JP2003525820A - Gas permeable container - Google Patents

Abstract

  (57) [Summary] The container includes a housing having an inner portion and an outer portion. The inner portion defines an internal surface area that includes a three-dimensional pattern that increases the internal surface area by at least about 20% as compared to a container that does not have a three-dimensional pattern. The internal surface area is also_TwoDefines the volume of the container containing the generating composition. O_TwoThe generating composition fills less than about 95% of the container volume. The container should have at least about 0.3 mL _Two/ Atmospheric pressure / 24 hours / container volume L O_TwoHas a passing speed.   

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a container. In particular, the invention relates to a container for holding a gas-releasing composition.

[0002]

[Prior art]

Oxygen bleach-containing compositions are very popular for cleaning clothes and fabrics and for removing mold. The oxygen bleaching agent is preferable because it has less bad odor than the bleaching agent mainly containing hypochlorite and has no problem with colored materials.

Liquid and solid oxygen bleaches decompose during transportation and / or storage to O ₂
Generates gas. This is especially likely when the oxygen bleach is included in the liquid composition. If the container is airtight, the generated O ₂ gas will accumulate in the container, causing an unsightly bulge or even destruction of the container. Bulging and breaking of such containers is highly undesirable.

This problem is addressed by forming a container that allows the O ₂ gas generated to pass through a venting mechanism such as a valve. When O ₂ gas is generated, the O ₂ gas is typically rises to the top of the vessel, typically through the valve disposed at the highest position of the container. The venting mechanism allows the gas to pass while retaining the liquid and / or solid within the container. Such containers and / or venting mechanisms are typically difficult, expensive and / or complex to construct and assemble. In some cases, such venting mechanisms even require manual assembly, which adds significantly to manufacturing costs. Furthermore, such a venting mechanism only allows O ₂ to pass through during shipping and storage with the container oriented vertically. When the container is transported or stored upside down or upside down, the venting mechanism is no longer located at the highest point of the container, so the O ₂ gas generated is unlikely to collect near the venting mechanism. In this case, the generated O ₂ gas passes through the ventilation mechanism very little, if any, so that the O ₂ gas accumulates in the container.

Alternatively, some materials, such as plastics and polymers, allow O ₂ gas to pass directly through the material itself. The amount of gas passing through such materials depends on such factors as the internal surface area of the container, the thickness of the material, the internal filling volume of the liquid, the atmospheric pressure and the partial pressure of the gas, the type of gas itself, and the time. ing. With such a container, the generated O ₂ gas collects at the top of the container and passes through the material in the upper part of the container. Therefore, it is known to make containers from such gas-passing materials in order to retain the liquid that produces O ₂ gas.

However, these containers are only designed with one orientation in mind. Such containers do not allow for the possibility of the container being transported and / or stored sideways or upside down. In such a typical container, the bottom is thicker than the top and sides, giving the container greater structural rigidity. Since the gas passage rate of the material is inversely proportional to the thickness of the material, a thick bottom will have a much slower gas passage than a thin top. Therefore, in the upside-down container, sufficient gas may not pass through the thick bottom, and O ₂ gas may still be accumulated in the container to increase the pressure.

Other vessels are known which contain a silver halide photographic processing solution which precipitates when insufficient O ₂ is present in the vessel. To increase the rate of O ₂ passage into the container, the container has a bellows-shaped body that increases the surface area of the container. The increased surface area thus deposits more O ₂ in the container and thus reduces the precipitation of photographic bleach. Such processing solutions practically do not release O ₂ gas, but instead react with O ₂ gas.

[0008]

[Problems to be Solved by the Invention]

Therefore, there is a need for a container that provides improved O ₂ breathability independent of container orientation. What is also needed is a container that provides the above advantages and is inexpensive to manufacture.

[0009]

[Means for Solving the Problems]

The present invention relates to a container including a housing having an inner portion and an outer portion. The inner portion defines an internal surface area that includes a three-dimensional pattern and increases the internal surface area by at least about 20% compared to a container that does not have a three-dimensional pattern. This internal surface area also defines the vessel volume that contains the O ₂ -generating composition therein. The O ₂ -generating composition fills less than about 95% of the container volume. The vessel has an O ₂ passage rate of at least about 0.3 mLO ₂ / atm for 24 hours and a vessel volume L independent of vessel orientation.

It has now been found that it is possible to produce containers that are structurally sound and that have an acceptable O ₂ passage rate regardless of the container orientation. The container can contain the O ₂ -generating composition therein without bulging or bursting even when not transported / stored in a vertical orientation.
The three-dimensional pattern of the inner surface increases the O ₂ passage rate and can also increase the structural strength of the container. The container is easy to manufacture and does not require expensive venting mechanisms.

The above and other features, aspects, advantages and variations of the present invention, as well as the embodiments described herein, will become apparent to those skilled in the art upon reading the disclosure of this application along with the claims. And are protected within the scope of the claims.

While the specification concludes with reference to claims particularly pointing out and distinctly claiming the invention, it should be understood from the following description of the preferred embodiments, along with the accompanying drawings. , Will be better understood.

All percentages, ratios and proportions herein are by weight of the O ₂ -generating composition unless otherwise stated. All temperatures are degrees Celsius (° C) unless otherwise noted. All references are incorporated by reference in their entireties. The citation of the source does not admit any determination as to its utility as claimed prior art to the present invention. The drawings are not necessarily to scale.

The term “alkyl” as used herein means a straight or branched chain saturated or unsaturated hydrocarbyl moiety. Unless otherwise stated, the alkyl moieties are preferably double bonds, preferably saturated or unsaturated with one or two double bonds. The term "alkyl" includes the alkyl portion of acyl groups.

Referring to the drawings, FIG. 1 is a partial cutaway side view of a preferred embodiment of the container of the present invention. In FIG. 1, a container 10 is a housing 1 for containing an O ₂ -generating composition.
Have two. The housing 12 has an inner portion 14 and an outer portion 16. The inner portion 14 defines an inner surface area 18 that includes a three-dimensional pattern 20. The three-dimensional pattern 20 is shown in FIG. 1 as multiple rings on the inner portion 14 of the housing 12. In particular, in FIG. 1, the three-dimensional pattern is formed by a series of rings found in the inner and outer portions 14 and 16 of the housing 12, providing a 20% increase in internal surface area compared to the container of FIG. When viewed from the outside of the container 10 in FIG. 1, the three-dimensional pattern 2
The 0 appears as a recess 22 on the outer portion 16. In FIG. 1, the three-dimensional pattern 20
Also increases the lateral compressive force and structural rigidity of the container 10.

In the present specification, a three-dimensional pattern is compared with a container having no three-dimensional pattern (
2), an internal surface area of at least about 20%, preferably about 30%.
Any pattern that increases about 200%, and more preferably about 50% to about 150%. The magnitude of the increase in internal surface area can be adjusted by adjusting the dimensions, density, depth and other physical properties of the three-dimensional pattern.

The increase in internal surface area is measured by a computer-aided design (CAD) program. Most CAs used for industrial modeling and product manufacturing / design
The D program can easily and quickly measure the internal surface area of a container once the size and internal feature data has been entered. It is possible to determine the O ₂ passage rate of O ₂ passage rate and / or vessel volume per 1L about the containers from this information. The preferred CAD program is Solid, Massachusetts, USA.
It is "Solid Works" that can be obtained from Works. It is highly preferred that the CAD program itself calculate the O ₂ passage rate for the container at a given orientation and fill volume. For example, in FIG. 2, the internal surface area of the container is calculated by entering information about the container inner diameter, the angle of the conical top, etc. by the CAD program.
The CAD program then simply calculates the surface area based on the combination of cylindrical and conical tops. Similarly for the container of FIG. 1, the internal surface area can be calculated by adding the additional surface area of the raised internal protrusions that form the three-dimensional pattern. From this internal surface area calculation, the O ₂ passage rate for a given orientation and a given packing level can also be calculated.

Generally, the O ₂ passage rate for a given material is determined by the container material itself, the thickness of the container material,
And the effective surface area through which O ₂ can pass. The O ₂ passage rate for a given material is a standard textbook (Tokyo, Japan, published by Technical Information Institute, manufacturing method, design, manufacturing technology and development of high barrier packaging material (September 2, 1998).
8), see page 7) and / or can be calculated according to the following formula: Q = (P * ΔP * A) / T (Equation 1) where Q is It is the O ₂ gas permeation rate expressed in mL / 24 hours at 1 atm. P is a permeation coefficient that depends on the type of gas, the thickness and type of material, etc. The value of P can be found in the literature and in standard texts. P has a unit of mL / (m · atmosphere · 24 hours). ΔP is the partial pressure difference between the inside and outside of the container,
ΔP = (partial pressure of O ₂ gas inside the container) − (partial pressure of O ₂ gas outside the container). △
P has a unit of atmospheric pressure. In equation (1), A is the permeable surface area of the container in m ² , while T is the thickness of the container material in m. By increasing the internal surface area, the three-dimensional pattern increases the amount of permeable surface area, thus increasing the overall O ₂ passage rate of the container.

[0019]   O₂By dividing the gas permeation rate Q by the volume of the container,
O of the container₂You can find the passing speed. In this specification, the container refers to the container.
At least about 0.3 mLO, regardless of the orientation₂/ Atmospheric pressure, 24 hours, Container volume L
, Preferably about 0.4 mLO₂/ Atmosphere, 24 hours, container volume L to about 40 mLO₂/
Atmospheric pressure, 24 hours, container volume L, and more preferably about 0.5 mLO₂/ Atmosphere
24 hours, container volume L to about 7 mLO₂/ Atmosphere, 24 hours, O of container volume L₂Passing speed
Have a degree. O in the container to prevent swelling and gas accumulation in the container ₂ The passing speed is the following O₂O of generating composition₂It ’s important to be larger than the release rate
is there.

The permeation region also depends on the fill level of the O ₂ generating composition within the container volume.
As mentioned above, when O ₂ gas is evolved, it is believed that the gas climbs to the “highest point” of the container and then escapes from this highest point. This is especially true when the liquid O ₂ -generating composition is contained in the container volume, because the O ₂ passage rate appears to be negligible in the area of the container covered by the liquid. . Therefore, the permeation area A is calculated as the internal surface area inside the housing that does not come into contact with the O ₂ -generating composition at the desired fill level. Thus transport and / or less than about 95% O ₂ generating composition container volume during storage, preferably from about 70% to about 95%, and more preferably is important to satisfy about 75% to about 90% is there.

The three-dimensional pattern is typically a ring (for example, 20 in FIG. 1) or a dimple (
It includes a number of individual units such as, for example, 20 of FIG. 3), straight or curved lines (not shown) and combinations thereof. Such individual units can be used alone or in combination to form a three-dimensional pattern including designs, trademarks, drawings, friction surfaces, support structures and combinations thereof. Preferably, the three-dimensional pattern provides a friction surface that enhances user grip of the container and reduces its slippage. The three-dimensional pattern may project inside the housing (see Figure 1)
And / or it may protrude from the outside of the housing (see Fig. 4). Preferably the three-dimensional pattern is substantially evenly distributed inside the housing,
Therefore, the O ₂ passage rate is substantially the same regardless of the orientation of the container. In a highly preferred embodiment, the three-dimensional pattern has an O ₂ permeation rate of less than about 50%, preferably less than about 25%, independent of the orientation of the container when the container contains an O ₂ -generating composition, and More preferably, it is substantially evenly distributed throughout the housing such that it varies from about 0% to about 15%.

The three-dimensional pattern is formed herein as part of a container molding process such as blow molding, embossing, injection molding, injection blow molding, vacuum molding, heat molding and combinations thereof. Preferably the three-dimensional pattern is formed by embossing. Typically the container itself comprises a material selected from the group consisting of polymers, plastics and mixtures thereof; preferably polyethylene, polypropylene, ethyl vinyl acetate, polystyrene, polycarbonate, poly-4-methylpentene-1, microporous Selected from the group consisting of membranes and mixtures thereof; more preferably selected from the group consisting of linear low density polyethylene, oriented polypropylene and combinations thereof. Suitable materials are 3M (St. Paul, Minnesota, USA), Du Pont (Wilmington, Delaware, USA), Toppan Printing (Tokyo, Japan) and Germanic Sciences (Ann Arbor, Michigan, USA).
Available from.

In FIG. 1, the thickness of the housing 12 is substantially the same throughout the container 10. However, the present invention does not require such a uniform housing thickness (see FIG. 5). The thickness of the housing can vary from container to container, but depends on such factors as the structural requirements of the container, the desired O ₂ passage rate, the material of the container itself, and so on. In fact, the container is typically about 3 mm to improve elasticity and drawability.
Less than about 0.02 mm to about 1.2 mm, and more preferably about 0.
． It has a thickness of 1 mm to about 0.8 mm.

In FIG. 1, the container 10 also has a cap 24 that seals the housing 12 and prevents leakage of the O ₂ -generating composition from the container. In other words, the cap 24 and the housing 12 form a substantially impermeable seal for the O ₂ -generating composition even when the container is shipped or stored in a sideways or upside down orientation. The cap 24 also has a number of optional friction surfaces 26 thereon for easily opening and / or closing the cap 24. Such caps form a seal with screw-type lids, snap-type lids, hinge-type lids, slide cap lids and combinations thereof. From the viewpoint of manufacturing, the snap-type lid and the screw-type lid are preferable because they can be manufactured at low cost even with a watertight seal.

An optional feature that can be included if desired for a watertight seal is an internal plug seal, a trigger seal and / or any of the many known contact ring seals. These types of gasketless seals are surprisingly watertight. Alternatively, separately formed or integrally formed gasket type seals may also be used herein. In a highly preferred embodiment, the cap is also made of a material that allows O ₂ gas to pass through as described above. If desired, the cap can further include a three-dimensional pattern to increase the O ₂ passage rate of the cap. Any three-dimensional pattern can be combined with the friction surface or act as the friction surface.

FIG. 2 is a partial cross-sectional side view of a comparative container having no three-dimensional pattern. In FIG. 2, the comparison container 40 also has a housing 42 having an inner portion 44 and an outer portion 46, and an inner surface area 48 within the inner portion 44. The comparison container 40 is also the housing 4
It has a cap 50 for sealing 2. However, the comparison container 40
Lacks the three-dimensional pattern defined above. Thus, the comparative container of FIG. 2 has an inherently smaller internal surface area than the container of FIG. 1 even though all other dimensions are the same.

FIG. 3 is a side view of a preferred embodiment of the container of the present invention. In FIG. 3, container 1
0 has a number of small three-dimensional patterns 20 on the outer portion 16 of the housing 12. By having so many small three-dimensional patterns 20, the container 10 has a significantly increased internal surface area as compared to a comparative container (not shown) lacking such a three-dimensional pattern. For example, many such small three-dimensional patterns, such as dimples, can increase the interior surface area of the container by 50% or more. Such containers are provided in Examples 1 and 2, including non-limiting examples of preferred three-dimensional pattern depth, three-dimensional pattern size and three-dimensional pattern density.

The container 10 of FIG. 3 also has a handle 28 formed by a housing 12 that allows a user to easily hold the container 10 and pour the O ₂ -generating composition from the container 10. ing. The handle 28 also has a large number of three-dimensional patterns 20 thereon.

FIG. 4 is an enlarged perspective view of the container of FIG. 3 as seen along the line 1-1. The inner portion 14 has numerous small three-dimensional patterns 20 that significantly increase the internal surface area 18. The three-dimensional pattern 20 is formed on the outside 1 of the housing 12.
It can be seen as a large number of diples on 6. Such a configuration is very advantageous because the three-dimensional pattern also acts as a friction surface. The three-dimensional pattern of FIG. 4 is preferably embossed.

FIG. 5 is an enlarged perspective view of another embodiment of the container of the present invention. FIG. 5 shows the container of the present invention viewed obliquely by cutting along a line as shown in FIG. In the enlarged perspective view of FIG. 5, the inner portion 14 of the housing 12 has a three-dimensional pattern 20 that is not visible on the outer portion 16 of the housing 12. Containers having such a three-dimensional pattern that is invisible or invisible from the outside of the container are particularly useful because they can reduce the amount of material required to form the container while achieving increased internal surface area. Is. This, in turn, can result in significant savings in material costs. Such a container is preferably formed by thermoforming.

To withstand the container filling process and machining, the container herein is preferably a bottle as illustrated. However, containers that are too soft are difficult to fill in automated processes or easily break. Containers that are too hard, on the other hand, are disliked by users who prefer elastic containers. Accordingly, it is highly preferred that the container has a lateral compression force of at least 20N, preferably about 100N to about 400N, and more preferably about 100N to about 200N. Lateral compressive force is measured as the amount of external force required to deform the container and reduce its width by 10% compared to a container without force. The measured compressive force is preferably measured when the container is empty and when it is unsealed (ie without a cap). Preferably the lateral compression force is measured at a point near the center of the container. Such containers are slightly elastic so that they can withstand the filling process and make the consumer aesthetically pleasing.

[0032]   The container should also have the design, label, decoration and / or instructions desired by the consumer.
Can include additional items such as. However, such additional items are ₂ Pass speed is O₂O of generating composition₂It is preferable not to decrease below the generation rate;
When there is a label on. Therefore, the label itself is also mentioned herein.
Like O₂It can have a passing speed.

The container can be of any size and volume. About 1 container is preferred for consumer products
It has a container volume of 00 mL to about 5 L, preferably about 200 mL to about 3 L, and more preferably about 500 mL to about 2 L.

The present invention is not limited to: vent modules, semipermeable membranes, vent passages,
It can be used in combination with one or more additional venting features such as vents, valves and combinations thereof.

O ₂ -Generating Composition The container of the present invention contains the O ₂ -generating composition therein. The O ₂ -generating composition is typically a cleaning, bleaching and / or disinfecting composition containing a source of active oxygen. The O ₂ -generating composition may be in any form, such as a solid, liquid, gel or combinations thereof. However containers of this invention are particularly useful when O ₂ generating composition is a liquid O ₂ generating composition. In a preferred embodiment, the O ₂ -generating composition is an oxygen bleaching composition, and more preferably the O ₂ -generating composition is a liquid oxygen bleaching composition.

The oxygen bleaching composition herein comprises an active oxygen source such as hydrogen peroxide, an active oxygen producing enzyme, a peracid and / or a persalt, or a mixture thereof; more preferably hydrogen peroxide, an alkali metal Percarbonate, alkali metal perborate, peroxidase enzyme or mixtures thereof. The O ₂ -generating composition typically contains from about 1% to about 30%, preferably from about 1% to about 15%, of the active oxygen source by weight of the composition. When the source of active oxygen is hydrogen peroxide, the O ₂ -generating composition typically comprises about 1% to about 15%, preferably about 1% to about 6% hydrogen peroxide by weight of the composition. Contained in.

The blistering and / or to reduce the fracture, O ₂ generating composition must have a O ₂ generation rate of O ₂ less than the rate of passage of the vessel. Preferably the O ₂ -generating composition is 0
． 6 mL / 24 hours. Less than O ₂ generating composition L, more preferably 0.4 mL / 24
Time-less than O ₂ generating composition L, and more preferably 0.3 mL / 24 hours-
It has an O ₂ generation rate of less than O ₂ generation composition L.

The oxygen bleaching composition also typically contains other optional ingredients such as surfactants, chelating agents, buffer systems and combinations thereof.

Preferred surfactants useful herein include anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and combinations thereof. A combination of anionic, amphoteric and nonionic surfactants is especially preferred. C ₁₁ -C ₁₈ alkyl benzene sulfonates and primary branched Conventional Examples of useful non-limiting surfactants in detergent compositions and random C ₁₀ -C ₂₀ alkyl sulfates of the formula CH ₃ (CH _{2) x} (CHO
SO ₃ -M +) CH ₃ and CH ₃ (CH ₂ ) _y (CHOSO ₃ -M +) CH ₂ CH ₃ [wherein x and (y + 1) are integers of at least about 7, preferably at least about 9, and M Is a water-soluble cation, especially sodium], and a C ₁₀ -C ₁₈ secondary (2,
3) alkyl sulfates, unsaturated sulfates such as oleyl Rusuru sulfates, C ₁₀ -C ₁₈ alkyl alkoxy sulfates (especially EO1~7 ethoxy sulfates), C ₁₀ -C ₁₈ alkyl alkoxy carboxylates (especially EO1~5 ethoxy carboxylate), C ₁₀ -C ₁₈ glycerol ethers, C ₁₀ -C ₁₈ alkyl polyglycosides and their corresponding sulfated polyglycosides, and C ₁₂ -C ₁₈ alpha-sulfonated fatty acid esters. C ₁₂ -C ₁₈ alkyl ethoxylates, including so-called narrow peak alkyl ethoxylates, and C ₆ -C ₁₂ alkylphenol alkoxylates (especially ethoxylates and mixed ethoxy / propoxy), C ₁₂ -C ₁₈ betaines and sulfobetaines, if desired. Conventional nonionic and amphoteric surfactants such as C, C ₁₀ -C ₁₈ amine oxides and the like can also be included in the total composition. C ₁₀ -C ₁₈ N-alkyl polyhydroxy fatty acid amides can also be used. Typical examples include C ₁₂ -C ₁₈ N-methylglucamide. W by Cook et al., Published on April 16, 1992
See O92 / 06154. As other sugar-derived surfactants, C _{10 to} C ₁₈ N- (
N-alkoxy polyhydroxy fatty acid amides such as 3-methoxypropyl) glucamide. N- propyl ~N- hexyl C ₁₂ -C ₁₈ glucamides can be used for low sudsing. C ₁₂ -C ₂₀ soaps usually may also be used.

Highly preferred nonionic surfactants useful herein include those of the formula: R ₁ —O — [(R ₂ O) _n (R ₃ O) _m ]. -R ₄ (formula I) formula, R ₁ is C ₁ -C ₂₅ alkyl group, R ₂ is C ₂ -C ₄ fatty hydrocarbyl chains. Preferably, R ₂ is C ₂ -C ₃ aliphatic hydrocarbyl chain. R ₃ is selected from the group consisting of methyl mono-substituted C ₂ -C ₄ aliphatic hydrocarbyl chains and ethyl mono-substituted C ₂ -C ₄ aliphatic hydrocarbyl chains, preferably R ₃ is methyl mono-substituted C ₂ -C ₃ aliphatic hydrocarbyl chains and is selected from Echirumono substituted C ₂ -C ₃ group consisting of aliphatic hydrocarbyl chain. R ₄ is selected from the group consisting of H, a C ₁ -C ₂₅ alkyl chain, and a C ₁ -C ₂₅ carboxyl chain, where n is an integer from 1 to 10 and m is an integer from 1 to 20. . Highly preferred nonionic surfactants sold by Shell Chemical Company (Houston, TX, USA)
The Dobonol series can be mentioned.

The O ₂ -generating composition is typically at least about 0.01%, more preferably at least about 0.1%, even more preferably at least about 1%, even more preferably about 1%.
% To about 55% surfactant. Preferably, the O ₂ -generating composition contains from about 0.1% to about 30%, more preferably from about 0.5% to about 25%, alkoxylated surfactant by weight of the composition.

Chelating agents are useful herein to reduce the degradation of active oxygen sources that can be catalyzed by trace amounts of metal ions. Particularly useful chelating agents herein include 1-hydroxyethylidene-1,1-diphosphonic acid, butylated hydroxytoluene, ethylenediamine tetraacetate, ethylenediamine disuccinate and mixtures thereof. The O ₂ -generating composition typically contains from about 0.1% to about 15%, and more preferably from 0.1% to about 3%, of the chelating agent by weight of the composition.

The buffer system useful herein maintains the pH of the liquid O ₂ -generating composition at a pH at which the source of active oxygen is relatively stable. Typically, the buffer system maintains the pH of the composition below about 7, preferably below about 6, and more preferably about 3 to about 6.5, and even more preferably about 3 to about 5. Buffer systems useful herein are well known in the art and typically contain acid and alkali salts. As such, the O ₂ -generating composition typically contains from about 0.3% to about 20%, and more preferably from about 0.5% to about 15%, acid by weight of the composition.

In a highly preferred embodiment, the O ₂ -generating composition contains a suds suppressor to reduce or prevent unwanted suds. Preferred suds suppressors include silicone derivatives, high molecular weight hydrocarbons, N-alkylated aminotriazines and alcohols known in the art. For example, Kirk-Osmer Encyclopedia of Chemical Technology, Third Edition, Volume 7, 430-447 (John Wiley & Sons,
Inc. 1979). The O ₂ -generating compositions herein, when present, generally contain from 0.1 to about 5% by weight of the composition of a suds suppressor.

[0045]   Other additives commonly used in detergents and bleaching compositions are also O herein. ₂ Useful for generating compositions. Non-limiting examples of such additional components are dyes
, Alcohols, fragrances, enzymes, preservatives and mixtures thereof.

[0046]

【Example】

Examples of the present invention are described below as examples, but these examples do not limit the present invention in any way.

Example 1 Four identical 1 L volumes of the invention according to FIG. 3 are made of 0.6 mm thick high density polyethylene. The three-dimensional pattern is formed by a large number of embossed dimples according to FIG. 4, each dimple having a diameter of about 1 mm and a diameter of about 0.
It has a depth of 5 mm. The dimple density is about 80 dimples / cm ² , which corresponds to an internal surface area increase of about 20% compared to a container without a three-dimensional pattern. Since this three-dimensional pattern covers substantially the entire container, the O ₂ passage rate is about 2.0 mL / 24 hours of O ₂ independent of container orientation. The cap is also made of high density polyethylene. This container has a lateral compression force of about 150N.

Each container is filled with 900 mL of one of the following oxygen bleaching compositions A to D, this amount filling 90% of the container volume.

[0049]

[Table 1]

Example 2 A 1 L container of the present invention is molded according to Example 1 except that the cap is made of polyethylene and has no handle. Further, each dimple has a diameter of about 0.5 mm and a depth of about 0.25 mm, as measured from inside the housing. The dimple density is about 400 dimples / cm ² , which corresponds to an internal surface area increase of about 78% compared to a container without a three-dimensional pattern. The O ₂ passage rate of the vessel is about 2.8 mL O ₂ / atm · 24 hours regardless of the orientation of the vessel.

The container contains 890 mL of oxygen bleaching composition A, which composition fills 89% of the container volume.

[Brief description of drawings]

[Figure 1]   FIG. 3 is a partially cutaway side view of a preferred embodiment of the container of the present invention.

[Fig. 2]   It is a partially cut side view of the comparison container which does not have a three-dimensional pattern.

[Figure 3]   FIG. 3 is a side view of a preferred embodiment of the container of the present invention.

[Figure 4]   4 is an enlarged perspective view of the container taken along line 4-4 of FIG. 3. FIG.

[Figure 5]   It is an expansion perspective view of other embodiment of the container of the present invention.

─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. ⁷ Identification Code FI Theme Coat (Reference) C11D 3/39 C11D 3/39 3/395 3/395 17/04 17/04 17/08 17/08 D06L 3/02 D06L 3/02 (81) Designated countries EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA , CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD , SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZA, ZW (72) Inventor Masari Yanagida 506 Minamimiyacho, Ashiya City, Hyogo Prefecture -16-6 (72) Inventor, Yamane, Kun 7-23-701, Narihira-cho, Ashiya-shi, Hyogo Prefecture (23) Inventor, Lynn, Michael Min-ja, 3-18-203, Hiratakita-cho, Ashiya-shi, Hyogo F-term (reference) 3E033 AA02 BA15 BA16 BA22 BA24 BA26 BA30 CA15 DA03 DB01 DC03 DD01 DE01 GA02 3E067 AA03 AB99 BA03A BB15A BB16A BB30A BC03A BC07A CA03 EA17 EB 27 GB03 4H003 AB27 AC08 AC23 AD04 BA12 BA21 DA01 EB07 EB08 EB24 ED02 EE04 FA28 FA42 FA44

Claims (10)

[Claims] 1. A container comprising a housing having an inner portion and an outer portion, the container comprising: The inner portion defines an internal surface area, the internal surface area comprising the three-dimensional pattern increasing the internal surface area by at least about 20% as compared to a container without the three-dimensional pattern, B. The internal surface area defines a vessel volume containing O ₂ generating composition, the O ₂ generating composition in container satisfies less than about 95% of the vessel volume, the container, at least about regardless of the orientation of the container 0.3mLO ₂ / atmosphere ・ 2
A container having an O ₂ passage rate of 4 hours and a container volume L. 2. The container of claim 1, wherein the container has a lateral compression force of at least 20N. 3. The container according to claim 1, wherein the three-dimensional pattern is formed by embossing. 4. The housing is formed from a material selected from the group consisting of polyethylene, polypropylene, ethyl vinyl acetate, polystyrene, polycarbonate, poly-4-methylpentene-1, microporous membrane, and combinations thereof. The container according to claim 1, wherein 5. The three-dimensional pattern comprises about 30% to about 20% of the internal surface area.
The container of claim 1, wherein the container has a 0% increase. 6. The container according to claim 1, wherein the O ₂ generating composition is an oxygen bleaching composition. 7. The oxygen bleaching composition, based on the weight of the composition,   A. About 1% to about 15% by weight hydrogen peroxide,   B. About 0.1% to about 30% by weight of alkoxylated surfactant, and   C. About 0.3% to about 20% by weight acid 7. The container of claim 6, wherein the oxygen bleaching composition has a pH of less than about 6. 8. The container of claim 7, wherein the oxygen bleaching composition further comprises a suds suppressor. 9. The alkoxylated surfactant has the following formula: R ₁ —O — [(R ₂ O) _n (R ₃ O) _m ] -R ₄ (Formula I) (wherein R ₁ is , A C ₁ -C ₂₅ alkyl group, R ₂ is a C ₁ -C ₄ aliphatic hydrocarbyl chain, R ₃ is a methyl mono-substituted C ₂ -C ₄ aliphatic hydrocarbyl chain and an ethyl mono-substituted C ₂ -C ₄ aliphatic Selected from the group consisting of hydrocarbyl chains, R ₄ is selected from the group consisting of H, C ₁ -C ₂₅ alkyl chains and C ₁ -C ₂₅ carboxyl chains, n is an integer from 1 to 10 and m is 1 to The container according to claim 7, wherein the container is an integer of 20). 10. The container of claim 7, wherein the oxygen bleaching composition has a pH of less than about 7.