KR20050104244A - A multifunction paints for cases of electronic apparatus and a method thereof - Google Patents

Abstract

  As a coating material for painting and construction iron on the case of plastic electronic devices of the present invention, by adding special additives to acrylic resin, epoxy resin, or polyurethane resin, anion generation, odor removal, antibacterial or sterilization It is to provide a functional paint and a method of manufacturing the same.

  The present invention is to provide a paint having a special effect by coating a building material on a case of electronic devices, such as a plastic case, such as a TV case, a mobile phone case, or a metal case, and a manufacturing method thereof.

  The functional paint of the present invention includes 20 to 40% of a binder made of acrylic resin, epoxy resin or polyurethane resin, 5 to 10% of pigment, 2 to 20% of tourmaline powder pulverized at 600 hour, and leveling agent, anti-settling agent and antifoaming agent. It is a functional paint prepared by mixing 2 ~ 2% of other additives and 40 ~ 60% of solvents (ketone, aromatic, cellulsolve, acetate).

Description

A multifunction paints for cases of electronic apparatus and a method

  Paint is an object surface that is used for protection and coloring, by spreading fluid on the surface of an object to form a thin layer that makes it hard.

  The object is slightly eroded by external influences, large and small. In addition, the material value alone is often low on the surface alone. Therefore, it protects it from external influences, and ① protects objects, protects against corrosion, oil, chemicals, and moisture. 2. beautification, smoothing, label, gloss, and sterilization. Used to prevent reflection and biological attachment.

  The main components of the paint are broadly divided into a colorant (vehicle), which is a coating film forming component, and a pigment component. The colorant corresponds to a transparent paint, and is a component that disperse a pigment or the like to give fluidity to the paint, and the pigment is a component to impart color to the coating film.

  Paints are called by various names by the classification method, and can be broadly classified into water-based paints and oil-based paints. Water-based paints use water instead of organic solvents, and are economical, easy to handle, and safe. It is a paint used for wall painting, stone, and ground paint of buildings, such as emulsion paint and water-soluble baking resin paint. Oil paints are mainly paints using a colorant made of natural oils, and lacquer, cashew paint, oil paint, oil enamel and the like.

  In recent years, synthetic resin paints are being rapidly developed, and their use is expanding. The main ones are: ① alkyd resin paint ② amino alkyd resin paint ③ acrylic resin paint ④ phenolic resin paint ⑤ epoxy resin paint ⑥ unsaturated polyester resin paint ⑦ polyurethane resin paint.

  In recent years, as well as conventional paints are not limited to the protection and coloring of the surface of the object, so-called "functional paints" that have a special action has been developed a lot, radio wave absorption paints, conductive paints and the like have been developed and used.

  In addition to the general functions of aesthetics and protection, functional paints can be used to maximize the resistance to physical and chemical external stimuli (heat resistance, chemical resistance), or to convert the input into high-quality quality and output the high-function of the conversion function (voltage, electric heating system, etc.). It is a paint containing high performance and a high function which includes not only surface modification but a 3rd function as well as surface modification by converting the property related to the surface of a coating film into a coating film by coating as well as the general function of a coating material as a target coating material.

  Patent Publication No. 2002-0063535, published on August 3, 2002, discloses a noble metal catalyst body based on ceramic alumina and charcoal, and on the oxidation of hydrogen produced by electrolysis of ambient water or water at room temperature. There is disclosed a method for producing a functional ceramic powder which greatly improves characteristics such as odor removal, water evaporation, far infrared radiation, and anion generation by mixing tourmaline that emits and emits a large amount of far infrared rays and anions.

  In addition, Korean Patent Registration No. 10-0358326 filed on October 25, 2002, contains a mixture of 50 to 70% by weight of charcoal and 25 to 50% by weight of adhesive on at least one surface of a conventional super medium. It is applied to the wall of the building constructed with cement and applied to the super medium produced by drying with hot air at a temperature of 50 ~ 70 ℃ and spreading it through charcoal with far infrared radiation function and negative ion emission function, humidity control and electromagnetic wave absorption function. Not only can the odor generated from the cement be easily removed, the removal efficiency of the harmful components is excellent, and the adhesion of the paper medium can be easily performed.

The present invention relates to a functional paint, and has an object to provide a functional paint having far-infrared radiation function and anion emission function, controlling humidity and having an electromagnetic wave absorption function. Functional paints of the present invention configured for this are 30 to 60% by weight of fine powder charcoal, liquid binder <(matrix polymer>) as chloroprene, polyvinyl acetate, polyacrylic acid ester, polyvinyl alcohol, carboxymethyl cellulose and It is composed of a mixture of 30 to 70% by weight of any one of the emulsion-type resin and 10 to 40% by weight of pigments expressing color and scent. A functional paint that controls humidity and removes odor generated from cement due to charcoal having an electromagnetic wave absorbing function is disclosed.

  An object of the present invention is to improve a functional paint and a method for producing the same, which produce anion, far-infrared radiation, odor removal, antibacterial or sterilization using a special acrylic resin or urethane resin special additive as a paint to be applied to plastics.

  An object of the present invention is to provide a paint and a method of manufacturing the same, which have a special effect by painting on a case of electronic devices, for example, a plastic case such as a TV case, a mobile phone case.

  In addition, another object of the present invention is to use a special epoxy resin, acrylic urethane resin, alkyd resin and the like additives for use in construction iron or iron products, functional anion, anion generation, far infrared generation, odor removal, antibacterial or sterilizing And to provide a method of manufacturing the same.

  The present invention is a method for producing a paint having a variety of functions by mixing and grinding a tourmaline gemstone 600 mesh sacrificing together with various pigment additives such as acrylic resin, epoxy resin, urethane resin and the like.

The paint of the present invention is 20 to 40% of a binder made of acrylic resin, epoxy resin or polyurethane resin; With pigment 5-10%; 2% to 20% of 600 mesh sagittal crushed tourmaline powder; 1 to 2% of other additives such as leveling agents, antisettling agents and antifoaming agents; It is a coating composition which mixed the ketone system, aromatic system, cellosolve system, and acetate solvent 40-60%.

  Tourmaline is a silicate mineral containing boron, aluminum, etc., as described in published Patent Publication No. 2002-0063535, which is a vacancy known as tourmaline because it generates electricity by itself in columnar crystals belonging to hexagonal system. .

  In the present invention, the tourmaline is finely pulverized to 600 mesh or more and mixed 5 to 8% to obtain various functional paints for painting plastic or steel cases of electronic devices.

  The ratios used below are all weight ratios and work in a normal temperature environment.

  Common to each embodiment, first, the tourmaline is pulverized well to 600 mesh or more to prepare a tourmaline powder to proceed with the manufacturing process.

  Example 1) Acrylic lacquer coating for plastic case coating

1-1> Mix acrylic resin (20-30%) and dispersant (0.05-0.08%).

1-2> After mixing in 1-1 above, the pigment (5-10%) is mixed and mixed evenly to disperse, then tourmaline powder (5-8%) is mixed and uniformly dispersed.

1-3> Mix in 1-2 above and mix by adding aromatic solvent (10-15%) and ketone solvent (10-15%).

1-4> Dissolve vinyl resin (4-8%) nitrocellulose (1-2%) by mixing aromatic solvent (10-15%) and ketone solvent (10-15%) in a separate container. .

1-5> Mix the raw materials prepared in the above 1-4 with the raw materials prepared in the above 1-3 and mix uniformly.

1-6> After adding the other additives (0.07-0.15%) to the raw material prepared in 1-5 above to make it uniform, adjust the viscosity as other solvent (5-8%). As other additives, an appropriate amount of a leveling agent, an antifoaming agent or an antisettling agent is added as necessary, and other solvents may be ketone solvents.

  Acrylic lacquer (silver color) paint made by the above method is acrylic resin 20-30%, dispersant 0.05-0.08%, pigment 5-10% tourmaline powder 5-8%, aromatic solvent 20-30%, ketone solvent 25 ~ 30%, vinyl resin 4 ~ 8%, nitro cellulose 1 ~ 2%, other additives 0.07 ~ 0.15% comprising a coating composition for electronics case coating. As other additives, an appropriate amount of leveling agent, antifoaming agent or antisettling agent is added as necessary.

  Example 2 Epoxy Paint for Metallic Building Materials

2-1> Epoxy resin (9 ~ 12%) is mixed uniformly by dispersing agent (0.1 ~ 0.3%) and aromatic solvent (10 ~ 15%).

2-2> Pigment (15-25%) is mixed and uniformly dispersed in the raw material prepared in the above 2-1.

2-3> Tourmaline powder (5 ~ 8%) is added to the raw material prepared in 2-2 above to make it uniform.

2-4> After mixing by mixing other additives (1.5 ~ 2.8%) to the raw material prepared in the above 2-3

      Make it uniform. Other additives are appropriately added leveling agents, antifoaming agents or antisettling agents as necessary.

2-5> Packing after adjusting the viscosity by mixing aromatic solvent (20 ~ 25%), alcohol solvent (10 ~ 13%), cellulose solvent (3 ~ 5%) to the raw material prepared in the above 2-4 do.

2-6> In a separate container, mix polyamide ((Epoxy Curing Agent) 5-10%) with aromatic solvent (10-15%) and cellulose solvent (7-10%).

2-7> Package the product prepared in 2-5 above and the product prepared in 2-6 above separately and mix them when used.

  The paint for electronics case coating produced in this way is epoxy resin (9-12%), dispersant (0.1-0.3%), aromatic solvent (10-15%), pigment (15-25%), tourmaline powder (5 to 8%), sedimentation inhibitors, defoamers and / or leveling agents (1.5 to 2.8%), aromatic solvents (20 to 25%) and alcohol solvents (10 to 13%), cellulose solvents (3 to 5 %) Second intermediate in which aromatic intermediate (10-15%) and cellulose solvent (7-10%) are mixed with polyamide ((epoxy curing agent) 5-10%) and mixed first intermediate product. Including the product, the first intermediate product and the second intermediate product (3 to 5): 1 (weight ratio) by mixing immediately before the coating work is a functional paint.

  Example 3) Urethane paint for painting electronic device case

3-1> Aromatic solvents (4 to 5%) and acetate solvents (10 to 18%) are mixed with polyester polyol resin (18 to 25%) and acrylic polyon (10 to 17%).

3-2> After dispersing agent (0.08 ~ 0.12%) is added to the raw material prepared in 3-1 above and mixed, the pigment (4.5 ~ 6.0%) is added and uniformly dispersed.

3-3> Tourmaline powder (5 ~ 8%) is added to the raw material prepared in 3-2 above to make it uniform.

3-4> After adding the other additives (1.5 ~ 2.5%) to the raw material prepared in the above 3-3 to make uniform, and then add ketone solvent (8 ~ 12%), acetate solvent (5 ~ 8%) Pack after adjusting viscosity. Other additives are appropriately added leveling agents, antifoaming agents or antisettling agents as necessary.

3-5> In a separate container, mix isocyanate (also known as urethane curing agent) 8-10%, aromatic solvent (3-7%) and acetate solvent (10-15%), uniformly and pack.

3-6> The product manufactured in the above 3-4 and the product prepared in the above 3-5 are separately packed and mixed when used.

  Paints prepared in this way are polyester polyol resins (18 to 25%), acrylic polyols (10 to 17%), aromatic solvents (4 to 5%), acetate solvents (10 to 18%), dispersants (0.08 ~ 0.12%), pigment (4.5 `6.0%), tourmaline powder (5-8%), other additives (1.5-2.5%), ketone solvent (8-12%), acetate solvent (5-10%) A first intermediate product including a second intermediate product including an isocyanate (8 to 10%), an aromatic solvent (3 to 7%) and an acetate solvent (10 to 15%) By mixing the first intermediate product and the second intermediate product (5 to 10): 1 (weight ratio), it becomes a functional paint for painting the electronics case.

The composition ratio of the paint of the present invention can be slightly added or subtracted from the composition ratio described above.

Test results of the epoxy-based paint samples prepared by the above method is shown in Table 1, Table 2, Table 3, Table 4.

As can be seen from Table 1 showing the test data, it was found that 1200 anions were generated per 1cc.

Table 1 Anion Test Results

Sample Name Item Anion (ION / cc) Manufacture Paint 1200

Remark) 1.Test piece: 40 * 40 * 297 (mm)

      2. It was tested at the temperature of 23 ℃ and 41% humidity of anion water 73 / cc using charged particle device. The anion released from the object was measured and expressed as the number of ions per unit volume.

The far-infrared emission was tested on the same sample, which shows 90.4% of the black body radiation as shown in Table 2.

<Table 2> Far Infrared Test Results

Emissivity (5 ~ 20㎛) Radiation energy (w / ㎡) 0.904 3.64 * 10

Remarks) 1. Measurement result compared to BLACK BODY using FT-IR Spectrometer at 40 ℃.

Deodorization tests were performed on the same samples, and as shown in Table 3, the ammonia gas deodorization rate was found to be 32.0% after 30 minutes to 35.3% after 120 minutes.

<Table 3> Deodorization Test Results

Test item (test gas) Elapsed time (minutes) BLANK concentration (ppm) Sample concentration (ppm) Deodorization rate (%) Deodorization test (NH ??) 30 194 132 32.0 60 152 101 33.6 90 131 85 35.1 120 116 75 35.3

Remark) 1. Blank: Measured without sample.

      2.Test piece: 40 * 40 * 10 (mm)

As a result of the antimicrobial test for E. coli on the same sample, it can be seen that the E. coli concentration is decreasing as shown in Table 4, and that the concentration was 1: 1 before the test compared to the case without paint. : 0.884, showing a difference of 4.35 times. In other words, when the paint of the present invention is used, the bacteria decrease by 11.6%, but when the paint is not used, the bacteria increase to 385%.

In addition, the antimicrobial test for Pseudomonas aeruginosa under the same conditions shows that the concentration of Pseudomonas aeruginosa is decreasing, as shown in Table 4, and that the concentration of 1: 1 before the test was 3.97 after the test compared to the case without paint. : 0.85, showing 4.67 times the difference. In other words, when the paint of the present invention is used, the germs are reduced by 15%, but when the paint is not used, the germs are increased to 397%.

<Table 4> Antibacterial Test

Test Items Sample classification Initial concentration (CFU / 40P) Concentration after 24 hours (CFU / 40P) Bacterial Concentration Ratio Antibacterial test by E. coli BLANK 421 1621 +3.85 Manufacture Paint 421 372 -0.884 Antibacterial test by Pseudomonas aeruginosa BLANK 406 1610 +3.97 Manufacture Paint 406 345 -0.85

Remark) 1. Blank: Measured without sample.

      2.CFU: Colony Forming Unit

      3.401P: 0.04ML

      4. The number of bacteria on the medium is calculated by multiplying the dilution multiples.

      5. Number of bacteria used

         Escherichia coli ATcc 25922

         Pseudomonas aeruginosa ATcc 15442

This functional paint is suitable for being applied to a plastic case, but of course it can also be coated on steel.

  As described above, the functional paint of the present invention has been proved to have a good positive effect such as anion generation, large-scale radiation of far infrared rays, deodorizing action, antibacterial action and the like.

Electronic devices are objects frequently touched by human hands. The use of this functional paint is hygienic because it can prevent bacterial growth. In addition, since electronic devices are mostly close to the human body such as a recorder, a mobile phone, and an mp3 player, functions such as negative ion generation, far infrared radiation, and deodorization are very good for health.

Claims (7)

20 to 40% of a binder made of acrylic resin, epoxy resin or polyurethane resin; With pigment 5-10%; 2% to 20% of 600 mesh sagittal crushed tourmaline powder; 1 to 2% of other additives such as leveling agents, antisettling agents and antifoaming agents; Functional coating composition for coating on plastic or iron case of the electronic device manufactured by mixing ketone-based, aromatic-based, cell-solve-based, acetate-based solvent 40 to 60%.   Epoxy resin (20 to 30%), dispersant (0.05 to 0.08%), pigment (5 to 10%), tourmaline powder (5 to 8%) aromatic solvent (20 to 30%), ketone solvent (25 to 38 %), Vinyl resin (4-8%), nitrocellulose (1-2%), and other additives (0.07-0.15%) containing a functional coating composition for coating on the plastic case of the electronic device.   Epoxy resin (9 to 12%), dispersant (0.1 to 0.3%), aromatic solvent (10 to 15%), pigment (15 to 25%), tourmaline powder (5 to 8%), sedimentation inhibitor, antifoaming agent and or A first intermediate product containing a mixture of a leveling agent (1.5 to 2.8%), an aromatic solvent (20 to 25%) and an alcohol solvent (10 to 13%),  Polyamide ((Epoxy Curing Agent) 5-10%) comprising a second intermediate product mixed with an aromatic solvent (10-15%) and a cellulose solvent (7-10%), A functional coating composition for a metal building material, characterized in that the first intermediate product and the second intermediate product (3 to 5): 1 are mixed and used immediately before the painting work. Functional paints for coating plastic or iron cases of electronic devices, such as polyester polyol resins (18 to 25%), acrylic polyols (10 to 17%), aromatic solvents (4 to 5%), acetate solvents ( 10 to 18%), dispersant (0.08 to 0.12%), pigment (4.5 to 6.0%), tourmaline powder (5 to 8%), other additives (1.5 to 2.5%), ketone solvent (8 to 12%), First intermediate product containing acetate solvent (5 to 10%) and second intermediate containing isocyanate (8 to 10%), aromatic solvent (3 to 7%) and acetate solvent (10 to 15%) Functional paint for electronic device case coating comprising a product, and mixing the first intermediate product and the second intermediate product (5 to 10): 1 immediately before the painting work.   In the functional paint manufacturing method for painting the electronic device plastic case, (A) Mixed mixing acrylic resin (20-30%) and dispersant (0.05-0.08%), mixing and mixing pigment (5-10%) therein, and dispersing it uniformly, then tourmaline powder (5-8%) To mix and disperse uniformly, mix by adding aromatic solvent (10-15%) and ketone solvent (10-15%), (B) Dissolve vinyl resin (4-8%) and nitrocellulose (1-2%) by mixing aromatic solvent (10-15%) and ketone solvent (10-15%) in a separate container. , Plastics for electronic devices, characterized in that the raw materials prepared in (A) are mixed and mixed uniformly, and uniformly added by adding other additives (0.07 ~ 0.15%), and then adjusting the viscosity as other solvents (5 ~ 8%) Manufacturing method of functional paint for case painting   In the manufacturing method of the functional paint for painting the building materials of metal (A) Uniformly mix the dispersant (0.1 to 0.3%) and the aromatic solvent (10 to 15%) with the epoxy resin (9 to 12%), and uniformly disperse by mixing the pigment (15 to 25%). , Add tourmaline powder (5 ~ 8%) to make uniform, mix and mix with other additives (1.5 ~ 2.8%), make homogeneous, aromatic solvent (20 ~ 25%) and alcohol solvent (10 ~ 13%), the cellulose solvent (3 ~ 5%) is mixed and adjusted to the viscosity and then packaged as the first intermediate product, (B) After mixing the polyamide ((Epoxy Curing Agent) 5-10%) with an aromatic solvent (10-15%) and a cellulose solvent (7-10%), packaging it as a second intermediate product, When using, the first intermediate product and the second intermediate product (3 ~ 5): a method of producing a functional paint for painting the building material of a metal material, characterized in that the mixture to be used.   In the functional paint manufacturing method for painting electronic device case (A) Aromatic solvents (4 to 5%) and acetate solvents (10 to 18%) are mixed with polyester polyol resins (148 to 25%) and acryl polyols (10 to 17%), and dispersants (0.08 to 0.12%), mix and add pigment (4.5-6.0%) to make it uniformly dispersed, add tourmaline powder (5-8%) to make it uniform, additives such as leveling agent, anti-settling agent, antifoaming agent (1.5 ~ 2.0%) was added to make it uniform and then ketone solvent (8-12%) and acetate solvent (5-10%) were added to adjust the viscosity and then packaged as the first intermediate product. (B) Uniformly mix isocyanate (8 to 10%), aromatic solvent (3 to 7%) and acetate solvent (10 to 15%), package it with a second intermediate product, and (5 to 10): 1 A method of manufacturing a functional paint for painting an electronic device case, wherein the first and second intermediate products are mixed and used.