JP2000342609A - Pseudo-mamma and formation method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pseudo-mamma having the feel of a material close to that of a real mamma and providing excellent manufacturing efficiency. SOLUTION: A main component of material of a pseudo-mamma 10 is made of a component in which water-added styrene-isoprene-butadiene block copolymer and liquid paraffin which is a plasticizer are mixed. This material has elasticity at least five times, and its hardness is 20 deg. or less according to JIS Shore A. Since such material is used, the pseudo-mamma which has not only softness but also excellent repulsion and elasticity is obtained, and the feel of a material very close to that of a real mamma is obtained. Moreover, it is unnecessary to hold a shape by covering it with a film because it is a solid. Furthermore, a person wearing this pseudo-mamma does not have uncomfortable feeling when she wears it because it is not sticky.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulated breast and a breast assist device.

[0002]

2. Description of the Related Art Pseudo-breasts and breast assist devices are used by women who have undergone surgery for breast cancer. At present, silicone sol is used for most of the simulated breasts and breast assistive devices. At present, there is only silicon sol to realize the softness of a real breast. Since silicon sol is in a sol state, it is used in a thin urethane film bag.

[0003]

However, since the silicon sol is covered by the urethane film,
There is a problem that the surface is rough and wrinkles are noticeably increased. It is also soft and less elastic than a real breast. Further, there is a problem that the urethane film is easily broken.

In order to produce a product, a mixture of a silicone resin and a curing agent is injected into a bag-like urethane film. At this time, if a large amount of the curing agent is added, the curing time is shortened, but a relatively hard one is produced. Therefore, it is necessary to cure slowly so as not to add too much curing agent. Otherwise, something close to a real breast cannot be obtained. However, since a curing time of about 8 to 12 hours is required, the production efficiency is very poor.

[0005] Therefore, there has been a demand for a pseudo-breast and a breast assisting device which has a texture close to that of a real breast and has good production efficiency.

[0006]

Therefore, according to the pseudo-breast of the invention according to the present invention, a material having a stretchability of at least 5 times and a hardness of 20 ° or less in JIS Shore A is used. It is characterized by.

The use of such a material provides not only softness but also excellent rebound resilience and a texture very close to that of a real breast.

[0008] In the simulated breast of the present invention, it is preferable that the material does not require a coating for maintaining the shape and preventing surface stickiness.

With such a material, there is no stickiness and a dry touch can be obtained, so that no unpleasant sensation is caused at the time of mounting.

[0010] In the simulated breast of the present invention, preferably, the main component of the material is a composition in which a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer are mixed.

The composition obtained by mixing the hydrogenated styrene isoprene butadiene block copolymer and the plasticizer contained in the simulated breast has a very low hardness, for example, a JIS Shore A of 1 ° or less can be realized. . Therefore, the same degree of softness as a real breast can be obtained. In addition, since this material is an elastomer, it has a high rebound resilience, and immediately returns to its original shape even when stress is applied. For example, this material has a stretch of 15 times or more. Therefore, a pseudo-breast made of a material containing this composition as a main component has extremely high elasticity and flexibility.

Further, the material containing this composition as a main component is solid and has no tackiness. Therefore, unlike the case of the silicon sol, a coating (urethane film) for maintaining the shape and preventing surface tackiness is not required.

Further, since this material has poor thermal conductivity, it does not remove heat from the human body even when it comes into direct contact with the skin. Therefore, when the pseudo breast is worn, it does not feel cold.

A composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer is odorless. Therefore, the pseudo-breast of the present invention does not cause discomfort due to rubber odor and the like.

Since this composition is a transparent resin (elastomer), it can be colored freely.

Further, a product formed from this composition can be easily cut with scissors or the like, and can be adjusted to a desired size.

In the simulated breast of the present invention, the plasticizer is preferably a paraffin plasticizer. In particular, the plasticizer is preferably liquid paraffin.

The weight ratio of the hydrogenated styrene isoprene butadiene block copolymer is preferably in the range of 1% to 20%.

On the other hand, the material used for the simulated breast of the present invention may be a composition in which the main components are a mixture of a styrene-ethylene-butylene-styrene copolymer and a plasticizer.

The composition obtained by mixing the styrene-ethylene-butylene-styrene copolymer (SEBS polymer) and the plasticizer contained in the pseudo breast has extremely high elasticity and flexibility (JIS Shore A: 1 ° or less and 15 times). It has the above elasticity.). Further, since it is solid, has no tackiness, and has poor thermal conductivity, it does not deprive the human body of heat even when it comes into direct contact with the skin. Moreover, since it is odorless and is a transparent resin, it can be colored freely. Further, the product formed from this composition can be easily cut with scissors or the like, and can be adjusted to a desired size.

In the simulated breast of the present invention, the plasticizer is preferably a paraffin plasticizer. In particular, the plasticizer is preferably liquid paraffin. Also, SE
The weight ratio of the BS polymer is preferably in the range of 1% to 20%.

The pseudo-breast of the present invention preferably has a substantially hemispherical bowl-shaped portion, and the bowl-shaped portion has
Protrusions imitating nipples are provided as needed.

By forming a shape close to the real thing as described above,
A more simulated breast is obtained.

In this pseudo breast, a cavity is preferably formed inside the bowl-shaped portion.

When the cavity is formed as described above, the weight can be reduced.

The pseudo-breast according to the present invention is preferably formed by any one of an injection molding method, a casting molding method and a slash molding method.

The simulated breast of the present invention is manufactured by injecting, pouring, or extruding a material into a space formed inside a mold such as a mold. It is possible to take any shape and thickness. For this reason, the pseudo-breast of the present invention can be formed into various shapes, and the thickness can be easily changed depending on the location.

Next, according to the method for forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo-breast as a system plasticizer by an injection molding method, the raw material is injected from a heated composition into a space formed in a mold of the pseudo-breast to be formed and molded. It is characterized by.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the internal space of the mold.

According to another method of forming a pseudo-breast according to the present invention, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and the plasticizer is used In forming a pseudo-breast as a paraffin plasticizer by an injection molding method, a raw material obtained by heating the composition is injected into a space formed in a mold of the pseudo-breast to be formed and formed. And the heating temperature during molding of the composition is set to a temperature in the range of 140 ° C. to 260 ° C.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the internal space of the mold. At this time, the heating temperature at the time of molding the composition is preferably set to a temperature in the range of 140 ° C to 260 ° C.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a pseudo-breast with a paraffin plasticizer by injection molding, the raw material obtained by heating the composition is injected into a space formed in the mold of the pseudo-breast to be formed. And the injection pressure at the time of molding the composition is 40 kg / cm ^{2 to} 50 kg.
/ Cm ² .

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the interior space of the mold. At this time, the injection pressure at the time of molding the composition was 40 kg / cm ^{2 to} 5 kg.
It is preferable to set the pressure within the range of 0 kg / cm ² .

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a pseudo-breast with a paraffin plasticizer by injection molding, the raw material obtained by heating the composition is injected into a space formed in the mold of the pseudo-breast to be formed. The heating temperature at the time of molding the composition is set to a temperature in the range of 140 ° C. to 260 ° C., and the injection pressure at the time of molding the composition is 40 kg / c.
The pressure is in the range of m ^{2 to} 50 kg / cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In this case, the heating temperature during molding of the composition along with a temperature in the range of 140 ° C. to 260 ° C., a pressure in the range of injection pressure during molding of 40Kg / cm ² ~50Kg / cm ² of the composition It is preferred to do so.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a pseudo-breast with a paraffin-based plasticizer by a casting method, the raw material is heated using the heated composition as a raw material, and is poured into a space formed in a mold of the pseudo-breast to be formed and molded. It is characterized by the following.

As described above, since the raw material is poured into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed.

According to still another method for forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a pseudo-breast with a paraffin plasticizer by a casting method, in the space formed in the mold of the pseudo-breast to be formed,
The method is characterized in that a cavity-forming member is provided, a raw material obtained by heating the composition is poured into a space formed in a mold to form the cavity-forming member, and the cavity-forming member is extracted.

As described above, since the raw material is poured into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In addition, when the raw material is poured, since a cavity forming member is provided in the inner space of the mold, a pseudo breast having a cavity formed therein is formed. Therefore, the weight of the simulated breast can be reduced. In addition, since the raw material of the simulated breast is rich in elasticity, holes formed on the surface after the cavity forming member has been extracted are inconspicuous.

According to still another method for forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo-breast as a system plasticizer by an injection molding method, the raw material is injected from a heated composition into a space formed in a mold of the pseudo-breast to be formed and molded. It is characterized by.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the internal space of the mold.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo-breast as a system plasticizer by injection molding, the raw material obtained by heating the composition is formed by injecting into a space formed in a mold of the pseudo-breast to be formed, And a heating temperature at the time of molding the composition is set to a temperature within a range of 140 ° C to 220 ° C.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the internal space of the mold. At this time, the heating temperature at the time of molding the composition is preferably set to a temperature in the range of 140 ° C to 220 ° C.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo-breast as a system plasticizer by injection molding, the raw material obtained by heating the composition is formed by injecting into a space formed in a mold of the pseudo-breast to be formed, And the injection pressure at the time of molding the composition is 40 kg / cm ^{2 to} 50 kg / cm ^2.
The pressure is within the range described above.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the internal space of the mold. At this time, the injection pressure at the time of molding the composition was 40 kg / cm ^{2 to} 5 kg.
It is preferable to set the pressure within the range of 0 kg / cm ² .

According to still another method for forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo-breast as a system plasticizer by injection molding, the raw material obtained by heating the composition is formed by injecting into a space formed in a mold of the pseudo-breast to be formed, The heating temperature at the time of molding the composition is set to a temperature in the range of 140 ° C. to 220 ° C., and the injection pressure at the time of molding the composition is set to 40 kg / cm ^{2 to} 5 kg.
It is characterized in that the pressure is in the range of 0 kg / cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In this case, the heating temperature during molding of the composition along with a temperature in the range of 140 ° C. to 220 ° C., a pressure in the range of injection pressure during molding of 40Kg / cm ² ~50Kg / cm ² of the composition It is preferred to do so.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo breast as a system plasticizer by casting method,
Using the heated composition as a raw material, the raw material is poured into a space formed in a mold of the pseudo breast to be formed and molded.

As described above, since the raw material is poured into the space formed inside the mold, it is possible to form a pseudo breast having a free shape corresponding to the shape of the interior space of the mold.

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo breast as a system plasticizer by casting method,
In the space formed in the mold of the pseudo breast to be formed, a cavity forming member is provided, and the raw material obtained by heating the composition is poured into the space formed in the mold to form the cavity, and the cavity is formed. It is characterized in that the forming member is extracted.

As described above, since the raw material is poured into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In addition, when the raw material is poured, since a cavity forming member is provided in the inner space of the mold, a pseudo breast having a cavity formed therein is formed. Therefore, the weight of the simulated breast can be reduced. In addition, since the raw material of the simulated breast is rich in elasticity, holes formed on the surface after the cavity forming member has been extracted are inconspicuous.

Next, according to the breast assisting device of the invention according to the present application, a material is used which has at least five times the elasticity and a hardness of 20 ° or less in JIS Shore A. .

Since such a material is used, not only softness but also rich rebound resilience and a texture very close to that of a real breast can be obtained.

In the breast assisting device of the present invention, it is preferable that the material does not require a coating for maintaining the shape and preventing surface tackiness.

With such a material, there is no stickiness and a dry touch can be obtained, so that there is no discomfort at the time of mounting.

In the breast assisting device of the present invention, preferably, the main component of the material is a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer.

The composition obtained by mixing the hydrogenated styrene isoprene butadiene block copolymer and the plasticizer contained in this breast assisting device has a very low hardness. For example, JIS Shore A can realize 1 ° or less. it can. Therefore, the same degree of softness as a real breast can be obtained. In addition, since this material is an elastomer, it has a high rebound resilience, and immediately returns to its original shape even when stress is applied. For example, this material has a stretch of 15 times or more. Therefore, a breast assisting device made of a material containing this composition as a main component has extremely high elasticity and flexibility.

Moreover, the material containing this composition as a main component is solid and has no tackiness at all. Therefore, unlike the case of the silicon sol, a coating (urethane film) for maintaining the shape and preventing surface tackiness is not required.

Further, since this material has poor thermal conductivity, it does not deprive the human body of heat even when it comes into direct contact with the skin. Therefore, when wearing this breast assisting device, it does not feel cold.

The composition obtained by mixing the hydrogenated styrene isoprene butadiene block copolymer and the plasticizer is odorless. Therefore, the breast assisting device of the present invention does not cause discomfort due to rubber odor or the like.

Since this composition is a transparent resin (elastomer), it can be colored freely.

Further, the product formed from this composition can be easily cut with scissors or the like, and can be adjusted to a desired size.

In the breast assisting device of the present invention, preferably, the plasticizer is a paraffin plasticizer. In particular, the plasticizer is preferably liquid paraffin.

The weight ratio of the hydrogenated styrene isoprene butadiene block copolymer is preferably in the range of 1% to 20%.

On the other hand, the material used for the breast assisting device of the present invention may be a composition whose main components are a mixture of a styrene-ethylene-butylene-styrene copolymer and a plasticizer.

The composition obtained by mixing the styrene-ethylene-butylene-styrene copolymer (SEBS polymer) and the plasticizer contained in this breast assisting device has extremely high stretchability and flexibility (JIS Shore A: 1 ° or less; 15 ° or less). More than twice the elasticity). Further, since it is solid, has no tackiness, and has poor thermal conductivity, it does not deprive the human body of heat even when it comes into direct contact with the skin. Moreover, since it is odorless and is a transparent resin, it can be colored freely. Further, the product formed from this composition can be easily cut with scissors or the like, and can be adjusted to a desired size.

In the breast assisting device of the present invention, preferably, the plasticizer is a paraffin plasticizer. In particular, the plasticizer is preferably liquid paraffin. Also, SE
The weight ratio of the BS polymer is preferably in the range of 1% to 20%.

The breast assisting device of the present invention preferably has a deformed elliptical shape, and has a wing-shaped cross section along the long axis and the short axis, and a cross section along the short axis. Has a shape in which one end is thicker than the other end.

[0069] With such a configuration, a breast assisting device having a shape suitable for supporting the breast from the ventral side can be realized.

In this breast assisting device, it is preferable that a cavity is formed inside.

When the cavity is formed as described above, the weight can be reduced.

The breast assisting device of the present invention is preferably formed by any one of injection molding, casting, and slash molding.

The breast assisting device of the present invention is manufactured by injecting, pouring, or extruding a material into a space formed inside a mold such as a mold. It is possible to take a free shape and thickness. For this reason, the breast assisting device of the present invention can be formed into various shapes, and the thickness can be easily changed depending on the location.

Next, according to the method for forming a breast assisting device of the present invention according to the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and the plasticizer is used as a main component. In forming a breast assisting device as a paraffin plasticizer by injection molding, the raw material is injected into a space formed in a mold of a breast assisting device to be formed by using a heated composition as a raw material. It is characterized by being molded.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a breast assisting tool having a free shape corresponding to the shape of the internal space of the mold.

According to another method of forming a breast assisting device according to the present invention, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a breast aid using a paraffin plasticizer by injection molding, a raw material obtained by heating the composition is injected into a space formed in a mold of the breast aid to be formed. And the heating temperature during molding of the composition is set to a temperature in the range of 140 ° C. to 260 ° C.

As described above, since the raw material is injected into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold can be formed. At this time, the heating temperature at the time of molding the composition is preferably set to a temperature in the range of 140 ° C to 260 ° C.

According to still another method of forming a breast aid according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and In forming a breast assisting device using a paraffin-based plasticizer as an ingredient by injection molding, the raw material obtained by heating the composition is injected into a space formed in a mold of the breast assisting device to be formed. And the injection pressure at the time of molding the composition is 40 kg / cm ^{2 to} 5 kg.
It is characterized in that the pressure is in the range of 0 kg / cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold can be formed. At this time, the injection pressure at the time of molding the composition was 40 kg / cm ^{2 to} 5 kg.
It is preferable to set the pressure within the range of 0 kg / cm ² .

According to still another method of forming a breast assisting device according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and In forming a breast assisting device using a paraffin-based plasticizer as an ingredient by injection molding, the raw material obtained by heating the composition is injected into a space formed in a mold of the breast assisting device to be formed. The composition is heated to a temperature in the range of 140 ° C. to 260 ° C. at the time of molding the composition, and the injection pressure at the time of molding the composition is set to 40K.
The pressure is within the range of g / cm ^{2 to} 50 Kg / cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold can be formed. In this case, the heating temperature during molding of the composition along with a temperature in the range of 140 ° C. to 260 ° C., a pressure in the range of injection pressure during molding of 40Kg / cm ² ~50Kg / cm ² of the composition It is preferred to do so.

According to still another method of forming a breast assisting device of the invention according to the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, When forming by a casting method, a breast aid using a paraffin-based plasticizer as an agent, the raw material is poured from a heated composition into a space formed in a mold of the breast aid to be formed. It is characterized by being molded by.

As described above, since the raw material is poured into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the internal space of the mold can be formed.

According to still another method of forming a breast assisting device according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer is used as a main component, and When forming a breast aid using a paraffin-based plasticizer as a casting agent by a casting method, a cavity forming member is provided in a space formed in a mold of the breast aid to be formed, and the composition is heated. The raw material obtained as described above is poured into a space formed in a mold to be formed, and a cavity forming member is extracted.

As described above, since the raw material is poured into the space formed inside the mold, it is possible to form a breast assisting tool having a free shape corresponding to the shape of the internal space of the mold. Also,
At the time of pouring the raw material, a cavity forming member is provided in the inner space of the mold, so that a breast auxiliary tool having a cavity formed therein is formed. Therefore, the weight of the breast assist device can be reduced. In addition, since the raw material of the breast assisting device is highly elastic, holes formed on the surface after the cavity forming member has been extracted are inconspicuous.

According to still another method of forming a breast assisting device of the invention according to the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used as a main component. In forming a breast assisting device with a paraffin plasticizer by injection molding,
Using the heated composition as a raw material, the raw material is injected into a space formed in a mold of the breast assist device to be formed and molded.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold.

According to still another method of forming a breast assisting device according to the present invention, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used as a main component. In forming a breast assisting device with a paraffin plasticizer by injection molding,
The raw material obtained by heating the composition is injected into a space formed in the mold of the breast aid to be formed, and formed, and the heating temperature during molding of the composition is in the range of 140 ° C to 220 ° C. It is characterized by the temperature within.

As described above, since the raw material is injected into the space formed inside the mold, it is possible to form a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold. At this time, the heating temperature at the time of molding the composition is preferably set to a temperature in the range of 140 ° C to 220 ° C.

According to still another method of forming a breast assisting device according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used as a main component. In forming a breast assisting device with a paraffin plasticizer by injection molding,
The raw material obtained by heating the composition is injected into the space formed in the mold of the breast assist device to be formed, and the injection pressure at the time of molding the composition is set at 40 kg / cm ^{2 to} 50 kg /.
The pressure is within the range of cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold can be formed. At this time, the injection pressure at the time of molding the composition was 40 kg / cm ^{2 to} 5 kg.
It is preferable to set the pressure within the range of 0 kg / cm ² .

According to still another method of forming a breast assisting device according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used as a main component. In forming a breast assisting device with a paraffin plasticizer by injection molding,
The raw material obtained by heating the composition is injected into a space formed in the mold of the breast aid to be formed, and formed. The heating temperature during molding of the composition is in the range of 140 ° C to 220 ° C. And the injection pressure during molding of the composition is 40 kg / cm.
The pressure is in the range of ^{2 to} 50 kg / cm ² .

As described above, since the raw material is injected into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the internal space of the mold can be formed. In this case, the heating temperature during molding of the composition along with a temperature in the range of 140 ° C. to 220 ° C., a pressure in the range of injection pressure during molding of 40Kg / cm ² ~50Kg / cm ² of the composition It is preferred to do so.

According to still another method of forming a breast assisting device according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and By casting a breast-assisting tool as a paraffin-based plasticizer by the casting method, the raw material is heated using the heated composition as a raw material and poured into a space formed in a mold of the breast-assisting tool to be formed. It is characterized by doing.

As described above, since the raw material is poured into the space formed inside the mold, a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold can be formed.

According to still another method of forming a breast aid according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in combination. When forming a breast assisting device as a paraffin-based plasticizer by a casting method, a cavity forming member is provided in a space formed in a mold of the breast assisting device to be formed, and the composition is heated to obtain a composition. The obtained raw material is poured into a space formed in a mold to be formed, and a cavity forming member is extracted.

As described above, since the raw material is poured into the space formed inside the mold, it is possible to form a breast assisting tool having a free shape corresponding to the shape of the interior space of the mold. Also,
At the time of pouring the raw material, a cavity forming member is provided in the inner space of the mold, so that a breast auxiliary tool having a cavity formed therein is formed. Therefore, the weight of the breast assist device can be reduced. In addition, since the raw material of the breast assisting device is highly elastic, holes formed on the surface after the cavity forming member has been extracted are inconspicuous.

[0098]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the drawings only schematically show the size and shape so that the present invention can be understood. Therefore, the present invention is not limited to the illustrated example.

[First Embodiment] FIG. 1 is a diagram showing the configuration of a pseudo breast according to the first embodiment. FIG. 1A is a plan view of the pseudo breast viewed from above, and FIG.
FIG. 2B is a cross-sectional view showing a cut surface along the line II in FIG.

As shown in FIG. 1, the simulated breast 10 includes a substantially hemispherical bowl-shaped portion 12 and a projection 14 imitating a nipple. The bowl-shaped part 12 has a deformed hemispherical shape,
The shape and thickness are determined as required. In this example, the protrusion 14 having a rounded tip is provided near the center of the spherical surface 12a of the bowl-shaped portion 12. This projection 1
4 may not be provided in some cases.

The pseudo breast 10 is mounted by directly contacting the back side 12b of the bowl-shaped portion 12 with the user's chest. At this time, for example, a polydent (trade name), which is a buffer used for attaching dentures, may be applied to the back surface 12b of the bowl-shaped portion 12 as an adhesive.

The simulated breast 10 of this embodiment is made of a material mainly composed of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a liquid paraffin as a plasticizer at a weight ratio of 5:95. Is formed. The composition can be formed into a desired shape by heating and applying pressure to the mold.

In this embodiment, the hydrogenated styrene isoprene butadiene block copolymer and the liquid paraffin were mixed at a weight ratio of 5:95.
It can be changed as appropriate within the range of 1:99 to 20:80. The lower the mixing ratio of the hydrogenated styrene isoprene butadiene block copolymer to the whole composition, the higher the flexibility of the composition, and the higher the ratio, the lower the flexibility of the composition.

The hardness of the composition used for the simulated breast 10 is preferably 20 ° or less according to JIS Shore A. In particular, in the simulated breast 10 of this example, the angle is 1 ° or less in JIS Shore A.

Further, the composition used for the simulated breast 10 may be any one having at least five times the elasticity. The pseudo breast 10 in this example has a stretchability of 15 times or more.

The hydrogenated styrene isoprene butadiene block copolymer used here is a commercially available resin. This resin is available under the trade name "Septon"
Available from Kuraray.

The composition described above is solid unlike the conventional silicon sol. Therefore, the pseudo breast 1 in this example
0 does not require a coating such as a urethane film for maintaining the shape and preventing surface stickiness. Therefore, the surface is not roughened, and the feeling of use is good. Also, since there is no stickiness, it has a dry feel.

A composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer is odorless. Therefore, in the simulated breast 10 of this embodiment,
Does not cause discomfort due to rubber odor.

Next, a method of forming the simulated breast 10 of this embodiment will be described. This pseudo breast 10 can be formed by a known injection molding method. In addition, this pseudo breast 1
0 can be formed by other methods. For example, it can be formed by a casting method or a slash molding method.

[0110] The simulated breast 10 is manufactured by injecting a raw material into a space formed in a mold from a known injection device. The mold is, for example, a female mold that can be divided into two parts on the left and right sides and has a plurality of space portions formed therein with the same shape as the outer shape of the dummy breast 10. Therefore, this mold is configured such that when the left and right female molds are combined, a cavity corresponding to the shape of the pseudo breast 10 is formed inside. By injecting the heated composition (raw material) into the cavity from a known injection device, a plurality of pseudo breasts 10 can be obtained.
Are simultaneously formed. After a predetermined time has elapsed, the left and right female molds are opened, and the formed pseudo-breast 10 is removed. As described above, since the simulated breast 10 is formed of a material having extremely large elasticity, it is stretched by hand or the like,
It can be easily removed from the mold.

The heating temperature during molding of the composition is from 140 ° C.
The temperature is preferably in the range of 260 ° C., and more preferably in the range of 180 ° C. to 200 ° C. in consideration of the flexibility, strength, elasticity, moldability and the like of the simulated breast 10. The injection pressure during molding is 40 kg / cm.
^It is preferably in the range of ^{2 to} 50 kg / cm ² , and from the viewpoint of workability, 20 kg / cm ^{2 to} 50 kg / cm 2.
The pressure should be within the range of ² .

Further, by mixing a dye with the composition prior to the injection, the pseudo breast 10 can be easily colored.

Next, with reference to Table 1, test results of physical properties of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer will be described. Table 1
The test result of the composition which mixed hydrogenated styrene isoprene butadiene block copolymer and liquid paraffin at a ratio of 13 to 100 by weight is shown.

[0114]

[Table 1]

As shown in Table 1, the tensile yield strength of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and liquid paraffin at a weight ratio of 13: 100 was determined according to the test method of JIS-K7113. As a result, it was 2.0 kgf / cm ² .

The tensile strength at break of this composition was measured according to JIS.
The composition did not break when tested according to the test method -K7113. Therefore, it was found that this composition had a very excellent tensile strength at break and was hard to cut.

The tensile elongation at break of this composition was measured by JI
When tested in accordance with the test method of S-K7113, 1
000%. Therefore, it was found that this composition had a very excellent tensile elongation at break and was rich in flexibility.

Further, the specific gravity of this composition was determined according to JIS-K7
When the test was conducted in accordance with the test method of No. 112, it was found to be about 0.85
Met.

Next, Table 2 shows the dissolution test results of endocrine disruptors (environmental hormones) from the hydrogenated styrene isoprene butadiene block copolymer of the composition used for the simulated breast of the embodiment. This copolymer has been notified by the Ministry of Health and Welfare
Clears No. 0 and PL (Positive list of the Polyolefin Hygiene Council).

[0120]

[Table 2]

As shown in Table 2, the dissolution test results of the hydrogenated styrene isoprene butadiene block copolymer were as follows:
Neither styrene dimer nor styrene trimer was detected.

[Second Embodiment] FIG. 2 is a sectional view showing the structure of a pseudo breast according to a second embodiment. FIG.
FIG. 2 shows a cut corresponding to a position along the line II in FIG. Note that the same components as those of the simulated breast 10 of the first embodiment are denoted by the same reference numerals.

As shown in FIG. 2, the simulated breast 10a includes a substantially hemispherical bowl-shaped portion 12 and a projection 14 imitating a nipple, similarly to the simulated breast 10 of the first embodiment. I have. In this example, a cavity 16 is formed inside the bowl-shaped portion 12. By appropriately designing the volume occupied by the cavities 16 and the number of the cavities 16, the weight of the simulated breast 10a body can be reduced.

Next, a method of forming the pseudo breast 10a of this embodiment will be described. The pseudo breast 10 can be formed by a known casting method. FIG.
FIG. 6 is a cross-sectional view for explaining the forming method according to the embodiment.

The simulated breast 10a is manufactured by pouring a raw material into a space formed in a mold. FIG.
As shown in (A), the mold 18 has a pseudo breast 10 on its surface.
Is a female mold in which a plurality of space portions 20 having the same shape as the outer shape are formed. Each space portion 20 is provided with an appropriate number of cavity forming members 22. This cavity forming member 22
Is a member in which a wide end portion and a rod-shaped portion having a smaller diameter are joined. This cavity forming member 22
Is held in a state where the tip portion is placed inside the space portion 20. However, the tip of the cavity forming member 22 is prevented from contacting the surface of the mold 18. Each cavity forming member 22 is arranged such that the rod-shaped portion is located at a boundary portion (indicated by a broken line a) between the space portion 20 and the outside.

Subsequently, a plurality of pseudo breasts 10a are simultaneously formed by pouring the heated composition (raw material) 24 into the space 20 from a known pouring device (FIG. 3B).

Next, after a predetermined time has elapsed, the cavity forming member 22 is extracted. Since the simulated breast 10a is formed of a material having extremely high elasticity, the cavity forming member 22 can be easily extracted. And since it is excellent in elasticity, the hole formed by the rod-shaped part of the cavity forming member 22 becomes inconspicuous. According to such a manufacturing method, the pseudo breast 10a having the cavity 16 shown in FIG. 2 can be easily formed.

[Third Embodiment] A simulated breast according to a third embodiment has a structure shown in FIG. 1 or FIG. 2, and the main component of the material is styrene-ethylene-butylene-styrene copolymer (SEBS). (Polymer) and liquid paraffin as a plasticizer are mixed at a weight ratio of 5:95.
The composition can be formed into a desired shape by heating and applying pressure to the mold.

In this embodiment, the SEBS polymer and the liquid paraffin are mixed at a weight ratio of 5:95, but the mixing ratio can be appropriately changed within a range of 1:99 to 20:80. . In addition, SE with respect to the whole composition
The lower the mixing ratio of the BS polymer, the higher the flexibility of the composition, and the higher the ratio, the lower the flexibility of the composition.

The hardness of the composition used for the simulated breast is preferably 20 ° or less according to JIS Shore A. In particular, in the simulated breast of this example, JIS Shore A
° or less.

Further, the composition used for the pseudo-breast should have at least five times the elasticity.
The pseudo breast of this example has a stretchability of 15 times or more.

The SEBS polymer used here is a commercially available resin. As this resin, for example, a product name “Crainton” sold by Shell Japan Co., Ltd. or a product name “Septon” sold by Kuraray Co., Ltd. is known.

The composition described above is a solid unlike conventional silicon sols. Therefore, the pseudo-breast of this example does not require a coating such as a urethane film for retaining the shape and preventing surface tackiness. Therefore, the surface is not roughened, and the feeling of use is good. Also, since there is no stickiness, it has a dry feel.

The composition obtained by mixing the SEBS polymer and the plasticizer is odorless. Therefore, in the simulated breast of this embodiment, no discomfort due to rubber odor or the like occurs.

The pseudo breast of this embodiment can be formed by any of injection molding, casting, and slush molding. Here, the injection molding method will be described as an example.

As described in the first embodiment, a plurality of pseudo breasts are simultaneously formed by injecting a heated composition (raw material) into a cavity of a mold from a known injection device. . The heating temperature during molding of the composition is 140
The temperature is preferably in the range of from 220 ° C to 220 ° C, and more preferably in the range of from 180 ° C to 200 ° C in consideration of the flexibility, strength, elasticity, moldability, and the like of the simulated breast. The injection pressure during molding is 40 kg / cm.
^It is preferably in the range of ^{2 to} 50 kg / cm ² , and from the viewpoint of workability, 20 kg / cm ^{2 to} 50 kg / cm 2.
The pressure should be within the range of ² .

In addition, by mixing a dye with the composition prior to the injection, the pseudo-breast can be easily colored.

Next, the test results of the physical properties of the composition obtained by mixing the SEBS polymer and the plasticizer will be described with reference to Table 3. Table 3 shows the test results of a composition in which the SEBS polymer and the liquid paraffin were mixed at a weight ratio of 13 to 100.

[0139]

[Table 3]

As shown in Table 3, the tensile yield strength of a composition in which the SEBS polymer and the liquid paraffin were mixed at a weight ratio of 13 to 100 was tested in accordance with the test method of JIS-K7113. , 2.0 Kgf / cm ² .

The tensile strength at break of this composition was measured in accordance with JIS.
The composition did not break when tested according to the test method -K7113. Therefore, it was found that this composition had a very excellent tensile strength at break and was hard to cut.

Further, the tensile elongation at break of this composition was determined by JI
When tested in accordance with the test method of S-K7113, 1
000%. Therefore, it was found that this composition had a very excellent tensile elongation at break and was rich in flexibility.

The specific gravity of this composition is JIS-K7
When the test was conducted in accordance with the test method of No. 112, it was found to be about 0.85
Met.

Next, with reference to Table 4, test results of a dissolution test of a composition in which the SEBS polymer and the plasticizer are mixed at a weight ratio of 13 to 100 will be described. Table 4 shows test results of physical properties of the composition used for the simulated breast of the embodiment. This test is based on the Food Sanitation Law / Food, Additives, etc. (Ministry of Health and Welfare Notification No. 370 in 1959), vinyl chloride resin paints used in the manufacture of toys and materials mainly composed of vinyl chloride polymer (1972 Ministry of Health and Welfare Notification 257
No.).

[0145]

[Table 4]

As shown in Table 4, the dissolution test result of this composition for heavy metals was 1 ppm or less (as Pb). Also, the cadmium dissolution test results of this composition,
It was 0.5 ppm or less. The arsenic elution test result of this composition was 0.1 ppm or less (as As ₂ O ₃ ). Further, the potassium permanganate consumption of this composition was 2.8 ppm. The evaporation residue of this composition was 1.5 ppm. In addition, no elution of the coloring agent of this composition was detected (no elution).

From the test results, it can be seen that this composition has no toxicity with respect to the test items and is preferable from a sanitary viewpoint.

[Fourth Embodiment] FIG. 4 is a diagram showing a configuration of a breast assisting device according to a fourth embodiment. FIG. 4 (A)
FIG. 4B is a plan view of the breast assisting device as viewed from above, FIG. 4B is a cross-sectional view showing a cut along the line II in FIG. 4A, and FIG. FIG. 5 is a cross-sectional view showing a cut surface taken along line JJ of FIG.

As shown in FIG. 4, the breast assisting device 26 has a deformed elliptical shape, and has a major axis (along the line II in the figure) and a minor axis (the line JJ in the figure). Section) along the direction is an airfoil. One end of the cross section along the short axis is thicker than the other end. Preferably, such that the thick end is located on the shoulder side at the time of wearing,
It is mounted so that the other end of the thickness is located on the abdominal side during mounting. As described above, the breast assisting device 26 is configured to have a heaped shape that rises to the shoulder side. However, the shape and thickness of the breast assist device 26 may be determined in more detail according to the installation position, the physique of the user, and the like.

This breast assisting device 26 has a back side 26a.
Is placed in direct contact with the user's chest. At this time,
For example, Polydent (trade name), which is a buffer used to attach dentures, is used as an adhesive to the breast assisting device 2.
6 is preferably applied to the back side 26a.

Further, it is preferable to form a cavity inside the breast assisting device 26. By appropriately designing the volume occupied by the cavities and the number of cavities, the weight of the breast assisting device 10 can be reduced.

The breast assisting device 26 of this embodiment has a first
Similarly to the simulated breast according to the embodiment, the composition is formed of a material mainly composed of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a liquid paraffin as a plasticizer at a weight ratio of 5:95. Have been. The composition can be formed into a desired shape by heating and applying pressure to the mold.

In this embodiment, the hydrogenated styrene isoprene butadiene block copolymer and the liquid paraffin were mixed at a weight ratio of 5:95.
It can be changed as appropriate within the range of 1:99 to 20:80. The lower the mixing ratio of the hydrogenated styrene isoprene butadiene block copolymer to the whole composition, the higher the flexibility of the composition, and the higher the ratio, the lower the flexibility of the composition. In addition, the breast assist device 26
Slightly harder than a simulated breast is preferred. Therefore, more preferably, the hydrogenated styrene isoprene butadiene block copolymer and liquid paraffin are mixed at a weight ratio of 7:93.

In addition, the breast assist device 26 of this embodiment
In the same manner as in the simulated breast of the third embodiment, the weight ratio of SEBS polymer and liquid paraffin as a plasticizer is 5: 9.
It may be formed of a material containing a composition mixed at a ratio of 5 as a main component. The mixing ratio of the SEBS polymer to the liquid paraffin ranges from 1:99 to 20:80 by weight,
It can be changed as appropriate.

In any case, the hardness of the composition used for the breast assist device 26 is preferably 20 ° or less according to JIS Shore A. The breast assist device 26 in this example is a JI
It is 1 ° or less at S Shore A.

Furthermore, the composition used for the breast assisting device 26 may be one having at least five times the elasticity. The breast assist device 26 of this example has a stretchability of 15 times or more.

This breast assisting device 26 can be formed by a method similar to the method of forming a pseudo breast described in the first and second embodiments. It is only necessary to change the shape of the mold.

[0158]

The material constituting the pseudo-breast and the breast assisting device of the present invention has extremely high elasticity and flexibility. Accordingly, a texture very close to that of a real breast can be obtained, which is not only soft but also rich in rebound resilience. In addition, since a coating for maintaining the shape and preventing the surface from sticking is not required, there is no stickiness and no discomfort is caused during mounting.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a pseudo breast according to a first embodiment.

FIG. 2 is a diagram illustrating a configuration of a pseudo breast according to a second embodiment.

FIG. 3 is a diagram for explaining a forming method according to a second embodiment;

FIG. 4 is a diagram illustrating a configuration of a breast assisting device according to a fourth embodiment.

[Explanation of symbols]

 10, 10a: pseudo breast 12: bowl-shaped part 12a: spherical surface side 12b: rear surface side 14: protrusion 16: cavity 18: mold 20: space part 22: cavity forming member 24: raw material 26: breast auxiliary tool 26a: Back side

[Procedure amendment]

[Submission date] March 1, 2000 (200.3.1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

Patent application title: Pseudo-breast and method for forming the same

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

Therefore, according to the pseudo-breast of the invention according to this application, a material mainly composed of a mixture of a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer is used. It is characterized by the following.

[Procedure amendment 4]

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[0011] The composition obtained by mixing the hydrogenated styrene isoprene butadiene block copolymer and the plasticizer contained in the pseudo breast has a very low hardness, for example, JIS-K6
Under the rubber hardness A condition 301 (hereinafter, abbreviated as JIS Shore A), 1 ° or less can be realized. Therefore, the same degree of softness as a real breast can be obtained. Also,
Because this material is an elastomer, it is rich in rebound resilience,
Even when stress is applied, it returns to its original shape instantly. For example, this material has a stretch of 15 times or more. Therefore, a simulated breast made of a material containing this composition as a main component has extremely high elasticity and flexibility, and has a texture very close to that of a real breast.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

Furthermore, the material containing this composition as a main component is solid, has no tackiness, and does not cause any discomfort when worn. Therefore, unlike the case of the silicon sol, a coating (urethane film) for maintaining the shape and preventing surface tackiness is not required.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

In this pseudo breast, it is preferable that a plurality of cavities are formed inside the bowl-shaped portion.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

According to still another method for forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, In forming a pseudo-breast with a paraffin plasticizer by a casting method, in the space formed in the mold of the pseudo-breast to be formed,
A plurality of cavity-forming members are arranged, a raw material obtained by heating the composition is poured into a space formed in a mold to form the cavity-forming member, and the cavity-forming member is extracted.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction contents]

As described above, since the raw material is poured into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In addition, when the raw material is poured, since a cavity forming member is provided in the inner space of the mold, a pseudo breast having a cavity formed therein is formed. Therefore, the weight of the simulated breast can be reduced. In addition, since the raw material of the simulated breast is rich in elasticity, holes formed on the surface after the cavity forming member has been extracted are inconspicuous. In addition, it is preferable that the above-mentioned cavity forming member is a member in which a wide end portion is joined to one end of a rod-shaped portion.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction contents]

According to still another method of forming a pseudo-breast according to the invention of the present application, a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer is used as a main component, and the plasticizer is used in paraffin. In forming a pseudo breast as a system plasticizer by casting method,
A plurality of cavity forming members are arranged in the space formed in the mold of the pseudo breast to be formed, and the raw material obtained by heating the composition is formed by flowing into the space formed in the mold. And extracting the cavity forming member.

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction contents]

As described above, since the raw material is poured into the space formed inside the mold, a pseudo breast having a free shape corresponding to the shape of the interior space of the mold can be formed. In addition, when the raw material is poured, since a cavity forming member is provided in the inner space of the mold, a pseudo breast having a cavity formed therein is formed. Therefore, the weight of the simulated breast can be reduced. In addition, since the raw material of the simulated breast is rich in elasticity, holes formed on the surface after the cavity forming member has been extracted are inconspicuous. In addition, it is preferable that the above-mentioned cavity forming member is a member in which a wide end portion is joined to one end of a rod-shaped portion.

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Claims (50)

[Claims] 1. It has a stretchability of at least 5 times,
A pseudo breast characterized by using a material having a hardness of 20 ° or less according to JIS Shore A. 2. The simulated breast according to claim 1, wherein the material does not require a coating for keeping its shape and preventing surface tackiness. 3. The simulated breast according to claim 1, wherein a main component of the material is a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer. Pseudo breasts. 4. The simulated breast according to claim 3, wherein the plasticizer is a paraffin-based plasticizer. 5. The simulated breast according to claim 4, wherein the plasticizer is liquid paraffin. 6. The pseudo breast according to claim 3, wherein the weight ratio of the hydrogenated styrene isoprene butadiene block copolymer is in the range of 1% to 20%. 7. The simulated breast according to claim 1, wherein a main component of the material is a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer. . 8. The simulated breast according to claim 7, wherein the plasticizer is a paraffin plasticizer. 9. The simulated breast according to claim 8, wherein the plasticizer is liquid paraffin. 10. The simulated breast according to claim 7, wherein the weight ratio of the styrene-ethylene-butylene-styrene copolymer is in a range of 1% to 20%. 11. The pseudo breast according to any one of claims 1 to 10, wherein the pseudo breast has a substantially hemispherical bowl-like portion, and the bowl-like portion has a projection like a nipple. A pseudo breast characterized by being provided as required. 12. The pseudo breast according to claim 11, wherein a cavity is formed inside the bowl-shaped portion. 13. The pseudo breast according to claim 1, wherein the pseudo breast is formed by any one of an injection molding method, a casting molding method, and a slash molding method. Pseudo-breast to feature. 14. A pseudo-breast composed mainly of a composition obtained by mixing a hydrogenated styrene-isoprene-butadiene block copolymer and a plasticizer, and using the plasticizer as a paraffin-based plasticizer by injection molding. Wherein the heated composition is used as a raw material, and the raw material is injected into a space formed in a mold of the pseudo breast to be formed and molded. 15. A pseudo-breast composed mainly of a composition obtained by mixing a hydrogenated styrene-isoprene-butadiene block copolymer and a plasticizer, and a paraffin-based plasticizer formed by injection molding. The raw material obtained by heating the composition is formed by injecting into a space formed in a mold of a pseudo breast to be formed, and the heating temperature at the time of molding the composition is 140 ° C. to 260 ° C. A method for forming a simulated breast, wherein the temperature is in the range of ° C. 16. A pseudo-breast composed mainly of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer, and a paraffin-based plasticizer as the plasticizer, are formed by injection molding. In this case, the raw material obtained by heating the composition is injected into a space formed in a mold of a pseudo breast to be formed, and the injection pressure at the time of molding the composition is set to 40 kg / cm ^2. ~ 50
A method for forming a pseudo-breast, wherein the pressure is within a range of Kg / cm ² . 17. A pseudo-breast composed mainly of a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer with a plasticizer, and a paraffin-based plasticizer formed by injection molding. The raw material obtained by heating the composition is injected into a space formed in a mold of the pseudo breast to be formed, and formed, and the heating temperature at the time of molding the composition is 140 ° C. to 260 ° C. method of forming a pseudo breast, characterized in that the a temperature in the range, and a pressure in the range of injection pressure of 40Kg / cm ² ~50Kg / cm ² at the time of molding of the composition. 18. A pseudo-breast containing a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component and the plasticizer as a paraffin plasticizer is formed by a casting method. Wherein the heated composition is used as a raw material, and the raw material is poured into a space formed in a mold of the pseudo-breast to be formed and molded. 19. A pseudo-breast containing a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component and the plasticizer as a paraffin plasticizer is formed by a casting method. A cavity forming member is provided in a space formed in the mold of the pseudo breast to be formed, and a raw material obtained by heating the composition is poured into a space formed in the mold. And extracting the cavity forming member. 20. A method of forming a pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component, and using the plasticizer as a paraffin-based plasticizer by an injection molding method. A method for forming a pseudo breast, wherein the heated raw material is used as a raw material, and the raw material is injected into a space formed in a mold of the pseudo breast to be formed and molded. 21. A pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and the plasticizer as a paraffin-based plasticizer is formed by injection molding. The raw material obtained by heating the composition is formed by injecting into a space formed in a mold of the pseudo breast to be formed, and the heating temperature at the time of molding the composition is 140 ° C. to 220 ° C. A method for forming a simulated breast, wherein the temperature is within a range. 22. A pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer with a plasticizer as a main component and the plasticizer as a paraffin-based plasticizer is formed by injection molding. A raw material obtained by heating the composition is injected into a space formed in a mold of a pseudo breast to be formed, and the injection pressure at the time of molding the composition is 40 kg / cm ² to 50 kg / cm ^2.
A method for forming a pseudo-breast, wherein the pressure is within a range of Kg / cm ² . 23. A method of forming a pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin-based plasticizer by an injection molding method. A raw material obtained by heating the composition is injected into a space formed in a mold of a pseudo breast to be formed, and formed, and a heating temperature during molding of the composition is in a range of 140 ° C to 220 ° C. method of forming a pseudo breast, characterized in that the temperature of the inner, and a pressure in the range of injection pressure of 40Kg / cm ² ~50Kg / cm ² at the time of molding of the composition. 24. A pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and the plasticizer as a paraffin-based plasticizer is formed by a casting method. A method for forming a simulated breast, wherein the heated raw material is poured into a space formed in a mold of a simulated breast to be formed and molded. 25. A pseudo-breast containing a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and the plasticizer as a paraffin-based plasticizer is formed by a casting method. In the space formed in the mold of the pseudo breast to be formed, a cavity forming member is provided, and the raw material obtained by heating the composition is poured into the space formed in the mold to form the material. And a method for forming a pseudo breast, wherein the cavity forming member is extracted. 26. A breast assisting device having a stretchability of at least 5 times and using a material having a hardness of 20 ° or less according to JIS Shore A. 27. The breast assisting device according to claim 26, wherein the material does not require a coating for keeping its shape and preventing surface tackiness. 28. The breast assisting device according to claim 26 or 27, wherein the main component of the material is a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer. Breast aids to do. 29. The breast assisting device according to claim 28, wherein the plasticizer is a paraffinic plasticizer. 30. The breast assist device according to claim 29, wherein the plasticizer is liquid paraffin. 31. The breast assisting device according to claim 28, wherein the weight ratio of the hydrogenated styrene isoprene butadiene block copolymer is in the range of 1% to 20%. 32. The breast assisting device according to claim 26, wherein the main component of the material is a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer. Aids. 33. The breast assisting device according to claim 32, wherein the plasticizer is a paraffinic plasticizer. 34. The breast assisting device according to claim 33, wherein the plasticizer is liquid paraffin. 35. The breast assisting device according to claim 32, wherein the weight ratio of the styrene-ethylene-butylene-styrene copolymer is in a range of 1% to 20%. 36. The breast assisting device according to any one of claims 26 to 35, wherein the breast assisting device has a deformed elliptical shape, and a cross section along a major axis and a minor axis thereof has an airfoil shape. A breast assisting device characterized in that one end of a cross section along the short axis has a shape that is thicker than the other end. 37. The breast assisting device according to claim 36, wherein a cavity is formed therein. 38. The breast assisting device according to any one of claims 26 to 35, wherein the breast assisting device is formed by any one of an injection molding method, a casting molding method, and a slash molding method. A breast assisting device characterized in that: 39. A breast assisting device comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, and using the plasticizer as a paraffinic plasticizer by an injection molding method. In doing so, a method for forming a breast assisting device is characterized in that the heated composition is used as a raw material and the raw material is injected into a space formed in a mold of the breast assisting device to be formed and molded. 40. A breast auxiliary tool comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, and using the plasticizer as a paraffin plasticizer, by injection molding. In doing so, the raw material obtained by heating the composition is injected into a space formed in the mold of the breast assist device to be formed, and formed, and the heating temperature at the time of molding the composition is 140 ° C. A method for forming a breast assisting device, wherein the temperature is in the range of -260 ° C. 41. A breast assisting device comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component, and using the plasticizer as a paraffinic plasticizer, by injection molding. In doing so, the raw material obtained by heating the composition is injected into a space formed in the mold of the breast assist device to be formed, and the injection pressure at the time of molding the composition is 40 kg / cm ² -5
A method for forming a breast assisting device, wherein the pressure is within a range of 0 kg / cm ² . 42. A breast assisting device comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component and using the plasticizer as a paraffinic plasticizer by an injection molding method. In doing so, the raw material obtained by heating the composition is injected into a space formed in the mold of the breast aid to be formed, and formed. The heating temperature at the time of molding the composition is 140 ° C. a temperature in the range of 260 ° C., and the method of forming the breast aid, characterized in that a pressure in the range of injection pressure of 40Kg / cm ² ~50Kg / cm ² at the time of molding of the composition. 43. A method for casting a breast assisting tool comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component and using the plasticizer as a paraffin plasticizer by a casting method. In doing so, a method for forming a breast assisting device is characterized in that the heated composition is used as a raw material and the raw material is poured into a space formed in a mold of the breast assisting device to be formed and molded. 44. A method for casting a breast assisting tool comprising a composition obtained by mixing a hydrogenated styrene isoprene butadiene block copolymer and a plasticizer as a main component and using the plasticizer as a paraffinic plasticizer by a casting method. In doing so, a cavity forming member is provided in a space formed in the mold of the breast assisting device to be formed, and the raw material obtained by heating the composition is poured into the space formed in the mold. And extracting the cavity-forming member. 45. A method for forming a breast assisting device comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin plasticizer by an injection molding method. A method for forming a breast assisting device, wherein the heated composition is used as a raw material, and the raw material is injected into a space formed in a mold of the breast assisting device to be formed and molded. 46. A method for forming a breast assisting device comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin-based plasticizer by an injection molding method. The raw material obtained by heating the composition is injected into a space formed in a mold of the breast assist device to be formed, and formed, and the heating temperature at the time of molding the composition is 140 ° C. to 220 ° C. A method for forming a breast assisting device, wherein the temperature is in the range of ° C. 47. A method for forming a breast assisting device comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin-based plasticizer by an injection molding method. The raw material obtained by heating the composition is injected into a space formed in a mold of the breast assist device to be formed, and the injection pressure at the time of molding the composition is 40 kg / cm ^2. ~ 5
A method for forming a breast assisting device, wherein the pressure is within a range of 0 kg / cm ² . 48. A method for forming a breast assisting device comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin-based plasticizer by an injection molding method. The raw material obtained by heating the composition is injected into a space formed in a mold of the breast assist device to be formed, and formed, and the heating temperature at the time of molding the composition is 140 ° C. to 220 ° C. a temperature in the range of, and method of forming mammary aid, characterized in that a pressure in the range of injection pressure of 40Kg / cm ² ~50Kg / cm ² at the time of molding of the composition. 49. A method for forming a breast assisting device by a casting method comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component and using the plasticizer as a paraffin-based plasticizer. A method for forming a breast assisting device, wherein the heated composition is used as a raw material, and the raw material is poured into a space formed in a mold of the breast assisting device to be formed and molded. 50. A method for forming a breast assisting device by a casting method, comprising a composition obtained by mixing a styrene-ethylene-butylene-styrene copolymer and a plasticizer as a main component, and using the plasticizer as a paraffin-based plasticizer. A cavity forming member is provided in a space formed in a mold of a breast assisting device to be formed, and a raw material obtained by heating the composition is poured into a space formed in the mold to form a material. And extracting the cavity forming member.