JP3041716B2 - Bath composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a bath agent composition containing a plurality of components, and also to a bath agent composition used in combination with bath equipment.

<Prior Art> For example, in JP-A-60-166607, a bath additive mainly composed of polyethylene glycol, a so-called bath agent, is well known.

In addition, as a binder of a bath agent conventionally formed tablet,
Alternatively, polyethylene glycol is widely used as a solvent for a pigment in a powdery bath agent.

<Problems to be Solved by the Invention> However, conventional polyethylene glycol-containing bath agents have the following problems.

a) The stability at high temperature and / or high humidity was poor, and the powdery bath agent caused solid aggregation and blocking over time.

b) When the content of polyethylene glycol was 50% by weight, that is, the main component, it had skin irritation.

c) When a bath preparation composition using only polyethylene glycol as a foaming component is used and foaming is to be promoted by bath equipment, foaming is good, but foaming is poor, and the foam rises out of the bath and requires hot water. Even after wiping, it remained on the skin and caused skin irritation even after bathing.

e) The bath preparation composition containing polyethylene glycol as a main component had a poor cleaning effect at the time of bathing. Further, when used in combination with bath equipment, there is a problem that the washing effect inherent in bath equipment cannot be sufficiently promoted.

An object of the present invention is to provide a bath composition which solves the above problems.

<Means for Solving the Problems> The present invention has been developed to solve the above-described problems, and as a result, by appropriately selecting the following components as necessary and formulating a bath composition, it is possible to achieve a high temperature and / or It can prevent blocking in humid conditions, alleviates skin irritation, and when used in combination with bath equipment, produces good foaming, good foaming, and also produces fine and fine foam with creamy texture, washing effect, massage effect, This has led to the completion of a bath agent composition which promotes and promotes the warm bath effect. Bath equipment here means
The present invention relates to a bath apparatus that generates bubbles containing a compressed gas or the like in bath water, and a bath apparatus configured to circulate hot water in a bath tub, but is not limited thereto. Any bath equipment configured to enhance the bathing effect of massage or the like may be used. That is, according to the present invention, there is provided a bath composition comprising polyethylene glycol, an anionic surfactant and / or a nonionic surfactant, and a starch hydrolyzate and / or a silicate compound.

The bath agent composition according to the present invention will be described in more detail. The polyethylene glycol used in the present invention is 50% by weight or less, preferably 30% by weight or less. The number of moles of polyethylene glycol to be used can be any polyethylene glycol listed in the Japanese Cosmetic Cosmetic Ingredients Collection, but is preferably 4000 to 100,000, more preferably 4,000 to 20,000.

The anionic surfactant and / or nonionic surfactant to be used next is not particularly limited, but is preferably sodium α-olefin sulfonate, sodium lauryl sulfate, sodium cetyl sulfate, sodium polyoxyethylene lauryl sulfate. Lauryl disodium sulfosuccinate, sodium polyoxyethylene oleyl ether phosphate, polyoxyethylene sorbitan monolaurate, polyoxyethylene lauryl ether, sodium polyoxyethylene alkyl ether acetate, polyoxyethylene hydrogenated castor oil, polyoxyethylene polyoxy Propylene cetyl ether, oxyethylene oxypropylene block polymer, polyoxyethylene oleyl ether, acyl methyl taurate sodium salt, polyoxyethylene Phenyl ether, good to formulate in combination with polyethylene glycol of at least one or more of coconut oil fatty acid ethyl ester sulfonate, sodium 0.01 to 15 wt%, preferably, 0.1 to 10 wt%
Good blending amount.

Next, as a polyethylene glycol blocking inhibitor, one or both of a starch hydrolyzate and / or a silicic acid compound is used in an amount of 0.01 to 30% by weight, preferably 0.1 to 20% by weight.
% By weight.

As the starch hydrolyzate used here, dextrin and cyclodextrin are preferable, and as the silicate compound, silicic anhydride and magnesium aluminate metasilicate are preferable.

Next, the enzyme is added in an amount of 0.01 to 10% by weight, preferably 0.1 to 5% by weight.
To be included. The enzyme used here can be used as long as it is an enzyme that decomposes dirt on the skin surface.However, if it is a proteolytic enzyme, it can be used for proteolytic enzymes of plant, microbial, and animal origin. Enzymes are preferred, and ASP protease, B.sub protease, and actinomycetes protease are more preferred. As the lipolytic enzyme, a lipolytic enzyme of microbial origin is preferred. As a complex enzyme, pancreatin is preferred. With the above configuration, it is possible to obtain a bath agent composition that solves the above problems, but the production method is not particularly limited as long as each component is uniformly dispersed in the final product. good. Further, by using the bath agent composition having the above-mentioned components together with the bath equipment, it is possible to further promote the effects of the bath equipment.

In addition, the above-mentioned bath agent composition can be appropriately compounded with a base and / or active ingredient of a conventionally used bath agent, a fragrance, a dye, and the like, if necessary.

<Operation> With the configuration described above, the present invention has the following operation.

a) By blending polyethylene glycol with an anionic surfactant and / or a nonionic surfactant, the skin irritation of a conventional polyethylene glycol-containing bath agent is reduced.

b) By blending a starch hydrolyzate and / or a silicic acid compound as an anti-blocking agent for polyethylene glycol, a bath agent composition having excellent stability at high temperatures and / or high humidity can be obtained, and the distribution conditions can be relaxed. Thus, the quality over time can be guaranteed.

c) By blending the enzyme into the bath composition, a better cleaning property than the conventional bath composition can be obtained.

d) By using the bath agent composition according to the present invention in combination with bath equipment, good foaming, good foam removal, and fine foaming can be achieved. Promote or promote the massage effect.

e) The conventional polyethylene glycol-containing bath agent required 50% by weight or more of polyethylene glycol to obtain a sufficient foaming effect, but the bath agent according to the present invention has a polyethylene glycol content of less than 50% by weight. The content may be 50% by weight or less, preferably 30% by weight or less, which makes it possible to obtain a bath agent at a lower cost than conventional ones.

f) The conventional polyethylene glycol-containing bath agent required 50% by weight or more of polyethylene glycol to obtain a sufficient foaming effect, but the bath agent according to the present invention has a polyethylene glycol content of less than 50% by weight. The content may be 50% by weight or less, preferably 30% by weight or less, and it is possible to dissolve quickly when put into bath water.

<Examples> Hereinafter, the present invention will be described in more detail based on examples.

In the bath agent composition containing polyethylene glycol, a comparison was made between the bath agent composition according to the present invention and a conventional bath agent composition in terms of physical stability at high temperature and / or high humidity [Example 1], skin irritation Comparison of (safety) [Example 2], comparison of warm bath effect, cleaning effect, massage effect, foaming, and foam removal by using together with bath equipment [Example 3] Comparison of solubility in bath water [Example] 4) was evaluated.

Hereinafter, the results are shown for each example. However, the present invention is not limited to these examples, and similar results can be obtained with the above-mentioned bath agent composition according to the present invention.

[Example 1] With respect to the bath agent compositions shown in Table 1, each of the bath agent compositions was filled in a predetermined container and 100 pieces were sealed, and then sealed at room temperature and 40 ° C.
Fifty bottles were stored under each of two storage conditions of 70 ° C. and 70% humidity, and the anti-blocking effect of polyethylene glycol was visually judged. Table 2 shows the results. It is clear from Table 2 that the product of the present invention is superior to the conventional product in physical property stability at high temperature and / or high humidity. This is because the starch hydrolyzate and / or silicate compound adhere to the surface of the polyethylene glycol molecule by blending the starch hydrolyzate and / or silicate compound, and the polyethylene glycol is aggregated by melting the polyethylene glycol due to high temperature and high humidity. (blocking)
Can be prevented.

[Example 2] With respect to the bath compositions shown in Table 3, the bath composition was used at a concentration 5 times that of the usual use concentration "20 to 25 g was dissolved well in a home bath tub 180 to 200 and bathed therein". Per liquid
A 24-hour closed batch test was performed. In the experiment, a certain amount of the sample was dropped on each spot, immediately attached to the inner part of the upper arm of the subject, and removed after 24 hours. 1 hour, 24 hours, 48 after removal
The local state after time was evaluated according to the following evaluation criteria, and the results are shown in Tables 4 and 5. As is clear from Tables 4 and 5, the bath composition according to the present invention has
It is clear that it is superior to the conventional product. This means that the skin irritation of polyethylene glycol or a surfactant is reduced due to the reduced amount of polyethylene glycol and the skin protection effect of the starch hydrolyzate.

〔Evaluation criteria〕

-: No reaction ++: Erythema and edema or erythema and papule ±: Weak erythema +++: Those with small vesicles +: Erythema +++++: Those with large vesicles or erosions [Example 3] With respect to the bath agent compositions shown in Table 6, compressed air was inserted into the bath water, and a practical use test was conducted using N = 50 in combination with a bath apparatus configured to foam and circulate. Was. Table 7 shows the results. It is apparent from Table 7 that the product of the present invention is superior to the conventional product in the effects of warm bath, washing, massage, foaming and foam removal. This is because of the synergistic effect of polyethylene glycol and surfactant, fine foaming becomes possible, and the generation of this fine foam stimulates the skin surface, expands the extinguishing blood vessels and promotes the warm bath effect, In addition, the fine foam promotes the massage effect. In addition, by containing the enzyme, in addition to the physical cleaning of the foam, it is possible to promote the cleaning effect by facilitating the removal of dirt. Furthermore, it is clear that the foam can be quickly removed after the bath equipment is stopped.

[Example 4] With respect to the bath agent compositions shown in Table 8, a solubility test at the time of adding bath water was confirmed using a monitor of N = 50. The bath agent composition was prepared by adding 20 g to about 200 hot water, and the temperature of the bath water was set to 40 ° C. Table 9 shows the results. It is clear from Table 9 that the product of the present invention is superior in solubility to the conventional product.

<Effects of the Invention> As described above, according to the present invention, it has a non-blocking property that cannot be obtained with a conventional bath preparation mainly composed of polyethylene glycol, has no skin irritation, and has good foam removal. In addition to being excellent in the washing effect at the time of bathing, when used in combination with a bathing device, it has the effect of sufficiently promoting and promoting the effects of the bathing device, such as foaming and washing.

Claims (2)

(57) [Claims] 1. A bath agent composition which does not simultaneously contain both carbonate and an organic acid in an amount for foaming by an acid-base reaction, contains polyethylene glycol as a foaming component, and promotes foaming by bath equipment. A polyethylene glycol, an anionic surfactant and / or
Alternatively, a bath composition comprising a nonionic surfactant and a starch hydrolyzate and / or a silicate compound. 2. The bath composition according to claim 1, further comprising an enzyme.