JP4663443B2 - Liquid bleach article - Google Patents

Description

  The present invention relates to a containerized liquid bleach article having a transparent metering cap filled with a liquid bleach composition, as well as a liquid bleach composition. In particular, it relates to a liquid bleach article in a container having a transparent metering cap filled with a liquid bleach composition suitable for clothing, as well as a liquid bleach composition.

  Liquid bleaching agents based on hydrogen peroxide are preferred at home because they can be used for colored fabrics such as clothing, and can be applied directly to dirt and can be washed together with laundry detergent. in use. On the other hand, when the liquid bleach composition is used for absorbent objects such as textile products, the liquid bleach composition may remain on the surface and exhibit sufficient bleaching power against dirt. Attempts have been made to increase the viscosity of the liquid bleach composition so that it can be done and also from an operational point of view.

  In general, as a method for increasing the viscosity of an aqueous solution, a polymer thickener such as an acrylic acid polymer, xanthan gum or polyvinyl alcohol, or a clay substance such as smectite can be added. The liquid bleaching agent composition is adjusted to be acidic in consideration of stability, so that it is acidic and exhibits sufficient stability, is economically superior, and is sufficient without causing turbidity in appearance. It is difficult to obtain a thickening effect.

  For example, an acrylic acid polymer is difficult to thicken in an acidic system, and the blending of a sugar-based thickener such as xanthan gum decreases the viscosity after storage. Moreover, when using polyvinyl alcohol, since it is necessary to mix | blend in large quantities, it is difficult to perform effective thickening. In the case of clay materials, there is a risk of promoting the decomposition of hydrogen peroxide itself.

  In order to solve these problems, a blending system containing a phenol compound for viscosity stability in addition to a polymer thickener has been proposed (see, for example, Patent Document 1), and a polyol such as a saccharide and the like. A system containing a boron compound has been proposed (see, for example, Patent Document 2), but these liquid bleach compositions are uneconomical because a special viscosity stabilizer must be incorporated. In addition, it is known that a specific polyoxyalkylene derivative is effective for thickening in a hydrogen peroxide-containing system (see, for example, Patent Document 3), but an oxygen-based liquid bleach having a higher bleaching performance. A composition is desired.

The liquid bleach composition can be used by weighing it into a measuring cap or using it directly from a bottle, but it is generally weighed when applied directly to clothing. It is used by weighing it on a cap or the like (for example, see Patent Document 4). As described above, it is advantageous that the viscosity of the liquid bleach composition is high from the viewpoint of cleaning performance and work. However, when a measuring cap is used, if the viscosity is high, the liquid bleaching agent is contained in the measuring cap. There is a problem of remaining. In particular, when the measuring cap is transparent, there is a problem that the remaining liquid bleaching agent is concentrated by exposure to sunlight and adversely affects the measuring cap.
JP 11-193399 A Japanese Patent Laid-Open No. 10-72598 JP-A-10-130893 JP 2001-171704 A

  An object of the present invention is to provide a container having a transparent measuring cap filled with a liquid bleaching composition that does not adversely affect the transparent measuring cap even if the liquid bleaching composition remains in the transparent measuring cap during use or the like. It is to provide a liquid bleach article as well as a liquid bleach composition.

This invention contains the following (a) component, (b) component, (c) component, and (d) component, and the content of (a) component in a composition is 0.5-5 mass%, (b Filled with a liquid bleach composition having a component content of 2 to 20% by mass, a component content of 0.01 to 5% by mass, and a component content of 70 to 95% by mass. A containerized liquid bleach article having a transparent metering cap is provided.
(A) Hydrogen peroxide (b) Surfactant (c) At least one selected from bishydroxyethylene terephthalate and bishydroxydiethylene terephthalate (d) Water The present invention also includes the above components (a) and (b) (C) component and (d) component are contained, (a) component content in a composition is 0.5-5 mass%, (b) component content is 2-20 mass%, (c A liquid bleaching composition is provided wherein the content of the component is 0.01-5% by mass and the content of the component (d) is 70-95% by mass.

  The present invention further provides the above liquid bleach article containing a phosphonic acid metal scavenger as the component (e).

  The present invention further provides the above-mentioned liquid bleaching article containing a phenol radical trapping agent as the component (f).

  According to the present invention, a transparent measuring cap filled with a liquid bleaching composition, which has liquid properties suitable for cleaning performance and workability, but does not adversely affect the measuring cap even if it remains on the measuring cap or the like. Liquid bleach articles having a container as well as liquid bleach compositions are obtained.

[(A) component]
The liquid bleach composition of the present invention contains hydrogen peroxide as the component (a).

[Component (b)]
The liquid bleach composition of the present invention contains a surfactant as component (b). Surfactants include nonionic surfactants, anionic surfactants, mono- or dialkylamines and their polyoxyethylene adducts, mono- or di-long alkyl quaternary ammonium salts, cationic surfactants, carbo Examples include amphoteric surfactants such as betaine, sulfobetaine, and hydroxysulfobetaine.

  From the viewpoint of cleaning performance, liquid properties, and stability, the composition contains a nonionic surfactant (hereinafter referred to as component (b-1)) and an anionic surfactant (hereinafter referred to as component (b-2)). The mass ratio (b-1) / (b-2) between the component (b-1) and the component (b-2) is preferably 1 to 5, more preferably 1.2 to 4, 4 to 3 is more preferable, and 1.6 to 2.8 is particularly preferable.

  As component (b-1), alkylglycoside, polyoxyalkylene alkyl ether, sorbitan fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, oxyethyleneoxypropylene block polymer (pluronic), fatty acid monoglyceride or amine oxide Among these, a nonionic surfactant having at least one linear or branched alkyl group or alkenyl group having 8 to 24 carbon atoms or an aryl group substituted with an alkyl group having 8 to 24 carbon atoms. Is preferably a nonionic surfactant having at least one, polyoxyethylene alkyl ether (especially ethylene oxide average addition mole number of 3 to 15, preferably 4 to 9, alkyl group having 10 to 18 carbon atoms, preferably 2 to 14) it is more preferred.

  The component (b-2) was substituted with a linear or branched anionic surfactant having at least one alkyl group or alkenyl group having 8 to 24 carbon atoms, or an alkyl group having 8 to 24 carbon atoms. Examples include anionic surfactants having at least one aryl group, such as alkyl benzene sulfonate, soap, alkyl sulfate, polyoxyethylene alkyl sulfate, aliphatic α-sulfomethyl ester, α-olefin sulfone. An acid salt etc. can be mentioned. Among these, alkylbenzene sulfonate, α-olefin sulfonate, and alkyl sulfate are preferable.

[Component (c)]
The liquid bleach composition of the present invention contains at least one selected from bishydroxyethylene terephthalate and bishydroxydiethylene terephthalate as component (c).

[Liquid bleach composition]
The liquid bleach composition of this invention contains (a) component, (b) component, (c) component, and (d) component as an essential component.

  Content of (a) component in the composition of this invention is 0.5-5 mass% from a viewpoint of washing | cleaning performance and a liquid physical property, 0.5-3 mass% is preferable, and 1-2. % By mass is more preferable, and 1.5 to 2.6% by mass is even more preferable. Moreover, content of (b) component is 2-20 mass% from a viewpoint of washing | cleaning performance and a liquid physical property, 4-15 mass% is preferable, and 6-10 mass% is more preferable. Moreover, content of (c) component is 0.01-5 mass% from a viewpoint of stability and the bad influence prevention property to a cap, 0.02-4 mass% is preferable, 0.03-3 mass % Is more preferable. (D) Content of a component is 70-95 mass% from a viewpoint of washing | cleaning performance and a liquid physical property, 75-92 mass% is preferable and 80-88 mass% is more preferable.

  The mass ratio (b) / (a) between the component (a) and the component (b) in the composition of the present invention is preferably 1.5 to 7, preferably 2 to 6, from the viewpoint of cleaning performance and liquid properties. More preferably, 2.5-5 is still more preferable. Further, the mass ratio (c) / (a) of the component (a) to the component (c) in the composition of the present invention is 0.003 from the viewpoint of stability, cleaning performance, and prevention of adverse effects on the cap. -5 is preferable, 0.005-4 is more preferable, and 0.01-3 are still more preferable.

  The liquid bleach composition of the present invention preferably further contains a phosphonic acid-based metal scavenger as the component (e) from the viewpoint of stability and liquid physical properties. 0.05-5 mass% is preferable, as for content of (e) component in the composition of this invention, 0.1-3 mass% is more preferable, and 0.5-2 mass% is still more preferable.

  Examples of the phosphonic acid-based metal scavenger include 1-hydroxyethane-1,1-diphosphonic acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, hydroxyethane-1,1,2- Triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid) And organic phosphonic acid derivatives such as hexamethylenediaminetetra (methylenephosphonic acid) and diethylenetriaminepenta (methylenephosphonic acid) and salts thereof. Among these, 1-hydroxyethane-1,1-diphosphonic acid and its salt are preferable.

  The liquid bleach composition of the present invention preferably further contains a phenol radical trapping agent as the component (f) from the viewpoint of stability and liquid physical properties. 0.05-5 mass% is preferable, as for content of (f) component in the composition of this invention, 0.1-3 mass% is more preferable, and 0.5-2 mass% is still more preferable.

  Examples of the phenol radical trapping agent include a compound having a phenolic hydroxyl group, an ester derivative of a phenolic hydroxyl group, an ether derivative, and the like. More specifically, as such a compound, cresol, thymol, chlorophenol, bromophenol, methoxyphenol, nitrophenol, hydroxybenzoic acid, salicylic acid, hydroxybenzenesulfonic acid, di-t-butyl-hydroxytoluene, naphthol, Examples include hydroquinone, catechol, pyrogallol, phenoxyethanol, and phenol. Among these, 4-methoxyphenol, 4-hydroxybenzoic acid, hydroquinone, and catechol are more preferable, and considering the stability of the radical trapping agent, 4-methoxyphenol and 4-hydroxybenzoic acid are more preferable among these. 4-methoxyphenol is particularly preferred.

  The pH of the liquid bleach composition of the present invention at 20 ° C. is preferably from 3 to 7.5, more preferably from 3.5 to 7, and even more preferably from 4 to 6 from the viewpoints of stability, washing performance, and liquid physical properties. .5. PH adjusting agents for adjusting to such pH include inorganic acids such as hydrochloric acid and sulfuric acid, or acids such as organic acids such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid and maleic acid. Or alkali agents such as sodium hydroxide, potassium hydroxide, ammonia and derivatives thereof, amine salts (monoethanolamine, diethanolamine, triethanolamine, etc.), sodium carbonate, potassium carbonate, etc. may be used alone or in combination. It is particularly preferable to use an acid agent selected from hydrochloric acid and sulfuric acid, or an alkali agent selected from sodium hydroxide and potassium hydroxide.

Moreover, the viscosity at 20 ° C. of the liquid bleach composition of the present invention is preferably 50 to 200 mPa · s, more preferably 60 to 150 mPa · s, still more preferably 70 to 100 mPa · s, from the viewpoint of cleaning performance and liquid physical properties. s.
The viscosity of the liquid bleach composition of the present invention was measured using a B-type viscometer [manufactured by Tokyo Keiki Co., Ltd., VISCOMETER MODEL DVM-B], the rotor used was 1, the rotational speed was 60 r / min, and the measurement time was 60 seconds. Measured under conditions.

  The liquid bleach composition of the present invention preferably contains a boron compound for the purpose of obtaining excellent bleaching effect and long-term maintenance of stability. The content of the boron compound in the composition of the present invention is preferably 0.01 to 5% by mass, more preferably 0.05 to 3% by mass, still more preferably 0.1 to 2% by mass, and 0.5 to 1%. Mass% is particularly preferred.

  Examples of the boron compound include boric acid and borates, among which sodium tetraborate · pentahydrate and sodium tetraborate · 10 hydrate are preferable in production.

  The liquid bleach composition of the present invention preferably contains a bleach activator for the purpose of improving the bleaching effect. The content of the bleach activator in the composition of the present invention is preferably 0.1 to 5% by mass, more preferably 0.2 to 3% by mass, and still more preferably 0.4 to 1% by mass.

  As the bleach activator, an alkanoyloxybenzene type bleach activator is preferable, and alkanoyloxybenzenesulfonic acid having an alkanoyl group having 8 to 14 carbon atoms, preferably 8 to 13 carbon atoms or 8 to 14 carbon atoms, preferably 8 carbon atoms. Alkanoyloxybenzenecarboxylic acids having -13 alkanoyl groups or their salts are preferred. More specifically, preferred examples include octanoyloxy-p-benzenesulfonic acid, nonanoyloxy-p-benzenesulfonic acid, 3,5,5-trimethylhexanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzene. Sulfonic acid, dodecanoyloxy-p-benzenesulfonic acid, octanoyloxy-o- or -p-benzenecarboxylic acid, nonanoyloxy-o- or -p-benzenecarboxylic acid, 3,5,5-trimethylhexanoyloxy- o- or -p-benzenecarboxylic acid, decanoyloxy-o- or -p-benzenecarboxylic acid, dodecanoyloxy-o- or -p-benzenecarboxylic acid, and salts thereof. As the salt, sodium salt, potassium salt, and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility. Among these, nonanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzenecarboxylic acid, dodecanoyloxy-p-benzenesulfonic acid and salts thereof are particularly preferable from the viewpoint of bleaching effect.

  The liquid bleach composition of the present invention preferably contains a dispersant for the purpose of enhancing the bleaching effect. 0.05-14 mass% is preferable and, as for content of the dispersing agent in the composition of this invention, 0.1-8 mass% is more preferable. In particular, polyacrylic acid or a salt thereof or polymethacrylic acid or a salt thereof having a weight average molecular weight of 5,000 to 40,000, preferably 5,000 to 10,000, a weight average molecular weight of 10,000 to 100,000, preferably 30,000 to 70,000. Preferred is a carboxylic acid polymer selected from a copolymer of acrylic acid and maleic acid or a salt thereof, and / or a nonionic polymer selected from polyethylene glycol having a weight average molecular weight of 4,000 to 20,000, preferably 5,000 to 10,000. .

  In order to increase the bleaching effect on bleached fibers, the liquid bleach composition of the present invention can be used as a fluorescent whitening agent such as Tinopearl CBS (Ciba Geigy), Tinopearl SWN (Ciba Geigy), or Color Index Fluorescence. Fluorescent brighteners such as brighteners 28, 40, 61, 71, etc., and enzymes (cellulase, amylase, protease, lipase) can be included to improve bleaching performance. Moreover, you may mix | blend appropriate amounts of various trace additives, such as coloring agents, such as dye and a pigment, a fragrance | flavor, silicones, a disinfectant, and an ultraviolet absorber.

[Liquid bleach products]
The liquid bleach article of the present invention is obtained by filling the liquid bleach composition according to the present invention into a container having a transparent measuring cap.

  Here, the term “transparent” means that light can be transmitted to the extent that the contents are visible, and preferably has a HAZE value of 80% or less, and more preferably 70% or less. Transparency is evaluated by the HAZE value obtained by the optical property test method (5.5 and 6.4) of JIS K 7105 plastic. Specifically, the diffuse transmittance is measured using an integrating sphere light transmittance measuring device, and is a numerical value expressed by the ratio. The smaller the numerical value, the higher the transparency, and the higher the numerical value, the transparent. Means low.

  As a container having a transparent measuring cap, the transparent measuring cap described in JP 2001-3100 A, JP 2001-171704 A, JP 2001-199466 A, JP 2005-112370 A, or the like is included. A container etc. can be used.

  The container having a transparent measuring cap used in the present invention has a nozzle for pouring the content liquid into a nozzle member provided to the container body from the viewpoint of dripping and preventing liquid residue, and the nozzle A transparent measuring cap for covering the container is detachably provided, and the container body or nozzle member rises upward through an annular nozzle bottom extending from the base of the nozzle to the periphery, with an annular space between the nozzle and the nozzle. A cylindrical wall portion, wherein the cap forms a gap in the range of 0.05 to 2.0 mm between the outer wall surface of the cap and the cylindrical wall portion at the annular space. Preferably, the liquid dispensing container is attached to the container main body or the nozzle member, and at least one vertical rib is formed on either the cylindrical wall portion or the outer wall surface of the cap.

  An example of a container having a preferred transparent metering cap is shown in FIG. In FIG. 1, the transparent measuring cap 1 includes a threaded portion 4 in an outer cylindrical portion 3 that is continuous with an outer peripheral middle portion of the measuring portion 2, and seals the container main body 11 while being screwed to the nozzle member 12 of the container main body 11. In the state where it is removed from the nozzle member 12, the liquid in the container body 11 poured out from the nozzle 13 of the nozzle member 12 is received and can be measured.

  The liquid adhering to the inner surface of the measuring cap 1 flows from the inner surface of the measuring cap 1 through the liquid reservoir 14 of the nozzle member 12, and eventually returns to the container body 11 from the bottom 15 of the liquid reservoir 14.

  The nozzle member 12 has a cylindrical wall 18 that rises through an annular nozzle bottom extending from the base 16 of the nozzle 13 to the periphery, and rises with an annular space 17 between the nozzle 13 and the measuring cap 1. The annular space 17 is attached to the nozzle member 12 so as to form a gap in the range of 0.05 to 2.0 mm between the outer wall surface 19 of the measuring cap 1 and the cylindrical wall portion 18. At least one vertical rib is formed on either the cylindrical wall portion 18 or the outer wall surface 19 of the measuring cap.

  The material of the container for housing the transparent measuring cap and the composition used in the present invention is high density, medium density or low density polyethylene, polyethylene terephthalate and polypropylene (α-olefin, preferably 1-butene in terms of transparency, etc. It is preferable to select one or more thermoplastic resins selected from the group consisting of: The average thickness of the container (particularly the average thickness of the container for the composition) is preferably 100 to 2000 μm, more preferably 400 to 1500 μm.

  It is also possible to color the transparent measuring cap and container used in the present invention from an aesthetic point of view. In that case, at least one selected from phthalocyanine pigments and azo pigments is used as 100 parts by mass of the constituent resin of the container. Preferably, 0.005 to 0.5 parts by mass, more preferably 0.01 to 0.3 parts by mass is added. Examples of the phthalocyanine pigment include phthalocyanine green and phthalocyanine blue, and examples of the azo pigment include permanent carmine, permanent red, permanent yellow, Hansa yellow, Vulcan fast red, benzidine orange, and polyazo yellow.

  In addition, an internal kneading type antistatic agent is added to the resin so that the aesthetic appearance of the transparent measuring cap and the container is not charged and dirt is adsorbed. It is desirable to process with. From the standpoint of durability of the effect, use of an internal kneading type antistatic agent is preferable, and 0.001 to 1 part by mass, further 0.01 to 0.5 part by mass, particularly 0 to 100 parts by mass of the resin. It is desirable to use 0.05 to 0.5 parts by mass. As the antistatic agent, any commonly used surfactant can be used as long as it does not impair the properties of the contents. However, nonionic, anionic, cationic and amphoteric surfactants can be used. Of these, nonionic surfactants are preferred. Nonionic surfactants include poly (oxyethylene) alkylamine, poly (oxyethylene) alkylamide, poly (oxyethylene) alkyl ether, poly (oxyethylene) alkylphenyl ether, glycerin fatty acid ester, sorbitan fatty acid ester, and the like. Among them, poly (oxyethylene) alkylamine and glycerin fatty acid ester are preferable.

  For the purpose of further improving the storage stability of the contents, it is preferable to add an ultraviolet absorber to the constituent resin of the container. Examples of ultraviolet absorbers that can be used include benzotriazole-based, benzophenone-based, benzoate-based, and triazine-based organic compounds, and inorganic compounds such as fine-particle zinc oxide and titanium oxide. Agents are preferred.

  Preferred specific examples of the benzotriazole ultraviolet absorber include 2- (2H-benzotriazol-2-yl) -p-cresol and 2- (2′-hydroxy-3 ′, 5′-bis (methylbenzyl) phenol. ) Benzotriazole, 2- (2'-hydroxy-3'-tert-butyl-5'-methylphenol) -5-chlorobenzotriazole, 2- (2'-hydroxy-3 ', 5'-di-tert-) Butylphenol) -5-chlorobenzotriazole, 2- (2′-hydroxy-3 ′, 5′-di-tert-amylphenol) benzotriazole, 2- (2′-hydroxy-5′-tetramethylbutylphenol) benzotriazole , 2- [5-Chloro (2H) -benzotriazol-2-yl] -4-methyl-6- (tert- Til) phenol, 2,4-tert-butyl-6- (5-chlorobenzotriazol-2-yl) phenol, 2- (2H-benzotriazol-2-yl) -4,6-bis (1-methyl-) 1-phenylethyl) phenol, 2-benzotriazol-2-yl-4,6-di-tert-butylphenol, 2- (2H-benzotriazol-2-yl) -4,6-di-tert-pentylphenol, 2- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol and the like, particularly 2- (2H-benzotriazol-2-yl) -p- Cresol, 2- (2′-hydroxy-3 ′, 5′-bis (methylbenzyl) phenol) benzotriazole, 2- (2′-hydroxy-3′-ter -Butyl-5'-methylphenol) -5-chlorobenzotriazole, 2- (2'-hydroxy-3 ', 5'-di-tert-butylphenol) -5-chlorobenzotriazole, 2- (2'-hydroxy) -3 ′, 5′-di-tert-amylphenol) benzotriazole, 2- (2′-hydroxy-5′-tetramethylbutylphenol) benzotriazole, 2- [5-chloro (2H) -benzotriazole-2- Yl] -4-methyl-6- (tert-butyl) phenol, 2,4-tert-butyl-6- (5-chlorobenzotriazol-2-yl) phenol.

  In the present invention, the ultraviolet absorber is preferably used in an amount of 0.001 to 0.5 parts by weight, particularly preferably 0.005 to 0.3 parts by weight, based on 100 parts by weight of the transparent measuring cap and the resin constituting the container. It is preferable from the viewpoint of transparency.

Examples 1-7 and Comparative Examples 1-4
A liquid bleach composition having the composition shown in Table 1 was prepared using the following components. About the obtained liquid bleach composition, evaluation of the cap residual amount and application | coating detergency was performed by the method shown below. The results are shown in Table 1.

<Compounding ingredients>
(A) Component (a) -1; Hydrogen peroxide (b-1) Component (b-1) -1; CH ₃ (CH ₂ ) ₁₁ —O— (C ₂ H ₄ O) ₆ —H
(B-1) -2; CH 3 (CH 2) 11 -O- (C 2 H 4 O) 7 - (C 3 H 6 O) 2 - (C 2 H 4 O) 3 H
(B-1) -3; CH ₃ (CH ₂ ) ₁₁ —O— (C ₂ H ₄ O) _4.5 —H
(B-2) Component (b-2) -1; LAS-Na: C10-14 linear alkylbenzene sulfonate sodium (b-2) -2; AOS-Na: C14-18 α- Sodium olefin sulfonate (c) component (c) -1; bishydroxyethylene terephthalate (manufactured by Tokyo Chemical Industry Co., Ltd.)
(C) -2; bishydroxydiethylene terephthalate (manufactured by Tokyo Chemical Industry Co., Ltd.)
(E) Component (e) -1; 1-hydroxyethane-1,1-diphosphonic acid (Diquest 2010, manufactured by Solusia)
(F) Component (f) -1; 4-methoxyphenol Other component (g) -1; Dodecanoyloxy-p-benzenesulfonic acid (g) -2; Nonanoyloxy-p-benzenesulfonic acid (g) -3 Decanoyloxy-p-benzenecarboxylic acid (g) -4; metaboric acid <Evaluation of residual cap amount>
The liquid bleach composition is adjusted to 20 ° C., and 40 g of the liquid bleach composition is weighed into a transparent measuring cap (inner diameter 32 mm, material polypropylene, transparent measuring cap described in JP-A-2001-199466) shown in FIG. Next, the transparent measuring cap is tilted 95 degrees and held for 3 seconds, and the weighed liquid bleach composition is discharged. The amount of the liquid bleach composition remaining in the transparent measuring cap by this operation was measured.

<Coating cleaning power>
80 g of Nitto black tea (yellow package) was boiled in 3 liters of ion-exchanged water for about 15 minutes, rubbed with desiccated exposed cotton, soaked with cotton cloth # 2003 and boiled for about 15 minutes. Remove from the fire, leave it for about 2 hours, take out the cloth, let it dry naturally, wash it with water until the washing liquid stops coloring, dehydrate and press, and use it as a 10cm x 10cm test piece (tea-stained cloth) for the experiment. did.

  The liquid bleach composition was adjusted to 20 ° C., and 1 g of the liquid bleach composition was uniformly applied to the tea-stained cloth. A set of 5 sheets per sample. After leaving for 5 minutes after application, using an indicator detergent solution (determination without fluorescent brightener) described in JIS K 3362: 1998, washed with a tartometer at 20 ° C. for 10 minutes, then washed with water and dried The bleaching rate was determined by the following formula. The reflectometer was measured using NDR-101DP manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter.

It is sectional drawing of the mouth part which shows an example of the container which has a transparent measuring cap used for this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transparent measuring cap 2 Measuring part 3 Outer cylinder part 4 Screw part 11 Container main body 12 Nozzle member 13 Nozzle 14 Liquid reservoir part 15 Bottom part 16 Nozzle base 17 Annular space 18 Cylindrical wall part 19 Outer wall surface of measuring cap

Claims (8)

The following (a) component, (b) component, (c) component, and (d) component are contained, (a) component content in a composition is 0.5-5 mass%, (b) component content Transparent, filled with a liquid bleach composition having an amount of 2 to 20 mass%, a content of component (c) of 0.01 to 5 mass%, and a content of component (d) of 70 to 95 mass% Liquid bleach article in a container with a measuring cap.
(A) hydrogen peroxide (b) surfactant (c) at least one selected from bishydroxyethylene terephthalate and bishydroxydiethylene terephthalate (d) water   The liquid bleaching article according to claim 1, wherein the mass ratio (c) / (a) of the component (a) to the component (c) in the composition is 0.003 to 5.   The liquid bleaching article according to claim 1 or 2, wherein the mass ratio (b) / (a) of the component (a) and the component (b) in the composition is 1.5 to 7.   As component (b), (b-1) a nonionic surfactant and (b-2) an anionic surfactant are contained, and the mass ratio of component (b-1) to component (b-2) (b -1) / (b-2) is 1-5, The liquid bleach article in any one of Claims 1-3.   The liquid bleach article according to any one of claims 1 to 4, further comprising a phosphonic acid-based metal scavenger as component (e).   The liquid bleach article according to any one of claims 1 to 5, further comprising a phenolic radical trapping agent as component (f).   A container having a transparent measuring cap has a nozzle for pouring the content liquid into a nozzle member provided to the container main body, and a transparent measuring cap for covering the nozzle is provided detachably, the container main body Alternatively, the nozzle member has a cylindrical wall portion that rises through an annular nozzle bottom extending from the base of the nozzle to the periphery, and rises with an annular space between the nozzle and the cap, and the cap is the annular space. By the way, the cylindrical wall is attached to the container body or the nozzle member so as to form a gap within a range of 0.05 to 2.0 mm between the outer wall surface of the cap and the cylindrical wall portion. The liquid bleaching article according to any one of claims 1 to 6, which is a liquid dispensing container in which at least one vertical rib is formed on either the outer wall or the outer wall surface of the cap. The following (a) component, (b) component, (c) component, and (d) component are contained, (a) component content in a composition is 0.5-5 mass%, (b) component content The liquid bleach composition whose quantity is 2-20 mass%, content of (c) component is 0.01-5 mass%, and content of (d) component is 70-95 mass%.
(A) hydrogen peroxide (b) surfactant (c) at least one selected from bishydroxyethylene terephthalate and bishydroxydiethylene terephthalate (d) water

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