KR20050015487A - Lable of electronic devices - Google Patents

Abstract

PURPOSE: An electronic device label is provided to identify the flooded state of the electronic device by checking an indicative layer of label without an additional process of manufacture. CONSTITUTION: An electronic device label includes an indicative layer. The indicative layer is formed on an entire surface or a partial surface of the electronic device label in order to identify a flooded state. The indicative layer includes a water-soluble resin. The water-soluble resin is formed with copolymer of vinylpyrrolidone and dimethylaminoetyl methylamine of 10 to 80 weight percent, acryl polymer of 10 to 80 weight percent, polyvinyl alcohol of 5 to 50 weight percent, and dye of less than 5 weight percent.

Description

Label for electronic devices

The present invention relates to a label for an electronic device having a function of displaying the submerged state, and more particularly, to a label for an electronic device to check whether the electronic device is immersed with the naked eye by changing the letters or figures engraved on the label surface during the immersion. It is about.

With the recent advances in IT technology, the spread of personal portable electronic devices such as mobile phones, PDAs, and notebook computers is increasing. In addition, the frequency of troubleshooting is increasing rapidly, and each manufacturer spends a lot of resources for after sales service. A large part of the requests for repairing personal portable electronic devices are the failures caused by drowning portable devices and batteries, which are not covered by the user's carelessness. The reality is that the company compensates and repairs the manufacturer's costs according to the compensation system.

Therefore, each manufacturer has a lot of trouble because it is necessary to investigate whether the portable electronic devices brought by the consumer drowned in the water due to consumer negligence. Each domestic manufacturer visually checks the color of power terminals such as batteries or mobile phones when consumers request compensation repairs. If the color of terminal is changed, it is regarded as drowning. I'm indebted.

In order to solve this problem, a method of separately attaching a display device that causes ink to bleed when water is wetted to the bottom of a mobile phone battery has been proposed and applied to a product. In this way, when the personal portable electronic device falls into the water, the ink on the display portion spreads, making it easier to identify the fault of the consumer.

However, in order to install such a display unit at the bottom of the battery, it is not only troublesome to re-install the display unit when the battery is assembled, but also the display unit must be separately prepared and processed to facilitate installation at the bottom of the battery, thereby reducing productivity. Side effects are occurring.

With the current boom in the IT industry, and the price of portable electronic devices is rapidly falling, each manufacturer is faced with a serious situation in which not only the compensation repair cost but also the manufacturing process cost must be reduced. Various ideas that can be reduced even if is required.

The present invention is to solve the problems as described above, the main purpose is to make it easy to visually check whether the electronic device is inundated. Another object of the present invention is to provide an electronic device with a display function to check whether the electronic device is inundated without any additional process.

The present invention consists in forming, in whole or in part, a display layer whose state is changed by contact with water on a label of an electronic device.

Hereinafter, the present invention will be described in detail.

In general, electronic devices are shipped with labels on the body and battery parts indicating simple markings such as device name, certification number, machine serial number, precautions for use, and bar code. The present invention makes it possible to display the submerged state of an electronic device by forming a display layer on the front surface or a part of the surface which may be changed by water on the surface of such a label.

As the display layer reacting with water, first, a water-soluble resin dissolved in water is used, and dyes or pigments are mixed to meet the requirements so that the water-soluble resin can exhibit any color and pattern. When manufacturing a label for an existing electronic device, it is possible to display the immersion state of the electronic device by forming a display layer composed of a water-soluble resin and a dye on the surface of the existing label continuously after printing the label.

The display layer thus formed exhibits a specific character or an arbitrary pattern and color, and when the electronic device is flooded, the water-soluble resin is dissolved in water, and the printed text, pattern, or color disappears or smears on the surface of the label. It will be easy to determine whether or not.

Examples of the water-soluble resin used in the present invention include a resin consisting of 10-80% by weight of a copolymer of vinylpyrrolidone, dimethylaminoethylmethylamine, 10-80% by weight of an acrylic polymer, and 5-50% by weight of polyvinyl alcohol. A composition is mentioned. Among the materials used as the resin, a copolymer of vinylpyrrolidone and dimethylaminoethylmethylamine serves to maintain the display layer as a basic resin capable of forming a hard film. If the content is less than 10% by weight, water solubility is insufficient, and when the content exceeds 80% by weight, dissolution occurs even in fine moisture such as sweat, which may cause problems in use.

The acrylic polymer, which acts as another binder, is water soluble and has excellent compatibility with the copolymer of vinylpyrrolidone-dimethylaminoethylmethylamine, and has excellent solubility in water, thereby providing a great advantage to the crude liquid. When the content of the acrylic polymer is less than 10% by weight, it is easily dissolved in water, and the display layer may be damaged by a small amount of sweat, and when it exceeds 80% by weight, printability tends to be poor. Polyvinyl alcohol serves to improve the printability and the appropriate content is 5-50% by weight. Outside the above range, printability is degraded. As needed, an antifoamer and surfactant can be added to said resin according to a required characteristic. The thickness of the display layer is variable depending on requirements, but about 3-30um is appropriate.

As described above, dyes or pigments exhibiting color are mixed with resins having water solubility, transparency, and printability to continuously print the existing labels so as to express specific letters or arbitrary patterns. An example of the printing method may take a conventional method such as a gravure roll. In addition, in order to improve the surface characteristics and print characteristics when forming the display layer, inorganic materials and the like may be mixed and used. The inorganic materials that may be used include colloidal silica or alumina sol.

Preferred embodiments of the present invention are as follows, but the present invention is not limited to the examples.

Example 1

A coating liquid having the composition shown in Table 1 was applied using an asterisk artwork (screen) to make a display layer on a part of the printed label surface. After coating and drying, the thickness of the display layer was 10 um.

ingredient Content (parts by weight) Gafquat 755N (ISP) 150 Poval C318-2A (Kuraray) 20 EFKA-31 (EFKA) 10 Polyethylene Glycol 600 10 water 300 Red dye One

Gafquat 755N: Vinylpyrrolidone / dimethylaminoethylmethylamine copolymer (20% aqueous solution)

    Poval C318-2A: Polyvinyl alcohol (terminal group is in cation form)

    EFKA-31: Organic modified siloxane (52% solids, solvent alkylene)

    Polyethylene Glycol 600: Ethylene Glycol with Molecular Weight 600

Example 2)

Making a display layer with an arbitrary pattern on a part of an existing label surface Using a star engraved artwork (screen) was applied a coating liquid having the composition shown in Table 2 below. After coating and drying, the thickness of the display layer was 10 um.

ingredient Content (parts by weight) Gafquat 755N (ISP) 50 Poval C318-2A (Kuraray) 20 EFKA-31 (EFKA) 100 Polyethylene Glycol 600 10 water 300 Red dye One

Gafquat 755N: Vinylpyrrolidone / dimethylaminoethylmethylamine copolymer (20% aqueous solution)

    Poval C318-2A: Polyvinyl alcohol (terminal group is in cation form)

    EFKA-31: Organic modified siloxane (52% solids, solvent alkylene)

    Polyethylene Glycol 600: Ethylene Glycol with Molecular Weight 600

Example 3

Part of the existing label surface was applied to the coating liquid having the composition shown in Table 3 using an asterisk (screen) to make the display layer in any pattern. After coating and drying, the thickness of the display layer was 10 um.

ingredient Content (parts by weight) Gafquat 755N (ISP) 50 Poval C318-2A (Kuraray) 20 Surcol 836 W (Allied Coloid) 100 EFKA-31 (EFKA) 10 Polyethylene Glycol 600 10 water 300 Red dye One

Gafquat 755N: Vinylpyrrolidone / dimethylaminoethylmethylamine copolymer (20% aqueous solution)

    Poval C318-2A: Polyvinyl alcohol (terminal group is in cation form)

    EFKA-31: Organic modified siloxane (52% solids, solvent alkylene)

    Polyethylene Glycol 600: Ethylene Glycol with Molecular Weight 600

    Surcol 836W: Carboxylated Acrylic Resin (Copolymer)

The labels obtained according to Examples 1-3 were compared in the printability and color bleeding state upon immersion and recorded in the following Table 4.

division Color bleeding Printability Example 1 Less than 10 seconds of deposition Good Example 2 Less than 10 seconds of deposition Good Example 3 Less than 10 seconds of deposition Good

The label for the electronic device having the display layer according to the present invention from the above table results can easily display the immersion state of the electronic device because the color bleeds within a short time during immersion and excellent printability.

As described in detail above, the label for the electronic device having the display layer according to the present invention can be used to easily check the inundation state of the electronic device, thereby significantly reducing the after-sales service cost, and manufacturing and labeling a conventional label. It does not deviate greatly from the process of adhering to the device has the advantage that can minimize the manufacturing cost.

Claims (3)

The label for electronic devices, characterized in that the display layer to confirm the immersion state is formed on the front or part. The label of claim 1, wherein the display layer comprises a water-soluble resin. The water-soluble resin of claim 2, wherein the water-soluble resin is 10-80% by weight of the copolymer of vinylpyrrolidone and dimethylaminoethylmethylamine, 10-80% by weight of the acrylic polymer, 5-50% by weight of polyvinyl alcohol, 5% by weight or less. Label for electronic equipment, characterized in that consisting of dyes.