Repair tape removal method and removal device

Abstract

To propose a removal method that does not apply a large load to an object to be repaired so that adhesive is unlikely to remain on the surface of the object to be repaired and the object to be repaired is not deteriorated in a separation operation of peeling off a repair tape from the object to be repaired. [Solution] The method of separating repair tape attached to an object to be repaired of the present invention is characterized by using a heating element having a heating surface, placing the back surface of the object to be repaired on the heating surface with the repair tape facing up, positioning at least the separation portion where the repair tape will be peeled off from the object to be repaired on the heating surface, heating from the side of the object to be repaired using the heating surface, and moving the separation portion while softening the adhesive on the side of the repair tape on the object to be repaired.

Description

[Technical Field]

[0001] The present invention provides Textiles and paper media This invention relates to a method and device for removing repair tape used in repairing such items. [Background technology]

[0002] Thin textiles and paper media such as books is a medium that has contributed to the recording and transmission of information in Japan, but as it has been used and stored for many years, Tearing of fabrics and paper There are some that have been repaired using repair tape.

[0003] However, the repair tape used temporarily has discoloration and deterioration, and Paper media such as textiles and books This will affect the object to be repaired, Repaired medium If the item is a valuable document or has economic value and needs to be maintained in its condition for a long time to come, the repair tape used in the past should be removed and the item should be repaired using other methods.

[0004] The adhesive used in repair tape can be softened by heating, so repair tape is generally removed by pulling the base material of the repair tape while blowing hot air from a hair dryer or similar device.However, this method heats the repair tape from the base material side.

[0005] When repair tape is removed from valuable paper documents using this conventional method, the amount of heat applied to the base of the repair tape increases, causing the adhesive layer to separate at the base, resulting in the adhesive remaining on the paper or fabric. Furthermore, because the area to which heat is applied cannot be precisely controlled, excessive heat is applied to other areas of the paper, resulting in the deterioration of the paper medium, textile, or other object being repaired. Summary of the Invention

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method and apparatus for removing repair tape that allows heating of the repair tape from the adhesive surface side and that can limit the heated area. [Means for solving the problem]

[0007] In order to achieve the above object, the method of the present invention for removing repair tape adhered to the surface of an object to be repaired uses a heating element having a heating surface, places the back surface of the object to be repaired on the heating surface with the repair tape facing up, positions at least a separation portion where the repair tape is to be peeled off from the object to be repaired on the heating surface, heats the adhesive from the side of the object to be repaired by the heating surface, and moves the separation portion while softening the adhesive on the side of the object to be repaired of the repair tape. In The method is characterized in that a work table having a work plane and the heating surface on a part of the work plane is used, and the work plane supports the back surface of the object to be repaired without bending the object to be repaired, while the separation area is heated by the heating surface, and the heating element is moved to match the separation area to heat it.

[0008] In order to achieve the above object, the device for removing repair tape adhered to the surface of the object to be repaired of the present invention comprises a work table having a work plane that supports the back surface of the object to be repaired, a heating surface arranged on a part of the work plane that heats the adhesive layer of the repair tape through the object to be repaired, The work surface has a groove having a predetermined width, and a heating device having the heating surface is disposed in the groove. It is characterized by: [Effects of the Invention]

[0009] The repair tape removal method and removal device of the present invention allows heating from the side of the object to be repaired, thereby softening the adhesive on the repair tape near the surface of the object to be repaired, and reducing the possibility of the adhesive remaining on the surface of the object to be repaired when the repair tape is peeled off.

[0010] In addition, depending on the repair tape removal method and removal device, a heating surface can be used to pinpoint the area where the repair tape is separated from the object to be repaired, thereby avoiding the heating from affecting other areas of the object to be repaired. [Brief explanation of the drawings]

[0011] [Figure 1] 1A is a perspective view showing an embodiment of a repair tape removal method of the present invention, and FIG. 1B is a side cross-sectional view of the same embodiment. [Figure 2] 1(a) to 1(c) are perspective views showing the structure and usage of a first embodiment of a repair tape removal device of the present invention. [Figure 3] 10(a) is a perspective view of a second embodiment of the repair tape removal device, and FIG. 10(b) is a perspective view of a third embodiment. [Figure 4] FIG. 10 is a perspective view of a fourth embodiment of the repair tape removal device. DETAILED DESCRIPTION OF THE INVENTION

[0012] (Embodiment of repair tape removal method) An embodiment of the repair tape removal method of the present invention will be described with reference to Figure 1. Figures 1(a) and 1(b) illustrate the specific steps of removing repair tape 2 from an object 1 to be repaired, such as a paper medium or fabric, that has been repaired with repair tape 2.

[0013] The repair tape 2 has an adhesive layer 22 formed on the underside of a substrate 21, which serves as a carrier, and the repair tape 2 is attached to the surface 1A side of the object to be repaired 1 by this adhesive layer 22. That is, the adhesive layer 22 is composed of a substrate-side layer 22a and an object-to-be-repaired layer 22b.

[0014] When one end 2x of this repair tape 2 is pulled up to separate it from the object to be repaired 1, a separation area S is formed between the surface 1A of the object to be repaired 1 and the layer 22b of the adhesive layer 22 facing the object to be repaired.In order to soften the adhesive layer 22 at this separation area S, the adhesive layer 22 at this area is heated.

[0015] The heating device 10, which is the heating element that performs this heating operation, is composed of a heating plate 11 having a heating surface 11a on its upper surface and an electric heater box 12 that provides heat to this heating plate 11, and the amount of heat generated is controlled by a control device 20 that supplies power to the heating device 10. The control device 20 steadily supplies a predetermined current and voltage to the electric heater box 12 in order to keep the temperature of the heating surface 11a of the heating plate 11 constant.

[0016] The heating plate 11 is made of a material with good thermal conductivity, such as titanium, copper, aluminum, or other metal, or ceramic. The electric heater box 12 houses an electric heating coil or ceramic heater within its body, and is designed to heat the heating plate 11 from below.

[0017] Then, the heating device 10 is placed below the object to be repaired 1, and heats the separated portion S of the repair tape 2 from the back surface 1B side. In other words, the adhesive layer 22 of the repair tape 2 is heated by the heat transmitted through the object to be repaired 1.

[0018] As a result, the adhesive layer 22 of the repair tape 2 has a layer 22b on the side of the object to be repaired that has a greater heat content than the layer 22a on the side of the substrate, and by pulling up the substrate 21 in this softer state, adhesive is less likely to remain on the surface 1A of the object to be repaired 1, and the repair tape 2 can be separated.

[0019] Furthermore, the heating surface 11a of the heating plate 11 has dimensions of approximately 4 cm x 10 cm, and this heating surface 11a moves and positions the heating device 10 in response to the movement of the separation area S of the repair tape 2. In other words, the heating surface 11a heats the object 1 to be repaired only in the vicinity of the separation area S that requires heating, so other areas of the object 1 to be repaired are not heated, and there is no risk of unnecessarily deteriorating the object 1 to be repaired.

[0020] (First embodiment of repair tape separating device) A first embodiment of a separating device that embodies the repair tape separating method described above will be described with reference to FIGS. 2(a) to 2(c).

[0021] 2(a), the separation device A of this embodiment has a work table 30 on the top surface of which a work plane 30a measuring approximately 30 cm wide x 40 cm long is formed, and which further has a groove 31 formed in the center. The above-mentioned heating device 10 is fitted into this groove 31.

[0022] That is, the width of groove 11 is approximately the same as the width of heating device 10, and walls 31a and 31b on both sides act as guides, allowing heating device 10 to move vertically within groove 31.

[0023] The heating surface 11a of the heating plate 11 is set at the same height as the working surface 30a of the work table 30, and the two are flush and share the same plane. The temperature of the heating surface 11a of the heating plate 11 during work is selected appropriately depending on the type of adhesive (acrylic, natural rubber) of the repair tape 2 to be removed and the material, thickness, and condition of the heat-transmitting object to be repaired 1, but is controlled within the range of approximately 30°C to 100°C.

[0024] As shown in Figure 2(b), the object 1 to be repaired from which the repair tape 2 is to be removed is placed on the work surface 30a of the workbench 30. At this time, the front surface 1A of the object 1 to be repaired to which the repair tape 2 is attached is placed up, and the back surface 1B is joined to the work surface 30a.

[0025] Then, the object to be repaired 1 is placed so that the longitudinal direction of the repair tape 2 is aligned with the groove 31 of the workbench 30, and at this time, the heating surface 11a of the heating device 10 in the groove 31 is positioned so that it coincides with the vicinity of one end 2x of the repair tape 2.

[0026] In this state, the control device 20 is switched on, the heating surface 11a of the heating device 10 is kept at an appropriate temperature near the end 2 of the repair tape 2, and the adhesive layer 22 of the repair tape 2 is heated from the side of the object 1 to be repaired.

[0027] As shown in Figure 2(c), the adhesive layer 22 of the heated repair tape 2 becomes soft, and when one end 2x of the repair tape 2 is pulled up, the adhesive layer 22 is peeled off from the surface 1A of the object 1 to be repaired together with the substrate 21.

[0028] At this time, the heat transferred from the heating plate 11 to the repair tape 2 via the object to be repaired 1 is smaller in the layer 22b of the object to be repaired than in the layer 22a of the substrate side, even though they are both in the same adhesive layer 22, and the hardness of the layer 22a of the substrate side is relatively maintained. As a result, the substrate 21 and the adhesive layer 22 do not separate but peel off together, preventing part of the adhesive layer 22 from remaining on the surface 1A of the object to be repaired 1.

[0029] When lifting the repair tape 2 from the object to be repaired 1, the worker must hold down the entire object to be repaired 1 firmly so that it does not move. As described above, the work table 30 has a work surface 30a on which the entire object to be repaired 1 can be placed, and the heating surface 11a of the heating plate 11 is flush with the work surface 30a. With this removal device A, the worker can hold down the object to be repaired 1 flat without deforming it, reducing the risk of bending or other damage to the object to be repaired 1, even if the object to be repaired is an old book, a rare book, or a valuable textile.

[0030] Furthermore, the separation area S between the repair tape 2 and the object to be repaired 1 gradually moves toward the other end 2y of the repair tape 2, but in this removal device A, the heating device 10 can be moved using the groove 31 as a guide, so that it can be adjusted so that it is always positioned near the bottom of the separation area S.

[0031] In this embodiment A, the heating device 10 is manually moved within the groove 31 by the worker as appropriate depending on the position of the repair tape 2, but of course, the moving means can be a connected wire winding device, or a variety of structures can be selected, such as a ball screw structure.

[0032] As described above, according to the removal device A of this embodiment, stable work can be performed on the workbench 30, and the heating device 10 can be moved to match the separation portion S of the repair tape S, so that heat can be applied to unnecessary portions of the object to be repaired 1, thereby maintaining high work quality.

[0033] (Second and third embodiments of the repair tape separating device) 3(a) shows a second embodiment of the repair tape separating device of the present invention. Note that, hereinafter, the same components as those in other separating devices will be given the same reference numerals and their explanation will be omitted.

[0034] The separating device B of this embodiment has a structure in which a heating device 40 having the same dimensions as the length, width and depth of the groove 31 of the work table 30 is fitted into the groove 31.

[0035] This heating device 40 is attached to the top of an electric heater box 42 with a heating plate 41 having the same length and width as the groove 31, and its heating surface 41a is flush with the work surface 30a of the work table 30, so that the work table 30 has a structure that minimizes steps.

[0036] Regarding the heating structure of the heating plate 41, the entire surface may be heated uniformly by an electric heater box 42, or multiple ceramic heaters or electric heating wires may be arranged in blocks within the electric heater box 42, thereby allowing selective heating of specific areas of the heating surface 41.

[0037] Next, FIG. 3(b) shows a third embodiment of the repair tape separating device of the present invention.

[0038] The heating device 50 of the separating apparatus C of this embodiment has the same dimensions as the length, width, and depth of the groove 31 of the work table 30, similar to the separating apparatus B, and is fitted into the groove 31 so as to fill it.

[0039] The heating device 50 has an electric heater box 52 similar to the heating device 40 of the separation device B, but the heating plate 51 attached thereto has a semi-cylindrical shape with a gently curved cross section in the width direction, and the heating surface 51a has a structure that protrudes in a ridge shape relative to the working surface 30a of the work table 30. In this way, the shape of the heating surface does not necessarily have to be flat, and various shapes can be selected.

[0040] With this structure of the heating surface 51a, even when the object to be repaired 1 is placed on the workbench 30, the worker can feel the position of the heating surface 51a and easily align it with the repair tape 2. Furthermore, because the protruding shape is gentle, deformation of the object to be repaired 1 due to this shape can be kept to a minimum.

[0041] (Fourth embodiment of repair tape separating device) Furthermore, a fourth embodiment of the repair tape separating device of the present invention will be shown with reference to FIG.

[0042] The heating device 60 of the separating apparatus D of this embodiment is disposed at an arbitrary position within the groove 31 of the work table 30 when in use, similarly to the separating apparatus A of the first embodiment.

[0043] The heating device 60 has an electric heater box 62 similar to that of the separation device A, but the heating surface 61a of the heating plate 61 attached above it has one end 61a1 formed into a tapered shape that gradually decreases in width, and the other end 61a2 formed into an arc shape that similarly gradually decreases in width.

[0044] Therefore, if the repair tape 2 to be removed is thin and it is necessary to avoid heating unnecessary areas, by adjusting the position of the object to be repaired 1 placed on the heating surface 61a, more delicate removal work can be performed while limiting the heating range using one end 61a1 or the other end 61a2 of the narrower heating surface 61a. [Explanation of symbols]

[0045] A, B, C, D Repair tape separation device 1. Object to be repaired 1A surface 1B Back side 2 Repair tape 21 Base material 22 Adhesive layer (adhesive) 22a Base material side layer 22b Side layer of repaired object 2 x Repair Tape Ends 2y The other end of the repair tape 10, 40, 50, 60 Heating device (heating element) 11, 41, 51, 61 Heating plates 11a, 41a, 51a, 61a heating surface 12, 42, 52, 62 Electric heater box 20 Control device 30 Workbench 30a working plane 31 Groove S Separation point (between the repaired object and the repair tape)

Claims

1. A method for removing repair tape attached to a surface of an object to be repaired, comprising: A heating element having a heating surface is used, The back surface of the object to be repaired is placed on the heating surface with the repair tape facing up; At least a separation portion where the repair tape is to be peeled off from the object to be repaired is positioned on the heating surface; The adhesive of the repair tape is heated from the back side of the object to be repaired by the heating surface, and the separated portion is moved while the adhesive on the object to be repaired side is softened, A work table having a working plane and a heating surface on a part of the working plane is used, and the separated portion is heated by the heating surface while the working plane supports the back surface of the object to be repaired without bending the object to be repaired; A repair tape removal method characterized in that the heating element is moved to coincide with the separation portion and heating is performed.

2. A repair tape removal device for a repair object, comprising: a work table having a work plane that supports the rear surface of the object to be repaired; a heating surface disposed on a portion of the work plane for heating the adhesive layer of the repair tape through the object to be repaired; A repair tape removal device, characterized in that the work plane has a groove having a predetermined width, and a heating device having the heating surface is disposed in the groove.

3. The repair tape removal device according to claim 2, A repair tape removal device characterized in that the heating device is capable of selectively moving its position within the groove.

4. The repair tape removal device according to claim 2, A repair tape removal device characterized in that the heating surface has a shape that narrows in width at at least one end, and the heating width can be changed by adjusting the position where the object to be repaired is placed against the heating surface.

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