WO2022065705A1

WO2022065705A1 - Scribble-removable play mat and method for manufacturing same

Info

Publication number: WO2022065705A1
Application number: PCT/KR2021/011289
Authority: WO
Inventors: 하소영
Original assignee: 하소영
Priority date: 2020-09-24
Filing date: 2021-08-24
Publication date: 2022-03-31
Also published as: KR102281661B1

Abstract

A scribble-removable play mat according to an embodiment of the present invention includes: a lower mat produced by foam-molding polyvinyl chloride (PVC); an adhesive applied to the upper surface of the lower mat; a plasticizer blocking agent layer coupled to the lower mat through the adhesive; and an upper mat that is formed on the upper surface of the plasticizer blocking agent layer, has a specific color printed on the rear surface, and is manufactured by mixing a specific proportion of inorganic matter. Thus, the present invention has the advantage that a matte UV curing coating layer that contains a specific proportion of inorganic matter in order to achieve matte properties and writing and erasing properties is formed on the upper surface of the play mat, so that the ingredients of scribbles written on the upper surface are prevented from infiltrating, and thus the scribbles can be removed using wet tissues.

Description

Play mat capable of removing graffiti and manufacturing method thereof

The present invention relates to a play mat capable of removing graffiti and a method for manufacturing the same, and more particularly, when the surface of the play mat is contaminated with graffiti by oil or water-based pens, crayons, ballpoint pens, lacquers, etc. It relates to a play mat capable of removing graffiti that does not penetrate the surface, and a method for manufacturing the same.

The transmission of noise between floors in an apartment building can be divided into 'general air noise' and 'shock noise'. If you play an instrument such as a piano, or raise the volume of your audio or TV, which causes noise damage to your neighbors, it can be classified as airborne noise.

Noise transmitted to the lower floor by dropping objects from the upper floor or by children jumping off the sofa is classified as impact noise. Since Korean apartments have a wall-type structure in which the wall supports the load, it is characterized by the fact that solid noise, that is, structure noise, is transmitted along the wall.

In the case of multi-story buildings such as apartments, most of the airborne sound is blocked by the concrete slab structure, but when an impact or vibration is directly applied to the floor due to a person walking or dropping an object from the upper floor, it becomes a solid-state sound. It has a characteristic that it is hardly attenuated by changing and radiates through floor slabs, ceilings or walls into the lower floors or adjacent households.

These "floor impact sounds" are broadly classified into light impact sounds that generate a lot of high-frequency components, such as the sound of a bowl or object falling, and chair movement, and heavy impact sounds that generate a lot of low-frequency components, such as adults walking or jumping children. do. There is a difference in how the thickness of the slab plate supporting the interlayer is used for impact noise, but rather than that, by changing the properties of the medium of the slab layer, the effect of preventing interlayer impact noise can be seen much more.

In recent years, as buildings become taller, and in particular, as apartment buildings, which are residential buildings, become taller, in order to reduce the construction cost and reduce the load, a separate inter-floor noise prevention pad is installed to prevent the noise generated between floors from being transmitted to the lower floors by thinning the floor thickness between each floor. are using

In general, playroom mats are widely used for multiple purposes, such as preventing children from getting hurt by installing them on the floor of a playroom where children often play, and preventing cold or contamination of the playroom floor. It consists of an upper layer in contact with the human body and a lower layer in contact with the floor so as not to be hit, and by bonding these upper and lower layers to each other, a buffer function is performed.

On the other hand, in families with children, when the child grows up and starts to hold crayons or pencils, he begins to scribble on wallpaper, mats, rugs, and furniture in the room.

Graffiti has great significance in the development of a child because it develops coordination, the ability to simultaneously or sequentially execute movements of various parts of the body. It is reported that the large muscles of the body are developed, and by expressing one's inner world through graffiti, creativity and expressive power are nurtured, and it is reported that there is an effect of relieving stress.

However, while graffiti fosters creativity and expressiveness in children like this, graffiti done indiscriminately on wallpaper, hardwood floors, furniture, etc. gives a messy feeling.

Because children do not only scribble with a single writing tool, but rather with pencils or crayons, as well as ballpoint pens, oil-based pens, or water-based pens, there is a lot of difficulty in erasing graffiti expressed on wallpaper, mats, or furniture at home. there is.

In general, pencil scribbles can be erased with a clean eraser, but there is a problem in that the removal operation is very difficult when the range of scribbles is wide.

In addition, crayons can be easily removed by rubbing the graffiti several times after soaking the oil-based massage cream, flushing cream, or cooking oil on a dry rag. there is.

Ballpoint pen graffiti and oil pen graffiti are easily erased with water paste or ethanol for disinfection, but there is a problem that the removal of graffiti is very difficult because, if careless, the ink of the ball pen or oil pen can be diluted by the ethanol and spread to other parts of the wallpaper.

In particular, when graffiti with an oil-based pen is left unattended for a long time, it is difficult to erase because the oil-based ink melts into the mat.

In addition, water-based pen graffiti can be easily erased with a wet cloth, but there is a problem that the ink of the water-based pen dissolves in water and spreads around it, so if you are careless, there is a problem that stains remain on other parts of the wallpaper.

The present invention provides a play mat capable of removing graffiti that prevents graffiti material from penetrating the surface of the play mat when the surface of the play mat is contaminated with graffiti by oil or water-based pens, crayons, ballpoint pens, lacquer, etc. and a method for manufacturing the same aim to do

In addition, the present invention forms a matte UV curing coating layer containing a specific ratio of minerals on the upper surface of the play mat to implement matte properties and writing and erasing properties, thereby preventing the components of graffiti described on the upper side from penetrating. An object of the present invention is to provide a play mat capable of removing graffiti, which enables the removal of graffiti using wet tissues, and a method of manufacturing the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

A method of manufacturing a play mat capable of removing graffiti for achieving this purpose is a lower mat produced by foam molding polyvinyl chloride (PVC), an adhesive applied to the upper surface of the lower mat, and the upper surface of the lower mat through the adhesive A plasticizer barrier layer attached to the surface to improve the thermoplasticity of the play mat and a specific ratio of inorganic and very-low-density polyethylene (VLDPE) are used. and an upper mat attached to the upper surface.

In one embodiment, the upper mat is formed on the lower surface of the matte ultraviolet curing coating layer formed on the upper surface by applying a coating composition that is cured by ultraviolet irradiation to the upper surface to a predetermined thickness, the printed layer formed on the lower surface, and the lower surface of the printed layer, the upper mat and an adhesive layer forming a mat on the upper surface of the plasticizer barrier layer.

In one embodiment, the matte UV-curable coating layer contains 20% by weight of a matting agent to 100% by weight of the UV-UV curable coating composition.

In one embodiment, the inorganic material is implemented as at least one of fine powdered stone powder, calcium carbonate, and potassium carbonate, so that when graffiti is applied to the matte UV curing coating layer, the pen component that generated the graffiti is prevented from penetrating.

Among the embodiments, the method of manufacturing a play mat capable of removing graffiti includes the steps of manufacturing a lower mat by foam molding polyvinyl chloride (PVC), applying an adhesive to the upper surface of the lower mat, and then applying a plasticizer blocker to the upper surface of the adhesive Forming a layer, manufacturing an upper mat using a specific ratio of minerals and very-low-density polyEthylene (VLDPE), and attaching it to the upper surface of the plasticizer barrier layer, and to the rear surface of the upper mat and forming an upper mat on the upper surface of the plasticizer barrier layer through the formed adhesive.

In one embodiment, the step of preventing the graffiti components described on the upper surface from penetrating by surface-treating the upper surface of the upper mat with an inorganic material in a specific ratio is cured by UV irradiation on the upper surface of the upper mat. Coating composition Forming a matte UV curing coating layer by applying on the upper surface to a certain thickness, forming a printed layer on the lower surface of the upper mat, and forming the upper mat on the lower surface of the printed layer on the upper surface of the plasticizer blocker layer. forming a layer.

In one embodiment, the step of forming the matte UV-curable coating layer comprises the steps of generating a coating composition by including 20% by weight of a matting agent in 100% by weight of the UV-curable coating composition and applying the coating composition to the upper surface to a certain thickness and drying and forming the matte UV curing coating layer through an UV curing machine.

In one embodiment, when the inorganic material is implemented as at least one of fine powdered stone powder, calcium carbonate, and potassium carbonate, and the graffiti is applied to the matte UV curing coating layer, the step of preventing penetrating components of the pen that generated the graffiti.

According to the present invention as described above, when the surface of the play mat is contaminated with graffiti by oil or water-based pens, crayons, ballpoint pens, lacquers, etc., there is an advantage that graffiti materials do not penetrate the surface of the play mat.

In addition, according to the present invention, by mixing a specific ratio of minerals and very-low-density polyethylene (VLDPE: Very-Low-Density PolyEthylene) to create the upper mat of the play mat, the components of graffiti described on the upper side can be prevented from penetrating. It has the advantage of being able to remove graffiti using wet tissues.

1 is a view for explaining a play mat capable of removing graffiti according to an embodiment of the present invention.

2 is a view for explaining the structure of the upper mat according to an embodiment of the present invention.

3 is a flowchart for explaining an embodiment of a method of manufacturing a play mat capable of removing graffiti according to the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Among the terms used herein, "play mat that can remove graffiti" may be a matte mat that can remove graffiti implemented with PAT, LDPE, HDPE, PP, nylon, PVC, or the like.

1 is a view for explaining a play mat capable of removing graffiti according to an embodiment of the present invention. 2 is a view for explaining the structure of the upper mat according to an embodiment of the present invention.

Referring to FIG. 1 , the play mat 10 capable of removing graffiti includes a lower mat 100 , an adhesive 200 , a plasticizer blocker 300 , and an upper mat 400 .

The lower mat 100 is manufactured by foam molding polyvinyl chloride (PVC) resin. Polyvinyl chloride resin is widely used as a material for high-quality mats because it has good resilience, good cushioning and tactile feel, and does not slide due to its weight.

The lower mat 100 is made to have excellent cushioning power by foaming polyvinyl chloride (PVC) resin in a thermal chamber heated to a high temperature of about 200°C to 250°C.

When the temperature inside the thermal chamber is lowered to 200° C. or less, the foaming rate of the PVC resin is lowered and foaming is not performed sufficiently, and accordingly, the mat does not have a sufficient cushioning feeling. In addition, if the temperature inside the thermal chamber rises to 250 ℃ or more, the polyvinyl chloride (PVC) resin is melted and cannot be used.

The polyvinyl chloride (PVC) resin is an interpolymer containing 50% or more of vinyl chloride, and properties vary depending on molecular weight and reaction conditions. Polyvinyl chloride (PVC) resin is vulnerable to ultraviolet rays, so it is discolored yellow or brown and becomes brittle. Therefore, it is generally used in combination with a stabilizer.

The adhesive 200 is formed in a semi-dry state by applying a pressure-sensitive adhesive pigment over the entire upper surface of the lower mat 100 produced by foam molding polyvinyl chloride (PVC) and then heating to 60° C. to 80° C.

In this case, the adhesive 200 is a material that can be easily attached and detached, such as a scotch tape, a double-sided tape, or an adhesive sheet. It uses ester rubber and phenolic resin as a raw material and ester rubber, phenol resin, etc. as raw materials, and combines low-molecular substances such as castor oil and polyisobutylene to have sticky adhesiveness. Unlike adhesives, adhesives use rubber-like resins rather than thermosetting resins to enable removal and attachment.

The plasticizer blocker 300 is attached to the upper surface of the lower mat 400 through the adhesive 200, and is an organic material that facilitates molding at high temperatures by increasing thermoplasticity. In addition to compatibility and plasticity, heat resistance, cold resistance, flame resistance, etc. to improve The plasticizer barrier layer includes dioctyl phthalate (DOP), dioctyl adipate (DOA), tricresyl phosphate (TCP), and the like, and dioctyl phthalate is preferable.

The upper mat 400 is attached to the upper surface of the plasticizer blocker layer 300 through an adhesive formed on the rear surface, and may have a thickness of a certain strength to support the configuration of the play mat 10 capable of removing graffiti. .

This upper mat 400 is produced by mixing a specific ratio of minerals and very-low-density polyethylene (VLDPE), and is based on the upper side due to a specific ratio of minerals mixed with very-low-density polyethylene (VLDPE). Prevents graffiti ingredients from penetrating.

The inorganic material is implemented as at least one of fine powdered stone powder, calcium carbonate, and potassium carbonate, so that when graffiti is applied to the matte UV curing coating layer, it is possible to prevent penetrating components of the pen that generated the graffiti.

That is, when the surface of the play mat from which graffiti can be removed according to an embodiment of the present invention is contaminated with graffiti by oil or water-based pens, crayons, ballpoint pens, lacquers, etc. Graffiti can be removed using a wet tissue so that it does not penetrate the surface.

When the matte UV curing coating layer 410 is coated on the upper mat 400 , a material having excellent adhesion and workability is used, and various materials having the same characteristics may be used.

As the primer used for surface treatment of the upper mat 400, resin coating such as urethane resin and acrylic resin and physical treatment such as corona and plasma may be used, and the chemical composition of the upper mat 400 It is not limited to the ingredients, the pretreatment method of the surface and the processing method.

That is, the coating composition may be applied to the upper surface of the upper mat 400 to a predetermined thickness, and the matte ultraviolet curing coating layer 410 may be formed through a dryer and an ultraviolet curing machine.

A printing layer 420 and an adhesive layer 430 are formed on the bottom surface of the upper mat 400 .

The printing layer 420 formed on the bottom surface of the upper mat 400 is printed several times in different colors or the same color depending on the field to which the matte mat 10 capable of removing graffiti, which is a finished product, is finally applied.

In addition, since the printed layer 420 is located on the bottom surface of the upper mat 400 , it is not removed by destruction or abrasion of the non-pore UV curing coating layer 410 .

In addition, the adhesive layer 430 formed on the bottom surface of the upper mat 400 on which the matte UV curing coating layer 410 is formed is a permanent adhesive in consideration of the field to which the matte adhesive sheet 300, which is the finished product, is finally applied and the ease of attachment and detachment. Alternatively, it is formed through a drying and curing process by uniformly applying a removable adhesive.

On the other hand, the permanent adhesive or remover is not limited to what is usually used as the adhesive is known in the art.

For example, an acrylic pressure-sensitive adhesive may be used for durability and strong adhesive strength, or an aqueous pressure-sensitive adhesive may be used for economic efficiency. The above-described examples are only application examples and do not limit the field of application of the present invention.

Referring to FIG. 3 , in step S110, polyvinyl chloride (PVC) is foam-molded to manufacture a lower mat. At this time, polyvinyl chloride (PVC) resin has good resilience, good cushioning and tactile feel, and is widely used as a material for high-quality mats because it does not slide due to its weight.

Polyvinyl chloride (PVC) resin is foamed in a thermal chamber heated to a high temperature of about 200°C to 250°C to provide excellent cushioning power.

In step S120, after the adhesive is applied to the upper surface of the lower mat, a plasticizer barrier layer is formed on the upper surface of the adhesive.

Here, the plasticizer barrier layer is an organic material that facilitates molding at high temperatures by increasing the thermoplasticity, and improves heat resistance, cold resistance, flame resistance, etc. in addition to compatibility and plasticity. The plasticizer barrier layer includes dioctyl phthalate (DOP), dioctyl adipate (DOA), tricresyl phosphate (TCP), and the like, and dioctyl phthalate is preferable.

In step S130, the upper mat is formed using a specific ratio of inorganic and very-low-density polyethylene (VLDPE: Very-Low-Density PolyEthylene). At this time, since the upper mat contains minerals in a certain ratio, the graffiti components described on the upper side are prevented from penetrating, and the graffiti is removed cleanly even after washing with water because it is simply maintained on the surface.

This step S130 is a step of forming a matte UV curing coating layer by applying a coating composition that is cured by UV irradiation on the top surface of the top mat to a predetermined thickness on the top surface, forming a printed layer on the bottom surface of the top mat, and the printing layer. and forming a pressure-sensitive adhesive layer on a bottom surface of the upper mat to form an upper surface of the plasticizer blocker layer.

In step 140, the upper mat is formed on the upper surface of the plasticizer barrier layer through the adhesive formed on the rear surface of the upper mat.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which are various modifications and variations from these descriptions by those skilled in the art to which the present invention pertains. Changes are possible. Accordingly, the spirit of the present invention should be understood only by the claims described below, and all equivalents or equivalent modifications thereof will fall within the scope of the spirit of the present invention.

Claims

In the play mat that can remove graffiti,

a lower mat manufactured by foam molding polyvinyl chloride (PVC);

an adhesive applied to the upper surface of the lower mat;

a plasticizer barrier layer attached to the upper surface of the lower mat through the adhesive to improve the thermoplasticity of the play mat; and

When graffiti is applied to the matte UV curing coating layer, an inorganic and very-low-density polyethylene (VLDPE: Very-Low-Density Polyethylene ) and includes an upper mat attached to the upper surface of the plasticizer barrier layer through an adhesive formed on the rear surface,

The upper mat is

A matte UV curing coating layer formed on the top surface by applying a coating composition that is cured by UV irradiation to the top surface to a certain thickness;

a printed layer formed on the bottom; and

and a pressure-sensitive adhesive layer formed on the bottom surface of the printing layer to form the upper mat on the top surface of the plasticizer blocker layer.

A play mat with removable graffiti.
The method of claim 1,

The matte UV curing coating layer is

characterized in that it contains 20% by weight of a matting agent based on 100% by weight of the UV curable coating composition

A play mat with removable graffiti.
manufacturing a lower mat by foam molding polyvinyl chloride (PVC);

forming a plasticizer barrier layer on the upper surface of the adhesive after applying an adhesive to the upper surface of the lower mat;

When graffiti is applied to the matte UV curing coating layer, an inorganic and very-low-density polyethylene (VLDPE: Very-Low-Density Polyethylene ) to prepare an upper mat and attaching it to the upper surface of the plasticizer barrier layer; and

forming an upper mat on the upper surface of the plasticizer barrier layer through an adhesive formed on the rear surface of the upper mat;

The step of preventing the components of graffiti described on the upper surface from penetrating by treating the upper surface of the upper mat with minerals

Forming a matte UV curing coating layer by applying a coating composition that is cured by UV irradiation on the top surface of the upper mat and contains an inorganic material on the top surface to a predetermined thickness;

forming a printed layer on the bottom surface of the upper mat; and

and forming an adhesive layer forming the upper mat on the upper surface of the plasticizer blocker layer on the lower surface of the printing layer.

How to make a play mat that can remove graffiti.
4. The method of claim 3,

The step of forming the matte UV curing coating layer is

Creating a coating composition by including 20% by weight of a matting agent based on 100% by weight of the UV curable coating composition; and

and applying the coating composition to the upper surface to a certain thickness and forming the matte UV curing coating layer through a dryer and an UV curing machine.

How to make a play mat that can remove graffiti.