JP2000313731A - Elastic gel for mannequin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an elastic gel for mannequin, preferably useful in the case of producing a soft mannequin having flexibility and elasticity approximately similar to soft tissues of human body. SOLUTION: This polyurethane gel is obtained by reacting an alkylene oxide chain-containing polyol liquid at a normal temperature and/or an alkylene oxide chain-containing polyurethane polyol prepolymer with an alkylene oxide chain- containing polyurethane polyisocyanate prepolymer liquid at a normal temperature, contains an organic dispersion medium for raising gel flexibility and has 20% modulus value in compressive deformation in the range of 50-750 g/cm2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic gel for a mannequin which is suitably used for producing a soft mannequin having flexibility and elasticity very similar to soft tissue of a human body.

[0002]

2. Description of the Related Art A conventional mannequin is formed by molding a molding material such as synthetic resin, fiber reinforced resin or paper into the shape of a human body, and the shape is very similar to the human body, but lacks flexibility at all. It was a hard mannequin.

However, an inflexible hard mannequin, for example, has a breast, buttocks, abdomen, etc., even when wearing underwear such as a bra made by computer simulation in three dimensions so as to closely resemble the external shape of a human. Because the shape of the part corresponding to the particularly soft human body part does not fit (fit) to the underwear, how the body shape of the purchaser changes due to the wearing of the underwear or the shape of the underwear However, there remains a problem that it is not possible to determine the true quality of the camera when the camera is worn, such as how the camera fits the body.

[0004] Therefore, from a hard mannequin wearing high-quality underwear, it is not possible to accurately judge the shape conformity of the soft tissue of the actual purchaser, and it is necessary to try each time to check the change in the body shape and the quality of the fit. there were. However,
The above-mentioned try-on is complicated, and the underwear you try on becomes dirty and loses its commercial value.Therefore, the softness of the shape and flexibility is very similar to the human body, especially the breast, abdomen and buttocks have the flexibility of a human body. The development of a new mannequin has been awaited in recent years.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to address the above problems, and has almost the same flexibility and elasticity as soft tissues of a human body, which is preferably used when manufacturing a soft mannequin. It is an object of the present invention to provide an elastic gel for a mannequin provided with the above.

[0006]

In order to solve the above problems, an elastic gel for a mannequin according to claim 1 of the present invention comprises a polyol having an alkylene oxide chain which is liquid at ordinary temperature and / or an alkylene oxide chain which is liquid at ordinary temperature. A polyurethane gel obtained by reacting a polyurethane polyol prepolymer having a, and a polyurethane polyisocyanate prepolymer having a liquid alkylene oxide chain at room temperature, which contains an organic dispersion medium that enhances the flexibility of the gel, The value of the 20% modulus at the time of compressive deformation is in the range of 50 to 750 g / cm ² .

This elastic gel is obtained by incorporating an organic dispersion medium into an interpenetrated (IPN) segmented polyurethane structured into a three-dimensional network with alkylene oxide chain segments,
As described later, the reaction ratio between the polyol component and the polyisocyanate component is determined by the ratio of the terminal functional groups, that is, OH / N
20% modulus at the time of compressive deformation by regulating by the value of CO, adjusting the segment length of the alkylene oxide chain, adjusting the network chain concentration of the three-dimensional network, and adjusting the content of the organic dispersion medium. Value of 50-7
It was controlled within the range of 50 g / cm ² .

As the polyol component, those represented by the following structural formulas (1) to (4) are used, and as the polyisocyanate component, those represented by the following structural formulas (5) to (9) are used.

[0009]

Embedded image (However, in the structural formulas (1) to (4), R ₁ and R ₂ are any of an alkyl compound, an alicyclic compound, and an aromatic compound, (AO) is an alkylene oxide chain, and R
Is a hydrogen atom, an alkyl compound, an alicyclic compound, or an aromatic compound, and 1 is an integer of 1 or 4. )

[0010]

Embedded image (However, in the structural formulas (5) to (9), (AO) is an alkylene oxide chain, R is an alkyl group, an alicyclic compound, or an aromatic compound, and 1 is 1 or 4
Is an integer. )

Structural formula (1) is a polyurethane polyol prepolymer which is a reaction product of a polyether polyol and a diisocyanate, wherein both terminal components are a polyether polyol and both terminals are -OH groups. The diisocyanate compound used here is the same as that in the polyurethane polyisocyanate prepolymer described later, for example, phenylene diisocyanate, 2,2
2,4-toluylene diisocyanate (TDI), 4,
4'-diphenylmethane diisocyanate (MDI),
Naphthalene 1,5-diisocyanate, hexamethylene diisocyanate (HMDI), tetramethylene diisocyanate (TMDI), lysine diisocyanate, xylylene diisocyanate (XDI), TDI with water,
MDI with water, dicyclohexyldimethylmethane p,
p'-Diisocyanate, diethyl fumarate diisocyanate, isophorone diisocyanate (IPDI) and the like can be optionally used.

Structural formula (2) is glycerol (l =
It is obtained by adding polyether polyol to 1) or sorbitol (l = 4).

Structural formula (3) is obtained by adding polyether to trimethylolpropane.
Adducts of polyhydric alcohols such as hexanetriol, trimethylolethane, pentaerythritol, polyglycerin and partial esters thereof and polyether polyols can also be used.

Structural formula (4) is a polyether polyol having an alkylene oxide chain, wherein both terminals have --O
In the case of the H group, one end may be blocked with an alkyl group, an aromatic group, or the like, and it is easily available as a commercial product.

Structural formula (5) is a tetrafunctional tetraisocyanate obtained by dimerizing two molecules of triisocyanate obtained by reacting trimethylolpropane with diisocyanate with one molecule of (AO). Instead of this trimethylolpropane, Is a tetraisocyanate of the structural formula (6). Since this kind of tetraisocyanate cannot be obtained by the reaction of two or three molecules of (AO) with two molecules of triisocyanate,
It is necessary to finely control the reaction by reducing the amount of (AO) below the chemical equivalent. Therefore, unreacted triisocyanate is mixed, but when this reacts with the polyol, variation occurs in the size of the segmented polyurethane molecule,
It may also act in a way that is convenient for controlling the elasticity of the elastic gel.

Structural formula (7) is obtained by reacting a diisocyanate with a polyol of structural formula (2), and is trifunctional or hexafunctional. Structural formula (8) is also similar to polyol of structural formula (3). Is reacted with diisocyanate.
Sensuality. Structural formula (9) is a reaction product of polyether polyol and diisocyanate and is bifunctional.

Examples of the compound constituting the alkylene oxide chain (AO) include, for example, polymethylene glycol, polyethylene glycol, polypropylene glycol, polybutylene glycol, polytetramethylene glycol, polypentamethylene glycol, polyhexamethylene glycol, and polyheptamethylene glycol. Among them, polyethylene glycol, polypropylene glycol, and low molecular weight polytetramethylene glycol are readily available as liquid substances at normal temperature. Further, these copolymers, for example, polymers represented by the following structural formulas (10) and (11) can also be used.

[0018]

Embedded image (However, l, m, and n are integers of 1 or more.)

These copolymers are block copolymers,
It may be any of random copolymers, and the segments in one prepolymer may be composed of different types of alkylene oxide chains.

The molecular weight ranges of the above-mentioned polyol component and polyisocyanate component vary widely depending on the type and molecular shape of the alkylene oxide and isocyanate, and whether (AO) is a homopolymer or a copolymer. , About 700 to 10000 for a polyurethane polyol prepolymer and about 150 for a polyol.
~ 6000, about 500 to 10,000 in polyurethane polyisocyanate prepolymer, preferably about 1000 to 6000, 200 to 3000, 800 to respectively
You can select from a range of 5000.

The flexibility and elasticity of the polyurethane gel can be controlled by regulating the reaction ratio between the polyol component and the polyisocyanate component by the ratio of the terminal functional groups, that is, the OH / NCO value. Generally, the higher the value of OH / NCO, the lower the value of the deformation modulus. If the OH / NCO value is less than 1, unreacted -NCO causes a post-reaction, and if it exceeds 5, gel formation becomes difficult.
Although the value of CO can be set in the range of 1 to 5, in order to obtain a polyurethane gel having flexibility and elasticity very similar to soft tissue of the human body, the value of OH / NCO should be set to 1. It is good to adjust to a range of 3 to 4.0, preferably 1.5 to 3.5.

The flexibility and elasticity of the polyurethane gel vary depending on the segment length of the alkylene oxide chain (AO). Generally, the longer the segment length, the higher the flexibility. Therefore, by adjusting the molecular weight of the compound constituting the alkylene oxide chain (AO), the flexibility of the polyurethane gel can be made close to that of the soft tissue of the human body. For example, when (AO) is polyethylene glycol, , Mw: 150 to 800, preferably Mw: 200 to 600, and in the case of polypropylene glycol, Mw: 200 to 3000, preferably Mw: 1000 to 2000, and polytetramethylene glycol. In the case, Mw: 200 to 1
By using those having a molecular weight of 000, preferably Mw: 400 to 800, a polyurethane gel having flexibility and elasticity very similar to soft tissue of a human body can be obtained.

Further, the flexibility and elasticity of the polyurethane gel vary depending on the network chain concentration of the three-dimensional network. In general, the higher the network chain concentration, the lower the flexibility. In order to obtain a polyurethane gel having a three-dimensional network, a combination in which one of the polyol component and the polyisocyanate component is bifunctional or more and the other is trifunctional or more may be employed. If it becomes above, the network chain concentration becomes too high, and it becomes difficult to obtain a polyurethane gel having flexibility and elasticity very similar to soft tissue of the human body.
It is preferable to employ a combination in which the other component is trifunctional or tetrafunctional.

The organic dispersion medium contained in the polyurethane gel serves to enhance the flexibility of the gel. For example, polyethylene glycol or polypropylene glycol in which alkylene oxide ends are blocked with methoxy or ethoxy, or a mixture of both. High-boiling solvents that do not react with polyurethane components, such as oligomers of polymers (which may be block or random), cyclic carbonates such as propylene carbonate, and esterified products of higher alcohols such as n-octyl acetate and n-decyl acetate are used. it can.

The content ratio of the organic dispersion medium is 30 to 90.
% By weight, and if less than 30% by weight, the flexibility of the polyurethane gel becomes insufficient. On the other hand, when the content exceeds 90% by weight, gelation becomes difficult, and a polyurethane gel having shape retaining properties is not formed. The preferred content ratio of the organic dispersion medium varies depending on the type of the dispersion medium, but is 40 to 70% by weight.

As described above, the polyurethane gel containing an organic dispersion medium constituting the elastic gel for a mannequin of the present invention is obtained by measuring the reaction ratio between the polyol component and the polyisocyanate component by the ratio of the terminal functional groups, that is, the value of OH / NCO. By regulating the segment length of the alkylene oxide chain, adjusting the network chain concentration of the three-dimensional network, or adjusting the content of the organic dispersion medium, the value of the 20% modulus at the time of compressive deformation can be reduced by 50%. 750 g / cm ² .

Thus, the value of the 20% modulus is 50 to
An organic dispersion medium-containing polyurethane gel in the range of 750 g / cm ² has flexibility and elasticity very similar to a soft tissue part of a human body, and water as a dispersion medium is scattered from the gel by air drying like a hydrogel. Hard xerogel is preferably used because it does not change with time and maintains its flexibility and elasticity.

In particular, the polyurethane gel containing an organic dispersion medium having a 20% modulus value in the range of 50 to 350 g / cm ² at the time of compressive deformation is a soft material which resembles a fat part of the human body such as a very soft breast. Despite being an extremely flexible polyurethane gel that has fluidity and elasticity and is likely to flow even now containing an organic dispersion medium, it has a three-dimensional network network structure. The deformed polyurethane gel instantly becomes (0.
It has a low modulus repulsion that can be restored to its original shape (within 5 seconds) and exhibits a restoration behavior very similar to a fat part such as the breast. Therefore, this elastic gel is suitably used as a material for manufacturing a part requiring high flexibility, such as the breast, abdomen, and buttocks of a mannequin.

On the other hand, an organic dispersion medium-containing polyurethane gel having a 20% modulus value in the range of 250 to 750 g / cm ² at the time of compressive deformation has flexibility and elasticity very similar to human muscles. , Remove it by applying external force,
Instantly deformed polyurethane gel (within 0.5 seconds)
It has a repulsive force that allows it to be restored to its original shape, and exhibits a restoration behavior very similar to muscle. Therefore, this elastic gel is suitably used as a material for producing a muscular part where the flexibility is not strongly required except for the breast, abdomen, buttocks, etc. of the mannequin.

The polyurethane gel containing an organic dispersion medium is obtained by casting a mixture of a polyol component, a polyisocyanate component and an organic dispersion medium, and reacting the polyol component and the polyisocyanate component under heating or at room temperature. Can be easily obtained. In that case, a reaction amount may be adjusted by adding an appropriate amount (about 0.01 to 1.0% by weight) of a tertiary amine such as dibutyltin dilaurate, trialkylamine or triethylenediamine as a catalyst.

Although the above embodiment has been described with reference to an elastic gel using a polyurethane gel, other elastic gels may be used. For example, a dispersion medium having an affinity for the gel, such as water or alcohol, is added to an acrylic gel or a polyvinyl alcohol gel, and the value of the 20% modulus at the time of compressive deformation is set to 50 to 750 g / cm ^2, and the external pressure is removed. It is theoretically possible to prepare a gel in which the time required to restore the original shape is instantaneous (within 0.5 seconds), and use this. However, in the case of using such a gel, there is a possibility that a dispersion medium such as water may be scattered, and when the mannequin is prepared, the surface of the gel is covered with a film for skin so that the dispersion medium must be prevented from being scattered. No. Nevertheless, in the long term, the scattering of water is inevitable, and there is much fear that it will become xerogel and harden. Furthermore, silicone gels can be used, but are not practical because of the very high cost.

Next, one method of manufacturing a mannequin (female upper body front view) using the elastic gel for a mannequin of the present invention will be described with reference to FIG.

First, a polyurethane gel containing an organic dispersion medium having flexibility and elasticity very similar to muscles of a human body (a value of a 20% modulus at the time of compressive deformation is 250 to 750 g / cm ^2).
Material 30 for forming
(A mixture of an unreacted polyol component, a polyisocyanate component, and an organic dispersion medium) and a polyurethane gel containing an organic dispersion medium having flexibility and elasticity very similar to a fat part such as a human breast (during compression deformation) Of the unreacted polyol component, the polyisocyanate component and the organic dispersion medium to form a second material 40 for forming a gel having a 20% modulus of 50 to 350 g / cm ² smaller than the above gel. Mixtures) are prepared in each case.

Then, as shown in FIG. 1 (a), a soft outer film 1 previously formed into a shape imitating the female upper body front shape is set in a mold 5 of the female upper body front image, A hard plastic core material 2 formed in advance is set inside the outer skin film 1 while taking into account the thickness of the gel layer.

Next, as shown in FIG. 1B, the second material 40 is injected into a portion corresponding to the flexible breast and cured by heating, so that flexibility and elasticity very similar to the breast are obtained. A gel layer of the second organic dispersion medium-containing polyurethane gel 4 is formed.

Further, as shown in FIG. 1 (c), the first material 30 is provided between the core material 2 and the outer film 1, and
Core material 2 and second polyurethane gel containing organic dispersion medium 4
And heat-cured to form a gel layer of the first organic dispersion medium-containing polyurethane gel 3 having flexibility and elasticity very similar to muscle.

As described above, when the gel layer of the second polyurethane gel 4 containing the organic dispersion medium and the gel layer of the first polyurethane gel 3 containing the organic dispersion medium are formed, these gels 3, 3
The outer skin film 1 and the core material 2 are adhesively integrated by the adhesive force of 4, and when the mold is removed as shown in FIG. 1D, a mannequin M of a female upper body front image is obtained.

The soft outer film 1 has a torsional rigidity of 100 to 1100 kgf / cm ² (JIS).
K-6730), a soft synthetic resin film having a thickness of about 50 to 500 μm, such as low- or medium-density polyethylene, ethylene-vinyl acetate, polyurethane, and silicone, is suitably used.

When the brassiere is mounted on the mannequin M of the female upper body front view as described above, the change in the shape of the portion corresponding to the breast and the peripheral portion thereof is caused by the change in the female breast and the peripheral portion when the brassiere is mounted. By looking at the shape change of the mannequin M, the change of the bust shape when a bra is attached to a woman and the fit of the bra can be predicted quite accurately. When attached to a hard mannequin, a realistic flesh feel that could not be obtained at all can be obtained, and the appropriateness of the size and shape of the underwear can be grasped as a real thing.

[0040]

Next, examples and comparative examples of an elastic gel for a mannequin according to the present invention will be described.

Example 1 Polypropylene glycol (Mw: 1500) as a polyol component was added with polypropylene glycol as a polyisocyanate component to trimethylolpropane and reacted with hexamethylene diisocyanate. A functional triisocyanate (Mw: 3100) is blended at a ratio of OH / NCO of 1.5, and 60 g of tetraglyme, in which both ends of tetraethylene oxide are blocked with methoxy groups, is used as an organic dispersion medium. % To prepare a gel-forming material. The gel-forming material was filled in a mold and reacted at 55 ° C. for 5 hours to obtain an elastic gel for mannequin.

A sample obtained by cutting this elastic gel into 5 × 5 × 5 cm was subjected to a compression deformation test (JIS K-) using a 10 mm diameter probe at a compression rate of 5 mm / min.
7208), and a stress-compression deformation curve was obtained. As a result, a curve (a) shown in the graph of FIG. 2 was obtained. Then, when the value of the 20% modulus was calculated based on this curve (a), it was about 550 g / cm ² .

This elastic gel has flexibility and elasticity very similar to muscles of a human body when pressed with a fingertip. After being compressed and deformed by 20% with a 10 mm diameter probe, it is instantaneously (within 0.5 seconds) when the probe is removed. ).

Example 2 The polypropylene glycol and triisocyanate used in Example 1 were replaced with OH / NCO
Was added at a ratio of 2.0, and a gel-forming material was prepared by further containing 65% by weight of tetraglyme.
Then, the gel-forming material was filled in a mold,
The reaction was carried out under the same conditions as described above to obtain an elastic gel for mannequins.

When the stress-compression deformation curve of this elastic gel was determined in the same manner as in Example 1, the curve (b) shown in the graph of FIG. 2 was obtained. Then, when the value of the 20% modulus is calculated based on this curve (b), about 125% is obtained.
g / cm ² .

When this elastic gel is pressed with a fingertip, it has flexibility and elasticity very similar to a fat part such as the breast of a woman, and is extremely flexible, but is compressed by 20% with a 10 mm diameter probe. When the probe was removed after being deformed, it had a soft repulsive force that instantaneously (within 0.5 seconds) was restored.

Comparative Example 1 The polypropylene glycol and triisocyanate used in Example 1 were replaced with OH / NCO
Was mixed at a ratio such that the value of the gel became 2.0 to prepare a gel-forming material. Then, the gel-forming material is filled in a mold,
The reaction was carried out under the same conditions as in Example 1 to obtain an elastic gel.

When a stress-compression deformation curve was determined for this elastic gel in the same manner as in Example 1, a curve (c) shown in the graph of FIG. 2 was obtained. Then, when a value of 20% modulus is calculated based on this curve (c), about 100% is obtained.
It was 0 g / cm ² .

This elastic gel has an OH / NCO value of 2.0 which is the same as that of the elastic gel of Example 2, but does not contain tetraglyme which enhances flexibility. After compressing and deforming by 20% with a 10 mm diameter probe, the probe was removed and slowly restored to its original shape in 1.7 seconds.

Comparative Example 2 The polypropylene glycol and triisocyanate used in Example 1 were replaced with OH / NCO
Was mixed at a ratio such that the value of the gel became 3.0, thereby preparing a gel-forming material. Then, the gel-forming material is filled in a mold,
The reaction was carried out under the same conditions as in Example 1 to obtain an elastic gel.

When a stress-compression deformation curve was determined for this elastic gel in the same manner as in Example 1, the curve (d) shown in the graph of FIG. 2 was obtained. Then, when the value of the 20% modulus is calculated based on this curve (d), about 350
g / cm ² .

This elastic gel has an OH / NCO value of 3.
Since it was set to 0, it was fairly flexible without the addition of tetraglyme, which enhances flexibility, and when pressed with a fingertip, had intermediate flexibility and elasticity between human muscles and fat sites. However, since it does not contain tetraglyme, after compressing and deforming by 20% with a 10 mm diameter probe, removing the probe, it takes 7.5 seconds to gradually restore its original shape, and the muscle and fat parts are considerably different. It showed different restoration behavior.

Example 3 As polyol components, polypropylene glycol (Mw: 1000) and triol obtained by adding polypropylene glycol to glycerin (M
w: 3000) (5: 1 by weight) with the triisocyanate used in Example 1 at a ratio such that the OH / NCO value becomes 2.5. 55 ethylene glycol dimethyl ether
A gel-forming material was prepared in a content of about 10% by weight. And
The gel-forming material was filled in a mold and reacted under the same conditions as in Example 1 to obtain an elastic gel.

The pressure-compression deformation curve of this elastic gel was determined in the same manner as in Example 1, and the value of the 20% modulus was calculated to be about 660 g / cm ² .

When this elastic gel is pressed with a fingertip, it has flexibility and elasticity very similar to muscles of the human body. After being compressed and deformed by 20% with a 10 mm diameter probe, it is instantaneously (within 0.5 seconds) when the probe is removed. ).

Example 4 As a polyol component, PEG-PPG-PE in which polyethylene glycol (PEG) is bonded to both ends of polypropylene glycol (PPG)
G block copolymer (molar ratio 1: 2: 1, Mw: 200
0), the triisocyanate used in Example 1 was replaced with O
A gel-forming material was prepared by mixing H / NCO at a ratio of 1.8 and further containing 65% by weight of diethylene glycol dimethyl ether as an organic dispersion medium.
Then, the gel-forming material was filled in a mold,
The reaction was carried out under the same conditions as described above to obtain an elastic gel.

The pressure-compression deformation curve of this elastic gel was determined in the same manner as in Example 1, and the value of the 20% modulus was calculated to be about 100 g / cm ² .

When this elastic gel is pressed with a fingertip, it has flexibility and elasticity very similar to a fat part of the human body, and is 10 m
After having undergone 20% compression deformation with a probe having a diameter of m, the probe had a repulsive force that was instantaneously restored (within 0.5 seconds) when the probe was removed.

[0059]

As is apparent from the above description, the elastic gel for mannequins of the present invention exhibits flexibility, elasticity and restoring behavior similar to soft tissues of the human body. When wearing the elastic gel, the elastic gel is deformed almost in the same way as the soft tissue of the human body, and it shows a fleshy texture as if it were a living body.From that state, the body shape changes when the underwear is worn on the human body and the underwear It has a remarkable effect that the quality of the fit can be easily estimated.

[Brief description of the drawings]

FIG. 1 is an explanatory view of one method of manufacturing a mannequin with the elastic gel for a mannequin of the present invention.

FIG. 2 is a graph showing the relationship between stress and compressive deformation of the elastic gels for mannequins obtained in Examples 1 and 2 of the present invention and the elastic gels obtained in Comparative Examples 1 and 2.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Skin film 2 Core material 3 First polyurethane gel containing organic dispersion medium (elastic gel for mannequin) 4 Second polyurethane gel containing organic dispersion medium (elastic gel for mannequin) M Mannequin of female upper body front view

Continued on front page F term (reference) 4J002 CH052 CK041 EH036 EL106 GC00 4J034 BA03 BA07 DA01 DB01 DB03 DB05 DB07 DG02 DG03 DG04 DG05 DG06 DG08 DG10 DG12 DG14 HA01 HA02 HA07 HB12 HC03 HC12 HC13 HC17 HC61 HC42 HC42 HC71 KA01 KB04 KC17 KD02 KD12 KE02 LA22 LA33 MA12 MA24 QB13 QB14 QC06 RA03

Claims (6)

[Claims] 1. A reaction between a polyol having an alkylene oxide chain which is liquid at ordinary temperature and / or a polyurethane polyol prepolymer having an alkylene oxide chain which is liquid at ordinary temperature and a polyurethane polyisocyanate prepolymer having an alkylene oxide chain which is liquid at ordinary temperature. A polyurethane gel obtained by subjecting the composition to an organic dispersion medium that enhances the flexibility of the gel.
An elastic gel for a mannequin, wherein the modulus value is in the range of 50 to 750 g / cm ² . 2. The elastic gel for a mannequin according to claim 1, wherein the organic dispersion medium is contained in an amount of 30 to 90% by weight. 3. The organic dispersion medium is an oligomer such as polyethylene glycol or polypropylene glycol in which the terminal of alkylene oxide is blocked with methoxy or ethoxy, a copolymer of the two, a cyclic carbonate such as propylene carbonate, or an esterified product of a higher alcohol. The elastic gel for a mannequin according to claim 1, wherein the elastic gel is one of the following. 4. The value of the 20% modulus at the time of compressive deformation is 25.
0~750g / cm is in the ^second range, mannequin elastic gel of claim 1 having a very similar flexibility and elasticity to the human body muscle. 5. A 20% modulus value during compression deformation is 50.
~350g / cm is in the ^second range, according to claim 1 having a very similar flexibility and resiliency to the site of fat, such as human breast
4. The elastic gel for a mannequin according to 1. 6. A 20% modulus value at the time of compressive deformation is 50.
７750 g / cm ² , and 0.5% when the external pressure is removed.
An elastic gel for mannequins that restores its original shape within seconds.