JPH0551315A - Soft capsule type bathing agent and device for producing soft capsule - Google Patents

Abstract

PURPOSE:To obtain a soft capsule type bathing agent having sufficient strength, no fear of cracks of capsule and leakage of contents during production and transportation, showing extremely improved solubility in feeding to a bathtub and a device for producing the bathing agent. CONSTITUTION:For example, gelatin and glycerol (e.g. in weight ratio of about 10:3) are heated and stirred with water into an aqueous solution to give a film- forming agent for soft capsule type bathing agent and the film-forming agent is cooled and gelatinized by using a main body P of a rotary type automatic capsule manufacturing machine into a film having 0.5mm thickness (namely thickness in production is 0.4-0.7mm and film formation ratio is 4-8%). A bath oil consisting essentially of a surfactant is coated and molded to give a bathing agent having <=0.2mm thickness of coating film of soft capsule type bathing agent of product Q. In producing the soft capsule type bathing agent, a cylindrical mold 20 having the surface provided with plural main toothed materials 12 and subsidiary toothed materials 13 between the main toothed materials or with the subsidiary toothed materials 13 in an independent state surrounding the main toothed materials 12 is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soft capsule type bathing agent having a good solubility and a soft capsule manufacturing apparatus. More specifically, in order to improve the solubility, the film of the soft capsule type bathing agent is thinned. Even though the adhesive portion of the film is thick and uniform, the present invention relates to a stable soft capsule type bathing agent and a soft capsule manufacturing apparatus which do not impair the strength of the product or leak the content bathing agent over time.

[0002]

2. Description of the Related Art Generally, when one or two tablets are added to a bath, the bath water dissolves a film based on a water-soluble polymer such as gelatin, releases the content of the bath agent, and provides a skin-beautifying and moisturizing effect. The soft capsule type bath agent is easy to quantify the amount used once, and can be put in the bath as it is without breaking the packaging. Also, it can be used for the beautiful skin of jojoba oil, olive oil, vitamin E, etc. It is excellent in that it can mix oils and fats that bring moisturizing effect and various fragrance ingredients as they are without powdering, especially for elderly people who expect to supply sebum to the skin, and aroma effect body treatment effect. It is very popular with the women who expect it.

However, since the current soft capsule type bathing agent does not have sufficient film solubility, it takes about 8 to 10 minutes after the content of the bathing agent is released after the bath agent is poured into the bath water until the film is completely dissolved. However, this may hinder the usability. Conventionally, a soft capsule type bath agent is manufactured as follows.
(Fig. 11) (Japanese Examined Patent Publication No. 61-12698) That is, a coating solution based on gelatin or the like is heated to a solution state, cooled and gelated, and a pair of coatings 1 formed into a film are formed. It is configured such that it is fed from both sides of a cylindrical molding die 2 which is engaged and rotated to a narrow space. Reference numeral 3 denotes a pump housing which stores the content liquid 4, and the content liquid 4 is press-fitted between the pair of film-like coatings 1 on both sides by a piston 5 which is interlocked with the cylindrical molding die 2. At that time, since the film-like film 1 is heated to an appropriate temperature by the pump housing 3, the capsule body 6 is heat-sealed by the convex teeth formed on the surface of the cylindrical molding die 2 and the pressure cutting of the teeth. Is molded.

When manufactured by the above conventional apparatus, the film-like film 1 is cut while being pulled in the rotational direction of the cylindrical molding die 2 as shown in FIG. As shown in 13, the thickness of the adhesive portions 8 and 9 is not constant, and particularly the adhesive portion 9 on the lower side of the capsule is cut while pulling the film-like film 1 downward, so that the adhesive portion 9 becomes locally thin. There are many things. Experience has shown that the thickness of the adhesive parts (8, 9) is at least 0.1 mm when dry.
It is known that if it is not above, there is a high possibility that the content of the bath agent will leak over time. Therefore, when manufacturing the soft capsule type bath agent, the thickness of the adhesive part (8, 9) should be at least 0.1 mm. It is necessary to set the thickness of the film-like coating so that the thickness of the film-like coating 1 at the time of filling is 0. It should be 9 mm or more, and the ratio of the coating weight to the total capsule weight of the soft capsule type bathing agent, that is, the coating rate exceeds 10%, and the coating thickness is 0.2 m.
Although it exceeds m, it was not possible to simply thin the film in order to improve the solubility of the soft capsule type bathing agent in the bath water.

Various methods have been proposed as a technique for increasing the solubility of soft capsules for pharmaceuticals and health foods. For example, there is a method of adding a polypeptide to gelatin forming a film (Japanese Patent Publication No. 60-9011) or a method of adding an organic acid such as tartaric acid or citric acid to gelatin. However, none of these techniques can be adopted for soft capsule type bath salts. This is because the former method adds a polypeptide that has no gelling ability as a component of the film,
The latter method is also because the gelatin is hydrolyzed by an acid, so that the strength of the soft capsule preparation produced together with the gelatin decreases. Soft capsule-type bath agents are often large-sized products compared to soft capsules for oral use such as pharmaceuticals and health foods, and the total weight of the capsules is as heavy as 2 g to 10 g, so the strength is insufficient. Since there is a high possibility of inducing capsule cracking and leakage of contents during manufacturing or transportation of the drug, the conventional techniques proposed for these ordinary soft capsules cannot be adopted.

[0006]

The problem to be solved by the present invention is that the strength of a soft capsule type bathing agent is sufficient, cracking of the capsule and leakage of the contents during manufacture or transportation etc. There is no need to worry about it, and the solubility when added to bath water is significantly improved compared to conventional products.

[0007]

The capsule manufacturing apparatus of the present invention described below is not limited to use for manufacturing a soft capsule type bathing agent, and has other filling contents. Of course, it is also used for manufacturing soft capsules. First, a description will be given with reference to FIGS. P is a rotary type automatic soft capsule manufacturing machine body according to the present invention, and the surface of the cylindrical molding die 20 is
A plurality of independent annular main tooth bodies 12 having a concave die 11 for punching soft capsules are appropriately arranged vertically and horizontally. 11A
Is a through hole. Reference numeral 13 denotes a sub tooth body (continuous state) formed in a convex shape between the main tooth body 12 and the main tooth body 12, and the tooth height h thereof is 50% to 100% of the tooth height H of the main tooth body 12. A degree is preferable. That is, h = 50 to 100 × H (%). Usually, this tooth height h is not particularly limited as long as it is equal to or less than the tooth height H, but the above numerical value is preferable in order to obtain a bonded portion having a uniform thickness.

Next, FIGS. 6 to 8 will be described. In the case of the cylindrical molding die 20 of this embodiment, the auxiliary tooth body 13A independently surrounds each main tooth body 12 in an annular shape (independent state). The ring-shaped auxiliary tooth body 13A surrounds the main tooth body 12 in a single layer, but may surround the main tooth body 12 in a double, triple, or the like, and the ring may have a shape other than a circle. Then,
In the case of FIG. 3 described above, only a single auxiliary tooth body 13 is formed between the main tooth body 12 and the main tooth body 12, but in the case of FIG. 7, a plurality of sub tooth bodies 13A are formed. ..

In the present invention, the film-like film F pulled in the rotational direction by the cylindrical molding die 20 is a sub-tooth body (convex shape) formed between the main tooth bodies 12 as shown in FIGS. 4 and 8. (13, 13A) is pressed into the adhesive surface while being pressed off by the convex main toothing 12 for punching, the adhesive part seen in the conventional method does not become thin locally and has a uniform thickness. Adhesive part (14, 1 shown in FIG. 9
5) is obtained. Therefore, in the conventional method, the adhesive thickness is 0.9 mm or more at the time of filling so that the adhesive thickness is 0.1 mm or more.
In the present invention, the film-like film thickness set to m or more can be set to any thickness less than 0.9 mm.

However, the film-like film thickness t in the proper manufacturing shown in the present invention is 0.4 mm to 0.7 mm. The so-called coating rate is 4% to 8%, and in this case, encapsulation is possible even when the film coating thickness is 0.4 mm or less, in other words, the coating rate at the time of production is 4% or less, This is because the strength and storage stability of the product may be impaired, and if the film thickness is 0.8 mm to 0.9 mm, the desired improvement in solubility cannot be achieved by the inventors. .. At the time of production, the film thickness of the film is 0.4 mm
The soft capsule type bath agent adjusted to ~ 0.7 mm has a film rate of 4% to 8% at the time of product, and the film thickness of the soft capsule type bath agent of the product Q of the present invention is 0.2 mm or less. be able to.

[0011]

EXAMPLES Next, the present invention will be specifically described with reference to Examples, Comparative Examples and Evaluation Examples. Example (1) 100 kg of gelatin, 30 kg of glycerin, and 95 kg of purified water were heated and stirred at 70 ° C. for 3 hours to prepare an aqueous solution.
After deaeration under vacuum, it was placed in a heat-retaining kettle kept at 60 ° C. to obtain a film agent for a soft capsule type bathing agent. (2) Using the rotary type automatic soft capsule manufacturing machine main body P of the present invention described above, the film forming agent of (1) is cooled and gelled.
After forming a film-like film with a thickness of 5 mm, a bath oil containing a surfactant as a main component is encapsulated by a conventional method to give a content of 8
g of round 160 type soft capsule type bath salt was obtained.

Comparative Example (1) A coating agent was prepared by the same formulation and method as in Example (1) except that the purified water in Example (1) was 70 kg. (2) Using the ordinary rotary type automatic soft capsule manufacturing apparatus shown in FIG. 11, the film-forming agent of Comparative Example (1) was cooled and gelled to form a film-like film having a thickness of 0.9 mm, and then a conventional method was used. Thus, the same bath oil as in Example (2) was encapsulated to obtain a round 160 type bathing agent having an internal capacity of 8 g.

Evaluation Example (1) Measurement of Adhesion Thickness FIG. 1 shows the center portion of the soft capsule type bath salts of Examples and Comparative Examples.
It cut like 0, and measured the thickness of each part of AD with a stereoscopic microscope. At this time, A and B indicate an adhesive portion, and C
Symbols D and D indicate the film portion. The results are shown in Table 1. n = 1
The meaning of 0 is that 10 capsules of the same kind were adopted and each test was conducted once, 10 times in total.

[0014]

[Table 1]

As shown in Table 1, the soft capsule type bath preparations of the examples had thicker adhesive parts and thinner film parts than those of the comparative examples.

(2) Dissolution test 800 ml of hot water was put into a 1 liter beaker and 37 ± 1.
The stirrer having a diameter of 8 mm and a length of 2.5 cm was rotated at maximum by using a magnetic stirrer M41 manufactured by Yamato Chemical Co., Ltd. The mixture was stirred at about 1000 rpm). At this time,
The time when the soft capsule type bathing agent started to release the content bathing agent was measured as the opening time, and the time until the film was completely dissolved was measured as the dissolution time. The above results are shown in Table 2.

[0017]

[Table 2]

As shown in Table 2, the soft capsule type bath agents of the Examples had the same opening time as that of the Comparative Example, but the time required for dissolution was 1/3 or less.

(3) Strength Measurement Using a Kiya type hardness tester, the pressure applied to the soft capsule type bath additives of Examples and Comparative Examples when they were compressed and ruptured was measured as the crush strength (kg). The results are shown in Table 3.

[0020]

[Table 3]

According to the above evaluation examples, the soft capsule type bathing agent of the present invention was not inferior in strength in spite of being three or more times faster than the conventional soft capsule type bathing agent.
In addition, it was suggested that the storage stability was improved as compared with the conventional product, because the adhesive part did not show a local thinness that would cause leakage of the content liquid over time.

[0022]

As described above, according to the present invention, compared with the conventional soft capsule type bath agents, the solubility when added to the bath water is significantly improved without deteriorating the strength and storage stability of the product. I was able to do it.

[Brief description of drawings]

FIG. 1 is a schematic overall view of a main body of a capsule manufacturing machine according to the present invention.

FIG. 2 is a perspective view of a cylindrical molding die of the present invention.

FIG. 3 is an enlarged cross-sectional view taken along the line XX of FIG.

FIG. 4 is an enlarged vertical sectional front view of a main part showing the relationship between the main tooth body and the sub tooth body of FIG. 3 of the present invention.

FIG. 5 is an enlarged explanatory view showing a tooth height relationship between a main tooth body and a sub tooth body.

FIG. 6 is a perspective view of a cylindrical molding die of another embodiment.

FIG. 7 is an enlarged sectional view of a portion taken along line YY of FIG.

FIG. 8 is an enlarged vertical sectional front view of a main part showing the relationship between the main tooth body and the sub tooth body in FIG.

FIG. 9 is an enlarged vertical front view of the product of the present application.

FIG. 10 is an enlarged vertical front view of the product of the present application, showing a portion for measuring the adhesive thickness and the film thickness.

FIG. 11 is an explanatory diagram of a conventional device.

FIG. 12 is an enlarged vertical sectional front view of a main part of a conventional device.

FIG. 13 is an enlarged vertical sectional front view of a conventional product.

[Explanation of symbols]

 20 ... Cylindrical molding die 11 ... Recessed mold 12 ... Main tooth body 13 ... Sub tooth body 13A ... Sub tooth body Q ... Product of the present invention

Claims (6)

[Claims] 1. A soft capsule type bath agent, wherein the ratio of the coating weight to the total capsule weight of the soft capsule type bath agent is 4% or more and 8% or less. 2. A soft capsule type bathing agent having a film thickness of 0.2 mm or less when manufactured. 3. A soft capsule manufacturing apparatus in which a plurality of main tooth bodies are formed on the surface of a cylindrical molding die and auxiliary tooth bodies are continuously formed between the main tooth bodies. 4. A soft capsule manufacturing apparatus in which a plurality of main tooth bodies are formed on the surface of a cylindrical molding die and auxiliary tooth bodies are formed in an independent state so as to surround the main tooth bodies. 5. The soft capsule manufacturing apparatus according to claim 3, wherein the tooth height h of the auxiliary tooth body is 50 to 100% of the tooth height H of the main tooth body. 6. The soft capsule manufacturing apparatus according to claim 4, wherein the auxiliary tooth body is formed in a double triple structure.