CN116940335A

CN116940335A - Hair styling force enhancer

Info

Publication number: CN116940335A
Application number: CN202280017844.XA
Authority: CN
Inventors: 近友亚美; 曾田花穗; 谷口睦子; 三宅正树; 岩城完三
Original assignee: Hayashibara Co Ltd
Current assignee: Hayashibara Co Ltd
Priority date: 2021-03-05
Filing date: 2022-03-02
Publication date: 2023-10-24

Abstract

The present invention addresses the problem of providing a novel hair styling composition having sufficient hair styling force, and means for achieving such a hair styling composition. The above problems are solved by providing a hair styling power enhancer containing isomaltooligosaccharides as an active ingredient and a hair styling composition containing the same.

Description

Hair styling force enhancer

Technical Field

The present invention relates to a hair styling force enhancer, a hair styling composition containing the same, and a hair styling force enhancing method using the same, and more specifically, to a hair styling force enhancer containing isomaltooligosaccharides as an active ingredient, and a hair styling composition containing the same.

Background

Conventionally, as a hair styling agent for hair styling, a hair styling agent formed by dissolving a polymer compound having film formability in water, a lower alcohol, a mixed solvent thereof, or the like has been generally used. The polymer compound having film formability has an effect of adhering to the hair surface and fixing and retaining hair to each other, but conventionally used hair styling agents have a problem that the degree of freedom in hair styling is limited due to tackiness generated during the process of applying the hair and drying the hair. In order to solve such a disadvantage, attempts have been made to improve usability by adding a cosmetic oil or fat, a surfactant, an alcohol, etc. to a film-forming polymer compound, but no hair styling agent having satisfactory styling retention and feel in use has been obtained.

In conventional hair styling compositions, there have been proposed a method for limiting the polymer compound to be incorporated therein, a component other than the polymer compound, and the pH of the composition (for example, see patent document 1), a method for incorporating a sugar alcohol as a component other than the polymer compound (for example, see patent document 2), and a method for incorporating a sugar derivative of α, α -trehalose (for example, see patent document 3). However, the improvement of the hair styling composition by these methods is insufficient in terms of the use feeling such as the elimination of tackiness and smoothness in the course from after application to before drying, and even if the use feeling is excellent, a sufficient styling force may not be maintained, and appearance defects such as the hair style being deformed with the passage of time or white dust (blowing) being generated at the time of reshaping may occur, which is not satisfactory from a comprehensive point of view.

In recent years, there has been an increasing demand for hair care compositions mainly composed of non-synthetic components capable of imparting luster or excellent texture, which have a strong intention to promote healthy and intact hair, and which have a repairing effect from hair damage, and for example, hair treatment compositions containing sugar, oligopeptide and amino acid (see patent document 4) and hair cosmetic compositions containing disaccharide have been proposed (see patent document 5, for example). However, these compositions have not been able to impart gloss and excellent texture to hair, but have not been able to sufficiently satisfy the use feeling and performance thereof, although they have suppressed hair damage (hereinafter referred to as "hair damage") caused by treatments such as decolorization, permanent waving and straightening, or use of high Wen Meifa (hair styling).

Prior art literature

Patent document 1: japanese patent laid-open publication No. 2002-25556

Patent document 2: japanese patent laid-open No. 5-112437

Patent document 3: japanese patent laid-open No. 2006-232820

Patent document 4: japanese patent application laid-open No. 2009-519273

Patent document 5: japanese patent application laid-open No. 2012-236804

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above-described drawbacks of conventional hair styling agents or hair styling compositions, and an object of the present invention is to provide a novel hair styling composition having sufficient hair styling force and means for achieving such a hair styling composition. Another object of the present invention is to provide a hair styling composition having excellent hair styling ability and excellent feel in use, white dust suppression and/or care action, and a means for realizing such a hair styling composition.

Means for solving the problems

The present inventors have conducted intensive studies to solve the above problems, and as a result, have surprisingly found that: the isomaltooligosaccharide, which is one of the saccharides, can be used as an active ingredient of a hair styling force enhancer that significantly enhances the hair styling force and significantly enhances the hair styling force of conventional hair styling compositions, and by compounding isomaltooligosaccharide, the feel of use and the property of inhibiting white dust of the hair styling compositions are significantly improved, and further, a caring effect is obtained. That is, the present invention solves the above problems by providing a hair styling aid containing isomaltooligosaccharides as an active ingredient and a hair styling composition containing the hair styling aid.

Effects of the invention

The hair styling force enhancer containing isomaltooligosaccharides as an active ingredient of the present invention can significantly enhance the hair styling force of a hair styling composition when incorporated into the hair styling composition. In addition, the hair styling force enhancer containing isomaltooligosaccharides as an active ingredient of the present invention has the following advantages in addition to enhancing the hair styling force of the hair styling composition containing the hair styling force enhancer: can improve hair styling, feel in use and/or white dust (marking) characteristics, and can impart care.

Drawings

Fig. 1 is a diagram showing a state of white dust of a hair bundle coated (smeared) with a control gel.

Fig. 2 is a diagram showing a state of white scraps of hair bundles coated with a test gel containing isomaltooligosaccharides.

Detailed Description

The hair styling power enhancer of the present invention is a hair styling power enhancer containing isomaltooligosaccharides as an active ingredient. As used herein, "hairstyling" refers to the styling and fixing of hair, including the maintenance of a set hairstyle over a long period of time. The hair styling force can be evaluated by using, for example, the breaking strength of the hair bundle coated with the hair styling force enhancer as an index, as shown in experimental examples described later. That is, the enhancement of the hair styling force means that the breaking strength of the hair bundle can be increased as compared with the case where the hair styling force enhancer is not applied.

In a preferred embodiment, the isomaltooligosaccharides-containing hair styling aid also has a hair styling aid effect as shown in experimental examples described below. That is, in a preferred embodiment, the hair styling force enhancer of the present invention may be used as a hair styling force enhancer. In this specification, the term "hair styling" means that the hairstyle can be easily changed even after the hairstyle is set. The hair styling force can be evaluated using the toughness of hair as an index, for example, as shown in experimental examples described below. That is, the enhancement of the hair setting force means that the toughness of the hair can be improved as compared with the case where the hair setting force enhancing agent is not applied.

In a preferred embodiment, the hair styling force enhancer of the present invention is a hair styling force enhancer which can not only enhance hair styling force and hair styling force, but also impart excellent feel in use. The term "excellent feel in use" given to the hair styling force enhancer means that the feel of hair to which the hair styling composition containing the hair styling force enhancer is applied is excellent. Here, the "feel of hair" may include the firmness of hair, the astringency of hair, the tightness of hair (creaky feel), the catching of hair, the tackiness of hair, and/or the smoothness of hair. That is, the term "improving the feel of hair" as used herein means that the hair can be suppressed from being stiff, astringent, tight, caught and/or sticky, and/or the smoothness of the hair can be improved, as compared with the case where the hair styling force enhancer is not used. The improvement of the touch feeling of hair can be evaluated by a person skilled in the art by functional evaluation, and can be evaluated by a change in physical property values using an experimental facility. For example, the catching of hair, the tackiness of hair, and the smoothness of hair can be evaluated using the friction force of hair as an index, and more specifically, the maximum friction coefficient, the average coefficient of dynamic friction, and the change in the average coefficient of dynamic friction when the contact head is moved on the surface of hair as indices, as shown in the experimental examples described later.

In a preferred embodiment, the hair styling force enhancer of the present invention is a hair styling force enhancer which can enhance the hair styling force and hair styling force of the hair styling composition, is less likely to cause white dust during re-styling, and can impart excellent appearance to the hair to be styling. The term "white dust (hair)" as used herein means a powder blown onto the surface of the hair to which the hair styling composition is applied, and may be typically solidified by drying the component containing the hair styling composition, and exposed on the surface of the hair like the powder blown. As shown in experimental examples described below, in a preferred embodiment, the hair styling power enhancer of the present invention containing isomaltooligosaccharides can significantly suppress the occurrence of white chips (flaking) as compared with the case of applying a hair styling composition containing no isomaltooligosaccharides.

In addition, as shown in experimental examples described later, isomaltooligosaccharides have not only excellent effects of enhancing hair setting force and hair styling force, but also a hair care effect. Thus, in a preferred embodiment, the hair styling power enhancers of the present invention containing isomalto-oligosaccharides may also be suitable as a hair care agent. The hair care agent containing isomaltooligosaccharides as the active ingredient according to one embodiment of the present invention may be used for the purpose of both enhancing the hair styling ability and caring the hair, but may be used for the purpose of enhancing the hair styling ability.

Herein, "care effect" refers to the effect of protecting hair from hair damage. The hair damage is, for example, damage to hair caused by irradiation of ultraviolet rays contained in sunlight or the like, shampooing with a shampoo or the like, drying by a hair dryer, perming, bleaching, dyeing or the like, and may include, for example, reduction in softness of hair, reduction in tensile strength of hair, and damage to hair surface. Thus, protecting hair from hair damage refers to reducing or inhibiting the reduction in softness, the reduction in tensile strength, and/or the occurrence of damage to the hair surface caused by ultraviolet light, shampooing, drying, perming, bleaching, coloring, and the like, or to increasing the softness, increasing the tensile strength, and/or reducing damage to the hair surface of reduced hair.

As shown in the experimental examples described below, the softness of hair can be evaluated, for example, using the bending stiffness of hair as an index. On the other hand, the tensile strength can be evaluated, for example, on the basis of the load applied until the hair breaks when the hair is stretched in the longitudinal direction thereof. The damage to the hair surface can be evaluated, for example, by using the adsorption area of the cationic fluorescent dye on the hair surface as an index. Thus, in a preferred embodiment, the conditioning effect of the conditioning agent of an embodiment of the present invention means that the bending stiffness of the hair is reduced, the tensile strength is increased, and/or the adsorption area of the cationic fluorescent dye on the hair surface is reduced, as compared to the case where the conditioning agent is not used.

The nursing effect, i.e., the effect of protecting hair from hair damage, means that the user of the nursing agent can feel that the texture of hair is maintained well or that the texture of hair is improved. As an index for evaluating the texture of hair, for example, as shown in experimental examples described below, a person skilled in the art can evaluate the effect of the care agent that can be felt by the user of the care agent, that is, improvement of the texture of hair, by functional evaluation: softness, smoothness, dryness, gloss and/or moisturization of hair. Therefore, the care agent of the present invention containing isomaltooligosaccharides can improve softness, smoothness, dry feel, gloss and/or wettability of hair as compared with the case where the care agent is not used.

Isomaltooligosaccharides as the active ingredient of the hair styling aid of the present invention are branched oligosaccharides having alpha-1, 6 bonds with glucose as the constituting sugar. Examples of isomaltooligosaccharides include: isomaltose, panose, isomalttriose, isomalttetraose, isomaltpentaose, isomalthexaose and the like, but are not limited thereto.

The isomaltooligosaccharides used in the present invention can be typically obtained by allowing a transferase to act on a syrup containing maltose as a main component, and the production method thereof is not particularly limited, and they can be produced by fermentation, enzymatic, organic synthesis, or the like. The form of isomaltooligosaccharides blended in the hair styling power enhancer is not particularly limited, and may be, for example, liquid, semi-solid, powder, crystal, granule, or the like.

In the isomaltooligosaccharides used in the present invention, panose is α -D-glucopyranosyl- (1.fwdarw.6) - α -D-glucopyranosyl- (1.fwdarw.4) -D-glucose, which is a water-soluble reducing trisaccharide. As a method for producing panose, for example, a method for producing a panose-containing sugar mixture by (1) a method of allowing maltose to act on α -glucosidase (ec 3.2.1.20, also referred to as transglucosidase), (2) a method of allowing a mixture of maltose and sucrose to act on dextran sucrase (ec 2.4.1.5), and (3) a method of allowing amylose or starch to act on acid or enzyme (α -amylase, β -amylase, etc.) are known. These sugar mixtures can be further purified by suitable methods such as chromatography or crystallization to produce a panose-rich material.

Among the isomaltooligosaccharides used in the present invention, isomaltose, isomaltotriose, isomaltopyranose, isomaltohexaose and the like are water-soluble reducing oligosaccharides in which glucose is a constituent sugar and glucose as a constituent sugar is bonded to α -1, 6. As a method for producing these isomaltooligosaccharides, a method of allowing starch to act on an enzyme such as α -amylase, β -amylase, α -glucosyltransferase, etc. is known, and further, separation and purification may be performed by an appropriate method such as chromatography or crystallization.

The isomaltooligosaccharides blended in the hair styling power enhancer of the present invention may not necessarily be highly purified as long as they exert the desired action effects such as hair styling power enhancing action, and may be partially purified, may be the enzyme reaction solution itself, or may be in the form of an unseparated composition or a sugar mixture with other substances specific to the method for producing isomaltooligosaccharides. The purity of the isomaltooligosaccharide to be blended in the hair styling power enhancer of the present invention is not particularly limited, and generally, isomaltooligosaccharides of 10 mass% or more, preferably 20 mass% or more, and more preferably 40 to 99.99 mass% can be suitably used per solid component. The high purity product may be high purity isomaltooligosaccharide obtained by crystallization step or high purity isomaltooligosaccharide obtained by chromatography step. In addition, in a preferred embodiment, the isomalto-oligosaccharide to be incorporated in the hair styling power enhancer of the present invention may be hydrogenated.

The hair styling power enhancer of the present invention contains the isomaltooligosaccharides described above as an active ingredient. The form of the hair styling force enhancer of the present invention is not particularly limited, but may be, for example, liquid, semi-solid, powder, crystal, granule, tablet, or the like if hard is exemplified. The hair styling force enhancing action as referred to herein basically means an action of enhancing hair styling force, and may include any one of 1 or 2 or more of the following actions depending on the circumstances: the hair styling composition has the effects of imparting smoothness and non-sticky feel in use, facilitating reshaping, preventing white dust during reshaping, imparting excellent appearance, softening hair after rinsing, improving tensile strength, and reducing damage to hair surface.

The hair styling force enhancer of the present invention may contain any 1 isomaltooligosaccharide selected from the group consisting of isomaltose, panose, isomaltotriose, isomaltohexaose, isomaltooligosaccharide alone, but it is preferable to contain 2 or more isomaltooligosaccharides because the intended effects of the present invention, i.e., the hair styling force enhancing effect, the white dust suppressing effect, the effect of improving the feel in use and appearance, the effect of protecting and caring hair after rinsing, can be more remarkably exhibited. Among them, isomaltooligosaccharides used are particularly preferable because they have particularly remarkable effects when they contain both isomaltose and panose.

The ratio of isomaltose to panose is not particularly limited when the hair styling power enhancer of the present invention contains isomaltose and panose as isomaltooligosaccharides, but is preferably 5:1 to 1:15, particularly preferably 1:1 to 1:10, in terms of the mass ratio of isomaltose to panose, as shown in the experimental examples described below. In addition, from the viewpoint of obtaining excellent feel in use in addition to hair styling ability, the ratio of isomaltose to panose is preferably 1:3 to 1:10, more preferably 1:3 to 1:5, by mass ratio. From the viewpoint of nursing effect, the ratio of isomaltose to panose is preferably 1:1 to 1:10, particularly preferably 1:3 to 1:10, by mass.

The blending amount of isomaltooligosaccharides in the hair styling power enhancer of the present invention is not particularly limited as long as the desired effect of the present invention can be obtained, and the total content of isomaltooligosaccharides per solid component is usually 5 to 100 mass%, preferably 10 to 100 mass%, more preferably 20 to 100 mass%, still more preferably 30 to 100 mass%. In a preferred embodiment, the upper limit of the content of isomaltooligosaccharides per solid content in the hair styling force enhancer of the present invention is generally 99 mass% or less, which can be provided industrially in relatively large amounts, inexpensively and easily, 80 mass% or less for more inexpensive provision, and 60 mass% or less for further inexpensive provision. The isomaltooligosaccharides usable in the present invention are as described above, but in addition to the practice of the present invention, isomaltooligosaccharides-containing saccharides (trade name "pot (registered trademark)") (solid content: 74 mass% or more, isomaltooligosaccharides per solid content: 50 mass% or more, panose 28 mass% or more) sold by the company, ltd.) contain both isomaltose and panose in good proportions, and therefore can be suitably used as isomaltooligosaccharides contained in the hair styling aid of the present invention.

In a preferred embodiment, the hair styling force enhancers of the present invention are used by being compounded and contained in a hair styling composition. The hair styling composition as used herein means a composition for styling and fixing hair and maintaining hair style, and means a hair finishing cosmetic used for improving luster, touch, texture, ease of handling and the like of hair, and includes a hair cosmetic, a hair care cosmetic, a shampoo cosmetic, a hair waving cosmetic, a hair dyeing cosmetic, a hair care cosmetic and the like. Specific examples include: hair care compositions such as hair spray, hair tonic, hair cream, hair styling lotion, hair curler, hair tonic, hair gel, hair foam, hair mousse, hair spray, hair essence (hair serum), hair cream, hair wax, hair water grease (water grease), hair oil, hair cream, cosmetics, hair stick, or hair solid, hair care compositions such as hair tonic, hair essence, hair cream, hair blowing agent (hair brush), hair oil, hair bifurcation hair film (branch Mao), and antistatic compositions, shampoo, dry cleaning shampoo, hair conditioner, shampoo composition such as shampoo, conditioner, hair care agent, leave-in hair care agent, hair waving composition such as permanent waving agent, hair straightening agent, and hair shrinking agent Mao Jiaozheng, temporary hair dye such as hair dyeing stick, hair dyeing spray, hair dyeing conditioner, hair dyeing care agent, liquid or gel hair dye such as semi-permanent hair dye, hair dye such as hair dye, hair dye composition such as hair dye, and hair bleach, hair nourishing composition such as hair tonic and hair tonic, but not limited thereto.

The form of the hair styling composition to be treated is arbitrary, and may be any of aqueous solutions, soluble systems, emulsion systems, dispersion systems, solid systems, and the like. Specifically, it is possible to exemplify: solid, liquid, mist, aerosol, gel, mousse, emulsion, cream, lotion, etc. Although the leave-on form is more preferable, the form may be a rinse-off form requiring rinsing after use.

In the present specification, the term "incorporating isomaltooligosaccharide into the hair styling aid or the hair styling aid containing isomaltooligosaccharide into the hair styling composition" means a process from the stage of the hair styling aid or the raw material of the hair styling composition to the stage of the product, or a process for incorporating isomaltooligosaccharide into the hair styling aid or the hair styling aid containing isomaltooligosaccharide into the conventional product by, for example, 1 or 2 or more methods selected from the group consisting of mixing, kneading, dissolving, melting, dispersing, suspending, emulsifying, impregnating, penetrating, dispersing, coating, covering, spraying, injecting, crystallizing, solidifying, and reverse-micelle are used. By these methods, the step of adding or compounding isomaltooligosaccharides or isomaltooligosaccharides-containing hair styling power enhancers can be performed not only under normal pressure conditions but also under high pressure conditions, under reduced pressure conditions, or even under supercritical conditions using supercritical fluid.

The amount of isomaltooligosaccharides to be blended in the hair styling composition containing the hair styling aid of the present invention is not particularly limited as long as the isomaltooligosaccharides to be blended can exert the desired action effects such as hair styling aid enhancing effects, but is usually 0.1 to 30.0% by mass, preferably 0.1 to 25.0% by mass, more preferably 0.5 to 20.0% by mass, and even more preferably 1 to 10.0% by mass, in terms of solid content, of the total amount of isomaltooligosaccharides relative to the total mass of the hair styling composition. If the amount is less than 0.1% by mass based on the total mass of the hair styling composition, the effect of isomaltooligosaccharides on enhancing hair styling power may not be sufficiently exhibited, which is not preferable. In contrast, if it exceeds 30.0 mass%, the feeling of use may be deteriorated, which is not preferable.

In addition, in one embodiment, in the case where the hair styling composition containing the hair styling force enhancer of the present invention contains a substance having an amino group in the molecule such as an amino acid, it is expected that the reduction end of isomaltooligosaccharide and the maillard reaction between the amino group will cause problems such as deterioration in the quality of the composition, and therefore, the isomaltooligosaccharide used in the hair styling force enhancer may be advantageously hydrogenated to reduce the reducibility thereof.

In a preferred embodiment, the hair styling force enhancer of the present invention may be used in place of a part or all of a hair styling component such as a water-soluble polymer used in a general hair styling composition.

When the hair styling force enhancer of the present invention is incorporated into a hair styling composition, the hair styling force of the hair styling composition is enhanced, the hair styling force is enhanced, and the discomfort feeling upon use or after rinsing is improved. In a preferred embodiment, the hair styling composition containing the hair styling force enhancer of the present invention has the following characteristics, as compared with a hair styling composition containing no hair styling force enhancer of the present invention: the hair is not sticky even after use, and particularly in the case of soft hair, the hair is given toughness, and the hair can be easily treated. In another preferred embodiment, the hair styling composition containing the hair styling force enhancer of the present invention has excellent care effects of softening hair after rinsing, improving tensile strength, and reducing damage to the hair surface, and also has excellent hair protecting effects. Furthermore, the isomaltooligosaccharides contained in the hair styling force enhancers of the present invention have a moisturizing effect on skin and a denaturation-inhibiting effect on proteins, and thus the hair styling force enhancers of the present invention have the following advantages by blending: can inhibit the occurrence and irritation of scalp and skin itching, macula, etc. caused by irritation factor such as surfactant contained in hair styling composition.

In the hair styling composition of the present invention, 1 or 2 or more components generally used in hair styling compositions, typified by components imparting hair styling power, may be further appropriately blended in an amount and quality within a range not to impair the effects of the present invention, in addition to isomaltooligosaccharides, depending on the form and purpose of the hair styling composition. Examples of such an optional component include: examples of the water-soluble polymer compound, water-soluble polyhydric alcohol, liquid paraffin, squalane, lanolin derivative, higher alcohol, various ester oils, avocado oil, palm oil, silicone oil, high molecular silicone oil, polyalkylene glycol polyether, oil such as carboxylic acid oligoester compound, terpene hydrocarbon, etc., moisturizing agents such as pyrrolidone carboxylate, ultraviolet absorbent, acrylic resin, silicone resin, resins such as polyvinylpyrrolidone, proteins or protein hydrolysates such as soybean protein, gelatin, collagen, fibroin, elastin, etc., preservatives such as ethyl p-hydroxybenzoate, butyl p-hydroxybenzoate, various amino acids, biotin, activators such as pantothenic acid derivative, etc., diluents such as gamma-oryzanol, dextran sulfate sodium, vitamin E, etc., water, ethanol, isopropyl alcohol, tetrachlorodifluoroethane, etc., and examples of materials usable as raw materials for cosmetics or quasi drugs (external products) other than the above, drugs, antibacterial agents, antioxidants, perfumes, preservatives, chelating agents, plant extracts, external agents, skin conditioning agents such as those described in the above, pH adjusting agents, skin conditioning agents, and the like are described in the patent documents.

The water-soluble polymer compound to be appropriately blended is not particularly limited, and examples thereof include natural polymer compounds, semisynthetic polymer compounds, and synthetic polymer compounds. Specifically, examples of the natural polymer compound include: gum arabic, gum tragacanth, guar gum, locust bean gum, carrageenan, quince seed, pullulan, gelatin, shellac, rosin, casein, hyaluronic acid, chondroitin sulfate and other mucopolysaccharides or salts thereof. Examples of the semisynthetic polymer compound include: sodium carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, ethyl cellulose, hydroxypropyl cellulose, crystalline cellulose, and the like. Examples of the synthetic polymer compound include: polyvinyl alcohol, (vinyl pyrrolidone/VA) copolymer, sodium polyacrylate, carboxyvinyl polymer (carbomer), polyvinyl methylcellulose, polyamide resin, silicone, and the like. These water-soluble polymer compounds may be used alone or in combination of 2 or more. When the water-soluble polymer compound is blended, the blending amount is not particularly limited, and may be 0.001 to 10.0% by mass, preferably 0.01 to 7.0% by mass, based on the total mass of the hair styling composition.

Examples of the water-soluble polyol that can be appropriately blended include: ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1, 3-butanediol, polytetramethylene glycol, glycerol, diglycerol, polyglycerol, sorbitol, maltitol, mannitol and derivatives thereof are preferably used, and 1, 3-butanediol, sorbitol, mannitol, propylene glycol, dipropylene glycol, glycerol and glycerol derivatives are preferably used. These water-soluble polyols may be used in 1 kind or in combination of 2 or more kinds. The blending amount thereof is not particularly limited, and may be 0.01 to 20.0% by mass, preferably 1.0 to 10.0% by mass, based on the total mass of the hair styling composition.

In a preferred embodiment, the hair styling composition of the present invention may be used as an aerosol stock solution in which the hair styling composition of the present invention is mixed with a solvent typified by water and alcohol, together with an aerosol propellant.

The aerosol propellant is not particularly limited as long as it can be used in aerosol cosmetics, and examples thereof include: dichlorodifluoromethane, difluoromonochloroethane, chlorodifluoromethane, dichlorotetrafluoroethane, tetrafluoroethane, dimethyl ether (DME), propane, isobutane, n-butane, isopentane, liquefied petroleum gas (LPG; propane, isobutane, n-butane are the main components), nitrogen, carbon dioxide or mixtures thereof, and the like. The aerosol propellant may be used in an amount of 1 or 2 or more kinds in combination.

The method for producing the aerosol hair styling composition of the present invention is not particularly limited, and for example, the aerosol hair styling composition of the present invention can be obtained by dissolving isomaltooligosaccharides in a solvent, emulsifying (dispersing) the isomaltooligosaccharides together with other additives such as a surfactant, if necessary, and adding a propellant thereto. In this case, the isomaltooligosaccharide-containing composition and propellant are usually filled into a known pressure-resistant container for aerosol by a conventional method.

Experiment

The invention will be described in more detail by experiments.

< experiment 1: hair styling force test

To examine the effect of isomaltooligosaccharides on hair styling, a liquid hair styling composition containing isomaltooligosaccharides was prepared and tested for evaluation of hair styling ability. As isomaltooligosaccharides, isomaltooligosaccharide-containing sugar solutions prepared in the following experiments 1-1, isomaltooligosaccharides (syrup, solid content 76.4 mass%, isomaltose purity 98.2 mass%, available from Corp., ltd.), and panose (powder, panose purity 97.6 mass%, available from Corp., ltd.) were used.

< experiment 1-1: preparation of isomaltooligosaccharides-containing sugar solutions

A sugar solution containing isomaltooligosaccharides was prepared according to the method described in experiment 1 of JP-A-4-360663. Specifically, powdered maltose (trade name, product of kagaku corporation) was added as a 30 mass% aqueous solution, and an enzyme containing α -glucosidase (trade name, transglucosidase L, product of kagaku corporation) was added at 0.08 mass% per maltose solid content, adjusted to ph5.5, reacted at 55 ℃ for 18 hours, and then deactivated by heating. The liquid was filtered and decolorized by a conventional method, and desalted, purified and concentrated by an ion exchange resin (H-type and OH-type) to obtain an isomaltooligosaccharide-containing sugar solution having a solid content of 80% by mass. According to the results of the conventional method analysis, the sugar composition of the sugar solution containing isomaltooligosaccharides is as follows: 21.4 mass% of glucose, 17.6 mass% of maltose, 9.9 mass% of isomaltose, 4.3 mass% of maltotriose, 29.8 mass% of panose, 1.7 mass% of isomaltotriose, 15.3 mass% of a polymer sugar containing isomaltooligosaccharides of tetraose or more, and 41.4 mass% or more of isomaltooligosaccharides of each solid content.

< experiment 1-2: preparation of the subject compositions

The isomaltooligosaccharide-containing sugar solution prepared in experiment 1-1 (100 g in terms of solid content of isomaltooligosaccharide) was added with ultrapure water to a total amount of 700g, and the mixture was uniformly mixed with a stirrer to prepare an isomaltooligosaccharide solution. Next, 50g of a (vinylpyrrolidone/VA) copolymer (trade name "Luviskol VA64P", BASF Japanese) was added to 100g of ethanol as a resin having a hair styling effect, and 4g of phenoxyethanol was further added as a preservative, and dissolved using a stirrer to prepare a (vinylpyrrolidone/VA) copolymer solution. Next, a (vinylpyrrolidone/VA) copolymer solution was added to the isomaltooligosaccharide solution, and after mixing with stirring by a stirrer, ultrapure water was added to make the total amount 1000g, thereby preparing a liquid test composition 1 containing isomaltooligosaccharide at a final concentration of 10 mass% based on the solid content. Further, a liquid test composition 4 was prepared in the same manner as in the preparation method of the test composition 1 except that, instead of adding ultrapure water to 131g (100 g in terms of solid content) of isomaltooligosaccharide-containing sugar solution in the slurry, liquid test composition 2 was prepared in the same manner as in the preparation method of the test composition 1, and instead of adding ultrapure water to 100g of the powdery panose in the same manner as in the preparation method of the test composition 1, liquid test composition 3 was prepared in the same manner as in the preparation method of the test composition 1, and instead of using 32.8g (25 g in terms of solid content) of isomaltooligosaccharide-containing sugar and 75g of powdery panose in the slurry, liquid test composition 2 was prepared in the same manner as in the preparation method of the test composition 1. A liquid composition prepared by the same method as that of the test composition 1 was used as the control composition 1, except that ultrapure water was used instead of the isomaltooligosaccharide-containing sugar solution. The compositions of the test compositions 1-4 and control composition 1 are shown in Table 1.

TABLE 1

< experiments 1-3: preparation of test hair bundles for determining hairstyling force

Bundles of hair (trade name "Mao Heifa BS-B3N", product name), after immersing in 9 mass% aqueous sodium lauryl sulfate solution (trade name "Efak E-27C", product name, king corporation) for 1 hour, were diluted 3-fold with ultrapure water, tap water was used, ultrapure water was used, after which the solution was rinsed thoroughly with running water, and then dried completely with a cold air blower, and then dried naturally at room temperature overnight. The dried hair bundles were subdivided into hair bundles each 1g, and the hair bundles were fixed with a rubber band, and the tips of the hairs were cut out from a length of 15cm below the rubber fixing the subdivided hair bundles, and were subjected to the test. To 1g of hair bundle, 0.5g of each of the test compositions 1 to 4 was dropped, and then applied to the hair bundle by hand uniformly. The hair bundle coated with the test composition was wrapped with aluminum foil to a width of 1cm, and was molded into a flat plate shape by applying a predetermined pressure from above, and allowed to stand in a constant temperature and humidity chamber (22 ℃ C., relative humidity: 50%) for 1 hour. After 1 hour, the molded hair bundles were taken out of the aluminum foil, dried in the constant temperature and humidity chamber in a state suspended on a shelf for 24 hours, and hair bundles coated with the test compositions 1 to 4 were prepared for measuring hair styling force. In addition, a hair bundle coated with the control composition 1 was prepared in the same manner, except that the control composition 1 was coated instead of each of the test compositions.

< experiments 1-4: determination of hairstyling force

The hair styling force was evaluated by using the breaking strength of the hair bundles to which each of the test composition and the control composition 1 was applied (hereinafter, also referred to as "hair bundles to which the test composition was applied" or "hair bundles to which the control composition 1 was applied", respectively) as an index. The breaking strength of the hair bundle was measured using a rheometer (trade name "CR-500 DX-SI", manufactured by Corp.). Specifically, the hair bundle coated with each of the test compositions or the hair bundle coated with the control composition 1 was transferred to two measuring tables having upper surfaces of 1cm in width, 5cm in height and 7.8cm apart and having horizontal surfaces, and a metal probe (trade name "pressure sensitive shaft No.34 tooth form (a)", division, inc.) having a wedge-shaped tip was vertically lowered at a speed of 60 mm/min to apply pressure to the hair bundle, and the probe was pressed into 3cm after contacting the hair bundle. The load was measured at 50m second intervals, and the time at which the probe showed the maximum load after contacting the hair bundle was taken as the time at which the hair bundle was broken, and the load (N) at this time was taken as the breaking strength of the hair bundle. The total of 3 measurements of the load of the hair bundles coated with each of the test composition or the control composition 1 were performed using 3 hair bundles prepared in the same manner. The average value and standard deviation of the maximum load (breaking strength) at the time of breaking the hair bundle measured for the hair bundle coated with each of the test composition or the control composition 1 are shown in table 2.

< statistical analysis >)

The measured values are expressed as mean ± Standard Deviation (SD). Statistical analysis a non-corresponding t-test was performed. As the significance level (p-value), less than 0.05 (risk less than 5%) was judged to be a significant difference.

TABLE 2

	Breaking strength (N)
		Hair bundle coated with control composition 1	0.28±0.04
Hair bundle coated with test composition 1	0.59±0.16 ^*
		Hair bundle coated with test composition 2	0.43±0.09 ^*
Hair bundle coated with test composition 3	0.51±0.04 ^**
		Hair bundle coated with test composition 4	0.73±0.15 ^**

* : hair strands with p <0.05vs coated control composition 1

* *: hair strands with p <0.01vs coated control composition 1

As shown in table 2, hair bundles coated with any one of the test compositions 1 to 4 containing isomaltooligosaccharides in the same amount as the solid content were prepared, and as a result, the hair styling force was evaluated, and as a result, the maximum load at the time of breaking the hair bundles (hereinafter, sometimes simply referred to as "breaking strength") was 0.28±0.04N, whereas the breaking strength of the hair bundles coated with the test compositions 1 to 4 containing isomaltooligosaccharides prepared in experiment 1-1 was significantly increased as compared with the hair bundles coated with the control composition 1, in which the breaking strength of the hair bundles coated with the test compositions 1 to 4 containing isomaltooligosaccharides as isomaltooligosaccharides, or both isomaltooligosaccharides and pansaccharides was 0.59±0.16N, 0.43±0.09N, 0.51±0.04N, and 0.73±0.15N, respectively. It was also found that the breaking strength of the hair bundles coated with the test composition 1 containing the isomaltooligosaccharide-containing sugar solution prepared in experiment 1-1 was significantly increased as compared with the breaking strength of the hair bundles coated with the test composition 2 containing only isomaltooligosaccharide or the breaking strength of the hair bundles coated with the test composition 3 containing only panose as isomaltooligosaccharide. It was also found that, in order to achieve a mass ratio (1:3) substantially equal to the mass ratio of isomaltose and panose (isomaltose 9.9 mass%: panose 29.8 mass%) contained in the isomaltooligosaccharide-containing saccharide solution prepared in experiment 1-1, the breaking strength of the hair bundle of the test composition 4 prepared by applying isomaltose and panose was further significantly increased. The results show that by coating the test composition 1 or the test composition 4 containing both isomaltose and panose, the hair bundle is significantly hardened, i.e., the hair styling ability is significantly enhanced, compared to the case of using isomaltose alone or panose alone as isomaltooligosaccharide. In addition, the breaking strength of the hair strand of the test composition 4 coated with isomaltose (purity 98.2%) and panose (purity 97.6%) as isomaltooligosaccharides was high compared with the breaking strength of the hair strand of the test composition 1 coated with isomaltooligosaccharides-containing sugar solution (isomaltooligosaccharides content 41.4 mass% or more) containing the saccharides other than isomaltooligosaccharides prepared in experiment 1-1, which showed that the effective ingredient of the hair styling power, which was a component having a significant stiffening effect of the hair, was isomaltooligosaccharides. The reason why isomaltooligosaccharides harden hair bundles more effectively than other saccharides is not clear, but it is presumed that the branched structure peculiar to isomaltooligosaccharides enters through the interstices of the horny layer of hair to enhance the strength of hair. The isomaltooligosaccharides used for coating hair in this way enhance the adhesion of the hairs to each other by electrostatic interaction via hydrogen bonds of hydroxyl groups or the like, contributing to an improvement in hair styling power. Since isomaltooligosaccharides have a branched structure through α -1,6 bonds that is not present in the saccharides other than isomaltooligosaccharides (glucose, maltose, maltotriose, etc.) contained in the isomaltooligosaccharide-containing saccharide solution prepared in experiment 1-1, this branched structure is considered to play an important role in enhancing hair styling ability.

< experiment 2: influence of the ratio of isomaltose to panose on hairstyling force

As isomaltooligosaccharides, various hair styling compositions were prepared in different proportions of isomaltose and panose, and experiments for evaluating hair styling ability were performed.

< experiment 2-1: preparation of the subject compositions

Liquid test compositions 5 to 13 were prepared in the same manner as in experiments 1 to 2 except that 9 isomaltooligosaccharides mixtures having different mixing ratios of isomaltose and panose, in which isomaltooligosaccharides and panose were mixed in the mass ratios shown in table 3, were used as isomaltooligosaccharides (i.e., the mass ratios of isomaltooligosaccharides and panose in the test compositions 5 to 13 described below were adjusted to 100:0, 83:17, 75:25, 50:50, 25:75, 17:83, 9:91, 6:94, and 0:100, respectively), and the final concentrations of the isomaltooligosaccharides mixtures in the test compositions were adjusted to 3 mass%. A liquid composition prepared in the same manner as the preparation methods of the test compositions 5 to 13 was used as the control composition 2, except that ultrapure water was used instead of the isomaltooligosaccharide mixture. The compositions of the test compositions 5 to 13 and the control composition 2 are shown in Table 3.

TABLE 3

< experiment 2-2: preparation of test hair bundle and measurement of hairstyling force

Test hair tresses were prepared in the same manner as in experiments 1 to 3, except that instead of the liquid test compositions 1 to 4 containing isomaltooligosaccharides and the liquid control composition 1 containing no isomaltooligosaccharides, the liquid test compositions 5 to 13 containing isomaltooligosaccharide mixtures and the liquid control composition 2 containing no isomaltooligosaccharide mixtures were coated. The hair styling force of the test hair bundles was measured using the method based on experiments 1-3. The maximum load (breaking strength) at which the hair bundle coated with each of the test composition or the control composition 2 breaks is shown in table 4.

TABLE 4

As shown in table 4, hair bundles were prepared, which were each coated with any one of liquid test compositions 5 to 13 containing isomaltooligosaccharides in the same amount as the isomaltooligosaccharides and the mass ratio of isomaltooligosaccharides to panose was 100:0 (1:0), 83:17 (5:1), 75:25 (3:1), 50:50 (1:1), 25:75 (1:3), 17:83 (1:5), 9:91 (1:10), 6:94 (1:15), 0:100 (0:1), and each of which was different from each other in terms of solid content, and as a result, hair styling force was evaluated, hair bundles coated with a control composition 2 prepared in the same manner as the test compositions 5 to 13 except that isomaltooligosaccharides were not contained had a breaking strength of 0.13N, hair bundles coated with test compositions 5 to 13 containing isomaltooligosaccharides as isomaltooligosaccharides had breaking strengths of 0.31N, 0.14N, 0.55.0.0.55N, 0.55, N0.55.0.52, N, n.0.55.0.55, N, n.55.0.13, N, n.55.0.55, N, n. respectively: the breaking strength of the hair bundles was enhanced by applying test compositions 5 to 13 containing only isomaltose, isomaltose and panose, or only panose as isomaltooligosaccharide. It was also found that the breaking strength of the hair bundles coated with the test compositions 6 to 12 containing isomaltose and panose (i.e., the test compositions having a mass ratio of isomaltose to panose in the range of 5:1 to 1:15 in terms of solid content) was significantly enhanced as compared with the breaking strength of the hair bundles coated with the test composition 5 containing isomaltose alone as isomaltooligosaccharide or the breaking strength of the hair bundles coated with the test composition 13 containing panose alone as isomaltooligosaccharide. The results show that when the mass ratio of isomaltose to panose is in the range of 5:1 to 1:15 as isomaltooligosaccharide in terms of solid content, the hair bundle is significantly hardened, i.e., the hair styling ability is significantly enhanced. Further, it was found that the breaking strength of the hair bundles coated with the test compositions 8 to 11 containing isomaltose and panose (i.e., the test compositions having a mass ratio of isomaltose to panose in the range of 1:1 to 1:10 in terms of solid content) was further remarkably enhanced. The results show that when the mass ratio of isomaltose to panose is in the range of 1:1 to 1:10 as isomaltooligosaccharides in terms of solid content, the hair bundle becomes more remarkably stiff, i.e., the hair styling power is more remarkably enhanced.

< experiment 2-3: influence of the ratio of isomaltose to panose on the feel of Using a liquid test composition containing an isomaltooligosaccharide mixture and the Properties of the test Hair Strand coated with the test composition

Using the test compositions 5 to 13 and the control composition 2 obtained in experiment 2-1, the feel of use when each composition was applied to the hair bundle and the properties of the hair bundle to which each composition was applied were evaluated. The feel (film feel, stickiness) and the properties (white chips after combing) of the compositions when applied to the hair bundles were evaluated by combing the test hair bundles prepared in the same manner as in experiment 2-2 with a polypropylene transverse comb (comb teeth spacing of 2 mm) 5 times, and then visually inspecting the test hair bundles and touching with hands by 6 trained panelists.

The evaluation was performed for 3 items of "film feel", "stickiness" and "white dust after comb". The term "film feel" means that the hair styling force required to maintain the hair style is higher than that of the hair to which the test composition is not applied, and that the hair is not hard, astringent, or taut (creaky) due to excessive hair bundle hardening caused by the application of the test composition, and the hair is evaluated as to how much uncomfortable. The "tackiness" was evaluated by how much tacky and uncomfortable feeling was caused by the application of the test composition. The "white chips after combing" were evaluated by visually observing the amount of resin chips contained in the test composition peeled off by combing after the test composition was applied.

The evaluation of each item was scored on 5 scales based on the following criteria: 5: very good, 4: good, 3: not good or bad, 2: difference, 1: very poor. The average score was calculated by dividing the total of the score values of the panelists by the number of panelists, and was determined as: 4 minutes or more: very good, 3 minutes or more: o, 2 minutes or more: delta, less than 2 points: and x. The results obtained are shown in Table 5.

TABLE 5

As shown in table 5, when the liquid test compositions prepared by varying the mass ratio of isomaltose to panose in the range of 100:0 to 0:100 using isomaltose and/or panose as isomaltooligosaccharides were applied to hair bundles and tested, the feel of use (film feel) was good (judged as "o" or "excellent") when the mass ratio of isomaltose to panose was 1:1 to 1:10, and the feel of use (judged as "excellent") when the mass ratio of isomaltose to panose was 1:3 to 1:5 was significantly good (judged as "excellent"). The feeling of use (stickiness) was good when the mass ratio of isomaltose to panose was 1:1 to 1:10 (judged as "good" or "good"), and significantly good when the mass ratio of isomaltose to panose was 1:3 (judged as "good"). The properties (white chips after combing) were good when the mass ratio of isomaltose to panose was 1:3 to 1:10 (judged as ". Smallcircle.") and significantly good when the mass ratio of isomaltose to panose was 1:3 to 1:5 (judged as "verygood"). As a comprehensive evaluation, the ratio of isomaltose to panose was good (judged as "good" or "good") when the mass ratio of isomaltose to panose was 1:3 to 1:10, and the ratio of isomaltose to panose was significantly good (judged as "good") when the mass ratio of isomaltose to panose was 1:3 to 1:5. The results indicate that when isomaltose and panose are used as the active ingredients of the hair styling aid, 2 isomaltooligosaccharides, the ratio of isomaltose to panose by mass is 1:3 to 1:10, and that the effects are particularly remarkable when the ratio of isomaltose to panose by mass is 1:3 to 1:5.

< experiment 3: effect of isomaltooligosaccharide content on feel of use of Hair styling composition and properties of hair bundles after application of Hair styling composition >

A hair styling composition was prepared as a mixture ratio (mass ratio) of isomaltooligosaccharides to panose, and only the isomaltooligosaccharides content of the composition was varied, and a test was performed to evaluate the feel and properties of the hair styling composition when the hair styling composition was applied to hair bundles.

< experiment 3-1: preparation of the subject compositions

Liquid test compositions 14 to 21 were prepared in the same manner as in experiment 1-2, except that an isomaltooligosaccharide mixture having a mass ratio of isomaltooligosaccharide to panose of 1:3 was used as isomaltooligosaccharide, and the final concentration of isomaltooligosaccharide in the test compositions was set to 0.1 to 40 mass% (i.e., the final concentrations of isomaltooligosaccharides in the test compositions 14 to 21 described later were prepared to be 0.1, 0.5, 1, 5, 10, 20, 25, 30 mass%), respectively. A liquid composition prepared in the same manner except that ultrapure water was used instead of the isomaltooligosaccharide mixture was used as control composition 3. The compositions of the test compositions 14 to 21 and the control composition 3 are shown in Table 6.

TABLE 6

< experiment 3-2: preparation of test hair tresses and evaluation of feel in use of isomaltooligosaccharide-containing Hair styling composition Using test hair tresses >

Test hair tresses were prepared in the same manner as in experiments 1 to 3, except that instead of the liquid test compositions 1 to 4 containing isomaltooligosaccharides and the liquid control composition 1 containing no isomaltooligosaccharides, the liquid test compositions 14 to 21 containing isomaltooligosaccharide mixtures and the liquid control composition 3 containing no isomaltooligosaccharide mixtures were coated. Evaluation of the feel (film feel, tackiness) and the properties (white chips after combing) of each of the compositions prepared by applying to the hair bundle was performed in the same manner as in experiments 2 to 3. The results obtained are shown in Table 7.

TABLE 7

As shown in table 7, when a mixture of isomaltooligosaccharides prepared by mixing isomaltooligosaccharides and panose at a mass ratio of 1:3, liquid test compositions 14 to 21 prepared by varying the final concentration of isomaltooligosaccharides in the test composition within a range of 0 to 30 mass%, and control composition 3 were applied to hair bundles, the use feeling (film feel) of the test composition was good (judged "o" or "excellent") when the final concentration of isomaltooligosaccharides in the test composition was 0.5 to 30 mass%, and significantly good (judged "excellent") when the final concentration of isomaltooligosaccharides was 1 to 20 mass%. The feeling of use (stickiness) was good when the final concentration of isomaltooligosaccharides in the composition to be tested was 0 to 20 mass% (judged as "good" or "good"), and significantly good when the final concentration of isomaltooligosaccharides was 0 to 10 mass% (judged as "good"), respectively. The property (white chips after combing) was good when the final concentration of isomaltooligosaccharides in the tested composition was 0.1 to 20 mass% (judged as "good" or "good"), and significantly good when the final concentration of isomaltooligosaccharides was 0.5 to 10 mass% (judged as "good"). As a comprehensive evaluation, the final concentration of isomaltooligosaccharides was good (judged as ". Smallcircle.") of 0.5 to 20 mass%, and the final concentration of isomaltooligosaccharides was significantly good (judged as ". Smallcircle.") of 1 to 10 mass%. The above results indicate that the hair styling composition exhibiting excellent feel and properties in use can be obtained when isomaltooligosaccharides are used in the range of 0.5 to 20 mass% in final concentration, and particularly the hair styling composition exhibiting particularly excellent feel and properties in use can be obtained when isomaltooligosaccharides are used in the range of 1 to 10 mass% in final concentration, relative to the total mass of the liquid hair styling composition.

< experiment 4: effect of isomaltooligosaccharides on hairstyling and finishing Properties

A hair styling composition containing isomaltooligosaccharides was prepared, and experiments for evaluating hair styling power and styling power were performed.

< experiment 4-1: preparation of the subject compositions

Test compositions and control compositions for this experiment were prepared by the following methods.

Control composition 4

A composition prepared in the same manner as in control composition 1 of experiment 1-2 was used as control composition 4.

Control composition 5

A liquid composition prepared in the same manner as in control composition 1 of experiments 1-2 was used as control composition 5, except that a (vinyl pyrrolidone/VA) copolymer of control composition 4 was replaced with a (methacryloxyethyl carboxybetaine/alkyl methacrylate) copolymer (trade name "RAM resin", osaka organic chemical industry co., ltd.) as a resin having a hair styling effect.

Control composition 6

A liquid composition prepared in the same manner as in the test composition 1 of experiment 1-2 was used as the control composition 6, except that maltitol (trade name "Amal ty 75%", mitsubishi life sciences) and PEG-6/PEG-32 (trade name "PEG #1500", daily oil company) which were conventionally used for improving the hair bundle finishing power (toughness) were used instead of the isomaltooligosaccharide-containing saccharide solution prepared in experiment 1-1.

Control composition 7

A liquid composition prepared in the same manner as in the test composition 1 of the test 1-2 was used as the control composition 7, except that a (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer was used instead of the (vinylpyrrolidone/VA) copolymer, and maltitol (trade name "Amal ty 75%", mitsubishi life sciences Co., ltd.) was used instead of the isomaltooligosaccharide-containing saccharide solution prepared in the test 1-1, and PEG-6/PEG-32 (trade name "PEG #1500", mitsubishi life sciences Co., ltd.) was used.

Test compositions 22, 23

A liquid composition prepared in the same manner as in the test composition 1 of experiment 1-2 except that a (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer was used instead of the (vinylpyrrolidone/VA) copolymer was used as the test composition 22. In addition, a liquid composition prepared in the same manner as in the test composition 22 was used as the test composition 23 except that the blending amount of the isomaltooligosaccharide-containing saccharide solution prepared in the experiment 1-1 was halved.

In this experiment, in addition to the control compositions 4 to 7 and the test compositions 22, 23 prepared as described above, the test composition 1 prepared in experiment 1-2 was used. The compositions of the test compositions 1, 22, 23 and the control compositions 4 to 7 are shown in Table 8.

TABLE 8

< experiment 4-2: preparation of test hair bundles and evaluation of hairstyling force for measuring hairstyling force and styling force >

Test hair bundles were prepared in the same manner as in experiments 1 to 3, except that test compositions 1, 22, 23 and control compositions 4 to 7 were coated instead of test compositions 2 to 4 and control composition 1. For each hair bundle tested, the hair styling force was determined using the method based on experiments 1-4. The average and standard deviation of the maximum load (breaking strength) at which the hair bundle coated with each test composition or each control composition was broken are shown in table 9.

< experiment 4-3: evaluation of hair-setting ability

The hair setting force was evaluated by using the toughness of the hair strands coated with each of the test compositions or each of the control compositions (hereinafter, sometimes referred to as "hair strands coated with the test composition" or "hair strands coated with the control composition"), respectively, as an index. The toughness of the hair bundle was measured using a rheometer (trade name "CR-500DX-SI I", corp.). Specifically, the hair bundles coated with each of the test compositions or the hair bundles coated with each of the control compositions were transferred to two measuring tables having upper surfaces of 1cm in width and 5cm in height and 7.8cm apart and having horizontal surfaces, and a metal probe (trade name "pressure-sensitive shaft No.34 tooth form (A)", made by Corp.) having a wedge-shaped tip was vertically lowered at a speed of 60 mm/min to apply pressure to the hair bundles, and the probe was pressed into the hair bundles by 3cm after contacting the hair bundles. During this period, the load was measured at 50 msec intervals. The movement distance of the probe from when the probe contacts the hair bundle and before half of the maximum load is displayed to when the probe contacts the hair bundle and after half of the maximum load is displayed again is used as an index of the toughness of the hair bundle. For the measurement of the toughness of the hair bundles coated with each test composition or each control composition, 3 times using 3 hair bundles prepared in the same way were performed. The average value and standard deviation of the movement distance of the probe between half values of the maximum load at the time of breaking the hair bundle, measured for the hair bundle coated with each of the test composition or each of the control compositions, are shown in table 9.

TABLE 9

	Breaking strength (N)	Distance of movement (cm)
			Control composition 4	0.34±0.09	9.33±2.83
Control composition 5	0.35±0.07	8.48±0.93
			Control composition 6	0.17±0.04	17.12±2.41
Control composition 7	0.13±0.03	10.95±4.49
			Test composition 1	0.59±0.16	17.63±5.29
Test composition 22	0.52±0.08	20.77±2.84
			Test composition 23	0.35±0.13	25.03±4.37

As shown in table 9, the hair bundles coated with any one of the test compositions 1, 22, 23 and the control compositions 4 to 7 were prepared, and the hair styling force and the styling force were evaluated, and as a result, the breaking strength as an index of the hair styling force was 0.34±0.09N, 0.35±0.07N, and the moving distance as an index of the styling force was 9.33±2.83cm, 8.48±0.93cm for the hair bundles coated with the control compositions 4 and 5 containing the hair styling resin alone. In contrast, the hair bundles coated with the conventional control compositions 6 and 7 containing the conventional additives for improving the toughness of the hair bundles had a moving distance of 17.12.+ -. 2.41cm and 10.95.+ -. 4.49cm, and the moving distance was found to be increased as compared with the hair bundles coated with the control compositions 4 and 5, but on the other hand, the breaking strength was 0.17.+ -. 0.04N and 0.13.+ -. 0.03N, and the breaking strength was decreased as compared with the hair bundles coated with the control compositions 4 and 5. This indicates that conventional additives such as maltitol and PEG-6/PEG-32 improve the hair styling ability (toughness) but reduce the hair styling ability (hardness). On the other hand, the hair bundles coated with the test compositions 1 and 22 containing isomaltooligosaccharides prepared in experiment 1-1 as isomaltooligosaccharides had a moving distance of 17.63 ±5.29cm and 20.77±2.84cm, which was confirmed to be equal to or longer than the moving distance of the hair bundles coated with the control compositions 5 and 6 containing the conventional additives, and the breaking strength was 0.59±0.16N and 0.52±0.08N, which was significantly greater than the breaking strength of the hair bundles coated with the control compositions 5 and 6 containing the conventional additives. From this, it was found that isomaltooligosaccharide-containing saccharides improved both styling and styling power of hair. In addition, the hair bundle coated with the test composition 23 prepared in experiment 1-1, in which the amount of the isomaltooligosaccharide-containing sugar solution was halved, had a breaking strength of 0.35.+ -. 0.13N and a moving distance of 25.03.+ -. 4.37cm, and showed an improvement in the hair styling ability while maintaining the hair styling ability, although slightly inferior to the hair styling ability obtained with the test compositions 1 and 22.

The above results indicate that isomaltooligosaccharides have not only a hair styling effect but also a finishing effect, as compared with additives conventionally used. Therefore, isomaltooligosaccharides can be advantageously used as excellent styling materials for enhancing both styling and finishing forces of hair.

< experiment 5: evaluation of touch and Properties of Hair coated with gel-like composition containing isomaltooligosaccharides ]

In order to further investigate the feel of the isomaltooligosaccharide-containing hair styling composition in detail, a gel-like composition containing isomaltooligosaccharide was prepared, and the hair coated with the gel-like composition was subjected to a test for evaluating the feel (hanging, smoothness, stickiness) and then to a test for evaluating the properties (white chips).

< experiment 5-1: preparation of gel-like test composition

7g of carbomer (trade name "carbomer 980", lubrizol Co.) was added to ultrapure water, and the mixture was stirred and mixed with a stirrer to prepare a carbomer solution of 2% by mass. Further, as isomaltooligosaccharides, 30g or 50g of isomaltooligosaccharides-containing saccharide (trade name "gamma", a solid content of 74 mass% or more, 50 mass% or more of isomaltooligosaccharides per solid content, 28 mass% or more of panose, and a raw material of the company, linne) was dissolved in ultrapure water, and mixed with stirring by a stirrer, and a prepared carbomer solution was added thereto as a thickener, and mixed with stirring by a stirrer, and then 3g of potassium hydroxide was added, and mixed with a glass rod, to prepare 3 mass% or 5 mass% isomaltooligosaccharide solution. On the other hand, 60g of a (vinylpyrrolidone/VA) copolymer (trade name "Luviskol VA64P", BASF Japanese Co.) was added to 200g of ethanol as a resin having a hair styling effect, and 4g of phenoxyethanol was further added as a preservative, and dissolved by using a stirrer to prepare a (vinylpyrrolidone/VA) copolymer solution. The respective isomaltooligosaccharide solutions and the (vinylpyrrolidone/VA) copolymer solutions were uniformly mixed with a glass rod to prepare test gels 1 and 2. A gel-like composition was prepared as a control gel in the same manner as in the test gel 1, except that 20g of glycerin and 10g of sorbitol, which have been conventionally used as moisturizers, were used instead of 30g of isomaltooligosaccharide. The compositions of the test gels 1, 2 and the control gel are shown in table 10.

Table 10

	Control gel	Test gel 1	Test subjectGel 2
				Isomalto-oligosaccharide-containing glycoconjugate	—	30g	50g
Ethanol	200g	200g	200g
				(vinylpyrrolidone/VA) copolymers	60g	60g	60g
Glycerol	20g	—	—
				Sorbitol	10g	—	—
Carbomer (carbomer)	7g	7g	7g
				Potassium hydroxide	3g	3g	3g
PhenoxyEthanol	4g	4g	4g
				Ultrapure water	Allowance of	Allowance of	Allowance of
Totalizing	1,000g	1,000g	1,000g

< experiment 5-2: evaluation of touch feeling of Hair coated with gel-like composition containing isomaltooligosaccharide >

Test for evaluating touch feeling was performed on hair coated with the test gel 1, 2 obtained in experiment 5-1 and the control gel.

The feel of the hair was evaluated using the frictional force of the hair coated with each of the test gel and the control gel as an index. The frictional force of the hair was measured using a bench slide type friction measuring machine (trade name "megacamera TL201Ts", trinity-Lab company). Specifically, 20 pieces of hair 5cm, each of which was not coated with gel, were stuck to slides 7.6cm wide and 2.6cm long at 1mm intervals to prepare hair slides, and the hair slides were fixed to a bench slide type friction measuring machine. The tactile contact is put down at the end of the fixed hair, and the tactile contact is made to move at a load of 50g, a speed of 2 mm/sec, a distance of 20mm for 4 times at the surface of the hair with a maximum friction coefficient (mus), an average kinetic friction coefficient (MIU) and a variation of the average kinetic friction coefficient (MMD). Once the tactile tip is removed from the tribometer, the prepared test gel 1, 2 or control gel 5 μl is applied to the central portion of the tactile tip, and the tactile tip is again mounted to the tribometer. Then, the tactile tip was put down at the end of the hair slide, and the tactile tip was moved under the same conditions as those in the measurement of the hair without applying each gel, and the maximum coefficient of friction (μs), the average coefficient of dynamic friction (MIU), and the change in the average coefficient of dynamic friction (MMD) after 0, 1, 3, 5, 7, and 10 minutes were measured. Each gel-like composition was measured 4 times using 4 hair slides.

< experiment 5-3: evaluation result of touch feeling of Hair >

The results of measuring the friction force of hair when applied to the test gels 1 and 2 and the control gel measured in experiment 5-2 were interpreted as the touch evaluation of the 3 items of "hanging", "smoothness" and "tackiness". The "catching" was evaluated using the maximum friction coefficient (μs) indicating the resistance feeling at the moment of starting to feel the hair. That is, a large value of the maximum friction coefficient (μs) indicates a large resistance feeling when the finger starts to move by coating. The "smoothness" was evaluated using an average coefficient of kinetic friction (MIU) as an index indicating the feeling of resistance when a finger was slid on hair. That is, a large value of the average kinetic friction coefficient (MIU) indicates poor finger passability and poor movement. In addition, "tackiness" was evaluated using the change in average dynamic friction coefficient (MMD). The large value of the change in the average dynamic friction coefficient (MMD) indicates that the stick-slip phenomenon in which the finger is repeatedly caught and slipped easily occurs when the finger slips, and the finger becomes tacky. The value (delta value) obtained by subtracting the "measurement value of uncoated hair" from the average value of the maximum coefficient of friction (μs), average coefficient of dynamic friction (MIU), and average coefficient of dynamic friction change (MMD) of the hair coated with the test gel 1, 2 and the control gel was calculated as an index of each evaluation item of touch feeling. The average value and standard deviation of the delta value (Δμs) of the maximum friction coefficient are shown in table 11, the average value and standard deviation of the delta value (Δmiu) of the average dynamic friction coefficient are shown in table 12, and the delta value (Δmmd) of the change of the average dynamic friction coefficient is shown in table 13.

< statistical analysis >)

TABLE 11

* : hairs of p <0.05vs coated control gel

* *: hairs of p <0.01vs coated control gel

As shown in table 11, the friction force of the hair coated with the test gel 1 and 2 containing isomaltooligosaccharides was evaluated, and as a result, it was found that the delta value of the maximum friction coefficient of the hair coated with the control gel prepared in the same manner as the test gel 1 except that the isomaltooligosaccharides contained glycerin and sorbitol was 1.008±0.314 after 5 minutes of coating, and the delta values of the maximum friction coefficients of the hair coated with the test gel 1 and 2 were 0.281±0.212 and 0.157±0.120, respectively, which were significantly smaller than the delta value of the maximum friction coefficient of the hair coated with the control gel. It was also found that after 10 minutes of application, after which the applied gel was completely dry, the delta value of the maximum coefficient of friction of the hair coated with the control gel increased to 0.706±0.109, whereas the delta values of the maximum coefficients of friction of the hair coated with the test gels 1 and 2 were only 0.210±0.176, 0.131±0.029, respectively, which were significantly smaller than the delta value of the maximum coefficient of friction of the hair coated with the control gel. The results indicate that for hair coated with the test gel containing isomaltooligosaccharides, a significantly lower delta value of the maximum friction coefficient was found compared to the hair coated with the control gel, and less "hanging" hair feel was obtained.

TABLE 12

* : hairs of p <0.05vs coated control gel

* *: hairs of p <0.01vs coated control gel

As shown in table 12, it was found that: in contrast to the delta value of the average dynamic friction coefficient of the hair coated with the control gel being 0.279±0.080 after 3 minutes of coating, the delta value of the average dynamic friction coefficient of the hair coated with the test gel 1 was as small as 0.202±0.057 and the delta value of the average dynamic friction coefficient of the hair coated with the test gel 2 was smaller as 0.112±0.026 after 3 minutes of coating. It was also found that the average dynamic friction coefficient of the hair coated with the control gel had a delta value of 0.261.+ -. 0.029 after 5 minutes of application, whereas the average dynamic friction coefficient of the hair coated with the test gel 1 had a delta value as small as 0.156.+ -. 0.100, and the average dynamic friction coefficient of the hair coated with the test gel 2 had a delta value as small as-0.001.+ -. 0.031. Further, it was found that, after 10 minutes of application of the completely dried composition, the average dynamic friction coefficient of the hair coated with the control gel had a Δ value of 0.178±0.117, whereas the average dynamic friction coefficient of the hair coated with the test gel 1 had a Δ value as small as 0.078±0.019, and the average dynamic friction coefficient of the hair coated with the test gel 2 had a Δ value as small as 0.029±0.030. The results indicate that for hair coated with the test gel containing isomaltooligosaccharides, a lower delta value of the average dynamic friction coefficient was found compared to hair coated with the control gel, and a more "smooth" feel was obtained. In particular, in the case of using the test gel 2 containing 5% isomaltooligosaccharides, it was found that the delta value of the average dynamic friction coefficient was particularly significantly reduced, thereby showing that a particularly "smooth" touch could be obtained.

TABLE 13

* : hairs of p <0.05vs coated control gel

* *: hairs of p <0.01vs coated control gel

As shown in table 13, it was found that: the delta value of the change in the average dynamic friction coefficient of the hair coated with the control gel was 0.085±0.038 after 3 minutes of coating, whereas the delta values of the change in the average dynamic friction coefficient of the hair coated with the test gels 1 and 2 were 0.034±0.010, 0.011±0.002, respectively, which were significantly smaller than the change in the average dynamic friction coefficient of the hair coated with the control gel. It was also found that the delta value of the change in the average kinetic friction coefficient of the hair coated with the control gel was 0.081.+ -. 0.047, the delta value of the change in the average kinetic friction coefficient of the hair coated with the test gel 1 was significantly smaller than 0.0094.+ -. 0.005, and the delta value of the change in the average kinetic friction coefficient of the hair coated with the test gel 2 was also smaller than 0.050.+ -. 0.045 after 10 minutes of coating in which the coated composition was completely dried. The results indicate that for hair coated with the test gel containing isomaltooligosaccharides, the delta value of the change in the average dynamic friction coefficient is significantly smaller compared to the hair coated with the control gel, and a less "tacky" feel can be obtained.

As described above, the results in tables 11 to 13 show that the gel-like composition containing isomaltooligosaccharides is useful for not only excellent hair styling ability, but also more excellent touch feeling in hair styling, compared with the gel-like composition containing glycerin and/or sorbitol conventionally used as moisturizers.

< experiment 5-4: evaluation of the Properties of Hair coated with isomaltooligosaccharides-containing gel composition >

Next, the test for evaluating the properties of the hair coated with the test gel 2 and the control gel obtained in the experiment 5-1 was performed. The effect of isomaltooligosaccharides on the white chips after combing was evaluated as a property of hair. The term "white chips" refers to a state where the setting resin incorporated in hair gel or the like is dried and solidified, and is exposed on the hair surface like powder blowing, and conventionally, glycerin, sorbitol, and the like are added as a humectant for suppressing white chips.

< experiment 5-5: preparation of test hair bundles for evaluation of Effect on white chips-

To the hair bundles prepared in experiments 1 to 3, 0.8g of the test gel 2 was dropped, and then applied by hand uniformly on the hair bundles. The hair bundle coated with the test gel 2 was allowed to stand in a constant temperature and humidity chamber (22 ℃ C., relative humidity: 50%) for 1 hour to evaluate the effect of suppressing white dust. In addition, a hair bundle coated with a control gel was prepared in the same manner except that the control gel was coated instead of the test gel 2.

< experiment 5-6: evaluation of white chips >)

The white chips were visually evaluated by using the amount of resin chips contained in the test gel 2, which was peeled off by combing, as an index. Specifically, the hair bundles coated with the test gel 2 prepared in experiments 5 to 5 and the hair bundles coated with the control gel were combed 5 times, and the state of white chips after visual observation and photographing was performed. Fig. 1 is a photograph showing the state of white chips of the hair bundle coated with the control gel after combing, and fig. 2 is a photograph showing the state of white chips of the hair bundle coated with the test gel 2.

As shown in fig. 1 and 2, more white dust was observed in the hair bundle coated with the control gel, whereas little white dust was observed in the hair bundle coated with the test gel 2. The results indicate that isomaltooligosaccharides have a more excellent white dust-suppressing effect than sorbitol or glycerin, which are used as a humectant conventionally for suppressing white dust.

The above results indicate that the gel-like composition containing isomaltooligosaccharides not only can process the shaped hair to have more excellent touch, but also has an effect of suppressing white dust after combing. Therefore, isomaltooligosaccharides can be advantageously used as an excellent styling material for improving the appearance of the hair being styled.

< experiment 6: effect of the ratio of isomaltose to panose on the Care action

In order to investigate the effect of the ratio of isomaltose to panose on the care effect, various test compositions were prepared in the ratio (mass ratio) of isomaltose and panose as isomaltooligosaccharides, and the care effect of damaged hair treated with the test compositions was evaluated.

< experiment 6-1: preparation of the subject compositions

First, test compositions 24 to 30 containing isomaltose and panose as isomaltooligosaccharides in mass ratios of 1:0, 3:1, 1:1, 1:3, 1:10, 1:15, and 0:1, respectively, were prepared. Specifically, an aqueous solution containing 20 mass% of isomaltose and an aqueous solution containing 20 mass% of panose were prepared, and the two solutions were mixed at the mass ratios shown in table 14 to obtain 5 isomaltooligosaccharide mixtures having different mixing ratios of isomaltose and panose. The obtained isomaltooligosaccharide mixture was dissolved in ultrapure water to a final concentration of 5 mass%, and the mixture was uniformly stirred and mixed using a vortex mixer, thereby preparing liquid test compositions 24 to 30. The compositions of the test compositions 24-30 are shown in Table 14.

TABLE 14

< experiment 6-2: preparation of test hair bundles (healthy hair, damaged hair, hair bundles treated with test composition) for determining damage to hair surface

Healthy hair, damaged hair, and hair bundles treated with the test compositions 24 to 30 (hereinafter sometimes referred to as "test composition-treated hair bundles") used in the present experiment were prepared by the following methods, respectively.

[ preparation of healthy Hair ]

A bundle of hair (trade name "Mao Heifa BS-PG", available from Kagaku Kogyo Co., ltd.) having a length of 15cm and a root-aligned bundle of hair 1g was immersed in a 2.7 mass% aqueous solution of sodium lauryl sulfate (an aqueous solution diluted 10 times with ultrapure water, available from Fabricus Kogyo Co., ltd.) and incubated at 25℃for 60 minutes, and then thoroughly washed with running water (tap water), after removing moisture with a paper towel, the bundle of hair was repeatedly rinsed 2 times with ultrapure water, and after removing moisture with a paper towel, the bundle of hair was dried with cold air and dried at a temperature of 22℃and a relative humidity of 50% overnight, and the obtained bundle of hair was used as healthy hair.

[ preparation of damaged Hair ]

A mixed solution of 1.4 mass% aqueous ammonia and 3 mass% aqueous hydrogen peroxide (pH 10.5 to 11.0. Hereinafter referred to as "bleaching solution") was prepared, and the prepared healthy hair was immersed in the bleaching solution and incubated at 30℃for 60 minutes. After incubation, the hair bundles were thoroughly washed with running water (tap water), after removing moisture with a paper towel, the hair bundles were repeatedly washed with ultrapure water for 2 times, after further removing moisture with a paper towel, the hair bundles were dried with cold air, and dried at a temperature of 22 ℃ and a relative humidity of 50% for one night or more. A series of treatments from immersing in a bleaching solution to washing with ultrapure water and drying under a certain environment were repeated 3 times to obtain damaged hair.

[ preparation of hair strands treated with test composition ]

1g of the prepared hair bundle damaged hair was immersed in each of the test compositions prepared in experiment 6-1, incubated at 30℃for 10 minutes, dehydrated with a paper towel, and rinsed with ultra-pure water for 10 seconds. Then, after removing moisture with a paper towel, the hair was dried with cold air, and dried at a temperature of 22 ℃ and a relative humidity of 50% overnight or more, to give hair bundles treated with the test composition.

< experiment 6-3: evaluation of Care action of hair bundles treated with a test composition treated with a liquid test composition containing an isomaltooligosaccharide mixture-

To evaluate the care effect of the test compositions containing isomalto-oligosaccharide mixtures, hair bundles treated with the test compositions obtained in experiment 6-2 were used to evaluate the texture of hair bundles treated with each of the test compositions. In this test, the care effect was evaluated using the feel of the hair bundles (soft, smooth, dry, shiny) when 3 trained panelists touched the hair bundles treated with the test composition with their hands as an indicator.

The evaluation was performed for 4 items of "softness", "smoothness", "dry feel" and "gloss". The term "softness" refers to the degree of softness that allows hair to be bent without hardening upon contact with hair, and in this test, the degree of softness that allows hair to be bent without hardening upon contact with hair is evaluated based on damaged hair that has not been treated with the test composition. "smoothness" refers to the lack of resistance to hair contact, and in this test, the extent of easy sliding upon hair contact is evaluated based on damaged hair that has not been treated with the test composition. The "dry feel" means that the hair was not entangled and opened when contacted with the hair, and in this test, the passing of the finger when contacted with the hair was evaluated on the basis of damaged hair which was not treated with the test composition. Regarding "shine", the degree of shine seen when hair bundles were aligned was visually assessed based on damaged hair that was not treated with the test composition.

For each item of evaluation, the damaged hair, compared to the damaged hair not treated with the test composition, was scored on the basis of 3 evaluation scores based on the following criteria: 2: improvement, 1: slightly improved, 0: no change occurs. The average value is calculated by dividing the sum of the scoring values of the panelists by the number of panelists, and the judgment is made: 1 min or more: the material is excellent; 0.5 or more and less than 1: o (circle); 0 or more and less than 0.5: delta; 0: and x. The results obtained are shown in Table 15 together with the average value of the area ratio calculated in experiment 6-3.

TABLE 15

As shown in table 15, "softness" was good when the mass ratio of isomaltose to panose was 1:3 to 1:10 (judged as "Ji" or "good"), smoothness "was significantly good when the mass ratio of isomaltose to panose was 3:1 to 1:10 (judged as" Ji "), dryness" was significantly good when the mass ratio of isomaltose to panose was 1:1 to 1:10 (judged as "good"), and gloss "was good when the mass ratio of isomaltose to panose was 1:1 to 1:10 (judged as" Ji "or" good "). The results indicate that when the mass ratio of isomaltose to panose is 1:1 to 1:10, particularly when the mass ratio of isomaltose to panose is 1:3 to 1:10, an excellent care effect is exerted, and a good texture is imparted to hair.

< experiment 6-4: determination of damage to the hair surface

To further investigate the effect of the combination of isomaltose and panose on the care effect from one side, the effect of damage to the hair surface was confirmed for the test compositions 24, 27 and 30 containing isomaltose and panose in a mass ratio of 1:0, 1:3, 0:1, respectively.

A test was performed to evaluate damage to the hair surface using the fluorescence intensity of rhodamine B (sold by Fuji film and Wako pure chemical industries, ltd.) as a cationic fluorescent reagent as an index. The rhodamine B staining method is a method for evaluating damage to the hair surface, using the adsorption distribution of the cationic fluorescent reagent rhodamine B to the hair surface where the anionic functional groups are exposed due to damage such as injury as an index. Healthy hair, damaged hair, hair bundles treated with test composition 24, test composition 27 or test composition 30 (hereinafter sometimes referred to as "test composition treated hair bundles") prepared in experiment 6-2 were immersed in a 0.05% rhodamine B aqueous solution for 3 minutes, washed 3 times with ultrapure water, and then, moisture was removed with a paper towel, followed by sufficient drying. Then, 20 hairs taken out of each of the healthy hair, damaged hair, and hair bundles treated with the test composition were stuck on a glass slide with a double-sided tape, and the exposure time was set to 10 milliseconds by a fluorescence microscope (product name "BX53", sold by olympus corporation) (excitation wavelength: 530 to 550nm, fluorescence wavelength: 575nm or more) to take an image. Using image analysis software (product name "cel sens", sold by olympus corporation), a ratio of the area of the hair whose fluorescence intensity showed 200 or more to the area of the entire hair photographed (hereinafter, simply referred to as "area ratio") was calculated and used as an index of damage to the hair surface. The damage to the hair surface was measured using 20 hairs taken out of each of healthy hair, damaged hair, and hair bundles treated with the test composition. The average and standard deviation of the area ratios calculated for healthy hair, damaged hair, hair bundles treated with the test compositions, respectively, are shown in table 16.

TABLE 16

As shown in Table 16, the area ratio of healthy hair was 0.+ -. 0.0%, while the area ratio of damaged hair was 81.5.+ -. 19.1%, and the area ratio of damaged hair was increased, that is, the hair surface was damaged. In contrast, the area ratio of the hair bundles of the damaged hair treated with the test composition 24 containing only isomaltose as isomaltooligosaccharide was 87.5±16.6%, and the same degree of damage as that of the damaged hair was exhibited. On the other hand, the area ratio of the hair bundles treated with the test composition 30 containing only panose as isomaltooligosaccharide was 61.8±19.1%, and a decrease in the area ratio was observed as compared with damaged hair. In addition, the area ratio of hair bundles treated with the test composition 27 having a mass ratio of isomaltose to panose of 1:3 was 41.3.+ -. 30.7%, and a particularly significant reduction in area ratio was observed compared to damaged hair. The results indicate that when isomaltooligosaccharides are used in combination with isomaltooligosaccharides and Pan Tangshi, particularly excellent care effects can be obtained from the viewpoint of damaging the hair surface.

As described above, the results in Table 15 and Table 16 show that isomaltooligosaccharides can not only enhance hair styling ability, but also serve as a care ingredient for protecting hair. When two isomaltooligosaccharides, i.e., isomaltose and panose, are used in combination, a particularly remarkable effect of nursing is observed, and when the mass ratio of isomaltose to panose is 1:1 to 1:10, particularly 1:3 to 1:10, the effect of excellent nursing is exhibited particularly remarkably.

< experiment 7: effect of isomaltooligosaccharide content on the Care action and feel of use of Hair Care composition)

As isomaltooligosaccharides, the ratio (mass ratio) of isomaltooligosaccharides to panose was fixed, and hair care compositions having different amounts of isomaltooligosaccharides alone in the compositions were prepared, and the compositions were evaluated for the feel of use and the care effect during the period from application to rinsing and drying of the hair.

Experiment 7-1: preparation of the emulsion composition to be tested

45g of ultrapure water was placed in a beaker, heated to 80℃with a hot water bath, and 0.68g of citric acid (trade name "refined citric acid (anhydrous) M", hibiscus chemical Co., ltd.) was added while stirring, and 1.2g of stearamidopropyl dimethylamine (trade name "hong Koch MPAS", toho chemical Co., ltd.) was further added to dissolve it completely. Then, the solution was cooled to 70℃and 1.84g of cetyl alcohol (trade name "cetyl alcohol", higher alcohol Industrial Co., ltd.) and 2.96g of stearyl alcohol (trade name "deodorant stearyl alcohol", higher alcohol Co., ltd.) were added, followed by stirring for 30 minutes, cooling to 65℃and stirring for 30 minutes again, to emulsify and thicken the mixture. Then, while stirring the solution, 0.4g of phenoxyethanol (trade name "3's solution EPH", toho chemical industry Co., ltd.) was added, and further, 0.13, 0.67, 1.33, 6.77, 13.33, 26.67, 33.33, 40.00g of isomaltooligosaccharide-containing saccharides (trade name "gamma", registered trademark) "were added as isomaltooligosaccharides, respectively, with a solid content of 74 mass% or more, an isomaltooligosaccharide content per solid content of 50 mass% or more, a panose content of 28 mass% or more, and a product of Proprietary were prepared as isomaltooligosaccharides. An emulsion composition prepared by the same method except that ultrapure water was used instead of isomalto-oligosaccharide-containing saccharide was used as a control emulsion composition. The compositions of the test emulsion compositions 1 to 8 and the control emulsion composition are shown in Table 17.

TABLE 17

< experiment 7-2: evaluation of sensation of use and Care action

The test emulsion compositions 1 to 8 and the control emulsion composition prepared in experiment 7-1 were applied to damaged hair prepared in experiment 6-2, and then washed with tap water, the applied emulsion composition was rinsed off, and dried with a towel, and the feel of use and the care effect were evaluated until four processes of "in coating", "in washing", "after towel drying" and "after drying" were dried. The feel of use and care effect was evaluated by touching hair bundles with the hands of 3 trained panelists.

The specific steps are as follows. First, 4g of damaged hair prepared in experiment 6-2 was coated with 1mL of an aqueous sodium lauryl sulfate solution (an aqueous solution of 10-fold diluted with ultrapure water under the trade name "d. E-27C", from king corporation), and shampooed for 30 seconds after foaming. Then, after washing with running water (tap water) for 30 seconds, the test emulsion compositions 1 to 8 prepared in experiment 7-1 were applied from the root of damaged hair to the tip of hair, and the extension of each test emulsion composition to hair at this time was evaluated as an index of the sense of use, and was evaluated as "in-coating". Thereafter, the hair was rinsed with running water (tap water) for 30 seconds, and the finger passing property of the damaged hair at this time was evaluated as an index of the feeling of use, and the smoothness was evaluated as an index of the nursing action, and this was evaluated as "rinsing". The damaged hair was dried with a towel, and the wet degree, smoothness and dryness of the damaged hair after 2 minutes of air drying with a blower were evaluated as the indexes of the care effect, and the result was evaluated as "after towel drying". Then, wet cleaning, softness, smoothness, dry feel and gloss of damaged hair after the damaged hair is left for 2 to 3 hours at a temperature of 22 to 26 ℃ and a relative humidity of 50 to 60% were evaluated as indicators of the caring effect, and the wet cleaning, softness, smoothness, dry feel and gloss were evaluated as "after drying".

The term "spreading to hair" in the application means the good property of spreading of the emulsion composition when applied to hair, and in this test, the good property of spreading of the emulsion composition when each emulsion composition is applied to hair was evaluated based on the case where the control emulsion composition is applied to damaged hair. The "finger passing property" of "during washing" means the degree of entanglement of hair at the time of washing hair, and in this test, the degree of entanglement of hair at the time of washing hair was evaluated on the basis of damaged hair to which the control emulsion composition was applied. In addition, "smoothness during washing" means no feeling of resistance during hair washing, and in this test, the degree of easy slipping of hair during hair washing was evaluated based on damaged hair to which the control emulsion composition was applied. The "wetness after towel drying" refers to the moisturized feel upon contact with hair, and in this test, the moisturized feel upon contact with hair was evaluated based on damaged hair to which the control emulsion composition was applied. In addition, "smoothness" after "towel drying" means no feeling of resistance upon contact with hair, and in this test, the degree of easy sliding of hair upon contact with hair was evaluated based on damaged hair to which the control emulsion composition was applied. The "dry feel" after towel drying refers to the ease of untwisting of the hair which is untwisted when the hair is contacted, and in this test, the passing of fingers when the hair is contacted is evaluated based on damaged hair to which the control emulsion composition is applied. The "wetness after drying" refers to the moisturizing sensation upon contact with hair, and in this test, the moisturizing sensation upon contact with hair was evaluated based on damaged hair to which the control emulsion composition was applied. The "softness after drying" refers to softness capable of bending hair without hardening upon contact with hair, and in this test, the degree of softness capable of bending hair without hardening upon contact with hair was evaluated based on damaged hair to which the control emulsion composition was applied. The "smoothness" after drying "means that there is no feeling of resistance when the hair is contacted, and in this test, the degree of easy sliding of the hair when the hair is contacted is evaluated based on damaged hair to which the control emulsion composition is applied. The "dry feel" after drying refers to the ease of untwisting of the hair without twisting the hair when the hair is contacted, and in this test, the passing of fingers when the hair is contacted was evaluated based on damaged hair to which the control emulsion composition was applied. Regarding the "gloss" after "drying, in this test, the degree of gloss seen when hair bundles were aligned was visually evaluated based on damaged hair to which the control emulsified composition was applied.

For each item of evaluation, scores were given on 9 grades based on the following criteria, compared to damaged hair coated with the control emulsified composition: 4: very good, 3: good, 2: slightly better, 1: good in any way, 0: no change, -1: not good anyway, -2: slightly worse, -3: difference, -4: very poor. The average score was calculated by dividing the total of the score values of the panelists by the number of panelists, and was determined as: more than 2 minutes and below 4 minutes: the material is excellent; more than 0 minutes and less than 2 minutes: o (circle); above-2 minutes and below 0 minutes: delta; -2 minutes as follows: and x. The results obtained are shown in Table 18.

The test emulsified compositions 1 to 8 prepared by various changes in the final concentration of isomaltooligosaccharides in the test emulsified composition in the range of 0.1 to 30 mass% were applied to damaged hair using an isomaltooligosaccharide mixture prepared by mixing isomaltooligosaccharide and panose in a mass ratio of 1:3, and as a result, the evaluation in each of the processes of "during application", "during cleaning", "after towel drying" and "after drying" was the following results.

[ during coating ]

During the coating process, "spreading to hair" was evaluated as an index of the feel of use. When the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.1 to 25 mass%, the "diffusion into hair" was good (judged as ". Smallcircle" or ". Very good"), and when the final concentration of isomaltooligosaccharides was 10 mass%, the "diffusion into hair" was significantly good (judged as ". Very good").

[ during cleaning ]

In the cleaning process, "finger passing property" was evaluated as an index of feeling of use, and "smoothness" was evaluated as an index of nursing action. As an index of the feeling of use, the "finger passing property" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 30 mass% (judged as ". Smallcircle"). On the other hand, as an index of the nursing effect, "smoothness" was good when the final concentration of isomaltooligosaccharides in the tested emulsified composition was 0.1 to 30 mass% (judged as "good" or "good"), and significantly good when the final concentration of isomaltooligosaccharides was 5 to 20 mass% (judged as "good").

[ after towel drying ]

After being wiped dry by a towel, the wet degree, smoothness and dry feel are evaluated as indexes of nursing effect. The "wettability" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 30 mass% (judged as "good" or "good"), and was significantly good when the final concentration of isomaltooligosaccharides was 20 mass% (judged as "good"). The "smoothness" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.1 to 30 mass% (judged as "good"). The "dry feel" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 30 mass% (judged as "good" or "good"), and was significantly good when the final concentration of isomaltooligosaccharides was 5 to 10 mass% (judged as "good" or "good").

[ after drying ]

After drying, as an index of the nursing effect, "wettability", "softness", "smoothness", "dry feel" and "gloss" were evaluated. The "wettability" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 30 mass% (judged as "good"). The "softness" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 25 mass% (judged as "good"). The "smoothness" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.5 to 25 mass% (judged as "good" or "good"), and was significantly good when the final concentration of isomaltooligosaccharides was 5 to 10 mass% (judged as "good"), respectively. The "dry feel" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 0.1 to 25 mass% (judged as "good"). The "gloss" was good when the final concentration of isomaltooligosaccharides in the emulsified composition under test was 1 to 30 mass% (judged as "good").

[ comprehensive determination ]

As a comprehensive judgment, the final concentration of isomaltooligosaccharides was good (judged as "O") at 0.1 to 30 mass%.

The above results indicate that when isomaltooligosaccharides are contained as the active ingredient, a hair care composition exhibiting excellent feel in use and care effect can be obtained when isomaltooligosaccharides are used in the range of 0.1 to 30% by mass of the final concentration, and a hair care composition exhibiting particularly excellent feel in use and care effect can be obtained when isomaltooligosaccharides are used in the range of 1 to 25% by weight of the final concentration, particularly 5 to 20% by weight, relative to the total mass of the hair care composition.

< experiment 8: effect of isomaltooligosaccharides on damage to Hair

In order to evaluate the effect of isomaltooligosaccharides on hair damage, a bending stiffness test for evaluating the softness of damaged hair treated with a solution containing isomaltooligosaccharides and a hair tensile property test for evaluating the tensile strength of hair were performed. As isomaltooligosaccharides, isomaltooligosaccharides-containing saccharides (trade name "pen"), in which the content of isomaltooligosaccharides per solid content was 50 mass% or more and the content of panose was 28 mass% or more, were used for the test.

< experiment 8-1: preparation of test hair bundles (healthy hair, damaged hair, hair bundles treated with test sample, hair bundles treated with control sample) for measuring bending stiffness of hair >

Healthy hair, damaged hair, hair bundles treated with the test sample, and hair bundles treated with the control sample used in this experiment were prepared by the following methods, respectively.

[ preparation of healthy Hair ]

A bundle of hair (trade name "Mao Heifa BS-PS", available from Kagaku Kogyo Co., ltd.) having a length of 20cm and 1g of the bundle of hair aligned with the root was washed with 0.5 mass% aqueous sodium lauryl sulfate (an aqueous solution obtained by diluting (trade name "Efagaku E-27C", available from Kagaku Kogyo Co., ltd.) with ultrapure water 3 times, and the bundle of hair thus obtained was used as healthy hair.

[ preparation of damaged Hair ]

The prepared healthy hair was washed with 0.5 mass% aqueous sodium lauryl sulfate (3-fold diluted aqueous solution of ultrapure water (trade name "d. Makino E-27C", king corporation)) for 3 minutes, washed with running water (tap water) for 30 seconds, dried with a towel, immersed in a bleaching solution (aqueous solution obtained by mixing equal amounts of hydrogen peroxide 4.0 mass% aqueous solution and ammonia 2.5 mass% aqueous solution) for 30 minutes, then thoroughly washed with tap water, and dried with a towel. Then, the hair bundle was immersed in permanent wave agent No. 1 (an aqueous solution obtained by mixing 50% ammonium thioglycolate solution at 13.0 mass%, 28% ammonia solution at 3.0 mass%, and 84.0 mass% ultrapure water) for 15 minutes, then thoroughly washed with warm tap water, dried with a towel, immersed in permanent wave agent No. 2 (a 6.0 mass% aqueous solution of sodium bromate) for 15 minutes, then thoroughly washed with warm tap water, and dried with a towel. Thereafter, an ultrasonic washer (trade name "eukon 1510", komartie science) for spraying ultrapure water was used, and after washing with 42kHz for 10 minutes, the solution was dried with a towel. Healthy hair was repeatedly subjected to a series of treatments ranging from the above washing with 0.5 mass% aqueous sodium lauryl sulfate solution to the washing with an ultrasonic washer to the towel drying, washed with ultrapure water, and then naturally dried, and the hair bundle thus obtained was used as damaged hair.

[ preparation of hair bundles treated with sample to be tested and hair bundles treated with control sample ]

100g of the prepared hair bundle having damaged hair was immersed in a 5 mass% aqueous solution of isomaltooligosaccharide-containing sugar (trade name "Seawamori" (registered trademark), made by Seisakusho, inc.) for 10 minutes, washed with ultrapure water for 10 seconds, naturally dried, and the hair bundle was left for 3 hours at a temperature of 20.+ -. 5 ℃ and a relative humidity of 64.+ -. 10%, whereby the hair bundle thus obtained was used as a hair bundle treated with a test sample. In addition, as a control, a hair bundle was prepared by the same method as that of a hair bundle treated with a sample, except that a conventional 5 mass% aqueous solution of sorbitol (trade name "sorbitol flower king", huawang corporation) for moisturizing and caring hair was used instead of the 5 mass% aqueous solution of isomaltooligosaccharide (trade name "nape"), which was used in the trade, and the hair bundle was treated with a control sample.

< experiment 8-2: determination of bending hardness >

The softness of hair was evaluated by using the bending stiffness of the hair bundle coated with the test sample as an index. The bending hardness of the hair bundle was measured using a bending tester (trade name "KES-FB2-S-DC", kogyo Co., ltd.). Specifically, the roots of 50 hairs collected from the hair bundle treated with the sample, the hair bundle treated with the control sample, the healthy hair and the damaged hair were aligned and arranged within a width of 5cm, both ends were attached to a backing paper at 1cm intervals, the sensitivity was set to 20g at full scale in a room having a temperature of 23.0 to 23.6 ℃ and a relative humidity of 49 to 53%, and the bending curvature was set to 1.0cm ^-1 The bending hardness of the tester when bending the hair bundle was measured as the softness of the hairAnd (5) an index. The bending stiffness of the hair bundle treated with the test sample, the hair bundle treated with the control sample, healthy hair and damaged hair was measured 3 times in total using 3 hair bundles prepared in the same manner. The average and standard deviation of the bending stiffness of the hair bundles measured for healthy hair, damaged hair, hair bundles treated with the test sample, and hair bundles treated with the control sample are shown in table 19.

< statistical analysis >)

TABLE 19

* *: p <0.01vs damaged hair

As shown in Table 19, the bending stiffness (B value) of healthy hair was 0.146.+ -. 0.001 (gf cm) ² In contrast, the bending stiffness (B value) of the damaged hair was 0.171.+ -. 0.002 (gf cm) ² Cm), indicating an increased bending stiffness of the damaged hair. On the other hand, the bending stiffness of the hair bundle treated with the control sample, which was treated with the aqueous solution containing sorbitol conventionally used for the purpose of moisturizing and caring hair, was 0.169.+ -. 0.002 (gf cm) ² Per cm), the bending stiffness of the hair strand treated with the sample to be treated, which was treated with the aqueous solution containing isomaltooligosaccharide, was 0.154.+ -. 0.001 (gf cm) ² Per cm) is significantly smaller than the bending stiffness of damaged hair. The results show that isomaltooligosaccharides have an effect of reducing and softening the hardness of damaged and hardened hair, which exceeds sorbitol used for the purpose of moisturizing and caring hair in the past.

< experiment 8-3: preparation of test hair bundles (healthy hair, damaged hair, hair bundles treated with test sample, hair bundles treated with control sample) for measuring tensile Strength of Hair >

Healthy hair, damaged hair, hair bundles treated with the test sample, and hair bundles treated with the control sample used in this experiment were each prepared by the following methods.

[ healthy Hair ]

7g of hair bundles (trade name "Mao Heifa BS-PS", available from Kagaku Kogyo Co., ltd.) having a length of 30cm and aligned with the root of the back were immersed in 1 mass% aqueous sodium lauryl sulfate solution (3-fold diluted with ultrapure water, available from Fabricius Kogyo Co., ltd.) for 1 minute, followed by washing with tap water for 1 minute, absorbing moisture with waste paper, and drying with a hair dryer, whereby the hair bundles thus obtained were used as healthy hair.

[ damaged Hair ]

The prepared healthy hair was immersed in a bleaching solution (an aqueous solution obtained by mixing an aqueous solution of hydrogen peroxide 3.0 mass% and an aqueous solution of ammonia 3 mass%) for 20 minutes, then rinsed with tap water for 1 minute, sucked with waste paper, and dried with a blower. The series of treatments from immersing in the above bleaching liquid to drying with a blower was repeated 3 times for healthy hair, and the hair bundle thus obtained was used as damaged hair.

[ Hair Strand treated with sample to be tested and hair Strand treated with control sample ]

100g of a hair bundle having damaged hair was immersed in a 5 mass% aqueous solution of isomaltooligosaccharide-containing sugar (trade name "pot trademark", available from Corp., inc.) for 10 minutes, washed with ultrapure water for 10 seconds, then, moisture was sucked with waste paper, and dried with a blower, whereby the hair bundle thus obtained was used as a hair bundle treated with a test sample. As a control, a hair bundle was prepared by the same method as that of a hair bundle treated with a sample, except that a 5 mass% aqueous solution of sorbitol (trade name "sorbitol flower king", queen corporation) conventionally used for moisturizing and nursing purposes of hair was used instead of a 5 mass% aqueous solution of isomaltooligosaccharide (trade name "nape"), and a hair bundle treated with a control sample was used.

< experiment 8-4: determination of tensile Strength of Hair

The tensile strength of the hair was evaluated by using the load applied before the hair treated with the test sample was stretched and broken as an index. The load was measured using an automatic plotter (Shimadzu corporation). Specifically, the root side of each of 1 hair of a hair bundle treated with a sample, a hair bundle treated with a control sample, healthy hair, and damaged hair, which was conditioned at room temperature (20±5 ℃ and a relative humidity of 64±10%) for 24 hours or more, was fixed to an upper chuck of an automatic plotter, deflection was obtained by using a weight of 0.005N, the tip side of the hair was fixed to a lower chuck, and the hair was pulled at a speed of 60 mm/min, and the load at break was measured as an index of the tensile strength of the hair. The load was measured 5 times for each hair bundle using 5 hairs taken out of each hair bundle of healthy hair, damaged hair, hair bundles treated with the test sample, and hair bundles treated with the control sample. The average and standard deviation of the load at the time of hair breakage, which were measured for each of healthy hair, damaged hair, hair bundles treated with the test sample, and hair bundles treated with the control sample, are shown in table 20.

< statistical analysis >)

TABLE 20

	Load (N)
		Healthy hair	0.915±0.029
Damaged hair	0.876±0.056
		Hair bundle treated with test sample	1.065±0.070 ^**
Hair bundle treated with control sample	0.942±0.154

* *: p <0.01vs damaged hair

As shown in Table 20, the tensile load at break of the healthy hair was 0.915.+ -. 0.029N, and the tensile load at break of the damaged hair was 0.876.+ -. 0.056N, which showed a decrease in the breaking strength of the damaged hair, i.e., the hair was brittle. In contrast, the tensile breaking load of the hair strand treated with the control sample, in which the damaged hair was treated with the aqueous solution containing sorbitol, was 0.942.+ -. 0.154N, and the breaking strength was found to be increased compared to the damaged hair, but there was no significant difference (p >0.05vs damaged hair). On the other hand, when the hair bundle treated with the test sample for hair damage was treated with an aqueous solution containing isomaltooligosaccharide, the load at the time of tensile breaking was 1.065.+ -. 0.070N, and it was found that the breaking strength was significantly increased as compared with the damaged hair. The results indicate that isomaltooligosaccharides have an effect of improving the strength of damaged and brittle hair, which exceeds sorbitol, which has been used for the purpose of moisturizing and caring hair. It is suggested that the isomalto-oligosaccharide-containing composition has an effect of inhibiting hair bifurcation and hair breakage caused by hair damage.

The above results indicate that isomaltooligosaccharides not only enhance the styling power of hair by being applied to the hair, but also have the nursing effect of improving the softness and strength of the hair after washing and protecting the hair.

< experiment 9: effect of isomaltooligosaccharides on protein denaturation by surfactant

In order to examine the effect of the surfactant on protein denaturation and the effect of blending isomaltooligosaccharides, experiments were performed which were evaluated using the zein dissolution rate as an index of insoluble proteins. The zein test is a method for evaluating skin roughness using the denaturation of zein (the dissolution rate of zein) as an insoluble protein by a surfactant as an index.

< experiment 9-1: preparation of test sample and control sample

[ preparation of SDS solution to be tested ]

As isomaltooligosaccharides, isomaltooligosaccharides-containing saccharides (trade name: cray (registered trademark), solid content: 75%, from the company, linn) were used, 10g of ultrapure water was added to 13.3g of isomaltooligosaccharides-containing saccharides, and the mixture was uniformly mixed with a stirrer to obtain an isomaltooligosaccharide solution. To the obtained isomaltooligosaccharide solution was added 5g of 10 mass% sodium lauryl sulfate aqueous solution (an aqueous solution of 3-fold diluted with ultrapure water (trade name "d. O10", kao corporation)), and the total amount of ultrapure water was added 50g, followed by stirring for 15 minutes to obtain a test sodium lauryl sulfate solution having isomaltooligosaccharide (hereinafter referred to as "test SDS solution"). The content of isomaltooligosaccharides in the SDS solution to be tested was 20% by mass, and the content of sodium lauryl sulfate was 1% by mass.

[ preparation of control SDS solution ]

On the other hand, 45g of ultrapure water and 5g of a 10 mass% aqueous solution of sodium lauryl sulfate (aqueous solution of 3-fold diluted with ultrapure water, trade name "d. Of Kao corporation) were mixed to obtain a control sodium lauryl sulfate solution (hereinafter referred to as" control SDS solution "). The content of sodium lauryl sulfate in the control SDS solution was 1% by mass, which was the same as that in the test SDS solution.

< experiment 9-2: determination of the dissolution Rate of zein

First, the weight of the stirrer added to the beaker for measurement ("the weight of the beaker with stirrer added"), the weight of the filter paper, and the weight of the weighing dish were weighed, respectively. Next, 2g of zein (trade name "zein", fuji film and Wako pure chemical industries, ltd.) was precisely weighed in a weighing dish, and added to 50g of the test SDS solution or the control SDS solution while stirring, and the mixture was stirred for 60 minutes or longer, and after standing for 5 minutes or more, suction filtration was performed with a buchner funnel covered with filter paper (trade name "doctor filter paper No.541 7cm phi", doctor company). The filter paper and the stirrer used for stirring were placed in a beaker washed with water, and dried in an incubator at 45℃for 24 hours. The weight of the beaker with filter paper and stirrer added ("weight of beaker with filter paper and stirrer added after 24 hours of drying") and the weight of the weighing dish with zein added ("weight of weighing dish with zein added") were weighed respectively. As the amount of zein charged, "(weight of weighing dish) + (2 g of zein) - (weight of weighing dish after charging zein)", as the amount of zein remaining, "(weight of beaker with filter paper and stirrer added after 24 hours of drying) - (weight of beaker with stirrer added) - (weight of filter paper)", the dissolution rate of zein was calculated using the following formula 1. The test SDS solution and the control SDS solution were each prepared 3 independently, and each solution was subjected to 3 determinations of zein dissolution rate. The average and standard deviation of the zein dissolution rates thus obtained are shown in table 21.

1 (1)

[ number 1]

Zein dissolution rate (%) = [ (zein input amount) - (zein residual amount) ]/(zein input amount) ×100

< statistical analysis >)

The measured values are expressed as "mean ± Standard Deviation (SD)". Statistical analysis a non-corresponding t-test was performed. As the significance level (p-value), less than 0.05 (risk less than 5%) was judged to be a significant difference.

Table 21

	Zein dissolution rate (%)
		Control SDS solution	91.34±0.66
SDS solutions tested	78.64±1.51 ^**

* *: p <0.01vs control SDS solution

As shown in Table 21, the measured zein dissolution rate was 91.34.+ -. 0.66% for the control SDS solution containing no isomaltooligosaccharide, whereas the measured zein dissolution rate was 78.64.+ -. 1.51% for the test SDS solution containing isomaltooligosaccharide, indicating a significant decrease in zein dissolution rate compared to the control SDS solution. The results suggest that isomaltooligosaccharides can be used to inhibit roughness of the skin caused by surfactants and to prevent roughness of the basal skin such as the scalp.

Examples

The present invention will be described in more detail with reference to the following examples. That is, examples of the hair styling force enhancers are specifically described in examples 1 to 5, and examples of the hair styling compositions containing the hair styling force enhancers are specifically described in examples 6 to 19. The present invention is not limited to these examples.

Example 1

< Hair styling force enhancer >)

The isomaltooligosaccharide-containing saccharide solution prepared in experiment 1-1 was spray-dried by conventional methods to prepare isomaltooligosaccharide-containing saccharide powder. The product can be used as hair styling force enhancer of hair styling composition.

Example 2

A sugar solution containing isomaltooligosaccharides was prepared according to the method described in example 1 of JP-A-4-360663. Specifically, a syrup (trade name: cartridge, available from Kagaku Kogyo Co., ltd.) having a high maltose content was prepared to a concentration of 35% by mass, 300 units/g of a substrate of Aspergillus niger-derived transglucosidase (Tianye, available from Tianye Co., ltd.) was added thereto, and the mixture was reacted at a temperature of 55℃for 24 hours at pH5.5, followed by heat inactivation. Filtering the liquid according to conventional method, decolorizing, desalting with ion exchange resin (H type and OH type), refining, and concentrating to obtain sugar solution containing isomaltooligosaccharide. As a result of analysis by a conventional method, the composition of the liquid was 24.3% by mass of glucose, 14.2% by mass of maltose, 10.5% by mass of isomaltose, 0% by mass of maltotriose, 33.8% by mass of panose, 0.6% by mass of isomaltotriose, and 15.6% by mass of polymer sugars including tetraose or more per solid component. The product can be used as hair styling force enhancer of hair styling composition.

Example 3

< Hair styling force enhancer >)

The isomalto-oligosaccharide-containing saccharide solution prepared by the method of experiment 1-1 was spray-dried by a conventional method to prepare an isomalto-oligosaccharide-containing amorphous powder. The product can be used as hair styling force enhancer of hair styling composition.

Example 4

A sugar solution containing isomaltooligosaccharides was prepared according to the method described in example 2 of Japanese patent application laid-open No. 4-360663. That is, corn starch was used as a raw material, and liquefied by a conventional method to obtain a liquefied liquid having a concentration of 35% and a Dextrose Equivalent (DE) of 12. To this, 6.4 units of soybean-derived beta-amylase (Daiko Kagaku Co., ltd.) and 300 units of Aspergillus niger-derived transglucosidase (Tianye Co., ltd.) were added per 1g of starch solid content, and the mixture was reacted at pH5.5 and a temperature of 55℃for 12 hours, followed by heat inactivation. Filtering the liquid according to conventional method, decolorizing, desalting with ion exchange resin (H type and OH type), refining, and concentrating to obtain sugar solution containing isomaltooligosaccharide. As a result of analysis by a conventional method, the composition of the liquid was 14.4% by mass of glucose, 10.7% by mass of maltose, 7.1% by mass of isomaltose, 2.0% by mass of maltotriose, 21.3% by mass of panose, 0% by mass of isomaltotriose, and 43.5% by mass of polymer sugars including tetraose and more per solid component. The product can be used as hair styling force enhancer of hair styling composition.

Example 5

< Hair styling force enhancer >)

The isomalto-oligosaccharide-containing saccharide solution prepared by the method of example 4 was spray-dried by conventional methods to prepare an isomalto-oligosaccharide-containing amorphous powder. The product can be used as hair styling force enhancer of hair styling composition.

Example 6

< styling liquid >)

The components are stirred and dissolved by a conventional method to prepare the shaping liquid. The product has excellent hair setting and finishing ability, and when used for hair, has excellent hair dryness, no stickiness, white dust inhibition (flashing), use feeling and appearance (finish), and good softness, luster, neatness, comb-pass property, and hair bifurcation and hair breakage inhibition.

Example 7

< styling liquid >)

Purified water was added thereto to prepare 100 parts by mass.

The components are stirred and dissolved by a conventional method to prepare the shaping liquid. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 8

< Hair gel >)

Purified water was added thereto to prepare 100 parts by mass.

The above ingredients were dissolved by stirring by a conventional method to prepare a hair gel. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 9

< Hair gel >)

Example 10

< hairdressing liquid >)

The above components are dissolved by stirring by conventional method to prepare the hair-caring liquid. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 11

< Hair care solution >)

The above components were dissolved by stirring by a conventional method to prepare a care solution. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 12

< hair cream >)

< oil phase >

< Water phase >

Mixing the above oil phase components, heating to dissolve and adjust to 80deg.C, heating to dissolve the water phase components and adjust to 80deg.C, adding under stirring, and emulsifying with homogenizer. After cooling, the mixture was adjusted to 30℃and then 0.05 parts by mass of sodium hydroxide was added thereto and stirred until uniform. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 13

< hairdressing foam >)

90 parts by mass of a solution obtained by stirring and dissolving these components by a conventional method was charged into a filling tank, and 10 parts by mass of liquefied petroleum gas was filled after installing a valve. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 14

< hairdressing foam >)

90 parts by mass of a solution obtained by mixing and stirring these components by a conventional method was charged into a filling tank, and 10 parts by mass of liquefied petroleum gas was filled after installing a valve. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 15

< hairdressing spray >)

The solution was filled into a filling tank by a conventional method, and after installing a valve, an equal amount of dimethyl ether was filled. The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 16

< Hair dye >)

The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition.

Example 17

< Hair dye >)

< agent No. 1 >

< number 2 agent >

The product has excellent hair styling and hair styling force, and when used for hair, has advantages of dry hair, no stickiness, white dust inhibition, excellent feeling in use and appearance, and good softness, luster, neatness, comb-pass, and hair bifurcation and hair breakage inhibition. In addition, the product can be arbitrarily produced into tea-green-based, tea-purplish-red-based, blue-violet-based, tea-based, violet-blue-violet-based hair dyes by changing the ratio of p-phenylenediamine to resorcinol or by using m-aminophenol, p-phenylenediamine, m-phenylenediamine or a derivative thereof as a coupling agent instead of resorcinol.

Example 18

< permanent wave agent >

< agent No. 1 >

< number 2 agent >

Example 19

< Hair-growing agent >)

Industrial applicability

The hair styling force enhancer of the present invention is excellent in hair styling force enhancing action and hair styling force, and therefore can be suitably blended into a hair styling composition to provide a hair styling composition capable of maintaining a hairstyle. The hair styling composition of the present invention has a smooth and non-sticky feel in use, is less likely to cause white dust (marking), imparts excellent appearance, and is capable of softening and styling hair, improving comb-through performance, and suppressing hair bifurcation and hair breakage. The present invention has such remarkable effects, and contributes to a very large and significant industrial contribution.

Claims

1. A hair styling force enhancer contains isomaltooligosaccharides as an active ingredient.

2. The hair styling force enhancer of claim 1, wherein the isomaltooligosaccharide is any 1 or 2 or more selected from the group consisting of isomaltose, panose, isomaltotriose, isomaltpentaose and isomaltohexaose.

3. The hair styling power enhancer according to claim 1 or 2, wherein the isomaltooligosaccharide contains isomaltose and panose, and the mass ratio of isomaltose to panose is 1:1 to 1:10 in terms of solid content.

4. A hair styling force enhancer according to any one of claims 1 to 3, characterized by having a hair styling force.

5. The hair styling force enhancer of any one of claims 1 to 4, characterized by improving the feel of hair.

6. The hair styling force enhancer of claim 5, wherein the improvement in hair feel is inhibition of hair catching, inhibition of stickiness of hair, and/or improvement in smoothness of hair.

7. The hair styling force enhancer of any one of claims 1 to 6, characterized in that white dust is suppressed.

8. The hair styling force enhancer of any one of claims 1 to 7, which has a hair care effect.

9. The hair styling force enhancer of claim 8, wherein the care action of the hair is to increase the softness of the hair, to increase the tensile strength of the hair and/or to reduce damage to the hair surface.

10. A hair styling force enhancer according to claim 8 or 9, characterized by being used for protecting hair from hair damage.

11. The hair styling force enhancer of any one of claims 1 to 10, characterized in that dryness of the scalp is suppressed.

12. A hair styling composition comprising the hair styling aid according to any one of claims 1 to 11.

13. The hair styling composition according to claim 12, wherein the hair styling force enhancer is incorporated in an amount of 0.1 to 30% by mass based on the total amount of isomaltooligosaccharides contained in the hair styling force enhancer in terms of solid.

14. The hair styling composition according to claim 12 or 13, which is a hair tonic, hair mist, hair tonic, hair cream, hair styling lotion, hair curler, hair tonic, hair gel, hair foam, hair mousse, hair spray, hair essence, hair cream, hair wax, hair water grease, hair oil, hair cream, cosmetics, hair stick, or hair setting solid.

15. The hair styling composition according to any one of claims 12 to 14, wherein the hair styling composition is a leave-on hair styling composition.

16. The hair styling composition according to any one of claims 12 to 14, wherein the hair styling composition is a hair styling composition which is to be cleaned after use.

17. A hair styling force enhancing method, wherein the hair styling composition according to any one of claims 12 to 16 is applied to hair.