JPH11100594A - Garment oxygen-based bleaching agent in discharge container with foam-making mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garment oxygen-based bleaching agent in a discharge container with a foam-making mechanism which contains an oxygen-based bleaching agent having excellent bleachability and capable of being directly coated on a stain on the garment. SOLUTION: A garment oxygen-based bleaching agent is housed in a container having a foam making-mechanism and when coated in the form of a spot, the ratio of the height of the spot to the diameter of the spot is in the range of 0.1-0.5 and the ratio of the height of the spot one minute after coating to that at the time of coating is 0.5 or smaller. Further, the bleaching agent preferably contains an anti-foaming component.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oxygen bleaching agent for clothes in a discharge container having a foaming mechanism. In particular, the present invention relates to an oxygen bleaching agent for clothing, which can be applied in the form of spots and has foam properties excellent in permeability to clothing.

[0002]

2. Description of the Related Art Conventionally, oxygen-based bleaches for clothing have been widely accepted in that they can be used not only for white goods but also for a wide range of clothing including colored and patterned products. This oxygen bleaching agent can be classified into a liquid type and a powder type when viewed in commercial form. Of these, the liquid type can be applied directly to the stains on the clothing, and the concentrated solution permeates the stains, so that excellent bleaching power can be expected. However, it is difficult to apply a liquid type oxygen-based bleach to small spot-like stains. . As a method for solving such a problem when applying a liquid, it is conceivable to apply the liquid in a foamed state. As a method of applying in the form of a foam, a foaming composition for a cosmetic or a hairdressing agent is disclosed, for example, in JP-A-3-131680, in which 0.1 to 20% by weight of a specific alkyl saccharide surfactant and a propellant 1 ~ 1
Disclosed is a foam composition containing 5% by weight.
For skin cleansing agents, see, for example, JP-A-4-247021.
Patent Document discloses a foamed detergent composition having excellent feeling in use and foam stability by blending a silicon-based betaine-type amphoteric surfactant, a higher fatty acid and / or a salt thereof, water and a propellant. doing. JP-A-4-292696 discloses that alkyl polyglycoside is 5 to 40% by weight, anionic surfactant is 0.1 to 2.9% by weight, another surfactant is 0 to 3% by weight, and ordinary non-interfacial surfactant is used. A liquid foaming detergent having an increased viscosity comprising up to 100% by weight of water with an additive of activator is disclosed. Further, Japanese Unexamined Patent Publication No.
Japanese Patent No. 20618 discloses a skin composition in which a cleaning composition containing a specific nonionic surfactant and an anionic surfactant is filled in a foam discharge container having a porous film, and a creamy, well-formed foam is discharged. A cleaning article is disclosed.

As for hard surface cleaning agents, for example, Japanese Patent Application Laid-Open No. 1-304198 discloses that an alkyl glycoside surfactant is used in combination with a specific ester type nonionic surfactant to reduce skin irritation. Disclosed are compositions that relieve and enhance the detergency and foaming power.
JP-A-5-156293 discloses that 1 to 35% by weight of hydrogen peroxide and the like, 1 to 35% by weight of succinic anhydride and the like, 0.1 to 10% by weight of a surfactant and 0.1 to 10% by weight of a hydrotrope.
Disclosed is a bleaching and cleaning composition containing 5 to 30% by weight, which can be supplied in the form of foam using a spray container. Further, Japanese Patent Application Laid-Open No. 8-337797 discloses a foaming method containing 0.1 to 2% by weight of a specific surfactant, 0.1 to 2% by weight of a fatty acid salt, 1 to 20% by weight of a specific solvent and water. Discloses a foaming range detergent composition which is good, hard to disappear and hard to sag. However, in the case of these detergents, it is preferable to keep the applied foam as it is, from the purpose of use, particularly from the object to be applied,
There is almost no need to penetrate the inside of the coated part as in the case of oxygen-based bleaches for clothing.

On the other hand, with regard to clothing detergents, for example, Japanese Patent Application Laid-Open No. HEI 8-198301 relates to a spray container for ejecting a liquid material such as a finishing agent for clothing and a paste for clothing, and has a relatively high viscosity of 4 to 100 cp. Viscous liquid, HLB
Discloses that when a liquid containing 0.05 to 5% by weight of a surfactant having a pH of 3 to 10 is filled in a trigger container, the liquid can be ejected so as to form a favorable spray pattern. Japanese Patent Application Laid-Open No. Hei 8-196974 discloses a container containing 0.01 to 1.0% by weight of silicone oil, which can be used for a liquid paste and a liquid detergent, and has good sliding properties when used. For maintaining the pressure for a long time. Further, Japanese Patent Application Laid-Open No. Hei 8-231995 discloses that a proteinase, an enzyme stabilizer,
Disclosed is a foam-type discharge cleaning agent containing an H adjuster, a surfactant, and ion-exchanged water and filled with a solution having a viscosity of 80 cp / 20 ° C. or less. However, at present, an oxygen bleaching agent which can be directly applied to stains on clothing and has excellent bleaching power has not yet been obtained.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a discharge with a foaming mechanism which contains an oxygen-based bleach having excellent bleaching power and can be directly applied to stains on clothes. An object of the present invention is to provide an oxygen bleach for clothing in containers.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an oxygen bleaching agent for clothing contained in a discharge container with a foaming mechanism, which is effective for stains when the bleaching agent has specific foam properties. It has been made based on the finding that excellent usability and good bleaching power can be obtained. That is, the present invention relates to an oxygen bleaching agent for clothing housed in a discharge container with a foaming mechanism, wherein (spot height) / (spot diameter) when applied in the form of a spot is from 0.1 to 0.1. The present invention provides an oxygen bleaching agent for clothing, wherein the height is within a range of 0.5 and the height of a spot one minute after the application is 0.5 or less at the time of application.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

(1) Oxygen bleaching agent for clothing The oxygen bleaching agent for clothing of the present invention forms a good foam to facilitate spot application and to improve the permeability to cloth. In consideration of (Spot height) / (Spot diameter) when applied in the form of a spot,
It has a foam property of being in the range of 0.1 to 0.5.
Furthermore, in view of the fact that the oxygen-based bleaching agent for clothing of the present invention permeates quickly into a cloth and enables a sufficient bleaching power to be obtained with respect to a stain at an appropriate coating amount, one minute after the application, Has a foam property that the height of the spot is 0.5 or less at the time of application. In the present invention, the spot height and the spot diameter can be determined by the following method. That is, at room temperature, about 2 g of the stored bleach is applied in a foam form on a substrate such as a cotton knitted cloth.
The application is concentrated on one point so as to be as spherical as possible and the size of the spot of foam formed is measured. As the height of the spot, a value at the highest point of the bubble spot is adopted.
As the diameter of the spot, values in two orthogonal directions are measured, and the average value is adopted.

As the bleaching component of the oxygen bleaching agent for clothing of the present invention, any known bleaching component can be used, but it can be used easily and safely and can be used for a wide range of clothing including colored patterns. Hydrogen peroxide is preferred. The amount of the bleaching component is based on the weight of the oxygen bleach for clothing, in view of the fact that a sufficient bleaching effect is obtained and that it can be sold as a daily necessity without falling under a drama. , 1
It is preferably from 10 to 10% by weight, more preferably from 3 to 7% by weight.

The oxygen-based bleaching agent for clothing of the present invention is not limited as long as it has the above-mentioned foam properties, and the components thereof are not particularly limited, and a nonionic surfactant or an ionic surfactant is used as a component. It is effective to contain.

Examples of nonionic surfactants include polyoxyethylene (average number of moles added: 1 to 20) alkyl (C10 to C22) or alkenyl (C10 to C22)
Ether, polyoxyethylene (average addition mole number 1-2)
0) Polyoxypropylene (average number of added moles 1 to 20)
Alkyl (C10-22) or alkenyl (C10-22) ether, polyoxyethylene (average addition mole 1-20) alkyl (C10-22) phenyl ether, polyoxyethylene (average addition mole) 1 to
20) Sorbitan fatty acid (10 to 22 carbon atoms) ester, polyoxyethylene (average addition mole number 1 to 20) Sorbit fatty acid (10 to 22 carbon atom) ester, polyoxyethylene (average addition mole number 1 to 20) glycol fatty acid (C10-C22) ester, polyoxyethylene (average addition mole number 1-20) alkyl (C10-C22)
22) Amine, glycerin fatty acid (10 to 22 carbon atoms)
Ester, higher fatty acid (C6-10) alkanol (C2-10) amide, alkyl (C10-2)
2) Glycoside and alkyl (2 to 10 carbon atoms) amine oxide. Polyoxyethylene alkyl ethers are preferred. When the oxygen bleaching agent for clothing of the present invention contains a nonionic surfactant, it can be blended in the range of 0.01 to 10% by weight based on the weight of the oxygen bleaching agent for clothing, and 0.01 to 10% by weight. It is preferable to mix in a range of 5% by weight.

Examples of the anionic surfactant include a fatty acid salt having 8 to 22 carbon atoms, an alkylbenzene sulfonate having 8 to 16 carbon atoms, an alkyl sulfate or an alkenyl sulfate having 10 to 20 carbon atoms, and a 10 to 10 carbon atoms. 20 olefin sulfonates, alkyl ether sulfates or alkenyl ether sulfates having an alkyl group or alkenyl group having 10 to 20 carbon atoms and having an average of 0.5 to 8 mol of ethylene oxide added thereto, and having 10 to 20 carbon atoms. Examples thereof include alkyl glyceryl ether sulfonates, α-sulfofatty acid salts having 10 to 20 carbon atoms, and lower (1 to 6 carbon atoms) alkyl esters. Among these, a linear alkylbenzene sulfonate and an α-olefin sulfonate are particularly preferably used. These anionic surfactants can be used alone, but two or more anionic surfactants can be used in combination. When the oxygen bleaching agent for clothing of the present invention contains an anionic surfactant, it can be blended in an amount of 0.01 to 10% by weight based on the weight of the oxygen bleaching agent for clothing, and 0.1 to 10% by weight. It is preferable to mix in a range of 5% by weight.

In the oxygen bleach for clothing of the present invention,
It is possible to use a nonionic surfactant and an ionic surfactant as described above in combination. Although the relationship between the chemical structure of the surfactant and the foaming property is complicated, the nonionic surfactant tends to form a foam film with better foam removal than the ionic surfactant. Therefore, when these surfactants are used in combination, as the surfactant to be mainly blended,
Preferably, a nonionic surfactant is used.

In order to obtain the desired foam properties, an antifoaming component may be added to the oxygen bleaching agent for clothing of the present invention, if necessary. It is possible to determine the type of antifoaming agent to be added according to the properties of the foam, but as the foam inhibitor, it is preferable to use a compound such as a silicone resin-based antifoaming agent such as silicone or a polyamide, Methanol,
It is effective to use an antifoamer based on lower alcohols such as ethanol and isopropanol, and an antifoamer based on organic polar compounds such as phenoxyethanol and phenol (EO) ₂ (2.0 moles of ethylene oxide added to phenol). It is. When the oxygen bleaching agent for clothing of the present invention contains an antifoaming component, the content of the bleaching agent is 0.1% based on the weight of the oxygen bleaching agent for clothing.
001 to 20% by weight.
It is preferable to mix in the range of 01 to 10% by weight.

[0014] The oxygen bleach for clothing of the present invention may also contain a chelating agent. The chelating agent may be any known one, but an organic chelating agent is preferable.Examples thereof include aminopolycarboxylic acids such as ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid or salts thereof such as alkali metal salts, tripolyphosphate, and the like. Inorganic phosphorus compounds such as polyphosphates, phosphonic acids such as 1-hydroxyethane-1,1-diphosphonic acid, 2-phosphono-1,2,4-tricarboxylic acid or salts thereof such as alkali metal salts, phytic acid and the like Organic phosphate compounds and the like can be mentioned. Organic phosphonic acids are preferred from the viewpoint of bleaching power, and ethane-1-hydroxy-1,1-diphosphonic acid is particularly preferred. When the oxygen bleaching agent for clothing of the present invention contains a chelating agent, it can be blended in the range of 0.01 to 10% by weight based on the weight of the oxygen bleaching agent for clothing.
It is preferable to mix in the range of 0.1 to 5% by weight.

The oxygen-based bleaching agent for clothing of the present invention further comprises, as other components, a fragrance, a builder, a redeposition inhibitor, a hydrotrope, a hydrogen peroxide stabilizer, a discoloration inhibitor, a fluorescent brightener. , A known component usually added to a bleaching agent, such as a thickener. The oxygen-based bleaching agent for clothing of the present invention can also contain appropriate amounts of coloring agents such as dyes and pigments, microbicides, ultraviolet absorbers, and trace additives such as inorganic electrolytes. The oxygen bleaching agent for clothing of the present invention can be prepared by adding water such as ion-exchanged water to a bleaching component and other components. The pH of the oxygen bleaching agent for clothing of the present invention is not particularly limited, but from the viewpoint of improving the storage stability of the bleaching agent,
It is preferably in the range of 0.5 to 7, and more preferably in the range of 3 to 7. The viscosity of the oxygen bleaching agent for clothing of the present invention is not particularly limited as long as the bleaching agent is appropriately discharged from the container as needed, but is not more than 100 centipoise, preferably 1 to 50 centipoise. And more preferably in the range of 2 to 20 centipoise.

(2) Embodiment of a discharge container containing the oxygen bleach for clothing of the present invention The discharge container containing oxygen bleach for clothing of the present invention has a trigger type sprayer at the mouth of the container body. A discharge container equipped with a discharge device such as a pump type sprayer may be used, or a squeeze type discharge container which discharges contents in a foam or a shower by squeezing a bottle may be used. And other types of discharge containers.

Hereinafter, a first embodiment of a discharge container for accommodating the oxygen bleach for clothing of the present invention will be described.
In the first embodiment of the present invention, a trigger type foam discharge container is used. In FIG. 1, a trigger-type foam discharge container 100 of the present invention comprises an oxygen bleaching agent 10 for clothing.
2 and a support main body 106. The liquid storage member 104 is preferably a cylindrical container such as plastic. Oxygen bleach for clothing 102
The liquid storage member 104 is preferably made of a transparent material so that the remaining capacity of the liquid storage member 104 can be understood. Liquid storage member 104
The mounting portion 104a of the support body 106
Incorporated in It is preferable that the mounting portion 104a be formed by a male screw and the receiving portion 106a be formed by a female screw. By unscrewing between the mounting portion 104a and the receiving portion 106a, the required amount of the oxygen bleaching agent 102 for clothing is put into the liquid storage portion 104b of the liquid storage member 104. Or, if necessary, the oxygen bleaching agent 102 for clothing is added. Mounting part 10
Incorporation of 4a and the receiving portion 106a may use other fastening structures such as pushing, bayonet fastening and the like. A guide pipe 108 extends from the support body 106 into the liquid reservoir 104b. The guide pipe tip 108a penetrates the oxygen bleach for clothing 102. Guide pipe support 10
8b is supported by the support body 106.

Referring to FIG. 2, the foam discharge container 100 includes a discharge guide member 150 and a discharge shaft member 152. The flow path 158 is formed between the outer peripheral portion 152 a of the discharge shaft member 152 and the guide portion 150 a of the discharge guide member 150. A cylindrical portion 150b is provided downstream of the tip of the discharge shaft member 152. A discharge opening 154 is provided along the central axis 160 of the discharge shaft member 152. The tapered portion 150 c having a widened end is provided on the downstream side of the discharge opening 154. Air inlets 172 and 174 are provided downstream of the tapered portion 150c. A discharge cylinder portion 150d is provided downstream of the air inflow portions 172 and 174. When the operating lever 110 is operated to discharge the oxygen bleach for clothing 102, the oxygen bleach for clothing 102 flows in the flow path 158 in the direction of arrow 162. Next, the oxygen bleach for clothing 102 flows annularly as indicated by arrow 166 in the cylindrical portion 150b. Next, the oxygen bleach for clothing 102 passes through the discharge opening 154. During operation, the pressure decreases due to the flow of the oxygen bleach for clothing 102 being discharged, causing air to flow through the central axis 1 in the direction indicated by arrows 176 and 178.
Inflow toward 60. The mixture of the discharged oxygen bleach for clothing 102 and the inflowing air produces a large number of foamed substances 180. The foam material 180 is guided to the discharge cylinder portion 150c, and
From the outside. When the discharge container containing the oxygen bleach for clothing of the present invention is a trigger-type foam discharge container, the shape is not particularly limited as long as it satisfies the above requirements. A supporting body mounted on the top of the container, the supporting body including a discharge section with a foaming mechanism including a discharge guide member and a discharge shaft member, and the foaming mechanism includes a liquid flow path, a discharge opening, and air. It is preferable to use a trigger-type foam discharge container having an inflow portion.

Next, a description will be given of a second embodiment of the discharge container for storing the oxygen-based bleach for clothing according to the present invention. Referring to FIG. 3, the foam discharge container 201 of the squeeze container type of the present invention has a substantially cylindrical container body 202. The container body 202 includes a bottom 203, a body 204 having an elastic restoring force, and an opening 205. Torso 204
Is tapered toward the opening 205. The container body 202 is preferably formed of polypropylene, polyethylene, or polycarbonate. The thickness of the body 4 is preferably in the range of 0.1 mm to 2.5 mm. When the thickness of the body 204 is within this range, a sufficient elastic restoring force can be secured, and characteristics required for the container such as oxygen permeability can be maintained. The oxygen-based bleaching agent for clothing 230 is supplied to the liquid container 236 of the container body 202.
Is housed in A cover member 207 is attached to the opening 205. The lid member 207 has a discharge member 208 and a lid base material 209. The lid base material 209 is provided on the cylindrical wall portion 215.
, A top part 216, and an upper cylinder part 214. Tube wall 2
The inner surface of the cylinder 15 is provided with a female screw, while the opening 2
An external thread is provided on the outer periphery of 05. The cover member 207 is attached to the container body 202 by the screw fitting of the female screw and the male screw. A foam forming part 233 is provided at the central opening of the top part 216. The foam forming part 233 is provided in the body 20.
4 to mix the oxygen bleaching agent 230 for clothing in the liquid storage portion 236 of the container body 202 with air,
2 is provided. Foam forming part 233
Has a foam pipe 218, a mesh member 217 disposed between the foam pipe 218 and the container body 202, and a plug 220 that closes the top of the foam pipe 218. The mesh member 217 is a mesh member made of synthetic resin, fiber, or metal, and preferably has a wire diameter in the range of 50 to 800 μm. The mesh gap of the mesh member 217 is preferably in the range of 100 to 600 μm.

A skirt 223 extends from the central opening of the top 216 toward the side of the container body 202. The skirt 223 is cylindrical, and the mixing chamber 225 is
3 is formed inside. One end of the liquid sending tube 206 is arranged in the mixing chamber 225, and the other end is arranged at a position near the bottom 203 of the container body 202. Liquid sending tube 206
Is a tubular member made of a flexible synthetic resin, and when the body 204 is pressed, the liquid container 2 of the container body 202 is pressed.
36, the oxygen bleaching agent 230 for clothing is
It is constituted so that it may flow into. Liquid sending tube 20
The inner diameter of 6 is preferably in the range of 1 to 3 mm.
An air supply hole 224 is provided between the inside of the skirt 223 and the outer periphery of the liquid supply tube 206. The discharge member 208 is attached to the upper cylinder 214. The discharge member 208 includes a substantially cylindrical peripheral wall 210 and a discharge pipe 211 extending upward from the peripheral wall 210. The central axis of the discharge pipe 211 is not parallel to the central axis of the container body 202. Discharge pipe 2
It is preferable that the angle between the central axis of the eleventh and the central axis of the container body 202 is in the range of 10 ° to 80 °. A lower end opening 212 is formed inside the discharge pipe 211. The discharge part 213 is provided at the tip of the discharge pipe 211. Surrounding wall 2
The inner surface of the cylinder 10 is provided with a female screw, while the upper cylinder 2
A male screw is provided on the outer periphery of 14. The discharge member 208 is attached to the lid member 207 by the screw fitting of the female screw and the male screw. An air inlet 221 is provided so as to penetrate through the top part 216 and be located between the upper cylinder part 214 and the foam body forming part 233. The air intake port 221 has a lower end opening 2
12 and the liquid container 236 of the container body 202 are communicated with each other. A side flow hole 219 is provided in the foam tube 218. The foam generated by passing through the mesh member 217 flows into the discharge pipe 211 from the side flow hole 219. Liquid container 23 of container body 202
A ball check valve mechanism 222 for preventing backflow of the container air 231 from the air inlet 6 is provided at the air suction port 221. When the body 204 is pressed, the air 231 in the container of the liquid storage portion 236 does not flow backward due to the action of the check valve mechanism 222. When the pressing of the body 204 is stopped, the air introduced into the inside of the lid member 207 through the discharge pipe 211 of the discharge member 208 is discharged by the check valve mechanism 2.
The liquid is introduced into the liquid container 236 through the liquid storage section 236. In addition, when the discharge container containing the oxygen bleach for clothing of the present invention is a squeeze container type foam discharge container, the shape is not particularly limited as long as it satisfies the above requirements. A container in which a discharge member provided with a foaming mechanism is mounted above a liquid storage member having a body having fluidity, wherein the foaming mechanism is configured to mix a liquid supply tube and an air supply hole from the liquid storage member. The squeeze container-type foam discharge container is preferably characterized by having a chamber and a foam forming portion having a net member in a lower portion. In this case, the net member 217
Is a mesh member made of synthetic resin, fiber or metal, the wire diameter is preferably in the range of 50 to 800 μm, and the mesh gap is preferably in the range of 100 to 600 μm. Further, the discharge member may have an air suction port for adjusting the air pressure in the liquid storage member. The air suction port preferably includes a check valve mechanism for preventing air from flowing from the liquid storage section to the lid member.

[0021]

EXAMPLES Hereinafter, examples of the oxygen bleaching agent for clothes in a discharge container with a foaming mechanism according to the present invention, in which the discharge container is a trigger type container and a case where the discharge container is a squeeze type container, will be described. . (1) In the case of a trigger type container Preparation of oxygen-based bleach 0.1% by weight of hydrogen peroxide, a nonionic surfactant, an anionic surfactant, an antifoaming component and a chelating agent were prepared according to the formulation shown in Table 1. Was added to prepare the oxygen-based bleaches of Examples 1-4 and Comparative Examples 1-2. Examples of the nonionic surfactant include polyoxyethylene (average number of moles of 9 added) alkyl (12 to 1 carbon atoms).
4) Ether was used. As the anionic surfactant, linear alkyl (10 to 14 carbon atoms) benzenesulfonate (LAS) and α-olefin (14 carbon atoms) sulfonate (AOS) were used. Characteristics of oxygen bleach The pH of the oxygen bleach prepared as Examples 1 to 4 and Comparative Examples 1 and 2 was measured, and the oxygen bleach was stored in a trigger-type container. The foam properties were measured by (Spot) / (Spot diameter) and (Spot height one minute after application) / (Spot height at application). The spot height and spot diameter were determined by the following method. That is, at room temperature, about 2 g of the stored bleach was applied to a cotton knitted cloth in the form of a foam by operating the trigger container five times. The application was concentrated at one point so as to be as spherical as possible, and the size of the spot of the formed foam was measured with a stainless steel gauge (YAMAYO, C type first grade, full scale 150 mm). As the height of the spot, the value at the highest point of the bubble spot was adopted. The diameter of the spot was measured in two orthogonal directions, and the average value was adopted. Performance Evaluation of Oxygen-Based Bleach in Discharge Container Regarding the oxygen-based bleach contained in the trigger-type container, spot applicability, permeability to clothing, and bleaching power were evaluated by the following methods. (A) Spot applicability At room temperature, place 5 trigger containers on a cotton knitted cloth.
By turning it twice, the stored bleach is reduced to about 2
g. The state of the formed foam was visually observed, and the spot applicability was evaluated according to the following criteria. ：: Bubbles are formed intensively at one point. Δ: foamed but slightly spread. ×: Spreads almost completely without forming bubbles. (B) Permeability into clothing At room temperature, place 5 trigger containers on a cotton knitted cloth.
By turning it twice, the stored bleach is reduced to about 2
g. The state in which the foam thus formed became a liquid while breaking the foam and permeated into the cloth was visually observed, and the permeability to clothing was evaluated according to the following criteria. ：: The foam height decreases over time and quickly penetrates into the cloth. Δ: Foam height decreases with time, but penetration into cloth is slow. D: Almost no decrease in the foam height was observed even after the elapse of time, and the permeation into the cloth was very slow. (C) Bleaching power First, a dirty cloth was prepared in the following procedure. That is, after boiling 84 g of black tea (Orange Peco manufactured by Twining Co.) for 5 minutes with 4 liters of boiling tap water, the mixture was filtered with gauze,
Rapidly cooled to ° C. A cotton cloth (100 # (manufactured by Nisshinbo Industries, Ltd., 35 cm × 35 cm, 120 g)) was put into the filtrate, and left for 30 minutes with occasional stirring. After dehydration, it was air-dried. Then
1 g of the bleach contained in the container was applied to five soiled cloths (5 cm × 5 cm). After standing for 2 minutes, 15 g of detergent (Lion Co., Ltd. super top) is added
0 liter (tap water) was put into a washing tub dissolved in a bath ratio of 30 and stirred for 10 minutes. Then, dehydration was performed for 1 minute, and rinsing and dehydration for 1 minute were repeated twice for 3 minutes, and drying was performed. The reflectance of the article to be washed was measured by Nippon Denshoku Sigma 90, and the bleaching power was determined by the following equation. Bleaching power (%) = (Reflectance after washing−Reflectance of dirty cloth) /
(Reflectance of White Cloth−Reflectance of Dirty Cloth) The results are shown in Table 1.

[0022]

[Table 1] Table 1 Examples Comparative Example 1 2 3 4 12 Composition of oxygen-based bleach for clothing (% by weight) Hydrogen peroxide 55 55 55 55 Nonionic surfactant Polyoxyethylene 222 2 2 alkyl ether anionic surfactant LAS 1 0.5 0.5 5 1 AOS 1 0.5 0.5 antifoam ingredient ethanol 3 phenoxyethanol 3 phenol (EO) ₂ 3 silicone 0.01 0.1 organophosphonate ethane-1-hydroxy 0.2 0.5 1.0 0.5 0.5 0.5 1,1-diphosphonic acid

[0023]

[Table 2] Table 1 (continued) Example Comparative Example 1 2 3 4 12 Characteristics of oxygen-based bleach pH 5.5 5 5 5 5 (spot height) 0.2 0.2 0.18 0.12 0.2 0.04 / (spot diameter) (spot height after 1 minute) 0.4 0.4 0.35 0.4 0.9 0.5 / (Spot height at the time of application) Performance of oxygen bleach in discharge container Spot applicability ○ ○ ○ ○ ○ × Penetration into clothing ○ ○ ○ ○ × ○ Bleaching power (%) 36 37 37 34 29 32

(2) In the case of a squeeze-type container As in the case of the trigger-type container, the oxygen-based bleaching agents of Examples 5 to 8 and Comparative Examples 3 to 4 were prepared according to the formulations shown in Table 2, and The properties of the bleach were measured, and the performance of the oxygen bleach in the discharge container was evaluated. In addition, about 2 g of the stored bleaching agent was applied to the cotton knitted fabric in the form of a foam by operating the squeeze container for 2 seconds. Table 2 shows the results.

[0025]

[Table 3] Table 2 Example Comparative Example 5 6 7 8 3 4 Composition of oxygen-based bleach for clothing (% by weight) Hydrogen peroxide 5 5 5 5 5 5 Nonionic surfactant Polyoxyethylene 3 3 3 3 1 Alkyl anion anionic surfactant LAS 0.2 0.2 AOS 0.2 antifoam ingredient ethanol 10 2 phenoxyethanol 5 phenol (EO) ₂ 7 silicone 0.1 1 organophosphonate ethane-1-hydroxy 0.5 0.5 1 1 0.5 1 1,1-diphosphonic acid

[0026]

[Table 4] Table 2 (continued) Example Comparative Example 5 6 7 8 3 4 Characteristics of Oxygen Bleach pH 5.5 5 5 5 5 5 (Spot Height) 0.13 0.2 0.18 0.13 0.21 0.03 / (Spot Diameter) (Spot Height After One Minute) 0.4 0.5 0.4 0.5 0.80 0.4 / (Spot height at application) Performance of oxygen bleach in discharge container Spot applicability ○ ○ ○ ○ ○ × Penetration into clothing ○ ○ ○ ○ × ○ Bleaching power (%) 34 37 36 34 28 30

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a schematic structure of a first embodiment of a trigger container type discharge container for an oxygen-based bleach for clothing of the present invention.

FIG. 2 is a cross-sectional view showing a schematic structure of a discharge opening of a first embodiment of a trigger container type discharge container for an oxygen-based bleach for clothing of the present invention.

FIG. 3 is a sectional view of a second embodiment of a squeeze container type discharge container for oxygen-based bleach for clothing of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Trigger container type discharge container 102 Clothing oxygen bleach 104 Liquid storage member 106 Support body 108 Guide pipe 110 Operating lever 150 Discharge guide member 152 Discharge shaft member 154 Discharge opening 172, 174 Air inlet 201 Squeeze container type Discharge container 202 Container main body 203 Bottom part 204 Body part 205 Opening 206 Liquid feeding tube 207 Cover member 208 Discharge member 209 Cover base material 210 Peripheral wall part 211 Discharge pipe 212 Lower end opening 213 Discharge part 214 Upper cylindrical part 215 Cylindrical wall part 216 Top Part 217 Net member 218 Foam pipe 219 Side flow hole 220 Plug 221 Air inlet 222 Check valve mechanism 223 Skirt 224 Air vent 225 Mixing chamber 230 Liquid composition 231 Air in container 232 Foam 233 Foam forming part 236 Liquid Accommodation

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 7/54 C11D 7/54

Claims (2)

[Claims] 1. An oxygen bleaching agent for clothing housed in a discharge container with a foaming mechanism, wherein (spot height) / (spot diameter) when applied in the form of a spot is from 0.1 to 0.1.
An oxygen-based bleaching agent for clothing, wherein the height is within 0.5 and the height of a spot after one minute from the time of application is 0.5 or less at the time of application. 2. It contains an antifoaming component,
The oxygen-based bleach for clothing according to claim 1.