DD213447A1 - LIQUID FINE DETERGENT - Google Patents

Abstract

It should be a liquid mild detergent m. an increased wash u. Dirt carrying capacity, controlled foaming, good storage stability and improved skin protection effect can be developed. The new liquid mild detergent contains a combination of sodium bisulfonates, sodium oleoyl methyl tauride and phosphates as well as other additives. The mild detergent is suitable for manual and machine use.

Description

Liquid mild detergent

Field of application of the invention

The invention relates to a liquid mild detergent based on synthetic, anionic surfactants for the manual and automatic washing of textiles «

Characteristic of the known technical solutions

The general principle of the construction of mild detergents. has been known for some time. The ability of certain substances to significantly improve the cleaning action of surfactants or surfactant mixtures by selecting a suitable recipe design is used. As surfactants, the following ionogenic and non-ionic substances are used in mild detergent formulations, singly or in combination:

- linear alkylbenzene sulphonates

- Alkylphenol polyglycol ether

- fatty alcohol sulphates

- fatty alcohol polyglycol ether

- fatty alcohol-ester sulfates

alpha-olefinsulfonates

As effective additives mainly phosphates, silicates, carbonates and sulfates are used (S. Riethmayer, SöFW, 9 pounds (1969) 10, 351 ff).

In mild detergents are average average containing an active ingredient content of about 10 to 55% and the proportion of phosphates at about 5 to 40 % .

As further active ingredients bleaching agents, grayness inhibitors, foam regulators, corrosion inhibitors, optical brighteners, enzymes and perfume oils can be used. Difficulties often arise in the production of concentrated mild detergents, since many of the surfactants used have a low solubility and are therefore unstable in concentrated aqueous solutions. Even after short storage times, flocculation or phase separation and crystallization occur in the presence of phosphates. It is extremely difficult, or in most cases impossible, to re-homogenize these inhomogeneous mixtures.

In recent years, phosphate content in detergents has been steadily reduced because of the problems of E.utrophication that occur. The presence of too low an amount of phosphates without the use of additional builders, especially when the detergents are used in hard water, causes precipitation of insoluble calcium phosphates which can be deposited on the cleaned tissue. In addition, reduced water softening results in reduced washing performance.

Object of the invention

The aim of the invention is a liquid mild detergent, which is characterized by a much higher B & nnigungseffekt.

Explanation of the invention of the invention

The object of the invention is to develop a ächaumreguliertes, liquid and hounwirksames mild detergent on the basis of alkanesulfonates and Oleoylmetiayltaurid · This object is achieved by a liquid light-duty detergents for manual and automatic use, containing,! Tatriumalkansulfonate, Hatriumoleoylmethyltaurid, phosphates, urea ψ hydrochloric acid and perfume oil , wherein according to the invention, the cleaning detergent contains 15 to 30 wt .-% detergent substances consisting of sodium salts of n-Paraffinsulfonsäuren with a linear paraffin residue of 12 to 18 carbon atoms and ITatriumoleoylmethyltaurid, wherein the ratio of the active substance content of Hatriumalkansulfonaten to Iatriumoleoylmethyltaurid 1: 0.3 1: 3.0, preferably 1: 0.5 to 1: 1.5 and a builder system of δ to 9 wt .-% • trisodium phosphate, 6-9 wt .-% Graham's salt, 1 to 8 wt -% Contains urea, 0.1 to 2.0 wt .-% hydrochloric acid and 0.5 to 2 wt .-% perfume oil.

The urea serves to clarify the solution and to control the viscosity of the mixture. The addition of hydrochloric acid is carried out to adjust the pH to 7 to 9 · The new cleaning detergent is characterized by a high cleaning effect at temperatures up to 31S ⁰ K, with increased detergency, sufficient soil-carrying capacity combined with improved skin protection. The Abinischungen have excellent storage stability and throughout the temperature range, a controlled foaming. Due to the controlled foam development is the F'einwasch-. medium in addition to the manual application also in household '& ash machines used. It was surprising that the combination of the phosphates used with the anionic surfactants resulted in a mild detergent with a high washing and cleaning effect.

Exemplary embodiments Example 1

9.5% by weight of itatrium alkanesulfonate (100%) 9-5% by weight of sodium oleoylmethyltauride (100% pure)

7.7% by weight of trisodium phosphate

6.8% by weight Graham's salt 3.0% by weight of urea 1.0% by weight of hydrochloric acid 1.5% by weight of perfume oil 61.0% by weight of water

The ingredients of the recipe, without hydrochloric acid and the perfume oil, are stirred at about 333 K until the solution is clear and the salts have dissolved. · Bach cooling to about 313 K, the pH is adjusted to the desired value by addition adjusted by hydrochloric acid and finally the perfume oil added with stirring.

The examination of the recipe example (according to internal working instructions of ASlIW Zittau) results in an improvement of the washing capacity by 30 % compared to the standard detergent . The soil-carrying capacity (according to internal working instructions of the YEB Genthin washing agent ) is 90 % and the pH of the mixture is 7.5 · The dynamic skin capacity (foam height at 313 K) is 120 mm according to TGL 29 799/03,

Example 2

9.5% by weight of anisodium alkanesulfonate (HCl)

11.5% by volume of sodium oleoylmethyltauride (100%)

9.0% by weight of trisodium phosphate

6.0% by weight Graham's salt

3.5% by weight of urea

1.2% by weight of hydrochloric acid

1.8% by weight of perfume oil

57.5% by weight of water

The cleaning detergent is prepared analogously to Example 1. Compared to the standard detergent is a. Improvement in wetening capacity by 33 % , dirt-carrying capacity is 95 % and the pH is 8.4. The dynamic foaming capacity is determined with a foam height of 115 mm (TGL 799/03).

Example 3

12.5 wt -.% Batriumalkansulfenat (100%) 8.5 wt -.% ITatriumoleoylmethyltaurid (100%) 6.5 wt .- ^ trisodium

8.0 eq.% Graham salt

1.5% by weight of urea

0.7% by weight of hydrochloric acid

.0.8 parts by weight of perfume oil 61.5% by weight of water

The! Mild detergent is prepared analogously to Example 1 and achieved in the examination of the washing power compared to the standard detergent an increase of 35 %, the soil carrying capacity is 92 % and the pH 7.8. The dynamic foaming capacity is determined with a foam height of 120 mm (TGL 29 799/03).

Claims (1)

invention claim Liquid mild detergent for manual and machine use, containing Hatriumalkansulfonate, Hatriuraoleoylmethyltaurid, phosphates, urea, hydrochloric acid and perfume oil, characterized in that the mild detergent contains 15 to 30 wt .-% detergent-active substances consisting of Hatriura salts of n-paraffin sulfonic acids with a linear paraffin residue of 12 to 18 carbon atoms and Hatriumoleoylmethyltaurid, wherein the ratio of the active substance contents of Hatriumalkansulfonaten to Hatriumoleoylmethyltaurid 1: 0.3 to 1: 3.0, preferably 1: 0.5 to 1: 1.5 and a builder system from 6 to 9 C -ew.-ίί trisodium phosphate, 6 to 9 wt -.% Graham's salt, 1 to 8 wt .- § urea, 0.1 to 2.0 wt .- 3 hydrochloric acid, and 0.5 to 2 by weight? Contains% perfume oils.