KR100515943B1 - Manufacturing process of an anti-UV-ray film and sheet by irradiation of the keV-energy ion beam - Google Patents

Abstract

The present invention relates to a method of manufacturing a UV / blocking film / plate material by keV-type low energy ion implantation, the purpose of which is to inject keV-level low-energy ions into the surface of PET, PC film and plate to increase the harmful UV absorption rate, It reduces scratches by reducing the roughness of the surface of the plate and the plate, maintains the transparency of the film, prevents the sticking of dust by providing the antistatic function, and increases the homogeneity of the surface, which is harmless to the human body. It is to provide a method for producing a multifunctional film and plate material having economical efficiency.

The configuration of the present invention places the PET or PC film on the support structure in the vacuum chamber and then slowly rotates the support structure. An ion source is installed between the supporting structures. The keV-class low energy ions extracted from the installed ion source are injected into the surface of the film and the plate in the irradiation area, and the ion beam injected into the surface of the film and the plate is characterized by a method of modifying the surface of the film and the plate to have an ultraviolet absorption effect. .

Description

Manufacturing process of an anti-UV-ray film and sheet by irradiation of the keV-energy ion beam}

The present invention relates to a method for manufacturing a UV blocking film / plate material by keV-type low energy ion implantation. Specifically, PET (polyethylene terephthalate) and PC (polycarbonate) film are injected with keV-level low energy to absorb UV light. The present invention relates to a method for producing a functional film / plate material having excellent effects and long-lasting absorption, transparent, excellent scratch-proofing effect, easy to manufacture, and antistatic.

Currently used UV protection film and plate has been made by three methods.

First, color is applied to low density polyethylene, polycarbonate film and plate, which is used for UV protection, safety protection and product display protection. In this case, the color coating of the film is non-uniform, giving visible anxiety. In addition, when packaging a colored product or food, there is a disadvantage that a consumer cannot see the internal state of the product.

Second, a vacuum deposition coating of metal on the polyester film and the plate can be obtained UV protection effect, but is being regulated by the building law because of strong reflectivity.

Third, the inorganic film or the organic ultraviolet absorber is pressed onto the polyester film and then coated to prevent scratching. In this case, the ultraviolet absorbency can be more easily maintained, but the manufacturing process of several layers is complicated, and the manufacturing cost is high, and the economic efficiency is low. Also, when the ultraviolet absorbent is compressed, uneven phenomenon occurs, eyes are tired, and there is a problem of protecting the skin. There is a problem that occurs.

1 is a general laminated structure of a film for construction and vehicle having a conventional ultraviolet absorbing effect, 1 is a protective liner, 2 is a pressure-sensitive adhesive layer of UV blocking, 3 is a UV blocking polyester, 4 is a thermal barrier metal The target deposition layer, 5, is SR coated polyester.

An object of the present invention for solving the above problems is to inject keV-grade low energy ions into the surface of PET, PC film and plate to increase the harmful UV absorption rate, reduce the roughness of the film and plate surface to reduce scratches, Maintaining transparency of the film as it is, providing antistatic function, reducing dust sticking phenomenon, and increasing the homogeneity of the surface, which is harmless to human body and at the same time economical multifunctional film / plate material manufacturing method To provide.

In the present invention to achieve the object as described above and to perform the problem for removing the conventional defects, in the method for producing a film having a UV blocking function,

The thin PET or PC film 6 is spread over the automated movable support structure 8 in the vacuum chamber 7 and then moved to the keV class low energy ion beam 11 generated from the ion source 10 installed at the upper and lower ends. The upper and lower surfaces of the film 6 under irradiation are irradiated to modify the surface to have an ultraviolet absorbing effect to block ultraviolet rays. The vacuum degree in the vacuum chamber is 1 × 10 ⁻⁵ torr or less, and the intensity of the irradiated ion beam is 1 It is -100 keV, and the dose of the irradiated ion beam is 1 * 10 <^12> -10 <^18> ions / cm <^2> , The irradiated ion beam is characterized by the method of manufacturing on the conditions using selected one of various gas ions, such as argon.

The present invention provides a method of manufacturing a plate having a UV blocking function,

The plate 13 moving the keV class low energy ion beam 18 generated from the ion source 17 installed after the PET or PC plate 13 is placed on the automated movable support structure plate 16 in the vacuum chamber 14. Irradiate the surface to modify the surface to have an ultraviolet absorbing effect to block ultraviolet rays,

And the degree of vacuum in the vacuum chamber is less than 1 × 10 ^-5 torr, the intensity of the ion beam to be irradiated is 1 ~ 100keV, and the dose of the irradiated ion beam is ^{1 × 10 12 ~ 10 18 ions} / cm 2, the ion beam is irradiated is Ar Characterized in that the manufacturing method under the conditions using a selected one of a variety of gas ions, such as.

Hereinafter, the configuration and the operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, it is possible to shorten the manufacturing process by using a single film without using a film for construction and vehicle having a conventionally developed ultraviolet absorbing effect as shown in FIG.

Figure 2 shows an embodiment of the schematic configuration of the ion implanter required for the present invention. Looking at the process and configuration, the PET or PC film (6) rolls roller support structure (8) in the vacuum chamber (7) After attaching to both sides, the roller support structure is slowly rotated.

At least one ion source 10 is provided at each of the upper end and the lower end between both roll supporting structures.

The installed ion source is a large area ion source having uniform ion beam distribution characteristics.

Therefore, nonuniformity with respect to the flatness of the beam irradiation surface does not occur, and ions can be implanted into the upper and lower surfaces of the film simultaneously from the ion source provided at the upper and lower ends.

The keV energy ion beam 11 drawn from the installed ion source is injected to the surface of PET or PC film located in the irradiation area 12.

When the ion beam is injected on both sides, there is an advantage that can have a variety of functions.

For example, one side of the film may have an ultraviolet absorption function and the other side may have an antistatic function.

In addition, when both surfaces have an ultraviolet absorption function, there is an advantage that can shorten the manufacturing time.

When the thickness is thick, such as a hat for a motorcycle driver, a device capable of injecting keV-grade energy ion beams is used as shown in FIG. 3.

Looking at the process and configuration, the PET or PC board 13 is placed on the support plate 16 between the support structures 15 in the vacuum chamber 14, and then the support structure is slowly rotated.

At least one ion source 17 is provided between both supporting structures.

The installed ion source is a large area ion source having uniform ion beam distribution characteristics.

A keV class energy ion beam 18 extracted from the installed ion source is injected into the plate surface 13 in the irradiation area 19.

In FIGS. 2 and 3, considerations for ion beam irradiation include energy and current of the ion beam, and rotational speed of the roll supporting structure.

That is, these values are determined experimentally according to the properties and materials of the film and plate to be applied.

2 and 3, the degree of vacuum in the vacuum chamber is kept below 10 ^-5 Torr.

In Figures 2 and 3, the ions implanted into the PET or PC film and plate surface alter the chemical structure of the film and plate surface, resulting in increased harmful UV absorption, reduced surface roughness, and retained transparency. By using the area ion source, it has the function of increasing the homogeneity of the surface.

The type of ion beam used in the present invention may be an ion gas of hydrogen, helium, nitrogen, argon, krypton, xenon or the like.

The multifunctional film for absorbing ultraviolet rays and the sheet made by the ion beam irradiation of the present invention have ultraviolet rays blocking and antistatic functions in addition to the same performance and appearance as before the ion beam injection.

The film and plate produced from the present invention to produce sunscreen, glass, window glass, various architectural glass coatings, agriculture, food and beverage packaging films and sunglasses, sun caps, plate.

Hereinafter is a preferred embodiment of the present invention.

(Example 1)

After the injection of 50 keV ion beam intensity and 7 × 10 ¹⁶ ions / cm ² argon ion beam into the PET film surface at a vacuum degree of 1 × 10 ⁻⁵ torr in the vacuum chamber, it was demonstrated that the transmittance was less than 1% in the ultraviolet region.

Figure 4 is a graph of ultraviolet absorption rate measurement for the PET film of the present invention.

(Example 2)

After the injection of 50keV, 7 × 10 ¹⁶ ions / cm ² argon ion beam into the surface of the PC film at a vacuum degree of 1 × 10 ^-5 torr in the vacuum chamber, it is demonstrated that the transmittance is less than 4% in the ultraviolet region.

Figure 5 is a graph of ultraviolet absorption measurement for the PC film of the present invention.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

The present invention as described above is excellent in the UV absorption effect and absorption persistence, transparent, excellent scratch-resistant effect by injecting ions with keV grade low energy into PET (polyethylene terephthalate), PC (polycarbonate) film and plate, It is easy to manufacture, has the advantage of being able to provide a multi-functional film and plate material that has an antistatic function and can easily provide a thickness suitable for coating and packaging applications.

That is, a car (two-wheel, three-wheel, four-wheel) that requires UV protection with a multi-functional film and plate having a UV-blocking function in addition to the same performance and appearance as conventional products by not changing the shape or material of the conventional film and plate. It is an invention that is useful for industrial and household goods production, such as glass, display windows, various architectural glass, agricultural, food and beverage packaging films, sun caps, sunglasses plates, etc., and is highly expected for industrial use.

1 is a conventional UV blocking high function film lamination,

Figure 2 is an embodiment of the schematic configuration of the ion beam irradiation device for a thin film of the present invention,

Figure 3 is an embodiment of a schematic ion beam irradiation apparatus configuration for a plate of the present invention,

Figure 4 is an embodiment of the ultraviolet absorbance measurement for the PET film of the present invention,

5 is an exemplary view of measuring ultraviolet absorbance of the PC film of the present invention.

<Description of the symbols for the main parts of the drawings>

(1): protective liner (2): adhesive layer of UV protection

(3): UV blocking polyester (4): Thermal barrier metal target deposition layer

(5): SR coated polyester (6): PET or PC film

(7): vacuum chamber (8): roller support structure

(9): roller 10: ion source

(11): keV class energy ion beam (12): irradiation area

(13): PET or PC board material (14): vacuum chamber

(15): support structure (16): support plate

(17): ion source (18): keV energy ion beam

(19): irradiation area (20): roller

Claims (2)

In the method for producing a film having a UV blocking function, The thin PET or PC film 6 is spread over the automated movable support structure 8 in the vacuum chamber 7 and then moved to the keV class low energy ion beam 11 generated from the ion source 10 installed at the upper and lower ends. Irradiate and inject the upper and lower surfaces of the film (6) in use to modify the surface to have an ultraviolet absorbing effect to block ultraviolet rays, The intensity of the ion beam irradiated for the ion implantation is 1 to 100 keV, the dose of the irradiated ion beam is 1 × 10 ¹² ~ 10 ¹⁸ ions / cm ^{2 The} keV class low, characterized in that the manufacturing method under the conditions of using Method for producing a film having a UV blocking function by energy ion implantation. In the manufacturing method of the plate member having a UV blocking function, The plate 13 moving the keV class low energy ion beam 18 generated from the ion source 17 installed after the PET or PC plate 13 is placed on the automated movable support structure plate 16 in the vacuum chamber 14. Irradiate the surface and inject it to modify the surface to have ultraviolet absorption effect to block ultraviolet rays, The intensity of the ion beam irradiated for the ion implantation is 1 ~ 100keV, the dose of the ion beam irradiated is keV class low energy, characterized in that the manufacturing method under the conditions of using a 1 × 10 ¹² ~ 10 ¹⁸ ions / cm ² Plate manufacturing method having a UV blocking function by ion implantation.