KR100982091B1 - Manufacture method for inorganic electro luminescence attach material and thereof product - Google Patents

Abstract

The present invention relates to a method for manufacturing a material with an inorganic EL and a material produced according to the above, comprising: a step of drilling a specific portion of the fabric; Attaching a first adhesive film to a rear surface of the perforated portion; Attaching an inorganic EL film to a rear surface of the first adhesive film; Attaching the waterproof endothelial to the back of the inorganic EL film of the third step; By heating and pressing the perforated portion of the fabric is composed of five steps so that the first adhesive film and the waterproofing endothelial is in close contact with the inorganic EL film.

According to the present invention, it can be suitably applied to the wearer's desired design and purpose of use, commercialization is possible, and the flexibility is excellent because the wearer does not feel uncomfortable due to the light emitting area, and because it shines even when folded or folded, Malfunctions can be prevented, and excellent water resistance and waterproof performance can be maintained even in water washing or dry cleaning, thereby making it possible to manufacture a coating having excellent practicality.

Adhesion, Film, Inorganic, EL, Luminescent

Description

Manufacture method of material with inorganic EL and material manufactured according to it {MANUFACTURE METHOD FOR INORGANIC ELECTRO LUMINESCENCE ATTACH MATERIAL AND THEREOF PRODUCT}

The present invention relates to a method for producing a material with an inorganic EL and a material prepared according to the present invention, and more particularly, to apply an inorganic EL having a light emitting function in forming a pattern of various shapes on a material applied to clothing and clothing. It relates to a method for producing a material with an inorganic EL so that visibility can be improved.

Modern people enjoy various activities such as inline skating, skiing and hiking at night regardless of time due to the increase of leisure activities. However, there is a safety problem at night because less visibility is secured than daytime. In addition, people with special occupations, such as night workers and firefighters, have difficulty in working, and drivers do not have sufficient visibility when driving at night, causing many accidents of children.

In consideration of this point, clothes have been developed that can prevent accidents and increase safety by using various light emitting materials. However, clothing using these materials is limited in securing sufficient visibility, and therefore, better technology development and application are required. By applying a variety of technologies, it is necessary to develop a luminescent garment material that can reduce the various risk factors such as to secure the visibility of the wearer during night activities and to be visible from others and to increase the wearer's activity.

Some prior art of such a luminescent garment material has been proposed.

Luminex has developed a product that uses plastic optical fiber, which wraps around a central core that transmits light, scratches the clad that blocks light, weaves it with a regular fiber material, and then emits light. Light-emitting diodes (LEDs) are used to connect the light to leak the principle.

American design studio studio5050 has developed a hug-jacket, which has a conductive conductive fabric attached to the front of the jacket. When the lovers in the garment hug, the conductive fabrics of both garments touch and generate electricity. Light-emitting diodes (LEDs) are attached to the back of each jacket, and when lovers are in contact with each other, current from the front flows into the back of the jacket to produce light and sound.

Philips Design developed and introduced a prototype called "Frison," which is outfitted with tiny light-emitting diodes (LEDs) that emit light according to the degree of excitement of the wearer. It is designed to measure and display the response on the skin using physiological techniques. Each wearer can express a different emotional state or personality.

Meanwhile, the development of materials using EL (Electro Luminescence: EL) is also being made.

EL is thinner and more flexible than conventional LED back light and is used as backlight for small terminal LCD windows such as mobile phones and PDAs.

Power consumption is also lower than that of LED. However, due to the nature, when exposed to the outside life is shortened, it is weak to moisture, so it is necessary to coat or block the cotton.

EL is classified into organic EL and inorganic EL. Organic EL is a compound composed of H (hydrogen), O (oxygen) and N (nitrogen) centered on C (carbon), and inorganic EL does not contain C (carbon). It is a compound.

The organic EL emits light when current flows, and emits light throughout the plane and produces uniform brightness regardless of the viewing angle.

However, the organic EL is not suitable for use in a device that is turned on for a long time due to the problem of life, and therefore is not suitable for use as a material for the clothes and clothings of the present invention.

The present invention has been made to solve the above-mentioned problems of the prior art, it is possible to emit light by attaching the inorganic EL to the material is excellent visibility, in particular, the waterproof performance can be guaranteed even in harsh conditions such as wrinkles during washing or activity It is an object of the present invention to provide a method for producing a material with an inorganic EL and a material manufactured accordingly, so that the reliability of the product can be improved.

The object of the present invention, the first step of drilling a specific portion of the fabric; Attaching a first adhesive film to a rear surface of the perforated portion; It is achieved by a method for producing an inorganic EL attached material consisting of three steps of attaching the inorganic EL film on the back of the first adhesive film.

According to the present invention, the wearer can be suitably applied to the desired design and purpose of use, thereby enabling commercialization.

In addition, since the inorganic EL film is very thin, the flexibility is excellent, so that the wearer does not feel uncomfortable due to the light emitting part, and even when crumpled or folded, the malfunction can be prevented due to breakage.

In addition, excellent water resistance and waterproof performance can be maintained even in water washing or dry cleaning, it is possible to produce a coating having excellent practicality.

Hereinafter, the preferred embodiment of the present invention will be described in detail.

Attached Figure 1 is a process flow diagram for a method of manufacturing a material with an inorganic EL according to the present invention, Figure 2 is a cross-sectional view of a portion attached to the inorganic EL according to the present invention.

As shown in Figure 1 and 2, the method of manufacturing a material with an inorganic EL according to the present invention, the first step (S1) for puncturing a specific portion of the fabric 100, and the back of the perforated portion 150 Step 2 of adhering the first adhesive film 210 to (S2), step 3 of attaching the inorganic EL film 400 to the back of the first adhesive film 210 (S3), and the third step (S3) Step 4 of attaching the waterproof endothelial 500 to the back of the inorganic EL film 400 and heat-pressurizing the punched portion 150 of the fabric 100 to waterproof the first adhesive film 210 and the waterproof. Endothelial 500 is composed of five steps (S5) to be in close contact with the inorganic EL film 400.

The material referred to in the present invention is a generic term for fibers, fabrics, nonwovens, fabrics, leathers, and the like.

Hereinafter, each step will be described.

Step 1 (S1)

A specific portion of the fabric 100 is cut into a desired shape by laser cutting and perforated.

That is, in order to easily identify from the front, side, or back side, the sleeves or the back, which have the most movement, are perforated in a shape corresponding to a straight line, arc shape or pattern.

Step 2 (S2)

The first adhesive film 210 is attached to the back of the perforated portion 150.

The first adhesive film 210 is formed to be larger than the perforated portion 150 to be adhered, and the first adhesive film 210 is adhered to the fabric by heat and pressure to be described later.

The first adhesive film 210 is for fixing the inorganic EL film 400 in the post-processing process, and hot-melt in the form of a conventional film is used.

Hot-melt is a film that is melted by heat using a thermoplastic resin without using water or a solvent, prepared in a film state, and exerts an adhesive force through reheating.

This can be said to be a thermoplastic adhesive that adheres at 100% solids.

Conventional adhesives produced industrial waste at the time of manufacture and after manufacturing, which caused reprocessing costs and environmental problems, but this technology is an eco-friendly adhesive film that does not use conventional toxic organic solvents.

In addition, it is possible to maintain a uniform adhesive quality, which can improve the quality, and has a structure that can be cross-linked with the adherend without penetrating the adherend does not make the fiber hard, most fiber material Applicable to

Enables the production of products that can be activated by heat in various temperature ranges

Step 3 (S3)

The inorganic EL film 400 is attached to the rear surface of the first adhesive film 210. That is, the inorganic EL film 400 may be thermally fused by melting the first adhesive film 210 by heating and pressing.

Therefore, the inorganic EL film 400 is preferably formed to a much smaller size than the first adhesive film 210.

Inorganic EL is characterized by high safety because it is not likely to decay or deteriorate even when exposed to moisture or air.

In addition, it does not easily break, has a long lifespan, high thermal stability, almost no heat generation, consumes less than one third of the power consumption of the LED, and emits light in comparison to the LED, which is a point emission method because the entire surface emits light. Feed evenly.

Inorganic EL applied to the present invention has a higher brightness than organic EL, so the light is clear even during the day, and the time until the brightness is halved due to the end of life is 2.5 times longer than that of organic EL.

The production method of inorganic EL is produced by printing the silk screen on each layer on the ITO film.

3 is a cross-sectional view showing the structure of an inorganic EL film applied to the present invention.

As shown in FIG. 3, the inorganic EL film 400 has a back electrode layer 410 formed thereon, formed on top of the dielectric layer 420, a fluorescent layer 430 and a front electrode layer 440 thereon, A PET film layer 450 connected to a power source is formed, and is formed of a protective layer 460 formed under the back electrode layer 410.

The back electrode layer 410 serves as an electrode for supplying power together with the front electrode as carbon ink.

The fluorescent layer 430 is the most important layer to determine the characteristics of the EL to generate light by receiving power as a fluorescent paint.

The dielectric layer 420 serves as an insulating coating between the front electrode layer 440 and the back electrode layer 410 and induces a smooth emission of the fluorescent layer 430.

The front electrode layer 440 serves as a transparent electrode for emitting light generated from the fluorescent layer 430 to the outside.

Step 3-1

In the third step (S3), a protective layer 460 is further formed between the first adhesive film 210 and the inorganic EL film 400.

In this embodiment, a thermoplastic polyurethane film is used as the protective layer 460.

In order to attach the inorganic EL film 400, a constant heat and pressure are required. Since the polyurethane film withstands such heat and pressure well and deformation occurs, it may be combined with the inorganic EL film 400.

Polyurethane film has excellent elasticity and tensile strength, wear resistance is good and does not break in cold places.

In addition, it prevents grease and various pollutions and has high elongation of more than 500%, so it can be easily applied to various curved surfaces. It is mainly used for the parts requiring high elasticity and high strength, and can be bonded with thermoforming, high frequency molding, fiber and other materials, and improves chemical and physical properties.

Polyurethane film is widely used in various fields such as mobile phone keypad, LCD panel material, computer keyboard cover, raincoat, reflective sheet, waterproofing, packaging film, and other precision device protective film.

Accordingly, since the light of the inorganic EL film may be prevented from being uniformly distributed due to process problems such as scratches or contamination that may occur from the outside when the inorganic EL film 400 is overlapped, the protective layer of the present invention ( 460).

Step 3-2

The second adhesive film 220 is bonded between the rear surface of the protective layer 460 and the inorganic EL film 400 to make the inorganic EL film 400 durable.

The second adhesive film 220 is the same hot-melt as the first adhesive film 210 is used, it is melted and bonded by heat and pressure to be described later.

Step 4 (S4)

The waterproof endothelial 500 is attached to the rear surface of the inorganic EL film 400 of step 3 (S3).

The size of the waterproof endothelial 500 is larger than that of the inorganic EL film 400 and directly adhered to the first adhesive film 210 or the second adhesive film 220 while completely covering the inorganic EL film 400.

That is, the waterproof endothelial 500 may be fused to the rear surface of the first adhesive film 210 or the second adhesive film 220 by the heating and pressing.

The reason for adhering the waterproof endothelial 500 is that the inorganic EL film 400 is installed to prevent this because there is a high risk of deformation and damage during water penetration.

Therefore, the waterproof endothelial 500 is preferably a stretchable material that is not damaged by washing or wrinkling, such as nylon.

Step 5 (S5)

The first and second adhesive films 210 and 220 are melted by heating and pressing a specific portion of the fabric 100, in particular, the perforated portion 150 to heat the fabric 100, the waterproof inner shell 500, and the inorganic EL film 400. ) Is integrated by thermal fusion.

Particularly, when the inorganic EL film 400 is sewn into the fabric, moisture may penetrate through the holes of the stitches, so the waterproof endothelial 500 may be melted by heat fusion to fill the micropores, thereby maintaining airtightness. have.

Accordingly, the first and second adhesive films 210 and 220 and the waterproof inner shell 500 and the inorganic EL film 400 may be heat-sealed at the edges of the perforated portion 150 to have airtightness, thereby ensuring water resistance, and wrinkling operation. It can be in an unified state uneven.

Hereinafter, an example of utilizing the material to which the inorganic EL of the present invention is attached will be described.

4 and 5 are diagrams showing a garment attached with an inorganic EL of the present invention.

As shown in Figs. 4 and 5, a specific portion (sleeve portion of the garment C) is drilled, and an inorganic EL film 400 is attached to the back surface of the punched portion, and the connector is connected to the inorganic EL film 400. 410 is bonded, the flexible wire 6 for applying a current to the connector 410 is connected, the small-capacity inverter 2 or large-capacity inverter 4 for power supply is connected to the flexible wire (6) do.

The inverter refers to a device that supplies power to the inorganic EL film 400 to emit light. There are two main types of inverters, and their size and type can vary depending on the use of clothing to which weapons EL can be applied.

The use of the large-capacity inverter 4 for a relatively long time, such as leisure sports activities to enjoy at night, and the use of the small-capacity inverter 2 for a short time for entertainment purposes such as parties, etc.

Preferably, the large capacity inverter 4 has a rechargeable structure, and the small capacity inverter 2 uses a 1.5V battery.

The elastic wire 6 serves to transmit current and signals, and should be disposed where it does not interfere with the wearer's body and operation when attached to the garment, and improves wearability by manufacturing and using a signal line with a conductive fabric.

6 is a view showing the installation site of the weapon EL of the present invention.

As shown in FIG. 6, the protective film portion 450 is attached to the rear surface of the inorganic EL film 400, but the protective film portion 450 is attached to cover the connector 410, thereby forming the inorganic EL film 400. The durability of the joint portion of the connector 410 is improved to prevent breakage.

In order to find out the appearance change after washing of the garment with the inorganic EL film 400 prepared as described above, the experiment was commissioned to the Korea Textile Technology Research Institute, a national testing and testing institution, and the results are as follows.

The garment with the inorganic EL film 400 attached through the adhesive process was repeatedly subjected to 10 times by repeated washing. As a result, the shape of the inorganic EL film did not change, water did not seep, and the inorganic EL film did not peel off.

In addition, the appearance change after dry cleaning was evaluated in consideration of the possibility of commercialization of the garment using the material having the inorganic EL film 400 applied thereto.

The results of the experiment are shown in the following [Table 1] and [Table 2].

The measurement result of water resistance item was over 20000mm / H ₂ O, and this result is very good compared with the water resistance value of 20000mm / H ₂ O of Gore-Tex.

* Washing according to KS K ISO 6330

* Dry cleaning

As a result of the performance test of the garment using the material with the inorganic EL film 400 of the present invention as shown in the table below.

Appearance inspection after washing

In order to find out the shape change and the attachment state of the inorganic EL film 400 was selected for sports materials suitable for the purpose of the present invention.

Among the sports materials on the market, five kinds of fibers having similar uses but different fiber mixing rates, weave densities, and weights were selected and used in the experiment.

In order to evaluate the appearance after washing of the treated samples, the number of repeated washings was treated once, five times, and ten times, and the shape change and adhesion state of the inorganic EL film after washing were examined.

The number of washing was limited to 10 times in consideration of the relatively small number of washing due to the characteristics of sports materials, and the experiment was conducted by the method of KS K ISO 5077 (2002) / 6330 (2001).

Furthermore, in order to evaluate the durability by washing of dry cleaning, it wash | cleaned once by the commercial method.

In addition, the water resistance items were measured in order to understand the durability by the pressure of water, and material E was used by the KS K 0591-2004 method.

These experiments were conducted by the Korea Textile Technology Research Institute (KOTITI), a national testing and testing organization.

* Characteristics of material for inspection after washing

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

1 is a process flowchart of a method of manufacturing a material with an inorganic EL according to the present invention.

Figure 2 is a cross-sectional view of the portion attached to the inorganic EL according to the present invention.

3 is a cross-sectional view showing the structure of an inorganic EL film applied to the present invention.

4 and 5 is a view showing a garment attached with an inorganic EL of the present invention.

6 is a view showing the installation site of the inorganic EL of the present invention.

Explanation of symbols on the main parts of the drawings

2: small capacity inverter 4: large capacity inverter

6: stretch wire 100: fabric

150: punched portion 210: the first adhesive film

220: second adhesive film 300: protective layer

400: inorganic EL film 410: connector

450: protective film portion 500: waterproof inner skin

Claims (8)

Perforating a specific portion of the fabric to a desired shape; Attaching a first adhesive film to a rear surface of the perforated portion; Attaching an inorganic EL film to a rear surface of the first adhesive film; Attaching the waterproof endothelial to the back of the inorganic EL film of the third step; A fifth step of melting the first adhesive film by heat and pressure to fuse and integrate the fabric, the waterproofing inner shell, and the inorganic EL film; Method for producing a material with an inorganic EL, characterized in that it comprises a. delete delete The method of claim 1, And a protective layer is formed between the first adhesive film and the inorganic EL film in the third step. The method of claim 4, wherein And a second adhesive film adhered between the protective layer and the inorganic EL film. The method of claim 1, The inorganic EL film, A back electrode layer, a dielectric layer formed on the top of the back electrode layer, a fluorescent layer and a front electrode layer formed on the top, and a PET film layer connected to a power source, The method of manufacturing a material with an inorganic EL, characterized in that the protective layer is formed on the bottom of the back electrode layer. An inorganic EL film is attached to the rear surface of the perforated part, a connector is bonded to the inorganic EL film, and a flexible wire for applying a current to the connector is connected, and the power supply inverter is connected to the flexible wire. The inorganic EL film is attached to the rear surface of the inorganic EL film attached to the protective film portion, characterized in that the protective film portion is attached to cover the connector. The method of claim 7, wherein The inorganic EL film, A back electrode layer, a dielectric layer formed on the top of the back electrode layer, a fluorescent layer and a front electrode layer formed on the top, and a PET film layer connected to a power source, Inorganic EL attached material, characterized in that the protective layer is formed on the bottom of the back electrode layer.

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