JP2012149115A - Detergent composition for washing laundry by hand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent composition for washing laundry by hand, wherein the detergent composition can achieve a cooling sensation and washability (washability by hand) simultaneously and can wash laundry comfortably by hand; and to provide a method of producing the same.SOLUTION: The detergent composition for washing the laundry by hand comprises: 0.1-2.5 mass% of menthol (a); 0.6 mass% or more of one organic polymer (b) having an average molecular weight of 500,000 or more and selected from a group comprising an organic polymer in which a sulfonic acid group or its base accounts for 60 mol% or more of a structural monomer and an organic polymer in which a sulfate group or its base accounts for 60 mol% or more thereof; and one or more detergent component (c) selected from a group comprising a surfactant (c1), an alkali agent (c2), and a metal ion-sequestering agent (c3).

Description

  The present invention relates to a detergent composition for hand-washing laundry having a cool feeling and improved hand-washing of clothes and a method for producing the same.

  There are two types of washing methods: hand washing and washing machine washing. In recent years, there has been a tendency for washing by washing machines to increase due to the widespread use of washing machines. However, from the viewpoint of removing dirt and economy, hand washing is still performed.

  Compared to washing with a washing machine, hand-washing allows fine washing depending on the situation, such as the degree of dirt removal and the type of object to be washed. In some cases, sweating and uncomfortable work was accompanied by physical and mental fatigue. In addition, “rubbing”, which rubs the objects to be cleaned, is one of the most natural hand-washing methods because it is easy to apply mechanical force to the parts to be cleaned. Become. As a result, the feeling of wanting to finish it quickly was reached, and as a result, the removal of dirt sometimes ended inadequately. Therefore, a comfort that eliminates the feeling of fatigue has been demanded for hand washing.

  Patent Document 1 discloses a detergent that can be blended with l-menthol or the like and can give a cool feeling to an operator during hand washing. Patent Document 2 also discloses a granular detergent composition containing a component capable of imparting a cool feeling such as menthol.

  However, surprisingly, when menthol is blended, the slipperiness of clothing decreases, and it becomes difficult to wash it, so it becomes difficult to wash by hand and becomes tired or uncomfortable. It turns out that there is a problem. In the case of humans, the local friction that occurs during the washing with the rice causes scratches and cuts on the hands, and in the case of an object to be cleaned, it appears as abrasion of the fibers, so-called “scratches on the cloth”. The fiber damage not only shortens the service life of the garment, but also serves as an accelerating factor in terms of dirt adhesion, and further increases the physical burden required for cleaning.

JP 2006-160914 A International Publication No. 01/34753 Pamphlet

  In hand-washing washing, it is possible to give comfort and enjoyment to the worker, particularly depending on the surrounding environment. However, simply adding a cooling agent reduces the slipperiness of clothes during hand-washing and makes it difficult to wash it. As a result, it has been found that the comfort during washing is impaired. Thus, it has been found that the basics of hand-washing are not only removing dirt from clothes but also being easy to wash and cool.

  The subject of this invention is providing the detergent composition for hand-washing which can achieve cool feeling and the ease of washing (easy washing easily), and can perform hand-washing comfortably, and its manufacturing method.

The present invention relates to a detergent composition for hand-washing laundry containing the following (a) to (c).
(A) Menthol 0.1 to 2.5% by mass
(B) (b1) an organic polymer having a spinnability with an average molecular weight of 1.5 million or more, and (b2) an organic polymer with an average molecular weight of 500,000 or more, wherein 60 mol% or more of the constituent monomers are sulfonic acid groups or its One or more organic polymers selected from the group consisting of a salt type group or a sulfate group or an organic polymer having a salt type group 0.6% by mass or more (c) (c1) surfactant, (c2) alkali agent And (c3) one or more detergent components selected from the group consisting of sequestering agents

Moreover, this invention relates to the manufacturing method of the detergent composition for hand-washing laundry including the following process (I) and (B).
Step (a): (a) Step of preparing a liquid premix containing menthol [hereinafter referred to as component (a)] and an oil solvent Step (b): The liquid premix obtained in step (a), (B) (b1) an organic polymer having a spinnability with an average molecular weight of 1.5 million or more, and (b2) an organic polymer with an average molecular weight of 500,000 or more, wherein 60 mol% or more of the constituent monomers are sulfonic acid groups or its One or more organic polymers selected from the group consisting of a salt type group or a sulfate group or an organic polymer having a salt type group thereof (hereinafter referred to as component (b)), (c) (c1) a surfactant, (C2) a step of mixing one or more detergent components selected from the group consisting of an alkali agent and (c3) a sequestering agent [hereinafter referred to as component (c)]

  ADVANTAGE OF THE INVENTION According to this invention, the detergent composition for hand-washing washing which can be wash | cleaned easily and can feel very cool by hand washing, and its manufacturing method are provided.

<(A) component>
In the present invention, a very comfortable hand-washing wash can be achieved by combining the menthol of component (a), particularly l-menthol, and component (b). Here, the method for adding menthol to the detergent composition for hand-washing laundry is not particularly limited. For example, when l-menthol that is solid at room temperature (25 ° C.) is used, (1) A method of adding a finely pulverized solid, (2) a method in which menthol is dissolved at a melting point or higher and sprayed during granulation or after blending, and (3) after menthol is dissolved in an oily solvent, For example, a method of adding by spraying during granulation or after blending can be used. Among these, the addition method (3) is more preferable from the viewpoint of handling properties.

  The addition method (3) will be described in more detail. Here, the oily solvent to be used is not particularly limited, but an alcoholic compound, an ester compound, an ether compound, an aldehyde compound, a ketone compound, a terpene hydrocarbon or an oily solvent in which they are mixed Any menthol that can be dissolved or finely dispersed at room temperature (25 ° C.) to form a uniform liquid can be used. In particular, from the viewpoint of being added to the detergent composition, it is desirable to select an oily solvent that does not volatilize at room temperature and can dissolve menthol, and can be stably present in the washing liquid. Examples of the oily solvent include octyldodecyl myristate, isopropyl palmitate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitol tetraoleate, and isopropyl myristate. On the other hand, when the amount of the oily solvent is increased, the liquid component to be added is increased, so that there is a risk that the physical properties of the powder are lowered. Therefore, in order to reduce the amount of liquid component used as much as possible, it is desirable to use a detergent fragrance component as an oily solvent or as part of an oily solvent. Furthermore, it is desirable to contain a citrus fragrance component that is compatible with menthol odor, such as limonene and citral.

  The total amount of the component (a) and the oily solvent in the liquid premix is preferably 0.15% by mass or more, more preferably 0.3 to 2.0% by mass, still more preferably 0.5 to 1.5% by mass. %. In the liquid premix, from the viewpoint of handling, the mass ratio of the component (a) / oil solvent is preferably 2/1 to 1/4, more preferably 2/1 to 1/3, still more preferably 2 /. 1 to 1/2.

  Furthermore, the temperature of a liquid premix should just be liquid at normal temperature (25 degreeC), and the temperature at the time of addition to a detergent is not ask | required, but 60 degrees C or less is preferable from a stability point. Further, the viscosity is preferably 100 mPa · s or less, more preferably 50 mPa · s or less at normal temperature (25 ° C.). On the other hand, 10 mPa · s or more is preferable.

  From the viewpoint of powder physical properties after addition of the liquid premix, 0.15 parts by mass or more, and further 0.5 to 1.5 parts by mass of the liquid premix may be mixed with 100 parts by mass of the detergent component (c). preferable.

<(B) component>
The organic polymer of component (b) used in the present invention is a component that improves the slipperiness and ease of scouring of clothes associated with the addition of a specific cooling agent, and includes the following (b1) and (b2): ) One or more organic polymers selected from the group consisting of: Preferably, it is an organic polymer of (b2).

(B1) Organic polymer having spinnability with an average molecular weight of 1.5 million or more By using the organic polymer of (b1), the effect of improving the slipperiness of clothes and the ease of washing with menthol, that is, at home When used for hand-washing performed, the feel in hand-washing is improved, and at the same time, the physical load is alleviated, and further, care of clothes and reduction of hand rubs can be achieved. In addition, when used for washing machine washing, the slippery property prevents damage to clothing, and clothing care such as preventing losing shape by preventing tangling in the washing machine by sliding between clothing. There is an effect.

(B2) An organic polymer having an average molecular weight of 500,000 or more, wherein 60 mol% or more of the constituent monomers have a sulfonic acid group or a salt type group thereof, or a sulfate group or a salt type group thereof (b2) By using this organic polymer, when used in hand washing laundry performed at home without deteriorating the re-contamination prevention property, the feeling in hand washing is improved, and at the same time the physical load is reduced, There is an effect that care and hand care can be achieved. Also, when used for washing machine washing, its slipperiness prevents damage to clothing, slipping between clothing and fibers prevents tangling and deformation in the washing machine, etc. Has the effect of clothing care.

(Definition of average molecular weight)
The average molecular weight of the organic polymer used in the present invention can be determined by gel permeation chromatograph (GPC) measurement under the following measurement conditions. Polyethylene oxide (PEO) is used for the standard sample, and the PEO equivalent molecular weight is used. In the present invention, the average molecular weight is determined not by the number average molecular weight or the weight average molecular weight but by the PEO equivalent value (hereinafter referred to as peak top molecular weight) of the fraction having the highest detected intensity of the GPC elution curve. That is, for example, “an organic polymer having an average molecular weight of 1,500,000 or more” refers to an organic polymer having a peak top molecular weight of 1,500,000 or more in terms of PEO equivalent molecular weight.

[GPC method measurement conditions]
The column is PW / GMPWXL / GMPWXL (manufactured by Tosoh Corp.), and the eluent is 0.2M phosphate buffer (KH ₂ PO ₄ , Na ₂ HPO ₄ , pH = 7) / CH ₃ CN = 9/1 (weight ratio) The column temperature is 40 ° C., the flow rate is 1.0 mL / min, and the sample concentration is 1 to 100 μg / mL. As the detector, RALLS (90 ° light scattering analyzer) is used. The approximate value of the average molecular weight can also be estimated using an RID (differential refractometer). GPC analysis using RID is, for example, column: GMPWXL + GMPWXL, eluent: 0.2 M phosphate buffer / CH ₃ CN = 9/1 (weight ratio), column temperature: 40 ° C., flow rate: 0.5 mL / min, Concentration: measured as 0.05 mg / mL.

The organic polymer used in the present invention will be described in detail below.
Organic polymer (b1) As an organic polymer having a spinnability, an organic polymer having a higher average molecular weight can achieve the desired “slipperiness” with a smaller amount, and thus can work advantageously in a menthol-containing detergent. Can do. The average molecular weight is preferably 2 million or more, more preferably 2.5 million or more, and even more preferably 3 million or more, from the viewpoint of realizing sufficient “slidability” even at a dilute concentration. On the other hand, from the viewpoint of solubility, the average molecular weight is preferably 10,000,000 or less, more preferably 30 million or less, and even more preferably 20 million or less.

  The organic polymer having spinnability as referred to in the present invention (hereinafter also referred to as spinnable organic polymer) is an organic polymer whose aqueous solution exhibits the above-mentioned spinnability. This spinnable organic polymer is generally different from a so-called “thickening organic polymer” in which a high molecular weight organic polymer is expressed. In the present invention, the spinnable organic polymer is preferably an organic polymer in which an aqueous solution having a concentration of 30 g / L or less exhibits spinnability, and more preferably, an aqueous solution having a concentration of 10 g / L or less exhibits spinnability. An organic polymer, and more preferably an aqueous polymer having a concentration of 5 g / L or less exhibits spinnability.

  In the present invention, the presence or absence of spinnability of the organic polymer is determined by the following method. An aqueous solution containing 0.07 wt% sodium dodecylbenzenesulfonate and 0.07 wt% anhydrous sodium carbonate has an aqueous solution viscosity of about 500 mPa · s, about 200 mPa · s, about 100 mPa · s, about 20 mPa · s ( A mixed aqueous solution to which an organic polymer was added at a polymer concentration of B type viscometer, 0 ° DH, 60 r / min, measured at 25 ° C.) was prepared. If it has spinnability at any viscosity, it is determined as a spinnable organic polymer.

[Spinning method]
The aqueous solution in which the yarn is wound when the dropping operation is gently performed from a Pasteur pipette (glass, for example, ASAHITECHNO GLASS, IK-PAS-5P) having an inner diameter of 1 mm at the tip is an aqueous solution exhibiting spinnability in the present invention. A solution in which a yarn is spun for a long time is an aqueous solution having strong (or high) spinnability. The aqueous solution is agitated well at 25 ° C. and used for determination. At least the tip of the Pasteur pipette is 5 mm away from the dropping point, and the dropping operation is performed. For an aqueous solution having strong spinnability, it is easier to confirm if the dropping operation is performed from a higher position. The dropping operation may be confirmed multiple times. Usually, the “thread” confirmed during the dropping operation has a width smaller than 1 mm. About this physical property, it can also measure with apparatuses, such as a thermohaake company extension viscosity measuring apparatus CaBER1 (Capillary Breakup Extension Rheometer).

(B2) Organic Polymer The sulfonic acid group and / or sulfuric acid group-containing polymer used in the present invention may be a vinyl polymer, a condensation polymerization polymer, or a polyether polymer. There may be.

  When the sulfonic acid group and / or sulfuric acid group-containing polymer used in the present invention is a vinyl polymer, the sulfonic acid group and / or its salt type group as a monomer unit, and / or the sulfuric acid group and / or its salt Although it does not specifically limit as a vinyl type structural monomer which has a group of type | mold, For example, since it is highly polymerizable and it is easy to obtain a high molecular weight body, 2- (meth) acryloyloxyethanesulfonic acid, 2- ( Groups derived from (meth) acryloyloxypropane sulfonic acid, 2- (meth) acrylamide-2-alkyl (1 to 4 carbon atoms) propane sulfonic acid, and styrene sulfonic acid are preferred, and 2-acrylamido-2-methylpropane sulfonic acid, And a group derived from styrenesulfonic acid is more preferable, derived from 2-acrylamido-2-methylpropanesulfonic acid Group is more preferred.

  The counter ion that forms a salt-type group of a sulfonic acid group or a sulfuric acid group is not particularly limited. For example, an alkali metal ion such as sodium ion or potassium ion, or an ammonium ion is preferable. More preferred is potassium ion.

  In the sulfonic acid group and / or sulfuric acid group-containing polymer in the present invention, the constituent monomers may be used alone or in combination of two or more. When the constituent monomers are two or more, the arrangement of these constituent monomers is as follows. There is no particular limitation, and random arrangement, alternate arrangement, or block arrangement may be used.

  When the sulfonic acid group and / or sulfuric acid group-containing polymer in the present invention is a vinyl polymer, the method for synthesizing the vinyl polymer is not particularly limited, and a known method can be selected. For example, a vinyl monomer containing a sulfonic acid group (and / or a salt type group thereof) and / or a sulfuric acid group (and / or a salt type group thereof) may be homopolymerized, and this and a sulfonic acid group. Group (and / or a salt-type group thereof) and / or other monomer not containing a sulfate group (and / or a salt-type group thereof) at a ratio such that the former mole fraction is 60 mol% or more. Polymerization may be performed. Alternatively, a sulfonic acid group (and / or a salt type group thereof) and / or a sulfate group (and / or a salt type group thereof) is added to any existing polymer in a proportion of 60 mol% or more of the constituent monomers. You may introduce and use.

  Such a sulfonic acid group and / or sulfate group-containing polymer is a typical soil particle handled by a detergent, and solid particles such as mud and soot have an affinity for any of these soil particles in a washing liquid. It is considered low. For this reason, even if any particles of mud and soot are present in the washing bath, when the high polymer of the polymer is present in the washing liquid at such a concentration that can exhibit slipperiness, It is considered that the particles are not adsorbed on the particles at the same time and cause aggregation, so that it becomes a binder between the fibers and the particles, and the dirt hardly adheres to the clothes. That is, when the spinnable organic polymer of the present invention is a sulfonic acid group and / or sulfuric acid group-containing polymer, among the monomers constituting the polymer, the molar fraction of these sulfonic acid monomers and sulfuric acid monomers is large. The more preferable.

  The amount of the constituent monomer containing a sulfonic acid group (and / or a salt type group thereof) or a sulfuric acid group (and / or a salt type group thereof) is preferably 60 mol% or more in all constituent monomers, and 66 mol. % Or more is more preferable, 85 mol% or more is more preferable, and 95 mol% or more is further more preferable.

  As the sulfonic acid group and / or sulfuric acid group-containing polymer in the present invention, molecules having an average molecular weight of 500,000 or more are used. As the average molecular weight is larger, the target “slip” can be realized with a smaller amount. The average molecular weight is preferably 1,000,000 or more, more preferably 1,500,000 or more, further preferably 2,000,000 or more, further preferably 2,500,000 or more, and more than 3,000,000 or more from the viewpoint of realizing sufficient slip even at a dilute concentration. Preferably, 4.5 million or more is more preferable, 5 million or more is more preferable, and 6 million or more is more preferable. However, from the viewpoint of solubility, the average molecular weight is preferably 30 million or less, and more preferably 20 million or less. More specifically, it can be selected from the spinnable polymers described in International Publication No. 2005/78059 pamphlet.

  In the physical properties of the sulfonic acid group and / or sulfuric acid group-containing polymer in the present invention, the physical property suitable for the expression of “slip property” is “spinning property”. A polymer having higher spinnability can exhibit “slippery” with a smaller amount of blending, and thus can be used advantageously in a menthol blended detergent. In the present invention, high spinnability means that a lower concentration aqueous solution and a lower viscosity aqueous solution exhibit spinnability. A linear polymer having a higher molecular weight and lower crosslinkability has higher spinnability and better expresses “slidability”, and is a preferred polymer in the present invention.

<(C) component>
In the detergent composition for hand-washing laundry of the present invention, (c1) surfactant (hereinafter referred to as (c1) component), (c2) alkaline agent (hereinafter referred to as (c2) component) and (c3) as component (c) 1) One or more detergent components selected from the group consisting of sequestering agents [hereinafter referred to as component (c3)]. It is preferable to contain two or more of the component (c1), the component (c2) and the component (c3), and further each of the components (c1), (c2) and (c3).

[(C1) component]
In terms of enhancing the detergency, an anionic surfactant or a nonionic surfactant can be used as the main surfactant. Among these, an anionic surfactant is preferable.

  The anionic surfactant is not particularly limited, and examples thereof include straight chain alkylbenzene sulfonates, alkyl sulfate esters, polyoxyalkylene alkyl ether sulfates, alpha sulfates having an alkyl chain having 10 to 18 carbon atoms. Preference is given to alkali metal salts such as pho fatty acid methyl ester salts, alkyl or alkenyl ether carboxylates, alkyl or alkenyl phosphate esters or salts thereof, and fatty acid salts derived from beef tallow or coconut oil. In particular, sodium alkylbenzenesulfonate is preferable. The anionic surfactant has an effect of further enhancing the “spinning property” of the organic polymer as defined in the present invention and the “slidability imparting effect” by the organic polymer. In this respect, the content of the anionic surfactant in the detergent composition is preferably 5% by weight or more, more preferably 10% by weight or more, more preferably 12% by weight or more, and further preferably 15% by weight or more. % By weight or more is more preferable, and 20% by weight or more is more preferable. Moreover, from a viewpoint of powder physical properties, 40 weight% or less is preferable, 35 weight% or less is more preferable, and 30 weight% or less is further more preferable.

  As the nonionic surfactant, polyoxyalkylene [preferably oxyethylene and / or oxypropylene] alkyl ether is suitable. Polyoxyethylene alkyl phenyl ether, higher fatty acid alkanolamide or its alkylene oxide adduct, sucrose fatty acid ester, alkyl glycoside, fatty acid glycerin monoester can also be used. Nonionic surfactants have good resistance to hard water, and have a remarkable detergency for oily dirt such as sebum dirt. From the viewpoint of foamability and rinsability, the use of 15% by weight or less is preferred, 5% by weight or less, further 3% by weight or less, and more preferably 0% by weight (not containing).

  In the detergent composition of the present invention, surfactants such as betaine amphoteric surfactants, phosphate ester surfactants, soaps and cationic surfactants can be appropriately blended.

[(C2) component]
From the viewpoint of detergency, it is preferable to add an alkaline agent to the detergent composition. Examples of the alkali agent include alkali metal carbonates such as sodium carbonate collectively called dense ash and light ash, amorphous alkali metal silicates such as JIS No. 1, No. 2, No. 3 sodium silicate, and crystalline alkali. Examples include alkali metal salts such as metal silicates. The alkali metal carbonate has an effect of further enhancing the “slip property” by the organic polymer defined in the present invention. In this respect, the content of the alkali metal carbonate in the detergent composition is preferably 1% by weight or more, more preferably 5% by weight or more, more preferably 7% by weight or more, and further preferably 10% by weight or more. Moreover, from a viewpoint of the balance of a mixing | blending, 40 weight% or less is preferable, 30 weight% or less is more preferable, and 20 mass% or less is more preferable.

[(C3) component]
As a builder, it is very effective from the viewpoint of detergency that a sequestering agent is blended into a detergent composition for hand-washing laundry and the hardness component in the washing water is captured. Further, the sequestering agent has an effect of further enhancing the “slip property” by the polymer defined in the present invention. In particular, it is more effective to add a sequestering agent having a calcium ion scavenging ability of 100 mgCaCO ₃ / g or more. Such sequestering agents include crystalline aluminosilicate (zeolite), crystalline sodium silicate, acrylic acid polymer, acrylic acid-maleic acid copolymer, sodium tripolyphosphate, ethylenediaminetetraacetic acid, methylglycine diacetic acid. It is done. Among these, zeolite is more preferable. However, sodium carbonate and amorphous sodium silicate are not included in the sequestering agent in the present invention.

<(D) component>
In the detergent composition for hand-washing laundry of the present invention, from the viewpoint of maintaining the effect of menthol, (d) limonene, citral, terpinolene, linalool, dihydromyrcenol, α-pinene, β-pinene, myrcene, l-menton, It is preferable to contain 1 or more types of fragrance | flavor components [henceforth (d) component] chosen from the group which consists of lime oil. (D) A component can be used as a fragrance composition which combined two or more.

  In addition, in this invention, within the range which does not impair the effect of this invention, in addition to (d) component, it contains fragrance | flavor components, such as orange oil, camphene, juniper berry oil, pepper oil oil, as a fragrance | flavor component. Can do. These other fragrance components can be used as a fragrance composition in which a plurality of fragrance components are combined.

<Detergent composition for hand-washing laundry>
The detergent composition for hand-washing laundry of the present invention contains (a) component in an amount of 0.1 to 2.5% by mass, preferably 0.3 to 2.5% by mass, more preferably 0.5 to 2% by mass. . Moreover, (b) component is 0.6 mass% or more, Preferably it is 0.6-2 mass%, More preferably, 0.6-1.5 mass% is contained. Moreover, content in the composition of (c1) among (c) component is 10-40, Furthermore, 15-35 mass%, More preferably, 15-30 mass%. Moreover, content in the composition of (c2) is 5-30, Furthermore, 7-25 mass%, Furthermore, 10-20 mass% is more preferable. Further, the content of the component (c3) in the detergent composition is preferably 1% by weight or more, more preferably 5% by weight or more from the viewpoint of detergency. Moreover, from a viewpoint of the balance of a mixing | blending, 50 weight% or less is preferable, 40 weight% or less is more preferable, and 30 weight% or less is more preferable.

  The content of the component (d) in the hand washing laundry detergent composition of the present invention is preferably 0.05% by weight or more, more preferably 0.1% by weight or more from the viewpoint of improving the effect of the menthol of the component (a). Preferably, 0.15 weight% or more is more preferable. Moreover, from a viewpoint of the balance of the fragrance | flavor as a detergent composition for hand-washing laundry, 1.5 weight% or less is preferable, 1.2 weight% or less is more preferable, and 1.0 weight% or less is especially preferable. In addition, the mass ratio of the component (a) / the component (d) is preferably 2/1 to 1/2, and more preferably 1.8 / 1 to 1/1. The component (d) preferably occupies 30% by mass or more, and more preferably 40% by mass or more in the total amount of the fragrance component (this amount does not include the amount of the component (a)).

  The component (a) of the present invention is a component that gives a cool feeling to the worker during hand-washing laundry, and the organic polymer such as the component (b) of the present invention is a slip of textile products (clothing, etc.) in hand-washing laundry. It is a component that improves the properties. However, the present inventors have found that both these cool feelings and slipperiness are not sufficiently expressed by simply combining these, and (a) the content of the component, (b) the content of the component, (b) By optimizing the type of ingredients, and further, if necessary, optimizing the type of ingredients to achieve a detergent composition for hand-washing laundry that is excellent in both coolness and slipperiness It is.

  The detergent composition for hand-washing laundry of the present invention can contain known detergent components that are usually used in detergent compositions. For example, polymers other than the component (b), sodium sulfate, and the like can be mentioned.

  In the hand-washing laundry using the detergent composition for hand-washing laundry of the present invention, it is preferable to use a washing liquid containing the composition at a concentration of 2 to 5 g / L.

  Various detergent components listed in Tables 1 to 3 were added to water at a detergent concentration of 3.5 g / L, and the mixture was stirred for 30 minutes in a beaker to prepare a detergent aqueous solution. The water used had a hardness of 5 ° DH and a water temperature of 30 ° C. The detergent aqueous solution was transferred to a bag, and underwear (Gunze YG, L size) and a commercially available towel (Takei Towel Co., Ltd.) each were soaked and allowed to stand for 15 minutes. Two monitors (one male and one female) each washed underwear and towels for a total of 30 minutes, and evaluated the slipperiness and coolness by the following methods.

<Slippery evaluation>
Since towels are piled and easy to evaluate, towels were used for evaluation of slipperiness. The score when the comparative example 1 is used as a reference is shown, and a score of 0 or more is accepted. The score is calculated as the total score of two monitors. Those that slipped from Comparative Example 1 (reference) are indicated by +1 points, those that are equivalent are indicated by 0 points, and those that are inferior to the reference are indicated by -1 points.

<Evaluation of coolness>
While putting the hands on the washing liquid, the towels and the underwear were alternately washed for 1 hour. The following criteria were used to determine whether or not a cool feeling was felt when washing with a shampoo. A score is shown by the total score of two monitors, and if it is 0 points or more, it is judged that a cool feeling can be felt quickly during washing. In addition, when the total score is −1 or less, it is judged that the cool feeling is inferior because the cool feeling is hardly felt during washing.
I felt a cool feeling within 10 minutes from the start of washing +1 point I felt a cooling feeling within 10 minutes from the start of washing 0 points I felt a cooling feeling after 20 minutes from the start of washing -1 point

Furthermore, the detergent composition of Example 4 was applied to four Thai monitors who were doing hand washing and washing daily, washing temperature 25-30 ° C., bath ratio 10-20, detergent concentration 3.5 g-5 g / When used for hand-washing under the conditions of L, the following impressions were obtained.
○ The foam was soft and easy to touch, and the stains were good. Because my hands don't get hot, I can wash them comfortably and I want to wash more. 4 out of 4 ○ Hands don't get hot and cool, so you don't have to rest on the way or cool your hands, washing time is short and efficient. 2 out of 4 ○ Slippery and less rub on hands, so hands won't hurt. 3 people out of 4 As mentioned above, by combining both cool feeling and slipperiness (easy washing), it becomes the ultimate comfortable hand washing detergent.

The components in the table are as follows.
L-Menthol: Synthetic menthol, manufactured by Takasago International Corporation

Synthetic polymer: Copolymer of sodium 2-acrylamido-2-methylpropanesulfonate and sodium acrylate produced by the following synthesis example (sodium 2-acrylamido-2-methylpropanesulfonate / sodium acrylate = 95/5 , Molar ratio)
(Synthesis example)
When 6.00 g of sugar ester (S-770, Mitsubishi Chemical Foods) was dissolved in 800 g of n-hexane and refluxed in a nitrogen atmosphere, 600 g of 2-acrylamido-2-methylpropanesulfonic acid, sodium hydroxide was added. 160 g, acrylic acid 10 g, 2,2′-azobis (2-methylpropionamidine) dihydrochloride (V-50, manufactured by Wako Pure Chemical Industries, Ltd.) 0.80 g dissolved in ion-exchanged water 510 g While maintaining the temperature at 10 ° C. or lower, the mixture was dropped and dispersed over 1 hour, and further stirred for 30 minutes. After azeotropic dehydration / drying, 674 g (99.7%) of colorless granular polymer was obtained. As a result of GPC measurement of the obtained polymer, the peak top molecular weight was 7.8 million. The average particle size was 220 μm. Moreover, the obtained polymer had spinnability.

LAS-Na: linear alkylbenzene sulfonate having 10 to 16 carbon atoms in the alkyl group (Neopelex G-15 manufactured by Kao Corporation)
・ Sodium carbonate: manufactured by Shandong Hai Chemical Exit Co., Ltd. ・ Silicate: TOKYUYAMA SIAM SILICA CO. LTD. Sodium silicate / sodium sulfate: manufactured by Jiangsu Nanfeng Yuan Meiko Co., Ltd./Zeolite: HUIYING CHEMICALS CO. , LTD. Copolymer: Acrylic acid / maleic acid copolymer (Rohm and Hass, Inc., ACUSOL 479N, weight average molecular weight 70,000)

Fragrance composition (d1): Fragrance composition having the following composition (1) Limonene 67.0% by mass
(2) Citral 4.0% by mass
(3) Terpinolene 8.8% by mass
(4) α-Pinene 2.5% by mass
(5) β-Pinene 1.1% by mass
(6) Myrcene 0.5% by mass
(7) linalool 8.8% by mass
(8) Dihydromyrsenol 4.4% by mass
(9) L-Menton 1.8% by mass
(10) Lime oil 1.1% by mass
Total of (1) to (10): 100.0% by mass

Fragrance composition (x1): Fragrance composition having the following composition (I) Orange oil 79.5% by mass
(B) 1,4-cineole 4.1% by mass
(C) Kamphen 5.1 mass%
(D) Juniper berry oil 2.0% by mass
(E) Pepper oil oil 1.1% by mass
(F) p-cymene 8.2% by mass
Total of (i) to (f): 100.0% by mass

Claims (3)

A detergent composition for hand-washing laundry comprising the following (a) to (c).
(A) Menthol 0.1 to 2.5% by mass
(B) (b1) an organic polymer having a spinnability with an average molecular weight of 1.5 million or more, and (b2) an organic polymer with an average molecular weight of 500,000 or more, wherein 60 mol% or more of the constituent monomers are sulfonic acid groups or its One or more organic polymers selected from the group consisting of a salt type group or a sulfate group or an organic polymer having a salt type group 0.6% by mass or more (c) (c1) surfactant, (c2) alkali agent And (c3) one or more detergent components selected from the group consisting of sequestering agents   Furthermore, (d) containing one or more perfume ingredients selected from the group consisting of limonene, citral, terpinolene, linalool, dihydromyrsenol, α-pinene, β-pinene, myrcene, l-menton, lime oil, The detergent composition for hand-washing laundry according to claim 1. The manufacturing method of the detergent composition for hand-washing laundry including the following process (I) and (B).
Step (a): (a) Step of preparing a liquid premix containing menthol [hereinafter referred to as component (a)] and an oil solvent Step (b): The liquid premix obtained in step (a), (B) (b1) an organic polymer having a spinnability with an average molecular weight of 1.5 million or more, and (b2) an organic polymer with an average molecular weight of 500,000 or more, wherein 60 mol% or more of the constituent monomers are sulfonic acid groups or its One or more organic polymers selected from the group consisting of a salt type group or a sulfate group or an organic polymer having a salt type group thereof (hereinafter referred to as component (b)), (c) (c1) a surfactant, (C2) a step of mixing one or more detergent components selected from the group consisting of an alkali agent and (c3) a sequestering agent [hereinafter referred to as component (c)]