JP2018024723A - Liquid detergent composition for hard surface and method for washing tableware using the same, and method for washing medical appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition for hard surface having high versatility, and to provide a washing method using the same.SOLUTION: A liquid detergent composition for hard surface contains the following (A) to (G) components, and has a pH at 25°C of 8.0-10.0. (A) 0.1-5 mass% of a non-ionic surface active agent having a could point of 1 mass% aqueous solution of 20°C or lower and is formed of polyoxyalkylene alkyl ether or a mixture of the polyoxyalkylene alkyl ether and polyalkylene glycol, (B) 0.5-10 mass% of a non-ionic surface active agent having a could point of 1 mass% aqueous solution of 35°C or lower and is formed of polyoxyethylene polyoxypropylene decylether, (C) 10-30 mass% of alkanolamine, (D) 0.1-7 mass% of enzyme, (E) 7.5-22.5 mass% of n-hexyl glycoside having the following general formula (1): CHOG, in formula (1), G is a monosaccaride residue, and n is 1 to 5, (F) a calcium additive, and (G) water.SELECTED DRAWING: None

Description

  The present invention is an extremely versatile liquid for hard surfaces, which has excellent storage stability and enzyme activity stability, and can provide excellent detergency without variation even for dirt such as starches, fats and proteins, and medical devices. The present invention relates to a cleaning composition, a cleaning method for dishes using the same, and a cleaning method for medical instruments.

  Conventionally, as a liquid detergent composition for hard surfaces used for automatic dishwashers, as shown in Patent Document 1, a mixture of a plurality of nonionic surfactants, enzymes, and amino alcohols is known. ing. This product has a combination of a plurality of nonionic surfactants and is excellent in low-foaming properties and oil stain detergency. In addition, it can be applied to various types of stains including oil stains by blending enzyme and amino alcohol. It can be supported.

  However, this product has insufficient alkalinity due to amino alcohol, and a satisfactory detergency cannot be obtained against protein soil. Further, since the solubilizer is not blended and the stability of the system cannot be ensured, there is a problem that the blending must be unbalanced.

  On the other hand, a detergent composition has been proposed in which an enzyme is blended in order to enhance the detergency against starch stains and the stability of enzyme activity is taken into consideration (see Patent Document 2). However, this product has a problem that, as a result of considering improvement of the stability of the system, the amount of the nonionic surfactant is remarkably reduced, and the detergency against oil stains is insufficient. Moreover, since an enzyme, aminocarboxylic acid, organic sulfonic acid, etc. are blended simultaneously, there is a concern that aminocarboxylic acid, organic sulfonic acid, etc. may adversely affect enzyme activity.

  Moreover, as a cleaning composition used for medical instruments, what is shown, for example in patent document 3 is proposed. This is said to be able to wash in a short time the contamination of body fluids such as blood and excrement adhering to a medical device by blending alkanolamine and an inorganic alkaline agent in combination. However, some medical devices use materials that are easily corroded by alkali, such as aluminum, and there is a risk that medical devices may be damaged if they are repeatedly washed with an alkaline cleaning agent having an inorganic alkaline agent. have.

  Further, among medical instruments, for example, a cleaning composition suitable for cleaning various medical endoscopes has been proposed, for example, in Patent Document 4. In order to prevent damage due to repeated cleaning as described above, an enzyme such as a protease and a nonionic surfactant mainly composed of a polyoxyethylene-polyoxypropylene block polymer are blended as cleaning components. However, there is a problem that satisfactory detergency cannot be obtained with respect to dirt due to starch or oil and fat or blood dirt.

Japanese Patent Laid-Open No. 3-126798 JP 2014-9355 A JP 2009-144070 A JP 2001-31999 A

  The present invention has been made in view of such circumstances, and is excellent in storage stability and enzyme activity stability, and does not vary against dish stains such as starch, fats and oils, and stains on medical instruments. A highly versatile liquid cleaning composition for hard surfaces that has excellent detergency, low foaming properties and low corrosiveness to aluminum, and a cleaning method for dishes using the same, and a cleaning method for medical devices. The purpose is to provide.

This invention is made | formed in view of such a situation, Comprising: The liquid cleaning composition for hard surfaces containing the following (A)-(G) component, Comprising: The said (A)-(E) component is included. The hard surface liquid detergent composition is contained in the following ratio with respect to the entire hard surface liquid detergent composition, and the pH at 25 ° C. of the hard surface liquid detergent composition is set in the range of 8.0 to 10.0. The liquid detergent composition is the first gist.
(A) The cloud point of 1 mass% aqueous solution is 20 degrees C or less, and 0.1-5 mass% of nonionic surfactants which consist of a mixture of polyoxyalkylene alkyl ether or polyoxyalkylene alkyl ether and polyalkylene glycol.
(B) 0.5-10 mass% of nonionic surfactant which consists of polyoxyethylene polyoxypropylene decyl ether whose cloud point of 1 mass% aqueous solution is 35 degrees C or less.
(C) Alkanolamine 10-30 mass%.
(D) 0.1-7 mass% enzyme.
(E) n-hexyl glycoside having the following general formula (1): 7.5 to 22.5% by mass.
C ₆ H ₁₃ OG _n (1)
(However, G is a monosaccharide residue and n is 1-5.)
(F) Calcium additive.
(G) Water.

  Of the liquid detergent composition for hard surface of the first aspect, the acrylic acid polymer and salt thereof, maleic acid polymer and salt thereof, acrylic acid-maleic acid copolymer and Salt thereof, poly-α-hydroxyacrylic acid and salt thereof, acrylic acid-maleic acid-polyethylene glycol copolymer and salt thereof, olefin-maleic acid copolymer and salt thereof, acrylic acid-sulfonic acid copolymer And a liquid detergent composition for hard surfaces according to the first or second aspect, comprising a polymer electrolyte polymer consisting of at least one selected from the group consisting of salts thereof and the salt thereof , (C) component alkanolamine is triethanolamine or a mixture of triethanolamine and monoethanolamine The gist.

  In the hard surface liquid detergent composition according to any one of the first to third aspects, the enzyme (D) is at least one selected from the group consisting of amylase, protease, lipase, and cellulase. There is a fourth aspect, and among the hard surface liquid detergent composition according to any one of the first to fourth aspects, further, as component (I), ethyl alcohol, propylene glycol, ethylene glycol monoethyl ether A fifth gist includes a water-soluble solvent comprising at least one selected from the group consisting of diethylene glycol monoethyl ether, dipropylene glycol methyl ether, ethylene glycol, polyethylene glycol, and glycerin.

  Furthermore, the liquid cleaning composition for hard surfaces according to any one of the first to fifth aspects is diluted with water to contain 0.01 to 5% by mass of the liquid cleaning composition for hard surfaces with respect to the whole. And a dishwashing method for washing dishes with an automatic dishwashing machine using the above-described cleaning liquid. The sixth aspect of the present invention is the liquid cleaning composition for hard surfaces according to any one of the first to fifth aspects. The product is diluted with water to obtain a cleaning liquid containing 0.01 to 5% by mass of the liquid detergent composition for hard surfaces, and the cleaning liquid is used before the dishes are cleaned with an automatic dishwasher. A seventh aspect of the present invention is a tableware cleaning method for performing at least one of pre-cleaning and pre-immersion cleaning.

  Furthermore, the liquid cleaning composition for hard surface according to any one of the first to fifth aspects is diluted with water to obtain a cleaning liquid containing 1 to 20% by mass of the liquid cleaning composition for hard surface with respect to the whole, A tableware cleaning method in which at least one of rinsing and automatic dishwashing is performed after spraying the cleaning solution directly onto tableware is an eighth aspect, and any one of the above first to fifth aspects The hard surface liquid cleaning composition of the gist is diluted with water to obtain a cleaning liquid containing 0.01 to 5% by mass of the hard surface liquid cleaning composition with respect to the whole, and a medical instrument is prepared using the cleaning liquid. A ninth aspect is a method for cleaning a medical instrument to be cleaned.

  That is, the present inventor has conducted extensive research in order to obtain a highly versatile liquid cleaning composition for hard surfaces. As a result, the liquid detergent composition for hard surfaces was subjected to specific nonionic surfactants (A) and (B), alkanolamine (C), enzyme (D), and specific n-hexyl glycoside (E ), Calcium additive (F) and water (G) as essential components, and the nonionic surfactant (A), (B), alkanolamine (C), enzyme (D) and specific When n-hexylglycoside (E) is contained in a specific ratio with respect to the entire liquid detergent composition for hard surface, and the pH at 25 ° C. is set in the range of 8.0 to 10.0, Excellent detergency with no variation against tableware and medical device stains, low foaming, low corrosiveness to aluminum, excellent storage stability and enzyme activity stability This The found, we have reached the present invention.

  As mentioned above, the liquid detergent composition for hard surfaces of the present invention comprises specific nonionic surfactants (A), (B), alkanolamine (C), enzyme (D), and specific n -Hexyl glycoside (E), calcium additive (F), and water (G) are contained as essential components, and the nonionic surfactants (A), (B ), Alkanolamine (C), enzyme (D) and specific n-hexyl glycoside (E) are blended in specific ratios, and the pH at 25 ° C. is set in the range of 8.0 to 10.0. Yes. For this reason, turbidity does not occur even when stored for a long period of time, and not only excellent in low foaming properties, but also various medical treatments such as blood against various dish stains such as starch, fats and oils, proteins, etc. It is possible to exhibit excellent cleaning properties against dirt on instruments. Moreover, it can be repeatedly used with peace of mind for tableware and medical instruments made of materials that are easily corroded, such as aluminum, and is extremely versatile.

  Among the liquid detergent composition for hard surfaces of the present invention, as the component (H), an acrylic acid polymer and salt thereof, a maleic acid polymer and salt thereof, an acrylic acid-maleic acid copolymer and salt thereof , Poly-α-hydroxyacrylic acid and its salts, acrylic acid-maleic acid-polyethylene glycol copolymer and its salt, olefin-maleic acid copolymer and its salt, acrylic acid-sulfonic acid copolymer and its In the case of containing a polyelectrolyte polymer composed of at least one selected from the group consisting of salts, it is possible to effectively prevent the reattachment of dirt, and to further improve the detergency.

  Further, when the alkanolamine as the component (C) is triethanolamine or a mixture of triethanolamine and monoethanolamine, the storage stability is further improved.

  When the enzyme of component (D) is at least one selected from the group consisting of amylase, protease, lipase, and cellulase, it is possible to further improve the cleanability of tableware stains and medical device stains.

  Further, as component (I), at least one selected from the group consisting of ethyl alcohol, propylene glycol, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, dipropylene glycol methyl ether, ethylene glycol, polyethylene glycol, and glycerin is contained. In the case of having a water-soluble solvent, the enzyme activity is stabilized and the detergency can be further improved.

  And the liquid detergent composition for hard surfaces of this invention is diluted with water, it is set as the washing | cleaning liquid which contains 0.01-5 mass% of liquid detergent compositions for hard surfaces with respect to the whole, Tableware is used for the said washing | cleaning liquid. According to the tableware washing method using an automatic dishwasher, the balance between the washing effect and the rinsing property is excellent, and the washing can be repeated repeatedly in a short time.

  Furthermore, the liquid cleaning composition for hard surfaces of the present invention is diluted with water to obtain a cleaning liquid containing 0.01 to 5% by mass of the liquid cleaning composition for hard surfaces with respect to the whole. According to the tableware cleaning method that performs at least one of pre-cleaning and pre-immersion cleaning using the above cleaning solution before cleaning with a cleaning machine, a sufficient cleaning effect can be expected even on denatured protein stains, etc. Excellent balance with rinsing properties.

  Moreover, the liquid detergent composition for hard surfaces of the present invention is diluted with water to obtain a detergent liquid containing 1 to 20% by mass of the liquid detergent composition for hard surfaces, and the detergent liquid is directly applied to tableware. According to the tableware cleaning method in which at least one of rinsing and automatic dishwashing is performed after spraying, the balance between the cleaning effect and the rinsing property is excellent, and repeated cleaning can be performed in a short time.

  And the liquid detergent composition for hard surfaces of this invention is diluted with water, it is set as the washing | cleaning liquid which contains 0.01-5 mass% of liquid detergent compositions for hard surfaces with respect to the whole, and a medical device is said washing | cleaning liquid. According to the cleaning method for a medical instrument that is cleaned using the method, blood stains and the like attached to the medical instrument can be removed in a short time. Moreover, even if it wash | cleans repeatedly, a medical device is not damaged.

  In the present invention, the “hard surface” means a surface of an object having a hardness that can maintain a predetermined shape, and does not include, for example, the surface of a textile product. The elastic resin surface is included.

  Next, embodiments of the present invention will be described in detail.

  First, the liquid detergent composition for hard surfaces of the present invention (hereinafter referred to as “the present detergent composition”) includes specific nonionic surfactants (A) and (B), an alkanolamine (C), An enzyme (D), a specific n-hexylglycoside (E), a calcium additive (F) and water (G) are contained as essential components, and the above nonionic Surfactant (A) and (B), alkanolamine (C), enzyme (D), specific n-hexyl glycoside (E) is set to contain in a specific ratio, and is a liquid detergent for hard surfaces The pH at 25 ° C. of the composition is set within a specific range.

  The nonionic surfactant used in the present cleaning composition of the present invention is blended for the purpose of improving detergency, prevention of oil reattachment to the object to be cleaned, and foam suppression, and is shown below. The component (A) and the component (B) are used in combination so as to have a specific blending amount.

  That is, the nonionic surfactant as the component (A) has a cloud point of 1% by weight aqueous solution of 20 ° C. or less, and the polyoxyalkylene alkyl ether is used alone, or the polyoxyalkylene alkyl ether and the polyalkylene glycol are used. A mixture is used. In addition, when the above component (A) exceeds a cloud point of 20 ° C., it is advantageous in terms of cleaning properties and anti-reattachment properties, but it is like a dishwasher or a washer disinfector for cleaning medical instruments. When used in a machine that sprays and cleans a cleaning liquid, there is a tendency that it is impossible to suppress a decrease in spray pressure due to foaming. In particular, when washing a medical device with a lot of protein stains, washing is often performed at a temperature of around 40 ° C. in order to prevent heat denaturation of the protein. Control becomes difficult.

  Examples of the polyoxyalkylene alkyl ether include polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene polyoxybutylene alkyl ether, polyoxyethylene polyoxypropylene polyoxybutylene alkyl ether, and the like. Two or more types can be used in combination. Further, the form of addition polymerization of polyoxyalkylene may be a random or block copolymer of two or three kinds of monomers.

  And it is preferable that carbon number of the alkyl group of the said polyoxyalkylene alkyl ether is 8-22, It is more preferable that it is 10-20, It is further more preferable that it is 12-18. In the present invention, it is considered that the use of the surfactant as described above exhibits the detergency and foam suppression.

  The polyalkylene glycol that can be used by mixing with the polyoxyalkylene alkyl ether is a polymer in which a hydrocarbon is ether-bonded, and examples thereof include polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and the like. Or two or more types can be used in combination. Moreover, these 2 or more random or block copolymers may be sufficient. The molecular weight of the polyalkylene glycol is not particularly limited, but those having a molecular weight of 500 to 100,000 are preferably used from the viewpoint of dispersion uniformity.

  The blending amount of the nonionic surfactant as the component (A) is 0.1 to 5% by mass, more preferably 0.5 to 3% by mass with respect to the entire cleaning composition. is there. If the amount is too large, not only the balance as a whole will be worsened, but also the cleaning performance due to the synergistic effect with other components tends to be saturated and disadvantageous in terms of cost, and if it is too small, the cleaning performance and foam suppression are observed. This is because there is a tendency that the properties cannot be fully exhibited.

  Next, polyoxyethylene polyoxypropylene decyl ether whose cloud point of 1 mass% aqueous solution is 35 degrees C or less is used for the nonionic surfactant which is (B) component. In addition, when the component (B) has a cloud point exceeding 35 ° C., it is advantageous in that the nonionic surfactant of the component (A) is solubilized in the detergent composition, Or when using with the machine which inject | cleans and wash | cleans washing liquid like a washer disinfector which wash | cleans a medical device, the tendency to reduce the foam suppression property of the nonionic surfactant of (A) component is seen.

  The compounding quantity of the nonionic surfactant which is such (B) component is 0.5-10 mass% with respect to this cleaning composition whole, More preferably, it is 1-7 mass%. If the amount is too large, not only the overall balance tends to be worsened, but also the cleaning performance due to the synergistic effect with other components tends to be saturated, which tends to be disadvantageous in terms of cost. This is because there is a tendency that the foamability and the solubilizing ability cannot be fully exhibited.

  The blending ratio of the nonionic surfactants (A) and (B) is preferably in the range of (A) / (B) = 10/1 to 1/100, and preferably 3/1 to 1/30. Is more preferable, and it is still more preferable that it is 1/1 to 1/15.

  The (C) component alkanolamine used in the present cleaning composition is a compound having a hydroxy group and an amino group in the alkane skeleton, such as monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine. , Tripropanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N-ethyldiethanolamine, N-ethylethanolamine, N-methyldiethanolamine, N-methylethanolamine and the like. Of these, triethanolamine, monoethanolamine, monoisopropanolamine, N-ethyldiethanolamine, N-methyldiethanolamine, and N-methylethanolamine are preferably used. From the viewpoint of ensuring storage stability and protein washing performance, a mixture of triethanolamine, monoethanolamine, triethanolamine and monoethanolamine is preferably used. These may be used alone or in appropriate combination of two or more.

  The compounding quantity of the said (C) component is set in the range of 10-30 mass% with respect to this cleaning agent composition whole. More preferably, it is made into the range of 15-25 mass%. That is, if the blending amount of the component (C) is too small, there is a tendency that the cleaning performance of protein stains is inferior. This is because the storage stability tends to be lowered and it is difficult to obtain a synergistic effect with other components.

  As the enzyme of component (D) used in the present detergent composition, various enzymes for detergents can be used. Examples of such an enzyme include amylase, protease, lipase, cellulase, and glucanase. These enzymes may be used alone or in combination of two or more. The component (D) is used to obtain a cleaning effect on specific soil that cannot be easily supplemented by other cleaning agent components by its enzyme activity. From the viewpoint of cleaning effect and cost, amylase, protease, lipase, cellulase Is preferably used.

  It is necessary to set the blending amount of the component (D) within a range of 0.1 to 7% by mass with respect to the entire cleaning composition. More preferably, it is made into the range of 0.5-5 mass%. That is, if the blending amount of component (D) is too small, improvement in cleaning performance is poor due to the balance with other components. Conversely, if the blending amount of component (D) is too large, a synergistic effect with other components is obtained. This is not only difficult to be made but also disadvantageous in terms of cost.

The n-hexyl glycoside of component (E) used in the present cleaning composition has the following general formula (1), preferably hexyl glucoside.
C ₆ H ₁₃ OG _n (1)
(However, G is a monosaccharide residue and n is 1-5.)

  The component (E), n-hexyl glycoside, is blended in the detergent composition for the purpose of stably solubilizing the nonionic surfactants (A) and (B). These may be used alone or in combination of a plurality of types.

  It is necessary to set the blending amount of the component (E) within a range of 7.5 to 22.5% by mass with respect to the entire cleaning composition. More preferably, it is made into the range of 11-19 mass%. That is, if the amount of component (E) is too small, the amount that can solubilize component (A) and component (B) tends to decrease. Conversely, if the amount of component (E) is too large, This is because the solubilizing ability becomes saturated, which is disadvantageous in terms of cost.

  The (F) component calcium additive used in the present cleaning composition is blended in the cleaning composition for the purpose of stably maintaining the activity of the (D) component enzyme. Examples thereof include calcium chloride, calcium formate, calcium acetate, calcium lactate, calcium phosphate, calcium citrate, calcium gluconate, calcium sulfate, calcium hydroxide and the like. Of these, calcium chloride is preferably used from the viewpoint of solubility in the detergent composition. These may be used alone or in combination of two or more.

  The blending amount of the component (F) is not particularly specified, but it is preferably set in the range of 0.05 to 1.0% by mass, more preferably 0.8% with respect to the entire cleaning composition. The range is 1 to 0.5% by mass. That is, if the blending amount of the component (F) is too small, the enzyme activity stabilizing ability is not sufficiently exhibited. Conversely, if the blending amount of the component (F) is too large, the balance of the entire cleaning agent is lost and stored. This is because the stability becomes unstable.

  Examples of the water of component (G) used in the present cleaning composition include tap water, soft water, ion exchange water, pure water, and purified water, preferably soft water, ion exchange water, and pure water. These may be used alone or in combination of two or more. In addition, the water of (G) component is the sum total of the water contained in the form of the crystal water and aqueous solution originating in each component which comprises this cleaning composition, and the water added from the outside, and this cleaning composition It mix | blends so that the whole may be 100 mass%.

  In addition to the above components (A) to (G), the present cleaning composition contains, as optional components, a specific polymer electrolyte polymer (H) described below, a specific water-soluble solvent (I), and the like. be able to.

  The specific polyelectrolyte polymer as the component (H) includes acrylic acid polymers and salts thereof, maleic acid polymers and salts thereof, acrylic acid-maleic acid copolymers and salts thereof, and poly-α-hydroxyacrylic. Selected from the group consisting of acids and salts thereof, acrylic acid-maleic acid-polyethylene glycol copolymers and salts thereof, olefin-maleic acid copolymers and salts thereof, acrylic acid-sulfonic acid copolymers and salts thereof It is composed of at least one, and is blended for the purpose of improving the sequestering ability, threshold effect, water-insoluble substance dispersion performance, anti-redeposition property and cleaning performance. In addition, examples of these salts include sodium salts, potassium salts, ammonium salts, ethanolamine salts, and the like. Of these, sodium salts and potassium salts are preferably used. Furthermore, in terms of sequestering ability, anti-redeposition property and cleaning performance, sodium polymaleate, sodium polyacrylate, sodium salt of acrylic acid-maleic acid copolymer, sodium poly-α-hydroxyacrylate, acrylic acid A maleic acid-polyethylene glycol copolymer, an olefin-maleic acid copolymer sodium salt, and an acrylic acid-sulfonic acid copolymer sodium salt are preferably used. These may be used alone or in combination of two or more. When component (H) is blended into this cleaning composition, cleaning performance in pre-wash cleaning and pre-soak cleaning, or after spraying directly on the object to be washed, rinsed or washed in an automatic dishwasher Improvement can be expected. In addition, like "acrylic acid-sulfonic acid type copolymer", those with "~" are the monomers specified there (in this example, acrylic acid monomer and sulfonic acid monomer). It means not only a copolymer consisting of only these but also a copolymer containing monomers other than these two types of monomers. However, ˜ “system” is not attached, but it does not mean that a copolymer containing a monomer other than the monomers specified therein is excluded.

  The maleic acid polymer, the acrylic acid polymer, and the salt of the copolymer of maleic acid and acrylic acid can be selected from commercially available products. For example, when selecting sodium polymaleate, In addition, sodium polymaleate can be prepared by adding sodium hydroxide (neutralization reaction). Therefore, when sodium hydroxide and potassium hydroxide are added, a mixture of sodium polymaleate and potassium polymaleate can be obtained in an arbitrary ratio.

  The average molecular weight of the maleic acid polymer, acrylic acid polymer and salts thereof is preferably 600 to 15,000, particularly preferably 1,000 to 15,000. The average molecular weight of the copolymer of maleic acid and acrylic acid and the salt thereof is preferably 1,000 to 100,000, particularly preferably 3,000 to 80,000. . The polymer and copolymer salts may be all neutralized salts or partially neutralized salts.

  When blending the polymer electrolyte polymer as the component (H), the blending amount is preferably set within a range of 0.2 to 10% by mass with respect to the entire cleaning composition. That is, when the blending amount of the (H) component is too small, there is a tendency that improvement of the cleaning performance by using the (H) component is not obtained, and conversely, when the blending amount of the (H) component is too large, This is because the overall balance of the agent composition is deteriorated, storage stability is lowered, and a synergistic effect with other components cannot be obtained any more. In addition, when the blending amount of the component (H) is set in the range of 0.5 to 7% by mass with respect to the entire cleaning composition, the metal ion sealing ability and the threshold, particularly in balance with other components. This is preferable because it is excellent in effect, water-insoluble substance dispersion performance, recontamination prevention effect and cleaning performance.

  The specific water-soluble solvent as the component (I) is selected from the group consisting of ethyl alcohol, propylene glycol, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, dipropylene glycol methyl ether, ethylene glycol, polyethylene glycol, and glycerin. It contains at least one selected and is used to further improve the storage stability of the present cleaning composition. In particular, when a protease is blended as an enzyme of the component (D) in the cleaning composition, it is preferable to use the component (I) in order to suppress the action of the protease degrading other enzymes. Examples of such water-soluble solvents include alcohol solvents and glycol ether solvents.

  Examples of the alcohol solvent include ethyl alcohol, isopropanol, 3-methoxybutanol, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, and 1,3-butylene. Examples include glycol, 1,4-butanediol, 1,5-pentanediol, hexylene glycol, and glycerin. Examples of the glycol ether solvent include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl. Ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, polyethylene group Examples include coal monomethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol dimethyl ether, tripropylene glycol monomethyl ether, and 3-methyl-3-methoxybutanol. . These may be used alone or in combination of two or more.

  Among them, when at least one selected from the group consisting of ethyl alcohol, propylene glycol, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, dipropylene glycol methyl ether, ethylene glycol, polyethylene glycol and glycerin is used, storage stability is obtained. Further, the enzyme activity stability is particularly excellent, which is preferable.

  When the water-soluble solvent as the component (I) is blended, it is preferably set within a range of 3 to 9% by mass with respect to the entire cleaning composition. That is, when the blending amount of the component (F) is too small, the effect of improving the storage stability and enzyme activity stability due to blending of the component (F) tends to be difficult to be obtained. This is because if the amount is too large, the enzyme activity stability cannot be further improved, the balance of the entire cleaning composition is impaired, and the storage stability of the present cleaning composition may be deteriorated. Furthermore, it is more preferable to set the water-soluble solvent as the component (I) in the range of 4 to 8% by mass with respect to the entire cleaning composition because it is advantageous in improving enzyme stability and cost.

  In addition to the above-mentioned components (H) and (I), the present cleaning composition includes, as further optional components, pH adjusters, dyes, fragrances, metal corrosion inhibitors, bactericides, deodorants, antistatic agents, etc. May be used.

  Examples of the pH adjuster include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, silicates such as sodium silicate and potassium silicate, carbonates such as sodium carbonate and potassium carbonate, and the like. . Of these, alkali metal hydroxide salts such as sodium hydroxide and potassium hydroxide are preferably used from the viewpoint of storage stability and cost. In order to adjust the pH of the present detergent composition, the pH of the present detergent composition (stock solution) [JIS (Z-8802 “pH measurement method], hereinafter the same)” is 8.0 to 25 ° C. An appropriate amount is appropriately added so as to be 10.0 In the case where the pH of the cleaning composition is 8.0 to 10.0, these pH adjusting agents may not be used.

  That is, this detergent composition can be expected to have higher detergency as the pH is higher, but if the pH is too high, it tends to adversely affect the environment and safety, 10.0 or less because aluminum tableware, cooking utensils, and medical devices are easily eroded and the effect on enzyme activity stability is increased. And preferably, it is 9.5 or less. Moreover, it is set to 8.0 or more from the point that detergency declines with it when pH becomes low, More preferably, it is 8.5 or more.

  Thus, this detergent composition contains nonionic surfactants (A) and (B), alkanolamine (C), enzyme (D), and specific n-hexyl glycoside (E) in specific ratios. In addition, it contains calcium additive (F) and water (G) as essential components, and if necessary, optional components such as a specific polymer electrolyte polymer (H) and a specific water-soluble solvent (I) Is a composition having a pH at 25 ° C. set in the range of 8.0 to 10.0.

  Therefore, the present detergent composition can exhibit excellent detergency without variation against dirt such as starch, fats and oils, and dirt on medical devices, and is excellent in storage stability and enzyme activity stability. It is extremely versatile. And since it is low-foaming property and its corrosiveness with respect to aluminum is low, the stain | pollution | contamination of tableware and various medical instruments can be wash | cleaned repeatedly in a short time. And even if it uses repeatedly, it does not do big damage to the tableware, medical equipment, etc. in which aluminum is used.

  For this reason, this cleaning composition is suitable for the washing | cleaning use of the tableware which has hard surfaces, such as glass, ceramics, a metal, and a plastics. Moreover, it can be used not only for tableware, but also for automatic cleaning applications for cleaning appliances and containers in various manufacturing factories and processing factory buildings, plastic containers used for distribution, and the like. Furthermore, it can be preferably used for washing hard surfaces such as tiles and floors in food factories and food processing factories, washing containers such as glass bottles for beverages, and washing metal surfaces. In particular, it is suitable for use in automatic dishwashers in hotels, restaurants, schools, hospitals, restaurants, catering companies, company cafeterias and the like. From these facts, the “tableware” in the present invention is intended to include objects to be cleaned related to various food production / processing as described above, in addition to the literally “tableware”.

  In addition, the present detergent composition is suitable for cleaning various medical instruments. The above-mentioned medical device is washed by using a washer-disinfector that automatically performs from washing to drying, or by immersing the medical device in a cleaning solution diluted to a predetermined concentration, and in a stationary state. It can be carried out by bringing the water into contact with the cleaning liquid under dynamic conditions by generating a water flow with a circulation device or by applying vibrations with an ultrasonic generator. The cleaning in the immersion still state is different from the cleaning method in which the cleaning liquid is positively moved, but does not exclude manual cleaning using a sponge or a brush.

  The present detergent composition can be used as it is without being diluted, but by using a cleaning liquid diluted to a predetermined concentration with water, washing of dishes with an automatic dishwasher, automatic dishwasher Particularly excellent cleaning effects can be exhibited in the pre-cleaning step, the pre-immersion cleaning, the direct spray cleaning, or the cleaning of the medical device as the pre-cleaning step.

  The concentration of the cleaning solution obtained by diluting the above cleaning composition with water is determined by the pre-washing process or pre-soak washing as the pre-washing process of the dishware in the automatic dishwashing machine, the washing in the automatic dishwashing machine, For cleaning, the cleaning composition is preferably contained in an amount of 0.01 to 5% by mass based on the whole. Moreover, it is preferable that 1-20 mass% of this cleaning composition is similarly contained for the washing | cleaning by spraying directly on tableware. That is, if the content of the cleaning composition is too small, the desired effect tends to be difficult to obtain, and conversely if too much, the rinsing properties are reduced.

  In addition, “pre-soak cleaning” means that the object to be cleaned is immersed in a cleaning solution before the main cleaning step in which machine washing is performed using an automatic dishwasher or the like. , A sink, a mobile sink, a three-dimensional immersion tank, a preliminary immersion tank provided in a lift-up type automatic dishwasher, and the like. Since this cleaning composition has low foaming properties, after the object to be cleaned is immersed in the cleaning liquid, the object to be cleaned in the cleaning liquid is rubbed with a sponge, etc. You may wash | clean with a washing machine, and after immersing a to-be-washed object in washing | cleaning liquid, you may make it wash | clean the picked-up to-be-washed object as it is with an automatic dishwasher.

  Next, examples will be described together with comparative examples.

[Examples 1-17, Comparative Examples 1-10]
Prepare cleaning compositions having the compositions shown in Tables 1 to 3 below (the unit of the numerical values in each table is% by mass), washability 1: washing with an automatic dishwasher, washability 2: prewash washing , Detergent 3: Cleaning by direct spraying, Detergency 4: Cleaning of medical equipment, storage stability, enzyme activity stability, low foaming property, corrosiveness to aluminum, and pH (stock solution, 25 ° C) were evaluated for nine items. . The results are shown in Tables 4 to 6 below. In Tables 1 to 3 below, the details of the components used and their effective pure content (%) are as follows, and the numerical values in the table are shown as they are as they are. is there. Moreover, the test method and evaluation method of each item are as showing below.

[Component (A)]
Nonionic surfactant (A-1):
Mixture of polyoxyalkylene alkyl ether and polyalkylene glycol (manufactured by Dow Chemical Co., Ltd., Dowfax DF-147 Defoamer, cloud point of 18% by mass in 1% by weight aqueous solution)
Nonionic surfactant (A-2):
Polyoxyethylene alkyl ether (manufactured by Sanyo Kasei Kogyo Co., Ltd., Cedran SF-506, cloud point of 17 ° C. in 1% by mass aqueous solution)

[(B) component]
Nonionic surfactant (B-1):
Polyoxyalkylene branched decyl ether (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Neugen LF40X, cloud point of 20 ° C. in 1% by mass aqueous solution)
Nonionic surfactant (B-2):
Polyoxyalkylene branched decyl ether (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Neugen LF41X, cloud point of 28 ° C. in 1% by weight aqueous solution)
Nonionic surfactant (B-3):
Polyoxyalkylene branched decyl ether (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Neugen LF42X, cloud point of 34 ° C. in 1% by weight aqueous solution)

[Nonionic surfactants other than components (A) and (B)]
・ Nonionic surfactant α:
Polyoxyethylene polyoxypropylene block polymer (pull-lock type block polymer) (Daiichi Kogyo Seiyaku Co., Ltd., Epan 740)
EO / PO mass ratio = 0.67, average molecular weight: 3,300
Cloud point 60 ° C in 1% by weight aqueous solution
・ Nonionic surfactant β:
Polyoxyethylene polyoxypropylene block polymer (reverse pluronic block polymer) (manufactured by BASF, Pluronic RPE 1740)
EO / PO mass ratio = 0.67, average molecular weight: 2,800
Cloud point 50 ° C in 1% by weight aqueous solution

[Component (C)]
・ Alkanolamine (1):
Triethanolamine (Nippon Shokubai Co., Ltd., Triethanolamine S)
・ Alkanolamine (2):
Monoethanolamine (manufactured by Nippon Shokubai Co., Ltd., monoethanolamine)

[Component (D)]
・ Enzyme (1):
α-Amylase (Novozymes Japan, Stainzyme Plus 12 L)
・ Enzyme (2):
α-Amylase (Novozymes Japan, Termamyl Ultra 300L)
・ Enzyme (3):
Protease (manufactured by Novozymes Japan, Liquanase Evity 3.5XL)
・ Enzyme (4):
Lipase (Novozymes Japan, Lipex 100L)
・ Enzyme (5):
Cellulase (manufactured by Novozymes Japan, Celluclean 5000L)

[(E) component]
N-hexyl glycoside:
Hexyl glucoside (manufactured by Lion Specialty Chemicals, AG6206, 75% active ingredient)

[Solubilizers other than component (E)]
-Sodium xylene sulfonate (manufactured by Huntsman, ELTESOL SX-93, active ingredient amount 93%)

[(F) component]
・ Calcium additive:
Calcium chloride (74.3% as anhydrous) (Central Glass, granular)

[(G) component]
・ Ion exchange water

[(H) component]
・ Polyelectrolyte polymer (1):
Polyacrylic acid [average molecular weight = 4,500 (pure 48%)] (Rohm and Haas, Acusol 445)
・ Polyelectrolyte polymer (2):
Sodium polymaleate (average molecular weight = 1,800) (prototype)
・ Polyelectrolyte polymer (3):
Acrylic acid-maleic acid copolymer (average molecular weight = 70,000) (manufactured by BASF, Socaran CP-45G)
-Polyelectrolyte polymer (4):
Sodium poly-α-hydroxyacrylate [average molecular weight = 12,000 (pure content 30%)] (Nippon Peroxide, Pale Black 1200)
・ Polyelectrolyte polymer (5):
Acrylic acid-maleic acid-polyethylene glycol copolymer [average molecular weight = 8,000 (pure 50%)] (manufactured by Nippon Shokubai Co., Ltd., PX1E-LK100)
-Polyelectrolyte polymer (6):
Sodium salt of olefin-maleic acid copolymer [average molecular weight = 12,000 (pure content 25%)] (manufactured by BASF Corp., Socharan CP9)
-Polyelectrolyte polymer (7):
Sodium salt of acrylic acid-sulfonic acid copolymer (acrylic acid, 2-hydroxy-3-allyloxypropanesulfonic acid copolymer sodium salt, 50% pure) (Nippon Shokubai Co., Ltd., AQUALIC GL246)

[Component (I)]
・ Water-soluble solvent (1):
Propylene glycol (Asahi Glass Co., Ltd.)
・ Water-soluble solvent (2):
Ethyl alcohol (manufactured by Nippon Alcohol Sales Co., Ltd.
・ Water-soluble solvent (3):
Ethylene glycol monoethyl ether (Nippon Shokubai Co., Ltd., Seafosol MG)
・ Water-soluble solvent (4):
Diethylene glycol monoethyl ether (Nippon Shokubai Co., Ltd., Seafosol DG)
・ Water-soluble solvent (5):
Dipropylene glycol monomethyl ether (manufactured by Nippon Emulsifier Co., Ltd., methyl propylene diglycol)
・ Water-soluble solvent (6):
Ethylene glycol (manufactured by Nippon Shokubai Co., Ltd.)
・ Water-soluble solvent (7):
Polyethylene glycol (Daiichi Kogyo Seiyaku Co., Ltd., PEG200)
Water-soluble solvent (8):
Glycerin (manufactured by Sakamoto Pharmaceutical Co., Ltd., purified glycerin)

[Polymer electrolyte polymer neutralizing agent]
Potassium hydroxide (content 48%) (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.)

[PH adjuster]
Citric acid hydrate (purified citric acid, crystals, manufactured by Fuso Chemical Industries)

[Potassium hydroxide]
Potassium hydroxide (99% content) (granular caustic soda, manufactured by Asahi Glass Co., Ltd.)

[Washability 1: Washing with an automatic dishwasher]
・ Test method The prepared detergent composition is diluted with tap water so as to have the following detergent concentration, and is then introduced into a commercial automatic dishwasher (DW-DR61, manufactured by Sanyo Electric Co., Ltd.). I drove under the driving conditions. Then, the following objects to be cleaned were washed as a set of 10 porcelain dishes or teacups, and the cleaning performance was evaluated according to the evaluation criteria described later. Three types of soil were prepared as rice cake (starch) soil, beef tallow (oil / fat) soil, and egg yolk (protein) soil, and each soil was evaluated for cleaning.
* Operating condition Detergent concentration: 0.20% by mass
Washing temperature: 45 ° C
Rinsing temperature: 80 ° C
Cleaning course: Standard cleaning cycle (cleaning: 30 seconds, rinsing: 8 seconds)
Tap water hardness: 50-60 ppm (as CaCO ₃ )
Starch dirt: 40 g of cooked rice is put in 400 g of hot water, boiled at 90-100 ° C. for 20 minutes, then the supernatant is attached to a teacup at 0.6 g / piece, dried at room temperature for 30 minutes and washed What was immersed at 40 degreeC for 10 minutes immediately before was used.
Fat and oil stain: A porcelain dish having a diameter of 25 cm and purified beef tallow attached to 4 g / sheet was used.
Protein stain: A chicken egg yolk was attached to a porcelain dish having a diameter of 25 cm so as to be 4 g / sheet, dried at room temperature for 1 hour, and immersed in hot water at 40 ° C. for 30 minutes immediately before washing.
・ Evaluation criteria For starch stains, apply iodine solution to the washed tea bowl, for fat stains, apply oil red liquid to the washed porcelain dish, and visually check protein stains as follows. The degree of dirt removal was judged.
A: 90% or more of dirt is removed.
○: Dirt removal of 70% or more and less than 90%.
Δ: Dirt removal of 50% or more and less than 70%.
X: Dirt removal of less than 50%.

[Detergency 2: Pre-cleaning]
・ Test method “Soil” “type” and how to apply “dirt” to tableware were performed in the same way as the washing performance evaluation of washing with an automatic dishwasher. Five dishes with stains were diluted with tap water and immersed in the prepared cleaning solution under the following conditions. Then, it wash | cleaned by the following method, without putting a detergent in a commercial automatic tableware washing machine (DW-DR61, Sanyo Electric Co., Ltd.), and evaluated by the following evaluation criteria.
* Immersion condition Detergent concentration: 0.10% by mass
Immersion temperature: 25 ° C
Immersion time: 10 minutes * Washing machine operating conditions Cleaning temperature: 45 ° C
Rinsing temperature: 80 ° C
Cleaning course: Standard cleaning cycle (cleaning: 30 seconds, rinsing: 8 seconds)
Tap water hardness: 50-60 ppm (as CaCO ₃ )
・ Evaluation criteria For starch stains, apply iodine solution to the washed tea bowl, for fat stains, apply oil red liquid to the washed porcelain dish, and visually check protein stains as follows. The degree of dirt removal was judged.
A: 90% or more of dirt is removed.
○: Dirt removal of 70% or more and less than 90%.
Δ: Dirt removal of 50% or more and less than 70%.
X: Dirt removal of less than 50%.

[Cleanability 3: Cleaning by direct spraying]
・ Test method “Soil” “type” and how to apply “dirt” to tableware were performed in the same way as the washing performance evaluation of washing with an automatic dishwasher. Dilute the cleaning composition with tap water to make a cleaning solution with a concentration of 10% by mass, put it in a spray bottle, spray it evenly on 5 pieces of dirty dishes, leave them at room temperature for 1 hour, and then use them for commercial automatic dishes. A washing machine (DW-DR61, manufactured by Sanyo Electric Co., Ltd.) was used for washing with the following method without adding a detergent, and evaluated according to the following evaluation criteria.
* Washing machine operating conditions Cleaning temperature: 45 ° C
Rinsing temperature: 80 ° C
Cleaning course: Standard cleaning cycle (cleaning: 30 seconds, rinsing: 8 seconds)
Tap water hardness: 50-60 ppm (as CaCO ₃ )
・ Evaluation criteria For starch stains, apply iodine solution to the washed tea bowl, for fat stains, apply oil red liquid to the washed porcelain dish, and visually check protein stains as follows. The degree of dirt removal was judged.
A: 90% or more of dirt is removed.
○: Dirt removal of 70% or more and less than 90%.
Δ: Dirt removal of 50% or more and less than 70%.
X: Dirt removal of less than 50%.

[Cleanability 4: Cleaning medical equipment]
Test method One washing indicator EVIT manufactured by Amtec was immersed in a washing solution prepared by diluting with tap water under the following conditions, rinsed with running water, and evaluated by visual judgment.
* Immersion condition Detergent concentration: 0.30% by mass
Immersion temperature: 45 ° C
Immersion time: 15 minutes / Evaluation criteria (A light one of the two types of dirt was targeted.)
A: 95% or more of dirt is removed.
○: Dirt removal of 90% or more and less than 95%.
Δ: Dirt removal of 80% or more and less than 90%.
X: Dirt removal of less than 80%.

[Storage stability]
Test Method The prepared cleaning composition (stock solution) was placed in a 100 ml glass bottle, placed in a constant temperature bath (SLI-4S, manufactured by Sunaka Rika Kogyo Co., Ltd.) in an atmosphere of 40 ° C., and stored in that state for one month. . Similarly, the prepared detergent composition (stock solution) is placed in a 100 ml glass bottle and placed in an atmosphere programmed at -5 ° C to 5 ° C by an incubator (MTH-2400, manufactured by SANYO). Stored for 1 month. And the external appearance was observed visually and evaluated by the following evaluation criteria.
・ Evaluation criteria ◎: After 1 month, there was no change in appearance such as turbidity, separation and precipitation.
○: After 1 month, slight changes in appearance such as turbidity, separation and precipitation were observed.
Δ: After 2 weeks, slight changes in appearance such as turbidity, separation or precipitation were observed.
X: Immediately after blending, there was a change in appearance such as turbidity / separation or precipitation.

[Enzyme activity stability]
Test Method Regarding α-amylase and protease, the prepared detergent composition (stock solution) was stored at 40 ° C. for 2 weeks, and the enzyme activity value in the detergent composition was determined. Regarding lipase and cellulase, the prepared detergent composition (stock solution) was stored at room temperature for 4 weeks, and the residual rate was calculated from the enzyme activity value in the detergent composition, and evaluated as follows. However, the enzyme activity value was determined as follows.
-Determination of α-amylase activity value A tablet (Fadebas tablet) containing starch and an indicator that develops color by degradation of starch was added to the diluted detergent aqueous solution, and the concentration of the dye after a predetermined time was measured.
-Determination of protease activity value The diluted detergent aqueous solution and the casein solution were mixed, and after adding a trichloroacetic acid solution after a predetermined time, the Folin-Ciocalten reagent was added dropwise to measure the color of the solution.
-Determination of lipase activity value A solution in which olive oil was emulsified was prepared, and after adding a diluted detergent aqueous solution and stirring for a predetermined time, a few drops of phenolphthalein indicator were added and titrated with a sodium hydroxide solution.
-Determination of cellulase activity value The CMC solution was added to the diluted detergent aqueous solution and heated, and after a predetermined time, the dinitrosalicylic acid reagent was added and the color of the solution after heating at 100 ° C for a predetermined time was measured.
-Evaluation criteria A: Residual rate is 70% or more.
○: Residual rate is 40% or more and less than 70%.
Δ: Residual rate of 25% or more and less than 40%.
X: Remaining rate is less than 25%.

[Low foam]
・ Test method 30g of egg (whole egg) thoroughly mixed with detergent composition diluted with tap water is put into a commercial automatic dishwasher (DW-DR61, manufactured by Sanyo Electric Co., Ltd.) under the following operating conditions. Drove. And the foaming of the washing | cleaning liquid was evaluated by the evaluation criteria of a postscript by visual observation.
* Operating condition Detergent concentration: 0.10% by mass
Washing temperature: 40 ° C
Cleaning course: Standard cleaning cycle (cleaning: 43 seconds, rinsing: 15 seconds)
Tap water hardness: 50-60 mg / L (as CaCO ₃ )
-Evaluation criteria A: Bubbles are less than 50 mm from the liquid level during operation, and the bubbles disappear immediately after the operation.
○: Bubbles are less than 50 mm from the liquid level during operation, and the bubbles disappear within 1 minute after the operation.
Δ: Foam is 50 mm or more from the liquid level during operation, but the foam disappears within 1 minute after the operation.
X: Regardless of the height of the foam during operation, the foam remains without disappearing even after 1 minute from the end of the operation.

[Corrosiveness to aluminum]
Test Method A detergent composition diluted to the following concentration with tap water was put into a commercial automatic dishwasher (DW-DR61, manufactured by Sanyo Electric Co., Ltd.) and operated under the following operating conditions. The aluminum test pieces (1.0 × 20 × 100 mm) were washed as a set of three, and the appearance of the aluminum test pieces was evaluated based on the evaluation criteria.
* Operating condition Detergent concentration: 0.20% by mass
Washing temperature: 45 ° C
Rinsing temperature: 80 ° C
Cleaning course: Standard cleaning cycle (cleaning: 30 seconds, rinsing: 8 seconds)
Number of washings: 100 times / Evaluation criteria A: Almost no change
○: Slightly whitened or browned.
X: There is discoloration in whitening, brown or black, or the mass per one test piece is reduced by 0.01 g or more.

[PH (stock solution, 25 ° C)]
Measurement Method Using a pH meter (pH METER F-12, manufactured by HORIBA, Ltd.), the pH value at 25 ° C. of the stock solution of the prepared cleaning composition was measured according to JIS Z-8802: 1984.
A: 8.0 or more and 10.0 or less.
X: Less than 8.0 or more than 10.0.

  As described above, the present cleaning composition has an excellent detergency that does not vary even for tableware to which dirt such as starch, fats and oils adheres, and to medical equipment to which dirt such as blood adheres. It can be seen that Moreover, it turns out that it is a thing with high versatility that it is excellent in storage stability and enzyme activity stability, it is low-foaming property, and the corrosivity with respect to aluminum is low.

  The liquid detergent composition for hard surfaces of the present invention is suitable for cleaning dishes such as starch, oils and fats, proteins and the like and medical instruments attached with stains such as blood.

Claims (9)

It is the liquid detergent composition for hard surfaces containing the following (A)-(G) component, Comprising: The said (A)-(E) component is the following ratio with respect to the whole liquid detergent composition for hard surfaces. A hard surface liquid detergent composition, wherein the hard surface liquid detergent composition has a pH at 25 ° C. of 8.0 to 10.0.
(A) The cloud point of 1 mass% aqueous solution is 20 degrees C or less, and 0.1-5 mass% of nonionic surfactants which consist of a mixture of polyoxyalkylene alkyl ether or polyoxyalkylene alkyl ether and polyalkylene glycol.
(B) 0.5-10 mass% of nonionic surfactant which consists of polyoxyethylene polyoxypropylene decyl ether whose cloud point of 1 mass% aqueous solution is 35 degrees C or less.
(C) Alkanolamine 10-30 mass%.
(D) 0.1-7 mass% enzyme.
(E) n-hexyl glycoside having the following general formula (1): 7.5 to 22.5% by mass.
C ₆ H ₁₃ OG _n (1)
(However, G is a monosaccharide residue and n is 1-5.)
(F) Calcium additive.
(G) Water.   Further, as the component (H), an acrylic acid polymer and its salt, a maleic acid polymer and its salt, an acrylic acid-maleic acid copolymer and its salt, poly-α-hydroxyacrylic acid and its salt, acrylic acid— Polymer comprising at least one selected from the group consisting of maleic acid-polyethylene glycol copolymer and salt thereof, olefin-maleic acid copolymer and salt thereof, acrylic acid-sulfonic acid copolymer and salt thereof The liquid detergent composition for hard surfaces according to claim 1, comprising an electrolyte polymer.   The liquid detergent composition for hard surfaces according to claim 1 or 2, wherein the alkanolamine of component (C) is triethanolamine or a mixture of triethanolamine and monoethanolamine.   The liquid detergent composition for hard surfaces according to any one of claims 1 to 3, wherein the enzyme of component (D) is at least one selected from the group consisting of amylase, protease, lipase and cellulase.   Further, as component (I), at least one selected from the group consisting of ethyl alcohol, propylene glycol, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, dipropylene glycol methyl ether, ethylene glycol, polyethylene glycol, and glycerin is contained. The liquid detergent composition for hard surfaces as described in any one of Claims 1-4 which has the water-soluble solvent to do.   A cleaning liquid comprising the hard surface liquid detergent composition according to any one of claims 1 to 5 diluted with water to contain the hard surface liquid detergent composition in an amount of 0.01 to 5% by mass relative to the whole. And a dishwashing method, wherein the dishware is washed with an automatic dishwasher using the cleaning liquid.   A cleaning liquid comprising the hard surface liquid detergent composition according to any one of claims 1 to 5 diluted with water to contain the hard surface liquid detergent composition in an amount of 0.01 to 5% by mass relative to the whole. And a tableware cleaning method, wherein at least one of pre-cleaning and pre-immersion cleaning is performed using the cleaning liquid before the tableware is cleaned by an automatic dishwasher.   The liquid cleaning composition for hard surface according to any one of claims 1 to 5 is diluted with water to obtain a cleaning liquid containing 1 to 20% by mass of the liquid cleaning composition for hard surface with respect to the whole, A method for cleaning dishes, comprising: spraying the cleaning liquid directly on the dishes and then performing at least one of rinsing and washing with an automatic dishwasher.   A cleaning liquid comprising the hard surface liquid detergent composition according to any one of claims 1 to 5 diluted with water to contain the hard surface liquid detergent composition in an amount of 0.01 to 5% by mass relative to the whole. A method for cleaning a medical instrument, wherein the medical instrument is cleaned using the cleaning liquid.