EP3721746B1 - Haarschneideverfahren - Google Patents

Haarschneideverfahren Download PDF

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Publication number
EP3721746B1
EP3721746B1 EP20167544.4A EP20167544A EP3721746B1 EP 3721746 B1 EP3721746 B1 EP 3721746B1 EP 20167544 A EP20167544 A EP 20167544A EP 3721746 B1 EP3721746 B1 EP 3721746B1
Authority
EP
European Patent Office
Prior art keywords
hair
cutting
wave
point
head
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.)
Active
Application number
EP20167544.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3721746A1 (de
EP3721746C0 (de
Inventor
Petra Brockmann
Thomas Brockmann-Knödler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to HRP20231370TT priority Critical patent/HRP20231370T1/hr
Publication of EP3721746A1 publication Critical patent/EP3721746A1/de
Application granted granted Critical
Publication of EP3721746B1 publication Critical patent/EP3721746B1/de
Publication of EP3721746C0 publication Critical patent/EP3721746C0/de
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D7/00—Processes of waving, straightening or curling hair
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D7/00—Processes of waving, straightening or curling hair
    • A45D2007/007—Processes of trimming or cutting hair for hairdressing purposes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms

Definitions

  • the invention relates to a method for cutting wavy human head hair.
  • the curl of wavy head hair is typically characterized by a sequence of wave crests and troughs.
  • the hair is closer to the head or scalp, i.e. facing the head, and in the area of the troughs there is a lowest point that is closest to the head or scalp, in mathematical language a local minimum , when the wave train formed by the hair is considered as a function of the distance from the hair root.
  • there are wave crests in the area of which the hair is further away from the head or scalp, i.e. facing away from the head, and there is a highest point in the area of the wave crests, which is furthest from the head or scalp is distant, so in mathematical language it forms a local maximum.
  • the wave crests have rising flanks, which lie on the side of a wave crest facing the hair root, and falling flanks, which lie on the side of a wave crest facing away from the hair root.
  • the curvature of the wave train changes, and the The point in the wave train at which the curvature changes is called the turning point. If the wave train formed by the hair is viewed mathematically as a function of the distance from the hair root, the turning point is the point between the wave crest and trough at which the second derivative has a zero crossing.
  • the distance between the highest points of two successive wave crests or the distance between the lowest points of two successive wave troughs is referred to as the period length of the hair curl, which can also vary along the hair.
  • a method for cutting wavy human head hair under the title "3 Tips For Cutting Bangs On Curly Hair” is from the website with the URL https://behindthechair.com/articles/3-tips-for-cuttingbangs-on-curly- hair/ already known.
  • Other hair cutting methods are available from the DE 195 38 367 C1 , the EP 2 526 811 A1 and the JP 2018 033896 A also known.
  • the object of the present invention is to propose a hair cutting method in which the inherent structure of the hair curl is better taken into account and an impairment of the cutting result due to the inherent structure of the hair curl is avoided.
  • the aim is to ensure that the ends of the hair point in a desired direction after the haircut.
  • the object is achieved by a hair cutting method according to claim 1.
  • Preferred embodiments are described in the subclaim.
  • the first cutting area is formed by a surrounding area of the highest point of the first wave crest as seen from the hair root
  • the second cutting area is formed by a surrounding area of the turning point on the sloping edge of the first wave crest facing away from the hair root
  • the extent of the surrounding areas forming the first and/or second cutting area is 20%, preferably 10% of the period length of the hair curl. This can be achieved particularly well ensure that the ends of the hair point towards or away from the head as desired after the cut.
  • the highest points and/or the turning points lie essentially centrally in the surrounding areas forming the cutting areas.
  • the first cutting area starts from the hair root at 38% of the distance between the hair root and the lowest point of the first wave trough and / or it ends at 39% of the distance between the hair root and the highest point of the second wave crest.
  • the second cutting area starts from the hair root at 61% of the distance between the hair root and the lowest point of the first wave trough and / or it ends at 62% of the distance between the hair root and the highest point of the second wave crest.
  • This division divides the waves formed by the hair according to the so-called golden ratio.
  • the golden ratio can be used to define first and second cutting areas in the area of the second wave crest and its falling flank or in the area of the third and further wave crest and its falling flank. Determining the cutting areas according to the golden ratio ensures particularly well that the ends of the hair point away from or towards the head as desired after the cut.
  • the hair is cut at least towel-dry.
  • the hair is so dry that your hand is not wet after touching the hair. Even more preferably, the hair is not moistened at all. Moisture in the hair causes a certain change in the wave structure of the hair, so that with drier hair it is possible to cut closer to the wave formation of completely dry hair, allowing for better haircut results.
  • the Figures 1 - 4 illustrate first and second cutting areas according to the method according to the invention.
  • the wavy human head hair is shown schematically by a wave train 10 of wavy hair.
  • the wavy hair has wave troughs 12 facing the head with a lowest point 13 and wave crests 14 facing away from the head with a highest point 15.
  • Fig. 1 and 2 the hair is cut at points 20 and 22, respectively, and after cutting, the hair tip 17 of the cut hair points away from the head.
  • a first cutting area extends between locations 20 and 22, and when the hair is cut in this first cutting area, the ends of the hair point away from the head after cutting. Seen from the hair root 11, the point is 20 in Fig. 1 the beginning 20 of the first cutting area and the location 22 in Fig. 2 its end 22. As can be seen, the first cutting area delimited by the beginning 20 and end 22 is a surrounding area of the highest point 15 of the first wave crest 14 as seen from the hair root 11.
  • Fig. 1 further shows that point 20 divides the distance 30 from the hair root to the lowest point 13 of the first trough 12 into partial lengths 32 and 34.
  • the distance 30 is divided by the partial lengths 32 and 34 in a ratio of 38.2 to 61.8, which corresponds to the so-called golden ratio.
  • the beginning 20 of the first cutting area is located at the division of the distance 30 in the ratio 38.2 to 61.8.
  • Fig. 2 shows the division of the distance 40 from the hair root to the highest point 15 of the second wave crest 14 as seen from the hair root 11 into partial lengths 42 and 44.
  • the partial lengths 42 and 44 increase the distance 40 at point 22 in a ratio of 38.2 61.8, also divided in the ratio of the golden ratio.
  • the end 22 of the first cutting area is at the division of the distance 40 in a ratio of 38.2 to 61.8.
  • the first cutting area is formed by a surrounding area of the highest point 15 of the first wave crest 14, the surrounding area being 20%, preferably 10%, of the period length of the hair curl and the highest point 15 lying essentially in the middle of the first cutting area.
  • the period length of the hair curl corresponds to the distance from the highest point 15 of the first wave crest 14 viewed from the hair root to the highest point 15 of the second wave crest 14, and the first cutting area in this embodiment of the method according to the invention essentially corresponds to the crest of the first wave crest , whereby the width of the peak is 20%, preferably 10%, of the period length of the hair curl.
  • Fig. 3 and 4 the hair is cut at points 24 and 26, respectively, and after cutting, the hair tip 17 of the cut hair points towards the head.
  • a second cutting area extends between locations 24 and 26, and when the hair is cut in this second cutting area, the ends of the hair point towards the head after cutting. Viewed from the hair root, the area is 24 in Fig. 3 the beginning 24 of the first cutting area and the point 26 in
  • the second cutting area delimited by the beginning 24 and end 26 is an area surrounding the turning point 18 of the falling edge of the first wave crest 14 as seen from the hair root.
  • the turning point 18 is the point on the falling edge of the wave crest 14, in which the curvature changes or which lies at the transition from the wave crest to the wave trough.
  • Fig. 3 further shows that the point 24 divides the distance 30 from the hair root 11 to the lowest point 13 of the first trough 12 into partial lengths 52 and 54.
  • the distance 30 is divided by the partial lengths 52 and 54 in a ratio of 61.8 to 38.2, which again corresponds to the so-called golden ratio.
  • the beginning 24 of the second cutting area is located at the division of the distance 30 in a ratio of 61.8 to 38.2.
  • Fig. 4 shows the division of the distance 40 from the hair root to the highest point 15 of the second wave crest 14 as seen from the hair root into partial lengths 62 and 64.
  • the partial lengths 62 and 64 make the distance 40 at point 26 in a ratio of 61.8 to 38 .2, also divided in the ratio of the golden ratio.
  • the end 26 of the first cutting area is at the division of the distance 40 in a ratio of 61.8 to 38.2.
  • the second cutting area is formed by a surrounding area of the turning point 18 on the falling edge of the first wave crest 1, the surrounding area being 20%, preferably 10%, of the period length of the hair curl and the turning point 18 essentially in the middle of the second cutting area lies.
  • the period length of the hair curl corresponds to the distance from the highest point 15 of the first wave crest 14 as seen from the hair root to the highest point 15 of the second wave crest 14.
  • the special one With the hair cutting method according to the invention, in particular with the subdivision of the waves of the hair curl according to the golden ratio, the special one becomes The advantage is that the hair tips point in a desired direction after cutting. The natural curl and structure of the hair is taken into account, thus achieving a hair cutting result that corresponds to the nature of the hair and at the same time is visually advantageous.

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  • Cosmetics (AREA)
  • Dry Shavers And Clippers (AREA)
EP20167544.4A 2019-04-12 2020-04-01 Haarschneideverfahren Active EP3721746B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20231370TT HRP20231370T1 (hr) 2019-04-12 2020-04-01 Metoda šišanja kose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019109783.5A DE102019109783A1 (de) 2019-04-12 2019-04-12 Haarschneideverfahren

Publications (3)

Publication Number Publication Date
EP3721746A1 EP3721746A1 (de) 2020-10-14
EP3721746B1 true EP3721746B1 (de) 2023-10-25
EP3721746C0 EP3721746C0 (de) 2023-10-25

Family

ID=70154290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20167544.4A Active EP3721746B1 (de) 2019-04-12 2020-04-01 Haarschneideverfahren

Country Status (5)

Country Link
EP (1) EP3721746B1 (pl)
DE (1) DE102019109783A1 (pl)
ES (1) ES2969288T3 (pl)
HR (1) HRP20231370T1 (pl)
PL (1) PL3721746T3 (pl)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538367C1 (de) * 1995-10-14 1996-09-12 Brian Mclean Verfahren und Vorrichtung zum Schneiden von Haaren zur Erzeugung von lockigen oder gewellten Frisuren
US6257248B1 (en) * 1999-12-10 2001-07-10 Wen-Ya Yeh Both hand hair cutting method
EP2526811B1 (de) * 2011-05-26 2016-05-11 Lara De Donno Verfahren zum Schneiden von Kopfhaaren und Vorrichtung zur Verwendung hierbei
JP2018033896A (ja) * 2016-09-04 2018-03-08 株式会社ブランシェ ヘアカット方法、及び、捻り付曲がり鋏

Also Published As

Publication number Publication date
HRP20231370T1 (hr) 2024-02-16
EP3721746A1 (de) 2020-10-14
EP3721746C0 (de) 2023-10-25
ES2969288T3 (es) 2024-05-17
PL3721746T3 (pl) 2024-04-02
DE102019109783A1 (de) 2020-10-15

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