Abstract: Provided is a method of elevating a quality of a printed matter by performing a post-treatment including a gloss and non-gloss treatment on a digital printed matter and to a method which performs a post-treatment including a gloss or a non-gloss, and a gloss and non-gloss treatment on an entire printed surface of the digital printed matter or on a partial specific printed surface to elevate a quality of a printed matter.

Abstract: Disclosed herein is a method of packing binder rings for binding documents. In the method, a plurality of binder rings having a predetermined length is held by a fork-shaped jig. Thereafter, the binder rings held by the fork-shaped jig are heat-adhered to a fastening film, and the fork-shaped jig is removed from the binder rings, thus forming a unit packing set. Subsequently, a plurality of unit packing sets is contained in a packing box in such a way as to fold the unit packing sets or stack the unit packing sets on top of one another such that the binder rings overlap with each other, thereby preventing the binder rings from becoming entangled with each other although a user draws the binder rings out of the packing box one by one.

Abstract: A layered film sheet which can coat a sheet-like subject and is folded to coat the subject. In the folded, layered film sheet, an embossed polyvinyl chloride film exists as an outermost layer, an EVA film serves as an innermost layer in direct contact with the subject and a low density polyethylene film, an EVA film and a polyester film are intermediately inserted therebetween. The LDPE film and the polyester film are bonded to the outermost layer and the innermost layer via water-miscible acryl adhesives respectively. The innermost layer is softened and made adhesive at low temperatures and thus, the total coating process can be conducted at decreased temperatures so that the outermost PVC film can be expressed in effective embossed patterns.

Abstract: A film roll holder for laminators by which a hollow paper tube wound with a film thereon is held around a rolling shaft of a laminator while the film wound around the hollow paper tube is transferred to a heating roller, thus preventing air pockets from being generated between the film and the surface of the objective material and preventing wrinkles from being formed on the film. The film roll holder includes a cylindrical body having a shaft hole; an annular groove; and a plurality of elongated grooves. There is a support blade unit inserted into each of the elongated grooves of the cylindrical body. The support blade unit has a plurality of support blades and a fitting notch. The film roll holder further includes a rubber ring fitted over each of the annular grooves, and a cover mounted to each of both ends of the cylindrical body by a plurality of mounting bolts.

Abstract: A film loading arrangement simplifies the film loading process for a user and prevents the improper loading of a laminate film roll into a laminating machine. The laminating machine includes a female support unit configured to receive a first end of the laminate film roll to properly position the roll in the laminating machine, and a male support unit configured to be received in the second end of the laminate film roll to properly position the roll in the laminating machine. A male coupling structure of the roll is received in the female support unit and a female coupling structure of the roll receives the male support unit. The laminating machine further includes a tensioning mechanism for adjusting the force required to unroll laminating film from the supported roll.

Abstract: The device for holding a film roll in a laminator. The film roll holding device of the present invention helps a user correctly install the film roll in the laminator without confusing a film roll installation orientation. Furthermore, the film roll holding device can appropriately tension the film during a film-coating process despite having a simple structure.

Abstract: The laminator with a small film roll has a structure capable of having the small film roll mounted thereto, thus reducing costs required for laminating a target sheet, thereby solving problems occurring due to expensive costs. Furthermore, a feed tray is easily and removably installed, so that a process of mounting the small film roll to the laminator is simplified, thereby most users can easily use the laminator. Also, an upper heating roller of the laminator is able to be replaced by a roller having an embossing function. Therefore, the laminator of the present invention is able to texture the target sheet with various and graceful shapes.

Abstract: The device for holding a film roll in a laminator. The film roll holding device of the present invention helps a user correctly install the film roll in the laminator without confusing a film roll installation orientation. Furthermore, the film roll holding device can appropriately tension the film during a film-coating process despite having a simple structure.

Abstract: The device for actuation of rollers using a feed tray in a laminator. The roller actuating device of the present invention mechanically and simply actuates both a pair of heating rollers for thermal coating of films on both surfaces of an object material and a pair of compressing rollers for compressing and feeding the film-coated object material to the outside. The roller actuating device has a simple structure, thus allowing a user to easily manipulate the laminator.

Abstract: A laminate film of thermoplastic resin includes V-shaped or semicircular grooves between protruded parts formed continuously in a longitudinal direction and a transverse direction of the film, on one surface thereof. Upon conducting a lamination process, generation of air pockets between the laminate film and a subject to be coated can be effectively prevented, and the laminate film does not come off the subject.

Abstract: A film roll holder for laminators by which a hollow paper tube wound with a film thereon is held around a rolling shaft of a laminator while the film wound around the hollow paper tube is transferred to a heating roller, thus preventing air pockets from being generated between the film and the surface of the objective material and preventing wrinkles from being formed on the film. The film roll holder includes a cylindrical body having a shaft hole axially holed in the cylindrical body; an annular groove circumferentially provided on each of both ends of the cylindrical body; and a plurality of elongated grooves axially provided around an outer surface of the cylindrical body to be spaced apart from each other at pre-determined intervals, and a support blade unit inserted into each of the elongated grooves of the cylindrical body.

Abstract: Disclosed is a laminate film of thermoplastic resin, comprising V-shaped or semicircular grooves between protruded parts formed continuously in a longitudinal direction and a transverse direction of the film, on one surface thereof, which is advantageous in that, upon conducting a lamination process, generation of air pockets between the laminate film and a subject to be coated can be effectively prevented, and the laminate film does not come off the subject.

Abstract: A laminate sheet having a pressure sensitive adhesive layer, characterized in that the adhesive layer is superimposed on an embossed release layer, whereby embossed shapes of the release layer are transferred onto the adhesive layer. Upon conducting a lamination process the embossed adhesive layer is separated from the release layer and thus functions to prevent the formation of air pockets between the adhesive layer and a subject sheet and the detachment of the laminated adhesive layer from the subject sheet.

Abstract: Disclosed are a light protecting sheet, capable of displaying an advertising subject of a real picture as an image of high resolution, which is advantageous in terms of low production cost, excellent productivity and light-proof characteristic, and a method for manufacturing the same. The light protecting sheet comprises an aluminum-deposited film, a transparent film coated onto one side of the aluminum-deposited film via a two-component adhesive, a white ink layer coated on the other side of the aluminum-deposited film, and a hot melt layer covering the white ink layer. In addition, such light protecting sheet can be manufactured by applying a two-component adhesive of white color on one side of an aluminum-deposited film, overlaying a transparent polyethylene terephthalate film on the adhesive, spreading white ink over the other side of the aluminum-deposited film, and coating a hot melt layer on the white ink layer.

Abstract: A device for eliminating static electricity from protective film of a laminated sheet in a laminator is disclosed. A longitudinal fan is set in the laminator. An air suction port is formed on the bottom wall of the laminator, thus guiding atmospheric air to the fan. An air passage is formed in the laminator so as to guide the pressurized air current from the fan to the rear wall of the laminator. An air exhaust port is formed on the rear wall of the laminator at a position around the rear end of the air passage, thus discharging the pressurized air into the atmosphere. In the fan, a drive motor is installed at one end of a longitudinal housing, while a plurality of longitudinal blades are regularly arranged in the housing so as to form a cylindrical blade body.

Abstract: A device for adjusting a position of two film rolls so as to align the two film rolls with each other in laminators is disclosed. A shaft holder engages with one end of a housing and movably receives one end of a roll shaft. A connection bolt, having a head and an externally-threaded shank provided with a woodruff key, engages with the other end of the housing from the inside to the outside of the housing, with the head being positioned inside the housing and the shank partially projecting from the housing. A bearing is set in the head of the connection bolt and holds the roll shaft passing though the shaft holder. An annular setting lever engages with the shank of the connection bolt at a position outside the housing. An adjusting handle is fitted over the woodruff key of the connection bolt. The above handle has a radial screw hole, with a wrench bolt being movably screwed into the screw hole so as to removably fix the handle to the woodruff key of the connection bolt.

Abstract: A laminator film having a plurality of continuous, fine grooves on its surface in the lengthwise direction of the film. When the laminator film and a target film to be laminated are passed between a pair of hot, engaged rollers, the air between the grooved surface and the target film can be guided out through the grooves while the grooves are flattened by the pressure and heat of the rollers. Thus, it is completely preventive of air accumulation by virtue of their continuous fine grooves, giving a great improvement in adhesiveness, surface smoothness and transparency to the resulting laminated product.

Abstract: A device for adjusting the position of two protective film rolls in laminators having two roll shafts individually having a hexagonal cross-section. The right end of each roll shaft is movably received in a cap. A bolt, having a circular head, a woodruff key part and an externally-threaded part, is fitted into a semicircular hole of the cap at the woodruff key part. The bolt also passes through a hole of a right-hand bracket of the laminator prior to engaging with a tension adjusting handle at the externally-threaded part. Both a compression coil spring and a first bushing are commonly fitted over the bolt at a position between the bracket and the handle. A bolt part axially extends from the left end of each roll shaft, while two shaft adjusting handles movably engage with the bolt part. Doubled bushings are fitted over the bolt part at a position between the two shaft adjusting handles.

Abstract: A laminating method for objects such as important documents, old documents and other printed matters to prevent a forgery or quality degradation of those objects or to protect the surfaces of those objects. In the lamination method, a released paper sheet, released synthetic resin film or non-released synthetic resin film is laminated using a thermoplastic resin solution, thereby forming a lamination sheet as a medium, so that the resultant synthetic resin thin film on the lamination sheet is subsequently transferred onto an object as the lamination sheet passes through a nip defined between pressing rollers along with the object.