JPH04119833A - Pad molded product and preparation thereof - Google Patents

Abstract

PURPOSE:To improve the surface touch and to increase surface strength by providing stretchable cloth to the surface of a porous silicone gel. CONSTITUTION:For example, a pad 1 is used in order to hold the posture of the breast after operation and formed by bonding stretchable cloth 3 to the entire surface of a pad main body 2 almost formed in a cup-like shape. The pad main body 2 is composed of a silicone gel and voids 4 are formed therein. As the stretchable cloth 4, cloth freely stretchable longitudinally or laterally, for example, cloth constituting stockings or knitted fabric-like cloth is adapted. The voids 4 are formed so as to be continued to the other mutually adjacent voids 4 and the air permeability of the pad 2 is secured by the voids. By this constitution. The surface touch of the pad 1 is improved and the surface strength thereof can be increased.

Description

[Detailed Description of the Invention] (Purpose of the Invention) <Industrial Application Field> The present invention is applicable to, for example, a body shaping pad used primarily for shaping the body of a woman, and a pad for protecting body parts. This invention relates to pad molded products such as elbow pads, knee pads, baseball mask pads, etc., and methods for manufacturing the same.

<Background of the Invention> For example, when a woman has had her breast removed during surgery for mastopathy, etc., a pad for reshaping the shape of the woman's breasts may be used for the purpose of reshaping the body. Since this orthopedic pad is used as a substitute for a part of the body, it is desirable that the pad has properties as close to those of the body as possible, such as flexibility, elasticity, shape retention, etc.
It is required to meet various conditions such as lightness, tactility and strength. Therefore, a pad made of a porous gel material with open cells has already been developed as a pad that meets some of these conditions (Japanese Utility Model Publication No. 61-4072).
Publication No. 8).

However, pads made of gel-like substances have a sticky surface, which is far from feeling like the skin of the body, and the surface strength is relatively weak. Further, in the case of molded pads such as elbow pads, knee pads, baseball mask pads, etc., which are intended to protect body parts, the above-mentioned feel and surface strength are required.

Therefore, when commercializing such pad molded products,
One issue remained in the surface treatment of the pad.

<Technical matters attempted to be developed> The present invention was made in view of the above background, and
This is an attempt to develop a pad molded product that has flexibility, elasticity, shape retention, and lightness, as well as surface feel and strength, and a method for manufacturing the same.

(Structure of the Invention and <Means for Achieving the Object>) That is, the pad molded product, which is the first invention related to the present application, is characterized by providing a stretchable cloth on the surface of a porous silicone gel.

Further, a pad molded product according to a second invention of the present application is characterized in that, in addition to meeting the above requirements, the pad molded product is a pad for orthopedics.

Further, a pad molded article according to a third invention of the present application is characterized in that, in addition to the above-mentioned requirements, the porous silicone gel contains an oxide-based powder deodorizing agent.

Furthermore, a method for manufacturing a pad molded product, which is a fourth invention according to the present application, includes a molded sheet bonding step of bonding a stretchable cloth and a molded sheet with a water-soluble adhesive interposed, and a step of bonding the molded sheet to a pad molded product. There is a sheet forming process in which the silicone gel stock solution mixed with granules is poured into the molded sheet, and then a pad forming process in which the granules are cured by heating, and the granules in the cured gel are removed. This method is characterized by comprising a porous step of forming pores and a molded sheet removing step of removing the molded sheet.

Furthermore, the method for manufacturing a pad molded product, which is the fifth invention according to the present application, is characterized in that, in addition to the above requirements, in the molded sheet adhesion step, the molded sheet is made of a material that also functions as a water-soluble glue. It is what it is.

Furthermore, in addition to the above-mentioned requirements, the method for producing a pad molded product, which is the sixth invention according to the present application, includes, in the molded sheet adhesion step, moderately moistening the stretchable cloth to ensure adhesion between the stretchable cloth and the molded sheet. It is characterized by something that one does.

Furthermore, in addition to the above-mentioned requirements, the method for producing a pad molded product, which is the seventh invention according to the present application, is characterized in that the granules are sodium chloride, and the porous particles are formed by dissolving the sodium chloride into water to form pores. The present invention is characterized in that the forming step and the molded sheet removing step are carried out simultaneously.

These inventions attempt to achieve the above object.

<Effects of the Invention> In the present invention, since a stretchable cloth is provided on the surface of the silicone gel, the surface feels good to the touch and the strength of the surface is also increased.

Furthermore, since the porous silicone gel contains an oxide powder deodorizing agent, the molded pad has a deodorizing effect, and since it is white, it can be colored to match the skin color.

Furthermore, in the method of manufacturing a pad molded product according to the present invention, a molded sheet is adhered to a stretchable cloth, and this molded sheet is deformed together with the stretchable cloth into an appropriate shape to form a mold, and silicone is Since the gel is cured and the molded sheet is then removed, the desired shape can be molded accurately, and the adhesive state between the stretchable cloth and the silicone gel is also good. In addition, in this process, the water-soluble glue acts as a temporary adhesive between the stretchable fabric and the molded sheet, and the silicone gel solution poured into the molded sheet forms a surface of the stretchable fabric on the side of the molded sheet. It acts to prevent water from seeping into the body.

<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 denotes an orthopedic pad which is an example of the pad molded product of the present invention, and this pad has an approximately bowl-shaped pad body 2 covered with an elastic cloth 3 over its entire surface. The pad body 2 is made of silicone gel, and pores 4 are continuously formed inside. Here, the silicone gel that constitutes the pad body 2 will be explained. This product consists of dimethylsiloxane component units, and is a diorganopolysiloxane (hereinafter referred to as component) that is the stock solution of silicone gel used in the linear formula [+]: RR'2S i O- (R2□S i O) ,,S i
R'. R...[11[However, R is an alkenyl group, R1 is a monovalent hydrocarbon group having no aliphatic unsaturated bond, and R2 is a monovalent aliphatic hydrocarbon group (at least of R2 (50 mol% is a methyl group, and if it has an alkenyl group, its content is 10 mol% or less), and n is the viscosity of this component at 25 °C of 10
0 to 100.000 cSt],
The viscosity at 25°C is 5000 cSt or less,
Organohydrodiene polysiloxane (component B) which is a stock solution of silicone gel having at least three hydrogen atoms directly bonded to Si atoms in one molecule, and hydrogen directly bonded to Si atoms in this component B. Addition reaction type silicone copolymer obtained by curing a mixture adjusted such that the ratio (molar ratio) of the total amount of alkenyl groups contained in component A to the total amount of atoms is 0.1 to 2.0. It is. To explain this silicone gel in more detail, the above component A has a linear molecular structure, and the alkenyl groups R at both ends of one molecule are B
It is a compound that can form a crosslinked structure by adding with a hydrogen atom directly bonded to a Si atom in a component. The alkenyl group present at the end of the molecule is preferably a lower alkenyl group, and in consideration of reactivity, a vinyl group is particularly preferred. Furthermore, R1 present at the end of the molecule is a monovalent hydrocarbon group having no aliphatic unsaturated bonds, and specific examples of such groups include phenyl alkyl groups such as methyl, propyl, and hexyl groups. and fluoroalkyl groups. Above [R2 in formula 11
is a monovalent aliphatic hydrocarbon, and specific examples of such groups include alkyl groups such as methyl, propyl and hexyl groups, and lower alkenyl groups such as vinyl groups. can.

However, at least 50 mol% of R2 is a methyl group, and when R2 is an alkenyl group, the amount of the alkenyl group is preferably 10 mol% or less. If the amount of alkenyl groups exceeds 10 mol %, the crosslinking density becomes too high and the viscosity tends to increase. Also, n is 25 of this A component.
The viscosity at °C is usually 100,100,000c S
t is preferably set within the range of 200 to 20,000 c St . The above B component is a crosslinking agent for A component, and the hydrogen atom directly bonded to the S+ atom is
Component A is cured by addition with the alkenyl group in the component.

Component B only needs to have the above-mentioned action, and component B can have various molecular structures such as linear, branched, cyclic, or network. Further, in addition to a hydrogen atom, an organic group is bonded to the 8i atom in component B, and this organic group is usually a lower alkyl group such as a methyl group. Furthermore, the viscosity of component B at 25°C is usually less than 5000cS, preferably 500cSt.
It is as follows. Examples of such components include organohydrodienesiloxane in which both ends of one molecule are capped with triorganosiloxane groups, copolymers of diorganosiloxane and organohydrogensiloxane, tetraorganotetrahydrodienecyclotetrasiloxane,
Copolymer siloxane consisting of HR'28 i 0 1/2 units and 5i04/2 units, and HR'2Si01/
Mention may be made of copolymer siloxanes consisting of 2 units, R'3s lOl/2 units and SiO472 units.

However, in the above formula, R1 has the same meaning as above. The ratio of the total molar amount of alkenyl groups in component A to the total molar amount of hydrogen atoms directly bonded to Si in component B is usually 0.1 to 2.0. Preferably O0
It is manufactured by mixing and curing component A and component B so that the ratio falls within the range of 1 to 1.0. The curing reaction in this case is usually carried out using a catalyst. The catalyst used here is preferably a platinum-based catalyst, such as finely ground elemental platinum, chloroplatinic acid, platinum oxide, complex salts of platinum and olefins, platinum alcoholade, and chloroplatinic acid and vinylsiloxic acid. Examples include complex salts of Such a complex salt is usually used in an amount of 0.1 ppm (in platinum equivalent, hereinafter the same) or more, preferably o, sp pm or more, based on the total weight of components A and B. Although there is no particular restriction on the upper limit of the amount of such catalyst, for example, when the catalyst is in a liquid state or can be used as a solution, an amount of 200 ppm or less is sufficient. Compounds such as sulfur, phosphorus, tin-based compounds, and amines are so-called catalyst poisons that inhibit crosslinking and curing because they easily react with the platinum-based catalyst. Sulfates such as potassium sulfate, ammonium sulfate, ammonium persulfate, sodium persulfate, sodium sulfite, hydrosulfide, sulfur hydroxyamine, sulfur, carbon disulfide, thioglycolic acid such as sodium sulfoxylate (Rongalit), butyl thioglycolate and its derivatives, mercaptan compounds such as β-mercaptopropionic acid, thioacetic acid, thiourea, sulfonate.

Examples of phosphorus compounds include phosphoric acid, ammonium phosphate, phosphorous acid, sodium hypophosphorous pyrophosphate, acidic sodium metaphosphate, sodium tripolyphosphate, and other phosphoric acids and their salts, and trimethyl phosphoric acid. Examples of tin compounds include various tin chlorides and tin oxides, rhodan salts and stannous sulfate, and examples of amine compounds include iminobispropyl. Examples include amine, triethylamine, 3-gelaminopropylamine, tetramethylethylenediamine, and 3-methoxypropylamine. Then, the above-mentioned components A and B are mixed together, and the mixture is left at room temperature or heated to harden to produce the silicone gel used in the present invention. When curing by heating, the heating temperature is usually 50 to 160°C. The silicone gel thus obtained is JIS K (K-2207-198
The penetration, measured at 0.050g load), usually has a value of 5 to 250. Such a hardness of the silicone gel allows the amount of the above-mentioned A component to form a crosslinked structure with the hydrogen atoms directly bonded to Si in the B component. Alternatively, it can be adjusted by adding in advance a silicone oil having methyl groups at both ends in an amount within the range of 5 to 75% by weight based on the resulting silicone gel. The silicone gel can be prepared as described above, or a commercially available silicone gel can also be used.

Examples of commercially available products that can be used in the present invention include C
F3027. TOUGH-3TOUGH-4, TOUG
Examples include H-5, TOUGH-6 (manufactured by Tote Dow Corning Silicone Co., Ltd.), X32-902/cat 1300 (manufactured by Shin-Etsu Chemical Co., Ltd.), and F25O-121 (manufactured by Nippon Unica Co., Ltd.).

In addition to the above-mentioned components A, B, and catalyst, pigments, curing retardants, flame retardants, fillers, etc. can also be blended within a range that does not impair the properties of the silicone gel. Silicone gel mixed with a filler may also be used.For such materials, Phyllite (registered trademark) manufactured by Nippon Phyllite Co., Ltd. and Expancel sold by the same company may be used.
Examples include Matsumoto Microspheres (manufactured and sold by Matsumoto Yushi Pharmaceutical Co., Ltd.). In addition, elastic cloth 4
1. For example, a fabric that can be stretched vertically and horizontally, such as a fabric for stockings or a stockinette fabric, is used. For convenience of explanation, of the 40 sides of the stretchable fabric, the side that adheres to the silicone gel is defined as the back side, and the opposite side is defined as the front side. Further, the holes 4 are formed continuously with other holes 4 adjacent to each other, thereby ensuring the breathability of the pad body 2. Furthermore, by mixing a super absorbent polymer or a deodorizing agent into the pad body 2, the pad body 2 may have both the function of absorbing sweat and the function of adsorbing bad odors associated with perspiration. As the deodorizing agent, an oxide-based powder deodorizing agent can be used. This is a fine powder deodorizing agent with a particle size on the order of microns or submicrons; for example, it is an aggregate of particles in which zinc oxide, titanium dioxide, and water molecules are tightly bound (Japanese Patent Application Laid-Open No. 63-54935). ). Incidentally, since this aggregate of particles in which zinc oxide, titanium dioxide, and water molecules are tightly bound is white, it can also be colored, for example, in skin color. In addition, oxide-based powder deodorizers include titanium oxide, zinc oxide,
Magnesium oxide, calcium oxide, aluminum oxide, silicon oxide, and other adsorbent oxides containing part or all as main components, and other conventionally known materials can also be used. Incidentally, the use of an oxide-based powder deodorizer as a deodorizer has advantages in terms of manufacturing pad molded products, but this point will be discussed later.

Next, a method of manufacturing such a body shaping pad will be explained. This manufacturing method comprises a molded sheet bonding step, a sheet molding step 1, a pad molding step, a porous formation step, and a molded sheet removal step in this order. Each step will be explained below.

■ Formed sheet removal process In this process, the elastic cloth 3 and the formed sheet 5 are removed using a water-soluble glue 6.
This is the process of adhering with the intervening. First, 0.2 to 1.
Hard vinyl chloride sheet 5a which is a molded sheet 5 with a thickness of Dmm
and a polyvinyl alcohol sheet 6 that is a stretchable cloth 3 that is slightly thicker than the fabric that makes up the stockings and a water-soluble glue 6.
Cut each piece a to a size of 280 x 280 mm.

Next, as shown in FIG. 2(b), soak the elastic cloth 3 in water,
Lightly squeeze this with your hands until no water drops fall. and the second
From the bottom as shown in Figures (c, d): PVC) 5a
Layer the polyvinyl alcohol film 6a and the elastic cloth 3 in this order, and place them on an aluminum plate 7 with a thickness of about 10 mm.
This is then placed in the vulcanizing press machine 8. As a result, the water contained in the stretchable cloth 3 oozes out and dissolves the polyvinyl alcohol film 6a to gelatinize it, thereby adhering the stretchable cloth 3 and the vinyl chloride film 5a. In addition, the amount of water permeated into the stretchable cloth 3 is set to be appropriate so that the component of the polyvinyl alcohol to be dissolved does not seep out to the opposite side (back side) of the stretchable cloth 3. The reason why the polyvinyl alcohol component is not leached to the opposite surface (back surface) of the elastic cloth 30 is that if the polyvinyl alcohol component is present on the back surface that is the adhesive surface with the silicone gel, the silicone gel and the elastic cloth 4 This is because the adhesion with the material decreases. In addition, in relation to this, B of silicone gel stock solution
If a hydrogen siloxane corresponding to the component is applied, crosslinking of the coated surface is promoted and tackiness is reduced.

Note that this also strengthens the adhesion. Furthermore, by applying a brimer, it is possible to strengthen the adhesion to the fabric.

Next, the vulcanization press 8 was removed, and the aluminum plate 7 was removed and dried at 60 to 70'C for 30 minutes.

Furthermore, in this embodiment, the method of gelatinizing the polyvinyl alcohol 6a was to keep the elastic cloth 3 moderately moist, but liquid polyvinyl alcohol or other water-soluble glue components were applied to the molded sheet 5. You may. In this case, the polyvinyl alcohol film 6a is not necessarily required. Further, in this embodiment, the polyvinyl alcohol film 6a has the function of adhering the stretchable cloth 3 and the hard vinyl chloride sheet 5a, and also has the function of preventing the surface of the orthopedic pad 10 from becoming tacky. That is, when pouring the silicone gel stock solution onto the back side of the stretchable cloth 30 in the pad forming process described later, if the stretchable cloth 3 remains as it is, the poured stock solution will penetrate into the front side of the stretchable cloth 3, causing When the elastic fabric 3 is cured, the front surface of the elastic fabric 3 becomes sticky. The polyvinyl alcohol film 6a has the function of suppressing leaching of the silicone gel stock solution to the front side of the elastic cloth 3 and preventing such stickiness. In this example, a hard vinyl chloride sheet 5a was used as the molded sheet 5.
As shown in (a), the polyvinyl alcohol film 6a used as the water-soluble adhesive 6 may be made slightly thicker to form a polyvinyl alcohol sheet 5b) The molded sheet 5 may also be used. That is, in this case, the polyvinyl alcohol sheet 5b serves both as the molded sheet 5 and as the water-soluble adhesive 6.

In addition, in this embodiment, a molded sheet adhesion step was provided as the first step of the manufacturing stage, but for example, a certain amount of polyvinyl alcohol was soaked into the opposite side of the elastic cloth 3 using a doctor blade, roll coater, etc. If a large amount of laminated polyvinyl alcohol-coated stretch cloth 3 is produced by applying the polyvinyl alcohol to a certain extent and drying it, this material can be used to start the next sheet forming step.

(2) Sheet forming process This process is a process of forming the molded sheet 5 bonded to the elastic cloth 3 into the shape of a mold for an orthopedic pad. That is, the third
As shown in Figure (a), a combination of a hard vinyl chloride sheet 5a, a polyvinyl alcohol film 6a, and an elastic cloth 3 is formed into a hemispherical mold using a vacuum forming machine 9. Note that a compressed air pressure molding machine may be used instead of the vacuum molding machine 9, or both of these may be used for molding.

Furthermore, polyvinyl alcohol is easy to use among water-soluble glues because it has heat softening properties.

■Pad forming process Particles 10 are contained in the molded sheet 5 formed in the sheet forming process.
This is a step in which a silicone gel stock solution 11 mixed with is poured in, and then the silicone gel stock solution 11 is heated and cured. The particles 10 to be mixed into the silicone gel stock solution 11 are selected from the following particles depending on the porosity forming method employed. That is, in the heat-disappearing method, in which a heat-disappearing substance is mixed into a silicone gel stock solution and heated to cure, the heat-disappearing substance is heat-dissipated to form pores in the area. In the dry shrinkage method, in which granules are selected and the swollen material mixed in the silicone gel stock solution is dried and shrunk to remove any traces of the swollen material, for example, sodium alginate binds to calcium ions, causing the surface or inside surface to shrink. A swollen body in a water-containing gel state formed by forming water-insoluble calcium alginate can be made into granules. Furthermore, by adding a fraction of an easily volatile liquid with a large dielectric loss coefficient to the silicone gel stock solution and dielectrically heating this in a high frequency electric field,
When applying a microwave heating method in which this liquid is heated, vaporized and expanded, and the silicone gel stock solution is cross-linked and cured, water, ethyl alcohol, or methyl alcohol can be selected as the particles. Furthermore, after mixing soluble particles into a silicone gel stock solution and curing it,
When applying an elution method in which particles are eluted in a solvent to form pores, when the solvent is water, sodium polyacrylate, polyvinyl alcohol, methyl cellulose, carboxymethyl cellulose, polyethylene oxide, polyvinylpyrrolidone, acrylic acid amide, Glue Gelatin Casein, polypeptide, funori, agar, sodium alginate, sodium chloride, glucose sucrose, natural polysaccharide pullulan, xanthan gum, starch, sodium ascorbate, etc. Also, when using acetone, ethanol, methanol, etc. as a solvent, polyvinyl alcohol , methylcellulose, ethylcellulose, water-soluble nylon, shellac, styrene, etc. can be selected as the particles.

Here, we will specifically explain an example in which an elution method using water as a solvent and sodium chloride as granules among the above-mentioned porosity forming methods is applied.

First, as shown in Figure 3(b), sodium chloride is mixed into component A and component B so that the weight ratio of sodium chloride to the silicone gel stock solution is 2:1, and then the mixture of component A and component B is mixed. Mix the ingredients and catalyst. As the sodium chloride, commonly available commercially available crystals having a substantially uniform cubic shape of about 0.4 mm were used. Also, A component and B
When mixing with the ingredients, the oxide-based powder deodorizer 10a is mixed together.

Then, as shown in Figures 3 (c and d), a mixture of sodium chloride and silicone gel stock solution is poured into the molded sheet 5 formed in the formwork shape of the orthopedic pad until it is almost full. Pour it in and put a separately prepared stretch cloth 3 on top.
Close the lid. Incidentally, the front surface of the elastic cloth 3 that can be folded up as a lid is coated with polyvinyl alcohol in advance in order to eliminate the tackiness of the surface as described above. Another method is to first put only sodium chloride into the mold, pour the silicone gel stock solution over the mold, wait for it to permeate to the bottom, and then cover the mold. Incidentally, such a method makes it possible to increase the porosity slightly more than the method described above. Next, as shown in Figure 3(d),
This material is heated and hardened. In addition, in order to remove air taken in during mixing, it is desirable to perform vacuum defoaming before curing. If the amount of the silicone gel stock solution is more or less than the sodium chloride, the sodium chloride will naturally harden during curing and will gradually accumulate from the bottom of the silicone gel stock solution, surrounding it with silicone gel. It hardens in a state where it is filled with the undiluted solution. Alternatively, if pressed from above and below during this time, excess silicone gel stock solution relative to sodium chloride will overflow from between the spaces as if being squeezed out, and the silicone gel stock solution will harden with an appropriate amount of silicone gel stock solution existing between the sodium chloride spaces. Therefore, if it is left for one hour at 80'C, for example, the A component and the B component will react, and a cured product will be obtained in which sodium chloride is deposited almost densely inside. Note that when the amount of the silicone gel stock solution is larger than that of the silicone gel, a layer consisting only of silicone gel will be formed on a part of the surface layer. When the stretchable cloth 3 is provided on the side of the layer consisting only of silicone gel, the adhesion between the stretchable cloth 3 and the silicone gel is improved, but the air permeability is impaired accordingly. In addition, if the specific gravity ratio of sodium chloride and silicone gel stock solution is about 2 to 1 as in the example, a layer consisting only of dinocone gel will not be formed on one surface layer, and the entire layer will be a layer of silicone gel in which sodium chloride is dispersed. . On the other hand, if the amount of sodium chloride increases, mixing with the silicone gel stock solution and vacuum degassing operations become difficult;
Since the number of sodium chloride-occupied areas that become pores increases, a thin network structure can be obtained in the finished state.

In practice, the weight ratio of the weight of sodium chloride to the raw solution of silicone gel is preferably about 1.5:1 to 4:1, preferably about 2:1.

■Porous process, molded sheet removal process The porous process is a process in which pores are formed by removing particles within the hardened gel, and the sheet removal process is a process in which pores are formed by removing particles within the hardened gel.
In this step, the molded sheet 5 is separated from the stretchable cloth 3 by elution.

First, the pad formed in the pad forming process is shown in Fig. 3 (e).
) into a bathtub with agitated warm water as shown. Then repeat boiling, changing the hot water several times. As a result, sodium chloride is eluted into the hot water, and as shown in FIG. 3(f), pores 4, which are traces of removal, are formed in the silicone gel where sodium chloride had been present. Note that when applying the elution method using water as a solvent and sodium chloride as granules as in this example, the oxide-based powder deodorizer 1
Since Oa is an oxide type, unlike other deodorizing agents, it is not affected by water or sodium chloride, and its deodorizing performance does not decrease. Further, as the sodium chloride is eluted and the polyvinyl alcohol film 6a is dissolved in hot water, the molded sheet 5 is separated and removed from the elastic cloth 3. That is, when the elution method using water as a solvent is used as in this example, the porous formation step and the molded sheet removal step proceed simultaneously, and this point is a characteristic configuration of the present invention. There is. It should be noted that the porous formation process and the molded sheet removal process can be carried out simultaneously in this way only when water is used as a solvent in the elution method, and other solvents are applied in the elution method or the heat-disappearance method described above is used. When adopting other porous methods such as dry shrinkage method or microwave heating method,
After the porous process, as a separate process, the molded sheet 5. A sheet removal step is separately provided in which the elastic cloth 3 and the pad body 2 are immersed in a hot water bath to dissolve the water-soluble glue 6 and remove the molded sheet 5.

The pad 1 for body shaping is obtained through each of the above steps.

Although the above five embodiments have been described using the orthopedic pad 1 as an example of a pad molded product, the present invention is also applicable to various body protection pads such as elbow pads, knee pads, and baseball mask pads. It can also be applied to pad molded products, and can be manufactured by a similar manufacturing method.

(Effects of the Invention) In the present invention, since the stretchable cloth 3 is provided on the surface of the silicone gel, a pad molded product with a pad surface that is pleasant to the touch and has high surface strength can be obtained.

In addition, by incorporating an oxide-based powder deodorizing agent into the pad molded product, it is possible to absorb sweat odor and body odor, and when applying an elution method using water as a solvent and sodium chloride granules. The oxide-based powder deodorizing agent itself is stable during the manufacturing process, and its deodorizing performance does not decrease.

Furthermore, in the method of manufacturing a pad molded product according to the present invention, a molded sheet 5 is adhered to a stretchable cloth 3, and this molded sheet 5 is deformed together with the stretchable cloth 3 into an appropriate shape to form a mold, so to speak. By curing the silicone gel in the mold and then removing the molding sheet, the desired shape can be molded accurately, and the adhesive between the stretchable fabric and the silicone gel is also good. .

In addition, a polyvinyl alcohol sheet 5 is used as the molded sheet 5.
If a is applied, this molded sheet 5 itself becomes a water-soluble adhesive 6.
It can be expected to be a rational manufacturing method because it also functions as a.

Furthermore, when applying an elution method in which sodium chloride is eluted using water as a porosity-forming method, the porosity-forming process and the sheet removal process can proceed simultaneously.
This is an efficient and rational manufacturing method.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a pad for orthopedics which is an example of the pad molded product of the present invention. FIGS. 2 and 3 are explanatory diagrams showing step-by-step the manufacturing method of the pad molded product of the present invention, of which FIG. 2 shows the steps up to pasting the elastic cloth on the molded sheet; FIG. 3 shows the process of forming the molded sheet to which the elastic cloth is pasted into a predetermined shape, using this as a mold material, and producing the pad molded product of the present invention. ■ 1; Body shaping pad 2; Pad body 3; Stretchable cloth 4; Holes 5; Molded sheet 5a; Hard vinyl chloride sheet 5b; Polyvinyl alcohol sheet 6; Water-soluble glue 6a; Polyvinyl alcohol film 7; Aluminum plate 8: Vulcanization press machine 9; Vacuum forming machine 0; Granules Oa; Oxide-based powder deodorizer 1; Silicone gel stock solution/Tokon # 1; Body shaping pad 2; Pad body 3; Stretchable cloth 4 ; Voids 5; Molded sheet 6; Water-soluble glue 10; Granules 10a; Oxide-based powder deodorizer 11 Niji 1j Corn gel stock solution

Claims (7)

[Claims] (1) A pad molded product characterized by having a stretchable cloth provided on the surface of a porous silicone gel. (2) The pad molded product according to claim 1, wherein the pad molded product is a pad for orthopedics. (3) The pad molded article according to claim 1 or 2, wherein the porous silicone gel contains an oxide-based powder deodorizing agent. (4) A molded sheet adhesion step in which a stretchable cloth and a molded sheet are bonded with a water-soluble adhesive interposed, a sheet forming step in which the molded sheet is molded into the formwork shape of a pad molded product, and the molded sheet is formed into a molded sheet. A pad forming step in which a silicone gel stock solution mixed with particles is poured into the sheet and then cured by heating, a porous step in which the particles in the cured gel are removed to form pores, and the molded sheet is removed. A method for manufacturing a pad molded product, comprising a molded sheet removing step. (5) The method for manufacturing a pad molded product according to claim 4, wherein in the molded sheet bonding step, the molded sheet is made of a material that also functions as a water-soluble glue. (6) The method for manufacturing a pad molded product according to claim 4 or 5, characterized in that in the molded sheet bonding step, the stretchable cloth and the molded sheet are bonded by appropriately moistening the stretchable cloth. (7) The granules are sodium chloride, and the porous step of eluting the sodium chloride into water to form pores and the molded sheet removing step are carried out simultaneously. 4. The method for producing a pad molded product according to 4, 5 or 6.