KR20150123383A - Manufacturing method of the protective film of coating material which can cut the harmful blue light wavelength - Google Patents

Manufacturing method of the protective film of coating material which can cut the harmful blue light wavelength Download PDF

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KR20150123383A
KR20150123383A KR1020140049319A KR20140049319A KR20150123383A KR 20150123383 A KR20150123383 A KR 20150123383A KR 1020140049319 A KR1020140049319 A KR 1020140049319A KR 20140049319 A KR20140049319 A KR 20140049319A KR 20150123383 A KR20150123383 A KR 20150123383A
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blue light
blocking
binder
coating
test
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KR1020140049319A
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Korean (ko)
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황중국
배상대
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주식회사 웰코
황중국
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Publication of KR20150123383A publication Critical patent/KR20150123383A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C08F220/36—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C09D129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters

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  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
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  • Manufacturing & Machinery (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

The present invention relates to a method for producing a coating material of a protective film for blocking a harmful blue light wavelength. More specifically, the method can be applied to an LCD TV and other displays which help reduce eye fatigue even while watching television for a long time, and the method can be applied to a tinting film and window glass for blocking wavelengths harmful to the human body, wherein scratch caused by high hardness coating does not occur and a UV blocking color is combined therein. 82.44 wt% of a hard coating liquid (solid content), 0.41 wt% of a BLC blocking agent (TDY-57), 0.66 wt% of a UV blocking agent (UV-99-2), and 16.49 wt% of a solvent are integrally mixed to be produced into one binder. The binder is uniformly applied on a base material such as a plastic film, and through a means for irradiating and hardening UV having a light amount of 400-600 mJ/cm^2, an excellent blue light blocking rate can be exhibited even in a small amount of binder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a protective film for protecting a blue light,

The present invention relates to a method for manufacturing a coating material for a protective film for blocking harmful blue light, and more particularly, to a method for manufacturing a coating material for a protective film for blocking harmful blue light, (Solid content) and BLC blocker (TDY-57) to prevent application of sunscreen and windowpanes that block harmful harmful harmful effects to human body by bonding with UV blocking dyes, 0.41% by weight of a UV blocking agent (UV-99-2), 0.66% by weight of a UV blocking agent (UV-99-2) and 16.49% by weight of a solvent were mixed together to form a single binder. The binder was uniformly applied to a substrate such as a plastic film A blue light which is configured to show an excellent blue light blocking ratio even in a small amount of binder through a means of curing by irradiating UV with a light quantity of 400 to 600 mj / To a method for producing a coating material for a protective film which blocks harmful wavelengths.

In recent years, as the average use time of smartphone users has increased, it has been a threat to the health of the eyes.

In particular, the average daily use time of smartphone users is more than two to four hours, and the fatigue of the eyes is getting worse.

This problem is mainly due to the blue light generated by smartphones.

Here, blue light mainly occurs in a mobile device using an LED light source backlight liquid crystal display, and generally generates light having a wavelength of 380 to 495 nm.

Therefore, as the blue light continues to monitor many liquid crystal displays, the muscles of the eyes will continue to move to focus, resulting in very high fatigue of the eyes.

Especially, 380 ~ 440nm wavelength of blue light affects the eyes, and when the exposure is severe, the possibility of dry eye dryness, which causes the eyes to dry and become dry, is likely to occur earlier than the presbyopia.

In order to solve such a problem, recently, a screen for a monitor, a smart phone, and a tablet which blocks a blue light as well as a screen protection function is being released.

However, the above-mentioned products are under development, and many studies and verification are required until they are commercially available.

On the other hand, a technique related to blue light is disclosed in Patent Application No. 10-2011-7024951 entitled "Photochromic Ophthalmic System for Selectively Filtering a Specific Blue Light Wavelength" and " Patent Document 10-2007-7003705 " And device manufacturing method. "However, no specific method for blocking the blue light harmful wavelength is mentioned in this method.

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a display screen protective film which does not cause scratches through hard coating and to block the harmful blue light, And a method for manufacturing a coating material of a protective film.

In order to achieve the above object, the present invention can be applied to an LCD TV and other displays that can relieve eye fatigue even for a long period of time, and can be applied to UV-blocking dyes without scratching due to hard coating, 82.44% by weight of a hard coating liquid, 0.41% by weight of a BLC blocking agent (TDY-57) and 0.66% by weight of a UV blocking agent (UV-99-2) And 16.49% by weight of a solvent are mixed to form a single binder. The binder is uniformly applied to a substrate such as a plastic film, and then irradiated with ultraviolet rays of 400 to 600 mJ / cm 2 And more particularly, to a method for manufacturing a coating material for a protective film that blocks harmful blue light that is configured to show a superior blue light blocking ratio even in a small amount of binder.

The present invention is characterized in that the coating binder is uniformly applied to a base material such as a plastic film and the size of the particles is very small, so that the contact surface with the coating resin increases and the ability to absorb blue light increases.

And because it has sufficient blue light blocking effect even with a small amount of coating binder, it can have superior blue light interception without affecting other physical properties due to the coating binder, and lowering the cost of existing raw materials, There is an effect that can be.

1 is a photograph of a foreign substance test conducted through the present invention.
FIG. 2 is a test photograph showing an improvement of a foreign substance performed through the present invention. FIG.
FIGS. 3 and 4, and FIGS. 5, 6, and 7 are test results of the blue light blocking film of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a component comprises a component, it is understood that it may include other components, not control of the other component, unless specifically stated otherwise.

First, the present invention can be applied to an LCD TV and other displays that can alleviate eye fatigue even for a long time of viewing, and can prevent scratches due to hard coating and prevent harmful harmful rays It can be applied to a siding film and a window glass which blocks the light.

Here, the binder capable of exhibiting the blue light blocking ratio was a mixture of 82.44% by weight of a hard coating liquid (solid content), 0.41% by weight of a BLC blocking agent (TDY-57), 0.66% by weight of a UV blocking agent (UV- And 16.49% by weight of a solvent (Solvent) are mixed together to form a single binder.

The binder can be uniformly applied to a base material such as a plastic film, and then cured by irradiating UV with a light quantity of 400 to 600 mj / cm 2, whereby excellent blue light blocking ratio can be exhibited even in a small amount of binder.

Here, the preferable coating thickness of the binder may be 5 to 10 占 퐉.

Here, a simple blue light blocking rate measurement test is as follows.

Test content Test results


1. Blue light blocking dye type and input ratio (%) Test Item Final development goal Measurement result result Haze 5% TYD 57 Trancemittance 90% Surface Hardness 3H 1.8%, 1.4%, 1.2%, 0.5% + UV99-2 0.8% Adhesion 100/100 Average blocking rate 40% 2. Application of coating liquid (solvent MEK)
3. Solid content: 32%
4. Coating thickness: 4 ~ 5mic (after drying and UV irradiation)
5. IR Heat: 90 to 150 ° C, 1 min
6. UV Curing: 800 to 1000 mJ / cm 2
7. Sample size: A4 size 1. Conclusion: Test results by blue light blocking dye content
As the amount of dye increased, the blocking rate tended to increase, but the increase rate relative to the content was not large. In the case of the lowest amount of test sample, the blue light cut-off rate is over 40%, so 0.5% prescription in the effective part of the dye application is not problematic. When UV99-2 prescription is applied, it has a blue light blocking effect at low wavelength range, so it is expected to have excellent blocking effect in the case of mixed prescription.
2. Plan: TYD57, UV99-2 mixed prescription test and physical property check progress Blue Light Interruption Rate * (Interruption Rate)

Figure pat00001
By wavelength  Transmittance (%) 320nm 350 nm 370 nm 390 nm 410 nm 430 nm 465 nm 546 nm 590 nm 635 nm TYD57 1.8% 7.4
(82.6) 15.6
(74.4) 21.0
(69.0) 14.2
(75.8) 6.5
(83.5) 11.9
(78.1) 83.9 88.1 88.8 88.4 TYD57 1.4% 13.5
(76.5) 27.5
(62.5) 35.4
(54.6) 28.1
(61.9) 17.5
(72.5) 26.1
(63.9) 86.4 88.9 89.7 89.9 TYD57 1.2% 16.0
(74.0) 35.7
(54.3) 41.0
(49.0) 29.7
(60.3) 18.7
(71.3) 27.1
(62.9) 86.0 91.0 91.5 91.9 TYD57 0.5%
+ UV99-2 9.4
(80.6) 24.9
(65.1) 41.1
(48.9) 47.7
(42.3) 41.0
(49.0) 49.2
(40.8) 83.9 87.1 89.2 89.4

Here, the blue light blocking rate first measurement test is as follows.

  division Test content Test results
Primary
1. Blue light blocking dye type and input ratio (%) Test Item Final development goal Measurement result result Haze 5% 1.5% OK TYD 57 UV 99-2 Trancemittance 90% 91.9% OK Surface Hardness 3H 1H NG 0.5 0.8 Adhesion 100/100 100/100 OK Average blocking rate
(390 nm ~ 430 nm ) 40% 44% OK 2. Application of coating liquid (solvent MEK)
3. Solid content: 32%
4. Coating thickness: 4 ~ 5mic (after drying and UV irradiation)
5. IR Heat: 90 to 150 ° C, 1 min
6. UV Curing: 800 to 1000 mJ / cm 2
7. Sample size: A4 size 1. Conclusions: The blue light average blocking rate (380nm ~ 495nm) is higher than the final development target. The wavelength of 390nm ~ 430nm, which has a direct impact, is also higher than the development target. It is below the target value.

2. Plan: Purpose of improvement of hardness on the assumption that UV99-2 affects surface hardness. Test is proceeded after exclusion of UV99-2 prescription and consideration of other property changes due to prescription change. Blue Light Interruption Rate * (Interruption Rate)

Figure pat00002


By wavelength  Transmittance (%) 320nm 350 nm 370 nm 390 nm 410 nm 430 nm 465 nm 546 nm 590 nm 635 nm General HC 39.1 76.4 84.1 86.0 86.1 86.7 89.0 88.5 90.1 90.6 BLC-Test
(130820) 9.4
(80.6) 25.4
(64.6) 41.3
(48.7) 47.6
(42.4) 40.8
(49.2) 48.9
(41.1) 84.7 87.3 88.7 89.7

Here, the blue light blocking rate second measurement test is as follows.

  division Test content Test results
Secondary
1. Blue light blocking dye type and input ratio (%) Test Item Final development goal Measurement result result Haze 5% 1.8% OK TYD 57 UV 99-2 Trancemittance 90% 91.4% OK Surface Hardness 3H 1H NG 0.5 - Adhesion 100/100 100/100 OK Average blocking rate
(390 nm ~ 430 nm ) 40% 64% OK 2. Application of coating liquid (solvent MEK)
3. Solid content: 32%
4. Coating thickness: 4 ~ 5mic (after drying and UV irradiation)
5. IR Heat: 90 to 150 ° C, 1 min
6. UV Curing: 800 to 1000 mJ / cm 2
7. Sample size: A4 size 1. Conclusion: The results of the second test showed no improvement in surface hardness, but showed a very good blocking ratio at the wavelength of blue light (380 nm ~ 440 nm) which directly affected the blocking rate. However, Falling level
Yellow color is strong for film color. As a result, UV99-2 does not affect hardness and it should be added when the product is re-used.
2. Plan: Improvement of Hardness Purpose To proceed with the change with high-hardness coating liquid, Blue Light Interruption Rate * (Interruption Rate)

Figure pat00003
By wavelength  Transmittance (%) 320nm 350 nm 370 nm 390 nm 410 nm 430 nm 465 nm 546 nm 590 nm 635 nm BLC-Test
(130820) 9.4
(80.6) 25.4
(64.6) 41.3
(48.7) 47.6
(42.4) 40.8
(49.2) 48.9
(41.1) 84.7 87.3 88.7 89.7 BLC-Test
(TYD57 Only) 26.4
(63.6) 55.4
(34.6) 51.4
(38.6) 30.1
(59.9) 18.3
(71.7) 27.6
(62.4) 86.8 90.3 90.7 90.7

Here, the third measurement test of the blue light blocking rate is as follows.

 division Test content Test results
Third


1. Blue light blocking dye type and input ratio (%) Test Item Final development goal Measurement result result Haze 5% 1.6% OK TYD 57 UV 99-2 Trancemittance 90% 91.7% OK Surface Hardness 3H 3H OK 0.5 0.8 Adhesion 100/100 100/100 OK Average blocking rate
(390 nm ~ 430 nm ) 40% 45% OK 2. Application of high hardness coating liquid (solvent MEK)
3. Solid content: 32%
4. Coating thickness: 4 ~ 5mic (after drying and UV irradiation)
5. IR Heat: 90 to 150 ° C, 1 min
6. UV Curing: 800 to 1000 mJ / cm 2
7. Sample size: A4 size CONCLUSIONS: The surface hardness was improved after changing to high hardness coating solution, and it was judged that it does not have a great influence on the blue light cut-off rate due to coating solution change.
2. Plan: Plan to proceed with Field Test using the above prescription. Blue Light Interruption Rate * (Interruption Rate)

Figure pat00004
By wavelength  Transmittance (%) 320nm 350 nm 370 nm 390 nm 410 nm 430 nm 465 nm 546 nm 590 nm 635 nm BLC-Test
(130820) 9.4
(80.6) 25.4
(64.6) 41.3
(48.7) 47.6
(42.4) 40.8
(49.2) 48.9
(41.1) 84.7 87.3 88.7 89.7 BLC-Test
(Hardness) 13.8
(76.2) 32.5
(57.5) 41.1
(48.9) 41.4
(48.6) 41.6
(48.4) 49.5
(40.5) 86.6 90.7 91.1 90.9

Here, the blue light blocking rate PT test 1 is as follows.

   division TEST condition TEST results
Formulation
Coating solution: 84%
TYD57: 0.5%
UV99-2: 0.8%
Solvent: 16% (MEK)
Solids: 32%
FILM TYPE :
CD331 100mic
SH86 50mic
COATER :
COMMA
LINE SPEED :
2 0mpm
Filter # 1: 5mic
Filter # 2: 100mesh 1. Coating thickness: 4 ~ 5mic
2. Adhesive strength: 2.5 ~ 2.8g / inch
3. APPEARANCE: DYE PARTICULARLY DIFFUSED
4. Blue Light Interruption Rate: Equivalent to Target
Level
6. Feedback
Blue light blocking dye particles are not dispersed
Appear on the surface of the product, resulting in poor appearance.
In addition, due to the above problems,
Bundling has occurred
Unlike the existing Lab Test,
It is judged that there is a problem in dispersion.
Solvent prescription needs to be modified
7. Future Plan
Dispersion of dyes for surface improvement on the surface
Solve solvent prescription to increase the power
- Solvent (MEK100% -> MEK50% + toluene 50%)

Figure pat00005
Wavelength (nm) Transmittance Blocking rate 320 9.8 80.2 350 26.3 63.7 370 42.1 47.9 390 47.8 42.2 410 40.3 49.7 430 48.4 41.6 465 84.9 546 87.5 590 88.3 635 89.6 Average blocking rate
(390 nm ~ 430 nm ) 44.5

Here, the blue light blocking rate PT test 2 is as follows.

    division TEST condition TEST results Formulation
Coating solution: 84%
TYD57: 0.5%
UV99-2: 0.8%
Solvent: 16%
(50% MEK + 50% toluene)
Solids: 32%
FILM TYPE :
CD331 100mic
SH86 50mic
COATER :
COMMA
LINE SPEED :
2 0mpm
Filter # 1: 5mic
Filter # 2: 100mesh
1. Coating thickness: 4 ~ 5mic
2. Adhesive strength: 2.5 ~ 2.8g / inch
3. Appearance: Good
4. Blue Light Interruption Rate: Equivalent to Target
Level
6. Feedback
Dye dispersion is good, and workability is very high.
Easy and quality
7. Future Plan
Sample will be produced after confirming to USER

Figure pat00006
Wavelength (nm) Transmittance Blocking rate 320 9.8 80.2 350 24.4 65.6 370 41.6 48.4 390 48.1 41.9 410 41.1 48.9 430 47.9 42.1 465 84.6 546 87.5 590 88.2 635 89.8 Average blocking rate
(390 nm ~ 430 nm ) 44.3

The binder capable of exhibiting the blue light blocking ratio can be delivered through a compounding step, a coating step, a winding step, a cutting step, and a packaging step.

Here, the mixing process; (Solid content), 0.41 wt% of a BLC blocking agent (TDY-57), 0.66 wt% of a UV blocking agent (UV-99-2) and 16.49 wt% of a solvent, And stirred for 1 hour and 20 minutes.

Coating process; The primary backside is a process of laminating 50mic PET FILM and LAMI to a 100mic blue light-blocked coated film;

After applying a transparent adhesive to the second protective 50mic PET film, the primary backing film and lami lining process will proceed.

A winding step; Sum of LAMI And the finished product is transferred to the take-up tear chamber on the branch pipe.

Cutting process; The width and length of the product are cut to 3-inch PP CORE by USER's request standard.

Packaging delivery process; After packaging, after labeling, the product will be shipped.

As described above, since the coating binder is uniformly applied to a substrate such as a plastic film and the size of the particles is very small, the contact surface of the coating resin with the coating resin increases and the ability to absorb blue light increases .

And because it has sufficient blue light blocking effect even with a small amount of coating binder, it can have superior blue light interception without affecting other physical properties due to the coating binder, and lowering the cost of existing raw materials, There is an effect that can be.

As a result, the present invention is characterized in that 82.44% by weight of a hard coating liquid, 0.41% by weight of a BLC blocking agent (TDY-57), 0.66% by weight of a UV blocking agent (UV-99-2) The binder is uniformly applied to a base material such as a plastic film and then cured by irradiating UV with a light quantity of 400 to 600 mj / cm < 2 > to obtain an excellent blue light blocking ratio Lt; / RTI >

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may be implemented in a combined manner.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (2)

82.44% by weight of a hard coating solution (solid content), 0.41% by weight of a BLC blocking agent (TDY-57), 0.66% by weight of a UV blocking agent (UV-99-2) and 16.49% by weight of a solvent And then the binder is uniformly applied to a base material such as a plastic film, and then the blue light blocking ratio is exhibited through a means for curing by irradiating UV with a light quantity of 400 to 600 mj / cm < 2 > A method for manufacturing a coating material for a protective film which blocks harmful blue light. The method according to claim 1,
Wherein the binder has a thickness of 5 to 10 mu m. The method of claim 1, wherein the thickness of the binder is 5 to 10 mu m.
KR1020140049319A 2014-04-24 2014-04-24 Manufacturing method of the protective film of coating material which can cut the harmful blue light wavelength KR20150123383A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200483686Y1 (en) * 2015-12-21 2017-06-14 (주)태광엠텍 Electronic device protecting film having function of blocking out blue light
WO2018117330A1 (en) 2016-06-30 2018-06-28 주식회사 케이알이엠에스 Automobile headlight for improving visibility during driving
WO2019107995A1 (en) * 2017-11-30 2019-06-06 유흥상 Protective glass and protective film for smartphone with blue light blocking coating layer formed thereon and forming method therefor
KR102021303B1 (en) * 2019-04-03 2019-09-16 주식회사 에스폴리텍 Blue light blocking film
KR20200051622A (en) * 2017-08-09 2020-05-13 이유테크 뉴 머터리얼즈 테크놀로지 (쑤저우) 컴퍼니 리미티드 Blue light blocking system comprising pyrazoline-based and / or cinnamate-based compounds
KR102198877B1 (en) * 2019-07-16 2021-01-05 정소영 Blue light cutting filter
CN114702896A (en) * 2022-04-28 2022-07-05 苏州奥美材料科技有限公司 Blue-light-resistant coating composition, preparation method thereof and blue-light-resistant material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200483686Y1 (en) * 2015-12-21 2017-06-14 (주)태광엠텍 Electronic device protecting film having function of blocking out blue light
WO2018117330A1 (en) 2016-06-30 2018-06-28 주식회사 케이알이엠에스 Automobile headlight for improving visibility during driving
KR20200051622A (en) * 2017-08-09 2020-05-13 이유테크 뉴 머터리얼즈 테크놀로지 (쑤저우) 컴퍼니 리미티드 Blue light blocking system comprising pyrazoline-based and / or cinnamate-based compounds
WO2019107995A1 (en) * 2017-11-30 2019-06-06 유흥상 Protective glass and protective film for smartphone with blue light blocking coating layer formed thereon and forming method therefor
KR102021303B1 (en) * 2019-04-03 2019-09-16 주식회사 에스폴리텍 Blue light blocking film
KR102198877B1 (en) * 2019-07-16 2021-01-05 정소영 Blue light cutting filter
CN114702896A (en) * 2022-04-28 2022-07-05 苏州奥美材料科技有限公司 Blue-light-resistant coating composition, preparation method thereof and blue-light-resistant material

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