JP2984105B2 - Soft capsule manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a soft capsule-type bath preparation having good solubility, and more particularly to a soft capsule-type bath preparation for improving the solubility. A stable soft capsule-type bath agent that does not impair the strength of the product or leaks out of the bath agent over time because the bonded portion of the film is thick and uniform even if the film is thinned.
The present invention relates to a soft capsule manufacturing apparatus capable of manufacturing a soft capsule.

[0002]

2. Description of the Related Art Generally, when one or two tablets are put into a bath, a bath based on a water-soluble polymer such as gelatin dissolves in the bath water to release the contents of the bath additive, thereby providing a beautiful skin and a moisturizing effect. The soft capsule type bath preparation of the present invention is characterized in that it is easy to quantify the amount used at one time, that it can be put into a bathtub as it is without breaking the packaging, that it has beautiful skin such as jojoba oil, olive oil, vitamin E, etc. It is excellent in that oils and fats and various fragrance ingredients that provide a moisturizing effect can be blended as they are without powdering, especially for elderly people who expect to supply sebum to the skin, and for the fragrance effect body-treatment effect. Women who expect it are gaining popularity.

However, since the current soft capsule type bath agent has insufficient solubility of the film, it takes about 8 to 10 minutes from the release of the content bath agent to the complete dissolution of the film after being poured into bath water. However, this sometimes hindered the usability. Conventionally, a soft capsule-type bath agent is produced as follows.
(FIG. 11) (JP-B-61-12698) That is, a coating solution based on gelatin or the like is heated to a solution state, which is cooled and gelled, and a film 1 formed into a film is formed into a pair. The cylindrical molding die 2 that is engaged and rotated is fed in a narrower space than both sides. Reference numeral 3 denotes a pump housing in which the content liquid 4 is stored, and a piston 5 interlocking with the cylindrical molding die 2 presses the content liquid 4 between the pair of film-like films 1 on both sides. At this time, the film-like film 1 is heated to an appropriate temperature by the pump housing 3, so that the capsule body 6 is heat-sealed by pressing the convex teeth formed on the surface of the cylindrical molding die 2 and the teeth. Is molded.

When manufactured by the above-mentioned conventional apparatus, the film-like film 1 is cut while being pulled in the rotation direction of the cylindrical mold 2 as shown in FIG. adhesive portion 8 for the thickness of the bonding portion 8 and 9 the adhesive portion 8, the film-like coating one particular capsule upper side not fixed is cut while being pulled downwards, as shown in 13 is locally thinned There are many things. Experience has shown that the thickness of the bonded parts (8, 9) is at least 0.1 mm when dry.
Otherwise, it is known that there is a high possibility of causing leakage of the bath salt content with time, so that the thickness of the bonding portion (8, 9) should be at least 0.1 mm at the time of manufacturing the soft capsule bath bath agent. It is necessary to set the thickness of the film-like film so as to be as described above. Considering that the above-mentioned bonded portions (8, 9) are locally thinned, the thickness of the film-like film 1 at the time of filling is set to 0.1. The ratio of the coating weight to the total weight of the capsule of the soft capsule type bath agent, that is, the coating ratio exceeds 10%, and the coating thickness is 0.2 m
m, but the film could not simply be thinned in order to improve the solubility of the soft capsule-type bath agent in the bath water.

Various techniques have been proposed as a technique for improving the solubility of soft capsules for pharmaceuticals and health foods. For example, a method of adding a polypeptide to gelatin for forming a film (Japanese Patent Publication No. 60-9011) or a method of similarly 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 non-gelling polypeptide as a component of the film.
Also, in the latter method, the strength of the soft capsules produced together decreases because gelatin is hydrolyzed by acid. Soft capsule type baths are often large in size compared to soft capsules intended 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. Since the possibility of inducing capsule breakage and leakage of contents during the production or transportation of the capsule becomes high, conventional techniques proposed for these ordinary soft capsules cannot be adopted.

[0006]

The problem to be solved by the present invention is to provide a soft capsule-type bath preparation which has sufficient strength and is capable of cracking capsules and leaking contents during production or transportation. There is no concern about this, and the point is that the solubility when poured into bath water is significantly improved as compared with conventional products.

[0007]

The capsule manufacturing apparatus of the present invention described below is not limited to the use of a soft capsule type bath preparation, but has other filling contents. Of course, it is also used for the production of soft capsules. First, a description will be given based on FIGS. P is a rotary-type automatic soft capsule manufacturing machine main body according to the present invention.
A plurality of independent annular main teeth 12 having concave molds 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 between the main tooth body 12 and the main tooth body 12 in a convex shape. The tooth height h is 50% to 100% of the tooth height H of the main tooth body 12. The degree is preferred. That is, h = 50-100 × H (%). Usually, the 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 values are good 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 sub-tooth bodies 13A independently surround each of the main tooth bodies 12 in an annular manner (independent state). The annular sub-tooth body 13A wraps around the main tooth body 12 in a single manner, but may surround the main tooth body 12 in a double, triple,..., Or the annular shape may be other than circular. Then
In the case of FIG. 3 described above, only one 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 auxiliary tooth bodies 13A are formed. .

In the present invention, the film-like film F which is pulled in the rotational direction by the cylindrical molding die 20 has a convex sub-tooth (formed between the main teeth 12 as shown in FIGS. 4 and 8). 13, 13A), while being pressed into the bonding surface by the convex main tooth body 12 for punching, the bonding portion seen in the conventional method is not locally thinned, and has a uniform thickness. Bonding portions (14, 1 shown in FIG. 9)
5) is obtained. For this reason, in the conventional method, at the time of filling, the bonding thickness becomes 0.9 mm or more.
In the present invention, the thickness of the film-like film set to m or more can be set to an arbitrary thickness of less than 0.9 mm.

However, the appropriate film thickness t at the time of production shown in the present invention is 0.4 mm to 0.7 mm. The so-called film ratio is 4% to 8%. In this case, encapsulation is possible even if the film-like film thickness is 0.4 mm or less, in other words, the film ratio at the time of the product 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 improvement in solubility intended by the present inventors cannot be sufficiently achieved. . At the time of manufacture, the thickness of the film-like film is 0.4 mm
The soft capsule type bath agent adjusted to ~ 0.7 mm has a coating rate of 4% to 8% at the time of the product, and the film thickness of the soft capsule type bath agent as the product Q of the present invention is 0.2 mm or less. be able to.

[0011]

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 form an aqueous solution.
After deaeration in vacuum, the mixture was placed in a heat-retaining pot maintained at 60 ° C. to obtain a film for a soft capsule type bath agent. (2) Using the rotary automatic soft capsule manufacturing machine main body P of the present invention shown in FIGS. 1 to 5, the coating agent of (1) is cooled and gelled to form a 0.5 mm thick film-like film. A bath oil containing a surfactant as a main component was encapsulated and formed by a conventional method to obtain a round 160-type soft capsule-type bath agent having an internal capacity of 8 g.

Comparative Example (1) A coating agent was prepared in the same manner as in Example (1) except that the amount of purified water in Example (1) was changed to 70 kg. (2) JP-B-61-12698 shown in FIG.
The gelling agent of Comparative Example (1) was cooled and gelled to form a film having a thickness of 0.9 mm using a rotary type automatic soft capsule manufacturing apparatus of (1), and the same bath oil as in Example (2) was applied by a conventional method. Encapsulation molding was performed to obtain a round 160 type bath agent having an internal capacity of 8 g.

Evaluation Examples (1) Measurement of Adhesive Thickness FIG. 1 shows the center part of the soft capsule-type bath preparations of Examples and Comparative Examples.
It cut | disconnected like 0, and measured the thickness of each part of A-D with a stereoscopic microscope. At this time, A and B indicate the bonding parts, and C
And D indicate a film portion. The results are shown in Table 1. n = 1
The meaning of 0 means that ten capsules of the same kind were employed, and each test was performed ten times in total.

[0014]

[Table 1]

As shown in Table 1, the soft capsule type bath preparation of the example had a thicker adhesive portion and a thinner film portion as compared with the comparative example.

(2) Dissolution test Pour 800 ml of hot water into a 1 liter beaker, 37 ± 1
C., and the soft capsule-type bathing agents of Examples and Comparative Examples were placed therein, and the magnetic stirrer having a diameter of 8 mm and a length of 2.5 cm with a magnetic stirrer M41 manufactured by Yamato Chemical Co., Ltd. was rotated at the maximum speed ( (About 1000 rpm) and stirred. At this time,
The time when the soft capsule type bathing agent began 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 dissolving time. Table 2 shows the results.

[0017]

[Table 2]

As shown in Table 2, the opening time of the soft capsule type bathing agent of the example was equivalent to that of the comparative example, but the time required for dissolution was 1/3 or less.

(3) Strength Measurement The pressure applied to the soft-capsule type bath preparations of Examples and Comparative Examples when the bath preparations were compressed and ruptured was measured as breaking strength (kg) using a Kiya type hardness tester. Table 3 shows the results.

[0020]

[Table 3]

According to the above evaluation examples, the soft capsule-type bath preparation of the present invention was not inferior in strength in spite of dissolving more than three times faster than the conventional soft capsule-type bath preparation.
In addition, it was suggested that the storage stability was improved as compared with the conventional product because the local thinness of the adhesive portion causing the leakage of the liquid content with time was not observed.

[0022]

As described above, in the present invention, as compared with the conventional soft capsule-type bath preparation, the solubility when the product is put into bath water without significantly impairing the strength and storage stability of the product is remarkably improved. I was able to.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a cylindrical mold according to the present invention.

FIG. 3 is an enlarged cross-sectional view taken along a line XX of FIG. 2;

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

FIG. 5 is an enlarged explanatory view showing a relationship between tooth heights of a main tooth body and an auxiliary tooth body.

FIG. 6 is a perspective view of a cylindrical mold according to another embodiment.

FIG. 7 is an enlarged sectional view taken along line YY of FIG. 6;

FIG. 8 is an enlarged longitudinal sectional front view of a main part showing a relationship between a main tooth body and an auxiliary tooth body in FIG. 7;

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

FIG. 10 is an enlarged vertical sectional front view of the product of the present application, showing a portion for measuring an adhesive thickness and a 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 ... Concave mold 12 ... Main tooth body 13 ... Secondary tooth body 13A ... Secondary tooth body Q: Product of the present invention

Claims (4)

(57) [Claims] 1. A soft capsule manufacturing apparatus in which a plurality of main teeth are formed on the surface of a cylindrical molding die, and sub-teeth are continuously formed between the main teeth. 2. A soft capsule manufacturing apparatus in which a plurality of main teeth are formed on a surface of a cylindrical molding die, and auxiliary teeth are formed independently around the main teeth. 3. The soft capsule manufacturing apparatus according to claim 1 , wherein the tooth height h of the sub-tooth is 50 to 100% of the tooth height H of the main tooth. 4. An apparatus for producing a soft capsule according to claim 2 , wherein said auxiliary teeth are formed in a double triple.