KR20130041503A - Manufacturing method of ultraviolet embossing coating extrudate continuously and the device - Google Patents

Abstract

PURPOSE: A method for continuously emboss-coating an extruded product and a device thereof are provided to obtain scratch resistance, solvent resistance, and light resistance while having an embossing surface, and to prevent damages when folding or bending. CONSTITUTION: A method for continuously emboss-coating an extruded product comprises: a step of coating a release paper film(120) or an extruded product(100) with a UV(Ultra Violet) resin(10); a step of placing the release paper film and the extruded product together; a step of hardening the release paper film with a first UV irradiation device(60a); and a step of deforming the release paper film and hardening with a second UV irradiation device(60b). [Reference numerals] (AA) Cooling water;

Description

MANUFACTURING METHOD OF ULTRAVIOLET EMBOSSING COATING EXTRUDATE CONTINUOUSLY AND THE DEVICE

The present invention relates to a method and apparatus for continuously embossing coating an extrudate with a UV curable resin, and more particularly, a film obtained by coating a UV curable resin on a surface of a plastic extrudate or applying a PE Tidy to a PET film that is a release paper. UV-curable resin coating on film embossed film or PET film, linear low density PE film on dry laminated film, embossed film or PET film embossed with release UV curable resin, and laminated with plastic extrudates. After curing, it is cured by passing through a UV curing machine, and then the release paper is separated from the extrudate, and then completely cured by passing through a secondary UV curing machine so that the pattern of the embossed film is reproduced as a UV curable resin of a thin film on the extrudate. A method of coating.

The conventional plastic sheet material cannot be continuously printed on a line, so the plastic sheet material that has been prescribed has to be worked on a separate printing process line, which requires a lot of work time, a high defective rate, and due to the double line work. As a result, productivity and manufacturing costs have risen.

In addition, there is a conventional method of printing on a plate material by a method of thermal transfer, but the plate-like plastic has a disadvantage that the manufacturing cost is expensive because the transfer paper which is weak in pressing force and heat is expensive. In addition, the wear resistance of the surface, scratch resistance, solvent resistance, etc. are weak, UV transfer paper is expensive and there is a disadvantage that the manufacturing cost is expensive.

In addition, the plastic sheet produced by a conventional method, not by thermal transfer, has a disadvantage in that the printed surface printed on the surface of the plastic sheet is not clean and has a beautiful feeling.

In the field of packaging and label printing, if the process can be reduced as much as possible, the above-mentioned problem contributes to the reduction in production cost as well as work productivity.

In recent years, UV printing has also attracted attention as the hybrid ink, oil varnish, UV coating, and the new etching effect and matting effect foreshadow a variety of printing products. In particular, in recent years, the interest and application range of the hybrid ink is expanding. Hybrids are special offset inks that include UV and general ink components, and can be UV coated directly without the use of a primer coating if you want to inline UV coating after normal printing.

The advantage of hybrid printing is that, like UV inks, it can reproduce the high gloss effect in paper and box printing, and inline effects can be reproduced in many places, instead of double coater, which is expensive to invest.

Printing with such hybrid inks enables UV coating on inks printed with a wet-trap of conventional offset concepts.

UV coating (Ultra Violet Coating) refers to UV coating. It is a coating method that uses the property that the coating liquid hardens when exposed to UV rays. It is cheaper and faster than laminating, so it is suitable for use in small prints or small prints. UV coatings can be thought of as a varnish on paper.

Therefore, it is torn together with the paper, and has a rotting property, so there is an aspect to protect the environment. However, there are no examples of applying the UV coating to the embossed surface yet.

Public utility model publication 97-9725

The present invention has been made in order to solve the problems as described above, after the UV-curable resin coating on the extruded molded product that is extruded or the UV-curable resin coating on the embossed film of the release paper and laminated to the extrudate after passing through the UV curing machine By using the method of separating the embossed film, which is a release paper after UV curing, it has excellent scratch resistance, solvent resistance, light resistance, etc., and continuously extrudes an effect that does not break when folded or bent. To provide a method and apparatus for coating an embossed UV curable resin.

The present invention, (a) the step of coating a UV curable resin on the surface of the release paper 120 or the extrudate 100 is embossed (S10), and (b) the release paper film 120 having the embossed pattern formed Step S20 of laminating the extrudate 100 and (c) curing the film 120 having the embossed pattern formed on the extrudate 100 with the first UV irradiator 60a (S30). And (d) releasing the film 120 having the embossed pattern formed on the extrudate 100 (S40); And (e) curing the extrudate 100 in which the embossed patterned film 120 is released with a second UV irradiator 60b (S60). The extrudate comprising continuously UV curable resin By embossing coating.

In the step (b), the step of laminating the film 120 and the extrudate 100 may be performed at a temperature of 50 to 170 ° C.

The method further includes the step of forming an embossed pattern on the film before the step (a), wherein the forming the embossed pattern on the film comprises: an embossing roller 35 with respect to the film 120 supplied from the fabric hanger 150. Step (S15) is formed by heating while pressing between the silicon roller 30 to form an embossed pattern, the film 120 is a film embossed PE PE film on the film, or a linear low density PE film on the film It may be a film which embossed the dry laminated film.

Further comprising the step of forming an embossed pattern on the film before the step (a), the step of forming the embossed pattern on the film, UV curable resin on the lower part of the PET film 120 supplied from the fabric hanger 150 10) coating step (S12), and the step of pressing the pressure between the embossing roller 35 and the silicon roller 30 against the film 120 coated with the UV curable resin (10) (S14) And the step (S16) of curing the film on which the embossed pattern is formed by the UV irradiation device (60).

The film 120 may be any one selected from a matte PET film, a matte film or an OPP film made by coating a wax or matting agent on the PET film.

The extrudate 100 may include any one selected from exaphan, window frames, chassis, edges, and PS (polysterene) foamed plates.

An extrudate 100 supplied from the extruder, a silicone roller 32 for supplying the UV curable resin 10 on the upper side of the extrudate 100, and connected to the silicon roller to store the UV curable resin 10 The container 12, the embossed patterned film 120 supplied from one side of the extrudate 100 supplied from the extruder, the embossed patterned film 120 and the extrudate 100 are laminated together. A first UV irradiator (60a) to cure the sheeter 300 and the embossed pattern passing through the sheeter 300 and the film 120 and the extrudate 100 formed thereon; And a second UV irradiation apparatus 60b for curing the embossed pattern with respect to the extrudate 100 released from the extrudate 100 with the film 120 having the embossed pattern formed thereon.

The surface of the embossed patterned film 120 may further include a mesh roller 20 for supplying the UV curable resin and a container 12 for storing the UV curable resin while being connected to the mesh roller.

A silicon roller 32 for supplying the UV curable resin 10 from the lower side of the extrudate 100 and a container for storing the UV curable resin while being connected through the silicon roller 32 and the other silicon roller 32. 12 and the film 120 supplied from the lower side of the extrudate, and may comprise a second paper mill 300b for laminating the film 120 and the extrudate.

The film 120 may be any one selected from a matte PET film, a matte film or an OPP film made by coating a wax or matting agent on the PET film.

The UV curable resin is 50 to 120 parts by weight of reactive monomer, 1.0 to 60 parts by weight of adhesion promoter, and 0.5 to photoinitiator based on 100 parts by weight of any one selected from urethane acrylate oligomer, epoxy acrylate oligomer, and acrylic acrylate oligomer. It may be to include 10.0 parts by weight.

According to the method of continuously embossing the UV curable resin embossed coating of the extrudate according to the present invention, a method of separating the embossed film of the release paper after UV curing by laminating the embossed film of the release paper and the extrudate, not transfer. By using the UV resin coating, it is possible to provide an embossed pattern plate having excellent scratch resistance, solvent resistance, light resistance, and the like, and the embossed pattern can be maintained even when bent or bent. In addition, there is an advantage of forming a pattern with a UV curable resin at a low price compared to the method of thermal transfer to the plate. In addition, since the film used in the present invention has good release property, it has the advantage of being reused 7 to 8 times after using it once.

1 is a view showing an apparatus for manufacturing an embossed film using a UV irradiation device.
2 is a view showing the configuration of the surface layer of the embossing roller according to the present invention.
3 shows an apparatus for manufacturing an embossed film using a heater.
4 is a view showing an apparatus for forming an embossed pattern using a UV irradiation apparatus after laminating the extrudate to the embossed film.
5 is a view showing an apparatus for forming an embossed pattern using a UV irradiation apparatus after laminating the embossed film on the upper side and the lower side of the extrudate.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen. Wherein like reference numerals refer to like elements throughout.

According to the present invention, a method of continuously embossing and coating an extrudate with a UV curable resin includes (a) coating a UV curable resin on a surface of an embossed release paper 120 or an extrudate 100 (S10), (b) laminating the release paper film 120 having the embossed pattern formed thereon and the extrudate 100 (S20), and (c) the embossed patterned film 120 laminated on the extrudate 100 formed therein. Curing (S30) the first UV irradiator (60a), and (d) releasing the film (120) having the embossed pattern laminated on the extrudate (100) (S40); And (e) curing the extrudate 100 having the embossed patterned film 120 released therefrom by using a second UV irradiator 60b (S50).

As described above, in order to proceed with the UV coating process, the embossing must be made on the surface of the film.

The film on which the embossing treatment has been performed refers to an embossing film such as unevenness, matte semi-gloss, diffuse reflection, and hologram pattern.

The plastic material for this purpose is composed of a thin film is very flexible and has excellent durability for long time use in the outdoors.

As described above, an embossing roller is required to give the film an embossing effect.

1 is a view showing an apparatus for manufacturing an embossed film using a UV irradiation device.

Referring to FIG. 1, the UV curable resin 10 is disposed between the embossing roller 35 and the pressure roller 30. The pressure roller 30 means a silicon roller.

2 is a view showing the configuration of the surface layer of the embossing roller according to the present invention.

Referring to FIG. 2, the embossing roller 35 has embossed pattern portions 36 protruding in relief to strongly press the film 120 to strongly press the film 120 on the surface thereof. In the portion in contact with the embossed pattern portion 36 provides a method of embossing the film 120 to the film 120 is pressed to form an embossed pattern.

However, according to FIG. 1, since the UV irradiation device 60 is used in the manufacturing step of the embossing film 120 according to the present invention, the UV curing property is simultaneously applied while heating and pressing between the embossing roller 35 and the pressure roller 30. It is preferable to use the UV irradiation apparatus 60 as a means by which the resin 10 can be cured.

In general, the trend toward miniaturization and slimming of electronic products and mobile phones is dominant. Accordingly, the demand for flat exteriors is increasing, and the application of the printing method increases the added value by providing functions such as various colors and touches. Accordingly, the demand for the ultraviolet curable resin 10 which does not use an organic solvent environmentally is increasing. The ultraviolet curable resin composition 10 consists of an oligomer, a monomer, a photoinitiator, an additive, etc. When ultraviolet rays are irradiated to the ultraviolet curable paint, radicals are generated from the photoinitiator, and the generated radicals attack the double bonds of the oligomer and the monomer to cure while forming crosslinks of a three-dimensional network. Since the UV cured paint hardens in a short time compared to other paints to form a film, the time required for the process is short, productivity is excellent, and there is less environmental pollution because no volatile solvent is used.

As described above, UV curing generally refers to a process in which an initiation reaction is initiated by radicals or cations generated from photoinitiators by UV irradiation, and a reactive monomer or oligomer is cured through a continuous reaction. The reason for using this UV curing system is that UV (Ultraviolet) used as an energy source can be cured in a short time by irradiating a local part at room temperature, and it can be cured in a short time. It helps to solve the pollution problem caused by it.

UV curing described above refers to a radical polymerization method, in which a photoinitiator absorbs light to generate a radical, and the radical is added to a monomer (monomer) to proceed with a chain reaction. .

The UV wavelength used for the UV curing reaction is 200 ~ 400nm and has an energy of 5100eV. There are various light sources used here, and among the light sources, the most commonly used light source is a mercury lamp. At this time, the pressure in the lamp or the addition of halogen compounds to control the wavelength emitted. Upon receiving the energy emitted from the mercury lamp, the photoinitiator proceeds to cure through radical polymerization with the reactive resin while generating radicals. In this case, the photoinitiator forms a radical may be divided into a case of generating free radicals by hydrogen desorption and a case of generating free radicals by α-cleavage.

Photoinitiators play an important role in controlling the initial reaction rate and degree of cure through absorption of light. The initiation rate is related to instantaneous light intensity, sample thickness, light absorption, and quantum yield of orphan initiator concentration. .

A photoinitiator is added to a UV resin (all UV paints, coatings, inks, paints, adhesives, sealants, etc.) are added in small amounts to UV light from the UV lamps. ) Refers to a substance that initiates a reaction. Depending on the type of resin, the photoinitiator contains about 0.5 to 10% by weight and serves to initiate photopolymerization of monomers, oligomers, and radical groups.

The monomers and oligomers are photopolymerized, and when they receive enough ultraviolet light they turn into polymers (polymers) that appear to be dry as we see them as solids in the liquid state, which is called UV curing.

Depending on the type of photoinitiator, there are two types of UV resin curing methods depending on the curing mechanism. Most of the paints currently in use use radical polymerization.

Radical polymerization is further divided into inter molecular hydrogen abstraction and intra molecular photo cleavage.

Hydrogen separation type includes benzophenone series and thioxantone series, which do not actually participate in photopolymerization alone, and cause polymerization with hydrogen donor (primarily tertiary amines).

The intermolecular fission type is the most widely used UV resin because the molecules themselves absorb UV energy to form radicals.

Most representatively, alpha hydroxy ketone (α-hydroxy ketone type) mainly used for transparent coating, white coating and alacryl phosphine oxide (acryl phosphine oxide type) are used for transparent coating of thick film.

The mixing ratio of the photoinitiator shows a lot of difference depending on the application and the equipment. Generally, when used in a matte film or a glossy film as in the present invention, 2 to 5% by weight is mixed.

Preferably, the UV-curable resin composition, the UV-curable resin is 50 to 120 parts by weight of reactive monomer, adhesion promoter 1.0 based on any one 100 parts by weight selected from urethane acrylate oligomer, epoxy acrylate oligomer, acrylic acrylate oligomer 60 parts by weight, and 0.5 to 10.0 parts by weight of the photoinitiator may be included.

It may be one or more homopolymers or heteropolymers selected from the group consisting of EA (Ethyl acrylate), BA (Butyl acrylate) and 2-EHA (2-Ethyl hexyl acrylate) as an adhesion promoter to the ultraviolet curable resin composition, preferably It may be a heteropolymer of 2-ethylhexyl acrylate (2-Ethylhexyl acrylate, 2-EHA) and ethyl acrylate (EA).

The manufacturing method of an ultraviolet curable resin composition is as follows.

An ultraviolet curable resin composition is prepared by mixing the reactive acrylate monomer and the photopolymerization initiator with the acrylic acrylate prepared in the photocurable resin reaction. The urethane acrylate used at this time is 30 to 70% by weight, preferably 40 to 60% by weight.

As the reactive acrylate or vinyl monomer, monomers having at least one acrylate or vinyl group in the molecule are used.

The reactive acrylate or vinyl monomer is a monomer having a monofunctional group, such as acryloyl morpholine, phenoxy ethyl acrylate, phenoxy diethylene glycol acrylate, phenoxy tetraethylene glycol acrylate, phenoxy hexa ethylene glycol acrylate , Dicyclo pentadiene acrylate, ortho phenylphenoxy ethyl acrylate, dicyclopentadiene acrylate, ortho phenyl pedi methanol monoacrylate, tripropylene glycol di Acrylate, polyethylene glycol diacrylate, tris (2-hydroxyethyne) isocyanate, diacrylate, dimethylol tricyclodecane dichlorate and ethylene oxide 3 molar addition trimethylol propane triacrylate, ethylene oxide 6 mole additional trim Selected from the group consisting of thiolol propane, triacrylate, phenaerythritol triacrylate, dris (acryloxyethyl) isocyanurate, dipentaerythritol hexa acrylate and caprolactone modified dipentaerythritol hexa acrylate To be used.

Here, a compound selected from the group consisting of reactive acrylates is used.

Here, the amount of the reactive acrylate monomer is used 20 to 50% by weight, preferably 30 to 50% by weight.

In addition, photoinitiators used in the production of UV-curable resin compositions include benzophenol and its derivatives, benzoin, benzoin alkyl ether benzyl dimethyl ketal, 1-hydroxy cyclohexyl phenyl ketone, diethoxy acetoferone, phosphine oxide, Selected from the group consisting of amino acetophenone series, 2-hydroxy 2-methyl-1-phenylpropano-1-non, 2-benzine-2-dimethylamide-1- (4-morpholinaphenyl) -butanane Preference is given to using compounds which become. The amount used is 0.5 to 10% by weight, preferably 1 to 5% by weight.

Referring to FIG. 1, the film 120 is supplied between the pressing roller 30 and the embossing roller 35 through the guide roller 40 in the fabric hanger 150 on which the film is wound. It is preferable that the embossing roller 35 is formed with the three-dimensional pattern on the surface.

The embossing method of the film 120 will be described in detail above, coating the UV curable resin 10 on the film supplied from the fabric hanger 150 (S12); and the UV curable resin 10 is coated. Pressing the film 120 between the embossing roller 35 and the silicon roller 30 (press roller) to form an embossed pattern (S14); And curing the film on which the embossed pattern is printed by the UV irradiation device 60 (S16).

2 is a view showing the configuration of the surface layer of the embossing roller for imparting the embossing on the film according to the present invention.

Referring to FIG. 2, the surface of the embossing roller 35 has an embossed pattern portion 36 embossed to emboss the film supplied from the fabric hanger, and has a recessed shape compared to the embossed pattern portion 36. .

This surface layer configuration of the embossing roller 35 is formed through engraving, nickel plating, general corrosion or laser corrosion processes.

Referring to FIG. 1, when the film 120 passes through the embossing roller 35, the pattern of the embossing roller 35 is transferred to the film 120 in the film 120, and the embossed film 120. (emboss) A pattern is formed. Of course, according to Figure 1, the process of forming the embossed pattern described above requires a UV curable resin 10, the UV curable resin 10 through the resin supply device 200 embossing roller 35 and the pressure roller It is preferable to supply before the film 120 is inserted between the 30.

At this time, since a force is applied between the embossing roller 35 and the pressure roller 30, the pressure is applied between the embossing roller 35 and the pressure roller 30. At this time, by inducing the polymerization reaction of the monomer and the oligomer through the photoinitiator in the resin contained in the UV curable resin using a UV lamp, UV irradiation device 60, the pattern of the embossing roller 35 is transferred to the film 120 The process is easier to do.

The film 120 obtained through the above process is wound on the rewinding roller 50 as the emboss pattern layer is formed on the film 120 while being cooled through the cold air emitted from the cooling device 70.

3 shows an apparatus for manufacturing an embossed film using a heater.

Referring to FIG. 3, the film 120 caught on the fabric hanger 150 is supplied between the pressing roller 30 and the embossing roller 35 along the guide roller 40. At this time, it is preferable that the embossing roller 35 is provided with the heater 80 which is a heating apparatus in the center, having a cylindrical shape.

In addition, the auxiliary heater 80a may be further provided to make it easier to reproduce the pattern of the embossed layer of the film 35 on which the embossed layer is formed during the embossing process through the embossing roller 35.

The process of forming the embossed pattern on the film 120 through the above process is similar to the process of forming the embossed pattern through the UV irradiation apparatus.

Here, the step of forming the embossed pattern on the film 120 is a step of forming an embossed pattern while pressing between the embossing roller 35 and the silicon roller 30 against the film 120 supplied from the fabric hanger 150 (S15). It is preferable that it consists of).

The embossed patterned film is cooled through the cold air supplied from the cooling device 70, and the embossed pattern is seated on the film. The film 120 having the embossed pattern is wound on the rewinding roller 50 and is ready to be supplied to the extrudate 100.

However, when judging according to FIG. 3, the film 120 used in the method of forming the emboss using the heater 80 is a film made of PE TiDy on a PET film, or a linear low density PE film is dried on a PET film. It is preferable to use a laminated film.

A film embossed with a PE titaniumide film on a PET film or a film embossed with a dry lamination film of a linear low density PE film on a PET film has a property of easily releasing even after UV curing. Therefore, in order to give the embossing effect to the extrudate 100 through the heating process as shown in FIG. 3, it is preferable to use a film obtained by PE TiDy on a PET film or a film of dry laminating a linear low density PE film on a PET film. .

The film 120 used in the present invention may be a PET (polyethylene terephthalate) matte film, a PET or a wax or a matting agent. It is preferably any one selected from a coated matte film and an oriented polypropelene (OPP) matte film. Here, the term "matte film" refers to a film having no light or gloss. The quencher also refers to a material added to the film to dissipate light. Silica gel is widely used as such a matting agent.

In order to provide a matting effect on the silica gel, the silica gel is produced by milling fine particles of several microns in size. The practice cargel (SiO ₂ ) exhibiting a matt is high purity, amorphous, finely divided, and porous.

An apparatus for continuously embossing and coating an extrudate according to the present invention using a UV curable resin includes: an extrudate 100 supplied from an extruder (not shown); and a UV curable resin 10 above the extrudate 100. ) Is a silicon roller 32 for supplying; and a vessel 12 connected with the silicon roller to store the UV curable resin 10; and an embossed pattern supplied from one side of the extrudate 100 supplied from the extruder The formed film 120; and the papermaking machine 300 for laminating the film 120 having the embossed pattern and the extrudate 100; and the film 120 having the embossing pattern passing through the paper 300. ) And a first UV irradiation device (60a) for curing the extrudate 100; And a second UV irradiator 60b for the embossed pattern film 120 to cure the embossed pattern with respect to the extrudate 100 released from the extrudate 100.

 4 is a view showing an apparatus for laminating an extrudate to an embossed film and then embossing the embossed pattern with the UV curable resin on the extrudate using a UV irradiator.

Referring to FIG. 4, the UV curable resin 10 may be added to the side at which the embossed film 120 is supplied, and supplied through the silicon roller 32 and the mesh roller 20 having three stages. It is also possible.

Accordingly, while being connected to the mesh roller 20, the pressure roller 31, and the mesh roller 20, which supply the UV curable resin to the embossed surface of the film 120 having the embossed pattern, the UV curable resin 10 It may further include a container 12 for storing).

At this time, the UV curable resin 10 stored in the container 12 is the mesh roller 20 and the pressure roller 31 is rotated in accordance with the speed of the extrudate as the embossing film 120 passes through the mesh roller 20 on one side A certain amount of UV curable resin 10 is coated on the embossed portion of the embossed film by the added knife.

The thickness of the UV curable resin 10 supplied through the mesh roller 20 is adjusted by the carpenter of the mesh roller 20. As described above, the UV curable resin 10 coated on the upper surface of the film 120 is transferred to the extrudate 100 through a process of laminating through the paper separator 300, and the first UV irradiation device 60a. Or it goes through a process of curing through the ultraviolet light irradiated through the second UV box 60b.

The UV curable resin 10 shown in FIG. 4 is made of the same composition as the UV curable resin described above. Since the UV curable resin 10 forms a liquid phase, the UV curable resin 10 is preferably contained in the container 12.

The UV curable resin 10 contained in the container 12 is moved upward through the mesh roller 20 of FIG. 4, and the UV curable resin 10 moved upward is rotated in a counterclockwise direction. It is preferable that the silicon roller 32 located at the lowermost side of the silicon roller 32 which is transmitted to 32 and constituted in three stages is configured to be able to contact the extrudate 100 from which the lower end is extruded.

The thickness of the UV curable resin 10 supplied through the silicon roller 32 is preferably controlled by the carpenter of the mesh roller 20. As described above, the UV curable resin 10 whose thickness is controlled is transferred through the silicon roller 32 which is in contact with the surface from which the extrudate 100 comes out, and the surface layer of the extrudate is applied by the UV curable resin (S10).

Alternatively, a method of installing the container 12 for supplying the UV curable resin 10 to the side to which the embossed film 120 is supplied and directly adding the film 12 may be used.

As described above, the UV curable resin 10 is inserted into the coated paper 300 on the embossed film 120 or the upper layer of the extrudate 100. The paper separator 300 is preferably composed of two rollers.

It is preferable that the heater 80 is provided in the center part of the lower roller 46 or the upper roller 46 of the said paper machine. Therefore, the embossed film 120 and the extrudate 100 are laminated while passing through the lower roller 45 and the upper roller 45 (S20). Extruded material 100 that can be used herein is preferably any one of an exapan (ceiling), an edge (border), a chassis, and a PS (Polysterene) foamed flat plate.

 Since the lamination process of the film 120 and the extrudate 100 is a process generally used for the extrudate for plastic, it may be omitted below.

It is preferable that the process of laminating the film 120 and the extrudate 100 through the sheeter 300 is preferably performed in a temperature range of 50 to 170 ° C. In order to maintain the temperature of 50-170 degreeC mentioned above, the center part of the lower side or upper side roller is provided with the heater 80, and also it can also be provided with the auxiliary heater 80a in order to maintain heating temperature.

As described above, the UV curable resin 10 is not cured even though it passes through the paper mill 300. Therefore, the pattern of the embossed film 120 may not be regarded as being transferred to the extrudate 100.

In order to cure the embossing formed in the pattern of the film 120, a process of seating the pattern on the extrudate 100 through the UV curable resin 10 is required.

When irradiated with ultraviolet rays through the first UV irradiation device 60a for the film 120 and the extrudate 100 made of paper, the embossed pattern formed on the film 120 is polymerized in the process of polymerizing the UV curable resin 10. Transfer to the extrudate 100 (S30).

UV curing is the chemical reaction of the ink or paint's raw materials with UV (ultraviolet) light without the use of heat or wind to dry the ink or paint. When the ink in the liquid state or the raw material of the paint is chemically reacted, it becomes hard in a solid state. In UV curing, UV (ultraviolet) is applied to a polymer raw material (monomer and oligomer) before it has yet become a polymer, and the raw material (liquid) of the polymer receives ultraviolet rays and changes into a polymer (solid).

Since UV curing does not use solvents, it does not dry solvents, but instead chemically reacts liquid materials with ultraviolet rays and polymers produced by chemical reactions become hard. Also called.

As described above, when undergoing UV curing, embossing transferred to the film 120 is transferred onto the extrudate 100. In particular, since UV curing is a chemical reaction as described above, scratch resistance, light resistance, solvent resistance, and the like are excellent.

As described above, after the embossing pattern is transferred onto the extrudate 100, a work of releasing the film 120 is necessary (S40).

The film 120 used in the method for continuously UV embossing coating the extrudate 100 according to the present invention is any one selected from PET matte film, matte film coated with a matting agent or wax on PET film, and OPP matte film Preference is given to using.

According to the present invention, the film 120 used in the method of continuously coating the extrudate 100 with UV embossing is a film embossed with a PE TiDy on a PET film or a film embossed with a linear low density PE film on a PET film. In addition, it is preferable to use the film which embossed with UV curable resin to PET film.

As described above, after releasing the film 120, the pattern embossed on the extrudate 100 is completely cured using the UV irradiator 60b (S50).

In this way, the finished extrudate 100 is pulled out through the extractor 90 and cut to give a product that is continuously UV embossed coating the extrudate 100.

5 is a view showing an apparatus for embossing coating on the upper side and the lower side of the extrudate using the UV curable resin embossing coating apparatus according to the present invention.

Referring to FIG. 5, a vessel 12 containing a UV curable resin on the lower side of the extrudate 100 is located below the apparatus for continuously embossing and coating the extrudate according to the present invention. Therefore, the UV curable resin contained in the container 12 is transferred to the silicon roller 32 by the rotation of the mesh roller 20, which is partially contained in the container, and the silicon roller 32 again and the lower surface of the extrudate 100 It is configured to be in contact with the UV curable resin is configured to be delivered through the silicon roller 32 and the mesh roller 20.

However, as shown in FIG. 5, the process of laminating the embossed film 120 with respect to the upper and lower surfaces of the extrudate 100 is preferably performed separately. To this end, the second paper combiner 300b of FIG. 5 may be provided. The process of laminating the embossed film 120 and the extrudate 100 described above is the same as the process of laminating the upper side of the extrudate 100 described above.

In the apparatus for laminating both sides of the extrudate 100, in order to transfer the embossed pattern formed on the embossed film 120 to the extrudate 100, the first UV irradiator 60a and the second UV ancestor 60b. Preference is given to using.

At this time, since the embossed film 120 laminated on the lower side has good release property, the embossed film 120 undergoes a process of being released according to the rotation of the rewinder roller 50.

Hereinafter, the embodiment of the method for continuously UV embossing coating the extrudate according to the present invention will be described in more detail, and the present invention is not limited to the following examples.

<Examples>

First, the PET film is inserted between the embossing roller and the pressure roller. At this time, the UV curable resin is coated on the upper layer of the PET film.

The UV curable resin-coated PET film was formed using a UV lamp to form a pattern printed on the embossing roller toward the film.

In particular, since the PET film is in a glossy state, embossing of the hologram is possible. As described above, when the embossing of the hologram is made on the PET film, a mark that can be identified even at night is exposed to the outside.

After the embossing work on the PET film was finished, the PET film was pasted on the extruded extruded plate.

Exapan refers to the ceiling material used in construction, and coated with UV curable resin on the embossed film or extrudate as a release paper, and then laminated and subjected to UV curing process to release the film, then shines the light When given, it shines brightly, which makes the ceiling look beautiful. Of course, the exaphan was to be supplied in the state of extrusion.

When the exapan leaves the extruder, it is not yet cured, so it may cause a problem in the process of attaching the PET film. Therefore, the extruded extrudates are cooled with cooling water and solidified for the process to be developed later. desirable.

And the UV curable resin as shown in Figure 4 on the upper layer of the PET film is embossed above was applied on the PET film through a mesh roller.

Thus, the PET film coated with UV curable resin was laminated with exaphan as it went through the paper.

At this time, the temperature of the paper machine was set to be a temperature of 100 ℃.

As described above, the laminated body of the embossed PET film and exapan, which was cured, was subjected to a UV curing process using a UV lamp.

Through the above-described process, the UV-curable resin coated on the PET film is cured to form an embossed pattern on the exapan.

Then, when the PET film is released from the exapan, the embossed exapan is drawn into the extractor.

Of course, at this time, in order to cure the embossed pattern formed on the exapan, a UV curing process was performed using a second UV curing machine for the exapan on which the PET film was released.

Although the embossed pattern is formed on the PET film through the process as described above, the embossed pattern may be formed by embossing not only a glossy film but also a matte film or a semi-matte film.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, This is possible.

10: UV curable resin 12: container
20: mesh roller 25: knife
30: pressure roller 31: rubber pressure roller
32: silicon roller 35: embossing roller
40: guide roller 45: upper and lower rollers
46: silicon roller 50: rewinding roller
60a: 1st UV irradiation apparatus 60b: 2nd UV irradiation apparatus
100: Extruded 120: Film
150: fabric hanger 200: resin supply device

Claims (11)

(a) coating a UV curable resin on the surface of the release paper film 120 or the extrudate 100 that is embossed (S10);
(b) laminating the release paper film having the embossed pattern formed thereon and the extrudate 100 (S20);
(c) curing the film 120 having the embossed pattern laminated on the extrudate 100 with a first UV irradiator 60a (S30);
(d) releasing the film (120) having an embossed pattern formed on the extrudate (100) (S40); And
(e) curing the extrudate 100 having the embossed pattern-formed film 120 released therefrom by using a second UV irradiator 60b (S50); UV curable resin embossing coating method. The method of claim 1,
The step of laminating the film 120 and the extrudate 100 in the step (b) is a method of continuously embossing coating UV curable resin, characterized in that the extrusion proceeds at a temperature of 50 ~ 170 ℃. The method according to claim 1 or 2,
Further comprising the step of forming an embossed pattern on the film before step (a),
Forming an embossed pattern on the film,
It is made of a step (S15) of forming an embossed pattern by heating while pressing between the embossing roller 35 and the silicon roller 30 against the film 120 supplied from the fabric hanger 150,
The film 120 is a film made of PE Ti die on PET film,
A method of continuously embossing a UV curable resin to an extrudate, which is a film obtained by dry laminating a linear low density PE film to a PET film. The method according to claim 1 or 2,
Further comprising the step of forming an embossed pattern on the film before step (a),
Forming an embossed pattern on the film,
Coating a UV curable resin (10) on top of the film (120) supplied from the fabric hanger (150) (S12);
Pressing the UV curable resin (10) coated film (120) between the embossing roller (35) and the silicon roller (30) to form an embossed pattern (S14); And
And curing the film on which the embossed pattern is formed with a UV irradiator (S16). A method of continuously embossing a UV curable resin comprising an extrudate. 5. The method of claim 4,
The film 120 is a method of continuously embossing coating UV curable resin, characterized in that any one selected from a PET matte film, a matte film or OPP film made by coating a wax or matting agent on the PET film. The method according to claim 1 or 2,
The extrudate 100 is a method for continuously UV embossing coating the extrudate, characterized in that any one selected from exapan, window frame, chassis, edge and polystyrene foam (PS) foamed plate. Extrudate 100 fed from the extruder;
A silicon roller 32 for supplying the UV curable resin 10 from the upper side of the extrudate 100;
A container 12 connected with the silicon roller to store a UV curable resin 10;
An embossed patterned film 120 supplied from one side of the extrudate 100 supplied from the extruder;
A paper mill 300 for laminating the film 120 having the embossed pattern and the extrudate 100 formed thereon;
A first UV irradiator (60a) for curing the film 120 and the extrudate 100 having the embossed pattern passing through the sheeter 300; And
The embossed patterned film 120 continuously comprises a second UV irradiator 60b for curing the embossed pattern with respect to the extrudate 100 released from the extrudate 100. Device for embossing coating with UV curable resin. The method of claim 7, wherein
Silicon roller 32 for supplying a UV curable resin to the lower surface of the film 120 is embossed pattern formed; And
And a container (12) for storing the UV curable resin while being connected to the silicon roller. 9. The method according to claim 7 or 8,
Silicon roller 32 for supplying the UV-curable resin 10 from the lower side of the extrudate 100;
A container (12) for storing the UV curable resin while being connected through the silicon roller (32) and another silicon roller (32);
A film 120 supplied from the lower side of the extrudate;
Apparatus for continuously embossing coating the extrudate with a UV curable resin, characterized in that it comprises a second paper (300b) for laminating the film (120) and the extrudate. 10. The method of claim 9,
The film 120 is a PET matte film, a device for continuously UV embossed coating the extrudate, characterized in that any one selected from a matte film or OPP film made by coating a wax or matting agent on the PET film. The method of claim 10,
The UV curable resin is 50 to 120 parts by weight of reactive monomer, 1.0 to 60 parts by weight of adhesion promoter, and 0.5 to photoinitiator based on 100 parts by weight of any one selected from urethane acrylate oligomer, epoxy acrylate oligomer and acrylic acrylate oligomer. An apparatus for continuously UV embossing coating an extrudate comprising 10.0 parts by weight.

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