JP2017154745A - Packaging material roll with opening means and production method and device of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material with opening means capable of efficiently, cleanly and easily performing an opening work where the rising of a part attached with a cut tape is made small even when a packaging material roll with the opening means is made by winding a continuous long packaging sheet attached with the cut tape for breaking in a roll state along a longitudinal direction.SOLUTION: In a packaging material roll 10 with an opening means, a cut tape 2 for breaking is attached in a state meandered at a certain variation width roll state along the longitudinal direction of a continuous long packaging sheet 1 wound in a roll. The cut tape is preferably attached so as to have positional deviation by an amount corresponding to at least the length of the width of the cut tape in every winding of the packaging sheet. The packaging sheet is preferably provided with broken line-shaped small holes 5 along the vicinity of the cut tape.SELECTED DRAWING: Figure 1

Description

  The present invention is a packaging material roll formed by winding a continuous long packaging sheet into a roll shape, and the surface of an article is prevented from being soiled by being appropriately cut at the time of use. Used as a packaging material that is covered and packaged on the packaging, and in the packaging material opening operation, the packaging material is opened so that it can be opened efficiently, cleanly and easily without damaging the package. The present invention relates to a packaging material roll with an opening means provided with a cutting tape as a means, and a manufacturing method and a manufacturing apparatus therefor.

  When covering and wrapping with a sheet-like packaging material such as wrapping paper or packaging film so that the surface of the article as a product is not soiled, the edge of the packaging material that overlaps after coating is adhesive etc. It is performed by joining. In the case of such a packaging body, the opening operation can be performed by tearing the packaging material by hand, etc., but depending on the opening position (breaking position) and the method of opening (how to break) the packaging material May be broken in a messy manner, and it may take time for the opening operation and, after that, cleaning up may become troublesome.

  In addition, it is conceivable to cut the packaging material using a cutter such as a cutter knife for the purpose of preventing the packaging material from being randomly broken and performing the opening operation efficiently. Therefore, if the care is not taken carefully, the blade may accidentally break through the packaging material and damage the article being packaged.

Thus, conventionally, a packaging material with a cut tape has been proposed in which a cutting tape for fracture is attached to the inner surface or both front and back surfaces of the packaging material (see, for example, Patent Document 1 or 2).
In such a packaging material with a cut tape, the end of the cut tape is picked and pulled, and the packaging material is broken along the cut tape, and the package is damaged in the opening operation of the packaging material. In addition, the opening operation can be performed efficiently, neatly and easily.

  Such a packaging material with a cut tape can be molded as an individual packaging material designed in advance to have a predetermined size so as to match the size of the article to be packaged, but the article has various sizes In order to be able to cope with the packaging, it is formed as a packaging material roll with an unsealing means formed by winding a continuous long packaging sheet with a cut tape into a roll shape, and at a desired length or a predetermined dimension at the time of use Individual packaging is made by cutting each piece together.

  However, the packaging material roll with the opening means is such that the cutting tape for breaking is linearly attached along the longitudinal direction of the continuous long packaging sheet wound in a roll shape, Breaking cut tapes mounted on the packaging sheet overlap each other, and a portion corresponding to the position where the breaking cut tape is mounted rises to the outside, which is a so-called thick roll. Such thickening becomes more pronounced as the number of windings increases. If it does so, the part which rose by winding-up will get in the way, and trouble will arise in the movement of the packaging material roll with an opening means, the storage of the packaging material roll in the piled-up state, etc., and is not desirable.

  Further, in order to assist the breakage of the packaging material by the cut tape, a broken line-shaped small hole (so-called perforation) is also formed along the cut tape, but the broken line-shaped small hole is formed. When the wrapping sheet is wound, depending on the number of windings, the broken small hole may be unintentionally cleaved due to the rise of the portion where the cut tape is attached. If it does so, the length of the packaging sheet which can be wound will become a short thing.

  Therefore, the length of the wrapping sheet that can be wound is considered to be able to cope with the movement and storage of the packaging material roll, if the bulge (thickening) of the part where the cut tape is attached can be reduced. Can be made longer, and the packaging material roll with an opening means that reduces the possibility that the small hole in the broken line shape can be cleaved darkly can be obtained, but as far as the applicant knows, No corresponding packaging material roll with opening means has been proposed yet.

Japanese Utility Model Publication No. 45-33109 Japanese Utility Model Publication No. 48-16622

  The present invention has been made in view of the above circumstances, and in providing a packaging material with an opening means that can perform an opening operation efficiently, cleanly, and easily, in the longitudinal direction. Even when a continuous long packaging sheet with a cutting tape for breaking along the roll is wound into a roll and made into a packaging material roll with an opening means, the rise of the part with the cutting tape is reduced The purpose is to provide technology that can be used.

  The packaging material roll with an opening means of the present invention is a packaging material roll with an opening means on which a cutting tape for breaking is attached along the longitudinal direction of a continuous long packaging sheet wound in a roll shape. The cut tape is attached to the packaging sheet in a meandering state with a constant swing width.

  In the present invention, it is desirable that the cut tape is mounted so that it is displaced by an amount corresponding to at least the width of the cut tape every time the packaging sheet is wound.

In the present invention, the packaging sheet can be kraft paper or stretched paper having stretch properties in the length direction.
Moreover, in this invention, it is desirable that the packaging sheet is provided with broken-line-shaped small holes along the vicinity of the cut tape.

In the present invention, the packaging sheet may be provided with a visible mark on the outer surface corresponding to the position where the cut tape is attached. This mark can be a strip-shaped colored region, a character string, or a strip-shaped pattern region having a color different from that of the packaging sheet.
Further, when the mark is a character string, the direction of at least one of the plural character strings may be displayed in reverse.

  Moreover, the manufacturing method of the packaging material roll with an opening means of this invention is the packaging with the opening means to which the cutting tape for a fracture | rupture was mounted | worn along the longitudinal direction of the continuous long packaging sheet wound by roll shape. A method of manufacturing a material roll, a step of continuously feeding a long packaging sheet, a step of mounting on one side of the packaging sheet while feeding a cut tape for breaking so as to meander with a constant swing width, It includes at least a step of winding up the packaging sheet on which the cut tape is mounted in a roll shape.

  Furthermore, the manufacturing apparatus of the packaging material roll with an opening means of this invention is the packaging with an opening means to which the cutting tape for a fracture | rupture was mounted | worn along the longitudinal direction of the continuous long packaging sheet wound by roll shape. An apparatus for manufacturing a material roll, a support member that is stretched over one side of the packaging sheet so as to be movable in a direction perpendicular to the longitudinal direction of the long packaging sheet that is continuously fed out, and a break that is fed out A cut tape feeding auxiliary member attached to the support member so as to support a cut tape for use, a drive means, an eccentric rotation member attached to the drive means, and the drive means via the eccentric rotation member; And a power transmission member that converts the motion of the eccentric rotating member, which is communicated, to a reciprocating motion and transmits the reciprocating motion to the support member.

The packaging material roll with an opening means of the present invention is mounted on a packaging sheet in a state where a cut tape for breaking meanders with a constant runout width. Therefore, in the packaging material roll wound in a roll shape, the cut tapes for breaking mounted on the packaging sheet are displaced from each other without directly overlapping each other.
Therefore, when a continuous long packaging sheet with a cutting tape for breaking along the longitudinal direction is rolled into a packaging material roll with an opening means, the portion where the cutting tape is attached is raised Is expanded with a certain width, so that the degree of roll-up can be suppressed to be small. In addition, since the degree of roll-up becomes small, it is possible to cope with movement and storage of the packaging material roll without any trouble, and it is possible to further increase the length of the packaging sheet that can be wound.

Moreover, the manufacturing method of the packaging material roll with an opening means of this invention includes the process of mounting | wearing one side of a packaging sheet, sending out the cutting tape for a fracture | rupture so that it may meander with a fixed runout width. In this process, when the breakable cut tape is mounted along the longitudinal direction of the continuous long packaging sheet, the breakable cut tape to be sent out is swung with a constant swing width. . Therefore, the mounting of the cutting tape for breakage on the packaging sheet and the peristalsis of the cutting tape for breakage are performed substantially simultaneously without any trouble.
Therefore, a packaging material roll with an unsealing means that is easily mounted in a state in which a cutting tape for breaking meanders with a constant swing width along the longitudinal direction of a continuous long packaging sheet wound in a roll shape. It can be manufactured efficiently.

Moreover, the manufacturing apparatus of the packaging material roll with an opening means of the present invention includes a support member to which a cut tape feeding auxiliary member for supporting a cut tape to be sent out is attached, a drive means to which an eccentric rotation member is attached, A power transmission member that converts the movement of the eccentric rotating member into a reciprocating motion and transmits the reciprocating motion to the support member. Therefore, the movement of the eccentric rotating member accompanying the operation of the driving means is converted into a reciprocating motion by the power transmission member and transmitted to the support member, and the support member is swung in a direction orthogonal to the longitudinal direction of the packaging sheet. The cut tape feed assisting member attached to can be similarly slid.
Therefore, a method of manufacturing a packaging material roll with an opening means including a step of mounting the cutting tape supported by the cutting tape feeding auxiliary member on one side of the packaging sheet while feeding it so as to meander with a constant swing width is implemented. can do.

It is the perspective view which shows the packaging material roll with an opening means which concerns on this invention, and the front view which shows the packaging material formed by cut | disconnecting separately to desired length. It is a partial expanded sectional view which shows an example of the method of mounting the cut tape for a fracture | rupture with respect to a packaging sheet in the packaging material roll with an opening means which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows schematically an example of the apparatus which manufactures the packaging material roll with an opening means which concerns on this invention, Comprising: (A) The top view which shows the 1st state which meanders the cut tape for a fracture | rupture, (B) It is a top view which shows a 2nd state. FIG. 4 is a side view of the apparatus schematically shown in FIG. 3. It is the (A) inner surface side top view and (B) outer surface side top view which show the packaging material formed by cut | disconnecting the packaging material roll with an opening means which concerns on this invention separately to desired length. The case where an article is covered with the packaging material shown in FIG. 5 will be described. (A) A plan view of a state where the article is placed on the packaging material; (B) a state where the article is placed on the packaging material It is a perspective view of the state of wrapping the article placed on (C) the packaging material. As other marks applied to the outer surface of the packaging material roll with opening means according to the present invention, (A) a partially enlarged plan view showing a state in which a checkered pattern is given, (B) a partially enlarged plane showing a state in which a character string is given FIG. It is the elements on larger scale which show the other example which gave the character string as a mark on the outer surface of the packaging material roll with an opening means which concerns on this invention.

Next, an example of an embodiment of the present invention will be described with reference to the drawings.
Although the embodiments described below are preferred specific examples of the present invention, various technical limitations are applied. However, the scope of the present invention is described as being particularly limited in the following description. As long as it is not, it is not restricted to these forms.

  As shown in FIG. 1, a packaging material roll with opening means (hereinafter simply referred to as “packaging material roll”) 10 in the present invention is composed of a long packaging sheet 1 and a cutting tape 2 for breaking. Then, the cut tape 2 is mounted in a meandering manner with a constant swing width along the longitudinal direction of the continuous packaging sheet 1 wound in a roll shape.

  The packaging sheet 1 is a flexible thin sheet body capable of covering and packaging an article to be packaged, and the material is particularly limited as long as it can be broken by the cut tape 2. is not. As such a packaging sheet 1, for example, a paper material such as kraft paper, a film made of a synthetic resin material, an aluminum foil, or a combination of a paper material and a synthetic resin material (specifically, craft paper, etc. Coated with polyolefin resin or bonded with polyolefin resin film), a combination of paper and aluminum foil (specifically foil paper with aluminum foil bonded to pulp paper), or aluminum foil And a synthetic resin material (specifically, a polyolefin resin is applied to an aluminum foil or a polyolefin resin film is bonded).

Kraft paper is a general term for strong paper made from kraft pulp, and is desirable as a packaging material because of its good moisture resistance, printability and processability.
Moreover, as paper materials other than kraft paper, it is possible to use stretched paper having stretch characteristics in the length direction. Stretched paper is obtained by shrinking paper by a method such as clucking, for example, to obtain stretch characteristics, and a so-called stretched paper is known. Such stretched paper has tearing directionality, and is less likely to spread when the packaging sheet 1 is torn, and can be broken cleanly.

The cutting tape 2 efficiently and cleanly opens the packaging material 11 formed by cutting the packaging sheet 1 individually into a desired length from the packaging material roll 10 without damaging the package. And it is a means for opening so that it can carry out easily, Comprising: It is a strip | belt-shaped body which has sufficient intensity | strength to fracture | rupture the packaging material 11 (packaging sheet 1). That is, the cut tape 2 is formed using a material having a strength higher than that of the packaging sheet 1.
As such a cut tape 2, what was formed, for example with synthetic resin materials, such as a polypropylene (PP) and a polyethylene terephthalate (PET), can be used.

  Further, the cut tape 2 may be a string (linear) body having a small width such as a nylon thread or a metal wire. However, if it is in the shape of a string, the contact area with respect to the packaging sheet 1 is small and the mounting strength due to the adhesive or heat welding is inferior, and it peels off from the packaging sheet 1 during the opening operation of pulling the cut tape 2 and falls off. There is a fear.

Therefore, it is desirable that the cut tape 2 is a belt-like body having a large contact area with the packaging sheet 1. If it does so, it will become what the mounting strength with respect to the packaging sheet 1 increased, and it shall be able to perform an opening operation reliably, without the cut tape 2 peeling from the packaging sheet 1 during the opening operation which pulls the cutting tape 2. FIG. it can.
Therefore, the cut tape 2 is preferably formed of a synthetic resin material in a band shape.

  Note that, depending on the synthetic resin material used as the cut tape 2, it may be stretched by being pulled when being attached to the packaging sheet 1. If the cut tape 2 is stretched, floating occurs in the mounting on the packaging sheet 1, and the mounting strength is reduced. That is, when the cut tape 2 in a state where the adhesive for mounting on the packaging sheet 1 is previously applied on one side is stretched, the adhesive is not applied on one side of the cut tape 2 or the adhesive is not applied. An insufficient part is generated, and this part becomes a floating that is not attached to the packaging sheet 1.

  In addition, if the cut tape 2 is stretched, it shrinks to return to its original state after being attached to the packaging sheet 1, and the packaging sheet 1 may be wrinkled at the portion where the cut tape 2 is attached. There is. Such wrinkles tend to be suppressed when the above-described kulpack is used as the packaging material sheet 1, but the float that is not attached to the packaging sheet 1 cannot be suppressed. Therefore, it is desirable that the synthetic resin material used for the cut tape 2 is a material having low extensibility, for example, polypropylene (PP).

  Further, the thickness of the cut tape 2 is not particularly limited, but when the packaging sheet 1 with the cut tape 2 is wound into a roll shape to form a packaging material roll 10, the cut tape 2 is formed on the outer surface thereof. In order to reduce the thickness of the attached portion, it is desirable that the thickness is as thin as possible. On the other hand, if the thickness is too thin, the strength of the cut tape 2 may be cut off while the packaging sheet 1 is broken.

  The strength of the cut tape 2 is not simply determined by its thickness, but depends on the type, width and thickness of the material used for the cut tape 2, and can be designed in various ways as required. By the way, when the applicant conducted a test to break the kraft paper using the polypropylene cut tape 2 and examined variously, in the case of the polypropylene cut tape 2, the width and thickness were approximately 4 mm wide and 0 mm thick. The one with a thickness of 0.06 mm (60 μm) was desirable because the thickness was satisfactory and the thickness was thin.

  Further, the wobbling swing width when the cut tape 2 is attached to the packaging sheet 1 is not particularly limited, and can be set to such a swing width that the opening operation of the packaging material 11 can be easily performed. Further, the runout width of the cut tape 2 is constant, but the term “constant” here refers to a runout width that allows the opening operation of the packaging material 11 to be performed without any trouble as described above. Therefore, as long as it is within the range of the predetermined swing width, even if it meanders regularly with the same swing width, the swing width is the same, but the swing length (period) is different and the meander is irregular. Alternatively, it may meander irregularly with different swing widths.

  By the way, when the applicant conducted a test to break the kraft paper using a polypropylene cut tape 2 having a width of 4 mm and a thickness of 0.06 mm, and various studies were made, the runout width of the cut tape 2 was 20 to 45 mm. The range was preferred, and it was desired to be in the range of 25-30 mm.

  In FIG. 1, the packaging material roll 10 is shown in a state of being wound in a roll shape with the surface 1 a on which the cut tape 2 meandering with a constant runout width Tw is mounted as the desired length. It is shown that the individual packaging material 11 is formed from the packaging material roll 10 by being cut along the II line indicated by the alternate long and short dash line.

  Moreover, in the packaging material roll 10 of this invention, when the cut tape 2 coat | covers articles | goods using the packaging material 11, as shown in FIG. Avoiding this, the inner surface 1a of the packaging sheet 1 is mounted using an adhesive or the like. This heavy deposition region α is a region that may be used for stacking and pasting the packaging material 11, and not all of the heavy deposition region α is necessarily pasted.

  Therefore, the cut tape 2 in the packaging material roll 10 has a constant runout width Tw on its inner surface 1a, avoiding a constant width on the end side in the packaging sheet 1 that becomes the overlapping region α when used as the packaging material 11. It is to be worn in a meandering state.

  In the packaging material 11 to which the cut tape 2 is mounted in this way, the breakage of the packaging material 11 by the cut tape 2 is increased in strength as compared to the overlapping region (that is, the region not overlapped and pasted). It is possible to perform the unsealing operation smoothly and cleanly without being caught by α) or being cut by the cut tape 2 in the middle.

  Further, for example, every time the packaging sheet 1 is wound, the cut tape 2 meanders so as to be displaced at least by an amount corresponding to the length of the width 2w of the cut tape 2 (within the region in the runout width direction). It is desirable that it is installed in a state where When the cutting tape 2 is attached to the packaging sheet 1 in such a meandering state, the cutting tape 2 attached to the upper packaging sheet 1 and the cutting tape attached to the lower packaging sheet 1 are wound when the packaging sheet 1 is wound. 2 may not overlap. Therefore, the area | region where the cut tape 2 was provided in the outer surface of the packaging material roll 10 is wound efficiently, maintaining more flatness.

  In FIG. 2, each time the packaging sheet 1 is rolled and overlapped, the packaging material roll 10 is displaced by an amount corresponding to the length of the width 2 w of the cutting tape 2 and is attached to the upper packaging sheet 1. It is shown that the tape 2 and the cut tape 2 mounted on the lower packaging sheet 1 do not overlap with each other in the upper and lower directions, and the cut tape 2 is folded and meandered with a constant swing width Tw.

  Further, in the present invention, as shown in FIG. 1, a packaging material roll in which small broken lines (so-called breaking perforations) 5 for cutting are formed in the packaging sheet 1 along the vicinity of the cut tape 2. 10 can be used.

  The breaking perforation 5 assists the breaking of the packaging material 11 by the cut tape 2. The breaking perforations 5 can be formed in the vicinity of one side or both sides along the length direction of the cut tape 2. Further, when the breaking perforations 5 are formed in the vicinity of both sides along the length direction of the cut tape 2, the interval between the break perforations 5 is at least the runout width of the cut tape 2 to be mounted meandering. It is approximately equal to Tw or slightly wider.

In this way, by forming the perforation 5 for breaking along the cut tape 2, the packaging sheet 1 is easily broken along the breaking perforation 5 without disturbing the breaking state of the packaging sheet 1. It is possible to assist the breakage of the packaging sheet 1 with the cut tape, and to efficiently and cleanly break the packaging sheet.
In FIG. 1, the breaking perforation 5 is shown as being formed on one side in the vicinity of both sides along the length direction of the cut tape 2 attached to the packaging sheet 1.

Moreover, in this invention, as shown in FIG. 1, the packaging material roll 10 by which the mark 8 which can be visually recognized was given to the outer surface 1b equivalent to the position where the cut tape 2 in the packaging sheet 1 was mounted | worn, and can do.
That is, the mark 8 is exposed not only by the outer surface 1b of the packaging material 11 which is exposed by being wound around the article in a single layer but also by being wound around the article several times. The outer surface (that is, outermost surface) 1b of the packaging material 11 is provided along the cut tape 2 so as to be visible.

  Therefore, in the case of the packaging material 11 sized so as to be wound around the article, the mark 8 is applied to the outer surface 1b (back side) of the packaging sheet 1 corresponding to the position where the cut tape 2 is attached. Will be. On the other hand, in the case of the packaging material 11 sized to be wound around the article several times, the packaging sheet is set to the length of the outer peripheral surface of the article to be packaged based on the position where the cut tape 2 is attached. A mark 8 is provided on the outer surface 1b of the packaging sheet 1 corresponding to the distance multiplied by the number of times of winding 1.

  In the case of the packaging material 11 having a size that is to be wound around the article several times, the mark 8 only needs to be applied to the outermost surface 1b of the packaging sheet 1 when it is wound. However, one (single) layer may be provided for each position corresponding to the length of the outer peripheral surface of the article with reference to the position where the cut tape 2 is mounted.

  The mark 8 is preferably a band-like colored region having a color different from that of the packaging sheet 1 and is preferably larger than the width of the cut tape 2. Specifically, for example, a band-like colored region equal to the swing width Tw of the cut tape 2 can be used.

Thus, the position of the cut tape 2 can be easily found at a glance by applying the mark 8 having a color different from that of the packaging sheet 1 to the outer surface 1b of the packaging sheet 1.
In FIG. 1, a mark 8 is obtained by printing a belt-like colored region along the length direction on the outer surface 1 b of the packaging sheet 1 (packaging material 11) when it is wound around the article in a single layer. Is shown as

Further, although not shown, the mark may be a three-dimensional protrusion having a hemispherical shape or a disk shape. Even in the case of the projecting body, it is desirable that a color different from that of the packaging sheet 1 is applied so that it can be easily found at a glance.
However, in the case of a protrusion, a protrusion with a small protrusion may be difficult to find at a glance, while a protrusion with a large protrusion will increase in thickness and become bulky. Need attention.

  In FIG. 1, a packaging material roll 10 is provided with a cut tape 2 on its inner surface 1a while avoiding the overlapping region α, and with a visible mark 8 on its outer surface 1b. The perforation 5 is shown as being formed in the vicinity of both sides along the length direction 2.

Next, an example of the manufacturing method and manufacturing apparatus of the packaging material roll 10 of this invention is demonstrated.
As shown in FIGS. 3 and 4, first, the packaging sheet 1 is continuously fed out from a base paper roll (not shown, but arranged on the left side in the figure). This roll is supported by a reel (winding shaft), and a wrapping sheet 1 such as craft base paper is fed from the base paper roll to a position where the cut tape 2 is mounted via a tension roller and a reverse roller. A white arrow in the figure indicates a feeding direction of the packaging sheet 1.

  Next, the cut tape 2 is fed out from a cut tape roll (not shown but arranged on the right side in the figure), and the cut tape 2 is mounted on one surface of the packaging sheet 1 while being swung so as to meander with a constant swing width. To do. The cut tape roll is also supported by a reel (winding shaft), and the cut tape 2 is fed from the cut tape roll in conjunction with the feed speed of the packaging sheet 1. The black arrow in the figure indicates the direction of feeding the cut tape 2.

  The cut tape 2 fed out is supported by the manufacturing apparatus of the packaging material roll 10 of the present invention so as to be shaken immediately before being mounted on the packaging sheet 1. This manufacturing apparatus includes, for example, a cut tape feed assisting member 21 that supports the cut tape 2 to be fed out, a support member 22 to which the cut tape feed assisting member 21 is attached, a drive unit 23, and a drive unit. The eccentric rotation member 24 and the power transmission member 25 that converts the movement of the eccentric rotation member 24 into a reciprocating motion and transmits it to the support member 22 can be provided.

The cut tape feeding auxiliary member 21 is a disk-shaped groove having a groove for supporting the cut tape 2 on the peripheral surface, which is attached with the support member 22 as an axis so as to determine the position of mounting the cut tape 2 on the packaging sheet 1. It is a guide roll with.
The support member 22 is a rod-shaped shaft that is stretched over one surface side of the packaging sheet 1 so as to be movable in a direction orthogonal to the longitudinal direction of the packaging sheet 1 that is continuously fed out.

The drive means 23 is a variable speed motor.
The eccentric rotating member 24 is a cam that is detachably attached to the driving means 23. Since the deflection width of the cut tape 2 is determined by the degree of eccentricity of the eccentric rotation member 24, the deflection width of the cut tape 2 can be adjusted by appropriately changing (replacement) the size of the eccentric rotation member 24. it can.

  The power transmission member 25 is a rack that sandwiches the eccentric rotation member 24 in which two claw portions 25a and 25b are arranged with a constant interval. The power transmission member 25 is in communication with the drive means 23 via the eccentric rotation member 24 and is fixedly attached to one end side of the support member 22.

  By using such a manufacturing apparatus, the power transmission member 24 converts the movement of the eccentric rotation member 24 accompanying the operation of the driving means 23 into a reciprocating motion and transmits it to the support member 22, and is orthogonal to the longitudinal direction of the packaging sheet 1. The support member 22 is swung in the direction to move. Then, the cut tape feed assisting member 21 attached to the support member 22 swings in the same manner, and the cut tape 2 can be fed while swinging so as to meander with a constant swing width.

  That is, when the eccentric rotating member 24 comes into contact with one claw portion 25a of the power transmission member 25 in accordance with the operation of the driving means 23 and operates to push in the claw portion 25a, the support member attached to the power transmission member 2 22 moves in the direction indicated by the dashed-dotted arrow in the figure. Then, the cut tape feeding auxiliary member 21 attached to the support member 22 moves in the same direction (see FIG. 3A). On the other hand, when the eccentric rotating member 24 comes into contact with the other claw portion 25b of the power transmission member 25 in accordance with the operation of the driving means 23 and operates to push in the claw portion 25b, the support member attached to the power transmission member 2 22 moves in a direction indicated by a two-dot chain arrow in the figure. Then, the cut tape feeding auxiliary member 21 attached to the support member 22 moves in the same direction (see FIG. 3B).

  Therefore, by repeating these operations continuously, the cut tape feed assisting member 21 swings with a constant swing width, and the cut tape 2 supported by the cut tape feed assisting member 21 meanders with a constant swing width. It will be a thing.

  And although the cut tape 2 sent out via the cut tape feed auxiliary member 21 is mounted on one surface of the packaging sheet 1, the method is not particularly limited. Therefore, for example, as shown in FIG. 4, the cut tape 2 is pushed out by the fed packaging sheet 1 by arranging the position where the cut tape 2 is fed out so as to exceed the position where the packaging sheet 1 is fed out. The cut tape 2 may be attached with tension. At this time, one surface of the cut tape 2 in contact with the packaging sheet 1 is preliminarily coated with an adhesive.

  In FIG. 4, the packaging sheet 1 is sent out by the reversing roll 26, while the cut tape 2 is sent out by the cut tape feeding auxiliary member 21 positioned upstream of the position of the reversing roll 26 from which the packaging sheet 1 is sent out. It is shown. Therefore, the cut tape 2 fed out through the cut tape feed assisting member 21 is pushed by the packaging sheet 1 fed out through the reverse roll 26, and the tension toward the upstream side where the packaging sheet 1 is fed out is applied to the cut tape 2. It is a thing to hang.

  In addition, the mounting method of the cut tape 2 with respect to one surface of the packaging sheet 1 is not limited to this, The cut tape 2 sent out is pressed from the other surface side to which the adhesive agent is not previously applied, and is crimped to the packaging sheet 1. You may do it.

And the packaging sheet 1 with which the cut tape 2 was mounted is wound up on a reel (winding shaft).
By the above, the packaging material roll 10 of this invention with which the cut tape 2 was mounted | worn along the longitudinal direction of the packaging sheet 1 wound by roll shape can be manufactured.

  The packaging material roll 10 of the present invention produced as described above is used by appropriately cutting the packaging sheet 1 in accordance with the size (length) of the article to be packaged as described above. It cuts along the dashed-dotted line shown inside, and is used as the single packaging material 11.

  As shown in FIG. 5, the packaging material 11 is provided with a slight notch 6 on the edge of the packaging material 11 on the end side in the length direction of the cut tape 2, and the end of the cut tape 2 is formed by the notch 6. It is possible to efficiently perform the unsealing work by forming the knob portion 7 that grips the fingertip with the fingertip. Moreover, the packaging material 11 shall be provided with the adhesion layer 9 in the one surface side in any one of the winding start end part side or the winding end end part side. The adhesive layer 9 is a means for fixing the end of the packaging sheet 1 wound after the peripheral sheet surface of the article is covered with the packaging sheet 1.

  5A and 5B, the packaging material 11 is provided with cuts 6 and 6 in the vicinity of both sides so as to sandwich the lengthwise end of the cut tape 2, and is sandwiched between the two cuts 6 and 6. While being picked, a knob 7 is formed, and an adhesive layer 9 is provided on the inner surface 1a of the packaging sheet 1 at the end opposite to the end of the packaging sheet 1 having the overlapping region α. It is shown as

Next, a case where an article is covered with the packaging material 11 formed as described above will be described.
First, as shown in FIG. 6 (A), the article M is placed along the length direction of the cut tape 2 at a substantially central portion on the inner surface 1a side of the packaging material 11 made of a rectangular sheet. . As described above, the packaging material 11 is formed by pulling the packaging sheet 1 from the packaging material roll 10 and cutting it, and the packaging material 11 is appropriately sized according to the size (length) of the article M to be packaged. It can be adjusted.
In FIG. 6A, the packaging material 11 is a rectangular sheet having one side that is large enough to wrap around the circumferential body surface of the article M and one side that is slightly longer than the length of the article M. Shown as body.

Next, as shown in FIG. 6 (B), the packaging material 11 is placed on the peripheral body surface of the article M so that the two opposite ends of the packaging material 11 are overlapped with each other according to the dashed line arrow in the figure. Wrap to cover. At this time, if the adhesive layer 9 is provided on either the inner surface 1a on the winding end portion side or the outer surface 1b on the winding start end portion side of the packaging material 11, the attaching operation of the overlapping portion is efficiently performed. Can be.
In FIG. 6B, the adhesive layer 9 is shown as being provided on the inner surface 1a on the winding end end side in the packaging material 11.

And after wrapping the article M as shown in FIG. 6 (C), the edge portions of the wrapping material 11 protruding to both ends in the longitudinal direction of the cut tape 2 are folded inward and wrapped in a cylindrical body. Package.
If it does so, the mark 5 given to the outer surface 1b of the packaging material 11 will be exposed on the surface, and the article M will be wrapped.

  And in opening of this package, first, the edge part of the folded packaging material 11 is raised, and the knob | pick part 7 provided in the edge part of the packaging material 11 is exposed. Next, the knob portion 7 is picked and the cut tape 2 is pulled toward the other end side to break the packaging material 11. If it does so, the packaging material 11 will be cut | disconnected beautifully along the cut tape 2, can perform an opening operation | work efficiently, and can take out the article | item M easily.

As described above, according to the present invention, since the cut tape 2 is attached to the packaging sheet 1 in a meandering manner with a constant swing width Tw, in the packaging material roll 10 wound in a roll shape, the packaging sheet The cut tapes 2 attached to 1 are displaced from each other without directly overlapping each other.
Therefore, the swell of the part to which the cut tape 2 is attached is expanded with a constant width equal to the runout width Tw, and the degree of roll-up can be suppressed to be small. And the length of the packaging sheet 1 which can be wound can be lengthened more because the grade of the roll thickness in the packaging material roll 10 becomes small.

  The applicant winds 3000m by mounting the cut tape 2 made of polypropylene having a width of 4mm and a thickness of 0.06mm on a wrapping sheet 1 made of kraft paper with a thickness of 0.08mm. When the packaging material roll 10 was manufactured, the winding diameter of the packaging material roll 10 was 620 mm, but the raised height of the portion where the cut tape 2 was attached was about 1.0 to 2.0 mm, The material roll 10 can be moved and stored without any sense of incongruity.

  In addition, the packaging material roll 10 of the present invention is devised such that when the cut tape 2 is mounted along the longitudinal direction of the continuous packaging sheet 1, the cut tape 2 fed out is swung with a constant swing width Tw. The mounting of the cut tape 2 on the packaging sheet 1 and the peristalsis of the cut tape 2 can be performed substantially simultaneously without any trouble, and can be manufactured efficiently.

  In addition, in embodiment mentioned above, although the mark was demonstrated as a strip | belt-shaped coloring area | region, the mark of this invention can also be made into the strip | belt-shaped pattern area | region and character string from which the color differs from the packaging sheet 1. FIG. That is, like the belt-like colored region, a belt-like pattern region having a different color or a mark made of a desired character string is applied along the length direction of the cut tape 2 on the outer surface 1b of the packaging sheet 1 It is also good.

FIG. 7A shows an example in which a mark 18 made of a band-shaped checkered pattern region is applied to the outer surface 1b of the packaging sheet 1.
7B shows an example in which the outer surface 1b of the packaging sheet 1 is repeatedly provided with a character string “opening tape” and a mark 28 made up of a white arrow.

Furthermore, in the present invention, when the mark is made of a desired character string, the direction of at least one of the plural character strings may be displayed in reverse.
Thus, by reversing the direction of some of the character strings in the plurality of character strings, it is possible to determine the character of the mark 28 regardless of which side the unwrapper is on when opening the packaging material 11. It will be a thing.

  In FIG. 8, the outer surface 1b of the packaging sheet 1 has a character string "opening tape" and a white arrow on the left side, and a mark 28A consisting of a first character string with the left side up, and a right side up. An example is shown in which the mark 28 </ b> B formed of the second character string is provided with the mark 28 provided repeatedly three times in the process of rotating the printing roll once.

  M article (packaged body), Tw swing width, α layering area, 1 packaging sheet, 1a inner surface, 1b outer surface, 2 cut tape (opening means), 5 perforation for breaking (opening assisting means), 6 notch, 7 Knob section, 8 marks, 9 adhesive layer, 10 packaging material roll, 21 auxiliary member (guide roll with groove), 22 support member (shaft), 23 drive means (variable speed motor), 24 eccentric rotating member (cam) 25 Power transmission member (rack).

The packaging material roll with an opening means of the present invention is a packaging material roll with an opening means on which a cutting tape for breaking is attached along the longitudinal direction of a continuous long packaging sheet wound in a roll shape. The cut tape is meandered with a constant swing width , and is mounted on the packaging sheet so that the packaging sheet does not overlap each other up and down each time the packaging sheet is rolled up and overlapped .

Moreover, the manufacturing method of the packaging material roll with an opening means of this invention is the packaging with the opening means to which the cutting tape for a fracture | rupture was mounted | worn along the longitudinal direction of the continuous long packaging sheet wound by roll shape. A method of manufacturing a material roll, a process of continuously feeding a long packaging sheet, meandering with a constant swing width , and breaking so as not to overlap each other when the packaging sheet is wound once and overlapped The method includes at least a step of attaching the cut sheet to the one surface of the packaging sheet while feeding the cut tape, and a step of winding the packaging sheet on which the cut tape is mounted in a roll shape.

Claims (10)

A packaging material roll with an opening means on which a cutting tape for breaking is mounted along the longitudinal direction of a continuous long packaging sheet wound in a roll shape,
A packaging material roll with an opening means, wherein the cut tape is attached to a packaging sheet in a meandering state with a constant swing width.   2. With the unsealing means according to claim 1, wherein the cut tape is mounted so as to be displaced by an amount corresponding to at least the width of the cut tape every time the packaging sheet is wound once. Packaging material roll.   The packaging material roll with an opening means according to claim 1 or 2, wherein the packaging sheet is kraft paper.   The packaging material roll with an opening means according to claim 1 or 2, wherein the packaging sheet is stretched paper having a stretching property in a length direction.   The packaging material roll with an opening means according to any one of claims 1 to 4, wherein the packaging sheet has a broken-line-shaped small hole along the vicinity of the cut tape.   The unwrapping according to any one of claims 1 to 5, wherein the packaging sheet is provided with a visible mark on an outer surface corresponding to a position where the cut tape is mounted. Packaging roll with means.   The packaging material roll with an opening means according to claim 6, wherein the mark is a character string having a color different from that of the packaging sheet.   The packaging material roll with an opening means according to claim 7, wherein the character string is displayed in a reverse direction of at least one of the plurality of character strings. A method for producing a packaging material roll with an opening means on which a cutting tape for breaking is mounted along the longitudinal direction of a continuous long packaging sheet wound in a roll,
A process of continuously sending out long packaging sheets,
Attaching to one side of the packaging sheet while feeding a cut tape for breaking so as to meander with a constant swing width;
A step of winding the packaging sheet on which the cut tape is mounted in a roll,
The manufacturing method of the packaging material roll with an opening means characterized by including at least. An apparatus for producing a packaging material roll with an unsealing means mounted with a cutting tape for breaking along the longitudinal direction of a continuous long packaging sheet wound in a roll,
A support member spanned on one side of the packaging sheet so as to be movable in a direction orthogonal to the longitudinal direction of the long packaging sheet that is continuously fed;
A cut tape feed auxiliary member attached to the support member so as to support the cut tape to be sent out;
Driving means;
An eccentric rotating member attached to the driving means;
A power transmission member that communicates with the drive means via the eccentric rotation member, converts the movement of the eccentric rotation member into a reciprocating motion, and transmits the reciprocating motion to the support member;
An apparatus for producing a packaging material roll with an opening means.

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