Liquid cleaning composition for hard surfaces

Abstract

To improve detergency and antifouling property.SOLUTION: The present invention relates to a liquid detergent composition for hard surfaces which comprises a nonionic surfactant (A) represented by a general formula (1), a nonionic surfactant (B) represented by a general formula (2), and water, in the liquid detergent composition, a mass ratio (A) / (B), or the mass ratio of the nonionic surfactant (A) to the nonionic surfactant (B) being 0.5 to 8.0. In the following formula, R1 is an alkyl group or an alkenyl group having 8 to 18 carbon atoms, R2 is an alkyl group or an alkenyl group having 8 to 24 carbon atoms, and A1O, A2O and A3O are oxyalkylene groups having 2 to 4 carbon atoms, n=6 to 40, m+p=10 to 40. R1-O-(A1O)n-H (1) [Formula 1]SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a liquid cleaning composition for hard surfaces. [Background technology]

[0002] Liquid detergent compositions using various surfactants have been proposed for cleaning hard surfaces such as pottery, porcelain, glass, metal, etc. For example, Patent Document 1 proposes a liquid detergent composition containing, as an essential component, a nonionic surfactant made of a polyoxyalkylene alkylamine having a Gardner dye of 3 or less. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-247952 A Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, Patent Document 1 describes the use of polyoxyalkylene alkylamine as a liquid detergent composition for hard surfaces, and specifically describes in the examples that excellent cleaning properties can be obtained by using it in combination with an anionic surfactant such as sodium polyoxyethylene alkyl sulfate. However, the liquid detergent composition described in Patent Document 1 has a problem of poor antifouling properties on hard surfaces.

[0005] An object of the present invention is to provide a liquid cleaning composition for hard surfaces that has cleaning and stain-resistant properties. [Means for solving the problem]

[0006] The liquid detergent composition for hard surfaces according to an embodiment of the present invention comprises a nonionic surfactant (A) represented by the following general formula (1), a nonionic surfactant (B) represented by the following general formula (2), and water, and the mass ratio (A) / (B) of the nonionic surfactant (A) to the nonionic surfactant (B) is 0.5 to 8.0. R 1 -O-(A 1 O) n -H (1) In general formula (1), R 1 represents an alkyl or alkenyl group having 8 to 18 carbon atoms; A 1 O represents an oxyalkylene group having 2 to 4 carbon atoms, and n represents the average number of moles of the oxyalkylene group added (a number of 6 to 40). [ka] In general formula (2), R 2 represents an alkyl or alkenyl group having 8 to 24 carbon atoms; A 2 O and A 3 Each O independently represents an oxyalkylene group having 2 to 4 carbon atoms; m and p represent the average number of moles of the oxyalkylene group added, where m+p is a number of 10 to 40. Effect of the Invention

[0007] According to an embodiment of the present invention, by using the above nonionic surfactant (A) and nonionic surfactant (B) in a content ratio (A) / (B) of 0.5 to 8.0, it is possible to achieve both cleaning properties and antifouling properties for hard surfaces. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The liquid detergent composition for hard surfaces according to this embodiment (hereinafter, sometimes referred to as the "detergent composition") contains a nonionic surfactant (A), a nonionic surfactant (B), and water.

[0009] [Nonionic surfactant (A)] The nonionic surfactant (A) is a surfactant represented by the following general formula (1). R 1 -O-(A 1 O) n -H (1)

[0010] In formula (1), R 1 represents an alkyl group or an alkenyl group having 8 to 18 carbon atoms. The number of carbon atoms in the alkyl group or alkenyl group is preferably 10 or more and 16 or less.

[0011] Examples of the alkyl group having 8 to 18 carbon atoms include linear or branched alkyl groups or cycloalkyl groups, such as n-octyl, isooctyl, 2-ethylhexyl, n-nonyl, isononyl, n-decyl, isodecyl, n-dodecyl, isododecyl, n-tridecyl, isotridecyl, n-tetradecyl, isotetradecyl, n-hexadecyl, isohexadecyl, and stearyl. Examples of the alkenyl group having 8 to 18 carbon atoms include linear or branched alkenyl groups or cycloalkenyl groups, such as octenyl, decenyl, undecenyl, dodecenyl, tetradecenyl, hexadecenyl, and octadecenyl. R 1 may consist of only one of these alkyl or alkenyl groups, or may be a mixture of two or more of them.

[0012] In formula (1), A 1 O represents an oxyalkylene group having 2 to 4 carbon atoms. These are derived from alkylene oxides, and examples thereof include an oxyethylene group derived from ethylene oxide, an oxypropylene group derived from propylene oxide, a 1,2-oxybutylene group derived from 1,2-butylene oxide, and a 2,3-oxybutylene group derived from 2,3-butylene oxide.

[0013] In formula (1), n ​​represents the average number of moles of oxyalkylene groups added, and is a number within the range of 6 to 40. When the average number of moles added, n, is 6 or more, the cleaning properties are excellent, and when it is 40 or less, the cleaning properties are excellent. The average number of moles added, n, is preferably 10 or more, more preferably 12 or more, and is preferably 35 or less.

[0014] (A 1 O) n In the above, multiple A 1 O may be the same or different. When O is different, the addition form may be random addition or block addition, and is not particularly limited.

[0015] (A 1 O) n It is preferable that the content of oxyethylene groups (EO) in the total oxyalkylene groups (AO) in the formula (1), (EO / AO), is 50% by mass or more and 100% by mass or less. 1 O) n is preferably mainly composed of oxyethylene groups, and may be composed only of oxyethylene groups, but preferably contains other oxyalkylene groups such as oxypropylene groups in order to suppress an increase in the viscosity of the cleaning composition. For example, (A 1 O) n The content of oxyethylene groups (EO / AO) may be 60 to 85% by mass, or the content of oxyethylene groups may be 60 to 85% by mass and the content of oxypropylene groups may be 15 to 40% by mass.

[0016] [Nonionic surfactant (B)] The nonionic surfactant (B) is a surfactant represented by the following general formula (2). [ka]

[0017] In formula (2), R 2represents an alkyl group or alkenyl group having 8 to 24 carbon atoms. The number of carbon atoms in the alkyl group or alkenyl group is preferably 10 or more, more preferably 12 or more, and is preferably 20 or less, more preferably 18 or less.

[0018] Examples of the alkyl group having 8 to 24 carbon atoms include linear or branched alkyl groups or cycloalkyl groups, such as n-octyl, isooctyl, 2-ethylhexyl, n-nonyl, isononyl, n-decyl, isodecyl, n-dodecyl, isododecyl, n-tridecyl, isotridecyl, n-tetradecyl, isotetradecyl, n-hexadecyl, isohexadecyl, stearyl, nonadecyl, eicosyl, docosyl, and tetracosyl. Examples of the alkenyl group having 8 to 24 carbon atoms include linear or branched alkenyl groups or cycloalkenyl groups, such as octenyl, decenyl, undecenyl, dodecenyl, tetradecenyl, hexadecenyl, octadecenyl, and docosenyl. R 2 may consist of only one of these alkyl or alkenyl groups, or may be a mixture of two or more of them.

[0019] In formula (2), A 2 O and A 3 Each O independently represents an oxyalkylene group having 2 to 4 carbon atoms. These are derived from alkylene oxides, and examples thereof include an oxyethylene group derived from ethylene oxide, an oxypropylene group derived from propylene oxide, a 1,2-oxybutylene group derived from 1,2-butylene oxide, and a 2,3-oxybutylene group derived from 2,3-butylene oxide.

[0020] In formula (2), m and p are A 2 O and A 3It represents the average number of moles of O added. m and p are not particularly limited as long as the sum of the two, m+p, is 10 to 40, but usually, each is preferably 5 or more. When m+p is 10 or more, the antifouling property can be improved. When m+p is 40 or less, the detergency can be improved. m+p is preferably 15 or more, and m+p is preferably 35 or less.

[0021] (A 2 O) m and (A 3 O) p In the above, multiple A 2 O and A 3 Each O may be the same or different. When different, the addition form may be random addition or block addition, and is not particularly limited.

[0022] (A 2 O) m and (A 3 O) p The total content of oxyethylene groups in the oxyalkylene groups (AO) in the formula (2) (EO / AO) is preferably 60% by mass or more and 100% by mass or less. 2 O) m and (A 3 O) p is preferably mainly composed of oxyethylene groups, and may be composed only of oxyethylene groups. More preferably, the content of oxyethylene groups in all oxyalkylene groups in formula (2) (EO / AO) is 75 to 100 mass%, and when an oxyalkylene group other than oxyethylene groups is used, oxypropylene groups are preferred, and the content of oxypropylene groups may be, for example, 0 to 25 mass%.

[0023] [Cationic surfactant (C)] The cleaning composition according to the present embodiment preferably further contains a cationic surfactant (C). By using the cationic surfactant (C) in addition to the nonionic surfactants (A) and (B), the antifouling properties can be further improved.

[0024] As the cationic surfactant (C), a fatty acid amidoamine such as stearyl dimethylaminopropylamide may be used, but it is preferable to use a quaternary ammonium salt.

[0025] The quaternary ammonium salt is not particularly limited, and examples thereof include alkyl trimethyl ammonium halides such as lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, and stearyl trimethyl ammonium chloride, or the corresponding methyl sulfates; dialkyl dimethyl ammonium halides such as didecyl dimethyl ammonium chloride and dioctyl dimethyl ammonium chloride, or the corresponding methyl sulfates; trialkyl benzyl ammonium halides such as lauryl dimethyl benzyl ammonium chloride and tributyl benzyl ammonium chloride, or the corresponding methyl sulfates; alkyl dimethyl ethyl ammonium ethyl sulfates such as octyl dimethyl ethyl ammonium ethyl sulfate, lauryl dimethyl ethyl ammonium ethyl sulfate, and palmityl dimethyl ethyl ammonium ethyl sulfate. These can be used alone or in combination of two or more.

[0026] Among these, as the quaternary ammonium salt, it is preferable to use at least one selected from alkyl trimethyl ammonium salts such as alkyl trimethyl ammonium halides and alkyl trimethyl ammonium methyl sulfates, dialkyl dimethyl ammonium salts such as dialkyl dimethyl ammonium halides and dialkyl dimethyl ammonium methyl sulfates, and trialkyl benzyl ammonium salts such as trialkyl benzyl ammonium halides and trialkyl benzyl ammonium methyl sulfates. As the quaternary ammonium salt, it is more preferable to use at least one selected from the group consisting of alkyl trimethyl ammonium salts and dialkyl dimethyl ammonium salts, and it is even more preferable to use at least one selected from the group consisting of alkyl trimethyl ammonium halides, alkyl trimethyl ammonium methyl sulfates, dialkyl dimethyl ammonium halides, and dialkyl dimethyl ammonium methyl sulfates. Here, the number of carbon atoms of the alkyl in the alkyl trimethyl ammonium salt is preferably 8 to 24, and the number of carbon atoms of the alkyl in the dialkyl dimethyl ammonium salt is preferably 8 to 24. The number of carbon atoms of the alkyl in the trialkyl benzyl ammonium salt is preferably 1 to 20.

[0027] [Cleaning agent composition] The cleaning composition according to this embodiment has a liquid form in which the nonionic surfactants (A) and (B), and preferably the cationic surfactant (C), are dissolved or dispersed in water. The content of water in the cleaning composition is not particularly limited, but is preferably 10 to 80 mass%, more preferably 20 to 70 mass%, and further preferably 30 to 60 mass%.

[0028] In the detergent composition, the mass ratio (A) / (B) of the nonionic surfactant (A) to the nonionic surfactant (B) is preferably 0.5 to 8.0. When the mass ratio (A) / (B) is 0.5 or more, the cleaning property can be improved. When the mass ratio (A) / (B) is 8.0 or less, the stain-proofing property can be improved. The mass ratio (A) / (B) is preferably 0.7 or more, more preferably 1.0 or more. The mass ratio (A) / (B) is preferably 6.0 or less, more preferably 4.0 or less.

[0029] The content of the nonionic surfactant (A) in the detergent composition is not particularly limited, but is preferably 10 to 50 mass%, more preferably 15 to 40 mass%, and the content of the nonionic surfactant (B) in the detergent composition is not particularly limited, but is preferably 1 to 30 mass%, more preferably 3 to 20 mass%.

[0030] When the cationic surfactant (C) is blended, the content of the cationic surfactant (C) in the cleansing composition is not particularly limited, but is preferably from 5 to 30 mass %, and more preferably from 10 to 25 mass %.

[0031] The detergent composition may contain anionic surfactants, amphoteric surfactants, and nonionic surfactants other than those described above as surfactants other than those described above, as long as the effects of the present embodiment are not impaired. In addition to the above components, the detergent composition may contain various additives that are usually contained in liquid detergent compositions for hard surfaces, as long as the effects of the present embodiment are not impaired. Examples of such additives include fragrances, chelating agents, builders, organic solvents, pH adjusters, preservatives, colorants, antioxidants, and ultraviolet absorbers.

[0032] As the fragrance, a water-soluble fragrance or an oil-soluble fragrance can be used, and the oil-soluble fragrance can be solubilized in water by the above-mentioned nonionic surfactants (A) and (B). In one embodiment, when a fragrance is contained, the content of the fragrance in the detergent composition is not particularly limited, and may be, for example, 0.01 to 20 mass %, or 1 to 10 mass %.

[0033] The cleaning composition according to this embodiment can be prepared by adding the nonionic surfactants (A) and (B), the cationic surfactant (C) as a preferred component, water, and other optional components, and stirring and mixing them by a known method.

[0034] The cleaning agent composition according to the present embodiment is used for cleaning hard surfaces. Examples of hard surfaces include inorganic solid surfaces such as pottery, porcelain, glass, enamel, tiles, ceramics, aluminum, and stainless steel. Specifically, the cleaning agent composition is preferably used for cleaning hard surfaces in toilets, kitchens, bathrooms, washstands, and the like.

[0035] The cleaning method using the detergent composition according to this embodiment is not particularly limited, and examples thereof include (1) impregnating a sponge or the like with the detergent composition, scrubbing the surface to be cleaned with the sponge, and then rinsing with water, (2) spraying or applying the detergent composition to the surface to be cleaned, and then rinsing with water, or (3) spraying or applying the detergent composition to the surface to be cleaned, and then scrubbing with a sponge or the like, and then rinsing with water.

[0036] In one embodiment, the above-mentioned cleaning agent composition is preferably used as a flush toilet cleaning agent, more preferably stored in a discharge container and used by discharging the flush toilet cleaning agent from the discharge container onto the toilet bowl surface during flushing, and even more preferably used as an on-tank type flush toilet cleaning agent. An on-tank type flush toilet cleaning agent is configured such that the flush toilet cleaning agent stored in a discharge container is placed on the water tank of a flush toilet and the cleaning agent is discharged into the water tank together with flushing water, and exerts cleaning power against human and urine stains on the toilet bowl surface by flushing, i.e., by flushing the toilet water. Furthermore, the cleaning agent composition according to this embodiment can clean the toilet bowl surface and impart antifouling properties to the toilet bowl surface. EXAMPLES

[0037] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0038] Details of the surfactants used in the examples and comparative examples are as follows. [Nonionic surfactant (A)] A-1: A compound represented by the above formula (1) (polyoxyalkylene decyl ether; in formula (1), n ​​= 13, EO / AO = 63% by mass) obtained by randomly adding 9 moles of ethylene oxide and 4 moles of propylene oxide to 1 mole of C10 alcohol (product name: Decanol, manufactured by KH Neochem Co., Ltd.). A-2: A compound represented by the above formula (1) (polyoxyalkylene lauryl ether; in formula (1), n ​​= 17, EO / AO = 78 mass%), obtained by randomly adding 14 moles of ethylene oxide and 3 moles of propylene oxide to 1 mole of C12 alcohol (product name: Kalcol 2098, manufactured by Kao Corporation). A-3: A compound represented by the above formula (1) (polyoxyalkylene tridecyl ether; in formula (1), n ​​= 35, EO / AO = 82% by mass) obtained by randomly adding 30 moles of ethylene oxide and 5 moles of propylene oxide to 1 mole of C13 alcohol (product name: Tridecanol, manufactured by KH Neochem Co., Ltd.).

[0039] [Nonionic surfactant (B)] B-1: A compound represented by the above formula (2) (tallow amine ethylene oxide adduct; in formula (2), m+p=25, EO / AO=100% by mass) obtained by adding 25 moles of ethylene oxide to 1 mole of tallow amine (product name: Nissan Amine ABT-2, manufactured by NOF Corporation). B-2: A compound represented by the above formula (2) (coconut amine alkylene oxide adduct; in formula (2), m+p=35, EO / AO=82% by mass) was obtained by randomly adding 30 moles of ethylene oxide and 5 moles of propylene oxide to 1 mole of coconut amine (trade name: Nissan Amine FB, manufactured by NOF Corporation). B-3: A compound represented by the above formula (2) (laurylamine ethylene oxide adduct; in formula (2), m+p=10, EO / AO=100% by mass) obtained by adding 10 moles of ethylene oxide to 1 mole of laurylamine (product name: Nissan Amine BB, manufactured by NOF Corporation).

[0040] [Cationic surfactant (C)] C-1: Didecyldimethylammonium chloride (product name: Catiogen DDM-PG, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) C-2: Cetyltrimethylammonium chloride (product name: Catiogen TMP, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)

[0041] [Anionic surfactants] D-1: Sodium polyoxyethylene lauryl ether sulfate (product name: Hitenol 227L, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) [Amphoteric surfactants] D-2: Lauryl dimethylamine oxide (product name: Amogene AOL, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)

[0042] [Other nonionic surfactants] E-1: Polyoxyethylene glyceryl isostearate (product name: Noigen GIS-125, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) E-2: Polyoxyethylene sorbitan monooleate (product name: Solgen TW-80, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) E-3: Polyoxyethylene polyoxypropylene block polymer (product name: Epane 450, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)

[0043] The cleaning compositions of Examples 1 to 11 and Comparative Examples 1 to 8 were obtained by mixing the raw materials according to the formulation (mass%) shown in the following Table 1. In the formulation in Table 1, the components other than water are expressed as solid contents, and the blended amount of water is expressed as the proportion of water in the entire cleaning composition, including the amount of water contained in the components other than water.

[0044] The obtained cleaning compositions of Examples 1 to 11 and Comparative Examples 1 to 8 were evaluated for cleaning properties and antifouling properties by the following methods.

[0045] [Washability] 20 mg of artificial feces was applied to a slide glass, and the slide glass was immersed in 300 mL of a 1% by mass aqueous solution of the detergent composition for 30 seconds. Next, the slide glass was rinsed with running water at 1 L / min. Thereafter, the artificial feces remaining on the slide glass was photographed with a digital camera, and the area ratio of the residue after washing to the applied area of ​​the artificial feces before washing was measured using the obtained image, and evaluated according to the following criteria. A: No residue B: Residue less than 10% C:Residue 10% or more

[0046] [Anti-stain properties] 0.1 g of the detergent composition was diluted 20,000 times with water to obtain 2 L of diluted aqueous solution. A glass plate (10 cm x 10 cm) was immersed in the diluted aqueous solution for 10 seconds, stood at 90° and left at 20°C for 2 hours, and then dried. Next, 10 g of artificial feces was applied to the surface of the glass plate, and then rinsed with running water for 10 seconds. The surface of the glass plate was then visually inspected and evaluated according to the following criteria. A: After rinsing with running water at 1L / min, no artificial feces remains on the glass plate. B: After rinsing with running water at 3 L / min, no artificial feces remains on the surface of the glass plate. C: After rinsing with running water at 3 L / min, artificial feces remains on the surface of the glass plate.

[0047] The composition of the artificial stool used to evaluate cleaning and stain resistance was 50% by mass of rice miso, 5% by mass of xanthan gum, 2.3% by mass of oleic acid, and 42.7% by mass of water, which was mixed together and adjusted to pH 7 with sodium hydroxide.

[0048] [Table 1]

[0049] The results are shown in Table 1. In Comparative Examples 1 and 2, the polyoxyalkylene alkylamine type nonionic surfactant (B) and the cationic surfactant (C) were used in combination, but the polyoxyalkylene alkyl ether type nonionic surfactant (A) was not blended, and therefore the cleaning properties and antifouling properties were poor. In Comparative Examples 3 and 5, the nonionic surfactants (A) and (B) were used in combination, but the mass ratio (A) / (B) of the two was too large, and therefore the antifouling properties were poor. In Comparative Example 4, the mass ratio (A) / (B) was too small, and therefore the cleaning properties were poor. Comparative Examples 6 to 8 are examples in which the polyoxyalkylene alkylamine type nonionic surfactant (B) was used in combination with other alkylene oxide-added type nonionic surfactants, and therefore the cleaning properties were poor.

[0050] In contrast, in Examples 1 to 11, in which nonionic surfactants (A) and (B) were used in combination and the mass ratio (A) / (B) of the two was within the range of 0.5 to 8.0, excellent cleaning properties were obtained as well as antifouling properties. In particular, in Examples 1 to 6 and 9 to 11, in which a cationic surfactant (C) was blended in addition to the nonionic surfactants (A) and (B), excellent effects were obtained in both cleaning properties and antifouling properties.

[0051] Although several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their omissions, substitutions, modifications, etc. are included in the scope and gist of the invention as well as the invention and its equivalents described in the claims.

Claims

1. A liquid cleaning agent composition for hard surfaces, which is a cleaning agent for flush toilets, comprises a nonionic surfactant (A) represented by the following general formula (1), a nonionic surfactant (B) represented by the following general formula (2), and water, wherein the mass ratio (A) / (B) of the nonionic surfactant (A) to the nonionic surfactant (B) is 0.5 to 8.0: R １ -O-(A １ O) ｎ -H (1) In general formula (1), R １ represents an alkyl or alkenyl group having 8 to 18 carbon atoms; A １ O represents an oxyalkylene group having 2 to 4 carbon atoms, and n represents the average number of moles of the oxyalkylene groups added (which is a number of 6 to 40). 【Chemistry 1】 In general formula (2), R ２ represents an alkyl or alkenyl group having 8 to 24 carbon atoms; A ２ O and A ３ Each O independently represents an oxyalkylene group having 2 to 4 carbon atoms; m and p represent the average number of moles of the oxyalkylene group added, where m+p is a number of 10 to 40.

2. The liquid cleaning composition for hard surfaces according to claim 1, further comprising a cationic surfactant (C).

3. 3. The liquid cleaning composition for hard surfaces according to claim 2, wherein the cationic surfactant (C) is a quaternary ammonium salt.

4. The liquid cleaning composition for hard surfaces according to any one of claims 1 to 3, which is contained in a dispensing container.

5. The liquid cleaning composition for hard surfaces according to any one of claims 1 to 4, which is a cleaning agent for on-tank type flush toilets.

Images