A kind of highly concentrated laundry liquid without gel and precipitation and preparation method thereof

Abstract

The invention discloses a highly concentrated laundry liquid without gel and precipitation and a preparation method thereof. A highly concentrated laundry detergent that does not gel and has no precipitation, its raw materials include anionic surfactants, nonionic surfactants and 2-methyl-2,4-pentanediol; the anionic surfactants include fatty alcohol poly Oxyethylene ether sodium sulfate; the nonionic surfactant includes fatty alcohol polyoxyethylene ether, fatty acid methyl ester ethoxylate and isomerized fatty alcohol polyoxyethylene ether. The highly concentrated laundry liquid without gelation and precipitation and its preparation method, the prepared highly concentrated laundry liquid has good economical efficiency and excellent rinsing performance, the ingredients are not gelled, dissolve quickly, and do not separate out after long-term storage. No delamination, good rheological properties at low temperature.

Description

technical field [0001] The invention relates to the technical field of daily chemicals, in particular to a highly concentrated laundry liquid without gelation and precipitation and a preparation method thereof. Background technique [0002] Ordinary laundry detergent refers to a liquid laundry detergent with an active substance content higher than 15.0% but lower than 25.0%, and a concentrated laundry detergent with an effective substance content higher than 25.0%. Concentrated laundry detergent has the advantages of strong detergency, saving packaging, storage, and low transportation costs due to its high content of effective substances and less water or fillers. In today's increasingly prominent problems of resources, environment, and energy, it is necessary to develop concentrated laundry detergent. Products are conducive to energy conservation and emission reduction, construction resource conservation, and the promotion of sustainable economic and social significance. ...

AI Technical Summary

Problems solved by technology

Concentrated laundry detergent must be cautious in the selection of raw materials because the concentration of effective substances is as high as 45%. Most anionic surfactants have high water content and are not suitable for formulations. Sodium fatty alcohol polyoxyethylene ether sulfate (AES ) generally has a concentration of 70%, and is widely used in liquid detergents, but when the dosage is high, the dissolution will be too slow, which will affect the production efficiency;

[0004] For nonionic surfactants, the most cost-effective and widely used nonionic surfactant is fatty alcohol polyoxyethylene ether (AEO-9). AEO-9 has good emulsifying and detergency properties, but its There will be serious gelation during the dissolution process, making the whole system unable to continue compounding due to too high viscosity and poor fluidity, which is a major technical problem for concentrated laundry detergent;

[0005] In addition, concentrated laundry detergent products are prone to system collapse due to the evaporation of surface water and the precipitation of content during production, storage and use due to their high content of effective substances and low process water content. The viscosity of the laundry detergent is easily affected by temperature, and fluctuates greatly due to the influence of temperature. Generally, the viscosity of laundry detergent is below 1000mPa s at room temperature, but it may be as high as 6000 or even 10000mPa s at low temperature, and the performance at low temperature is poor. If the above-mentioned technical problems are not solved well, it will become the main restrictive factor for the further development of concentrated laundry detergent

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