JP2517978B2 - Shamp-composition - Google Patents

Description

TECHNICAL FIELD The present invention suppresses squeaking and tangling of hair during rinsing,
The present invention relates to a shampoo composition having a good conditioning effect and excellent pearl luster stability.

Problems to be Solved by Conventional Techniques and Inventions In recent years, for shampoo compositions, not only foaming and detergency at the time of washing hair but also a conditioning effect for suppressing squeaking and tangling of hair at the time of rinsing are strongly demanded. There is.

Therefore, in order to enhance the denitrating effect of the shampoo composition, various oils, polymer compounds, silicones and the like have been blended as conditioning agents, among which homo or dialkyldiallylammonium salts such as dimethyldiallylammonium halide or the like. Copolymers are known to have a particularly good conditioning effect.

On the other hand, recently, there has been a demand for a shampoo composition that gives a beautiful appearance and a high-grade image in addition to the above-mentioned quality aspects, and a shampoo composition having a pearl luster by adding a pearling agent such as ethylene glycol fatty acid ester. Is commercially available.

However, for the purpose of obtaining a shampoo composition having an excellent hair conditioning effect and having a beautiful and high-quality appearance, a shampoo composition containing a pearling agent is treated with a homo- or copolymer of a dialkyldiallylammonium salt as a conditioning agent. When added, the stability of the pearl appearance decreases during long-term storage or high-temperature storage, and the pearling agent that was uniformly dispersed in the composition aggregates and settles, resulting in unclear pearl luster of the composition. There is a point. Such poor pearl luster stability over time is inconvenient in terms of commercial value of the shampoo composition, but with the conventional technology, a shampoo composition having both excellent conditioning effect and pearl luster stable over time is obtained. It was difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shampoo composition having an excellent conditioning effect and good pearl luster stability.

Means and Actions for Solving Problems The present inventors have conducted extensive studies to achieve the above-mentioned object, and as a result, a shampoo composition containing a dialkyldiallylammonium salt foam or copolymer as a conditioning agent and a pearling agent. It was found that a shampoo composition having both an excellent conditioning effect and stability of pearly luster can be obtained by adding a tertiary alcohol having a hydrocarbon group of 8 to 20 carbons to the composition.

That is, as described above, when a shampoo composition is blended with a homo- or copolymer of a dialkyldiallylammonium salt as a conditioning agent, and a pearling agent is used in combination with this in order to obtain a beautiful and high-quality appearance, a pearling agent is added. Was aggregated and settled,
Addition of a tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms to such a combined system, particularly, a homo- or copolymer of dialkyldiallylammonium salt is added in a total amount of 0.05.
-5% by weight and a pearling agent together in a proportion of 0.1-10% by weight of the total amount, and 0.01-0.6% by weight of the tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms in the mixture.
The addition of the pearling agent stabilizes the pearling agent, giving the shampoo composition an appearance of a beautiful and high-quality image for a long period of time without agglomeration and sedimentation of the pearling agent, and the effect is effectively exhibited. The inventors have found that the conditioning effect of the homo- or copolymer of diallylammonium salt is not impaired, and that the effect is stably maintained for a long period of time, resulting in the present invention.

Accordingly, the present invention provides a homo- or copolymer of a dialkyldiallylammonium salt in an amount of 0.05 to 5% by weight, a pearlizing agent in an amount of 0.1 to 10% by weight, and a tertiary group having a hydrocarbon group of 8 to 20 carbon atoms. Provided is a shampoo composition comprising 0.01 to 0.6% by weight of alcohol.

 Hereinafter, the present invention will be described in more detail.

The first essential ingredient of the shampoo composition of the present invention is a homo or copolymer of a dialkyldiallylammonium salt.

The homo- or copolymer of the dialkyl diallyl ammonium salt is added to the shampoo composition as a conditioning agent, and specifically, the following (1) to
An example is one having a structural formula represented by formula (4).

However, in the above formulas (1) to (4), the substituent R₁And R₂
May be the same or different, but preferably have 1 to 18 carbon atoms,
Preferably, it is an alkyl group of 1 to 4 or a hydrogen atom, and R₃Over
And R_FourMay be the same or different, but have 1 to 3 carbon atoms.
Is an alkyl group, a phenyl group or a hydrogen atom.
Also, in the formula X Is an anion residue, for example salt
Halogen ions such as elemental and bromine, inorganic acid residues such as sulfuric acid and nitric acid
Groups, organic acid residues such as methylsulfate and hydroxycarboxylic acid
And so on. Furthermore, n, m₁And m₂Is the compound
Is an integer such that the molecular weight of is from 10,000 to 1,000,000.

 In the present invention, the homo or copolymer having the above structure
Of the dimethyl diallyl ammonium halide
It is preferred to use₁Over
And R₂Is a methyl group, X Is chlorine ion (1)
Having a structure of formula or (2)
Nium chloride polymer (MERCK, MERQUAT100 etc.)
Or dimethyldia having the structure of formula (3) or (4)
Rylammonium chloride / acrylic amide copolymerization
The body (MERQUAT550, manufactured by MERCK) is preferably used.

Moreover, the compounding quantity of the 1st component is 0.05-5% of the whole composition.
(% By weight, the same applies hereinafter), preferably 0.1 to 3%.
When the content is less than 0.05%, it is difficult to obtain a conditioning effect for suppressing squeaking and tangling of hair during rinsing, and when it exceeds 5%, the composition is turbid and separated, and the pearly gloss stability is deteriorated.

It should be noted that it is no problem to mix the homo- or copolymer of the dialkyl diallyl ammonium salt with other conditioning agent together.

The pearling agent which is the second essential component is not particularly limited, but ethylene glycol fatty acid ester having a fatty acid having 14 to 24 carbon atoms is preferably used, and specifically, ethylene glycol monostearate and ethylene glycol are used. Distearate, ethylene glycol monopalmitate, ethylene glycol dipalmitate, ethylene glycol beef tallow fatty acid diester, ethylene glycol beef tallow fatty acid monoester, ethylene glycol behenic acid monoester, ethylene glycol behenic acid diester, and the like, These 1 type, or 2 or more types can be used in combination. Among these pearlizing agents, ethylene glycol distearate, ethylene glycol dipalmitate and mixtures thereof are particularly preferably used.

In the present invention, the content of the pearling agent is 0.1 to 10%, preferably 0.1 to 5% of the total composition. If the content is less than 0.1%, sufficient pearl luster cannot be obtained.
If it exceeds 0%, the dispersion density of the pearling agent becomes high and the pearl luster becomes unclear.

The shampoo composition of the present invention contains a tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms as a third essential component.

Here, examples of the tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms include linalool, tetrahydrolinalool, 4-terpineol, aprol 100 (3,6-dimethyloctane-3-ol), α-terpineol,
One or more kinds of odymenol, nerolidol and the like can be used, and linalool is preferably used among them.

Further, the blending amount of the above-mentioned tertiary alcohol is 0.01 to 0.6%, preferably 0.05 to 0.3% of the whole composition. If the amount is less than 0.01%, the effect is insufficient and the pearly luster of the composition cannot be kept stable for a long period of time, and if it is more than 0.6%, the usability of the composition is impaired.

The shampoo composition of the present invention may contain, as other components, optional components within a range that does not affect the effects of the present invention.

Here, the optional components include anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, methyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, cationized cellulose, polyethylene which are usually used in shampoos. Thickeners such as glycol, fatty acid esters of polyethylene glycol, coconut oil fatty acid diethanolamide, moisturizers such as ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin and sorbitol, vitamin E,
Vitamin C, vitamin E acetate and other vitamins, peppermint, capsicum tincture cooling sensation or heat sensitizer, bactericide, solubilizer, softener, UV absorber, chelating agent, viscosity modifier, colorant , Fragrances, and the like, and one or more of these optional components are blended as necessary.

Effects of the Invention As described above, the shampoo composition of the present invention comprises:
It has an excellent conditioning effect that suppresses squeezing and tangling of hair during rinsing, and even if it is stored at high temperature for a long time, the pearling agent does not aggregate or settle and is dispersed uniformly and stably in the ingredients, so it can be used for a long time. It is possible to maintain a clear pearl luster over the entire length.

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In the following examples,% means% by weight.

Prior to the description of each example, a method for evaluating a shampoo composition will be shown below.

〔Evaluation methods〕

(1) No squeaking or tangling of hair during rinsing (conditioning effect) A panel of 10 women and 10 men wash their hair with a shampoo composition to sensualize squeaking and tangling of hair during rinsing. evaluated.

In addition, the sensory evaluation was evaluated in three stages according to the following criteria.

Evaluation Criteria ○: There is no squeak or tangle of hair.

Δ: Slightly squeaky or tangled hair.

X: There is squeaky or tangled hair.

(2) Stability of pearly luster The prepared shampoo composition is filled in a transparent synthetic resin container, and stored at 45 ° C. for 30 days. The pearl luster before and after storage is compared, and the degree of change is visually judged.

The evaluation was carried out by a five-level evaluation based on the following criteria.

Evaluation Criteria ⊚: Almost no change is observed compared to before storage.

 ◯: A slight change is recognized compared to before storage.

 Δ: A change is recognized as compared with that before storage.

 X: A considerable change is recognized as compared with that before storage.

XX: Almost no pearl luster is observed.

[Examples 1 to 7 and Comparative Examples 1 to 7] Shampoo compositions having the compositions shown in Table 1 were prepared, and the squeezing and entanglement of hair during rinsing and the pearl luster stability were evaluated by the above methods.

 The results are shown in Table 1.

From the results in Table 1, shampoo compositions containing a homo- or copolymer of dimethyldiallylammonium halide and a pearling agent but not a tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms (Comparative Examples 1 to 3). ), The pearly luster stability was remarkably poor, and it was recognized that the composition containing the above-mentioned tertiary alcohol but having a blending amount of less than 0.01% (Comparative Example 6) was also inferior in pearly luster stability. In addition, the composition (Comparative Example 7) in which the amount of the tertiary alcohol compounded exceeded 0.6%, the squeak and tangle of the hair were felt during rinsing. Furthermore, although the above three components are contained together, the compounding amount of dimethyldiallylammonium halide among the three components is
The shampoo composition of less than 0.05% (Comparative Example 4) had squeaky or tangled hair when rinsed, and the composition of more than 5% by weight (Comparative Example 5) had poor pearly gloss stability and had a cloudiness. separated.

On the other hand, a shampoo composition in which a homo- or copolymer of dimethyldiallylammonium halide, a pearling agent, and a tertiary alcohol having a hydrocarbon group having 8 to 20 carbon atoms are each used in combination within the compounding amount range of the present invention ( In Examples 1 to 7), it was confirmed that the hair was free from squeaking and tangles during rinsing, and the pearl luster stability was good.

[Examples 8 and 9] Shampoo compositions having the compositions shown in Table 2 were prepared and evaluated for squeaking and entanglement during rinsing and pearl luster stability according to the above method.

 The results are shown in Table 2.

From the results shown in Table 2, the shampoo composition of the present invention has good crease and tangle-free hair stability and pearly luster stability at the time of rinsing even when various components such as anhydrous sodium sulfate and citric acid are added. I understood.

Claims (1)

(57) [Claims] 1. Tertiary having a dialkyldiallylammonium salt homo or copolymer in an amount of 0.05 to 5% by weight, a pearlizing agent in an amount of 0.1 to 10% by weight, and a hydrocarbon group having 8 to 20 carbon atoms. A shampoo composition comprising 0.01 to 0.6% by weight of alcohol as a whole.