JPS6038308A - Composition having pearly luster - Google Patents

Abstract

PURPOSE:A composition useful as a detergent such as shampoo, etc. or a hair cosmetic such as hair rinse, etc., having improved pearly luster and improved dispersion stability, containing a surface active agent, a fatty acid glycol diester, a propylene glycol condensate, and water. CONSTITUTION:A composition having pearly luster consisting of (A) 0.5-35wt% surface active agent (e.g., POE alkyl ether carboxylate), (B) 0.2-5.0wt% fatty acid glycol diester shown by the formula (R, and R' are 13-21C alkyl; n is 1, 2, or 3), (C) 0.5-20wt% propylene glycol condensate, and (D) 25-97wt% water. The addition of the propylene glycol condensate provides crystal of fatty acid glycol diester having uniform particle diameter, plain surface, and a flat particle shape. Consequently, the composition having beautiful pearly luster which heretofore has never been found can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composition having excellent pearlescent luster and good dispersion stability.

Conventionally, washing shampoo, body shampoo, cleansing foam, etc. ? Iriya-＼Arinsu etc.’s hair transformation II
I fil has often been given a pearlescent luster for the purpose of doubling the enjoyment of use.

So-called pearlescent agents for imparting pearlescent luster include crystals of behenic acid (JP-A-57-149212) and diester of dicarboxylic acid (JP-A-57-149212).
67510), linear alkanediol diesters (Japanese Unexamined Patent Publication No. 57-67511), etc., but the most commonly used are fatty acid glycol diesters.

Many attempts have been made to obtain good pearlescent luster using fatty acid glycol diesters. For example, JP-A-57-
No. 51799 discloses an attempt to impart good pearlescent luster to surfactant compositions for shampoos, conditioners, etc. by using fatty acid glycol diester in combination with nucleating agents such as sodium sulfate, ammonium chloride, and citric acid. , JP-A-57-133400 discloses an attempt to obtain a more beautiful burl luster by using an asymmetric fatty acid diester to account for 50% by weight or more of the fatty acid glycol diester.

Needless to say, when trying to obtain good pearlescent luster, the crystals formed by the pearlescent agent in the system have a particle size of l#i+
It is desirable that the crystal surface be smooth and that the particle shape be as flat as possible. However, the inventors of the present invention attempted to produce shampoos and the like based on the above-mentioned publication, and the results were still unsatisfactory in terms of particle size uniformity, surface smoothness, particle shape flatness, etc.

In view of the above circumstances, the present inventors have conducted intensive research to create a composition with more beautiful pearlescent luster. , it is possible to obtain crystals of fatty acid glycol diester having a uniform particle size, a smooth surface, and a flat particle shape, thereby obtaining a composition with a beautiful pearlescent luster that has not been achieved before; It has been found that the pearlescent composition obtained in this way has superior dispersion stability over time compared to a composition that does not contain the above-mentioned specific propylene glycol condensate.The present invention is based on the above-mentioned findings. .

That is, the present invention is a pearlescent composition characterized by containing the following four components.

(1) Surfactant (2) One or more fatty acid glycol diesters represented by formula (1) RCoo (CH2CH1O) n COR' (1)
[In formula (1), R and R′ each have 13 to 21 carbon atoms.
In the alkyl group, R and R′ may be the same or different)
. n is an integer from 1 to 3. ] (3) Propylene glycol condensate (4) Water Below, the structure of the present invention will be explained in detail.

The surfactant used in the present invention may be any surfactant commonly used in shampoos, body shampoos, cleansing foams, rinses, etc. Examples of these include POIE alkyl ether carboxylates, higher fatty acid salts, N-acylamino acid salts, alkyl sulfonates, alkylaria 17 sulfonates, α-olefin sulfonates, acylisethionates, alkyl sulfosuccinic acids. Anionic surfactants such as salts, acyl taurine salts, alkyl sulfates, POE alkyl sulfates, alkyl phosphates, nonionic surfactants such as alkylolamides, po+', -pop block copolymers, amine oxides, carboxy These include amphoteric surfactants such as betaine, sulfobetaine and imidacillin derivatives, and cationic surfactants such as quaternary ammonium salts.

In the present invention, one or more of the above surfactants may be selected and used. - Content is 0.5 to 35% by weight based on the total amount of the pearlescent composition of the present invention
It is. When used as detergents such as shampoos, body shampoos, and cleansing foams, the amount is preferably 3 to 35% by weight, more preferably 10 to 30% by weight.

When used in hair cosmetics such as hair rinses, the amount is preferably 0.5 to 10% by weight, more preferably 1 to 5% by weight.

Naturally, when making the above-mentioned detergents and hair cosmetics, it is necessary to select and use an appropriate surfactant from among the surfactants listed above. If the amount of the surfactant is less than 0.5% by weight, the pearlescent composition will not have sufficient detergency or rinsing effect, and the fatty acid glycol diester will not be easily dispersed in the system. Conversely, 35% by weight
Exceeding this is not preferable because the pearlescent composition tends to be more irritating to the eyes and skin.

The fatty acid glycol diester used in the present invention is prepared by the following 2N).

RCOO(CHICH2O) n COR' (1) In formula (1), R and R' each have 13 to 2 carbon atoms.
In the alkyl group of No. 1, R and R'' may be the same or different.Although the alkyl group may be linear or branched, it is preferable that the alkyl group is linear because it gives better pearlescent luster.

n is an integer from 1 to 3.

In the present invention, any one or more of the above fatty acid glycol diesters may be selected and used. The blending amount is 0.1 to 1 in the total amount of the pearlescent composition of the present invention.
0% by weight, preferably 0.2-5.0% by weight.
If it is less than 0.1% by weight, the pearlescent luster is insufficient. On the other hand, if it exceeds 10% by weight, the foaming, detergency, rinsing effect, and usability of the pearlescent composition will be adversely affected.

The propylene glycol condensate used in the present invention is a dehydrated condensate of propylene glycol. In the present invention, the number of reduced units from 2 to 15 is one or two! The above can be arbitrarily selected and used. Propylene glycol does not have the effect of the present invention, and when the number of units is reduced to 16 or more, the viscosity decreases to -1-
An unfavorable effect appears on the arm and the angle of use. Propylene glycol is 1°2 depending on the position of its hydroxyl group.
-Propylene glycol and 1,3-propylene glycol are distinguished, but the propylene glycol condensate used in the present invention may be derived from either of 1.2 and 1.3 of -I-. Naturally, the above-mentioned 1.2-unit and 1.3-unit may be present in a mixture at the same time in one molecule.

In the present invention, one or two of the propylene glycol condensates mentioned above are selected and used. Since dipropylene glycol and 1-ribropylene glycol are commercially available, it is easy to prepare them manually. The blending amount is 0.1 to 30% by weight, preferably 0.5 to 20% by weight based on the total amount of the pearlescent composition of the present invention. If the amount is less than 0.1% by weight, the effect of the present invention will not be fully exhibited, and if it exceeds 30% by weight, the foaming, detergency, rinsing effect, and 4N usage of the pearlescent composition will be adversely affected.

In the present invention, the weight ratio of (1) the fatty acid glycol diester and (3) the dipropylene glycol is (
1)/(3)=in the range of 1 to 9.01, more preferably in the range of I:tO, 5 to 0.1. If it exceeds this range, the effect of imparting beautiful pearlescent luster and the effect of improving dispersion stability over time of the present invention will be poor.

The amount of water in the present invention is 25 to 97% by weight.

In order to produce the pearlescent composition of the present invention, it is not necessary to take any special steps, and it may be carried out in accordance with the steps for producing a composition containing a normal fatty acid glycol diester.

In addition to the above-mentioned essential components, the composition having pearl luster of the present invention may optionally contain other ingredients for forming shampoo, body shampoo, conditioner, and cleansing foam, such as higher alcohols and strength oil. , animal and vegetable oils, silicone oils, synthetic ester oils, oils and waxes such as higher fatty acids, humectants such as dipropylene glycol, propylene glycol and glycerin, natural extracts extracted from animals and plants and their derivatives, organic materials such as citric acid and lactic acid. Acids, inorganic salts such as I/lium chloride, potassium chloride, vitamin E
1. Drugs or bactericidal agents such as vitamin A palmitate, zinc pyrithione, and i-lichlororuvanilide, water-soluble polymers such as methyl cellulose and hydroxyethyl cellulose cationized cellulose ether, coloring agents, fragrances, preservatives, 11 (alcohols), and chelates. By adding UV absorbers, ultraviolet absorbers, etc., it is possible to create cleansing products such as shampoos, body shampoos, cleansing foams, etc., or hair cosmetic products such as hair rinses, which have excellent pearlescent luster.Of course, these other ingredients can also be used. must be blended within a quantitative and qualitative range that does not impair the effects of the present invention.

There are no particular restrictions on the formulation of the above-mentioned shampoos, body shampoos, cleansing foams, etc., or hair cosmetics, such as hair rinses, but preferably liquid to cream (including emulsion and paste).

Next, embodiments and effects of the present invention will be described in more detail based on examples. The present invention is not limited to these examples. In addition, the numbers do not represent ■i amount%.

Example 1 ■Lauryl sulfate Na 12 ■Lauryl dimethylaminoacetic acid betaine 4 ■Coconut oil fatty acid diethanolamide 5 ■Ethylene glycol distearate 1 and 2 ■Dipropylene glycol 3 ■Ion exchange water Remaining manufacturing method ■～■and■～ Mix and heat to dissolve. To this, separately heated and dissolved (2) was added, mixed and dissolved, and then cooled to obtain a shampoo. The resulting shampoo had excellent pearlescent luster and good dispersion stability over time.

Comparative Example 1 A shampoo was obtained in the same manner as in Example 1 except that propylene glycol was used instead of dipropylene glycol.

Comparative Example 2 A shampoo was obtained in the same manner as in Example 1 except that dynamite glycerin was used instead of dipropylene glycol.

Comparative Example 11 of Burl Gloss The pearl gloss of Inversion Example 1 and Comparative Example 2 was compared by microscopic observation. The results are shown in the micrographs of FIGS. 1-3.

Figure 1: Example 1 Figure 2: Comparative Example 1 Figure 3: Comparative Example 2 Although the figure (photograph) does not show the shape of the crystals of ethylene glycol distearate 1, which is a Burr brightening agent, The crystals of Comparative Examples 1 and 2 were rectangular, had uneven crystal surfaces, and were irregular in size, whereas the crystals in Example 1 had a beautiful rhombus shape, uniform size, and good pearl luster. It shows that.

Example 2 ■P, O, B, (average 2 mol) Lauryl ether sulfate Na 10 ■P, O, l
E, (2 moles on average) Lauryl ether sulfate Lauryl dimethylamine oxide 3 Lauric diethanolamide 4 Ethylene glycol distearate 0.1 Dipropylene glycol 0.1 Fragrance 0.2 Ion exchange Water Residue production method Seven people produced shampoo according to Example 1. The resulting shampoo had excellent pearlescent luster and good fractional stability over time.

Example 3 ■ Cocoyl methyl taurine-Na 10 ■ Lauryl dimethylaminoacetic acid betaine 8 ■ Coconut oil fatty acid diethanolamide 4 ■ Ethylene glycol distearate 3 ■
Pentapropylene glycol 3 ■Ion-exchanged water Residual production method The shampoo was produced according to Example 1. The resulting shampoo had excellent pearlescent luster and good dispersion stability over time.

1 Example 4 ■Lauroylmethyltaurine-Na IQ ■Lauroylpropylamide betaine β ■Lauric acid jetanolamide 4 ■Diethylene glycol distearate 3 ■Dipropylene glycol 3 ■Fragrance 0.2 ■Ion exchange water Residual production method Example 1 A shampoo was obtained. The resulting shampoo had excellent pearlescent luster and good separation stability over time.

Example 5 ■P. O. U; (average 1.5 mol) Na lauryl ether sulfate 10p, o. r
+. <Average 1.5 mol) Lauryl ether sulfate-1-TEA 3 ■ Cocoamphocarboxyglycinate * 3 ■ Coconut oil fatty acid diethanolamide 4 ■ Ethylene glycol similistate 22 ■ Dipropylene glycol 3 ■ Cationized cellulose ether 0. 5 ■ Citric acid
0.2 ■Fragrance 0.2 [Phase] Ion-exchanged water Residue (01 RC-, coconut fatty acid residue) Production method A shampoo was obtained by producing according to Example 1. The resulting shampoo had excellent pearlescent luster and good dispersion stability over time.

Example 6 ■Lauroyl methyl taurine-Na 10 ■Cocoyl dihydroxydiethylamine oxide 6 ■Lauric acid jetanolamide 4 ■Ethylene glycol disterolate 5 ■Dipropylene glycol 5 ■Poly(thumedel diallylammonium chloride) 1 ■Citric acid 0.2 ■Fragrance 0.2 ■Ion-exchanged water Example 1 shows how to make the residue. The dispersion stability was also good.

Example 7 ■ Yashiura Potash Soap 10 ■ Yashii + L + Fatty Acid Diethanolamide 4 ■ Lauryl Sulfur 1Na (40%) 10 ■ Na N-lauroylglutamate 2 ■ L-+J 7' Robylene Glycol 3 ■ Ethylene Glycol Dibe ＼ Netoto 2 ■ Ion-exchanged water The remaining manufacturing method was manufactured according to Example 1 to obtain a body shampoo.

The obtained body shampoo had excellent pearlescent luster and good dispersion stability over time.

Example 8 ■ Lauric acid 4 ■ Myristic acid 12 ■ Palmitic acid 1° ■ Stearic acid 1° ■ Peace wax 1 ■ Caustic potash 6 ■ Dipropylene glycol 3° ■ Polyethylene glycol 400 5 ■ Ethylene glycol diisostearate 0.3 [ phase]
Fragrance 0.5 0 Ion-exchanged water Remaining production method Heat and dissolve ① to ② and [phase] (oil phase), , ② to ② and ③ to heat and dissolve (water phase). Add the water phase to the oil phase and stir thoroughly. To this was added (2) which had been heated and dissolved separately, mixed and dissolved (5), and then cooled to obtain a cleansing foam. The resulting cleansing foam had excellent pearlescent luster and good dispersion stability over time.

Example 9 ■Stearyltrimethylammonium chloride 2 ■Hythyl alcohol 2 ■Silicon oil 3 ■P, O, E, (average 10 moles) Oleyl alcohol ether 1 ■Ethylene glinyl 1-yl distearate 0.5 ■Dipropylene glycol 5 ■Incense II O, 5 ■Ion-exchanged water Residue production method ■~■, ■Dissolve by heating, add to similarly heated ■, ■, and stir. The mixture was cooled while stirring to obtain a rinse.

The obtained rinse had excellent pearlescent luster and good dispersion stability over time.

[Brief explanation of drawings]

6. FIG. 1 is a microscopic photograph showing the surface state of the fatty acid glycol diester crystals in the pearlescent composition according to the present invention. Figures 2 and 3 are microscopic photographs showing the surface state of fatty acid glycol diester crystals in compositions other than those of the present invention. Figure 1... Example 1 Figure 2... Comparative IP111 Figure 3... Comparative Example 2 Patent applicant Shiseido Co., Ltd. f111 Figure 2 Figure 13 Figure 60-

Claims (1)

[Scope of Claims] A composition having a pearlescent luster characterized by containing the following four components. (1) Surfactant (2) One or more fatty acid glycol diesters represented by formula (1) RCOO(CTf2C1f2C'1)ncOR' (r
) In [Formula Date), R and R' are each an alkyl group having 13 to 21 carbon atoms, and R and R' may be the same or different. n must be an integer between 1 and 3. (3) Propylene glycol condensate (4) Water