KR101627137B1 - Turn-up Paper Tape and Manufacturing Method thereof - Google Patents

Abstract

Disclosed are a turn-up paper tape and a manufacturing method thereof. According to an aspect of the present embodiment, provided is a turn-up paper tape as a turn-up paper tape for cutting a paper web, piled up by spreading slit raw paper with an adhesive and folding the slit raw paper. The turn-up paper tape is piled up a plurality of times. According to another aspect of the present embodiment, provided is a manufacturing method of the turn-up paper tape as a manufacturing method of a turn-up paper tape for cutting a paper web, comprising: a process of gluing to spread an adhesive on slit raw paper; a process of piling up by folding the slit raw paper; and a first drying process to dry the moisture transferred from the gluing process. The present invention provides a turn-up paper tape with a high strength than an ordinary turn-up paper tape and a manufacturing method of the turn-up paper tape with a high strength.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001]

This embodiment relates to a zone and a manufacturing method thereof. More particularly, to a paper web cutting zone for limiting a paper web to a predetermined length in a papermaking process and a method of manufacturing the paper web.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

In the papermaking process, paper is wound around a spool and is formed and formed into a state of large webs.

Paper production is a continuous process. In this continuous process, the paper can not be wound around the spool at infinity. Therefore, the spool that winds the paper is replaced at every fixed length. This operation is called turn-up.

When doing these turn-up operations, the zone can be a paper web cut paper tape that cuts paper webs of a predetermined size and length by a diagonal line, and allows the cut paper to rewind to the next spool.

At this time, the cut paper is continuously wound as a new paper web attached to the spool due to the electrostatic force of the spool whose surface is covered with rubber.

The strength of the zone used here is important. If the strength is weak, the paper web cutting process may be interrupted due to the power of the paper web being pulled down due to the failure of the turn-up.

The present embodiment is intended to provide a zone that is stronger than a general zone.

The present embodiment is also intended to provide a method of manufacturing a high strength zone.

According to an aspect of the present invention, there is provided a paper web cutting zone, wherein the zone is formed by applying a slitted raw paper with an adhesive and folding the slitted raw paper by stacking, Wherein a plurality of layers are stacked.
According to another aspect of the present invention, there is provided a paper web cutting zone, wherein the paper web is formed by applying a slitted raw paper with an adhesive, folding the slit raw paper on the basis of the slitting, Wherein the zones are stacked a plurality of times, and the stacked heights and widths of the zones are in the range of 1:12 to 1:29, the valleys parallel to the longitudinal direction of the zone are formed, An epoxy resin or an acrylic emulsion or a cyanoacrylate or a cationic starch.

According to another aspect of the present invention, there is provided a method of manufacturing a paper web cutting zone, comprising: a gluing process of applying an adhesive to a slit paper; A laminating process of folding the slit sheet; And a first drying step of drying the moisture transferred from the gluing process.
According to another aspect of the present invention, there is provided a method of manufacturing a paper web cutting zone, comprising: a gluing process of applying an adhesive to a slit paper; A stacking step of folding the slit on the basis of the slit; And a first drying step of drying the moisture transferred from the gluing process, wherein the gluing process and the laminating process are performed a plurality of times to form a trough parallel to the longitudinal direction And the height and the width of the zone are 1:12 to 1:29.

INDUSTRIAL APPLICABILITY As described above, according to the present embodiment, it is possible to provide a zone where the paper web can be easily cut and the strength is high, and a manufacturing method thereof.

FIG. 1 is a conceptual diagram showing the operation principle of a zone according to an embodiment of the present invention.
Fig. 2 is a conceptual diagram showing the operation principle of a zone according to an embodiment of the present invention.
3 is a perspective view illustrating a zone according to an embodiment of the present invention.
4 is a front view showing a folding method of a zone according to an embodiment of the present invention.
5 is a front view showing a modification of the method of folding a zone according to an embodiment of the present invention.
6 is a conceptual diagram illustrating a method of manufacturing a zone according to an embodiment of the present invention.
7 is a block diagram showing a method of manufacturing a zone according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as 'first', 'second', etc. may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature or order of the constituent elements. Throughout the specification, when an element is referred to as being "comprising" or "comprising", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise .

In addition, '... Quot ;, " part, " and the like denote a unit for processing at least one function or operation, which may be implemented by hardware, software, or a combination of hardware and software.

1 and 2 are conceptual diagrams illustrating the principle of operation of a zone according to an embodiment of the present invention.

1 and 2, a description will be given of a zone 10 according to an embodiment of the present invention.

The zone 10 according to the present embodiment can not infinitely wrap the paper in one spool 20 in the continuous paper production process as described in the background art. It is necessary to perform a turn-up operation to replace the spool 20, and the zone 10 is used to cut paper that is wound on the spool 20 during a turn-up operation.

Zone 10 is fed from zone feeder 50 and is attached to a new spool at the same time as paper web 30 is cut due to the electrostatic forces that occur on spool 20 and paper web 30. The width of a typical paper web 30 is 5 m to 8 m. When the paper web 30 is turned up when the spool 20 rotates about its axis, the paper web 30 is cut obliquely so that the paper web 30 per unit area 10 consumes approximately 8 m to 12 m do.

3 is a perspective view showing a zone 10 according to an embodiment of the present invention.

The zone 10 according to the present embodiment is formed by applying slitted raw paper with an adhesive and folding the slit raw paper by folding. Lamination of the zone 10 according to the present embodiment can be performed plural times. For example, referring to FIG. 3, the zone 10 according to an embodiment of the present invention may have a three-layer laminated structure by folding the slit raw paper twice.

Also, the stacked height H and the ground width W of the zone 10 according to the present embodiment are characterized by a ratio of 1:12 to 1:29.

The ratio of the height H to the width W of the zone 10 is very important. If the ratio of the height (H) to the width (W) is too large, the zone (10) hardly adheres to the spool (20). Even if the ratio of the height H to the width W is too small, the strength of the zone 10 is lowered and the zone 10 is easily cut off.

The slitted fabric constituting the zone 10 is very long and thin in the longitudinal direction (L). Here, the slitting means that the raw material, which is the raw material of the zone 10, is trimmed so as to be suitable for manufacturing the zone 10 according to the present embodiment, and its length and width are free. For example, the slitted yarn may have a width of from about 40 mm to about 100 mm.

It is preferable that the width of the zone 10 in which slit raw paper is stacked is 16.5 mm to 20.5 mm. If the width of the zone 10 is too small, the cutting force on the paper web decreases. On the other hand, if the width is too large, it is difficult to wind the zone 10 along the spool 20. As described later, when the paper web is closed, the zone 10 is also crushed together. If the width of the zone 10 is too large, a problem of clogging of the crusher may occur.

In addition, not only the width of the zone 10 but also the height H of the zone 10 is important for the same reason as the above-mentioned width. The height H of the zone 10 of the present embodiment may be approximately 0.7 mm to 1.3 mm.

The ratio of the height H to the width W corresponds to the preferred width W of the present embodiment from 16.5 mm to 20.5 mm and a value of 1:12 to 1:29 is obtained Except for decimal places.

Therefore, the zone 10 of the present embodiment is intended to have a ratio of the stacked height H to the width W of 1:12 to 1:29.

The fabric constituting the zone 10 may be a Kraft paper. Kraft paper is a type of chemical pulp used for packaging cement, fertilizer, sugar, etc., and usually has a higher tensile strength, tear strength and elongation than other tributaries and corresponds to pulp having a long fiber length.

For example, the kraft paper of the present embodiment may have a tear strength of 107g, a width of 122g, and a tensile strength of 7.6kg / 15mm or more and a width of 3.8kg / 15mm or more on the basis of 90g / m ² basis weight. In addition, the kraft paper of the present embodiment may be formed by adding fine wrinkles to kraft paper at the time of production, thereby increasing the elongation.

Referring again to FIG. 1, a trough parallel to the longitudinal direction of the belt 10 may be formed on the belt 10 according to the present embodiment. This will be described later in detail with reference to FIG.

Next, lamination and adhesion of the zone 10 according to the present embodiment will be described in detail.

4 is a front view showing a folding method of the zone 10 according to an embodiment of the present invention. 5 is a front view showing a modification of the folding method of the zone 10 according to the embodiment of the present invention.

In the zone 10 of this embodiment, the paper is laminated and fixed firmly using an adhesive. The use of a plurality of sheets of paper rather than a single sheet of paper can improve the strength of the belt 10.

The lamination of the zone 10 of the present embodiment can be performed by folding one slit raw paper. Referring to FIG. 4, folding according to the present embodiment is performed by folding two outer sides A and A 'into one central plane B when the width W' of the slit is roughly equal to the width, . ≪ / RTI > 5, the folding of the present embodiment causes the two outer sides A and A 'to be spaced apart from each other by two adjacent center planes W' (B, B ').

Adhesive is important in order to obtain a high strength zone 10 in the laminated base fabric according to the present embodiment. The adhesive of this embodiment may be an epoxy resin or an acrylic emulsion or a cyanoacrylate or a catechin starch.

The bonding of this embodiment may be performed simultaneously with the lamination of the slit raw paper.

Epoxy resins are synthesized by condensation polymerization of bisphenol A and epichlorohydrin. They have strong adhesion and are used for bonding ceramics, glass, and metal plates. Good chemical resistance and heat resistance.

The acrylic emulsion is one of the emulsion type adhesives. Acrylic emulsions are generally used as binders for bonding fibers or powders, or widely used for paints, but they can also be used as a paste.

The cyanoacrylate is the main component of the instant adhesive, and when it comes into contact with air, it causes a polymerization reaction by moisture in the air to become a polymer and adhere.

Kachichi starch is generally used for wallpaper adhesion, and the strength can be improved by applying cacophony starch to the zone (10) and making it cationic. Here, the term "catecholization" refers to a chemical operation in which a substance having no + charge (positive charge) has a positive charge. The paper is usually charged to a charge (negative charge), so that the cation is converted to a state that is easy to bond with + ions through cationization.

Using the adhesives described above, the zone 10 of the present embodiment increases the tensile strength by about 10 times or more than a single slitted sheet of paper. It is therefore suitable for use in paper mills in high temperature, high pressure and high tensile environments.

Hereinafter, a method of manufacturing the paper web cutting zone 10 will be described.

The method of manufacturing the zone 10 according to an embodiment of the present invention includes a gluing process of applying an adhesive to a slit paper; A laminating process of folding the slit sheet; And a first drying step of drying the moisture transferred from the gluing process.

As shown in FIGS. 4 and 5, the folding method of the present embodiment may be a process of folding by the third or fourth division. Here, the stacked height H and the ground width W of the zone 10 are formed such that the ratio thereof is 1:12 to 1:29.

The gluing process and the laminating process of this embodiment can be performed a plurality of times. For example, a primary gluing process and a lamination process may be performed, followed by a secondary gluing process and a lamination process.

In the zone 10 manufacturing method of the present embodiment, the first drying process may be a process of contacting and drying the glued raw paper on the long hot plate. Alternatively, the first drying process of this embodiment may be performed by heating and drying using a heater installed at one side of the paper tube, while winding the glued paper on the paper tube.

6 is a conceptual diagram illustrating a method of manufacturing a zone according to an embodiment of the present invention.

The slitted substrate is produced in the zone 10 of this embodiment through a series of transport processes (arrow directions) shown in Fig. The manufacturing method of the zone 10 of the present embodiment may be performed by extracting a part of the process in the transfer process shown in FIG.

Referring to Fig. 6, the zone 10 passes through the original front glue G1 in a slurry state. In the front glue part G1, the prepared adhesive is sprayed to adhere the laminated raw paper, and the slit raw paper is folded by the folding machine to laminate the paper while reducing the width. The adhesive of this embodiment is sprayed through a pneumatic spray nozzle and applied evenly over the slit paper.

In the forward glue part G1, the gluing process and the lamination process may be performed at the same time and may be alternately performed with a slight time difference. As described above, the gluing process and the lamination process can be performed at least a plurality of times. Further, a plurality of stacking processes and a plurality of gluing processes may be performed at an intersection.

The zone 10 having passed through the front glue part G1 is conveyed to the contact drying part G2. The contact drying unit G2 serves to dry the transferred moisture through the gluing operation by passing the zone 10 over the long thermal metal plate. The temperature of the long heat plate may be approximately 80 [deg.] C to 100 [deg.] C. The thermal metal plate may be any of those having excellent thermal conductivity. The time for evaporating the moisture of the adhesive through the above-mentioned contact drying process is shortened, so that the production speed of the zone 10 of the present embodiment is improved, and the adhesive property of the adhesive is improved.

The zone 10 having passed through the contact drying unit G2 can be conveyed to the rear gluing unit G3. The gluing process and the lamination process can be simultaneously performed in the rear gluing section G3 as in the case of the front gluing section G1. Here, a method is employed in which the gluing process is performed by spraying an adhesive through a pneumatic spray nozzle, and the gluing process is performed by a method in which the gluing process is performed in the front gluing unit G1 Take the folding method as well. Since the width of the zone 10 is gradually reduced, the jetting width of the jetting nozzle can be adjusted.

The zone 10 having passed through the rear gluing section G3 can be transferred to the press forming section G4. The press-formed portion G4 forms a trough 11 parallel to the longitudinal direction of the zone 10. The press-formed portion G4 may be a press molding machine commonly used in machine tools. Assuming a press molding machine having irregularities opposed to the trough 11, the press molding machine can rise and / or descend to form the trough 11 when the trough 10 passes through the press forming portion G4. Alternatively, the press forming machine having unevenness may form the trough 11 with a certain height so that the trough 10 can pass through.

The zone (10) can be transferred to the heating drying section (G6). The heating and drying unit G6 refers to a part for evaporating the water introduced while passing through the rear glue part G3. The heater 70 is disposed at one side in the heating drying section G6 to radiate heat, and thereby to dry the zone 10. [ Here, the temperature of the heater can be set to approximately 100 [deg.] C to 150 [deg.] C.

The winding section G5 corresponds to the step of commercializing the zone 10 of the present embodiment. At the end of the series of processes described above, the winding unit G5 can be provided to improve the production speed of the zone 10.

In FIG. 6, the processes of the heating drying unit G6 and the winding unit G5 are shown to be performed at the same time, but they may be separate processes depending on the case. For example, it may be a process of heating after winding, or a process of winding after heating.

7 is a block diagram showing a method of manufacturing the zone 10 according to another embodiment of the present invention.

According to another embodiment of the present invention, a method of fabricating a zone 10 includes a gluing process of applying an adhesive to a slurry; A lamination process of folding the slit raw paper; A first drying process for drying the water transferred from the gluing process; Performing a gluing process and a laminating process after the first drying process; A press forming process for forming a valley parallel to the longitudinal direction of the zone; And a second drying step of heating and drying the paper using the heater 70 installed on one side of the winding paper tube 60 while winding the glued paper on the winding paper tube 60 after the press forming process have.

Here, the gluing process and the laminating process are performed before and after the first drying process. First, the gluing process and the laminating process are performed, followed by the contact drying process. Thereafter, the gluing process and the laminating process are further performed, and a press forming process is performed to form a trough parallel to the longitudinal direction of the zone 10.

In the first drying process, since the gluing process and the laminating process are further performed after the first drying process, the moisture transferred in the gluing process is not completely dried to ensure flexibility and fluidity of the zone 10. In the second drying process, radiant heat is used for commercialization of the zone (10). Heat penetrates deeper into the laminated portion of the zone 10 to complete drying.

Thereafter, heating and drying are performed using a heater 70 installed on one side of the paper tube while winding the paper stacked on the winding paper tube 60. The winding core tube (60) serves to wind the zone (10) to commercialize the zone (10). Since the first drying process and the second drying process are performed, the moisture transferred during the gluing process can be effectively removed, and since the pressing process is also performed between the processes, the strength of the zone 10 can be further increased.

For example, the average tensile strength of the zone 10 of the present embodiment through the above process can be improved to approximately 170 kg / mm ² to 200 kg / mm ² .

According to the present embodiment, a zone 10 having a high strength can be made, and an improvement in production speed can be expected in the process of manufacturing the zone 10 having high strength through the series of processes.

Although it is described in FIG. 7 that the processes S710 to S760 are sequentially executed, this is merely illustrative of the technical idea of the embodiment of the present invention. In other words, those skilled in the art will understand that one skilled in the art will be able to change the order described in FIG. 6 without departing from the essential characteristics of an embodiment of the present invention, or to execute one of the steps S710 to S760 It should be noted that FIG. 7 is not limited to the time-series order, since various modifications and changes may be made by executing the above-described processes in parallel.

The foregoing description is merely illustrative of the technical idea of the present embodiment, and various modifications and changes may be made to those skilled in the art without departing from the essential characteristics of the embodiments. For example, the zone 10 of the present embodiment is not limited to paper web cutting, and can be used for cutting various members.

Therefore, the present embodiments are to be construed as illustrative rather than restrictive, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: Zone
11: Goals
20: spool
30: Paper web
50: Zone feeder
60: winding branch pipe
70: heater
G1: front glue
G2: Contact Dryer
G3: rear glue
G4: Press forming part
G5:
G6: Heating and drying section

Claims (15)

In a paper web cutting area,
The zone is formed by applying a slitted raw paper with an adhesive,
And stacking the slit by folding the slit on the basis of the slit,
The zones are stacked a plurality of times,
The stacked height and width of the zone are in the range of 1:12 to 1:29,
A valley parallel to the longitudinal direction of the zone is formed,
Wherein the adhesive is an epoxy resin or an acrylic emulsion or a cyanoacrylate or a cationic starch. delete delete delete The method according to claim 1,
Characterized in that said fabric is a Kraft fabric. The method according to claim 1,
Wherein the height of said zone is between 0.7 mm and 1.3 mm. The method according to claim 1,
Wherein the bed has a width of 16.5 mm to 20.5 mm. A method for producing a paper web cutting zone,
A gluing process of applying the adhesive to the slurry;
A stacking step of folding the slit on the basis of the slit; And
And a first drying step of drying the moisture transferred from the gluing process,
The gluing process and the laminating process are performed a plurality of times,
Further comprising a press forming step of forming a valley in parallel with the zone in the longitudinal direction
Wherein the stacked height and width of the zone are in the range of 1:12 to 1:29. delete delete 9. The method of claim 8,
Wherein the first drying process is a process of contacting and drying the glued raw paper on a long hot plate. 9. The method of claim 8,
Wherein the first drying step comprises heating and drying using a heater installed on one side of the winding paper tube while winding the glued paper on the winding paper tube. delete delete 9. The method of claim 8,
After the press molding process,
And a second drying step of heating and drying using a heater installed on one side of the winding paper tube while winding the glued paper on the winding paper tube.

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