KR101018326B1 - A light-storage whiteboard - Google Patents

A light-storage whiteboard Download PDF

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Publication number
KR101018326B1
KR101018326B1 KR1020100115793A KR20100115793A KR101018326B1 KR 101018326 B1 KR101018326 B1 KR 101018326B1 KR 1020100115793 A KR1020100115793 A KR 1020100115793A KR 20100115793 A KR20100115793 A KR 20100115793A KR 101018326 B1 KR101018326 B1 KR 101018326B1
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KR
South Korea
Prior art keywords
film
blackboard
photoluminescent
function
weight
Prior art date
Application number
KR1020100115793A
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Korean (ko)
Inventor
이동민
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이동민
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Priority to KR1020100115793A priority Critical patent/KR101018326B1/en
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Publication of KR101018326B1 publication Critical patent/KR101018326B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/002—Repeatedly-usable boards or tablets for writing or drawing chemical details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
    • B43L1/006—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices with luminescent substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/64—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing aluminium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

PURPOSE: A blackboard with a photoluminescent function is provided to prevent the generation of scratches on the front side of the blackboard by applying a transparent board film on the front side of the blackboard. CONSTITUTION: A blackboard(10) includes a medium density fiberboard(100), a metal steel board(200), a photoluminescent material(300), a clear film(400), and a transparent board film(500). Ultraviolet hard coating(110) is applied on both sides of the medium density fiberboard. The metal steel board is attached on the front side of the medium density fiberboard. The photoluminescent material is coated on the front side of the metal steel board. The clear film is attached to the front side of the photoluminescent material. The transparent board film is attached on the front side of the clear film.

Description

Blackboard with luminous function {A LIGHT-STORAGE WHITEBOARD}

The present invention relates to a blackboard having a photoluminescent function, and more particularly, to a blackboard having a photoluminescent function that can help children's creativity and imagination by emitting light in the dark after luminous natural light and artificial light.

In general, classrooms of schools and academies have blackboards of various sizes on the wall, and professors and teachers use chalk to display letters or drawings on the blackboard to explain the contents to students who are taking classes more efficiently. Done. Conventional blackboards used in this way are mainly made of dark green, and white, blue, red, yellow chalk can be used to write letters.

However, in the case of a blackboard using chalk, there is a risk that fine chalk powder is blown into the human body in the process of writing or erasing letters on the blackboard. Chalk powder, which is a powder of lime carbonate or baked gypsum, can be inhaled into the lungs of the body and cause respiratory diseases. Therefore, in recent years, a white board having a white smooth surface and capable of erasing and deleting a memo with an aqueous ink pen has been widely used as an alternative to the black board.

These whiteboards are harmless to humans because they do not use chalk, and they are easy to erase because they use water-based ink pens. Therefore, white boards are widely used for not only schools, academies, companies, but also regular homes, and the like. In particular, whiteboards are being installed indoors so that children can graffiti freely. However, the white board has a problem that children can easily lose interest because it has no function other than simply writing and erasing a white board.

The present invention has been proposed to solve the above problems of the conventionally proposed methods, by having a photoluminescent material that emits light for a long time in the dark after luminous all kinds of light, such as natural light and artificial light in a short time, Its purpose is to provide a blackboard with a luminous function that can stimulate children's curiosity and help develop imagination and creativity.

In addition, the present invention, while helping to improve the emotional development of children through the function of emitting light after luminous, it is possible to improve the memorization of children by writing down English words or learning core content, etc., the luminous material is limited luminous time Another object is to provide a blackboard with a luminous function that does not disturb children's sleeping using.

In addition, the present invention, because the transparent board film is used on the front side is harmless to the human body and prevents enough scratches, and can be produced by printing a variety of other patterns such as photos or stationery, such as schedule management, notepad, etc. Another object of the present invention is to provide a blackboard having a photoluminescent function that can greatly improve user satisfaction by producing various kinds of products suitable for the purpose.

According to a feature of the present invention for achieving the above object, the blackboard having a photoluminescent function,

Medium Density Fiberboard (MDF) with UV hard coating on both sides;

A metal steel sheet attached to the front surface of the heavy fiber plate;

A photoluminescent material coated on the front surface of the metal steel sheet;

A clear film attached to the front surface of the photoluminescent material; And

It characterized in that the configuration comprising a transparent board film attached to the front of the clear film.

Preferably, the metal steel sheet,

Galvanized Steel Sheets.

Preferably,

It may further include a frame attached to the outside for maintaining the shape and position fixing.

Preferably, the transparent board film,

A plurality of lines for calendars or notes for scheduling can be printed on the front side.

Preferably,

It may further include a live-film film inserted between the photoluminescent material and the clear film and printed pictures, letters or photos.

Preferably, the transparent board film,

It may be made of polyester resin, polyolefin resin, or polypropylene resin.

More preferably, the transparent board film,

It can be prepared by adding white inorganic particles to a base film made of a polyester resin, a polyolefin resin, or a polypropylene resin.

Even more preferably, the white inorganic particles,

Barium sulfate, titanium, titanium compounds, silicon dioxide, calcium carbonate, magnesium oxide and talc may be any one selected from the group consisting of or a mixture of at least two or more selected from the group.

Preferably, the photoluminescent material is

It can be prepared by mixing a polyvinyl chloride sol with a luminescent pigment prepared by the formula MeO.xAl 2 O 3 .ySiO 2 .Eu (where x is 0.5 to 2 and y is 0.05 to 1.0).

More preferably, the polyvinyl chloride sol,

50 to 60% by weight of polyvinyl chloride resin (PVC; Poly Vinyl Chloride Resin);

Plasticizer 25 to 35% by weight;

1 to 5% by weight of an inorganic mixture (Inorganic Filler);

0.1 to 0.5% by weight of dimethyl polysiloxane (Di Methyl Poly Siloxane);

Stabilizer 1 to 5% by weight;

1 to 3% by weight of titanium dioxide (Titanium Dioxide); And

Pigment Color (Pigment Color) may comprise 1 to 3% by weight.

According to the blackboard having the luminous function proposed by the present invention, the luminous material can emit light for a long time in the dark after luminous all other kinds of light such as natural light and artificial light within a short time, thereby inducing children's curiosity. It can help develop imagination and creativity.

In addition, the blackboard having a luminous function according to the present invention can help children's emotional development through the function of emitting light after luminous, and at the same time write down English words or learning core contents, thereby improving children's memorization ability, A photoluminescent material with a limited light emission time can be used so as not to disturb children's sleeping.

In addition, the blackboard having a photoluminescent function according to the present invention is harmless to the human body because the transparent board film is used on the front surface and can sufficiently prevent the front scratch, and can be produced by printing a variety of other patterns such as photos or stationery. Therefore, various kinds of products suitable for various purposes such as schedule management and notepad can be produced, which can greatly improve user's satisfaction.

1 is a cross-sectional view of a blackboard having a photoluminescent function according to an embodiment of the present invention.
2 is a perspective view of a blackboard having a photoluminescent function according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, in describing the preferred embodiment of the present invention in detail, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The same or similar reference numerals are used throughout the drawings for portions having similar functions and functions.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' of an element means that the element may further include other elements, not to exclude other elements unless specifically stated otherwise.

1 is a cross-sectional view of a blackboard having a photoluminescent function according to an embodiment of the present invention. As shown in Figure 1, the blackboard 10 having a photoluminescent function according to an embodiment of the present invention, a heavy fiber plate 100, a metal steel plate 200, a photoluminescent material 300, a clear film 400, It may be configured to include a transparent board film (500).

Medium Density Fiberboard (MDF) 100 is a plate material made of wood fiber, synthetic resin and other mixtures, and is used to maintain the present invention in a flat flat shape. If the same solid plate-like material can be used instead of the heavy fiber plate (100).

At this time, the heavy fiber plate 100 is UV hard coating 110 on both sides, the reason for UV hard coating 110 is to hold the plate firmly to prevent distortion, to protect the present invention from moisture or external temperature. to be.

The metal steel plate 200 is attached to the front surface of the heavy fiber plate 100. Of course, since both sides of the heavy fiber plate 100 is UV hard coating 110, the metal steel plate 200 will be attached on top of the UV hard coating (110). In this case, the metal steel sheet 200 may use galvanized steel sheets for durability.

By using the metal steel sheet 200, the present invention can perform not only a luminous function but also a magnetic body attachment function. That is, the present invention uses the metal steel plate 200 provided therein, so that the user of the present invention can easily perform various tasks such as fixing a note paper or decorating an aesthetic appearance by using a magnetic material, and the user's satisfaction and convenience Can be greatly improved.

The photoluminescent material 300 is coated on the entire surface of the metal steel sheet. In order to increase the efficiency of photoluminescence by absorbing a large amount of light and at the same time to illuminate the whole of the front surface of the present invention, the photoluminescent material 300 may be coated on the front surface of the metal steel plate 200, or a specific pattern may be used to maximize children's curiosity. Alternatively, the photoluminescent material 300 may be coated in a letter shape.

As the photoluminescent material 300, a photoluminescent material which is generally widely used may be selected and used. However, it is preferable to use a bright photoluminescent material 300 such as pink, sky blue, or light green due to the characteristics of the white board. In addition, the present invention by coating the photoluminescent material 300 corresponding to the amount capable of emitting light for 30 minutes to 2 hours in the dark, it can be prevented from disturbing children's sleep. More specifically, polyvinyl chloride sol (not shown) is produced in a luminescent pigment (not shown) prepared by the formula MeO.xAl 2 O 3 .ySiO 2 .Eu (where x is 0.5 to 2 and y is 0.05 to 1.0). Not)) to produce the photoluminescent material 300. In this case, the light emitting pigment has a yellow color, a density of 3.6g / cm 3 and a temperature to withstand 250 ° C. The light emitted by the light emitting pigment is 200-450nm (up to 520nm), light yellow and can emit light for more than 8 hours. Do. Brightness with time of light-emitting pigments is shown in Table 1.

Minutes Brightness (m㏅ / ㎡) One 1542 5 411 10 207 20 99 30 61 40 45 50 33 60 26 Average particle size (μm) 25-50

As shown in Table 1, since the light-emitting pigment produced by the above-mentioned formula may emit light of 200 mPa / m 2 or more for 10 minutes, the photoluminescent material 300 including the light-emitting pigment has a high performance of photoluminescence and light emission. You can clearly see that it is very good.

In this case, the polyvinyl chloride sol mixed with the luminescent pigment and used to manufacture the photoluminescent material 300 may be prepared by appropriately blending a plurality of components as shown in Table 2.

ingredient ratio Most desirable ratio Polyvinyl chloride resin
(PVC; Poly Vinyl Chloride Resin) 50-60 wt% 57.8% Plasticizer 25-35 wt% 32% Inorganic Filler 1 to 5 wt% 3.5% Dimethyl Polysiloxane
(Di Methyl Poly Siloxane) 0.1-0.5 wt% 0.2% Stabilizer 1 to 5 wt% 3.5% Titanium Dioxide 1-3 wt% One% Pigment Color 1-3 wt% 2%

The clear film 400 is attached to the entire surface of the photoluminescent material 300. Protect the photoluminescent material 300, so as not to interfere with the transmission of light entering the photoluminescent material 300 and the light emitted from the photoluminescent material (300).

The transparent board film 500 is attached to the front surface of the clear film 400. Substrate made of polyester resin, polyolefin resin, or polypropylene resin, or made of polyester resin, polyolefin resin, or polypropylene resin to be easily erased using water-based ink filling writing instruments It can be prepared by adding white inorganic particles to the film. In this case, the white inorganic particles may be at least two or more mixtures selected from the group consisting of barium sulfate, titanium, titanium compounds, silicon dioxide, calcium carbonate, magnesium oxide and talc.

Specifically, the white inorganic particles having a size of 0.01 to 15 μm may be added to the resin forming the base film. The size of the white inorganic particles is to control optical properties such as light transmittance and color, and surface properties of friction coefficient and surface roughness. When the size of the white inorganic particles is less than 0.01㎛, the effect of improving the optical characteristics and surface properties is insignificant, and when the size of the white inorganic particles exceeds 15㎛, the surface roughness of the film is too large to have a rough feeling.

The base film can be produced from a polyester resin alone or a copolymer of a polyester resin and a polyolefin resin or a polypropylene resin. Polyester resin polycondenses the acid component which has aromatic dicarboxylic acid as a main component, and the glycol component which has alkylene glycol as a main component. In addition, by copolymerizing the polyolefin resin to the polyester resin, the texture of the transparent board film 500 can be utilized and the density of itself can be reduced. That is, when copolymerizing, fine pores are generated on the surface and inside of the film due to the incompatibility between the two resins, and thus the base film prepared by mixing with the polyolefin resin is lightened while improving the surface properties.

However, the transparent board film 500, the user can use the luminous function only when the light emitted from the photoluminescent material 300 is sufficiently transmitted, it is preferable to mix and adjust the ratio of the white inorganic particles as appropriate to about 5 to 40%. Do. That is, the transparent board film 500 is most preferably completely transparent, but should be made of a translucent that can transmit at least some of the light of the photoluminescent material 300 even if it is not transparent.

The transparent board film 500 may be printed with a plurality of lines for calendars or notes on the front. This is to allow the user to easily use the present invention for a purpose such as a calendar or a notepad, and of course, any pattern can be printed as long as the user's convenience can be improved such as a text and a picture in addition to the calendar and a memo.

In addition, the present invention may further include a live-action film (not shown). The live-action film is inserted between the photoluminescent material 300 and the clear film 400 and a picture, text, or photo is printed. As described in the transparent board film 500, the live-action film should also be made of a transparent or translucent material so that the light emitted from the photoluminescent material 300 can be transmitted to the front of the present invention. The live-action film may show a cartoon character or the like in order to induce children's interest, or may produce a picture desired by the user in the form of a film.

2 is a perspective view of a blackboard having a photoluminescent function according to an embodiment of the present invention. As shown in FIG. 2, the blackboard 10 having a photoluminescent function according to an embodiment of the present invention may further include a frame 600. Frame 600 is attached to the outside for shape maintenance and position fixing. In particular, when manufacturing the present invention in the form of a rectangular flat plate, by protecting the frame 600 is wrapped around the four sides of the outer, it is possible to prevent the present invention is damaged by an unexpected impact.

At this time, the frame 600, the transparent board film 500 may be provided with a writing instrument support base 610 that can put a variety of writing instruments used for drawing characters, etc. at the bottom, the live-action film can be inserted into the side Insertion holes (not shown) may be formed. Therefore, when the user wants to replace the optical film, the user may insert the optical film into the side of the frame 600, so that the present invention can easily replace the optical film, thereby greatly improving user convenience.

In addition, the frame 600 may be in a form to freely adjust the height of the transparent board film 500, a hook groove (not shown) to be fixed to the hook provided on the wall is formed on the upper back , Wheel 620 for movement may be installed at the bottom.

The present invention described above may be variously modified or applied by those skilled in the art, and the scope of the technical idea according to the present invention should be defined by the following claims.

10: blackboard with luminous function 100: heavy fiber board
110: UV hard coating 200: steel sheet
300: photoluminescent material 400: clear film
500: transparent board film 600: frame
610: writing implement support 620: wheel

Claims (10)

Medium Density Fiberboard (MDF) with UV hard coating on both sides;
A metal steel sheet attached to the front surface of the heavy fiber plate;
A photoluminescent material coated on the front surface of the metal steel sheet;
A clear film attached to the front surface of the photoluminescent material; And
It includes a transparent board film attached to the front of the clear film,
The photoluminescent material is,
Formula MeO · xAl 2 O 3 · ySiO 2 · Eu ( where, x is from 0.5 to 2, y is 0.05 to 1.0), the luminous function, characterized in that is made by mixing a polyvinyl chloride sol on the light emitting pigment prepared by Having blackboard.
The method of claim 1, wherein the metal steel sheet,
Blackboard having a photoluminescent function, characterized in that the galvanized steel sheets (Galvanized Steel Sheets).
The method of claim 1,
The blackboard having a photoluminescent function further comprises a frame attached to the outside for maintaining the shape and position fixing.
The method of claim 1, wherein the transparent board film,
Chalkboard with a luminous function, characterized in that a plurality of lines for printing a calendar or notes for scheduling management on the front.
The method of claim 1,
The blackboard having a photoluminescent function, characterized in that further comprising a live-film film inserted between the photoluminescent material and the clear film and printed pictures, letters or photos.
The method of claim 1, wherein the transparent board film,
A chalkboard having a photoluminescent function, comprising a polyester resin, a polyolefin resin, or a polypropylene resin.
The method of claim 6, wherein the transparent board film,
A blackboard having a photoluminescent function, which is prepared by adding white inorganic particles to a base film made of a polyester resin, a polyolefin resin, or a polypropylene resin.
The method of claim 7, wherein the white inorganic particles,
A blackboard having a photoluminescent function, characterized in that it is any one selected from the group consisting of barium sulfate, titanium, titanium compounds, silicon dioxide, calcium carbonate, magnesium oxide and talc or a mixture of at least two selected from the group.
delete The method of claim 1, wherein the polyvinyl chloride sol,
50 to 60% by weight of polyvinyl chloride resin (PVC; Poly Vinyl Chloride Resin);
Plasticizer 25 to 35% by weight;
1 to 5% by weight of an inorganic mixture (Inorganic Filler);
0.1 to 0.5% by weight of Di Methyl Poly Siloxane;
Stabilizer 1 to 5% by weight;
1 to 3% by weight of titanium dioxide (Titanium Dioxide); And
A blackboard having a photoluminescent function, characterized in that it comprises 1 to 3% by weight of Pigment Color.
KR1020100115793A 2010-11-19 2010-11-19 A light-storage whiteboard KR101018326B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200028176A (en) * 2018-09-06 2020-03-16 (주)에스디코퍼레이션 Luminous Board System

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940021280A (en) * 1993-03-05 1994-10-17 박경필 Blackboard with Liquid Crystal / Polymer Gel
KR100853848B1 (en) * 2007-10-09 2008-08-22 서삼상 The radiation film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940021280A (en) * 1993-03-05 1994-10-17 박경필 Blackboard with Liquid Crystal / Polymer Gel
KR100853848B1 (en) * 2007-10-09 2008-08-22 서삼상 The radiation film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200028176A (en) * 2018-09-06 2020-03-16 (주)에스디코퍼레이션 Luminous Board System
KR102201704B1 (en) * 2018-09-06 2021-01-12 (주)에스디코퍼레이션 Luminous Board System

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