JPH04343702A - Wig hair - Google Patents

Abstract

PURPOSE:To obtain wig hair capable of readily setting without exposing end part of a wig hair base even when a hair material is turned up by wind by covering end part of the wig hair base with a hair-like wire rod made of a shape memory alloy and flocked in the vicinity of the wig hair base. CONSTITUTION:A hair material H is flocked on the irregular outer surface of a wig hair base 2 and simultaneously a number of wire rods F consisting of a shape memory alloy having a transformation temperature lower than the temperature used by wig hair user are flocked. Then these wire rods F are formed at a high temperature so as to bend it toward the direction departing from the end part 4 of wig hair base to the side and simultaneously bend it in a shape approaching human skin and have skin-approaching part 7. Thereby the wire rods F are immediately returned to the original shape and it is made possible to retain hair form in the vicinity of the borders of the hair.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a wig in which the ends of the wig base are inconspicuous, and the ends of the wig base are covered with a hair-like wire made of a shape memory alloy. This wig has the shape of the wire so that the ends of the wig base will not be exposed even if the hair material is turned up by wind or the like, and the wig can be easily set into a desired hairstyle.

0002

[Prior Art] For wigs in which hair material is implanted on the outer surface of the wig base, care must be taken to ensure that the ends of the wig base are not exposed, and the hairstyle should be such that the ends of the base are covered as much as possible. That is required. As a result, men are not only unable to choose the hairstyle of their choice, but are also constantly insecure because they are afraid of the hair being blown up by the wind. In addition, the result is that the user is forced to wear an unnatural hairstyle in which the hair falls deeply in the front.

0003

[Problem to be solved] The hair material is prevented from being flipped up by the wind and the base is exposed, and even if the hair material is flipped up, the end of the base is not exposed. To relieve anxiety, reduce restrictions on hairstyles so as not to be forced to wear unnatural hairstyles, and enable the formation of masculine hairstyles.

0004

[Means to solve the problem]

A. Invention 1 Invention 1 solves the above-mentioned problems, and provides a wig composed of a wig base and a hair material (H) implanted on the convex outer surface of the wig base. A large number of wire rods (F
), and the wire (F) is formed to have a skin-approaching part that is bent into a shape that approaches human skin, and the wire (F) is made of a shape memory alloy, and the wire (F) is made of a shape memory alloy. The transformation temperature of the alloy is configured to be lower than the operating temperature of the wig user. B. Invention 2 In the invention 2, in the above invention 1, the skin-approaching portion is formed by a bent portion of the wire (F). C. Invention 3 In the invention 3, in the above-described invention 1, the skin-approaching portion is formed by the tip of the wire (F).

[0005]

[Function] In general, shape memory alloys can change their shape arbitrarily below their transformation temperature, but at temperatures above their transformation temperature they tend to restore the memorized shape.
Therefore, even if it is deformed, it immediately returns to its original shape, and humans cannot freely change its shape. This property is called "superelasticity," and on the one hand it has the trouble of being "difficult to deform," but on the other hand, it has the favorable advantage of excellent restorability and the ability to return to its original shape even after being bent.

The present invention utilizes the shape restoring force of a shape memory alloy. For this reason, there is some resistance to the novelty of using metal wire as the hair material, but humans cannot tell from the appearance of the wig that the material is metal wire. Therefore, if the above-mentioned shape memory alloy wire is molded at high temperature into a shape such that the ends of the wig base are not exposed, at room temperature it always tries to restore the memorized shape and returns to the high temperature molded shape. The above-mentioned high temperature molding temperature is, for example, 350°C to 550°C, and the temperature used by the wig user (normal temperature) is -10° on a cold day and 4° on a hot day.
When considering that it is about 0°C, the transformation temperature of the shape memory alloy is, for example, −10° or lower. Therefore, at room temperature, it is always in a state of trying to restore its shape. The shape-recovery ability of shape-memory alloys is incomparably stronger than that of natural hair or artificial hair, and experiments have shown that the shape-retention ability of shape-memory alloys to resist wind and maintain their shape is so strong that humans find it strange. .

[0007]

Embodiment 1 In FIG. 1, a wig 1 is composed of a wig base 2 and a hair material H implanted on the convex outer surface of the wig base 2. Further, a wire rod F is planted in the proximal portion 3 of the wig base. Hair material H
A large number of wire rods F and F are planted on the base 2, but for ease of illustration, the number of wire rods is reduced and they are roughly drawn, the wire rod F is drawn as a solid line, and the hair material H is drawn as a two-dot chain line. Wire rod F
is bent laterally away from the end 4 of the wig base 2, and the wire F is further bent into a shape that approaches the human skin 6 to form a skin-approaching portion 7. Although this wire material F is a kind of wire, it has a color similar to that of the hair material H, a similar luster, and a similar appearance (thickness). If necessary, a material thinner than hair material H may be used. It may be advantageous if the wire is thin because it reduces the ability of the human eye to discern it.

The wire F is made of a shape memory alloy, and the transformation temperature of the shape memory alloy is lower than the operating temperature of the wig user, for example, -10°C. Therefore, at room temperature, the wire F always tends to return to its preset shape, and humans cannot bend it freely; even if it is bent by the wind, it immediately returns to its original shape.

In the case of FIG. 1, the state according to claim 2 (invention 2) is shown, and the skin proximal portion 7 is formed by a bent portion R of a wire F. Therefore, the end 4 of the wig base is covered with a large number of wires F, so that the end 4 is hidden and cannot be seen. Even if the wind blows, the wire F has a stronger restoring force than the ordinary hair material H, so it has a strong ability to resist the wind and quickly restores its shape.

Since human hair differs from person to person, it is difficult to show it with just one example, but FIG. 4 is a plan view of one example, showing the left half of the human forehead. In this example, it is the case of a person who has no hair on the top part 9, and the side part 8
has hair h. For this person, as shown in Fig. 5, the wig base 2 is placed over the top 9 where there is no hair, but the wig base is covered with hair material H (two-dot chain line) and wire material F (solid line) as shown in Fig. 6. are planted in large numbers. Fig. 6 is roughly drawn so that the base 2 can be seen through, but in reality, as shown in Fig. 7, the wire F and hair H are densely grown, and the end 4 of the wig base is not visible at all. It will look like the picture. In addition to the hairstyle shown in Figure 7, you can try various other hairstyles. For example, if the wires F are loosely planted on the base 2a as shown in FIG. 8, the result will be as shown in FIG. 9, and if they are densely planted, the result will be as shown in FIG. 10.

In the case of FIGS. 2 and 3, claim 3 (invention 3)
), the skin-approaching portion 7 is formed by the tip P of the wire F. If the tip P is formed so as to be in contact with the skin 6, the wire F will appear to be growing from the skin, giving the illusion that the tip P is on the hair root side. By applying this kind of illusion phenomenon, you can try out various hairstyles. For example, as shown in Figure 3, artificial "
"growth line" can be formed.In any case,
When the tip P approaches the skin as shown in Figures 2 and 3,
Even when the hair material H is turned up, the base end is hidden and not exposed.

0012

[Embodiment 2] An arbitrary number of wires F do not form a skin-proximity portion 7 that comes into contact with the skin, and wires F that do not come into contact with the skin at all are provided, for example, as shown by reference numeral 7b in FIGS. 1 and 2. Good too. Its effect is to indirectly cover and hide the base end 4 and to help maintain the hairstyle near the hairline.

[0013]

[Embodiment 3] The above description has been about the case in which the wire rods F are planted at the end of the wig base and its vicinity (referred to as the near edge part 3). In addition to this, the wire F may be implanted, or may be mixed with the hair material H on the top of the head. When expanding the area in this way, the wire F is planted or mixed with the end (or near edge) of the wig base. The effect is that hair material H
The overall shape retention function can be improved. By applying the hairstyle holding function of this embodiment, it can also be used for women's wigs. In this case, not only can the set hairstyle be maintained for a long time, saving time and money required for setting it, but also it is possible to create a new hairstyle that would not have been possible due to the wind.

[0014]

[Embodiment 4] If an increase in price is tolerable, the above-mentioned hair material H may be entirely replaced with wire material F, and the hair-like portion may be entirely constructed of wire material F. In this case, it can be used in the same way as in the previous item [0013], including the one for women, and the same effects as in the previous item can be obtained.

[0015]

[Embodiment 5] The above-mentioned wire rod F has the problem of difficulty in molding, so it is more difficult to manufacture a wig than the conventional wire rod. An example of a manufacturing method will be shown below, with consideration given to the difficulty of manufacturing. This is just an example and is not limited to this method.

[Manufacturing method A] (1) Molding the wire rod F while cooling it below the transformation temperature. (2) Next, high temperature treatment (setting) is performed at a high temperature (eg, 500°C). (3) Next, at room temperature, prepare a base, make it into a band-shaped base, for example, base B1 in FIGS. 11 and 12, and implant a large number of wire rods f1 in parallel thereto. Instead of planting, you can fill it with resin. It is preferable that the resin has elastomer-like elasticity. When viewed from above, the structure formed in this manner has a comb tooth shape as shown in FIG. (4) Prepare the second narrow band-shaped base B2 from the left end, and place a large number of wire rods f2 in parallel on it, or hold them with resin or elastomer. (5) Repeat the same for f3. Each band-shaped base B1, B2, B3 and each wire f1
, f2, and f3 are all shaped like the teeth of a comb as shown in FIG. (6) The above steps can also be completed at once. For example, a row of f1, a row of f2, and a row of f3 arranged in a row are held through appropriate spacers so that each row maintains an appropriate interval, and the hair roots of the group of wires are It is commonly filled with elastomer or the like to form artificial skin.

[Manufacturing method B] (a) As shown in FIG. 13(a), the wire holding plate 10 has a large number of holes 11, and the material thereof is made of a shape memory alloy,
The shape memory alloy is assumed to restore its memorized shape at a transformation temperature higher than room temperature. However, at room temperature, it is formed by plastic deformation so as to maintain the shape shown in FIG. 13(a). (b) When the wire holding plate 10 is heated above the transformation temperature, it returns to the memorized shape. In this example, the shape stored so as to be restored by heating is as shown in FIG. 13(b), and the cross section taken along the line X--X is as shown in FIG. 13(c). This shape is an example of a shape for setting the wire F into a desired three-dimensional shape. (c) Also, as shown in FIG. 13(d), the auxiliary plate 12 has many holes 13 like the wire holding plate 10, and its material is also a shape memory alloy like the wire holding plate 10. The shape memory alloy is also formed on the wire holding plate 1 at high temperature.
It is assumed that the shape is restored to the same shape as 0. This is also formed by plastic deformation so as to maintain the shape shown in FIG. 13(d) at room temperature. Note that the needle shown as 14 in FIG. 14 is not shown in FIG. 13(d). The needle 14 is an upright needle to prevent the wire F from slipping sideways, and will be explained in the next section (d). (d) As shown in an enlarged view in FIG. 14, first, the wire F is wound around the wire holding plate 10 at room temperature, and the auxiliary plates are pressed to sandwich the wire. In this embodiment, two auxiliary plates 12a and 12b were used. The above-mentioned needle 14 stands on one side 12a, and the needle passes through the hole 11 of the wire holding plate 10. (e) When the wire rod F is wound around the wire rod holding plate 10 in this way and heated as described above while being pressed by the auxiliary plate, both the wire rod holding plate and the auxiliary plate are deformed. For example, as shown in FIG.
As shown in b) and (c), the three-dimensional shape of the wire F is formed. When heated in this state at a temperature equal to or higher than the transformation temperature of the wire f, the wire f is set and its shape is memorized. (f) When the wire rod F is cooled and returns to room temperature, it is in a coiled shape, so the wire rod holding plate 10 or the auxiliary plate 1 is held while temporarily holding the end portion 15 of the coil with adhesive tape or a comb, for example.
Remove 2a and 12b. If only one end 15 is held with adhesive tape or the like in this manner, a coil temporarily held in a comb shape is obtained, and both ends including the other end (not shown) are held. In this case, a coil temporarily held in a ladder shape is obtained. If the wire holding plate 10 is not removed, a coil temporarily held with a core will be obtained. (g) Turn the wire F around the virtual perpendicular to the artificial skin surface, and rotate it diagonally to the artificial skin, for example, as shown in FIG.
Alternatively, the root portion of the hair may be buried in a loop shape, and the loop at the tip portion may be cut to freely release the tip portion.

[Manufacturing method C] The hair roots of the coiled wire F obtained by manufacturing method [B] as described above may be embedded in a film-like artificial skin. Breathable and stretchable materials can also be used. In this case, (I) Apply an adhesive to the hair root in advance, and bring it into contact with the net or knit to adhere. If the net or knit side is also thinly coated with adhesive in advance, adhesion to the wire F side will be made easier. Wire F is routed through the hair root.
It may be in any state, either as a loop or as a tip of the wire by cutting the loop. FIG. 16 shows an example in which a loop-shaped hair root portion 21 is adhered to a base 20 with an adhesive 27. (II) The material for forming the base may be woven or knitted from thin wires of shape memory alloy, or may be made into a non-woven fabric. (III) The hair root may stand upright with respect to the base, or the hair root may be bent into an L shape and brought into contact with the base surface in parallel. Such parallel contact facilitates adhesion. FIG. 17 shows an example in which a hair root portion 22 bent into an L-shape is adhered to a base 20 with an adhesive 27. Further, when the hair roots are brought into contact with the base in parallel, the hair roots can be joined to the base by suturing or other means without using an adhesive. (IV) Wire F utilizes the superelasticity of a shape memory alloy, but even so, it can be bent to an extremely sharp angle, for example, when it is pressed against a sharp 90 degree corner and bent into a sharp curve. , plastic deformation exceeds the superelastic limit. As a means to prevent the occurrence of such plastic deformation,
For example, it is preferable to use a flexible material as the artificial skin so that the hair roots do not come into contact with hard corners. Therefore, even if an adhesive is used as described in (I) above, it is best to use an adhesive with some flexibility to prevent plastic deformation of the wire F at sharp (for example, 90 degree) corners. This can be prevented from occurring. (V) Even shape memory alloys undergo plastic deformation when bent at a steep angle beyond their limits, as described above, but if this phenomenon is applied in reverse, it is possible to correct hairstyles at room temperature. FIG. 18 is an example of the tool, and the cross section of the clamping portion YY shows an end surface as shown in FIG. 19. Although it cannot be expressed in the diagram, the actual corner 25, 2
6 is sharply formed, and when the wire F is pinched, the wire is forcibly plastically deformed at the sharp corner, correcting the memorized shape.

In the above embodiments and drawings, most of the wires F and f have been drawn as straight lines for convenience of explanation, but in reality, as is widely practiced in the textile and beauty industries, they are slightly straight. It is better to give it crimpability (textile industry) or wave (beauty industry), which can make it look bulkier. As a method for forming the wire F in such a wavy shape, for example, the above-mentioned wire holding plate 10 and auxiliary plate 12 may be memorized into a wavy shape.

The following reference examples deviate from the [claims] and should originally be filed as separate applications. [Reference example] When it is not embarrassing even if the "growth line" is exposed, such as when used as a women's wig, the part bent in the direction away from the end of the base or close to the skin as defined in the claim. There is no need to provide a section.

[0021]

[Effects] (1) The shape restoring power of the shape memory alloy, called superelasticity, has a strong ability to resist wind and maintain and restore the hairstyle, and even if it is torn by the wind, it restores itself immediately. (2) Eliminating men's concerns that the ends of the wig may be exposed, it is possible to break away from the traditional floppy hairstyle unique to wigs and create a wig with a manly "growth". . (3) When used for women, it maintains and restores the set hairstyle for a long time. In addition, it becomes possible to create unknown hairstyles that could not be realized due to wind disturbances.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the invention.

FIG. 2 is a cross-sectional view of an embodiment of the invention.

FIG. 3 is a cross-sectional view of an embodiment of the invention.

FIG. 4 is an explanatory diagram showing the effect of the present invention.

FIG. 5 is an explanatory diagram showing the effect of the present invention.

FIG. 6 is an explanatory diagram showing the effect of the present invention.

FIG. 7 is an explanatory diagram showing the effect of the present invention.

FIG. 8 is an explanatory diagram showing the effect of the present invention.

FIG. 9 is an explanatory diagram showing the effect of the present invention.

FIG. 10 is an explanatory diagram showing the effect of the present invention.

FIG. 11 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 12 is a schematic explanatory diagram of the base and wire rod manufactured as shown in FIG. 11, viewed from above.

FIG. 13 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 14 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 15 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 16 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 17 is a schematic explanatory diagram showing an example of the manufacturing process of the present invention.

FIG. 18 is a schematic explanatory diagram showing an example of the wig hairstyle modification method of the present invention.

FIG. 19 is a schematic explanatory diagram showing an example of the wig hairstyle modification method of the present invention.

[Explanation of symbols]

H...Hair material F...Wire rod R...Bending part P...Tip 2...Wig base 4... End of the wig base 7...Skin access area

Claims (3)

[Claims] Claim 1: A wig comprising a wig base and a hair material (H) implanted on a convex outer surface of the wig base, wherein the hair material (H) is implanted in a proximal portion of the wig base, and A large number of wire rods (F) are arranged to be bent in a direction laterally away from the end of the wire, and the wire rods (F) are formed to have a skin-approaching part bent in a shape that approaches the human skin, Furthermore, the wire (F) is made of a shape memory alloy, and the transformation temperature of the shape memory alloy is lower than the operating temperature of the wig user. 2. The wig according to claim 1, wherein the skin-approaching part is formed by a bent part of the wire (F). 3. The wig according to claim 1, wherein the skin-approaching part is formed by the tip of the wire (F).