Method of laundering fabric

A technology for fabrics and washing liquids, which can be used in the preparation of detergent compositions, organic washing compositions, and detergent mixture compositions, and can solve problems such as reduced washing performance.

Active Publication Date: 2015-05-27
UNILEVER IP HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Surprisingly, we have found that when using the compositions and methods described in WO2009 / 153184, compared to the effect observed with prior art detergent liquids, even with Much less detergency in wash performance occurs on fabrics treated with cationic rinse conditioners than those of the soiling water-soluble alkyl ethoxysulfates

Method used

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  • Method of laundering fabric
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0229] Embodiment 1-performance evaluation

[0230] The experiments described below were designed to determine the effect of typical rinse conditioner levels on stain removal in subsequent washes.

[0231] Table 5 - Tested Products and Doses

[0232] Example

Dose / ml

A

37

B

35

1

35

2

35

[0233] Washing was performed in a European Miele washing machine using a standard 30°C cotton wash cycle. The main wash intake was 15 L of ambient temperature water at 26°FH water (Ca:Mg 3:1) and the total wash time (including rinse) was 1 hour 56 minutes. Each cycle also includes 3kg of mixed ballast load (40% spun polyester, 30% spun cotton, 30% knitted cotton) to better simulate realistic laundering use conditions.

[0234] Use two washing methods:

[0235] Method 1 - Prewash only

[0236] Each product in Table 5 was used to wash ballast loads as described above and a series of cotton and polyester samples prepared f...

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PUM

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Abstract

A method of laundering fabric onto which a cationic fabric softening active has been deposited and dried comprising the step of contacting the fabric with an aqueous wash liquor having the following composition: a) 15 to 600 ppm non-soap surfactant, b) at least 50 ppm ethoxylated polyethylene imine, c) at least 25 ppm polyester soil release polymer, the total level of polymer (b+ c) being at least 20 wt% of the level of non soap surfactant (a), d) 0.1 to 100 ppm enzyme selected from protease, amylase, cellulase, e) optionally, lipase enzyme.

Description

technical field [0001] The present invention relates to a method of laundering fabrics on which a quaternary ammonium fabric softening compound has been deposited and dried. Background technique [0002] Cationic rinse conditioners are known to be almost completely consumed on fabrics during the rinse process. From page 490 of "Liquid detergents (Liquid detergents)" published by CRC press in 2006, for example, it is known that anionic surfactants will be complexed with cationic active substances, and the resulting complexes can be deposited on fabrics, thus reducing Detergency performance of detergent products containing anionic surfactants. This loss of performance can be expected to become more pronounced at lower surfactant levels in the wash. This expectation is supported by the teaching in WO 93 / 018124 (P&G), which, although primarily concerned with granular detergent compositions, should be expected to apply to liquids as well, since the effect occurs in the wash. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/00C11D3/37C11D3/386
CPCC11D3/0036C11D3/3715C11D3/3723C11D3/386C11D3/38645C11D11/0017
Inventor J·贝内特D·S·格莱恩格A·J·帕里
Owner UNILEVER IP HLDG BV
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