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WO2018114435A1 - Procédé et dispositif pour analyser des cheveux - Google Patents

Procédé et dispositif pour analyser des cheveux Download PDF

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Publication number
WO2018114435A1
WO2018114435A1 PCT/EP2017/082236 EP2017082236W WO2018114435A1 WO 2018114435 A1 WO2018114435 A1 WO 2018114435A1 EP 2017082236 W EP2017082236 W EP 2017082236W WO 2018114435 A1 WO2018114435 A1 WO 2018114435A1
Authority
WO
WIPO (PCT)
Prior art keywords
hair
light
regions
porosity
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/082236
Other languages
German (de)
English (en)
Inventor
Burkhard Müller
Torsten LECHNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of WO2018114435A1 publication Critical patent/WO2018114435A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/448—Hair evaluation, e.g. for hair disorder diagnosis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/0846—Investigating permeability, pore-volume, or surface area of porous materials by use of radiation, e.g. transmitted or reflected light

Definitions

  • the invention relates to methods and arrangements for examining hair.
  • a method for examining hair comprises: during transillumination of a hair cross section of a hair sample with light, registering light emitted by the hair sample, determining, based on the registered light, first regions of the hair cross section, which are more penetrated by light, and second regions of the hair cross-section that are less penetrated by light and determining a porosity of the hair sample based on the sizes of the first regions and the second regions.
  • an arrangement for examining hair according to the method described above is provided.
  • FIG. 1 illustrates the removal of a hair sample.
  • Figure 2 shows the structure of a hair.
  • Figure 3 shows an arrangement for examining hair.
  • Figure 4 is a flow chart illustrating a method of examining hair.
  • Figure 6 shows an arrangement for examining hair.
  • FIG. 1 illustrates the removal of a hair sample.
  • a hair sample 102P may be taken to examine a user's hair 102.
  • the hair sample 102P may be removed at a distance 102PL from a scalp of the user and may have a single or multiple hairs.
  • Examination of a user's hair 102 may also be made without removing a hair sample 102P directly from the user's head.
  • FIG. 2 shows the structure of a hair 200.
  • the hair has a cuticle 201, a cortex 202 and medulla (also called medulla) 203.
  • the hair is examined by measuring the medulla 203 e.g. with the help of a microscope and glass fiber (for light transport from the light source to the hair cross section) is examined for its porosity.
  • the hair can be treated for a change (typically increase) in hair shine, for example, by treating the hair with products that reduce the porosity of the Medulla 203.
  • FIG. 3 shows an arrangement 300 for examining hair.
  • the arrangement 300 comprises a carrier 301, on which a piece of fiber 302 of approximately 0.5 mm thickness cut off transversely to the fiber from a head hair of a subject is laid.
  • the arrangement 300 has a light source 303, which irradiates the fiber piece 302 by means of a glass fiber cable 304 with light, for example with a luminous flux in the range of 50 to 5000 lumens, for example in the range of 200 to 1000 lumens, for example about 500 lumens.
  • the microscope 306 has an optical magnification in the range of 10 to 500 times, for example in the range of 100 to 200 times, for example a 175 -fold magnification.
  • a microscope-connected camera 307 stores the resulting image output from the microscope and transmits it to a data processing device 308 which executes image analysis software (or, more generally, an application for evaluating the image material).
  • the data processing device 308 determines (using the image analysis software) the proportion of light (i.e., porous) areas in the center of the hair fiber 302.
  • center of the hair fiber for example, those 30% of the image of the hair are defined whose distance from the hair surface is maximum.
  • the application for evaluating the image material differentiates between light and dark areas of the recorded hair cross section. The more frequent and larger the bright areas in the hair cross section in relation to the dark areas, the stronger the porosity of the medulla and the associated visually perceived hair shine is less.
  • the data processing device 308 may be based on the determined porosity, e.g. Depending on a determined degree of porosity, give a product recommendation. In this case, a product can be recommended which is suitable to fill the existing pores of the medulla corresponding to the determined porosity. The filling of the pores causes the incident light is not scattered, but is reflected directionally, whereby an increase in the visually perceived hair shine is achieved.
  • the data processing device 308 can recommend not only purely filling substances (eg water, amino acids, lactic acid, urea, uric acid, dicarboxylic acids, generally substances of the NMF (Natural Moisturizing Factor) group), which protect the hair against overheating Overheating leads to new pore formation. These are e.g. Oils and also film formers (e.g., styling polymers). For more porous hair, data processing device 308 may recommend high gloss products with dark coloration and less glossy products with lighter color for less porous hair.
  • substances eg water, amino acids, lactic acid, urea, uric acid, dicarboxylic acids, generally substances of the NMF (Natural Moisturizing Factor) group
  • NMF Natural Moisturizing Factor
  • data processing device 308 may recommend high gloss products with dark coloration and less glossy products with lighter color for less porous hair.
  • the data processing device 308 determines, for example, the area fraction of light areas on the total area of the image of the hair cross section 302. For this purpose, a brightness threshold value can be specified and the data processing device recognizes areas with a lower brightness than the brightness threshold as dark and areas with a The brightness threshold is defined, for example, with reference to the brightness of the dark areas of the photo (eg as a factor of the brightness of the dark areas).
  • the brightness threshold is defined, for example, such that the (area) ratio of light to dark regions of the hair cross section (for hair with porosities that typically occur) is in the range of 0 to 25%, for example in the range of 0 to 10%.
  • a certain number of porosity levels are defined, for example up to 5 porosity levels, e.g. 2 or 3.
  • An example of an assignment of (area proportions of light areas (relative to the total hair cross-sectional area) to hair porosity grade is shown in Table 1.
  • Table 2 This gives the user, with the help of the determined hair porosity values and their assignment to degrees of hair porosity, a product recommendation as shown in the example.
  • the microscope 306, the camera 307, the data processing device 308 and possibly also the light source 303, the optical fiber cable 304 and the carrier 302 can be realized by a smartphone equipped with a microscope objective for smartphones.
  • the microscope 306, the camera 307, the data processing device 308, and optionally also the light source 303, the fiber optic cable 304, and the carrier 302 may be provided by a WLAN-enabled media player such as the iPod touch or a tablet using a microscope objective for such mobile electrical Devices are realized
  • a method for examining hair is provided, as illustrated in FIG.
  • FIG. 4 shows a flowchart 400.
  • first regions of the hair cross-section which are penetrated more strongly by light, and second regions of the hair cross-section, which are less strongly penetrated by light, are determined.
  • a porosity of the hair sample is determined based on the sizes of the first regions and the second regions.
  • determining the porosity based on the ratio of the size of the first areas to the total area may be considered to be based on the size of the second areas, because the larger the second areas are, the smaller the size of the first areas (The sum of the size of the first areas and the size of the second areas is, for example, the total area, plus any areas that are not the first Areas are still assigned to the second areas, such as areas of average light transmission).
  • the method according to FIG. 4 can be realized, for example, with a portable electronic device, such as a smartphone, for example, and provides a consumer with an easy way of obtaining a recommendation of gloss-enhancing products based on medullaporosity.
  • the porosity can be considered as a measure of hair shine.
  • the method according to FIG. 4 is carried out, for example, by an arrangement as shown in FIG.
  • FIG. 5 shows an arrangement 500 for examining hair.
  • the assembly 500 includes a lamp 501 configured to illuminate a hair cross section of a hair sample 502 with light.
  • the assembly 500 further includes a light registration device 503 configured to register light emitted from the hair sample 502.
  • the arrangement 500 has a data processing device 504 which is set up based on the registered light to determine first regions of the hair cross section, which are penetrated more strongly by light and second regions of the hair cross section, which are less strongly penetrated by light, and a porosity of the hair cross section Hair sample 502 is determined based on the sizes of the first regions and the second regions.
  • embodiments relating to the method of examining hair apply analogously to the method for determining an individual hair treatment recommendation and arrangement for examining hair, and vice versa.
  • the consumer can also be given (for example automatically by means of his smartphone) an objectively determined recommendation as to which products are well suited for his hair, for example to increase hair shine.
  • Embodiment 1 is a method for examining hair, as shown in FIG.
  • Embodiment 2 is the method according to Embodiment 1, wherein the porosity of the hair sample is a medullaporosity of the hair sample.
  • Embodiment 3 is the method according to embodiment 1 or 2, comprising transilluminating the hair cross-section by means of a lamp and passing the light emitted by the lamp on the hair cross-section by means of a fiber optic cable.
  • Embodiment 4 is the method according to embodiment 3, wherein the registering of the light comprises registering the light which is emitted from the side of the hair cross section facing away from the glass fiber cable.
  • Embodiment 5 is the method according to one of the embodiments 1 to 4, comprising determining the porosity of the hair sample based on the ratio of the size of the first areas to the size of the second areas.
  • Embodiment 6 is the method according to one of embodiments 1 to 5, comprising determining the porosity of the hair sample based on the relative size of the first regions or the relative size of the second regions relative to the hair cross-sectional area.
  • Embodiment 7 is the method according to one of the embodiments 1 to 6, wherein the recording of the light is effected by means of a microscope.
  • Embodiment 8 is the method according to one of the embodiments 1 to 7, wherein the recording of the light has the recording of a photograph of the hair cross-section.
  • Embodiment 9 is the method of embodiment 8, wherein determining the first regions and determining the second regions comprises determining brighter areas and darker areas of the photo.
  • Embodiment 10 is the method according to embodiment 8 or 9, wherein the determination of the first areas comprises determining areas of the photo whose brightness is greater than a predetermined threshold value or greater than a predetermined threshold value.
  • FIG. 1 is the method of one of Embodiments 8-10, wherein determining the second regions comprises determining regions of the photo whose brightness is less than or equal to the predetermined threshold or less than the predetermined threshold.
  • Embodiment 12 is the method according to one of the embodiments 1 to 1 1, comprising determining the porosity for a plurality of hair samples and determining, as the porosity of the hair, an average porosity of the determined porosities.
  • Embodiment 13 is the method according to one of the embodiments 1 to 12, further comprising selecting a user-specific means based on the determined porosity.
  • Embodiment 14 is the method according to embodiment 13, further comprising displays and / or announcements of the selected user-specific means.
  • Embodiment 15 is an arrangement for examining hair as shown in FIG.
  • the invention comprises a method for determining an individual hair treatment recommendation, characterized by the steps
  • the individual treatment recommendation include the recommendation of commercially available hair care products, especially hair care products for gloss enhancement.
  • the method of determining an individual hair treatment recommendation may include a step of initiating an order of the recommended hair care product. It is further preferred that the individual treatment recommendation is to advise or disapprove the individual for use of hair care products that identifies the individual using QR codes, NFC chips, bar codes or RFID chips.
  • the individual treatment recommendation may be to counsel the individual to use hair care products that are individually made for the individual and to initiate an ordering process, preferably by calling an internet site of a manufacturer of individual hair care products.
  • step c) be performed at a hairdresser, at a point of sale (POS) of hair treatment products or in the home.
  • Step c) is preferably controlled by a smart terminal, such as a smartphone, a WLAN-enabled media player or a tablet, preferably via a pre-installed app.
  • a smart terminal such as a smartphone, a WLAN-enabled media player or a tablet

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Dispersion Chemistry (AREA)
  • Dermatology (AREA)
  • Optics & Photonics (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Selon différents modes de réalisation donnés à titre d'exemple, l'invention concerne un procédé d'analyse de cheveux qui comprend les étapes suivantes : pendant le passage d'une lumière à travers une section transversale d'un échantillon capillaire, enregistrement de la lumière émise par l'échantillon capillaire ; sur la base de la lumière enregistrée, détermination de premières zones de la section transversale de cheveu, qui sont plus fortement traversées par la lumière, et de deuxièmes zones de la section transversale de cheveu, qui sont moins fortement traversées par la lumière, et détermination d'une porosité de l'échantillon capillaire sur la base de la taille des premières zones et des deuxièmes zones.
PCT/EP2017/082236 2016-12-20 2017-12-11 Procédé et dispositif pour analyser des cheveux Ceased WO2018114435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016225676.9 2016-12-20
DE102016225676.9A DE102016225676B4 (de) 2016-12-20 2016-12-20 Verfahren und Anordnung zum Untersuchen von Haar

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WO2018114435A1 true WO2018114435A1 (fr) 2018-06-28

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PCT/EP2017/082236 Ceased WO2018114435A1 (fr) 2016-12-20 2017-12-11 Procédé et dispositif pour analyser des cheveux

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WO (1) WO2018114435A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116165121A (zh) * 2023-04-25 2023-05-26 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) 一种有机污染物在人类头发横截面渗透的检测方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017215744A1 (de) * 2017-09-07 2019-03-07 Henkel Ag & Co. Kgaa Verfahren und System zum Ermitteln eines Porositätsgrads von Haar
DE102017215791A1 (de) * 2017-09-07 2019-03-07 Henkel Ag & Co. Kgaa Verfahren und Vorrichtung zum Ermitteln eines Glanzwerts von Haaren

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0978272A1 (fr) * 1998-08-07 2000-02-09 Kao Corporation Préparation pour les soins de la medulla
US20120320191A1 (en) * 2011-06-15 2012-12-20 Stephan James Andreas Meschkat Device for Analyzing Hair Fibers and Methods of Using the Device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506677A1 (de) * 1995-02-25 1996-08-29 Wella Ag Verfahren und Anordnung zur Bestimmung der Beschaffenheit von Haar
JP5295906B2 (ja) 2009-08-03 2013-09-18 花王株式会社 毛髪特性データの取得方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0978272A1 (fr) * 1998-08-07 2000-02-09 Kao Corporation Préparation pour les soins de la medulla
US20120320191A1 (en) * 2011-06-15 2012-12-20 Stephan James Andreas Meschkat Device for Analyzing Hair Fibers and Methods of Using the Device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHINOBU NAGASE ET AL: "Influence of internal structures of hair fiber on hair appearance. I : Light scattering from the porous structure of the medulla of human hair", J. COSMET. SCI, vol. 53, April 2002 (2002-04-01), pages 89 - 100, XP055456194 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116165121A (zh) * 2023-04-25 2023-05-26 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) 一种有机污染物在人类头发横截面渗透的检测方法

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DE102016225676A1 (de) 2017-07-13
DE102016225676B4 (de) 2025-11-06

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