Odor suppression in ammonia-containing cosmetic products

Abstract

A method and composition are disclosed with which it becomes possible to reduce the perception of ammonia odor in ammonia-containing compositions such as hair bleaches and colorants. A perfume composition containing at least one perfume material which is olfactively stable in the ammonia base and satisfies one of the following criteria is added to the ammonia-containing composition:(1) contains a phenyl ring moiety and has an air diffusion coefficient of >5.7,(2) contains a C-5 ring moiety, which also contains at least 1 carbon which is sp2 hybridized, and has an air diffusion coefficient of >4.4.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention concerns reduction of the perception of ammonia odor in ammonia containing compositions such as hair bleaches and colorants.

2. Discussion of the Related Art

Many hair treatment compositions contain ammonia and are characterized by an offensive odor.

For example, hair-bleaching agents based on a peroxide oxidation agent, such as hydrogen peroxide, urea peroxide, melamine perhydrate, etc. are generally used for the bleaching of human hair. The action of aqueous hydrogen peroxide solution per se, even under alkaline conditions, is too slow, so that hair damage may occur. Aqueous ammonia is an effective activator for the hair bleaching action of aqueous peroxide solutions, accelerating the oxidative destruction of the particles of the hair pigment (melanosomes), speeding up the rate at which the hair pigments are oxidized. It has therefore been customary to use ammonia in bleaching compositions for this purpose.

In addition, the pH of the aqueous hydrogen peroxide solutions must be adjusted to the alkaline side if they are to serve as effective bleaching agents for hair. Although the pH effect is different from the activator effect of ammonia (since the pH effect can be accomplished with alkaline materials other than ammonia), it has been common practice to use ammonia both for its activator effect and for its pH adjusting effect on the composition. As a consequence, with a few exceptions, essentially all the commercial hair bleaching compositions contain substantial quantities of ammonia.

Further, in hair dyes, the color vehicle for the dye intermediates is employed at a pH usually between about 9 and 11. Adjustment of pH to the desired level of alkalinity can be accomplished with ammonium hydroxide. The ammonium hydroxide base is preferred since ammonia assists in swelling the hair fiber and is easily removed.

Unfortunately, the presence or evolution of ammonia results in a particularly disagreeable strong ammonia odor. It is generally accepted that the unpleasant odor of ammonia cannot be masked even by perfuming.

Accordingly, efforts have been made in the prior art to provide ammonia-free hair bleaching compositions. One such attempt is described in U.S. Pat. No. 2,283,350. This patent describes the use of aliphatic amines or alkanolamines in place of ammonia or ammonium hydroxide to avoid the unpleasant ammonia odor. However, in this case, the resulting bleach mixture is more damaging (for the same degree of lightening) to the keratin hair fibers.

Another attempt at providing an ammonia-free hair bleach composition can be found in the U.S. Pat. No. 3,816,615 to Zeffern et al. In this case, activation of the peroxide oxidizing agent is accomplished by means of certain dicarbonyl compounds. In place of ammonium hydroxide, the patentees employ certain guanidine salts. This approach has not received any wide acceptance in the industry, which is probably due to the fact that the hair damage encountered in the use of the amines noted above is also encountered with the guanidine compounds.

Another approach to the odor problem has been to replace ammonia by odorless alkalinization agents such as alkali metal hydroxides, magnesium oxide or by alkanolamines, and to further accelerate the bleaching process in order to avoid the disadvantages of ammonia on the one hand and, on the other hand, to minimize the oxidative damage to the hair. U.S. Pat. No. 4,226,852 (Tesmann, et al.) teaches a two-component composition for bleaching hair comprising a peroxide oxidation agent, an ammonia-free alkalinization agent, and a guanidine derivative as bleaching accelerator. Unfortunately, guanidine derivatives are associated with hair damage.

A water insoluble gel is generally used to keep the bleach mixture on the hair fibers and prevent it from running or creeping away from the hair shaft and to run down off the head. The use of water-insoluble surfactants (see U.S. Pat. No. 2,283,350 for the use of high molecular weight alcohols for this purpose), however, greatly affects the lightening ability of the bleach mixture. To overcome reduced bleaching activity, high levels of ammonia are required. In conventional gels, the ammonia contained in the hair dye compositions is quickly given off from the gels to the environment, causing an odor problem. A loss of ammonia in the hair dye composition also lessens the covering power of the dyes, especially on gray hair. The same is essentially true of compositions that employ water-insoluble thickening agents. These also require relatively high levels of ammonia to raise the activity of the bleach composition to a suitable level.

U.S. Pat. No. 4,507,278 (DeMarco, et al.) teaches that, by utilizing water-soluble surfactant thickening agents, it is possible to dispense with the need for using ammonia as an activator. In this case, a non-ammonia alkalizing agent, and preferably one which does not have the potentiality for hair damage, can be employed to give the composition its appropriate pH. However, when only water-soluble surfactant thickening agents are employed, the viscosity of the product when it is applied to the head is too low for satisfactory application of the bleach. On the other hand, when an effort was made to increase the viscosity by the addition of water-insoluble surfactant thickening agents, it was found that the effectiveness of the bleaching composition, i.e., the rate at which the bleaching action occurred, was reduced to an unacceptable level. It was discovered that if a small quantity of ammonia is present in the composition (no greater than 0.55% by weight based on the total weight of the composition measured as ammonium ion concentration) and the ratio of water-soluble to water-insoluble surfactant thickener was maintained in the range of from 1.8 to 7.0, a highly effective product is obtained having the requisite level of bleaching activity, a suitable viscosity in use for application of the bleach, and substantially no ammonia odor.

Nevertheless, most hair coloring products in general use continue to be comprised of aqueous solutions with up to about 8% ammonia. Ammonia odors emanating from the coloring composition are difficult to mask and can be offensive to the hair color user.

There is thus a need for a method for the suppression of the ammonia odor in an ammonia-containing hair colorant.

SUMMARY OF THE INVENTION

The general understanding in the art is that ammonia odors are too intense to be masked by a perfume composition.

The present invention began by undertaking an investigation which ran contrary to this conventional wisdom. After extensive testing, it was surprisingly found that the perception of reduced ammonia odor does not depend on the maskant material's odor detection threshold or on the perceived inherent intensity of the maskant material. Rather, it was found that the perception of the ammonia odor can be lessened by use of maskant materials with a high air diffusion coefficient.

Perfumes containing at least 25% of materials satisfying the criteria of the invention can be expected to cover the perception of ammonia better than those which do not.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Typically, perfumes are created for hair colors or bleaching compositions by selecting materials known to be stable in the systems. The present inventor amassed a large collection of such perfumes.

Materials listed in Table 1 were tested for stability in an 8% ammonia system. Materials were dosed at 1% into the ammonia base. Solids were made into a 10% dilution and dosed at 1%. The materials were evaluated for ammonia coverage, olfactive odor stability, and visual physical appearance (color, cloudiness) at 1, 2, and 3 weeks, and at 5° C., 25° C., and 38° C. The materials were not solubilized for the raw material study. Full results were tabulated and are presented in Table 2.

A list of the air diffusion coefficients for the materials studied is set forth in Table 3.

After subjecting the materials to a variety of tests and recording the results on a table for comparative analysis, it was discovered that the ability of a material to mask the perception of ammonia from an aqueous media can be predicted using the following criteria, wherein suitable materials fall into two groups:

Group 1: Materials falling into this category are expected to mask the perception of ammonia if they:

1. Are olfactively stable in the ammonia base—i.e., these materials may change but do not degrade to a sharp, green aldehydic character.

2. Contain a phenyl ring moiety.

3. Have an air diffusion coefficient of >5.7.

Group 2: Materials falling into this category are expected to mask the perception of ammonia if they:

1. Are olfactively stable in the ammonia base—i.e., these materials may change but do not degrade to a sharp, green aldehydic character.

2. Contain a C-5 ring moiety, which also contains at least 1 carbon which is sp2 hybridized.

3. Have an air diffusion coefficient of >4.4.

Perfumes containing at least 25W of materials of Group I and/or Group II can be expected to cover the perception of ammonia better than those which do not.

TABLE I
	Dragoco
Material	Number	Test Group
ETHYL ACETOACETATE	4/910050	1
HEXYL CINNAMIC ALDEHYDE	3/011371	1
LILIAL	4/929325	1
ORANGE OIL FLORIDA	4/777160	1
DIOLA	3/926899	1
PHENYL ETHYL ALCOHOL	3/964540	2
ISO BORNYL ACETATE	3/943760	2
ISO E SUPER	0/115115	2
TETRAHYDRO LINALOOL	4/901360	2
FLORAZONE	3/034395	2
DIHYDRO TERPINEOL	4/016236	3
METHYL IONONE GAMMA	4/931205	3
YLANAT	3/084021	3
YLANAT ORTHO	3/084027	3
MELONAL	3/054211	3
ALLYL CYCLOHEXYL PROPIONATE	3/011241	4
CYCLOHEXYL ETHANOL	3/924060	4
FLOROL	3/934060	4
GERANYL ACETATE	3/039991	4
PRENYL ACETATE	3/026832	4
ROSEMARY OIL TUNISIA	1/510706	5
CRESSANTHER	3/045062	5
PETIOLE	4/780162	5
YSAMBER K	3/055120	5
ALLYL HEPTOATE (C-7)	4/010500	5
ANTHER	3/912100	6
EUCALYPTUS GLOBULUS	1/913422	6
MAYOL	3/954401	6
CEDRAMBER	3/018911	6
CEDROL LIQUID	3/019281	6
TONALID	3/976500	7
GALAXOLIDE 50 DEP	4/900551	7
PHENAFLEUR	3/964150	7
TRIDECENE-2-NITRILE	3/076791	7
CLONAL	3/923790	7
VELOUTONE	4/949088	8
METHYL NAPTHYL KETONE	4/933020	8
NEROLIN YARA YARA	3/959050	8
SANDRANOL	3/070540	8
CISTULATE 09126	3/920335	8
PADMA	3/064461	9
METHYL CHAVICOL	4/131155	9
RHUBAFURAN	4/941135	9
RHUBOFIX	3/971450	9
DELPHONE, FIRMENICH	4/916128	9
GRAPEFRUIT BASE 15.794 B	0/115317	10
ORANGE JUICE CARBONYLS	4/777119	10
CAMPHENE	4/726750	10
BENZALDEHYDE	3/914590	10

	1 Week, 5 C	2 Week, 5 C	3 Week, 5 C
					NH3			NH3			NH3
			Color/	RM	Cover-	Color/	RM	Cover-	Color/	RM	Cover-
Material	Number	%	Physical	Odor	age	Physical	Odor	age	Physical	Odor	age
Orange	4/777160	1.0%	As	OK	2	OK,	flat	3	OK,	aldehydic,	2
Oil Florida			RM,			8 mm	citrus		hazy	orange,
			8 mm			Cloudy				caraway
			Cloudy			Top
			Top
Diola	3/926899	1.0%	OK,	OK	5	Ok,	banana,	4	OK,	green,	4
			sl.			Clear	green		Clear	banana,
			Swirly							fruity
			cloudiness
Ethyl	4/910050	1.0%	OK,	OK	3	OK,	sour,	2	OK,	pungent,	1
Acetoacetate			Clear			Clear	weak		Clear	rancid
Lilial	4/929325	1.0%	OK,	Oxidized	2	OK,	Flora,	3	OK,	sour,	2
			Clear			Clear	oxidized		Clear	oxidized
Hexyl	3/011731	1.0%	OK,	Changed	2	OK,	floral,	3	OK,	low	2
cinnamic			3 mm			Hazy	jasmin		hazy
Aldehyde			cloudy			throughout
			top
Tetrahydro-	4/901360	1.0%	OK,	OK	2	OK,	floral,	3	OK,	floral	3
linalool			5 mm			3 mm	green		cloudy
			Cloudy			cloudy
			Top			top
Florazone	3/034395	1.0%	OK,	OK	5	OK,	green,	4	OK,	floral	3
			Clear			Clear	sl.		Clear	ozone,
							Sour			green
							plastic
Iso E	0/115115	1.0%	OK,	OK	2	OK,	woody,	4	OK,	sl.	2
Super			Clear			3 mm	floral		cloudy	Sour,
						cloudy				woody
						top
Iso Bornyl	3/943760	1.0%	OK,	OK	3	OK,	woody,	4	OK,	borneol,	3
Acetate			8 mm			5 mm	borneol		10 mm	isobornyl
			Cloudy			Cloudy			cloudy	ace
			Top			top
Phenyl	3/964540	1.0%	OK,	OK	4	OK,	rose,	5	OK,	rosy	4
Ethyl			Clear			Clear	floral		Clear
Alcohol
Dihydro	4/016236	1.0%	OK,	OK	3	OK,	sour,	2	OK,	floral,	3
Terpineol			5 mm			2 mm	terpineol		2 mm	green,
			Cloudy			cloudy			cloudy	sour
			Top
Ylanat	3/084027	1.0%	OK,	Woody/	3	OK,	sour,	2	OK,	woody,	3
Ortho			5 mm	Green		5 mm	sharp,		5 mm	sharp
			Cloudy			Cloudy	green		cloudy	green
			Top			top
Ylanat	3/084021	1.0%	OK,	OK	3	OK,	sour,	2	OK,	woody,	3
			5 mm			8 mm	sharp		5 mm	sharp
			Cloudy			Cloudy			cloudy	green
			Top			top
Melonal	3/054211	1.0%	OK,	Sour,	2	OK,	plasticky,	1	OK,	plastic,	2
			Clear	Acidic		Clear	melon		Clear	sour
Methyl	4/931205	1.0%	OK,	OK	4	OK,	woody	3	oK,	ionone	3
Ionone			5 mm			3 mm			3 mm
Gamma			Cloudy			cloudy			cloudy
			Top			top
ALLYL	3/011241	1.0%	OK,	OK	2	OK,	pineapple	3	OK,	pineapple,	2
CYCLOHEXYL			8 mm			Clear			1 mm	fruity
PROPIONATE			Cloudy						cloudy
			Top
CYCLOHEXYL	3/924060	1.0%	OK,	OK	1	OK,	floral,	3	OK,	green,	2
ETHANOL			5 mm			Clear	green,		4 mm	waxy
			Cloudy				plastic		cloudy	floral
			Top
FLOROL	3/934060	1.0%	OK,	OK	3	OK,	floral,	4	OK,	jasmine,	2
			Clear			Clear	muguet		Clear	floral
GERANYL	3/039991	1.0%	OK,	OK	3	OK,	weak	1
ACETATE			5 mm			Clear	geraniol
			Cloudy
			Top
PRENYL	3/026832	1.0%	OK,	Prenol?	3	OK,	sour	1
ACETATE			Clear	Solvent/		Clear	solvent
				Fruity
ROSEMARY	1/510706	1.0%	OK,	OK	3	OK,	camphor,	3	OK,	eucaly	4
OIL			Clear			Clear	herbal		Clear	ptus-like
TUNISIA
CRESSANTHER	3/045062	1.0%	OK,	OK	4	OK,	green,	3	oK,	green,	1
			5 mm			10 mm	floral		3 mm	aldehydic
			Cloudy			cloudy			cloudy
			Top
PETIOLE	4/780162	1.0%	OK,	sharp	2	OK,	plastic,	2	OK,	green,	3
			Clear	green		Clear	floral,		Clear	floral
							hyacinth
YSAMBER K	3/055120	1.0%	OK,	sharp	1	OK,	woody,	2	oK,	woody	2
			5 mm	woody		20 mm	amber		3 mm
			Cloudy	green		cloudy			cloudy
			Top
ALLYL	4/010500	1.0%	OK,	pineapple,	2	OK,	fruity,	3	OK,	pineapple,	1
HEPTOATE			sl.	fruity		Hazy	pineapple		Clear
(C-7)			Swirly			throughout
			cloudiness
ANTHER	3/912100	1.0%	OK,	Green,	2	OK,	green	3	oK,	green,	3
			3 mm	harsh		10 mm	fruity		3 mm	floral
			cloudy			cloudy			cloudy
			top
EUCALYPTUS	1/913422	1.0%	OK,	Eucal-	3	OK,	camp	3	OK,	camp	1
GLOBULUS			Clear	yptus,		Clear	horic,		Clear	hor,
				camp			medicinal			eucal
				hor						yptus
MAYOL	3/954401	1.0%	OK,	Floral,	2	ok,	sharp	2	OK,	green,	2
			20 mm	green,		30 mm	green		10 mm	floral
			cloudy	weak		cloudy	floral		cloudy
							woody
CEDRAMBER	3/018911	1.0%	OK,	harsh	2	OK,	sharp	2	OK,	woody,	3
			15 mm	woody		20 mm	woody		5 mm	amber
			Cloudy			cloudy	cedar		cloudy
CEDROL	3/019281	1.0%	OK,	woody,	2	OK,	sl.	3	OK,	woody	4
LIQUID			Clear	cedar		Clear	Woody		Clear
10% in
DPG
TONALID,	3/976500	1.0%	OK,	musk	2	OK,	musk	1	OK,	musk,	3
10% in			Clear			Clear			Clear	tonalid
DPG
GALAXOLIDE	4/900551	1.0%	OK,	musk	3	OK,	musk	2	OK,	musk,	3
50			Clear			Clear			Clear	sweet
DEP
PHENAFLEUR	3/964150	1.0%	OK,	rose,	3	OK,	sharp	2	OK,	rose,	3
			10 mm	green		Cloudy	green		2 mm	green
			Cloudy						cloudy
			top
TRIDECENE-2-	3/076791	1.0%	OK,	citrus,	2	OK,	sharp,	3	OK,	citrus,	2
NITRILE			10 mm	nitrile		10 mm	nitrile		5 mm	nitrile
			Cloudy			cloudy			cloudy
			top
CLONAL	3/923790	1.0%	OK,	citrus,	4	OK,	sharp	1	OK,	citrus	3
			10 mm	nitrile		10 mm	nitrile		5 mm	nitrile,
			Cloudy			cloudy			cloudy	green
			top
VELOUTONE	4/949088	1.0%	OK,	celery,	4	OK,	jasmin	2	OK,	jasmine,	3
			sl.	jasmin		3 mm			swirly	floral
			Haze			cloudy
						cloudy
						top
METHYL	4/933020	1.0%	OK,	orange	2	OK,	orange	2	OK,	orange	1
NAPHTHYL			Clear	flower		Clear	flower		Clear	flower
KETONE
10% dpg
NEROLIN	3/959050	1.0%	OK,	orange	3	OK,	Nerolin	3	OK,	orange	1
YARA			Clear	flower		Clear			Clear	flower
YARA
10% dpg
SANDRANOL	3/070540	1.0%	OK,	sandal	4	OK,	sandal	3	OK,	sandal	4
			10 mm	wood		10 mm			15 mm	wood
			Cloudy			cloudy			cloudy
			top
CISTULATE	3/920335	1.0%	OK,	piney,	3	OK,	woody	2	OK,	sour,	2
09126			3 mm	green		1 mm			1 mm	citrus,
			cloudy			cloud			cloudy	woody
			top
PADMA	3/064461	1.0%	OK,	green,	3	OK,	hyacinth	4	OK,	green	3
			Clear	hyacinth		Clear			Clear	sharp
METHYL	4/131155	1.0%	OK,	anise	4	OK,	licorice,	2	OK,	licorice,	2
CHAVICOL			3 mm			5 mm	basil		cloudy	herbal
			cloudy			Cloudy
			top			top
RHUBAFURAN	4/941135	1.0%	OK,	aldehydic,	2	OK,	green,	4	OK,	green,	2
			Clear	woody		Clear	woody,		clear	plastic
							aldehydic
RHUBOFIX	3/971450	1.0%	OK,	aldehydic,	3	OK,	green,	2	OK,	green,	4
			3 mm	green		1 mm	woody,		cloudy	sharp
			cloudy	woody,		cloud	lactonic
			top	floral
DELPHONE,	4/916128	1.0%	OK,	jasmone	4	OK,	jasmine,	4	OK,	celery	4
FIRMENICH			hazy			1 mm	fruity		cloudy
						cloud
GRAPEFRUIT	0/115317	1.0%	OK,	woody,	1	OK,	sl	1	OK,	grapefruit	2
BASE			Clear	grapefruit		Clear	grapefruit		Clear
15.794 B
ORANGE	4/777119	1.0%	OK,	OK,	3	ok. sl	orange,	3	OK,	fruity,	2
JUICE			Clear	orange,		milky	v sl		Clear	orange
CARBONYLS				sweet			sour
							aldehydic
CAMPHENE	4/726750	1.0%	OK,	pine,	2	OK,	camphene,	3	OK,	aromatic,	4
			Clear	diffusive		Clear	pine		Clear	pine
BENZALDEHYE	3/914590	1.0%	OK,	flat,	3	OK,	changed,	4	OK,	sl.	4
			Clear	not		clear	not		Clear	Fruity?
				typical			unpleasant
	1 Week, 25 C	2 Week, 25 C	3 Week, 25 C
					NH3			NH3			NH3
			Color/	RM	Cover-	Color/	RM	Cover-	Color/	RM	Cover-
Material	Number	%	Physical	Odor	age	Physical	Odor	age	Physical	Odor	age
Orange	4/777160	1.0%	As	OK	1	OK,	lemon,	2	OK,	aldehydic,	3
Oil Florida			RM,			Clear	citrus,		Clear	fruity
			Clear				changed,
							lower
							impact
Diola	3/926899	1.0%	OK,	OK	5	OK,	banana,	4	OK,	green,	3
			Clear			Clear	green		Clear	banana
Ethyl	4/910050	1.0%	OK,	OK,	2	OK,	sour,	2	OK,	sour	1
Acetoacetate			Clear	low		Clear	fruity		clear	solventy
Lilial	4/929325	1.0%	OK,	Oxidized	3	OK,	faint	3	OK,	sour,	2
			Clear			Clear	floral		Clear	oxidized
Hexyl	3/011371	1.0%	OK,	Changed,	3	OK,	floral	3	OK,	low	2
cinnamic			Clear	sour		Clear			Clear
Aldehyde				Acidic
Tetrahydro-	3/034395	1.0%	OK,	OK	2	OK,	green	3	OK,	floral	2
linalool			Clear			v. sl	floral		Clear
						hazy
Florazone	3/034395	1.0%	OK,	OK	4	OK,	green,	3	OK,	floral,	3
			Clear			Clear	floral,		Clear	v sl
							plastic			sour
										plastic
Iso E	0/115115	1.0%	OK,	OK	3	OK,	woody	4	Dark,	woody	3
Super			Clear			clear			Clear
Iso Bornyl	3/943760	1.0%	OK,	OK/	4	OK,	borneol-	2	OK,	borneol	1
Acetate			Clear	Sl		clear	ish		Clear
				Borneol-
				like
Phenyl	3/964540	1.0%	OK,	OK	5	OK,	rose,	4	OK,	green,	4
Ethyl			Clear			Clear	green		Clear	rose,
Alcohol										floral
Dihydro	4/016236	1.0%	OK,	OK	1	sl.	sour,	1	OK,	floral,	1
Terpineol			Clear			Darker,	burning		Clear	plastic,
						Clear				sour
Ylanat	3/084027	1.0%	OK,	Woody/	2	OK,	sour,	2	OK,	woody,	2
Ortho			Clear	Green		Clear	sharp		Clear	green,
										sharp
Ylanat	3/084021	1.0%	OK,	Woody/	2	OK,	sour	1	OK,	woody,	2
			Clear	Green		Clear			Clear	green,
										sharp
Melonal	3/054211	1.0%	OK,	Sour,	3	OK,	plasticky	1	OK,	plastic,	1
			Clear	Fruity		Clear			Clear	sour,
										sharp
Methyl	4/931205	1.0%	OK,	OK	4	Darker,	woody	2	Dar,	Ionone,	2
Ionone			Clear			Clear			Clear	weak
Gamma
ALLYL	3/011241	1.0%	OK,	OK	3	OK,	fruity,	2	OK,	pineapple,	3
CYCLOHEXYL			Clear			Clear	pineapple		clear	fruity
PROPIONATE							sharp
CYCLOHEXYL	3/934060	1.0%	OK,	OK	2	OK,	floral,	3	OK,	green,	1
ETHANOL			Clear			Clear	green,		Clear	floral,
							plastic			fruity
FLOROL	3/934060	1.0%	OK,	OK	3	OK,	floral,	4	OK,	jasmine,	2
			Clear			Clear	muguet		Clear	floral
GERANYL	3/039991	1.0%	OK,	Geraniol	2	OK,	weak	1
ACETATE			Clear			Clear	geraniol
PRENYL	3/026832	OK,	Solvent,	1	OK,	sour	1
ACETATE			Clear	Sour,		Clear	solvent
				Fruity
ROSEMARY	1/510706	1.0%	OK,	OK,	3	OK,	camphoric	2	OK,	camphor,	2
OIL			Clear	camphor/		Clear			Clear	eucal
TUNISIA				eucal						lptus
				yptus
CRESSANTHER	3/045062	1.0%	OK,	OK,	4	OK,	green,	3	OK,	green	1
			Clear	sweet,		Clear	floral		Clear	aldehydic
				green,
				floral
PETIOLE	4/780162	1.0%	OK,	sharp	3	OK,	green,	3	OK,	green,	3
			Clear	green		Clear	floral		Clear	floral
YSAMBER K	3/055120	1.0%	OK,	green	3	OK,	woody,	2	OK,	woody,	1
			Clear	woody		Clear	sour		Clear	timberol-
										like
ALLYL	4/010500	1.0%	OK,	fruity	4	OK,	fruity,	2	OK,	fruity,	2
HEPTOATE			Clear	pineapple		Clear	pineapple		Clear	pineapple
(C-7)
ANTHER	3/912100	1.0%	OK,	green	2	OK,	green,	2	OK,	green,	2
			Clear	floral		Clear	fruity,		Clear	floral
				harsh			woody
EUCALYPTUS	1/913422	1.0%	OK,	eucal	1	OK,	camp	3	OK,	eucal	1
GLOBULUS			Clear	yptus,		Clear	horic,		Clear	yptus
				camphoric			medicinal
MAYOL	3/954401	1.0%	OK,	green	3	OK,	sharp	2	OK,	green,	1
			10 mm	floral,		25 mm	green		10 mm	floral
			Cloudy	weak		Cloudy	plastic		cloudy
CEDRAMBER	3/018911	1.0%	OK,	woody,	3	OK,	woody,	2	OK,	woody,	2
			Clear	cedar		Clear	sharp		Clear	amber
CEDROL	3/019281	1.0%	OK,	woody,	4	OK,	woody	3	OK,	woody,	3
LIQUID			Clear	cedar		Clear			Clear	flat
10% in
DPG
TONALID,	3/976500	1.0%	OK,	musk	1	OK,	tonalid	2	OK,	musk,	2
10% in			Clear			Clear			Clear	tonalid
DPG
GALAXOLIDE	4/900551	1.0%	OK,	musk	3	OK,	galax	3	OK,	musk,	3
50			Clear			Clear	olide		Clear	galax
DEP										olide
PHENAFLEUR	3/964150	1.0%	OK,	rose,	2	OK,	sharp	2	OK,	rose,	3
			Clear	green		Clear	green		Clear	green
TRIDECENE-2-	3/076791	1.0%	OK,	citrus,	3	OK,	nitrile,	3	OK,	citrus,	3
NITRILE			3 mm	nitrile		cloudy	sl.		sl	nitrile
			Cloudy			top	Sour		swirly
			top						cloudy
CLONAL	3/923790	1.0%	OK,	citrus,	4	OK,	nitrile	2	OK,	citrus,	3
			8 mm	nitrile		10 mm			5 mm	nitrile,
			Cloudy			cloudy			cloudy	green
			top			top
VELOUTONE	4/949088	1.0%	OK,	fruity,	2	OK,	jasmine	3	OK,	jasmine,	2
			Clear	jasmine,		Clear			Clear	green
				celery
METHYL	4/933020	1.0%	OK,	orange	3	OK,	low	2	OK,	orange	2
NAPHTHYL			Clear	flower		Clear			Clear	flower,
KETONE										sweet
10% dpg
NEROLIN	3/959050	1.0%	OK,	orange	3	OK,	nerolin	3	OK,	orange	3
YARA			Clear	flower		Clear			Clear	flower,
YARA										sweet
10% dpg
SANDRANOL	3/070540	1.0%	OK,	very	2	OK,	sandal	3	OK,	sandal	3
			10 mm	strong		10 mm	wood		20 mm	wood
			Cloudy	sandal		cloudy			cloudy
						top
CISTULATE	3/920335	1.0%	OK,	sweet,	3	OK,	woody,	3	OK,	woody,	2
09126			Clear	woody		Clear	naphthyl		Clear	sour
PADMA	3/064461	1.0%	OK,	green,	3	OK,	hyacinth	4	OK,	green	3
			Clear	hyacinth		Clear			Clear	sharp
METHYL	4/131155	1.0%	OK,	anise	2	OK,	licorice,	2	OK,	licorice,	2
CHAVICOL			Clear			Clear	herbal		Clear	herbal
RHUBAFURAN	4/941135	1.0%	OK,	aldehydic,	2	OK,	green,	3	OK,	green,	2
			Clear	green,		Clear	woody,		Clear	plastic
				sharp			aldehydic
RHUBOFIX	3/971450	1.0%	OK,	green,	2	OK,	sharp	3	OK,	green,	4
			Clear	floral		Clear	green		Clear	sharp,
										aldehydic
DELPHONE	4/916128	1.0%	OK,	jasmone	4	OK,	fruity,	3	OK,	jasmine	4
FIRMENICH			Clear			Clear	jasmine		Clear
GRAPEFRUIT
BASE
15.794 B
ORANGE
JUICE
CARBONYLS
CAMPHENE
BENZALDEHYE
		1	2	3
	1 Week, 38 C	Week	week	week
						NH3	Avg	Avg	Avg
				Color/	RM	Cover-	NH3	NH3	NH3
	Material	Number	%	Physical	Odor	age	Cover	Cover	Cover
	Orange	4/777160	1.0%	As	Flat	1	1	3	3
	Oil Florida			RM,	Aldehydic
				sl.
				Cloudi-
				ness
	Diola	3/926899	1.0%	OK,	OK	5	5	4	4
				Clear
	Ethyl	4/910050	1.0%	OK,	Sour,	1	2	2	1
	Acetoacetate			Clear	Acidic
	Lilial	4/929325	1.0%	OK,	Oxidized	4	3	3	2
				Clear
	Hexyl	3/011371	1.0%	OK,	Sl	2	2	3	2
	cinnamic			Clear	changed
	Aldehyde
	Tetrahydro-	4/901360	1.0%	OK,	OK	2	2	3	3
	linalool			Clear
	Florazone	3/034395	1.0%	OK,	OK	4	4	4	3
				Clear
	Iso E	0/115115	1.0%	Yellower,	OK	3	3	4	3
	Super			Clear
	Iso Bornyl	3/943760	1.0%	OK,	OK to	3	3	3	2
	Acetate			Clear	Borneol
	Phenyl	3/964540	1.0%	OK,	OK	4	4	5	4
	Ethyl			Clear
	Alcohol
	Dihydro	4/016236	1.0%	OK,	OK?	1	2	2	2
	Terpineol			Clear
	Ylanat	3/084027	1.0%	Yellower,	Woody/	3	3	2	3
	Ortho			Clear	Green
	Ylanat	3/084021	1.0%	Yellower,	Woody/	2	2	2	3
				Clear	Green
	Melonal	3/054211	1.0%	OK,	Sour,	3	3	1	2
				Clear	acidic,
					plastic
	Methyl	4/931205	1.0%	Yellower,	OK	4	4	3	3
	Ionone			Clear
	Gamma
	ALLYL	3/011241	1.0%	OK,	sl.	2	2	3	3
	CYCLOHEXYL			Clear	Sour,
	PROPIONATE				mostly
					OK
	CYCLOHEXYL	3/924060	1.0%	OK,	Sour	1	1	3	2
	ETHANOL			Clear
	FLOROL	3/934060	1.0%	OK,	OK	3	3	4	2
				Clear
	GERANYL	3/039991	1.0%	OK,	Geraniol/	2	2	1	0
	ACETATE			Clear	Nerol
	PRENYL	3/026832	1.0%	OK,	Plastic/	1	2	1	0
	ACETATE			Clea	Solvent
	ROSEMARY	1/510706	1.0%	OK,	camphor/	1	2	3	3
	OIL			Clear	eucal
	TUNISIA				ytus
	CRESSANTHER	3/045062	1.0%	OK,	green,	2	3	3	1
				Clear	floral
	PETIOLE	4/780162	1.0%	OK,	green,	2	2	3	3
				Clear	aldehydic
	YSAMBER K	3/055120	1.0%	OK,	sl.	1	2	2	2
				Clear	Woody,
					not
					stable
	ALLYL	4/010500	1.0%	OK,	fruity,	2	3	3	2
	HEPTOATE			Clear	pineapple
	(C-7)
	ANTHER	3/912100	1.0%	OK,	green	1	2	3	3
				Clear	floral
	EUCALYPTUS	1/913422	1.0%	OK,	very	1	2	3	1
	GLOBULUS			Clear	camp
					horac
					eous
	MAYOL	3/954401	1.0%	OK,	green	3	3	2	2
				hazy	floral
					weak
	CEDRAMBER	3/018911	1.0%	OK,	woody,	1	2	2	3
				Clear	cedar
	CEDROL	3/019281	1.0%	OK,	woody,	4	3	3	4
	LIQUID			Clear	cedar
	10% in
	DPG
	TONALID,	3/976500	1.0%	OK,	musk	1	1	2	3
	10% in			Clear
	DPG
	GALAXOLIDE	4/900551	1.0%	OK,	musk	2	3	3	3
	50			Clear
	DEP
	PHENAFLEUR	3/964150	1.0%	OK,	green	2	2	2	3
				Clear	rose
	TRIDECENE-2-	3/076791	1.0%	OK,	citrus,	3	3	3	3
	NITRILE			Clear	nitrile,
					sl.
					Sour
	CLONAL	3/923790	1.0%	OK,	citrus,	3	4	2	3
				Clear	nitrile,
					lemon
	VELOUTONE	4/949088	1.0%	OK,	fruity,	3	3	3	3
				Clear	jasmine
	METHYL	4/933020	1.0%	OK,	orange	2	2	2	2
	NAPHTHYL			clear	flower,
	KETONE				weak
	10% dpg
	NEROLIN	3/959050	1.0%	OK,	orange	2	3	3	2
	YARA				Clear	flower
	YARA
	10% dpg
	SANDRANOL	3/070540	1.0%	OK,	sandal	3	3	3	4
				15 mm	wood
				cloudy
	CISTULATE	3/920335	1.0%	OK,	state	3	3	3	2
	09126			Clear	plastic
					woody
	PADMA	3/064461	1.0%	OK,	green	3	3	4	3
				Clear
	METHYL	4/131155	1.0%	OK,	licorice,	3	3	2	2
	CHAVICOL			Clear	anise
	RHUBAFURAN	4/941135	1.0%	OK,	aldehydic,	2	2	4	2
				Clear	herbal
	RHUBOFIX	3/971450	1.0%	OK,	green,	2	2	3	4
				Clear	aldehydic
	DELPHONE	4/916128	1.0%	OK,	jasmone	4	4	4	4
	FIRMENICH			Clear
	GRAPEFRUIT	0/115317	1.0%	OK,	woody,	2	1	1	1
	BASE			Clear	grapefruit
	15.794 B
	ORANGE	4/777119	1.0%	OK,	orange,	2	2	2	1
	JUICE			Clear	flat
	CARBONYLS
	CAMPHENE	4/726750	1.0%	OK,	flat	3	2	2	2
				Clear	pine
	BENZALDEHYE	3/914590	1.0%	OK,	not	3	2	2	2
				Clear	typical

							C-5 ring
							with at least
	Dragoco		Olfactive	Air Diffusion	Average	Phenyl Ring	1 sp2
Material	Number	Group	Stability	Coeffiecient	Coverage	Moiety?	carbon
ALLYL CYCLOHEXYL PROPIONATE	3/011241	4	marginal	4.86	2.6	N	N
ALLYL HEPTOATE (C-7)	4/010500	5	stable	5.23	2.6	N	N
ANTHER	3/912100	6	stable	4.86	2.6	Y	N
BENZALDEHYDE*	3/914590	10	stable*	7.5	3.5	Y	N
CAMPHENE*	4/726750	10	marginal	6.13	3.0	N	N
CEDRAMBER	3/018911	6	stable	n/a	2.3	N	N
CEDROL LIQUID 10%	3/019281	6	stable	4.25	3.3	N	N
CISTULATE 09126	3/920335	8	not stable	n/a	2.6	N	N
CLONAL	3/923790	7	stable	4.66	3.0	N	N
CRESSANTHER	3/045062	5	stable	n/a	2.3	Y	N
CYCLOHEXYL ETHANOL	3/924060	4	stable	6.29	2.0	N	N
DELPHONE, FIRMENICH	4/916128	9	stable	5.46	4.0	N	Y
DIHYDRO TERPINEOL	4/016236	3	not stable	5.47	2.0	N	N
DIOLA	3/926899	1	stable	6.51	4.3	N	N
ETHYL ACETOACETATE	4/910050	1	not stable	5.54	1.6	N	N
EUCALYPTUS GLOBULUS	1/913422	6	stable	n/a	2.0	N	N
FLORAZONE	3/034395	2	marginal	4.99	3.6	Y	N
FLOROL	3/934060	4	stable	5.21	3.0	N	N
GALAXOLIDE 50 DEP 10%	4/900551	7	stable	4.07	3.0	N	N
GERANYL ACETATE	3/039991	4	not stable	4.78	1.0	N	N
GRAPEFRUIT BASE 15.794 B*	0/115317	10	stable	n/a	1.5	U	U
HEXYL CINNAMIC ALDEHYDE	3/011371	1	not stable	4.45	2.3	Y	N
ISO BORNYL ACETATE	3/943760	2	not stable	4.92	2.6	N	N
ISO E SUPER	0/115115	2	not stable	4.18	3.3	N	N
LILIAL	4/929325	1	not stable	4.7	2.6	Y	N
MAYOL	3/954401	6	not stable	5.45	2.3	N	N
MELANOL	3/054211	3	not stable	5.79	2.0	N	N
METHYL CHAVICOL	4/131155	9	not stable	5.91	2.3	Y	N
METHYL IONONE GAMMA	4/931205	3	marginal	4.53	3.3	N	N
METHYL NAPHTHYL KETONE 10%	4/933020	8	stable	5.52	2.0	Y	N
NEROLIN YARA YARA 10%	3/959050	8	stable	5.84	2.6	Y	N
ORANGE JUICE CARBONYLS*	4/777119	10	stable	n/a	2.5	N	N
ORANGE OIL FLORIDA	4/777160	1	not stable	n/a	2.3	U	U
PADMA	3/064461	9	stable	5.71	3.3	Y	N
PETIOLE	4/780162	5	marginal	n/a	2.6	Y	N
PHENAFLEUR	3/964150	7	stable	4.77	2.3	Y	N
PHENYL ETHYL ALCOHOL	3/964540	2	stable	6.76	4.3	Y	N
PRENYL ACETATE	3/026832	4	not stable	6.49	1.0	N	N
RHUBAFURAN	4/941135	9	not stable	n/a	2.6	Y	N
RHUBOFIX	3/971450	9	not stable	n/a	3.0	N	N
ROSEMARY OIL TUNISIA	1/510706	5	stable	n/a	2.6	N	N
SANDRANOL	3/070540	8	stable	4.44	3.3	N	Y
TETRAHYDRO LINALOOL	4/901360	2	stable	5.33	2.6	N	N
TONALID 10%	3/976500	7	stable		2.0	N	N
TRIDECENE-2-NITRILE	3/076791	7	not stable	4.32	3.0	N	N
VELOUTONE	4/949088	8	stable	4.59	3.0	N	Y
YLANAT	3/084021	3	not stable	4.79	2.3	N	N
YLANAT ORTHO	3/084027	3	not stable	4.77	2.6	N	N
YSAMBER K	3/055120	5	not stable	n/a	2.0	N	N
* = tested only at 5 and 38 C	* = changed character, but not offensive

Although this invention has been described in its preferred form with a certain degree of particularity with respect to a method for determining perfumes to be used to mask ammonia in a hair treatment composition, it is understood that the present disclosure of the preferred form has been made only by way of example, and that numerous changes in the details of structures and composition of the product may be resorted to without departing from the spirit and scope of the invention.

Claims

1. A method for masking the perception of ammonia from an aqueous media comprising:providing an aqueous media containing 1-15 wt. % ammonia; adding to said aqueous media a sufficient amount of at least one perfume which is olfactively stable in said aqueous media to suppress the perception of ammonia; wherein the perfume satisfies one of the following criteria: 1) contains a phenyl ring moiety and has an air diffusion coefficient of >5.7, 2) contains a C-5 ring moiety, which also contains at least 1 carbon which is sp2 hybridized, and has an air diffusion coefficient of >4.4.

2. A method as in claim 1, wherein said perfume contains at least 25% of materials satisfying criteria (1) or (2).

3. A method as in claim 1, wherein said aqueous media contains from 5 to 10 wt. % ammonia.

4. A method as in claim 1, wherein said aqueous media is selected from the group consisting of hair colorants and hair bleaches.

5. An ammonia-containing hair treatment composition having reduced ammonia odor, said composition comprising:aqueous media containing 1-15% ammonia; at least one perfume in sufficient amount to suppress the perception of ammonia; wherein the perfume is olfactively stable in the aqueous media and satisfies one of the following criteria: 1) contains a phenyl ring moiety and has an air diffusion coefficient of >5.7, 2) contains a C-5 ring moiety, which also contains at least 1 carbon which is sp2 hybridized, and has an air diffusion coefficient of >4.4.

6. An ammonia-containing hair treatment composition as in claim 5, wherein said composition is a hair colorant.

7. An ammonia-containing hair treatment composition as in claim 5, wherein said composition is a hair bleach.

8. An ammonia-containing hair treatment composition as in claim 5, wherein said composition is a gel composition.