KR100764021B1 - Sheet for file cover, manufacturing method and apparatus of the same - Google Patents

Abstract

A sheet for a file cover, a manufacturing method and a device thereof are provided to improve the texture and to express various designs by forming a fabric layer. A sheet for a file cover is composed of a sheet type synthetic resin layer(10) and a fabric layer(20) attached on the synthetic resin layer. The fabric layer is partially buried in the synthetic resin layer. In particular, wefts(22) or warps(21) of the fabric layer adjacent to the synthetic resin layer are buried in the synthetic resin layer. The synthetic resin layer is made of one of PP(Polypropylene), PE(Polyethylene), HDPE(High Density Polyethylene), ethylene vinyl acetate, and LLDPE(Linear Low Density Polyethylene). The fabric layer is made of one of cotton, natural silk, artificial silk, acryl, and nylon.

Description

Sheet for file cover, manufacturing method and apparatus therefor {sheet for file cover, manufacturing method and apparatus of the same}

1 is a perspective view of a file cover sheet according to an embodiment of the present invention.

Figure 2 is an enlarged cross-sectional view of the file cover sheet according to an embodiment of the present invention.

3 is a perspective view of a pile using a sheet for file cover according to an embodiment of the present invention.

4 is a schematic configuration diagram of an apparatus and method for manufacturing a file cover sheet according to an embodiment of the present invention.

FIG. 5 is a perspective view of the die of FIG. 4. FIG.

<Explanation of symbols for main parts of the drawings>

10: synthetic resin layer 20: fabric layer

21: slope 22: weft

15: file cover 40: extrusion molding machine

50: die forming 60: roll of paper feeding

70: sheet forming roll 80: cooling roll

41: hopper 42: screw

43: motor 44a: synthetic resin

44b: molten synthetic resin 44c: primary sheet

44d: secondary sheet 44e: final sheet

50: die forming 60: roll of paper feeding

61: woven paper 70: sheet forming roll

71: lower roll 72: upper roll

73: direction change roll 80: cooling roll

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet for sheet covering, a method and a device for manufacturing the same, and more particularly, to a sheet for sheet covering, a manufacturing method and a device for enabling a texture improvement, prevention of correction, and various designs.

Generally, the files used to collect papers are paper files and resin files. Compared to paper files, synthetic resin files are used a lot because they have excellent durability.

Synthetic resin files can be produced in various colors and have a particularly clean aesthetic. However, due to the nature of the material, synthetic resin piles have a cold texture compared to paper or textile paper, and generate static electricity due to high chargeability.

Static electricity generated on the surface attracts dust from the surroundings and contaminates the appearance of the resin pile.

Therefore, there is a demand from the consumer to improve the surface texture of the synthetic resin pile and prevent static electricity and to produce more diverse designs.

In addition, the synthetic resin file is to print a variety of shapes on the surface, in this case, due to long-term use, the printed shape is partially worn to have a feeling of overall messy.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a file cover sheet, a manufacturing method and a device for enabling a texture improvement, prevention of correction, and various designs.

The file cover sheet according to an embodiment of the present invention may include a synthetic resin layer in a sheet state and a fabric resin layer attached to the synthetic resin layer.

The fabric layer may be partially embedded in the synthetic resin layer. That is, the fabric layer may be formed by filling the synthetic resin layer of the weft yarn adjacent to the synthetic resin layer of the warp and weft yarn. The fabric layer may be formed by embedding a slope in the synthetic resin layer.

The synthetic resin layer may be formed of one of polypropylene, polyethylene, high density polyethylene, ethylene vinyl acetate, and linear low density polyethylene.

The fabric layer may be formed of one of cotton, natural silk, artificial silk, acrylic and nylon.

In addition, the pile cover sheet according to an embodiment of the present invention, the first layer formed in a sheet state by the synthetic resin material, and attached to the first layer, formed of one of paper, nonwoven fabric, synthetic leather and natural leather It may comprise a second layer to be.

In addition, the pile cover sheet manufacturing apparatus according to an embodiment of the present invention, an extrusion molding machine for melting and extruding a synthetic resin, the primary molding for the molten synthetic resin extruded from the extrusion molding machine connected to the extrusion molding machine in a sheet state Molding die, a fabric paper supply roll for supplying the fabric paper to attach the fabric paper to the synthetic resin sheet of the high temperature state first molded in the molding die, while pressing the synthetic resin sheet and the fabric paper to adjust the thickness to the sheet state 2 And a cooling roll for cooling the sheet compressed through the sheet forming roll and the sheet forming roll.

The molding die may be elongated in a direction crossing at right angles to the discharge direction.

In addition, the pile cover sheet manufacturing method according to an embodiment of the present invention, the melt / extrusion step of melting and extruding the synthetic resin, the primary molding step of primary molding the extruded high temperature synthetic resin in the sheet state, supplying the fabric paper The fabric paper supply step, and the primary molded synthetic resin sheet may be pressed to the fabric paper, the secondary molding step of forming the compressed sheet in a second, and the cooling step for cooling the secondary molded sheet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

1 is a perspective view of a file cover sheet according to an embodiment of the present invention, Figure 2 is an enlarged cross-sectional view of the file cover sheet according to an embodiment of the present invention.

Referring to these figures, the sheet for sheet cover of the present embodiment includes a synthetic resin layer 10 and a fabric paper layer (20). The synthetic resin layer 10 is a layer formed in a sheet state by melting a synthetic resin material, and has a shape retention and durability of the pile cover sheet.

The synthetic resin layer 10 may be formed of polypropylene (P.P), polyethylene (P.E), high density polyethylene (HDPE) ethylene vinyl acetate (E.V.A) or linear low density polyethylene (LLDP).

Since such a synthetic resin material is melted at a relatively low temperature and solidified at room temperature, it can be easily molded into a sheet state. Polypropylene is melted at 120 ° C and can be extruded.

In addition, the fabric paper layer 20 is attached to the synthetic resin layer 10, to enable the texture improvement, antistatic and various design of the file cover sheet. When using a woven paper forming a variety of designs, the design of the file cover sheet can be implemented in more various ways.

The fabric layer 20 may be formed of fabric paper woven from cotton, natural silk, artificial silk, acrylic or nylon fibers. This fabric layer 20 also enables a strong adhesion with the synthetic resin layer 10 while improving the surface texture.

In order to form a firm compression structure of the fabric layer 20 and the synthetic resin layer 10, the fabric layer 20 is attached in a structure that is partially embedded in the synthetic resin layer (10). In addition, the fabric layer 20 forms a structure that protrudes more than the surface of the synthetic resin layer 10 to maintain the improved texture of the pile cover sheet.

That is, the texture of the pile cover sheet may be determined by the portion of the fabric layer 20, more specifically, the portion of the fabric layer 20 protruding from the surface of the synthetic resin layer 10.

Since the fabric layer 20 is formed by the fabric weaving the warp 21 and the weft yarn 22, the weft yarn 22 adjacent to the synthetic resin layer 10 of the warp 21 and the weft yarn 22, the synthetic resin layer It is formed by embedding in (10).

In addition, as the weft yarn 22 is embedded in the synthetic resin layer 10, the warp yarn 21 may also be partially embedded in the synthetic resin layer 10.

FIG. 2 illustrates a structure in which the weft yarn 22 adjacent to the synthetic resin layer 10 is completely embedded in the synthetic resin layer 10 and the warp yarn 21 is partially embedded in the synthetic resin layer 10. In this case, the fabric paper layer 20 can maintain the excellent texture by the weft yarn 22 in a position far from the synthetic resin layer 10 and the inclined 21 protruding without being embedded.

In addition, the weft yarn located far from the synthetic resin layer may be partially embedded in the synthetic resin layer (not shown). In this case, the texture may be somewhat lower than the texture in the case where the weft of the distant position in the synthetic resin layer is not buried.

In addition, the pile cover sheet according to another embodiment of the present invention may be formed having a synthetic resin layer 10 as a first layer, and having a second layer pressed on the synthetic resin layer 10. Since the second embodiment is shown in the same structure as that of Fig. 1 of the first embodiment, the drawings relating to the second embodiment are omitted.

In this case, since the first layer is formed in the same manner as the synthetic resin layer 10 of the first embodiment, description thereof will be omitted. The second layer is formed of paper, nonwoven fabric, synthetic leather or natural leather attached to the synthetic resin layer 10.

This paper, nonwoven fabric, synthetic leather or natural area is formed in a sheet state unlike the warp weft of the woven paper of the first embodiment.

Therefore, the second layer is pressed in a surface contact state with the first layer formed of the synthetic resin layer 10. The adhesive force formed between the second layer and the first layer attached in surface contact with each other may be weaker than the adhesive force formed between the synthetic resin layer 10 and the fabric layer 20 having the buried structure as in the first embodiment. have.

Figure 3 is made of a sheet formed by pressing the synthetic resin layer 10 and the fabric resin layer 20 as described above, or a sheet formed by the adhesion of the first layer of the synthetic resin material and a sheet of paper, nonwoven fabric, synthetic leather or natural leather The file cover 15 is shown.

Since the synthetic resin layer 10 hardens in a molten state, the shape of the pile cover 15 made of the sheet is maintained, and the durability of the pile cover 15 is maintained.

On the other hand, the sheet made of a synthetic resin layer 10 and the fabric layer 20 in this way can be used as a pile cover 15 as shown in this embodiment, it can be used as a waterproof sheet in the construction site.

The manufacturing apparatus and manufacturing method which manufacture the sheet | seat used for such a pile cover 15 are demonstrated.

4 is a schematic configuration diagram of an apparatus and method for manufacturing a file cover sheet according to an embodiment of the present invention.

Referring to this figure, the sheet manufacturing apparatus for a pile cover is formed including the extrusion molding machine 40, the molding die 50, the textile paper supply roll 60, the sheet molding roll 70, and the cooling roll 80. .

The extrusion machine 40 includes a screw 42 and a motor 43 connected to the screw 42 so that the raw material supplied from the hopper 41, that is, the synthetic resin 44a can be melted and extruded at a high temperature.

Driven by the motor 43, the screw 42 rotates to extrude the molten synthetic resin 44b in the extrusion die 40 toward the molding die 50.

The molding die 50 molds the molten synthetic resin 44b extruded into the extrusion machine 40 into a primary sheet 44c.

To this end, the molding die 50 is connected to the extrusion molding machine 40 and has a structure corresponding to the shape of the primary sheet 44c to be molded.

For example, the molding die 50 is formed long in the direction crossing at right angles to the discharge direction of the molten synthetic resin 44b, thereby molding the molten synthetic resin 44b into the primary sheet 44c.

The primary sheet 44c of the synthetic resin material molded and discharged from the molding die 50 maintains a high temperature fluffy state.

On the other hand, together with molding the primary sheet 44c of the synthetic resin material, the textile paper supply roll 60 supplies the textile paper 61. The fabric paper 61 is attached to the synthetic resin primary sheet 44c in a high temperature state which is primary-molded in the forming die 50.

To this end, a sheet forming roll 70 is provided. The sheet forming roll 70 presses the primary sheet 44c and the woven paper 61 of the synthetic resin material to be supplied while adjusting the squeezed thickness of the primary sheet 44c and the woven paper 61 at a high temperature. It is configured to mold the car seat 44d.

For example, the sheet forming roll 70 has a lower roll 71 and an upper roll 72 which are molded once in its own, and the secondary sheet 44d formed by the lower roll 71 and the upper roll 72. The direction change roll 73 which changes the advancing direction of () is provided.

The secondary sheet 44d formed of the primary sheet 44c of the synthetic resin material and the woven paper 61 while passing through the sheet forming roll 70 is supplied to the cooling roll 80 and cooled.

The cooling rolls 80 are arranged in plural to cool the secondary sheet 44d formed while passing through the sheet forming rolls 70. In order to form a long cooling path of the secondary sheet 44d in a short manufacturing line, the cooling roll 80 is arranged in the vertical direction while traveling along the secondary sheet 44d traveling direction (for example, the first portion). , Second, third, and fourth rolls).

The final sheet 44e having passed through this cooling roll 80 may be processed in further steps by other devices, surface treatment devices, cutting devices and transfer devices arranged in connection with the cooling roll 80.

The method of manufacturing a file cover sheet using such a file cover sheet manufacturing apparatus is collectively described as follows.

Referring back to FIG. 4, the method for manufacturing a sheet for pile cover includes a melting / extrusion step (ST10), a first molding step (ST20), a fabric paper supply step (ST30), a second molding step (ST40), and a cooling step (ST50). It includes.

Melting / extrusion step (ST10) is carried out in the extrusion molding machine 40, the synthetic resin 44a is melted to extrude the synthetic resin 44b in a molten state.

The primary molding step ST20 is performed in the molding die 50, and primary molding the high-temperature synthetic resin 44b to be extruded in the state of the primary sheet 44c.

The fabric paper supply step (ST30) is carried out in the fabric paper supply roll 60, and supplies the fabric paper 61 to the primary sheet 44c of the primary molded synthetic resin material.

The secondary forming step ST40 is performed in the forming roll 70, and presses the fabric paper 61 to the primary sheet 44c of the primary molded synthetic resin material, thereby forming the compressed secondary sheet 44d in secondary form. do. At this time, the thickness of the secondary sheet 44d is determined, and the textile paper 61 is partially embedded in the primary sheet 44c of the synthetic resin material.

The cooling step ST50 proceeds in the cooling roll 8 and cools the secondary sheet 44d which is secondarily press-molded to maintain a high temperature state.

When the pile cover is manufactured from the sheet thus formed, the pile cover has strong durability by the synthetic resin layer 10, and also enables excellent texture and various designs by the fabric layer 20.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

As described above, according to the present invention, by forming a sheet having a synthetic resin layer and a fabric layer, there is an effect of enabling the texture improvement and various designs by the fabric layer.

Claims (10)

delete Synthetic resin layer in sheet state It includes a fabric paper layer attached to the synthetic resin layer, And said fabric layer is partially embedded in said synthetic resin layer. The method of claim 2, The fabric layer is pile cover sheet formed by filling the synthetic resin layer of the weft yarn adjacent to the synthetic resin layer of the warp and weft yarn. The method of claim 3, The fabric layer is a pile cover sheet formed by filling a slope in the synthetic resin layer. Synthetic resin layer in sheet state It includes a fabric paper layer attached to the synthetic resin layer, The synthetic resin layer is a pile cover sheet formed of one of polypropylene, polyethylene, high density polyethylene, ethylene vinyl acetate and linear low density polyethylene. The method of claim 2, The fabric layer is pile cover sheet formed of one of cotton, natural silk, artificial silk, acrylic and nylon. A first layer formed in a sheet state by a synthetic resin material and A file cover sheet attached to the first layer, the sheet cover comprising a second layer formed of one of paper, nonwoven fabric, synthetic leather and natural leather. Extrusion molding machine for melting and extruding synthetic resin, A molding die connected to the extruder and primary molding the molten synthetic resin extruded from the extruder into a sheet state; Woven paper supply rolls for supplying woven paper to attach the woven paper to the synthetic resin sheet of the high temperature state first molded in the molding die, A sheet forming roll for secondary molding in a sheet state by controlling the thickness while pressing the synthetic resin sheet and the fabric paper, and And a cooling roll for cooling the sheet compressed through the sheet forming roll. The method of claim 8, The molding die is a sheet cover sheet manufacturing apparatus is formed long in the direction perpendicular to the discharge direction. A melt / extrusion step of melting and extruding a synthetic resin, First molding step of primary molding the extruded high temperature synthetic resin in a sheet state, Textile paper feeding step of supplying textile paper, A second molding step of pressing the fabric paper on the first molded synthetic resin sheet, and secondly molding the compressed sheet; A method for manufacturing a sheet for a file cover comprising a cooling step of cooling the secondary molded sheet.

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