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Water-soluble unit dose articles comprising amine oxide surfactants and dominant non-aqueous solvents

A surfactant and non-aqueous solvent technology, applied in the field of water-soluble unit dose products, can solve the problems of affecting sealed products, limiting continuous filling speed, falling between cavities, etc., to achieve improved stability and less mechanical properties Effect

Pending Publication Date: 2022-04-05
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such breakage of the "string" can take a while, which in turn limits the speed at which continuous filling can occur
In fact, the time to break can sometimes be a controlling factor in selecting the maximum speed at which the fill operation can be performed, as accelerating the fill operation before the "string" breaks can cause some of the liquid laundry detergent composition from the "string" to accidentally fall into the cavity between the films, which in turn affects the ability of the two films to seal together and leads to premature fracture or failure of the unit dose product

Method used

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  • Water-soluble unit dose articles comprising amine oxide surfactants and dominant non-aqueous solvents
  • Water-soluble unit dose articles comprising amine oxide surfactants and dominant non-aqueous solvents
  • Water-soluble unit dose articles comprising amine oxide surfactants and dominant non-aqueous solvents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] Example 1: Liquid drawing

[0111] The following shear thinning liquid detergent formulations were prepared using standard mixing techniques and equipment known to those skilled in the art. In cases where the non-aqueous solvent was dominant (ie, the amount of non-aqueous solvent was greater than the amount of non-amine oxide surfactant), the amine oxide surfactant was added to the inventive samples. Comparative Samples 1 and 2 contained a non-aqueous solvent that was not dominant with the amine oxide surfactant (Comparative Sample 1) or without the amine oxide surfactant (Comparative Sample 2).

[0112] Table 1

[0113]

[0114] 1: Dye fixative: Poly(2-hydroxypropyldimethylammonium chloride), commercially available under the tradename TEXCARE DFC 6 from Clariant.

[0115] The liquid stringing distribution of these samples was evaluated by measuring the break time of capillaries formed when the test samples were stretched to a certain strain using a Haake Caber...

Embodiment 2

[0118] Example 2: Film plasticizing properties

[0119] The samples prepared as in Example 1 were evaluated for the effect of the addition of amine oxides on the plasticizing properties of water-soluble films in the presence of a predominantly non-aqueous solvent. A 75 μm thick polyvinyl alcohol-based water-soluble film (such as a blend of polyvinyl alcohol homopolymer and carboxylated anionic polyvinyl alcohol copolymer) as supplied by the company Monosol was used to evaluate the effect of film plasticization on laundry detergent combinations There is a dependence on amine oxide in the compound. Effect of Film Plasticization on the Presence of Amine Oxide in Laundry Detergent Formulations According to the Invention Water-soluble films were subjected to aging by measuring the film elastic properties (E-modulus) and by immersion in the formulations of inventive sample 1 and comparative samples 1 to 5 The stress at 100% strain after the experiment is defined. Immerse a 12cm ...

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PUM

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Abstract

The invention relates to a water soluble unit dose article comprising an amine oxide surfactant and a dominant non-aqueous solvent. The present invention relates to water soluble unit dose articles comprising an amine oxide surfactant and a dominant non-aqueous solvent, methods of making and methods of use.

Description

technical field [0001] The present invention is directed to water soluble unit dose articles comprising amine oxide surfactants with a predominately non-aqueous solvent, methods of making and methods of use. Background technique [0002] Water soluble unit dose products are preferred by consumers for their convenience and ease of use. Consumers also like the fact that they do not need to measure detergent doses, so this eliminates accidental spills during dosing operations. Accidental doses can be messy and inconvenient. Furthermore, due to the excellent performance of amphoteric surfactants, especially amine oxide surfactants, in greasy cleaning, there is a need for water soluble unit dose formulations containing amine oxide surfactants. [0003] During manufacture of the unit dose article described above, the first film is deformed in the mold to form an open cavity into which the liquid laundry detergent composition is added through the fill nozzle. After filling the s...

Claims

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Application Information

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IPC IPC(8): C11D1/825C11D1/83C11D3/60C11D3/20C11D3/37C11D3/44C11D17/04
CPCC11D1/83C11D3/0021C11D17/043C11D1/22C11D1/29C11D1/86C11D1/72C11D1/40C11D3/3788C11D3/2079C11D3/30C11D1/75C11D3/044C11D3/3703C11D2111/12
Inventor 翁延婕汤鸣克里夫·艾伯特·韦尔默朗塞尔吉奥·罗德里格斯罗德里格斯利斯贝特·玛利亚·科妮莉亚·德特罗克
Owner THE PROCTER & GAMBLE COMPANY
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