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Foamable cleaning composition

A technology of cleaning composition and composition, applied in the direction of high foaming composition, detergent composition, cleaning composition solvent, etc.

Active Publication Date: 2021-04-13
UNILEVER IP HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, addition of higher levels of solvent resulted in phase separation

Method used

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  • Foamable cleaning composition
  • Foamable cleaning composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0133] Material

[0134] Alkoxylated anionic surfactant = SLES paste (70%): sodium lauryl ether sulfate (LES 702EO), available from Galaxy Surfactants

[0135] · Nonionic Surfactant = Ethoxylated Fatty Alcohol-C 12 EO 7 (100%) from Galaxy Surfactants, Tergitol 15-S-7 from Dow Chemicals

[0136] · Glycol Ether = Hexyl Carbitol, Hexyl Cellosolve, Di(Propylene Glycol) n-Butyl Ether, available from Dow Chemicals & Sigma Aldrich

[0137] Fatty acid esters = methyl laurate, ethyl laurate, ethyl caprylate, available from Sigma Aldrich

[0138] Chelating agent = Dequest 2010 (1-hydroxyethylidene-1,1-diphosphonic acid, HEDP, 59% solution): available from Thermphos, Switzerland

[0139] Citric acid (used as is) purchased from Merck India

[0140] · Sodium citrate dihydrate, purchased from Merck India

[0141] ·Deionized water

[0142] Control: Stain removal spray (commercially available sample, imported from Brazil)

[0143] Method for preparing the composition

[0144] Add e...

Embodiment 2

[0169] Example 2: Effect of pH

[0170] Foaming cleansing compositions were prepared based on the formulations shown in Table 2, and the pH of the resulting formulations were maintained at 2.5, 5 and 8 by adding buffers. The composition is sprayed onto the dyed fabric and after this treatment the pretreated fabric is washed according to the procedure described earlier herein. The results are summarized in the table below.

[0171] Table 2: Compositions under different pH conditions

[0172] The present invention A Comparative example 05 Comparative Example 06 Tergitol (15-S-7) 7.5 7.5 7.5 Sodium Lauryl Ether Sulfate 2 2 2 Hexyl Carbitol 5.0 5.0 5.0 Solvent - ethyl octanoate 2.5 2.5 2.5 citric acid 0.12 Sodium citrate 0.38 2.0 5.0 Dequest 2010 1.0 1.0 1.0 water 81.5 80.0 77.0

[0173]The pH of the formulations was measured with a pH meter and the viscosity was measured with a Brookfield ...

Embodiment 3

[0179] Example 3: Effect of Chelating Agents

[0180] To understand the effect of chelating agents, take black tea, latte coffee and ketchup stains. The pH of the formulation was maintained with 1% citric acid.

[0181] The present invention A Comparative Example 07 Tergitol (15-S-7) 7.5 7.5 Sodium Lauryl Ether Sulfate 2 2 Hexyl Carbitol 5.0 5.0 Solvent - ethyl octanoate 2.5 2.5 citric acid 0.12 1.0 Sodium citrate 0.38 -- Dequest 2010 1.0 -- water 81.5 81.0

[0182] The pH of comparative formulation 07 was maintained at 3.0 by adding 1% citric acid. Cleanliness evaluations were performed on black tea, coffee with milk and ketchup.

[0183]

[0184] The difference in 2 SRI units is significant.

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Abstract

A foamable, liquid cleaning composition comprising: i. 0.5 to 5 wt.% C8-18 alkoxylated anoionic surfactant having 1 to 30 moles of alkylene oxide,; ii. 5 to 20 wt.% nonionic surfactants; iii. 0.1 to 10 wt.% water miscible glycol ether solvent; iv. 0.1 to 10 wt% water immiscible fatty acid ester solvent selected from the group consisting of methyl laurate, ethyl laurate, ethyl octanoate or mixtures thereof; v. 0.1 to 10 wt% of sequestrant selected from the group consisting of citric, adipic, succinic, maleic, glutaric acids, mixtures thereof or salts thereof; and vi. water, wherein the composition has a viscosity of less than 100 mPa.s at 25 DEG C and 20 s<-1>, wherein ratio of the sum of alkoxylated surfactant (i) and nonionic surfactant (ii) to the solvent is in a weight ratio ranging from 0.93:1 to 20:1, and wherein the pH of the composition ranges from 2.0 to 4.5. A cleaning system comprising a spraying device and a foamable liquid cleaning composition, said spraying device forming a foam with a density of less than 0.4 g / ml when ejected from the spray device through the spray head. A method of removing oily fatty stains from fabric. Use of the composition for the removal of oily fatty stains from fabric, said use comprising applying the liquid cleaning composition in the form of a foam onto the surface of the fabric.

Description

technical field [0001] This invention relates to pretreatment compositions for cleaning fabrics. In particular, the present invention relates to sprayable foamable liquid cleaning compositions. Background technique [0002] Removing stains from fabrics can be a challenge. If the stain is light and non-greasy, washing the stained fabric with detergent can produce satisfactory results. However, if the stain is heavy, washing with detergent often does not remove the stain because the detergent ingredients are diluted in the wash instead of concentrating on the stain. [0003] For successful removal of heavy stains, it is known in the art to apply a separate stain treatment prewash, for example by spraying or spraying the stain treatment product directly on the stain or scrubbing the stain with a wipe impregnated with the stain treatment product. [0004] Sprayable cleaning compositions have been used for many years for both domestic and industrial cleaning of a wide variety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D11/00C11D17/00C11D17/04C11D1/83C11D1/72C11D1/29C11D3/20
CPCC11D1/29C11D1/72C11D1/83C11D3/2068C11D3/2075C11D3/2093C11D17/0008C11D17/046C11D2111/42C11D2111/12C11D1/94C11D3/0094C11D3/43
Inventor K·阿查尔亚N·苏布拉马尼亚姆
Owner UNILEVER IP HLDG BV
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