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Head hair dyeing method

a dyeing method and head hair technology, applied in the field of head hair dyeing method, can solve the problems of uneven dyeing, difficult to evenly apply these compositions to the head hair, and excessive pressure on the internal pressure of the pressure-tight container

Inactive Publication Date: 2010-10-07
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While liquid or creamy hair dye compositions have been widely used so far, it is difficult to apply these compositions to the head hair evenly.
However, those of a two-part aerosol type have such problems that uneven bleaching or uneven dyeing is likely to occur due to an inconsistent mixing ratio of a first part and a second part, a pressure-proof metal container or the like is oxidized and corroded by hydrogen peroxide, and the internal pressure of the pressure-tight container is excessively increased by degradation of hydrogen peroxide.
Furthermore, since such a one-part non-aerosol type has no or weak bleaching ability, it is difficult to achieve a great change in the color tone by one procedure.
Therefore, a problem arises, i.e., a hair dyeing operation tends to be cumbersome since a hair dye is required to be left to develop for a long time and the procedure is required to be repeated after application.
Meanwhile, all of these two-part aerosol type hair dyes, one-part non-aerosol hair dyes and two-part non-aerosol hair dyes, by which the hair dyes are discharged as foam from foamer containers, still suffer a common problem, i.e., it is difficult to adjust foam quality by which easiness of discharging from a container and operatability on the head hair are well-balanced.
However, a careful operation is still required for even application, and an alternative dyeing method has been needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 2

[0099]A first part and a second part of a two-part hair dyeing composition having the composition shown in Table 2 were prepared. These parts were filled in the same containers as in Example 1. Further, the same squeeze foamer as in Example 1 was prepared.

TABLE 2Content offirst partFirst part(% by mass)Toluene-2,5-diamine0.14Para-aminophenol0.1Meta-aminophenol0.05Para-amino-ortho-cresol0.12,4-Diaminophenoxyethanol0.15hydrochlorideAqueous ammonia (28% by mass)6.0Ammonium hydrogen carbonate10.5Decylglucoside6.5Trideceth-90.6Laureth-231.8Myristyl alcohol0.2Propylene glycol4.0Ethanol9.0Polyquaternium-70.6Polyquaternium-220.4EDTA-4Na0.1Ascorbic acid0.3Anhydrous sodium sulfite0.4Fragrance0.5WaterBalanceContent insecond partSecond part(% by mass)Sodium laureth sulfate1.9Lauramide propyl betaine0.05Lauryl hydroxysultaine0.05Lauric acid0.04Cetanol1.5Etidronic acid0.04Phosphoric acid (75% by mass)Amountrequired toadjust pHto 3.8Sodium hydroxide solution (48% by0.01mass)Oxyquinoline sulfate0.0...

examples 3 to 7

[0103]A first part and a second part having the composition (% by mass) shown in Table 3 were prepared. As shown in FIG. 1, 40 g of a first part (A1) was filled in a first container (2), and 60 g of a second part (A2) in a second container (3) (which also serves as a squeeze container main body (4); internal volume, 210 mL). These containers were left in a refrigerator maintained at 5° C. together with a squeeze foamer (5) (S1 Squeeze Foamer produced by Daiwa Can Company) for 24 hours.

[0104]Immediately after these containers were removed from the refrigerator in a room at 20° C., the first part and the second part were mixed, and a squeeze foamer was mounted on the container, which was given to subjects (Japanese 20's-age females with black hair at a medium length). Subjects were asked to squeeze the container with one hand several times in upright position it and discharge 20 g of the mixture solution into a 1000 mL measuring cylinder. The total volume (mL) of liquid and foam at 1 ...

examples 8 to 15

[0116]First parts and second parts having the compositions (% by mass) shown in Tables 4 to 6 were prepared. As shown in FIG. 1, 40 g of a first part (A1) was filled in a first container (2), and 60 g of a second part (A2) in a second container (3) (which also serves as a squeeze container main body (4); internal volume, 210 mL). Further, a squeeze foamer (5) (S1 Squeeze Foamer produced by Daiwa Can Company) was prepared.

[0117]When subjects (Japanese 20's-age females with black hair at a medium length) received the filled first part and second part and the squeeze foamer and performed hair dyeing by the following procedure, the mixture solution was spread all over the head hair, no dripping was observed, and a uniform hair dyeing result was obtained without uneven dyeing.

[0118]Further, “irritation of scalp” during the hair dyeing was evaluated by subjects according to the following criteria. The results are shown in the columns below the composition in Table 4.

Irritation of Scalp

[01...

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Abstract

There is provided a head hair dyeing method using a two-part hair dye composition which contains a first part containing an alkali agent, a second part containing hydrogen peroxide and a non-aerosol type foamer container for discharging a mixture solution of the first part and the second part as foam, the composition containing a surfactant in at least one of the first part and the second part, the method including discharging the mixture solution as foam, applying the foam to the head hair, and then re-foamed on the head hair.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a head hair dyeing method using a two-part hair dye composition.BACKGROUND OF THE INVENTION[0002]While liquid or creamy hair dye compositions have been widely used so far, it is difficult to apply these compositions to the head hair evenly. In particular, in the case of consumers themselves applying a hair dye composition to their own head hair at the roots or on the back of the head, they need to acquire skills of, such as, “blocking” or using two mirrors facing each other (“two-mirror technique”), and a careful operation is required to apply the composition evenly.[0003]Accordingly, discharging a composition as foam in order to simplify the hair dyeing operation has been proposed, and hair dyes of a two-part aerosol type and those of a one-part non-aerosol type are known, for example. However, those of a two-part aerosol type have such problems that uneven bleaching or uneven dyeing is likely to occur due to an inconsist...

Claims

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Application Information

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IPC IPC(8): A61K8/18
CPCA61K8/046A61K8/19A61K8/22A61K8/415A61Q5/10A61K2800/87A61K2800/88A61Q5/08A61K8/42
Inventor FUJINUMA, HIROYUKIMATSUO, TAKASHIOGAWA, MASAHIKOIIZAKI, TAKESHISAIMIYA, HIROMIOKADA, KAZUHIROKOSHIKA, TOMOHITO
Owner KAO CORP
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