CA2567712A1 - Method of measuring hair state such as hair frizz and hair volume - Google Patents
Method of measuring hair state such as hair frizz and hair volume Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/4833—Physical analysis of biological material of solid biological material, e.g. tissue samples, cell cultures
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Abstract
Disclosed is a method to more precisely measure hair state such as hair frizz and hair volume; the method using a light emission element to emit a light to a hair sample, and a light receiving element to receive the light which is reflected by the surface of the hair sample; the method comprising following steps: converting the received light to the position of the surface of the hair sample by triangulation, and evaluating the state of a certain portion of the hair and/or overall the hair sample by using the position of the surface of the hair sample.
Description
la METHOD OF MEASURING HAIR STATE
SUCH AS HAIR FRIZZ AND HAIR VOLUME
FIELD OF THE INVENTION
The present invention relates to a method to more precisely measure hair state such as hair frizz and hair volume.
BACKGROUND OF THE INVENTION
Human hair becomes soiled due to its contact with the surrounding environment and from the sebum secreted by the scalp. The soiling of hair causes it to have a dirty feel and an unattractive appearance. The soiling of the hair necessitates shampooing with frequent regularity.
Shampooing cleans the hair by removing excess soil and sebum. However, shampooing can leave the hair in a wet, tangled, and generally unmanageable state. Once the hair dries, it is often left in a dry, rough, lusterless, or frizzy condition due to removal of the hair's natural oils and other natural conditioning and moisturizing components. The hair can further be left with increased levels of static upon drying, which can interfere with combing and result in a condition commonly referred to as "fly-away hair", or contribute to an undesirable phenomena of "split ends", particularly for long hair.
A variety of approaches have been developed to condition the hair. These approaches range from post-shampoo application of hair conditioners such as leave-on and rinse-off products, to hair conditioning shampoos which attempt to both clean and condition the hair from a single product.
A common method of providing conditioning benefit to the hair is through the use of hair conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof.
Most of these conditioning agents are known to provide various conditioning benefits such as moisturized feel, softness, and static control to the hair.
There has been a desire for a method of measuring hair state such as hair frizz and hair volume for the purpose of, for example, evaluations of hair conditioning agents/compositions, and some methods have been developed. For example, WO 01/68051 discloses "Image Analysis Protocol" which is a system and procedure which is designed to digitally measure hair areas by a digital camera, and analyze the components of bulk hair area and flyaway hair area which in turn form the total hair area. This method is based on two dimensional image analyses. However, it has been found that such two dimensional image analyses are not sufficient to precisely evaluate the hair state.
Based on the foregoing, there remains a need for a method to more precisely measure hair state such as hair frizz and hair volume.
None of the existing art provides all of the advantages and benefits of the present invention.
SUMMARY OF THE INVENTION
The present invention is directed to a method of measuring hair state comprising following steps:
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
(e) converting the received light to the position of the surface of the hair sample by triangulation;
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
The present invention can provide a method more precisely measure hair state including, for example, hair frizz, hair volume, flyaway, and hair style, by the above three dimensional measurement of the hair.
The present invention is also directed to an equipment of measuring hair state comprising:
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample by using triangulation; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
These and other features, aspects, and advantages of the present invention will become better understood from a reading of the following description, and appended claims.
SUCH AS HAIR FRIZZ AND HAIR VOLUME
FIELD OF THE INVENTION
The present invention relates to a method to more precisely measure hair state such as hair frizz and hair volume.
BACKGROUND OF THE INVENTION
Human hair becomes soiled due to its contact with the surrounding environment and from the sebum secreted by the scalp. The soiling of hair causes it to have a dirty feel and an unattractive appearance. The soiling of the hair necessitates shampooing with frequent regularity.
Shampooing cleans the hair by removing excess soil and sebum. However, shampooing can leave the hair in a wet, tangled, and generally unmanageable state. Once the hair dries, it is often left in a dry, rough, lusterless, or frizzy condition due to removal of the hair's natural oils and other natural conditioning and moisturizing components. The hair can further be left with increased levels of static upon drying, which can interfere with combing and result in a condition commonly referred to as "fly-away hair", or contribute to an undesirable phenomena of "split ends", particularly for long hair.
A variety of approaches have been developed to condition the hair. These approaches range from post-shampoo application of hair conditioners such as leave-on and rinse-off products, to hair conditioning shampoos which attempt to both clean and condition the hair from a single product.
A common method of providing conditioning benefit to the hair is through the use of hair conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof.
Most of these conditioning agents are known to provide various conditioning benefits such as moisturized feel, softness, and static control to the hair.
There has been a desire for a method of measuring hair state such as hair frizz and hair volume for the purpose of, for example, evaluations of hair conditioning agents/compositions, and some methods have been developed. For example, WO 01/68051 discloses "Image Analysis Protocol" which is a system and procedure which is designed to digitally measure hair areas by a digital camera, and analyze the components of bulk hair area and flyaway hair area which in turn form the total hair area. This method is based on two dimensional image analyses. However, it has been found that such two dimensional image analyses are not sufficient to precisely evaluate the hair state.
Based on the foregoing, there remains a need for a method to more precisely measure hair state such as hair frizz and hair volume.
None of the existing art provides all of the advantages and benefits of the present invention.
SUMMARY OF THE INVENTION
The present invention is directed to a method of measuring hair state comprising following steps:
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
(e) converting the received light to the position of the surface of the hair sample by triangulation;
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
The present invention can provide a method more precisely measure hair state including, for example, hair frizz, hair volume, flyaway, and hair style, by the above three dimensional measurement of the hair.
The present invention is also directed to an equipment of measuring hair state comprising:
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample by using triangulation; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
These and other features, aspects, and advantages of the present invention will become better understood from a reading of the following description, and appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the invention will be better understood from the following description of the accompanying figure in which:
Fig. 1 illustrates a preferred embodiment of the measurement of hair state of the present invention.
Fig. 2 shows an illustrated embodiment of hair samples for the evaluations which results are shown in Fig. 3 and 4.
Fig. 3 is another illustrated embodiment of the result of the evaluation of hair state measured according to the measurement method of the present invention.
Fig. 4 is another illustrated embodiment of the result of the evaluation of hair state measured according to the measurement method of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description.
Herein, "comprising" means that other steps and other ingredients which do not affect the end result can be added. This term encompasses the terms "consisting of' and "consisting essentially of'.
Herein, "mixtures" is meant to include a simple combination of materials and any compounds that may result from their combination.
METHOD OF MEASURING HAIR STATE
The method of measuring hair state of the present invention comprises following steps:
A method of measuring hair state comprising following steps:
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the invention will be better understood from the following description of the accompanying figure in which:
Fig. 1 illustrates a preferred embodiment of the measurement of hair state of the present invention.
Fig. 2 shows an illustrated embodiment of hair samples for the evaluations which results are shown in Fig. 3 and 4.
Fig. 3 is another illustrated embodiment of the result of the evaluation of hair state measured according to the measurement method of the present invention.
Fig. 4 is another illustrated embodiment of the result of the evaluation of hair state measured according to the measurement method of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description.
Herein, "comprising" means that other steps and other ingredients which do not affect the end result can be added. This term encompasses the terms "consisting of' and "consisting essentially of'.
Herein, "mixtures" is meant to include a simple combination of materials and any compounds that may result from their combination.
METHOD OF MEASURING HAIR STATE
The method of measuring hair state of the present invention comprises following steps:
A method of measuring hair state comprising following steps:
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
(e) converting the received light to the position of the surface of the hair sample by triangulation;
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
Fig. 1 illustrates a preferred embodiment of the measurement of hair state of the present invention. In the illustrated embodiment as shown in Fig. 1, the hair sample is placed in front of a center plane (x-z plane at y=0) at a position which is within the focal area of the light, and the position of the surface of the hair sample is the distance y of the surface of the hair sample from the center plane.
The light emission element used in the method of the present invention includes, for example, line laser, circular laser, LED, and halogen lamp. Preferred light emission element is line laser and circular laser, more preferred is line laser as shown in Fig. 1 in view of accurate measurement especially when used with CCD with higher spatial resolution. The wavelength of the laser can be from about 100nm to about 10micron, preferably from about 450nm to about 800nm, more preferably from about 550nm to about 700nm in view of precise measurement especially when using CCD camera as the light receiving element, and in view of commercial availability. The light receiving element used in the present invention can be any two dimensional sensors such as CCD, CMOS, PSD, and InGaAs. Preferred is CCD as shown in Fig.
1 in view of precise measurement. The resolution of CCD is at least 320x240 dotts. In the illustrated embodiment shown in Fig.l, CCD has 300micrometer spatial resolution. Although it is not shown in Fig. 1, the light receiving element such as CCD is preferably connected to a computer for the conversion of the received light to the position of the surface of the hair sample such as the distance y by triangulation and/or for the evaluation of the hair state.
The conversion of the received light to the position of the surface of the hair sample, i.e., the distance y of the surface of the hair sample from the center plane is made by triangulation.
For the evaluation of the overall hair volume, the hair sample can be scanned in whole, i.e., from root to tip and from right side to left side. For the evaluation of hair frizz, the hair sample can be scanned in whole, or a certain area of the hair sample can be scanned.
The evaluation is made with or without the reproduction of the structure of the hair sample in three dimensions on the screen of computer which is connected to, for example, the light receiving element such as CCD. For example, the evaluation of hair state is made with the reproduction of the structure of the hair sample in three dimensions and made by showing the hair in different colors based on the distance y of the surface of the hair sample from the center plane.
Fig. 2 shows an illustrated embodiment of hair samples for the evaluations which results are shown in Fig. 3 and 4. Fig. 3 is an illustrated embodiment of the result of the evaluation of hair state, especially hair frizz according to the measurement method of the present invention. In Fig.3, the horizontal axis shows the distance y which is a distance of the surface of the hair sample from the center plane, and the vertical axis shows the percentage of hair volume compared to the hair volume at y 10. In Fig.3, Sample A shows a larger percentage at y=30 or more, i.e., larger amount of hair volume compared to Samples B and C at y=30 or more. Larger amount of hair volume at a certain distance such as y=30 or more means expanded hair and/or hair which is not aligned well, i.e., larger amount of hair frizz. Fig. 4 is an illustrated embodiment of the result of the evaluation of hair volume according to the measurement method of the present invention. In Fig.4, Samples A, B and C show clear differences in the amount of hair volume. The evaluations shown in Fig. 3 and 4 can be made with or without the reproduction of the structure of the hair sample in three dimensions.
EOUIPMENT OF MEASURING HAIR STATE
The equipment of measuring hair state of the present invention comprising:
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample by using triangulation; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
The details of the light emission element and the light receiving element are explained above. The conversion element is a computer and/or computer software. The computer and/or computer software can be incorporated into the light emission element, or can exist separately from the light emission element but in connection to the light emission element. The evaluation element is also a computer and/or computer software. This evaluation element can be incorporated into the light emission element and/or the conversion element, or can exist separately from them but in connection to the conversion element.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm".
All documents cited in the Detailed Description of the Invention are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the sprit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
Fig. 1 illustrates a preferred embodiment of the measurement of hair state of the present invention. In the illustrated embodiment as shown in Fig. 1, the hair sample is placed in front of a center plane (x-z plane at y=0) at a position which is within the focal area of the light, and the position of the surface of the hair sample is the distance y of the surface of the hair sample from the center plane.
The light emission element used in the method of the present invention includes, for example, line laser, circular laser, LED, and halogen lamp. Preferred light emission element is line laser and circular laser, more preferred is line laser as shown in Fig. 1 in view of accurate measurement especially when used with CCD with higher spatial resolution. The wavelength of the laser can be from about 100nm to about 10micron, preferably from about 450nm to about 800nm, more preferably from about 550nm to about 700nm in view of precise measurement especially when using CCD camera as the light receiving element, and in view of commercial availability. The light receiving element used in the present invention can be any two dimensional sensors such as CCD, CMOS, PSD, and InGaAs. Preferred is CCD as shown in Fig.
1 in view of precise measurement. The resolution of CCD is at least 320x240 dotts. In the illustrated embodiment shown in Fig.l, CCD has 300micrometer spatial resolution. Although it is not shown in Fig. 1, the light receiving element such as CCD is preferably connected to a computer for the conversion of the received light to the position of the surface of the hair sample such as the distance y by triangulation and/or for the evaluation of the hair state.
The conversion of the received light to the position of the surface of the hair sample, i.e., the distance y of the surface of the hair sample from the center plane is made by triangulation.
For the evaluation of the overall hair volume, the hair sample can be scanned in whole, i.e., from root to tip and from right side to left side. For the evaluation of hair frizz, the hair sample can be scanned in whole, or a certain area of the hair sample can be scanned.
The evaluation is made with or without the reproduction of the structure of the hair sample in three dimensions on the screen of computer which is connected to, for example, the light receiving element such as CCD. For example, the evaluation of hair state is made with the reproduction of the structure of the hair sample in three dimensions and made by showing the hair in different colors based on the distance y of the surface of the hair sample from the center plane.
Fig. 2 shows an illustrated embodiment of hair samples for the evaluations which results are shown in Fig. 3 and 4. Fig. 3 is an illustrated embodiment of the result of the evaluation of hair state, especially hair frizz according to the measurement method of the present invention. In Fig.3, the horizontal axis shows the distance y which is a distance of the surface of the hair sample from the center plane, and the vertical axis shows the percentage of hair volume compared to the hair volume at y 10. In Fig.3, Sample A shows a larger percentage at y=30 or more, i.e., larger amount of hair volume compared to Samples B and C at y=30 or more. Larger amount of hair volume at a certain distance such as y=30 or more means expanded hair and/or hair which is not aligned well, i.e., larger amount of hair frizz. Fig. 4 is an illustrated embodiment of the result of the evaluation of hair volume according to the measurement method of the present invention. In Fig.4, Samples A, B and C show clear differences in the amount of hair volume. The evaluations shown in Fig. 3 and 4 can be made with or without the reproduction of the structure of the hair sample in three dimensions.
EOUIPMENT OF MEASURING HAIR STATE
The equipment of measuring hair state of the present invention comprising:
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample by using triangulation; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
The details of the light emission element and the light receiving element are explained above. The conversion element is a computer and/or computer software. The computer and/or computer software can be incorporated into the light emission element, or can exist separately from the light emission element but in connection to the light emission element. The evaluation element is also a computer and/or computer software. This evaluation element can be incorporated into the light emission element and/or the conversion element, or can exist separately from them but in connection to the conversion element.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm".
All documents cited in the Detailed Description of the Invention are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the sprit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims (7)
1. A method of measuring hair state comprising following steps:
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
(e) converting the received light to the position of the surface of the hair sample by triangulation;
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
(a) setting a light emission element to emit a light to a hair sample, and setting a light receiving element to receive the light which is reflected by the hair sample;
(b) placing the hair sample at a position which is within the focal area of the light;
(c) irradiating the light from the light emission element to the hair sample;
(d) receiving the reflected light by the light receiving element;
(e) converting the received light to the position of the surface of the hair sample by triangulation;
and (f) evaluating the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
2. The method of measuring hair state of Claim 1 wherein the light emission element is a line laser.
3. The method of measuring hair state of Claim 2 wherein the line laser has a wave length of from about 550nm to about 700nm.
4. The method of measuring hair state of Claim 1 wherein the light receiving element is CCD.
5. The method of measuring hair state of Claim 1 wherein the step (f) is the evaluation of overall hair volume.
6. The method of measuring hair state of Claim 1 wherein the step (f) is the evaluation of hair frizz.
7. An equipment of measuring hair state comprising:
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
(a) a light emission element to emit a light to a hair sample (b) a light receiving element to receive the light which is reflected by the hair sample;
(c) a conversion element to convert the received light to the position of the surface of the hair sample; and (d) an evaluation element to evaluate the state of a certain portion of the hair sample and/or overall the hair sample by using the position of the surface of the hair sample.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73607305P | 2005-11-10 | 2005-11-10 | |
US60/736,073 | 2005-11-10 |
Publications (1)
Publication Number | Publication Date |
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CA2567712A1 true CA2567712A1 (en) | 2007-05-10 |
Family
ID=38024509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CA 2567712 Abandoned CA2567712A1 (en) | 2005-11-10 | 2006-11-10 | Method of measuring hair state such as hair frizz and hair volume |
Country Status (1)
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CA (1) | CA2567712A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013016604A1 (en) * | 2011-07-28 | 2013-01-31 | The Procter & Gamble Company | Method for assessing condition of fibers |
WO2017083600A1 (en) | 2015-11-12 | 2017-05-18 | The Procter & Gamble Company | Hair conditioning composition comprising cyclic compounds and compounds having at least three head groups |
WO2018213652A1 (en) | 2017-05-19 | 2018-11-22 | The Procter & Gamble Company | Hair care composition comprising non-volatile hydrocarbon oils and fatty esters of benzoic acid |
WO2018213651A1 (en) | 2017-05-19 | 2018-11-22 | The Procter & Gamble Company | Hair care composition comprising triester compounds and fatty esters of benzoic acid |
-
2006
- 2006-11-10 CA CA 2567712 patent/CA2567712A1/en not_active Abandoned
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013016604A1 (en) * | 2011-07-28 | 2013-01-31 | The Procter & Gamble Company | Method for assessing condition of fibers |
CN103688168A (en) * | 2011-07-28 | 2014-03-26 | 宝洁公司 | Method for assessing condition of fibers |
US9121842B2 (en) | 2011-07-28 | 2015-09-01 | The Procter & Gamble Company | Method for assessing condition of fibers |
CN103688168B (en) * | 2011-07-28 | 2016-04-06 | 宝洁公司 | For assessment of the method for fiber situation |
WO2017083600A1 (en) | 2015-11-12 | 2017-05-18 | The Procter & Gamble Company | Hair conditioning composition comprising cyclic compounds and compounds having at least three head groups |
WO2017083601A1 (en) | 2015-11-12 | 2017-05-18 | The Procter & Gamble Company | Hair conditioning composition providing improved hair manageability |
WO2018213652A1 (en) | 2017-05-19 | 2018-11-22 | The Procter & Gamble Company | Hair care composition comprising non-volatile hydrocarbon oils and fatty esters of benzoic acid |
WO2018213651A1 (en) | 2017-05-19 | 2018-11-22 | The Procter & Gamble Company | Hair care composition comprising triester compounds and fatty esters of benzoic acid |
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Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |