1. A method for colouring hair comprising the steps of:
i) providing a first hair colouring composition and a second hair colouring composition, wherein the pH of the second hair colouring composition is lower than the pH of the first hair colouring composition;
ii) applying a portion or all of the first hair colouring composition to the hair;
iii) applying a portion or all of the second hair colouring composition to the hair,
wherein each the first and the second hair colouring compositions comprises one or more oxidizing agents and one or more compounds selected from the group consisting of oxidative dye precursors, alkalizing agents and mixtures thereof.
2. The method according to claim 1, wherein the method further comprises the step of:
iv) rinsing the hair.
3. The method according to claim 1, wherein the portion or all of the first hair colouring composition is applied to the hair roots and the portion or all of the second hair colouring composition is applied to the hair lengths and tips.
4. The method according to claim 1, wherein the second hair colouring composition produces on the hair a coloration such that the colour variation between hair coloured with the second hair colouring composition and hair coloured with the first hair colouring composition is greater than or equal to 1, as measured according to the colour variation test method.
5. The method according to claim 1, wherein the second hair colouring composition produces on the hair a coloration such that the colour lightness difference between hair coloured with the second hair colouring composition and hair coloured with the first hair colouring composition is greater than 0, as measured according to the colour variation test method.
6. The method according to claim 1, wherein the difference of pH between the first hair colouring composition and the second hair colouring composition is at least 0.25.
7. The method according to claim 1, wherein the pH of each of the first and second hair colouring compositions is from 3 to 11.
8. The method according to claim 2, wherein the method further comprises the steps of:
a) mixing a first dye composition with a first developer composition to obtain the first hair colouring composition, wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents;
b) mixing a second dye composition with a second developer composition to obtain the second hair colouring composition, wherein the second dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the second developer composition comprises one or more oxidizing agents, wherein the pH of the second developer composition is lower than the pH of the first developer composition,
wherein step b) is performed between steps ii) and iii) and the method further comprises the steps of waiting for a time period of from 10 min to 40 min, which is performed between steps ii) and iii) and waiting for a time period of from 5 min to 20 min which is performed between steps iii) and iv).
9. The method according to claim 2, wherein the method further comprises the steps of:
a) mixing a first dye composition with a first developer composition to obtain the first hair colouring composition, wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents;
b) mixing a second dye composition with a second developer composition to obtain the second hair colouring composition, wherein the second dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the second developer composition comprises one or more oxidizing agents, wherein the pH of the second developer composition is lower than the pH of the first developer composition,
wherein step b) is performed between steps ii) and iii) and step b) is performed immediately after step ii) and step iii) is performed immediately after step b) and the method further comprises the step of waiting for a time period of from 5 min to 40 min which is performed between steps iii) and iv).
10. The method according to claim 2, wherein:
the method further comprises the step of mixing a first dye composition with a first developer composition to obtain the first hair colouring composition, wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents and
in step ii), a first portion of the first hair colouring composition is applied to the hair and a second portion of the first hair colouring composition is retained and
the method further comprises the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition.
11. The method according to claim 10, wherein the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition is performed between steps ii) and iii) and the method further comprises the step of waiting for a time period of from 10 min to 40 min which is performed between steps ii) and iii) and waiting for a time period of from 5 min to 20 min which is performed between steps iii) and iv).
12. The method according to claim 10, wherein the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition is performed immediately after step ii) and immediately before step iii) and the method further comprises the step of waiting for a time period of from 5 min to 40 min, which is performed between steps iii) and iv).
13. The method according to claim 10, wherein the pH reducing agent is selected from the group consisting of acetic acid, acetyl mandelic acid, adipic acid, aluminum lactate, aluminum triformate, ammonium lactate, ammonium molybdate, ammonium nitrate, ammonium thiocyanate, ammonium vanadate, ascorbic acid, azelaic acid, babassu acid, bakuhan, benzilic acid, bismuth citrate, boric acid, calcium citrate, calcium dihydrogen phosphate, calcium phosphate, citric acid, diammonium citrate, dioleyl phosphate, disodium pyrophosphate, fumaric acid, galacturonic acid, glucoheptonic acid, glucuronic acid, glutaric acid, glycine, glycolic acid, glyoxylic acid, hydrobromic acid, hydrochloric acid, hydroxyethylpiperazine ethane sulfonic acid, isobutyric acid, lactic acid, lactobionic acid, magnesium glycinate, magnesium lactate, maleic acid, malic acid, malonic acid, maltobionic acid, metaphosphoric acid, monosodium citrate, mudstone powder, phenolsulfonphthalein, phenyl mercuric borate, phosphoric acid, phosphorus pentoxide, potassium bicarbonate, potassium biphthalate, potassium magnesium aspartate, potassium sodium tartrate, potassium tartrate, propane tricarboxylic acid, quinic acid, ribonic acid, sebacic acid, sodium aspartate, sodium bisulfate, sodium borate, sodium butoxyethoxy acetate, sodium calcium boron phosphate, sodium calcium copper phosphate, sodium calcium zinc phosphate, sodium citrate, sodium glycolate, sodium lactate, sodium phosphate, sodium succinate, succinic acid, sulfuric acid, tartaric acid, taurine, tea-hydroiodide, trisodium sulfosuccinate, triticum vulgare protein, triticum vulgare seed extract, uric acid, zinc hexametaphosphate and mixtures thereof.
14. The method according to claim 10, wherein the pH reducing agent is selected from the group consisting of citric acid, phosphoric acid, salicylic acid, etidronic acid, acetic acid, ascorbic acid, hydrochloric acid, sulfuric acid and mixtures thereof.
15. The method according to claim 10, wherein the pH reducing agent is provided as a solid or a liquid.
16. The method according to claim 10, wherein from 90% to 10% by weight of the first hair colouring composition is applied as a first portion to the hair.
17. The method according to claim 1, wherein the first and second hair colouring compositions are applied to the hair with a brush and bowl applicator or a container to which a nozzle or a separate applicator device such as a comb or a brush is attached.
18. A hair colouring kit comprising a first dye composition, a second dye composition, a first developer composition and a second developer composition, wherein each of the first and second dye compositions comprises one or more oxidative dye precursors and/or one or more alkalizing agents and each of the first and second developer compositions comprises one or more oxidizing agents, wherein the pH of the second developer composition is lower than the pH of the first developer composition.
19. A hair colouring kit comprising a first dye composition, a first developer composition and a pH reducing agent wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents and wherein the first dye composition, the first developer composition and the pH reducing agent are packaged separately.
結果 (
日本語) 1:
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1. 着色髪のステップを構成する方法:i) 最初毛髪着色組成物と前記第 2 の毛髪着色組成物の pH は最初毛髪着色組成物; の pH よりも低く、2 番目の髪着色組成を提供します。ii) 髪に組成を着色最初の髪の一部または全部を適用します。iii) 部分や、毛髪に組成を着色 2 番目の髪のすべてを適用すること前記それぞれ最初と 2 番目の髪の着色組成構成 1 つまたはより多くの酸化剤と酸化性染料前駆体から成る群から選択される 1 つまたは複数の化合物剤及びその混合物をアルカリ化します。2 請求項記載方法 1、方法は更に前記の手順:iv) リンス。最初の毛髪着色組成物の一部または全部を毛の根と部分または 2 番目の毛髪着色組成物のすべてに適用する前記請求項 1、3 の方法は、髪の長さとヒントに適用されます。4 法によると、請求項 1 に前記 2 番目の毛髪着色組成物を生成する髪に、着色色変化試験方法に従って測定される 2 番目の毛髪着色組成物で着色髪と最初の毛髪着色組成物と色の間のカラー バリエーションがより大きいまたは 1 に等しい。5. 請求項方法 1、前記 2 番目の毛髪着色組成物を生成する髪に、着色など、2 番目の毛髪着色組成物の色の髪の色の明度差と色変化試験方法に従って測定される最初の毛髪着色組成物で着色の髪は 0 より大きい。請求項 1、最初の毛髪着色組成物と 2 番目の毛髪着色組成物の pH の違いは、少なくとも前記 6. 方法 0.25。7. メソッドによると、請求項 1、前記それぞれの最初と 2 番目の髪の着色組成物の pH は 11 に 3。8. 請求項記載方法 2、方法は更に前記の手順:a) 着色組成物、該最初色素組成物を含む 1 つまたは複数の酸化性染料前駆体および/または 1 つまたはより多くのアルカリ化剤と最初の開発者組成で構成されて 1 つまたはより多くの酸化剤; 最初の髪を取得する最初の開発者の組成と最初の色素組成の混合b) 第二髪着色組成、前記第 2 色素組成物を含む 1 つまたは複数の酸化性染料前駆体および/または 1 つまたはよりアルカリ化剤と 2 番目の開発者組成で構成されて 1 つまたは複数の酸化剤、前記第 2 の開発者の組成物の pH は最初の開発者の組成物の pH よりも低いを取得する 2 番目開発者の組成を持つ 2 番目色素組成の混合,wherein step b) is performed between steps ii) and iii) and the method further comprises the steps of waiting for a time period of from 10 min to 40 min, which is performed between steps ii) and iii) and waiting for a time period of from 5 min to 20 min which is performed between steps iii) and iv).9. The method according to claim 2, wherein the method further comprises the steps of:a) mixing a first dye composition with a first developer composition to obtain the first hair colouring composition, wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents;b) mixing a second dye composition with a second developer composition to obtain the second hair colouring composition, wherein the second dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the second developer composition comprises one or more oxidizing agents, wherein the pH of the second developer composition is lower than the pH of the first developer composition,wherein step b) is performed between steps ii) and iii) and step b) is performed immediately after step ii) and step iii) is performed immediately after step b) and the method further comprises the step of waiting for a time period of from 5 min to 40 min which is performed between steps iii) and iv).10. The method according to claim 2, wherein:the method further comprises the step of mixing a first dye composition with a first developer composition to obtain the first hair colouring composition, wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents andin step ii), a first portion of the first hair colouring composition is applied to the hair and a second portion of the first hair colouring composition is retained andthe method further comprises the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition.11. The method according to claim 10, wherein the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition is performed between steps ii) and iii) and the method further comprises the step of waiting for a time period of from 10 min to 40 min which is performed between steps ii) and iii) and waiting for a time period of from 5 min to 20 min which is performed between steps iii) and iv).12. The method according to claim 10, wherein the step of adding a pH reducing agent to the second portion of the first hair colouring composition to obtain the second hair colouring composition is performed immediately after step ii) and immediately before step iii) and the method further comprises the step of waiting for a time period of from 5 min to 40 min, which is performed between steps iii) and iv).13. The method according to claim 10, wherein the pH reducing agent is selected from the group consisting of acetic acid, acetyl mandelic acid, adipic acid, aluminum lactate, aluminum triformate, ammonium lactate, ammonium molybdate, ammonium nitrate, ammonium thiocyanate, ammonium vanadate, ascorbic acid, azelaic acid, babassu acid, bakuhan, benzilic acid, bismuth citrate, boric acid, calcium citrate, calcium dihydrogen phosphate, calcium phosphate, citric acid, diammonium citrate, dioleyl phosphate, disodium pyrophosphate, fumaric acid, galacturonic acid, glucoheptonic acid, glucuronic acid, glutaric acid, glycine, glycolic acid, glyoxylic acid, hydrobromic acid, hydrochloric acid, hydroxyethylpiperazine ethane sulfonic acid, isobutyric acid, lactic acid, lactobionic acid, magnesium glycinate, magnesium lactate, maleic acid, malic acid, malonic acid, maltobionic acid, metaphosphoric acid, monosodium citrate, mudstone powder, phenolsulfonphthalein, phenyl mercuric borate, phosphoric acid, phosphorus pentoxide, potassium bicarbonate, potassium biphthalate, potassium magnesium aspartate, potassium sodium tartrate, potassium tartrate, propane tricarboxylic acid, quinic acid, ribonic acid, sebacic acid, sodium aspartate, sodium bisulfate, sodium borate, sodium butoxyethoxy acetate, sodium calcium boron phosphate, sodium calcium copper phosphate, sodium calcium zinc phosphate, sodium citrate, sodium glycolate, sodium lactate, sodium phosphate, sodium succinate, succinic acid, sulfuric acid, tartaric acid, taurine, tea-hydroiodide, trisodium sulfosuccinate, triticum vulgare protein, triticum vulgare seed extract, uric acid, zinc hexametaphosphate and mixtures thereof.14. The method according to claim 10, wherein the pH reducing agent is selected from the group consisting of citric acid, phosphoric acid, salicylic acid, etidronic acid, acetic acid, ascorbic acid, hydrochloric acid, sulfuric acid and mixtures thereof.15. The method according to claim 10, wherein the pH reducing agent is provided as a solid or a liquid.16. The method according to claim 10, wherein from 90% to 10% by weight of the first hair colouring composition is applied as a first portion to the hair.17. The method according to claim 1, wherein the first and second hair colouring compositions are applied to the hair with a brush and bowl applicator or a container to which a nozzle or a separate applicator device such as a comb or a brush is attached.18. A hair colouring kit comprising a first dye composition, a second dye composition, a first developer composition and a second developer composition, wherein each of the first and second dye compositions comprises one or more oxidative dye precursors and/or one or more alkalizing agents and each of the first and second developer compositions comprises one or more oxidizing agents, wherein the pH of the second developer composition is lower than the pH of the first developer composition.19. A hair colouring kit comprising a first dye composition, a first developer composition and a pH reducing agent wherein the first dye composition comprises one or more oxidative dye precursors and/or one or more alkalizing agents and the first developer composition comprises one or more oxidizing agents and wherein the first dye composition, the first developer composition and the pH reducing agent are packaged separately.
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