JP3209037U - Simple sealing and opening device that enables reuse of plastic bags for delivery and logistics - Google Patents

Abstract

A simple sealing and unsealing device is provided that enables a plastic bag for delivery and distribution to be reused. A separation tear line 13 is formed along the long side of an elongated release substrate 1, and a double-sided adhesive layer is adhered to one side surface of the release substrate. By adhering the double-sided adhesive layer of the release substrate to the inner surface of the sealing part of the plastic bag 4, the sealing part is adhered to close the plastic bag. In addition, the reinforcing tape 3 is adhered to the outer surface of the sealing portion of the plastic bag. The plastic bag can be opened by tearing off the plucking and tearing portion 12. If a plurality of release substrates are adhered to the inner surface of the sealing portion of the plastic bag and a single or a plurality of reinforcing tapes are adhered to the outer surface of the sealing portion, the effect of reusing the plastic bag multiple times can be obtained. [Selection] Figure 4

Description

  The present invention relates to a sealing / opening device, and more particularly, to a simple sealing / opening device capable of repeatedly reusing a packaging plastic bag used in a delivery business a plurality of times.

  When a consumer receives a delivery product such as a parcel and wants to open it, it is necessary to tear open the sealing portion or open the sealing portion with a cutter. However, when opening the sealing portion of the plastic bag by tearing or cutting it, the plastic bag is damaged to some extent, so that the plastic bag cannot be recovered and used again. In particular, the inconvenience arises when the consumer tries to return the product within the grace period in which the product can be returned. Thus, it is a waste of resources that a damaged plastic bag becomes unusable and is discarded immediately, and in addition, a plastic bag made of synthetic resin is not decomposed in the natural environment and is contrary to environmental protection.

  The present invention is combined with a plastic bag for packaging so that the plastic bag can be quickly closed and opened as well as being re-sealable and re-opened again. An object is to provide a sealing and opening device.

  In the present invention, a separation tear line is formed along the long side of the elongated release substrate, and a double-sided adhesive layer is adhered to one side surface of the release substrate. By adhering the double-sided adhesive layer of the release substrate to the inner surface of the sealing part of the plastic bag, the sealing part can be adhered and the plastic bag can be closed. In addition, a reinforcing tape is adhered to the outer surface of the sealing portion of the plastic bag. When the plastic bag is opened, it can be opened by tearing off the picking and tearing portion. When multiple release substrates are adhered to the inner side of the sealing part of the plastic bag and single or multiple reinforcing tapes are attached to the outer side of the sealing part of the plastic bag, the effect of repeatedly reusing the plastic bag multiple times Is obtained.

It is the top view which showed the structure of the mold release base material of this invention. It is a perspective view which shows the Example which made the double-sided adhesive layer stick to the release base material of FIG. 1 in this invention. It is the schematic which shows the Example which made the release base material of this invention adhere to the inner surface of the sealing part of a plastic bag. It is a perspective view which shows the Example which adhered the reinforcing tape of this invention to the sealing part outer side surface of the plastic bag. It is the schematic which shows the Example after the reinforcement tape adhere | attached on the sealing part outer side surface of the plastic bag. It is the schematic which shows the Example at the time of peeling first the base of a mold release base material at the time of use of this invention. It is the schematic which shows the state after peeling off the base of FIG. It is the schematic which shows a mode that the sealing part of FIG. 7 was rotated 180 degree | times with respect to the plastic bag, and the bag mouth of the plastic bag was closed. It is the schematic which shows a mode that the picking and tearing part is opened when opening the sealed plastic bag. It is the schematic which shows the state after tearing apart the picking and tearing part of FIG. It is the schematic which shows a mode after rotating the sealing part of FIG. 10 180 degree | times with respect to the plastic bag, and opening. It is the schematic which shows the Example by which two mold release base materials were adhere | attached on the inner surface of the sealing part of the plastic bag in this invention. It is the schematic which shows the Example by which the reinforcement tape was adhere | attached on the sealing part outer side surface of the plastic bag in this invention. It is the schematic which shows the Example by which the release base material of this invention was directly adhere | attached on the conventional plastic bag. It is the schematic which shows a mode that a release paper is first peeled when using the plastic bag shown in FIG. It is the schematic which shows a mode that the reinforcement tape was adhere | attached on the outer surface of the plastic bag of FIG.

Example 1
Please refer to FIG. An embodiment of a simple sealing / unsealing device provided by the present invention, which makes it possible to reuse a plastic bag for delivery and distribution, comprises a release substrate 1 and a double-sided adhesive layer 2. Of these, the release substrate 1 is made of an appropriate material that is difficult to adhere to the adhesive, and is stretched to form a continuous long and thin shape. It becomes easy to do. The release base material 1 is formed with a separation tear line 13 along the long side, and the separation tear line 13 divides the release base material 1 into two areas of a base 11 and a pinch tear part 12. Further, the base 11 and the picking and tearing portion 12 are split and separated by the separation tear line 13. Among these, a plurality of convex portions 111 protruding in the width direction of the base portion 11 are continuously formed on the side in the length direction of the base portion 11. The convex portions 111 can have a waveform or other appropriate various shapes, and these convex portions 111 can be distributed at equal intervals. The width of the base portion 11 is larger than the width of the plucking and tearing portion 12.

  Please refer to FIG. A first adhesive portion 21 and a second adhesive portion 22 each having adhesiveness are provided on opposite side surfaces of the double-sided adhesive layer 2 described above. The 1st adhesion part 21 is adhere | attached on one side surface of the mold release base material 1, and the 2nd adhesion part 22 is used in order to adhere | attach on the inner surface of the sealing part 40 of the plastic bag 4 (refer FIG. 3). In the embodiment of the present invention, the first adhesive portion 21 of the double-sided adhesive layer 2 covers most of the base portion 11 and the entire tear-off portion 12, and at the same time, the first adhesive portion 21 of the double-sided adhesive layer 2 is on the convex portion 111. Does not cover.

(Example 2)
Please refer to FIG. The general plastic bag 4 shown together has a bag body, and a bag mouth 41 is formed on one side of the bag body. A portion extended from one side of the bag mouth 41 forms a sealing portion 40. The aforementioned release substrate 1 is adhered to the inner side surface (the surface facing the bag mouth) of the sealing portion 40. Since the plastic bag 4 is usually made of a very thin synthetic resin, it is often difficult to open when the sealing portion 40 is torn. Therefore, the present invention is further provided with a reinforcing tape 3. A sticky viscous portion 31 is provided on one side surface of the reinforcing tape 3, and the width of the reinforcing tape 3 is larger than the width of the plucking and tearing portion 12 of the release substrate 1 and the viscosity of the reinforcing tape 3. The portion 31 is adhered to a position facing the plucking and tearing portion 12 on the outer surface of the sealing portion 40 (see FIGS. 4 and 5), and the width should be larger than the width of the plucking and tearing portion 12. In addition, on two opposite sides of the sealing portion 40 of the plastic bag 4, a separation slit 14 having a length is provided in parallel with both sides of the plucking and tearing portion 12.

  When the plastic bag 4 is closed, first, the base 11 of the release substrate 1 is peeled to expose the first adhesive portion 21 (see FIG. 6). After the base 11 is completely peeled off (see FIG. 7), the article is put into the plastic bag 4 from the bag mouth 41, and then the sealing portion 40 is rotated 180 degrees with respect to the plastic bag 4 to cover the bag mouth 41. And stick. Further, the sealing is completed when the first adhesive portion 21 is adhered to the outer surface of the plastic bag 4 (see FIG. 8). Since the convex part 111 mentioned above is not sticking to the double-sided adhesive layer 2, the user can easily peel off the base part 11 of the release substrate 1 from the convex part 111.

  When opening the plastic bag 4, the user picks up the pinch-opening portion 12 between the two slits 14 from either one end of the plastic bag 4 (see FIG. 9) and tears off the pinch. The sealing part 40 is broken by tearing the part 12 along the length direction of the release substrate 1. Furthermore, the tearing groove 4A is formed by tearing until the plucking and tearing part 12 as a whole is completely separated from the connected sealing part 40 (see FIG. 10). Thereby, the sealing part 40 can be opened and the plastic bag 4 can be opened (refer FIG. 11).

(Example 3)
Reference is made to FIG. 12 for the case where the plastic bag 4 is to be used repeatedly a plurality of times. A plurality of release substrates 1 are adhered to the inner side surface of the sealing portion 40 of the plastic bag 4 by the above-described method, and a single or a plurality of reinforcing tapes 3 are attached to the outer side surface of the plastic bag 4 sealing portion 40. (FIGS. 12 and 13 show a state where the two release substrates 1 and the reinforcing tape 3 are adhered. The actual quantity is determined according to the demand of the manufacturer).

  When the plastic bag 4 is to be sealed, first, the base 11 of the release substrate 1 closest to the free end of the sealing portion 40 is peeled off to expose the first adhesive portion 21. Furthermore, after the base portion 11 is completely peeled off, the sealing portion 40 is rotated 180 degrees with respect to the plastic bag 4 to cover the bag mouth 41, and the first adhesive portion 21 is adhered to the outer surface of the plastic bag 4. Closing is complete.

  When trying to open the plastic bag 4, the user picks the plucking and tearing portion 12 between the two slits 14 from one side end of the release substrate 1 bonded to the plastic bag 4. At the same time, the sealing portion 40 is broken by tearing the plucking and tearing portion 12 along the length direction of the release substrate 1. Furthermore, if the plucking and tearing part 12 as a whole is torn apart from the connected sealing part 40 completely, the sealing part 40 can be opened and the plastic bag 4 sealing part 40 can be opened.

  When trying to seal again using the plastic bag, the base is peeled off using a separate unused release substrate 1 in the same manner as described above, and then the plastic bag 4 is adhered and sealed. I can do it. Further, since the method of opening the plastic bag again is the same as the opening method described above, it will not be described again here.

  The larger the number of the release substrate 1 and the reinforcing tape 3 provided in the sealing portion of the plastic bag 4, the greater the number of times that it can be used repeatedly.

Example 4
Reference is made to FIGS. The release substrate 1 of the present invention can be used for conventional packaging plastic bags 4 that are generally commercially available. The conventional packaging plastic bag 4 has a bag body, and a bag mouth 41 is formed on one side of the bag body. A portion extended from one side of the bag mouth 41 forms a sealing portion. An adhesive is applied to the inner side surface of the sealing portion to form a pressure-sensitive adhesive portion 43, and a release paper 42 is stuck on the pressure-sensitive adhesive portion 43. The mold release substrate 1 of the present invention can be directly adhered to the inner surface of the sealing part between the bag mouth 41 and the adhesive part 43 of the commercially available conventional plastic bag 4, and the reinforcing tape 3 includes the sealing part. It adheres to the position corresponding to the release substrate 1 on the outer surface of the.

  When the plastic bag 4 is to be sealed, first, the release paper 42 is peeled off from the base 11 of the release substrate 1 closest to the free end of the sealing part 40 to expose the first adhesive part 2 (see FIG. 15). . Further, the sealing portion is completed by rotating the sealing portion 180 degrees with respect to the plastic bag 4 to cover the bag mouth 41 and adhering the adhesive portion 43 to the outer surface of the plastic bag 4.

  When trying to open the plastic bag 4, the user picks the plucking and tearing portion 12 between the two slits 14 from one side end of the release substrate 1 bonded to the plastic bag 4. At the same time, the sealing portion is broken by tearing the plucking and tearing portion 12 along the length direction of the release substrate 1. Furthermore, if the pluck tearing part 12 whole is torn apart until it completely leaves | separates from the connected sealing part, the sealing part can be opened and the plastic bag 4 can be opened.

DESCRIPTION OF SYMBOLS 1 Release base material 11 Base part 111 Convex part 12 Pinch tearing part 13 Separation tear line 14 Carving slit 2 Double-sided adhesive layer 21 First adhesion part 22 Second adhesion part 3 Reinforcement tape 31 Viscous part 4 Poly bag 4A Tear groove 40 Sealing Portion 41 Bag Portion 42 Release Paper 43 Adhesive Portion

Claims (6)

A simple sealing / unsealing device comprising a release base material, a double-sided adhesive layer, and a reinforcing tape, which makes it possible to reuse a plastic bag for delivery and logistics,
The release substrate has a continuous and elongated shape, and a separation tear line is formed along the long side of the release substrate, and the release substrate is formed by the separation tear line. Is divided into two areas, the base and the tear-off part,
The double-sided adhesive layer is provided with a first adhesive part and a second adhesive part each having adhesiveness on opposite side surfaces,
The first adhesive portion is adhered to one side surface of the release substrate,
The second adhesive portion is used for being adhered to the inner surface of the sealing portion of the plastic bag,
When closing the plastic bag, it is necessary to first peel off the base of the release substrate,
The reinforcing tape is adhered to a position corresponding to the plucking and tearing portion on the outer side surface of the sealing portion of the plastic bag, and the plastic bag for delivery and logistics can be easily reused. Sealing and opening device. 2. The simple and reusable plastic bag for delivery and distribution according to claim 1, wherein a single or a plurality of reinforcing tapes are adhered to the outside of the sealing portion of the plastic bag. Closing and opening device. Furthermore, the width | variety of the said reinforcement tape is all larger than the width | variety of the said pinch tear part, The simple sealing | blocking which makes the plastic bag for delivery and distribution of Claim 1 reusable, Opening device. The easy-sealing for enabling reuse of the plastic bag for delivery and distribution according to claim 1, wherein a plurality of release substrates are adhered inside the sealing portion of the plastic bag. -Opening device. The plastic bag for delivery and distribution according to claim 1, wherein the first adhesive part of the double-sided adhesive layer covers a part of the base part and all of the plucking and tearing part. Simple sealing and opening device. 5. The delivery according to claim 4, further comprising a slit having a length parallel to both sides of the tear-off portion on two opposite sides of the sealing portion of the plastic bag. And a simple sealing / unsealing device that makes it possible to reuse plastic bags for logistics.

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