JPH1081894A - Bleaching detergent product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bleaching detergent product contained in a squeezable foam container, prevented from causing the swelling of the container due to the decomposition of the bleaching agent because of controlled decomposition of the bleaching agent even in long-term storage. SOLUTION: A liquid composition A containing at least a bleaching agent and a surface active agent is filled into such a squeezable foam container 2 that the contained liquid is delivered in the form of a foamed material C from a spout 22 when the body part 12 is squeezed, the body part 12 being is made from a synthetic resin having an oxygen permeability at 25 deg.C of at least 500 ml.25.4μm/m<2> .24hr.atm, and the pH of the liquid composition being adjusted to 2 to 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid bleach detergent in a squeeze foam container in which the decomposition of the bleach is suppressed even during long-term storage, and the blister of the container caused by the decomposition of the bleach is prevented.

[0002]

2. Description of the Related Art A liquid bleaching detergent in which a bleaching agent such as sodium hypochlorite and a surfactant are used for the purpose of cleaning and bleaching or disinfecting clothes, dishes, furniture, toilet bowls and the like is used. . When this liquid bleaching detergent is marketed for home use, it is generally often filled in a so-called "squeeze container". This squeeze container has a synthetic resin body having elastic restoring force, and an openable and closable spout formed on the top thereof. When the spout is opened and the body is pressed by hand (squeeze), An appropriate amount of the liquid bleaching detergent filled therein is discharged from the spout. When the squeeze container is not used, the spout is closed to prevent the liquid bleaching detergent from leaking due to tipping over or vibration.

[0003]

Bleaching agents such as sodium hypochlorite gradually decompose in solution during storage to generate oxygen gas. Since this decomposition reaction is accelerated by the presence of light heat, heavy metals contained in trace amounts as impurities, and surfactants, the liquid bleaching detergent filled in the squeeze container gradually increases the bleaching power during long-term storage. In addition, the squeeze container may generate an odor while being reduced, and the squeeze container may expand and deform due to the expansion pressure of the oxygen gas generated with the spout closed.

[0004] Various attempts have been made to solve this problem. For example, JP-B-38-6268, JP-B-43-2103, JP-B-48-10
No. 86, JP-A-51-37903, etc.
Surfactants or combinations of surfactants that can stably coexist with bleaching agents such as sodium hypochlorite have been proposed. Japanese Patent Application Laid-Open No. 62-89800 proposes a technique for suppressing the decomposition of a bleaching agent by adding a specific flavor to a liquid bleaching detergent. However, these specific surfactants are expensive, and it has been difficult to substantially completely suppress the decomposition of the bleaching agent only by selecting the surfactant and the fragrance.

[0005] Containers have also been proposed to prevent blistering by liquid bleaching detergents. For example, JP-A-1-242640 proposes a container containing polyoxyethylene alkylamine and titanium oxide in order to suppress the photolysis of the bleaching agent. However, this container also cannot prevent decomposition due to factors other than light, and thus could not substantially suppress the swelling of the container.

[0006] Since the effect of suppressing the swelling of the container by any of the above proposals was insufficient, in practice, a relatively rigid synthetic resin such as polyethylene terephthalate was used to withstand a certain degree of turgor pressure. A squeeze container having a thick wall has been used. However, this squeeze container was inconvenient to use, for example, because the body was hard, requiring excessive force for pressing (squeezing) by hand.

[0007] In addition, a liquid bleaching detergent contained in a usual squeeze container has a bleaching component that is poured out of a spout as a liquid, so that it penetrates quickly into an object such as a cloth and can be applied uniformly over a wide range. However, there is a problem that it is difficult to cause bleaching unevenness. Furthermore, if a part of the target object is to be bleached and washed, if applied to that part, the boundary between the bleached part and the unbleached part due to the adhesion of the liquid agent may become clear, making it difficult to see. . Further, there is a possibility that the bleaching agent adheres to unnecessary portions due to dripping from the spout, causing decolorization of the dyed product.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to suppress the decomposition of a liquid bleaching detergent during storage and prevent the container from swelling due to the decomposition of the bleaching agent. It is an object of the present invention to provide a bleaching detergent product in a container which is prevented from causing bleaching unevenness when applied to an object to be bleached and washed.

[0009]

According to the present invention, there is provided a liquid composition comprising at least a bleaching agent and an anionic and / or nonionic surfactant. Having a discharge port formed in an opening, when the body is pressed, the liquid composition is filled into a squeeze foam container that is discharged as a foam from the discharge port, At least a part of the trunk has an oxygen permeability at 25 ° C. of 500 ml · 25.4.
A bleaching detergent product comprising a synthetic resin having a viscosity of at least μm / m ² · 24 hr · atm, wherein the liquid composition is adjusted to have a pH in the range of 2 to 7.

The squeeze foam container comprises a container body having a bottom, a body, and a top opening, and a lid member hermetically mounted on the top opening, and the lid member is pressed against the body. A foaming unit that mixes the liquid composition and the air sent from the inside of the container body to generate a foam, and a discharge port that discharges the generated foam. Is preferred.

The foaming means includes a liquid supply tube attached to the lid member and extending inside the container body to near the bottom thereof, and a liquid composition sent through the liquid supply tube when the body is pressed, by air. A mixing chamber to mix with, and an air supply hole that sends air in the container body to the mixing chamber when the body is pressed, and a gas-liquid mixture obtained in the mixing chamber is passed through to generate foam, It is preferable to have a net member for generating a foam, and a foam pipe for feeding the foam generated by the net member toward the discharge port.

At least a part of the body is made of polypropylene, polyethylene, polycarbonate, and poly-4
-Methylpentene-1 is preferably one or more selected from the group.

The above liquid composition contains 0.5% to 10% by weight of a bleaching agent comprising at least one of hydrogen peroxide, sodium hypochlorite, dichloroisocyanuric acid and trichloroisocyanuric acid. It is preferable to include within the range.

The above liquid composition preferably contains an anionic and / or nonionic surfactant in a range of 1% by weight to 50% by weight. At least a part of the surfactant is an anionic surfactant, and the anionic surfactant is an α-olefin sulfonate (AO
S), sodium linear alkyl benzene sulfonate,
It is preferable selected from the group of polyoxyethylene alkyl ether sulfates and C ₈ -C ₁₈ fatty acid methyl ester sulfonate is either 1 or more. In addition, at least a part of the surfactant is a nonionic surfactant, and the nonionic surfactant is at least one selected from the group consisting of polyoxyethylene alkyl ether and polyoxyethylene nonylphenyl ether. Is preferred.

[0015] In addition to the above-mentioned components, the above liquid composition comprises
pH adjusting agents, builders, polyalkylene (C ₂ ~C ₆₎ glycol alkyl (C ₁ ~C ₅₎ ether, a lower (C ₁ ~
C ₄ ) Additives such as alcohols, alkylene glycol derivatives, enzyme agents, chelating agents, fluorescent agents, and dyes can be included.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the accompanying drawings. (Example 1) FIG.
(Referred to as “this product”). In FIG. 1, the product 1 of Example 1 is composed of a squeeze foam container (hereinafter, referred to as “the present container”) 2 and a liquid composition (hereinafter, referred to as “the present composition”) A filled therein. .

The container 2 is made of polypropylene having an elastic restoring force and has a substantially elliptical bottom 11, a substantially elliptical cylindrical body 12, and a top cylindrical opening 13. And a lid member 20 hermetically mounted in the opening 13.

The lid member 20 includes a foaming means 30 for mixing the liquid composition A and the air B sent from the inside of the container body 10 when the body portion 12 is pressed to form a foam C, And a discharge port 22 for discharging the generated foam C.

The foaming means 30 is attached to the lid member 20 and extends through the inside of the container body 10 to the vicinity of the bottom 11 thereof, and the liquid is sent through the liquid sending tube 21 when the body 12 is pressed. A mixing chamber 32 for mixing the liquid composition A with the air B, an air supply hole 31 for feeding the air B in the container body 10 to the mixing chamber 32 when the body 12 is pressed, and the mixing chamber 32. The gas-liquid mixture obtained in the above is caused to pass through to generate foam, and a mesh member 33 for generating a foam C, and a foaming foam for foaming the foam C generated by the mesh member 33 toward the discharge port 22 And a tube 34. This net member 33
Is made by weaving nylon filaments in a net shape.

The composition A contains 3% by weight of hydrogen peroxide and 14% by weight of a surfactant as a bleaching agent, and is adjusted to pH 3.

The above-mentioned surfactants are, as anionic surfactants, 1% by weight of α-olefin sulfonate (AOS), 3% by weight of sodium polyoxyethylene lauryl ether sulfate, and polyoxyethylene (3% by weight) as a nonionic surfactant. 10) alkyl (C ₁₂ -C ₁₃₎
The composition of the ether is 10% by weight.

Next, the method of use and operation of the product 1 will be described. When the product 1 is bleached and washed, when the body 12 is pressed (squeezed) by hand with the container 2 upright, the composition A in the container body 10 is
Depending on the degree of pressing, a part of the liquid is sent from the upper end 23 to the mixing chamber 32 through the liquid sending tube 21 by the internal pressure.

On the other hand, the air B stored on the liquid surface of the container body 10 is supplied into the mixing chamber 32 through the air supply holes 31 by the increase of the internal pressure due to the pressing of the body portion 12, and Is mixed with the present composition A to form a gas-liquid mixture. The formed gas-liquid mixture is pushed out of the mixing chamber 32 by the subsequent pressing, and the mesh member 33 is pressed.
The bubbles in the gas-liquid mixture are fragmented by passing through the mesh at this time, and a fine foam C having fine bubbles is generated, and is discharged from the discharge port 22.

Next, when the container 2 is inverted and the foam C is applied to the object, the foam C is uniformly applied to the object, and the bleaching composition which has become liquid with defoaming is applied to the object. Penetrates into the tissue and realizes effective bleaching and washing without unevenness. At this time, when the main container 2 is in an inverted state,
Since the air B inside moves to the bottom 11, the liquid feeding tube 2
The lower end of 1 is in the air layer, so that the excess liquid composition does not leak from the discharge port 22 through the liquid sending tube 21 and cause dripping.

The container 2 can generate a foam C even when the body 12 is pressed in an inverted state, and in this case, the composition A passes through the air supply hole 31 and the mixture A Into the mixing chamber 32, and the air B
It will be sent inside. Thereafter, in the mixing chamber 32, the composition A and the air B are mixed, and the process in which the gas-liquid mixture passes through the mesh member 33 to generate the foam C is the same as that in the upright case.

Since the present composition A contains hydrogen peroxide as a bleaching agent, a nonionic surfactant and an anionic surfactant in a suitable ratio as described above, the bleaching and cleaning effect on the object is achieved. Is very good.

Since the pH of the composition A is adjusted to 3, the decomposition of hydrogen peroxide is suppressed, and a stable bleaching / cleaning effect is maintained over a long period of time. The container body 10 is made of polypropylene, and the oxygen permeability of the polypropylene is about 2000 to 4000 ml · 25.4 μm / m ^2.
Since it is as high as 24 hr · atm, even if oxygen is generated in the container body 10 due to decomposition of hydrogen peroxide during storage of the product 1, this oxygen is transmitted through the body wall and diffused, and
Does not swell due to internal pressure.

Next, the structure of the container 2 will be described in more detail. The lid member 20 of the container 2 is configured by a combination of a discharge member 24 and a lid base material 25. The discharge member 24 includes a substantially cylindrical peripheral wall 26 and the peripheral wall 26.
And a discharge pipe 27 formed integrally therefrom and extending therefrom. The discharge pipe 27 has a lower end opening 28 formed on the peripheral wall 26.
The opening is downwardly open on the center of the axis, and is curved at an intermediate portion to open the discharge port 22 obliquely upward. Surrounding wall 26
A screw is formed on the inner peripheral surface of the lower part, and the screw is air-tightly screwed with a screw formed on the outer peripheral surface of the cylindrical upper cylinder portion 41 protruding from the lid base material 25. ing.

The cover base material 25 is formed into a substantially closed cylindrical shape having a cylindrical wall portion 42 and a top portion 43 having an open central portion, and a thread is formed on the inner peripheral surface of the cylindrical wall portion 42. The screw is air-tightly screwed and fixed to a screw formed on the outer peripheral surface of the opening 13 of the container body.

The upper cylindrical portion 41 projects upward from the periphery of the central opening of the ceiling portion 43 and is provided inside the upper cylindrical portion 41 so as to cover the central opening. Are inserted, and a foaming tube 34 for foaming the foam C generated by the meshing member 33 is inserted. The lower end opening 28 of the discharge pipe 27 is fitted to the upper end of the foam pipe 34 via a connecting pipe 36 having a side flow hole 35 for allowing the foam C to flow toward the discharge pipe 27. Plug 3 shaped like
7 is mounted. When the discharge member 24 is screwed clockwise with respect to the lid base material 25, the plug 37 closes the discharge pipe 27 by fitting with the lower end opening 28 of the discharge pipe, and is unscrewed counterclockwise. When opened, lower end opening 2 of discharge pipe
8 is opened. Although not shown, the ejection member 24 and the lid base member 25 are provided with stoppers that engage with each other so that the counterclockwise unscrewing cannot be performed more than the limit.

A cylindrical skirt 44 is hung around the central opening of the top 43 of the lid base material. In the skirt 44, the mixing chamber 32 and the air supply hole 31 are provided.
And a foaming member 45 having a tube receiving hole into which the liquid feeding tube 21 is fitted and fixed to the lid member 20, is inserted and fixed.

This product having the above-described structure is stored during storage.
If the discharge member 24 is screwed into the lid base material 25, the lower end opening 28 of the discharge pipe 27 is closed by the plug 37, so that even if the container is overturned, the internal composition A inside the container is turned over.
Does not leak.

In use, when the discharge member 24 is unscrewed to open the discharge pipe 27 and the body 12 of the container body is pressed, the discharge pipe 27 is opened. A passes through the liquid feed tube 21 and passes through the mixing chamber 32.
, Where it is mixed with the air supplied from the air supply holes 31, passed through the mesh member 33 and foamed, and the generated foam C
Is introduced into the lower end opening 28 from the inside of the cylinder of the discharge member 24 through the side flow hole 35 of the connection pipe 36 from the foam supply pipe 34, and is discharged from the discharge port 22 through the discharge pipe 27.

After the desired amount of foam has been discharged, the body 12
When the pressing is released, since the body 12 is formed of polypropylene having an elastic restoring force, it returns to the shape before the pressing. At this time, the foam C remaining in the discharge pipe 27 is drawn back inside, and the outside air introduced through the discharge pipe 27 flows back through the air supply hole 31 and is introduced into the container body 10, and the inside and outside air pressures are balanced. Is done. In this state, the discharge member 2
When the screw 4 is screwed into the lid base material 25, the discharge pipe 27 is closed, and the internal composition A does not leak even when the container is turned over.

In this product, at least a part of the body of the container body has an oxygen permeability at 25 ° C. of 500.
It is molded using a synthetic resin having a capacity of at least ml · 25.4 μm / m ² · 24 hr · atm. When the trunk is oxygen-permeable, it is possible to prevent the container from swelling due to gas generated from the composition.

The oxygen permeability is 500 ml · 25.4 μm /
Examples of a preferable synthetic resin having m ² · 24 hr · atm or more and having both rigidity and elastic return force as a container body of a squeeze container include, for example, polypropylene, polyethylene, polycarbonate, and poly-4-methylpentene-1. And the like.

An example of the measured value of the oxygen permeability (ml · 25.4 μm / m ² · 24 hr · atm) of the synthetic resin at 25 ° C. is shown below. Polypropylene (1): 4140 Polypropylene (2): 2350 Low density polyethylene (d = 0.92): 7510 High density polyethylene (d = 0.555): 1500 Polycarbonate: 3880 Poly 4-methylpentene-1: 62140

In the above, the difference in the oxygen permeability between the polypropylenes (1) and (2) is due to the difference in the degree of orientation of each polymer crystal. In general, the higher the degree of orientation of a polymer, the lower the gas permeability. However, even if the above synthetic resin is crystalline and has a high degree of orientation, it is 500 ml · 25.4 μm / m ² · 24.
Since it has an oxygen permeability of at least hr · atm, it can be suitably used as a molding material for the container body in the present product. In particular, considering comprehensively the oxygen permeability, rigidity, elastic restoring force, physical properties required for a squeeze container, moldability, availability, price, etc., at least the container body of this container should be made of polypropylene. Is preferred.

In consideration of the oxygen permeability, the physical properties required for the liquid packaging container, and the elastic restoring force, the thickness of the body of the container body is in the range of 0.1 mm to 2.5 mm, especially It is preferable that the distance be in the range of 0.7 mm to 1.5 mm.

Next, the composition of the composition A will be described in detail. The composition filled in the container body is a liquid containing at least a bleaching agent and a surfactant. As the bleaching agent that can be used in the present composition, any of those generally used for home use or the like can be used. Examples include, for example, hydrogen peroxide, sodium hypochlorite,
Examples thereof include dichloroisocyanuric acid and trichloroisocyanuric acid.

The above-mentioned bleaching agent is preferably contained in the composition in the range of 0.5% by weight to 10% by weight. When the bleaching agent is less than 0.5% by weight, a sufficient bleaching effect cannot be obtained when the bleaching agent is applied to a target as a foam. If the content exceeds 10% by weight, inconveniences such as easy occurrence of uneven bleaching occur. In this respect, a more preferred concentration of the bleach is in the range of 1% to 5% by weight.

It is preferable that at least a part of the surfactant is a nonionic surfactant. Nonionic surfactants not only generally have a high cleaning effect against oil stains and the like, but also give a suitable viscosity to the present composition, and form a foam having fine and suitable hardness by passing through a mesh member together with air. Can be generated. The nonionic surfactant is preferably at least one selected from the group consisting of polyoxyethylene alkyl ether and polyoxyethylene nonylphenyl ether.

It is preferable that at least a part of the surfactant is an anionic surfactant. Anionic surfactants have a particularly high cleaning effect on aqueous stains and dust stains. The anionic surfactant is at least one selected from the group consisting of α-olefin sulfonate (AOS), sodium linear alkyl benzene sulfonate, polyoxyethylene alkyl ether sulfate, and C ₈ -C ₁₈ fatty acid methyl ester sulfonate. It is preferred that These are stable in the range of pH 2 to 7, and in particular, sodium polyoxyethylene lauryl ether sulfate has a high detergency, has a viscosity adjusting effect, and is environmentally friendly, and thus is suitable as at least a part of an anionic surfactant. Can be used for

The present composition comprises the above-mentioned nonionic surfactant and / or anionic surfactant in a total amount of 1% by weight or less.
Preferably, it is contained within the range of 50% by weight. If the amount is less than 1% by weight, it is difficult to foam the composition with air, and the penetrating power and detergency to the tissue of the target object become weak. If it exceeds 50%, the composition becomes excessively viscous, and a strong pressing force is required when passing through the mesh member,
Practicality decreases. From this viewpoint, it is further preferable that the surfactant comprises an anionic surfactant and a nonionic surfactant, and the surfactant is contained in the liquid detergent within a range of 4% by weight to 20% by weight. .

The composition is adjusted to have a pH in the range of 2 to 7. The present inventor has found that, when the pH of the composition is maintained in the range of 2 to 7, generation of gas derived from the decomposition of the bleaching agent is particularly suppressed for a long period of time, and is associated with the oxygen permeability of the container. The present inventors have found that the blister of the present container can be effectively prevented, and arrived at the present invention. The pH of the present composition can be adjusted to the above range by adding a pH adjuster if necessary. Examples of the pH adjuster include a buffer such as sodium phosphates, an acid such as citric acid, and an alkali such as sodium hydroxide.

The composition comprises the above-mentioned bleaching agent, surfactant,
And, if necessary, other than pH adjusters, impair these functions.
Used in ordinary bleaching or detergent applications
Additives such as builders, polyalkylenes (C_Two~
C₆) Glycolalkyl (C ₁~ C_Five) Ether, lower
(C₁~ C_Four) Alcohol, alkylene glycol derived
Contains body, enzyme agents, chelating agents, fluorescent agents, dyes, etc.
Needless to say, Also, the stability of the bleach
To improve, for example, 1-hydroxyethylidene-
It is preferable to add a stabilizer such as 1,1-diphosphonic acid.
Good.

The configurations of the present container and the present composition described above are not limited to Example 1 described above. For example, this product may have the configuration of the second embodiment shown in FIG.

(Embodiment 2) In the following description of Embodiment 2, the same elements as those of Embodiment 1 described with reference to FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted or simplified. Become In FIG. 2, the present product 3 of Example 2 is composed of the present container 4 and the present composition A filled therein.

The container 4 includes a container body 10 similar to that of the first embodiment, and a lid member 50 hermetically mounted in the opening 13. The lid member 50 is connected to the ejection member 5.
1 and a lid base material 52. The discharge member 51 includes a substantially cylindrical peripheral wall portion 53,
A discharge pipe 54 is formed integrally from the upper portion of the peripheral wall portion 53 and extends therefrom. The discharge pipe 54 has a lower end opening 5
5 is located on the axis of the peripheral wall portion 53 and is opened toward the foaming means 60, and is curved at an intermediate portion to open the discharge port 56 diagonally upward. A screw is formed on the lower inner peripheral surface of the peripheral wall portion 53, and the screw is air-tight with a screw formed on the outer peripheral surface of the cylindrical upper cylinder portion 57 protruding from the lid base material 52. It is screwed.

The lid base material 52 is formed into a substantially closed cylindrical shape comprising a cylindrical wall portion 58 and a top portion 59 having an open central portion, and a thread is formed on the inner peripheral surface of the cylindrical wall portion 58. This screw is air-tightly screwed and fixed to a screw formed on the outer peripheral surface of the opening 13 of the container body.

The upper cylindrical portion 57 is provided so as to project upward from the periphery of the central opening of the top portion 59. Inside the upper cylindrical portion 57, a mesh member 61 for covering a central opening of the top portion 59 is provided.
And a foam pipe 62 protruding around the pipe, and the foam pipe 6
The side flow holes 63 formed at the upper end of the second tube 2 to allow the foam C to flow out toward the discharge pipe 54, and are fitted to the top of the foam pipe 62 and fitted to the lower end opening 55 of the discharge pipe 54. And a plug body 64 formed in the same shape.

When the discharge member 51 is screwed clockwise with respect to the lid base material 52, the plug 64 closes the discharge pipe 54 by fitting with the lower end opening 55 of the discharge pipe.
When the screw is unscrewed counterclockwise, the lower end opening 55 of the discharge pipe 54 is opened. Although not shown, the discharge member 51 and the lid base material 52 are provided with stoppers that engage with each other so that the screw can not be returned counterclockwise more than the limit.

An air suction hole 65 penetrating through the top 59 is provided in the top 59 between the upper cylinder 57 and the foam pipe 62.
A ball-type check valve mechanism 66 for preventing backflow of air B from the container body 10 is formed in the air suction hole 65.
The air in the cylinder of the lid member 50 is supplied into the container body 10 through the check valve mechanism 66 and the air suction hole 65, and the backflow is prevented.

A cylindrical skirt 67 is hung around the opening at the center of the top 59 of the lid base material and inside the air suction hole 65.
1 are inserted with a gap therebetween so as to form a mixing chamber 69 between the upper end and the net member 61. Skirt 67
A plurality of grooves (68) are formed in the inner wall in the axial direction, and the grooves (68) form an air supply hole 68 from inside the container body 10 to the mixing chamber 69.

In the product 3 of the second embodiment, if the discharge member 51 is screwed into the lid base material 52 during storage, the discharge pipe 54 is closed by the plug 64, so Even if it falls, the inside of the present composition A does not leak.

In use, when the discharge member 51 is unscrewed and the body 12 of the container body is pressed, the discharge pipe 54 is opened, and the composition A in the container body 10 To the mixing chamber 69, where it mixes with the air B supplied from the air vent 68, passes through the mesh member 61 and is foamed. After passing through the hole 63, it is introduced into the lower end opening 55 from inside the cylinder of the discharge member 51, passes through the discharge pipe 54, and is discharged from the discharge port 56.

At this time, since the backflow of the air B in the container body is prevented by the check valve mechanism 66, the air B is not leaked through the air suction hole 65, the pressing force is not wasted, and the composition A is fed. Is used for mixing the air in the mixing chamber 69, and even with a weak pressing force, a fine-grained foam can be generated and a sufficient amount of discharge can be performed.

After the desired amount of foam has been discharged, the body 12
Is released, the body 12 returns to the state before the pressing. At this time, the foam C remaining in the discharge pipe 54 is drawn back inside, and the outside air introduced through the discharge pipe 54 is supplied to the container until the inside and outside pressures are balanced through the check valve mechanism 66 and the air suction hole 65. It is introduced into the main body 10. If the discharge member 51 is screwed into the lid base material 52 in this state, the discharge pipe 54 is closed, so that even if the container is overturned, the internal composition A does not leak.

When the mechanism of the second embodiment is used, the air supply hole 68 and the air suction hole 65 are provided independently of each other, so that the diameter can be designed to suit each purpose. Even when the pressure is weak, a sufficient amount of good-quality foam C is generated, and when the pressing is released, the outside air is introduced into the container body 10 with a small air resistance, and the dent of the body 12 can be quickly restored.

(Test Example) Using the product of Example 1 shown in FIG. 1 and a container having the same shape as in Example 1,
However, samples (Examples 3 and 4) in which the material of the container body and the composition and pH of the present composition were variously changed within the scope of the present invention were prepared, and the storage stability of these samples was tested. did.

(Comparative Examples 1 to 3) A container having the same shape as in Example 1 was used, except that the material of the container body, the composition of the composition, or the pH was out of the range of the present invention. These samples were prepared and tested for storage stability in the same manner.

In the storage stability test, each container was filled with 200 ml of each composition, and the discharge member 24 shown in FIG. 1 was screwed clockwise with respect to the lid base material 25 to open the lower end opening 28 of the discharge tube. In the closed state, the container was stored at 50 ° C. for one month, and the appearance (bulging) of the container and the degree of decomposition of the composition were evaluated by odor. The test results were represented by the following four-grade evaluations. A: Almost no change from before storage. ○: slightly changed before storage. Δ: clearly changed from before storage. ×: greatly changed compared to before storage. Table 1 shows the results.

In Table 1, the components of the composition are represented by the following abbreviations, and all the numerical values of the compositions are% by weight. AOS; alpha-olefin sulfonates LES; sodium polyoxyethylene lauryl ether sulfate POE; polyoxyethylene (10) alkyl (C ₁₂ ~
C ₁₃ ) ether HEDP; 1-hydroxyethylidene-1,1-diphosphonate sodium DEGB; diethylene glycol monobutyl ether

In Table 1, the container materials are indicated by the following abbreviations. PP; polypropylene LDPE; low-density polyethylene (d = 0.92) PC; polycarbonate PET; polyethylene terephthalate (oxygen permeability at 25 ° C .; 70 ml · 25.4 μm / m ² · 24 hr)
・ Atm)

[0065]

[Table 1]

From the results shown in Table 1, the oxygen permeation at 25 ° C.
The degree is 500ml ・ 25.4μm / m ^Two・ 24hr ・ at
m, polypropylene, low density polyethylene,
Squeeze in which the container body is molded from polycarbonate and polycarbonate
In a foam container, containing a bleaching agent and a surfactant, and having a pH of 2 to 7
Example in which the composition adjusted within the range of is filled
The products of Examples 1, 3 and 4 were obtained at a temperature of 50 ° C.
Even after months of storage, it comes from blisters and decomposition of contents
Almost no odor, showing excellent long-term stability
Was.

On the other hand, even when the composition was the same as that of Example 1, in the case of Comparative Example 2 in which this composition was filled in a container body made of polyethylene terephthalate having low oxygen permeability, after storage for a long time, Although the decomposition odor of the contents was small, the swelling of the container was large and the practicality was low.

The oxygen permeability is 500 ml · 25.4 μm /
Comparative Example 1 in which the pH was adjusted to basic, even when the composition containing a bleaching agent and a surfactant was filled in a synthetic resin container body having a m ² · 24 hr · atm or more, and In Comparative Example 3 in which the pH was adjusted to be strongly acidic, although the swelling of the container was relatively small after long-term storage, the decomposition odor of the contents became large, indicating that the decomposition of the bleaching agent was progressing.

[0069]

The bleaching detergent product of the present invention comprises a bleaching agent and an anionic and / or nonionic surfactant,
Is adjusted to be in the range of 2 to 7, the oxygen permeability is 500 ml · 25.4 μm / m ² · 24 hr · at
m or more, the composition is filled in a synthetic resin squeeze foam container, so that the composition has high decomposition stability even during long-term storage, and prevents blistering of the container due to the decomposition of the bleaching agent. In use, a highly practical bleaching detergent product which is excellent in bleaching effect and washing effect and generates a foam in which bleaching unevenness hardly occurs is obtained.

The squeeze foam container comprises a container body and a lid member. The lid member mixes the liquid composition and air to generate foam, and discharges the generated foam. The foaming means further comprises a liquid sending tube extending to near the bottom of the container body, a mixing chamber for mixing the sent liquid composition with air, and air in the container body. An air supply hole for supplying air to the mixing chamber, and a foam member for allowing the obtained gas-liquid mixture to pass therethrough to generate a foam, and a foam member to generate a foam, and a foam tube for blowing the foam toward the discharge port. As long as the composition in the container body is completely consumed by the pressing of the body and the foaming power of the surfactant without using a special foaming agent, fine and high-quality foam is used. It can be discharged as a body, and a highly practical bleaching detergent product can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bleach detergent product (this product) 2 ... Squeeze foam container (this container) A ... Liquid composition (this composition) B ... Air in a container C ... Foam 10 ... Container body 12 ... Body 20 ... Lid member 21 ... liquid sending tube 22 ... discharge port 30 ... foaming means 31 ... air supply hole 32 ... mixing chamber 33 ... net member

Claims (6)

[Claims] 1. A liquid composition comprising at least a bleaching agent and an anionic and / or nonionic surfactant has a body having elastic restoring force and a discharge port formed in a top opening, and the body is pressed. When the liquid composition is filled, the liquid composition is filled into a squeeze foam container that is discharged as a foam from the discharge port.
Oxygen permeability at 500 ml · 25.4 μm / m ²
-A bleaching detergent product comprising a synthetic resin having a pressure of 24 hr.atm or more, and wherein the liquid composition is adjusted to have a pH of 2 to 7. 2. The squeeze foam container comprises a container body having a bottom, a body, and a top opening, and a lid member hermetically mounted on the top opening. Having foaming means for mixing the liquid composition and air sent from the inside of the container body to generate a foam when discharged, and a discharge port for discharging the generated foam. The bleaching detergent product of claim 1, wherein 3. A liquid supply tube attached to the lid member and extending to the vicinity of the bottom of the container body, and a liquid composition sent through the liquid supply tube when the body is pressed. A mixing chamber for mixing the air with the air, an air supply hole for supplying the air in the container body to the mixing chamber when the body is pressed, and a gas-liquid mixture obtained in the mixing chamber is passed to generate foam. And a foam member for producing a foam, and a foam pipe for supplying the foam produced by the mesh member toward the discharge port. A bleaching detergent product according to claim 1. 4. The method according to claim 1, wherein at least a part of the body is made of at least one selected from the group consisting of polypropylene, polyethylene, polycarbonate, and poly-4-methylpentene-1. A bleaching detergent product as described. 5. The liquid composition contains 0.5% by weight of a bleaching agent comprising at least one selected from the group consisting of hydrogen peroxide, sodium hypochlorite, dichloroisocyanuric acid, and trichloroisocyanuric acid. The bleaching detergent product according to claim 1, wherein the bleaching detergent product comprises in the range of 10% to 10% by weight. 6. The liquid composition according to claim 1, wherein the liquid composition comprises an anion and / or
The bleaching detergent product according to claim 1, wherein the bleaching detergent product contains a nonionic surfactant in a range of 1% by weight to 50% by weight.