Tag and manufacturing method of tag
By transforming adhesive tape scraps into laminated sticky notes, the method addresses the issue of waste disposal and energy consumption in recycling, achieving sustainable reuse and efficient resource utilization.
Patent Information
- Application Number
- JP2024062343
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-10-21
AI Technical Summary
Adhesive tape scraps generated during manufacturing are typically discarded due to insufficient adhesive application, leading to energy-intensive recycling methods and potential environmental hazards from incineration, which contradicts the demand for sustainable waste reduction.
Manufacture sticky notes by laminating adhesive tape scraps with adhesive on one side and a release agent on the other, cutting them into desired shapes, and reusing them as reusable notes.
Reduces waste and energy consumption by repurposing adhesive tape scraps into functional sticky notes, promoting sustainability and efficient resource utilization.
Smart Images

Figure 2025159624000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to sticky notes made from scraps of adhesive tape that have traditionally been discarded, and to a method for making the same. [Background technology]
[0002] Patent Document 1 below describes a method for reusing the edges of adhesive tape, which have traditionally been incinerated. Specifically, the method describes a method in which the edges of the adhesive tape are finely pulverized and the fine powder is compressed or heated simultaneously with compression to produce a molded product. The molded product is said to be used as plywood for flooring, buffer material, or wall material, plywood for formwork, or as a gardening flowerpot. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-80838 Summary of the Invention [Problem to be solved by the invention]
[0004] Adhesive tape is often sold in the form of roll tape, in which the adhesive tape is wound around a core material. As shown in Figure 1, the roll tape is produced by unwinding the substrate from the original roll and winding it around a long core material, applying an adhesive to one side of the substrate and a release agent to the other side of the substrate while winding the substrate around the long core material. Next, as shown in Figure 2, the wide roll tape is cut together with the core material at predetermined intervals to produce roll tape.
[0005] Due to the manufacturing process, adhesive cannot be applied to both ends of the substrate, or even if it can be applied, the amount of adhesive applied is small. These areas where adhesive is not applied or where the amount of adhesive applied is small are called edges, stems, or scraps, and are discarded after being cut. Recently, achieving a sustainable society and reducing environmental impact have become social challenges, and there is a demand for waste reduction.
[0006] The above-mentioned Patent Document 1 describes a method for producing a molded product by finely pulverizing scraps generated as a by-product in the manufacturing process of adhesive tape and compressing the fine powder or by heating the powder while compressing. The method of Patent Document 1 uses a large amount of energy in the processes of pulverizing, compressing, or compressing and heating for molding. Furthermore, it becomes necessary to add new materials and additives to ensure quality, and in some cases, it may be necessary to use more virgin raw materials than recycled raw materials. Furthermore, it may be less environmentally hazardous to simply use the heat generated when scraps are incinerated as a heat source.
[0007] The present invention aims to provide sticky notes that utilize the characteristics of scrap material generated when manufacturing roll tape, and a method for manufacturing such sticky notes. [Means for solving the problem]
[0008] The above problem is solved by a method for manufacturing sticky notes from scrap adhesive tape, in which the scrap has an adhesive portion with adhesive applied to one side and an end portion with less adhesive applied than the adhesive portion, and on the other side adhesive tape with a release agent applied is wound around a core material, the method including the steps of pulling out the adhesive tape from the scrap and winding it, stacking it so that the one side overlaps the other side, and cutting the stacked adhesive tape in the width direction.
[0009] This sticky note has a shape in which one side of a piece of paper cut out from a scrap of adhesive tape is laminated onto the other side of another piece of paper cut out from a scrap of adhesive tape, and the one side has an adhesive portion with adhesive applied to one side and an end portion to which less adhesive is applied compared to the adhesive portion, and a release agent is applied to the other side, and the end portion to which less adhesive is applied compared to the adhesive portion is a sticky note derived from the end of the scrap of adhesive tape, thereby solving the above-mentioned problem.
[0010] One side of the adhesive tape has an adhesive portion and an end portion to which less adhesive is applied than the adhesive portion. The present invention was completed based on the discovery that the above-mentioned configuration of adhesive tape scraps is suitable for sticky notes. By utilizing the adhesive portion of the adhesive tape and the end portion to which less adhesive is applied than the adhesive portion as they are for sticky notes, the sticky notes can be easily turned over one by one, and waste scrap material can be reused as sticky notes. In this specification, a sticky note refers to a piece of paper on which notes can be written and which can be attached to any object. [Effects of the Invention]
[0011] According to the present invention, it is possible to provide sticky notes that utilize the characteristics of scrap material that is inevitably generated when manufacturing roll tape, and a method for manufacturing such sticky notes. [Brief explanation of the drawings]
[0012] [Figure 1] 1A to 1C are explanatory diagrams showing the process of manufacturing a wide roll tape. [Figure 2] FIG. 1 is an explanatory diagram showing a process for producing narrow width roll tapes by cutting a wide roll tape to a desired width. [Figure 3] 10 is an explanatory diagram showing a process of unwinding adhesive tape from an end of the adhesive tape and winding it around a cylindrical body. FIG. [Figure 4] 10A and 10B are explanatory views showing a process of cutting off an end of the adhesive tape wound around a cylindrical body. [Figure 5] FIG. 10 is a side view of the manufactured sticky note. [Figure 6]FIG. 10 is a perspective view of a manufactured sticky note. [Figure 7] FIG. 1 is a diagram showing an apparatus for unwinding adhesive tape from scrap material and winding it around a cylindrical body. DETAILED DESCRIPTION OF THE INVENTION
[0013] An example of a sticky note and a method for manufacturing the sticky note of the present invention will be described below. The example shown below is merely a limited example of the present invention, and the technical scope of the present invention is not limited to the illustrated embodiment.
[0014] First, we will explain the roll tape manufacturing process and the adhesive tape scraps 11 that are a by-product of this process. As shown in Figure 1, in the process of winding a substrate 13 around a long core material 12, an adhesive is applied to one side of the substrate 13 in an adhesive application section 31, and a release agent is applied to the other side of the substrate 13 in a release agent application section 32, while the substrate 13 is wound around the long core material 12, producing a wide roll tape 14. The substrate 13 is wound and unwound toward the core material 12. A known core material commonly used for roll tapes is used as the core material. The core material 12 described above is a hollow cardboard tube.
[0015] The adhesive application unit 31 and the release agent application unit 32 can utilize known means such as a comma coater, die coater, blade coater, bar coater, etc. Although not shown, after the adhesive and / or release agent is applied, the substrate may be dried by means such as blowing hot air onto it.
[0016] The wide roll tape 14 obtained as described above is cut together with the core material 12 to any width, such as 15 mm or 50 mm, to obtain a plurality of roll tapes 15, as shown in Figure 2. At this time, both ends of the wide roll tape 14 are by-produced as adhesive tape scraps 11. The roll tape 15 other than the scraps is sold as a finished product.
[0017] As shown in Figure 3 and other figures, the scrap material 11 has an adhesive portion 16 with adhesive applied to one side and an end portion 17 with a smaller amount of adhesive applied than the adhesive portion 16, and an adhesive tape 18 with a release agent applied to the other side, wound around a core material. In the scrap material 11 of this example, adhesive is not applied to both ends of the base material 13, but is applied to the center of the base material 13 other than both ends. Therefore, no adhesive is applied to the end portion 17. Depending on the method for applying the adhesive to the base material 13, some adhesive may adhere to the end portion 17, but this is acceptable as long as the amount of adhesive applied is smaller than that of the adhesive portion 16.
[0018] Next, the process of processing the scrap material 11 into sticky notes will be described. First, as shown in Fig. 3, the adhesive tape 18 is pulled out from the scrap material 11 and wound, and then stacked so that one side overlaps the other side. When pulling out the adhesive tape 18 from the scrap material 11 and winding it, it is preferable that the unwinding direction of the adhesive tape 18 and the extending direction of the adhesive portion 16 are parallel to each other. Next, as shown in Fig. 4, the stacked adhesive tape 18 is cut in the width direction. The width direction here refers to the direction that intersects with the unwinding direction of the adhesive tape 18.
[0019] As shown in Figure 4, adhesive tape 18 pulled out from scrap material 11 is wound around a cylindrical body 20 having a slit 19, and the laminated adhesive tape is cut at the position of the slit 19 in the cylindrical body 20, thereby enabling the processes of laminating adhesive tape 18 and cutting adhesive tape 18 to be carried out efficiently.
[0020] As shown in Figure 4, when the adhesive tape 18 is cut in the width direction, a rectangular sticky note 3 is obtained in which multiple sheets of adhesive tape 18 are stacked. The number of stacked sheets of adhesive tape 18 can be changed as appropriate. The intervals at which the adhesive tape 18 is cut can be changed as appropriate. By changing the intervals at which the adhesive tape 18 is cut, the ratio of the length to the width of the sticky note 3 can be changed. The shape of the sticky note 3 can be square, rectangular, or any other shape using a cutting die of any shape.
[0021] When winding the adhesive tape 18 from the scrap 11 onto a cylindrical body, for example, the device 4 shown in Fig. 7 may be used. The device 4 includes a support part 44 that supports the scrap 11 in a state where the tape can rotate in the payout direction of the adhesive tape 18, a plurality of direction-changing rollers 45, and a cylindrical body 20b.
[0022] The cylindrical body 20b includes a rotating body 42 connected to a shaft 41 protruding from a driving source such as a motor, and a winding section 43 connected to the rotating body 42. The winding section 43 includes a circular section 431 for fixing the rotating body 42 to the inside, a shaft section 432 extending radially outward from the circular section 431, and an arc-shaped section 433 provided at the tip of the shaft section. A slit 434 is provided between one arc-shaped section 433 and the other arc-shaped section 433. A circular reinforcing section 435 is provided between the arc-shaped section 433 and the circular section 431. The cylindrical body 20b is rotated by power from the driving source, and the adhesive tape 18 is wound around the outer surface of the arc-shaped section 433. The wound adhesive tape is cut at the position of the slit 434 to produce the sticky note 3. The rotation direction of the cylindrical body 20b may be either clockwise or counterclockwise. In the counterclockwise direction, the adhesive tape 18 is wound in the direction shown by the dashed line in FIG.
[0023] By the above method, as shown in Figure 5, sticky notes 3 are obtained, which have a shape in which one side of a piece of paper cut out from adhesive tape remnant 11 is laminated onto the other side of another piece of paper cut out from adhesive tape remnant 11. The one side has an adhesive portion 16 to which adhesive is applied and an end portion 17 to which less adhesive is applied than adhesive portion 16. A release agent is applied to the other side. Because the one side has adhesive portion 16 and end portion 17 to which less adhesive is applied than adhesive portion 16, it is easy to peel off the sticky notes one by one by peeling back end portion 17 to which less adhesive is applied, as shown in Figure 6.
[0024] In the sticky note 3 manufactured as described above, there are no particular limitations on the area ratio between the adhesive portion 16 and the edge portion 17 to which less adhesive is applied compared to the adhesive portion 16. For example, the area of the edge portion 17 to which less adhesive is applied can be 1 / 10 to 10 times the area of the adhesive portion 16.
[0025] By using a small, simple-structured device, it is possible to reuse leftover adhesive tape, which would previously have been discarded, as sticky notes, making effective use of limited resources.
[0026] Generally, when recycling waste as a starting material, it is often inferior to the use of virgin materials in terms of physical properties and cost, and is often positioned as merely one proposal for waste utilization. As described above, when processing adhesive tape scraps into sticky notes, processes such as crushing, heating, and pressurization are not performed, so the processing does not require much energy and can contribute to the realization of a sustainable society.
[0027] In the above method, the leftover adhesive tape is reused as sticky notes while preserving its original shape as much as possible, which reduces the amount of waste, and as a result, the energy used for recycling is reduced, thereby reducing the environmental impact. [Explanation of symbols]
[0028] 18 adhesive tape 11 Scraps 16 Adhesive part 17 End 20 Cylinder 20b Cylinder 19 Slit 434 Slit 3. Sticky notes
Claims
1. A method for manufacturing sticky notes from adhesive tape scraps, The scrap material has an adhesive portion on one side to which an adhesive is applied and an end portion to which a smaller amount of adhesive is applied than the adhesive portion, and an adhesive tape on the other side to which a release agent is applied is wound around a core material, A method for manufacturing sticky notes, comprising the steps of pulling out the adhesive tape from the scrap material, winding it, stacking it so that one side overlaps the other side, and cutting the stacked adhesive tape widthwise.
2. The method for manufacturing sticky notes according to claim 1, wherein the adhesive tape pulled out from the scrap material is wound around a slitted cylindrical body, and the laminated adhesive tape is cut at the position of the slit in the cylindrical body.
3. A sticky note having a shape in which one side of a piece of paper cut out from a remnant of adhesive tape is laminated on the other side of another piece of paper cut out from a remnant of adhesive tape, the one surface has an adhesive portion to which an adhesive is applied and an end portion to which an amount of adhesive applied is smaller than that of the adhesive portion, a release agent is applied to the other surface; The end portion to which the amount of adhesive applied is less than that of the adhesive portion is a sticky note derived from the end portion of a scrap of adhesive tape.
Citation Information
Patent Citations
Molded object reutilizing selvedge part of self-adhesive tape
JP1995080838A