JPH1073584A - Method and device for evaluating cleaning process - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evaluate a cleaning process conformably to the evaluation of the foaming property of a cleaning agent, such as the shampoo, etc., when the cleaning agent is actually used including the time factors of bubbling time, foaming speed, and foam disappearing speed, etc., of the cleaning agent by evaluating the foaming property with a measurement system in a state which is close to the actual service condition. SOLUTION: The foaming property of a cleaning agent is evaluated by applying the cleaning agent to hair 1 and collecting foams produced while the hair 1 is rubbed with each other by using projecting objects 21 and 22 in a weighing instrument, and then, measuring the quantity of the collected foams. Then the foam disappearing property of the cleaning agent is evaluated by again measuring the quantity of foams after pouring water to the hair 1. Finally, the lubricating ability of the cleaning agent is evaluated by measuring the moving torques of the projecting objects 21 and 22 while the hair 1 is rubbed with each other by using the objects 21 and 22 after the cleaning agent is rinsed off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention simulates a condition in which a cleaning agent such as shampoo or a hair treatment agent such as a rinse is applied to hair and the like, and the foaming property and the lubricity such as squeaking are evaluated with time. The present invention relates to a method for evaluating a cleaning process which enables an evaluation and an apparatus used for the method.

[0002]

2. Description of the Related Art Conventionally, methods for evaluating the foaming property of a solution of a surfactant or the like include, for example, (1) Pouring
Method, (2) Beating method, (3) Rotating method,
(4) Stirring method, (5) Bubbling method,
(6) The Shaking method and the like are known.

[0003] Among them, the (1) Pouring method is a method in which a sample solution is dropped into a container and the amount of bubbles generated thereby is measured. This method has a problem that the foaming properties of a low-foaming liquid or a dilute solution cannot be practically evaluated. As an evaluation method based on this measurement principle, there are a Ross-Miles method and a water flash method, which are used in ASTM standard, JIS standard and ISO standard.

(2) The Beating method is a method in which a sample solution in a container is stirred by moving a disk with holes up and down, and the amount of bubbles generated by the stirring is measured. This method has a problem that the apparatus becomes large-scale and that only a dilute solution can be evaluated. As an evaluation method based on this principle, there are a plunger method, a sheep stirring method, a friction foaming method and the like, which are used in the DIN standard.

(3) In the Rotating method, a sample solution is placed in a measuring cylinder, the stopper is placed, the measuring cylinder is placed horizontally, the center of the measuring cylinder is supported by a shaft, and this is rotated by a motor around a rotation center. This is a method for measuring the amount of foam generated by the above method. This method is easy to assemble and operate the device, but has a problem that the measurable foam amount is limited to less than the effective volume of the measuring cylinder, and also has difficulty in controlling the temperature. As an evaluation method based on this principle, B
There is an eh and James method.

(4) The Stirring method is a method in which a sample solution is placed in a graduated container, and the amount of bubbles generated by rotating a rotor in the sample solution is measured. This method is suitable for evaluating the foaming property of a low-viscosity solution under high shear conditions, but has a problem that it is not suitable for evaluating a low-foaming surfactant. As an evaluation method based on this principle, Hart and DeGeorg
e method, inverted stirring method and the like.

(5) In the Bubbling method, a surfactant is foamed with nitrogen in a spherical vessel, and the surfactant is transferred to a graduated vessel. This is a method for measuring the volume and weight, the weight of the discharged liquid, and the like. According to this method, a lot of qualitative or quantitative information can be obtained, but there is a problem that the reproducibility between the devices is low because the devices and operating conditions are complicated. As an evaluation method based on this principle, Moldov
anyi, Hungerbuhler and Lang
There is a law.

(6) The Shaking method is a method in which a container containing a sample solution is vibrated up and down or left and right by hand, and the amount of bubbles generated thereby is measured. Although this method can be performed with a simple device, there is a problem that a measurement error is large because the container is vibrated by hand. As an evaluation method based on this principle, there is the Stiepel method.

[0009]

As described above, various methods have conventionally been known as methods for evaluating the foaming property of a surfactant solution. However, any method is known in which the solution itself is stirred or vibrated. Therefore, the foaming property of a cleaning agent such as shampoo, soap and body shampoo cannot be sufficiently evaluated. That is, shampoo is applied to the hair and foamed by rubbing the hair by hand, and soap or body shampoo is also applied to a washing medium such as sponge or towel and rubbed against the body to wake up. In any case, the object using the cleaning agent greatly affects the foaming property. In this case, not only the type of the object for which the cleaning agent is used, but also the degree of dirt and the like greatly affects the foaming property.

[0010] However, in the conventional method for evaluating foaming properties, the factor of an object using a cleaning agent such as hair, sponge, and towel is lacking. For this reason, good consistency between the conventional foaming evaluation result and the foaming evaluation during actual use may not be obtained.

Further, in the conventional evaluation method, there is a problem that a change with time of the foaming cannot be observed, and it is impossible to obtain an evaluation consistent with the evaluation of the actual foaming property.

The present invention is intended to solve the above-mentioned problems of the prior art, and evaluates the foaming properties of detergents such as shampoos, soaps, body shampoos, and the like by using a measurement system that is close to an actual use state. Furthermore, it is possible to make observations that include time factors such as the time when foam starts to form, the rate at which foam is generated, and the rate at which foam disappears, and obtain an evaluation that matches well with the evaluation of foaming properties during actual use. It is an object of the present invention to provide a method for evaluating foaming properties and an apparatus used therefor.

Further, the present invention is a measuring system which is close to the actual use state, and not only can evaluate the foaming property of a cleaning agent such as shampoo, but also can simulate the entire cleaning process. Evaluation of lubricity such as the degree of squeaking of hair at the time, evaluation of defoaming properties upon rinsing after lathering a cleaning agent such as shampoo, and application of hair treatment agents such as rinse, hair treatment, hair color etc. after washing with water An object of the present invention is to make it possible to favorably evaluate the lubricity of hair at the time of doing.

[0014]

According to the present inventors, the evaluation of the foaming property of a cleaning agent such as a shampoo is carried out not by simply stirring and vibrating the cleaning agent, but by the evaluation and measurement system. Introduce the object to be used when the cleaning agent is used in a normal state, for example, hair, sponge, body brush, etc., slide this and the protrusion, and foam in a state close to the actual use state. It can be performed more favorably, and the evaluation of the defoaming property can also be performed better by foaming the detergent in a state close to the actual use state and then pouring water. Lubricity, such as the degree of finger movement and squeaking of the hair when the treatment agent is applied, should be determined by using the evaluation and measurement system close to the actual use condition as described above to determine the torque when sliding the hair and the protrusion. Better With the use of such an evaluation measurement system, the entire hair washing process can be well simulated from the start of hair washing to the end of the operation of applying a treatment agent such as a rinse, and observation of each process can be performed. The inventors have found that the present invention can be evaluated, and have completed the present invention.

That is, first, according to the present invention, a cleaning agent is applied to an object using the cleaning agent, and the object and the projection are slid, whereby the foam generated is collected in a measuring instrument. And a method for evaluating the foaming property, wherein the foaming amount is measured.

Secondly, the present invention provides a method for applying a cleaning agent or a hair treatment agent to an object to which the cleaning agent or the hair treatment agent is applied, wherein the object and the protrusion are applied at or after the application of the cleaning agent or the hair treatment agent. Provided is a method for evaluating lubricity of a cleaning agent or a hair treatment agent, wherein a lubrication property is measured while sliding an object.

Third, the present invention applies a cleaning agent to an object using the cleaning agent, slides a projection on the object,
The defoaming property evaluation method is characterized in that the foam thus generated is collected in a measuring instrument, the foam amount is measured, the foam amount is measured, water is poured into an object, and the foam amount is measured again. I do.

Fourth, the present invention is to measure the amount of foam by applying a cleaning agent to the hair, sliding the hair and the projections, and collecting the foam generated by the measuring instrument. To evaluate the foaming property, then water was poured into the hair, and the foam was evaluated again to evaluate the defoaming property of the foam.After washing the detergent with water, sliding the protrusions on the hair, Provided is a method for evaluating a hair cleaning step, which comprises evaluating the lubricity of a cleaning agent by measuring torque during sliding.

Fifthly, the present invention provides, as an apparatus used for carrying out the method for evaluating foamability or defoaming property of the present invention, a container for accommodating an object using a cleaning agent and an object accommodated in the container. A projection that comes into contact with an object, a measuring device that measures foam generated in the container, a lid that covers the container and guides the foam generated in the container to the measuring device, an object stored in the container, and a container lid. The present invention provides a cleaning process evaluation device, characterized in that a motor for moving an object or a projection housed in a container is provided so that the container slides.

Sixth, the present invention provides, as an apparatus for carrying out the lubricity evaluation method of the present invention, a container for accommodating an object using a cleaning agent or a hair treatment agent, a projection for contacting the object contained in the container. An object, a motor for moving an object or a projection contained in a container such that the object and a projection contained in the container slide, and a torque detecting means for measuring a torque at the time of the sliding are provided. A cleaning process evaluation apparatus is provided.

Seventh, the present invention provides a device for performing the method for evaluating a hair washing step, which includes a container for accommodating hair using a cleaning agent or a hair treatment agent, a projection in contact with the hair contained in the container, and an inside of the container. A measuring device for measuring the foam generated in the container, a lid that covers the container and guides the foam generated in the container to the measuring device, and stored in the container so that the hair and the protrusions stored in the container slide. A motor for moving the hair or protrusions provided, and a torque detecting means for measuring a torque at the time of the sliding, to provide a hair washing process evaluation device.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method and an apparatus according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall explanatory view of a cleaning process evaluation apparatus of the present invention which can carry out the foaming evaluation method, lubricity evaluation method, defoaming evaluation method and hair cleaning process evaluation method of the present invention. It is.

The apparatus shown in FIG. 1 includes a container 10, a container lid 20, a control unit 40 containing a motor 30, a measuring device 50, and a torque detector 60.

The container 10 is a cylindrical container having a drain port (not shown) on the bottom surface and an open top surface, and is formed of transparent plastic so that the inside can be observed well. In the container 10, for example, as shown in FIG. 2, a material in which the hair 1 is planted at a plurality of points P in the disk 11 can be attached. Here, the hair 1 includes human hair, animal hair, and hair made of natural or synthetic fibers.

As shown in FIG. 1, the container 10 has a control unit 40 having a motor 30 built therein.
Mounted on top, the container 30 is rotated by the motor 30 as shown by the arrow x, whereby the hair 1 in the container 10 is also rotated.

The lid 20 is also made of a transparent plastic, as shown in FIG.
As shown by the arrow y, the upper surface of the container 10 is covered. Two types of protrusions 21 and 22 are formed on the back surface of the lid 20, that is, the surface that becomes the inside of the container 10 when put on the container 10. Among these, the first projection 21 corresponds to a finger of a person rubbing the hair during hair washing, and the second projection 22 corresponds to a brush used during hair washing. When the lid 20 is placed on the container 10, the first protrusion 21 and the second protrusion 22
Is provided so as to be in contact with.

The lid 20 contains a cleaning agent or a hair treatment agent in the container 1.
A funnel-shaped injection hole 25 is provided to facilitate application to the hair 1 in the 0.

When the lid 20 is put on the upper surface of the container 10, the lid 20 is not fixed to the container 10, but is attached to a column 41 standing upright on the control unit 40.
And a measuring device 50. Therefore, the lid 20 is put on the container 10 and these projections 2
When the container 10 is rotated while the hairs 1 and 22 are in contact with the hair 1, the hair 1 in the container 10 and the projections 21 and 22 are rotated.
Slides. Therefore, when the lid 20 is put on the container 10 and a cleaning agent such as shampoo is applied to the hair 1 through the injection hole 25,
The cleaning agent can be foamed in a state close to the actual hair washing, and the foaming state at this time can be observed.

In the apparatus shown in FIG. 1, a first protrusion 21 corresponding to a finger of a person and a second protrusion 22 corresponding to a brush for washing hair are provided as protrusions for sliding with hair. However, in the present invention, the protrusions are not limited to these, and one or a plurality of protrusions having various shapes can be provided. Further, in the apparatus shown in FIG. 1, the projections 21 and 22 are formed integrally with the lid 20 on the back surface of the lid 20, but in the present invention, the projections may be provided separately from the lid.

The lid 20 has an opening at the center, to which a measuring instrument 50 is connected. Therefore, as described above, the hair 1
Is applied to the hair, and the hair 1 and the protrusions 21 and 22 are slid to generate foam in the container 10.
A spiral band-shaped foam guide wall 23 is formed on the back surface of the lid 20 so as to be smoothly led to zero. In addition, a hair wrap prevention pin 24 is formed to prevent the hair 1 from being wrapped into the measuring instrument 50.

The measuring device 50 measures the volume of foam generated in the container 10, and is composed of a transparent cylindrical body with a scale.

A water injection hole 51 is provided in the upper part of the measuring device 50. The water injection hole 51 is provided for observing the defoaming state when water is applied to the hair 1 after foaming the cleaning agent in the container 10, and it is possible to spray water like a shower. Has become.

Further, a torque detector 60 is provided above the measuring device 50. The torque detector 60 measures a rotation torque when the container 10 is rotated.

In the method of using the apparatus shown in FIG. 1, when the foaming property of a cleaning agent such as a shampoo is evaluated, the container 10 is used.
The cleaning agent is applied from the injection hole 25 while the is rotated, or the lid 20 is removed from the container 10 and the cleaning agent is applied to the hair 1.

In the evaluation of the foaming property, the hair 1 may be previously soiled by a predetermined method. This makes it possible to evaluate the foaming property of the cleaning agent on dirty hair. In addition, the hair 1 may be moistened in advance according to an appropriate method of using the cleaning agent. Further, the form of the cleaning agent is a solution, a cream, a gel,
The cleaning agent may be applied to the hair 1 in any form, such as powder, by applying, spraying, spraying, or the like according to the form of the cleaning agent.

After the cleaning agent is applied to the hair 1, the lid 20 is covered, the first projection 21 and the second projection 22 are brought into contact with the hair 1, and the motor 30 is driven to rotate the container 10. Let it. As a result, the cleaning agent used for the hair 1 is foamed in a state close to the actual hair washing conditions. Then, the water is guided by the foam guiding wall 23 and collected in the measuring device 50.
Therefore, the state in which bubbles are collected by the measuring device 50 is observed and evaluated. In this case, the amount of collected bubbles should be recorded over time, and the time from the start of sliding until the bubbles enter the measuring device 50, the amount of bubbles after a certain period of time, the maximum amount of bubbles, and the like should be recorded. Is preferred. Thereby, it is possible to observe and evaluate the speed of foaming at the start of use of the detergent (rapid foaming property), the speed of foam formation, the maximum amount of foam, the foaming power, and the like.

Further, while the hair 1 and the projections 21 and 22 are being slid, the torque detector 60 detects the rotational torque. From the detected values, it is possible to evaluate the lubricity of the hair, that is, the slippage of the finger at the time of shampooing, the smoothness of the hair, the squeaking and the like.

After the foaming property and lubricity are evaluated in this manner, a predetermined amount of water is injected from the water injection hole 51. In this case, it is preferable that the container 10 be continuously rotated.

The bubbles disappear due to the water injection. In the present invention, it is preferable that the amount of the bubbles at this time is also measured with the measuring device 50 over time. This makes it possible to observe and evaluate the disappearing state of the bubbles over time, and for example, it is possible to evaluate the defoaming properties of the shampoo, such as the rinsing property and the foam removing property.

After pouring the hair and thoroughly washing the foam,
A predetermined amount of rinse, conditioner, treatment, hair foam, hair spray, hair dye,
Apply a hair treatment agent such as a hair restorer. The application of the hair treatment agent may be performed by removing the lid 20 as necessary. After application of the hair treatment agent, the hair can be rinsed with water as needed. This water injection can also be performed by injecting water from the water injection hole 51.

In the application of the hair treatment agent, if the torque is detected by the torque detector 60 in the same manner as in the measurement and evaluation of the foaming property, slipping and smoothness of the hair during or after application of the hair treatment agent are performed. The lubricity such as creaking can be evaluated.

As described above, according to this apparatus, a series of hair washing steps such as hair washing, rinsing, and hair treatment by rinsing, etc. are performed in a state close to the actual state when the cleaning agent or the hair treatment agent is applied. Simulation, foaming, defoaming,
Lubricity and the like can be measured and evaluated. In addition, since measurement and observation can be performed over time, for example, regarding the foaming property, not only the foam amount after foaming by a predetermined method, but also the foaming speed at the start of use of the detergent ( The foaming property can be measured and evaluated from various aspects such as the rapid foaming property), the subsequent foam generation rate, the maximum amount of foam, and the foaming power.

Although the apparatus and method of the present invention have been described based on the apparatus of FIG. 1, the present invention can take various other forms.

For example, as an object using a cleaning agent,
Although the hair 1 is installed in the container 10 in the apparatus shown in FIG. 1, the object can be appropriately selected according to the type of the cleaning agent.
For example, when evaluating the foaming properties of a body shampoo, a soap, or the like as a cleaning agent, a sponge, a body brush, a towel, a polisher, or the like can be placed in the container 10 as an object to use the cleaning agent.

In the apparatus shown in FIG. 1, the object to which the cleaning agent or the hair treatment agent has been applied slides on the projection.
Although the container on which the object is placed is rotated by the motor, the protrusion may be rotated without rotating the object.
In addition, the form of movement of the object and the protrusion in sliding contact with each other is not limited to the rotational movement, and may be a reciprocating movement.

In the apparatus shown in FIG. 1, the foam guide wall 23 is provided on the lid 20 in order to guide the foam generated in the container 10 to the measuring device 50. The method of deriving the check valve is not limited to this, and a check valve may be used. For example, a one-way valve can be provided in the measuring device 50. At this time, it is preferable to provide a plate-like foam guiding wall at several places so that bubbles gather at the center of the lid 20.

Further, in the apparatus shown in FIG. 1, a measuring device 5 is used to evaluate lubricity such as smoothness and squeakiness of hair as in the case of cleaning an object or applying a hair treatment agent.
A torque detector 60 is attached above the zero and the torque at the time of sliding is detected. For the detection of the torque at the time of sliding, the container or the projection is provided without such a torque detector 60. A motor having a servo mechanism for keeping the rotation speed constant may be used as the motor to be rotated, and the drive current of the motor at that time may be detected, and this may be used as an index of lubricity as a torque during sliding.

The apparatus shown in FIG. 1 simulates a series of hair washing steps of hair treatment such as hair washing, rinsing, and rinsing, and provides foaming properties, defoaming properties, hair lubricity, etc. in each step. Was configured as an apparatus capable of measuring and evaluating, but in the present invention, some of these can be omitted as necessary. For example, when the device of the present invention is not used for evaluation of foaming or defoaming properties but can be used for evaluation of lubricity, a part for measuring foam generated in a container is unnecessary. Yes, it is possible to omit the measuring device and the mechanism for leading the foam to the measuring device. When the apparatus shown in FIG. 1 is not used for evaluation of lubricity but can be used for evaluation of foaming property or defoaming property, the torque detecting means can be omitted.

[0050]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments.

Example 1, Comparative Example 1, and Reference Example The foaming property evaluation method and the lubricating property evaluation method of the example using the apparatus of the present invention shown in FIG. The following model shampoos A and B were used to evaluate the foamability and the sensory evaluation using actual shampoos as reference examples.
Performed as follows using B and C.

Model shampoo used Shampoo A: 18 parts of sodium salt of polyoxyethylene (2.5) lauryl ether sulfate as a main component
Shampoo B containing 12% by weight of sodium salt of polyoxyethylene (2.5) lauryl ether sulfate as a main component
Shampoo C: 27% sodium salt of polyoxyethylene (2.5) lauryl ether sulfate as a main component
% By weight

(1) Method for Evaluating Foaming Property of Example In the apparatus shown in FIG. 1, a hair 1 in which 30 g of 90 mm hair was implanted on a disk 11 having a diameter of about 160 mm was used. The container 10 has a diameter of 160 mm and a height of 220 m.
m, and the lid 20 is provided with three cylindrical projections having a diameter of 15 mm and a height of 12 mm as the first projections 21, and a length of 10 mm and a width of the second projections 22. The one provided with 9 protrusions having a height of 2 mm and a height of 12 mm was used. The rotation speed of the container 10 by the motor is 7 per minute.
Zero rotation was set.

In the foaming property evaluation method using this apparatus, first, hair was wetted with 30 g of water, 1.0 g of a model sebum made of lanolin was added, and then 1.5 g of shampoo A, B or C was applied. Next, the hair 1 and the protrusions 21 and 22 were slid, and bubbles were collected in the measuring device 50. In this case, the amount of collected bubbles was recorded every 50 seconds immediately after the start of sliding. The result is shown in FIG.

In FIG. 3, the time from the start of sliding to the start of bubbling and the slope of the straight line indicate the fast bubble property (foaming speed).
And the amount of foam after a predetermined time has elapsed is related to the foaming power. From FIG. 3, in the fast foaming property, C is extremely large, followed by A and B, and the foam amount is also in the same order. It can be seen that this result is in good agreement with the result of the sensory evaluation shown in FIG.

(2) Evaluation method of lubricity in the embodiment: After lapse of 250 seconds from the start of sliding in the above (1), water 3000 was used.
The hair was rinsed by pouring mL of the hair onto Hair 1, and the rotational torque after rinsing was measured. The result is shown in FIG.

In FIG. 4, the magnitude of the rotation torque is the addition of the rotation of the disk on which the hair is planted, and the smaller the rotation torque, the better the finger passage during rinsing. From FIG. 4, the rotational torque is largest in A, and then,
The order is C and B. It can be seen that this result is in good agreement with the result of the sensory evaluation shown in FIG.

(3) Method for Evaluating Foaming Property of Comparative Example 1.0 mL of shampoo A, B or C was placed in a cylindrical container having a scale of 50 mm in diameter and 0.3 m of model sebum was added.
L, 48.7 mL of 4 ° hard water was added, the mixture was inverted and stirred, and the foam amount was measured 30 seconds and 300 seconds after the start of stirring. The result is shown in FIG.

In FIG. 5, the foam amount after 30 seconds from the start of stirring is related to the fast foaming property, and the foam amount after 300 seconds is related to the foaming power. From FIG. 5, the order of the quick foaming property is C>A> B, and the order of the foaming power is also C>A> B. Both of them are in the same order as the result of the sensory evaluation of FIG. 6, but the quick foaming property and foaming property of A with respect to the quick foaming property and foaming property of C are significantly larger than the sensory evaluation of FIG. 6. It can be seen that the degree of difference between A and C is not consistent with the sensory evaluation.

(4) Sensory Evaluation (Reference Example) When 20 females in their 10s and 30s were selected as panelists, and each panelist shampooed with shampoo A, B or C, (i) good foaming, (ii) foaming And (iii) finger passing during rinsing were evaluated in five steps as follows, and the average was determined. The result is shown in FIG.

(I) Good foaming 5: Good 4: Moderately good 3: Neither can be said 2: 2: Somewhat poor 1: Not good (ii) Amount of foam 5: Large 4: Somewhat high 3: Neither 2: Slightly less 1: Slightly less (iii) Good finger passing at the time of rinsing 5: Good 4: Slightly good 3: Neither can be 2: Neither good 1: Not good

[0062]

According to the present invention, the foaming property of a cleaning agent such as a shampoo can be evaluated with a measuring system close to the actual use condition.
Furthermore, it is possible to simulate the entire washing process from washing to rinsing, etc., to evaluate lubricity such as the degree of finger passage and squeakiness on hair when using a shampoo or other cleaning agent, and after lathering a shampoo or other cleaning agent. ,
The evaluation of the defoaming property at the time of rinsing, and the evaluation of lubricity such as the degree of finger passage and the degree of squeaking on hair when a hair treatment agent such as rinsing, hair treatment, or hair coloring is applied after washing with water can be favorably performed.

[Brief description of the drawings]

FIG. 1 is an overall view of an apparatus of the present invention.

FIG. 2 is a top view of a disk on which hair is implanted (FIG. 2A) and a cross-sectional view of the disk on which hair is implanted (FIG. 2B).

FIG. 3 is a diagram showing a foaming evaluation result according to an example.

FIG. 4 is a diagram showing the results of lubricity evaluation according to an example.

FIG. 5 is a diagram showing a foaming property evaluation result according to a comparative example.

FIG. 6 is a diagram showing a sensory evaluation result according to a reference example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hair 10 Container 20 Lid 21 First protrusion 22 Second protrusion 23 Bubble guide wall 24 Hair wrap prevention pin 25 Injection hole 30 Motor 50 Meter 50 Water injection hole 60 Torque detector

Claims (16)

[Claims] 1. A cleaning agent is applied to an object for which the cleaning agent is to be used, and the object and the projection are slid, whereby the foam generated is collected by a measuring instrument to measure the amount of the foam. A method for evaluating foaming properties. 2. The method for evaluating foaming properties according to claim 1, wherein the sliding of the object and the projection is performed by rotating the object while bringing them into contact with each other. 3. The method for evaluating foamability according to claim 1, wherein the amount of foam is measured over time while sliding the object and the projection. 4. The method according to claim 1, wherein after the amount of foam generated by the sliding is measured, the sliding between the object and the projection is stopped, and the amount of foam remaining in the measuring instrument is measured with time. The method for evaluating foamability described in Crab. 5. The method according to claim 1, wherein the object is hair and the cleaning agent is shampoo. 6. A cleaning agent or a hair treatment agent is applied to an object using the cleaning agent or the hair treatment agent, and the object and the protrusion are slid during or after the application of the cleaning agent or the hair treatment agent. A method for evaluating lubricity of a cleaning agent or a hair treatment agent, wherein a torque at the time of sliding is measured while sliding. 7. The method for evaluating lubricity of a cleaning agent or a hair treatment agent according to claim 6, wherein the sliding of the object and the projection is performed by rotating the object while bringing them into contact with each other. 8. Applying the cleaning agent to an object using the cleaning agent, sliding the projection on the object, collecting foamed foam by a measuring instrument, and measuring the foam amount; After measuring the foam amount,
A defoaming property evaluation method, which comprises injecting water into an object and measuring the foam amount again. 9. The method for evaluating defoaming properties according to claim 8, wherein foaming after applying the cleaning agent and water injection into the object are performed by rotating the object while bringing the object into contact with the projection. . 10. A foaming agent is evaluated by applying a cleaning agent to hair, sliding the hair and the projections, collecting foamed foam by a measuring instrument, and measuring the foam amount. Then, water is poured into the hair, and the defoaming property of the foam is evaluated by measuring the amount of foam again.After washing the detergent with water, while sliding the protrusion on the hair, the torque at the time of the sliding is reduced. A method for evaluating a hair washing step, comprising evaluating the lubricity of a detergent by measuring. 11. After the washing agent is washed with water, the lubricating property of the hair treatment agent is evaluated by applying a hair treatment agent to the hair and measuring the torque at the time of sliding the protrusions on the hair. The method for evaluating a hair washing step according to claim 10. 12. A container for accommodating an object using a cleaning agent, a projection in contact with the object accommodated in the container, a measuring device for measuring foam generated in the container, a cover for covering the container, and a cover for covering the object. A lid is provided to guide the foamed foam to the measuring device, and a motor for moving the object or the projection contained in the container is provided so that the object and the projection contained in the container slide. Cleaning process evaluation device. 13. The cleaning process evaluation apparatus according to claim 12, wherein the object is rotated with respect to the protrusion. 14. A container for accommodating an object using a cleaning agent or a hair treatment agent, a projection in contact with the object contained in the container, and a sliding movement between the object contained in the container and the projection. An apparatus for evaluating a cleaning process, comprising: a motor for moving an object or a projection housed in a container; and a torque detecting means for measuring a torque at the time of sliding. 15. The cleaning process evaluation apparatus according to claim 14, wherein the motor rotates the object relative to the protrusion, and the torque detecting means comprises a torque detector installed on the rotation shaft. 16. A container for accommodating hair using a cleaning agent or a hair treatment agent, a projection in contact with the hair accommodated in the container, a measuring device for measuring foam generated in the container, a container for covering the container, and A lid that guides the foam generated in step 1 to the measuring instrument, a motor that moves the hair or protrusions stored in the container so that the hair and protrusions stored in the container slide, and a torque at the time of this sliding An apparatus for evaluating a hair-washing step, comprising: a torque detecting means for measuring the amount of hair.