JPH0284500A - Cartridge detergent for washer - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cartridge cleaning agent used in an automatic washing machine for cleaning tableware, bottles, containers, trays, etc.

2. Description of the Related Art Automatic dishwashers for cleaning kitchen utensils such as slow-speed tableware are widely used mainly for commercial purposes such as cafeterias, and in recent years, home use has also begun to become popular.

In large commercial automatic dishwashers, when the detergent concentration decreases with use, a sensor detects this and
Cleaning agent is automatically replenished.

Various types of detergent formulations and replenishment formats have been proposed or implemented, but cartridge detergents are used, in which a container is filled with solid detergent. It is convenient to spray and dissolve and supply the required amount as needed.

FIG. 12 is an explanatory diagram showing a sequential dissolution method using such a cartridge cleaning agent. Cleaning agent 37 in container 11
The cartridge cleaning agent filled in the cleaning agent 37 is stored in the dissolving chamber 31 of the automatic cleaning machine with the exposed surface of the cleaning agent 37 facing down. A water jet nozzle 33 is disposed below the melting chamber 31 and faces upward.

In use, water (hot water) is sprayed from the water jet nozzle 33 to dissolve the cleaning agent 37 and sent to the cleaning machine from the supply pipe 35.

The cartridge cleaning agent includes a three-dimensional solid cast hydration cleaning agent in which alkali metal hydroxide and a sequestering agent are uniformly blended, and the cleaning agent is surrounded so as to come into contact with all surfaces except one surface. A container consisting of a container is known (Japanese Patent Publication No. 59-4480).

However, since this cartridge cleaning agent has caustic alkali or the like melted and solidified by heat, the solubility of the solid cleaning agent is poor, and it is necessary to spray hot water upon use. If the spray water is at low temperature or low pressure, it will take time to dissolve, making it impossible to dissolve and supply the necessary amount of cleaning agent to the washing machine in a short time. Also.

Near the bottom of the container 11', especially at the bottom edge (37a in Figure 12)
) is hardly dissolved until the end, and even though there is some detergent left in the cartridge, no matter how much you spray it, the detergent concentration level in the washer will not reach the appropriate value. . Japanese Patent Publication No. 63-177829
This publication reports a cartridge cleaning agent in which a powdery cleaning agent is filled in a container having an open opening, and the opening opening is sealed with a water-soluble solid sealant made of a hydratable salt.

When water is injected into the cartridge cleaning agent, the sealing agent is first dissolved, and then the cleaning component, granular cleaning agent, is dissolved and supplied. Although the problem of solubility has been improved since it is a powder-like cleaning agent, there is a concern that the cleaning power may decrease in the initial stage when the cartridge cleaning agent is replaced because the sealant that dissolves first does not contribute sufficiently effectively to cleaning.

The present invention has good solubility and can supply the necessary amount of cleaning agent to the washing machine in a short time, and can quickly follow changes in the concentration of the cleaning agent in the washing liquid during continuous use of the washing machine. The present invention provides a cartridge cleaning agent.

The present invention also provides a cartridge cleaning agent that dissolves the cleaning agent quickly even when the amount of cleaning agent remaining in the cartridge is low, and prevents the cleaning agent from remaining at the bottom until the end. .

In the first cartridge cleaning agent of the present invention, a solid hydrated cleaning agent is poured and filled into a container having an open opening, and
The solid hydrated cleaning agent is characterized in that a cavity is formed in the solid hydrated cleaning agent, passing through the solid hydration cleaning agent from the opening side to the bottom of the container.

Moreover, the second cartridge cleaning agent of the present invention is as follows.

A powdery cleaning agent is stored and filled in a container having an open opening, leaving at least a part of the depth, and a solid hydrated cleaning agent is poured and filled thereon.

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

FIG. 1 is a top view showing an embodiment of the cartridge cleaning agent of the present invention, and FIG. 2 is a longitudinal sectional view thereof. Container 11
A columnar cavity 21 penetrating from the open mouth surface 13a to the bottom surface 11a of the container 11 is provided inside, and the solid hydrated cleaning agent 13 is cast.
Filled. 17 indicates the opening of the container.

FIG. 5 is an explanatory diagram corresponding to FIG. 12 showing the usage state of the cartridge cleaning agent. When hot water is sprayed from the water spray nozzle 33, the hot water dissolves not only the open mouth surface 1.3a of the solid hydrated cleaning agent 13 but also the solid hydrated cleaning agent 13 exposed in the cavity 21.

As a result, it can be sufficiently dissolved even in a state where the pressure of normal hot water is lowered. For this reason, the amount of dissolved detergent increases, and even if the temperature of the jetted water is somewhat low or the jetting pressure is slightly reduced, the necessary amount of solid hydrated cleaning agent 13 can be obtained in a short time.
can be dissolved and sent to the washing machine through the supply pipe 35, which improves the ability to follow the concentration detection signal of the washing machine, making it possible to continuously and automatically wash tableware always at a predetermined detergent concentration. can.

FIG. 3 is a top view showing another embodiment of the cartridge cleaning agent of the present invention, and FIG. 4 is a longitudinal sectional view thereof. Same as the example shown.

A cartridge cleaning agent having a cavity 21 can be produced, for example, by inserting a cutting mold having the shape of the cavity 21 into the container 11 and reaching the bottom of the container, and pouring the wettable cleaning composition slurry into the mold. It can be manufactured by solidifying and removing the mold.

FIG. 6 is a sectional view showing an embodiment of the cartridge cleaning agent of the present invention, in which powdery cleaning agent 1 is placed on the bottom surface 11a of container II.
5 is compacted and filled, and a solid hydrated cleaning agent 13 is cast and filled thereon. Solid hydrating detergent 13 and powder granular detergent 1
The layer thickness ratio of 5 can be selected as appropriate, and the solid hydrating cleaning agent 13
It is desirable that the ratio of the solid hydrated cleaning agent 13 is high, and it is more preferred that the ratio of the solid hydrated cleaning agent 13 is 70% or more.

FIG. 8 is an explanatory view showing the usage state of this cartridge cleaning agent, in which it is placed upside down in the dissolution chamber 31. When hot water is injected from the water injection nozzle 33, the solid hydrated cleaning agent 13 is initially dissolved, and this is supplied from the supply pipe 35 to the cleaning machine. Therefore, there is no reduction in the cleaning power of the cleaning liquid during the initial injection of hot water, and a sufficient amount of cleaning agent can be supplied to the washer from the beginning of replacing the cartridge cleaning agent.

When the solid hydrated cleaning agent 13 is dissolved and reaches the layer of the granular cleaning agent 15, the granular cleaning agent 15 is dissolved. The powder/granular cleaning agent 15 filled in the bottom 11a of the container 11 has better solubility than the solid hydrated cleaning agent 13, so no cleaning agent (powder/granular cleaning agent 15) remains near the bottom. It can be used up by dissolving it until the end. If the cleaning agent does not dissolve until the end and remains at the bottom of the container, not only will the cleaning agent be wasted, but cleaning agents generally contain strong alkalis such as caustic soda, so handle used containers. Or, it is troublesome to dispose of it. In addition, even though there is cleaning agent remaining in the cartridge cleaning agent container, the cleaning agent concentration in the cleaning solution rises to an appropriate level and does not recover.
This poses a problem in maintaining the cleaning machine and determining when to replace the cartridge cleaning agent.

FIG. 7 is a longitudinal sectional view showing another embodiment of the cartridge cleaning agent, in which powdery cleaning agent 15 and solid hydrated cleaning agent 13 are alternately layered in multiple layers from the bottom surface 11a side in the container 11. Laminated. It is necessary to fill the part of the container 11 in contact with the bottom surface 11a with the particulate cleaning agent 15, thereby obtaining the above-mentioned effect.

FIG. 9 is a longitudinal sectional view showing still another embodiment of the cartridge cleaning agent. A powdery cleaning agent 15 is compacted and packed onto the bottom surface 11a of the container 11, and a solid hydrated cleaning agent 13 having a cavity 21 is cast and filled thereon. The shape of the solid hydrated cleaning agent 13 is basically the same as that shown in FIGS. 1 and 2, and the cavity 2I is
According to the type of cartridge cleaning agent that reaches from the surface of No. 3 to the surface of the powdery cleaning agent 15, it is possible to obtain both the above-mentioned effects of improving the solubility and preventing the cleaning agent from remaining.

The powdery cleaning agent can contain an alkali agent, a chelating agent, a disinfectant, a surfactant, and the like. As the alkaline agent, caustic soda, caustic potash, sodium metasilicate, soda carbonate, etc. are used. Examples of the chelating agent include sodium tripolyphosphate, sodium pyrophosphate, polyacrylate, polymaleate, ethylenediaminetetraacetate, gluconacetate, and nitrilotriacetate. Examples of the disinfectant include sodium dichloroisocyanurate. After these components are thoroughly and uniformly mixed, they are compacted and packed into a container.

The solid hydrated cleaning agent can also use the same components as the powdery cleaning agent. All of the above alkaline agents are hydratable, and water is added to each component including the alkaline agent and chelating agent to form a slurry, which is poured into a container and left to stand to solidify and solidify. A hydrated cleaning agent is obtained.

FIG. 10 is an explanatory diagram showing a method of completely dissolving the cleaning agent without leaving any residue by changing the shape of the container. Container 11
By forming the center of the bottom surface 11a below the base 11c of the side wall 11b (on the opposite side of the opening 17), the cleaning agent remains undissolved on the bottom surface of the container, especially on the edge of the bottom surface. This can be prevented. FIG. 10 shows a case where a cavity 21 is formed in the container 11 and the solid hydrated cleaning agent 13 is cast and filled, but the content of this technology is based on the shape of the container itself. The filling format of the cleaning agent is not limited. For example, the filling formats shown in Figures 4, 6, 7, and 9 of the embodiments of this application are also possible, and the filling formats described in Japanese Patent Publication No. 59-4480 are also applicable. can.

FIG. 11 is an explanatory diagram showing the relationship between the container shape shown in FIG. 10 and the jetted water. It is believed that the hot water 39 jetted from the water jet nozzle 33 flows down the dome-shaped bottom surface 11a' and efficiently dissolves the cleaning agent 37 on the edge of the bottom surface 11a.

Month 1! According to the invention of Claim 1, by providing the solid hydrating cleaning agent with a cavity that penetrates to the bottom of the container, the solubility of the cleaning agent is improved, and relatively low temperature and low pressure jet water can be used. Even if there is a problem, the necessary amount of cleaning agent can be supplied to the cleaning machine in a short time.

According to the invention of claim 2, by filling the bottom side of the container with the powdery cleaning agent and filling the solid hydrated cleaning agent thereon, the cleaning component can be supplied from the initial stage of the cartridge cleaning agent. Moreover, it is possible to completely use up the cleaning agent in the container, and it is possible to prevent the cleaning agent from remaining on the bottom of the container.

Experimental Example 1 A polyethylene cylindrical container with a diameter of 10 am and a height of 20 am was prepared, and a cutting die was used to cut the container with a diameter of 1.
Two cylindrical bodies of 5mm are each 1mm from the center in the diametrical direction. O
A++li was placed. 53.57 parts by weight of a 50% aqueous sodium hydroxide solution was heated to 55 to 60°C, 8.77 parts by weight of anhydrous caustic soda was dissolved therein, and then 35.06 parts by weight of sodium tripolyphosphate was added and mixed to form a slurry. . This slurry was poured into the container described above, allowed to solidify, and the mold was pulled out to prepare cartridge cleaning agent A of the present invention shown in FIGS. 1 and 2.

On the other hand, a comparison was made in Japanese Patent Publication No. 59-4480, in which the same operation as above was repeated except that no cutting die was used, and the cleaning agent was surrounded by a die container so that it came into contact with all surfaces except one surface. A cartridge cleaning agent was prepared.

These two cartridge cleaning agents were used in a commercial automatic washing machine (manufactured by Ishikawajima Harima Heavy Industries Co., Ltd., Model JWD-6) to continuously wash tableware. Here, 60° C. hot water was injected from the water injection nozzle.

When cartridge cleaning agent A of the present invention is used, the necessary amount of cleaning agent is quickly supplied to the cleaning machine by hot water jetting based on the signal from the cleaning agent concentration sensor of the cleaning liquid, and it exhibits good followability and is released from the sensor. The injection signal also stopped for a short time.

On the other hand, when the comparative cartridge cleaning agent was used, the solubility was poor and sufficient cleaning agent was not supplied in a short period of time, resulting in poor followability and an ejection signal being issued for a long period of time. This was particularly noticeable at the beginning of cartridge cleaning agent replacement.

Experimental Example 2 A homogeneous mixture of 50 parts by weight of granulated caustic soda and 50 parts by weight of granular sodium tripolyphosphate was compacted and packed into a container similar to that in Experimental Example 1 until a layer having a thickness of about 51 mm was formed. The same slurry as in Experimental Example 1 was poured onto this and solidified to form a layer with a thickness of about 13 Ql, thereby preparing cartridge cleaning agent B of the present invention shown in FIG. 6.

When a mounting test similar to Experimental Example 1 was conducted using the cartridge cleaning agent B of the present invention and the comparative cartridge cleaning agent of Experimental Example 1, it was found that in the cartridge cleaning agent B of the present invention, the cleaning agent in the container was completely removed. Everything was dissolved and eluted.

In contrast, in the comparative cartridge cleaning agent, the cleaning agent remained at the bottom edge of the container without being dissolved even after repeated injections of hot water.

[Brief explanation of drawings]

FIG. 1 is a top view showing an embodiment of the cartridge cleaning agent of the present invention, and FIG. 2 is a longitudinal sectional view thereof. FIG. 3 is a top view showing another embodiment of the cartridge cleaning agent of the present invention;
FIG. 4 is a longitudinal sectional view thereof. FIG. 5 is an explanatory diagram showing how the cartridge cleaning agent shown in FIG. 1 is used. 6, 7, and 9 are longitudinal cross-sectional views showing embodiments of the cartridge cleaning agent of the present invention; FIG.
FIG. 3 is an explanatory diagram showing how the cartridge cleaning agent shown in the figure is used. FIG. 1θ is a longitudinal sectional view showing another example of the structure of the cartridge cleaning agent, and FIG. 11 is an explanatory diagram showing the relationship between the cartridge cleaning agent and the jetted water. FIG. 12 is an explanatory diagram showing a conventional cartridge cleaning agent and its usage state. 11... Container 11a... Bottom surface 11b...
Side wall 11c...Base 13...Solid hydrating cleaning agent 13a...Opening face 15...Powder-like cleaning agent 17
... Opening port 21 ... Cavity part 31 ... Dissolution chamber 33 ... Water injection nozzle 35 ... Supply pipe 37 ... Cleaning agent 6 Fig. 7 Fig. 8 Fig. 3 Fig. 5

Claims (1)

[Claims] 1. A solid hydrated cleaning agent is poured and filled into a container having an open mouth, and the solid hydrated cleaning agent is poured into the solid hydrated cleaning agent from the open mouth side. A cartridge cleaning agent for a washing machine, characterized in that a cavity is formed that penetrates to the bottom of the container. 2. A cleaning characterized in that a powdery cleaning agent is stored and filled in a container having an open opening, leaving at least a portion of the depth, and a solid hydrated cleaning agent is poured and filled on top of the container. Machine cartridge cleaning agent.