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Low surfactant, high carbonate liquid laundry detergent compositions with improved suds profile

一种衣物洗涤剂、组合物的技术，应用在表面活性洗涤剂组合物、洗涤剂组合物、非离子表面活性化合物等方向，能够解决不期望等问题

Active Publication Date: 2016-12-14
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, while a large amount of suds is expected in a fabric cleansing wash cycle, it is paradoxically undesirable in a rinse cycle

Method used

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  • Low surfactant, high carbonate liquid laundry detergent compositions with improved suds profile
  • Low surfactant, high carbonate liquid laundry detergent compositions with improved suds profile
  • Low surfactant, high carbonate liquid laundry detergent compositions with improved suds profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0078] Example I. Exemplary Liquid Detergent Compositions

[0079] Six (6) exemplary liquid laundry detergent compositions A-F comprising low levels of LAS and high levels of sodium carbonate as described herein above were formed by the following steps:

[0080] 1. First form a solvent environment by adding water, glycerin, propylene glycol, etc.

[0081] 2. Add citric acid and MEA.

[0082] 3. The polymer is added using the heat generated by the neutralization reaction between citric acid and MEA.

[0083] 4. Add surfactant and mix well.

[0084] 5. Adjust the pH of the mixture to greater than 7 and then add sodium carbonate.

[0085] 6. Add beautifying agents (perfumes, dyes, etc.) and make up the formulation to 100% with water.

[0086] The composition of these 6 exemplary liquid laundry detergent compositions is provided below:

[0087] Form I :

[0088]

[0089] 1 AES can be AE 1 S, AE 15 S, AE 2 S, and / or AE 3 S, its amount is 0-20%.

[0090] 2 Straight...

Embodiment 2

[0102] Embodiment 2: comparative test of foaming characteristics

[0103] Liquid laundry detergent compositions were prepared using a common alkaline formulation comprising about 23% by weight 1,2-propanediol, about 10% by weight glycerin, about 2.2% by weight citric acid, and about 5% by weight monoethanolamine (MEA) of four (4) test samples. The first test sample was a control sample, which contained only LAS, no AES or carbonate, and had a relatively low pH of about 7.5. The second sample is an inventive sample, which contains LAS and sodium carbonate, and has a relatively high pH of about 9.5. The third sample is Comparative Example 1, which comprises LAS and AES without sodium carbonate, and is characterized by a relatively low pH of about 7.5. The fourth sample was Comparative Example 2, which contained LAS without AES or sodium carbonate, but adjusted to a relatively high pH of about 9.5 with NaOH.

[0104] The detailed composition of these 4 test samples and their...

Embodiment 3

[0107] Embodiment 3: comparative test of phase stability

[0108] Prepare three (3) liquid laundry detergent compositions with the following ingredients, and test their corresponding phase stability according to the test method described above, and provide the test results hereinafter:

[0109] Table II :

[0110]

[0111]

[0112] The phase stability results show that when LAS and sodium carbonate are formulated into a liquid composition containing too little or too much propylene glycol and glycerin, the liquid composition is unstable and will undergo phase separation when the temperature changes. However, when the liquid composition contains suitable amounts of propylene glycol and glycerol as described in the present invention, the phase stability

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Abstract

A stable liquid laundry detergent composition is disclosed. It contains low levels of a C 10-C 20linear alkyl benzene sulphonate surfactant in combination with high levels of a water-soluble alkali metal carbonate for achieving improved suds profile

Description

technical field [0001] The present invention relates to liquid laundry detergents comprising relatively low levels of anionic surfactants in stable formulations in combination with relatively high levels of water-soluble alkali metal carbonates (ie with little or no phase separation). Despite the low surfactant content, such liquid laundry detergents exhibit optimal sudsing characteristics, namely relatively high wash suds volume and relatively low rinse suds volume, which is especially desirable for hand-washed fabrics as it allows The consumer experiences a rich suds during the wash cycle while being able to easily complete the rinse in the subsequent rinse cycle. Background technique [0002] Laundry detergents comprising anionic detersive surfactants for cleaning fabrics have been known for many years. Historically, cleaning laundry has been defined primarily as a process involving the removal of stains. Consistent with this historical approach to cleaning, laundry det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/22C11D3/10
CPCC11D1/22C11D1/146C11D1/37C11D1/62C11D1/72C11D1/75C11D3/2068C11D3/43C11D1/65C11D1/83C11D3/10C11D3/2041C11D3/2065C11D2111/12C11D1/143
Inventor 汤鸣陈青牛逦原许冰
Owner PROCTER & GAMBLE CO
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