JPS58117291A - Detergent composition containing acylated methyltaurine salt - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detergent composition containing an acylated methyl taurate salt, more specifically, an N,N-dialkanol substituted product of an N-methyl taurate salt having an acyl group at the N-position and a fatty acid amide. The present invention relates to a detergent composition containing excellent detergency and foaming power.

Conventionally, acylated methyltaurine salts consisting of naturally occurring bile acids and fatty acids have a scum dispersing ability (JAOC8).

48.35-(1971)) and softening ability (surfactants...Ndbook I) 292). Cleaning compositions using this material have also been proposed (for example, in Japanese Patent Application Laid-Open No. 52-101
Publication No. 210). However, this product has poor cleaning performance such as detergency and foaming power at low concentrations.

On the other hand, cleaning agents containing fatty acid jetanolamide,
Conventionally, it has been widely known that 1, for example, a combination system with acyl amino acid salt (JP-A-47-42809, JP-A-48-1
0107 Publication), a combination system with soap or sugar ester (Japanese Unexamined Patent Publication No. 53-9ii007q), or α
-Combination system with sulfo fatty acid ester (JP-A-53-41
310 Publication) etc. have been proposed.

In view of these circumstances, the present inventors have conducted intensive studies on cleaning compositions containing acylated methyl taurate salts with excellent cleaning performance, and have found that acylated methyl taurate salts having a specific structure and It was discovered that a detergent composition containing fatty acid dialkanolamide in a certain range of proportions has excellent detergency and foaming power, and does not irritate the skin of hands, and based on this knowledge, the present invention was developed. It was completed.

That is, 1 the present invention comprises (A) an N-methyl taurine salt having an acyl group having 10 to 1i3 carbon atoms at the N-position, and (B) an N,N-dialkanol substituted product of a mixed fatty acid amide having an average carbon number of 12. The weight ratio of (A) : [B) is 1:1,
The present invention provides a cleaning composition comprising:

N used as component (A) in the composition of the present invention
N-methyltaurine salt having an acyl group at the position has a structure represented by the first-order general formula (1) % formula % (1) where R and -CO- have 10 to 18 carbon atoms. a saturated or unsaturated acyl group,
M is an alkali metal or alkaline earth metal.

These include substituted or unsubstituted ammonium groups.

This N-methyltaurate having an acyl group at the N-position is produced by combining fatty acids obtained from glycerides such as coconut oil, palm oil, and beef tallow, and methyltaurine. are N-cocoylmethyltaurine, N-lauroylmethyltaurine, N-myristoylmethyltaurine, N-palmitoylmethyltaurine, N-oleoylmethyltaurine, N-stearoylmethyltaurine, N-palm oil fatty acid methyltaurine, beef tallow fatty acid methyl Examples include sodium salts such as taurine, potassium salts, magnesium salts, ammonium salts, monoethanolamine salts, jetanolamine salts, triethanolamine salts, and the like.

Among these acylated methyl taurine salts, useful commercially available salts include 1, such as NKOL-L.
MT, CMT, MMT PMT and SMT (and above).

(manufactured by Nippon Chemical Co., Ltd.) and Riboran-TE (manufactured by Lion Akzo Co., Ltd.).

On the other hand, in the composition of the present invention (the N,N-dialkanol substituted product of the mixed fatty acid amide used as the BJ acid component has the following general formula tII), R2 in the formula 91 -C0- is a saturated or unsaturated acyl group having an average carbon number of 12, and Y
is an alkanol group such as ethanol or isopropanol.

The N,N-dialkanol-substituted mixed fatty acid amide is produced from dialkanolamine and a fatty acid obtained from a glyceride such as lauric acid or coconut oil, and is preferably produced from lauric acid or glyceride such as coconut oil. Examples include tanolamide, 7-fatty acid jetanolamide, lauric acid diisonlopanolamide, and the like.

Among these N,N-dialkanol-substituted fatty acid amides, useful commercially available products include Amizole LDE, CDE (manufactured by Yoken Fine Chemicals Co., Ltd.), Marpon ML, MM (Matsumoto Yushi), etc. (
Co., Ltd.).

In one composition of the present invention, the blending ratio of the N-methyltaurine salt having an acyl group at the N-position of the component (A) and the N,N-dialkanol substituted product of the mixed fatty acid amide (BJ acid component) is as follows: It is necessary that the ratio is in the range of 1:1 to 1:9; if it deviates from this range, satisfactory detergency and foaming power cannot be obtained.

In addition, lauric acid monoethanolamide, which is produced from lauric acid and monoethanolamine, and stearic acid jetanolamide, which is produced from stearic acid and jetanolamine, are acylated methyltaurine, which is the +A) component of the present invention. Even when used in combination with salt, satisfactory detergency and foaming power cannot be obtained.

The cleaning composition containing acylated methyltaurine salt of the present invention has excellent cleaning performance such as cleaning power and foaming power.

It is also an excellent composition with high commercial value, as it does not irritate the skin of the hands.

Next, the present invention will be explained in more detail with reference to Examples.

In addition, each evaluation in an Example followed the method shown below.

Detergent power: After dissolving 10 liters of each of pharmacopoeial soybean oil and pharmacopoeia beef tallow in 60 liters of colloform, add 0.12 liters of I-Oil Red and mix well to prepare a stain solution. Dip a glass plate in this solution to contaminate it, then air dry it at 25C for 30 minutes or more to remove chloroform and create a contaminated piece (
Amount of dirt = 20-23mg/sheet). 25 pieces of these 6 contaminated pieces
C,700- in washing solution, 250 r, p, m
After washing by stirring for 3 minutes at a rotational speed of 1, air dry and weigh.

The oil removal rate after cleaning was calculated using the following formula and was defined as the cleaning power.

Wo: Weight of the glass plate Wl: Weight of the glass plate after contamination W2: Weight of the glass plate after washing and air drying Foaming power: Apply 0.59 cm of butter to each plate.

In a vat with a diameter of 30 cm and a depth of 12 cm containing a washing liquid with a liquid temperature of 25 C and a volume of 3 tons, a sponge was compressed 10 times to create bubbles with air. Rub it with a sponge 5 times, and
The foam height was measured immediately after washing the second dish, and this was taken as the foaming power.

Example 1 Compositions using acylated sodium methyltaurate having fatty acid residues of various carbon chain lengths in combination with coconut fatty acid jetanolamide were evaluated for detergency and foaming power in an aqueous solution with an active agent concentration of 0.06%.

The results are shown in Tables 1 to 4 together with the content of each component.

For comparison, compositions other than the composition of the present invention were evaluated in the same manner.

Table 1 Table 2 Table 3 Table 4 Table 4 Example 2 Regarding a composition in which the mixing ratio of sodium lauroyl methyl taurate and various alkanolamides is 1=1 in terms of weight ratio, in an aqueous solution with an active agent concentration of 0.061 The detergency and foaming power were evaluated. The results are shown in Table 5.

Table 5,

Claims (1)

[Claims] 1(A) N having an acyl group having 10 to 18 carbon atoms at the N position
t
A cleaning composition comprising Al: (B) in a weight ratio of 1:1 to 1:9.