JPS58105910A - Solid bath composition - Google Patents

Abstract

PURPOSE:A solid bath composition, prepared by incorporating to a raw material and solidifying the resultant mixture stably and easily without deteriorating the component, and inhibiting the reaction and decomposition during the storage thereof without adversely affecting the human body, e.g. skin roughening. CONSTITUTION:A solid bath composition containing a raw material for the bath, particularly a foamable bath composition or bath composition containing an enzyme, and 30-70wt% polyethylene glycol (PEG). There is no fear in the composition of causing any reaction and decomposition during the storage thereof completely since the bath components, e.g. a foaming agent or enzyme, present in the raw material for the bath are wrapped separately in PEG and inhibited contact with the outside air. PEG having 950-3,700 average molecular weight or a mixture of PEG having various molecular weights may be preferably used after adjusting the average molecular weight of the mixture to said range, and the freezing point thereof is preferably 30-58 deg.C.

Description

[Detailed description of the invention] The present invention relates to solid bath agent compositions.

Bath additives are generally available in powder, granule, and liquid forms. However, in the case of powders and aS bath additives, the production of so-called dust scattering is unavoidable, which is an unavoidable industrial disadvantage. On the other hand, liquid bath additives do not have the disadvantage of dust scattering, but they do have the disadvantage of being too heavy.Powders, granules, and liquids are all bulky, so they are difficult to handle at the packaging and distribution stages. Those skilled in the art are equally keenly aware of the inconvenience and inconvenience caused.

Therefore, the present inventor has conducted various researches in order to solve these conventional drawbacks by providing a solid bath agent, and has found that if polyethylene glycol (hereinafter referred to as PICG) is blended, The inventors of the present invention have discovered the surprising fact that they can be stably and easily molded at room temperature without altering the bath additive components, and that the resulting solid bath additives do not have any adverse effects on the human body such as skin irritation. It has been completed... Therefore, the present invention is a solid bath agent composition comprising polyethylene glycol added to the bath agent raw materials.

The bath agent raw materials in the present invention may be of any type as long as they can be used as bath agents, but in particular, materials that are sensitive to atmospheric moisture, such as foaming bath agent compositions and enzyme-containing bath agent compositions, may be used. ]
This is most effectively carried out in the case of bath agent compositions containing components that easily react and decompose.

In general, effervescent bath additives are a mixture of basic inorganic compounds such as bicarbonate, sodium sesquicarbonate, acidic compounds such as tartaric acid and citric acid, and sodium chloride salts such as mirabilite and borax. , they react with each other in bath water and C
O.

Although it generates gas bubbles, it has the disadvantage that it naturally reacts with moisture in the atmosphere during storage and loses its foaming properties.9.

Therefore, conventionally, in order to improve such defects, moisture absorbing agents such as Glauber's salt and starch have been added, but the effects have been practically unrecognized.

In the case of enzyme-containing bath additives, the enzymes are highly hygroscopic and unstable in the atmosphere, so they should be placed in an airtight container and inorganic salts should be added to keep the enzymes in the most stable pH range of 6 to 8. In addition, although efforts have been made to maintain stability, the reality is that sufficient effects have not yet been obtained.

In this case, in the solid bath agent composition of the present invention, if foaming agents, enzymes, etc. are present in the bath agent raw materials, these foaming agents, enzymes, etc. are in a state of being encapsulated by PKGK. Since the bath agent components are isolated from each other and prevented from coming into contact with the outside air, reactions and decomposition during storage can be completely eliminated.

That is, when the present invention uses a foaming bath agent composition or an enzyme-containing bath agent composition as a raw material for a bath agent, it provides an excellent effect that can eliminate the above-mentioned drawbacks of the bath agent composition at once. It is something.

PICG used in the present invention has an average molecular weight of 950 to 37
00, or those in which PIG of various molecular weights are appropriately used in combination so as to obtain the average molecular weight value, and those having a freezing point of 30 to 58°C are preferable.

The amount of PIG to be blended varies depending on the bath additive components and the condition of the bath additive at the time of use, but blending in such a way that the content is 30 to 70% by weight will give the best results.

The solid bath agent composition of the present invention can be prepared, for example, by mixing the above-mentioned bath agent raw materials and PEG in a dry state, heating and dissolving the mixture, stirring it uniformly, pouring it into a mold, cooling and molding it, or by assimilating it. It is manufactured by stamping and twisting.

Next, the present invention will be explained in detail by giving test examples.

α) Skin irritation test For the bath salt samples of the present invention containing PICG for 30 s and 70 s, 50 household women (aged 25 to 50 years old) were used as a panel to evaluate skin irritation using Kawanami's sensory evaluation for each consecutive IO test. When tested, no skin irritation was observed.

Foaming test) 100 f of each sample was left in an environment with a relative degree of 85 °C and a temperature of 20 °C for 48 hours, and then put into water with a temperature of 40 °C and 500 CO to measure the amount of CO generated, the amount of gas, and the duration of gas generation. was measured.

The results are shown in Table 1.

Table 1 Description of samples Comparative product 1 is a powdered bath agent composition obtained by excluding PIG in the components of Example 1 described later, and products 1 to 5 of the present invention are obtained by excluding the PKGt-fi content in the components of Example 1 described later. This is the solid bath agent composition obtained. The average molecular weight of the nine PIGs used is shown in parentheses in the table.

As is clear from the above table, the bath additive composition of the present invention has a remarkable foaming effect compared to conventional bath additives.

(3) Enzyme activity test Each sample was stored in an environment with a relative humidity of 85°C and a temperature of 20°C, and the remaining rate of enzyme activity was measured by dissolving the sample in water 500114 at regular intervals.9. The results are shown in Table 2.

Table 2 Comparative product 2 is a powder bath agent composition obtained by excluding PIG from the components of Example 3 described later, and products 6 to 8 of the present invention are obtained by excluding PICG from the components of Example 3 described later. This is a solid bath agent composition. The tL pmG used had an average molecular weight of 4,000.

As is clear from the above table, the bath additive composition of the present invention has remarkable stability in enzyme activity compared to conventional bath additives.

The present invention will be further explained below with reference to Examples.

Example 1 Sodium bicarbonate 20t1 Sodium bitartrate 201.
PEG (3,700) 31f% mirabilite 20t1 borax 5t'
s Salt 2 f % Flavoring 1. Of.

Floretssen (coloring agent) 1. Mix Of in a dry state. The mixture is then heated and dissolved, and then stirred to make it uniform.

It becomes a viscous liquid at 60°C. Cool the bath agent composition obtained in this way while stirring so as not to lose its uniformity.
A foamable solid bath composition is obtained by pouring into a mold at 42° C. and cooling and molding, or after solidifying, molding at room temperature.

Example 2 Sodium bicarbonate 25t1 Sodium bitartrate 25F,
PEG (3,700) 44F, Glauber's Salt 3F, borax 2t, salt 0.5F, fragrance 0.4t.

A foaming bath agent composition is obtained in the same manner as in Example 1 except that 0.1 f of floretscen (coloring agent) is used as a component.

Example 3゜Proteolytic enzyme 1. Of, sodium bitartrate 20f1
Sodium bicarbonate 20t1 PKG (3,700) 30F% borax 5F, Glauber's salt 20t1
Salt 2fs Flavoring 1. Of, floretssen (coloring agent) i
An enzyme-containing solid bath composition was obtained in the same manner as in Example 1 using , or as the ingredients. .

that's all

Claims (1)

[Scope of Claims] L A solid bath agent composition comprising polyethylene glycol added to bath agent raw materials. 2. The solid bath agent composition according to claim 1, wherein the bath agent raw material is a foaming bath agent composition. 5. The solid bath agent composition according to claim 1, wherein the bath agent raw material is an enzyme-containing bath agent composition.