Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Coated or impregnated woven – knit – or nonwoven fabric which... – Fabric composed of a fiber or strand which is of specific...
Reexamination Certificate
1999-07-30
2002-11-05
Cole, Elizabeth M. (Department: 1771)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Coated or impregnated woven, knit, or nonwoven fabric which...
Fabric composed of a fiber or strand which is of specific...
C442S081000, C442S082000, C442S084000, C442S090000, C428S903000
Reexamination Certificate
active
06475934
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a wet cloth for cleaning, water repellent finish and polishing of an automobile paint film. Particularly, the present invention relates to a wet cloth for cleaning, water repellent finish and polishing of an automobile paint film with which a stain or dirt attaching to the automobile paint film can be removed and at the same time, water repellency and glossiness are given to the paint film, only by wiping the body of an automobile.
2. Description of the Prior Art
While it has been general that an automobile body is frequently cleaned in order to keep the body beautiful and treated with a film forming agent such as wax or the like in order to prevent a stain or dirt from fixedly adhering to the surface thereof, not only do washing and a water repellent, glossy film forming treatment consume lots of water, labor and time, but influences of the cleaning and the like on the environment (a waste water treatment of used water in car washing and the like) have to be seriously considered.
Besides, when no parking lot is available near a home due to the recent housing problem, a car washing machine at a car cleaning station, a gas station or the like has to be utilized, which unfavorably not only consumes much of time and labor but also becomes monetary burden.
Besides, as methods for forming a glossy film with water repellency, there has been employed a conventional method using a car wax, which comprises a series of steps of: sufficiently swabbing water left on the body of an automobile after washing; applying a wax thereon; vaporizing a solvent; wiping away the wax therefrom and the like, which has been resulted in causing a problem that not only the series of steps take considerable time for performing, but wiping of wax feels heavy and the wax is hard to be successfully removed. Hence, a method whereby an automobile can be taken care of with ease and simplicity has seriously been desired to be available.
SUMMARY OF THE INVENTION
The present invention has been made in light of the state of the above mentioned conventional technique in order to eliminate an operation of car washing in cleaning an automobile body and forming a glossy film with water repellency and solve weak points such as poor time efficiency in formation of a glossy film with water repellency and poor workability in wax wiping. That is, it is accordingly an object of the present invention is to provide an excellent wet cloth which can not only remove a stain and dirt attaching to an automobile body, but can also simultaneously form a glossy film with water repellency, only by wiping the body.
A wet cloth for cleaning, water repellent finish and polishing according to the present invention is a cloth which is impregnated with a liquid which is prepared by dispersing a water repellent component in water using an emulsifier. As a water repellent component used in the present invention, one or more selected from the group consisting of a silicone compound, a fluorine compound, a wax and a waxy substance can be used and further, as an emulsifier, a surfactant can preferably be used.
As cloths, a non-woven cloth is preferably used.
In the present invention, as a cloth, a cloth is preferably used which contains lipophilic fibers and hydrophilic fibers in ratio of content preferably ranged from 80:20 to 50:50 by weight.
In the present invention, an effect of the present invention can be further exerted by use of a cloth which has a three layer structure which is obtained by arranging lipophilic fiber layers made of lipophilic fibers on both sides of a hydrophilic fiber layer made of hydrophilic fibers.
As the cloth mentioned above, a cloth can be used which is made using yarns spun from natural fibers and synthetic fibers singly or in mixture.
A cloth made by yarns spun from ultra, super fine fibers of less than 0.3 denier each is especially preferred to be used.
DETAILED DESCRIPTION OF THE INVENTION
A wet cloth for cleaning, water repellent finish and polishing according to the present invention is obtained by impregnating a cloth with a wet cloth treating agent which is prepared by dispersing a water repellent component in water using an emulsifier and, by wiping the surface of an automobile paint film directly with the wet cloth, not only are a stain and dirt removed from the surface of the automobile paint film but a water repellent film is also formed on the paint film surface.
As water repellent components used in a wet cloth for cleaning, water repellent finish and polishing, there can be named: a silicone compound, a fluorine compound, a wax, a waxy substance and the like, which have all conventionally been used as a water-repellent, polishing agent.
A silicone compound is preferably used since the compound well satisfies all the requirements such as water repellency, a fixedly adhering property, general versatility and the like. As such silicone compounds, there can be named, for example, an organo-polysiloxane and preferably, a dimethylpolysiloxane among organo-polysiloxanes.
Further, a modified dimethylpolysiloxane which is obtained by modifying part of dimethylpolysiloxane with an organic functional group can be used. Modified dimethylpolysiloxanes can at least improve glossiness, give dirt preventiveness and/or improve a fixedly adhering property by an introduced organic functional group. As modified dimethylpolysiloxanes, there can be named: for example, amino-modified dimethylpolysiloxane, alkyl-modified dimethylpolysiloxane, alkylaralkyl-modified dimethylpolysiloxane, fluorine-modified dimethylpolysiloxane, epoxy-modified dimethylpolysiloxane, alkoxy-modified dimethylpolysiloxane, carboxyl-modified dimethylpolysiloxane, methacryloxy-modified dimethylpolysiloxane, ester-modified dimethylpolysiloxane, amid-modified dimethylpolysiloxane, polyether-modified dimethylpolysiloxane, alcohol-modified dimethylpolysiloxane, phenol-modified dimethylpolysiloxane, methylphenyl-modified dimethylpolysiloxane, methylhydrogen-modified dimethylpolysiloxane, mercapto-modified dimethylpolysiloxane and the like.
Among them, amino-modified dimethylpolysiloxane, carboxyl-modified dimethylpolysiloxane, alkoxy-modified dimethylpolysiloxane, ester-modified dimethylpolysiloxane and the like, all of which have polar groups respectively, have a good fixedly adhering property to a paint film and when they are each used in combination with the dimethylsiloxane, a film with sustainable water repellency can be formed by a synergetic effect therebetween.
Besides, in addition to the above described, a liquid can be used which is prepared by dissolving a trimethyl siloxi silicate expressed by a general formula (formula 1) described below in a non-volatile oily component. As such non-volatile oily components, there can be named: a dimethylpolysiloxane and a modified form thereof, and various kinds of mineral oils. Such a solution of a trimethyl siloxi silicate is remained on the surfaces of fibers without hardening in impregnation of a cloth with the solution and can also migrate to the surface of a paint film from the impregnated cloth in a proper manner to form a uniform water repellent film on the surface of the paint film while adhering thereto. On top of this, thus obtained water repellent film is excellent in the sustainability.
[(CH
3
)
3
SiO
½
]X·[SiO
2
]Y (formula 1)
wherein the formula 1, X=1 to 3 and Y=0.5 to 8.
Then, in the present invention, a liquid fluorine compound with water repellency can be used. As such fluorine compounds, there can be named: for example, low grade polymers such as a perfluoroalkylpolyether, tetrafluoroethylene and trifluoroethylene. Further, there can be named various kinds of derivatives such as perfluoroalkylethers which are respectively terminated with functional groups such as a hydroxyl group, a carboxyl group, an isocyanate group and the like. These compounds are very stable thermally and chemically and show a good lubricating ability over a wide temperature range
Hidaka Ryutaro
Nonaka Jun-ichi
Armstrong Westerman & Hattori, LLP
Cole Elizabeth M.
Soft 99 Corporation
LandOfFree
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