JPH03182203A - Treatment of keratin fiber - Google Patents

Abstract

PURPOSE:To uniformize, reinforce, and enhance the effect of chemical treatment of keratin fiber, by irradiating ultrasonic waves on the keratin fiber. CONSTITUTION:There are two cases in the chemical treatment of keratin fiber: one is the case where it is carried out by immersing the keratin fiber in a liquid, and the other is the case where it is carried out by applying a liquid on the keratin fiber. In the former case, ultrasonic waves are oscillated in the liquid so as to be propagated through the liquid and are irradiated on the keratin fiber. In the latter case, ultrasonic waves may be oscillated in the air so as to be irradiated on the keratin fiber through propagation in the air, or ultrasonic waves may be oscillated in the liquid so as to be irradiated on the keratin fiber through propagation in the air. In the case where a keratin fiber is subjected to ultrasonic treatment, the frequency of the ultrasonic waves of 25kHz or more will be sufficient. When a ultrasonic cleaning device is used, the intensity of the ultrasonic waves suitable for the clearing purpose will be sufficient. Thus, the keratin fiber is hardly impaired, and the chemical treatment of keratin fiber can be reinforced and enhanced.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a method for treating keratin fibers.

[Conventional technology]

Chemical processing of human hair, animal hair such as wool, bird feathers, textile materials and textile products obtained from them, such as fibers, filaments, threads, woven fabrics, non-woven fabrics, and fur, has not been done in the past. There is.

Specific examples include permanent wave treatment and straight perm treatment of hair, white set treatment of wool, bleaching of hair, bleaching of wool, hair coloring of hair (
(hair dyeing), wool dyeing, etc.

[Problem to be solved by the invention]

By adding physical treatment during the chemical treatment of this keratin fiber,
Attempts have been made to improve the effectiveness of chemical treatments, but so far nothing useful has been found.

Therefore, an object of the present invention is to perform a physical treatment during the chemical treatment of keratin fibers to equalize, reinforce, and enhance the effect of the chemical treatment.

[Means for Solving the Problems] The present invention achieves the above object by irradiating keratin fibers with ultrasonic waves during chemical treatment of keratin fibers.

Ultrasound is an elastic wave whose frequency exceeds the audible range. To oscillate this ultrasonic wave, piezoelectric vibrators (such as crystal) and electrostrictive vibrators (such as B a Ti Ox) are used at relatively high frequencies.
ferrite, etc.) are often used.

In addition, Hartmann fume sound generators, high-speed rotating sirens, etc. are used to generate ultrasonic waves of 50 kHz or less in air, and Janowski-Ballman sound sources are also used in liquids, but in the present invention, there are no particular restrictions on the oscillator itself. You can use a variety of things without receiving any.

The keratin fibers treated according to the present invention include human hair, animal hair such as wool, cashmere hair, angora hair, and mohair hair, feathers of birds such as chicken, duck, and goose, fiber materials and textile products obtained therefrom, Examples include fiber itself, filament, thread, woven fabric, knitted fabric, non-woven fabric, fur, etc.

In the present invention, the chemical treatment of keratin fibers refers not only to the reaction between the treated keratin fibers and the drug, but also to the process in which the chemicals themselves or to each other used in the treatment cause a chemical reaction, and the chemical reaction between the keratin fibers and the drug. It also includes chemical adsorption and desorption processes.

Typical specific examples include permanent waving of hair, straight perming, white setting of wool, pleaching of hair, bleaching of animal hair such as wool and cashmere, and hair coloring (dying) of hair. hair), animal hair dyeing, etc.

Chemical treatment of keratin fibers can be carried out by soaking the keratin fibers in a liquid or by applying a liquid to the keratin fibers. In the former case, ultrasonic waves are oscillated in the liquid and propagated through the liquid. It is preferable to irradiate the keratin fibers with ultrasonic waves.

In the latter case, ultrasonic waves may be oscillated from the air and irradiated to the keratin fibers by propagation through the air, or ultrasonic waves may be oscillated in a liquid and then propagated through the air to irradiate the keratin fibers.

In general, propagation in a liquid is more effective than propagation in a liquid because it can propagate ultrasonic waves with higher energy than propagation in the air, but propagation in the air can also satisfactorily achieve the purpose.

When carrying out ultrasonic treatment on a small scale, use a commercially available ultrasonic cleaner to immerse the keratin fibers in the treatment solution, immerse the container containing the treatment solution in water, and apply ultrasonic waves to the solution. It is sufficient to irradiate keratin fibers with medium propagation.

You can also hang keratin fibers wet with treatment solution, or
Alternatively, the ultrasonic wave may be placed on a net or placed in a container such as a glass beaker on the surface of water, and the ultrasonic waves oscillated in the water may be propagated through the air and irradiated to the keratin fibers. In this way, when the ultrasonic waves are propagated through the air and irradiated to the keratin fibers, it is preferable to irradiate the keratin fibers with the ultrasonic waves directly from the water surface.

In the present invention, when performing ultrasonic treatment on keratin fibers, the frequency of the ultrasonic waves may be 25 kl (z or higher).

When an ultrasonic cleaner is used, the intensity of the ultrasonic waves may be at the level used for the purpose of cleaning. For example, an output of about 20 to 200 W for a 5N cleaner may be sufficient.

In the case of this ultrasonic treatment, the chemical treatment of keratin fibers can be reinforced and enhanced without substantially damaging the keratin fibers, as shown in the following examples.

[Examples] Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

Example 1 In this Example 1, ultrasonic waves are irradiated onto hair during permanent waving treatment using a thioglycolic acid-based first agent and a sodium bromate-based second agent to examine the wave promoting effect.

First, we will first provide an overview of the test solution, test hair bundle, and test method, and then explain the details of the test method.

l) Test solution 1st part: Thioglycol #6% solution (added 0.25% surfactant and 0.1% chelating agent, adjusted to pH 9 with aqueous ammonia, surfactant is polyoxyethylene nonylphenyl) Ether, chelating agent is EDTA-2Na
) Second agent: 6% sodium bromate solution 2) Hair bundle test Using the hair of a person (a 10-year-old girl) with no experience in chemical treatment, 10 hairs with a length of about 18 cm were made into one bundle.

3) Test method: Apply the first agent to the above test hair bundle, and apply the first agent to the test hair bundle for 1 time.
After washing with water, apply the second agent, treat with the second agent for 15 minutes, wash with water, dry with a hair dryer, perform permanent wave treatment, and during that time, apply ultrasonic waves according to the specifications below. .

Hair bundle Nαl: Ultrasonic irradiation (60V) only during the first agent treatment Hair bundle Nα2: Ultrasonic irradiation (60V) during both the first agent treatment and the second agent treatment Hair bundle Nα3: Ultrasonic wave only during the first agent treatment Irradiation (120V)
Hair bundle level 4: Ultrasonic irradiation (120V) during both the first agent treatment and the second agent treatment Hair bundle No. 5: Ultrasonic irradiation (60V) only during the second agent treatment
Hair bundle FkL6: Ultrasonic irradiation (12ov) only during second agent treatment
) Hair bundle N+17: Number of chambers W (blank) for both the first agent treatment and the second agent treatment (blank) For the above ultrasonic treatment, a commercially available ultrasonic cleaner was used to prevent the sample (test hair bundle) from drying out. Therefore, the sample is wrapped in a lamp, placed in a wire mesh, the wire mesh is suspended in the space of an ultrasonic cleaner, and ultrasonic waves are oscillated in the water, propagated through the water and into the air, and the ultrasonic waves are irradiated onto the sample. went. The ultrasonic cleaner used was 100V with an output of 65W.
Adjust the voltage of this ultrasonic cleaner to 760 V → 39 W
, the zero oscillation frequency used at 120 V → 78 W is 46
It is kHz.

Next, details of the test method will be explained.

(1) Preparation of test hair bundles Hair of a person inexperienced in chemical processing (a 10-year-old girl) who has never had permanent waves or dyed hair (approximately 18 cm long) was folded into 10 bundles. These hair strands were washed in advance with a 2% aqueous solution of polyoxyethylene nonylphenyl ether, air-dried at room temperature,
This was used as a test hair bundle (test hair bundle).

(2) Test procedure Wet the above test hair bundle with water, and attach one end of it to a diameter of 10+a.
Fix the length of a plastic rod with adhesive tape to one end of the hair bundle, attach a 3.2g weight to the other end of the hair bundle, and rotate the rod while applying a certain amount of tension to the hair bundle. Wrap the hair bundle in a helical shape of 10 m long, fix the end of the hair bundle to the rod with adhesive tape, and then remove the weight. Apply the agent, wrap with a lamp, leave at room temperature for 15 minutes to perform the first agent treatment, wash with water, and apply 6% sodium bromate as an oxidizing agent to the hair bundles.
The hair bundle was coated with the second permanent wave agent, wrapped in a lamp, left at room temperature for 15 minutes to perform the second agent treatment, washed with water, dried, and then removed from the rod.

During the permanent wave treatment, the sample (test hair bundle) is subjected to ultrasonic treatment by irradiating the sample (test hair bundle) with ultrasonic waves according to the specifications described above.

(3) Measurement of waving effect Hair is subjected to permanent wave treatment as described above, washed with water, and dried while being wound around a rod. After drying, the hair bundle is gently removed from the rod.

After hanging the removed hair strands and leaving them until the next day, separate the hairs one by one, place each hair in its natural state on a horizontal table, and wave from the top to the end of the second wave on both the left and right sides of the hair. Measure the length to the top of the second wave (that is, excluding the first and last waves). Let the length of the left side thus measured be 23, and the length of the right side be h.

The hair is about 18CII, the diameter of the rod is 10m5+,
Since the pitch of the grooves is Ion-, the number of waves in the portion whose length was measured is four on each side. From this number of waves and the above lI and l□, the average wave length L is calculated using the following formula.

1, +1! Average wave length L = 4+4 Obtain the average wave length L of each hair as described above,
Furthermore, the average value of 10 hairs is determined for each treated hair, and the wave efficiency is determined using the following formula. In addition, the pitch when the hair bundle is wound around the rod in a spiral shape is 101III,
If the wave comes out as it is wound around the rod, the wave efficiency will be 100%.

Wave efficiency - 10/ L After leaving the waves in a stretched state overnight, the weight was removed, and after the hair itself had recovered its waves (24 hours), the newly formed waves were measured, and the wave efficiency was calculated in the same manner as above.

The waving efficiencies measured and calculated as described above are shown in Table 1. Both the waving efficiency on the next day and the waving efficiency after regeneration shown in Table 1 are the average values of 10 hairs.

As shown in Table 1, the hair bundle No. that was subjected to ultrasonic treatment,
1- Although the wave efficiency of Nα6 differs slightly depending on the timing and output of ultrasonic treatment, in any case,
The waving efficiency was greater than that of Hair Bunma 7 which was not subjected to ultrasonic treatment, and the wave promoting effect of ultrasonic treatment was recognized.

(5) Measurement of tensile strength of hair The tensile strength of the hair of 7 was measured on the hair bundle N11- which had been subjected to the permanent wave treatment as described above.
The degree of hair damage caused by ultrasonic treatment was investigated.

The tensile strength was measured using hair bundles N11l- and 7, each with 10 hairs, at 3 locations per hair (in other words, the number of samples was 30).
After measuring the diameter with a micrometer vertically and horizontally (in other words, in a cross shape), take an interval of about 1 inch including that position in the center, and place adhesive tape containing glass fiber on both sides of the diameter. The tensile strength of permanently waved hair was pasted from above and below over a width of 2C1, and the part where the adhesive tape was pasted was fixed on a tensile strength tester (manufactured by Fudo Kogyo Co., Ltd., Rheometer) and pulled at a pulling speed of 2cm/win. was measured.

The tensile speed was measured as described above, and the average value of the tensile strength per hair and the average value of the tensile strength per cross-sectional area were determined, and the results are shown in Table 2.

As shown in Table 2, hair bundle N11l subjected to ultrasonic treatment
The tensile strength of -NQ6 was almost the same as the tensile strength of hair Nα7 that had not been subjected to ultrasonic treatment, and it was revealed that hair damage caused by ultrasonic treatment was extremely small.

Example 2 Unlike Example 1 above, permanent wave treatment was performed by changing the combination of the first agent for permanent wave and the second agent for permanent wave, and both during the first agent treatment and the second agent treatment, the sample was The wave promotion effect of ultrasonic treatment was investigated by irradiating sound waves.

In this Example 2, the output at 1.1 hours before ultrasound was 100
W, the frequency is 39 kl (z), but other conditions, that is, the operating method during permanent wave processing,
The wave measurement, wave efficiency calculation method, etc. are the same as in the first embodiment.

The compositions of the first permanent wave agent and the second permanent wave agent used are as shown below. In addition,
% indicates weight %.

Permanent Wave 1 1-ADL-cystine 7.5% Ammonium bicarbonate 3.5% Monoethanolamine 0.75% EDTA
-2Na O, 1% polyoxyethylene (10) Lauryl ether 0.5% Keratin hydrolyzate 1.0% (Bromice WK-H manufactured by Acid Co., Ltd.) Fragrance iI! Permanent wave to make total 100% Cysteamine hydrochloride Ammonium carbonate Monoethanolamine EDTA-2Na Polyoxyethylene (3) Sodium ether sulfate Ammonia water 1 1-B 6.5% 2.0% 0.1% 0.1 % Lauryl 0.5% Permanent wave to 100% total at pH 7.5 1 1-C Sodium bisulfite 5.5% Monoethanolamine
2.0%EDTA-2Na
0.1% Trimethyl quaternary ammonium derivative of keratin hydrolyzate (bromois WK- manufactured by Acid Co., Ltd.) (Q) 1.0% 20%
Water to make NaOHPH 9.5 Permanent wave to make total 100% 2 ■-A Sodium bromate
6.0% polyoxyethylene (3) lauryl iA# sodium 3.0% malic acid 1.2% 20% NaOH
Water to pH 6.0 Permanent wave to total 100% 2 ■ 35% hydrogen peroxide 5.8% Collagen hydrolyzate 0.2% (Kaiwa Kaisha Bromois W-42) Citric acid
2.0% 20% NaOH Water to adjust pH to 3.5 Total to 100% Combinations of the first and second agents used for permanent wave treatment, presence or absence of ultrasonic treatment, and wave efficiency are shown in Table 3.
In Table 3, the first agent for permanent wave and the second agent
The combination of agents is shown as first agent/second agent.

Table 3 As shown in Table 3, in any combination, the wave efficiency is greater when ultrasonic treatment is applied than when no ultrasonic treatment is applied, and the wave promotion effect of ultrasonic treatment is was recognized.

Example 3 Using a commercially available home perm set (1st part: 6% by weight solution of ammonium thioglycolate, adjusted to pH 8.5, 2nd part: 6% by weight solution of sodium bromate), it was applied to a part of the test subject's hair. The first agent was applied and wound around a rod having a diameter of about 15III. After being left at room temperature for 15 minutes and treated with the first agent, the second layer was applied, and using a commercially available ultrasonic cleaner,
Tilt approximately 400 degrees from the horizontal and approximately 10 degrees from the second agent treated area.
cm#, transmit ultrasound at a frequency of 43 kl (z,
The output cuff was oscillated at 5W, and ultrasonic waves were applied to the second agent treated area for 10 minutes.
Irradiated for minutes. After the above treatment, the rod was removed from the hair, and the treated hair was washed with a commercially available shampoo.

Next, another part of the hair was subjected to a permanent wave treatment in the same manner as above, except that the ultrasonic treatment was not performed.

This permanent wave treatment was performed on 10 panelists (without explaining the effects of ultrasonic treatment), and 1
It was investigated whether or not it would be better to perform ultrasonic treatment on the items listed in Table 4 after the test, and the results are shown in Table 4.

As shown in Table 4, regarding the strength of the waves, a large number of people answered that ultrasonic treatment is better, demonstrating the wave promoting effect of ultrasonic treatment.

Example 4 Using 0°8N ammonia water containing 5% by weight of hydrogen peroxide as a bleaching liquid, 40% of the bleaching liquid was applied to 1.0g of hair.
1d, and decolorization treatment (pleach treatment) was performed at a liquid temperature of 40°C for 30 minutes.

During this decolorization process, the sample was irradiated with ultrasonic waves, and the degree of decolorization was compared with a case where the decolorization process was performed without ultrasonic irradiation.

The above ultrasonic treatment is performed by putting the sample being decolorized in a beaker, placing it in an ultrasonic cleaner, and applying an output of 100 W.
This was carried out by oscillating ultrasonic waves at a frequency of 39 kHz and irradiating the sample undergoing decolorization treatment with the ultrasonic waves.

When ultrasonication was applied during bleaching, hair bleaching progressed more and the color became lighter; however, in order to quantitatively compare hair bleaching caused by hydrogen peroxide, amino acid analysis of hair was conducted. We compared the positions of cystine in hair and cystic acid produced by its oxidation. The method for analyzing 71 amino acids is as follows.

6N salt M2- was added to 5110 cm of hair, and hydrolysis was carried out under reduced pressure at 120 DEG C. for 124 hours in a vacuum test tube for hydrolysis. The hydrolyzed solution was transferred to a flask, dehydrochlorinated with an evaporator, and analyzed using a fully automatic amino acid analyzer J CL-300 manufactured by JEOL Ltd. as a sample. The results are shown in Table 5.

Table 5 As shown in Table 5, when ultrasonic treatment is applied,
Low in cystine and high in cystic acid.

This indicates that the ultrasonic treatment promoted hair bleaching, that is, hair oxidation by hydrogen peroxide in the bleach solution.

Furthermore, for each of the 30 hairs bleached as described above, the tensile strength was measured in the same manner as in (5) of Example 1, and the hair %? The average value of the tensile strength per hair and the average value of the tensile strength per cross-sectional area were determined, and the degree of damage to the hair due to ultrasonic treatment was investigated. The results are shown in Table 6.

As shown in Table 6, the tensile strength when subjected to ultrasonic treatment is almost the same as the tensile strength when not subjected to ultrasonic treatment, indicating that hair damage caused by ultrasonic treatment is extremely small. revealed.

Example 5 Add and dissolve 5 µm of the acid dye Suminol Milling Red (manufactured by Shido Kagaku Co., Ltd.) in 100 mf of water, and add acetic acid to adjust the pH to 4.
Adjusted to.

After heating this solution to 95°C, add 1 g of pure wool woolen blanket and 1 g of pure wool yarn, put it in an ultrasonic cleaner, and set the frequency to 40°C.
Ultrasonic oscillation at kHz, output 200W, 95°C
The sample was subjected to ultrasonic treatment by irradiating the sample with ultrasonic waves for 75 minutes.

Those that were subjected to ultrasonic treatment during the dyeing process as described above,
Comparing the dyed items without ultrasonication, we found that those treated with ultrasonication had less uneven dyeing and were dyed more deeply than those without ultrasonication. It has been shown that this process is carried out uniformly and efficiently.

〔Effect of the invention〕

As explained above, in the present invention, when keratin fibers are chemically treated, the effect of the chemical treatment can be reinforced and enhanced by irradiating the keratin fibers with ultrasonic waves.

Claims (1)

[Claims] (1) A method for treating keratin fibers, which comprises irradiating the keratin fibers with ultrasonic waves during the chemical treatment of the keratin fibers.