Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/83—Mixtures of non-ionic with anionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0047—Other compounding ingredients characterised by their effect pH regulated compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/042—Acids
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/046—Salts
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3947—Liquid compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

• TECHNICAL FIELD The present invention relates to a liquid bleach composition and a cleaning method using the same.
• Background Art Liquid oxygen bleach based on hydrogen peroxide is the mainstream of bleach for clothing because it has low damage to dyes, fibers, etc., and can be applied directly to dirt. It is. However, since its bleaching power is inferior to that of chlorinated bleach, improving bleaching power is a major issue.
• organic peracids which have higher oxidizing power than hydrogen peroxide, and one of them is organic peracid precursor (bleach activator). Products containing are used in the clothing field.
• This bleach activator exhibits an excellent bleaching effect by reacting with hydrogen peroxide in a weakly alkaline washing bath to produce an organic peracid.
• the stability of hydrogen peroxide decreases with weak alkalinity, it is difficult in terms of storage stability to add hydrogen peroxide to a general liquid detergent composition that is neutral to weakly alkaline. Therefore, it is necessary to make the pH of the product acidic in order to maintain the storage stability of hydrogen peroxide.
• many bleach activators used in combination with bleach using hydrogen peroxide have active ester groups, so hydrolysis and hydrogen peroxide decomposition can be carried out quickly in weakly alkaline compositions. The activity of the bleaching activator is remarkably reduced in situations where it loses its activity and is actually washed.
• JP—A 7—539 94, JP—A 7-7 0 59 3, JP—A 2006— 1 6 9 5 1 5 and JP—A 2006—1 695 1 7 JP-A200 6- 1 69 5 1 5 and JP-A 20 0 6-1 6 9 JP-A200 6- 1 69 5 1 5 are disclosed.
• 5 17 describes a technology that achieves both bleaching activator and hydrogen peroxide stability and bleaching effect.
• the composition is diluted to about 1 000 volume times.
• the pH after diluting the composition 10 to 100 times volume should be 8.5 or more. It was necessary to set the pH of the composition to a range above 4.5.
• JP-A20 06-1 6 9 5 1 5 and JP—A20 0 6—1 6 9 5 1 7 also disclose liquid detergent compositions based on a nonionic surfactant as a main base.
• WO-A 2007/077953 consists of (a) hydrogen peroxide, (b) bleach activator, (c) nonionic surfactant, (d) water, (e) boric acid, borax or boric acid Disclosed is a liquid detergent composition comprising a salt and (f) polyol and having a pH of 4-7 at 20 ° C.
• the present invention comprises the following component (a), component (bl), component (b 2), component (c), component (d), and component (e): (bl) Component content is 25-60% by mass, (b 2) Component content is 1.5-20% by mass, and (b 2) component / (b 1) component mass ratio is 0
• the present invention relates to a liquid bleaching composition having a pH of 0.5 to 0.5 and a pH of 2.5 to 4.5 at 20 ° C.
• the (bl) component and the (b 2) component are collectively referred to as the (b) component.
• Component at least one compound selected from boric acid, borax and borate
• Component Compound in which one or more parts each having one hydroxyl group are present on both adjacent carbon atoms
• the present invention is mixed using a method including the following Step A, Step B and Step C.
• Process A Concentrated premix of component (d):
• the present invention provides an organic peroxy acid solution in an area where the diluted pH is less than 8.5 while having excellent storage stability even under more severe conditions in the pH jump liquid bleach composition.
• a liquid bleach composition that is efficiently produced and maintains an excellent bleaching effect.
• it has excellent storage stability even under harsher conditions, and organic peracids are efficiently generated even when the diluted pH is less than 8.5, and the excellent bleaching effect is maintained.
• a liquid bleach composition that can be obtained is provided. More specifically, it is suitable for textile products such as clothing.
• bleaching activation can be achieved even when the washing pH after dilution with water is 8.5 or less by blending a nonionic surfactant and an anionic surfactant at a specific amount / ratio.
• An organic peracid can be efficiently generated from the agent.
• a liquid bleach composition having a low pH is provided. Excellent bleaching effect even after long-term storage.
• the liquid bleach composition of the present invention contains hydrogen peroxide as the component (a).
• the content of the component (a) as hydrogen peroxide is preferably 0.1 to 30% by mass, more preferably 0.5 to 20% by mass, and still more preferably 1 to 1 in the liquid bleach composition. 5 mass%, particularly preferably 1 to 10 mass%. In such a range, an excellent bleaching effect and good stability can be obtained.
• the liquid bleach composition of the present invention comprises (bl) a nonionic surfactant (hereinafter referred to as component (b1)), and (b2) as the surfactant of component (b). ) Contains an anionic surfactant [hereinafter referred to as component (b 2)].
• the present inventors have found that the bleaching performance is remarkably improved in a limited region where the pH of the processing solution is 7 to 8.5. I found it. Conventionally, it has been known that a higher pH is more preferable for the production of peracid, but the present inventors have shown that in the range of pH 7 to 8.5 when the peracid production is constant. It was found that the performance was improved. Although this mechanism is not clear, it is presumed that it is caused by the dissociated state of organic peracid and the adsorptivity to fibers and dirt. In the present invention, such an effect can be obtained with a one-component composition, which is advantageous from the viewpoint of container cost and simplicity.
• the nonionic surfactant as the component (bl) is particularly preferably a polyoxyalkylene alkyl ether type nonionic surfactant having an oxyethylene group (ethyleneoxy group) and / or an oxypropylene group (propyleneoxy group).
• a polyoxyalkylene alkyl ether type nonionic surfactant having an oxyethylene group (ethyleneoxy group) and / or an oxypropylene group (propyleneoxy group).
• the compound of the following general formula (1) is mentioned.
• R 1 represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms, preferably 12 to 14 carbon atoms.
• EO is an ethyleneoxy group
• PO is a propyleneoxy group.
• a represents a number average number of added moles of 0 to 20
• b represents a number average number of added moles of 0 to 20, except when both a and b are 0.
• the number a of the average addition mole is preferably 6 to 15, more preferably 7 to 12
• the number average addition mole of b is 0 to 10, more preferably 1.
• ⁇ 5 particularly preferably a number from 1 to 3.
• the number average addition of a is preferably 12 to 20, more preferably 15 to 20, and the number average of b is preferably added.
• the number of moles is 0 to 10, more preferably 1 to 5, and even more preferably 1 to 3.
• E0 and P0 may be arranged in any form of a random copolymer or a block copolymer.
• the polyoxyalkylene alkyl ether type nonionic surfactant has an oxyethylene group (ethyleneoxy group) and an oxypropylene group (propyleneoxy group) arranged in either a random copolymer or a block copolymer.
• a block copolymer is preferable from the viewpoint of washing performance and the stability of the component (c) bleach activator.
• As the form of the block copolymer a compound represented by the following general formula (2) is particularly preferred.
• R 2 O (EO) a (PO) b (EO) c — H (2)
• R 2 represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms, preferably 12 to 14 carbon atoms.
• EO is an ethyleneoxy group
• PO is a propyleneoxy group.
• a represents the number of the number average added moles 1 to 20
• b represents the number of the number average added moles 1 to 20
• c represents the number of the number average added moles 1 to 20.
• the number average addition mole number of a is 6 to 15, more preferably 7 to 12
• the number average addition mole number of b is 1 to 10, more preferably 1 to 5, particularly preferably.
• the number of 1 to 3 is good, and the number of added moles of c is 6 to 15, more preferably.
• ⁇ 1 is 2.
• the content of the component (bl) in the liquid bleach composition of the present invention is 25 to 60% by mass from the viewpoint of detergency and stability of the whitening activator, and 3 0 to 5 5 % By weight is preferred, and 35-50% by weight is particularly preferred.
• the polyoxyethylene alkyl sulfate ester salt having an alkyl group having 10 to 14 carbon atoms and an ethylene oxide average addition mole number of 1 to 3 Preferred are alkylbenzene sulfonates having 11 to 15 carbon atoms, alkyl or alkenyl sulfonates (10 to 18 carbon atoms), Alkylbenzene sulfonates having an alkyl group with 11 to 15 carbon atoms are particularly good.
• the content of the component (b 2) in the liquid bleach composition of the present invention is 1.5 to 20% by mass from the viewpoint of bleaching performance and the stability of the bleach activator, and 3 to 15 % By mass is preferable, and 5 to: L 0% by mass is more preferable.
• the content of the component (b) in the liquid bleaching composition of the present invention is preferably 26.5 to 70% by mass. From the viewpoint of force, 30 to 60% by mass is more preferable, 35 to 55% by mass is further preferable, and 35 to 50% by mass is particularly preferable.
• the mass ratio of the component (b 2) component (b 1) component is 0.05 to 0.5, while improving the stability of the bleach activator during storage, From the viewpoint of accelerating the production of organic peracid when diluted with water (during use), 0.07 to 0.4 is preferable, and 0.1 to 0.3 is particularly preferable.
• the bleach activator that is blended in bleach and detergents using pH jump technology effectively produces organic peracids and improves whitening performance when the pH when diluted with water is 8.5 or higher. It was thought to demonstrate. However, the present inventors use (b 1) component and (b 2) component together at a specific content and mass ratio, so that the organic peracid can be removed even when the pH after dilution with water is less than 8.5.
• Component (c) The liquid bleach composition of the present invention contains a bleach activator as the component (c).
• Component bleach activators include alkanoyloxybenzene sulfonic acids having an alkanoyl group having 8 to 14 carbon atoms, alkanoyloxybenzene carboxylic acids having an alkanoyl group having 8 to 14 carbon atoms, and salts thereof. There are at least one selected from the viewpoints of alkanoyloxy having a linear or branched alkanoyl group having 8 to 12 carbon atoms from the viewpoint of achieving both peracid generation upon dilution and stability in the product.
• Bleach activators selected from benzensulfonic acid, alkanoyloxybenzene carboxylic acids having a straight-chain or branched alkanol group having 8 to 12 carbon atoms, and salts thereof are preferred.
• the bleach activator of the present invention is preferably a sulfonic acid type bleach activator from the viewpoint of peracid generation upon dilution when the stock solution has a pH of 2.5 to 4.0, particularly nonanoyl. Acids and their salts are particularly preferred.
• a carboxylic acid type whitening activator is preferred from the viewpoint of the stability of the bleach activator in the product, and the number of carbon atoms from the viewpoint of solution stability.
• Particularly preferred are alkanoyloxybenzene carboxylic acids having 8 to 10 alkanoyl groups or salts thereof.
• the salt sodium salt, potassium salt and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility.
• component (c) examples include compounds selected from the following (c-l) to (c-16), and (c1-2), (c-13), (c-15) and (c c) More preferred is a compound selected from 6).
• component (c-6) Compound represented by the following formula (octanoyloxy p- ⁇ ⁇ zen carboxylic acid)
• a bleach activator selected from alkanoyloxybenzene sulfonic acid having 8 to 14 carbon atoms in the alkanoyl group and a salt thereof as component (c)
• component (b 2) component / (b 1)
• the mass ratio of the components is preferably 0.05 to 0.2, and more preferably 0.07 to 0.15.
• component (c) When a whitening activator selected from alkanoyloxybenzene carboxylic acids having 8 to 14 carbon atoms in the alkanoyl group and salts thereof is used as component (c), (b 2) component / (b 1)
• the mass ratio of the components is preferably 0.1 2 to 0.5, and more preferably 0.1 5 to 0.4.
• the content of the component (c) in the composition of the present invention is a viewpoint that exhibits an excellent bleaching effect. Therefore, 0.1 to 10% by mass is preferable, 0.2 to 5% by mass is more preferable, and 0.2 to 2% by mass is still more preferable.
• the liquid bleach composition of the present invention contains at least one compound selected from boric acid, borax and borate as the component (d).
• borates include sodium borate, potassium borate, ammonium borate, sodium tetraborate, potassium tetraborate, and ammonium tetraborate.
• the liquid bleach composition of the present invention contains, as the component (e), a compound in which one or more sites each having one hydroxyl group are present on both adjacent carbon atoms. .
• component (e) include the following compounds (i) to (iv), and at least one selected from the group consisting of these compounds can be used.
• Glucose apiose, arabinose, galactose, lyxose, mannose, galose, aldoose, idose, evening rosin, xylose, and fructose, and their derivatives (alkyl (poly) daricoside etc)
• a polysaccharide selected from starch, dextran, xanthan gum, guar gum, curdlan, pullulan, lipstick, and cellulose.
• the sugar alcohols (ii) above are particularly suitable and can be used alone or in combination.
• sorbitol is preferred because of its stability and bleaching / cleaning effect.
• the content of component (d) in the composition of the present invention is preferably from 0.05 to 1% by mass, more preferably from 0.15 to 0.5% by mass, and even more preferably from 0.5 to 1% by mass as boron atoms. 2 to 0.4 mass%.
• the content of the component (e) in the composition of the present invention is preferably 3 to 35% by mass, more preferably 5 to 30% by mass, and still more preferably 10 to 20% by mass.
• the liquid bleach composition of the present invention has a pH of 2.5 to 4.5 at 20 ° C, preferably 3.0 to 4.5, particularly preferably 3.5 to 4. 5.
• the composition of the present invention has a stable pH during storage of (a) hydrogen peroxide and (c) bleach activator by setting the pH during storage of the composition to a range of 2.5 to 4.5. Sex can be maintained.
• the pH after dilution with water can be less than 8.5, but in the composition of the present invention, a specific amount and a specific mass ratio of (bl) nonionic surfactant and (b2)
• an anionic surfactant By containing an anionic surfactant, the bleach activator after diluting the composition with water even in a region where the pH after dilution with water is less than 8.5, for example, in the range of pH 7 to 8.5.
• the production of organic peracids can be promoted, and excellent bleaching performance can be exhibited.
• the liquid bleach composition of the present invention has a pH of 7 to 8.5 at 2 ° C of a 100-fold (volume ratio) dilution.
• the liquid bleach composition of the present invention may contain a sequestering agent having a phosphonic acid group or its base as the component (f) from the viewpoint of improving the stability of hydrogen peroxide.
• the content of the component (f) in the composition is preferably 0.1 to 5% by mass, more preferably 0.05 to 1% by mass.
• component (f) examples include: Even 1, 1, 1-diphosphonic acid, Even 1, 1, 2, 2-triphosphonic acid salt, Even 1, 1-hydroxy 1, 1, 1-diphosphonic acid, Ethane Organic phosphonic acid derivatives such as 1-hydroxy-1,1,2-triphosphonic acid, ethane-1,2-dicarboxyloxy 1,2-diphosphonic acid, methanehydroxyphosphonic acid, ditrimethyl trimethylenephosphonic acid, ethylenediaminetetrakismethylenephosphonic acid, etc. Is mentioned. These can be used alone or in combination. Among these, 1-hydroxy-1,1-diphosphonic acid, ethylenediaminetetrakismethylenephosphonic acid and the like are preferable.
• the liquid bleach composition of the present invention may contain a solvent as the component (g) from the viewpoint of preventing thickening at low temperatures.
• a solvent as the component (g) from the viewpoint of preventing thickening at low temperatures.
• components alcohols such as ethanol, propanol and bubutanol, ethylene glycol, propylene glycol, trimethylene glycol, butyl diglycol, diethylene glycol, triethylene glycol and other Daricols, diethylene glycol butyl ether, triethylene Examples include polyalkylene glycol monoalkyl or aryl ethers such as glycol phenyl ether. Among these, ethanol or propylene glycol is preferable.
• the liquid bleach composition of the present invention is a hardness component that is one of the inhibitors of organic peracid production.
• (h) as a component, a polymer compound obtained by polymerizing a monoethylenically unsaturated monomer containing at least one selected from acrylic acid, methacrylic acid and salts thereof to a polyether compound It is preferable to contain.
• the component (h) may be a polymer compound obtained by graft polymerization of a monoethylenically unsaturated monomer mainly composed of acrylic acid and / or methacrylic acid on the backbone of the polyether compound.
• the polyether compound a compound represented by the following general formula (hi) is preferable.
• Y is a hydrogen atom, a methyl group, a phenyl group, or a benzyl group, and n is a number from 2 to 200 indicating the average number of moles added of the oxyethylene group.
• Y is preferably a methyl group or a phenyl group.
• n is preferably a number from 2 to 50.
• the monoethylenically unsaturated monomer to be grafted to the polyether compound contains at least one selected from acrylic acid, methacrylic acid and salts thereof.
• Examples of the salt of acrylic acid or methacrylic acid include alkali metal salts, alkaline earth metal salts, ammonium salts and the like, and alkali metal salts, particularly sodium salts are preferred.
• Monoethylenically unsaturated monomers other than acrylic acid, methacrylic acid and their salts are preferably unsaturated carboxylic acids or their salts, such as maleic acid, fumaric acid, itaconic acid and their salts, maleic anhydride, etc. Is mentioned.
• the ratio of at least one selected from acrylic acid, methacrylic acid and salts thereof in the monoethylenically unsaturated monomer is preferably 10 to 100% by mass, more preferably 20 to 70% by mass. preferable.
• the polymer compound (h) is polymerized at such a ratio that the mass ratio of the polyether compound to the monoethylenically unsaturated monomer (polyether compound Z monoethylenically unsaturated monomer) is 0.25 or more.
• the mass ratio of the polyether compound Z monoethylenically unsaturated monomer is more preferably 0.25 to 1, and still more preferably 0.3 to 0.7.
• JP—A 1 0—6 047 6 can be referred to.
• the salt type polymer compound can be easily obtained by cooling the acid type polymer compound described above and then neutralizing with an alkali agent such as sodium hydroxide.
• the acid form may be added to the composition and neutralized in the composition to make the acid form.
• the weight average molecular weight of the polymer compound (h) component of the present invention is preferably 2500 to 1000 and more preferably 300 to 5000.
• the weight average molecular weight of the polymer compound is a value measured by GP C (gel permeation chromatography) using polyoxyethylene glycol as a standard substance.
• the content of the component (h) is preferably from 0 to 1 to 5% by mass, more preferably from 0.1 to 2% by mass in the composition from the viewpoint of the effect on the hardness component capturing effect and the pH jump effect.
• the liquid bleaching composition of the present invention is disclosed in the JPO Gazette “Known and Conventional Techniques (Clothing Detergent for Clothing)” Japan Patent Office, On March 26, 1998, P 4-22 may contain a cationic surfactant and an amphoteric surfactant.
• the composition of the present invention contains a cationic surfactant and an amphoteric surfactant, preferably 0.01 to 3% by mass, more preferably 0.0. T JP2009 / 052344
• liquid bleach composition of the present invention is free of radicals.
• Optional ingredients such as trapping agents, silicones, bactericides, fluorescent dyes, enzymes, and fragrances can be blended.
• the liquid bleach composition of the present invention contains water and usually the balance of the composition is water.
• Examples of the water used in the present invention include ion-exchanged water obtained by removing a small amount of metal dissolved in water, distilled water, and sterilized water containing a trace amount of sodium hypochlorite. Therefore, ion exchange water or distilled water is preferred.
• liquid bleach detergent composition of the present invention since the surfactant concentration is high and the blending water is low, the following steps (in order to blend efficiently and obtain an excellent cleaning / bleaching effect) It is preferable to manufacture by the method containing A)-(C).
• a preferred production method of the present invention comprises mixing (d) component, (e) component and water, and the content of (d) component in the premix is 5 to 30 mass, and the water content is 10 Step of preparing an aqueous boron compound solution of ⁇ 40 mass (Step A), Step of mixing water and Z or (b 1) component and Z or (b 2) component with respect to component (step B), a step of mixing the boron compound aqueous solution obtained in step A with the bleach activator solution obtained in step B and the component (a) and other components blended as necessary (step C). Is included.
• step A of the present invention the method of obtaining the boron compound aqueous solution of the present invention by dissolving the component (d) in the mixed solution of the component (e) and water, the content of the component (e) is 20 to 8
• An aqueous solution of 0% by mass, preferably 30 to 70% by mass was prepared.
• (d) component is added.
• (E) component is By setting it to the lower limit or higher, the solubility of the component (d) is remarkably improved, and by setting it to the upper limit or lower, the storage stability (solution stability) of the boron compound aqueous solution is improved.
• the content of the component (d) in the boron compound aqueous solution of the present invention is blended so as to be 5 to 30% by mass, preferably 10 to 25% by mass, and more preferably 15 to 25% by mass.
• the dissolution tank for mixing can be made smaller and the equipment cost can be reduced.
• the upper limit value or less the solution stability of the component (d) in the aqueous solution of the boron compound of the present invention is reduced. Can be secured.
• the content of the component (d) in the boron compound aqueous solution of the present invention is a value based on an anhydride (one containing no anhydrous salt or moisture).
• the content of the component (e) in the boron compound aqueous solution of the present invention is 10 to 70% by mass, preferably 20 to 65% by mass, and more preferably 30 to 60% by mass.
• the content of water in the boron compound aqueous solution of the present invention is 10 to 40% by mass, preferably 15 to 35% by mass, and more preferably 15 to 30% by mass.
• the mass ratio of the component (d) component Z (e) in the boron compound aqueous solution of the present invention is preferably 1Z5 to 5Z1, more preferably 1 to 3 to 3Z1.
• solution stability is improved. In particular, since the solution stability is good even at low temperatures, the storage management temperature of the boron compound aqueous solution can be lowered, and the manufacturing cost can be reduced.
• the pH of the aqueous boron compound solution of the present invention at 25 ° C is 1 to 9, preferably 2 to 8, and more preferably 2 to 6. Below the lower limit, problems such as corrosion of equipment may occur, and above the upper limit, the solution stability of the boron compound aqueous solution decreases.
• the pH may be adjusted with only the component (d), or other pH adjusting agents may be used. Examples of the pH adjuster include sodium hydroxide, potassium hydroxide, sodium carbonate, and amine, with sodium hydroxide being preferred.
• the pH adjuster when using the pH adjuster, if it is added all at once, the hue may be deteriorated. Therefore, it is necessary to devise such as adjusting the addition rate while stirring.
• each component is agitated and mixed in accordance with the blending scale and the like, and usually a stirrer used for the production of a liquid bleaching detergent composition or a liquid detergent composition. Or a blender can be used.
• the compounding temperature is not particularly limited, but for the purpose of promoting the solubility of boric acid, 10 to 80 ° C, preferably 20 to 70 ° C, and more preferably 30 to 60 ° C. Is preferred.
• the bleach activator of the component (d2) can be blended with either the bulk powder or a solution dissolved in an arbitrary solvent, but from the viewpoint of efficiency, as with the boron compound aqueous solution. It is preferably used in a solution, particularly an aqueous solution.
• a solution state JP-B 2938788, [0 029] can be mentioned as a reference.
• the bleach activator was previously dissolved in water, (bl) nonionic surfactant and / or (b2) anionic surfactant and adjusted to pH 3-7, preferably 4-6.
• a solution is preferred.
• the compounding temperature is not particularly limited, but is 10 to 80 ° C, preferably 20 to 70 ° C, and more preferably 30 to 60 ° C for the purpose of promoting the solubility of the bleach activator. Is preferred.
• Step C of the present invention considering the stability of the component (d) and the component (e) in the liquid bleach detergent composition, etc., (e) a part of the component and water It is preferable to prepare a liquid bleaching detergent composition by blending a part of each of these in an aqueous boron compound solution and blending (adding) the remaining parts separately. Also bleach activator From the viewpoint of storage stability of the solution, blend the final blended component (bl) and / or part of (b 2) into the bleach activator solution (premix of bleach activator), It is preferable to prepare a liquid bleaching detergent composition by blending (adding) separately. More preferably, both of (d), (e), (bl), and (b 2) components are performed.
• Preferable more detailed examples include, in the production method including the steps (A) to (C), the boron compound aqueous solution obtained in the step (A), the component (e) not added to the boron compound aqueous solution, and Mix water and other ingredients, mix (bl) and / (b 2) ingredients that were not added to the bleach activator solution, and dissolve at 20 ° C.
• a method of mixing the bleach activator solution after adjusting the pH to 2.5 to 7 is mentioned.
• the liquid detergent composition obtained by this production method can be readjusted using the above-mentioned pH adjuster, but there is a risk of impairing the stability of the bleach activator. is necessary.
• Example The following examples describe the practice of the present invention. The examples are given for illustration of the invention and are not intended to limit the invention.
• the components shown in Table 1 were mixed and adjusted to a predetermined stock solution pH with 48% NaOH aqueous solution or 20% H 2 S_ ⁇ 4 aqueous solution as needed, the liquid bleach composition (invention products 1 to 8 and comparative products 1 to 8) were obtained.
• the obtained liquid bleach composition Using the obtained liquid bleach composition, its storage stability (bleach activator remaining rate), organic peracid production immediately after blending, and bleaching power (bleaching rate after storage) were evaluated by the following methods.
• Table 1 also shows the pH of the liquid bleach composition after 100-fold dilution (volume ratio) with 20 ° C water. The following components were used as the components in the table. E ⁇ is an abbreviation for ethylene oxide.
• Meat sauce made by Kagome Co., Ltd. Meat sauce of ripe tomatoes (Aug. 9, 2008, Expiration Date, Lot No .: D 6 809 JC) Z solid content of 29 g of canned mesh)
• the resulting solution was heated to boiling.
• Cotton gold cloth # 2003 was soaked in this solution and boiled for 15 minutes. Removed from the heat, left for about 2 hours, and allowed to stand at 30 ° C. Then, the cloth was taken out and the excess liquid was removed with a spatula and allowed to dry naturally. After that, it was pressed and used as an 8 cm x 8 cm test cloth.
• step A (d-1) component, (e-1) component, and water are mixed at a mass ratio of 15: 6 0:25, respectively, and heated to 40 ° C. By stirring and dissolving, a transparent and uniform boron compound aqueous solution was prepared.
• Step B (c 1) The ingredients and water were mixed at a mass ratio of 25:75, respectively, heated to 50 ° C. and dissolved with stirring to prepare a transparent and uniform bleach activator solution. .
• step C main formulation
• the boron compound aqueous solution prepared in step A, the (e-1) component not added to the boron compound aqueous solution, and the water not added to the boron compound aqueous solution , (F-1) component, (g-2) component, and (h-1) component are mixed with stirring, then (b 1-2) component, (b 1-3) component, and ( b 2 1 1) The components were added with stirring to obtain a homogeneous solution.
• Step A and step B were carried out in the same manner as in Method Example 1 to prepare an aqueous boron compound solution and a bleach activator solution, respectively.
• the process C ′ main blend
• All other ingredients to make (the boron compound aqueous solution to make the composition of the present invention 3 and the bleach activator solution (e-1) may contain ingredients and water) They were mixed simultaneously with stirring and stirred at 30 ° C. for 20 minutes to obtain a liquid bleaching detergent composition having a transparent and uniform appearance. Further, the residual ratio of the component (c-1) after storage at this time was 92%.
• step C '' main blend
• all components are mixed simultaneously in the package without using the boron compound aqueous solution of step A and the bleach activator solution of step B, and the temperature is 30 20 at ° C Stir for minutes. When the condition was visually confirmed, some insoluble matter was found.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40952304

Family Applications (1)

Country Status (6)

Families Citing this family (14)

Citations (13)

• 2008
  • 2008-02-08 JP JP2008028483A patent/JP5412040B2/ja not_active Expired - Fee Related
• 2009
  • 2009-02-05 WO PCT/JP2009/052344 patent/WO2009099244A1/ja not_active Ceased
  • 2009-02-05 US US12/864,627 patent/US20100308260A1/en not_active Abandoned
  • 2009-02-05 CN CN2009801044466A patent/CN101939407B/zh not_active Expired - Fee Related
  • 2009-02-05 EP EP09708784A patent/EP2251405A1/en not_active Withdrawn
  • 2009-02-06 TW TW098103952A patent/TW200940708A/zh unknown

Patent Citations (13)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events