JP2001020116A - Composite interlining material for clothes and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an interlining material for clothes usable for pat, etc., and producible at a relatively low cost. SOLUTION: An NiTi shape memory alloy wire having memorized straight- line shape and exhibiting super-elastic property at room temperature is coated with a resin to obtain the objective composite interlining material 1. The resin of the composite interlining material 1 is formed under heating to fix a shape curved in longitudinal direction at room temperature. The cross-section of the composite interlining material 1 preferably has a circular, oval or elliptic form or a combination of the above forms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite core material for clothing used as a material for clothing and a method for producing the same, and more particularly, to a composite core material used for shaping or retaining the shape of various types of clothing. And a continuous manufacturing method for economically manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, many proposals have been made to arrange a shape memory alloy wire at a specific portion of clothing in order to shape or maintain the shape of clothing. For example, as shown in FIG. 7, many proposals have been made to arrange a linear body of a shape memory alloy on the shoulder pad 5 of the garment 4 to prevent the shoulder from collapsing and improve the formability of the garment, and Some have been put to practical use. Conventionally, the core material of the shoulder pad is often a wire made of a shape memory alloy stored in advance in the curved shape of the shoulder opening 6 based on body temperature (for example, Japanese Utility Model Application Laid-Open No. 63-11519).

As another example, there has been proposed a pad forming part in which a shape memory member is fixed to a plate-like flexible member. The shape memory member may be a wire (a wire shape) or a shape memory mesh, and each of these shape memory members has a predetermined shape before being fixed to a flexible member made of a plate-like cloth, resin, or the like. (For example, Japanese Patent Application Laid-Open No. 8-81812).

As described above, a conventional shape memory alloy material as a core material for a pad is formed in a form conforming to the shape of the shoulder opening 6 and the like.
It is stored in a curved shape in advance. That is, in the conventional manufacturing of a shoulder opening pad or the like for inserting a shape memory alloy material as a core material of clothing, each core material is memorized into a predetermined curved shape using a mold or the like, and then put into a pad. Is adopted. Therefore, the production of the shape memory alloy material as the core material of the garment is a factor that requires many man-hours such as cutting, fixing to a mold, heat treatment of the material, and the like, and becomes expensive.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to develop a manufacturing method capable of supplying a core material for clothing, for example, a core pad such as a shoulder pad of clothing at a relatively low price. An object of the present invention is to find a core material for clothing that is not inferior in use to the obtained core material.

[0006]

According to a first aspect of the present invention, there is provided a composite in which a NiTi-based shape memory alloy wire which is linearly shaped and has superelastic properties at room temperature is coated with a resin. A core material for clothing, wherein the core material is formed into a shape curved in the longitudinal direction at room temperature by thermoforming a resin portion of the composite core material.

According to a second aspect of the present invention, the cross-sectional shape of the composite core material according to the first aspect is a circle, an oval, an ellipse, or a shape in which a plurality of them are joined. The composite core material for clothing according to the above.

According to a third aspect of the present invention, the degree of curvature in the longitudinal direction of the composite core material of the first aspect is equal to or greater than the degree of curvature radius of the site shape of the garment to which the composite core material is mounted. The composite core material for clothing according to claim 1 or 2, characterized in that:

According to a fourth aspect of the present invention, there is provided the composite for clothing according to any one of claims 1 to 3, wherein the composite core for clothing according to the first aspect is a composite core for a pad. It is a core material.

A fifth aspect of the present invention is a method for continuously manufacturing a composite core material for clothing according to the first aspect, wherein the step of linearly memorizing the NiTi-based shape memory alloy wire includes the steps of: Extruding a resin onto the shape memory alloy wire stored under heating to form a composite, heating the resin portion of the composite to form a coil having a predetermined curve, A method for producing a composite core material for clothing, comprising a step of cutting into a predetermined length to obtain a composite core material having a shape curved in the longitudinal direction at room temperature.

According to a sixth aspect of the present invention, there is provided a method of manufacturing a composite core material for clothing according to the fifth aspect, wherein the composite core material for clothing is a composite core material for a pad. It is.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, each of the above-mentioned inventions will be described in detail. The composite core material for clothing according to the invention of claim 1 is a composite core material obtained by coating a resin with a NiTi-based shape memory alloy wire that has been subjected to shape memory processing in a straight line and has superelastic properties at room temperature in advance, The resin part of the composite core material is formed into a shape curved in the longitudinal direction at room temperature by thermoforming.

That is, the composite core material for clothing according to the present invention comprises:
As shown in FIG. 1, at room temperature, it has a shape curved in the longitudinal direction with a radius of curvature R ₁ , but Ni that has been previously subjected to shape memory processing in a linear shape and has superelastic properties at room temperature
The Ti-based shape memory alloy wire is covered with a resin, and the resin portion is thermoformed to have a predetermined curvature. Therefore, the composite core material for clothing of the present invention is a composite NiTi.
Since the shape memory alloy wire is pre-stored in a linear shape, the stress that tends to return to the original linear shape is always acting. The curved shape is maintained.

In the present invention, the NiTi-based shape memory alloy wire is composed of 50.5 to 51.0 at% of Ni and the remaining Ti of NiTi.
Alloy or Ni 49-51 at%-Co, C to residual Ti
This is an alloy obtained by adding one or two kinds of r, V, and Fe in a total of 2 at% or less, which is linearly stored at a temperature of 300 to 600 ° C. This wire has superelastic properties at room temperature where clothing is used. This N in the composite core material according to the present invention
Since the iTi-based shape memory alloy wire has superelastic properties at room temperature where clothing is used, when inserted into clothing,
It has the effect of adjusting to the pat and body shape of clothes. In other words, taking the shoulder pad of clothes as an example, in the case of winter clothes, it is considered that the temperature is considerably lower than the body temperature outdoors, but even in this case, this alloy wire has superelastic properties. Therefore, even in cold weather, the elasticity of the shoulder pads is maintained and the shape of the clothes is adjusted.

The coating resin in the present invention is a thermoplastic resin such as nylon, FEP, urethane or the like which can be extruded under heating (150 to 250 ° C.). Although the radius of curvature of the composite core material of the present invention depends on the thickness of the alloy wire in the resin, a thin wire (diameter of 0.3 to 0.4 mmφ) has a radius of 200 mm.
Those having a radius of curvature of about mmR to about 100 mmR can be used. Thick wire (diameter 0.6-0.7mmφ)
In the case of the above, it is preferable that the garment is close to the radius of curvature of the attachment portion of the garment.

As shown in FIG. 6, a resin ball 15 made of epoxy resin or the like is provided at both ends of the core for the purpose of protecting the terminal and making it easy to use.
The cap 16 is attached. The difference between the curved composite core material for clothes according to the present invention and the conventional curved resin-coated composite core material is that the resin according to the present invention is formed by peeling the resin to form an internal NiTi-based shape memory alloy. Whereas the wire becomes the original straight line of the shape memory, the conventional one keeps the internal shape memory alloy wire curved.

The composite core material for clothing of the present invention can be used as a core material for shaping or shape-retaining various garments.
For example, for orthopedic purposes, the core material of shoulder pads such as clothes and high-quality shirts, and for shape retention, shirt collar (around the neck)
Core material and the core material of the upper part of the bra. As shown in FIG. 1, this composite core material is a composite core material composed of a NiTi-based shape memory alloy wire and a resin, and has a curved shape with a radius of curvature R ₁ at room temperature. As shown in FIG. 3, the direction in which the pad is incorporated into the shoulder opening 6 in the radius of curvature R ₀ is determined by using this bend, and stable work can be performed. In addition, since this composite core material is resin-coated, it is heat-sealed to a pad material or the like, or sewn.
It can be inserted into various garments in a known manner.

The invention of claim 2 is an embodiment relating to the cross-sectional shape of the composite core material. That is, the cross-sectional shape of the composite core material is a circle, an ellipse, or an ellipse, or a shape in which a plurality of them are joined. FIG. 2 shows some example embodiments. In FIG. 2A, the cross-sectional shape of the composite core material is circular, and a circular NiTi-based shape memory alloy wire is included at the center. (B) is obtained by arranging and bonding (or fusing) a plurality of composite core materials of (a).
(C) and (d) are obtained by simultaneously coating a plurality of shape memory alloy wires with a resin and integrally forming them. (E) is a flat shape memory alloy wire covered with a resin to finish the entire composite flat. The cross-sectional shape of the composite core material according to the present invention is not limited to these examples, and can be widely varied according to the design of the clothing to be inserted.
The rigidity of the composite core material itself can be improved by increasing the number of NiTi-based shape memory alloy wires inside the composite.

A third aspect of the present invention, in the first aspect of the present invention, specifies the degree of curvature at room temperature of a composite core material comprising a shape memory alloy wire and a resin. That is,
The degree of the curvature is equal to or greater than the degree of the radius of curvature of the site shape of the garment to which the composite core is attached. Here, the part of the clothing means that the pad puts on the clothing means its pad shape (radius of curvature), and the one that does not put the pad (the upper part of the shirt or the bra) has the shape of the pre-designed clothing part. means.

FIG. 3 shows an example of the pad 5 on which the core is mounted. Assuming that the radius of curvature of the shoulder opening 6 of the pad is R ₀ , the radius of curvature R ₁ of the composite core is equal to R ₀ . Or larger (R ₁ ≧ R ₀ ). When such a composite core material is inserted into a pad, the radius of curvature of the shoulder opening of the pad is substantially R ₀ . Also, when putting the pad with such a composite core material on the shoulder of the clothes,
Although it is slightly deformed by the weight restraining force, the elastic force for returning to the position of R ₀ works, and the function of shaping clothes is improved.

According to a fourth aspect of the present invention, the composite core material for clothing according to the first aspect is a composite core material for a pad. The composite core material for clothing of the present invention is particularly suitable as a core material for pats such as clothes and high-end women's blouses among clothing.

The invention of claim 5 relates to a method for producing such a composite core material, and since it is required to manufacture the composite core material at low cost, a continuous production method for a long core material is proposed. Things. That is, in the method for producing a composite core material for clothing of the present invention, first, a NiTi-based shape memory alloy wire is continuously and linearly stored. Next, a resin is extruded and coated around the alloy wire under heating to form a composite. Subsequently, the resin portion of the composite is thermoformed to form a coil having a predetermined curve. Next, the coil is cut into a predetermined length to form a composite core material having a shape curved in the longitudinal direction at room temperature, and these steps are continuously performed.

In the present invention, the alloy wire is extrusion-coated with a resin under heating to form a composite, and then the resin portion is thermoformed to form a coil having a predetermined curve. Thermoforming means molding the resin at a temperature above room temperature. Specifically, extrusion coating of the resin is performed under heating (for example, at 150 to 250 ° C.), and the resin-coated composite is wound on a drum or bobbin having a predetermined diameter while cooling to room temperature. Thus, a coil having a predetermined curvature at room temperature is obtained. When the production amount is small, as shown in FIG. 4, it is preferable to perform the resin coating step and the composite resin molding step continuously. When the production volume is large, after the resin is extruded and coated, it is once wound on a drum and cooled to room temperature. It is preferable to wind and shape it on a bobbin having a diameter.

After extruding the alloy wire with resin,
The resin can be processed flat by a roll. FIG.
Is an example of a method of performing a secondary processing by a roll when the composite once extruded and coated needs to be further flattened. The composite softened by heating is cooled while being crushed by the rolls 17 and 18, thereby increasing the width and giving a curvature at the same time. In this processing, the composite can be flattened by passing it through a roll as shown in FIG. 5 while the resin after extrusion coating is soft or after reheating and softening the resin. At this time, if the roll diameters d ₁ and d ₂ are changed, when the peripheral speed is the same, the work is flattened while being bent toward the larger roll diameter. Even with the same roll diameter, similar results can be obtained by changing the peripheral speed.

According to a sixth aspect of the present invention, the method for producing a composite core material for clothing according to the fifth aspect is a method for producing a composite core material for a pad. The method of the present invention is suitable for a method of manufacturing a core material of a pat, such as clothes, among clothing.

[0026]

Embodiments of the present invention will be described below in detail. [Example 1] A 0.35 mm diameter NiTi alloy wire (N
i50.85at% -residual Ti alloy wire) was heat-treated during running at a speed of 5m / min in a furnace at 530 ° C, and stored in a straight line. The Af point (transformation point) was about 20 ° C. The alloy wire was extrusion-coated with nylon at 180 ° C. to form a composite having an outer diameter of 1 mmφ. After extrusion, the composite was wound around a bobbin having a body diameter of 200 mm while cooling, and cooled to room temperature to form a coil. This coil is set to a predetermined length (about 150
mm), a composite core material having a radius of curvature of 120 mmR was obtained.

An epoxy ball is attached to the end of the composite core material to form a pad core material as shown in FIG. 6 (a), which is incorporated into a recess (a curvature radius of 60 mmR) of a foam resin pad. However, it fits well to the pad's radius of curvature of 60 mmR, and could be incorporated relatively easily. Further, when a force was applied to the pad incorporating the composite core material to reduce the radius of curvature and then the force was removed, the pad returned to the original pad shape (curvature radius 60 mmR), and the shape of the clothing was improved. It was confirmed that it was effective.

Example 2 The composite core material obtained in Example 1 was incorporated into a shirt collar (around the neck), a force was applied to reduce the radius of curvature around the neck, and then the force was removed.
The collar (around the neck) of the shirt returned to its original shape, confirming that it was effective in maintaining the shape of the garment.

Embodiment 3 NiTi having an outer diameter of 0.4 mmφ
Alloy wire (Ni 50.85 at% -remaining Ti alloy wire)
In a furnace at 30 ° C., heat treatment during running was performed at a speed of 5 m / min, and linear storage was performed. The Af point (transformation point) was about 20 ° C. Using two of these alloy wires, nylon 180
Extrusion coating at C.C. to give a composite (H = 0.7 mm, B = 3.5 mm, C = 2.8 m) having a cross section as shown in FIG.
m).

This is cooled while being wound several turns around a forming drum (body diameter 120 mmφ) 10 as shown in FIG.
After that, it is wound on a bobbin (body diameter 200 mmφ) 12,
It was cooled to room temperature to form a coil. When this coil was cut to a predetermined length (about 200 mm), the radius of curvature was 100
A composite core material for clothing of mmR was obtained. Example 1
In the same manner as described above, the dent of the pad made of foamed resin
mR), it was confirmed that there was no problem in use.

[0031]

As described in detail above, the composite core material for clothing according to the present invention is used as a core material for various types of clothing and is effective in improving the formability or shape retention of clothing. Can be used without inferior compared to those. In addition, the method for producing a composite core material for clothing according to the present invention can be mass-produced continuously. Therefore, it can be manufactured at a lower cost compared to the conventional one-by-one shape memory processing and its processing, and has an industrially remarkable effect.

[Brief description of the drawings]

FIG. 1 is an example of a composite core material for clothing according to the present invention, wherein (A) is a front view, and (B) is an enlarged AA of (A).
It is sectional drawing.

FIG. 2 is a representative example of a cross section of a composite core material for clothing according to the present invention, wherein (a) is a circular one, and (b) is a plurality of the composite core materials (a) arranged and bonded (or fused). Wear)
(C) (d) A plurality of shape memory alloy wires were simultaneously coated with resin and molded integrally, and (e) was a flat shape memory alloy wire coated with resin to finish the entire composite flat. Things.

FIG. 3 is an explanatory view showing an example of a method of using a composite core material for clothing according to the present invention for a pad.

FIG. 4 is an explanatory view showing one example of a method for producing a composite core material for clothing according to the present invention.

FIG. 5 is an explanatory view showing another example of the method for producing a composite core material for clothing according to the present invention.

FIG. 6 shows an example of treatment of both ends of the composite core material for clothing according to the present invention, wherein (a) shows a resin ball attached;
(B) is the one with the cap attached.

FIG. 7 is an explanatory view of a shoulder pad for shaping clothes.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Composite core material for clothing 2 NiTi shape memory alloy wire 3 Resin 4 Clothes 5 Shoulder pad 6 Shoulder pad H Shoulder pad H Height of composite core cross section B Width of composite core cross section C Interval of shape memory alloy wire R ₀ Radius of curvature of pad shoulder R ₁ Curvature radius of composite core material 7 NiTi shape memory alloy strand 8 Composite 9 Resin coating extruder 10 Drum 11 Holding roll 12 Bobbin 13, 14 Cooling device 15 Resin ball 16 Cap 17, 18 roll d _1, d ₂ roll diameter

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshiaki Kikuchi 5-1.8-8 Higashi-Hachiman, Hiratsuka-shi, Kanagawa F-term in Furukawa Techno Material Co., Ltd. 3B035 AA05 AA21 AA25 AB17 AD00

Claims (6)

[Claims] 1. A composite core material obtained by coating a resin with a NiTi-based shape memory alloy wire having a shape memory linearly and having superelastic properties at room temperature, wherein a resin portion of the composite core material is thermoformed. A composite core material for clothing characterized by having a shape curved in the longitudinal direction at room temperature. 2. The clothing according to claim 1, wherein the cross-sectional shape of the composite core material according to claim 1 is a circle, an oval, an ellipse, or a shape in which a plurality of them are joined. Composite core material. 3. The degree of curvature in the longitudinal direction of the composite core material according to claim 1 is equal to or greater than the degree of the radius of curvature of the part shape of the garment to which the composite core material is mounted. The composite core material for clothing according to claim 1 or 2. 4. The composite core material for clothing according to claim 1, wherein the clothing composite core material according to claim 1 is a pad composite core material. 5. The method for continuously producing a composite core material for clothing according to claim 1, wherein the step of linearly storing the NiTi-based shape memory alloy wire is performed, and the step of linearly storing the shape memory alloy. Extruding and coating the wire with a resin under heating to form a composite; thermoforming the resin portion of the composite into a coil having a predetermined curvature; cutting the coil into a predetermined length; Producing a composite core material having a shape curved in the longitudinal direction at room temperature. 6. The method for producing a composite core material for clothing according to claim 5, wherein the composite core material for clothing according to claim 5 is a composite core material for pad.