JPH07101438A - Cardboard case for explosives - Google Patents

Abstract

PURPOSE:To provide an improved cardboard case for explosives which can be opened with almost no damage. CONSTITUTION:When a cardboard case containing gelatinized dynamite is sealed up with a sealing adhesive tape 3 made of polypropylene, a vinyl chloride tape 7 without applied adhesive is mechanically stuck at the end of the sealing adhesive tape 3 to seal the cardboard case. After completion of seaing, the separated tape 7 projected from the sealing adhesive tape 3 is taken with fingers. The sealing adhesive tape 3 can be easily peeled off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cardboard box for storing explosive products, and more particularly to a cardboard box improved to ensure work safety during consumption and improve work efficiency. .

[0002]

2. Description of the Related Art Conventionally, cardboard boxes have been used in various industrial fields as packaging materials for transportation. In addition, when the product is placed in this cardboard box and then the cardboard box is sealed, various adhesive properties such as paper, paper with thread, cloth, cloth with thread, plastic film, cellophane, etc. Tape material is used.

FIG. 8 is a view of a cardboard box sealed with a conventional adhesive tape 3 for sealing. The adhesive tape 3 for sealing the cardboard box is entirely adhered from the upper flap-matching portion of the cardboard box to the side surface of the carton box. Therefore, when opening a cardboard box, in many cases, put a knife or the like between the left and right flaps to break the adhesive tape for sealing and pry it, or put your hand in the gap of the flap to break the flap.
It is usually opened by cutting a cardboard box body with a knife or by other methods.

[0004]

However, the cardboard box containing the explosive product has the following problems.

When selling and consuming explosives, a part of the product must be taken out, and the rest must be stored again in the cardboard box and returned to the explosive store. Therefore, when opening the cardboard box, the adhesive tape for sealing must be carefully peeled off and handled so as not to damage the cardboard box significantly. However, in the current cardboard box containing explosives, the adhesive tape for sealing is entirely attached from the upper lid flap part to the side of the chest side, so it is very difficult to remove only the tape part well. Is the reality.

Therefore, generally, a knife, a sickle, a metal fitting,
Put a tear on the tape attached to the upper lid flap with a familiar tool such as a car key, put your hands in the gap of the glued flap and pry open the cardboard box to open the inside product The reality is to take it out. In this case, there is a problem in that if a knife is used to open the box, injury may occur during the work, which is not preferable. Also, during the work, the blades, metal items, etc. may be left behind in the cardboard box containing the explosives, and may be stored again in the explosive store while foreign matter is mixed. This is legally very unfavorable.

In general products, it is common to display the products by cutting the side surface of the cardboard box with a knife or the like. Explosives products are generally polyethylene sachets in cardboard,
In many cases, it is stored in small pieces in a paper box or the like, and if the above measures are taken, the polyethylene small bag or the paper bag may be broken. In this case, the product inside may absorb moisture and the product quality may deteriorate. In addition, it is not preferable in terms of crime prevention that the cardboard box is torn and stored in a state without a lid in terms of crime prevention, and since the storage often takes a long time, it tends to be a quality problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved cardboard box capable of opening a cardboard box containing explosives with almost no damage.

[0009]

In order to achieve the above object, in the present invention, a packaging finish is made with an adhesive tape for packaging which is devised so that a cardboard box containing explosives can be easily opened. Providing a cardboard box. That is, the present invention is: A cardboard box for storing explosives, which is characterized by being sealed with a sealing tape in which a peeling tape is attached to an end of an adhesive tape for sealing. 2. A cardboard box for storing explosive products, which is characterized in that it is sealed with a sealing tape obtained by folding a part of the end of an adhesive tape for sealing. 3. A cardboard box containing explosive products, characterized by being sealed with a sealing tape in which a pressure-sensitive adhesive is not applied to a part of the side edge of the sealing adhesive tape. Cardboard box. It is about. As the adhesive tape for sealing used in the present invention, any of commonly used paper tapes, thread-containing paper tapes, plastic tapes, cellophane tapes and the like can be used. However, in consideration of the tape strength, the durability of the tape and the like, it is preferable to use the plastic tape.

[0010]

According to the present invention, by taking the above-mentioned various means, a portion which is not adhered to the cardboard box is generated at the end portion or the side end portion of the box-sealing adhesive tape. This unbonded part is easy to grab with your fingers, and if you grab this part and peel off the adhesive tape for packaging, you can now remove the entire tape without damaging the cardboard.

The operation of the present invention will be described below with reference to the drawings. 1 to 4 are explanatory views of a cardboard box to which various peeling tapes are attached. FIG. 1 shows a case where a peeling tape 7 having the same width as the sealing adhesive tape is attached, and FIG. 2 shows a case where a peeling tape 8 narrower than the sealing adhesive tape width is attached. In either case, the peeling tape portion protruding from the end portion of the box-sealing adhesive tape can be grasped with a finger to easily peel off the box-sealing adhesive tape.

FIG. 3 shows a case where a peeling tape 9 having the same width as the sealing adhesive tape is attached so as not to protrude from the end of the sealing adhesive tape, and FIG. 4 is shown in FIG. This is the case where the peeling tape 10 having a width narrower than the width is attached. In either case, a part of the adhesive tape for sealing that is not bonded to the cardboard box is formed. The entire tape can be easily peeled off by grasping this part with a finger and inserting the finger into the non-bonded part to grasp the adhesive tape for sealing.

Materials for the peeling tape used in the above method include paper tape, plastic tape, cellophane tape, non-woven tape, cloth tape, peelable adhesive tape,
Any of these can be used. Although the strength of the material is not specified, any material that can be easily torn off is not preferable.

Regarding the width of the peeling tape used in the above method, the peeling tape can be easily grasped by fingers when peeling off the sealing adhesive tape, and the width is 3 mm or more, although not specified. It may be wider than the width of the adhesive tape for sealing. However, considering the ease of gripping the release tape, it is preferably 5 mm or more and less than the width of the adhesive tape for sealing.

Further, the peeling tape may be stuck by any of a manual sticking method and a mechanical sticking method. It may be attached at the time of sealing the cardboard box with the adhesive tape for sealing, or at the time of assembling and manufacturing the empty cardboard box.

FIGS. 5 to 6 are explanatory views of a cardboard box in which the end portion of the adhesive tape for sealing is sealed with a non-adhesive tape, and FIG. 5 shows the end portions of the adhesive tape for sealing in parallel. FIG. 6 shows a case in which the adhesiveness to the cardboard box is lost by folding it to 11, and FIG. 6 shows a case where the terminal portion of the adhesive tape for sealing is bent into a triangular fold 12 to partially lose the adhesiveness to the cardboard box. Is. In any case, the folding width of the adhesive tape for sealing is not particularly specified, but it is preferably 3 mm or more in order to make it easy to grasp with fingers.
If it is too long, it may get caught and break, so it is preferably 15 mm or less.

Next, FIG. 7 is an explanatory view of a cardboard box sealed with a sealing adhesive tape 13 in which a pressure-sensitive adhesive is not applied to a part of a side end portion of the sealing adhesive tape. When opening the cardboard box, the entire tape can be easily peeled off by grasping the portion of the adhesive tape not coated with the adhesive with a finger.

In this case, the width of the tape-side end of the box-sealing adhesive tape on which the adhesive is not applied is not particularly specified, but considering the ease of grasping with fingers, turning over during transportation, tearing, etc. It is preferably 3 mm or more and 10 mm or less.

[0019]

EXAMPLES The present invention will be described in more detail below with reference to examples and comparative examples.

Example 1 As shown in FIG. 1, using an automatic sealing machine, a tape width of 50 m
m, with a polypropylene adhesive tape 3 with a tensile strength of 12.5 kgf / 25 mm, for sealing a cardboard box containing colloidal dynamite, the end of the adhesive tape for sealing has a width of 20 mm and a length of 40 mm. The PVC tape 7 not coated with the adhesive was mechanically attached by 20 mm, and the cardboard box was sealed. After the packaging was completed, the peeling tape protruding from the packaging adhesive tape was grasped with fingers and the packaging adhesive tape was peeled off, and the packaging adhesive tape could be easily peeled off.
Also, since the tape on the case was removed, it was easy to open the cardboard box, and the flap was not deformed or damaged.

Comparative Example 1 Using an automatic sealing machine, tape width 50 mm, tensile strength 12.5
A cardboard box containing colloidal dynamite was sealed with a kgf / 25 mm polypropylene adhesive tape for sealing. After the box was closed, I tried to peel the end of the box-sealing adhesive tape with my claws, but I couldn't peel it because the adhesive strength was strong. Next, I put my hands on the flap and the lid flap and tried to tear the adhesive tape for sealing, but the flap partially broke and the tape did not tear. Inevitably, I cut the tape at the center of the mating part of the top lid with a knife, put my hand in the gap of the flap, and opened the cardboard box. At this time, the flap was complicatedly deformed and damaged because the sealing tape was adhered to the case of the cardboard box. It is not preferable to store the rest of the colloidal dynamite in such a cardboard box in an explosive box while storing it.

Example 2 As shown in FIG. 2, using an automatic sealing machine, a tape width of 50 m
When sealing a corrugated cardboard box containing water-containing explosives with threaded gum tape with m and tensile strength of 7.5 kgf / 25 mm, the end of the adhesive tape for sealing has no width of 50 mm or 20 mm of adhesive applied. 15 mm of polyethylene tape 8
I mechanically stuck it and sealed the cardboard box.
After the packaging was completed, the peeling tape protruding from the packaging adhesive tape was grabbed with fingers, and the packaging adhesive tape could be peeled off easily. Also, the upper lid flap of the cardboard box could be easily opened, and the flap was neither deformed nor damaged.

Example 3 As shown in FIG. 3, using an automatic sealing machine, a tape width of 50 m
m, a tensile strength of 12.5 kgf / 25 mm made of polypropylene adhesive tape for enclosing a cardboard box containing black powder, the width of 50 mm, length of 40 mm, easy-peelable, single-sided adhesive tape 9 was attached to the container of the cardboard box, and the easy-peelable one-sided adhesive tape was attached to the position such that the end of the adhesive tape for sealing was overlapped by 20 mm. When a box-sealing adhesive tape was applied to this, a cardboard box was obtained in which the easily peelable one-sided adhesive tape protruded by 20 mm at the end of the box-sealing adhesive tape.

When opening the cardboard box, peel off the easily peelable one-sided adhesive tape, pinch it with your fingers to peel off the adhesive tape for sealing, and you can easily open the cardboard box. It was In addition, the cardboard box upper lid flap was not deformed or damaged.

Example 4 As shown in FIG. 4, using an automatic sealing machine, a tape width of 50 m
m, Tensile strength 6.5kgf / 25mm Kraft paper adhesive tape for enclosing a cardboard box containing colloidal dynamite. First of all, the width is 15mm and the length is 20mm. The adhesive paper tape 10 is adhered to the container part of the cardboard box, and the easy-peelable one-sided adhesive paper tape is attached at the position where the end of the adhesive tape for packaging matches the lower part of the easily-peelable one-sided adhesive tape. When the adhesive tape for sealing was applied in this state, a cardboard box was formed in which the end of the adhesive tape for sealing and the end of the easily peelable one-sided adhesive tape were overlapped.

In opening this cardboard box, first peel off the easily peelable one-sided adhesive paper tape part, and then put your finger in and grab the adhesive tape for sealing to pull the adhesive tape for sealing easily. I was able to peel it off. In this example, since there is no non-adhesive portion of the tape even when the cardboard box is transferred to the explosive box, the tape is not turned up and the flap is not greatly damaged even when the cardboard box is opened, which is convenient.

Example 5 As shown in FIG. 5, using an automatic sealing machine, a tape width of 50 m
At the time of sealing the cardboard box containing Ampho explosives with polypropylene adhesive tape with a tensile strength of 12.5 kgf / 25 mm, only the length 11 of 30 mm was applied to the end of the adhesive tape for sealing. Apply soapy water mechanically. Then, the automatic boxing machine is operated to seal the cardboard box.
After the packaging was completed, the adhesive tape for sealing the part coated with soapy water could be easily peeled off with the claws, so this part was folded in half and adhered to each other.

This bent and adhered portion has no adhesiveness to the container of the cardboard box, and this portion can be grasped with a finger at any time. Moreover, the non-adhesive portion was easily removed by grasping the non-adhesive portion with a finger and peeling off the adhesive tape for sealing, and the cardboard box was hardly damaged.

Example 6 As shown in FIG. 6, using an automatic sealing machine, a tape width of 50 m
When sealing a corrugated cardboard box containing a water-containing explosive with a polypropylene sealing adhesive tape with a tensile strength of 12.5 kgf / 25 mm, first place 20 at the end of the sealing adhesive tape.
Apply talc with a length of 12 mm. Then, the box-closing machine is operated to seal the cardboard box. After the box is closed,
Peel off the end of the adhesive tape for sealing, fold only the corners of this tape into a triangle, and attach them to each other.
Only the bent part has a terminal part that is not bonded to the cardboard box at all.

The non-adhesive triangular end portion can be easily peeled off by grasping the adhesive tape for sealing with a finger, and the cardboard box can be opened without causing significant deformation or damage to the cardboard box flap. I was able to do it.

Example 7 As shown in FIG. 7, a tape width was 60 using an automatic boxing machine.
mm, of which 13 mm, 8 mm of the side end portion, was sealed with a box-shaped adhesive tape in which no adhesive was applied to the cardboard box containing the colloidal dynamite. The tensile strength of the tape is 12.5kgf / 25mm. After the end of the sealing, the side end 13 of the sealing adhesive tape, which was not coated with the adhesive, was grasped with a finger and the sealing adhesive tape was peeled off easily. Also, the cardboard box was not deformed or damaged.

[0032]

INDUSTRIAL APPLICABILITY According to the present invention, when a cardboard box containing explosives is sealed with an adhesive tape for sealing, a peeling tape is attached to the end of the adhesive tape for sealing, or the adhesive tape for sealing is used. The cardboard box obtained by bending the end part or by sealing the cardboard box by making the side edge part of the adhesive tape for sealing partly non-adhesive is suitable for consumption and storage of explosives. It turned out to be very useful. The cardboard box for storing explosives was stipulated by the fire taking method so that the upper and lower flaps of the cardboard were glued in order to secure its strength, and opening the box was very troublesome. Needless to say, it is difficult to open the box even if a small amount of the sticking tape remains, but the method of the present invention makes it possible to remove the box tape from the cardboard box with a single touch, greatly simplifying the box opening work. Not only became
The cardboard box is no longer damaged or deformed. This also made it very convenient to put the remaining explosives back into the cardboard box and store them in the explosive store. The present invention has solved the problems that a cardboard box, which has been generated at the consumer site and during sales activities, is difficult to open, is damaged, and is difficult to use for re-storage.

[Brief description of drawings]

FIG. 1 is an explanatory view of a cardboard box for storing explosives according to a first embodiment of the present invention.

FIG. 2 is an explanatory view of a cardboard box for storing explosives according to a second embodiment of the present invention.

FIG. 3 is an explanatory view of a cardboard box for storing explosives according to a third embodiment of the present invention.

FIG. 4 is an explanatory view of a cardboard box for storing explosives according to a fourth embodiment of the present invention.

FIG. 5 is an explanatory view of a cardboard box for storing explosives according to a fifth embodiment of the present invention.

FIG. 6 is an explanatory view of a cardboard box for storing explosives according to a sixth embodiment of the present invention.

FIG. 7 is an explanatory view of a cardboard box for storing explosives according to a seventh embodiment of the present invention.

FIG. 8 is an explanatory view of a conventional cardboard box for storing explosives.

[Explanation of reference symbols] 1: Side of cardboard 2: Adhesive tape for sealing 3. Top lid flap joint 4: Top lid flap 5: Adhesive tape for lower sealing 6. Cardboard box surface 7: Part to which peeling tape is attached 8: Part with peeling tape attached 9: Part with peeling tape 10: Part with peeling tape 11: Part with folded end of adhesive tape for packaging (parallel folding) 12: For packaging Part where the end of the adhesive tape is folded (triangular fold) 13: Part where the adhesive is not applied with the sealing adhesive tape

Claims (3)

[Claims] 1. A cardboard box for storing explosive products, characterized in that it is sealed with a sealing tape having a peeling tape attached to the end of an adhesive tape for sealing. Cardboard box. 2. A cardboard box for storing explosives products, characterized in that it is sealed with a sealing tape obtained by folding a part of an end of an adhesive tape for sealing. Cardboard box. 3. A corrugated cardboard box containing explosive products, characterized in that it is sealed with a sealing tape in which a pressure-sensitive adhesive is not applied to a part of a side end of the sealing tape. Cardboard box for storing explosives.