JP2003261115A - Device for sticking remoistening adhesive tape for packaging - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for sticking a remoistening adhesive tape for packaging, which makes it possible to unseal a corrugated board box or the like by easily breaking the base material of the adhesive tape without using a tool such as an edged tool even in the case where a general remoistening adhesive tape is stuck to a corrugated board box or the like. <P>SOLUTION: The device for sticking a remoistening adhesive tape for packaging is provided with a means for forming a nonaqueous wetting portion. A nonaqueous wetting portion extending in the lengthwide direction of the remoistening adhesive tape is formed at a central part of the tape, which is positioned in the width direction of its face coated with a remoistening adhesive. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rewetting adhesive tape applicator, and more particularly to a general rewetting adhesive tape for corrugated cardboard so that the base material of the adhesive tape can be easily broken and opened. The present invention relates to a rewetting adhesive tape applicator for packaging that can be applied to the like.

[0002]

2. Description of the Related Art Generally, in packaging such as corrugated cardboard,
A method of attaching rewetting adhesive tape, adhesive tape, or other packaging tape to the corrugated board joint is adopted. On the other hand, when opening these packages, a cutter or the like is used to cut the attached packaging tape along the joints of the corrugated board or to open the corrugated board as an adherend. However, in this unsealing method, since a blade such as a cutter is used, there is a risk that the unsealer may be injured or the packaged contents may be damaged.

As a method for solving these problems, when a rewetting adhesive tape is applied, a poly film made of poly film is provided between the adhesive surface of the rewetting adhesive tape and the corrugated board at a position along the joint of the corrugated board. A method has been proposed in which a guide member is inserted and the rewetting adhesive tape is broken by using this guide member when opening.

[0004]

However, in the above method, the guide member made of polyfilm can be made to follow the seam of the corrugated board, and the rewetting adhesive tape can be inserted at a position where it can be reliably broken. It was difficult. Further, this method requires a new member such as a guide member made of a poly film, and thus does not satisfy the cost requirement.

Therefore, according to the present invention, even when a general rewetting adhesive tape is attached to a corrugated cardboard or the like, the base material of the adhesive tape can be easily broken and opened without using a tool such as a knife. An object of the present invention is to provide a rewetting adhesive tape sticking device for packaging which is made possible.

[0006]

Therefore, the rewetting adhesive tape applying apparatus for packaging of the present invention is provided with a rewetting adhesive tape at the center in the width direction of the rewetting adhesive coated surface of the rewetting adhesive tape for packaging. It is characterized in that a means for forming a non-water-wetting portion extending in the length direction is provided.

According to the present invention, in the central portion in the width direction of the re-wetting adhesive coated surface of the re-wetting adhesive tape, the non-wetting portion extending in the length direction of the re-wetting adhesive tape, that is, wet with water or the like. It is possible to form a non-tacky region without adhesiveness, and when this non-water-wetted part is attached along the seam of the adherend, for opening, the base material of the rewetting adhesive tape or Since it is necessary to completely destroy the adherend, it can be used as a tamper-proof packaging tape or a tamper-proof packaging tape, and of course it is possible to prevent the contents from being pulled out. In the above, the base material can be broken by putting a finger on one end of the non-water-wetted portion, and the base material can be easily broken and opened without using a tool such as a blade.

Further, the rewetting adhesive tape applying apparatus for packaging of the present invention is provided with means for forming a grip portion having the same width as the non-water wetted portion at at least one end portion of the rewetting adhesive tape. Is the preferred embodiment. According to this aspect, it is possible to easily break the base material of the rewetting adhesive tape when opening. Further, in the present invention, it is also a preferable aspect to provide a means for forming a tear assisting mechanism at a position on the base material of the rewetting adhesive tape which is on both sides of the non-water wetted portion. According to this aspect, the base material of the rewetting adhesive tape can be more reliably destroyed along the non-water-wetting portion, and the opening can be more neatly opened.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be shown, and effects of the present invention will be described in more detail. However, the rewetting adhesive tape sticking device for packaging of the present invention,
It is not limited to these embodiments. Figure 1
It is the figure which showed typically one Embodiment of the rewetting adhesive tape sticking apparatus for packaging of this invention. In this apparatus, first, the re-wetting adhesive tape 1 wound into a roll is placed on the re-wetting adhesive tape feeding means 2, and one end of the re-wetting adhesive tape 1 has a re-wetting adhesive application surface. Facing downwards,
It is fed between the tape feeding roll 4 and the touch roll 5 via the guide roller 3. The tape feeding roll 4 is arranged so as to face the touch roll 5, and is configured to be driven and rotated by a drive motor (not shown). On the other hand, the touch roll 5 is configured to rotate while being driven by the tape feeding roll 4 while being pressed against it. Further, as the material of the feeding roll 4 and the touch roll 5, a material that causes frictional resistance to the rewetting adhesive tape 1 to such an extent that the rewetting adhesive tape 1 can be sandwiched between these rotating rolls and sent out If it is, it will not be specifically limited. With such a configuration, one end of the rewetting adhesive tape 1 is sandwiched between the tape delivery roll 4 and the touch roll 5 by the rotation of the drive motor, and the rewetting adhesive tape 1 can be delivered to the downstream side of the device.

The rewetting adhesive tape 1 thus fed is then cut in the width direction of the tape by the tape cutting means. As the tape cutting means 6, a generally known one can be used, but it is preferable that the tape cutting means 6 is configured to interlock with the pressing of the touch roll 5 against the tape feeding roll 4. In this configuration, it is necessary to movably install the touch roll 5, but the tape cutting means 6
Since the touch roll 5 can be separated from the tape feeding roll 4 via the arm or the like and the feeding of the rewetting adhesive tape 1 between the rolls 4 and 5 can be stopped together with the cutting operation of the adhesive tape 1 by 1. The rewetting adhesive tape 1 can be stopped and cut at the same time by one operation.

Further, in the tape cutting means 6 described above, a means for forming a grip portion having the same width as a non-water-wetting portion formed in a later step at at least one cut end portion of the rewetting adhesive tape 1. Is preferably provided. Since this grip portion has the same width as the non-water-wetted portion, it is in a state where it is not attached to an adherend such as a corrugated cardboard at all. Therefore, the grip portion can be easily grasped and pulled along the rewetting adhesive tape 1, and thus the base material of the rewetting adhesive tape 1 can be easily moved in the longitudinal direction without using a tool such as a knife. It can be torn and an adherend such as a cardboard can be opened. This gripping portion forming means may form the gripping portion by making the shape of the end portion uneven when the rewetting adhesive tape 1 is cut, but the ease of formation and the base of the rewetting adhesive tape 1 From the viewpoint of good breaking efficiency of the material, it is more preferable to form the grip portion by making a slit from the cut end portion. The slits may be formed at the same time as the cutting of the rewetting adhesive tape 1 or after the cutting.

Next, the rewetting adhesive tape 1 that has passed through the tape cutting means 6 is conveyed to the non-water wetted portion forming means 7. This transportation is carried out by the rotation of the feeding roller 4 until the rewetting adhesive tape 1 is cut, and thereafter, the end of the cut rewetting adhesive tape 1 is pinched and pulled out. The non-water-wetted portion forming means 7 includes a brush 8 that comes into contact with the rewetting adhesive tape 1 to adhere water, a water tank portion 9 that supplies water to the brush 8, and a rewetting adhesive tape 1 that comes into contact with the brush 8. And a lid portion 10 for guiding. More specifically, as shown in FIG. 2, the brush 8 has a center in the width direction of the rewetting adhesive tape 1 in order to form a non-water-wetting portion on the surface of the rewetting adhesive tape 1 to which the rewetting adhesive is applied. The tip of the bristles in the area that contacts the section is removed, and the tip of the bristles is stored inside the water tank 9 in which water is stored, and is held in a state where water is sucked up from there to the tip of the brush 8 by utilizing the capillary phenomenon. It In addition, when the water tank portion 9 is combined with the lid portion 10, a path for guiding the rewetting adhesive tape 1 is formed between these members along the bottom surface of the lid portion 10 to a position in contact with the brush 8. Then, when the rewetting adhesive tape 1 is conveyed to this path, water adheres to the rewetting adhesive application surface of the rewetting adhesive tape 1 in an area where the brush tip of the brush 8 comes into contact with the rewetting adhesive tape 1 to make it sticky. An adhesive surface having a brush 8 is formed.
A non-water-wetting portion, that is, a region having no tackiness is formed in a region where the hair tips do not contact.

In the present invention, the brush 8 is not limited to the above-mentioned form, but the rewetting adhesive tape 1
3 may be provided with a cover made of a hydrophobic material in a region in contact with the central portion in the width direction of the roller, and a roll made of a water-absorbing material may be used instead of the brush. The form shown in FIG. 4 provided in a portion other than the widthwise central portion of the wet adhesive tape 1 may be used. Also, the water tank 9
In order to easily give tackiness to the re-wetting adhesive in the water-wetted part, a heater may be provided to raise the temperature of the water to be attached, and the amount of water reduced by use is automatically replenished. A tank may be provided.

Further, the non-water wetted portion forming means in the present invention is provided with means for mechanically folding the rewetting adhesive tape, so that the non-water wetted portion can be formed by utilizing a generally known watering means. It is possible. Specifically, FIG.
As shown in (a) to (c), first, the rewetting adhesive tape 1 is bent at the center in the width direction so that the application surface of the rewetting adhesive is on the inside, and then, FIGS. As shown in, the surface arranged on the lower side is folded back from the side end portion with a constant length. The rewetting adhesive tape 1 folded in this way is spread in the lengthwise direction at the widthwise central portion of the rewetting adhesive tape 1 by adhering water to the rewetting adhesive application surface from below and then stretching it again. Existing non-water wetted parts can be formed.

In the rewetting adhesive tape sticking apparatus for packaging of the present invention, means 11 for forming a tear assisting mechanism at positions on the base material of the rewetting adhesive tape 1 which coincide with both sides of the non-wetting portion. Is preferably provided. The tear assisting mechanism forming means 11 may be arranged before the pay-out roll 4 or after the tape cutting means 6 as long as it is arranged so as not to hinder the running of the rewetting adhesive tape 1. The region sandwiched by the tear assist mechanism formed by the tear assist mechanism forming unit 11 coincides with the non-adhesive portion, so that the base material of the rewetting adhesive tape 1 is torn along this tear assist mechanism. The substrate can be destroyed more easily. Specific examples of the tearing assist mechanism include perforations and score lines. When the pull-out assist mechanism is a perforation, the tear assist mechanism forming means 11 forms perforations along both sides of the rewetting adhesive tape 1 in the lengthwise direction of the tape where the non-wetting portion is formed. A perforated slit blade is provided. The perforation slit blade is preferably in the form of a roll that is driven in synchronization with the feeding roll 4 in order to form perforations along with the conveyance of the rewetting adhesive tape 1. When the tear assist mechanism is a scoring line, the scoring blade that forms the scoring line along both sides of the rewetting adhesive tape 1 in the lengthwise direction of the tape in the region where the non-wetting portion is formed is The rewetting adhesive tape 1 is provided and is always pressed against the base material.

Further, in the present invention, it is preferable to have both the gripping portion forming means and the tearing assist mechanism forming means described above. According to these means, the rewetting adhesive tape 1 attached to the adherend is The substrate can be destroyed more easily.

Further, in the present invention, the tape guide member 1 is provided in the vicinity of the above-mentioned tape feeding roll 4 and touch roll 5 along the rewetting adhesive tape 1 conveying path.
It is preferable to provide 2. This tape guide member 12
According to this, when the roll-shaped rewetting adhesive tape 1 is replaced,
One end of the rewetting adhesive tape 1 can be easily sandwiched between the tape feeding roll 4 and the touch roll 5.

The rewetting adhesive tape used in the rewetting adhesive tape applicator for packaging of the present invention uses, as a base material, a material such as paper or synthetic paper that does not form foreign matter during repulping.
Further, it is preferable to use a water-soluble adhesive which is water-soluble and has adhesiveness when wet as a rewettable adhesive.
Specific examples of the rewetting adhesive include starch or modified starch,
Dextrin, animal glue, polyvinyl alcohol (PV
A) or modified PVA, a simple substance such as polyvinyl acetate, polyacrylic acid, polyacrylic amide, etc., a copolymer, or a mixture thereof.

If the rewetting adhesive tape made of such a material is used, the amount of foreign matter that must be removed during re-pulping for recycling is extremely small, and the rewetting adhesive tape sticking device for packaging of the present invention can be used for rewetting. A packaging material such as a corrugated cardboard to which the wet adhesive tape is attached can be easily recycled in a used state.

[0020]

As described above, according to the rewetting adhesive tape applicator for packaging of the present invention, the rewetting adhesive coated surface of the rewetting adhesive tape cut to an arbitrary length is centered in the width direction. Part, it is possible to form a non-wetting part extending in the lengthwise direction of the rewetting adhesive tape, and when using this rewetting adhesive tape for packaging of corrugated cardboard, etc. By sticking along, it is possible to prevent the contents from being taken out for tampering or mischief, and at the time of opening, break the base material by putting your finger on one end of this non-water wet part. The base material can be easily broken and opened without using a tool such as a knife. Further, according to the rewetting adhesive tape sticking device for packaging of the present invention, since a general rewetting adhesive tape can be used, the cost requirement can be satisfied.

[Brief description of drawings]

FIG. 1 is a view schematically showing an embodiment of a rewetting adhesive tape sticking device for packaging of the present invention.

FIG. 2 is a view showing members constituting an example of a non-water-wetting portion forming means in the rewetting adhesive tape sticking device for packaging of the present invention.

FIG. 3 is a diagram showing another example of a member constituting a non-water-wetting portion forming means in the rewetting adhesive tape sticking device for packaging of the present invention.

FIG. 4 is a view showing another example of a member constituting the non-water-wetting portion forming means in the rewetting adhesive tape sticking device for packaging of the present invention.

FIG. 5 is a diagram showing a manner of forming a non-water-wetting portion by folding the re-wetting adhesive tape in an example of the non-water-wetting portion forming means in the rewetting adhesive tape sticking device for packaging of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rewetting adhesive tape, 2 ... tape feeding means, 4 ... feeding roller, 5 ... touch roller, 6 ... tape cutting means, 7 ... non-wetting part forming means, 11 ... tearing assist mechanism forming means.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E094 AA03 CA33 DA02 FA30 HA13                 3F062 AB01 BA08 BC01 BF11 BG07                       FA03 FA16

Claims (4)

[Claims] 1. A means for forming a non-water-wetting portion extending in the length direction of the rewetting adhesive tape in the widthwise central portion of the rewetting adhesive coated surface of the rewetting adhesive tape for packaging. Characteristic rewetting adhesive tape sticking device for packaging. 2. The packaging according to claim 1, further comprising means for forming a grip portion having the same width as the non-water-wetting portion on at least one end of the rewetting adhesive tape. Rewetting adhesive tape application device. 3. The device according to claim 1, further comprising means for forming a tearing assisting mechanism at a position on the base material of the rewetting adhesive tape which corresponds to both sides of the non-water-wetting portion. Rewetting adhesive tape application device for packaging. 4. The rewetting adhesive tape sticking device for packaging according to claim 3, wherein the tearing assist mechanism is a perforation or a scoring line.