JP2006312793A - Clothing pad and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clothing pad designed so as to become sufficiently profitable even in manufacture of a wide variety of products in small quantities because of requirement for abundance in variation and be reasonably supplied to users. <P>SOLUTION: The clothing pad comprises a member used as a pad obtained by encapsulating packing material 3 in the inside of a skin body 2 comprising two sheets (a wearer's body-adhering-side skin sheet 21 and a face-side skin sheet 22) the peripheries of which are sealed; wherein the body-adhering-side skin sheet 21 of the two skin sheets is provided with pre-stress drawing the peripheral part of the sheet toward its center part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pad for clothing suitable for use for cosmetic purposes and safety purposes, as well as medical and therapeutic purposes, and a method for manufacturing the same.

For example, cosmetic padding may incorporate a pad material for shaping to shape the body or enhance the bust or hip, and several technical proposals have been made regarding its manufacturing method. (For example, see Patent Documents 1, 2, and 3).
By the way, about this kind of pad material, in order to obtain a more natural wearing feeling, various technical ideas have been put into the product itself including the material itself.

In other words, since this type of pad material actually has a different body shape for each user, it is desirable that a pad material of an optimum shape is provided for each user. Of course, such a request exists not only for cosmetic purposes but also for safety purposes and medical / therapeutic purposes. However, in order to provide pad members corresponding to each individual body shape, it is impossible to provide pad members in consideration of production efficiency, cost, etc. In reality, the same standard is expected with a certain number of products The form to do is almost. For this reason, it is the limit to obtain the optimal product to classify the body types that exist in a wide variety, for example, from several to a dozen or so, manufacture pad materials suitable for each standard, and provide them to the market. Has been accepted.
JP 9-38124 A JP-A-8-209409 JP 2005-66163 A

  The present invention has been made in recognition of such a background, and is not profitable even in the case of multi-product and small-quantity production in order to seek more abundant variations without accepting the limitations described above. This is an attempt to develop a new accessory pad and a method for manufacturing the same that can be reasonably provided to users (users).

That is, the accessory pad according to claim 1 is a member used as a pad in which a filler is enclosed inside a skin body formed by two skin sheets whose peripheral edges are sealed. The skin sheet close to the body is characterized in that it is formed with a prestress that draws the peripheral edge toward the center.
According to the present invention, the skin sheet on the close contact side with the body acts so as to stretch toward the center, and therefore, a phenomenon occurs in which the peripheral edge that tends to be relatively thin curls to the opposite side. And is stable when incorporated in body suits.

In addition to the requirements of claim 1, the front surface skin sheet that does not adhere to the body of the skin sheet includes a thermoplastic resin sheet and a knit sheet. It is characterized by being comprised of the material which laminated.
According to the present invention, the front side skin sheet is covered with the knit sheet, and the wearing feeling and the like are excellent.

Furthermore, in addition to the requirement of claim 2, the material pad applied to the component member according to claim 3 is:
(A) Applying a urethane resin having a hardness of 30 to 90 (JIS A) to the resin sheet in the skin sheet on the close contact side and the skin sheet on the front side,
(B) applying a stretchable synthetic resin fiber fabric to the knit sheet;
(C) Applying a silicone gel containing a hollow sphere-shaped filler having a penetration of 100 to 200 [JIS K2207 (50 g load)] and a specific gravity of 0.6 to 0.7 to the filler,
One or more of the above (A) to (C) are selected.
According to the present invention, the accessory pad is excellent in durability, and a more natural wearing feeling can be obtained by setting the physical properties and the like within such a numerical range.

Furthermore, the manufacturing method of the accessory pad according to claim 4 includes:
A mold sheet in which a desired mold cavity is formed in a state in which a shape-holding sheet having a shape-retaining property and a skin sheet are laminated in a temporarily fixed shape,
To cover the mold cavity in this matrix sheet, the skin sheet on the close contact side integrated with the matrix sheet,
Prepare as a material a gel-like filler to be injected into the mold cavity,
Next, in the sealing process,
Overlaying the close-up side skin sheet on the mold cavity side of the matrix sheet, sealing the periphery of the mold cavity, securing an unsealed inlet in part, forming a bag-like skin body,
Next, in the injection step,
The uncured filler is injected into the epidermis from the injection port, and the injection amount is less than the mold cavity volume,
Then, in the curing process,
Keeping the inlet closed, and without the presence of air in the epidermis, the filler filled in the heating atmosphere is cured while keeping the filler filled,
Next, in the mold release step,
It is characterized in that the front-side skin sheet and the shape-retaining sheet are peeled off.
According to the present invention, since the shape-holding sheets having shape-retaining properties are sequentially manufactured, many product shape variations can be obtained at low cost by using the molding shape of the matrix sheet.

Furthermore, in addition to the requirements of claim 4, the method for manufacturing an accessory pad according to claim 5 includes an air exclusion step between the injection step and the curing step.
The skin sheet on the close contact side is pressed to the mold cavity side, the air remaining in the epidermis is excluded from the inlet, and the epidermis is filled with the filler, and then the filler is cured. It is characterized by a plan.
According to the present invention, a product in which air in the epidermis can be eliminated by the air exclusion step and prestress is applied to draw the peripheral portion toward the center in a state where no bubbles enter the filler.

Furthermore, the manufacturing method of the accessory pad according to claim 6 is in addition to the requirement according to claim 4 or 5,
The process includes
(a) In the preparation step and the sealing step, a release paper is provided on the close-up side skin sheet in advance, and the skin sheet is reinforced with the release paper, and the skin sheet is stacked on the base sheet to seal the periphery of the mold cavity. processing,
(b) In the curing step, after filling, for a certain period of time, the filling portion of the epidermis is directed upward, and the filler is unevenly distributed downward.
(c) In performing the edge filling promotion process according to (b), the cusp cross-section filling promotion process for arranging the cusp cross-section of the pad below,
(d) In the injection step, injection is performed by inserting a nozzle for supplying a filler into the injection port, and after injection, a liquid sag prevention treatment for preventing liquid sag by pulling out the nozzle,
(e) In the curing step, using the viscosity of the filler itself injected into the epidermis, a self-closing process that seals the injection port,
One or a plurality of processes (a) to (e) above are incorporated.
According to the present invention, more appropriate processing can be performed in the manufacturing process of the skin body, the filling stage of the filler, and the curing stage of the filler.

  By adopting the above-mentioned means, the present invention makes it possible to produce a variety of small-sized accessories pads while suppressing an increase in cost.

  An example of the best mode for carrying out the present invention is as described in the following examples, and is obtained from examples modified within the technical concept.

  Hereinafter, the present invention will be described in detail based on illustrated embodiments. In this description, the body pad is first described, and the manufacturing method is described while the manufacturing procedure is described. Reference numeral 1 denotes an accessory pad according to the present invention, which is incorporated in a hip part of a body suit S or the like as shown in FIG. This accessory pad 1 is configured by filling a bag-like skin body 2 with a filler 3 such as a gel substance, and in this embodiment, the thickness decreases as it goes to the periphery. An irregular oval shape is taken as an example in a flat plan view.

  First, when the finished body pad is viewed, the epidermis body 2 is formed in a sealed bag shape in which the skin sheet 21 on the close contact side and the skin sheet 22 on the front side are sealed in the seal portion 11, and the inside is filled. The material 3 is closely packed. In addition, when looking at the cross-sectional direction of the accessory pad 1, for example, the lower part in FIG. 1 is in a state where the cross-sectional portion is sharper than the other, and this portion is a pointed cross-sectional portion 12 and the opposite side. The upper portion is configured as a blunt cross-section portion 13, and this portion is also sealed in a state where the filler 3 is sufficiently distributed.

  The skin sheet 21 on the close contact side of the epidermis 2 has a prestress that draws the peripheral edge of the accessory pad 1 toward the center, as indicated by a vector P in FIG. 1 and FIG. 4B. It takes a shape that the center part is somewhat depressed in the natural state. Of course, although the filler 3 itself is cured, it is a gel-like material, so that there is no sufficient shape retaining property, and the central portion of the skin sheet 21 on the close contact side is not recessed depending on the shape and mounting mode. There may be a state where the entire surface is flat or, further, the surroundings hang down.

  Describing the material of the accessory pad 1, first, the epidermis 2 is different in part from the skin sheet 21 on the close contact side and the skin sheet 22 on the front side. First, the skin sheet 21 on the close contact side is a polyurethane film having a thickness of about 100 μm and a hardness of about 75 (JIS A), for example, and has a heat seal property. The skin sheet 21 on the close contact side can be applied in a thickness range of 50 to 200 μm and a hardness in a range of 30 to 90 (JIS A). As such a polyurethane film, for example, the product name “Esmer URS” manufactured by Nippon Matai Co., Ltd. can be applied.

  Further, the front side skin sheet 22 is obtained by laminating a knit sheet 22B on the resin sheet 22A similar to the close side skin sheet 21, and the knit sheet 22B is exposed on the front side surface. In the state, the respective skin sheets 21 and 22 are thermally welded at the seal portion 11. In this embodiment, as the knit sheet 22B, for example, a stretchable nylon fiber fabric is applied. As such a nylon fiber fabric, for example, the product name “Nylon Tendon 2000” manufactured by Toray Industries, Inc. can be applied.

The material filled inside is a silicone gel filled with a hollow sphere-shaped filler to reduce the weight of the product, and its properties are 0.6-0.7 specific gravity, needle A range of about 100 to 200 [JIS K2207 (50 g load)] is suitable, and a range of 145 to 155 [JIS K2207 (50 g load)] is particularly preferable.
As the silicone gel, the product name “CF5106” manufactured by Toray Dow Corning Co., Ltd. is applied. As the filler, for example, the product name “Expancel 092” manufactured by Nippon Philite Co., Ltd. can be applied. . In addition, the silicone gel is composed of liquid A and liquid B, and before use, the liquid A, liquid B, and filler are mixed at a ratio of 58.8: 39.2: 2, and the above-described ratio is determined according to the mixing ratio. The desired specific gravity and hardness are set.

  Such an accessory pad 1 is used, for example, in such a manner that the pad 1 is sewn into the body suit S, stored in a pocket or the like formed therein, and in close contact with the user's skin. .

Next, a method for manufacturing this accessory pad will be described.
[Preparation process]
In the preparation step, necessary materials are prepared. First, a matrix sheet 25 for supplying the front side skin sheet 22 is prepared. In the blank state, the matrix sheet 25 is supplied by laminating the front side skin sheet 22 in a temporarily fixed state to the shape holding sheet 23 to which a flat polyethylene terephthalate sheet or the like is applied. . The temporarily fixed state means a state in which the front side skin sheet 22 can be easily peeled from the shape holding sheet 23 without being deformed and broken by hand peeling or the like. The front side skin sheet 22 is laminated to the shape holding sheet 23 in such a manner that the knit sheet 22B side of the front side skin sheet 22 is laminated on the shape holding sheet 23 side, and the resin sheet 22A is knit on the upper surface. The sheet 22B is configured to be almost integrally laminated (see FIG. 2A).

  A mold cavity 25A that is recessed from the starting shape of such a flat matrix sheet 25 according to the shape of the appropriate accessory pad 1 is formed at the stage of starting the manufacturing operation. The formation of the mold cavity 25A in the mother sheet 25 is formed by the molding cavity 41 in the mold 4. For example, the flat mother sheet 25 is deformed by vacuum forming or the like so as to include the mold cavity 25A. It is processed (see FIG. 2 (a)).

  On the other hand, the skin sheet 21 on the close contact side is used so as to cover the mold cavity 25A side of the matrix sheet 25, and the skin sheet 21 on the close contact side is, for example, a release paper with respect to a sheet such as a polyurethane film. 21A is laminated, and a certain “stiffness” is imparted to the material during handling (see FIG. 2B).

  Further, the filler 3 filled in the skin body 2 is an example of silicone gel, and specifically, the above-mentioned material is used (see FIG. 2C).

[Sealing process]
After preparing such a material, in the sealing step, the skin sheet 21 on the close contact side is superimposed on the mold cavity 25A side of the mother sheet 25, the periphery of the mold cavity 25A is sealed to form the peripheral seal portion 11A, An unsealed inlet 11B is secured in part, and the bag-shaped skin body 2 is formed as a whole. At this time, it is desirable that the injection port 11B is opened to the blunt cross-section portion 13 on the opposite side when the sharp cross-section portion 12 is present.

[Injection process]
Next, the uncured filler 3 is injected into the epidermis 2 from the injection port 11B. In this operation, it is desirable to prevent the filler 3 from the filling nozzle 30 from adhering to the inner surface of the injection port 11B. Therefore, it is preferable to use a filling nozzle 30 as shown in FIGS. 2 (c) and 3 (b). The filling nozzle 30 is a double-tubular combination of an injection tube 31 and a protective tube 32. Has been. In addition, after injecting the filler 3, it is more preferable that only the injection tube 31 is further withdrawn from the protection tube 32 while the protection tube 32 remains.
The injection amount is set to be sufficiently smaller than the volume of the mold cavity 25A formed by the mother sheet 25. Specifically, the volume is preferably about 40 to 60% centering on 50%.

[Edge edge filling acceleration treatment (point cross section filling acceleration treatment)]
In such a state, the edge portion filling promotion process is further performed so that the filler 3 is sufficiently distributed to the inner inner peripheral edge of the epidermis 2. That is, for example, when waiting for the filling material 3 to stand in a state where it is leaned as shown in FIG. It spreads enough through the gaps in the body 2. Moreover, it is possible to perform the site | parts, such as other blunt cross-section parts 13, by the same process, and to ensure the spread of the filler 3. FIG.
In addition, the filling acceleration | stimulation process of the edge part by the filler 3 of the edge part by such an uncured filler 3 is implemented before isolation | separation of the hollow sphere-shaped filler in a silicone gel generate | occur | produces.

[Air exclusion process]
After such filling, as shown in FIG. 4B, in the air exclusion process, the uncured filler 3 is moved so as to be pushed upward from the bottom toward the inlet 11B, and remains in the epidermis 2 The air is removed from the inlet 11B to the outside, and the inside of the epidermis 2 is filled with the filler 3. The release paper 21A provided on the skin sheet 21 on the close contact side is removed by this step.

[Self-closing process] Refer to FIG. 4B. After such an air exclusion step, the filler 3 is hardened. At that time, the filler 3 in the epidermis 2 is lowered, and the inlet 11B is again filled. It is necessary to prevent inhalation of air from the air, but in this operation, the inlet 11B can be separately closed by using a pinch or the like, or can be processed in a self-closed state by using the viscosity of the filler 3. . That is, in this self-closing process, the filler 3 is slightly pushed out into the injection port 11B. On the other hand, since the volume of the filler 3 itself is smaller than the cavity volume of the mold cavity 25A, the filler 3 is injected into the injection port 11B. The negative pressure action acts to maintain a close contact between the close-side skin sheet 21 and the front-side skin sheet 22 at the site of the injection port 11B.

[Curing process]
Next, in the curing step, the filler 3 injected in the heating atmosphere is cured while the inlet 11B is kept closed. In this case, it is preferable to hold the matrix sheet 25 side down and press it with the pressing tool 5 from above the close contact side skin sheet 21 side. Specifically, for example, as shown in FIG. 5A, a relatively soft and conformable urethane sheet, an elastic pad 51 such as a urethane pad is applied, and a pressing plate 52 having sufficient rigidity is used. After pressing the upper surface of the skin sheet 21 on the close contact side from the elastic pad 51 to level the skin surface, the elastic pad 51 and the pressing plate 52 are removed. Thereafter, as shown in FIG. 5 (b), it is desirable to cure in a state where only the pressing plate 52 is placed again in order to prevent the end of the base sheet 25 from warping. The curing time is about 90 minutes in a heated atmosphere at about 70 ° C.

[Release process]
After curing in such a state, the product is taken out in a mold release process. It should be noted that at least before the curing process starts or after the end, before the mold release process, the portion of the inlet 11B is sealed and closed as shown as an inlet seal portion 11C. Then, in the mold release step, the vicinity of the seal portion 11 is cut into a predetermined shape, and the front side skin sheet 22 and the shape holding sheet 23 are peeled off. Of course, if it is necessary to take a large amount of seam due to the need for post-processing by the user, the trimming process may be omitted.

[Other Examples]
In addition, although the accessory pad 1 of the present invention has been described with reference to an application example as a cosmetic dressing pad, for example, it can also be used as a protector pad that acts as a protector during decoration, In addition, it can be used as a medical pad for protecting an affected part of the body surface for medical purposes, such as a pressure ulcer site at the time of occurrence of pressure ulcer. Therefore, an appropriate shape suitable for them can be taken. For example, the embodiment shown in FIG. 6A has a so-called donut shape, and can be used to protect the pressure ulcer site by applying it to a peripheral edge such as a partial pressure ulcer. Similarly, a substantially U-shaped pad or the like shown in FIG. 6B is suitable for use in protecting the back neck and the like from the shoulder in athletic competitions, for example. For example, in such a shape, in the concept of the peripheral seal portion 11A, the seal portion provided at the peripheral portion of the center opening of the donut shape can also be understood as the peripheral seal portion 11A.

It is a perspective view which shows the use condition of the pad for jewelry of this invention, and the laminated structure of the pad for jewelry. It is explanatory drawing which shows the preparatory process of the manufacturing method of the jewelry pad of this invention. It is explanatory drawing which shows a sealing process and an injection | pouring process same as the above. It is explanatory drawing which shows an edge part filling acceleration | stimulation process process, an air exclusion process, and a self-closing process process same as the above. It is explanatory drawing which shows a hardening process and a mold release process same as the above. It is a perspective view which shows two other types of Example of the pad for clothing of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pad for decoration 11 Seal part 11A Perimeter seal part 11B Inlet 11C Inlet seal part 12 Point cross-section 13 Blunt cross-section 2 Skin body 21 Skin sheet 21A on the close side 21A Release paper 22 Skin sheet 22A on the front side Resin Sheet 22B Knit sheet 23 Shape holding sheet 25 Master mold sheet 25A Mold cavity 3 Filling material 30 Filling nozzle 31 Injection pipe 32 Protective tube 4 Mold 41 Molding cavity 5 Pressing tool 51 Elastic pad 52 Holding plate P Vector (Prestress)
S body suit

Claims (6)

For the skin body formed by two skin sheets whose peripheral edges are sealed, a filler is enclosed inside, and used as a pad,
Of the skin sheets, the skin sheet on the side close to the body is formed with a prestress that draws the peripheral edge toward the center, and is a pad for clothing.   The front skin sheet that is not in close contact with the body among the skin sheets is composed of a material obtained by laminating a thermoplastic resin sheet and a knit sheet. Pad. The material applied in the component is
(A) Applying a urethane resin having a hardness of 30 to 90 (JIS A) to the resin sheet in the skin sheet on the close contact side and the skin sheet on the front side,
(B) applying a stretchable synthetic resin fiber fabric to the knit sheet;
(C) Applying a silicone gel containing a hollow sphere-shaped filler having a penetration of 100 to 200 [JIS K2207 (50 g load)] and a specific gravity of 0.6 to 0.7 to the filler,
One or more of the above (A) to (C) are selected. In the preparation process,
A mold sheet in which a desired mold cavity is formed in a state in which a shape-holding sheet having a shape-retaining property and a skin sheet are laminated in a temporarily fixed shape,
To cover the mold cavity in this matrix sheet, the skin sheet on the close contact side integrated with the matrix sheet,
Prepare as a material a gel-like filler to be injected into the mold cavity,
Next, in the sealing process,
Overlaying the close-up side skin sheet on the mold cavity side of the matrix sheet, sealing the periphery of the mold cavity, securing an unsealed inlet in part, forming a bag-like skin body,
Next, in the injection step,
The uncured filler is injected into the epidermis from the injection port, and the injection amount is less than the mold cavity volume,
Then, in the curing process,
Keeping the inlet closed, and without the presence of air in the epidermis, the filler filled in the heating atmosphere is cured while keeping the filler filled,
Next, in the mold release step,
A method for manufacturing a body pad, wherein the outer skin sheet and the shape-retaining sheet are peeled off. Between the injection step and the curing step, an air exclusion step is provided,
The skin sheet on the close contact side is pressed to the mold cavity side, the air remaining in the epidermis is excluded from the inlet, and the epidermis is filled with the filler, and then the filler is cured. The manufacturing method of the pad for jewelry of Claim 4 characterized by the above-mentioned. The process includes
(a) In the preparation step and the sealing step, a release paper is provided on the close-up side skin sheet in advance, and the skin sheet is reinforced with the release paper, and the skin sheet is stacked on the base sheet to seal the periphery of the mold cavity. processing,
(b) In the curing step, after filling, for a certain period of time, the filling portion of the epidermis is directed upward, and the filler is unevenly distributed downward.
(c) In performing the edge filling promotion process according to (b), the cusp cross-section filling promotion process for arranging the cusp cross-section of the pad below,
(d) In the injection step, injection is performed by inserting a nozzle for supplying a filler into the injection port, and after injection, a liquid sag prevention treatment for preventing liquid sag by pulling out the nozzle,
(e) In the curing step, using the viscosity of the filler itself injected into the epidermis, a self-closing process that seals the injection port,
6. The method of manufacturing a body pad according to claim 4 or 5, wherein one or a plurality of the processes (a) to (e) are incorporated.

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