U.S. patent application number 12/696498 was filed with the patent office on 2010-08-05 for device for heating keratinous fibers and methods for treating keratinous fibers.
Invention is credited to Maxime De Boni, Hiroshi TAKAHASHI.
Application Number | 20100192970 12/696498 |
Document ID | / |
Family ID | 41165350 |
Filed Date | 2010-08-05 |
United States Patent
Application |
20100192970 |
Kind Code |
A1 |
TAKAHASHI; Hiroshi ; et
al. |
August 5, 2010 |
DEVICE FOR HEATING KERATINOUS FIBERS AND METHODS FOR TREATING
KERATINOUS FIBERS
Abstract
The present disclosure relates to a method for treating
keratinous fibers wherein the keratinous fibers are exposed to
infrared radiation comprising wavelengths ranging from 700 to 1400
nanometers, such as ranging from 750 to 1400 nanometers, and
optionally wavelengths ranging from 1400 nanometers to 1
millimeter, for instance, ranging from 1400 to 25,000 nanometers,
such as ranging from 1400 to 15,000 nanometers. Also disclosed
herein is a a device for heating keratinous fibers, such as the
hair, for the implementation of the method according to the present
disclosure, comprising at least one emitter of infrared radiation,
wherein the infrared radiation comprises wavelengths ranging from
700 to 1400 nanometers, such as ranging from 750 to 1400
nanometers, and wavelengths ranging from 15,000 nanometers to 1
millimeter, such as ranging from 15,000 to 25,000 nanometers. Also
disclosed is a kit comprising at least one device for heating
keratinous fibers, and at least one composition for treating
keratinous fibers.
Inventors: |
TAKAHASHI; Hiroshi; (Tokyo,
JP) ; De Boni; Maxime; (Tokyo, JP) |
Correspondence
Address: |
FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER;LLP
901 NEW YORK AVENUE, NW
WASHINGTON
DC
20001-4413
US
|
Family ID: |
41165350 |
Appl. No.: |
12/696498 |
Filed: |
January 29, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61153473 |
Feb 18, 2009 |
|
|
|
Current U.S.
Class: |
132/211 ;
132/212 |
Current CPC
Class: |
A46B 15/0034 20130101;
A45D 7/06 20130101; A61Q 5/04 20130101; A45D 19/0041 20210101; A61K
8/00 20130101; A45D 2200/205 20130101; A61K 2800/81 20130101 |
Class at
Publication: |
132/211 ;
132/212 |
International
Class: |
A45D 7/02 20060101
A45D007/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 30, 2009 |
FR |
0950606 |
Claims
1. A method for treating keratinous fibers comprising: (a) placing
the keratinous fibers under tension, (b) applying a reducing
composition to the keratinous fibers, in order to reduce the
disulphide bonds of the keratin, optionally rinsing the keratinous
fibers, (c) heating the keratinous fibers by exposure to infrared
radiation comprising wavelengths ranging from 700 to 1400
nanometers, and optionally comprising wavelengths within the range
from 1400 nanometers to 1 millimeter, and (d) setting by oxidation,
in order to reform the said disulphide bonds, by applying an
oxidizing composition to the keratinous fibers.
2. The treatment method according to claim 1, wherein the infrared
radiation exhibits an intensity maximum within the wavelength range
from 700 to 1400 nanometers.
3. The treatment method according to claim 1, wherein the infrared
radiation does not comprise a wavelength within the range from 1400
nanometers to 1 millimeter.
4. The treatment method according to claim 1, wherein the infrared
radiation also comprises at least one wavelength within the range
from 1400 nanometers to 1 millimeter.
5. The treatment method according to claim 4, wherein the infrared
radiation does not exhibit an intensity maximum within the
wavelength range from 1400 nanometers to 1 millimeter.
6. The treatment method according to claim 4, wherein the infrared
radiation exhibits at least one intensity maximum within the
wavelength range from 1400 nanometers to 1 millimeter.
7. The treatment method according to claim 4, wherein the infrared
radiation comprises wavelengths ranging from 700 to 1400
nanometers.
8. The treatment method according to claim 1, wherein the intensity
of the radiation ranging from 1400 nanometers to 1 millimeter,
represents from 0% to 60%, of the intensity of the infrared
radiation.
9. The treatment method according to claim 1, wherein the intensity
of the infrared radiation of the device is adjusted so that the the
keratinous fibers are at a temperature ranging from 25.degree. C.
to 80.degree. C.
10. The treatment method according to claim 1, wherein the fibers
are heated for a period of time ranging from 1 to 45 minutes.
11. The treatment method according to claim 1, wherein the heating
of the keratinous fibers is done via a device that comprises at
least one emitter of infrared radiation, wherein the infrared
radiation comprises wavelengths ranging from 700 to 1400
nanometers, and wavelengths ranging from 15,000 nanometers to 1
millimeter.
12. The treatment method according to claim 11, wherein the device
comprises a first emitter of infrared radiation, the infrared
radiation comprising wavelengths ranging from 700 to 1400
nanometers, and a second emitter of infrared radiation, the
infrared radiation comprising wavelengths ranging from 15,000
nanometers to 1 millimeter.
13. The treatment method according to claim 11, wherein the device
is chosen from an infrared lamp, a hairdryer, a heating comb, a
heating brush, a hair iron, a styling hood dryer and a heating
roller.
14. A kit for treating keratinous fibers comprising: at least one
device for heating keratinous fibers comprising at least one
emitter of infrared radiation, the infrared radiation comprising
wavelengths ranging from 700 to 1400 nanometers, and wavelengths
ranging from 15,000 nanometers to 1 millimeter, and at least one
reducing composition for a permanent wave and at least one
oxidizing composition for a permanent wave.
15. The treatment method according to claim 1, wherein heating the
keratinous fibers by exposure to infrared radiation comprises
wavelengths ranging from 750 to 1400 nanometers.
16. The treatment method according to claim 2, wherein the infrared
radiation exhibits an intensity maximum within the wavelength range
from 750 to 1400 nanometers.
17. The treatment method according to claim 3, wherein the infrared
radiation does not comprise a wavelength within the wavelength
range from 1400 nanometers to 15,000 nanometers.
18. The treatment method according to claim 4, wherein the infrared
radiation also comprises wavelengths within the wavelength range
from 1400 to 15,000 nanometers.
19. The treatment method according to claim 5, wherein the infrared
radiation does not exhibit an intensity maximum within the
wavelength range from 1400 to 15,000 nanometers.
20. The treatment method according to claim 6, wherein the infrared
radiation exhibits at least one intensity maximum within the
wavelength range from 1400 to 15,000 nanometers.
21. The treatment method according to claim 7, wherein the infrared
radiation comprises wavelengths ranging from 15,000 to 25,000
nanometers.
22. The treatment method according to claim 8, wherein the
intensity of the radiation within the wavelength range from 1400
nanometers to 1 millimeter, represents from 10% to 40% of the
intensity of the infrared radiation.
23. The treatment method according to claim 9, wherein the
keratinous fibers are at a temperature ranging from 25.degree. C.
to 60.degree. C.
24. The treatment method according to claim 10, wherein the fibers
are heated for a period of time ranging from 10 to 30 minutes.
Description
[0001] This application claims benefit of U.S. Provisional
Application No. 61/153,473, filed Feb. 18, 2009. This application
also claims benefit of priority under 35 U.S.C. .sctn.119 to French
Patent Application No. 0950606, filed Jan. 30, 2009.
[0002] The present disclosure relates to a device for heating
keratinous fibers and methods for heat treating keratinous
fibers.
[0003] There are various methods for treating human keratinous
fibers in order to change its appearance, for example, changing the
color of fibers, such as dyeing of the fibers (oxidation dyeing or
direct dyeing) and bleaching of the fibers. Non-limiting examples
of processes which may make it possible to modify the shape of the
fibers, such as permanent waving and hair straightening or
smoothing, may involve bringing the fibers into contact with a very
strongly alkaline composition comprising hydroxides with the result
of converting the disulphide bridges by lanthionization. These
treatments may also have the aim of cleaning the keratinous fibers,
of protecting or preserving the keratinous fibers or of improving
their cosmetic properties, for example conditioning treatments or
treatments for protecting against ultraviolet radiation.
[0004] Furthermore, it is known to use, during these various
cosmetic treatments, devices for heating keratinous fibers, for
example a hairdryer, a hair iron or heating rollers.
[0005] Among the various cosmetic treatments known, the lasting
modification of the shape of the fibers is one of the most
well-developed applications. The hold of the hairstyle over time,
the effectiveness of the hair shaping in terms of curling and the
impact on the fibers (such as in terms of embrittling or degrading
the fibers) are major criteria for this type of treatment, for
instance for the treatments using reducing agents (permanent wave
and smoothing products) or highly alkaline agents (hair
straightening products). Methods associated with these products
have, for example, been developed in order to increase their
effectiveness, such as hot perming.
[0006] In comparison with a conventional cold perming method, hot
perming may improve effectiveness of curling of the perm and the
hold over time of the hairstyle. However, as the keratinous fibers
are heated at a relatively high temperature (for instance at a
temperature up to 90-110.degree. C.) and as the duration of heating
is relatively long (on average between 20 and 30 minutes for the
heating stage), the keratinous fibers may be subjected to
significant degradation which may not allow the users to repeat the
method or alternatively combine this method with other treatments,
such as dyeing or bleaching.
[0007] The use of far infrared radiation to heat the hair is
discussed in the art. In addition near infrared radiation, and a
treatment composition capable of being modified by the near
infrared radiation are also discussed in the art.
[0008] However, the products and methods described and known in the
art may offer correct performances only on the day of the
treatment. Furthermore, there may be disadvantages undersirable to
users, for example:
[0009] a high level of degradation of the keratinous fibers, for
example in repeated applications or in combination with other
treatments, such as oxidation dyeing,
[0010] insufficient hold over time under restrictive conditions
(mechanical tension during blow drying, repeated shampooing
operations, exposure to light), and
[0011] the absence of a beneficial role with regard to the cosmetic
condition, such as an absence of an improvement, during the
heating, of the effect contributed by a treatment composition
previously applied to the keratinous fibers.
[0012] Therefore, the aim of the present disclosure is to enhance
the treatment of keratinous fibers, such as the hold over time and
the effectiveness of the treatment, while limiting the degradation
of the fibers.
[0013] Thus, disclosed herein is a method for the treatment of
keratinous fibers, such as the hair, wherein the keratinous fibers
are exposed to radiation in the near infrared and optionally to
radiation in the middle and/or far infrared.
[0014] For example, the near infrared radiation comprises
wavelengths ranging from 700 to 1400 nanometers, such as ranging
from 750 to 1400 nanometers. The middle infrared radiation
comprises wavelengths ranging from 1400 nanometers to 15,000
nanometers and the far infrared radiation comprises wavelengths
ranging from 15,000 nanometers to 1 millimeter.
[0015] Thus, one aspect of the present disclosure is a treatment
method for exposing the keratinous fibers to infrared radiation
comprising wavelengths ranging from 700 to 1400 nanometers, such as
ranging from 750 to 1400 nanometers. The infrared radiation can
additionally comprise wavelengths ranging from 1400 nanometers to 1
millimeter, for example, ranging from 1400 to 25,000 nanometers,
such as ranging from 1400 to 15,000 nanometers.
[0016] Another aspect of the present disclosure is a device for
heating keratinous fibers, such as the hair, for the implementation
of the methods disclosed herein, wherein the device comprises at
least one emitter of infrared radiation comprising wavelengths
ranging from 700 to 1400 nanometers, such as from 750 to 1400
nanometers, and wavelengths ranging from 15,000 nanometers to 1
millimeter, such as ranging from 15,000 to 25,000 nanometers.
[0017] The present disclosure also relates to a kit for treating
keratinous fibers comprising:
[0018] at least one device for heating keratinous fibers according
to the present disclosure, and
[0019] at least one composition for treating keratinous fibers.
[0020] In accordance with the present disclosure, the composition
for treating keratinous fibers can be chosen from a direct dyeing
composition, an oxidation dyeing composition, a reducing
composition for a permanent wave, an oxidizing composition for a
permanent wave, a bleaching composition, a conditioning
composition, such as a conditioner, for example a rinse-out or
leave-in care product, a cleaning composition, such as a shampoo, a
styling composition or a composition for protecting from
ultraviolet radiation.
[0021] As used herein, "heating keratinous fibers" is understood to
mean a rise in the temperature of the fibers treated. This heating
may optionally result in partial or complete evaporation of a
treatment composition applied previously to the fibers, that is to
say may result in partial or complete drying of the keratinous
fibers.
[0022] The use of near infrared radiation can make it possible to
significantly reduce the duration of heating of the keratinous
fibers, even at a low temperature, for instance by efficient
heating, by the near infrared radiation, inside the keratinous
fibers. This is because, without being bound by theory, in
comparison with middle or far infrared radiation, near infrared
radiation exhibits a depth of penetration inside the keratinous
fibers which is greater, thus making it possible not to act solely
at the surface.
[0023] The use of near infrared radiation can make it possible, for
instance to have rapid heating, even at low temperature (for
example, at temperatures ranging from 25.degree. C. to 80.degree.
C., such as ranging from 25.degree. C. to 60.degree. C.), and to
obtain a lasting modification to the shaping of the hair without
causing additional damage, for example due to an excessively high
temperature, such as over 80.degree. C. or even greater than
60.degree. C.
[0024] The infrared radiation used during the treatment method
according to the present disclosure, may exhibit a first intensity
maximum lying at a wavelength within the range ranging from 700 to
1400 nanometers, such as ranging from 750 to 1400 nanometers, which
belong to the near infrared range. The presence of this first
intensity maximum in the infrared radiation indicates that the near
infrared radiation is present in an amount sufficient to confer the
effects described above on the total infrared radiation. For
instance, it is possible to choose the intensity of this first
maximum so that the effective heating of the keratinous fibers by
the near infrared radiation is predominant in the heating method.
The infrared radiation then may not comprise a wavelength range
ranging from 1400 nanometers to 1 millimeter, for example, ranging
from 1400 to 25,000 nanometers, such as ranging from 1400 to 15,000
nanometers. Alternatively, the infrared radiation may comprise
middle and/or far infrared radiation, that is to say the infrared
radiation may comprise wavelengths ranging from 1400 nanometers to
1 millimeter, which does not exhibit an intensity maximum in this
wavelength range.
[0025] The infrared radiation can also exhibit at least one other
intensity maximum lying at a wavelength within the wavelength range
ranging from 1400 nanometers to 1 millimeter, such as ranging from
1400 to 25,000 nanometers, for instance ranging from 1400 to 15,000
nanometers. The wavelength range ranging from 1400 nanometers to 1
millimeter corresponds, as indicated above, to the middle and far
infrared radiation. The presence of at least one second maximum in
this wavelength range indicates that the heating stage is not
carried out solely by the near infrared radiation. The middle
and/or far infrared radiation also participates in the heating
method, for instance by a surface action. The presence of this or
these additional intensity maxima also indicates that the middle
and/or far infrared radiation is not solely a consequence of the
emission of the near infrared radiation but is intentionally
present in the infrared radiation.
[0026] In this case, the intensity of the additional intensity
maximum or maxima may be lower than that of the first maximum.
[0027] According to at least one embodiment of the present
disclosure, the infrared radiation comprises wavelengths ranging
from 700 to 1400 nanometers, for example, ranging from 750 to 1400
nanometers, and wavelengths ranging from 1400 to 15 000 nanometers,
such as ranging from 1400 and 3000 nanometers. In this embodiment,
the near infrared radiation is combined with middle infrared
radiation.
[0028] According to another embodiment of the present disclosure,
the infrared radiation comprises wavelengths ranging from 700 to
1400 nanometers, for instance, ranging from 750 to 1400 nanometers,
and wavelengths ranging from 15,000 nanometers to 1 millimeter, for
example, ranging from 15,000 to 25,000 nanometers. In this
embodiment, the near infrared radiation is combined with far
infrared radiation.
[0029] The intensity of the radiation within the wavelength range
ranging from 1400 nanometers to 1 millimeter, such as ranging from
1400 to 25,000 nanometers, may represent from 0% to 60%, for
example from 10% to 40%, of the intensity of the infrared
radiation. The intensity of the near infrared radiation is chosen,
for example, to be greater than that of the middle and/or far
infrared radiation. However, in so far as the wavelength range of
the near infrared radiation is very narrow in comparison with the
wavelength range of the middle and far infrared radiation, the sum
of the intensities of the middle and far infrared radiation may
optionally be greater than the intensity of the radiation of the
near infrared radiation.
[0030] In at least one embodiment of the present disclosure, the
heating device can comprise a first emitter emitting infrared
radiation ranging from 700 to 1400 nanometers, such as ranging from
750 and 1400 nanometers, and a second emitter emitting infrared
radiation ranging from 15,000 nanometers to 1 millimeter, such as
ranging from 15,000 to 25,000 nanometers. In at least one
embodiment, the heating device comprises two emitters which make it
possible to emit, on the one hand, near infrared radiation and, on
the other hand, far infrared radiation. It is thus understood that
the total infrared radiation may exhibit two intensity maxima each
situated within the emission range of the corresponding emitters.
Furthermore, the use of two separate emitters can make it possible
to modify in a simple way, the relative proportion of near infrared
radiation and far infrared radiation in the total radiation, such
as by modifying the electrical supply to the two emitters, and thus
their radiation intensity. It is thus possible to adjust the
proportions of the different types of infrared radiation in order
to obtain the desired effect, while limiting the damage to the
fibers.
[0031] According to the present disclosure, the heating device can
be in a form chosen from an infrared lamp, a hairdryer, a heating
comb, a heating brush, a hair iron, a styling hood dryer and a
heating roller.
[0032] The device according to the present disclosure can also
comprise a programmable timer capable of supplying the emitter for
a predetermined period of time. For example, the predetermined
period of time depends on the thermal inertia of the emitter. The
timer makes it possible to determine the duration of exposure to
the infrared radiation and thus the effectiveness of the heating
method. However, the device may comprise emitters exhibiting very
different thermal inertias, that is to say that one emitter may
require a certain time in order to begin to emit infrared radiation
while another emitter will emit more rapidly with an identical
electrical supply. Likewise, at the end of the method, one emitters
may require a certain time in order to no longer emit infrared
radiation while another emitter will rapidly cease to emit. When
the device radiates both near infrared radiation and far infrared
radiation, the timer can control these various types of radiation
optionally in an independent fashion, so as to obtain exposure to
the desired infrared radiation for the desired period of time.
[0033] According to at least one embodiment of the present
disclosure, the timer can also control the emitter(s) of the device
in order to expose the keratinous fibers first to near infrared
radiation and then to far infrared radiation, or vice versa. The
action of the two types of infrared radiation can then be decoupled
and the keratinous fibers can be exposed to these two types of
infrared radiation for different periods of time.
[0034] The intensity of the infrared radiation can be adjusted so
that the keratinous fibers are heated at a temperature ranging from
25.degree. C. to 80.degree. C., such as ranging from 25.degree. C.
to 60.degree. C. Accordingly, it may be possible to obtain heating
while limiting the temperature of the hair and thus while limiting
the embrittling or degradation of the hair.
[0035] The method according to the present disclosure can comprise
a stage wherein at least one treatment composition is also applied
to the fibers, before, during and/or after heating the fibers. For
instance, heating the fibers with infrared radiation may also
improve the effectiveness of the treatment composition, for
instance by making it possible to reinforce the penetration thereof
into the fibers or to activate the properties thereof.
[0036] According to the present disclosure, the treatment
composition can be chosen from a direct dyeing composition, an
oxidation dyeing composition, a reducing composition for a
permanent wave, an oxidizing composition for a permanent wave, a
bleaching composition, a conditioning composition, such as a
conditioner, for example a rinse-out or leave-in care product, a
cleaning composition, such as a shampoo, a styling composition or a
composition for protecting from ultraviolet radiation.
[0037] The method according to the present disclosure can also
comprise treating keratinous fibers comprising:
[0038] a) placing the keratinous fibers under tension,
[0039] b) applying a reducing composition to the keratinous fibers,
in order to reduce the disulphide bonds of the keratin, optionally
rinsing keratin fibers,
[0040] c) heating the keratinous fibers by exposure to infrared
radiation comprising wavelengths ranging from 700 to 1400
nanometers, such as ranging from 750 to 1400 nanometers, and
optionally wavelengths ranging from 1400 nanometers to 1
millimeter, for instance, ranging from 1400 to 25,000 nanometers,
such as ranging from 1400 to 15,000 nanometers, and
[0041] d) setting by oxidation, in order to reform the said
disulphide bonds, by application of an oxidizing composition to the
keratinous fibers.
[0042] This embodiment of the present disclosure may be used to
permanently wave keratinous fibers, which can improve the
effectiveness of curling of the hair shaping while limiting the
temperature of exposure of the keratinous fibers.
[0043] In at least one embodiment, the fibers are heated for a
period of time ranging from 1 to 45 minutes, such as a period of
time ranging from 10 to 30 minutes.
[0044] Also disclosed herein is a kit for treating keratinous
fibers comprising at least one device for heating keratinous fibers
according to the present disclosure, and at least one composition
for treating keratinous fibers. The at least one composition may be
chosen from, for instance, a direct dyeing composition, an
oxidation dyeing composition, a reducing composition for a
permanent wave, an oxidizing composition for a permanent wave, a
bleaching composition, a conditioning composition, such as a
conditioner, for example a rinse-out or leave-in care product, a
cleaning composition, such as a shampoo, a styling composition or a
composition for protecting from ultraviolet radiation.
[0045] The at least one composition can be provided in various
forms, such as a lotion, a cream, a gel or in any other form
appropriate for application to keratinous fibers.
[0046] The at least one composition is packaged in a separate
compartment or container or device, optionally accompanied by
appropriate applicators, such as brushes, including fine brushes,
or sponges. It can also be packaged under pressure in an aerosol
container in the presence of a propellant and can form a foam.
[0047] Notwithstanding that the numerical ranges and parameters
setting forth the broad scope of the disclosure are approximations,
unless otherwise indicated the numerical values set forth in the
specific examples are reported as precisely as possible. Any
numerical value, however, inherently contains certain errors
necessarily resulting from the standard deviation found in their
respective testing measurements.
[0048] The following examples serve to illustrate embodiments of
the present disclosure without, however, exhibiting a limiting
nature.
EXAMPLES
Examples 1 to 4
[0049] The following compositions were prepared (contents expressed
as percentage of active material)
TABLE-US-00001 Composition (i) (reducing composition): Thioglycolic
acid 6.7 Ammonium bicarbonate 2.7 Pentasodium pentetate (at 40% in
aqueous solution) 0.4 Ammonia (at 20% in aqueous solution) q.s.p.
pH = 8.7 Demineralized water q.s.p. 100 Composition (ii) (oxidizing
composition: Sodium bromide 8 Trisodium phosphate 0.4 Sodium
phosphate 0.4 Citric acid q.s.p. pH = 7.5 Demineralized water
q.s.p. 100
Example 1
Inventive
[0050] The composition (i) was applied for 15 minutes to 2.5 g of
locks of natural hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed.
[0051] The hair was subsequently subjected to radiation emitted by
an infrared lamp (QIR 100V-500 W/D from Ushio) with a power of 500
W, with a maximum intensity at a wavelength of 1200 nm and an
intensity of 3.2 W/(cm.sup.2.sr..mu.m), for 30 minutes. The lamp
provided a broad infrared spectrum extending from the near infrared
to the far infrared, with an intensity maximum situated in the near
infrared. The intensity of the radiation was adjusted so that the
temperature the hair was heated at did not exceed 50.degree. C.
[0052] The composition (ii) was subsequently applied for 10
minutes. After the leave-in time, the hair was removed from the
permanent wave roller, rinsed and dried.
Example 2 (Comparative)
[0053] The composition (i) was applied for 15 minutes to 2.5 g of
locks of natural hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed and the composition (ii) was applied for
10 minutes. The hair was then removed from the permanent wave
roller, rinsed and dried.
Example 3 (Comparative)
[0054] The composition (i) was applied for 15 minutes to 2.5 g of
locks of natural hair of Japanese type. After the leave-in time,
the hair was rinsed and then wound on a permanent wave roller with
a diameter of 1.7 cm.
[0055] The hair roller was then heated at 90.degree. C. for 30
minutes (Digital Perm device, ODIS-2 model, from Oohiro).
[0056] After the heating stage, the composition (ii) was applied
for 10 minutes. The hair was then removed from the permanent wave
roller, rinsed and dried.
Example 4 (Comparative)
[0057] The composition (i) was applied for 15 minutes to 2.5 g of
locks of natural hair of Japanese type. After the leave-in time,
the hair was rinsed and then wound on a permanent wave roller with
a diameter of 1.7 cm.
[0058] The hair roller was then heated at 50.degree. C. for 30
minutes (Digital Perm device, ODIS-2 model, from Oohiro). It should
be noted that it generally takes more than 60 minutes to dry the
hair set on a heating roller at 50.degree. C.
[0059] After the heating stage, the composition (ii) was applied
for 10 minutes. The hair was then removed from the permanent wave
roller, rinsed and dried.
Evaluation of the Permanent Wave:
[0060] A test of hold of the curls was carried out on the permed
hair according to Examples 1 to 4 described above. The locks of
hair were kept straight under tension for five hours with a
relative humidity of approximately 100%. The hold of the curls was
evaluated by comparison of the shape of the hair before and after
the test.
[0061] In order to evaluate the impact of the perming method on the
hair, the effectiveness of curling after repeated applications
(three permanent waves) was also measured.
[0062] The results are given in Table I below:
TABLE-US-00002 TABLE I Effectiveness of Effectiveness of curling
after one curling after three permanent wave Hold of the curls
permanent waves Example 1 Very good Very good Good (inventive)
Example 2 Good Poor Poor (comparative) Example 3 Very good Very
good Very poor (comparative) Example 4 Good Poor Very Poor
(comparative)
Examples 5 to 8
[0063] The following compositions were prepared (contents expressed
as percentage of active material):
TABLE-US-00003 Composition (iii) (reducing composition): Cysteine
6.06 Ammonium bicarbonate 2.8 Pentasodium pentetate (at 40% in
aqueous solution) 0.4 Monoethanolamine 2.8 Demineralized water
q.s.p. 100 Composition (iv) (reducing composition):
N-acetylcysteine 8.15 Ammonium bicarbonate 2.8 Pentasodium
pentetate (at 40% in aqueous solution) 0.4 Monoethanolamine 2.8
Demineralized water q.s.p. 100
[0064] For these examples, natural hair of Japanese type was
bleached using a commercial hair bleaching product (Platifiz.RTM.
Compact from L'Oreal). The bleaching took place at 40.degree. C.
for 30 minutes.
Example 5
Inventive
[0065] The composition (iii) was applied for 15 minutes to 1 g of
locks of bleached hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed.
[0066] The hair was then subjected to radiation emitted by an
infrared lamp (QIR 100V-500 W/D from Ushio, with a power of 500 W,
with a maximum intensity at a wavelength of 1200 nm and an
intensity of 3.2 W/(cm.sup.2.sr..mu.m)), for 30 minutes. The
intensity of the radiation was adjusted so that the heating
temperature of the hair did not exceed 50.degree. C.
[0067] The composition (ii) was subsequently applied for 10
minutes. After the leave-in time, the hair was removed from the
permanent wave roller, rinsed and dried.
Example 6 (Comparative)
[0068] The composition (iii) was applied for 15 minutes to 1 g of
locks of bleached hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed and then the composition (ii) was applied
for 10 minutes. After the leave-in time, the hair was removed from
the permanent wave roller, rinsed again and dried.
Example 7
Inventive
[0069] The composition (iv) was applied for 15 minutes to 1 g of
locks of bleached hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed.
[0070] The hair was then subjected to radiation emitted by an
infrared lamp (QIR 100V-500 W/D from Ushio, with a power of 500 W,
with a maximum intensity at a wavelength of 1200 nm and an
intensity of 3.2 W/(cm.sup.2.sr..mu.m)), for 30 minutes. The
intensity of the radiation was adjusted so that the heating
temperature of the hair did not exceed 50.degree. C.
[0071] The composition (ii) was subsequently applied for 10
minutes. After the leave-in time, the hair was removed from the
permanent wave roller, rinsed and dried.
Example 8 (Comparative)
[0072] The composition (iv) was applied for 15 minutes to 1 g of
locks of bleached hair of Japanese type wound beforehand on a
permanent wave roller with a diameter of 1.7 cm. After the leave-in
time, the hair was rinsed and then the composition (ii) was applied
for 10 minutes. After the leave-in time, the hair was removed from
the permanent wave roller, rinsed again and dried. The degree of
curling was low.
Evaluation of the Permanent Wave:
[0073] The test of hold of the curls was carried out on the permed
hair according to Examples 5 to 8 described above.
[0074] The results are given in Table II below:
TABLE-US-00004 TABLE II Effectiveness of curling after a permanent
wave Hold of the curls Example 5 Very good Very good (inventive)
Example 6 Very good Poor (comparative) Example 7 Good Good
(inventive) Example 8 Good Very poor (comparative)
Example 9
[0075] The following composition was prepared (contents expressed
as percentage of active material):
TABLE-US-00005 Thioglycolic acid 1.5 Cysteine 0.15 Ammonium
bicarbonate 2.7 Pentasodium pentetate (at 40% in aqueous solution)
0.4 Ammonia (at 20% in aqueous solution) q.s.p. pH = 8
Demineralized water q.s.p. 100
[0076] The composition was applied for 15 minutes to 1 g of locks
of bleached hair of Japanese type wound beforehand on a permanent
wave roller with a diameter of 1.7 cm. During the leave-in time,
the hair was subjected to radiation emitted by an infrared lamp
(QIR 100V-500 W/D from Ushio, with a power of 500 W, with a maximum
intensity at a wavelength of 1200 nm and an intensity of 3.2
W/(cm.sup.2.sr..mu.m)).
[0077] The same composition was also applied to 1 g of locks of
bleached hair of Japanese type for 15 minutes but without infrared
radiation.
[0078] After the leave-in time, the hair was rinsed and then the
composition (ii) was applied for 10 minutes. The hair was then
removed from the permanent wave roller, rinsed and dried.
[0079] It was found, in the case of the hair subjected to radiation
with an intensity maximum in the near infrared, that the
effectiveness of curling was better than in the case where the hair
was not subjected to infrared radiation.
Example 10
[0080] The following composition was prepared (contents expressed
as percentage of active material):
TABLE-US-00006 p-Phenylenediamine 0.65 Resorcinol 0.66
Hydroxyethylcellulose (720 000) 0.72 Decyl polyglucoside 9.0 Benzyl
alcohol 4.0 Preservatives 0.06 Ammonia 2 Demineralized water q.s.p.
100
[0081] The composition was mixed, weight for weight, with 20
volumes of oxidizing solution and then applied, for 30 minutes, to
1 g of locks of hair (90% white hairs) of Caucasian type. During
the leave-in time, the hair was subjected to radiation emitted by
an infrared lamp (QIR 100V-500 W/D from Ushio, with a power of 500
W, with a maximum intensity at a wavelength of 1200 nm and an
intensity of 3.2 W/(cm.sup.2.sr..mu.m)).
[0082] The same composition was also applied to 1 g of locks of
hair (90% white hairs) of Caucasian type for 30 minutes but without
infrared radiation.
[0083] After the leave-in time, the hair was rinsed and dried.
[0084] It was found, in the case of the hair subjected to radiation
with an intensity maximum in the near infrared, that the shade was
much darker green than in the case where the hair was not subjected
to infrared radiation.
Example 11
[0085] The following composition was prepared (contents expressed
as percentage of active material):
TABLE-US-00007 p-Aminophenyl 0.65
1-(.beta.-Hydroxyethyloxy)-2,4-diaminobenzene 1.45
Hydroxyethylcellulose (720 000) 0.72 Decyl polyglucoside 9.0 Benzyl
alcohol 4.0 Preservatives 0.06 Ammonia 2 Demineralized water q.s.p.
100
[0086] The composition was mixed, weight for weight, with 20
volumes of oxidizing solution and then applied, for 30 minutes, to
1 g of locks of hair (90% white hairs) of Caucasian type. During
the leave-in time, the hair was subjected to radiation emitted by
an infrared lamp (QIR 100V-500 W/D from Ushio, with a power of 500
W, with a maximum intensity at a wavelength of 1200 nm and an
intensity of 3.2 W/(cm2.sr..mu.m)).
[0087] The same composition was also applied to 1 g of locks of
hair (90% white hairs) of Caucasian type for 30 minutes but without
infrared radiation.
[0088] After the leave-in time, the hair was rinsed and dried.
[0089] It was found, in the case of the hair subjected to radiation
with an intensity maximum in the near infrared, that the shade was
a more intense coppery red than in the case where the hair was not
subjected to infrared radiation.
* * * * *