JPH0631436B2 - Cartridge cleaning agent for cleaning machines - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cartridge cleaning agent used in an automatic cleaning machine for cleaning tableware, bottles, containers, trays and the like.

2. Description of the Related Art Automatic dishwashers for washing kitchen utensils such as tableware are widely used mainly for commercial purposes such as dining rooms, and in recent years, household use has also become popular.

In a large-scale automatic dishwashing machine for business, when the concentration of detergent drops as it is used, it detects this with a sensor,
The cleaning agent is automatically replenished. Various types of cleaning agent formulations and replenishment methods have been proposed or implemented.
It is convenient to use a cartridge cleaning agent filled with a solid cleaning agent in a container, spray hot water (water) on the cleaning agent as needed, and melt and supply the required amount at once.

FIG. 6 is an explanatory view showing a momentary dissolution method using such a cartridge cleaning agent. The cartridge cleaning agent in which the cleaning agent 37 is filled in the container 11 is stored in the dissolving chamber 31 of the automatic cleaning machine with the exposed surface of the cleaning agent 37 facing down. Melting chamber 31
A water injection nozzle 33 is disposed below the above, facing upward. At the time of use, water (hot water) is sprayed from the water jet nozzle 33, the cleaning agent 37 is dissolved, and the solution is sent from the supply pipe 35 to the cleaning machine.

As the cartridge cleaning agent, a three-dimensional solid casting hydrated cleaning agent in which an alkali metal hydroxide and a sequestering agent are uniformly mixed, and an enclosure so as to contact all surfaces except one surface of this cleaning agent. It is known to consist of a container (Japanese Patent Publication No. 59-4480).

However, this cartridge cleaning agent has a poor solubility of the solid cleaning agent because caustic alkali and the like are thermally dissolved and solidified, and the cleaning agent near the bottom of the container 11, particularly the bottom edge (37a in FIG. 6), is used up to the end. Even though the cleaning agent is hardly dissolved and the cleaning agent remains in the cartridge, no matter how much the spraying is performed, the cleaning agent concentration level of the cleaning machine does not reach an appropriate value.

Japanese Patent Laid-Open No. 63-177829 discloses a cartridge cleaner in which a container having an opening is filled with a powdery granular cleaning agent and the opening is sealed with a water-soluble solid sealant composed of a hydratable salt. It has been reported. When water is sprayed onto this cartridge cleaning agent, the sealing agent is first dissolved and then the powdery granular cleaning agent which is a cleaning component is dissolved and supplied. Although this is a powdery granular cleaning agent, the problem of solubility is improved, but the sealing agent that dissolves first does not contribute effectively to cleaning, so there is a concern that the cleaning power may deteriorate at the initial stage of cartridge cleaning agent replacement.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention provides a cartridge cleaning agent that prevents the cleaning agent from being rapidly dissolved even when the cleaning agent remaining amount in the cartridge is low and that the cleaning agent remains at the bottom. It is provided.

Composition of the Invention The cartridge cleaning agent for a cleaning machine of the present invention is stored with a partial depth left at the bottom of a container having an opening, and is filled with a granular cleaning agent and cast on the granular cleaning agent, It is characterized in that it has a filled solid hydrated detergent, and the layer thickness of the solid hydrated detergent is 70% or more of the layer thickness of all the detergents.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view showing an embodiment of a cartridge cleaning agent of the present invention, in which a bottom surface 11a of a container 11 is compactly filled with a granular cleaning agent 15 and a solid hydrating cleaning agent 13 is cast thereon. It is filled. The ratio of the layer thickness of the solid hydrated detergent 13 to the powdery granular detergent 15 is such that the layer thickness of the solid hydrated detergent is 70% or more of the layer thickness of all the detergents. 13a indicates the surface of the solid hydration cleaner 13.

FIG. 5 is an explanatory view showing the usage state of the cartridge cleaning agent, which is arranged upside down in the dissolution chamber 31.
When hot water is jetted from the water jet nozzle 33, the solid hydrated detergent 13 is initially dissolved, and this is supplied from the supply pipe 35 to the washing machine. Therefore, there is no reduction in the cleaning power of the cleaning liquid at the time of initial hot water jetting, and sufficient cleaning agent can be supplied to the cleaning machine from the initial stage of cartridge cleaning agent replacement. When the solid hydrated detergent 13 is dissolved and reaches the layer of the granular detergent 15,
The granular cleaning agent 15 dissolves. Since the powdery or granular cleaning agent 15 filled in the bottom portion 11a of the container 11 has better solubility than the solid hydration cleaning agent 13, a cleaning agent (powdered or granular cleaning agent) near the bottom portion is used.
It can be used up by dissolving it to the end without leaving 15). If the cleaning agent does not dissolve until the end and the cleaning agent remains at the bottom of the container, the cleaning agent is not only wasted, but since the cleaning agent generally contains a strong alkali such as caustic soda, handling of used containers Also, the disposal is troublesome. In addition, even though the cleaning agent remains in the cartridge cleaning agent container, the cleaning agent concentration of the cleaning solution rises to an appropriate level,
This will lead to a situation where it will not recover, hindering maintenance of the washing machine and deciding when to replace the cartridge cleaner.

FIG. 2 is a vertical cross-sectional view showing another embodiment of the cartridge cleaning agent, in which a powdery granular cleaning agent 15 and a solid hydrating cleaning agent 13 are alternately arranged in a plurality of layers in the container 11 from the bottom surface 11a side. It is stacked. The granular cleaning agent 15 is provided on the portion that contacts the bottom surface 11a of the container 11.
Need to be filled, which provides the above-mentioned effects.

FIG. 3 is a vertical sectional view showing still another embodiment of the cartridge cleaning agent, and FIG. 4 is a top view thereof. Container 11
A powdery granular cleaning agent 15 is compacted and packed on the bottom surface 11a of the above, and a solid hydrating cleaning agent 13 having a cavity portion 21 is cast and filled thereon. The cavity 21 extends from the surface 13a of the solid hydrating detergent 13 to the surface of the powdery granular detergent 15.

In this embodiment, when the solid hydrated detergent 13 is dissolved, the inner surface of the cavity 21 is dissolved by jetting warm water in addition to the surface 13a, so that the solubility is good.

The powdery or granular cleaning agent can contain an alkaline agent, a chelating agent, a bactericidal agent, a surfactant and the like. As the alkali agent, caustic soda, caustic potash, sodium metasilicate, sodium carbonate, etc. are used. Examples of the chelating agent include sodium tripolyphosphate, sodium pyrophosphate, polyacrylic acid salt, polymaleic acid salt, ethylenediaminetetraacetic acid salt, gluconacetic acid salt, nitrilotriacetic acid salt and the like. Examples of the bactericide include sodium dichloroisocyanurate and the like. After mixing these components sufficiently uniformly, they are compacted and filled in a container.

The solid hydrated detergent can also use the same components as those of the powdery granular detergent. All of the above alkaline agents have hydratability, and water is added to each component including the alkaline agent and the chelating agent to form a slurry, which is cast in a container and solidified by leaving it to be a solid. A hydrated detergent is obtained.

Effect of the Invention According to the present invention, by filling the bottom surface side of the container with the powdery granular cleaning agent, and by filling the solid hydrating cleaning agent on it, the cleaning component can be supplied from the initial stage of the cartridge cleaning agent, Moreover, the cleaning agent in the container can be completely used up, and the cleaning agent can be prevented from remaining on the bottom surface of the container.

Experimental Example 1 In a polyethylene container having a diameter of 10 cm and a height of 20 cm, 50 parts by weight of granular caustic soda and 50 parts of granular tripolyphosphate soda were used.
Parts by weight of the homogeneous mixture were compacted until a layer of about 5 cm thickness was formed.

On the other hand, 53.57 parts by weight of a 50% aqueous solution of caustic soda is heated to 55 to 60 ° C., and 8.77 parts by weight of anhydrous caustic soda is dissolved therein,
Then, 35.06 parts by weight of sodium tripolyphosphate was added and mixed to form a slurry.

This slurry was cast and solidified on the compacted and packed powdery granular detergent layer to form a layer having a thickness of about 13 cm to prepare the cartridge detergent of the present invention shown in FIG.

On the other hand, in the same container as described above, without compacting and packing the granular detergent, the same slurry as above is directly cast and solidified to form a layer having a thickness of about 18 cm, and the detergent is removed on one surface. A comparative cartridge cleaning agent described in JP-B-59-4480, which was surrounded by a mold container so as to come into contact with all surfaces, was prepared.

These two cartridge cleaners are commercially available automatic cleaning machines for commercial use (Ishikawajima Harima Heavy Industries Ltd., JWD-
6 type), the tableware was actually continuously washed. here,
Hot water of 60 ° C was jetted from the water jet nozzle.

When the cartridge cleaning agent of the present invention was used, the cleaning agent in the container was completely dissolved and eluted.

On the other hand, with the comparative cartridge cleaning agent, the cleaning agent at the bottom edge of the container remained without being dissolved even when the hot water injection was repeated.

[Brief description of drawings]

FIG. 1 and FIG. 2 are vertical sectional views showing examples of the cartridge cleaning agent of the present invention. FIG. 3 is a vertical sectional view showing another embodiment of the cartridge cleaning agent of the present invention, and FIG. 4 is a top view thereof. FIG. 5 is an explanatory diagram showing a usage state of the cartridge cleaning agent of FIG. FIG. 6 is an explanatory view showing a conventional cartridge cleaning agent and its usage state. 11 …… Container, 11a …… Bottom 13 …… Solid hydration cleaner, 13a …… Surface 15 …… Powdered and granular cleaner, 17 …… Opening port 21 …… Cavity, 31 …… Dissolution chamber 33 …… Water Injection nozzle, 35 …… Supply pipe 37 …… Cleaning agent

Claims (1)

[Claims] 1. A powdery and granular cleaning agent which is stored and filled in the bottom of a container having an opening, leaving a partial depth, and a solid hydrated cleaning agent which is cast and filled on the powdery and granular cleaning agent. And a solid hydrated detergent having a layer thickness of 70% or more of the total detergent layer thickness.