Perming clip board

Abstract

The present application aims to provide a perm board capable of reducing damage to hair. The perm board of the present application has a first clamp arm and a second clamp arm connected to be openable and closable, a first clamping surface provided on the inner side of the first clamp arm, a second clamping surface provided on the inner side of the second clamp arm, and a heating portion for heating hair provided on the first clamping surface and the second clamping surface, characterized in that the heating portion has a layer composed of at least platinum.

Description

Technical Field

[0001] This invention relates to hair straighteners, and more particularly to hair straighteners that can reduce hair damage. Background Technology

[0002] Hair straighteners are typically used in hair styling processes such as straightening, blow-drying, and hair care. Such hair straighteners have a pair of clamping arms connected at one end, allowing them to rotate, and facing hair heating elements at the other end of the clamping arms. With the hair held in place by the heated dual heating elements, the hair can be heated and styled by sliding the hair straightener towards the ends.

[0003] For example, as a hair straightener, a hair styling device (1) is known to include a handheld hair care unit (2), the handheld hair care unit (2) having two clamping arms (3, 4), the two clamping arms (3, 4) forming clamps having two mutually facing surfaces (5, 6) and being able to clamp a strand of hair, the handheld hair care unit including a steam diffusion mechanism (7), the steam diffusion mechanism (7) being configured to diffuse steam from a first surface (5) of the two surfaces to a second surface (6) of the two surfaces, the hair styling device (1) being characterized in that one of the clamping arms (3, 4) has a comb (19), the comb (19) being positioned upstream or downstream of one of the surfaces (5, 6) of the clamping arm (3, 4) (Patent Document 1).

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Publication No. 2017-515590 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] However, in the prior art including the aforementioned Patent Document 1, the wall thickness of the clamping arm is set to be thick in order to increase the heat capacity. In such cases, there is a problem of overall large size and increased weight.

[0009] In addition, before using a hair straightener, various chemicals such as oxidants and reducing agents are sometimes used in hair dyeing, hair care, and bleaching processes.

[0010] In such cases, after achieving their intended purpose as oxidants and reducing agents, they may actually damage the hair. Although attempts are made to reduce hair damage by using medications that are designed to minimize hair damage and avoiding prolonged use, these methods are not always effective.

[0011] For example, hydrogen peroxide used in hair bleaching products has the following problems: although it can provide good coloring, it also acts on keratin, the main component of hair, and breaks it down, resulting in damage to the hair.

[0012] Furthermore, current technologies primarily focus on straightening curls, without considering perming or other curl-based styling techniques. Additionally, when performing such curling techniques, better fit between the clips allows for more appropriate handling.

[0013] Therefore, the object of the present invention is to provide a hair straightener that can improve the fit between the clamp arms.

[0014] Solution for solving the problem

[0015] To achieve the above objectives, the inventors of this application conducted in-depth research on hair straighteners and ultimately obtained this invention.

[0016] That is, the hair straightening iron of the present invention has:

[0017] A first clamping arm and a second clamping arm are connected to form an opening and closing mechanism;

[0018] A first clamping surface is disposed on the inner side of the first clamping arm;

[0019] The second clamping surface is disposed on the inner side of the second clamping arm; and

[0020] A heating element is disposed on the first clamping surface and the second clamping surface and is used to heat the hair.

[0021] The hair straightener is characterized in that...

[0022] The heating element has a layer made of at least platinum.

[0023] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the heating part is characterized in that it further comprises a layer composed of at least one of nickel, copper, electroless nickel, or aluminum.

[0024] In addition, in a preferred embodiment of the hair straightener of the present invention, the thickness of the platinum layer is 0.05~1.0μm.

[0025] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the surface of the heating part is polished and ground.

[0026] Furthermore, in a preferred embodiment of the hair straightener of the present invention, it is characterized in that the first clamp arm and / or the second clamp arm are provided with a hydrogen peroxide reduction device.

[0027] In addition, in a preferred embodiment of the hair straightener of the present invention, the first clamp arm and / or the second clamp arm are further characterized by having a temperature control device.

[0028] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the hydrogen peroxide reduction device reduces hydrogen peroxide by setting a temperature.

[0029] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the temperature is characterized as being 80°C or higher.

[0030] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the temperature is characterized as 140°C to 180°C.

[0031] In addition, in a preferred embodiment of the hair straightener of the present invention, the hair straightener is characterized in that it further has a connecting member for connecting the first clamp arm and the second clamp arm.

[0032] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the hydrogen peroxide reduction device and the temperature control device are integrated into one unit.

[0033] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the first clamping arm and / or the second clamping arm are characterized by having switches for the hydrogen peroxide reduction device and the temperature control device.

[0034] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the connecting member is one or more.

[0035] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the first clamping arm and / or the second clamping arm are characterized in that the first clamping arm and / or the second clamping arm have a force-applying portion that applies force to the clamping surface to elastically adjust the clamping state between the clamping surfaces.

[0036] In addition, in a preferred embodiment of the hair straightener of the present invention, the first clamp arm and / or the second clamp arm are characterized in that the core material is internally installed along the length direction.

[0037] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the core material is characterized in that the limiting portion engages the clamping surface to restrict the movement of the clamping surface relative to the first clamping arm and / or the second clamping arm in the protruding direction.

[0038] Furthermore, in a preferred embodiment of the hair straightener of the present invention, it is characterized in that at least one of the hair passing direction edge of the heating section has a curling surface that bends along the thickness direction of the heating section.

[0039] In addition, in a preferred embodiment of the hair straightener of the present invention, the hair-passing edge on the front end side of the first clamp arm and / or the second clamp arm has a curved surface.

[0040] In addition, in a preferred embodiment of the hair curling iron of the present invention, the hair curling iron is characterized in that it also has the hair curling surface and / or a plane continuous with the surface.

[0041] Invention Effects

[0042] The hair straightener according to the present invention provides the advantage of improving the fit between the clamp arms. Furthermore, the hair straightener according to another aspect of the present invention provides the advantage of reducing hair damage.

[0043] Furthermore, according to the hair straightener of the present invention, when the holding part of the middle part of the clamping arm is operated, the base side rotates relative to each other, and the front side can perform a clamping action, thereby achieving the advantageous effect of clamping and correcting the hair by means of the clamping surfaces (also called correcting bodies) arranged facing each other on the front side of the clamping arm.

[0044] Furthermore, according to the hair straightener of the present invention, when styling curls, the hair and the curved surface of the curls come into full contact, thereby achieving the advantageous effect of being able to perform a full curling style. Attached Figure Description

[0045] Figure 1 This diagram illustrates the effect of a hair straightener according to one embodiment of the present invention. Although the diagram may be difficult to understand, the bar graphs are displayed from left to right in the order of hair ends, center, and roots.

[0046] Figure 2 This is a diagram illustrating a hair straightener according to one embodiment of the present invention.

[0047] Figure 3 This is a top view of a hair straightener according to an embodiment of the present invention.

[0048] Figure 4 This refers to the use of a hair straightener according to one embodiment of the present invention. Figure 5 A diagram showing the flipped-over state (the back side before assembly).

[0049] Figure 5 This is a bottom view of a hair straightener according to an embodiment of the present invention.

[0050] Figure 6 This refers to the use of a hair straightener according to one embodiment of the present invention. Figure 3 A diagram showing the flipped-over state (the back side before assembly).

[0051] Figure 7 A hair straightener according to one embodiment of the present invention is shown.

[0052] Figure 8 This is a perspective view of the upper housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The schematic diagram shows the plates and core materials constituting the heating element, etc.

[0053] Figure 9 This is a side view of the upper housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. A schematic diagram shows the plates and core materials constituting the heating element, etc.

[0054] Figure 10 This is a perspective view of the lower housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The schematic diagram shows the plates and core materials constituting the heating element, etc.

[0055] Figure 11 This is a side view of the lower housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. A schematic diagram shows the plates and core materials constituting the heating element, etc.

[0056] Figure 12 The structure of a hair straightener according to one embodiment of the present invention, from the heating section to the force application section, is shown in a schematic diagram. Figure 12 (a) shows a three-dimensional view of the plate. Figure 12 (b) Shows the plate and the components within the plate. Figure 12 (c) A sectional view showing the plate and the components within the plate, Figure 12 (d) shows an example of the structure of a component within a plate. Detailed Implementation

[0057] The hair straightener of the present invention has the following features:

[0058] A first clamping arm and a second clamping arm are connected to form an opening and closing mechanism;

[0059] A first clamping surface is disposed on the inner side of the first clamping arm;

[0060] The second clamping surface is disposed on the inner side of the second clamping arm; and

[0061] A heating element is disposed on the first clamping surface and the second clamping surface and is used to heat the hair.

[0062] The hair straightener is characterized in that the heating element has a layer made of at least platinum. In this invention, the first and second clamping arms are only required to be connected in a way that allows them to open and close; there are no particular limitations. In this invention, hair can be clamped using a first clamping surface located on the inner side of the first clamping arm and a second clamping surface located on the inner side of the second clamping arm. By using the heating elements provided on the first and second clamping surfaces for heating the hair, styling of the hair can be achieved via the two clamping surfaces.

[0063] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint of improving adhesion to platinum, the heating section is characterized by having a layer composed of at least one of nickel, copper, electroless nickel, or aluminum. At the heating section, the outermost platinum layer can directly contact the hair. Regarding the order of the layers, aluminum and platinum may not provide sufficient adhesion; by sandwiching nickel / copper / nickel between them, adhesion can be improved. Additionally, combinations of aluminum and copper, or platinum and copper, may also result in insufficient adhesion; when using all materials, the preferred order is platinum, nickel, copper, electroless nickel, and aluminum.

[0064] It should be noted that, as will be discussed later... Figure 12 As shown, strictly speaking, the heating element can be configured as a plate, with a heating source such as a ceramic heater in the layer below the plate. These heating elements (plates), as described below, can be configured as follows: Figure 12 The shape shown.

[0065] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint of cost reduction and improved fit, the thickness of the platinum layer is characterized by being 0.05 to 1.0 μm. This is because, outside this range, the corners may protrude, and the plates may lack proper fit.

[0066] Furthermore, in a preferred embodiment, the thickness of the nickel layer is preferably 1 to 20 μm, more preferably 5 to 10 μm. Also in a preferred embodiment, the thickness of the copper layer is preferably 1 to 10 μm, more preferably 2 to 5 μm. Furthermore, in a preferred embodiment, the thickness of the electroless nickel layer is preferably 1 to 10 μm, more preferably 3 to 5 μm. Furthermore, in a preferred embodiment, the thickness of the aluminum layer is preferably 0.1 to 10 μm, more preferably 1 to 3 μm.

[0067] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the surface of the heating portion is polished and ground. For example, by polishing and grinding the surface of the aluminum plate constituting the heating portion, it is made smoother, thereby eliminating unevenness of the layers, such as the platinum layer, placed on it. Moreover, by performing polishing and grinding in this way, the adhesion between the plates electroplated with the platinum layer is improved when they are placed together. It should be noted that burrs can be removed from the four corners of the plate.

[0068] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the first clamp arm and / or the second clamp arm are characterized by having a hydrogen peroxide reduction device. Therefore, in the present invention, for example, excess hydrogen peroxide used in bleaching agents can be effectively removed, thereby significantly reducing hair damage. The hydrogen peroxide reduction device only needs to be provided on the clamp arm, and its location is not particularly limited. In a preferred embodiment, from the viewpoint of avoiding the clamping surface that is expected to become hot due to the heating element, it can be provided at any location from the center of the clamp arm to the handle side of the clamp arm.

[0069] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the hydrogen peroxide reduction device reduces hydrogen peroxide by setting a temperature. In a preferred embodiment of the hair straightener of the present invention, from the viewpoint of starting to reduce hydrogen peroxide, the temperature is characterized by being 80°C or higher. Moreover, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint of more effectively reducing hydrogen peroxide, the temperature is characterized by being 140°C to 180°C.

[0070] Furthermore, in a preferred embodiment of the hair straightener of the present invention, a temperature control device is provided in the first clamping arm and / or the second clamping arm. The temperature setting device can be provided simply in the clamping arm, and its location is not particularly limited. In a preferred embodiment, from the viewpoint of avoiding the clamping surface that is expected to become overheated due to the heating element, it can be provided at any location from the center of the clamping arm to the handle side of the clamping arm.

[0071] There are also cases where a temperature control device is installed in the middle of the power cord leading from the main body of the hair straightener. However, in this case, the cord needs to be pulled manually to operate the power switch. On the other hand, in this invention, a hydrogen peroxide reduction device and a temperature control device are installed inside the clamp arm. As will be described later, if the switch function is located inside the clamp arm, the power can be turned on / off while the hair straightener is held in the right hand. Furthermore, if a knob-type adjustment mechanism is used, the hydrogen peroxide and temperature can be adjusted by simply turning the dial with the thumb, thus improving operability.

[0072] Furthermore, in a preferred embodiment of the hair straightener of the present invention, it is characterized by having a connecting member that connects the first clamping arm and the second clamping arm. By using the connecting member to connect the two clamping arms, it is possible to suppress the wobbling of the front end portion of the hair straightener (i.e., lateral wobbling when viewed from the front end side of the hair straightener). Specifically, when the hair straightener is pressed, the plates can be aligned without misalignment. Moreover, in a preferred embodiment of the hair straightener of the present invention, from an operability point of view, it is characterized by having one or more connecting members.

[0073] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from an operability point of view, the hydrogen peroxide reduction device and the temperature control device are integrated. Moreover, in a preferred embodiment of the hair straightener of the present invention, the first clamping arm and / or the second clamping arm are characterized by having a switch for the hydrogen peroxide reduction device and the temperature control device. As mentioned above, there are also cases where the temperature control device is provided in the middle of the power cord leading from the hair straightener body; however, in this case, the cord needs to be pulled manually to turn the power on / off. On the other hand, in the present invention, the hydrogen peroxide reduction device and the temperature control device are provided inside the clamping arm, and a switch can also be provided, thus improving operability.

[0074] It should be noted that bleaching can be performed before using a hair straightener. Bleaching uses alkaline agents to soften the hair. The main components of bleach are hydrogen peroxide and ammonia (alkaline substances). Ammonia acts on the cuticle layer of the hair, causing it to swell and soften. Hydrogen peroxide then permeates the interior of this swollen and softened hair, reacting chemically with melanin. When bleaching black hair, the color changes depending on the application time: reddish-brown → a strong orange → a strong orange → yellow. This is mainly because the dark brown "eumelanin" is broken down, while the orange-red "pheomelanin" is difficult to break down.

[0075] However, it's not just melanin that's oxidized by hydrogen peroxide. It can also break down keratin, a major component of hair, causing damage.

[0076] In this invention, hair damage can be significantly reduced by removing the hydrogen peroxide in advance.

[0077] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the first clamping arm and / or the second clamping arm are characterized by having a force-applying portion that applies force to the clamping surfaces to elastically adjust the clamping state between the clamping surfaces. When the gripping portion of the middle part of the first clamping arm and / or the second clamping arm is operated, the base ends of the first clamping arm and / or the second clamping arm rotate relative to each other, and the front ends of the first clamping arm and / or the second clamping arm (also referred to as the first and / or the second clamping arms) can perform a clamping action. Through this clamping action, the hair can be clamped and corrected using the clamping surfaces (clamping surfaces) arranged facing each other on the front ends of the clamping arms.

[0078] Furthermore, at least one of the clamping surfaces can be movably supported by the clamping arm, allowing it to move freely relative to the other side. A force-applying part is provided on the clamping arm to elastically adjust the clamping state between the clamping surfaces by applying force to them. This allows for reliable clamping of hair by the clamping surfaces. It should be noted that the force-applying part is not particularly limited and can be, for example, a coil spring, leaf spring, spring, rubber, etc. It should be noted that the force-applying part (e.g., a spring) can separate the spring pressing the bimetallic thermal fuse from the magnetically pressed leaf spring to enhance the holding force. This allows for more precise sensing of temperature transmission.

[0079] In addition, in a preferred embodiment of the hair straightener of the present invention, the first clamp arm and / or the second clamp arm are characterized in that the core material is internally installed along the length direction.

[0080] Furthermore, a core material is embedded along the length of the clamping arm, extending at least from the front end to the gripping portion. This core material maintains a hardness higher than the temperature of the clamping arm, thus limiting heat-induced deformation of the front end of the clamping arm when heated by the heating portion of the clamping surface. Therefore, the gripping portion of the clamping arm can be held, and force can be smoothly transmitted from the front end of the clamping arm to the clamping surface, enabling reliable clamping and correction of hair.

[0081] Therefore, even though the clamping arms are thin-walled to reduce heat capacity, hair clamping and straightening can be reliably performed. By achieving overall lightweight design, it becomes easy to hold the clamping arms and perform fine straightening of curls for a certain period of time with ease.

[0082] Furthermore, a bearing portion can be locally provided in the core material, facing the back of the force-applying portion, to support the force-applying portion. This allows the force-applying portion to bear the clamping reaction force generated by the clamping surface via the bearing portion, enabling more reliable clamping and correction of the hair through the interaction of the clamping surfaces.

[0083] It should be noted that the bearing portion can be partially provided, so its shape is less affected by the bending shape of the clamping arm side, etc., and the bearing portion can be easily positioned on the back of the force-applying portion.

[0084] Furthermore, in a preferred embodiment of the hair straightener of the present invention, the core material is characterized by having a limiting portion that engages the clamping surface to restrict its movement in the protruding direction relative to the first clamping arm and / or the second clamping arm. That is, engagement with the limiting portion restricts the movement of the clamping surface in the protruding direction relative to the clamping arm. Therefore, the wobbling of the clamping surface relative to the clamping arm can be limited, allowing for more reliable clamping and correction of the hair based on the interaction of the clamping surfaces.

[0085] Furthermore, in a preferred embodiment, the clamping arm is divisible. That is, the clamping arm can be configured as an interlocking structure in which the divisible portions are joined together by a fastening connection device, allowing the core material to be pre-joined to one of the divisible portions via a pre-limiting movement provided at one end in the longitudinal direction. Therefore, when the divisible portions are joined together by the fastening connection device, the core material does not need to be separately processed. Together with the fastening connection of the divisible portions, a predetermined portion of the core material can be joined to the clamping arm by a single fastening device. Therefore, when the divisible portions are joined together, the core material does not need to be separately processed, and the clamping arm can be easily assembled.

[0086] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint of curling hair, it is characterized in that at least one of the hair-passing direction edge of the heating section has a curling surface that bends along the thickness direction of the heating section. The clamping surface has heating sections facing each other, and at least one of the hair-passing direction edge of the heating section may be provided with a curling surface that bends along the thickness direction of the heating section. At least one of the hair-passing direction edge at the front end side of the clamping arm may also be provided with a curved surface and / or a flat winding surface for winding the hair.

[0087] The hair wrapped around the curved surface of the curl can also extend linearly from the curved surface and come into contact with the curved or flat surface of the curl. Therefore, when styling curls, the hair makes full contact with the curved surface of the curl, allowing for a more complete curl.

[0088] Furthermore, by applying tension to the hair through the curling arms, the hair can easily slide on the curved or flat surface of the curling arms when pressed against the curly surface to form a curl. Therefore, the tension applied to the hair through curling can be effectively utilized for pressing against the curly surface, allowing for more complete curl styling.

[0089] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint of creating different curling styles, it is characterized in that the hair-passing edge on the front end side of the first clamp arm and / or the second clamp arm has a curved surface.

[0090] In this invention, the clamping surface has a heating portion, the heating portion has a straightening surface facing each other, and the hair passing through the hair end edge of the heating portion can be provided with a curling surface that bends along the thickness direction of the heating portion. Moreover, the hair passing through the hair end edge at the front end of the clamping arm can be provided with a curved surface or a flat winding surface that winds the hair.

[0091] Therefore, by changing the degree of curl of the hair relative to the curved surface formed by the two curls, it is possible to easily create different curl styles.

[0092] Furthermore, in a preferred embodiment of the hair straightener of the present invention, from the viewpoint that the hair can be reliably clamped and corrected and the curling style can also be reliably performed, it is characterized by having the curling surface and / or a plane continuous with the surface.

[0093] In this invention, at least one of the clamping surfaces is supported on the clamping arm in a way that allows it to move forward and backward relative to the other side. The clamping arm may be provided with a force-applying part that elastically adjusts the clamping state between the clamping surfaces by applying forward force to the clamping surfaces. Furthermore, based on this, when the clamping surfaces retract, the hair wrapped around the curly forming surface comes into contact with the curved surface or plane of the wrapping surface due to the presence of the curly forming surface and / or the plane continuous with the surface, that is, extending linearly from the curly forming surface. Therefore, the hair can be reliably clamped and corrected by the opposing and retractable clamping surfaces, and curly styling can also be reliably achieved.

[0094] It should be noted that in this invention, the winding surface has a plane orthogonal to the clamping surface (correction surface). The plane of the winding surface is close to the protruding position of the hair forming surface in the direction of hair passage. Therefore, by sliding along the plane of the winding surface, the tension imposed on the hair by the winding can be directly used as a pressing force on the hair forming surface, which can make hair styling more reliable and easier.

[0095] Furthermore, in this invention, the plate, clamping arms, flexible wire, temperature control, magnets, etc., can be improved and modified. For example, to improve responsiveness during hair styling, the gold plating thickness of the plate can be modified. Moreover, from the viewpoint of preventing lateral misalignment, a limiting member for preventing lateral misalignment of the clamping arms can be provided. Furthermore, from the viewpoint of preventing wire breakage, an AC flexible wire can be provided. In addition, from the viewpoints of preventing peeling, addressing chemical resistance, and addressing color matching, a three-layer coating can be applied. Furthermore, from the viewpoints of addressing heat resistance and magnetic force, magnets can be used in the structure from the force application part to the plate.

[0096] Alternatively, temperature control can be implemented from the perspective of shortening the arrival time to the set temperature. From the perspective of strength, a reinforcing plate shape can be adopted.

[0097] Furthermore, in terms of structure, the upper and lower shells of the hair straightener body contain a platinum plate, heat-dissipating silicone, a ceramic heater, a mica plate, a heat-resistant magnet, magnetic pressing accessories, and plate pressing accessories. For control, it may include a thermistor, a bimetallic temperature fuse, and a PCB unit. Moreover, due to the interaction of magnetism, temperature, platinum composition, and other factors with various molecules such as water molecules, the complex differential effects may create a better result.

[0098] Example

[0099] The following describes an embodiment using the hair straightener of the present invention, but the present invention is not limited to the following embodiments.

[0100] Example 1

[0101] Figure 2A hair straightener according to an embodiment of the present invention is shown. In the figure, 1 represents a first clamping arm, 2 represents a second clamping arm, 3 represents a first clamping surface, 4 represents a second clamping surface, 5 represents a hydrogen peroxide reduction device, 6 represents a temperature control device, 7 represents a connecting member, 8 represents a connecting member, and 9 represents a switch. The following describes the process of straightening hair using this hair straightener. The power plug is inserted into the socket, and the clamping surfaces (3, 4) are heated by the heater (heat source). Hair is clamped onto the clamping surfaces (3, 4) by the clamping action based on the first and second clamping arms, and the hair can be styled along the processing surface of the clamping surfaces (3, 4) by the heating of the heating element. In this example, the hydrogen peroxide reduction device 5 is provided inside the clamping arm, and the switch 9 is also provided inside the clamping arm. Therefore, the power can be turned on / off while holding the hair straightener with the right hand. Furthermore, in this example, the hydrogen peroxide reduction device 5 and the temperature control device 6 are integrated into a single unit, with a knob-type adjustment function. Therefore, the adjustment of hydrogen peroxide and temperature can be easily achieved by simply turning the dial with the thumb, thus improving operability. It should be noted that the temperature adjustment of the hydrogen peroxide reducing device 5 and the temperature control device 6 is not limited to a knob; it can be done via buttons, levers, etc., without any particular limitation.

[0102] It should be noted that, as a "hydrogen peroxide removal" mode, the hair straightener can also be set to a "hydrogen peroxide removal" mode on the dial of the straightener to reach 150°C.

[0103] Figure 3 This is a top view of a hair straightener according to an embodiment of the present invention. In the figure, 33 represents one side of the front end 29, 31, 35 represents one side of the holding parts 21, 23, 37 represents the inclined surfaces of both sides 33, 35, and 39 represents the other side of the front end 29, 31.

[0104] Figure 4 This refers to the use of a hair straightener according to one embodiment of the present invention. Figure 5 A diagram showing the flipped-over state (the back side before assembly).

[0105] Figure 5 This is a bottom view of a hair straightener according to an embodiment of the present invention. In the figure, 33 represents one side of the front end 29, 31, 35 represents one side of the holding parts 21, 23, 37 represents the inclined surfaces of both sides 33, 35, and 39 represents the other side of the front end 29, 31.

[0106] Figure 6 This refers to the use of a hair straightener according to one embodiment of the present invention. Figure 3 A diagram showing the flipped-over state (the back side before assembly).

[0107] in addition, Figure 7 A hair straightener plate according to an embodiment of the present invention is shown. In the figure, 3 represents the first clamping surface, 4 represents the second clamping surface, 15 and 17 represent the base end side, 19 represents the rotation axis, 21 and 23 represent the holding part, 25 and 27 represent the force point part, and 29 and 31 represent the front end side.

[0108] Figure 8 This diagram shows a perspective view of the upper housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The diagram schematically shows the plates and core materials constituting the heating element, etc. In the diagram, 50 represents the core material, and 51 represents the plates and others.

[0109] Figure 9 This is a side view of the upper housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The schematic diagram shows the plates and core materials constituting the heating element, etc. In the figure, 50 represents the core material, and 51 represents the plates and others.

[0110] Figure 10 This is a perspective view of the lower housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The diagram schematically shows the plates and core materials constituting the heating element, etc. In the figure, 50 represents the core material, and 51 represents the plates and others.

[0111] Figure 11 This is a side view of the lower housing portion of the main body for assembling the upper and lower parts of a hair straightener according to an embodiment of the present invention. The schematic diagram shows the plates and core materials constituting the heating element, etc. In the figure, 50 represents the core material, and 51 represents the plates and others.

[0112] Figure 12 The structure of a hair straightener plate according to one embodiment of the present invention, from the heating section to the force-applying section, is shown schematically. In the figure, 60 represents a plate, 61 represents a ceramic heater (heat source), 62 represents a mica plate, 63 represents a bimetallic material, 64 represents a bimetallic pressing member, 65 represents a magnetic pressing leaf spring, 66 represents a plate leaf spring (force-applying section), and 67 represents a magnet. Figure 12 (a) shows a three-dimensional view of the plate. Figure 12 (b) Shows the plate and the components within the plate. Figure 12 (c) A sectional view showing the plate and the components within the plate, Figure 12 (d) shows an example of the structure of the components within the plate. The plate uses an aluminum substrate, such as... Figure 12 (a) Shaped in that way, it can be electroplated, for example, in the order of electroless nickel, copper, nickel, platinum. Figure 12 As shown in (b), components such as the ceramic heater (heating source) 61, mica plate 62, bimetallic strip 63, bimetallic pressing element 64, magnetic pressing leaf spring 65, leaf spring (force application part) 66, and magnet 67 can be used, for example... Figure 12(d) It is configured within the plate as shown in the figure. By modifying the spring, the spring that presses the bimetallic temperature fuse is separated from the magnetic pressing leaf spring, thus further improving the holding force. Moreover, with the above structure, the transmission of temperature can be sensed with higher precision.

[0113] As shown in the figure above, the hair straightener has a main body with a power cord connected to it. It should be noted that the power cord may include a temperature control device, a power plug, etc.

[0114] Next, an embodiment of a hair straightener having a force-applying part, a core material, a movement-limiting part, etc., will be described.

[0115] The hair straightener body has a pair of clamping arms and a pair of clamping surfaces 3 and 4. The clamping arms, for example, have a linear expansion coefficient of 8.8 × 10⁻⁶. -5 Made of resin such as polyester engineering plastic with a thickness of cm / cm / ℃, the base ends 15 and 17 can be freely rotated together via a rotating shaft 19. Holding parts 21 and 23 are provided in the middle of each clamping arm. These holding parts 21 and 23 are designed for easy gripping. Figure 7 That would result in a coarser texture, which could be set to be approximately the same thickness as the base side 15 and 17.

[0116] The front ends of the gripping parts 21 and 23 are provided with force points 25 and 27 formed by inclined surfaces. These force points 25 and 27 are the points where the thumb and forefinger apply force when gripping the gripping parts 21 and 23. Figure 7 When viewed from the side, the force points 25 and 27 are formed to be slightly larger than the gripping parts 21 and 23 as a whole, making it easier for the thumb and index finger to apply force.

[0117] The front ends 29 and 31 of the clamping arms are as follows Figure 7 That is thinner than the gripping parts 21 and 23 which are formed in the mutual engaging direction. Furthermore, the front end sides 29 and 31, as... Figure 3 That is thinner than the gripping parts 21 and 23, and is positioned off to one side relative to the gripping parts 21 and 23. Therefore, one side 33 of the front end side 29 and 31 protrudes to one side more than one side 35 of the gripping parts 21 and 23, and the two sides 33 and 35 are set continuously in a stepped manner by the inclined surface 37. The other side 39 of the front end side 29 and 31 is formed off to one side according to the one side 33, and extends towards the central side of the gripping parts 21 and 23.

[0118] The aforementioned clamping arm is hollow and can be divided into segments starting from the center, forming an interlocking structure. These segments can be fastened together at the front end sides 29 and 31, the gripping parts 21 and 23, and the base end sides 15 and 17 using screws as fastening devices. Although not shown, the segmented parts may have through holes for fastening at the front end sides 29 and 31.

[0119] Although not shown in the figure, multiple reinforcing ribs can be provided within the hollow gripping portions 21 and 23. A protrusion can be provided on the opposing sides of one of the gripping arms, and a recess for the protrusion to engage with the other gripping arm. The protrusion can abut against the bottom surface of the recess to function as a limiting member.

[0120] Thus, the clamping arms are configured such that the base ends 15 and 17 can rotate freely together, and the front ends 29 and 31 perform clamping actions through the operation of the gripping parts 21 and 23 in the middle.

[0121] It should be noted that in the following description, the front end 29 is described in terms of its symmetrical shape, while the other front end 31 is described in the same way as the front end 29.

[0122] The front end side 29 may have a flat longitudinal wall and a flat bottom wall for internally accommodating the core material. Furthermore, the front end side 29 may be provided with a clamping surface support hole that allows the clamping surface 3 to be movably supported relative to the other side. The clamping surface 3 can be movably supported in the clamping surface support hole.

[0123] Therefore, the clamping surfaces 3 and 4 are arranged facing each other on the front end sides 29 and 31 of the clamping arms, and the clamping action of the clamping arms heats up the hair and simultaneously clamps and corrects it.

[0124] Viewed from the clamping surface side, the clamping surface 3 is composed of a heating element, a ceramic heater, a magnetic plate, a first spring, and a second spring in sequence. A receiving portion is integrally provided behind the heating element, which can accommodate the ceramic heater, the magnetic plate, and the first spring. Furthermore, the first and second springs allow the heating element and the clamping arm to be fixed by pressing the receiving portion towards the hair contact surface.

[0125] Viewed from the opposite side, the heating element is formed into a rectangular plate shape using a lightweight material with high thermal conductivity, such as aluminum, and its surface is coated with fluorine.

[0126] It should be noted that protrusions can be provided on the upper and lower walls of the receiving part to limit the protruding movement of the heating part beyond a certain degree.

[0127] The ceramic heater is in the shape of a rectangular plate, heats up to a maximum temperature of about 180°, conducts heat to the heating part, and is electrically connected to the power supply cable side.

[0128] The magnet plate is formed into a rectangular plate shape using a 15,000 Gauss neodymium magnet, and the two clamping surfaces 3 and 4 are arranged with their S poles facing each other.

[0129] In this method, one of the force-applying parts is a first spring, which is formed by a leaf spring. It applies force to the magnet plate in the receiving part towards the back of the heating part, so that the ceramic heater is in close contact with the back of the heating part and provides stable support for the magnet plate.

[0130] As another force-applying component, a second spring can be cited. The second spring is supported at the rear end of the receiving portion and constitutes a force-applying component that elastically adjusts the clamping state of the clamping surfaces 3 and 4 by applying force to them. In the segmented configuration, the second spring is formed of a leaf spring with both ends inclined, and the end edges can engage with the protrusions on the segmented side in the left-right direction (length direction).

[0131] The front end sides 29 and 31 also contain core material. The core material is formed in a symmetrical shape. The description of the core material on one side will be provided, and the description of the core material on the other side will be omitted as it is the same as the description of the core material on one side.

[0132] The core material is housed along the length direction of the front end side 29 of the clamping arm at least to the gripping portion 21. However, the core material may also be housed from the front end side 29 of the clamping arm to the base end side 15 as a whole.

[0133] The core material maintains a hardness higher than that of the clamping arm at a temperature that limits thermal deformation of the clamping arm. Therefore, in this embodiment, the core material is formed of stainless steel or a material with a coefficient of linear expansion smaller than that of the resin material of the clamping arm. However, the core material can also be formed of titanium, ceramics, super engineering plastics, etc., as long as its coefficient of linear expansion is smaller than that of the clamping arm.

[0134] The core material can have integral fastening portions at both ends of a long, plate-shaped base. These fastening portions can be fastened together with the segmented parts for mutual engagement and fastening. Each fastening portion has a hole for a screw to pass through, and similarly, a hole is provided at its end. A pre-limiting portion can be continuously provided at one end of the core material along its length for pre-engaging with the segmented part. This pre-limiting portion has a positioning hole for engaging with a positioning pin protruding towards the segmented part. Furthermore, the pre-limiting portion has a hole for a screw to pass through for pre-limiting movement.

[0135] A longitudinal wall portion is provided along one side edge of the elongated plate-shaped base portion. The longitudinal wall portion also serves as a limiting portion for the clamping surface 3. Another longitudinal wall portion is provided along the other side edge of the base portion and the other side edge of the fastening portion and the pre-limiting portion.

[0136] In a hair straightener plate designed for segmentation, first and second fastening connecting walls may protrude from the longitudinal wall portion. These first and second fastening connecting walls may be positioned near the center of the U-shaped longitudinal wall portion. These first and second fastening connecting walls are fastened and fixed to the segmented portion of the clamp arm. Furthermore, the first fastening connecting wall is located between the two ends of the second spring. That is, the first fastening connecting wall can function as a support portion facing the back of the second spring, which serves as a force-applying part, and thus supporting the second spring.

[0137] Next, we will explain how to use the aforementioned hair straightener to straighten curly hair or correct artificially permed hair. It should be noted that the ability to perm hair using a hair straightener is self-evident.

[0138] First, when using the hair straightener, a first agent is applied to the hair. This agent is a solution with a pH of 6-10, made by adding alkaline substances such as ammonia, monoethanolamine, and triethanolamine to an aqueous solution mainly composed of thioglycolic acid, cysteine, and other thiol compounds (reducing agents). Through this application, the disulfide bonds of cysteine ​​in the keratin protein of the hair are reduced and cleaved into thiol groups. Then, the hair is washed with water, dried using a hairdryer, and finally straightened using a hair straightener heated to 140-180°C.

[0139] Specifically, by holding the gripping parts 21 and 23 of the clamping arms, applying force with the thumb and forefinger on the force points 25 and 27, hair is clamped between the heating parts of the clamping surfaces 3 and 4. Then, maintaining this state, the clamping arms slide towards the ends of the hair. As a result, the hair clamped between the heating parts, which are heated by the ceramic heater, is heated and straightened at the same time.

[0140] At this time, the hair moves at a prescribed speed between the opposing S-pole magnetic plates, thus generating reduction energy according to Fleming's right-hand rule. This energy is generated from the S-pole of the clockwise rotating magnetic plates, promoting the reduction of the first liquid. Furthermore, it also has the function of closing the cuticle layer, the outermost layer of the hair. When the cuticle layer is closed, it blocks ultraviolet rays from entering the hair shaft, preventing damage from ultraviolet radiation.

[0141] Furthermore, due to the energy of this reduction, the water clusters in the first liquid become smaller. This smaller water cluster increases the penetration of the first liquid into the hair. Consequently, the reducing effect of the first liquid is further promoted. As a result, styling time that may cause hair damage can be shortened, and hair damage can be inhibited.

[0142] Furthermore, a second liquid composed of an aqueous solution of oxidizing agents such as sodium bromate and hydrogen peroxide is then applied to the hair. As a result, the thiol groups are oxidized, causing the hair to form new disulfide bonds, which can fix the straight hair state.

[0143] When the hair is clamped and corrected in this way, the heat from the ceramic heater is also conducted to the front end sides 29 and 31 of the clamping arms, which reduces the hardness of the front end sides 29 and 31 of the clamping arms and makes them prone to deformation.

[0144] Therefore, without a core material, during the clamping operation between the heating elements, the front ends 29 and 31 of the clamping arms are prone to deformation due to the reaction force applied to them, which may prevent uniform clamping of the hair based on the heating elements. In contrast, by providing a core material, this problem can be improved.

[0145] That is, the core material is installed from the front end side 29, 31 to the holding part 21, 23. The holding part 21, 23 is kept at a temperature that is easy for a person to hold compared to the front end side 29, 31, so that the core material can be firmly supported on the holding part 21, 23.

[0146] Furthermore, the fastening portion of the core material that is firmly supported is located within the force points 25 and 27 of the holding portions 21 and 23, thereby enabling reliable transmission of force from the force points 25 and 27 to the core material.

[0147] By ensuring reliable force transmission to the core material, which supports the clamping surfaces 3 and 4, easy deformation of the front ends 29 and 31 can be prevented. Therefore, the heating elements can accurately clamp the hair facing each other, enabling reliable styling as described above.

[0148] Furthermore, in this embodiment, by applying force to the clamping surfaces 3 and 4 through the second spring portion, which serves as the force-applying portion, the clamping state of the clamping surfaces 3 and 4 can be elastically adjusted, thus enabling the above-mentioned shaping to be performed more reliably.

[0149] The movement of the clamping surfaces 3 and 4 in the protruding direction can be restricted by the longitudinal wall portion (provided in the core material) which serves as a limiting part. This can suppress the shaking of the clamping surfaces 3 and 4, and can maintain the reliable forward and backward movement of the clamping surfaces 3 and 4 generated by the force application of the second spring portion for a long time, and can reliably maintain the accurate clamping state of the heating part.

[0150] The second fastening connecting wall portion, which serves as the bearing portion, faces the back of the second spring portion, which serves as the force-applying portion, so that the two ends abut against each other and can bear the second spring portion, so that the reaction force of the second spring portion can reliably act on the heating portion.

[0151] Therefore, regardless of the thermal rise of the front ends 29 and 31, the clamping state of the clamping surfaces 3 and 4 based on the second spring can be reliably maintained. Furthermore, since the first fastening connecting wall portion, which serves as a bearing portion, is partially provided on the core material, even if the clamping arms taper from the gripping portions 21 and 23 towards the front ends 29 and 31, the shape can be formed without being affected by this. The base portion of the core material can be disposed on the flat bottom wall surface of the front ends 29 and 31 (corresponding to the flat portion at the bottom edge in the roughly trapezoidal cross-section of the front ends 29 and 31), and can be directly and naturally positioned to the gripping portions 21 and 23.

[0152] It should be noted that the present invention is not limited to the embodiments described above. For example, one or both of the clamping surfaces 3 and 4 can be fixed and immovable relative to the front end sides 29 and 31. The magnet plate and the first spring can be omitted. The longitudinal wall portion of the core material and the first fastening connecting wall portion can also be omitted.

[0153] Next, an example of a hair straightener having a curly surface, a curved surface, and a plane continuous with said curved surface will be described.

[0154] The above method has the following effect: by applying tension to the hair through the winding of the clamping arms, the hair can easily slide due to the curved surface of the clamping arms when pressing it against the surface to form a curl. Therefore, the tension applied to the hair through winding can be effectively utilized for pressing against the surface to form a curl, allowing for a full curling style.

[0155] In another method, hair with a curved surface set on the hot plate passes through both sides of the directional edge, and hair with a curved surface set on the front end side of the clamping arm passes through both sides of the directional edge, so that either side of the back of the hot plate faces the curved surface on the front end side of the clamping arm. This can change the degree of curl of the hair relative to the two curved surfaces, thus making it easy to create different curl styles.

[0156] In another embodiment, at least one of the corrector is supported on the clamping arm in a way that allows it to move forward and backward relative to the other side. The clamping arm is provided with a force-applying mechanism that applies force to the corrector and elastically adjusts the clamping state of the correctors relative to each other. A plane that is continuous with the curved surface is provided on the front end side of the clamping arm. When the corrector retracts, the hair wrapped around the curly surface extends in a straight line from the curly surface and can contact the curved surface or the plane. Therefore, the hair can be reliably clamped and corrected by the correctors that are arranged in opposite directions and can move forward and backward, and the curly hair can also be reliably styled.

[0157] In another approach, a plane that is continuous with the curved surface is orthogonal to the straightening surface. Since the plane and the curly-forming surface are close in the direction in which the hair passes through, the tension applied to the hair by winding can be directly used as a pressing force by sliding along the curved surface or the plane against the curly-forming surface, thus enabling more reliable and easier curling.

[0158] For other structures, please refer to the above description of the hair straightener. The following will focus on curved surfaces. Furthermore, although there are front sides 29 and 31, both front sides 29 and 31 are roughly trapezoidal shapes with rounded corners and approximately symmetrical cross-sections. Therefore, for simplicity, we will use one front side 29 for explanation.

[0159] The heating section of the clamping surface 3 has a flat straightening surface. However, this straightening surface is not limited to a flat structure and can be set as a curved surface, S-curve surface, or various other surfaces. It should be noted that the clamping surface 4 also has a straightening surface similar to the straightening surface, which faces each other.

[0160] The hair in the heating section passes through the directional edge (in) Figure 7 In the middle, from the near edge of the paper to the inner edge, both sides are provided with a portion along the thickness direction of the heating part. Figure 7 The curls (in the vertical direction) form a curved surface. The curved surface formed by the curls extends throughout the entire thickness of the heating section, forming a 1 / 4 circular arc.

[0161] On both sides of the hair-passing direction edge of the clamping arm front end 29, two surfaces are respectively provided as winding surfaces for curling hair (the cross section of the front end 29 in the direction perpendicular to the length direction can be set as a roughly trapezoidal shape with rounded corners, and the upper and lower bases of the roughly trapezoidal shape with rounded corners are respectively on the heating part side). That is, the upper base of the roughly trapezoidal shape with rounded corners can be set as the winding surface of the curved hair-curling surface, and the lower base can be set as the winding surface of the flat hair-curling surface, or vice versa. The curling surface can be formed at both ends of the heating part (clamping surface 3), and the winding surface can be formed at both ends of the clamping arm front end 29. By changing the degree of curling of the hair relative to the two curling surfaces according to the relationship between the curling surface and the winding surface, different curling styles can be easily created. That is, by using the curling surface at the end of the heating part and the winding surface of the clamping arm front end 29, two surfaces with different curvatures can be used.

[0162] The curling surface has a curvature that bends in the same direction as the curling surface. The surface of the lower base portion (which is longer than the upper base portion) with rounded corners is formed by an arc with a radius larger than that of the upper base portion.

[0163] The generally trapezoidal lower portion with rounded corners also has a plane continuous with the curved surface of the lower portion at the hair-passing end edge of the front end 29 of the clamping arm. This plane is formed orthogonally to the front end. The plane of the lower portion's winding surface is close to the protruding position of the lower portion's curled surface in the hair-passing direction. The lower portion's winding surface has a continuous curved surface on the opposite side relative to the front end.

[0164] On the other hand, the winding surface of the upper bottom portion with rounded corners, which is generally trapezoidal in shape, also has a winding guide surface that is continuous with the curved surface of the upper bottom portion of the hair passing direction edge of the front end side 29 of the clamping arm and has a larger radius of curvature (the reason why the cross section is set to a generally trapezoidal shape is that the cross section constitutes a plane and a curved surface, and the corner portion becomes a curved surface).

[0165] The clamping surface 3 is supported as described, allowing it to move forward and backward, by force applied by the second spring. Therefore, when the clamping surface 3 retracts, the hair wrapped around the curling surface of either the upper or lower portion extends linearly from both curling surfaces and contacts the corresponding curling surface. Alternatively, on the curling surface side, the linearly extending hair may directly contact the plane.

[0166] Furthermore, with the above structure, at least one of the hair-passing direction edge of the heating section is provided with a curling surface that bends along the thickness direction of the heating section, and at least one of the hair-passing direction edge of the clamping arm front end side 29 is provided with a winding surface having a curved surface or a plane for winding the hair, and the hair wound on the curling surface extends straight from the curling surface and contacts the curved surface or plane of the winding surface.

[0167] Furthermore, when the clamping surface 3 is retracted, the hair that forms a curved surface in the lower part extends in a straight line from the curved surface of the lower part and comes into contact with the curved or flat surface of the winding surface in the lower part.

[0168] Next, we will describe the use of the described hair straightener to straighten curly hair or to correct artificial perms.

[0169] First, when using the hair straightener, a first agent is applied to the hair. This agent is a solution with a pH of 6-10, made by adding alkaline substances such as ammonia, monoethanolamine, and triethanolamine to an aqueous solution mainly composed of thioglycolic acid, cysteine, and other thiol compounds (reducing agents). Through this application, the disulfide bonds of cysteine ​​in the keratin protein of the hair are reduced and cleaved into thiol groups. Then, the hair is washed with water, dried using a hairdryer, and finally straightened using a hair straightener heated to 140-180°C.

[0170] Specifically, by holding the gripping parts 21 and 23 of the clamping arms, applying force with the thumb and forefinger on the force points 25 and 27, hair is clamped between the heating parts of the clamping surfaces 3 and 4. Then, maintaining this state, the clamping arms slide towards the ends of the hair. As a result, the hair clamped between the heating parts, which are heated by the ceramic heater, is heated and straightened at the same time.

[0171] At this time, the hair moves at a prescribed speed between the opposing S-pole magnetic plates, thus generating reduction energy according to Fleming's right-hand rule. This energy is generated from the S-pole of the clockwise rotating magnetic plates, promoting the reduction of the first liquid. Furthermore, it also has the function of closing the cuticle layer, the outermost layer of the hair. When the cuticle layer is closed, it blocks ultraviolet rays from entering the hair shaft, preventing damage from ultraviolet radiation.

[0172] Furthermore, due to the energy of this reduction, the water clusters in the first liquid become smaller. This smaller water cluster increases the penetration of the first liquid into the hair. Consequently, the reducing effect of the first liquid is further promoted. As a result, styling time that may cause hair damage can be shortened, and hair damage can be inhibited.

[0173] Furthermore, a second liquid composed of an aqueous solution of oxidizing agents such as sodium bromate and hydrogen peroxide is then applied to the hair. As a result, the thiol groups are oxidized, causing the hair to form new disulfide bonds, which can fix the straight hair state.

[0174] Next, we will explain the process of perming hair using a hair straightener.

[0175] The hair clamping action performed by the clamping surfaces 3 and 4 is the same as described above. Furthermore, when perming, the hair is pressed against the curved surface of the upper or lower part of the curl. Therefore, while the hair is still clamped by the clamping surfaces 3 and 4, the main body of the perming iron is rotated to curl the hair towards the front end 29 or 31.

[0176] Thus, for example, when hair is wrapped around the curling surface of the heating section, the hair becomes a state in which it starts to wrap around the curling surface from the starting point of the curling surface and wraps around the curling surface to the ending point of the curling surface.

[0177] The hair extends in a straight line from the endpoint of the curly surface and contacts the surface at a point on the planar side of the curly surface. The hair that contacts the curly surface at the point then wraps around the planar surface and the curly surface in sequence. That is, in the roughly trapezoidal, rounded bottom portion, the hair can be wrapped around the curly surface → the curly surface of the curly surface → the planar portion → the curly surface.

[0178] Therefore, when styling curls, the hair makes full contact with the curved surface of the curler, allowing for a full curl. Furthermore, by applying tension to the hair through the winding of the clamp arms, the hair can easily slide along the curved and flat surfaces of the winding sides of the clamp arms when pressed against the curved surface. Thus, the tension applied to the hair through winding can be effectively utilized for pressing against the curved surface, resulting in a full curl.

[0179] The plane of the bottom portion is orthogonal to the front of the hair straightening. Since the plane is close to the protruding position of the hair-forming surface in the direction of hair passage, the tension applied to the hair by the winding can be directly used as the pressing force to press against the hair-forming surface by sliding more smoothly along the plane of the winding surface, which can make the hair straightening more reliable and easier.

[0180] By winding the hair around the curling surface, a pressure force can be generated on the hair relative to the curling surface. Since the plane is long and the distance between the curling surface and the curling surface is increased, a relatively large pressure force can be applied to the hair relative to the curling surface by rotating the clamping arm. From these points, it is possible to style hair more reliably and easily.

[0181] Next, when the hair is wrapped around the curling surface (the upper part of the curling surface with a roughly trapezoidal shape and rounded corners) on the other side of the heating section, the hair is wrapped from the starting point of the other curling surface to the middle point of the other curling surface.

[0182] The hair extends in a straight line from the midpoint of the curved surface formed by the curl on the other side, and also contacts the curved surface of the upper bottom part at a point. The hair that contacts the curved surface of the upper bottom part at this point is then sequentially wound onto the winding guide surface on the opposite side of the heating section.

[0183] Therefore, when styling curls by forming a curved surface with the curls in the upper part, the hair contacts the midpoint of the curve of the upper part's curled surface, thereby creating a curl style that is gentler than the curls in the lower part's curled surface. In other words, by changing the degree of curling of the hair relative to the two curved surfaces formed by the upper and lower parts, it is easy to create various variations of curl styles.

[0184] Furthermore, by applying tension to the hair through the winding of the clamping arms, when pressing the hair against the curved surface of the upper part of the curl towards the bottom, it is easy for the hair to slide on the curved surface and the winding guide surface of the upper part of the curling arms. Therefore, the tension applied to the hair through winding can be effectively utilized to press against the curved surface of the upper part of the curl, enabling reliable curl styling.

[0185] Furthermore, in this embodiment, since the curling surfaces of the upper and lower portions of the heating unit do not protrude compared to the hair-passing edge of the clamping arm, i.e., the curling surfaces of the upper and lower portions, the heating unit can be prevented from touching the person being styled during styling.

[0186] However, the heating element can also be configured to protrude beyond the hair-crossing edge of the clamping arm, i.e., the winding surface of the upper and lower portions. In this case, for example, a curling surface that bends along the thickness direction of the heating element is provided on one or both sides of the hair-crossing edge of the heating element (the upper or lower portion). This curling surface protrudes beyond the hair-crossing edge of the clamping arm. This curling surface can be formed throughout the entire thickness direction of the heating element, for example, in the form of a 1 / 2 arc.

[0187] The curved surface can be formed corresponding to the curled hair of the upper or lower part, and the hair passing direction edge of the front end 29 of the clamping arm is provided with a curved or flat winding surface for winding hair.

[0188] The curling surface of the upper or lower base portion has a curved surface that bends in the same direction as the curly surface. The curling surface of the upper or lower base portion has a plane that is continuous with the curved surface of the upper or lower base portion. This plane is set at an acute angle relative to the straightening front. The curling surface of the upper or lower base portion has a curling surface that is continuous with the plane on the opposite side relative to the straightening front.

[0189] When hair is wound onto the curling surface of the upper or lower part of the heating section, the hair is wound from the starting point of the curling surface of the upper or lower part to a point on the other side of the curling surface.

[0190] The hair extends in a straight line from the point where the curls form a curved surface on the upper or lower part, and contacts at a point on the plane of the winding surface. The hair that contacts the winding surface at the point on the plane then winds sequentially into a plane continuous with the winding surface.

[0191] Therefore, when styling curls using the curved surfaces formed by the upper or lower curls, the hair can come into contact with more than 1 / 4 of the arc of the curved surface, allowing for a steeper curl than that formed by the curved surface itself. Furthermore, by combining the two curved surfaces, various curl styles can be easily achieved.

[0192] Furthermore, by applying tension to the hair through the winding of the clamping arms, when pressing the hair against the curved surface of the upper or lower part of the curl, it is easy for the hair to slide on the plane of the winding surface on the clamping arm side. Therefore, the tension applied to the hair through winding can be effectively utilized for pressing against the curved surface of the curl, enabling reliable curl styling.

[0193] It should be noted that the present invention is not limited to the embodiments described above. For example, one or both of the clamping surfaces 3 and 4 may be fixed and immovable relative to the front end sides 29 and 31. The magnet plate, the first spring, etc., may also be omitted.

[0194] A study was conducted to investigate whether such a hair straightener could actually remove hydrogen peroxide.

[0195] <Decomposition temperature of hydrogen peroxide>

[0196] A hair bundle of approximately 1g of 100% human white hair (product number: BM-WA, manufactured by Beaulux Co., Ltd.) was bleached and used as a hair bundle to evaluate the state of residual hydrogen peroxide inside the hair. The decomposition temperature of hydrogen peroxide inside the hair was determined by the following method, and this temperature was set as the "hydrogen peroxide removal mode".

[0197] <Determination of Hydrogen Peroxide Concentration at Hair Perming Iron Temperature>

[0198] The bleaching agent 1 of Formula Example 1 and the bleaching agent 2 of Formula Example 2 were mixed in a 1:1 ratio until homogeneous. The mixture was applied to the hair strands and left at room temperature for 30 minutes. Then, it was rinsed with warm water, cleaned with the company's Oolong Shampoo (product name: NanoSupplement Cleansing Shampoo OT), rinsed again with warm water, and blow-dried. Then, the hair straightener of the present invention was set to 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, and 180°C, and the hair strands were passed through it three times. Then, each hair strand was wetted with water, and hydrogen peroxide concentration test paper (Mitsubishi Gas Chemical Trading Co., Ltd.: hydrogen peroxide concentration test paper) was pressed onto the ends, center, and roots of the hair strands for 5 seconds. Visual concentration determination and spectrophotometer color determination were performed. Table 1 shows Formula Example 1 (bleaching agent 1). Table 2 shows Formula Example 2 (bleaching agent 2).

[0199] [Table 1]

[0200] [Table 2]

[0201] <Determination of the hydrogen peroxide decomposition temperature in hair straighteners>

[0202] Next, visually confirm the hydrogen peroxide concentration test strips, as shown in Table 3.

[0203] [Table 3]

[0205] The hydrogen peroxide concentration test strips were measured in the L*a*b* color space using a spectrophotometer (model: CM-36dG, KONICA MINOLTA, INC.), as shown in Table 4. Figure 1 As shown, when the hydrogen peroxide concentration is high, the hydrogen peroxide concentration test paper shows a bluer color. Therefore, when using a spectrophotometer, the lower the b* value, the higher the hydrogen peroxide concentration. According to Tables 3 and 4, temperatures above 150°C are more appropriate for a significant reduction in hydrogen peroxide concentration. Therefore, the "hydrogen peroxide removal" mode can be set to 150°C.

[0206] [Table 4]

[0208] Based on these results, it can be seen that by operating the hair straightener while effectively reducing hydrogen peroxide, hair damage can be significantly reduced.

[0209] It should be noted that although the description refers to an asymmetrical shape when viewed from above, the shape can be changed depending on the intended use. For example, when using a hair straightening and curling iron, it can be set to be basically symmetrical.

[0210] Explanation of reference numerals in the attached figures

[0211] 1 First clamping arm

[0212] 2 Second clamping arm

[0213] 3 First clamping surface

[0214] 4 Second clamping surface

[0215] 5. Hydrogen peroxide reduction device

[0216] 6. Temperature control device

[0217] 7 Connecting components

[0218] 8 Connecting components

[0219] 9 switches

[0220] 15, 17 basal side

[0221] 19 Rotation axis

[0222] 21, 23 Control Department

[0223] 25, 27 Power Point Department

[0224] 29, 31 Front end

[0225] 33. Front side, side 29 and 31

[0226] 35. One side of the holding part 21, 23

[0227] 37. Surfaces 33 and 35 are inclined surfaces.

[0228] 39 The other side of the front end sides 29 and 31

[0229] 50 core material

[0230] 51 boards and others

[0231] 60 plates (heating section)

[0232] 61 Ceramic heater (heating source)

[0233] 62 Mica Board

[0234] 63 Bimetallic

[0235] 64 Bimetallic Pressing Components

[0236] 65. Magnet pressing leaf spring

[0237] 66 Leaf spring (force application part)

[0238] 67 magnets

Claims

1. A hair straightening iron, said hair straightening iron having: A first clamping arm and a second clamping arm are connected to form an opening and closing mechanism; A first clamping surface is disposed on the inner side of the first clamping arm; The second clamping surface is disposed on the inner side of the second clamping arm; and A heating element is disposed on the first clamping surface and the second clamping surface and is used to heat the hair. The hair straightener is characterized in that... The heating element has a layer made of at least platinum.

2. The hair straightening iron according to claim 1, characterized in that, The heating element also has a layer composed of at least one of nickel, copper, electroless nickel, or aluminum.

3. The hair straightening iron according to claim 1 or 2, characterized in that, The thickness of the platinum layer is 0.05~1.0μm.

4. The hair straightening iron according to any one of claims 1 to 3, characterized in that, The surface of the heating element is polished and ground.

5. The hair straightening iron according to any one of claims 1 to 4, characterized in that, The first clamping arm and / or the second clamping arm are equipped with a hydrogen peroxide reduction device.

6. The hair straightening iron according to any one of claims 1 to 5, characterized in that, The first clamping arm and / or the second clamping arm are also equipped with a temperature control device.

7. The hair straightening iron according to any one of claims 1 to 6, characterized in that, The hydrogen peroxide reduction device reduces hydrogen peroxide by setting a temperature.

8. The hair straightening iron according to claim 7, characterized in that, The temperature is above 80°C.

9. The hair straightening iron according to claim 7, characterized in that, The temperature is 140℃~180℃.

10. The hair straightening iron according to any one of claims 1 to 9, characterized in that, The hair straightener also has a connecting member that connects the first clamp arm and the second clamp arm.

11. The hair straightening iron according to claim 6, characterized in that, The hydrogen peroxide reduction device and the temperature control device are integrated into one unit.

12. The hair straightening iron according to claim 6, characterized in that, The first clamping arm and / or the second clamping arm are equipped with switches for the hydrogen peroxide reduction device and the temperature control device.

13. The hair straightening iron according to claim 10, characterized in that, The connecting component is one or more.

14. The hair straightening iron according to any one of claims 1 to 13, characterized in that, The first clamping arm and / or the second clamping arm have a force-applying part that applies force to the clamping surfaces to elastically adjust the clamping state between the clamping surfaces.

15. The hair straightening iron according to any one of claims 1 to 14, characterized in that, The first clamping arm and / or the second clamping arm are fitted with core material in a manner that extends along the length direction.

16. The hair straightening iron according to any one of claims 1 to 15, characterized in that, The core material has a limiting part that engages the clamping surface to restrict its movement in the protruding direction relative to the first clamping arm and / or the second clamping arm.

17. The hair straightening iron according to any one of claims 1 to 16, characterized in that, At least one of the hair passing through the direction edge of the heating section has a curling surface that bends along the thickness direction of the heating section.

18. The hair straightening iron according to any one of claims 1 to 17, characterized in that, The hair passing direction edge on the front end side of the first clamp and / or the second clamp has a curved surface.

19. The hair straightening iron according to claim 17 or 18, characterized in that, The hair straightener also has the hair-forming curved surface and / or a plane continuous with the curved surface.

Images