KR102702451B1 - Cleaning pad - Google Patents

Abstract

The present invention provides a scrubber comprising: upper and lower nonwoven outer layers; a sponge provided between the nonwoven outer layers; and a solid detergent provided between the nonwoven outer layers and the sponge. The scrubber according to the present invention has high absorbency and high hardness, so that it has excellent durability and cleaning power. In addition, the scrubber according to the present invention has a built-in detergent, so that it is convenient to use outdoors where it is inconvenient to prepare detergent separately, and an anti-slip means is provided to prevent the scrubber from coming off the palm due to detergent foam, etc. during washing, so that it is more convenient to use.

Description

CLEANING PAD

The present invention relates to a dishwashing sponge, and more specifically, to a dishwashing sponge having high hardness and excellent durability and cleaning power, including a sponge and/or a solid detergent provided between nonwoven outer layers, and which can be conveniently used outdoors without a separate detergent.

Conventional dishcloths are manufactured by cutting nonwoven fabrics into appropriate sizes or by winding them into rolls, and then cutting them into appropriate sizes for use by users. However, dishcloths of this type have the disadvantage that, because they are thin, their hardness weakens when they come into contact with water, and thus their cleaning power is insufficient.

One way to solve these problems is to use metallic materials such as stainless steel. For example, registered utility model KR20-0467076 discloses a dishcloth manufactured by blending synthetic fiber yarn and stainless steel yarn. In addition, registered utility model KR20-0230006 discloses a dishcloth manufactured using a fabric woven from polypropylene yarn.

However, dishcloths manufactured using this type of fabric have the problem of long drying times after washing.

For example, dishcloths are usually dried in a natural state after use. In this case, as the drying time passes, microorganisms such as bacteria can multiply, which can cause serious problems in hygiene and safety. Dishwashing cloths made of non-woven fabric do not have a separate ventilation structure, so as the drying time gets longer, there is also an additional problem of microbial growth. According to the inventors' experiments, when the drying time is 12 hours, it was confirmed that microorganisms such as Staphylococcus aureus and Salmonella increase by about 20 times or more compared to when the drying time is 6 hours, and in particular, in the case of food poisoning bacteria, it increased by 1 million times.

Accordingly, as a result of efforts to develop a dishwashing sponge with excellent cleaning power and quick drying, the present invention was completed by confirming that, when a nonwoven material with excellent hardness and a ventilation structure is used and, additionally, a solid detergent is added to the outer shell, not only can the above-mentioned problems be solved, but also dishes, automobiles, etc. can be washed without the inconvenience of having to prepare a separate detergent when used outdoors.

The purpose of the present invention is to provide a dishwashing sponge having excellent cleaning power and quick drying.

Another object of the present invention is to provide a dishwashing sponge with a built-in detergent that not only has excellent cleaning power and dries quickly, but also has a built-in detergent so that it can be used outdoors without having to prepare a separate detergent.

In order to achieve the above object, the present invention provides a dishwashing sponge including upper and lower nonwoven outer layers; and a sponge provided between the nonwoven outer layers.

An anti-slip means may be additionally provided on one side of the non-woven outer skins above.

It is preferable that the above nonwoven outer covering is a nonwoven fabric made of polypropylene.

More preferably, the nonwoven outer shell is a spunlace polypropylene nonwoven fabric.

It is preferable that the above polypropylene spunlace nonwoven fabric is manufactured using fibers having a hardness of 4.5 to 7.5 gf/D (denier).

In addition, the present invention provides upper and lower nonwoven outer layers; a sponge provided between the nonwoven outer layers; and a solid detergent provided between the nonwoven outer layers and the sponge.

It is preferable that the above solid detergent be a film-type detergent.

It is preferable that the above nonwoven outer shell, sponge and solid detergent are bonded by ultrasonic fusion to have a hardness of 4.0 gf/D (denier) or more.

The dishwashing sponge according to the present invention has excellent durability and cleaning power by adopting nonwoven fabric, which is a material with high absorbency and high hardness, as its outer skin.

The dishwashing sponge according to the present invention can have a built-in detergent, making it convenient for use outdoors where it is inconvenient to prepare detergent separately.

Figure 1 is a schematic cross-sectional view showing the layered structure of a washer according to the present invention.
Figure 2 is an enlarged photograph of the surface of the outer skin (10) of the washer according to the present invention.
FIG. 3 is a schematic diagram exemplifying the design of a mold used in manufacturing a washer according to the present invention described above.
Figure 4 is a schematic cross-sectional view showing the layer structure of a detergent-containing washing machine according to the present invention.
Figure 5 is a schematic diagram of a built-in detergent dishwashing sponge (200) equipped with an anti-slip means.

Referring to the attached drawings, a washer according to the present invention will be described.

Fig. 1 is a schematic cross-sectional view showing the layered structure of a dishwashing sponge according to the present invention. Referring to Fig. 1, a dishwashing sponge (100) according to the present invention includes upper and lower nonwoven outer layers (10); and a sponge (20) provided between the nonwoven outer layers.

In the embodiment of the dishwashing sponge (100) of the present invention, the nonwoven outer cover (10) may be a nonwoven fabric made of polypropylene. Since the nonwoven fabric made of polypropylene has higher strength than natural fiber materials, such as viscose, a dishwashing sponge manufactured using the polypropylene has the advantage of maintaining the shape of the fabric even when washing dishes, etc. with a high load.

In a preferred embodiment of the present invention (100), spunlace polypropylene nonwoven fabric is used as the nonwoven outer covering (10).

Spunlace nonwoven fabric is a method of manufacturing a nonwoven fabric by first forming a web by releasing fibers and arranging them in a certain direction, and then applying a high-pressure water stream to this web. In the case of a spunlace nonwoven fabric, pores that penetrate the nonwoven fabric can be formed by applying a high-pressure water stream. Therefore, when a spunlace nonwoven fabric is used, it has excellent moisture absorption, rapid moisture absorption, and ventilation compared to a fabric or a nonwoven fabric manufactured by another method, such as a spunbond nonwoven fabric. When a dishcloth manufactured from it comes into contact with water, it can rapidly absorb water, and furthermore, it is advantageous for drying after use.

The polypropylene spunlace nonwoven fabric applied to the washcloth (100) according to the present invention refers to a spunlace nonwoven fabric containing polypropylene fibers as a main component, specifically, at a ratio of 50 wt% or more. As an additional component, for example, a nonwoven fabric may be manufactured by mixing other fibers at a content of 50 wt% or less for specific purpose modification, such as mixing viscose fibers or polyester fibers to manufacture a nonwoven fabric for the purpose of further improving strength and durability.

In an embodiment of the present invention, the polypropylene spunlace nonwoven fabric is preferably manufactured using fibers having a hardness of 4.5 to 7.5 gf/D (denier). The hardness of the polypropylene spunlace nonwoven fabric is essential when the outer skin and the sponge are bonded together through ultrasonic welding, which will be described later. If the hardness of the nonwoven fabric does not meet the standard, defects such as the outer skin being torn after ultrasonic welding may occur.

Fig. 2 is an enlarged photograph of the surface of the outer cover (10) of the dishcloth according to the present invention. Referring to Fig. 2, it can be confirmed that pores at regular intervals are regularly formed on the spunlace polypropylene nonwoven outer cover. Through the pores, rapid water absorption and excellent ventilation are ensured. Excellent ventilation enables rapid drying after using or washing the dishcloth.

In the case of nonwoven fabrics made by the spunlace method, there is an additional advantage in that various shapes of patterns can be formed on the base plate (mold) on which the fabric subjected to hydraulic pressure is placed, thereby diversifying the external appearance of the manufactured dishcloth.

The dishwashing sponge of the present invention has a sponge built in between the upper and lower outer skins described above. Any foam or foam made of polymer material having an open-cell structure can be used as the sponge. The open-cell structure is essential for rapid water absorption and discharge, and rapid drying after washing. In addition, the open-cell structure also helps in foam generation of the detergent.

The sponge used for the above-mentioned washing is usually made of polyurethane foam or foam, but the material of the sponge is not limited to this.

In an embodiment of the present invention, it is preferable to use a sponge having an average pore size of 0.1 mm or more.

In a preferred embodiment of the present invention, it is preferable to use a sponge having a thickness of 5 to 10 mm.

The dishwashing sponge of the present invention is manufactured by laminating a nonwoven outer layer and a sponge (including a solid detergent, if necessary) and then bonding each layer. The method of bonding each layer is preferably an ultrasonic welding method. The advantage of ultrasonic welding is that various patterns can be formed on the surface of the dishwashing sponge depending on the point, line, or plane where welding takes place.

In the embodiment of the dishwashing sponge (100) of the present invention, the weight of the dishwashing sponge is preferably 50 to 60 g, for example, when the dishwashing sponge is manufactured to a size of 125*90*5~10 mm. When the weight of the dishwashing sponge is less than 50 g, the dishwashing sponge cannot properly perform its role of absorbing water, and when it exceeds 60 g, it is not suitable for disposable use.

Fig. 3 is a schematic diagram showing an example of a design of a mold used in the production of a washcloth according to the present invention described above. Fig. 3 shows an example of a mold having various fruit-shaped patterns engraved thereon, such as a melon shape, a paprika shape, a pumpkin shape, a grape shape, and a strawberry shape, but the shape of a washcloth manufactured according to the present invention is not limited thereto.

In the dishwashing sponge (100) according to the present invention, although not shown in the drawing, an anti-slip means (40) may be additionally provided on the outer surface of the outer shell (10) to prevent the dishwashing sponge (100) from coming off from the user's palm and for the convenience of use when washing. The anti-slip means may be, for example, in the form of a band having a certain width, and may preferably be provided as a ring-type fixing means, for example, such that a part of the dishwashing sponge can be inserted therein, in such a way that it covers a part of the lengthwise direction with a certain width, for example, near the center based on the lengthwise direction.

The material of the above anti-slip means (40) may be, for example, the same material as the outer skin, but is not limited thereto.

In the present invention, a solid detergent is additionally provided between the outer shell of the dishwashing sponge and the sponge described above, thereby providing a sponge with a built-in detergent.

Figure 4 is a schematic cross-sectional view showing the layer structure of a detergent-built-in dishwashing sponge according to the present invention. Referring to Figure 4, a dishwashing sponge (200) according to the present invention includes upper and lower nonwoven outer layers (10); a sponge (20) provided between the nonwoven outer layers; and a solid detergent (30) provided between the nonwoven outer layers and the sponge.

In the above detergent-containing sponge (200), the non-woven outer shell (10) and sponge (20) are as described above.

In the detergent-built-in dishwashing sponge (200) according to the present invention, a solid detergent (30) is provided between the outer shell (10) and the sponge (20). By building in the solid detergent (30), it is convenient to use outdoors rather than in an indoor kitchen without the need for separate preparation of detergent.

FIG. 4 is a drawing exemplarily showing that a solid detergent (30) is provided between one side of a sponge (20) and an outer shell (10). In FIG. 4, the solid detergent (30) is shown to be provided only on one side of the sponge (20), but it is of course possible for the solid detergent (30) to be provided on both sides of the sponge (20) in the present invention.

In an embodiment of the present invention, the solid detergent (30) is preferably manufactured in a film form. A film-type detergent has the advantage of being able to prevent leakage to the outside of the dishwashing sponge compared to a powder-type detergent.

Film-type detergents are typically made by mixing a detergent composition containing a surfactant with a water-soluble polymer and solidifying it into a film form.

In the above, the detergent composition containing a surfactant must be one in which there is no change in the cleaning component when the inner skin is fused. For example, it can be a composition in which 30% or more of a surfactant, 3 to 5% of an enzyme, 1 to 3% of an alkaline agent, 2.0% or less of a formulation agent, 1% or less of baking soda, and 0.5% or less of caustic soda are mixed.

Meanwhile, the water-soluble polymer may be, for example, an oxyethylene polymer.

In the detergent-built-in dishwashing sponge (200) according to the present invention, an anti-slip means (40) may be additionally provided on the outer surface of the outer shell (10) for the convenience of using the dishwashing sponge (100). The anti-slip means is as described above.

Figure 5 is a schematic diagram of a detergent-built-in dishwashing sponge (300) equipped with an anti-slip means. Referring to Figure 5, in the case of a detergent-built-in dishwashing sponge (200), the anti-slip means (40) is preferably provided on the surface of the outer shell (10) on the opposite side where the solid detergent (30) is located with respect to the sponge (20).

In an embodiment of the present invention, the joining of the outer shell (10) and the sponge (20); or the outer shell (10), the sponge (20) and the solid detergent (30); etc. is suitably done by the ultrasonic fusing method. Ultrasonic fusing is a method of fusing by generating frictional heat through vibration energy generated when applying ultrasonic waves of 18 KHz or higher. The ultrasonic fusing is useful as a joining method that maintains the shape by preventing the outer shell, the sponge and the solid detergent from falling off.

Additionally, the scrubber (100, 200) according to the present invention can be formed by joining the outer shell (10) and the sponge (20); or the outer shell (10), the sponge (20) and the solid detergent (30) by ultrasonic fusing, and then the circumference of the scrubber can be sealed by a high-frequency fusing method. The high-frequency fusing for manufacturing the scrubber of the present invention is performed, for example, by applying a current of 450 Hz and by a point bonding or line bonding method.

Although the present invention has been described in detail above only with respect to the described specific examples, it will be apparent to those skilled in the art that various modifications and variations are possible within the scope of the present invention, and it is natural that such modifications and variations fall within the scope of the appended claims.

The dishwashing sponge according to the present invention can be used for cleaning tasks such as dishwashing, kitchen and furniture cleaning, and washing the interior and exterior of automobiles, and in particular, the dishwashing sponge with built-in detergent can be used for single or repeated use to wash dishes, etc. during outdoor activities such as camping and mountaineering.

100 : Susemi
200 : Built-in detergent dishwashing sponge
10: Non-woven outer shell
20 : Sponge
30: Solid detergent
40: Anti-slip means

Claims (14)

Non-woven outer covering of the upper and lower parts; and
A sponge having an open-cell structure provided between the non-woven outer layers;
The above non-woven outer shell is a polypropylene spunlace non-woven fabric in which pores are regularly formed at regular intervals.
The above polypropylene spunlace nonwoven fabric is manufactured using fibers having a hardness of 4.5 to 7.5 gf/D (denier),
The thickness of the above sponge is 5 to 10 mm, and the weight is 50 to 60 g.
An additional ring-type anti-slip means is provided on one of the upper and lower non-woven outer surfaces, into which the user's finger or part of the hand can be inserted.
The above non-woven outer covering is a non-woven material made of polypropylene,
A dishcloth characterized in that the nonwoven outer skin and the sponge are bonded to have a hardness of 4.0 gf/D (denier) or higher by ultrasonic fusion, which forms various patterns on the surface of the dishcloth according to points, lines, and planes where fusion occurs by applying ultrasonic waves of 18 KHz or higher. delete delete delete delete delete delete Non-woven upper and lower outer shells;
A sponge having an open-cell structure provided between the non-woven outer layers; and
A solid detergent provided between the non-woven outer shell and the sponge;
The above non-woven outer shell is a polypropylene spunlace non-woven fabric in which pores are regularly formed at regular intervals.
The above polypropylene spunlace nonwoven fabric is manufactured using fibers having a hardness of 4.5 to 7.5 gf/D (denier),
An additional ring-type anti-slip means is provided on one of the upper and lower non-woven outer surfaces, into which the user's finger or part of the hand can be inserted.
The above non-woven outer covering is a non-woven material made of polypropylene,
The above solid detergent is a film-type detergent mixed with 30% or more of surfactant, 3 to 5% of enzyme, 1 to 3% of alkali, 2.0% or less of formulation agent, 1% or less of baking soda, and 0.5% or less of caustic soda.
A dishcloth characterized in that the nonwoven outer skin, sponge and solid detergent are bonded to a hardness of 4.0 gf/D (denier) or higher by ultrasonic fusion, which forms various patterns on the surface of the dishcloth according to points, lines and planes where fusion occurs by applying ultrasonic waves of 18 KHz or higher.
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