KR101468492B1 - Emboss Sheet having Fine Fabric Emboss - Google Patents

Abstract

The present invention relates to a method of forming embossed sheets of various shapes and arrangements by molding by insert injection while using a fabric sheet for embossing, Providing a microfabric embossed sheet having microfabric embosses formed on both sides or on either side of the upper and lower surfaces, and preparing a Teflon coated fabric sheet of a fabric embossed with fine embossments; Depositing the Teflon coated fabric sheet on both sides or one side of the upper and lower surfaces of the mold; Injecting a rubber or plastic raw material so that an embossed sheet is formed in an inner molding space of the mold; Forming a fine fabric emboss on the surface of the embossed sheet by curing the fine emboss of the Teflon coated fabric sheet to be transferred onto the surface of the embossed sheet to which the Teflon coated fabric sheet is in contact with the raw material; And separating the cured embossed sheet from the mold and removing the Teflon coated fabric sheet.

Description

[0001] Emboss Sheet Having Fine Fabric Emboss [0002]

The present invention relates to a micro-fabric embossed sheet and a method of manufacturing the same. More particularly, the present invention relates to a micro-fabric embossed sheet and a method of manufacturing the same. More particularly, the present invention relates to a micro- The present invention relates to a micro-fabric emboss sheet capable of being efficiently formed and a method of manufacturing the same.

Generally, embossed sheets having embossed structures (embossed) in various forms are used for products such as electronic products and interior materials of buildings to protect the products or to give a beautiful appearance.

In recent years, products using display substrates such as LCDs, PDPs, and LEDs have been manufactured through a process of bonding IC circuit chips to a substrate. When transporting substrates toward various production processes, An embossing sheet is provided for each of the devices in contact with the substrate in order to prevent shocks caused by shocks or foreign matter on the surface of the substrate.

Typically, such embossed sheets are manufactured by passing a thin sheet of rubber material through an emboss roll heated to a predetermined temperature and pressing the emboss sheet with a predetermined force, thereby producing an embossed sheet having embossed structures on flat sheet paper.

However, the conventional emboss sheet is complicated in manufacturing process and can not form a fine emboss. In order to adjust the embossing embossing factors of other types, it is troublesome to replace the embossing roll itself. In the manufacturing process, Byproducts of the air are generated and pollute the atmospheric environment.

As a prior art disclosed to solve the above problems, Korean Patent No. 933182 (Dec. 14, 2009) discloses a silicone resin composition comprising a solid silicone resin A step of kneading the composition to prepare a solid-phase composition having a plasticity of 150 to 250; melting the solid-phase composition in a melt extruder and extruding the solid composition into a sheet form; A step of curing the sheet to be naturally fallen through a vertical loader, and a step of winding the cured sheet, so that chlorine gas is not generated during the manufacturing process and the embossed sheet has an uneven emboss Type silicon rubber sheet is known.

However, the embossed sheet manufactured through the above-described conventional manufacturing method is difficult to uniformly form an embossment of a small size because the embossing is performed by extruding the raw material of the embossing material. It was not possible.

Further, conventionally, as a manufacturing method by extrusion such as emboss roll, there is a problem that it is difficult to form an emboss in a product having a predetermined thickness by using a material such as plastic.

Accordingly, a mold having fine embossing processed by various processing methods such as electric discharge machining on the inner surface was manufactured, and an embossed sheet was produced by an injection method using a mold.

However, it is difficult to finely process the surface of the mold, and even when a fine emboss is formed on a mold, the emboss is irregular and it is difficult to produce an embossed sheet having a regular emboss. In addition, in order to manufacture embossed sheets having various embossed prints or shapes, it is necessary to replace the molds from time to time, so that the production is troublesome and the productivity is decreased. Also, the processing cost for processing the embossing on the surface of the mold is high, It is difficult to use a separate mold release agent.

It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an embossing method for embossing an embossed sheet by injection molding, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a micro-fabric emboss sheet capable of efficiently producing a regular emboss sheet and a manufacturing method thereof.

Another object of the present invention is to provide a method of manufacturing an embossable embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossed embossing sheet. And to provide a method for producing the same.

The micro-fabric embossed sheet proposed by the present invention is formed of rubber or plastic material having a certain thickness, and the micro-fabric emboss is formed on one or both sides of the upper and lower sides.

The fine embossed embossed sheet may be formed by attaching a Teflon coated fabric sheet to either or both sides of the upper and lower surfaces of the mold, injecting a raw material such as rubber or plastic into the mold and injecting the Teflon coated fabric sheet The emboss is molded to be transferred.

The Teflon coated fabric sheet is formed by coating Teflon to form a thin film on the surface.

The size of the emboss in the micro fabric emboss sheet is 0.01 to 1 mm.

The present invention also provides a method of manufacturing a microfabric embossed sheet comprising the steps of: preparing a Teflon-coated fabric sheet of a fabric embossed with a fine emboss; Depositing the Teflon coated fabric sheet on both sides or one side of the upper and lower surfaces of the mold; Injecting a rubber or plastic raw material so that an embossed sheet is formed in an inner molding space of the mold; Forming a fine fabric emboss on the surface of the embossed sheet by curing the fine emboss of the Teflon coated fabric sheet to be transferred onto the surface of the embossed sheet to which the Teflon coated fabric sheet is in contact with the raw material; And separating the embossed sheet cured from the mold and removing the Teflon coated fabric sheet.

The Teflon coated fabric sheet is coated with Teflon to form a thin film on the surface.

The embossed embossed sheet is formed by selectively applying the Teflon coated fabric sheet within a range of 0.01 to 1 mm in diameter.

According to the micro-fabric embossed sheet and the method of manufacturing the same according to the present invention, since the fabric sheet on which the micro emboss is formed is used, uniform and regular embossing can be efficiently formed on the sheet to obtain an embossed sheet of excellent quality .

In addition, since the micro-fabric embossed sheet according to the present invention and its manufacturing method can be applied by replacing the fabric sheet according to the product, the size and arrangement shape of various embosses can be changed while using the mold as it is, The processing speed and the process unit cost can be drastically reduced.

In addition, since the microfabric embossed sheet according to the present invention and the method for fabricating the same provide a Teflon thin film on a fabric sheet, it is possible to easily separate the product from the mold while easily separating the fabric sheet from the product have.

In addition, since the micro-fabric embossed sheet according to the present invention and the method for manufacturing the same embed sheet are injection-molded in a sheet manufacturing process, various embossed materials can be applied to efficiently form an emboss in various sheet products.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing one embodiment of a micro-fabric emboss sheet according to the present invention;
2 is a sectional view showing one embodiment of a micro-fabric emboss sheet according to the present invention.
3 is an enlarged perspective view showing a portion 'A' in FIG. 1;
Figures 4 (a) and 4 (b) are enlarged plan views schematically showing different forms of the embossed shape in one embodiment of the micro-fabric embossed sheet according to the present invention, respectively.
5 is an enlarged cross-sectional view of an embossed sheet to which a Teflon coated fabric sheet is applied in one embodiment of a microfabric embossed sheet according to the present invention.
6 is a block diagram showing an embodiment of a method for manufacturing an embossed sheet of fine fabric according to the present invention.
Fig. 7 is a process chart showing an embodiment of a method for manufacturing an embossed sheet of fine fabric according to the present invention. Fig.

The present invention is characterized in that the fine embossed embossed sheet is formed of a rubber or plastic material having a predetermined thickness, and the fine embossed embossed is formed on one or both sides of the upper and lower sides.

The fine embossed embossed sheet may be formed by attaching a Teflon coated fabric sheet to either or both surfaces of the upper and lower surfaces of the mold, injecting a raw material such as rubber or plastic into the mold and injecting the Teflon- The embossed sheet is formed so that the embossed sheet is transferred so that the embossed sheet is transferred.

Further, the Teflon coated fabric sheet is characterized in that the micro-fabric embossed sheet is coated with Teflon to form a thin film on the surface.

The fine embossed embossed sheet has a emboss size of 0.01 to 1 mm.

The present invention also relates to a method of making a teflon-coated fabric sheet, comprising the steps of: preparing a Teflon coated fabric sheet of fabric material with fine embossing; Depositing the Teflon coated fabric sheet on both sides or one side of the upper and lower surfaces of the mold; Injecting a rubber or plastic raw material so that an embossed sheet is formed in an inner molding space of the mold; Forming a fine fabric emboss on the surface of the embossed sheet by curing the fine emboss of the Teflon coated fabric sheet to be transferred onto the surface of the embossed sheet to which the Teflon coated fabric sheet is in contact with the raw material; And separating the embossed sheet from the mold and removing the Teflon coated fabric sheet.

The Teflon coated fabric sheet is coated with Teflon to form a thin film on the surface of the Teflon coated fabric sheet.

Also, the embossed embossed sheet has the technical feature that the Teflon coated fabric sheet is selectively applied within a range of 0.01 to 1 mm in diameter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of a micro-fabric embossed sheet and a method of manufacturing the same according to the present invention will be described in detail with reference to the drawings.

However, the embodiments of the present invention may be modified into various forms, and the scope of the present invention is not construed as being limited to the embodiments described below. The embodiments of the present invention are provided so that those skilled in the art can understand the present invention and the shapes and the like of elements shown in the drawings are exemplarily shown to emphasize a clearer description.

As shown in FIGS. 1 and 2, the micro-fabric embossed sheet 10 according to the present invention comprises a micro-fabric embossed sheet 10 on which a micro-fabric emboss 15 is formed.

The fine embossed embossed sheet 10 is made of a main raw material of the product and has a plate shape having a constant thickness (for example, 3 to 15 mm).

Rubber or plastic materials are used as raw materials for the micro-fabric embossed sheet 10. That is, the micro-fabric embossed sheet 10 uses a rubber material to manufacture a product or a plastic material according to a product.

The rubber used as the micro-fabric embossed sheet 10 in the above is an elastic material constituting a polymer of isoprene, which means a natural or synthetic rubber modified by chemical treatment in order to increase useful properties (toughness and corrosion resistance). Further natural rubber can be rubber obtained from the hevea brasiliensis tree, guayule bush parthenoim argentatum and sapotaceae tree, while the synthetic rubber contains hardening (BR), polyisoprene rubber (IR), styrene-butadiene rubber (SBR), nitrile rubber (NBR), butyl rubber (IIR), an ethylene-propylene terpolymer (EPDM), a silicone rubber, a neoprene rubber, a polysulfide, a polyacrylate rubber, an epichlorohydrin rubber, a fluoroelastomer (FDM), a chlorinated polyethylene (CSM) Butyl or bromobutyl (BIIR), chlorinated polyethylene rubber (CPE), polyurethane, thermoplastic rubber, chlorinated natural rubber, cyclized rubber, and combinations thereof.

The micro-fabric embossed sheet 10 is formed by insert injection using a metal mold. Specifically, the micro-fabric embossed sheet 10 is formed by injecting a raw material such as rubber or a plastic material into a mold reflecting the thickness or shape of the product and injecting the insert.

The fine embossed embossed sheet 10 is heated to a predetermined temperature (1 to 3 minutes) at room temperature (about 1 to 3 minutes) after the raw material is injected, So as to form a hard solid micro-fabric embossed sheet 10.

The thickness of the fine embossed embossed sheet 10 is about 3 to 15 mm, and the thickness of the fine embossed embossed sheet 10 is determined depending on the kind of the raw material used for the embossed fine embossed sheet 10 . That is, the micro-fabric embossed sheet 10 generally has a thicker sheet of a product using a plastic material than a product using a rubber material.

The fine fabric embossed sheet 10 is formed with fine embossed embossments 15 on both sides or on one side of the upper and lower sides. That is, the embossment 15 may be formed on all of the upper and lower surfaces of the microfabric embossed sheet 10, and the embossment 15 may be formed on only one of the upper and lower surfaces of the microfabricated embossed sheet 10 It is possible.

The embossing 15 is formed simultaneously on the surface of the upper and lower surfaces by injecting the insert of the raw material of the embossed embossed sheet 10. That is, the micro-fabric embossed sheet 10 is formed by attaching a Teflon-coated fabric sheet 20 to either or both sides of the upper and lower surfaces of the inside of the mold, injecting the raw material of the microembossed embossed sheet 10 into the mold, So that the embossing of the Teflon coated fabric sheet 20 is transferred.

As shown in FIGS. 2 and 3, the embossment 15 is formed by repeatedly forming protrusions and recesses on the surface of the micro fabric embossed sheet 10, so that the embossed micro emboss 15, Respectively.

The embossing 15 is formed so that the cross section of the embossing 15 along the longitudinal direction is formed in a circular arc, a quadrangle, a trapezoid,

The size of the embroidery 15 in the micro fabric embossed sheet 10 is 0.01 to 1 mm. Furthermore, it is preferable that the emboss 15 of the micro fabric embossed sheet 10 has a size of about 0.3 to 0.7 mm.

4 shows another embodiment according to the arrangement shape of the embossment 15. The microembossed embossed sheet 10 can be manufactured by variously changing the arrangement shape of the embossments 15. [

For example, the micro-fabric embossed sheets 10 may be formed such that the embossings 15 are arranged side by side at regular intervals in the transverse and longitudinal directions as shown in FIG. 4 (a) The embossed sheets 10 can be formed such that the embossings 15 are arranged at regular intervals in the transverse and longitudinal directions, but are arranged in an offset manner as shown in FIG. 4 (b).

Although not shown in the drawing, the emboss 15 of the microfabric embossed sheet 10 can be formed in various configurations.

The Teflon-coated fabric sheet 20 used to form the emboss 15 of the micro-fabric embossed sheet 10 is formed of a thin fabric material.

As shown in FIG. 5, the Teflon coated fabric sheet 20 is coated with Teflon 23 to form a thin film on the surface.

The Teflon 23 may be formed over the entire surface of the Teflon-coated fabric sheet 20 or may be formed by coating the Teflon 23 on only one side of the Teflon-coated fabric sheet 20 that is in contact with the microembossed embossed sheet 10 Do.

The Teflon coated fabric sheet 20 can be easily separated from the mold after the embossed sheet 10 is formed by molding the Teflon coated fabric sheet 20 as described above. It is possible to remove it.

6 and 7, a method for fabricating a micro fabric embossed sheet according to the present invention includes the steps of preparing a Teflon coated fabric sheet 20 and a Teflon coated fabric sheet 20 S20), a raw material injection step S30, an embossing step S40, and a Teflon coated fabric sheet 20 removing step S50.

In step S10 of preparing the Teflon-coated fabric sheet 25, a sheet made of a fabric material is prepared, and a fabric sheet 21 having fine embosses formed on one side of the sheet is prepared.

As the material of the fabric sheet 21, it is preferable to use a foamed PVC fabric sheet produced by processing yarn such as nylon, polyester, cotton, glass fiber or the like.

The fabric sheet 21 is coated with a Teflon 23 so as to form a thin film on the surface thereof to prepare a Teflon coated fabric sheet 20 coated with Teflon.

In the step of laminating the Teflon-coated fabric sheet 20, the prepared Teflon-coated fabric sheet 20 is laid on the mold 5 to be laminated.

The Teflon-coated fabric sheet 20 is laminated on the mold 5, and is laid on both sides or one side of the upper and lower surfaces of the mold 5. That is, the Teflon-coated fabric sheet 20 is formed by laminating the Teflon-coated fabric sheet 20 according to the embossed sheet 10 to be formed, either by molding the embossed sheet on one side or by molding the embossed sheet on both sides.

For example, the Teflon-coated fabric sheet 20 is laminated so as to be positioned on the upper surface or the lower surface of the mold 5 to form an emboss 15 on only one side of the embossed sheet 10, It is possible to form the embossment 15 on both sides of the embossed sheet 10 so as to be positioned on both the upper and lower surfaces.

In the material injecting step (S30), the raw material is injected toward the inner molding space of the mold (5).

In order to inject the raw material into the mold 5, the raw materials are injected in a state where the upper and lower molds 5 are aligned with each other to form the embossed sheet 10.

The raw material for forming the embossed sheet 10 is formed by injecting rubber or plastic material. That is, the embossed sheet is formed by molding the embossed sheet according to the product so that the embossed sheet can be formed of a rubber material or a plastic material.

The embossed sheet 10 is formed by insert injection as the raw material is injected into the mold 5.

Since the raw material for forming the embossed sheet 10 maintains a state of being heated at a predetermined temperature, a state capable of being formed when the resin is injected toward the mold 5 is maintained, and a sufficient amount of the raw material is injected into the mold 5 It is preferable to form the embossed sheet in the shape of the molding space.

After the raw material is injected, the material is cured at room temperature for about 1 to 3 minutes so as to be solidified by the embossed sheet 10 to form a solid phase.

In the embossing step S40, the embossed sheet 10 is cured in a state where the raw material is injected into the mold 5 to form the embossed sheet 10, .

The embossment 15 is simultaneously formed with the embossed sheet 10 by insert injection using the embossed sheet 10 as a raw material. That is, when the embossed material 15 is injected into the mold 5, the embossed material 15 is transferred onto the surface of the embossed sheet 10 to which the Teflon coated fabric sheet 20 abuts, Is transferred to form a micro fabric emboss on the surface of the embossed sheet 10.

The emboss 15 may be formed by forming the Teflon-coated fabric sheet 20 on only one of the upper and lower surfaces of the embossed sheet 10, It is possible to form the embossment on both sides of the embossed sheet 10 by providing the Teflon coated fabric sheet 20 on both the upper and lower surfaces.

The size and arrangement shape of the embossment 15 are determined according to the Teflon-coated fabric sheet 20.

The emboss 15 of the embossed sheet 10 is formed by selectively applying the Teflon coated fabric sheet 20 within a range of 0.01 to 1 mm in diameter. The emboss 15 of the embossed sheet 10 is preferably formed to a thickness of about 0.3 to 0.7 mm.

In the step of removing the Teflon-coated fabric sheet 20 (S50), the Teflon-coated fabric sheet is removed after separating the embossed cured sheet from the mold.

The embossed sheet 10 from which the Teflon-coated fabric sheet 20 has been removed removes burrs and the like that are formed during the molding process, thereby completing the fabrication of the embossed sheet 10.

That is, according to the micro-fabric embossed sheet of the present invention having the above-described structure and the method of manufacturing the micro-fabric embossed sheet according to the present invention, since the fabric sheet on which the micro emboss is formed is used, uniform and regular embossing is efficiently formed on the sheet, It is possible to do.

In addition, since the present invention can be applied by replacing a fabric sheet according to a product, it is possible to change the size and arrangement shape of various embosses while using the molds intact, thereby facilitating the operation and drastically reducing the processing speed and process cost It is possible.

Further, since the Teflon thin film is formed on the fabric sheet, the present invention can provide excellent mold releasing efficiency, easily separate the product from the mold, and easily remove the fabric sheet from the product.

Further, since the insert is injected in the process of manufacturing the sheet, it is possible to efficiently form the emboss in various sheet products by applying various raw materials.

Although the preferred embodiments of the micro-fabric embossed sheet and the method of manufacturing the same according to the present invention have been described above, the present invention is not limited thereto, and various modifications may be made within the scope of the claims and the accompanying drawings. And this is also within the scope of the present invention.

10: emboss sheet 15: emboss
20: Teflon coated fabric sheet 21: Fabric sheet
23: Teflon

Claims (7)

delete delete delete delete Preparing a Teflon coated fabric sheet having a fabric embossing size of 0.01 to 1 mm in size;
Depositing the Teflon coated fabric sheet on both sides or one side of the upper and lower surfaces of the mold;
Injecting a rubber or plastic raw material so that an embossed sheet is formed in an inner molding space of the mold;
Forming a fabric emboss on the surface of the embossed sheet by curing the embossed fabric sheet to transfer the fabric embossed on the surface of the embossed sheet to which the Teflon-coated fabric sheet is in contact with the raw material;
And separating the embossed sheet from the mold and removing the Teflon coated fabric sheet. delete delete

Images