JP4772969B2 - Solid detergent container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solid detergent container in which no detergent remains on the bottom and side surfaces of the container after use.
[0002]
[Prior art]
Conventionally, liquid or powder detergents have been used in dishwashers, bottle washers, and container washers. However, in the case of a powder cleaning agent, for example, a method in which an operator takes out the cleaning agent from a container in which the cleaning agent is stored and puts it into the cleaning agent supply device as necessary is required. In addition, there is a drawback that the composition of the detergent solution is not always constant due to the difference in the dissolution rate between the mixed powders. In the case of a liquid detergent, the composition does not change with time, but the active ingredient is less than that of the powder detergent, so that it is not suitable for the current situation where there is a strong demand for high performance.
[0003]
As one method to meet the present situation of high performance, a method of increasing the cleaning efficiency by increasing the cleaning power of the cleaning composition is taken. For example, as described in U.S. Pat. Nos. 3,166,513, 3,535,285, 3,579,455, 3,700,599 and 3,899,436, alkali metal hydroxide is generally used to remove strong stains caused by food and drink. In order to assist the cleaning power, phosphates, carbonates and the like are used as main components, and further, chlorine-containing compounds such as chlorinated isocyanurs and antifoaming agents are added.
[0004]
Such a detergent composition is cast and filled into a plastic detergent container as a solid hydrate detergent as described in, for example, Japanese Patent Publication No. 59-4480 and Japanese Patent Laid-Open No. 2-84500. A cartridge-type solid cleaning agent has been proposed. The solid cleaning agent is used by a method in which the entire container is filled in a supply device, hot water is injected from the lower portion of the supply device to dissolve the cleaning agent, and the cleaning liquid is supplied to the cleaning tank. According to this method, the operator does not directly touch the highly alkaline cleaning agent, the danger is eliminated, and it is possible to meet the demand for high performance to some extent. However, solid detergents have poor solubility, and depending on the shape of the container, in the initial stage of supplying a new detergent, the necessary amount of detergent cannot be completely dissolved in a short time, resulting in insufficient concentration, Due to the variation in dissolution, there is a problem that an expected cleaning power cannot be obtained, or an undissolved cleaning agent remains on an inner wall such as a bottom part or a side part of the container.
[0005]
[Problems to be solved by the invention]
The object of the present invention relates to a solid detergent container in which there is no bias in the dissolution of the detergent components, and no detergent remains on the bottom and side surfaces of the container after use.
[0006]
[Means for Solving the Problems]
As a result of intensive research, the inventors of the present invention have provided a rib portion on the side surface of the solid cleaning agent container, so that the supply water injected into the container is accumulated and a water flow is generated, which is biased to the dissolution of the cleaning agent. Thus, the present inventors have found that no detergent remains on the bottom and side surfaces of the container after use, and have completed the present invention.
[0007]
That is, the present invention is a solid detergent container made of synthetic resin, which has a pouring mouth portion 1 in the container upper portion 7 and a plurality of rib portions 3 extending obliquely on the container lower side surface 5. The solid detergent container in which a water flow is generated in the water supplied into the container by the rib portion 3.
The container of the present invention is constituted by the container upper part 7, the container lower side surface 5 and the container bottom part 6, and there is no bias in the dissolution of the cleaning agent, and the cleaning agent does not remain on the container bottom part 6 and the container lower side surface 5 after use.
[0008]
The present invention also includes a container upper portion 7 that extends conically from the pouring port portion 1 and a cylindrical container lower side surface 5 therebelow, and a plurality of rib portions 3 that extend obliquely on the container lower side surface 5. The solid cleaning agent container is provided.
Further, the present invention provides the solid detergent container having 30 to 40 rib portions having a width of 5 to 15 mm and a length of 20 to 30 mm per circumference 535 mm of the container lower side surface 5 at equal intervals. It is.
[0009]
Moreover, this invention provides the said solid cleaning agent container with which the rib part 3 is formed at the angle of 30-70 degree | times with respect to the container bottom part 6. FIG.
In addition, the present invention provides the solid detergent container in which the rib portion 3 is recessed or protruded by 1 to 5 mm with respect to the inner wall surface of the container lower side surface 5.
Moreover, this invention provides the said solid cleaning agent container used for an automatic tableware washing machine.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The container for a solid cleaning agent of the present invention is a synthetic resin container, and has a predetermined shape so as to fill the contents with a dispensing mouth portion 1 provided in the container upper portion 7. A rib portion 3 extending in an oblique direction is provided. The rib portion 3 accumulates supply water that is injected into the container when the solid cleaning agent is used and generates a water flow, so that there is no bias in the dissolution of the cleaning agent component, and the container bottom portion 6 and the container lower side surface 5 after use. No cleaning agent remains.
[0011]
In the solid detergent container of the present invention, the rib part 3 may be provided on the container lower side surface 5 so as to accumulate the supplied water and generate a water flow. The container upper part 7 spreading in a conical shape and the cylindrical container lower side face 5 below the container upper part 7 may be provided, and the container lower side face 5 may have a plurality of rib portions 3 extending obliquely.
[0012]
The rib portion 3 has a width of 5 to 15 mm, preferably 8 to 12 mm, and a length of 20 to 30 mm, preferably 22 to 27 mm per circumference 535 mm of the container lower side surface 5, preferably 30 to 40 rib portions, preferably It is preferable to have them at regular intervals in the ratio of 32-38.
Moreover, although the rib part 3 is extended in the diagonal direction, the inclination is 30-70 degree | times with respect to the surface of the container bottom part 6, Preferably it is 40-60 degree | times.
[0013]
Further, the rib portion 3 may be recessed or protruding in a mountain shape with respect to the inner wall surface of the container lower side surface 5, but is preferably 1 to 5 mm, more preferably 2 to 4 mm. It should be protruding in a shape. Although the shape of a rib is not limited, A rectangular parallelepiped shape is preferable.
[0014]
The container upper part 7 is preferably provided with a solid cleaning agent pouring port 1 so that the cap can be detachably screwed. Further, the container has a predetermined shape so as to be filled with the contents. The container of the present invention is preferably a rotationally symmetric body around an axis connecting the circular pouring port 1 and the center of the container bottom 6.
Moreover, it is preferable that the bottom 6 of the container of the present invention is provided with a rod-like handle 4, which can be used when the handle 4 is installed in a cleaning agent supply unit such as a dishwasher.
[0015]
The solid detergent container of the present invention is suitable for use in an automatic dishwasher, the water supplied by the automatic dishwasher accumulates in the container and creates a water flow, and the detergent components dissolve evenly, The cleaning agent does not remain on the wall surfaces such as the container bottom 6 and the container lower side surface 5 after use.
[0016]
The rib part 3 may be provided on the container lower side surface 5, but preferably the lower end of the rib part 3 is in contact with the container bottom part 6 and extends from the container bottom part 6 or extends from the position of 0 to 3 mm from the container bottom part 6. It is good to have.
Further, the container of the present invention may be further provided with a rib part 3 in order to increase the rigidity of the container, bend the rib part 3 to facilitate folding and crushing, and enable the container to be reduced in volume. Good. Of course, the rib portion 3 may be provided in addition to the container lower side surface 5 referred to in the present invention for the purpose of preventing the detergent from remaining.
[0017]
The solid detergent container of the present invention may be made of a flexible synthetic resin, but from the viewpoint of the rigidity, durability, heat resistance, volume reduction, etc. of the container, high density polyethylene, low density polyethylene, polypropylene, or It is preferable to consist of one or more of them.
The composition ratio referred to in the present invention means a mixing ratio of high-density polyethylene, low-density polyethylene, and polypropylene.
[0018]
Moreover, the thickness of the container of the solid detergent container of the present invention is preferably 0.5 to 1.2 mm, and preferably 0.7 to 1.0 mm from the viewpoint of the rigidity, durability, heat resistance, and volume reduction of the container. More preferred.
[0019]
The container of the present invention can be manufactured by integrally molding by blow molding using a molding die having a concave portion or a convex portion that becomes a rib portion, for example.
[0020]
The container of the present invention can be used as a container for a solid detergent, such as a melt-type solid detergent or a solid detergent obtained by adding an additive or the like to a detergent powder. In the case of a melt-type solid detergent, the appearance of the melt-type solid detergent containing water, an alkali agent, a sequestering agent (chelating agent), etc., even at high temperatures of 50 to 80 ° C., rupture of containers・ Can be injected without breakage or expansion.
[0021]
Examples of the alkali agent include sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, sodium silicate and the like.
[0022]
Examples of sequestering agents include condensed phosphates such as tripolyphosphoric acid, ethylenediaminetetraacetic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), and polyacrylic acid. Polymeric chelating agents such as soda, styrene-maleic anhydride copolymer, methyl vinyl ether-maleic anhydride copolymer, acrylic acid-maleic anhydride copolymer and the like can be mentioned.
[0023]
In addition, the melt-type solid detergent is blended with a recontamination inhibitor, chlorine supplement, bleach, inorganic salts, various surfactants, etc., and the container of the present invention is blended with these other components. Can be used without problems even when
[0024]
Examples of the recontamination preventing agent include polyethylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, carboxymethyl cellulose and the like.
Examples of the chlorine scavenger include ammonium sulfate, urea, guanidine hydrochloride, guanidine carbonate, guanidine sulfamate, thiourea dioxide, monoethanolamine, diethanolamine, triethanolamine and the like.
Bleaching agents include chloramine B (N-chlorobenzenesulfonamide sodium), dichloramine B (N, N′-dichlorobenzenesulfonamide), chloramine T (N-chloro-P-toluenesulfonamide sodium), dichloramine T (N, N'-dichloro-P-toluenesulfonamide), chlorinated isocyanurates, hypochlorites, trisodium chlorophosphate and the like.
Examples of inorganic salts include sodium sulfate and potassium sulfate.
The surfactant is not particularly limited, but a low foaming agent is preferable. For example, polyoxyethylene polyoxypropylene block copolymer, polyoxyethylene polyoxypropylene condensate of ethylenediamine, phosphate ester, polyoxyethylene polyoxypropylene Examples thereof include alkyl ethers.
[0025]
【Example】
Example 1
<Preparation of solid detergent>
15 parts by weight (15 kg) of water 2 parts by weight (2 kg) of a surfactant (EO-PO condensate) and 5 parts by weight (5 kg) of a chelating agent (acrylic acid-maleic anhydride copolymer, molecular weight 70,000) After the dispersion, 45 parts by weight (45 Kg) of anhydrous sodium hydroxide was added and maintained at 55 to 65 ° C. with stirring, and 8 parts by weight (8 Kg) of sodium sulfate and 25 parts by weight (25 Kg) of sodium tripolyphosphate were sequentially added. In addition, a solid detergent was prepared.
[0026]
<Solid detergent container>
A container having the following dimensions shown in FIGS. 1 to 8 was produced by blow molding using a resin having the following composition (product of the present invention).
Container composition: 70% by weight of low density polyethylene, 30% by weight of high density polyethylene
Container dimensions: 535 mm circumference of the container lower side surface (5), 165 mm diameter of the container bottom (6), 75 mm diameter of the dispensing port (1), 175 mm height
Rib part (3): Rib width 10 mm, rib length 25 mm, rib angle 55 degrees (angle with bottom), recess 2 mm with respect to inner wall surface of rib side face part (5), number of ribs 37 : 2400ml
[0027]
<Cleaning test>
The molten solid detergent obtained above was filled with 4 kg in the above container, and a washing test (30 ° C., 2.0 l / min.) Was performed with an automatic dishwasher (DW-D61 manufactured by Sanyo Corporation). It was visually confirmed whether or not the cleaning agent remained on the container bottom 6 and the container lower side surface 5. As a result, there was no residual cleaning agent in the product of the present invention.
[0028]
Comparative Example 1
A container having the same shape as in Example 1 except that no ribs were provided was produced in the same manner as in Example 1 (comparative product). Next, using the comparative product, the same cleaning test as in Example 1 was performed. As a result, the cleaning product remained on the container bottom 6 and the container lower side surface 5 in the comparative product.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the container for solid cleaning agents which there is no bias in melt | dissolution of a cleaning component and a cleaning agent does not remain in a container bottom part and a side surface after use can be provided.
[Brief description of the drawings]
FIG. 1 is a front view of an example of a container of the present invention.
FIG. 2 is a rear view of an example of the container of the present invention.
FIG. 3 is a side view of an example of the container of the present invention.
FIG. 4 is a perspective view of an example of the container of the present invention.
FIG. 5 is a top view of an example of the container of the present invention.
FIG. 6 is a top perspective view of an example of the container of the present invention.
FIG. 7 is a bottom view of an example of the container of the present invention.
FIG. 8 is a lower perspective view of an example of the container of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outlet part 2 Cover part 3 Rib part 4 Handle 5 Container lower side surface 6 Container bottom part 7 Container upper part

Claims (6)

It is a solid detergent container made of synthetic resin, has a pouring port at the top of the container, and has a plurality of ribs extending obliquely on the side of the bottom of the container. A solid detergent container that causes water flow in the feed water. 2. The solid detergent container according to claim 1, which has a container upper part extending conically from the dispensing port, a cylindrical container lower side surface below the container, and a plurality of ribs extending obliquely on the container lower side surface. . 3. The solid detergent container according to claim 1, wherein 30 to 40 rib portions having a width of 5 to 15 mm and a length of 20 to 30 mm are arranged at equal intervals per circumference of 535 mm of the lower side surface of the container. The solid detergent container according to any one of claims 1 to 3, wherein the rib portion is formed at an angle of 30 to 70 degrees with respect to the container bottom surface. The solid detergent container according to any one of claims 1 to 4, wherein the rib part is recessed or protruded by 1 to 5 mm with respect to the inner wall surface of the container lower side surface. The solid detergent container according to any one of claims 1 to 5, which is used in an automatic dishwasher.

Images