KR101544780B1 - paper tube has been formed film layer for preventing paper dust and method of manufacturing the same - Google Patents

Abstract

According to a core wherein a form is formed, a manufacturing method, and a manufacturing apparatus according to the present invention, an effect on reduction in a foreign material detect and a stepped pulley defect is gained by an elastic material, initial coiling is easy, and slipperiness between the core and a film does not occur, thereby increasing productivity and quality. Moreover, a method for forming an appearance of the core for coiling a sheet in the shape of a roll includes: a step of forming a cross-sectional adhesive layer on an outer circumferential face of the core; a step of warping the form around the outer circumferential face of the core on which the adhesive layer is formed and attaching the form thereon; and attaching a double-sided tape having a double-sided adhesive layer between both ends which the form warped around the core faces.

Description

[0001] The present invention relates to a paper tube having a film layer formed thereon and a method for manufacturing the paper tube,

The present invention relates to a paper tube having a film layer for preventing dust and a method of manufacturing the same, and more particularly, to a paper tube having a film layer on its inner circumferential surface in order to prevent a stiffness between a fixed shaft inserted in the center of the paper tube and an inner circumferential surface of the paper tube, And a method for manufacturing the same. 2. Description of the Related Art

Flexible materials such as paper, film or thin steel sheet are wound and supplied in the form of rolls. The core is present at the center of these rolls, serving as a center point at the time of initial winding and has a cylindrical shape for easy use.

In addition, the core has various materials depending on the environment such as paper, wood, plastic, metal, ceramics and the like, and generally, paper tubes made of paper are used in many places.

Particularly, a paper tube for a special purpose, which is mainly used for winding a very thin film of 5 to 30 탆, is subjected to a wax treatment so as to have a smooth peripheral portion, but there is a problem that fine particles unique to paper are found.

Further, when a sheet product (film, paper or the like) wound in a roll form into a paper tube is inserted by inserting a chuck into a paper tube, friction is generated between the inner peripheral surface of the paper tube and the chuck for fixing the paper tube.

There is a problem that a large amount of stake is generated due to the friction between the chuck and the paper tube.

In addition, due to the nature of the paper tube wound in the form of a roll, there is a problem in that the pressing mark due to the step at the initial end can not be avoided. This is due to the high cost functional film used for displays and semiconductors, This was a serious problem.

To solve these problems, many methods such as grooving and use of corrugated cardboard have been developed, but they have been insufficient to solve all of the above problems.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a paper tube having a film layer for preventing the formation of stains on the inner circumferential surface of the film.

It is another object of the present invention to provide a paper tube having a film layer for preventing the foreign material defect and step difference that occurs when the film is wound, and a manufacturing method thereof.

In order to accomplish the above object, according to the present invention, there is provided a method of manufacturing a branch pipe having a film layer for preventing stockage and a method of manufacturing the same, A first film layer forming step of winding a film on the outer surface of the first film layer to form a first film layer; a stratum formation step of winding a raw sheet diagonally on the outer circumferential surface of the first film layer to form a stratum; A forming step for increasing the surface quality and hardness of the paper tube, and a cutting step for cutting the paper tube formed through the forming step to a predetermined length.

The method may further include a second film layer forming step of forming a second film layer by winding the second film on the outer circumferential surface of the paper tube formed after the forming step.

In addition, the film may include at least one of acrylic, PE, PP, PU, and PET.

Further, the original is adhered to the outer surface of the first film layer by an adhesive.

The method may further include forming a foam layer on the outer circumferential surface of the paper tube by wrapping the foam after the cutting step.

As described above, according to the present invention, it is possible to prevent the occurrence of a stake on the inner circumferential surface of the film by forming a film layer on the inner circumferential surface of the paper tube, Loses.

According to the present invention, there is provided an effect of preventing a foreign material defect and a step defect occurring during the film winding by forming a foam layer on the outer circumferential surface of a paper tube, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a manufacturing process of a paper tube in which a film layer for preventing equity is formed according to the present invention; FIG.
FIG. 2 or FIG. 3 is a view showing a first film layer forming step in a manufacturing process of a paper tube having a film layer for preventing equity, according to the present invention. FIG.
FIG. 4 is a view illustrating a step of forming a layer in a manufacturing process of a paper tube having a film layer formed thereon for preventing the stock according to the present invention. FIG.
FIG. 5 is a flowchart showing another method of manufacturing a paper tube with a film layer for preventing the stock according to the present invention. FIG.
6 or 8 illustrate an embodiment produced by another method of producing a paper tube having a film layer for preventing the stock according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a flow chart showing a manufacturing process of a paper tube with a film layer for preventing equity, according to the present invention, and FIG. 2 or 3 is a cross- FIG. 4 is a view illustrating a step of forming a layer in a manufacturing process of a paper tube having a film layer for preventing dust, according to the present invention. FIG. FIG. 6 or FIG. 8 is a view showing another embodiment of a method of manufacturing a paper tube in which a film layer for preventing dust is formed according to the present invention.

As shown in FIG. 1, the paper tube having the film layer for preventing the stock according to the present invention includes a first film layer forming step S1, a stratum formation step S2, a forming step S3, a cutting step S4, ≪ / RTI >

More particularly, the present invention provides a method of manufacturing a paper tube having a film layer for preventing dust from being formed, comprising the steps of: (S1) forming a first film layer by winding a film on an outer circumferential surface of a rotating shaft, (S2) for forming a ground layer on the outer circumferential surface of the film layer by slanting the raw paper to form a ground layer; a forming step (S3) for increasing the surface quality and hardness of the paper tube composed of the first film layer and the ground layer; (S4) cutting the formed paper tube to a predetermined length.

In the paper tube having the film layer formed by the manufacturing method of the paper tube having the film layer for preventing the above-mentioned stains, the first film layer formed through the first film forming step (S1) The first film layer positioned on the inner peripheral surface comes into contact with the chuck instead of the ground layer.

Thus, even if friction occurs between the chuck and the paper tube (first film layer), no stake is generated.

That is, the paper tube having the film layer for preventing equity according to the present invention does not generate fine dust as the first film layer is contacted instead of the paper layer.

FIG. 2 or FIG. 3 illustrates a first film layer forming step (S1) during the manufacturing process of a paper tube having a film layer for preventing the stock according to the present invention, and includes a first film layer 10 Is formed by winding a film 11 on the outer circumferential surface of a rotating shaft 1 rotating at a predetermined rotational speed.

More specifically, the film 11 is fed to and wound around the rotating shaft 1 at a supply angle 102 having a predetermined angle to the axial direction 103 of the rotating shaft 1 rotating as shown by 101, , The angle, the number of times, and the method may vary depending on the use and diameter of the branch pipe to be manufactured.

For example, the axial direction 103 of the rotary shaft 1 and the angle of the supply angle 102 are changed to oblique lines having 85 to 65 degrees depending on the diameter of the branch pipe to be manufactured. For convenience of explanation, the first film may be wound at a first angle of incidence and a second angle selected from the range of 85 to 65 degrees, and the second film to be described later may be wound at a third angle of < . ≪ / RTI >

As another winding method, both side surfaces of the film 11 wound on the rotating shaft 1 are brought into contact with each other as shown in 401, or the film 11 wound on the rotating shaft 1 The first film layer 10 may be formed to have the overlapping region 12 having an area.

In addition, the film 11 may be formed by adhering a film comprising at least one of acryl, PE, PP, PU, PET, and parchment to one side or both sides of a base paper, or in the form of a coated film.

The parchment described above is a resin-based artificial leather or a parchment made of leather, which is different from the film but is described as a film 11 for ease of explanation.

Even if a film having a film adhered to one side of the paper or a film having one side coated with the paper is used as described above, the film surface direction is set so as to be parallel to the center of the rotating shaft 1 so as to form the first film layer 10 on the inner circumferential surface of the core As shown in Fig.

As another method, there is a method of winding the film 11 toward the center of the rotary shaft 1 so as to form the inner peripheral surface of the paper tube 11 after forming the film 11 on one side while supplying the raw paper have.

That is, the film 11 is wound on the rotary shaft 1 while forming the film 11 on one side of the raw paper simultaneously with the supply of the raw paper in an inline form.

Further, although not shown, the thickness and the strength of the film layer 10 may be increased by repeating the first film layer forming step S1.

For example, the first film 11 is wound on the rotary shaft 1 so that the angle between the axial direction 103 of the rotary shaft 1 and the feeding angle 102 is 85 degrees (first angle) After the first film layer 10 is formed, the first film 11 is formed so that the angle between the axial direction 103 of the rotary shaft 1 and the feed angle 102 is 65 degrees (second angle) And winding the film on the outer circumferential surface of the first film layer 10,

As described above, when the first film 11 forming the first film layer 10 is repeatedly wound, the feeding angle 102 or the feeding direction of the first film 11 to be repeatedly wound is different from that of the first film 11 They are most preferred as they have high strength, but may be the same for ease of processing. That is, the supply direction of the first film supplied at an angle of 85 degrees and the supply direction of the first film supplied at an angle of 65 degrees may be different from each other.

When the first film 11 is repeatedly wound on the outer circumferential surface of the first film layer 10, the first film layer 10 formed first and the first film 11 wound on the outer circumferential surface of the first film layer 10 11 are preferably coated with an adhesive so that the first films 11 repeatedly wound are not exposed.

The first film 11 may be made of a material including at least one of acrylic, PE, PP, PU, and PET depending on the use of the paper tube.

For example, when slippage should not occur between a chuck for fixing a paper tube and a paper tube fixed to the chuck, it is preferable to use a PU material film. In case of a general paper tube, PE, PP and PET materials are used .

In addition, the first film 11 may further include a composition for preventing static electricity in order to prevent static electricity generated by friction with the chuck.

For example, the first film 11 may be composed of polyaniline modified by acrylic and cyanatoacrylate, and the composition for preventing static electricity of the first film 11 may be polypyrrole, polythiophene May also be used.

FIG. 4 is a view showing a stratification forming step S2 in the process of fabricating a paper tube having a film layer for preventing equity, according to the present invention. In the stratifying step S2, The ground layer 21 is wound around the outer circumferential surface of the first film layer 10 to form the ground layer 20.

The stratum formation step S2 uses the same method as that of the first film 11 in the above-described first film layer formation step S1 described above. However, instead of the rotation shaft 1, the first film layer 10 in that the raw paper 21 is wound around the outer peripheral surface.

More specifically, the supply direction of the raw paper 21 to the outer circumferential surface of the rotating shaft 1 formed through the first film layer forming step S1 is changed from a feeding angle The paper 21 is supplied and wound around the outer circumferential surface of the first film layer 10 by the rollers 102 and 102 to form the paper layer 20. In the same manner as the first film layer 10, The number of times, and the method may vary depending on the use and diameter of the paper tube to be manufactured, and the variation in strength and thickness is larger than that of the first film layer 10.

This is because the paper stock 21 is basically repeated several times to several tens of times to form a paper tube, which is larger than the difference in the winding direction, angle, and number of times of the first film layer 10.

That is, the physical properties (stiffness, thickness) change is larger as the layer 20 is formed by winding the layer 20 more times than the film layer 10 formed by winding once or several times.

In addition, when the winding direction is different when winding is repeated a plurality of times, the paper tube has the highest rigidity.

For example, it is most preferable that the winding is repeatedly carried out in such a manner that winding is performed once in the clockwise direction with respect to the axial direction of the rotating shaft 1 and then once in the counterclockwise direction.

Further, the paper stock 21 which is repeatedly wound a plurality of times as described above is preferable because the paper 21 is adhered to the lower surface of the raw paper 21, The embroidery sheet 21 may be used.

As another winding method, both sides of the paper 21 to be wound are brought into contact with each other as in the above-mentioned other winding method of the first film 11, or the overlapping section 12 in which the paper 21 has a predetermined area The ground layer 20 may be formed.

When the formation of the paper tube having the cylindrical shape is completed through the paper stratification forming step S2, the forming step S3 for further improving the physical properties of the paper tube proceeds. In the forming step S3, Process, a vulcanization process, and an extrusion process.

The impregnation and drying step is a step of wrapping the outer peripheral part with the paper while increasing the hardness by using phenol resin and methanol. When the impregnation and drying step is finished, the outer peripheral part of the paper tube is rotated by the rollers, The work of increasing the hardness is carried out once again.

After the hardness is increased through the adhesive, the wax process is carried out. In this case, the surface of the paper tube is smoothed to facilitate winding and prevent scattering of the stock.

After completion of the waxing process, a predetermined external pressure is applied to the paper tube through an extrusion process to uniformize the outer circumferential portion, thereby reducing the deviation of the product, and then cutting the formed paper tube into a predetermined length through the cutting step S4.

The branch paper cut through the cutting step (S4) is polished at both end portions cut through the end treatment process or coated (impregnated) with the resin type to the cut surfaces, so that the cut end faces are made uniform and smooth .

5, the paper tube having the film layer for preventing the stock according to the present invention is formed by a first film layer forming step S1, a stratification forming step S2, a forming step S3, , A second film layer forming step (S5), and a foam layer forming step (S6) in addition to the cutting step (S4).

Further, the method may further include only one of the second film layer forming step (S5) and the foam layer forming step (S6), or the order in which the processes are performed may be changed.

For example, after forming the first film layer forming step (S1), the layer forming step (S2), and the forming step (S3), the second film layer forming step (S5) The step S5 may be performed and the cutting step S4 may be performed.

In another embodiment, the method further includes a foam layer forming step (S6). After the first film layer forming step (S1), the layer forming step (S2), the forming step (S3), and the cutting step (S4) 2 film layer forming step S5 may be performed.

Further, when the second film layer forming step S5 is further performed, the outer circumferential surface of the paper tube, that is, the surface on which the sheet is wound becomes smoother, and the effect of suppressing the stagnation occurring in the outer circumferential portion can be obtained.

The second film layer forming step S5 may be performed by using the second film layer forming step S1 instead of the rotating shaft 1 in the same manner as the first film 11 winding method of the first film layer forming step S1 described above The second film is wound around the outer circumferential surface of the second film.

More specifically, the second film is supplied to and wound around the outer circumferential surface of the paper layer (twist layer) at a supply angle having a predetermined angle with the axial direction of the rotating shaft for rotating the second film, Like the first film layer 10, the winding direction, angle, number of times, and method of winding the second film may vary depending on the use and diameter of the paper tube to be manufactured. That is, since the second film layer can be formed in the same manner as the first film layer 10, the second film can be formed of at least one of acrylic, PE, PP, PU, PET, As shown in FIG. In the second film layer forming step, the second film is formed on the outer surface of the paper tube so that the angle of the axis of the rotating shaft and the supplying angle of the second film is 85 degrees (third angle) And then the second film is wound around the outer circumferential surface of the second film layer in an oblique line so that the angle between the axial direction of the rotating shaft and the supply angle of the second film is 65 degrees (fourth angle) do. At this time, the supply direction of the second film supplied at an angle of 85 degrees and the supply direction of the second film supplied at an angle of 65 degrees are different from each other. The second film includes a composition for preventing static electricity, such as polyaryline, polypyrrole, and polythiophene, like the first film.

6, the foam layer is formed on the outer circumferential surface of the stratum 20 by forming a foam layer 51. The foam may have an adhesive layer formed on one surface thereof, And is attached to the outer circumferential surface of the stratum 20.

The foam layer constituting the foam layer 51 is made of resin such as PE (polyethylene), PP (polypropylene), or foamed styrene having elasticity or an elastic material such as rubber. The foam is wrapped around the outer circumferential portion of the paper layer 20 so that generation of foreign matter during winding of the film is reduced and the defective step difference of the sheet wound on the paper tube due to the elasticity of the foam layer 51 can be eliminated.

The entire outer circumferential portion may be formed in the form of a foam, such as a method in which an adhesive is applied to the entire outer surface of the outer layer of the layer 20 to form a bonding layer so that the foam can be adhered to the outer surface of the layer 20 on which the adhesive layer is formed A double-sided tape 52 for fixing the end of the sheet wound around the outer periphery of the paper layer 20 to the paper tube as shown in Fig. 7 may be further included.

More specifically, the foam is attached to the double-faced tape 52 by a width shorter than the outer circumferential length of the layer 20, and the length of the double-faced tape 52 may vary depending on the kind of sheet to be wound on the branch pipe.

For example, when the sheet to be wound is to be adhered to the paper tube with a higher adhesive force, the double-sided tape 52 having a wider width is used, and the double- The length of the foam is shortened.

The double-sided tape 52 is bonded to the outer circumferential portion of the space between the opposite ends of the foil, which surrounds the paper layer 20, from one end to the other in the axial direction for rotating the paper tube.

Therefore, when the double-sided tape 52 is not present, the outer periphery of the double-sided tape 52 is entirely composed of foam, and when the double-sided tape 52 is not present, The outer peripheral portion of the branch pipe is composed of the foam and the double-sided tape 52, so that no groove or step is formed.

The double-sided adhesive tape 52 may be attached to the foam by forming an adhesive layer having a predetermined width from one end to the other end in the direction of the rotation axis of the paper tube, and attaching the release paper.

The double-sided tape 52 may be formed of the same material as the foam to which an adhesive layer is formed.

As another embodiment, in addition to the method of coating (applying and impregnating) a resin series on the end faces (cut faces) located on both sides of the cut branch tube as shown in Fig. 8 to make the cut end faces uniform and smooth, And a guide ring attaching step of attaching the guide ring 53 of the guide ring.

More specifically, the resin-based disk-shaped guide ring 53 is attached to both cut surfaces of the branch pipe through the step of attaching the guide ring, thereby preventing the scattering of the staple generated on the cut surface.

Further, the guide ring 53 has an adhesive layer formed on one surface thereof, or is attached to the cut surface of the branch tube through an adhesive, and is applied to the branch tube by a simple method using attachment.

In addition, when the guide ring 53 is attached to the cut surfaces on both sides of the branch pipe, the durability of the cut surface can be increased along with the effect of preventing the stock.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention. The scope of the invention should therefore be construed in light of the claims set forth to cover many of such variations.

1:
10: film layer
11: Film
20: Strata
51: Foam layer
52: Double-sided tape

Claims (7)

A method of manufacturing a paper tube having a film layer for preventing a stock for winding a sheet in a roll form,
A first film layer forming step of winding a first film on an outer circumferential surface of a rotating shaft to form a first film layer;
Forming a ground layer on the outer circumferential surface of the first film layer by diagonally winding the ground layer;
A forming step of increasing the surface quality and hardness of the paper tube composed of the first film layer and the paper layer;
And a cutting step of cutting the formed paper tube to a predetermined length through the forming step,
Wherein the first film layer forming step comprises:
A first film layer is formed by winding a first film on an axis of rotation with a diagonal line so that the angle between the axial direction of the rotating shaft and the feeding angle of the first film is a selected first angle of the range of 85 to 65 degrees, In winding the first film diagonally to the outer circumferential surface of the first film layer so that the angle of the supply angle of the first film is a selected second angle of the range of 85 to 65 degrees,
Wherein a feeding direction of the first film fed at the first angle is different from a feeding direction of the first film fed at the second angle,
Characterized in that the first film comprises a composition for preventing static electricity of any one of polyaryline, polypyrrole and polythiophene
A method for manufacturing a paper tube having a film layer for preventing a deposit.
The method according to claim 1,
And a second film layer forming step of winding the second film on the outer circumferential surface of the paper tube formed after the forming step to form a second film layer,
Wherein the second film layer forming step comprises:
A second film layer is formed by winding the second film on the outer circumferential surface of the paper tube in a diagonal line so that the angle between the axial direction of the rotating shaft and the feeding angle of the second film is a selected third angle in the range of 85 to 65 degrees, And the angle of the supply angle of the second film is in the range of 85 to 65 degrees, the second film is wound diagonally on the outer circumferential surface of the second film layer,
The supply direction of the second film supplied at the third angle is different from the supply direction of the second film supplied at the fourth angle,
Characterized in that the second film comprises a composition for preventing static electricity of any one of polyaryline, polypyrrole and polythiophene
A method for manufacturing a paper tube having a film layer for preventing a deposit.
The method according to claim 1,
Wherein the first film comprises at least one of acrylic, PE, PP, PU, PET, and parchment paper.
A method for manufacturing a paper tube having a film layer for preventing a deposit.
The method according to claim 1,
The original is adhered to the outer surface of the first film layer by an adhesive,
The above-
The method comprising winding the original paper in the clockwise direction with respect to the axial direction of the rotating shaft and then winding the original paper in the counterclockwise direction repeatedly and repeatedly several times
A method for manufacturing a paper tube having a film layer for preventing a deposit.
The method according to claim 1,
Further comprising a foam layer forming step of forming a foam layer by wrapping a foil on the outer circumferential surface of the paper tube after the cutting step,
Wherein the foam layer forming step comprises:
The material of the foam is made of any material having elasticity among PE, PP and foamed styrene,
The foam is adhered to the outer surface of the sheet by a width equal to the width of the double-sided tape, and the double-sided tape is adhered to a space between both ends of the foam, ≪ / RTI >
A method for manufacturing a paper tube having a film layer for preventing a deposit.
The method according to claim 1,
Further comprising a guide ring attaching step of attaching a resin-type disk-shaped guide ring to prevent scattering of the staple generated at both cut surfaces of the branch tube after the cutting step
A method for manufacturing a paper tube having a film layer for preventing a deposit.
Characterized in that it is produced by the process according to any one of claims 1 to 5
A paper tube with a layer of film to prevent stake.

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