Deodorizing rinsing aid composition

Abstract

The objective is to provide a deodorizing rinsing aid composition that offers excellent drying properties and finish, and deodorizes malodorous components without leaving any odor-derived odors inside the washing machine chamber. [Solution] The present invention provides a deodorizing rinsing aid composition containing a polyglycerin fatty acid ester, a fragrance containing a Lamiaceae plant-derived compound in an amount of 0.005% by mass or more and 0.5% by mass or less, and water.

Description

Technical Field

[0001] The present invention relates to a deodorizing rinsing aid composition. Specifically, it relates to a deodorizing rinsing aid containing polyglycerol fatty acid ester, a fragrance containing a compound derived from a Lamiaceae plant in a specific amount, and water.

[0002] In recent years, automatic dishwashers have been widely used for washing dishes. Also in hotels, restaurants, catering companies, hospitals, company cafeterias, etc., in order to efficiently wash the dishes after use, and due to the recent improvement in hygiene awareness, industrial automatic dishwashers are widely used.

[0003] When washing dishes with an automatic dishwasher, especially an industrial automatic dishwasher, generally, a cleaning liquid prepared at a predetermined concentration is heated and held in a cleaning liquid tank, and then a certain amount of the cleaning liquid in the cleaning liquid tank is injected from a nozzle into the dishwasher compartment to wash the dishes in the dishwasher compartment. After that, a certain amount of rinsing water is injected from the nozzle of the dishwasher for rinsing, and drying is performed through such a process. This rinsing aid contains a surfactant, which reduces the surface tension of the rinsing liquid, makes water droplets spread easily on the surface of the dishes, accelerates drying, and further reduces white spots called water spots, enabling the dishes to have a better appearance.

[0004] In recent years, especially due to the increasing environmental awareness, water-saving automatic dishwashers have become popular. However, since the water-saving automatic dishwashers use less rinsing water than ordinary automatic dishwashers, the dirt brought in from the objects to be washed tends to accumulate in the washing tank, and the bad odor in the dishwasher compartment caused by the dirty cleaning liquid in the tank has been a problem.

[0005] As such deodorizing rinsing aid compositions, Patent Document 1 discloses a rinsing aid comprising polyglycerin fatty acid esters with an HLB of 3 to 13 as essential components; Patent Document 2 discloses a drying and finishing agent composition for plastic tableware containing polyglycerin fatty acid esters with an HLB of 10 or higher obtained by esterifying a fatty acid having 8 to 12 carbon atoms with polyglycerin having an average degree of polymerization (n=6 to 10), and sorbitan fatty acid esters having 6 to 12 carbon atoms; and Patent Document 2 discloses a rinsing aid composition containing (A) a polyglycerin fatty acid ester with an HLB of 5 or less, (B) a polyglycerin fatty acid ester with an HLB of 13 or less, and (C) water, wherein components (A) and (B) are blended in a predetermined ratio. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 60-53599 [Patent Document 2] Japanese Patent Publication No. 2014-181337 [Patent Document 3] Japanese Patent Publication No. 2019-52300 [Overview of the project] [Problems that the invention aims to solve]

[0007] Patent Document 1 contains a large amount of polyglycerin fatty acid ester, which may increase foaming when used in cleaning solutions containing a large amount of protein stains, and also has insufficient deodorizing properties. Patent Document 2 has excellent drying properties and finish for plastic tableware, but does not show sufficient performance for tableware made of other materials, and may not adequately suppress unpleasant odors inside the dishwasher. The rinsing aid composition described in Patent Document 3 has excellent drying properties and finish, and shows deodorizing effects against unpleasant odors, but there is a risk that fragrance-derived odors may remain inside the dishwasher.

[0008] The present invention has been made in view of the above problems, and aims to provide a deodorizing rinsing aid composition that has excellent drying properties and finish, and in which odors derived from raw materials do not remain in the washing machine chamber and exhibit good deodorizing properties. [Means for solving the problem]

[0009] In order to solve the above problems, the inventors conducted diligent research and found that the above problems can be solved by including polyglycerin fatty acid esters and fragrances containing compounds derived from Lamiaceae plants, thus completing the present invention.

[0010] In other words, the present invention is (1) A deodorizing rinsing aid composition containing (A) polyglycerin fatty acid ester, (B) a fragrance containing a compound derived from Lamiaceae plants in an amount of 0.005% by mass or more and 0.5% by mass or less, and (C) water. (2) The deodorizing rinsing aid composition described in (1), wherein the fragrance containing a compound derived from a Lamiaceae plant is perillaldehyde, (3) The deodorizing rinsing aid composition described in (1), wherein the component (A) is a polyglycerin fatty acid ester with 10 or more carbon atoms and 14 or less carbon atoms. (4)(E) The deodorizing rinsing aid composition described in (1), which contains cyclodextrin as an ingredient, and (5) The deodorizing rinsing aid composition described in (1), wherein the HLB value of the polyglycerin fatty acid ester, which is component (A), is 11 or higher and 19 or lower. It is characterized by the following. [Effects of the Invention]

[0011] The deodorizing rinsing aid composition of the present invention has excellent drying properties and finish, and effectively deodorizes malodorous components without any odor derived from the components used in the deodorizing rinsing aid composition remaining inside the washing machine chamber. [Modes for carrying out the invention]

[0012] The present invention is a deodorizing rinsing aid composition containing (A) a polyglycerin fatty acid ester, (B) a fragrance containing a compound derived from a Lamiaceae plant in an amount of 0.005% by mass or more and 0.5% by mass or less, and (C) water.

[0013] The present invention contains a polyglycerin fatty acid ester as component (A), which contributes to drying properties, finish, and foam suppression.

[0014] Polyglycerol fatty acid esters are polyhydric alcohol-type nonionic surfactants in which the hydrophilic group is polyglycerol and the hydrophobic group is a hydrocarbon group within the acyl group.

[0015] Polyglycerin fatty acid esters may contain saturated hydrocarbon groups or unsaturated hydrocarbon groups individually as acyl groups, or they may contain a mixture of saturated and unsaturated hydrocarbon groups. From the viewpoint of improving the storage stability of the composition, it is preferable that the acyl groups in the polyglycerin fatty acid ester contain at least saturated hydrocarbon groups.

[0016] The acyl group in the polyglycerol fatty acid ester may be a linear acyl group or a branched acyl group. From the viewpoint of improving the storage stability of the composition, a linear acyl group is preferred for the acyl group in the polyglycerol fatty acid ester.

[0017] The fatty acids constituting the polyglycerol fatty acid ester may be either synthetic fatty acids or fatty acids derived from animal or vegetable oils and fats. Fatty acids with 8 to 18 carbon atoms are preferred, those with 8 to 16 carbon atoms are more preferred, and those with 10 to 14 carbon atoms are even more preferred.

[0018] In the present invention, the HLB (hydrophilic-lipophilic balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and is determined by the Griffin's formula. (Edited by Yoshida, Shindo, Ogaki, and Yamanaka, "New Edition Surfactant Handbook", Kogyo Tosho Co., Ltd., 1996, p. 234)

[0019] In the deodorizing rinse aid composition of the present invention, the HLB of the polyglycerol fatty acid ester of component (A) is not particularly limited as long as the effects of the present invention are achieved, but those with a high HLB are preferable in terms of drying property and finish. The HLB value is preferably 11 or more and 19 or less, more preferably 12 or more and 18 or less, and still more preferably 13 or more and 16 or less. The average degree of polymerization of glycerin is preferably 3 or more and 12 or less, and more preferably 3 or more and 10 or less.

[0020] Examples of the polyglycerol fatty acid ester include triglycerin caprylate, triglycerin laurate, triglycerin palmitate, tetraglycerin caprylate, hexaglycerin caprylate, hexaglycerin laurate, decaglycerin caprylate, decaglycerin laurate, decaglycerin myristate, decaglycerin oleate, polyglyceryl caprylate, polyglyceryl laurate, polyglyceryl myristate, polyglycerol stearate, polyglycerol oleate, etc. Among them, decaglycerin laurate is preferable from the viewpoints of drying property and finish.

[0021] As the polyglycerol fatty acid ester, a monoester, a diester, a triester, or a mixture thereof can be used, and a monoester is preferable from the viewpoints of drying property and finish.

[0022] More specifically, examples include POEM CA-701 (trademark) of Riken Vitamin Co., Ltd. as a triglyceride palmitate, SY-Glyster ML-500 (trademark) of Sakamoto Yakuhin Kogyo Co., Ltd. and NIKKOL Hexagalyn 1-L (trademark) of Nikko Chemicals Co., Ltd. as a hexaglycerin monolaurate, SY-Glyster MCA-750 (trademark) of Sakamoto Yakuhin Kogyo Co., Ltd. as a decaglycerin monocaprylate, SY-Glyster ML-750 (trademark), POEM J-0021 (trademark) of Riken Vitamin Co., Ltd. and NIKKOL Decaglyn 1-LF (trademark) of Nikko Chemicals Co., Ltd. as a decaglycerin monolaurate, SY-Glyster MO-7S (trademark) of Sakamoto Yakuhin Kogyo Co., Ltd. as a decaglycerin monooleate, and the like.

[0023] In the deodorizing rinse aid composition of the present invention, as long as the effects of the present invention are exhibited, there is no particular limitation. However, from the viewpoints of drying property, finish property, defoaming property, and storage stability, the component (A) is preferably 0.03% by mass or more and 5% by mass or less, more preferably 0.06% by mass or more and 3.5% by mass or less, still more preferably 0.08% by mass or more and 2.5% by mass or less, and particularly preferably 0.08% by mass or more and 1.5% by mass or less, based on the total amount of the deodorizing rinse aid composition. By being 0.03% by mass or more, the drying property and finish property can be obtained more sufficiently, and by being 5% by mass or less, it is possible to more effectively prevent the decrease in defoaming property and storage stability. The component (A) may be used alone or in combination of two or more.

[0024] The component (B) of the present invention contains a spice containing a compound derived from a Lamiaceae plant and contributes to deodorizing property.

[0025] Examples of the spice containing a compound derived from a Lamiaceae plant include a Lamiaceae plant extract, a compound contained in a Lamiaceae plant, or a mixture thereof. The Lamiaceae plant extract is an extract obtained by extracting a Lamiaceae plant with a solvent such as water or alcohol, and generally commercially available products can be used. Examples of plants in the Lamiaceae family include mint, sage, thyme, savory, oregano, marjoram, rosemary, and perilla.

[0026] Furthermore, examples of compounds found in plants of the Lamiaceae family include L-menthol and L-menthone, which are the main components extracted from mint, and perillaldehyde, which is the main component extracted from perilla. These compounds may be compounds extracted from plants of the Lamiaceae family or synthetic compounds. Among these, rosemary extract, compounds extracted from rosemary or mixtures thereof, perilla extract, compounds extracted from perilla or mixtures thereof are preferred, perilla extract, compounds extracted from perilla or mixtures thereof are more preferred, and perillaldehyde is even more preferred.

[0027] More specifically, examples include peppermint oil manufactured by Toyo Peppermint Industry Co., Ltd., perilla oil manufactured by Ogi Pharmaceutical Co., Ltd., L-menthol manufactured by Toyo Peppermint Industry Co., Ltd., Menthone Natural manufactured by Takasago International Corporation, and L-perillaldehyde manufactured by Nippon Terpene Chemical Co., Ltd.

[0028] In the deodorizing rinse aid composition of the present invention, there are no particular limitations as long as the effects of the present invention are achieved, but from the viewpoint of deodorizing properties, component (B) is usually 0.005% by mass or more and 0.5% by mass or less, preferably 0.008% by mass or more and 0.3% by mass or less, more preferably 0.01% by mass or more and 0.2% by mass or less, and even more preferably 0.02% by mass or more and 0.15% by mass or less, based on the total amount of the deodorizing rinse aid composition. By 0.005% by mass or more, more sufficient deodorizing properties can be obtained, and by 0.5% by mass or less, more sufficient deodorizing properties can be obtained without any fragrance residue. (B) Component may be used alone or in combination of two or more types.

[0029] The deodorizing rinsing aid composition of the present invention contains water as component (C). As the water, tap water, softened water, purified water, RO water, ion-exchanged water, and distilled water can be used. As an example of tap water, tap water from Arakawa Ward, Tokyo (pH=7.6, total alkalinity (calcium carbonate equivalent) 40.5 mg / L, German hardness 2.3°DH (of which calcium hardness 1.7°DH, magnesium hardness 0.6°DH), chloride ions 21.9 mg / L, sodium and its compounds 15 mg / L, nitrate nitrogen and nitrite nitrogen 1.2 mg / L, fluorine and its compounds 0.1 mg / L, boron and its compounds 0.04 mg / L, total trihalomethanes 0.016 mg / L, residual chlorine 0.4 mg / L, organic matter (total organic carbon content) 0.7 mg / L) can be used. The water in (C) of this invention is the remainder of the total amount of component (A) and component (B), or the remainder of the total amount of component (A), component (B), and any other optional component.

[0030] The pH of the deodorizing rinsing aid composition of the present invention is not limited as long as it produces the desired effect, but is usually 6.0 or higher and 8.0 or lower, preferably 6.0 or higher and 7.0 or lower, and more preferably 6.5 or higher and 7.0 or lower.

[0031] The deodorizing rinsing aid composition of the present invention preferably further contains an organic solvent as component (D). Even without component (D), it exhibits good storage stability, but with component (D), it exhibits even better storage stability. Examples of organic solvents for component (D) include lower alcohols such as ethanol, propanol, and butanol; glycols such as ethylene glycol, propylene glycol, and butylene glycol; and polyols such as glycerin, polyglycerin, and sorbitol. From the viewpoint of safety if it remains on tableware, it is preferably a food additive, and from the viewpoint of storage stability, ethanol and glycerin are more preferred, and glycerin is even more preferred.

[0032] In the deodorizing rinsing aid composition of the present invention, there are no particular limitations as long as the effects of the present invention are achieved, but from the viewpoint of storage stability, component (D) is preferably 5% by mass or more and 25% by mass or less, more preferably 6% by mass or more and 20% by mass or less, and even more preferably 7% by mass or more and 18% by mass or less, based on the total amount of the rinsing aid composition. By having 5% by mass or more, storage stability at low temperatures can be obtained more sufficiently, and by having 25% by mass or less, a decrease in storage stability at high temperatures can be more sufficiently prevented. (D) Component may be used alone or in combination of two or more types.

[0033] The deodorizing rinsing aid composition of the present invention may further contain cyclodextrin as component (E) from the viewpoint of further enhancing its deodorizing properties. Cyclodextrin is a cyclic oligosaccharide in which multiple D-glucose molecules are linked in a ring. Examples of cyclodextrin as component (E) include α-cyclodextrin with 6 D-glucose molecules, β-cyclodextrin with 7 D-glucose molecules, γ-cyclodextrin with 8 D-glucose molecules, hydroxypropyl-β-cyclodextrin, methyl-β-cyclodextrin, and highly branched cyclodextrin. Among these, α-cyclodextrin and β-cyclodextrin are preferred. Furthermore, component (E) is preferably 0.03% by mass or more and 1% by mass or less, more preferably 0.05% by mass or more and 0.8% by mass or less, and even more preferably 0.05% by mass or more and 0.5% by mass or less, based on the total amount of the rinsing aid composition.

[0034] The deodorizing rinsing aid composition of the present invention may further contain, as needed, a metal corrosion inhibitor, a polymer dispersant, a thickener, a pH adjuster, an enzyme, a dye, and the like.

[0035] Examples of metal corrosion inhibitors include polycarboxylic acids such as short-chain dicarboxylic acids or tricarboxylic acids, phosphate esters, triazoles such as benzotriazole, toltriazole, or mercaptobenzothiazole, phosphonic acids such as 1-hydroxyethylidene-1,1-diphosphonic acid, adipic acid, glutaric acid, or succinic acid.

[0036] Examples of polymer dispersants include polyacrylic acid, polymaleic acid, polymethacrylic acid, acrylic acid type copolymers, maleic acid type copolymers, methacrylic acid type copolymers, and acrylic acid-sulfonic acid type monomer copolymers.

[0037] Examples of pH adjusting agents include acetic acid, hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, sodium hydroxide, potassium hydroxide, sodium acetate, or sodium carbonate.

[0038] Examples of enzymes include lipase, alkaline amylase, amylase, cellulase, protease, or pullulanase. Examples of pigments include natural pigments, synthetic pigments, or mixtures thereof.

[0039] Next, the method for washing tableware according to the present invention will be described. A method for washing dishes in an automatic dishwasher using the deodorizing rinsing aid composition of the present invention includes the steps of: diluting the automatic dishwasher detergent with water in the dishwasher's detergent tank and heating and maintaining it in the detergent tank; spraying the detergent from the detergent tank into the washing machine chamber to wash the dishes; and rinsing with a rinse solution containing the deodorizing rinsing aid composition of the present invention, performed in a series of steps.

[0040] It is preferable to prepare the cleaning solution so that the concentration of the detergent for automatic dishwashers is between 0.01% by mass and 0.3% by mass. Methods for preparing the cleaning solution by diluting the detergent composition with water include measuring the electrical conductivity of the aqueous solution and preparing the cleaning solution by quantitatively supplying the detergent composition. In the method of measuring electrical conductivity, the electrical conductivity of an aqueous solution of a detergent composition is proportional to the concentration of the dissolved detergent composition. By measuring the electrical conductivity of the aqueous solution in a cleaning solution tank containing the dissolved detergent composition, the concentration of the detergent is controlled. Typically, the electrical conductivity of the aqueous solution in the cleaning solution tank is measured, and if the electrical conductivity is low, the detergent composition is automatically supplied to the cleaning tank. The supply method is not particularly limited, but as a method for quantitatively supplying the detergent composition, a tube is connected to a device that links a pump, such as a peristaltic pump, with a timer, and the timer is set to supply a quantitative amount, and the detergent composition is supplied to the washing tank through the tube. By these methods, the washing solution, which has been diluted and prepared to a predetermined concentration of the detergent composition, is usually maintained in the washing solution tank at a temperature of 40°C or higher and 70°C or lower. The washing solution is sprayed onto the dishes in the washing machine for a period of 30 seconds or more and 120 seconds or less.

[0041] In the method for washing tableware of the present invention, the rinsing step involves using a rinsing solution containing the deodorizing rinsing aid composition, wherein the deodorizing rinsing aid composition of the present invention is diluted to a concentration of 0.00001% by mass or more and 0.1% by mass or less, preferably 0.00002% by mass or more and 0.07% by mass or less, and more preferably 0.00003% by mass or more and 0.05% by mass or less. In this case, the concentration of component (A) in the rinse solution is preferably 0.0000003% by mass or more and 0.005% by mass or less, more preferably 0.000001% by mass or more and 0.003% by mass, and even more preferably 0.000002% by mass or more and 0.002% by mass or less. If the total concentration of component (A) in the rinse solution is 0.0000003% by mass or more, drying properties and finish quality can be obtained more sufficiently, and if it exceeds 0.003% by mass, further improvement in drying properties and finish quality may not be expected, which may be uneconomical.

[0042] The rinsing solution can be used in the rinsing process of an automatic dishwasher to efficiently clean tableware, cooking utensils, etc., made of materials such as glass, ceramics, porcelain, metal, or plastic. In the cleaning method of the present invention, for example, the above-mentioned deodorizing rinsing aid composition is supplied to the rinsing pipe of the automatic dishwasher by a pump or the like, mixed with water (usually hot water) in the rinsing pipe, and the concentration of the deodorizing rinsing aid composition is adjusted to be 0.00001% by mass or more and 0.1% by mass or less to produce a rinsing solution, and a fixed amount of the rinsing solution is sprayed from the nozzle of the washing machine to perform rinsing. The temperature of the water used to prepare this rinse solution, and the temperature of the resulting rinse solution, are preferably 40°C or higher and 90°C, and more preferably 50°C or higher and 90°C or lower. A rinse solution temperature of 40°C or higher provides sufficient drying properties and finish, and no further improvement in drying properties or finish can be expected even if the temperature is raised above 90°C.

[0043] The amount of rinse solution sprayed by diluting the deodorizing rinsing aid composition of the present invention is not particularly limited, but in the rinsing process, the surface area of ​​the washing machine is 2500 cm². 2 It is preferable to rinse the dishes by spraying 1L or more and 3L or less of the rinsing solution per area. By spraying 1L or more of the rinsing solution per area, it is possible to thoroughly rinse the dishes, and by using 3L or less of the rinsing solution per area, it is preferable to meet the demand for water conservation by reducing the amount of water used in the rinsing process. The rinsing solution is sprayed onto the dishes inside the washing machine for 3 seconds or more and 20 seconds or less. After rinsing, the rinsing solution containing the deodorizing rinsing aid composition flows into the washing tank and is used as a diluting solvent for the detergent in the washing tank.

[0044] The water used to dilute the detergent composition and rinsing aid composition in an automatic dishwasher is not particularly limited and may be, for example, deionized water, distilled water, pure water, soft water, tap water, or artificial hard water adjusted with calcium chloride or the like to achieve an appropriate hardness. A more specific example is tap water from Arakawa Ward, Tokyo (pH=7.6, total alkalinity (calcium carbonate equivalent) 40.5 mg / L, German hardness 2.3°DH (of which calcium hardness 1.7°DH, magnesium hardness 0.6°DH), chloride ions 21.9 mg / L, sodium and its compounds 15 mg / L, nitrate nitrogen and nitrite nitrogen 1.2 mg / L, fluorine and its compounds 0.1 mg / L, boron and its compounds 0.04 mg / L, total trihalomethanes 0.016 mg / L, residual chlorine 0.4 mg / L, organic matter (total organic carbon) 0.7 mg / L).

[0045] The deodorizing rinsing aid composition of the present invention is suitable for rinsing and drying tableware and cooking utensils made of all materials such as glass, ceramics, porcelain, metal, and plastic, as well as for the crates on which tableware and cooking utensils are placed in automatic dishwashers. It can be used as a rinsing aid in household and commercial automatic dishwashers, but is particularly suitable for commercial automatic dishwashers used in hotels, restaurants, schools, hospitals, eateries, catering companies, company cafeterias, etc., especially water-saving automatic dishwashers. Here, "crate" refers to a plastic reusable container as defined in JIS Z1655. Major industries that utilize crates include Western-style daily food manufacturing (milk and dairy products, cakes, bread, etc.), Japanese-style daily food manufacturing (tofu, natto, pickles, etc.), alcoholic beverages and soft drinks (sake, beer, etc.), and agriculture and agricultural cooperatives (fruits and vegetables, etc.). [Examples]

[0046] The present invention will be described in detail below with reference to examples and comparative examples, but the present invention is not limited to the following examples. The components of the liquid deodorizing rinse aid compositions used in the deodorizing rinse aid compositions of the examples and comparative examples are shown in Tables 1 to 5 below. The numerical values ​​for the blending amounts shown in Tables 1 to 5 below represent the percentage (mass) of the pure content of each component relative to the deodorizing rinse aid composition, and "residue," which indicates the water content, represents the blending amount adjusted so that the total amount of the final prepared deodorizing rinse aid composition is 100% by mass. The liquid alkaline cleaning agent compositions were used to perform the measurements and evaluations described later. The measurement results and evaluation results are also shown in Tables 1 to 5 below.

[0047] (A) component A-1: Decaglycerin monolaurate (HLB 14.7) (manufactured by Sakamoto Pharmaceutical Co., Ltd., product name "SY-Glister ML-750 (trademark)") A-2: Decaglycerin monolaurate (HLB 16.0) (manufactured by Riken Vitamin Co., Ltd., product name "Poem J-0021 (trademark)") A-3: Triglycerin monocaprylate (HLB 16.1) (manufactured by Sakamoto Pharmaceutical Co., Ltd., product name "SY-Glister MCA-750 (trademark)") A-4: Decaglycerin monooleate (HLB 12.9) (manufactured by Sakamoto Pharmaceutical Co., Ltd., product name "SY-Glister MO-7S (trademark)")

[0048] (B) Component B-1: Perillaldehyde (manufactured by Nippon Terpene Chemical Co., Ltd., product name "L-Perillaldehyde") B-2: Perilla-derived compound-containing flavoring (manufactured by Toyotama Fragrance Co., Ltd., product name "Perilla Flavor OS") B-3: Lamiaceae plant extract (manufactured by Sabinsa Japan Corporation, product name "Rosemary Extract") B-4: Extract from Schisandraceae plants (manufactured by Ogi Pharmaceutical Co., Ltd., product name "Star Anise Oil")

[0049] (C) Component C-1: Ion-exchanged water

[0050] (D) Component D-1: Glycerin D-2: Ethanol

[0051] (E) Component E-1: α-cyclodextrin E-2: β-cyclodextrin

[0052] The compositions of each example were prepared by adding water (component C) to a mixing tank so that the total composition amounted to 100% by mass, then adding components (A), (B), and optionally (D) and (E) to the mixing tank, and thoroughly mixing and stirring.

[0053] Examples 1-36, Comparative Examples 1-3 Deodorizing rinse aid compositions were prepared as shown in Tables 1-5. Each deodorizing rinse aid composition was used to measure [specific parameters]. Tables 1-4 show the results for Examples 1-36, and Table 5 shows the results for Comparative Examples 1-3.

[0054] *1: pH measurement method A pH measuring composite electrode (Standard ToupH electrode 9615S-10D, manufactured by Horiba, Ltd.) was connected to a pH meter (pH / ion meter F-72, manufactured by Horiba, Ltd.), and the power was turned on. A saturated potassium chloride aqueous solution (3.33 mol / L) was used as the internal solution for the pH electrode. Next, 100 mL beakers were filled with pH 4.01 standard solution (phthalate standard solution), pH 6.86 (neutral phosphate standard solution), and pH 9.18 standard solution (borate standard solution), and the beakers were immersed in a 25°C constant temperature bath for 30 minutes. The pH measuring electrode was immersed in the standard solutions adjusted to constant temperature for 3 minutes, and calibration was performed in the order of pH 6.86 → pH 9.18 → pH 4.01. Each deodorizing rinsing aid composition was filled into a 100 mL beaker and adjusted to 25°C in a constant temperature bath. A pH measuring electrode was immersed in the temperature-adjusted sample for 3 minutes to measure the pH of the composition. *2: Drying test <Object to be washed> A glass cup with a diameter of 6 cm and a height of 11 cm was used as the object to be washed.

[0055] <Testing Method> A door-type automatic dishwasher (Hoshizaki Corporation automatic dishwasher: JWE-680AJ) was used to wash items in a washing rack, followed by washing, rinsing, and drying. Rinsing was performed at 80°C using a 0.01% by mass aqueous solution of a deodorizing rinsing aid composition. Artificial hard water, adjusted to a hardness of 3°DH using calcium chloride, was used for diluting the detergent and the deodorizing rinsing aid composition. After rinsing, the items were left at room temperature, and the time required for the water droplets and water film on the surface to disappear (drying time) was measured and evaluated according to the following criteria.

[0056] <Test Conditions> Washing temperature: 60℃ Washing time: 41 seconds Cleaning agent: Dish Power (manufactured by ADEKA Clean Aid Co., Ltd.) Detergent concentration: 0.1% by mass Rinse temperature: 80℃ Rinse time: 6 seconds Concentration of the deodorizing rinsing aid composition used in the test: 0.01% by mass

[0057] <Evaluation Criteria> ○: Drying time less than 500 seconds △: Drying time is between 500 seconds and less than 750 seconds. ×: Drying time is 750 seconds or longer. Based on this, ○ and △ were judged as practical.

[0058] *3: Finish quality test <Object to be washed> A glass cup with a diameter of 6 cm and a height of 11 cm was used as the object to be washed.

[0059] <Testing Method> A door-type automatic dishwasher (Hoshizaki Corporation automatic dishwasher: JWE-680AJ) was used to wash items in a washing rack, followed by washing, rinsing, and drying. Rinsing was performed at 80°C using a 0.01% by mass aqueous solution of a deodorizing rinsing aid composition. Artificial hard water, adjusted to a hardness of 3°DH using calcium chloride, was used for diluting the detergent and the deodorizing rinsing aid composition. After rinsing, the items were allowed to air dry at room temperature for 30 minutes. Then, they were held up to a fluorescent light, and the area of ​​spots generated on the surface of the items was visually assessed and evaluated according to the following criteria.

[0060] <Test Conditions> Washing temperature: 60℃ Washing time: 41 seconds Cleaning agent: Dish Power (manufactured by ADEKA Clean Aid Co., Ltd.) Detergent concentration: 0.1% by mass Rinse temperature: 80℃ Rinse time: 6 seconds Concentration of the deodorizing rinsing aid composition used in the test: 0.01% by mass

[0061] <Evaluation Criteria> ○: Spot occurrence area is 0% or more and less than 20% △: Spot occurrence area is 20% or more, but less than 40%. ×: Spot occurrence area is 40% or more, or 100% or less. Based on this, ○ and △ were judged as practical.

[0062] *4: Foam suppression test <Testing Method> A conveyor-type automatic dishwasher (manufactured by IHI Corporation: JWF-645) was used and operated under the following conditions. The foam height in the washing tank was measured after 15 minutes of operation and evaluated according to the following criteria. Artificial hard water, adjusted to a hardness of 3°DH using calcium chloride, was used for diluting the detergent and the deodorizing rinse aid composition. Detergent, deodorizing rinse aid composition, and dirt were added to the washing solution beforehand.

[0063] <Driving conditions> Washing temperature: 60℃ Cleaning agent: Dish Power (manufactured by ADEKA Clean Aid Co., Ltd.) Detergent concentration: 0.2% by mass Concentration of the deodorizing rinsing aid composition used in the test: 0.05% by mass Contamination (Skim milk (manufactured by Snow Brand Megmilk Co., Ltd.)): 0.05% by mass

[0064] <Evaluation Criteria> ○: Foam height is 0mm or more and less than 100mm above the liquid level in the washing tank. △: Foam height is 100mm or more and less than 200mm above the liquid level in the washing tank. ×: The foam height is 200 mm or more above the liquid level in the washing tank. Items with a △ or ○ rating were judged to be practical.

[0065] *5: Deodorizing test <Testing Method> 5g each of detergent and odor-causing components were placed in a door-type automatic dishwasher (Hoshizaki Corporation automatic dishwasher: JWE-680AJ). After running the machine several times without rinsing to ensure uniformity, rinsing was performed with a 0.01% by mass aqueous solution of the deodorizing rinsing aid composition while maintaining the rinsing temperature at 80°C. Artificial hard water, adjusted to a hardness of 3°DH using calcium chloride, was used for diluting the detergent and the deodorizing rinsing aid composition. After rinsing, the presence or absence of odors originating from the raw materials inside the dishwasher was evaluated by sensory testing.

[0066] <Test Conditions> Washing temperature: 60℃ Washing time: 41 seconds Cleaning agent: Dish Power (manufactured by ADEKA Clean Aid Co., Ltd.) Detergent concentration: 0.1% by mass Rinse temperature: 80℃ Rinse time: 6 seconds Concentration of the deodorizing rinsing aid composition used in the test: 0.01% by mass

[0067] <Odor components> A mixture of salted squid (manufactured by Momoya Co., Ltd.) and mayonnaise (manufactured by Kewpie Corporation) in a 1:1 mass ratio.

[0068] [Evaluation Method] Ten panelists evaluated the odor of the test water on a four-point scale. A lower score indicates better deodorizing effect. The total score from the ten panelists was used to evaluate the "odor persistence level." The criteria for evaluation are as follows:

[0069] [Evaluation Criteria] 1 point: There is absolutely no unpleasant odor or smell from the raw materials. Points 2: There is almost no unpleasant odor or odor from the raw materials. 3 points: There is a slight unpleasant odor or an odor originating from the raw materials. 4 points: The odor is severe, either due to a bad smell or an odor originating from the raw materials. [Odor retention level] ◎: Total score is less than 16 points. ○: Total score of 16 points or more, but less than 22 points. △: Total score is 22 points or more, but less than 28 points. ×: Total score of 28 points or more. ◎, ○, and △ were designated as having practical value.

[0070] *6: Storage stability test Each deodorizing rinsing aid composition was placed in a 100 mL transparent polypropylene container (100 mL) and stored in constant temperature baths set to -5°C, 25°C, and 40°C. After one month, the appearance was visually observed and evaluated according to the following criteria.

[0071] <Evaluation Criteria> ○: No precipitates were observed, indicating stability. △: Some precipitates are visible. ×: Precipitates are prominent and separation is observed. Items with a △ or ○ rating were judged to be practical.

[0072] [Table 1]

[0073] [Table 2]

[0074] Table 3

[0075] Table 4

[0076] Table 5

Claims

1. (A) Component: Polyglycerin fatty acid ester, (B) Component: Perillaldehyde in an amount of 0.008% by mass or more and 0.3% by mass or less. (C) Component: water A deodorizing rinsing aid composition containing the following:

2. (A) The deodorizing rinsing aid composition according to claim 1, wherein the component is a polyglycerin fatty acid ester, the number of carbon atoms in the fatty acid is 10 or more and 14 or less.

3. The deodorizing rinsing aid composition according to claim 1, comprising (E) cyclodextrin as component.

4. (A) The deodorizing rinsing aid composition according to claim 1, wherein the HLB value of the polyglycerin fatty acid ester, which is component (A), is 13 or more and 16 or less.

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