JP2012153388A - Wound roll paper package, and wound roll paper packaging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wound roll paper package which can be manufactured by packaging a wound roll paper with one sheet of package paper with moisture-proof property by using a conventional packaging apparatus without mechanical remodeling of the conventional packaging apparatus having a mechanism for coating a water soluble adhesive.SOLUTION: The wound roll paper package manufactured by packaging a wound roll paper with the package paper, includes: the wound roll paper formed by winding up a belt-like paper in a roll; a belt-like package paper including a base paper and a moisture barrier layer formed on a rear surface of the base paper, which is wrapped around a body of the wound roll paper; and an adhesive adhering the moisture barrier layer with the base paper. The adhesive is a polyacrylic adhesive containing an acrylic acid ester component.

Description

  The present invention relates to a winding roll paper packaging body and a packaging method for winding roll paper, and more particularly, the apparatus without modifying the conventional packaging apparatus that wraps the winding roll paper with two wrapping papers. The present invention relates to a winding roll paper packaging method for packaging a winding roll paper with a single wrapping paper having moisture resistance, and a winding roll paper package that can be manufactured using the apparatus.

  In general, a base paper manufactured by papermaking is packaged and stored or shipped in the form of a wound roll paper (so-called winding) wound into a roll. At the time of shipment, it is important not to be damaged by external pressure in the distribution process or adversely affected by environmental conditions such as humidity and temperature, and the same applies to storage. Therefore, conventionally, as shown in FIG. 5, the roll paper 111 is double-wrapped with a thick outer paper 110 and an inner paper 109 provided with a moisture-proof layer on the back surface of the base paper. At the time of packaging, a packaging apparatus 100 as shown in FIG. 6 was used (for example, JW-II automatic packaging equipment manufactured by Kawanoe Machinery Co., Ltd.).

  The packaging apparatus 100 shown in FIG. 6 includes a plurality of unreel parts 101 to 106, a body winding part 107, and an adhesive application part 108.

  The plurality of unreel portions 101 to 106 include front unreel portions 101 to 103 disposed on one side via the body winding portion 107 and rear unreel portions 104 to 106 disposed on the other side. Each of the front unreel portions 101 to 103 unwinds the interior paper 109 wound in a roll shape. Each of the rear unreel portions 104 to 106 unwinds the exterior paper 110 wound in a roll shape.

  The body winding portion 107 selectively pulls out the interior paper 109 from any one of the front unreel portions 101 to 103, and selectively selects the exterior paper 110 from any one of the rear unreel portions 104 to 106. The take-up roll paper 111 is double-rolled with the pulled out interior paper 109 and exterior paper 110. The exterior paper 110 is made of thick kraft paper. The interior paper 109 is composed of a base paper made of thin kraft paper and a moisture-proof layer made of a low density polyethylene film laminated on the back surface of the base paper.

  The interior paper 109 is cut slightly longer than the outer peripheral length of the take-up roll paper 111 by a cutting unit (not shown). The exterior paper 110 is cut longer than the length of the interior paper 109 by a cutting unit (not shown). In a state where the winding roll paper 111 is double-rolled, the winding end end portion (so-called winding edge) of the exterior paper 110 is overlapped with the peripheral surface of the exterior paper 110.

  The adhesive application unit 108 applies a water-soluble adhesive to the surface of the end of the winding paper 110 on the winding end side. The water-soluble adhesive is a vinyl acetate resin-based water-soluble adhesive. When the body winding unit 107 winds the take-up roll paper 111, the back surface (base paper) of the exterior paper 110 to which the water-soluble adhesive is applied and the surface (base paper) of the exterior paper 110 are formed by the water-soluble adhesive. Glued.

After bonding by drum winding, the circular inner contact paper 112 is brought into contact with both end faces of the take-up roll paper 111. The ears on both sides of the exterior paper 110 and the interior paper 109 are folded along the both end surfaces of the take-up roll paper 111 while the inner contact paper 112 is in contact. After the ears are folded, the circular outer contact paper 113 is mounted at positions corresponding to both end faces of the take-up roll paper 111.
The winding roll paper 111 is double-wrapped through the above steps.

  According to this packaging method, the roll-up roll paper 111 can be moisture-proof by the moisture-proof layer of the interior paper 109.

However, the packaging method described above has the following problems.
That is, double wrapping with the exterior paper 110 and the interior paper 109 requires two sheets of wrapping paper, which increases the cost and creates an air layer between the exterior paper 110 and the interior paper 109. There was a problem that the layer contained moisture and the moisture resistance was poor. In the double packaging, since the exterior paper and the interior paper are combined, it is necessary to reduce the thickness of the interior paper in terms of cost, and the moisture resistance is poor. Therefore, it becomes easy for the product to absorb and release moisture according to the humidity of the outside air, and it is easy for wrinkles to enter the product. Increasing the thickness of the interior paper can suppress moisture absorption and desorption, but increases the total cost combined with the exterior paper.

  Therefore, recently, a rolled paper roll is made of a single wrapping paper composed of a base paper made of thick kraft paper and a moisture-proof layer made of a low density polyethylene film laminated on the back surface of the base paper. Packaging has been done to reduce packing material costs. In the case of packaging with this wrapping paper, a hot melt adhesive is applied to the back surface of the end of the winding end of the wrapping paper. By winding the wrapping paper around a take-up roll paper in a state where the hot melt adhesive is applied, the back surface (moisture-proof layer) of the end of winding of the wrapping paper, and the front surface (base paper) of the wrapping paper, Is glued. Even if a water-soluble adhesive is used as in the case of double packaging, the base paper and the moisture-proof layer cannot be bonded because the water-soluble adhesive hardly penetrates into the moisture-proof layer.

  As described above, when the winding roll paper is packaged with one wrapping paper, conventionally, a hot-melt adhesive has been used, but this case also has the following problems. That is, in order to apply the hot-melt adhesive, the above-described packaging device 100 cannot be used as it is, and it is necessary to make a major remodeling, which requires a considerable remodeling cost. In hot melt bonding, hot melt is heated in a dedicated tank to make it flowable, hot melt fed from the tank is discharged from a dedicated gun, applied to the adherend, and the adherends are bonded together. After that, it is naturally cooled and cured for several seconds to several tens of seconds to impart adhesiveness. In such an adhesive system, the hot melt adhesive must be maintained at a high temperature of about 80 ° C. to 200 ° C., so that a dedicated device for heat control is required, and modification costs are required. In the conventional packaging device 100, the mechanism for applying the water-soluble adhesive includes a glue tray that stores the water-soluble water-soluble adhesive, and an application roller that applies the water-soluble adhesive stored in the glue tray to the exterior paper. Is provided. Since the upper part of the glue tray is released in this mechanism, hot melt adhesive will harden quickly when hot melt adhesive is added, so use this mechanism to apply hot melt adhesive. I can't.

  Therefore, it is a problem to wrap the winding roll paper with one moisture-proof wrapping paper using the device without modifying the conventional packaging device 100 having a water-soluble adhesive application mechanism. It was.

  Patent Document 1 discloses a winding device for winding a moisture-proof sheet around a wound roll paper. However, this device is a device for fixing a wound state of the sheet by adhering the moisture-proof sheet with a double-sided tape, and packaging the winding roll paper using the packaging device having the application mechanism of the water-soluble adhesive. Is not something to do.

Japanese Patent Laid-Open No. 5-116818

  The present invention has been made in view of such circumstances, and the conventional packaging apparatus having a water-soluble adhesive application mechanism is not modified and wound with a sheet of moisture-proof wrapping paper using the apparatus. It is an object of the present invention to provide a winding roll paper packaging method for packaging take-up roll paper and a roll-up roll paper package that can be manufactured using the apparatus.

In order to solve the above problems, the present invention employs the following means. That is,
The first invention is
A rolled roll paper package formed by wrapping a rolled roll paper with wrapping paper,
A wound roll paper obtained by winding a strip of paper into a roll;
A belt-shaped wrapping paper that includes a base paper and a moisture-proof layer provided on the back surface of the base paper, and winds and wraps the peripheral surface of the winding roll paper;
An adhesive that bonds the base paper and the moisture-proof layer;
The said adhesive agent is a polyacrylic acid-type adhesive agent containing an acrylic ester component, It is a winding roll paper package body characterized by the above-mentioned.

  According to the first invention, since the polyacrylic acid-based water-soluble adhesive containing the acrylate component is used, the base paper and the moisture-proof layer can be firmly bonded with the water-soluble adhesive. Therefore, a roll-up roll paper package is obtained by packaging a roll-up roll paper with a single moisture-proof wrapping paper using the apparatus without modifying the conventional packaging apparatus having a water-soluble adhesive application mechanism. You can get a body. As a result, it is possible to simultaneously achieve reduction in packing material costs and ensuring moisture proofing without increasing equipment costs.

According to a second invention, in the first invention,
The surface roughness of the base paper surface is 5.5 μm or more and 20 μm or less, and the surface roughness of the moisture-proof layer surface is 2 μm or more and less than 5.5 μm.

  According to the second invention, the base paper and the moisture-proof layer can be bonded more firmly with the water-soluble adhesive.

According to a third invention, in the first or second invention,
The moisture-proof layer is made of low-density polyethylene, and the moisture-proof layer has a thickness of 10 to 50 μm.

  According to the third invention, the base paper and the moisture-proof layer can be more firmly bonded with the water-soluble adhesive.

A fourth invention is any one of the first to third inventions,
The non-volatile content of the adhesive is 20 to 55% by mass.

  According to the fourth invention, the base paper and the moisture-proof layer can be bonded more firmly with the water-soluble adhesive.

The fifth invention is:
A method of wrapping a rolled roll paper with wrapping paper,
A belt-wrapping process including a base paper and a belt-shaped wrapping paper including a moisture-proof layer provided on the back surface of the base paper, and a body winding step of winding the peripheral surface of the winding roll paper;
An adhesive application step of applying an adhesive that adheres the base paper and the moisture-proof layer to the wrapping paper by winding the peripheral surface of the winding roll paper with the wrapping paper,
The above-mentioned adhesive is a water-soluble adhesive and is a polyacrylic acid-based adhesive containing an acrylic ester component.

  According to the fifth invention, since the polyacrylic acid-based water-soluble adhesive containing an acrylate component is used, the base paper and the moisture-proof layer can be firmly bonded with the water-soluble adhesive. Therefore, a roll-up roll paper package is obtained by packaging a roll-up roll paper with a single moisture-proof wrapping paper using the apparatus without modifying the conventional packaging apparatus having a water-soluble adhesive application mechanism. You can get a body. As a result, it is possible to simultaneously achieve reduction in packing material costs and ensuring moisture proofing without increasing equipment costs.

According to a sixth invention, in the fifth invention,
A plurality of unreel portions each for unwinding the wrapping paper;
A selection unit for selectively unwinding the wrapping paper from only one of the plurality of unreel units;
The take-up roll paper is packaged using a packaging apparatus comprising:

  According to the sixth aspect of the present invention, one wrapping paper can be selectively unwound from a plurality of unreel portions of the conventional wrapping apparatus, and the winding roll paper can be packaged.

A seventh invention is the fifth or sixth invention, wherein
The plurality of unreel portions includes a front unreel portion disposed on one side via the trunk winding portion and a rear unreel portion disposed on the other side,
The selection unit selects one unreel portion from only one of the front unreel portion and the rear unreel portion.

  According to the seventh invention, both the front unreel part (conventionally used as a part to unreel the exterior paper) and the rear unreel part (conventionally used as the part to unreel the interior paper) of the conventional packaging device, The same kind of moisture-proof wrapping paper can be used as an unreeled part.

  According to the present invention, a take-up roll for packaging a take-up roll paper with a sheet of moisture-proof wrapping paper using the apparatus without modifying the conventional packaging apparatus having a water-soluble adhesive application mechanism. It is possible to provide a paper roll packaging method that can be manufactured using the paper packaging method and the apparatus.

The figure which shows the winding roll paper packaging body which concerns on embodiment of this invention It is a figure which shows the component of the winding roll paper packaging body which concerns on embodiment of this invention, (A) is a figure which shows each component separately, (B) is a figure which expands and shows the cross section of a wrapping paper The figure which shows the manufacturing apparatus of the winding roll paper package which concerns on embodiment of this invention The figure which expands and shows a part of manufacturing apparatus of the winding roll paper packaging body which concerns on this invention (unwinding part, adhesive agent application part) The figure which shows the component of the conventional winding roll paper packaging body The figure which shows the manufacturing apparatus of the conventional winding roll paper packaging body

(Embodiment)
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a wound roll paper package according to the present invention. FIG. 2 is a diagram showing components of the wound roll paper package according to the present invention, (A) is a diagram showing each component individually, and (B) is an enlarged view showing a section of the wrapping paper. It is. FIG. 3 is a view showing a winding roll paper package manufacturing apparatus according to the present invention. FIG. 4 is an enlarged view (winding portion, adhesive application portion) of a part of the roll roll paper packaging manufacturing apparatus according to the present invention.

First, the wound roll paper package according to the present invention will be described.
As shown in FIGS. 1 and 2, a wound roll paper package 1 according to the present invention is formed by packaging a wound roll paper 2 with a wrapping paper 3. The winding roll paper package 1 includes a winding roll paper 2, an adhesive 4, and a packaging paper 3 as main components.

  The wound roll paper 2 is obtained by winding a belt-like paper into a roll shape. The type of the strip-shaped paper is not particularly limited, and examples thereof include high-quality paper, medium-quality paper, kraft paper, and newspaper. Further, the width and diameter of the winding roll paper 2 are not particularly limited. As will be described later, the wrapping paper 3 having an appropriate width corresponding to the width of the winding roll paper 2 is selected.

  The wrapping paper 3 is a belt-like wrapping paper that includes a base paper 5 and a moisture-proof layer 6 provided on the back surface of the base paper 5, and winds and wraps the peripheral surface of the winding roll paper 2.

  Although the material of the base paper 5 is not specifically limited, For example, the craft paper used as a cardboard liner can be used. Although the thickness of the base paper 5 is not specifically limited, For example, it can set to 90-400 micrometers, Preferably it can be set to 110-350 micrometers. By setting to such a thickness, it is possible to obtain a base paper excellent in pressure resistance and impact resistance. The Parker print surf surface roughness of the base paper 5 is not particularly limited, but is preferably set to 5.5 μm or more and 20 μm or less, and more preferably set to 6.0 μm or more and 10 μm or less.

  The material of the moisture-proof layer 6 is not particularly limited as long as it has good moisture-proof property, flexibility, and impact resistance. The moisture-proof layer may be provided by applying a moisture-proof coating, or provided by an extrusion lamination method. Alternatively, a dry laminating method in which a film is bonded may be used, or a hot melt laminating, wet laminating, wax laminating, or other laminating method may be used. Among these, for example, it is preferable to laminate a low-density polyethylene (LDPE), unstretched polypropylene, ethylene-vinyl acetate copolymer resin (EVA), or the like to provide a moisture-proof layer because the moisture-proof layer is particularly excellent. The thickness of the moisture-proof layer 6 is not particularly limited, but is preferably set to 10 to 50 μm, and more preferably set to 12 to 25 μm. Further, the Parker print surf surface roughness of the moisture-proof layer 6 is not particularly limited, but is preferably set to 2 μm or more and less than 5.5 μm, and more preferably set to 3 μm or more and less than 5 μm.

  The surface of the moisture-proof layer 6 is preferably smoother than the surface of the base paper 5. As will be described later, since the glue is applied to the moisture-proof layer 6 and bonded to the base paper 5 as described later, after the glue is applied to the smooth moisture-proof layer 6 and bonded to the rough base paper 5, the peel strength is higher and moisture-proof. It is easy to obtain excellent winding. After pasting on the rough base paper 5 and pasting on the smooth moisture-proof layer 6, even if the paste is evenly applied to the base paper 5, the paste is not easily transferred to the moisture-proof layer 6 due to the unevenness of the base paper 5, and uniform. In addition to being easily bonded to the film, the peel strength tends to decrease, and the moisture resistance tends to decrease.

  Here, the Parker print surf surface roughness will be described. Parker print surf surface roughness measures the unevenness of the paper surface at a narrow interval of about 51 μm and evaluates flatness. Unlike Beck smoothness, it is not easily affected by the air permeability of paper, so it generally has a high correlation with printability and is used as an index of printability. In the present invention, the base paper 5 and the moisture-proof layer 6 can be uniformly adhered by using the wrapping paper 3 having the surface irregularities of the base paper 5 and the moisture-proof layer 6 within a predetermined range at a narrow interval. A peel strength can be obtained.

In addition to the above-mentioned Parker print surf surface roughness, the moisture-proof layer 6 used in the present invention preferably has a surface contact angle with water of 90 ° or more, and the surface of the substrate 5 is also 90 ° or more. More preferred. In the present invention, since water-soluble adhesives are used for bonding, it was considered that it would be better to be familiar with 90 ° or less. However, when 90 ° or less, the paste is excessively familiar with the base paper 5 and the moisture-proof layer 6. Cheap. In this case, even when the paste is applied to the moisture-proof layer 6, the moisture-proof layer 6 is easily absorbed, and when pasted with the base paper 5, the peel strength after pasting tends to be low.
It is preferable that the base material 5 and the moisture-proof layer 6 have different contact angles. When the contact angle of the moisture-proof layer 6 to which the paste is first applied is larger than the contact angle of the base paper 5, the paste is more difficult to be absorbed by the moisture-proof layer 6, and when the paste is bonded to the base paper 5, the peel strength is further increased. The winding is improved and has excellent moisture resistance.

  The contact angle is an angle formed by the liquid surface and the solid surface where the surface of the stationary liquid contacts the solid wall, and is used as an index representing the wettability of the base material 5 and the moisture-proof layer 6 with respect to water in the present invention. The contact angle is measured according to TAPPI 458 om-84.

  As described above, the contact angle of the moisture-proof layer 6 is 90 ° or more, and the moisture-proof layer 6 has a larger contact angle than the base paper 5 and is smoother (the Parker print surf surface roughness is smaller). This is preferably the case when glue is applied to the moisture-proof layer 6 and bonded to the base paper 5. When the paste is applied to the base paper 5 and bonded to the moisture-proof layer 6, the contact angle of the base paper 5 is 90 ° or more, and the contact angle of the base paper 5 is larger than that of the moisture-proof layer 6. It is preferable that the surface is smoother (the Parker print surf surface roughness is small).

  The adhesive 4 is applied to at least the back surface (moisture-proof layer 6) near the end of the winding end of the wrapping paper 3 before the winding roll paper 2 is wound around the wrapping paper 3. By winding the winding roll paper 2 with the wrapping paper 3 in a state where the adhesive 4 is applied, the base paper 5 and the moisture-proof layer 6 are bonded. The application area of the adhesive 4 is not particularly limited, but it is preferable because sufficient adhesive strength can be obtained by gluing the peripheral surface of the wound roll paper 0.5 times or more, and 1.0 times or more. More preferably. In this case, the wrapping paper needs 1.5 laps or more, and further 2.0 laps or more.

  The adhesive 4 is a polyacrylic acid adhesive containing an acrylic ester component. Since the polyacrylic acid-based adhesive containing the acrylic ester component is water-soluble, it can be packaged with the wrapping paper 3 using an existing packaging facility having a water-soluble adhesive application mechanism. Moreover, since this adhesive is water-soluble, it is easy to adjust the concentration (nonvolatile content concentration) of the acrylate component by mixing with water before application. Further, since this adhesive is water-soluble, it is easily dissolved in water when the wrapping paper 3 is recycled after being applied to the wrapping paper 3 and used. Therefore, when this adhesive is used as a document, the wrapping paper 3 can be easily recycled. Note that conventional hot melt bonding is not recyclable because the hot melt is not dispersed in water. As the adhesive 4, for example, an acrylic emulsion (trade name “ESDINE # 7110”, non-volatile content of stock solution 50%, manufactured by Sekisui Fuller Co., Ltd.) is diluted or concentrated with water, and the non-volatile content (resin content) is 20 to 55. % Can be used. Dilution has the advantage that workability can be improved while maintaining peel resistance. If the non-volatile content is less than 20%, a sufficient adhesive effect cannot be obtained, and the adhesion between the base paper 5 and the moisture-proof layer 6 may be peeled off. If the non-volatile content exceeds 55%, the viscosity is higher than necessary. Therefore, the adhesive may clog in the line (pipe) through which the adhesive passes.

  Although the kind of acrylic ester is not particularly limited, for example, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, amyl acrylate, 2-ethylhexyl acrylate, isooctyl acrylate, n-octyl acrylate, acrylic Examples include acid n-nonyl, isononyl acrylate, decyl acrylate, and lauryl acrylate.

  According to the wound roll paper package 1 according to the present invention, since the polyacrylic acid-based adhesive 4 containing an acrylate component is used, the base paper 5 and the moisture-proof layer 6 are firmly bonded with a water-soluble adhesive. Can be glued. Therefore, without winding up the conventional (existing) packaging apparatus having a water-soluble adhesive coating mechanism, the roll roll paper 2 is packaged with one sheet of moisture-proof wrapping paper 3 using the apparatus. The roll paper package 1 can be obtained. As a result, it is possible to simultaneously achieve reduction in packing material costs and ensuring moisture proofing without increasing equipment costs.

Next, the packaging method of the winding roll paper 2 based on this invention is demonstrated.
The packaging method according to the present invention includes a body winding process and an adhesive application process as main processes.

  The body winding step is a step of winding the peripheral surface of the winding roll paper 2 with the belt-like wrapping paper 3 including the base paper 5 and the moisture-proof layer 6 provided on the back surface of the base paper 5.

  The adhesive application step is a step of applying the adhesive 4 that adheres the base paper 5 and the moisture-proof layer 6 to the wrapping paper 3 by winding the peripheral surface of the winding roll paper 2 with the wrapping paper 3. The adhesive application process is performed before the body winding process. As described above, the adhesive 4 is a polyacrylic acid-based adhesive containing an acrylic ester component. The adhesive 4 is applied to at least the back surface (moisture-proof layer 6) near the end of the winding end of the wrapping paper 3 before the winding roll paper 2 is wound around the wrapping paper 3. By winding the winding roll paper 2 with the wrapping paper 3 in a state where the adhesive 4 is applied, the base paper 5 and the moisture-proof layer 6 are bonded.

  As other processes, after the unwrapped wrapping paper 3 is cut at a required length, and after the wrapping paper 3 is bonded by the body winding process, circular inner paper 7 (see FIG. 2), the step of folding the ears on both sides of the wrapping paper 3 along the both end surfaces of the winding roll paper 2 with the inner contact paper 7 in contact, and the ears folded. After that, there is a step of mounting circular outer contact paper 9 (see FIG. 2) at positions corresponding to both end faces of the take-up roll paper 2.

Here, it is preferable that the body winding step and the step of contacting the inner contact paper 7 are separate steps. When the winding step and the step of contacting the inner contact paper 7 are performed at the same time, that is, when the wrapping paper 3 and the inner contact paper 7 are simultaneously mounted on the winding, the rotating wrapping paper 3 and the non-rotating inner contact paper 7 are rubbed. In addition, the circumferential portion of the inner contact paper 7 is liable to be loosened, and a gap is formed between the wrapping paper 3 and the inner contact paper 7, which tends to be inferior in moisture resistance. In particular, winding with the moisture-proof layer 6 inside is not preferable because the moisture-proof layer 6 may be damaged by the circumferential portion of the inner paper 7 and the moisture-proof property may be lowered.
The winding roll paper 2 is packaged with the wrapping paper 3 through the above steps.

  According to the packaging method of the wound roll paper according to the present invention, since the polyacrylic acid-based adhesive 4 containing an acrylate component is used, the base paper 5 and the moisture-proof layer 6 are firmly bonded with a water-soluble adhesive. Can be glued. Therefore, without winding up the conventional (existing) packaging apparatus having a water-soluble adhesive coating mechanism, the roll roll paper 2 is packaged with one sheet of moisture-proof wrapping paper 3 using the apparatus. The roll paper package 1 can be obtained. As a result, it is possible to simultaneously achieve reduction in packing material costs and ensuring moisture proofing without increasing equipment costs.

Next, the packaging device used in the winding roll paper packaging method according to the present invention will be described.
As shown in FIG. 3, the winding roll paper packaging device 8 according to the present invention has a plurality of unreel parts 91 to 96, an adhesive application part 10, a selection part 11, and a body winding part 12 as main components. (For example, JW-II automatic packaging equipment manufactured by Kawanoe Machinery Co., Ltd.).

  The manufacturing apparatus 8 in the present invention has the same configuration as that of the conventional (existing) manufacturing apparatus 100 (see FIG. 6), but the usage method is different.

  Each of the plurality of unreel portions 91 to 96 unwinds the wrapping paper 3. The plurality of unreel portions 91 to 96 are divided into front unreel portions 91 to 93 disposed on one side and rear unreel portions 94 to 96 disposed on the other side via the body winding portion 12. In the conventional method of use, the front unreel portions 91 to 93 unwind the exterior paper from the exterior paper roll, but in the present invention, unwind the packaging paper 3 from the roll of the packaging paper 3. Further, in the conventional usage method, the rear unreel portions 94 to 96 unwind the interior paper from the interior paper roll, but in the present invention, the rear unreel portions 94 to 96 unwind the packaging paper 3 from the roll of the packaging paper 3. That is, the front unreel portions 91 to 93 and the rear unreel portions 94 to 96 unwind the same type of wrapping paper 3. Note that rolls of the wrapping paper 3 having different widths are arranged on the front unreel portions 91, 92, and 93. Rolls of wrapping paper 3 having different widths are arranged on the rear unreel portions 94, 95, and 96. Therefore, according to the width of the winding roll paper 2, the wrapping paper 3 having a width suitable for the width can be selectively unwound from the front unreel portions 91 to 93. Moreover, according to the width | variety of the winding roll paper 2, the wrapping paper 3 of the width | variety suitable for the width | variety can be selectively unwound from the rear side unreel parts 94-96. That is, 4 to 6 types of wrapping paper 3 having different widths, which is impossible with the conventional manufacturing apparatus 100, can be arranged in the unreel portion, and windings having 4 to 6 types of different widths can be packaged in the same packaging. The device can be packaged with good workability.

  The adhesive application unit 10 applies the adhesive 4 that adheres the base paper 5 and the moisture-proof layer 6 to the wrapping paper 3. As described above, the adhesive 4 is a polyacrylic acid-based adhesive containing an acrylic ester component, and this adhesive is a water-soluble adhesive. As shown in FIG. 4, the adhesive application unit 10 includes an adhesive tray 17 that stores the water-soluble adhesive 4 and an application roller that applies the water-soluble adhesive 4 stored in the adhesive tray 17 to the wrapping paper 3. 18, an adhesive tank for supplying the adhesive 4 to the adhesive tray 17, a pump, and a liquid feed pipe (all not shown), and an adhesive 4 overflowing from the adhesive tray 17 is sent back to the adhesive tank. A liquid pipe (not shown). Although the upper part of the adhesive tray 17 is released, the water-soluble adhesive 4 is put in the present invention, so that the adhesive 4 is not hardened and the liquid feeding pipe is not clogged.

  The selection unit 11 selectively unwinds the wrapping paper 3 from any one of the plurality of unreel units 91 to 96. More specifically, the selection unit 11 includes a wrapping paper 3 having a width corresponding to the width of the wrapping paper 3 from any one of the front unreel parts 91 to 93 and the rear unreel parts 94 to 96. One unreel portion is selected, and the wrapping paper 3 is unwound from the selected unreel portion. The selection unit 11 causes the wrapping paper 3 to be unwound from the selected unreel portion by driving a roll controlled by a microcomputer having a selection function and the like.

  The body winding unit 12 winds the peripheral surface of the take-up roll paper 2 with the unwrapped wrapping paper 3. By this body winding, the moisture-proof layer 6 near the winding end of the wrapping paper 3 and the base paper 5 in the middle in the longitudinal direction of the wrapping paper 3 are bonded.

Other configurations include a cutting unit 16 (see FIG. 4) that cuts the unwrapped wrapping paper 3 with a required length, and after the wrapping paper 3 is adhered to the wrapping paper 3 by the body winding unit 12, The first abutting portion 13 that abuts the circular inner contact paper 7 on both end faces, and the ears on both sides of the wrapping paper 3 on the both end faces of the winding roll paper 2 while the inner contact paper 7 is in contact. There are a folding portion 14 that folds along, a second contact portion 15 that mounts the circular outer contact paper 9 at positions corresponding to both end faces of the take-up roll paper 2 after the ears are folded.
The operation of each of the above components is controlled by a microcomputer.

  According to the packaging device 8, one wrapping paper 3 can be selectively unwound from a plurality of unreel portions 91 to 96 of a conventional (existing) wrapping device, and the winding roll paper 2 can be packaged. Also, both the front unreel part (conventionally used as the part to unreel the interior paper) and the rear unreel part (conventionally used as the part to unreel the exterior paper) of the conventional packaging device are used. 3 can be used as a part to unreel. Therefore, the winding roll paper 2 can be packaged with one sheet of moisture-proof wrapping paper 3 without modifying the conventional packaging apparatus having a water-soluble adhesive application mechanism.

  In the above embodiment, the adhesive 4 is applied to at least the back surface (moisture-proof layer 6) near the end of the winding end of the wrapping paper 3 before the wrapping roll 3 is wound on the wrapping paper 3. However, the present invention is not limited to this, and an adhesive may be applied to the base paper 5 with the moisture-proof layer 6 on the front surface and the base paper 5 on the back surface. Further, the place where the adhesive is applied is not limited to this.

<Example>
Next, examples of the wrapping paper 3 according to the present invention will be described in more detail, but the present invention is not limited to only these examples.

(Examples 1 to 22)
A wrapping paper obtained by laminating a synthetic resin film on one side of a base paper made of kraft paper was cut into 25 mm × 230 mm to prepare a test wrapping paper. At that time, the material, thickness, and surface roughness of the base paper and moisture-proof layer were changed (Examples 1 to 22; see Table 1). A polyacrylic acid resin adhesive containing an acrylate component was applied to the moisture-proof layer surface of the test wrapping paper with a thickness of about 50 μm (wet state) using a bar coater # 50. A base paper surface of the same wrapping paper prepared in addition to this coated surface was overlapped and compressed once with a 6.5 kg hand roller, and the product cured overnight at room temperature was used as a test piece (Examples 1 to 22). The type, non-volatile content, and viscosity of the adhesive were also changed (Examples 1 to 22; see Table 1). As a polyacrylic acid resin-based adhesive containing an acrylate component, the product name “ESDINE # 7110” (non-volatile content of stock solution 50%, manufactured by Sekisui Fuller Co., Ltd.) is diluted or concentrated with water to obtain a non-volatile concentration. Adjusted and used.

(Comparative Examples 1-2)
The exterior paper which consists of kraft paper was prepared, these were cut | judged to 25 mm x 230 mm, and the exterior paper for a test was produced. A vinyl acetate resin adhesive was applied to the test outer paper with a thickness of about 50 μm (wet state) using a bar coater # 50. The same exterior paper prepared elsewhere was piled up on this coated surface, compressed once with a 6.5 kg hand roller, and cured overnight at room temperature to obtain a test piece (Comparative Examples 1-2, see Table 1). As the vinyl acetate resin-based adhesive, a trade name “Esdyne # 5266” (nonvolatile content of stock solution 35%, manufactured by Sekisui Chemical Co., Ltd.) was diluted with water to adjust the nonvolatile content concentration.

(Comparative Example 3)
A laminate of a synthetic resin film on one side of a base paper made of kraft paper was cut into 25 mm × 230 mm to prepare a test wrapping paper. A vinyl acetate resin adhesive was applied to the base paper surface of the test wrapping paper with a thickness of about 50 μm (wet state) using a bar coater # 50. The coated surface was covered with another moisture-proof layer surface of the same wrapping paper, compressed once with a 6.5 kg hand roller, and cured overnight at room temperature as a test piece (Comparative Example 3, see Table 1). . As a vinyl acetate resin-based adhesive, a trade name “Esdyne # 5266” (35% non-volatile content of stock solution, manufactured by Sekisui Fuller Co., Ltd.) was diluted with water to adjust the non-volatile concentration.

  A T-type peel test (g / 25 mm) was performed on the test pieces of Examples 1-22 and Comparative Examples 1-3. The conditions were tensile rate: 300 mm / min, measurement room temperature, humidity: 23 C ° / 50% RH. As the T-type tensile tester, model number: 102 type manufactured by Intesco was used.

(Evaluation method)
a) Peel strength If the peel strength is 500 g / 25 mm or more, the peel resistance is excellent, and if it is 200 g / 25 mm or more, it is the lower limit level that can be actually used although it has peel resistance. It is not practical and cannot be used. Although there is no upper limit to the peel strength, 1000 g / 25 mm is sufficient, and a higher strength is not preferable because it is inferior in economic efficiency, and even 900 g / 25 mm can be used practically.

b) Glue transfer property The transfer uniformity of the glue (adhesive) applied to the exterior paper was visually evaluated as follows.
(Double-circle): It is transferred uniformly and is excellent in paste transferability.
○: Although transfer unevenness is slightly observed, paste transferability is good.
Δ: Although transfer unevenness is somewhat observed, there is paste transferability and a practically usable lower limit level.

c) Glue (adhesive) transfer workability The workability during glue transfer was visually evaluated as follows.
A: No glue fall off around the glued roll during glue transfer, and excellent glue transfer workability.
○: A slight fall around the glued roll was observed during glue transfer, and regular cleaning is required, but actual operation is possible.

d) Moisture resistance After the rolled-up roll paper package is left at a temperature of 23 ° C and a humidity of 50% RH for 1 week, the packaging is peeled off, and the degree of wrinkling due to moisture absorption on the surface of the rolled-up roll paper is visually observed as follows. evaluated. The wrapping paper was wrapped with the moisture-proof layer 6 on the inside and the wrapping paper 3 was wound and adhered, and then the inner contact paper 7 was brought into contact therewith.
A: There is no moisture absorption wrinkle in the winding, and the moisture resistance is excellent.
○: Although some moisture absorption wrinkles were seen in the winding. Good moisture resistance.
Δ: Some moisture absorption wrinkles are seen in the winding, and there is moisture resistance, but the lower limit level that can be used practically.
×: Many moisture absorption wrinkles or large moisture absorption wrinkles are seen in the winding, and the moisture-proof property is low, so that it cannot be actually used.

e) Surface roughness According to the method described in ISO 8791-4 “Paper and paperboard—Roughness smoothness test method (air leakage method) —Part 4: Printsurf method”, a smoothness tester by air leakage ( Parker Print Surf, Lorentzen & Wettre), using a soft rubber packing disk with a clamp pressure of 490 Kpa, an air pressure of 1 MPa.

  The test results are shown in Table 1. As shown in Table 1, since all of the wrapping papers of the examples satisfy the configuration of claim 1, good results were obtained in each evaluation item. That is, the wrapping paper according to each embodiment can solve the problems of the present application.

  On the other hand, since none of the wrapping papers of the comparative examples satisfy the configuration of claim 1, good results cannot be obtained in any of the evaluation items, and the subject matter of the present application cannot always be solved.

  INDUSTRIAL APPLICABILITY The present invention can be used for a winding roll paper packaging method for single-wrapping a winding roll paper with a single wrapping paper having moisture resistance.

DESCRIPTION OF SYMBOLS 1 Winding roll paper packaging body 2 Winding roll paper 3 Packaging paper 4 Adhesive 5 Base paper 6 Moisture-proof layer 7 Internal paper 8 Manufacturing apparatus of winding roll paper packaging body (wrapping roll paper packaging apparatus)
DESCRIPTION OF SYMBOLS 9 Outfit paper 91-96 Unreel part 10 Adhesive application part 11 Selection part 12 Body winding part 13 1st contact part 14 Folding part 15 2nd contact part 16 Cutting part 17 Adhesive tray

Claims (7)

A rolled roll paper package formed by wrapping a rolled roll paper with wrapping paper,
A wound roll paper obtained by winding a strip of paper into a roll;
A belt-shaped wrapping paper that includes a base paper and a moisture-proof layer provided on the back surface of the base paper, and winds and wraps the peripheral surface of the winding roll paper;
An adhesive for bonding the base paper surface and the moisture-proof layer surface;
The wound roll paper package, wherein the adhesive is a water-soluble adhesive and is a polyacrylic acid-based adhesive containing an acrylate component.   2. The winding roll paper according to claim 1, wherein the surface roughness of the surface of the base paper is 5.5 μm or more and 20 μm or less, and the surface roughness of the surface of the moisture-proof layer is 2 μm or more and less than 5.5 μm. Packaging body.   The wound roll paper package according to claim 1 or 2, wherein the moisture-proof layer is made of low-density polyethylene, and the moisture-proof layer has a thickness of 10 to 50 µm.   The winding roll paper package according to any one of claims 1 to 3, wherein a non-volatile content of the adhesive is 20 to 55 mass%. A method of wrapping a rolled roll paper with wrapping paper,
In the belt-shaped wrapping paper including a base paper and a moisture-proof layer provided on the back surface of the base paper, a body winding step for winding the peripheral surface of the winding roll paper;
An adhesive application step of applying an adhesive that adheres the base paper and the moisture-proof layer to the wrapping paper by winding the peripheral surface of the winding roll paper with the wrapping paper,
The said adhesive agent is a water-soluble adhesive agent, and is a polyacrylic acid-type adhesive agent containing an acrylic ester component, The packaging method of the winding roll paper characterized by the above-mentioned. A plurality of unreel portions each for unwinding the wrapping paper;
A selection unit for selectively unwinding the wrapping paper from only one of the plurality of unreel units;
The winding roll paper packaging method according to claim 5, wherein the winding roll paper is packaged using a wrapping apparatus comprising: The plurality of unreel portions includes a front unreel portion disposed on one side via the body winding portion and a rear unreel portion disposed on the other side,
The winding method of claim 5 or 6, wherein the selection unit selects only one unreel part from either the front unreel part or the rear unreel part.

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