JP2005206224A - Packaging sheet, and method of producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging sheet which is for use in covering and blocking an opening of a pack or a box at an upper end thereof, for instance, and is restickable and good in handling efficiency. <P>SOLUTION: The packaging sheet 11 is to be laid and fixed onto a packaging object 27, and has an adhesive portion 13 for fixing the sheet to the packaging object 27 on a part. The adhesive portion 13 is formed of at least an adhesive layer 14, and a releasing sheet 15 covering the adhesive layer 14. Further the releasing sheet 15 has at least one separating line 16 to laterally divide the releasing sheet 15 into a plurality of pieces. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a packaging sheet used on an article, and more particularly to a packaging sheet that can be easily re-applied even after packaging.

  As a packaging form to cover the packaging sheet, there is a type disclosed in Patent Document 1 below.

  In this packaging form, the upper end opening of a bottomed box-shaped packaging container is closed with a transparent packaging sheet. There are various packaging containers such as a paper container as in Patent Document 1, a cardboard or cardboard box, and a resin pack 101 as shown in FIG.

  In the packaging sheet 102 used in this packaging form, an adhesive portion 103 is formed by applying a double-sided adhesive tape to both side portions which are fixed portions to the packaging container (see FIG. 9).

  However, with the packaging sheet 102 having such a configuration, once it is peeled off, it cannot be fixed again.

  If it cannot be fixed again, it may be inconvenient when packaging fruits and vegetables, for example.

  In the case of fruits and vegetables such as strawberries, grapes, peaches, peaches, pomegranates and vegetables, some are shipped in boxes and packed by farmers, but it takes a certain number of days from shipment to the store. For this reason, since some things may hurt, it is necessary to check the contents and replace the damaged items when arranging them in the store.

  However, the packaging sheet 102 having the above-described configuration cannot be attached again.

  For this reason, it was considered to use the packaging sheet 102 having the adhesive portion 104 as shown in FIG.

  The adhesive portion 104 in FIG. 10 has a structure in which double-sided adhesive tapes are doubled. In manufacturing, the first double-sided adhesive tape 105 is attached to a predetermined position of the packaging sheet 102 and then the second double-sided adhesive tape. The release paper 105a of the first double-sided adhesive tape 105 is bonded to the release paper 105a while peeling the release paper of the tape 106.

  However, since the release agent is applied to the surface of the release paper 105a of the first double-sided pressure-sensitive adhesive tape 105 to which the second double-sided pressure-sensitive adhesive tape 106 is to be applied, it is not attached even if it is simply pasted, and processing that enables adhesion. is required. Also, care must be taken not to shift the position when bonding. For this reason, there is a drawback that production efficiency is poor.

  In addition, since the double-sided adhesive tape is double stacked, only the adhesive portion 104 becomes bulky, and there is a problem that handling is inconvenient. In addition, the double is the limit when handling is considered.

Registered Utility Model No. 3076512

  Then, this invention makes it a main subject to provide the sheet | seat for packaging which can be reapplied. Another object of the present invention is to provide a packaging sheet with good handleability and to improve the production efficiency of the packaging sheet.

  Means therefor is a packaging sheet partially having an adhesive part for fixing to the article to be packed and fixed on the article to be packaged, and the adhesive part is at least an adhesive layer, The packaging sheet is formed by a release sheet that covers the pressure-sensitive adhesive layer, and at least one separation line is formed on the release sheet to divide the release sheet into a plurality of parts in the width direction. It is characterized by.

  That is, at the time of packaging, at least a part of the release sheet that can be divided into a plurality of parts in the width direction is separated from the separation line and peeled off to expose a part of the pressure-sensitive adhesive layer. And it fixes to a to-be-packaged object using this exposed part. When changing the inside, such as taking out the contents of the package, remove the fixed part of the adhesive layer, replace the contents, etc., and then peel off the remaining part of the release sheet when packaging again. Then, a part of the pressure-sensitive adhesive layer that has newly appeared is fixed to the packaged item, that is, reattached. If the release sheet can be divided into three or four parts, it can be reattached twice or three times.

  Note that if the release sheet is wider than the width of the pressure-sensitive adhesive layer, the release sheet may be easily peeled off.

  In addition, if the pressure-sensitive adhesive layer is formed by directly applying a pressure-sensitive adhesive to a packaging sheet, it is not necessary to separately manufacture a special double-sided pressure-sensitive adhesive tape, and it is easy to manufacture a packaging sheet. Yes.

  Another means is a pressure-sensitive adhesive application step of applying a pressure-sensitive adhesive to a part of the packaging sheet base material, a bonding step of bonding the release sheet to the part where the pressure-sensitive adhesive is applied, and a bonding release A separation line forming step for forming at least one separation line for dividing the release sheet into a plurality of sheets in the width direction of the sheet, and a packaging sheet base material on which the release sheet is bonded to a predetermined length It is a manufacturing method of the sheet | seat for packaging which has the cutting process to cut | disconnect, It is characterized by the above-mentioned.

  Still another means includes an adhesive application step of applying an adhesive to a part of the packaging sheet base material, and at least one of dividing the release sheet into a plurality of parts in the width direction at the site where the adhesive is applied. It is a method for producing a packaging sheet having a pasting step of pasting a release sheet having a separation line of a book and a cutting step of cutting the packaging sheet base material pasted with the release sheet into a predetermined length. It is characterized by.

  In addition, each of the above-mentioned separation lines is not limited as long as it can detach a necessary part of the release sheet when it is torn by hand, and it can be formed on the release sheet such as a perforation line or a ruled line for separation that does not penetrate. In addition to the cut line formed by cutting, the cut line formed by sticking the cut tape to be attached to the cut part, or when the release sheet can be torn in only one direction, only the notch at the end It may be a virtual disconnect line provided with.

  According to the present invention, the adhesive portion that is fixed to the package is formed with at least an adhesive layer and a release sheet that covers the adhesive layer, and the release sheet is attached to the release sheet. Since at least one separation line is formed so as to be divided into a plurality in the width direction, the belt-like pressure-sensitive adhesive layer can be divided into a plurality of times in the width direction. That is, it can be re-applied even after packaging.

  And the adhesive part which enables re-attachment is extended in the surface direction, and can reduce the thickness of an adhesive part compared with what laminated | stacked the double-sided adhesive tape on double. For this reason, handling of the packaging sheet is easy. Further, when the adhesive portion is formed by laminating double-sided adhesive tape in multiple layers, there is a possibility that the release sheet may be unexpectedly peeled off, but such inconvenience can also be avoided.

  Moreover, since the adhesive part of this invention can be formed by forming a separating line in a release sheet, manufacture is also easier compared with the case where a double-sided adhesive tape is laminated | stacked in multilayer conventionally.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view showing the back surface of the packaging sheet 11, and FIG. 2 is an exploded perspective view of the main part thereof. That is, the packaging sheet 11 is used by being hung on an article to be packaged, and is formed with fixing adhesive portions 13 extending in a belt shape on both side portions of a rectangular sheet body 12. The part 13 includes an adhesive layer 14 formed by applying an adhesive and a release sheet 15 that protects the adhesive layer 14.

  The material of the sheet body 12 is appropriately selected according to the type of the object to be packaged. For example, for the packaging of fruits and vegetables, if a transparent film made of OPP (biaxially stretched polypropylene film), CPP (unstretched polypropylene film), PE (polyethylene film), or the like is used, the inside can be seen. In addition, depending on the item to be packaged, it may be paper as well as a colored material.

  The release sheet 15 is a strip formed wider than the width of the pressure-sensitive adhesive layer 14, and is formed of an appropriate material such as a synthetic resin film or paper. A separation line 16 is formed at an intermediate position in the width direction so that the release sheet 15 can be divided into two in the width direction.

  FIGS. 1 and 2 show an example in which the separation line 16 is a perforation composed of holes continuous in a broken line shape. However, the separation line 16 is separated by manually pulling a part of the release sheet 15. Anything can be obtained.

  FIG. 3 shows another example of the separation line 16. FIG. 3A shows an example in which the separation line 16 made of a perforation is formed in a wavy shape, and FIG. 3B shows an example in which the separation line 16 made of a perforation is formed in a pulse wave shape. In addition, when the separating line 16 has these shapes, the separating line may be formed not by perforation but by continuous cutting.

  FIG. 3C is a cut line that is cut at the front side in the thickness direction of the release sheet 15 so as to be easily torn at that portion. That is, it is a separating ruled line made up of cuts that do not penetrate.

  FIG. 3D shows a cut line 16 formed by applying the cut tape 17. In the figure, 18 is a notch.

  FIG. 3E shows a release sheet 15 formed of a uniaxially stretched film having easy tearability on one side, the direction having easy tearability being the length direction, and notches 19 formed at the ends. That is, the separation line 16 in this example is a virtual separation line that is formed first from the notch 19 as illustrated by the virtual line.

  As shown in FIG. 4, the packaging sheet 11 having such a configuration has a pressure-sensitive adhesive coating process n <b> 1, a bonding process n <b> 2, and a separation line with respect to the sheet substrate 20 wound in a roll shape (see FIG. 5). It is manufactured through a formation process n3 and a cutting process n4.

  The separation line forming step n3 is preferably performed after the bonding step n2 when the separation line 16 is perforated, but depending on the form of the separation line 16, it may be performed before the bonding step n2. I can do it. For example, there are a case where the separation line 16 is a separation ruled line made of a cut that does not penetrate (see FIG. 3C), and a case where the separation line 16 is formed by applying a cut tape [see FIG. 3D]. In the case where the separation line 16 is configured with a virtual separation line formed on a release sheet made of a uniaxially stretched film [see FIG. 3 (e)], even when the separation line formation step n3 is not provided, at the time of the cutting step n4 It is only necessary to form the notch 19.

  In FIG. 5, the outline of the manufacturing process of the sheet | seat 11 for packaging was shown.

  On the sheet base material 20 to be sent out, first, the adhesive layer 14 having a predetermined width is formed on both sides of one side of the sheet base material 20 using the adhesive application device 21 and the adhesive application device 22 ( Adhesive application step n1). The pressure-sensitive adhesive is a part that sticks to the package, and the adhesive is used to make the pressure-sensitive adhesive firmly stick to the sheet substrate 20. Although not shown, drying is performed after the adhesive is applied.

  The adhesive application device 21 and the adhesive application device 22 are configured by known devices such as a roll coater.

  Next, the release sheet 15 is bonded to the pressure-sensitive adhesive layer 14 of the sheet base material 20 on which the pressure-sensitive adhesive layer 14 is formed (bonding step n2). The release sheet 15 is preferably a strip formed of a synthetic resin film or paper, and is formed slightly wider than the width of the pressure-sensitive adhesive layer 14. A release agent is applied to the bonded surface of the released release sheet 15 by the release agent application device 23. When the release sheet 15 having good peelability is used, the release agent coating device 23 can be omitted.

  Then, the release sheet 15 is bonded to the pressure-sensitive adhesive layer 14 of the sheet base material 20 by the pressing roller 24 to constitute the pressure-sensitive adhesive portion 13.

  After the bonding step n2, the process proceeds to a separation line forming step n3. That is, the separation line 16 is formed at the intermediate position in the width direction of the release sheet 15 by the separation line forming device 25. The separation line forming device 25 may be configured by a known half-cut device that cuts with a blade or a laser when the separation line 16 is a ruled line for separation composed of perforations or cuts that do not penetrate. Further, when the separation line 16 is formed by pasting the cut tape 17, it may be constituted by a pasting machine for pasting the cut tape 17.

  When the separation line 16 is formed with a virtual separation line, the separation line forming step n3 is not necessary.

  Moreover, the release sheet 15 in which the separation line 16 is previously formed by placing the separation line forming step n3 immediately before the bonding step n2, that is, by replacing the separation line forming step n3 and the bonding step n2 in FIG. The substrate 20 may be bonded immediately. The separation line forming device 25 can be configured with an inexpensive one made of a blade, and the manufacturing cost can be suppressed.

  Next, it transfers to the cutting process n4, the sheet | seat base material 20 with the adhesion part 13 is cut | disconnected to predetermined length, and the sheet | seat 11 for packaging is obtained. Cutting is performed by a known cutting device 26.

  In addition, when the notches 18 and 19 are required according to the form of the separating line 16, the notches 18 and 19 may be formed in the cutting step n4.

  The packaging sheet 11 configured as described above is such that the adhesive portion 13 can peel the release sheet 15 twice as shown in FIG.

  For this reason, it can be used as follows.

  FIG. 7 is an explanatory diagram showing an example of a usage pattern, and shows a case where a pack 27 for packaging fruits and vegetables is packaged as an object to be packaged.

  In other words, the packaging sheet 11 is used by covering the top opening of the pack 27 so that the release sheet can be peeled off in two steps when packing in the stage of shipping fruits and vegetables by farmers and associations. Only one of 15 is peeled off and put on the pack 27 as shown in FIG.

  Next, when the seller arranges the delivered packed fruits and vegetables at the store, if any of the fruits and vegetables packed in the pack 27 is damaged, it must be taken out and replaced. At this time, there is no need to consider re-packaging, and the packaging sheet 11 may be peeled off and the pack 27 may be opened as shown in FIG.

  After the necessary processing such as replacement is completed, the remaining release sheet 15 is peeled off to expose a new portion of the pressure-sensitive adhesive layer 14 as indicated by the phantom line in FIG. And as shown in FIG.7 (c), it sticks in the new part of the adhesive layer 14, and packaging is completed to the original state.

  Thus, since the adhesive layer 14 fixed with respect to a to-be-packaged object can be exposed in part twice, it can be affixed twice. That is, it is possible to re-apply even after packaging.

  In addition, the adhesive portion 14 that enables re-attachment is expanded in the surface direction, and the thickness of the adhesive portion 13 is larger than that of a double-sided adhesive tape that is double stacked (see FIG. 10). Can be thin. For this reason, handling of the packaging sheet 11 is easy. Moreover, when the double-sided pressure-sensitive adhesive tape is laminated in multiple layers to form the pressure-sensitive adhesive portion, the release sheet may be unexpectedly peeled off due to external force, but there is no such inconvenience.

  Moreover, since the adhesion part 13 should just apply | coat with respect to the sheet | seat base material 20, and should just form the cut-off line 16 in the release sheet 15, manufacture is easy.

  Furthermore, since the release sheet 15 is formed wider than the pressure-sensitive adhesive layer 14, the peeling operation can be easily performed by simply bending the sheet body 11, and the workability is good.

In correspondence between the configuration of the present invention and the configuration of the above-described embodiment,
The package of the present invention corresponds to the pack 27 of the above-mentioned one form,
The present invention is not limited to the configuration of the above-described one form.

  For example, the article to be packaged may be an article such as a product itself, not a container-like object such as a pack 27 or a box.

  Moreover, the adhesion part 13 is not formed continuously in strip | belt shape, for example, may be formed independently in the shape of a dot, or arranged in a line.

  Furthermore, when not forming all of the adhesive portions formed on the packaging sheet 11 with the adhesive portions 13 that allow re-attachment, only a part, for example, forming the adhesive portions on both sides as in the above example Alternatively, only one of the adhesive portions can be constituted by the adhesive portion 13 that enables re-attachment.

  Furthermore, in the case of a packaging sheet that is expected to be re-applied, the adhesive that is exposed by shifting the formation position of the separation line 16 so that the first fixation can be performed lightly to the extent of temporary fixing. It is preferable to make a difference in the area of the agent layer 14.

  In other words, when forming one separation line 16, as shown in FIG. 8A, the position of the separation line 16 is shifted to one side rather than the middle in the width direction. In the first fixing, the narrow portion of the release sheet 15 is peeled off and fixed.

  Further, as shown in FIG. 8 (b), two separation lines 16 and 16 are formed in the release sheet 15, and the interval between them is set to be narrower than the interval outside them. When fixing, the intermediate portion of the release sheet 15 is peeled off and fixed.

  Then, at the time of fixing again, all the remaining release sheets 15 are peeled off and the actual fastening is performed.

  In this way, by adjusting the area of the pressure-sensitive adhesive layer 14 to be exposed at the time of the first fixing and setting the first fixing force to be weak, it can be peeled off, so that the work such as the internal modification can be performed. The effect that it can be done quickly is obtained.

The back view of the sheet | seat for packaging. The perspective view of the principal part. The top view of a separation line. Process explanatory drawing of a manufacturing process. Explanatory drawing of a manufacturing process. The perspective view of an action state. Explanatory drawing of a use state. The top view of the adhesion part concerning other examples. The perspective view of the use condition of the conventional packaging sheet. The principal part perspective view of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Packaging sheet 13 ... Adhesive part 14 ... Adhesive layer 15 ... Release sheet 16 ... Disconnection line 20 ... Sheet base material 27 ... Pack n1 ... Adhesive application process n2 ... Pasting process n3 ... Disconnection line formation process n4 ... Cutting process

Claims (5)

A packaging sheet having a part of an adhesive portion for fixing to a packaged object to be fixed on the packaged object,
While forming the pressure-sensitive adhesive part with at least a pressure-sensitive adhesive layer and a release sheet covering the pressure-sensitive adhesive layer,
A packaging sheet in which at least one separation line is formed on the release sheet so as to divide the release sheet into a plurality of parts in the width direction. The packaging sheet according to claim 1, wherein the release sheet is wider than the width of the pressure-sensitive adhesive layer. The packaging sheet according to claim 1 or 2, wherein the adhesive layer is formed by directly applying an adhesive to a packaging sheet. A pressure-sensitive adhesive application step of applying a pressure-sensitive adhesive to a part of the packaging sheet substrate;
A bonding step of bonding the release sheet to the part where the adhesive is applied,
A separation line forming step for forming at least one separation line for dividing the release sheet into a plurality of the release sheets in the width direction with respect to the bonded release sheets;
The manufacturing method of the packaging sheet | seat which has the cutting process which cut | disconnects the sheet | seat base material for packaging on which the release sheet was bonded together to predetermined length. A pressure-sensitive adhesive application step of applying a pressure-sensitive adhesive to a part of the packaging sheet substrate;
A bonding step in which a release sheet having at least one separation line that divides the release sheet into a plurality of parts in the width direction is bonded to the part where the adhesive is applied, and
The manufacturing method of the packaging sheet | seat which has the cutting process which cut | disconnects the sheet | seat base material for packaging on which the release sheet was bonded together to predetermined length.

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