JP5990033B2 - Hair cosmetic and hair dyeing or decoloring method using the same - Google Patents

Description

  The present invention relates to a hair cosmetic and a method for dyeing or decoloring hair using the same.

  Conventionally, in hair dyeing and depigmenting operations, the operation of transferring the hair cosmetic accumulated in a shallow container to an applicator and applying it to the hair has been repeated. Since this repetitive operation is complicated, it often causes the treatment to fail. Therefore, in order to eliminate this repeated operation, a storage unit application unit-integrated hair dyeing tool that supplies the hair cosmetic material from the hair cosmetic storage unit to the application unit via the connecting unit has been proposed (for example, Patent Documents). 1).

  However, in the hair dyeing or decoloring treatment using such a storage unit application unit-integrated hair coloring tool, there arises a new problem that the dischargeability of the hair cosmetics is lowered. In order to solve this problem, if the viscosity of the hair cosmetic is lowered and its fluidity is increased, the hair cosmetic tends to sag during application to the hair. Moreover, after application | coating, hair cosmetics become easy to adhere to other parts of hair and parts other than hair.

  By the way, in hair dyeing and decolorization, there are so-called whole dyeing in which the entire hair is uniformly dyed, and partial dyeing called highlighting or low lighting in which a part of the hair is selected and dyed. In the case of whole dyeing, it is not necessary to select a specific part of the hair, so that the hair dyeing work is relatively easy. On the other hand, partial dyeing is relatively complicated. For example, in a hair salon, the hair to be partially dyed is pulled out from the head in a layered manner with a tapered tail portion of a so-called tail comb, and a hair dye is applied to the hair with a brush. However, it is difficult for individuals to carry out such hair salon operations themselves.

  In view of this, a dedicated instrument has been proposed for individuals to carry out such partial dyeing themselves. For example, Patent Document 2 proposes a hair dyeing nozzle in which a pair of opening grooves is arranged at the tip of a hollow cylindrical body having a flow passage for flowing a colorant therein. . The hair to be partially dyed can be inserted into the gap between the pair of opening grooves. When partial dyeing is performed, the hair to be partially dyed is inserted into a bundle in the opening groove of the nozzle attached to the discharge container. Then, the tip of the nozzle is positioned at the root portion of the hair, and the nozzle is moved from the root portion of the hair to be partially dyed to the hair tip portion while pressing the discharge container. Then, since the hair dye is discharged into the opening groove, a desired portion of the hair is thereby partially dyed.

  However, when the nozzle described in Patent Document 2 is used, it is difficult to completely dye the root portion of the hair to be partially dyed. This is because it is difficult to bring the opening groove completely close to the root of the hair by the predetermined width of the base end (connecting portion with the container) of the nozzle. In addition, when the nozzle described in the same document is used, it is necessary to pass the hair between the pair of open grooves with the hair tip pinched with a finger and the head hair being taut, so that the tip of the head hair is dyed. I can't do it.

JP 2000-16470 A JP-A-10-290712

  Therefore, the subject of this invention is providing the hair cosmetics which can eliminate the fault which the prior art mentioned above has.

The present invention relates to a composition A containing an alkali agent and a surfactant;
A composition B containing an oxidant; and a container portion containing hair cosmetics having a viscosity of 3 to 30 Pa · s at 30 ° C. produced by mixing the compositions A and B; and the hair cosmetics in a bundle of hair A hair cosmetic applicator comprising: an application part to be applied; and a hair cosmetic applicator comprising an extension part having a liquid lead-out path communicating the container part and the application part,
The application section has a discharge opening and a comb section, and the comb section provides a hair cosmetic product having a plurality of comb teeth arranged in a substantially annular shape so as to surround the discharge opening.

The present invention also relates to a composition A containing an alkali agent and a surfactant;
A composition B containing an oxidant; and a container portion containing hair cosmetics having a viscosity of 3 to 30 Pa · s at 30 ° C. produced by mixing the compositions A and B; and the hair cosmetics in a bundle of hair A hair cosmetic applicator comprising: an application part to be applied; and an extension part having a liquid lead-out path that allows the container part and the application part to communicate with each other. And a comb hair part, and the comb part is a hair coloring or decoloring method using a hair cosmetic product having a plurality of comb teeth arranged in a substantially annular shape so as to surround the periphery of the discharge port,
The present invention provides a method for dyeing or decoloring hair having the following steps 1) to 3).
1) The process which mixes the said compositions A and B in the said container part, and produces the said hair cosmetics in this container part.
2) Using the hair cosmetic applicator in a state in which the container containing the hair cosmetic, the application part, and the extension part are assembled, and through the liquid lead-out path of the extension part, Supplying the hair cosmetic from the container to the application unit.
3) The process of apply | coating the said hair cosmetics supplied to the said application part to hair.

  ADVANTAGE OF THE INVENTION According to this invention, the mixing property when each composition is mixed in the container part of an applicator is favorable, and the hair cosmetics which the hair cosmetics produced by mixing exhibit appropriate fluidity | liquidity are provided. The effect of the hair cosmetic product of the present invention is particularly remarkable when performing partial dyeing of hair, particularly when performing streak application.

FIG. 1 is a partially broken side view showing an embodiment of a hair cosmetic applicator used in the hair cosmetic of the present invention. FIG. 2 is an enlarged perspective view of an application part of the hair cosmetic applicator shown in FIG. FIG. 3 is a plan view of the comb tooth base of the application part of the hair cosmetic applicator shown in FIG. 1 as seen from the surface side from which the comb part protrudes. FIG. 4 is a partial cross-sectional view showing a connection state between the application part and the extension part of the hair cosmetic applicator shown in FIG. 1. FIG. 5 is a perspective view showing a state in which liquid or foam hair cosmetic is stored in the space inside the cylindrical comb portion in the hair cosmetic applicator shown in FIG. 1. FIG. 6 is a perspective view showing a state in which the hair cosmetic is applied to the hair using the hair cosmetic applicator shown in FIG.

  Hereinafter, the present invention will be described based on preferred embodiments thereof. The hair cosmetic product of the present invention is mainly applied to hair, and is used for hair dyeing, decolorization, and destaining. That is, in the present invention, when the hair cosmetic contains a dye, the hair cosmetic is used to dye the hair, and when it does not contain the dye, it is used to decolor the hair. Further, when the hair cosmetic product of the present invention is used for hair already applied with a hair dye, the hair cosmetic product is used for decoloring the hair. The hair cosmetic is composed of at least three of (i) a composition A containing an alkali agent and a surfactant, (ii) a composition B containing an oxidizing agent, and (iii) a hair cosmetic applicator. It is in the form of a kit housed in one package. Composition A and Composition B are independently contained in separate containers. In a state before use of the hair cosmetic product of the present invention, each composition is hermetically contained in a container.

  When the hair cosmetic product of the present invention is a cosmetic product for hair dyeing, the composition A contains a dye in addition to the alkaline agent and the surfactant. When the hair cosmetic product of the present invention is a decolorizing cosmetic product, the composition A contains an alkaline agent and a surfactant without containing a dye. Regardless of whether the hair cosmetic product of the present invention is for hair dyeing or decolorization, the composition A is a liquid body, a cream body, a paste body, or a powder body. However, it is preferably a liquid or cream-like body.

  Regardless of whether the hair cosmetic of the present invention is for hair dyeing or for decolorization, the composition B may be a liquid or a cream-like or paste-like, A liquid or cream-like body is preferable, and a liquid body is more preferable.

  As stated above, each composition is hermetically contained in a separate container. In the case where the composition is a liquid, for example, a container that contains the composition may be a bottle that has a mouth portion that opens upward and the mouth portion can be closed with a closure member. it can. When the composition is a cream-like body, for example, a tube can be used as a container for housing the composition. When the composition is in the form of a powder, for example, a sachet (pouch) can be used as a container for containing the composition.

  FIG. 1 shows a partially broken side view of an embodiment of a hair cosmetic applicator (hereinafter also simply referred to as “applicator”) that is an element of the hair cosmetic product of the present invention. As shown in FIG. 1, the applicator 1 includes an applicator 2 having a comb portion 23 composed of an agent discharge port 21 and a plurality of comb teeth 22 arranged in an approximately annular shape so as to surround the periphery of the agent discharge port 21. And a container part 4 that accommodates hair cosmetics (not shown) and can supply the hair cosmetics to the application part 2. The applicator 1 also has an extension 5 having a liquid outlet 51 for supplying hair cosmetics from the container 4 to the applicator 2.

  The application unit 2 is a part that comes into contact with the hair, and the hair cosmetic can be applied to the hair while combing the hair with the comb unit 23. As shown in FIGS. 2 and 3, the application unit 2 includes a comb tooth base 20 having a circular shape in plan view, and the hair cosmetic supplied through the extension part 5 is provided at the center of the comb tooth base 20. The agent discharge port 21 to be discharged is open. A large number of comb teeth 22 are provided in a substantially annular shape on the comb tooth base 20 so as to surround the periphery of the agent discharge port 21. These comb teeth 22 form a cylindrical comb portion 23 on the comb tooth base 20. The comb teeth 22 and the comb tooth base 20 are integrally formed of synthetic resin. As shown in FIG. 3, the comb teeth 22 have a circular shape in plan view and a cross-sectional shape, and are arranged at equal intervals on a circular line 24 surrounding the agent discharge port 21. However, each comb tooth 22 does not need to be arranged on the circular line 24 as long as the locus on which the comb teeth 22 are arranged so as to draw an isotropic figure. For example, each comb tooth 22 should just be arrange | positioned so that the locus | trajectory of regular polygons, such as a regular triangle, a regular hexagon, or a regular octagon, may be drawn. The “substantially annular” in the present invention is a concept including such a regular polygon.

  As shown in FIG. 4, the upper end of the extension portion 5 is open, and an annular rib 52 projects from the open end. On the other hand, an annular groove portion 26 complementary to the annular rib 52 is recessed in the lower surface portion of the comb tooth base 20 of the application portion 2. And the extension part 5 and the application part 2 couple | bond together by the annular rib 52 and the annular groove part 26 fitting. About the lower end of the extension part 5, it can be fitted with the upper end of the connection cap 45 (refer FIG. 1) described below, and the extension part 5 and the connection cap 45 are couple | bonded by this fitting.

  Returning to FIG. 1, the container portion 4 is disposed in the outer container 42 having a bottomed cylindrical shape that can be squeezed and the outer container 42, and the mouth portion is airtightly joined to the inner surface of the cylindrical mouth portion of the outer container 42. The container body 41 has an inner bag 43 and a double-structured container including a connection cap 45 with a check valve 44 attached to the mouth of the container body 41. A thread is provided on the inner surface of the connection cap 45, and this thread can be screwed with a thread provided on the outer surface of the mouth portion of the container body 41. The container unit 4 holds the outer container 42 with one hand and squeezes the outer container 42 with one hand, so that the air between the outer container 42 itself or the outer container 42 and the inner bag 43 is changed to the inner inner bag. 43 is pressed, whereby the hair cosmetic in the inner bag 43 is pushed out and supplied to the agent discharge port 21 via the liquid outlet 51. An extension portion 5 that forms a predetermined interval between the container portion 4 and the application portion 2 is coupled to the upper portion of the connection cap 45, and the other end of the extension portion 5 is the back surface of the comb tooth base 20. Bonded to the side. The extension portion 5 includes a liquid outlet passage 51 therein, and communicates between the container portion 4 and the agent discharge port 21 via the liquid outlet passage 51.

  A suction port 42 a is formed in the cylindrical mouth portion of the outer container 42 to communicate the space between the outer container 42 and the inner bag 43 and the outside of the outer container 42. Then, when the outer container 42 that has been pressed and deformed returns to its original state by the elastic restoring force, the air outside the container 1 has a gap 42b provided between the lower end of the connection cap 45 and the outer container 42, and It flows between the outer container 42 and the inner bag 43 through the suction hole 42a. By having such a structure, the container part 4 can discharge the hair cosmetics which are the contents from the agent discharge port 21 gradually by repeating the operation which presses and deform | transforms an outer peripheral surface.

  By using such a double-structured container for the container part 4, it is possible to prevent the container part 4 from being squeezed and difficult to grip even when the remaining amount of the hair cosmetic inside is reduced. In addition, a check valve 44 is provided in the connection cap 45, the liquid outlet 51 that communicates the space in the container 4 and the agent discharge port 21, and the air is discharged after the agent is discharged. By preventing the hair from flowing backward, it is possible to prevent the hair cosmetic from becoming difficult to come out or the hair cosmetic from being scattered during the next discharge. Furthermore, by providing the check valve 44, the hair cosmetic can be supplied to the application unit 2 regardless of the spatial positional relationship between the application unit 2 and the container unit 4. The distance L (see FIG. 1) from the portion of the outer container 42 of the container part 4 that is not covered by the connection cap 45 to the comb part 23 is a viewpoint that improves the visual confirmation of the state of application to the hair and the ease of application work, etc. From the viewpoint, the thickness is preferably 40 to 200 mm, more preferably 70 to 120 mm, and still more preferably 80 to 100 mm.

  The applicator 1 having the above configuration is in a disassembled state before the use of the hair cosmetic product of the present invention. For example, the container body 41 is in a two-part state consisting of a member in which the application part 2, the extension part 5, and the connection cap 45 are joined.

  When using the hair cosmetic of the present invention, a hair cosmetic is produced by mixing the respective compositions. This mixing is achieved by, for example, putting compositions A and B in a container. More specifically, it is achieved by putting the composition A in a container containing the composition B. Alternatively, this can be achieved by placing the composition B in a container containing the composition A. Among these, it is preferable to put the composition A into a container containing the composition B from the viewpoint of successful mixing. Instead of these mixing modes, one blank container may be added to the package of the kit, and the respective compositions may be put in the blank container and mixed in the order described above. In any case, it is advantageous to use the container part 4 which is a part of the applicator 1 described above as a container for mixing the compositions. In this case, if the container part 4 is used as a storage container for the composition B before the use of the hair cosmetic product and the container part 4 is used as a storage container for the hair cosmetic product when using the hair cosmetic product, the container included in the kit There is an advantage that the number of can be reduced.

  When each composition is put in the container part 4, the opening part of the container part 4 is closed with a plugging member, and the container is shaken under the closed state to promote mixing of each composition, resulting in a hair cosmetic. Let Instead, the opening of the container part 4 is closed with the extension part 5 with the application part 2 attached, and the container part 4 is shaken under the closed state to promote mixing of the respective compositions. You can also.

  When mixing of each composition is completed and a hair cosmetic is produced, it is applied to the hair. When the opening part of the container part 4 is obstruct | occluded with the plugging member, the plugging member may be removed from the opening part, and then the extension part 5 with the application part 2 attached may be attached to the container part 4. Thereby, the hair cosmetic applicator 1 in a state in which the container portion 4 containing the hair cosmetic material, the application portion 2, and the extension portion 5 are assembled is completed. When mixing each composition, when the extension part 5 in a state where the application part 2 is attached is attached to the opening part of the container part 4 and closed, the container containing the hair cosmetic when the mixing is completed The hair cosmetic applicator 1 in a state in which the part 4, the application part 2, and the extension part 5 are assembled is completed. And this hair applicator 1 is used to apply hair cosmetics to the hair. Specifically, the following operations are performed.

  First, the outer container 42 is grasped with one hand and repeatedly squeezed, whereby the hair cosmetic in the container part 4 is sent to the application part 2 and the hair cosmetic is discharged from the agent discharge port 21. Then, as shown in FIG. 5, a desired amount of the hair cosmetic 3 is stored inside the cylindrical comb portion 23. Next, the application part 2 holding the hair cosmetic 3 is moved to the head as shown in FIG. 6, and the comb part 23 is pressed against the hair side. Subsequently, the hair treatment agent 3 is applied to the hair inserted between the adjacent comb teeth 22 while the applicator 2 is moved toward the tip of the hair and combing the hair with the comb 23. As described above, the comb teeth 22 of the agent discharge port 21 are arranged so that the trajectory drawn by each comb tooth 22 is an approximately circular ring that is an isotropic figure. Even if the direction of the application part 2 changes unintentionally, since the application width of the hair cosmetic does not change substantially, the hair cosmetic can be easily applied with a substantially constant width.

  The application unit 2 can be applied to the hair over a certain length with a certain coating width by a single coating operation in which the coating unit 2 is moved once from the top of the head toward the hair tip. From the viewpoint and the viewpoint of preventing leakage of the cosmetic material between the comb teeth 22, the height of the comb teeth 22 is 5 to 30 mm in the case of a medium-haired woman with a hair length of about 20 to 25 cm. Preferably, it is 5-20 mm, More preferably, it is 7-17 mm. From the same viewpoint, the inner diameter L4 (see FIG. 3) of the circular line 24 through which the cross-sectional center of the base end portion of the comb tooth 22 circumscribes is preferably 5 to 30 mm, more preferably 5 to 20 mm. More preferably, it is 5-15 mm, More preferably, it is 8-13 mm. The range of the inner diameter L4 is also a range that provides a preferable stripe width when performing high-lighting or low-lighting. By setting the inner diameter L4 within the above range, the stripe width of high or low lighting can be made appropriate and a natural finish can be achieved. In the present invention, “highlighting” or “lowlighting” means that a part of the hair is decolored or dyed in a streak shape from the root to the hair tip. In the present invention, the inner diameter of the comb portion refers to the inner diameter of a circular line through which the cross-sectional center of the base end portion of the comb teeth 22 is circumscribed. Further, the width W of the comb teeth 22 is preferably 0.1 to 5 mm, more preferably 0.1 to 5 mm from the viewpoint of increasing the mechanical strength of the comb teeth and facilitating insertion of the comb teeth into the hair. 3 mm, more preferably 0.5 to 2.5 mm. The width W is a projected width when the comb teeth are viewed from the central portion side of the agent discharge port (FIG. 3).

In the hair cosmetic product of the present invention comprising the above-described composition and the kit comprising the applicator 1 as components, the following three factors (a) that affect each other in order to easily achieve a clear treatment effect: As a result of the examination by the present inventors, it has been found that it is advantageous to balance (b) and (c).
(A) Viscosity of hair cosmetics.
(B) Diameter and length of the liquid outlet path 51 in the extension portion 5.
(C) The ratio of the volume of the head space of the container part 4 in the state in which the hair cosmetic 3 is accommodated in the volume of the container part 4.

  As for the above (a), when the viscosity of the hair cosmetic 3 generated by mixing each composition is low, the fluidity is high, and it is easy to mix and disperse the compositions A and B uniformly. is there. In addition, there is an advantage that the coatability and dischargeability of the hair cosmetic 3 are excellent. On the other hand, the hair cosmetic 3 is liable to drip at the time of application, and there is a disadvantage that it is inferior in usability. On the other hand, when the viscosity of the hair cosmetic 3 is high, there is an advantage that the hair cosmetic 3 is difficult to drip at the time of application and is excellent in usability. On the other hand, there is a drawback that it is not easy to uniformly mix and disperse the compositions A and B, and there is a disadvantage that the applicability and dischargeability of the hair cosmetic are inferior. Thus, improving the uniform dispersibility and mixing property of the compositions A and B and improving the applicability and usability of the hair cosmetics are in a trade-off relationship.

  Regarding (b), when the diameter of the liquid outlet path 51 in the extension portion 5 is large, a sufficient space for the hair cosmetic material 3 to smoothly move from the container portion 4 to the application portion 2 is secured. There is an advantage that the discharge property of the hair cosmetic 3 becomes good. However, when the diameter of the liquid lead-out path 51 is large, if the extension part 5 is too long, there is a disadvantage that the squeeze operation of the container part 4 must be repeated a plurality of times in order to push out a sufficient amount of the hair cosmetic 3. Moreover, if the extension part 5 is too long or too short, the operability of the applicator 1 is lowered.

  As for the above (c), in the present invention, it is preferable to provide a head space in the container part 4. In mixing the compositions A and B used in the present invention, it is necessary to shake to promote mixing. Therefore, in order to effectively perform shaking, a sufficient head space is ensured in a state where each composition is placed in the container portion 4 which is a container for mixing the compositions. Therefore, when the ratio of the volume of the head space to the volume of the container part 4 is large, when each composition is mixed to produce a hair cosmetic, a space in which each composition moves is sufficiently secured. There is an advantage that the mixing property is increased. On the other hand, the volume of the container part 4 becomes large, making it difficult to hold the container part 4 and thus making it difficult to squeeze, and that the package of the kit becomes bulky and takes up a lot of product display space. Etc. Conversely, when the ratio of the volume of the head space to the volume of the container part 4 is small, the volume of the container part 4 can be reduced, which has the advantage that the package of the kit can be reduced. On the other hand, there is a drawback that it is difficult to mix each composition sufficiently. Further, the volume of the head space is related to the viscosity of the hair cosmetic 3, and when the viscosity of the hair cosmetic 3 is low, mixing can be sufficiently performed even with a relatively small volume of head space. Conversely, when the hair cosmetic 3 has a high viscosity, it is necessary to ensure a sufficient volume of head space.

  Thus, since the factors (a), (b) and (c) described above influence each other, for example, when the viscosity of the hair cosmetic 3 is high and a decrease in its discharge property and mixing property is predicted. Further, it is necessary to make advanced adjustments such as increasing the diameter of the liquid outlet path 51 or increasing the ratio of the volume of the head space to the volume of the container section 4. Further, when the ratio of the volume of the head space to the volume of the container portion 4 is increased, as a result, the total length of the applicator 1 is expected to be increased, and advanced adjustment such as shortening the extension portion 5 is required.

  Based on the above situation, the present inventors have made various studies. As a result, the diameter at the narrowest portion of the liquid outlet path 51 is a (mm), and the viscosity of the hair cosmetic 3 at 30 ° C. is b (Pa · s). When the value of a / b is preferably 0.1 to 5, more preferably 0.2 to 4, more preferably 0.3 to 2, and still more preferably 0.4 to 1, the hair It has been found that the dischargeability of the cosmetic 3 can be improved and the discharge amount can be easily controlled. When the cross section of the liquid outlet path 51 is circular, the diameter of the circle corresponds to the diameter a at the narrowest portion. When the cross section of the liquid outlet path 51 has a shape other than a circle, the equivalent circle diameter based on the area of the cross section is defined as the diameter a. The viscosity b of the hair cosmetic 3 at 30 ° C. was measured using a B-type viscometer (B-type rotational viscometer (Model TV-10) manufactured by Tokimec Co., Ltd.), spindle No. 4. A value measured at 30 ° C. for 1 minute under the condition of a rotation speed of 30 rpm. However, when the viscosity exceeds 2 Pa · s, a B-type viscometer (B8R type rotational viscometer (Model TVB-10) manufactured by Tokimec Co., Ltd.) is used and the conditions are spindle No. TC and rotation speed 10 rpm. The value after rotating at 30 ° C. for 1 minute. In addition, it shall measure immediately after mixing the composition A and B, and the temperature change by reaction heat shall be disregarded.

  When the hair cosmetic product of the present invention satisfies the above relationship, the value of the diameter a of the liquid outlet channel 51 is preferably 2 to 50 mm, more preferably 3 to 30 mm, more preferably 3 to 15 mm, and still more preferably. 5 to 10 mm. By setting the diameter a of the liquid lead-out path 51 within this range, not only the discharge property of the hair cosmetic 3 and the control of the discharge amount are improved, but also the retention property when the applicator 1 is gripped by hand. The design of the applicator 1 is also improved. On the other hand, the viscosity itself of the hair cosmetic 3 is 3 to 30 Pa · s at 30 ° C., preferably 5 to 15 Pa · s, more preferably 7 to 13 Pa · s, and 8.5 to 13 Pa. -More preferably, it is s. By setting the viscosity of the hair cosmetic 3 within this range, not only the dischargeability of the hair cosmetic 3 is improved, but also the hair cosmetic 3 is effectively prevented from dripping during application, and the hair The extensibility of the hair cosmetic 3 on the top is also improved.

  The hair cosmetic product of the present invention preferably satisfies the following relationship in addition to or instead of having the above relationship. That is, when the proportion of the volume of the head space of the container part 4 in the state in which the hair cosmetic 3 is accommodated in the volume of the container part 4 is c (%), the value of c / b is 0.5. It is preferably ~ 15, more preferably 0.6-13, still more preferably 0.8-10, and even more preferably 1-7. The value of c / b is a measure of the ease of shaking the hair cosmetic 3 in the container part 4. And if the value of c / b is in the said range, since mixing of each composition can be performed reliably, while being able to obtain the hair cosmetics 3 of the target viscosity, for hair dyeing or decoloring of hair Unevenness can be prevented from occurring.

In relation to the value of c / b, the proportion c of the volume of the headspace is preferably 5 to 90%, more preferably 10 to 80%, more preferably 15 to 70%. The volume of the headspace is the container part immediately after the composition A is put in the container part 4 containing the composition B and the container part 4 is closed and the container part 4 is shaken to promote mixing. 4 is defined as the volume of the space. The volume ratio of the head space is measured by the following procedure. (1) Mark the height of the upper surface of the hair cosmetic in the container part 4 after promoting the mixing of the compositions A and B as described above. (2) After emptying this container part 4, water is put to the marked height, the mass is measured, and the mass is converted into a volume. The volume is defined as E (cm ³ ). (3) Fill the empty container part 4 with water, measure its mass, and convert the mass to volume. The volume is defined as F (cm ³ ). (4) A value calculated from (1−E / F) × 100 is set as a volume ratio of the head space. At this time, the density of water is set to 1 g / cm ³ . In relation to the volume of the head space, the volume of the container part 4 itself is preferably ³ to 300 cm ³ , more preferably 20 to 200 cm ³ , still more preferably 50 to 160 cm ³ . By setting the volume of the container part 4 within this range, it is possible to accommodate a sufficient amount of the hair cosmetic 3 necessary for the treatment. In relation to the volume of the vessel 4, the cross-sectional area of the container portion 4 is preferably set to 0.7～80Cm ^2, more preferably, to 2～60Cm ^2, be 3～40Cm ² More preferably, it is more preferably 10 to 20 cm ² . By setting the cross-sectional area of the container part 4 within this range, the container part 4 can be easily gripped and thus squeezed easily. The volume of the hair cosmetic 3 generated in the container portion 4, on the condition that the ratio c of the volume of the head space is within the range described above, is preferably 2～200Cm ^3, is 20～150Cm ³ It is more preferable, and it is still more preferable that it is 50-135 cm < ³ >.

  In the hair cosmetic product of the present invention, the overall length of the applicator 1 is one of the factors that affect the operability of the applicator 1 and the discharge performance of the hair cosmetic 3. From this viewpoint, the total length of the applicator 1, that is, the length from the lowest part to the highest part in the upright state shown in FIG. 1, is preferably 5 to 40 cm, more preferably 10 to 40 cm, still more preferably 15 to 30 cm, More preferably, it is set to 20 to 25 cm.

  In addition, it is preferable to set the hair cosmetic 3 to a high pH because a clear treatment effect can be obtained. However, on the other hand, the hair is easily damaged. Therefore, from the viewpoint of obtaining a clear treatment effect while reducing damage to the hair, the pH of the hair cosmetic 3 is preferably 8.0 to 12.5 at 25 ° C., and 8.0 to 11. It is more preferable to set it as 0, and it is still more preferable to set it as 8.0-10.5. The pH is measured by, for example, a pH meter F-51 manufactured by Horiba, Ltd.

<Alkaline agent>
The composition A used for the hair cosmetic of the present invention contains an alkaline agent. Examples of the alkali agent include ammonia, ammonium carbonate, ammonium bicarbonate, isopropanolamine, monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol, sodium hydroxide, potassium hydroxide, sodium carbonate. , Sodium silicate, arginine and the like. An alkali agent can be used individually by 1 type or in combination of 2 or more types. Among these, at least one selected from ammonia, ammonium carbonate and ammonium bicarbonate is preferable from the viewpoint of sufficient dyeing effect.
The proportion of the alkali agent in the composition A is preferably 1 to 50% by mass, more preferably 1.2 to 30% by mass, still more preferably 1.5 to 20% by mass. More preferably, it is made into 15 mass%. By setting the ratio of the alkaline agent within this range, a sufficient dyeing effect can be obtained without excessive damage to the hair.

<Surfactant>
The composition A used for the hair cosmetic of the present invention contains a surfactant. The composition B of the present invention can contain a surfactant. When the composition B contains a surfactant, the surfactant may be the same as or different from the surfactant contained in the composition A.
In any case where the surfactant is contained only in the composition A and in both the compositions A and B, the surfactant is a mixture of the compositions A and B. In order to improve the discharge and application properties of the hair cosmetic produced by the above, 0.1 to 40% by mass, further 0.5 to 30% by mass, and further 1 to 20% by mass in the hair cosmetic. It is preferable to contain.
As surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants are used to improve the discharge and application properties of hair cosmetics produced by mixing compositions A and B. Any of the surfactants can be used. Among these, it is preferable to use a combination of a cationic surfactant and a nonionic surfactant in order to improve the above-described ejection properties and coating properties.

(Anionic surfactant)
Anionic surfactants include sulfate ester surfactants such as alkyl sulfates and alkyl ether sulfates; carboxylic acid surfactants such as fatty acid salts, alkyl succinates and alkenyl succinate salts; alkyl phosphates and alkyl ethers. Phosphate ester surfactants such as phosphates; sulfonic acid surfactants such as sulfosuccinates, isethionates, taurates, alkylbenzene sulfonic acids, α-olefin sulfonic acids, alkane sulfonic acids, and the like. Preferred examples include alkyl sulfates and polyoxyalkylene alkyl sulfates. Those alkyl groups preferably have 10 to 24 carbon atoms, more preferably 12 to 18 carbon atoms, and these alkyl groups are linear. Is preferred. Further, polyoxyalkylene alkyl sulfates and more preferably polyoxyethylene alkyl sulfates are preferable, and those having an average addition mole number of oxyethylene groups of 1 to 10, and more preferably 2 to 5 are particularly preferable.
The anionic surfactant is 0.1 to 20% by mass, more preferably 0.5% in the hair cosmetic composition in order to improve the discharge and coating properties of the hair cosmetic composition produced by mixing the compositions A and B. It is preferable to contain -15 mass%.

(Cationic surfactant)
As the cationic surfactant, mono long chain alkyl quaternary ammonium salts are preferable, and specific examples thereof include cetrimonium chloride, steartrimonium chloride, behentrimonium chloride, stearalkonium chloride, benzalkonium chloride and the like. Stearyltrimonium chloride and behentrimonium chloride are more preferable. Commercially available cationic surfactants include Coatamine 86W, 86P Conch, 60W, D2345P (above, manufactured by Kao Corporation) and Nikkor CA-2580 (manufactured by Nippon Surfactant Kogyo Co., Ltd.).
In order to improve the discharge and application properties of the hair cosmetic produced by mixing the compositions A and B, the cationic surfactant is 0.1 to 5% by mass in the hair cosmetic, and further 0.3. It is preferable to contain -3 mass%.

(Amphoteric surfactant)
Amphoteric surfactants include carbobetaines, amidebetaines, sulfobetaines, hydroxysulfobetaines, amidesulfobetaines, phosphobetaines, imidazo having an alkyl group, alkenyl group or acyl group having 8 to 24 carbon atoms. Examples thereof include linium-based surfactants, and among them, carbobetaine-based surfactants and sulfobetaine-based surfactants are preferable. Preferred amphoteric surfactants include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryldimethylaminoacetic acid betaine, lauryl hydroxysulfobetaine and the like.
The amphoteric surfactant is used in the hair cosmetic composition in order to improve the discharge and coating properties of the hair cosmetic composition produced by mixing the compositions A and B. It is preferable to contain -3 mass%.

(Nonionic surfactant)
Nonionic surfactants include alkyl polyglucosides, polyoxyalkylene alkyl ethers, alkyl glyceryl ethers and the like. As the alkyl polyglucoside, those in which the alkyl group has 8 to 18 carbon atoms, more preferably 8 to 14 carbon atoms, and further 9 to 11 carbon atoms are preferable, and those in which the alkyl group is linear are preferable. The average condensation degree of glucoside is preferably 1 to 5, and more preferably 1 to 2. As the polyoxyalkylene alkyl ether, those in which the alkyl group has 10 to 22 carbon atoms and more preferably 12 to 18 carbon atoms are preferable, and those in which the alkyl group is linear are preferable. Moreover, polyoxyethylene alkyl ether is more preferable, and those having an average addition mole number of oxyethylene group of 1 to 40, and further 4 to 30 are particularly preferable. As the alkyl glyceryl ether, those in which the alkyl group has 8 to 18 carbon atoms, more preferably 8 to 12 carbon atoms are preferable, and those in which the alkyl group is branched are preferable.
The nonionic surfactant is 0.5 to 15% by mass in the hair cosmetic, and more preferably 1 to 1 in order to make the discharge and coating properties of the hair cosmetic produced by mixing the compositions A and B good. It is preferable to contain 10 mass%.

<Oxidizing agent>
Composition B used for the hair cosmetic of the present invention contains an oxidizing agent. For example, hydrogen peroxide can be used as the oxidizing agent. The ratio of the oxidizing agent in the composition B is preferably 0.1 to 15% by mass, more preferably 0.5 to 12% by mass, still more preferably 1 to 10% by mass. More preferably, it is made into 10 mass%. By setting the ratio of the oxidizing agent within this range, a sufficient dyeing effect can be obtained without damaging the hair excessively.

<Dye>
The composition A used for the hair cosmetic of the present invention contains a dye when the hair cosmetic is used for dyeing hair. Examples of the dye include oxidative dye intermediates and direct dyes.

(Oxidized dye intermediate)
As the oxidation dye intermediate, a precursor and a coupler that are usually used in hair dyes can be used. Examples of the precursor include paraphenylenediamine, toluene-2,5-diamine, orthochloroparaphenylenediamine, N-phenylparaphenylenediamine, N, N-bis (hydroxyethyl) paraphenylenediamine, and 3-methyl-4-amino. Phenol, 2-hydroxyethylparaphenylenediamine, paraaminophenol, paramethylaminophenol, 4-amino-methcresol, orthoaminophenol, and salts thereof can be mentioned.
Examples of the coupler include resorcin, 2-methylresorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, metaphenylenediamine, orthoaminophenol, metaaminophenol, paraaminophenol, 2,4- Examples include diaminophenoxyethanol, 2,6-diaminopyridine, 2-methyl-5-hydroxyethylaminophenol, 2-amino-3-hydroxypyridine, and salts thereof.
Two or more precursors and couplers may be used in combination, and the content of each of the precursor and the coupler is preferably 0.01 to 5% by mass, more preferably 0.1 to 4% by mass in the composition A.

(Direct dye)
Examples of direct dyes include acid dyes, nitro dyes, disperse dyes, and basic dyes. More specifically, examples of the acid dye include blue No. 1, purple No. 401, black No. 401, orange No. 205, red No. 227, red No. 106, yellow No. 203, acidic orange 3, and the like. As 2-nitro-p-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 4-amino-3 -Nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC blue 2, HC orange 1, HC red 1, HC yellow 2, HC yellow 4, HC yellow 5, HC red 3, N, N-bis (2 -Hydroxyethyl) -2-nitro-p-phenylenediamine and the like, and the disperse dyes include disperse purple 1, disperse blue 1, disperse black 9, and the like, and basic dyes include Group of blue 99, basic brown 16, basic brown 17, basic red 76, basic yellow 76, basic orange 31, basic red 51, and the like.
Two or more direct dyes may be used in combination, or may be used in combination with an oxidation dye intermediate. Moreover, the content is 0.001-5 mass% in the composition A, Furthermore, 0.01-3 mass% is preferable.

<Oil agent>
In the compositions A and B used for the hair cosmetics of the present invention, in order to make the discharge and application properties of the hair cosmetics produced by mixing the compositions A and B good, either or both, Furthermore, an oil agent can be contained. Such oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, cycloparaffin; glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; beeswax, whale wax, lanolin, Waxes such as carnauba wax; isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononyl isononanoate, tridecyl isononanoate Esters such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearyl acid, isopalmitic acid, and the like; Myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, 2-octyldodecanol, higher alcohols such as cetostearyl alcohol; Other isostearyl glyceryl ether, polyoxypropylene butyl ether. Of these, higher alcohols are preferable, and myristyl alcohol, cetyl alcohol, and stearyl alcohol are more preferable. When the oil agent is contained in both the compositions A and B, the oil agent contained in the composition A and the oil agent contained in the composition B may be the same or different. Whether the oil agent is contained in one of the compositions A and B or both, the oil agent is discharged from the hair cosmetic produced by mixing the compositions A and B. In order to improve the properties and applicability, the hair cosmetic composition preferably contains 0.1 to 15% by mass, more preferably 0.5 to 13% by mass, and further preferably 1 to 10% by mass.

<Cationic polymer>
In the compositions A and B used for the hair cosmetics of the present invention, in order to make the discharge and application properties of the hair cosmetics produced by mixing the compositions A and B good, either or both, Furthermore, a cationic polymer can be contained. The cationic polymer refers to a polymer having a cationic group or a group that can be ionized into a cationic group, and includes an amphoteric polymer that becomes cationic as a whole. That is, as the cationic polymer, an aqueous solution containing an amino group or an ammonium group in the side chain of the polymer chain or containing a diallyl quaternary ammonium salt as a structural unit, such as a cationized cellulose derivative, a cationic starch, a cationization Examples include guar gum derivatives, diallyl quaternary ammonium salt polymers or copolymers, and quaternized polyvinylpyrrolidone derivatives. Among these, diallyl quaternary ammonium salt is included as a structural unit particularly in terms of softness during shampooing, smoothness and ease of fingering, ease of packing during drying and moisturizing effect, and stability of the agent. Polymers, quaternized polyvinyl pyrrolidone derivatives, and cationized cellulose derivatives are preferable, diallyl quaternary ammonium salt polymers or copolymers, and cationized cellulose derivatives are more preferable, diallyl quaternary ammonium salt polymers or copolymers. Most preferred.
Specific examples of the polymer or copolymer of diallyl quaternary ammonium salt include dimethyldiallylammonium chloride polymer (polyquaternium-6, such as Marquat 100; Nalco), dimethyldiallylammonium chloride / acrylic acid copolymer (polyquaternium- 22, for example, Marquat 280, 295; Nalco), dimethyldiallylammonium chloride / acrylamide copolymer (Polyquaternium-7, for example, Marquat 550; Nalco), and the like. Among these, Marcoat 280, 295 are preferred.
When the cationic polymer is contained in both of the compositions A and B, the cationic polymer contained in the composition A and the cationic polymer contained in the composition B may be the same or different. It may be. In addition, the cationic polymer may be used in combination of two or more, and the higher the content, the higher the effect, but from the viewpoint of storage stability and viscosity stability of the agent alone or at the time of mixing. Whether it is contained in one of the products A and B or both, it is preferably 0.001 to 20% by mass, more preferably 0.01 to 10% in the hair cosmetic. % By mass, more preferably 0.05 to 5% by mass.

<Silicones>
The compositions A and B used in the hair cosmetic product of the present invention can further contain silicones in order to impart a high conditioning effect to the hair. Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, oxazoline-modified silicone elastomer, and the like, and emulsions in which these are dispersed in water using a surfactant. Of these, polyether-modified silicones, amino-modified silicones, and emulsions thereof are preferable because they can be stably dispersed in water without using a thickener. When silicones are contained in both compositions A and B, the silicones contained in composition A and the silicones contained in composition B may be the same or different. Good.
When silicones are added to the hair cosmetic composition in which composition A and composition B are mixed, the silicone content is contained in both the case where the silicones are contained in one of compositions A and B. In any case, in order to give a high conditioning effect to the hair, it is preferably 2% by mass or less, more preferably 0.005 to 1% by mass, and further preferably 0. It is preferable that it is 01-0.5 mass%.

<Medium>
In one or both of the compositions A and B used in the hair cosmetic product of the present invention, water and, if necessary, an organic solvent may be used as a medium. Examples of organic solvents include lower alkanols such as ethanol and 2-propanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, polyols such as propylene glycol, 1,3-butanediol, diethylene glycol, and glycerin, ethyl cellosolve, Examples thereof include cellosolves such as butyl cellosolve and benzyl cellosolve, and carbitols such as ethyl carbitol and butyl carbitol. Whether the organic solvent is contained in one of the compositions A and B or both, the organic solvent is contained in the hair cosmetic in an amount of 0.01 to 25 mass. %, More preferably 0.05 to 15% by mass, and further preferably 0.1 to 10% by mass.

<Other optional components>
In addition to the above components, other components that are usually used as cosmetic raw materials can be added to the hair cosmetic composition of the present invention. Such optional ingredients include animal and vegetable oils and fats, natural or synthetic polymers, ethers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, Examples include herbal extracts, vitamins, fragrances, and UV absorbers.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, the comb teeth 22 of the applicator 2 in the applicator 1 used in the above embodiment are arranged in a substantially annular shape. Instead, the comb teeth 22 are arranged so as to surround the agent discharge port 21. As long as it is made, each comb tooth 22 may be in an arrangement state other than a substantially annular shape. For example, the trajectory drawn by each comb tooth 22 may be arranged so as to have an anisotropy shape such as an oval or an ellipse.

  In relation to the above-described embodiment, the present invention further discloses the following hair cosmetics and hair dyeing or decoloring method.

<1>
Composition A containing an alkali agent and a surfactant;
Composition B containing an oxidizing agent; and a viscosity at 30 ° C. produced by mixing of compositions A and B is 3 to 30 Pa · s, preferably 5 to 15 Pa · s, more preferably 7 to 13 Pa · s, and still more preferably Has a container part for storing hair cosmetics of 8.5 to 13 Pa · s, an application part for applying the hair cosmetics to a bundle of hair, and a liquid outlet channel for communicating the container part and the application part. A hair cosmetic applicator comprising an extended portion;
The hair cosmetic product having a plurality of comb teeth arranged in a substantially annular shape so that the application portion has a discharge port and a comb portion, and the comb portion surrounds the periphery of the discharge port.

<2>
When the diameter at the narrowest part in the liquid outlet channel is a (mm) and the viscosity of the hair cosmetic at 30 ° C. is b (Pa · s), the value of a / b is 0.1 to 5, The hair cosmetic according to <1>, preferably 0.2 to 4, more preferably 0.3 to 2, and still more preferably 0.4 to 1.

<3>
The ratio of the volume of the head space of the container part in the state in which the hair cosmetic is contained in the volume of the container part is c (%), and the viscosity of the hair cosmetic at 30 ° C. is b (Pa · s), the value of c / b is 0.5 to 15, preferably 0.6 to 13, more preferably 0.8 to 10, and more preferably 1 to 7 <1> or <2> Hair cosmetics described in 1.

<4>
Any one of <1> to <3>, wherein the hair cosmetic has a pH at 25 ° C. of 8.0 to 12.5, preferably 8.0 to 11.0, more preferably 8.0 to 10.5. Hair cosmetics according to one item.

<5>
<1> to <4>, wherein the hair cosmetic applicator has a total length of 5 to 40 cm, preferably 10 to 40 cm, more preferably 15 to 30 cm, and still more preferably 20 to 25 cm. Hair cosmetics.

<6>
Furthermore, the hair cosmetic according to any one of <1> to <5>, wherein the composition A contains a dye.

<7>
<1> to <6> containing 0.1 to 40% by mass, preferably 0.5 to 30% by mass, more preferably 1 to 20% by mass of a surfactant in the hair cosmetic. Hair cosmetics described in 1.

<8>
The hair cosmetic according to any one of <1> to <7>, wherein the surfactant includes a cationic surfactant and a nonionic surfactant.

<9>
The hair cosmetic according to any one of <1> to <8>, further comprising an oil in the hair cosmetic.

<10>
Furthermore, the hair cosmetic according to any one of <1> to <9>, wherein the hair cosmetic contains a cationic polymer.

<11>
Furthermore, the hair cosmetic according to any one of <1> to <10>, wherein the hair cosmetic contains silicones.

<12>
The composition A may be a liquid body, a cream body or a paste body, or a powder body, preferably a liquid body or a cream body, and more preferably a liquid body <1. > Or <11> The hair cosmetic according to any one of <11>.

<13>
The hair cosmetic according to any one of <1> to <12>, wherein the composition A contains a carbonate or bicarbonate as an alkaline agent.

<14>
The proportion of the alkali agent in the composition A is preferably 1 to 50% by mass, more preferably 1.2 to 30% by mass, still more preferably 1.5 to 20% by mass. The hair cosmetic product according to <13>, more preferably ˜15% by mass.

<15>
The composition B may be a liquid or a cream or paste, but is preferably a liquid or a cream, more preferably a liquid <1> to <14. > Hair cosmetics according to any one of the above.

<16>
The ratio of the oxidizing agent in the composition B is preferably 0.1 to 15% by mass, more preferably 0.5 to 12% by mass, still more preferably 1 to 10% by mass. The hair cosmetic according to any one of <1> to <15>, more preferably from 10 to 10 % by mass .

<17>
A container body having a bottomed cylindrical outer container capable of being squeezed, and an inner bag that is disposed in the outer container and whose mouth is airtightly joined to the inner surface of the cylindrical mouth of the outer container; The hair cosmetic according to any one of <1> to <16>, which is a double-structured container comprising a connection cap with a check valve attached to the mouth of the container body.

<18>
The value of the diameter a of the liquid outlet path itself is preferably 2 to 50 mm, more preferably 3 to 30 mm, still more preferably 3 to 15 mm, and still more preferably 5 to 10 mm, according to <1> to <17>. Hair cosmetics.

<19>
The hair cosmetic product according to <3>, wherein the volume ratio c of the head space is preferably 5 to 90%, more preferably 10 to 80%, and still more preferably 15 to 70%.

<20>
The height of the comb teeth is preferably 5 to 30 mm, more preferably 5 to 20 mm, still more preferably 7 to 17 mm,
The inner diameter L4 of the circular line through which the cross-sectional center of the base end portion of the comb teeth circumscribes is preferably 5 to 30 mm, more preferably 5 to 20 mm, still more preferably 5 to 15 mm, and still more preferably. 8-13mm,
The width W of the comb teeth is preferably 0.1 to 5 mm, more preferably 0.1 to 3 mm, and even more preferably 0.5 to 2.5 mm, any one of <1> to <19> Hair cosmetics according to claim 1.

<21>
Composition A containing an alkali agent and a surfactant;
Composition B containing an oxidant; and a viscosity at 30 ° C. of 3 to 30, preferably 5 to 15 Pa · s, more preferably 7 to 13 Pa · s, more preferably 8 resulting from mixing of compositions A and B .5-13 Pa · sPa · s container for accommodating hair cosmetic, application part for applying the hair cosmetic to a bundle of hair, and liquid outlet for communicating the container and the application part A hair cosmetic applicator comprising an extension portion, wherein the application portion has a discharge port and a comb portion, and the comb portion is substantially annular so as to surround the discharge port. A hair dyeing or decoloring method using a hair cosmetic product having a plurality of comb teeth arranged in
A hair coloring or decoloring method comprising the following steps 1) to 3).
1) The process which mixes the said compositions A and B in the said container part, and produces the said hair cosmetics in this container part.
2) Using the hair cosmetic applicator in a state in which the container containing the hair cosmetic, the application part, and the extension part are assembled, and through the liquid lead-out path of the extension part, Supplying the hair cosmetic from the container to the application unit.
3) The process of apply | coating the said hair cosmetics supplied to the said application part to hair.

<22>
After the compositions A and B are put in the container part, the opening part of the container part is closed with a closing member or the extension part, and the compositions A and B are put under the closed state. The hair dyeing or decoloring method according to <21>, wherein the hair is mixed in the container.

<23>
Furthermore, the method for dyeing or decoloring hair according to <21> or <22>, wherein the composition A contains a dye.

<24>
<21> thru | or <23> which contains 0.1-40 mass%, Preferably 0.5-30 mass%, More preferably, 1-20 mass% of surfactant is contained in the said hair cosmetics. The hair dyeing or decoloring method of hair described in 1.

<25>
The hair dyeing or decoloring method of hair according to any one of <21> to <24>, wherein the surfactant includes a cationic surfactant and a nonionic surfactant.

<26>
Furthermore, the hair dyeing or decoloring method according to any one of <21> to <25>, wherein the hair cosmetic contains an oil agent.

<27>
Furthermore, the hair coloring or decoloring method according to any one of <21> to <26>, wherein the hair cosmetic contains a cationic polymer.

<28>
Furthermore, the hair coloring or decoloring method according to any one of <21> to <27>, wherein the hair cosmetic contains silicones.

<29>
The composition A may be a liquid, a cream or paste, or a powder, preferably a liquid or a cream, more preferably a liquid <21 > The hair dyeing or decoloring method according to any one of <28>.

<30>
The hair dyeing or decoloring method for hair according to any one of <21> to <29>, wherein the composition A contains carbonate or bicarbonate as an alkaline agent.

<31>
The proportion of the alkali agent in the composition A is preferably 1 to 50% by mass, more preferably 1.2 to 30% by mass, still more preferably 1.5 to 20% by mass. The hair dyeing or decoloring method for hair according to <30>, more preferably ˜15% by mass.

<32>
The composition B may be a liquid or a cream or paste, but is preferably a liquid or a cream, more preferably a liquid <21> to <31. > The method for dyeing or decoloring hair according to any one of the above.

<33>
The ratio of the oxidizing agent in the composition B is preferably 0.1 to 15% by mass, more preferably 0.5 to 12% by mass, still more preferably 1 to 10% by mass. The hair dyeing or decoloring method of hair according to any one of <21> to <32>, more preferably 10 % by mass .

<34>
A container body having a bottomed cylindrical outer container capable of being squeezed, and an inner bag that is disposed in the outer container and whose mouth is airtightly joined to the inner surface of the cylindrical mouth of the outer container; <21> thru | or the decoloring method of the hair as described in any one of <33> which is a container of the double structure which consists of a connection cap with a non-return valve attached to the mouth part of a container main body.

<35>
Any one of <21> to <34>, wherein the value of the diameter a of the liquid outlet path is preferably 2 to 50 mm, more preferably 3 to 30 mm, still more preferably 3 to 15 mm, and still more preferably 5 to 10 mm. The method for dyeing or decoloring hair according to one item.

<36>
When the ratio of the volume of the head space of the container part in the state where the hair cosmetic is accommodated in the volume of the container part is c (%), the ratio c of the volume of the head space is preferably The hair dyeing or decoloring method of hair according to any one of <21> to <35>, which is 5 to 90%, more preferably 10 to 80%, and still more preferably 15 to 70%.

<37>
The height of the comb teeth is preferably 5 to 30 mm, more preferably 5 to 20 mm, still more preferably 7 to 17 mm,
The inner diameter L4 of the circular line through which the cross-sectional center of the base end portion of the comb teeth circumscribes is preferably 5 to 30 mm, more preferably 5 to 20 mm, still more preferably 5 to 15 mm, and still more preferably. 8-13mm,
The width W of the comb teeth is preferably 0.1 to 5 mm, more preferably 0.1 to 3 mm, and even more preferably 0.5 to 2.5 mm, any one of <21> to <36> The hair dyeing or decoloring method according to claim 1.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

[Example 1]
Compositions A and B having the compositions shown in Table 1 below were prepared. Each composition was independently contained in a separate container. The container for storing the composition A was a bottle having a volume of 37 cm ³ , and 40 g of the composition A was stored therein. The container for storing the composition B was a bottle having a volume of 149 cm ³ , and 60 g of the composition B was stored therein. The bottle containing the composition B has the same shape and structure as the container indicated by reference numeral 4 in FIG. 1 and is disposed in the outer container having a bottomed cylindrical shape that can be squeezed. In addition, the mouth part was made of a resin having a double structure having an inner bag hermetically joined to the inner surface of the cylindrical mouth part of the outer container.

  The bottle containing the composition A was opened, and the composition A was put in the bottle containing the composition B. The bottle was shaken with the bottle closed to facilitate mixing. In this way, compositions A and B were thoroughly mixed to give a hair cosmetic. The ratio of the head space to the bottle volume at this time is as shown in Table 2. The viscosity at 30 ° C. and the pH at 25 ° C. of the hair cosmetic 3 were as shown in Table 2.

  Next, the bottle in which the hair cosmetic 3 is accommodated is opened, and a member in a state where the connection cap 45, the extension portion 5 and the application portion 2 in FIG. The applicator 1 was completed. The dimensions of the extension part 5, the application part 2 and the container part 4 are as shown in Table 2.

  The container part 4 is held and squeezed, and the hair cosmetic 3 is supplied from the container part 4 to the application part 2 via the extension part 5 and held in the region surrounded by the plurality of comb teeth 22 of the application part 2. It was. The application part 2 was applied to the root part of the hair of the mannequin head and moved in the direction of the hair tip to apply the hair cosmetic 3. At this time, when the hair cosmetic 3 held in the application part 2 is used up in the middle of application and cannot be applied to the hair tip, the container part 4 is lightly squeezed in the middle of application and the hair cosmetic 3 is applied to the application part. Coating was performed while feeding.

  The above operations are carried out by 10 panelists who have abundant experience in hair dyeing and decolorization, etc., and the ease of mixing of each composition, the ease of discharging the hair cosmetic 3 and the ease of application. In addition, each item of easiness of extending and difficulty of dripping was evaluated as to whether it was considered acceptable or rejected as a product for general consumers. And among 10 panelists, 8 or more evaluated as acceptable. The results are shown in Table 2 below.

  As is apparent from the results shown in Table 2, it can be seen that the hair cosmetic product of this example is easy to mix each composition. It can also be seen that the hair cosmetic 3 can be easily discharged and applied. Furthermore, it can be seen that the hair cosmetic 3 can be easily applied in the application operation of the hair cosmetic 3 and is difficult to sag.

[Example 2]
Compositions A and B shown in Table 3 below were prepared. A hair cosmetic was applied in the same manner as in Example 1 except that these compositions were used. The application is carried out by 10 panelists who have abundant experience in hair dyeing and decolorization, etc., and these panelers can easily put out the hair cosmetic from the container, and can easily hold the hair cosmetic in the application part. And from the viewpoint of ease of application of the hair cosmetic. The evaluation method is as follows. The results are shown in Table 4 below. In addition, the measurement of the viscosity of hair cosmetics was performed by the method mentioned above according to the value of the viscosity.

[Ease of taking out hair cosmetics from containers]
By grasping the container part 4 by hand, the ease of discharge when the hair cosmetic was discharged from the agent discharge port 21 was evaluated according to the following criteria.
A: Hair cosmetics can be easily discharged just by grasping the container part 4 with one hand.
B: When the container part 4 is firmly held with one hand, the hair cosmetic can be discharged.
C: When the container part 4 is held with both hands, the hair cosmetic can be discharged.

[Ease of holding hair cosmetics at the application part]
By grasping the container part 4 by hand, the ease of holding the hair cosmetic in the application part 2 when discharging the hair cosmetic from the agent discharge port 21 was evaluated according to the following criteria.
A: The hair cosmetic can be filled up to the tips of the comb teeth 22 without the hair cosmetic dripping from the application part 2.
B: Hair cosmetic material leaks from the gaps between the comb teeth 22.
C: Since hair cosmetics cannot be accommodated in the application part 2, it cannot be evaluated.

[Ease of applying hair cosmetics]
Wigs (average hair diameter of about 50 μm, hair density of 150 / cm ² ) manufactured by Beaulux Co., Ltd. were cut so that the hair length was 30 cm. By grasping the container part 4 by hand, the hair cosmetic was discharged from the agent discharge port 21, and the ease of application when the hair cosmetic was applied from the root to the tip of the wig was evaluated according to the following criteria. .
A: The hair cosmetic can be uniformly applied from the root to the hair tip (30 cm).
B: The hair cosmetic can be uniformly applied from the root to the middle of the hair (less than 30 cm).
C: Although hair can be applied from the root of the hair cosmetic, it cannot be applied uniformly.
D: Since hair cosmetics cannot be accommodated in an application part, it cannot apply.

[Examples 3 to 5 and Comparative Example 1]
The hair cosmetic was applied in the same manner as in Example 2 except that the ratio between the composition A and the composition B in the hair cosmetic was changed to the value shown in Table 4, and the same evaluation as in Example 2 was performed. . The results are shown in Table 4.

  As is apparent from the results shown in Tables 3 and 4, according to Examples 2 to 5, it can be seen that the hair cosmetic can be successfully applied. On the other hand, it can be seen that in Comparative Example 1 in which the viscosity of the hair cosmetic is excessively low, inconvenience occurs in the application.

DESCRIPTION OF SYMBOLS 1 Hair cosmetics applicator 2 Application part 21 Agent discharge port 22 Comb tooth 3 Hair cosmetics 4 Container part 41 Container main body 45 Connection cap 5 Extension part 51 Liquid outflow path

Claims (19)

Composition A containing an alkali agent and a surfactant;
A composition B containing an oxidant; and a container portion containing hair cosmetics having a viscosity of 3 to 30 Pa · s at 30 ° C. produced by mixing the compositions A and B; and the hair cosmetics in a bundle of hair applying unit for applying, and the container portion and the coating cloth portion Metropolitan communicated, and constituted hair cosmetic applicator diameter Saisema portion from the extension portion having a 5~15mm der Ru fluid outlet passage; includes a Hair cosmetics that
Composition A and Composition B are each independently contained in separate containers,
A container body having an outer container and an inner bag disposed in the outer container, the mouth of which is hermetically joined to the inner surface of the cylindrical mouth of the outer container; and the mouth of the container body It is a double structure consisting of a connection cap with a check valve attached to the neck,
Coating portion has a discharge port and comb, comb part, have a plurality of comb teeth arranged substantially annular so as to surround the periphery of the spout,
From the connection is not covered with the cap portion in the outer container of the container unit, comprising a liquid outlet path, the hair cosmetic Ru distance L 40~200mm der up comb portion.   When the diameter at the narrowest part in the liquid lead-out path is a (mm) and the viscosity of the hair cosmetic at 30 ° C. is b (Pa · s), the value of a / b is 0.1 to 5. The hair cosmetic according to claim 1.   The ratio of the volume of the head space of the container part in the state in which the hair cosmetic is contained in the volume of the container part is c (%), and the viscosity of the hair cosmetic at 30 ° C. is b (Pa · The hair cosmetic product according to claim 1 or 2, wherein c / b is 0.5 to 15 when s).   The hair cosmetic according to any one of claims 1 to 3, wherein the hair cosmetic has a pH of 8.0 to 12.5 at 25 ° C.   The hair cosmetic product according to any one of claims 1 to 4, wherein the hair cosmetic applicator has a total length of 5 to 40 cm.   The hair cosmetic according to any one of claims 1 to 5, further comprising a dye in the composition A.   The hair cosmetic according to any one of claims 1 to 6, wherein the hair cosmetic contains 0.1 to 40% by mass of a surfactant.   The hair cosmetic according to any one of claims 1 to 7, wherein the surfactant comprises a cationic surfactant and a nonionic surfactant.   Furthermore, the hair cosmetics as described in any one of Claim 1 thru | or 8 which contain an oil agent in the said hair cosmetics.   The hair cosmetic according to any one of claims 1 to 9, further comprising a cationic polymer in the hair cosmetic.   The hair cosmetic according to any one of claims 1 to 10, further comprising silicones in the hair cosmetic. Composition A containing an alkali agent and a surfactant;
A composition B containing an oxidant; and a container portion containing hair cosmetics having a viscosity of 3 to 30 Pa · s at 30 ° C. produced by mixing the compositions A and B; and the hair cosmetics in a bundle of hair applying unit for applying, and the container portion and the coating cloth portion Metropolitan communicated, and constituted hair cosmetic applicator diameter Saisema portion from the extension portion having a 5~15mm der Ru fluid outlet passage; includes a A hair cosmetic product having a plurality of comb teeth in which the application portion has a discharge port and a comb portion, and the comb portion is arranged in a substantially annular shape so as to surround the periphery of the discharge port. A method for dyeing or decoloring hair,
The hair cosmetic has a distance L from the portion not covered by the connection cap in the outer container of the container part to the comb part including the liquid lead-out path is 40 to 200 mm,
A hair coloring or decoloring method comprising the following steps 1) to 4).
1) The process which mixes the said compositions A and B in the said container part, and produces the said hair cosmetics in this container part.
2) Using the hair cosmetic applicator in a state in which the container containing the hair cosmetic, the application part, and the extension part are assembled, and through the liquid lead-out path of the extension part, Supplying the hair cosmetic from the container to the application unit.
3) A step of discharging the hair cosmetic from the discharge port and accumulating the hair cosmetic inside the comb portion.
4) The process of apply | coating the said hair cosmetics stored inside the said comb part to hair.   After the compositions A and B are put in the container part, the opening part of the container part is closed with a closing member or the extension part, and the compositions A and B are put under the closed state. The method for dyeing or decoloring hair according to claim 12, wherein the hair is mixed in the container.   Furthermore, the hair dyeing or decoloring method of the hair of Claim 12 or 13 which contains dye in composition A.   The hair dyeing or decoloring method according to any one of claims 12 to 14, wherein the hair cosmetic contains 0.1 to 40% by mass of a surfactant.   The hair dyeing or decoloring method of hair according to any one of claims 12 to 15, wherein the surfactant includes a cationic surfactant and a nonionic surfactant.   Furthermore, the hair coloring or decoloring method of the hair as described in any one of Claims 12 thru | or 16 which contains an oil agent in the said hair cosmetics.   Furthermore, the hair dyeing or decoloring method of the hair as described in any one of Claim 12 thru | or 17 which contains a cationic polymer in the said hair cosmetics.   Furthermore, the hair coloring or decoloring method of the hair as described in any one of Claims 12 thru | or 18 which contains silicones in the said hair cosmetics.

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