JP4444524B2 - Car wash detergent - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a car wash detergent, a car wash method using the same, and a car wash machine.
[0002]
[Prior art]
Conventionally, a car wash machine has a detergent coating device, a pretreatment agent coating device, and a wax coating device. The detergent application device applies a detergent (washer agent) mainly composed of a nonionic (nonionic) surfactant to a vehicle. The pretreatment agent coating device is composed of a pretreatment agent (foaming agent) mainly composed of an anionic (anionic) surfactant (some combination of a nonionic surfactant and an anionic surfactant). It is applied to the vehicle, adsorbs dirt on the vehicle body and brushes with a nonionic surfactant, foams with an anionic surfactant, and penetrates all over the surface of the vehicle body. The wax application device applies aqueous wax to a vehicle to which a pretreatment agent has been applied. Aqueous wax is made by dispersing the wax component in water with a cationic (cationic) surfactant. The anionic surfactant that has already permeated the body surface and the cationic surfactant of the aqueous wax. The ability of these surfactants to be lost by the neutralization reaction with the cation of the agent allows the wax component that has been stably solubilized in the aqueous wax to be deposited on the surface of the vehicle body and adhered thereto.
[0003]
Then, the excess wax component deposited on the surface of the vehicle body is washed away by the clean water and drained together with the dirt substance removed from the surface of the vehicle body.
[0004]
However, a conventional car wash machine is provided with a flocculant tank and an oil / water separator, and the flocculant in the flocculant tank is dropped onto the floor surface of the car wash or the oil / water separator, and flows along the floor of the car wash. The excess wax components and dirt substances contained in the above-described car wash wastewater entering the separation device are aggregated by a flocculant and separated by precipitation to improve the water quality of the wastewater.
[0005]
[Problems to be solved by the invention]
However, the prior art has the following problems.
(1) The flocculant is supplied from the flocculant tank every time the car is washed, and there is a risk of forgetting to supply from the tank or forgetting to replenish the tank. There are difficulties.
[0006]
(2) The flocculant is supplied only to the dripping point on the floor of the car wash and the dripping point of the oil / water separator, not to be distributed widely throughout the floor of the car wash or the entire area of the oil / water separator. Further, it is impossible to uniformly agglomerate the entire car wash drainage, and it is difficult to reliably improve the quality of the car wash drainage by the coagulant.
[0007]
An object of the present invention is to reliably and easily agglomerate surplus wax components in car wash wastewater together with dirt substances by a flocculant, and to reliably improve the quality of car wash wastewater.
[0008]
[Means for Solving the Problems]
The invention of claim 1 is a car washing detergents used prior to applying the aqueous wax dispersed in water wax components by cationic surfactant vehicle, detergent injection pipe from the detergent tank by a pump car washing machine comprising In a detergent for car wash sprayed on a vehicle via a polyaluminum chloride in an amount of 15% by weight or less, an anionic surfactant having a polarity opposite to that of the cationic surfactant of the aqueous wax is 50% by weight. Hereinafter, a water-miscible organic solvent is contained in an amount of 40% by weight or less .
[0009]
The invention according to claim 2 is the invention according to claim 1, wherein a nonionic surfactant having a detergency for a vehicle body and a brush is further added, so that the total amount of the anionic surfactant and the nonionic surfactant is 50. It is intended to be less than wt% .
[0010]
According to a third aspect of the present invention, there is provided a detergent application step of applying a detergent to a vehicle from a detergent tank through a detergent injection pipe by a pump provided in the car wash machine , and a wax application step of applying an aqueous wax to the vehicle to which the detergent is applied. In the car wash method, the detergent according to claim 1 or 2 is used .
[0011]
The invention of claim 4 is a detergent applicator for applying a detergent to a vehicle from a detergent tank via a detergent injection pipe by a pump provided in the car wash machine , a wax application device for applying an aqueous wax to a vehicle to which the detergent is applied, In a car wash machine having a detergent applicator and a control device for controlling the wax applicator, the detergent according to claim 1 or 2 is used .
[0012]
[0013]
[0014]
[Action]
The present invention has the following actions (a) to (d).
(a) flocculating agent serving polyaluminum chloride are added from the beginning to the detergent to be applied always vehicle during car washing, there is no fear that forget supply of polyaluminum chloride in car wash wastewater, car wash wastewater by polyaluminum chloride Water quality can be improved reliably.
[0015]
(b) Polyaluminum chloride is added to the detergent applied to the vehicle prior to the water-based wax, and before the water-based wax is applied, the excess wax component is awaited on the surface of the vehicle body or the floor surface of the car wash station, and this is immediately aggregated. Therefore, it is possible to reliably improve the water quality of the car wash drainage using polyaluminum chloride .
[0016]
(c) Since polyaluminum chloride is added to the detergent and not added to the aqueous wax, the wax component released from the surfactant of the aqueous wax before application of the aqueous wax is removed by the polyaluminum chloride. There is no aggregation and precipitation, and the uniform dispersibility of the wax component in the aqueous wax is not impaired.
[0017]
(d) Polyaluminum chloride is added to the detergent widely applied to the entire vehicle body surface of the vehicle by the detergent application device, so the polyaluminum chloride is a special device for the entire vehicle body surface and the entire floor surface of the car wash. Regardless of this, the water can be easily dispersed and supplied, and the entire car wash drainage can be uniformly agglomerated, and the water quality of the car wash drainage can be reliably improved by polyaluminum chloride .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic view showing a car wash machine.
The car wash machine 10 has left and right guide rails 12 and 12 installed in a car wash yard 11 that can introduce a car wash target vehicle, and has a car wash frame 13 that reciprocates relative to the vehicle along the guide rails 12 and 12. .
[0019]
The car wash machine 10 includes a rotating brush (not shown) that brushes and cleans the surface of the vehicle body of the vehicle on the car wash frame 13, as well as a pretreatment agent application device 21 (detergent application device), a wax application device 22, a rinse device 23, and a drying device. (Not shown) is provided in the car wash frame 13. At this time, the car wash machine 10 has a water pump 24 and a water supply pipe 25.
[0020]
The down-treatment agent application device 21 is provided with a down-treatment agent injection pipe 21A on the car wash frame 13, communicates a pump 21C connected to the down-treatment agent tank 21B to the down-treatment agent injection pipe 21A, and a water supply pipe 25. Is communicated with the pretreatment agent injection pipe 21A by the electromagnetic valve 26. The down-treatment agent application device 21 is driven and controlled by the control device 30 to drive the pump 21C, and the electromagnetic valve 26 is controlled to open and close. The down-treatment agent (detergent) of the down-treatment agent tank 21B is mixed with fresh water and sprayed on the vehicle. To do. Here, the pretreatment agent is a foam agent containing 50% by weight or less of a known anionic surfactant (which can also be used as a nonionic surfactant) and 40% by weight or less of a water-miscible organic solvent. A polyaluminum chloride (PAC) as a flocculant is added in a blending amount .
[0021]
The wax application device 22 is provided with a wax injection pipe 22A on the car wash frame 13 and communicates a pump 22C connected to the wax tank 22B to the wax injection pipe 22A. A water supply pipe 25 is connected to the wax injection pipe 22A by a solenoid valve 27. It communicates with 22A. The wax application device 22 is driven and controlled by the control device 30 to control the pump 22C and the electromagnetic valve 27 is controlled to open and close, and the aqueous wax in the wax tank 22B is mixed with fresh water and sprayed on the vehicle. Here, the aqueous wax is a surfactant having a property opposite to that of a surfactant (anionic surfactant) as a pretreatment agent, such as carnauba wax, and in this embodiment, a cationic surfactant in water. It is an O / W type emulsion solution dispersed in.
[0022]
In the rinsing device 23, a fresh water injection pipe 23A is disposed in the car wash frame 13, and a water supply pipe 25 is communicated with the fresh water injection pipe 23A by an electromagnetic valve 28. The rinsing device 23 is controlled to open and close the electromagnetic valve 28 by the control device 30, and sprays fresh water on the vehicle.
[0023]
Therefore, the car wash machine 10 performs the following car wash operation in the process of reciprocating the car wash frame 13 relative to the vehicle by the control operation of the control device 30.
[0024]
(1) A pretreatment agent containing polyaluminum chloride is sprayed on the surface of the vehicle body of the vehicle by the pretreatment agent application device 21, and the surface of the vehicle body is brushed with a rotating brush to remove dirt on the surface of the vehicle body.
[0025]
(2) The pretreatment agent containing polyaluminum chloride sprayed before or during the brushing described in (1) above becomes car wash wastewater and reaches the oil / water separator 15 from the reservoir 14 installed in the car wash station 11. To do. The floor surface of the car wash 11 and the oil / water separator 15 are filled with a nonionic surfactant, an anionic surfactant, a water-miscible organic solvent, and polyaluminum chloride . A nonionic surfactant and a water-miscible organic solvent are used to adsorb dirt on the vehicle body and the brush, and foamed with an anionic surfactant to penetrate all over the surface of the vehicle body.
[0026]
(3) The aqueous wax is sprayed on the surface of the vehicle body by the wax application device 22. The anionic surfactant anion already infiltrated into the vehicle body surface and the cation of the aqueous wax cation react with the cation of the aqueous surfactant, thereby losing the ability of these surfactants and making the aqueous wax stable. The wax component that has been solubilized is deposited on the surface of the vehicle body so that it adheres.
[0027]
(4) Washing off excess water wax on the surface of the vehicle body by clean water supplied by the rinsing device 23, excess wax components and dirt substances not deposited on the surface of the vehicle body, but finally, the surface of the vehicle body with a drying device Remove water droplets adhering to.
[0028]
(5) The surplus water wax and surplus wax components washed off from the vehicle body surface in (4) above, together with the soiling substances, flow from the floor surface of the car wash station 11 to the oil / water separator 15 through 14 to be collected. It is mixed with a nonionic surfactant, an anionic surfactant, a water-miscible organic solvent, and polyaluminum chloride filled in the inside. The aqueous wax can react with its cationic surfactant with an anionic surfactant to precipitate the wax component. In this way, both the wax component precipitated from the excess aqueous wax washed off from the surface of the vehicle body and the excess wax component washed away from the surface of the vehicle body are transferred from the floor surface of the car wash station 11 to the oil / water separator 15. In the process of flowing, it is agglomerated together with the dirt substance by polyaluminum chloride, and is separated by precipitation with the oil / water separator 15. As a result, the car wash wastewater becomes sewage with improved water quality.
[0029]
Incidentally, car wash machine 10, in the previous step of the pretreatment coating step of the pretreatment agent applying apparatus 21 for applying a pretreatment agent (foam agent) composed mainly of anionic surfactant in the vehicle, another detergent application You may perform the detergent application | coating process which apply | coats the detergent (washer agent) which has a nonionic surfactant which has the washing power of a vehicle body or a brush as a main component with a device. In the car wash machine 10 having such another detergent application step, the detergent is a blend of 15 wt% or less in a washer agent containing 50 wt% or less of a known nonionic surfactant and 40 wt% or less of a water-miscible organic solvent. An amount of polyaluminum chloride (PAC) added in an amount is used.
[0030]
According to this embodiment, there are the following operations.
(a) flocculating agent serving polyaluminum chloride are added from the beginning to the pretreatment agent applied always vehicle during car wash (or detergent), it eliminates the possibility that forget supply of polyaluminum chloride in car wash wastewater, poly It is possible to reliably improve the quality of car wash drainage with aluminum chloride .
[0031]
(b) Polyaluminum chloride is added to the pretreatment agent (or detergent) applied to the vehicle prior to the aqueous wax, and waits for the excess wax component on the car body surface or the floor of the car wash before applying the aqueous wax. As a result, the water quality of the car wash drainage can be reliably improved with polyaluminum chloride .
[0032]
(c) Since the polyaluminum chloride is added to the pretreatment agent (or detergent) and is not added to the aqueous wax, the wax is released from the surfactant of the aqueous wax before the application of the aqueous wax. The components are not aggregated and precipitated by polyaluminum chloride, and the uniform dispersibility of the wax component in the aqueous wax is not impaired.
[0033]
Since the (d) the pretreatment agent applying apparatus 21 (or detergent coating apparatus) under treatment agent is widely applied to the entire area of the body surface of the vehicle (or detergent) are added polyaluminum chloride, polyaluminum chloride vehicle the entire floor of the entire or car wash the surface regardless of the particular device can easily widely dispersed fed, the entire car wash wastewater can exert equally agglomeration, quality car wash wastewater by polyaluminum chloride Improvements can be made reliably.
[0034]
In the practice of the present invention, for example, the following can be employed as the surfactant.
[0035]
Nonionic (nonionic) surfactant POE (polyoxyethylene) alkyl ether, POE alkylphenyl ether, polyoxyalkylene glycol ether, polyhydric alcohol ester, EG / PEG ester, fatty acid methyl ester, fatty acid EO adduct, alkylamine EO adduct, alkyldiamine EO adduct, alkylamide EO adduct, alkylamine oxide, etc.
Anionic (anionic) surfactant Metal soap, alpha olefin sulfonate, alkylbenzene sulfonate, alkyl sulfate ester salt, alkyl phenyl ether sulfate ester salt, ether sulfonate salt, sulfated oil, ether carboxylic acid and its salts , Alkyl naphthalene sulfonic acid formalin polycondensate, polycarboxylate, polystyrene sulfonate, etc.
Cationic (cationic) surfactant monoalkyl ammonium chloride, dialkyl ammonium chloride, EO addition type ammonium chloride, quaternary ammonium salt, amine acetate, cationic cellulose derivative, etc.
Examples of the wax component of the aqueous wax include carnauba wax, montan wax, wood wax, sugar wax, beeswax, whale wax, wool wax, ozokerite, paraffin wax, microcrystalline wax, carbowax, polyethylene wax, and chlorinated naphthalene. Wax or the like (mixing amount of about 0.1 to 40% by weight) can be used. In addition, mineral oil, hydrocarbon solvent, liquid paraffin, silicone oil, etc. can be used as the solvent component.
[0039]
In addition, alcohol, ethylene glycol, propylene glycol, diethylene glycol, glycol monoalkyl ether and other water-miscible organic solvents are used for the pretreatment agent and water-based wax, and hard water stabilizers, preservatives, rust inhibitors, etc. are used as additive aids. it can.
[0040]
Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention.
[0041]
【The invention's effect】
As described above, according to the present invention, it is possible to reliably improve the water quality of the car wash wastewater by the polyaluminum chloride as the coagulant.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a car wash machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Car wash machine 21 Pretreatment agent coating device 22 Wax coating device 30 Control device

Claims (4)

This is a detergent for car wash that is used before applying water-based wax, in which the wax component is dispersed in water with a cationic surfactant, to the vehicle, and is sprayed from the detergent tank to the vehicle via the detergent injection pipe by the pump provided in the car wash machine. In car washing detergent
Containing polyaluminum chloride in a blending amount of 15% by weight or less,
A detergent for car washing , comprising an anionic surfactant having a polarity opposite to that of the cationic surfactant of the aqueous wax in an amount of 50% by weight or less and a water-miscible organic solvent in an amount of 40% by weight or less . The car wash detergent according to claim 1, wherein a nonionic surfactant having a detergency for a vehicle body and a brush is added together , and the total amount of the anionic surfactant and the nonionic surfactant is 50% by weight or less . In a car wash method having a detergent application step of applying a detergent to a vehicle from a detergent tank via a detergent jet pipe by a pump provided in the car wash machine, and a wax application step of applying an aqueous wax to the vehicle on which the detergent is applied,
A car washing method using the detergent according to claim 1 or 2 as a detergent. Detergent applicator for applying a detergent to a vehicle from a detergent tank via a detergent jet pipe by a pump provided in the car wash machine, a wax applicator for applying aqueous wax to a vehicle to which the detergent is applied, a detergent applicator and a wax applicator A car wash machine having a control device for controlling
A car wash machine using the detergent according to claim 1 or 2 as a detergent.

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