FR2698766A1 - Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments - Google Patents

Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments Download PDF

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Publication number
FR2698766A1
FR2698766A1 FR9214664A FR9214664A FR2698766A1 FR 2698766 A1 FR2698766 A1 FR 2698766A1 FR 9214664 A FR9214664 A FR 9214664A FR 9214664 A FR9214664 A FR 9214664A FR 2698766 A1 FR2698766 A1 FR 2698766A1
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FR
France
Prior art keywords
monofilaments
artificial hair
moulded
extruded
polybutylene terephthalate
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.)
Withdrawn
Application number
FR9214664A
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French (fr)
Inventor
Benhaim Gerard
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9214664A priority Critical patent/FR2698766A1/en
Publication of FR2698766A1 publication Critical patent/FR2698766A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/10—Hair or skin implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/18—Materials or treatment for tissue regeneration for hair reconstruction

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  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dermatology (AREA)
  • Chemical & Material Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Medicinal Preparation (AREA)

Abstract

The artificial hair is made from a synthetic material based on polybutylene-terephthalate, extruded or moulded to produce capillary monofilaments with a diameter of 85-100 microns. Pref. the base material has a mol. wt. of 8500-10000, with a chain length of 430-538 A, and the filaments formed from it are implanted in the skin singly or doubly, using a notched needle and a slip-knot. The filaments should have a breaking strain or at least 250 grammes and a coefficient of elasticity of 36 per cent or more. They can be coloured with non-organic and biocompatible dyes. USE/ADVANTAGE - Replacement for human hair on a head which is partly or completely bald. Virtually without electrostatic charge, and does not stand on end or stick together after brushing.

Description

Pour le remplacement des cheveux humains chez un chauve, on a déjà proposé d'implanter en profondeur dans le cuir chevelu des filaments capillaires en matière synthétique. For the replacement of human hair in a bald, it has already been proposed to implant deep into the scalp of synthetic hair capillaries.

L'implantation peut se faire par tout moyen percutané par exemple à l'aide d'une aiguille à encoche. The implantation can be done by any percutaneous means, for example using a notched needle.

Le choix de la matière n'est pas indifférent. Il faut qu'elle soit tolérée par l'organisme humain sans phénomène de rejet et qu'elle se prête à la coloration par des colorants bio-compatibles. The choice of material is not indifferent. It must be tolerated by the human body without rejection phenomenon and must be suitable for coloring with bio-compatible dyes.

On a utilité des acrylates, des polyamides ou des polyvinyles malgré certains inconvénients tels la différence d'aspect avec les cheveux naturels, la résistance mécanique et les possibilités de teinture, mais l'inconvénient majeur était la présence de charges électrostatiques nuisant à l'équilibre de la coiffure et pouvant aller jusqu'a la production d'étincelles. Acrylates, polyamides or polyvinyls have been used despite certain drawbacks such as the difference in appearance with natural hair, mechanical strength and dyeing possibilities, but the major drawback was the presence of electrostatic charges which adversely affected the balance. hairdressing and can go as far as producing sparks.

Le demandeur a étudié les propriétés des polybutylènes téréphtalates (PBT) et il a découvert que dans cette famille de polymères ceux qui ont une longueur de chaine suffisante permettent d'obtenir des filaments qui présentent une charge électrostatique quasiment nulle, tant à l'étant de base qu' après brossage, en évitant le hérissement ou au contraire la coalescence, ce qui est un résultat particulièrement important et inattendu. The applicant has studied the properties of polybutylenes terephthalates (PBT) and has discovered that in this family of polymers those which have a sufficient chain length make it possible to obtain filaments which have an almost zero electrostatic charge, both being base only after brushing, avoiding bristling or on the contrary coalescence, which is a particularly important and unexpected result.

A titre indicatif mais non limitatif, on peut mentionner les polymères (PBT) produits en particulier par la Société AKZO, Hollande, qui ont un poids moléculaire compris entre 8500 et 10.000 avec une longueur de chaine variant de 430 à 538 A".  As an indication but not limiting, we can mention the polymers (PBT) produced in particular by the company AKZO, Holland, which have a molecular weight between 8500 and 10,000 with a chain length varying from 430 to 538 A ".

Dans le choix du polymère utilisable on sera aussi guidé par l'étude de la charge de rupture du filament qui doit être de préférence égale ou supérieure à 250 grammes avec un coefficient d'élasticité de 36%. In the choice of the usable polymer, we will also be guided by the study of the breaking load of the filament which must preferably be equal to or greater than 250 grams with a coefficient of elasticity of 36%.

Il convient d'ajouter que ce matériau est bien toléré par l'organisme humain et qu'il se prête à la teinture par des colorants non organiques bio-compatibles. It should be added that this material is well tolerated by the human body and that it is suitable for dyeing with bio-compatible non-organic dyes.

Pour l'utiliser, après avoir teint le matériau dans la masse, on en fait des mono-filaments capillaires d'un diamètre de 85 à 100 microns, par extrusion ou par moulage. Ces filaments sont mis en place sur le cuir chevelu. Le maintien en place est assuré par enfouissage dans le cuir chevelu d'un noeud coulant, qui fait alors masse après resserement. To use it, after having dyed the material in the mass, it is made into capillary monofilaments with a diameter of 85 to 100 microns, by extrusion or by molding. These filaments are placed on the scalp. Keeping in place is ensured by burying in the scalp a slip knot, which then forms mass after tightening.

Le noeud implanté, se trouve, soit à l'une des extrémités soit au milieu du filament, selon que le type d'implantation sera simple ou double. The implanted node is located either at one end or in the middle of the filament, depending on whether the type of implantation will be single or double.

L'implantation se fait par le moyen mécanique cidessus indiqué mais peut aussi se faire par tout autre moyen physique ou chimique. The implantation is done by the mechanical means above indicated but can also be done by any other physical or chemical means.

En particulier, pour le maintien en place on peut recourir à l'utilisation de produits biologiques d'obturation à titre complémentaire de l'implantation percutanée.  In particular, for holding it in place, recourse can be had to the use of biological obturation products as a complement to percutaneous implantation.

Claims (4)

REVENDICATIONS 1. Des cheveux artificiels caractérisés en ce qu'ils sont constitués par des filaments dont la matière de base est un poly-butylène-téréphtalate. 1. Artificial hair, characterized in that it consists of filaments, the basic material of which is polybutylene terephthalate. 2. Des cheveux artificiels selon la revendication 1, caractérisés en ce que leur matière de base est un polybutylène-téréphtalate ayant un poids moléculaire compris entre 8500 et 10.000 avec une longueur de chaine variant de 430 à 538 A".  2. Artificial hair according to claim 1, characterized in that their basic material is a polybutylene terephthalate having a molecular weight of between 8,500 and 10,000 with a chain length varying from 430 to 538 A ". 3. Des cheveux artificiels selon les revendications 1 ou 2, caractérisés en ce que les filaments ont une grosseur d'environ 85 à 100 microns. 3. Artificial hair according to claims 1 or 2, characterized in that the filaments have a size of about 85 to 100 microns. 4. Procédé de remplacement des cheveux chez un chauve, total ou partiel, par implantation dans le cuir chevelu de filaments en matière artificielle, caractérisé en ce qu'on utilise, pour l'implantation, des filaments à base de poly-butylène-térêphtalate, selon l'une des revendications 1 à 3.  4. Method for replacing the hair in a bald, total or partial, by implantation in the scalp of filaments of artificial material, characterized in that filaments based on polybutylene terephthalate are used for implantation according to one of claims 1 to 3.
FR9214664A 1992-12-04 1992-12-04 Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments Withdrawn FR2698766A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9214664A FR2698766A1 (en) 1992-12-04 1992-12-04 Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9214664A FR2698766A1 (en) 1992-12-04 1992-12-04 Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments

Publications (1)

Publication Number Publication Date
FR2698766A1 true FR2698766A1 (en) 1994-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9214664A Withdrawn FR2698766A1 (en) 1992-12-04 1992-12-04 Artificial hair for treatment of baldness - made from synthetic material based on polybutylene terephthalate, extruded or moulded into capillary monofilaments

Country Status (1)

Country Link
FR (1) FR2698766A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906973A2 (en) * 1997-10-01 1999-04-07 Mimmo Peruffo Use of a thermoplastic product in the making of strings for musical instruments
EP1121946A2 (en) * 2000-02-03 2001-08-08 Shiro Yamada Artificial hair for implantation and process for producing the artificial hair

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906973A2 (en) * 1997-10-01 1999-04-07 Mimmo Peruffo Use of a thermoplastic product in the making of strings for musical instruments
EP0906973A3 (en) * 1997-10-01 1999-09-15 Mimmo Peruffo Use of a thermoplastic product in the making of strings for musical instruments
EP1121946A2 (en) * 2000-02-03 2001-08-08 Shiro Yamada Artificial hair for implantation and process for producing the artificial hair
EP1121946A3 (en) * 2000-02-03 2002-05-08 Shiro Yamada Artificial hair for implantation and process for producing the artificial hair
AU757542B2 (en) * 2000-02-03 2003-02-27 Shiro Yamada Artificial hair for implantation and process for producing the artificial hair

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