxylate, glutamate diacetate, ethylenediaminetetraacetic acid, nitrilotriacetic acid, gluconate, aminopolycarboxylic acid, sodium gluconate, tetrasodium GLDA, or carboxymethyl inulin.

26 . The dissolvable sheet as claimed in claim 1 , further comprising a fragrance.

27 . The dissolvable sheet as claimed in claim 26 , wherein said fragrance comprises an essential oil, a botanical extract, or a natural aromachemical.

28 . The dissolvable sheet as claimed in claim 1 , further comprising an agent acting as a stabilizer, a water treatment, a scale inhibitor, or a soil anti-redeposition agent.

29 . The dissolvable sheet as claimed in claim 28 , comprising carboxymethyl inulin, a water soluble polymer, a partially neutralized itaconic acid, a polyacrylate polymers, or a cellulose.

30 . The dissolvable sheet as claimed in claim 1 , wherein said first substrate builder comprises:
from about 2 wt-% to about 8 wt-% of polyvinyl alcohol (PVA) B-05; and from about 10 wt-% to about 20 wt-% of polyvinyl alcohol (PVA) B-17; wherein said second substrate builder comprises up tot about 30 wt-% of a starch; and wherein said dissolvable sheet further comprises:
from about 5 wt-% to about 40 wt-% of said sodium laurylglucosides hydroxypropylsulfonate;
from about 5 wt-% to about 20 wt-% of glycerin; and
from about 10 wt-% to about 25 wt-% of potassium cocoate or alpha olefin sulfonate.

31 . The dissolvable sheet as claimed in claim 30 , further comprising:
from about 1 wt-% to about 10 wt-% of cocamidopropyl betaine; from about 1 wt-% to about 5 wt-% of tetrasodium GLDA—Liquid 50%; from about 5 wt-% to about 20 wt-% alkyl polyglucoside (C10-16); and from about 1 wt-% to about 10 wt-% of lauramine oxide.

32 . The dissolvable sheet as claimed in claim 1 , configured as a laundry detergent sheet.

Assignees

• Dizolve Group Corp
• Bissell Inc

Inventors

• Tibbs Kevin A
• Al-Faraj Ala'A
• Carbo Dabove Daniel Alberto

Classifications

• C11D17/042 Primary

  Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions · CPC title

• C11D3/3753

  Polyvinylalcohol; Ethers or esters thereof · CPC title

• C11D3/33

  Amino carboxylic acids · CPC title

• C11D3/386

  Preparations containing enzymes {, e.g. protease or amylase} · CPC title

• C11D3/50

  Perfumes · CPC title