Package comprising detergent compositions

Abstract

A package for an automatic dishwashing cycle, the package comprising at least one detergent composition in the form of a solid and at least one detergent composition in the form of a gel, wherein the weight ratio of the total amount of solid detergent composition to the total amount of gel detergent composition is between about 1.60:1 and about 3.00:1.

Claims

1. A package for an automatic dishwashing cycle, the package comprising: at least one detergent composition in the form of a solid, wherein the solid detergent composition comprises at least about 20 wt % of at least one builder based on a total weight of the solid detergent composition, at least about 10 wt % of at least one bleaching agent based on the total weight of the solid detergent composition, and at least one enzyme; and at least one detergent composition in the form of a gel, wherein the gel detergent composition comprises at least about 25 wt % of at least one builder based on a total weight of the gel detergent composition; and wherein the weight ratio of the total amount of solid detergent composition to the total amount of gel detergent composition is between 2.00:1 and 3.00:1.

2. The package according to claim 1, wherein the package is a multi-compartment package comprising two or more separated compartments.

3. The package according to claim 2, wherein the multi-compartment package comprises at least a first compartment and a second compartment, further wherein the at least one solid detergent composition is located within the first compartment and the at least one gel detergent composition is located within the second compartment.

4. The package according to claim 3, wherein the multi-compartment package further comprises at least one detergent composition in the form of a liquid.

5. The package according to claim 4, wherein the multi-compartment package further comprises a third compartment, wherein the at least one liquid detergent composition is located within the third compartment.

6. The package according to claim 1, wherein the weight ratio of the total amount of the solid detergent composition to the total amount of the gel detergent composition plus the total amount of the liquid detergent composition is between 1.70:1.00 and 3.00:1.00.

7. The package according to claim 1, wherein the at least one solid detergent composition is present in an amount of at least 56 wt. %, based on the total weight of the package.

8. The package according to claim 1, wherein the at least one gel detergent composition is present in an amount of no more than 36 wt. %, based on the total weight of the package.

9. The package according to claim 4, wherein the at least one liquid detergent composition is present in an amount of no more than 3.4 wt. %, based on the total weight of the package.

10. The package according to claim 1, wherein the package is a water-soluble package.

11. The package according to claim 10, wherein the water-soluble package comprises or is a poly(vinyl alcohol).

12. The package according to claim 11, wherein the water-soluble package comprises a thermoformed poly(vinyl alcohol) film.

13. The package according to claim 10, wherein the water-soluble package is formed of a water-soluble film.

14. The package according to claim 13, wherein the water-soluble film is rigid or flexible at room temperature.

15. The package according to claim 1, wherein the package is in a unit-dose format.

16. A method of washing soiled kitchenware comprising contacting the kitchenware with the package according to claim 1.

17. A method of treating or washing kitchenware in an automatic dishwashing machine, wherein the package according to claim 1 is added to the automatic dishwashing machine.

18. The method of treating or washing kitchenware in an automatic dishwashing machine according to claim 17, wherein the package is added to the automatic dishwashing machine at the start of a main wash cycle or at the start of a pre-wash cycle.

19. The method of treating or washing kitchenware in an automatic dishwashing machine according to claim 17, wherein the package comprises a dosing format which releases the at least one solid detergent composition and the at least one gel detergent composition over a plurality of stages of a dishwashing cycle or over at least one stage of a plurality of dishwashing cycles.

20. The package of claim 1, wherein at least one of: the at least one builder of the solid detergent composition is selected from the group consisting of hydroxycarboxylates, aminocarboxylates, dicarboxylic acid amines, phosphates, phosphonates, salts thereof, and mixtures thereof; the at least one bleaching agent of the solid detergent composition is selected from the group consisting of a percarbonate, a manganese complex comprising triazacyclononane (TACN), or any derivatives of a TACN ligand, and mixtures thereof; the at least one builder of the gel detergent composition is selected from the group consisting of hydroxycarboxylates, aminocarboxylates, dicarboxylic acid amines, phosphates, phosphonates, salts thereof, and mixtures thereof.

21. The package of claim 20, wherein at least one of: the at least one builder of the solid detergent composition is selected from the group consisting of trisodium citrate, methyl glycine diacetic acid (MGDA), N,N-dicarboxymethyl glutamic acid (GLDA), iminodisuccinic acid (IDS), tripolyphosphate, phosphonate, salts thereof, and mixtures thereof; the at least one bleaching agent of the solid detergent composition is selected from the group consisting of coated sodium percarbonate, uncoated sodium percarbonate, tetraacetylethylenediamine (TAED), 1,4,7-trimethyl-TACN, manganese oxalate, manganese acetate, a dinuclear manganese complex, a dinuclear manganese complex comprising TACN or any derivatives of a TACN ligand, and mixtures thereof; and the at least one builder of the gel detergent composition is selected from the group consisting of trisodium citrate, methyl glycine diacetic acid (MGDA), N,N-dicarboxymethyl glutamic acid (GLDA), iminodisuccinic acid (IDS), tripolyphosphate, phosphonate, salts thereof, and mixtures thereof.

22. The package of claim 1, wherein the at least one bleaching agent of the solid detergent composition is present in the form of a bleach system that comprises at least one bleaching agent, at least one bleach activator, and at least one bleach catalyst.

Description

EXAMPLES

Example 1Stain-Cleaning Performance

(1) Two compositions, Comparative Formulation (1) and Inventive Formulation (1), which each comprised a multi-compartment package comprising a detergent composition in the form of a solid, a detergent composition in the form of a gel and a detergent composition in the form of a liquid, were prepared according to the following formulations:

(2) Comparative Formulation (1):

(3) TABLE-US-00001 Poly(vinyl alcohol) (PVOH) Water- Solid Gel Liquid Soluble 7.8 g 5.2 g 0.5 g Film 55.4 36.9 3.5 0.6 g Function Ingredient wt. % wt. % wt. % 4.2 wt. % Builder Trisodium Citrate 42.9 (wt. %) Co-Builder Phosphonate 11.6 (wt. %) (HEDP) Alkali Sodium Carbonate 41.8 (wt. %) and Sodium Bicarbonate Bleach Bleach Actives 27.0 14.3 System (wt. %) Polymer Polycarboxylate 12.0 (wt. %) Homo- and Co- Polymers Enzyme Granular Protease 4.7 (wt. %) Granular Amylase 2.3 Surfactant FattyAlcohol 32.0 99.9 (wt. %) Alkoxylate (EO/PO) Perfume 0.5 (wt. %) Colourant Blue Colourant 0.1 (wt. %) Red Colourant 0.1 Auxiliary Polyglycol 10.0 (wt. %) Thickening Agent Silver Corrosion 0.5 Protection Agent (e.g. Benzotriazole) Glass Protection 0.1 Agent (e.g. Nitrogen- Containing Polymer or Zinc Salt) Anti-Foaming 0.2 Agent PVOH 100.0 Water soluble film (wt. %)
Inventive Formulation (1):

(4) TABLE-US-00002 Poly(vinyl alcohol) (PVOH) Water- Solid Gel Liquid Soluble Film 9.9 g 3.5 g 0.3 g 0.5 g Function Ingredient 69.6 wt. % 24.6 wt. % 2.1 wt. % 3.7 wt. % Builder Trisodium 8.2 42.8 (wt. %) Citrate Co- Phosphonate 13.2 Builder (HEDP) (wt. %) Alkali Sodium 33.2 (wt. %) Carbonate Bleach Bleach Actives 27.0 14.4 System (wt. %) Polymer Polycarboxylate 12.3 (wt. %) Homo- and Co- Polymers Enzyme Granular 3.7 (wt. %) Protease Granular 1.8 Amylase Surfactant Fatty Alcohol 32.0 99.9 (wt. %) Alkoxylate (EO/PO) Perfume 0.5 (wt. %) Colourant Blue Colourant 0.1 (wt. %) Red Colourant 0.1 Auxiliary Polyglycol 10.0 (wt. %) Thickening Agent Silver 0.5 Corrosion Protection Agent (e.g. Benzotriazole) Glass 0.1 Protection Agent (e.g. Nitrogen- Containing Polymer or Zinc Salt) Anti-Foaming 0.2 Agent PVOH 100.0 Water- Soluble Film (wt. %) Total Formulation Ratio of Solid to Weight (including Ratio of Solid to Gel Plus Liquid film) (g) Gel (g/g) (g/g) Comparative 14.1 7.80/ 7.80/ Formulation (1) 5.20 = 1.5 5.70 = 1.37 Inventive 14.2 9.90/ 9.90/ Formulation (1) 3.50 = 2.83 3.80 = 2.61

(5) Each of Comparative Formulation (1) and Inventive Formulation (1) were in the form of a multi-compartment package comprising three separate compartments. Each of Comparative Formulation (1) and Inventive Formulation (1) comprised a first compartment comprising the solid detergent composition, a second compartment comprising the gel detergent composition and a third compartment comprising the liquid detergent composition. The associated weights and compositions of the solid, gel and liquid detergent compositions is provided above.

(6) The solid detergent composition in each of Comparative Formulation (1) and Inventive Formulation (1) was in the form of a compressed powdered solid.

(7) Inventive Formulation (1) comprised a package having a weight ratio of the solid detergent composition to the gel detergent composition of 2.83:1.

(8) Inventive Formulation (1) comprised a package having a weight ratio of the solid detergent composition to the gel detergent composition plus the liquid detergent composition of 2.61:1.

(9) Comparative Formulation (1) comprised a package having a weight ratio of the solid detergent composition to the gel detergent composition of 1.50:1.

(10) Comparative Formulation (1) comprised a package having a weight ratio of the solid detergent composition to the gel detergent composition plus the liquid detergent composition of 1.37:1.

(11) Each multi-compartment package was a water-soluble package made of PVOH.

(12) Inventive Formulation (1) and Comparative Formulation (1) were prepared and each placed in separate stain-cleaning performance trials according to the following:

(13) TABLE-US-00003 Machine Type Bosch Program 1 hour; 65 C. Water Hardness 21 GH (375 ppm) Evaluation after 4 dishwashing cycles

(14) Scoring: 10.0=Most Clean; 1.0=Least Clean. A difference of <1.0 between cleaning performance scores was not considered significant.

(15) Stains were prepared according to IKW protocol, Recommendations for the Quality

(16) TABLE-US-00004 Crme Milk Minced Tea with Starch Egg Brule Skin Meat Pasta Tea Milk Mix Yolk Comparative 10.0 10.0 9.5 9.1 6.7 10.0 10.0 9.8 Formulation (1) Inventive 10.0 10.0 9.9 9.1 9.5 10.0 9.9 9.8 Formulation (1)
Assessment of the Cleaning Performance of Dishwasher Detergents (Part B, Update 2015), German Cosmetic, Toiletry, Perfumery and Detergent Association (IKW)Working Group Automatic Dishwashing Detergents, sofw journal June 2016, 142, 34-48.

(17) Notably, in each trial, Inventive Formulation (1) shows superior stain-cleaning performance compared to Comparative Formulation (1). In particular, Inventive Formulation (1) shows a considerable improvement with respect to tea-stain cleaning performance compared to Comparative Formulation (1).

(18) This shows that providing a package according to Inventive Formulation (1), i.e. comprising a weight ratio of solid detergent composition to gel detergent composition of 2.83:1, i.e. between about 1.60:1 and about 3.00:1, provides superior, cleaning performance compared to a package according to Comparative Formulation (1), i.e. comprising a weight ratio of solid detergent composition to gel detergent composition of 1.50:1.

(19) Surprisingly, Inventive Formulation (1) provides a superior cleaning performance compared to Comparative Formulation (1) because of an optimisation of the weight ratio of the solid and gel detergent compositions, and not, for example, by using significant quantities of additional cleaning actives or novel chemical compounds which are not present in Comparative Formulation (1).

Example 2Shine Performance

(20) The test was carried out using ballast soil to simulate soiled kitchenware. A beaker with 16 g defrosted soil was placed in a top basket of the dishwasher at the beginning of each test.

(21) TABLE-US-00005 Machine Type Bosch Program Eco Water 21 GH Hardness Evaluation After 5 washing cycles Comparative Inventive Parameter Formulation (1) Formulation (1) Short term Glass spotting 2.0 2.1 shine (5 Glass filming 3.3 3.1 cycles) Cutlery spotting 2.0 2.0 Cutlery filming 3.0 2.0 1.0 - No spotting/filming 2.0 - Slight spotting/filming 3.0 - Strong spotting/filming 4.0 - Very strong spotting/filming 5.0 - Extremely strong spotting/filming A difference of 1.0 score on filming was considered significant. A difference of 0.5 score on spotting was considered significant.

(22) Notably, in each trial, Inventive Formulation (1) shows superior shine performance compared to Comparative Formulation (1). In particular, Inventive Formulation (1) shows a considerable improvement with respect to cutlery filming compared to Comparative Formulation (1).

(23) This shows that providing a package according to Inventive Formulation (1), i.e. comprising a weight ratio of solid detergent composition to gel detergent composition of 2.83:1, i.e. between about 1.60:1 and about 3.00:1, provides superior shine performance compared to a package according to Comparative Formulation (1), i.e. comprising a weight ratio of solid detergent composition to gel detergent composition of 1.50:1.

(24) Surprisingly, Inventive Formulation (1) provides a superior shine performance compared to Comparative Formulation (1) because of an optimisation of the weight ratio of the solid and gel detergent compositions, and not, for example, by using significant quantities of additional cleaning actives or novel chemical compounds which are not present in Comparative Formulation (1).

(25) The examples above show that Inventive Formulation (1), an example of a package according to the invention, results in a package with superior wash performance, that is cleaning performance and shine performance, compared to Comparative Formulation (1) which comprises a solid detergent composition and a gel detergent composition in a weight ratio less than 1.60:1.

(26) The above embodiments are described by way of example only. Many variations are possible without departing from the scope of the invention as defined in the appended claims.