WO2022181006A1 - 頭髪頭皮のケア方法及び頭髪頭皮のケア装置 - Google Patents
頭髪頭皮のケア方法及び頭髪頭皮のケア装置 Download PDFInfo
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- WO2022181006A1 WO2022181006A1 PCT/JP2021/046773 JP2021046773W WO2022181006A1 WO 2022181006 A1 WO2022181006 A1 WO 2022181006A1 JP 2021046773 W JP2021046773 W JP 2021046773W WO 2022181006 A1 WO2022181006 A1 WO 2022181006A1
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- hair
- fine water
- applying
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- scalp care
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
- A45D19/0041—Processes for treating the hair of the scalp
- A45D19/0066—Coloring or bleaching
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D7/00—Processes of waving, straightening or curling hair
- A45D7/02—Processes of waving, straightening or curling hair thermal
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D7/00—Processes of waving, straightening or curling hair
- A45D7/04—Processes of waving, straightening or curling hair chemical
Definitions
- the present invention relates to a hair and scalp care method and a hair and scalp care device for caring for the hair or scalp.
- Patent Document 1 discloses a hair coloring method configured to increase the temperature of the hair by giving steam to the hair when applying a chemical, and to keep the surroundings of the hair in a high humidity state. By raising the temperature of the hair, the reaction of the drug applied to the hair is promoted, and by placing the hair in a high-humidity environment, the hair is moistened and the penetration of the drug into the hair is promoted. Furthermore, in the hair coloring device according to Patent Document 1, the temperature is set by mixing the steam generated by the steam generator with the outside air in the mixing chamber, and the condensed water generated by the steam cooling at the time of setting the temperature is condensed in the mixing chamber space. It is configured so that it can be separated and only steam at a set temperature can be delivered. According to this, the condensed water generated by the steam cooling is removed, so that the chemical applied to the hair is prevented from being diluted by the condensed water.
- the present disclosure includes a washing process of washing a target part of the head, which is one or both of the hair and scalp of a human body, a drying process of drying the target part of the head washed in the washing process, and a target part of the head, and a step of applying fine water particles having a size of 50 nanometers or less.
- the size of the fine water particles applied to the target part of the head is as small as 50 nanometers or less, and the applied fine water particles enter the target part of the head.
- the fine water particles are non-charged particles, they will not be attracted to the surface of the hair which is positively charged, and will more easily enter the target part of the head. Therefore, by executing the fine water particle application step, water is supplied to the target part of the head, and the damage to the target part of the head can be reduced or the damaged target part of the head can be repaired.
- the fine water particles imparted to the head target portion by executing the fine water particle application step efficiently permeate the head target portion, after the fine water particle application step is executed, the surface of the head target portion is almost non-wet. Therefore, when a chemical is used, the chemical will not be diluted by water remaining on the surface of the target part of the head.
- the drug efficiently permeates the hair/scalp together with the fine water particles, the effect of the drug can be enhanced.
- the hair and scalp care method according to the present disclosure does not need to include the drug application step of applying the drug to the target part of the head.
- the step of applying fine water particles can reduce the damage to the target head portion that was originally damaged or repair the target head portion without applying a chemical agent.
- the execution of the step of applying fine water particles makes it possible to moisturize and soften the hair, and to reduce the damage of the hair by suppressing the lifting of the cuticle, or to repair the damaged hair. and improve the luster of the hair.
- the hair and scalp care method further includes a drug application step of applying a drug to the target part of the head, and the washing step is configured to be performed after a predetermined time has elapsed from the end of execution of the drug application step. Also good.
- the effect of the chemical agent can be further enhanced by executing the step of applying fine water particles.
- the execution of the step of applying fine water particles makes it possible to soften the hair by moisturizing it, and to reduce the damage of the hair by suppressing the lifting of the cuticle, or to repair the damaged hair. and thereby improve the luster of the hair.
- the execution of the step of applying fine water particles reduces damage to the scalp and alleviates irritation caused by the drug.
- the drug application process may be executed multiple times in a series of processes.
- the cleaning process may be performed after each chemical application process is completed, or may be performed only once after the final chemical application process is completed.
- the fine water particle applying process can be performed before or after the execution of any chemical application process.
- the fine water particle application process is performed after one chemical application process is completed and before the next chemical application process is started (i.e., chemical application and chemical application ) can be executed.
- the washing process is executed after the execution of one chemical application process is completed and before the execution of the next chemical application process is started
- the fine water particle applying process is performed after the execution of the one chemical application process is completed. It can be executed before the start of execution of the cleaning process, or it can be executed after the end of execution of the cleaning process and before the start of execution of the next chemical application process.
- the drugs used in each drug application process may be different types of drugs or may be the same type of drug.
- the chemical used in one chemical application step may be a perming agent
- the chemical used in another chemical application step may be a bleaching agent.
- the drug application process is executed a plurality of times.
- a drug application step of applying the first drug and a drug application step of applying the second drug are performed.
- the same kind of medicine may be used for all of the medicines used in the multiple medicine application steps.
- the chemical components used in each chemical application step may be changed, or the same chemical components may be used.
- the chemical used in the chemical application process may be a coloring agent. According to this, by executing the fine water particle imparting step, it is possible to enhance the color development of the coloring agent applied to the hair and to suppress the fading of the color. In addition, damage to the hair caused by applying the coloring agent is reduced.
- the chemical used in the chemical application step may be a perming agent. According to this, the damage to the hair due to the application of the perming agent is reduced by the application of the fine water particles, and the hair is easily formed into a desired shape.
- the chemical used in the chemical application step may be any one of a treatment agent, a bleaching agent, and a curly hair straightening agent.
- the drug used in the drug application step is a treatment agent
- the hair can be made softer by executing the fine water particle application step, and the tips of the hair can be more comfortable to the hands.
- the state in which "the hair is comfortable to the hand” means the state in which "the hair is highly flexible and the shape of the hair easily changes according to the amount of force applied when the hair is touched by the hand.” do.
- the chemical used in the chemical application step is a bleaching agent, the effect of bleaching the hair can be enhanced by executing the fine water particle imparting step.
- the execution of the fine water particle imparting step has the effect of making it easier to change the shape of the hair into a desired shape, and makes it easier to maintain the shape of the hair in a desired shape. It is possible to obtain the effect of softening the hair and improving the texture of the finished hair.
- the target part of the head is hair
- the fine water particle applying step is performed after the execution of the chemical application step (preferably after the chemical application step is completed and before the drying step is started, more preferably the chemical application step). and before the start of the washing step), in the fine water particle applying step, fine water particles are applied to the hair in the direction from the tip of the hair to the root of the hair. should be given. According to this, fine water particles efficiently permeate into the hair by flowing from the tip side of the hair toward the root side of the hair. Along with this, the drug applied to the hair also efficiently permeates into the hair. As a result, the effect of the drug can be enhanced.
- the fine water particles are applied to the hair in the fine water particle applying step. It is preferable to apply the particles in a direction from the base of the hair to the tip of the hair. According to this, it is possible to allow the fine water particles to permeate into the hair, and to prepare the cuticles that are open toward the tip side of the hair, thereby repairing the damage of the hair.
- the target part of the head is the hair
- the chemical is a perming agent containing a liquid first chemical and a second chemical
- the chemical application step includes the first chemical. and a second chemical application step of applying the second chemical to the hair after the execution of the first chemical application step. It can also be configured to be executed before the start of execution of the process, or after the end of execution of the first medicine application process and before the start of execution of the second medicine application process. According to this, by applying the fine water particles to the hair before applying the first chemical to the hair, the function of the first chemical can be exerted on the hair at an early stage. Further, by applying the fine water particles to the hair after applying the first drug to the hair and before applying the second drug to the hair, the function of the second drug can be exerted on the hair at an early stage. .
- the first agent has a function of cutting the internal tissue of the hair
- the second agent has a function of binding the internal tissue of the hair that has been cut by the first agent
- the hair and scalp care method comprises: A first leaving step of leaving the hair for a first predetermined time period immediately after the execution of the one chemical application step is completed, and a second leaving step of leaving the hair for a second predetermined time immediately after the execution of the second chemical application step is completed. It's okay to be there.
- the fine water particle applying step can be performed after the first standing step is completed and before the second chemical application step is started.
- the internal tissue of the hair is cut and the shape of the hair can be freely changed.
- the internal tissues of the cut hair are reunited.
- the hair is made to conform to the desired winding shape, and the hair is fixed in that shape.
- fine water particles are applied to the hair so that the hair is cut.
- the underlying internal tissues are more mobile, thereby allowing the shape of the hair to easily conform to the desired winding shape.
- the time required for setting the hair into the desired winding shape by applying the second chemical thereafter that is, the second predetermined time is shortened. Therefore, it is possible to shorten the perm treatment time including the step of applying fine water particles. Moreover, since the time (second predetermined time) for exposing the hair to the second chemical can be shortened, the degree of damage caused to the hair by the second chemical can be reduced.
- the fine water particle imparting step can be performed after the washing step is completed and before the drying step is started. According to this method, fine water particles are applied to the hair when the hair is wet after the washing process is completed and before the drying process is started, thereby reducing or removing the peculiarity of the hair. can be done.
- the hair/scalp care method may include a finishing process of arranging the hair, which is executed after the drying process is completed.
- the fine water particle imparting step is preferably performed during a period from before the start of the chemical application step to after the completion of the finishing step.
- the texture of the hair can be changed by executing the fine water particle applying step at a predetermined timing in the hair care method including the finishing step.
- the fine water particle imparting step before the execution of the finishing step for example, after the drying step is finished and before the finishing step is started, the hair can be finished with a soft and fluffy texture. can.
- the fine water particle imparting step after finishing the finishing step the hair can be finished with a moist texture.
- the hair and scalp care method includes a plurality of chemical application steps of applying the plurality of treatment agents to the hair
- the fine water particle application step can be performed after any one of the plurality of chemical application steps or after the drying step, depending on the condition of the hair.
- the hair and scalp care method has a finishing step, the step of applying fine water particles is carried out after any one of the plurality of chemical application steps, depending on the state of the hair and the desired finished feeling, followed by the drying step. and after the finishing process.
- the hair and scalp care method can be configured to include a heat treatment step of heat-treating the hair.
- the fine water particle imparting step can be performed before starting the heat treatment step.
- the fine water particle application step may include a first fine water particle application step that is performed before starting the heat treatment step, and a second fine water particle application step that is performed after the heat treatment step is completed.
- the heat treatment step is a step of applying heat to the hair to maintain the desired shape of the hair.
- the hair by applying fine water particles to the hair before heat-treating the hair in a hair straightening treatment, the hair can be softened at the time of finishing, and the hair can be shaped into a predetermined shape by the heat treatment. It can enhance the effect of trimming.
- the finished hair by applying fine water particles to the hair again after the heat treatment, the finished hair can be further softened.
- the fine water particle application process may be performed after the washing process is completed or after the drying process is completed.
- the fine water particle imparting step is performed at least one of after the washing step is finished and before the drying step is started, simultaneously with the drying step, and after the drying step is finished. Also good.
- fine water particles are applied to the target part of the head, and damage to the target part of the head is reduced or the target part of the head that has received damage is repaired.
- fine water particles are applied to the head target portion while drying the wet target head portion (for example, hair). As a result, the process time can be shortened.
- the fine water particles are applied to the dry target part of the head (for example, hair).
- the fine water particles can be efficiently permeated into the target part of the head, and the effect of repairing damage to the target part of the head can be enhanced.
- the step of applying fine water particles it is preferable to apply fine water particles whose temperature does not exceed 40°C to the target part of the head.
- the temperature of the fine water particles applied to the target part of the head is not as high as 40° C. or lower, so the target part of the head is not exposed to high temperatures. Therefore, the target part of the head is not damaged by executing the fine water particle application step.
- the present disclosure is a fine water particle generating element ( 11), applying means (12) for applying the fine water particles emitted by the fine water particle generating element (11) to a target part of the head, which is one or both of the hair and scalp of the human body, and the fine water particle generating element.
- a control means (23) for controlling (11) and a applying means (12), and fine water particles are supplied between a period before washing the target part of the head and a period after drying the target part of the head. and an operating part (21) that is operated to apply to a target part of the head.
- fine water particles having a size of 50 nanometers or less emitted from the fine water particle generating element in the released state are applied to the target part of the head, thereby reducing or preventing damage to the target part of the head.
- the affected head target area can be repaired.
- the operation unit (21) performs the It may be configured to be operated to apply fine water particles to the head target portion. According to this, the effect of the drug can be further enhanced.
- the hair and scalp care device may be configured such that the control means (23) applies fine water particles having a temperature not exceeding 40°C to the target part of the head. According to this, since the temperature of the fine water particles emitted from the fine water particle generating element and applied to the target part of the head is not as high as 40° C. or less, the target part of the head is not exposed to high temperatures. Therefore, the target part of the head is not damaged by executing the fine water particle application step.
- the hair and scalp care device may be configured such that the control means (23) applies fine water particles having a temperature equal to or higher than the glass transition point of the protein structure of the hair to the target part of the head. good. According to this, the fine water particles emitted from the fine water particle generating element and applied to the target part of the head permeate the hair, thereby facilitating the structural change of the hair. Therefore, it is possible to enhance the effect of reducing hair damage or repairing damaged hair.
- the target part of the head to which fine water particles are applied by the applying means (12) includes hair, and the fine water particle generating element (11) has fine water particles larger than a single molecule of water. By releasing water particles, fine water particles may remain in the hair and improve the condition of the cuticle of the hair.
- the target part of the head to which fine water particles are applied by the applying means (12) includes hair, and the fine water particle generating element (11) emits uncharged fine water particles.
- the fine water particles may penetrate into the hair and improve the state of the cuticle of the hair.
- FIG. 1 is a diagram showing a schematic configuration of a fine water particle discharge device.
- FIG. 2 is a diagram showing a schematic configuration of a fine water particle generating element.
- FIG. 3 is a schematic cross-sectional view of the fine water particle generating element.
- FIG. 4A is a diagram showing the execution order of each step of the care method according to the first embodiment.
- FIG. 4B is a diagram showing an example of the execution order of steps when the drug application step is performed twice according to the first embodiment.
- FIG. 4C is a diagram showing another example of the execution order of steps when the drug application step is performed twice according to the first embodiment.
- FIG. 5 is a bar graph showing the color difference for samples A1, B1, C1, and D1 that were colored by each of the treatments AD.
- FIG. 5 is a bar graph showing the color difference for samples A1, B1, C1, and D1 that were colored by each of the treatments AD.
- FIG. 6 is a diagram comparing the color differences S7 and S14 for each of the samples A2, C2, D2 and the conventional sample.
- FIG. 7 is an appearance photograph of samples A3, B3, and C3 that have been permed after bleaching.
- FIG. 8 is an SEM image (1000x) of hair after bleaching by treatment B.
- FIG. 9 is an SEM image (1000 ⁇ ) of hair after bleaching by conventional processing.
- FIG. 10 is a diagram showing the execution order of each step of the care method according to the second embodiment.
- FIG. 11 is a graph showing the results of evaluating the presence or absence of gloss at the base of hair of each sample before and after the step of applying fine water particles.
- FIG. 12 is a graph showing the results of evaluating the presence or absence of gloss on the ends of each hair sample before and after the step of applying fine water particles.
- FIG. 13 is a graph showing subjective evaluation of hardness of each sample.
- FIG. 14 is a graph showing changes in stiffness before water application, stiffness immediately after water application, and stiffness one day after water application, calculated for each sample.
- FIG. 15 is an SEM image (1000 times) of hair extracted from sample A5.
- FIG. 16 is an SEM image (1000 times) of hair extracted from sample B5.
- FIG. 17 is an SEM image (1000 ⁇ ) of hair extracted from sample C5.
- FIG. 18 is a schematic diagram showing the orientation of the hair cuticle.
- FIG. 15 is an SEM image (1000 times) of hair extracted from sample A5.
- FIG. 16 is an SEM image (1000 times) of hair extracted from sample B5.
- FIG. 17 is an SEM image (1000 ⁇ ) of hair extracted from sample C5.
- FIG. 18 is a schematic diagram showing the orientation
- FIG. 19 is a graph comparing the bending stiffness reduction rates obtained for samples A6, B6, C6, D6, E6, and N6.
- FIG. 20 is a graph comparing hysteresis change widths obtained for samples A6, B6, C6, D6, E6, and N6.
- FIG. 21 is a diagram showing the execution order of each step of the treatment, showing the execution timing of the fine water particle application step executed in each sample of Example 10.
- FIG. FIG. 22 is a diagram showing an example of the properties of each drug used in each drug application step of Example 10.
- FIG. FIG. 23 shows the effect on the hair after the treatment, the finished feeling, and the timing of applying the fine water particles at the timings C6, D6, E6, and F6 in FIG. It is a table showing the hair quality suitable for.
- FIG. 24 is a diagram showing the relationship between the hysteresis change width and the bending stiffness value change rate measured for each of samples C6, D6, F6, and P6.
- FIG. 25A shows each step of conventional perm treatment using two liquids (first drug and second drug).
- FIG. 21B shows each step of perm treatment using two liquids (first drug and second drug) according to the fourth embodiment.
- FIG. 22 is a diagram showing each step of conventional processing, processing F1, processing F2, and processing F3 in the eleventh embodiment.
- FIG. 27 is a diagram comparing wave efficiencies of samples A7, B7, C7, and D7 for which perm treatments were performed by each process.
- FIG. 28 is a diagram showing each step of bleaching treatment according to the fifth embodiment.
- FIG. 29A is a diagram showing each step of bleaching treatment by the first comparison process.
- FIG. 29B is a diagram showing each step of bleaching treatment by the second comparison process.
- FIG. 30 shows photographs of samples A8, B8, and C8 subjected to bleaching by each treatment (this embodiment treatment, first comparison treatment, and second comparison treatment).
- FIG. 31 is a diagram showing an example of treatment involving heat treatment.
- FIG. 32 is a diagram showing each step of the curly hair straightening treatment performed in Example 13.
- FIG. FIG. 33 is a graph comparing the flexural rigidity reduction rates determined for samples A9, B9, C9, D9, and N9.
- the hair care method involving the application of chemicals is performed through at least the following four steps.
- (1) Chemical Application Process the chemical is applied to the hair.
- a coloring agent is applied to the hair
- a treatment agent is applied to the hair
- a perming agent is applied to the hair
- a bleaching agent is applied to the hair.
- the coating method is generally brush coating, but spray coating may also be used.
- Second Washing Step In the washing step, the hair is washed to remove the chemicals applied to the hair. This washing is generally washing with water, but a chemical (cleaning chemical) for cleaning the chemical applied in the chemical application step may be used.
- the cleaning agent may be applied to the hair before washing with water, or the hair may be washed with the cleaning agent mixed with water.
- Cleaning methods generally include water washing with a shower. Therefore, the hair that has completed the washing process is wet.
- Drying Step In the drying step, the hair that has been washed and wet in the washing step is dried.
- a drying method a method of blowing warm air or hot air onto wet hair using a dryer to blow off or evaporate water from the hair to remove water is generally used.
- Fine water particle application step In the fine water particle application step, fine water particles are applied to the hair. This fine water particle imparting step will be described later.
- the chemical application process, washing process, and drying process are executed in this order.
- the cleaning process is performed after a predetermined time has passed since the execution of the chemical application process is completed.
- the hair is left for a while after the execution of the chemical application step is completed. Therefore, after the execution of the medicine application process is completed, the leaving process is executed until a predetermined time has passed.
- This predetermined time (leaving time) varies depending on the medicine to be applied, but can be exemplified from 5 minutes to 30 minutes.
- the chemical applied to the hair permeates and reacts with the hair. Therefore, it can be said that the permeation/reaction of the drug is in progress during this predetermined time (leaving time).
- the standing step can also be said to be the permeation/reaction step of the drug.
- the chemical permeates and reacts with the hair, thereby exerting a predetermined effect on the hair.
- this effect is to dye the hair to a predetermined color
- in the case of treatment treatment it is the effect of nourishing the hair and softening the hair
- in the case of bleach treatment is the effect of bleaching the color of the hair
- in the case of a perm treatment it is the effect of forming an appropriate wave shape on the hair.
- the hair damage is repaired. may be performed.
- fine water particles are applied to the hair as described above.
- the temperature does not exceed 40°C (preferably less than 40°C, more preferably 25°C or more and less than 40°C), and a plurality of particles having a size of 50 nm or less
- Fine water particles are carried to the hair together with the air by blowing air, for example, and applied to the hair.
- fine water particles are applied to the hair together with air using a fine water particle discharge device.
- FIG. 1 is a diagram showing a schematic configuration of a fine water particle discharge device. As shown in FIG. 1 , the fine water particle emitting device 1 includes a fine water particle emitting unit 10 and a control unit 20 .
- a fine water particle emitting unit 10 provided in the fine water particle emitting device 1 includes a fine water particle generating element 11, a fan 12, an inlet filter 13a, an outlet filter 13b, and a case 14.
- the case 14 is formed in a substantially cylindrical shape, and a channel 14a communicating from one end to the other end is formed inside.
- An inlet filter 13a is attached to one end of the case 14, and an outlet filter 13b is attached to the other end.
- the case 14 has a first case portion 141 and a second case portion 142, which are formed so as to be connected along the axial direction.
- the opening of the first case portion 141 forms an inlet port 14in at one end of the case 14
- the opening of the second case portion 142 forms an outlet port 14out at the other end of the case 14 .
- the fan 12 is a propeller fan that is rotationally driven by a motor (not shown), and is accommodated in the flow path 14a inside the first case portion 141 of the case 14.
- the fan 12 may be a sirocco fan or the like.
- the fan 12 rotates in conjunction with the rotation of the motor, sucks air into the flow path 14a from the inlet 14in of the case 14, and discharges the sucked air from the outlet 14out of the case 14. Configured.
- the fine water particle generating element 11 is arranged inside the flow path 14 a of the case 14 together with the fan 12 .
- the fine water particle generating element 11 is arranged in the flow path 14 a inside the second case portion 142 of the case 14 .
- the fine water particle generating element 11 is disposed downstream of the flow path 14a (closer to the outlet 14out) than the fan 12 is.
- FIG. 2 is a diagram showing a schematic configuration of the fine water particle generating element 11 arranged inside the second case portion 142.
- the fine water particle generating element 11 is arranged so as to extend over the entire cross section of the flow path 14a in the second case portion 142.
- the fine water particle generating element 11 is formed so that air can flow. Therefore, the air flowing through the flow path 14 a from the inlet 14 in toward the outlet 14 out passes through the fine water particle generating element 11 .
- FIG. 3 is a schematic cross-sectional view of the fine water particle generating element 11.
- the fine water particle generating element 11 has a substrate 111 and a conductive polymer film 112 formed on one surface or both surfaces (one surface in FIG. 3) of the substrate 111 .
- the base material 111 is made of metal materials such as stainless steel metals and copper metals, carbon materials, conductive ceramic materials (e.g., ITO), conductive resin materials (e.g., metal-deposited resin films, nano-silver coating resins, CNTs, etc.). (carbon nanotube) coating resin), etc., is formed of a material having conductivity.
- a stainless steel metal foil to which aluminum is added is used.
- the base material 111 is formed in a shape that allows the air in the channel 14a to flow when it is arranged in the channel 14a. Further, the base material 111 is formed so as to maximize the contact area with the air flowing in the flow path 14a when arranged in the flow path 14a, that is, to maximize the surface area.
- the base material 111 may be formed of, for example, a plurality of flat plates. Further, the base material 111 may be formed so that the cross-sectional shape perpendicular to the flow path 14a has a honeycomb shape or a spiral shape.
- the conductive polymer film 112 is formed in a film shape from a conductive polymer compound, for example, a thiophene-based conductive polymer compound.
- the conductive polymer film is formed of PEDOT/PSS (poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonic acid)) among thiophene-based conductive polymers.
- PEDOT/PSS exhibits a core-shell structure in which a core of water-insoluble PEDOT aggregates is surrounded by a hydrophilic PSS (shell), and the single core-shell shape is generally ellipsoidal.
- the conductive polymer film 112 is formed in a film shape. Then, nanometer-sized gaps of about 2 nm are formed between the adjacent core-shell particles, and the gaps are connected to form nanochannels that are open on the surface of the conductive polymer film 112 .
- the central core (PEDOT) of each core-shell particle is hydrophobic, many hydrophilic sulfonic acid groups are present on the periphery of the shell (PSS). Therefore, many sulfonic acid groups are present in the nanochannels surrounded by the outer walls of the core-shell particles.
- the sulfonic acid group is a polar functional group and capable of hydrogen bonding. Therefore, the moisture in the air inside the nanochannel can form hydrogen bonds with the sulfonic acid groups and be retained inside the nanochannel as bound water.
- the moisture concentration difference between the two is used as a driving source to move the water on the surface into the nanochannel, thereby binding retained as water. This allows water to be absorbed into the nanochannels.
- the water concentration difference between the two is the driving source, and the bound water in the nanochannel moves toward the surface. Water is discharged from the nanochannel.
- the conductive polymer film 112 is configured to switch between an absorption state of absorbing water and a release state of releasing water depending on the difference in water concentration.
- the conductive polymer film 112 is also configured to switch between the absorption state and the release state depending on the temperature change.
- the channel width of the nanochannel is approximately 2 nm. Therefore, the moisture released from the nanochannels is nanoparticles with a size of 2 nm or less. Nanoparticles (fine water particles) with a size of 2 nm remain at a size of 50 nm or less even if they aggregate (cluster) near the opening of the nanochannel. Therefore, the size (for example, particle diameter) of fine water particles released from the conductive polymer film 112 is 50 nm or less. Additionally, the bound water retained within the nanochannel is uncharged. Accordingly, fine water particles having a size of 50 nm or less and being uncharged are emitted from the conductive polymer film 112 .
- the control unit 20 included in the fine water particle emitting device 1 includes an operation section 21, a power supply circuit 22, and a control section 23.
- the operation unit 21 is composed of, for example, a plurality of operation buttons provided on the surface of a housing or the like that supports the fine water particle emitting unit 10 . These operation buttons are operated by the user in order to turn on/off the power, select an operation mode, and the like.
- Power such as AC 100 V is supplied to the power supply circuit 22 .
- the power supply circuit 22 is electrically connected to the motor of the fan 12 by a first wire 24 and electrically connected to the substrate 111 of the fine water particle generating element 11 by a second wire 25 .
- the power supply circuit 22 is configured to convert the supplied electric power into electric power suitable for driving the motor of the fan 12 and output the converted electric power to the first electric wire 24 . Further, the power supply circuit 22 is configured to convert the supplied power into power suitable for supplying to the base material 111 and output the converted power to the second wire 25 .
- a first normally open changeover switch 26 is interposed in the first electric wire 24, and a second normally open changeover switch 27 is interposed in the second electric wire 25.
- the first normally open changeover switch 26 cuts off the conduction of the first wire 24 by opening, and allows the conduction of the first wire 24 by closing.
- the second normally open changeover switch 27 cuts off the conduction of the second wire 25 by opening, and allows the conduction of the second wire 25 by closing.
- the operation status of the operation unit 21 is input to the control unit 23 .
- the control unit 23 controls the switching states of the first normally open changeover switch 26 and the second normally open changeover switch 27 according to the input operation status of the operation unit 21 .
- the fine water particle emitting device 1 configured to be able to operate according to either the "water absorption mode" or the "water discharge mode".
- the mode may be automatically selected by judging the condition of the hair or scalp, or the mode may be manually selected by the user operating the operation button of the operation unit 21. can be performed.
- other operation modes may exist besides the water absorption mode and the water discharge mode.
- the control unit 23 controls each changeover switch so that both the first normally open changeover switch 26 and the second normally open changeover switch 27 are closed.
- power is supplied from the power supply circuit 22 to both the motor of the fan 12 and the substrate 111 of the fine water particle generating element 11 .
- the motor rotates, and the fan 12 rotates in conjunction with this rotation, and air is sucked into the flow path 14a from the suction port 14in of the case 14.
- FIG. The air sucked into the flow path 14a passes through the fine water particle generating element 11 and is then discharged from the discharge port 14out.
- the base material 111 of the fine water particle generating element 11 when the base material 111 of the fine water particle generating element 11 is energized and current flows through the conductive base material 111, the base material 111 generates Joule heat to generate heat.
- the heat generated by the base material 111 is transferred to the conductive polymer film 112 on the base material 111, whereby the temperature of the conductive polymer film 112 rises.
- the conductive polymer film 112 itself may be energized to generate heat and raise the temperature, or the space in which the conductive polymer film 112 exists may be warmed to raise the temperature. As the temperature of the conductive polymer film 112 rises in this way, water discharge from the conductive polymer film 112 is promoted.
- the controller 23 controls the temperature of the fine water particles discharged from the conductive polymer film 112 not to exceed 40°C (preferably less than 40°C, more preferably 25°C or higher and 40°C). ° C.) is controlled. Specifically, the control unit 23 controls the temperature of the fine water particles emitted from the conductive polymer film 112 not to exceed 40°C (preferably less than 40°C, more preferably 25°C to less than 40°C).
- the amount of energization to the substrate 111 is controlled. Therefore, from the conductive polymer film 112, fine water particles that are uncharged, have a size of 50 nm or less, and have a temperature of 40° C. or less (preferably less than 40° C., more preferably 25° C. or more and less than 40° C.) are released. be done.
- the controller 23 may be configured to control the amount of power supplied to the motor of the fan 12 to adjust the flow rate of the air discharged from the discharge port 14out.
- the control unit 23 controls each changeover switch so that the first normally open changeover switch 26 is closed and the second normally open changeover switch 27 is opened.
- the first normally open switch 26 When the first normally open switch 26 is closed, power is supplied from the power supply circuit 22 to the motor of the fan 12, the motor rotates, and the fan 12 rotates in conjunction with the rotation of the motor, thereby opening the suction port of the case 14. Air flows into the flow path 14a from 14 inches. The inflowing air passes through the fine water particle generating element 11 and is then discharged from the discharge port 14out. Further, since the second normally open changeover switch 27 is opened, no power is supplied to the base material 111 of the fine water particle generating element 11 .
- the base material 111 does not generate heat, and heat is not transferred from the base material 111 to the conductive polymer film 112 .
- the conductive polymer film 112 is cooled by air blown by the rotation of the fan 12, the temperature of the conductive polymer film 112 is lowered. As the temperature of the conductive polymer film 112 is lowered in this way, water absorption into the conductive polymer film 112 is promoted. As a result, the moisture in the air passing through the fine water particle generating element 11 is absorbed by the conductive polymer film 112 .
- the operation mode of the fine water particle emitting device 1 is the “water discharge mode”
- a non-charged water having a size of 50 nm or less and a temperature of 40 nm is emitted from the outlet 14 out of the case 14 of the fine water particle emitting unit 10 .
- C. preferably less than 40.degree. C., more preferably 25.degree. C. or more and less than 40.degree. C.
- fine water particles are released together with the air. Therefore, when executing the fine water particle imparting step, the operation mode of the fine water particle emitting device 1 is set to the water discharge mode, and the fine water particle emitting device 1 is driven with the outlet 14out of the case 14 facing the hair.
- the size of a single water molecule is about 0.3 nm
- the size of fine water particles emitted from the fine water particle emitting device 1 is greater than 0.3 nm and 50 nm or less.
- the fine water particle application step can be performed at any timing.
- the step of applying fine water particles can be executed at one or more of the following four timings.
- treatment A A hair care method in which each step is performed in this order.
- the fine water particle application step is executed at the timing of (B) above, for example, as shown in FIG.
- the process is executed.
- a hair care method in which each step is performed in this order is referred to as treatment B.
- the step of applying fine water particles is carried out between the completion of the chemical application step and the start of the cleaning step, and substantially at the same time as the leaving step after applying the chemical (i.e., leaving after applying the chemical). time), or immediately after the execution of the leaving step (that is, immediately after the leaving time has elapsed after applying the medicine).
- the fine water particle imparting process is executed at a timing before the execution of the cleaning process is started.
- each process may be performed in the order of "chemical agent application process ⁇ cleaning process ⁇ fine water particle application process ⁇ drying process". .
- each process is performed in the order of "chemical application process ⁇ cleaning process ⁇ drying process ⁇ fine water particle application process".
- a hair care method in which each step is performed in this order and the fine water particle applying step is performed from immediately after the completion of the drying step to before 6 hours have elapsed is referred to as treatment C.
- FIG. 4A(c) shows the execution order of each step of the process C.
- treatment D a hair care method in which the fine water particle application step is performed after 6 to 30 hours have elapsed after the completion of the drying step.
- FIG. 4A(d) shows the execution order of each step of process D.
- FIG. 4A(e) shows the execution order of each step of the process E.
- the chemical application step may be performed multiple times in a series of processes.
- the cleaning process may be performed after each chemical application process is completed, or may be performed only once after the final chemical application process is completed.
- the fine water particle application process can be performed at the timing shown in (A) or (B) above for any of the chemical application processes.
- each step can be performed in the order shown below.
- the fine water particle application step includes the first drug application step (one drug application step) and the second drug application step (the next drug application step), that is, after the execution of the first drug application step (one drug application step) is completed and before the execution of the second drug application step (subsequent drug application step) is started executed.
- the fine water particle application step is performed after the execution of the second chemical application step is completed.
- the fine water particle application step is performed before the start of the first chemical application step.
- the first drug application step and the second drug application step are continuously executed, so these drug application steps can be regarded as one drug application step.
- the process performed in the order of steps shown in FIG. 4C(g) is the same as process B in FIG. 4A.
- the above example merely exemplifies the order of steps in the case of executing the chemical application step multiple times, and the fine water particle applying step can also be executed in the order of steps other than those exemplified above.
- the drugs used in each drug application process may be different types of drugs or may be the same type of drug.
- the chemical used in one chemical application step may be a perming agent
- the chemical used in another chemical application step may be a bleaching agent.
- the drug application process is executed a plurality of times.
- a drug application step in which the first drug (first drug) is applied and a second drug (second drug) are applied. is executed (second drug application step).
- the same kind of medicine may be used for all of the medicines used in the multiple medicine application steps.
- the chemical components used in each chemical application step may be changed, or the same chemical components may be used.
- the particles are uncharged, the temperature does not exceed 40° C. (preferably less than 40° C., more preferably 25° C. or more and less than 40° C.), and the size is 50 nm or less. of fine water particles are applied to the hair. Since the temperature of the fine water particles applied to the hair is 40° C. or less (preferably less than 40° C., more preferably 25° C. or more and less than 40° C.), the hair is exposed to high temperatures and damaged by performing this step. never. Further, by executing this step, fine water particles with a size of 50 nm or less permeate into the hair.
- the fine water particles applied to the hair are non-charged, they are not attracted by the static electricity of the hair. Therefore, it is possible to prevent fine water particles from sticking to the surface of the hair due to static electricity or the like and impeding the permeation of the fine water particles into the hair.
- moisture can be supplied into the hair, thereby reducing damage to the hair or damaging the hair. can be repaired and the effect of the drug applied in the drug application step can be enhanced.
- the temperature of the fine water particles applied in the fine water particle application step is 40°C or less, preferably less than 40°C. Furthermore, it is preferable that the temperature of the fine water particles applied in the fine water particle applying step is 25° C. or higher.
- the glass transition point of the protein structure of the hair is about 25° C. when fine water particles are applied to the hair and the water content in the hair is increased. This is because if the temperature of the fine water particles is less than 25° C., it is difficult to obtain the effects of reducing hair damage or repairing damaged hair. Therefore, the temperature of the fine water particles applied to the hair and scalp should be 25° C. or higher. Therefore, the most preferable range of the temperature of the fine water particles applied in the fine water particle applying step is 25°C or higher and less than 40°C.
- Example 1 Confirmation of coloring effect in color processing
- Four tresses of hair samples (approximately 50 cm in length and 25 g in weight) were prepared. Color was then applied to the prepared samples.
- a sample B1 a sample C1 colored by the treatment C, and a sample D1 colored by the treatment D were prepared.
- the procedure of each step in each of the treatments A to D is the same, and the outline thereof is as follows.
- Chemical application process Commercially available colorant is evenly brushed onto the sample. Washing step: After 20 minutes have passed since the execution of the chemical application step, the chemical is removed from the sample by rubbing it with fingers while washing the sample with water in a shower.
- Fine water particle application step Using the fine water particle release device 1 shown in FIG. 1, fine water particles (air flow rate: 0.07 m 2 /min.) at a temperature of about 35° C. are applied to the sample for 20 minutes. .
- the chemical application step is executed immediately after the execution of the fine water particle application process is completed
- the fine water particle application process is executed immediately after the execution of the chemical application process is completed
- the fine water particle application step was performed immediately after the drying step was completed
- the fine water particle application step was performed 24 hours (1 day) after the drying step was completed.
- a conventional sample was prepared by preparing a bundle of hair sample and applying color to the sample using conventional processing.
- the conventional treatment is a hair care method in which coloring is performed by sequentially executing a chemical application process, a washing process, and a drying process similar to the procedures described above.
- the conventional treatment is a hair care method that omits the step of applying fine water particles.
- L* in the L * a * b * color system (CIE1976L * a * b * color space) was measured for each of the samples A1, B1, C1, and D1 that had undergone color processing and the conventional sample . values, a * values, b * values were measured. Then, based on each measured value, the color difference between each sample A1, B1, C1, D1 and the conventional sample was quantified as the color difference for each sample.
- the color difference for each sample A1, B1, C1, D1 is L * a * b * between the value measured for each sample A1, B1, C1, D1 and the value measured for the conventional sample. It is a distance in the color space and is calculated by the following formula (1).
- FIG. 5 is a bar graph showing the color difference between the samples A1, B1, C1, and D1, which were colored by each of the treatments A, B, C, and D, and the conventional sample.
- bar graph A1 shows the color difference between sample A1 and the conventional sample
- bar graph B1 shows the color difference between sample B1 and the conventional sample
- bar graph C1 shows the color difference between sample C1 and the conventional sample
- bar graph D1 shows the color difference between the samples.
- the color difference between D1 and the conventional sample is shown.
- the color difference from the conventional sample is 2 or more when color is applied by any of the treatments A to D.
- FIG. it can be seen that the color difference increases in the order of processing A, processing D, processing B, and processing C.
- the hair colored by the treatments A, B, C, and D can be colored better than the hair colored by the conventional treatment. That is, the hair care method according to this embodiment can further enhance the effect of the medicine.
- color development can be further improved by performing color treatment with treatment A or treatment D.
- the fine water particles advance toward the hair while maintaining their size, that is, with a size of 50 nm or less.
- the cuticle that constitutes the surface of hair exhibits a multi-layered structure, and a cell membrane complex (hereinafter referred to as CMC) exists between adjacent cuticles.
- This CMC plays the role of a passageway for water, chemicals, and the like. Therefore, water and chemicals permeate the hair through the CMC.
- the width of this CMC is about 50 nm. Therefore, the fine water particles applied to the hair in the fine water particle application step can permeate into the hair through the CMC while maintaining a size of 50 nm or less without aggregating.
- the fine water particles applied to the hair in the fine water particle application step are not charged, they are not attracted to the static electricity of the hair. Therefore, most of the fine water particles imparted in the fine water particle imparting step enter into the hair and do not remain on the hair surface.
- the fine water particles efficiently penetrate into the hair, thereby reducing damage to the hair or repairing the damaged hair.
- the surface of the hair is not substantially wet. Therefore, the medicine applied to the hair is not diluted by the fine water particles, so that it is possible to effectively prevent the occurrence of the problem of lowering the effectiveness of the medicine due to the dilution of the medicine.
- treatment A fine water particles permeate into the hair before the drug is applied, reducing damage to the hair or repairing the damaged hair, and moisturizing the hair. Therefore, it is considered that the hair can sufficiently absorb the drug in the subsequent application of the drug, thereby improving the color development.
- treatment B the application of fine water particles and the permeation of the chemical agent are performed simultaneously, thereby reducing the damage to the hair or repairing the damaged hair. permeation of the drug is promoted. For this reason, it is thought that the drug sufficiently permeates into the hair, and as a result, the coloring is improved.
- the fine water particle application process is performed during a predetermined time (20 minutes in this example) from the end of the execution of the chemical application process to the start of the cleaning process.
- a standing process permeation/reaction process
- this predetermined time that is, the standing step
- the process B of executing the fine water particle application process within a predetermined time after the execution of the chemical application process that must be set inevitably and before the execution of the cleaning process is started (that is, at the same time as the leaving process) is performed separately.
- this method has the advantage of being able to shorten the overall processing time.
- Example 2 Confirmation of fading suppression effect after color treatment
- Four bundles of hair samples (about 50 cm in length and 25 g in weight) were prepared, and each sample was colored by each of the treatments A, C, and D in the same procedure as in Example 1 and the conventional treatment.
- the sample A2 colored by the process A, the sample C2 colored by the process C, the sample D2 colored by the process D, and the conventional sample colored by the conventional process made respectively.
- the L * value, a * value, and b * value were measured as initial values for each of the prepared samples using a color difference meter. Then, the shampoo/rinse step and the drying step were successively repeated for each sample for which the initial value was measured.
- the shampoo/rinse process is a process in which washing with shampoo, washing with water, application of rinse, and washing with water are performed in this order. In other words, the shampoo/rinse process is a process simulating hair washing at home. In the drying process, each sample was dried using a dryer.
- FIG. 6 is a diagram comparing the color difference S7 and the color difference S14 for each of the samples A2, C2, D2 and the conventional sample, and the vertical axis is the color difference.
- the graph indicated by “A2” shows changes in color differences S7 to S14 for sample A2
- the graph indicated by “C2” shows changes in color differences S7 to S14 for sample C2.
- D2 shows changes in the color differences S7 to S14 for the sample D2
- "conventional” shows changes in the color differences S7 to S14 for the conventional sample.
- the color difference S14 is considerably larger than the color difference S7. That is, when the number of repetitions of the shampoo/rinse process and the drying process is increased from 7 to 14, the color difference increases.
- samples A2, C2, and D2 the color difference S7 and the color difference S14 are not much different. That is, even if the number of repetitions of the shampoo/rinse process and the drying process is increased from 7 to 14, the color difference does not change much.
- the color fades so the magnitude of the change in color difference can be regarded as the magnitude of the degree of color fading.
- Example 3 Confirmation of wave formation effect when applying perm after bleaching
- Prepare 3 bundles of hair samples (length about 50 cm, weight 25 g), bleach each sample using a bleaching agent, and then apply a 2-component perming agent (agent 1 + agent 2). I had a perm done.
- samples A3, B3, and C3 that were permed after bleaching were produced.
- sample A3 was produced by perming by processing B in FIG. 4A after bleaching by processing B in FIG. 4A.
- Sample B3 was produced by bleaching by the process B in FIG. made.
- the outline of the procedure of each step of the bleaching treatment and the perming treatment in the process B of FIG. 4A is as follows.
- the conventional process is performed by omitting the step of applying fine water particles from the steps of the process B in FIG. 4A.
- Chemical (bleaching agent) application process Commercially available bleaching agent is evenly brushed onto the sample.
- Step of applying fine water particles Fine water particles (flow rate: 0.07 m 2 /min.) at a temperature of about 35°C are applied to the sample for 20 minutes using the fine water particle discharge device 1 shown in Fig. 1 .
- Washing step 20 minutes after the end of the chemical agent (bleaching agent) application step, the chemical agent is removed from the sample by rubbing it with fingers while washing the sample with lukewarm water from a shower.
- Drying step After the washing step is completed, water is removed from the surface of the sample by blowing hot air onto the wet sample for about 2 minutes using a dryer.
- Perm treatment Chemical (perming agent) application step After winding (rolling) a hair sample, one agent of a commercially available permanent agent is evenly brushed on the sample, and then left for 15 minutes. The second part is then brushed evenly over the sample. In addition, it is left for 20 minutes after the completion of the execution of the chemical application step.
- Fine water particle application step Immediately after the second agent is applied with a brush (that is, while it is left for 20 minutes), fine water particles at a temperature of about 35 ° C. (flow rate: 0.07 m 2 /min.) is applied to the sample for 20 minutes.
- Washing process After 20 minutes have passed since the completion of the chemical (perm agent) application process (that is, after the fine water particle application process has been completed), the chemical is removed from the sample by rubbing it with fingers while washing the sample with water in a shower. . Drying process: After the washing process is completed, water is removed from the surface of the sample by blowing hot air onto the wet sample for about 2 minutes using a dryer.
- FIG. 7 are photographs of samples A3, B3, and C3, with FIG. 7(a) showing sample A3, FIG. 7(b) showing sample B3, and FIG. 7(c) showing sample C3.
- FIG. 7(c) when the hair is bleached or permed by the conventional treatment, the hair is not sufficiently waved.
- FIG. 7(a) when bleaching and perming are performed by processing B, the hair is appropriately waved. Therefore, by using the treatment B, it is possible to perm the hair after bleaching to form waves.
- sample C3 could not form a wave is considered to be that the hair was greatly damaged by the bleaching treatment and the elasticity of the hair was lost.
- fine water particles having a size of 50 nm or less, a non-charged temperature of 40° C. or less were applied to the sample during bleaching and perming. These fine water particles permeate into the hair without staying on the surface of the sample hair as described above. Then, for example, cuticles are closed by moisture permeated into the hair, and the damaged hair is repaired. Therefore, the hair is less damaged after bleaching and has sufficient elasticity.
- fine water particles are applied to the hair during a perm treatment, thereby reducing damage to the hair. For this reason, it is considered that waves are sufficiently formed in the hair by the perm treatment.
- Example 4 Confirmation of the state of the hair cuticle after bleaching
- Hair was extracted from the samples bleached by treatment B in Example 3 (sample A3 or sample B3 before permanent treatment), and the state of the cuticle on the surface was confirmed by SEM.
- hair was pulled out from the sample (sample C3 before permanent treatment) bleached by the conventional treatment in Example 3, and the state of the cuticle on the surface was confirmed by SEM.
- FIG. 8 is an SEM image (1000 ⁇ ) of two hairs A41 and A42 extracted from a sample bleached by the process B
- FIG. 9 is two hairs N1 extracted from a sample bleached by the conventional process. , N2 (x 1000).
- the cuticles on the surface of hair A41 and A42 bleached by treatment B are closed. In other words, the cuticle is less raised.
- the cuticles on the surface of the hairs N1 and N2 bleached by the conventional treatment are open. In other words, the float of the cuticle is conspicuous. If the cuticle is conspicuous, the hair may be damaged. On the other hand, when the cuticle is less lifted, it is considered that the hair is not damaged. From this, it can be seen that by performing bleaching with the treatment B, the damage to the hair can be reduced or the damaged hair can be repaired.
- the hair care method that does not involve the application of chemicals refers to a method that reduces damage to hair, repairs damaged hair, and enhances luster of hair without using chemicals.
- a treatment agent is generally applied as a chemical to the hair after washing the hair with shampoo or the like. Application of this treatment agent moisturizes the hair and reduces damage to the hair or restores the damaged hair.
- damage to hair can be reduced or damaged hair can be repaired without applying a chemical such as a treatment agent to the hair.
- a hair care method that does not involve the application of chemicals is carried out through at least the following three steps in this embodiment.
- Washing process In the washing process, the hair is washed to remove contaminants such as dirt adhering to the hair. Examples of washing methods include washing the hair and scalp with shampoo and then washing with water. The washing process may be performed only by washing with water.
- Drying Step In the drying step, the hair that has been washed and wet in the washing step is dried. As a drying method, a method of blowing warm air or hot air onto wet hair using a dryer to remove water from the hair is generally used.
- Fine water particle application step In the fine water particle application step, the hair is uncharged, the temperature does not exceed 40 ° C.
- Fine water particles with a diameter of 50 nm or less are applied.
- fine water particles can be applied to the hair using the fine water particle release device 1 shown in the first embodiment.
- FIG. 10 is a diagram showing the execution order of each process required for the process according to this embodiment.
- FIG. 10(a) shows the execution order of each step when the fine water particle applying step is executed after the washing step is finished (more precisely, after the washing step is finished and before the drying step is started).
- FIG. 10(b) shows the execution order of each step when the fine water particle application step is executed after the drying step is completed, and FIG. The execution order of each step when executed is shown.
- the fine water particle imparting step is executed at the same time as the drying step is carried out, and fine water particles are imparted to the hair while drying the wet hair. Shortening can be achieved.
- Example 5 Subjective evaluation of the presence or absence of luster of hair
- Prepare 8 bundles of hair samples (length about 50 cm, weight 25 g), perform a washing step and a drying step for each prepared sample in this order, and then apply fine water particles to the dried sample. carried out.
- the outline of the procedure of each step is as follows. Washing process: A certain amount of commercial shampoo is applied to the sample and then the sample is rubbed with fingers. After that, the sample is rubbed with fingers while being washed with water in a shower to remove contaminants and shampoo chemicals adhering to the sample. Drying process: After the washing process is completed, water on the surface of the sample is removed by blowing hot air onto the wet sample for about 3 minutes using a dryer.
- Fine water particle application step Using the fine water particle release device 1 shown in FIG. 1, fine water particles (flow rate: 0.07 m 2 /min.) at a temperature of about 35° C. are applied to the sample for 20 minutes.
- three beauticians conducted a subjective evaluation on the presence or absence of luster in the hair base and hair tip of each sample before and after the fine water particle imparting step.
- three beauticians evaluated each sample for the presence or absence of gloss before and after the step of applying fine water particles on a five-grade scale of 1, 2, 3, 4, and 5, and gave scores.
- the score is an integer of 1, 2, 3, 4, or 5, and each beautician makes a subjective judgment so that the more glossy, the higher the score, and the less glossy, the lower the score. to assign a score.
- the average value of the scores given by the three beauticians was determined as the score regarding the presence or absence of gloss of the sample.
- FIG. 11 is a graph showing the results of evaluating the presence or absence of gloss in the hair root portion of each sample before and after the step of applying fine water particles
- FIG. 12 shows the presence or absence of gloss in the hair tip portion of each sample.
- the numerical values on the horizontal axis of the graphs of FIGS. 11 and 12 are sample numbers (No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, and No. 8).
- a bar graph (graph A) of the score (average value) regarding the presence or absence of gloss evaluated before the execution of the fine water particle application step is shown on the left, and the end of the fine water particle application step is shown on the left.
- Bar graphs (graph B) of scores (average values) regarding the presence or absence of gloss evaluated later are listed side by side on the right side.
- the bar graphs shown in each figure are drawn so that, with a score of 3 as a reference, the scores higher than 3 extend upward, and the scores lower than 3 extend downward.
- samples with higher scores after the step of applying fine water particles than before the step of applying fine water particles in both the hair root portion and the hair tip portion. is 7 out of 8 samples.
- the effect of improving the luster of the hair was recognized by executing the step of applying fine water particles.
- Example 6 subjective evaluation of hair hardness before and after fine water particle imparting step
- the sample No. used in the above experiment. 1 No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. Regarding No. 8
- three beauticians checked the hardness of the sample before and after the step of applying fine water particles with their fingers.
- Subjective evaluation of the hardness of the samples before and after the fine water particle imparting step was performed in the same five-grade evaluation as above, and the average value was calculated.
- the score is an integer of 1, 2, 3, 4, or 5.
- FIG. 13 is a graph showing the results of evaluating the hardness of each sample before and after the step of applying fine water particles.
- Bar graphs (graph D) of scores (average values) are shown side by side on the right side. Further, the bar graph shown in FIG. 13 is drawn so that, with a score of 3 as a reference, the score is greater than 3 and extends upward, and the score is less than 3 and extends downward.
- Example 7 Change in bending stiffness of hair before and after execution of fine water particle imparting step
- Sample no. of 2 tresses of hair. 9, No. 10 length about 50 cm, weight 25 g
- the washing and drying steps of the same procedure as in Example 5 were performed on the prepared sample.
- the base of each hair was attached to the measuring section of the bending tester.
- sample No. No. 9 was subjected to the fine water particle imparting step of the same procedure as in Example 5.
- sample no. For 10 a water immersion step was performed in which the sample was immersed in water for 1 hour.
- each of the plurality of hairs constituting each sample was again subjected to the same test as above using a bending tester.
- a bending test was performed, and the bending stiffness of the hair base portion was calculated from the test results (bending stress-curvature curve) in the same manner as described above. Then, the values in the range of 10% to 20% with the highest bending stiffness were extracted, and the average value of the extracted values was calculated as the stiffness value immediately after water application.
- each sample was left for 1 day (24 hours) in an atmosphere with a temperature of 24 to 27°C and a humidity of 50 to 65% RH.
- a bending test similar to the above was performed using a bending tester for one hair, and the bending rigidity of the hair base portion was calculated from the test results (bending stress-curvature polarity) in the same manner as described above. Then, the values in the range of 10% to 20% with the highest bending stiffness were extracted, and the average value of the extracted values was calculated as the stiffness value after one day of water application.
- the top 10 with the highest bending stiffness % to 20% is calculated as the value representing the stiffness.
- FIG. 14 is a graph showing changes in the stiffness value before water application, the stiffness value immediately after water application, and the stiffness value one day after water application, calculated for each sample.
- the vertical axis in FIG. 14 represents the rate of change in the bending stiffness value (stiffness value immediately after watering, stiffness value one day after watering) of each sample when the stiffness value before watering is set to 1 for each sample. Therefore, the pre-water stiffness value is 1 for all samples.
- the graph of each sample is indicated by the number of each sample.
- sample No. 9 sample no. 10
- the stiffness value immediately after water application is lower than the stiffness value before water application. This is due to the softening of the hair that constitutes the sample due to the supply of water to the hair.
- sample No. 9 the stiffness value after water application one day is smaller than the stiffness value before water application.
- sample no. 10 the surface of the hair constituting the sample is wet because the sample is immersed in water. For this reason, the stiffness value immediately after water application becomes lower, but the stiffness value one day after water application returns to the same level as the stiffness value before water application. This is probably because all the moisture on the surface of the hair has evaporated one day after the hair was immersed in water.
- Example 8 Comparison of cuticle states
- Three bundles of hair samples A5, B5 and C5 (about 30 cm in length and 15 g in weight) were prepared.
- sample A5 After performing the washing process and drying process in the same order as in Example 5, hair a5 was extracted from sample A5, and the fine water particle imparting process was performed on the extracted hair a5.
- the fine water particle application process was performed for 10 minutes, and then the fine water particle application process was performed for 20 minutes (a total of 30 minutes).
- the surface of the hair a5 was observed by SEM at each timing.
- sample B5 after performing the washing step and the drying step in the same order as in Example 5, hair b5 was extracted from sample B5, and the extracted hair b5 was vaporized using an evaporative humidifier. Moisture was applied for 30 minutes. The surface of the hair b5 was observed by SEM at each timing after the execution of the drying process and before applying the vaporized moisture by the evaporative humidifier and immediately after applying the vaporized moisture for 30 minutes. Furthermore, with respect to sample C5, after performing the washing process and the drying process in the same order as in Example 5, hair c5 was extracted from sample C5, and the extracted hair c5 was subjected to a minus ion dryer using a fine particle ion dryer.
- Fine particle ions containing ions were applied for 10 minutes.
- the surface of the hair c5 was observed with an SEM after the drying step and before application of the fine particle ions by the fine particle ion dryer and immediately after the application of the fine particle ions for 10 minutes. Further, the hair c5 to which the fine particle ions had been applied for 10 minutes was subjected to the fine water particle application step in the same procedure as in Example 5 for 10 minutes. Then, the surface of the hair c5 was observed with an SEM at the timing after the execution of the fine water particle imparting step.
- FIG. 15 is an SEM image (1000x magnification) of hair a5 extracted from sample A5.
- FIG. 15(a) is an SEM image of hair a5 photographed at a timing before starting execution of the fine water particle application process, and FIG. The SEM image of the hair a5 taken immediately after the execution, FIG. 15(c), is taken at the timing immediately after the fine water particle application step was further executed for 20 minutes (total 30 minutes) after the image of FIG. 15(b).
- 10 is an SEM image of the hair a5 that has been cut.
- FIG. 15 after the execution of the fine water particle applying step (FIGS. 15B and 15C) is completed, the cuticle is less lifted than before the execution (FIG. 15A). It's getting less.
- FIG. 16 is an SEM image (1000x magnification) of hair b5 extracted from sample B5.
- FIG. 16(a) is an SEM image of hair b5 taken at the timing before applying vaporized moisture using an evaporative humidifier
- FIG. It is an SEM image of the hair b5 taken at the timing immediately after applying vaporized moisture using a device for 30 minutes.
- the cuticle is greatly lifted both before and after the vaporized moisture is applied.
- the state of the cuticle did not change much.
- the effect of improving the state of the hair cuticle is not observed even if vaporized moisture is applied to the hair using an evaporative humidifier.
- the vaporized moisture applied to the hair by the evaporative humidifier is a single molecule of water (size: about 0.3 nanometers). Since it is present in water), it is considered that it does not contribute to conditioning the tissue in the hair.
- the fine water particles applied to the hair in this embodiment or the fine water particle application step of the first embodiment are Sample No. 1 in FIG. As shown in the graph of No. 9, the effect of applying fine water particles in the step of applying fine water particles is maintained even after one day.
- the fine water particles applied to the hair in the fine water particle applying step of the present embodiment or the first embodiment exist in the state of binding with biological tissue such as protein (bound water) in the hair. It is thought that it functions to arrange the structure of the hair.
- FIG. 17 is an SEM image (1000x magnification) of hair c5 extracted from sample C5.
- FIG. 17(a) is an SEM image of the hair c5 taken at the timing before applying fine particle ions using the fine particle ion dryer
- FIG. 17(b) is the fine particle ion dryer after the shooting of
- FIG. 17(c) is an SEM image of hair c5 photographed at the timing immediately after application of fine particle ions for 10 minutes
- FIG. This is an SEM image of the hair c5 taken at the timing of .
- the cuticle is greatly raised both before and after application of fine particle ions.
- the state of the cuticle does not change so much.
- FIG. 18 is a schematic diagram showing the orientation of cuticles on the hair surface.
- the cuticle is formed on the surface of the hair in a bamboo shoot shape with the tip facing the tip of the hair.
- the cuticle opens toward the tip of the hair. Therefore, by applying fine water particles to the hair in the direction from the root side to the tip side (forward direction), the open cuticles are closed by the fine water particles or the air current carrying the fine water particles, and the cuticles are closed. be arranged.
- fine water particles are effectively generated in the CMC between the cuticles facing the hair tip side. can penetrate.
- fine water particles in order to prepare the cuticle and improve the finish, it is preferable to apply fine water particles in the forward direction. It is preferable to apply fine water particles in the opposite direction.
- the fine water particle imparting step is executed at the timing after the execution of the chemical application step is completed and before the execution of the drying step is started, it is more preferable to perform the timing of the process B of the first embodiment, that is, the chemical application step.
- the fine water particle application step is performed at the timings of the processes C, D, and E of the first embodiment, or at the timings shown in FIGS.
- the particle application step is performed, that is, when the fine water particle application step is performed at the same time as the drying step or after the drying step is completed, it is preferable to apply the fine water particles in the forward direction in order to prepare the cuticle. According to this, fine water particles can be permeated into the hair to reduce damage to the hair or repair the damaged hair, and the cuticles that open toward the fingertip side can be adjusted.
- the application direction of fine water particles is not necessarily limited.
- the sample is towel-dried 3)
- the first drug (used drug: first drug (a mist-like treatment agent that contains nutritional ingredients such as keratin and does not contain silicone ingredients)) is applied to the sample (first drug application step ) 4)
- Second drug (drug used: second drug (liquid treatment agent containing nutritional ingredients such as keratin and containing no silicone component or containing a trace amount of silicone component (low silicone component))) to the sample Application (Second drug application process) 5)
- Application of the third agent (agent used: liquid treatment agent containing nutritional components such as keratin and silicone components) to the sample (third agent application step) 6) Kneading the drug into the sample using the pad of the finger (rubbing process) 7) Rinse the sample with lukewarm water.
- the step of applying fine water particles was performed after step 2) above and before step 3) (that is, before the start of execution of the first drug application step).
- step 3) and before step 4) that is, after the execution of the first chemical agent application step is completed and before the execution of the second chemical agent application step is started
- the fine water particle applying step is performed.
- fine water particles The application step is performed, and for sample D6, after step 6) above and before step 7) (that is, after the third drug application step is completed and before the fourth drug application step is started).
- the fine water particle application step was performed.
- FIG. 21 is a diagram showing the execution order of each step of the treatment, showing the execution timing of the fine water particle application step executed in this example. Timings A6, B6, C6, D6, E6, and F6 shown in FIG. 21 are the timings at which the fine water particle applying step is performed on the samples corresponding to the numbers representing the respective timings.
- Example D6 The tip of the hair feels good in the hand when scooped up.
- Sample E6 The hair when scooped up by hand. The tip fits well in the hand, and it was possible to prevent or suppress the tip of the hair from becoming stiff.
- samples D6 and E6 in which fine water particles were applied after application of a treatment agent containing a silicone component, which felt good on the hands, provided an effect of hydrating the ends of the hair. Good familiarity with This is considered to be due to the difference in the damage of the original hair. If there is little damage to the hair and the hair is in a state where moisture can be retained even without the effect of the chemical (for example, the root of the hair), even if fine water particles are applied before applying the silicone-containing treatment agent, moisture will remain inside the hair. Since it stays, the effect by applying fine water particles can be obtained. On the other hand, in areas where the hair is originally heavily damaged (for example, the tips of the hair), the hair itself lacks the ability to retain moisture.
- fine water particles are applied after applying the treatment agent containing the silicone component, and by using the components contained in the treatment agent, moisture is easily retained in the hair, and the effect of applying the fine water particles is enhanced. can get.
- the bending rigidity reduction rate is the reduction rate of the bending rigidity value G2 after the treatment (after the execution of the finishing process) with respect to the bending rigidity value G1 in the initial state (before the treatment), and is expressed by the following formula 1- G2/G1 can be obtained by The larger the value of the bending stiffness reduction rate obtained from the above equation in the positive direction, the softer the hair after treatment compared to the initial state. It indicates that the hair is stiff.
- 30 hairs were randomly extracted from each sample, and the bending stiffness value G1 in the initial state was first measured for the extracted 30 hairs.
- the top 20% of hair with the highest bending rigidity value G1 was further extracted, and the bending rigidity value G2 after treatment was measured for the extracted hair.
- the bending rigidity reduction rate was obtained using the bending rigidity values G1 and G2 thus obtained.
- the obtained bending stiffness reduction rate is the value for the top 20% of the hair in the bending stiffness value G1 in the initial state.
- the bending stiffness values G1 and G2 were measured by the method described above, and the bending stiffness reduction rate was obtained for each of the hair tip and hair root portions of each sample.
- FIG. 19 is a graph comparing the bending stiffness reduction rates obtained for samples A6, B6, C6, D6, E6 and N6.
- the horizontal axis of this graph indicates the type of sample.
- a graph representing the bending stiffness reduction rate of each sample is shown in the column corresponding to each sample.
- the graph E on the left represents the bending stiffness reduction rate of the hair root portion
- the graph F on the right represents the bending stiffness reduction rate of the hair tip portion.
- the "hysteresis change width" referred to here is the bending stiffness value measured when the hair is bent and the bending stiffness measured when the hair is unbent when measuring the bending stiffness value for each sample. It is an index that represents the amount of change in the magnitude of the difference from the value.
- the hysteresis change width in order to obtain the hysteresis change width, first, for each of the 30 hairs that make up each sample, in the process of bending the hair until the curvature K becomes from 0 to +2.5 (cm ⁇ 1 ).
- the difference was calculated by subtracting the S value before treatment from the S value after treatment, and the amount of change for each of the 30 hairs (S value difference) was calculated. Then, the average value of the amount of change was taken as the width of hysteresis change.
- the larger the hysteresis change width the lower the bending rigidity value when unbending is compared to the bending rigidity value when bending.
- the greater the width of hysteresis change the weaker the force that the hair tries to return when the hair is touched with the hand, and the more comfortable the hand is. This is considered to be a state in which the shape of the hair is likely to change according to the adjustment. Therefore, the magnitude of the hysteresis change width represents the extent to which the hair feels soft when the hair is touched.
- FIG. 20 is a graph comparing hysteresis change widths obtained for samples A6, B6, C6, D6, E6 and N6.
- the horizontal axis of this graph indicates the type of sample.
- a graph representing the hysteresis change width of each sample is shown in the column corresponding to each sample. Further, of the two graphs shown in the column corresponding to each sample, the graph G on the left represents the hysteresis change width of the hair root portion, and the graph H on the right represents the hysteresis change width of the hair tip portion.
- the width of hysteresis change in the hair tip portion is large. From this, it was confirmed that the softness of the hair ends can be further improved by applying fine water particles after applying a treatment agent containing a silicon component. Moreover, in sample C6, the width of hysteresis change in the hair root portion is large. This is because the treatment agent was applied twice before applying the fine water particles, so the condition of the hair base was further improved, and the water was sufficiently absorbed by the subsequent application of the fine water particles. it is conceivable that.
- FIG. 22 is a diagram showing an example of properties of each drug (first drug, second drug, third drug, fourth drug) used in each drug application step.
- the first drug is a mist-like drug
- the second drug is a cream-like drug that does not contain a silicone component or contains a very small amount of silicone component and has a soft texture
- the third agent is a cream-like agent with a relatively high silicone component content and a hard texture
- the fourth agent is a cream-like agent with a high silicone component and oil content and a smooth texture.
- the fine water particle application step can be performed at least one timing.
- the effect of the first chemical can be enhanced, and the second chemical application step can be performed.
- the effect of the second chemical can be enhanced when the fine water particle application step is executed at the timing after the execution (timing C6 in FIG. 21).
- the effect of the third chemical can be enhanced, and the fourth chemical application step can be performed.
- the effect of the fourth chemical can be enhanced when the fine water particle application step is executed at the timing after the completion of the execution.
- the fourth chemical It is possible to enhance the effect of and adjust the feeling of finish.
- FIG. 23 shows the effect on the hair after the treatment, the finished feeling, and the timing of applying the fine water particles at the timings C6, D6, E6, and F6 in FIG. It is a table showing the hair quality suitable for.
- the fine water particle application step is executed at timing C6, the softness of the hair is improved, and the hair can be finished with a light finish.
- the treatment agent containing no silicone component or containing a small amount of silicone component is applied to the hair. In the case of low-damaged hair, the hair is sufficiently repaired at this stage. Therefore, by applying fine water particles to the hair, moisture can be retained in the hair, resulting in a cream with a loose texture.
- the effect of the second drug in the form is enhanced, and as a result, the hair can be softened.
- the fine water particle imparting step is performed at timing D6, the effect of the cream-like third agent having a hard texture is enhanced, so that the stiffness of the hair, especially at the base of the hair, is strengthened and lightened. You can finish your hair with a sense of finish. Therefore, it is preferable to apply the fine water particles at the timing D6 to the hair having no elasticity.
- Timing E6 or timing F6 is the timing after all the chemicals have been applied, so even if the hair is of a highly damaged type, the hair is sufficiently repaired and protected when fine water particles are applied. . Therefore, it is preferable to apply fine water particles at timing E6 or timing F6 to highly damaged hair. Further, by applying fine water particles to the dried hair at the timing E6, the entire hair can be puffed up and finished with a fluffy and soft texture. In addition, by applying fine water particles to the hair after finishing at timing F6, that is, by allowing water to be contained in the hair at the end of the treatment, the hair is heavy and has a moist texture. can be finished.
- FIG. 24 is a diagram showing the relationship between the hysteresis change width and the bending rigidity reduction rate measured for each of samples C6, D6, F6, and N6.
- the horizontal axis of FIG. 24 represents the width of hysteresis change. It indicates that it is easy to bend back (that is, the ease of familiarity with the hand is small (difficult to fit)).
- the vertical axis in FIG. 24 represents the bending stiffness reduction rate, and the more the rate increases from 0 in the positive direction, the more easily the hair bends, and the more the rate increases from 0 in the negative direction, the less the hair bends.
- sample N6 in which the fine water particle imparting step was not performed, it was found that the hair tip portion was difficult to bend and the hair base portion was easy to bend. Moreover, in sample C6, it can be seen that the base portion of the hair is difficult to bend back (easily adaptable). In general, hair that easily bends and hair that is difficult to bend back (easily adaptable) can be said to be soft hair. Therefore, by executing the fine water particle imparting step at a timing after the execution of the second chemical agent application step is completed and before the execution of the third chemical agent application step is started, the hair can be finished soft. In addition, it can be seen that sample D6 has hair that is difficult to bend at both the tip portion and the hair root portion.
- the hair root portion of sample D6 is difficult to bend and easy to bend back. Hair that is difficult to bend and that is easy to bend back when bent can be said to be firm hair. Therefore, by executing the fine water particle imparting step at a timing after the execution of the third chemical application step is completed and before the execution of the fourth chemical application step is started, it is possible to finish the hair with strong elasticity at the hair base. can. Further, in sample F6, the tip portion of the hair is difficult to bend back. Therefore, by performing the fine water particle applying step at the timing F6 after the completion of the finishing step, the hair can be finished with a soft tip portion. In addition, by applying fine water particles to the hair after the completion of the finishing process, the hair is moisturized, and the hair can be finished to be heavy and smooth.
- treatment treatment depending on the condition of the hair (low damage, high damage, elasticity, etc.) and the desired finish (light, heavy, fluffy, calm, etc.), multiple chemicals are used.
- Appropriate treatment can be performed by executing the fine water particle imparting step at least at one of the following timings: after execution of any one of the coating steps, after drying, and after finishing.
- the effect of the treatment agent can be further enhanced.
- the first drug is a drug that has the function of severing the internal tissue of the hair, specifically the cystine bonds in the hair, to freely change the shape of the hair.
- the second chemical is a chemical that has the function of reuniting the internal tissue of the hair that has been cut by the application of the first chemical, making the hair conform to the desired shape, and hardening the hair into the desired shape. Therefore, in perm treatment, the first chemical is first applied to the hair, and then the second chemical is applied to the hair.
- FIG. 25A shows each step of conventional perm treatment using two liquids (first drug and second drug).
- the rod winding process (winding process), the first chemical application process, the first standing process, the washing process (first washing process), the second chemical A coating process, a second standing process, a cleaning process (second cleaning process), and a drying process are executed in this order.
- the rod winding process the hair is wound with a rod to bend the hair into a desired winding shape.
- the first chemical is applied to the hair in the first chemical application step, and then the hair is left alone for a first predetermined time in the first leaving step.
- the first chemical permeates into the hair, the internal tissue inside the hair is cut, and the shape of the hair can be freely changed.
- the hair is washed in the washing step (first washing step)
- the second chemical is applied to the hair in the second chemical application step, and then the hair is washed in the second leaving step. It is left for a second predetermined time.
- the second chemical penetrates into the hair, the cut internal tissues in the hair are recombined, and the hair conforms to the desired shape and hardens into the familiar shape.
- the first predetermined time in the first standing step and the second predetermined time in the second standing step are generally about 15 minutes each. After the second standing step is completed, the hair is washed in the washing step (second washing step) and then dried in the drying step.
- FIG. 25B shows an example of the execution order of each process of perm treatment using two liquids (first drug and second drug) according to this embodiment.
- the second drug application process is performed after the first standing process shown in FIG. 25A is completed.
- the washing step first washing step
- the fine water particle application step is performed.
- the order of steps is the same as the order of steps shown in FIG. 25A.
- fine water particles are formed on the hair that is wet with the first chemical applied by executing the first chemical application step or on the hair that is wet by executing the washing step after the first chemical application step. Granted.
- the applied fine water particles penetrate into the hair and adhere to the internal tissue of the hair cut by the first chemical.
- the tissue becomes mobile.
- the shape of the hair can easily conform to the intended winding shape. Therefore, the time required for the hair to conform to the desired winding shape after application of the second chemical can be shortened. Thereby, the second predetermined time in the second standing step can be shortened. For example, as shown in FIG.
- the first predetermined time in the first standing step is about 15 minutes
- the second predetermined time in the second standing step can be shortened to about 5 minutes.
- the time for applying fine water particles in the fine water particle applying step is 10 minutes, compared to the perm treatment shown in FIG. Perm treatment can be performed.
- the effect of the perming agent can be enhanced.
- shortening the time (second predetermined time) during which the hair is exposed to the second chemical it is possible to reduce the degree of damage caused to the hair by the second chemical.
- Example 11 Wave efficiency comparison
- Four bundles of hair samples (approximately 50 cm in length and 25 g in weight) A7, B7, C7 and N7 were prepared, and each sample was permed using two liquids (first chemical and second chemical).
- first chemical has the function of cutting the internal tissue of the hair
- second chemical has the function of binding the internal tissue of the hair cut by the first chemical.
- sample A7 was permed by processing F1
- sample B7 was permed by processing F2
- sample C7 was permed by processing F3
- sample N7 was permed by conventional processing.
- FIG. 26 is a diagram showing each step of conventional processing, processing F1, processing F2, and processing F3.
- the conventional process includes a rod winding process, a first chemical application process, a first standing process, a first washing process, a second chemical application process, a second standing process, a second washing process, and a drying process. , are executed in this order.
- the conventional treatment does not include the step of applying fine water particles.
- Treatment F1 includes a rod winding process, a first chemical application process, a first standing process + fine water particle application process, a first washing process, a second chemical application process, a second standing process, a second washing process, and a drying process. These processes are executed in this order.
- the fine water particle imparting process is performed while the first standing process is being performed.
- the execution time of the first standing step is 15 minutes, and the fine water particle application step is performed simultaneously with the first standing step until 10 minutes have passed since the start of execution of the first standing step. be. Therefore, only the first standing step is performed for 5 minutes after the completion of the fine water particle application step.
- the process F2 includes a rod winding process, a first chemical application process, a first standing process, a first washing process, a second chemical application process, a second standing process + fine water particle application process, a second washing process, and a drying process. The processing is performed in this order. According to the process F2, the fine water particle imparting process is performed during the execution of the second standing process.
- the execution time of the second standing step is 15 minutes, and the fine water particle application step is performed simultaneously with the second standing step until 10 minutes have elapsed from the start of execution of the second standing step. be. Therefore, only the second standing step is performed for 5 minutes after the completion of the fine water particle application step.
- the process F3 includes a rod winding process, a first chemical application process, a first standing process, a first washing process, a fine water particle application process, a second chemical application process, a second standing process, a second washing process, and a drying process. The processing is performed in this order. According to the process F3, the fine water particle applying process is performed after the first cleaning process is completed and before the second chemical application process is started.
- a rod is wound around the hair sample to bend the hair into a predetermined winding shape.
- the first chemical is evenly applied to the rod-wound sample.
- the sample coated with the first chemical is left for 15 minutes.
- the first washing step the first chemical is washed away from the sample by washing with water in a shower while rubbing the sample with fingers.
- the second chemical application step the sample is evenly coated with the second chemical.
- the sample coated with the second chemical is left for a predetermined time (second predetermined time).
- the second predetermined time in the second leaving step is 15 minutes for the conventional process, process F1, and process F2, and 5 minutes for process F3.
- the second washing step the second chemical is washed away from the sample by rinsing with water in a shower while rubbing the sample with fingers.
- a dryer is used to blow hot air onto the wet sample for about 2 minutes to remove water from the surface of the sample.
- fine water particle application step fine water particles (flow rate: 0.07 m 2 /min.) at a temperature of about 35°C are applied to the sample for 10 minutes using the fine water particle release device 1 shown in Fig. 1 . After completing the drying process, the rod is removed from the sample.
- FIG. 27 is a diagram comparing the wave efficiencies of samples A7, B7, C7, and N7 for which perm treatments were performed by each process.
- the wave efficiency is the percentage of the value obtained by dividing the diameter of the rod used in the rod winding process by the diameter of the wave formed on the sample after the treatment. Show big.
- the wave efficiencies of samples A7, B7, and C7 subjected to processing F1, processing F2, and processing F3 are higher than the wave efficiency of sample N7 subjected to conventional processing.
- the reason for the high waving efficiency of samples A7, B7, and C7 can be considered to be that the effect of the perming agent was enhanced by reducing damage to the hair by applying fine water particles to the hair. .
- sample C7 has the highest wave efficiency.
- the reason why the wave efficiency of sample C7 is the highest is that the second predetermined time in the second standing step of treatment F3 is the shortest at 5 minutes, and the damage to the hair due to exposure to the second chemical is the least. This is probably because the effect of the agent was enhanced.
- the perming treatment by the process F3 and shortening the second predetermined time (leaving time) in the second leaving step it is possible to perform the perming treatment with sufficiently high wave efficiency while suppressing damage to the hair. Furthermore, it is possible to shorten the perm treatment time including the step of applying fine water particles.
- the reason why the standing time (second predetermined time) in the second standing step in the process F3 can be shortened is that, as described above, a minute amount of time is required after the application of the first chemical and before the application of the second chemical. This is probably because the application of the water particles to the sample facilitated movement of the cut internal tissue in the hair, making it easier for the hair to conform to the desired shape. Also in the treatment F1, as in the treatment F3, fine water particles are applied to the sample after the application of the first chemical and before the application of the second chemical.
- the difference between the process F1 and the process F3 is that in the process F1, the fine water particle imparting process is performed at the same time as the first standing process after applying the first chemical, whereas in the process F3, the execution of the first standing process is completed.
- the step of applying fine water particles is carried out later.
- the fine water particles are used to efficiently penetrate the first chemical into the hair, so that the internal tissue inside the hair is easily moved. It is considered that the contribution of fine water particles to the effect of Therefore, it is considered that the second idle time cannot be sufficiently shortened in the process F1.
- the fine water particles are applied after the execution of the first leaving step is completed, the fine water particles are applied after the first chemical permeates the hair due to the execution of the first standing step. Many of the particles are used to mobilize internal tissue within the hair that has been cut by the first agent. Therefore, according to the process F3, the application of the fine water particles makes the internal tissue of the hair sufficiently mobile, thereby sufficiently shortening the standing time after applying the second chemical (execution time of the second standing step). is considered possible.
- Example 11 an example was shown in which the first cleaning process was performed after the execution of the first standing process was completed, but the first cleaning process may be omitted.
- the fine water particle application step is performed after the execution of the first leaving step is completed and before the execution of the second chemical application step is started.
- the fine water particle applying step may be executed at the timing before the execution of the first chemical agent application step is started. good. According to this, fine water particles that have already permeated into the hair during the execution of the first chemical application step promote the penetration of the first chemical into the hair, thereby promoting the cutting of the internal tissue of the hair. Therefore, the standing time (first predetermined time) in the first standing step can be shortened. In addition, by shortening the time the hair is exposed to the first chemical, damage to the hair can be further reduced.
- FIG. 28 is a diagram showing each step of bleaching treatment according to this embodiment.
- the bleaching treatment according to this embodiment is performed by executing a chemical (bleaching agent) application step, a standing step, a washing step, a fine water particle applying step, and a drying step in this order.
- the fine water particle imparting step is performed after the washing step is completed and before the drying step is started. For this reason, fine water particles are applied to the hair that is wet due to the execution of the washing process. By applying fine water particles to wet hair, it is possible to reduce the peculiarity of the hair after bleaching.
- Example 12 Confirmation of the effect of reducing hair peculiarities after bleaching
- Three bundles of hair samples (length: about 50 cm, weight: 25 g) A8, B8, and C8 collected from the same person were prepared, and each sample was bleached using a commercially available bleaching agent.
- bleaching treatment was carried out by processing according to the order of steps shown in FIG. 28 (hereinafter referred to as processing of this embodiment).
- sample B8 was subjected to bleaching treatment according to the process order shown in FIG. 29A (hereinafter, first comparison process), and sample C8 was processed according to the process order shown in FIG. treatment), bleaching was performed.
- 29A is a process in which a first fine water particle application process, a chemical (bleaching agent) application process, a standing process, a washing process, a drying process, and a second fine water particle application process are executed in this order.
- the second comparison process shown in FIG. 29B is a process in which a chemical (bleaching agent) application process, a standing process, a washing process, a drying process, and a fine water particle applying process are executed in this order.
- the first comparative treatment, and the second comparative treatment a commercially available bleaching agent was evenly brushed onto the sample in the chemical application step.
- fine water particle imparting step, the first fine water particle imparting step, and the second fine water particle imparting step fine water particles at a temperature of about 35° C. (flow rate: 0.5° C.) are applied using the fine water particle emitting device 1 shown in FIG. 07 m 2 /min.) was applied to the sample.
- the time for imparting fine water particles to the sample was 10 minutes
- the time for applying the fine water particles to the sample is 5 minutes each.
- the hair was left for 20 minutes after applying the chemical (bleaching agent).
- the washing step after the standing step was completed, the sample was washed by showering with lukewarm water while rubbing the sample with fingers to remove the drug from the sample.
- water on the surface of the sample was removed by blowing hot air onto the wet sample for about 2 minutes using a dryer.
- FIG. 30 is a photograph of samples A8, B8, and C8 subjected to bleaching by each treatment (this embodiment treatment, first comparison treatment, and second comparison treatment).
- this embodiment treatment first comparison treatment, and second comparison treatment.
- the sample on the left side is sample B8 subjected to bleaching by the first comparative treatment
- the sample on the right side is sample C8 subjected to bleaching treatment by the second comparative treatment
- the sample in the center is the present sample.
- This is sample A8 subjected to bleaching by the example treatment.
- sample A8 subjected to bleaching by the treatment of this embodiment has straighter hair than other samples B8 and C8. Since these samples A8, B8, and C8 were taken from the same person, only sample A8 has unruly hair.
- Curly hair straightening, digital perms, and set treatments include a heat treatment process. By applying heat to the hair in this heat treatment step, the hair can be shaped into a desired shape. Moreover, when the heat treatment process is performed, the moisture in the hair is taken away, so the hair tends to become dry and hard.
- FIG. 31 is a diagram showing an example of treatment involving heat treatment.
- FIG. 31(a) shows each step of curly hair straightening treatment
- FIG. 31(b) shows each step of digital perm treatment
- FIG. 31(c) shows each step of set treatment.
- the ironing process in FIGS. 31(a) and 31(c) is the heat treatment process
- the heating process in FIG. 31(b) is the heat treatment process.
- the fine water particle imparting step is performed before the heat treatment step.
- a particle application step is performed.
- a fine water particle imparting process is performed in the digital perm treatment shown in FIG. 31(b).
- the setting process shown in FIG. 31(c) is executed after the drying process is completed and before the ironing process (heat treatment process) is started (timing c in FIG. 31(c)).
- the fine water particle application process By executing the fine water particle application process before starting the heat treatment process, moisture is supplied into the hair before the heat treatment.
- the moisture supplied into the hair in the fine water particle imparting step is present in the hair in a state of being bound to biological tissues such as proteins, that is, as bound water. .
- biological tissues such as proteins
- the hair is not dried. Therefore, it is possible to obtain the effect of softening the hair by sufficiently containing water in the hair at the time of finishing.
- replenishing moisture in the hair before the heat treatment process facilitates movement of the tissue structure in the hair. Therefore, the shape of the hair can be easily adjusted in the subsequent heat treatment process.
- the fine water particle imparting step may be performed after the heat treatment step is completed. That is, the fine water particle application step may include a first fine water particle application step that is performed before starting the heat treatment step and a second fine water particle application step that is performed after the heat treatment step is completed.
- the curly hair straightening treatment in this example includes a shampoo step, a towel drying step, a first agent (first agent) application step, a first standing step, an intermediate water washing step (washing step), and a drying step.
- fine water particle application step, ironing step (heat treatment step), second agent (second agent) application step, second standing step, water washing step (washing step), treatment agent application step, finishing step in this order. This is done by executing According to this order of steps, the fine water particle applying step is performed after the drying step is completed and before the ironing step (heat treatment step) is started.
- the curly hair straightening agent has a first drug (first drug) and a second drug (second drug).
- the first drug has the function of cutting the bonds of the internal tissue of the hair to make the hair more mobile. Therefore, by applying the first chemical to the hair and allowing the first chemical to permeate the hair, the shape of the hair can be straightened, for example.
- the second drug has the function of reuniting the internal tissue of the hair cut by the first drug. Therefore, by applying the second chemical and allowing the second chemical to permeate the hair, the cut internal tissue is bound and the hair is fixed in the corrected shape.
- samples B9, C9, and D9 were prepared by performing curly hair straightening treatment by executing each step shown in FIG.
- the fine water particle application step is performed after the ironing step (heat treatment step) is completed and before the second chemical application step is started.
- the step of applying fine water particles was performed simultaneously with the step of applying the first chemical
- the step of applying fine water particles was performed simultaneously with the step of applying the second chemical.
- a sample N9 was prepared by performing a curly hair straightening treatment by omitting the step of applying fine water particles from the steps of FIG. 32 .
- the bending stiffness reduction rate of the hair base portion and the bending stiffness reduction rate of the hair tip portion were calculated.
- the calculation method of this bending rigidity reduction rate is the same as the calculation method in the tenth embodiment, so the explanation thereof will be omitted.
- Fig. 33 is a graph comparing the bending rigidity reduction rate obtained for each sample.
- the horizontal axis of this graph indicates the types of samples (A9, B9, C9, D9, N9), and the column corresponding to each sample indicates a graph representing the bending rigidity reduction rate.
- graph I on the left represents the bending stiffness reduction rate of the hair root portion
- graph J on the right represents the bending stiffness reduction rate of the hair tip portion.
- both the flexural rigidity reduction rate of the hair base portion and the flexural rigidity reduction rate of the hair tip portion are large.
- the fine water particle imparting step was performed before the ironing step (heat treatment step) was started. Therefore, it was confirmed that by performing the fine water particle imparting step before starting the heat treatment step, the bending stiffness value of the hair is reduced and the hair is softened, thereby making it easier to style the hair.
- Example 13 an example was described in which the fine water particle application step was performed before the ironing step to soften the hair and make it easier to style. It may be executed at another timing after the execution of the process is completed and before the execution of the second chemical application process is started.
- the fine water particle imparting step between the first chemical application step and the second chemical application step it is possible to obtain the effect of making it easier to change the shape of the hair into a desired shape.
- the step of applying fine water particles can be performed, for example, after the step of applying the second agent is completed.
- the effect of softening the hair and the effect of relieving the distortion of the tissue that occurs when the shape of the hair is fixed are exhibited. It is thought that Therefore, by executing such a fine water particle imparting step after completing the execution of the second chemical application step, the hair becomes softer and the texture of the hair after the finishing step can be improved.
- fine water particles may be applied to the scalp, which is the target part of the head.
- the scalping process can be performed by the process A or the process B of the first embodiment. According to this, the fine water particles permeate the scalp, so that the irritation caused by the chemical solution can be alleviated and the condition of the hair can be adjusted.
- the processes A, B, C, and D in FIG. 4A are mainly described, but as in the process E in FIG. Even if the steps are executed, substantially the same effect as the processing C can be obtained.
- the fine water particle imparting step is executed after the execution of the drying step.
- a similar effect can be obtained by executing the fine water particle imparting step simultaneously with the execution of the steps.
- the hair care method that does not involve the application of chemicals has been described. According to this, the hair can be further moisturized and the hair can be treated more smoothly. In this manner, the present invention can be modified without departing from its gist.
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Abstract
Description
特許文献1に記載のように頭髪に蒸気を付与すると、頭髪が高温に晒されてダメージを受ける。また、特許文献1によれば凝縮水は除去されるものの、頭髪に付着した蒸気は頭髪表面で結露する。こうして生じた結露水は頭髪表面で成長して大きな水滴となり、頭髪内に浸透していかずに頭髪表面に留まる。頭髪表面に水滴が留まった場合、頭髪内に水分が十分に供給されないため、頭髪のダメージを水分補給により補うこともできない。さらに、薬剤を頭髪に塗布した場合には頭髪表面に留まった水滴が薬剤に混ざって薬剤が希釈される。このため薬剤による効果が低下する虞がある。
第一実施形態では、薬剤の塗布を伴う頭髪のケア方法、すなわち薬剤塗布工程を含む頭髪のケア方法について説明する。
(1)薬剤塗布工程
薬剤塗布工程では、頭髪に薬剤が塗布される。例えば、カラーを施術する場合、頭髪にカラー剤が塗布され、トリートメントを施術する場合、頭髪にトリートメント剤が塗布され、パーマを施術する場合、頭髪にパーマ剤が塗布され、ブリーチを施術する場合、頭髪にブリーチ剤が塗布される。塗布方法は、一般的には刷毛塗りであるが、スプレーにより塗布しても良い。
(2)洗浄工程
洗浄工程では、頭髪に塗布した薬剤を除去するために、頭髪が洗浄される。この洗浄は一般的には水洗であるが、薬剤塗布工程にて塗布した薬剤を洗浄するための薬剤(洗浄用薬剤)を用いても良い。この場合、洗浄用薬剤は、水洗いの前に頭髪に塗布しても良いし、洗浄用薬剤を水に混ぜた状態で頭髪を洗浄しても良い。洗浄方法は、一般的にはシャワーによる水洗いを含む。従って、洗浄工程の実行が終了した頭髪は、濡れている。
(3)乾燥工程
乾燥工程では、洗浄工程にて洗浄して濡れている頭髪を乾燥させる。乾燥方法として、ドライヤーを用いて温風或いは熱風を濡れた頭髪に吹き付けて頭髪から水分を吹き飛ばし或いは蒸発させることによって水分を除去する方法が、一般的である。
(4)微細水粒子付与工程
微細水粒子付与工程では、頭髪に微細水粒子を付与する。この微細水粒子付与工程については後述する。
(A)薬剤塗布工程の実行開始前(前処理工程を実行する場合は、前処理工程の実行開始前または前処理工程の実行終了後であって薬剤塗布工程の実行開始前)
(B)薬剤塗布工程の実行終了後(例えば、薬剤塗布工程の実行終了後であって洗浄工程の実行開始前、洗浄工程の実行終了後であって乾燥工程の実行開始前)
(C)乾燥工程の実行終了後
(D)乾燥工程の実行と同時
・第一薬剤塗布工程→微細水粒子付与工程→洗浄工程→第二薬剤塗布工程→洗浄工程→乾燥工程(図4B(a)参照)
・第一薬剤塗布工程→洗浄工程→第二薬剤塗布工程→微細水粒子付与工程→洗浄工程→乾燥工程(図4B(b)参照)
・第一薬剤塗布工程→洗浄工程→微細水粒子付与工程→第二薬剤塗布工程→洗浄工程→乾燥工程(図4B(c)参照)
・微細水粒子付与工程→第一薬剤塗布工程→洗浄工程→第二薬剤塗布工程→洗浄工程→乾燥工程(図4B(d)参照)
・第一薬剤塗布工程→微細水粒子付与工程→第二薬剤塗布工程→洗浄工程→乾燥工程(図4C(e)参照)
・第一薬剤塗布工程→第二薬剤塗布工程→微細水粒子付与工程→洗浄工程→乾燥工程(図4C(f)参照)
・微細水粒子付与工程→第一薬剤塗布工程→第二薬剤塗布工程→洗浄工程→乾燥工程(図4C(g)参照)
4束の頭髪のサンプル(長さ約50cm、重量25g)を準備した。次いで、準備したサンプルにカラーを施術した。このとき、図4Aの処理A、処理B,処理C、処理Dのそれぞれの処理を、別々のサンプルに施すことにより、処理Aによりカラーが施術されたサンプルA1、処理Bによりカラーが施術されたサンプルB1、処理Cによりカラーが施術されたサンプルC1、処理Dによりカラーが施術されたサンプルD1を、それぞれ作製した。なお、各処理A~Dにおける各工程の手順は同一であり、その概略は以下の通りである。
薬剤塗布工程:市販のカラー剤がサンプルにまんべんなく刷毛塗りされる。
洗浄工程:薬剤塗布工程の実行終了から20分経過後、シャワーによりサンプルを水洗いしながら手指で擦ることによってサンプルから薬剤が除去される。その後、シャンプーを用いて1分間洗浄が実行され、次いで、水を用いて1分間のすすぎが実行され、次いで、リンスがサンプルに1分間塗布され、最後に水を用いて1分間のすすぎが実行される。
乾燥工程:洗浄工程の実行終了後、10秒間のタオルドライが施された後、ドライヤーを用いて温風を濡れたサンプルに約3分間吹き付けることにより、サンプル表面から水分が除去される。
微細水粒子付与工程:図1に示す微細水粒子放出装置1を用いて、温度約35℃の微細水粒子(空気流量:0.07m2/min.)が、20分間、サンプルに付与される。
色差=√(ΔL2+Δa2+Δb2) (1)
ここで、
ΔL=L-L0、Δa=a-a0、Δb=b-b0
L:サンプルA1,B1,C1,D1のL*値
L0:従来サンプルのL*値
a:サンプルA1,B1,C1,D1のa*値
a0:従来サンプルのa*値
b:サンプルA1,B1,C1,D1のb*値
b0:従来サンプルのb*値
4束の頭髪のサンプル(長さ約50cm、重量25g)を準備し、各サンプルについて、実施例1と同様の手順の各処理A,C,D及び従来処理によりカラーをそれぞれ施術した。これにより、処理Aによりカラーが施術されたサンプルA2、処理Cによりカラーが施術されたサンプルC2、処理Dによりカラーが施術されたサンプルD2、及び、従来処理によりカラーが施術された従来サンプルを、それぞれ作製した。
ΔL=L-L0、Δa=a-a0、Δb=b-b0
L:各サンプルのL*値の7回値または14回値
L0:各サンプルのL*値の初回値
a:各サンプルのa*値の7回値または14回値
a0:各サンプルのa*値の初回値
b:各サンプルのb*値の7回値または14回値
b0:各サンプルのb*値の初回値
である。
図6は、各サンプルA2,C2,D2、及び従来サンプルについての色差S7と色差S14とを比較した図であり、縦軸が色差である。また、図6中、「A2」で示されるグラフは、サンプルA2についての色差S7から色差S14の変化を、「C2」で示されるグラフがサンプルC2についての色差S7から色差S14の変化を、「D2」で示されるグラフがサンプルD2についての色差S7から色差S14の変化を、「従来」で示されるグラフが従来サンプルについての色差S7から色差S14の変化を、それぞれ示す。
3束の頭髪のサンプル(長さ約50cm、重量25g)を準備し、各サンプルについて、ブリーチ剤を用いてブリーチを施術し、その後、2液用のパーマ剤(1剤+2剤)を用いてパーマを施術した。これにより、ブリーチ後にパーマを施術したサンプルA3,B3,C3を作製した、ここで、サンプルA3は、図4Aの処理Bによりブリーチを施術後、図4Aの処理Bによりパーマを施術することにより作製し、サンプルB3は、図4Aの処理Bによりブリーチを施術後、従来処理によりパーマを施術することにより作製し、サンプルC3は、従来処理によりブリーチを施術後、従来処理によりパーマを施術することにより作製した。また、本例において、図4Aの処理Bにおけるブリーチの施術及びパーマの施術の各工程の手順の概略は、以下の通りである。また、従来処理は、図4Aの処理Bにおける各工程の手順から微細水粒子付与工程を省略した手順で行われる。
・ブリーチの施術
薬剤(ブリーチ剤)塗布工程:市販のブリーチ剤がサンプルにまんべんなく刷毛塗りされる。
微細水粒子付与工程:図1に示す微細水粒子放出装置1を用いて、温度約35℃の微細水粒子(流量:0.07m2/min.)が、20分間、サンプルに付与される。
洗浄工程:薬剤(ブリーチ剤)塗布工程の実行終了から20分経過後、シャワーによるぬるま湯を用いてサンプルを洗いながら手指で擦ることによってサンプルから薬剤が除去される。
乾燥工程:洗浄工程の実行終了後、ドライヤーを用いて温風を濡れたサンプルに約2分間吹き付けることにより、サンプル表面から水分が除去される。
・パーマの施術
薬剤(パーマ剤)塗布工程:頭髪のサンプルをワインディング(ロッド巻き)した後、市販のパーマ剤の1剤がサンプルにまんべんなく刷毛塗りされ、その後15分間放置される。その後、2剤がサンプルにまんべんなく刷毛塗りされる。なお、薬剤塗布工程の実行終了後、20分間放置される。
微細水粒子付与工程:2剤の刷毛塗りの直後に(すなわち20分間の放置の間に)、図1に示す微細水粒子放出装置1を用いて、温度約35℃の微細水粒子(流量:0.07m2/min.)が、20分間、サンプルに付与される。
洗浄工程:薬剤(パーマ剤)塗布工程の実行終了から20分経過後(すなわち微細水粒子付与工程の実行終了後)、シャワーによりサンプルを水洗いしながら手指で擦ることによりサンプルから薬剤が除去される。
乾燥工程:洗浄工程の実行終了後、ドライヤーを用いて温風を濡れたサンプルに約2分間分吹き付けることにより、サンプル表面から水分が除去される。
実施例3にて処理Bによりブリーチを施術したサンプル(パーマ施術前のサンプルA3またはサンプルB3)から頭髪を抜き出し、SEMにより表面のキューティクルの状態を確認した。また、実施例3にて従来処理によりブリーチを施術したサンプル(パーマ施術前のサンプルC3)から頭髪を抜き出し、SEMにより表面のキューティクルの状態を確認した。
第二実施形態では、薬剤の塗布を伴わない頭髪のケア方法、すなわち薬剤塗布工程を含まない頭髪のケア方法について説明する。ここで、薬剤の塗布を伴わない頭髪のケア方法とは、薬剤を用いることなしに、頭髪のダメージを軽減或いはダメージを受けた頭髪を修復し、また頭髪のツヤを高める方法を言う。なお、従来において、頭髪のダメージを軽減或いはダメージを受けた頭髪を修復するために、一般的には、シャンプー等によって頭髪を洗浄した後に頭髪に薬剤としてトリートメント剤が塗布される。このトリートメント剤の塗布により頭髪が保湿されるとともに頭髪のダメージが軽減或いはダメージを受けた頭髪が修復される。これに対して本実施形態では、トリートメント剤等の薬剤を頭髪に塗布することなく、頭髪のダメージが軽減或いはダメージを受けた頭髪が修復され得る。
(1)洗浄工程
洗浄工程では、頭髪に付着している汚れ等の汚染物を除去するために、頭髪が洗浄される。洗浄方法として、例えば、シャンプーによる頭髪頭皮の洗浄およびその後の水洗を例示できる。洗浄工程は、水洗のみにより実行されていても良い。
(2)乾燥工程
乾燥工程では、洗浄工程にて洗浄して濡れている頭髪を乾燥させる。乾燥方法として、ドライヤーを用いて温風或いは熱風を濡れた頭髪に吹き付けることにより頭髪から水分を除去させる方法が、一般的である。
(3)微細水粒子付与工程
微細水粒子付与工程では、頭髪に、無帯電であり、温度40℃を超えず(好ましくは40℃未満、より好ましくは25℃以上40℃未満)、且つ大きさが50nm以下の微細水粒子が付与される。この場合、第一実施形態で示した微細水粒子放出装置1を用いて頭髪に微細水粒子を付与することができる。
8束の頭髪のサンプル(長さ約50cm、重量25g)を準備し、準備した各サンプルについて、洗浄工程、乾燥工程をこの順で実行し、その後、乾燥したサンプルに対して微細水粒子付与工程を実施した。各工程の手順の概略は、以下の通りである。
洗浄工程:一定量の市販のシャンプーがサンプルに塗布され、次いで手指でサンプルが擦られる。その後、シャワーにより水洗いしながら手指でサンプルを擦ることによりサンプルに付着した汚染物及びシャンプーの薬液が除去される。
乾燥工程:洗浄工程の実行終了後、ドライヤーを用いて温風を濡れたサンプルに約3分間吹き付けることにより、サンプル表面の水分が除去される。
微細水粒子付与工程;図1に示す微細水粒子放出装置1を用いて、温度約35℃の微細水粒子(流量:0.07m2/min.)が、20分間、サンプルに付与される。
また、上記実験にて用いたサンプルNo.1,No.2,No.3,No.4,No.5,No.6,No.7,No.8について、微細水粒子付与工程の実行前後におけるサンプルの硬さを3名の美容師が手指で確認した。そして、微細水粒子付与工程の実行前後のサンプルの硬さの主観評価を、上記と同様の5段階評価にて行い、その平均値を算出した。ここで、評点は、1,2,3,4,5のいずれかの整数であり、硬いほど評点が高く、柔らかいほど評点が低くなるように、各美容師が主観により判断して評点を付与する。
2束の頭髪のサンプルNo.9,No.10(長さ約50cm、重量25g)を準備し、準備したサンプルに対してそれぞれ実施例5と同様の手順の洗浄工程及び乾燥工程を実行した。その後、各サンプルを構成する複数の頭髪のそれぞれについて、曲げ試験機の測定部に頭髪の毛元部分を1本1本取り付けた。測定部に取り付けた頭髪を、曲率K=-2.5~+2.5(cm-1)の範囲内で、0.4(cm-1・s-1)の変化速度で曲げていき、そのときの曲げ応力を逐次測定した。測定後、曲率の変化に応じて逐次的に得られる曲げ応力から、曲げ応力と曲率Kとの関係である曲げ応力-曲率曲線を求めた。そして、求めた曲げ応力-曲率曲線から、曲率K=0.5~1.5cm-1の範囲及び曲率K=-1.5~-0.5cm-1の範囲における曲線の傾斜(勾配)の平均を、毛元部分の曲げ剛性(単位:N・m2)として、算出した。このようにして、各サンプルを構成する全ての頭髪について曲げ剛性を算出した。そして、算出した曲げ剛性の大きい方から10%~20%(曲げ剛性の大きい上位10%~20%)の範囲の値を抽出し、抽出した値の平均値を、水付与前剛性値として算出した。
3束の頭髪のサンプルA5,B5,C5(長さ約30cm、重量15g)を準備した。サンプルA5について、実施例5と同様の手順の洗浄工程、乾燥工程をこの順で実行した後、サンプルA5から頭髪a5を抜き出し、抜き出した頭髪a5に対して微細水粒子付与工程を実行した。そして、乾燥工程の実行終了後であり微細水粒子付与工程の実行開始前、微細水粒子付与工程を10分間実行した直後、その後さらに微細水粒子付与工程を20分間実行(計30分間実行)した直後、のそれぞれのタイミングにおいて、頭髪a5の表面をSEMにより観察した。また、サンプルB5について、実施例5と同様の手順の洗浄工程、乾燥工程をこの順で実行した後、サンプルB5から頭髪b5を抜き出し、抜き出した頭髪b5に、気化式加湿器を用いて気化した水分を30分間付与した。また、乾燥工程の実行終了後であり気化式加湿器による気化した水分の付与の前、気化した水分を30分間付与した直後、のそれぞれのタイミングにおいて、頭髪b5の表面をSEMにより観察した。さらに、サンプルC5については、実施例5と同様の手順の洗浄工程、乾燥工程、をこの順で実行した後、サンプルC5から頭髪c5を抜き出し、抜き出した頭髪c5に、微粒子イオンドライヤーを用いてマイナスイオンを包含した微粒子イオンを10分間付与した。また、乾燥工程の実行後であり微粒子イオンドライヤーによる微粒子イオンの付与前、微粒子イオンを10分間付与した直後、のそれぞれのタイミングにおいて、頭髪c5の表面をSEMにより観察した。また、微粒子イオンを10分間付与した頭髪c5に対し、実施例5と同様の手順の微細水粒子付与工程を10分間実行した。そして、微細水粒子付与工程実行後のタイミングで頭髪c5の表面をSEMにより観察した。
図18は、頭髪表面のキューティクルの向きを示す概略図である。図18に示すように、キューティクルは、先端が毛先側を向くように、タケノコ状に頭髪表面に形成されている。頭髪がダメージを受けてキューティクルが浮き上がっている場合、キューティクルは毛先側に向かって開く。そのため、頭髪に対して微細水粒子を毛元側から毛先側に向かう方向(順方向)に付与することにより、開いているキューティクルが微細水粒子或いは微細水粒子を運ぶ気流によって閉じ、キューティクルが整えられる。一方、頭髪に対して微細水粒子を毛先側から毛元側に向かう方向(逆方向)に付与することにより、毛先側に向いているキューティクル間のCMC内に効果的に微細水粒子を浸透させることができる。このため、キューティクルを整えて仕上がりを良くするためには、微細水粒子を順方向に付与するのが良く、その一方で、薬剤を用いる場合であって薬剤を頭髪に効率的に浸透させるためには、微細水粒子を逆方向に付与するのがよい。例えば、微細水粒子付与工程を、薬剤塗布工程の実行終了後であって乾燥工程の実行開始前のタイミングに実行する場合、より好ましくは上記第一実施形態の処理Bのタイミング、すなわち薬剤塗布工程の実行終了後であって洗浄工程の実行開始前のタイミング、に実行する場合、薬剤の浸透を促進するために、微細水粒子を逆方向に付与すると良い。これによれば、頭髪に塗布された薬剤が、微細水粒子とともに頭髪に効率的に浸透する。また、例えば上記第一実施形態の処理C,D,Eのタイミングで微細水粒子付与工程を実行する場合、或いは第二実施形態の図10の(b)及び(c)に示すタイミングで微細水粒子付与工程を実行する場合、すなわち微細水粒子付与工程を乾燥工程の実行と同時又は乾燥工程の実行終了後に実行する場合、キューティクルを整えるために微細水粒子を順方向に付与すると良い。これによれば、微細水粒子を頭髪内に浸透させて頭髪のダメージを軽減或いはダメージを受けた頭髪を修復するとともに、手先側に向かって開いているキューティクルを整えることができる。ただし、各例において、微細水粒子の付与方向は、必ずしも限定されない。
第三実施形態では、複数回の薬剤塗布工程を有する頭髪のケア方法について説明する。
7束の頭髪のサンプルA6,B6,C6,D6,E6,F6,N6(長さ約30cm、重量15g)を準備した。そして、各サンプルについて、下記に示す番号順に従って各工程を実行することにより、トリートメント施術を行った。
1)シャンプーを用いたサンプルの洗浄
2)ぬるま湯を用いたサンプルのすすぎ。その後、サンプルのタオルドライ
3)第一薬剤(使用薬剤:第一薬剤(ケラチン等の栄養成分を含み、シリコーン成分を含まないミスト状のトリートメント剤))のサンプルへの塗布(第一薬剤塗布工程)
4)第二薬剤(使用薬剤:第二薬剤(ケラチン等の栄養成分を含み、シリコーン成分を含まないか又は微量のシリコーン成分を含む(シリコーン成分の少ない)液状のトリートメント剤))のサンプルへの塗布(第二薬剤塗布工程)
5)第三薬剤(使用薬剤:ケラチン等の栄養成分及びシリコーン成分を含む液状のトリートメント剤)のサンプルへの塗布(第三薬剤塗布工程)
6)指の腹を使っての薬剤のサンプルへの練り込み(擦り込み工程)
7)ぬるま湯を用いたサンプルのすすぎ。その後サンプルのタオルドライ(第一洗浄工程)
8)第四薬剤(使用薬剤:ケラチン等の栄養成分及びシリコーン成分を含むトリートメント剤)のサンプルへの塗布(第四薬剤塗布工程)
9)ぬるま湯を用いたサンプルのすすぎ、その後サンプルのタオルドライ(第二洗浄工程)
10)ドライヤー乾燥(乾燥工程)
11)頭髪を所定の形にセット(仕上工程)
・サンプルA6:手で掬ったときに毛元部分の手に対する馴染みが良い
・サンプルB6:毛先部分が硬くなるのを防止又は抑制できた
・サンプルC6:手で掬ったときに毛元部分の手に対する馴染みが良く、且つ毛先部分が硬くなるのを防止又は抑制できた
・サンプルD6:手で掬ったときに毛先部分の手に対する馴染みが良い
・サンプルE6:手で掬ったときに毛先部分の手に対する馴染みが良く、毛先部分が硬くなるのを防止又は抑制できた
1-G2/G1
により求めることができる。上式より得られる曲げ剛性低減率の値が正方向に大きいほど、初期状態に比べてトリートメント施術後に頭髪が柔らかくなっていることを表し、負方向に大きいほど、初期状態に比べてトリートメント施術後に頭髪が硬くなっていることを表す。なお、曲げ剛性低減率を求めるにあたり、各サンプルからランダムに頭髪を30本ずつ抽出し、抽出した30本について、まず初期状態の曲げ剛性値G1を測定した。そして、曲げ剛性値G1の大きい上位20%の頭髪をさらに抽出し、抽出した頭髪について、トリートメント施術後の曲げ剛性値G2を測定した。こうして求めた曲げ剛性値G1及びG2を用いて曲げ剛性低減率を求めた。つまり、求めた曲げ剛性低減率は、初期状態の曲げ剛性値G1の上位20%の頭髪についての値である。また、曲げ剛性値G1,G2の測定方法は上述した通りであり、曲げ剛性低減率は各サンプルの毛先部分及び毛元部分のそれぞれについて求めた。
第四実施形態では、頭髪に施すパーマ施術において、頭髪のダメージを抑えることができる頭髪のケア方法について説明する。
4束の頭髪のサンプル(長さ約50cm、重量25g)A7,B7,C7,N7を用意し、各サンプルについて、2液(第一薬剤及び第二薬剤)を用いてパーマを施術した。ここで、第一薬剤は、頭髪の内部組織を切断する機能を有し、第二薬剤は、第一薬剤により切断された頭髪の内部組織を結合する機能を有する。また、サンプルA7については処理F1によりパーマを施術し、サンプルB7については処理F2によりパーマを施術し、サンプルC7については処理F3によりパーマを施術し、サンプルN7については従来処理によりパーマを施術した。これらの処理については後述する。
第五実施形態では、ブリーチ施術において、頭髪のクセを抑えることができる頭髪のケア方法について説明する。
同一人物から採取した3束の頭髪のサンプル(長さ約50cm、重量25g)A8,B8,C8を用意し、各サンプルについて、市販のブリーチ剤を用いてブリーチ施術を行った。ここで、サンプルA8については図28に示す工程順に従った処理(以下、本実施例処理)によりブリーチ施術を行った。また、サンプルB8については、図29Aに示す工程順に従った処理(以下、第一比較処理)によりブリーチ施術を行い、サンプルC8については、図29Bに示す工程順に従った処理(以下、第二比較処理)によりブリーチ施術を行った。図29Aに示す第一比較処理は、第一微細水粒子付与工程、薬剤(ブリーチ剤)塗布工程、放置工程、洗浄工程、乾燥工程、第二微細水粒子付与工程、をこの順で実行する処理である。また、図29Bに示す第二比較処理は、薬剤(ブリーチ剤)塗布工程、放置工程、洗浄工程、乾燥工程、微細水粒子付与工程、をこの順で実行する処理である。
第六実施形態では、熱処理を伴う施術中に微細水粒子付与工程を実行する場合について説明する。
図32に示す工程順にて各工程を実行することにより、縮毛矯正の施術を行ったサンプルA9を作製した。図32に示すように、本例における縮毛矯正の施術は、シャンプー工程、タオルドライ工程、第一薬剤(第1剤)塗布工程、第一放置工程、中間水洗工程(洗浄工程)、乾燥工程、微細水粒子付与工程、アイロン工程(熱処理工程)、第二薬剤(第2剤)塗布工程、第二放置工程、水洗工程(洗浄工程)、トリートメント剤の塗布工程、仕上げ工程、を、この順に実行することにより行われる。この工程順によれば、微細水粒子付与工程は、乾燥工程の実行終了後であってアイロン工程(熱処理工程)の実行開始前に実行される。
Claims (20)
- 人体の頭髪及び頭皮のいずれか又は双方である頭部対象部位を洗浄する洗浄工程と、
前記洗浄工程にて洗浄した前記頭部対象部位を乾燥する乾燥工程と、
前記頭部対象部位に、大きさが50ナノメートル以下の微細水粒子を付与する微細水粒子付与工程と、
を含む、頭髪頭皮のケア方法。 - 請求項1に記載の頭髪頭皮のケア方法であって、更に、
前記頭部対象部位に薬剤を塗布する薬剤塗布工程を含み、
前記洗浄工程が前記薬剤塗布工程の実行終了から所定時間経過後に実行される、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記薬剤塗布工程は複数回実行され、
前記微細水粒子付与工程は、一の薬剤塗布工程の実行終了後であってその次の薬剤塗布工程の実行開始前に実行される、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記微細水粒子付与工程は、前記薬剤塗布工程の実行終了後であって前記乾燥工程の実行開始前に実行されるとともに、
前記微細水粒子付与工程にて、前記頭髪に対して前記微細水粒子を、前記頭髪の毛先側から毛元側に向かう方向に付与する、頭髪頭皮のケア方法。 - 請求項1又は2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記微細水粒子付与工程は、前記乾燥工程の実行と同時又は前記乾燥工程の実行終了後に実行され、
前記微細水粒子付与工程にて、前記頭髪に対して前記微細水粒子を、前記頭髪の毛元側から毛先側に向かう方向に付与する、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記薬剤が、液体状の第一薬剤と第二薬剤を含むパーマ剤であり、
前記薬剤塗布工程は、前記第一薬剤を前記頭髪に塗布する第一薬剤塗布工程と、
前記第一薬剤塗布工程の実行終了後に前記第二薬剤を前記頭髪に塗布する第二薬剤塗布工程と、
を含み、
前記微細水粒子付与工程は、前記第一薬剤塗布工程の実行開始前、又は、前記第一薬剤塗布工程の実行終了後であって前記第二薬剤塗布工程の実行開始前に実行される、頭髪頭皮のケア方法。 - 請求項6に記載の頭髪頭皮のケア方法であって、
前記第一薬剤は前記頭髪の内部組織を切断する機能を有し、
前記第二薬剤は前記第一薬剤により切断された前記頭髪の内部組織を結合する機能を有し、
前記第一薬剤塗布工程の実行終了直後に前記頭髪を第一所定時間放置する第一放置工程と、
前記第二薬剤塗布工程の実行終了直後に前記頭髪を第二所定時間放置する第二放置工程と、を有し、
前記微細水粒子付与工程は、前記第一放置工程の実行終了後であって前記第二薬剤塗布工程の実行開始前に実行される、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記薬剤がブリーチ剤であり、
前記微細水粒子付与工程は、前記洗浄工程の実行終了後であって前記乾燥工程の実行開始前に実行される、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記乾燥工程の実行終了後に実行され、前記頭髪を整える仕上工程を含み、
前記微細水粒子付与工程は、前記薬剤塗布工程の実行開始前から前記仕上げ工程の実行終了後の期間に実行される、頭髪頭皮のケア方法。 - 請求項1又は2に記載の頭髪頭皮のケア方法であって、
前記頭部対象部位が頭髪であり、
前記頭髪を熱処理する熱処理工程を有する、頭髪頭皮のケア方法。 - 請求項10に記載の頭髪頭皮のケア方法であって、
前記微細水粒子付与工程は、前記熱処理工程の実行開始前に実行される、頭髪頭皮のケア方法。 - 請求項1に記載の頭髪頭皮のケア方法であって、
前記微細水粒子付与工程が前記洗浄工程の実行終了後又は前記乾燥工程の実行終了後に実行される、頭髪頭皮のケア方法。 - 請求項1に記載の頭髪頭皮のケア方法であって、
前記微細水粒子付与工程において、前記頭部対象部位に、温度が40℃を超えない微細水粒子を付与する、頭髪頭皮のケア方法。 - 請求項2に記載の頭髪頭皮のケア方法であって、
前記薬剤塗布工程において塗布される薬剤が、カラー剤、トリートメント剤、パーマ剤、ブリーチ剤、縮毛矯正剤の少なくとも一つを含む、頭髪頭皮のケア方法。 - 温度低下により表面の水分を吸収する吸収状態となり、温度上昇により吸収した水分を大きさが50ナノメートル以下の微細水粒子として放出する放出状態となる微細水粒子発生素子と、
前記微細水粒子発生素子が放出した前記微細水粒子を人体の頭髪及び頭皮のいずれか又は双方である頭部対象部位に付与する付与手段と、
前記微細水粒子発生素子と前記付与手段とを制御する制御手段と、
前記頭部対象部位の洗浄実行前の期間と前記頭部対象部位の乾燥実行後の期間との間に、前記微細水粒子を前記頭部対象部位に付与するために操作される操作部と、を備える、
頭髪頭皮のケア装置。 - 請求項15に記載の頭髪頭皮のケア装置であって、
前記操作部が、前記洗浄実行に先立つ前記頭部対象部位への薬剤塗布実行前の期間と前記頭部対象部位の乾燥実行後の期間との間に、前記微細水粒子を前記頭部対象部位に付与するために操作される、頭髪頭皮のケア装置。 - 請求項15に記載の頭髪頭皮のケア装置であって、
前記制御手段が、前記頭部対象部位に、温度が40℃を超えない微細水粒子を付与する、頭髪頭皮のケア装置。 - 請求項15に記載の頭髪頭皮のケア装置であって、
前記制御手段が、前記頭部対象部位に、頭髪の蛋白質構造のガラス転移点以上の温度の微細水粒子を付与する、頭髪頭皮のケア装置。 - 請求項15に記載の頭髪頭皮のケア装置であって、
前記付与手段により微細水粒子が付与される前記頭部対象部位が頭髪を含み、前記微細水粒子発生素子が水の単分子よりも大きな前記微細水粒子を放出することにより、前記微細水粒子が頭髪内に留まり頭髪のキューティクルの状態を改善する、頭髪頭皮のケア装置。 - 請求項15に記載の頭髪頭皮のケア装置であって、
前記付与手段により微細水粒子が付与される前記頭部対象部位が頭髪を含み、前記微細水粒子発生素子が無帯電の前記微細水粒子を放出することにより、前記微細水粒子が頭髪内に浸透し頭髪のキューティクルの状態を改善する、頭髪頭皮のケア装置。
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