JP2017105630A - Manufacturing method of glass roll, and glass roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent positional deviation of both tape bodies at the time of manufacturing a glass roll by winding a belt-like glass film with a leader, which is obtained by pasting tape bodies from both front and rear sides, around both connection end parts of the leader and the belt-like glass film in a roll shape.SOLUTION: When manufacturing a glass roll 1 by winding a belt-like glass film 6 with a leader, which is obtained by pasting tape bodies 4, 5 from both front and rear sides, around both connection end parts 2a, 3a of a leader 2 and a belt-like glass film 3 in a roll shape, each of the tape bodies 4 and 5 is bonded in a state including excess parts 4b, 5b which respectively protrude from both connection end parts 2a, 3a to both sides in a width direction.SELECTED DRAWING: Figure 3

Description

  The present invention is a glass by winding a strip-shaped glass film with a leader obtained by sticking a tape body from both the front and back sides to both connecting ends of a strip-shaped sheet body and a strip-shaped glass film. The present invention relates to a roll manufacturing method and a glass roll.

  In recent years, mobile devices such as smartphones and tablet PCs, which are rapidly spreading, are required to be lightweight, and therefore, glass substrates used in such devices are currently being made thinner. It is. And as what responds to such a request | requirement, the glass film which thinned the glass substrate to the film form (for example, thickness is 300 micrometers or less) has come to be developed.

  Since the thickness of the glass film is extremely thin, the glass film is flexible enough to be easily bent by hand. Thereby, for example, the band-shaped glass film continuously formed by the downdraw method can be wound around the core in a roll shape to form a glass roll. Moreover, it is also possible to perform various processes (for example, a cutting | disconnection, washing | cleaning, etc. of an unnecessary part) to a strip | belt-shaped glass film in the form of a roll to roll using this glass roll.

  The roll-to-roll form is a glass roll that is wound around the first core and is continuously unwound from the first core and transported. After that, the strip-shaped glass film after the treatment is re-rolled around a second core different from the first core to form a glass roll again.

  When using this roll-to-roll form, a leader (e.g., a resinous belt-like sheet body) for pulling the belt-like glass film and guiding it to the second core during the execution of the form, May be connected to a strip glass film. Here, Patent Document 1 discloses an example of an aspect in which a leader and a strip glass film are connected.

  In the aspect disclosed in this document, tape bodies are attached to both connecting end portions of the leader and the strip-shaped glass film from both the front and back sides to connect them. The tape body stuck on each of the front and back surfaces has the same length as the width dimension of the leader and the strip-shaped glass film, and the respective positions of both ends of the tape body are aligned with the end faces in the width direction of both connecting ends ( (Refer to FIGS. 5 and 6 of the same document). In addition, the belt-like glass film with a leader formed by connecting the two is usually rolled up into a glass roll and temporarily stored or shipped in the state of the glass roll.

Special table 2013-544228 gazette

  By the way, when manufacturing a glass roll by winding a strip-like glass film with a leader into a roll, when connecting the leader and the strip-like glass film in the above-described manner, the following problems to be solved have occurred. .

  That is, in the above aspect, as shown in FIG. 5A, when the tape bodies T1 and T2 are attached to both connecting ends La and Ga of the leader L and the belt-like glass film G from the front and back sides, respectively. There is a problem that it is difficult to grasp the relative positional relationship between the tape bodies T1 and T2. This is because the back side tends to be a blind spot from the front side of the leader L and the strip-shaped glass film G, and conversely, the front side tends to be a blind spot from the back side. More specifically, it is difficult to visually recognize the tape body T2 attached to the back side from the front side of the leader L and the belt-like glass film G, and it is difficult to visually recognize the tape body T1 attached to the front side from the back side. As a result, it is difficult to view both the tape bodies T1 and T2 at the same time, which causes the above-described problems.

  For this reason, it is difficult to match the attachment positions of the two tape bodies T1 and T2 on the front and back sides of both the connecting end portions La and Ga. As shown in FIG. 5B, both tape bodies T1 (illustrated by solid lines). ), T2 (illustrated by a broken line) is stuck in a state in which the position is shifted. And when both tape bodies T1 and T2 have caused the position shift, after manufacturing a glass roll, when processing the strip glass film G in the form of a roll-to-roll, the strip glass film G The conveyance becomes unstable. As a result, it has been difficult to perform processing on the strip-shaped glass film G as desired.

  The present invention made in view of the circumstances as described above, rolls a belt-like glass film with a leader obtained by sticking a tape body from both the front and back sides to both connecting ends of the leader and the belt-like glass film. When manufacturing a glass roll by taking it, it makes it a technical subject to prevent position shift of both tape bodies.

  The present invention devised to solve the above-mentioned problems is a belt-like glass with a leader obtained by sticking a tape body from both the front and back sides to both connecting ends of a leader made of a belt-like sheet and a belt-like glass film. It is a method of manufacturing a glass roll by winding a film into a roll, and each of the tape bodies is stuck in a state including an excess part that protrudes from both connecting ends to both sides in the width direction. It is characterized by that.

  In this method, each of the two tape bodies is stuck in a state including an excessive portion that protrudes from both connecting end portions to both sides in the width direction. Since this surplus part protrudes from both connection end parts, it is possible to visually recognize the surplus part of both tape bodies simultaneously from either the front side or the back side of the leader and the strip-shaped glass film. . Due to the presence of the surplus portion, the relative positional relationship between the two tape bodies can be easily grasped. As a result, both tape bodies can be attached without positional deviation.

  In the above method, it is preferable to start the other sticking after the one sticking of both tape bodies is completed.

  If it does in this way, it will be in the state where this one was positioned by completing one sticking among both tape bodies. And since one sticking is started under the state where one was positioned, it becomes easy to stick the other to one without a position gap. Thereby, it becomes possible to stick both tape bodies more accurately and without positional displacement.

  In the above method, it is preferable to cut and remove the surplus part along each of both end faces in the width direction of both connecting ends after pasting both tape bodies.

  In this way, since the excess part is cut and removed along the width direction both end faces of both connecting end parts after the both tape bodies are adhered, after manufacturing the glass roll, a strip-like glass film in the form of a roll-to-roll. In such a case, it is possible to eliminate the possibility that the surplus part will adversely affect the processing.

  In the above method, it is preferable to cut and remove the surplus portion so that the protruding portion still protruding from both connecting end portions remains after the surplus portion is cut and removed.

  In this way, the protruding portion remains even after the excess portion is cut and removed, so that the tape body can be easily peeled off from the leader and the band-shaped glass film by picking the protruding portion. Thereby, when peeling a tape body in the process after manufacture of a glass roll, the operation | work can be performed rapidly.

  In the above method, the protruding portions on both sides of the front and back surfaces may be overlapped and bonded to each other, so that each of both end surfaces in the width direction of both connecting end portions may be covered with the protruding portions.

  If it does in this way, since tape bodies are bonded together by the protrusion part of both front and back, it becomes easy to avoid peeling of a tape body.

  In the above method, each of both end surfaces in the width direction of both connecting end portions may be exposed without being covered with the protruding portion.

  If it does in this way, in the process after manufacture of a glass roll, when peeling a tape body, a tape body can be peeled from the said strip-shaped glass film, without touching the width direction both end surfaces of a strip-shaped glass film. Accordingly, it is possible to prevent the occurrence of problems such as the breakage of the band-shaped glass film due to the contact with both end faces in the width direction.

  In the above method, (A) a part of a single tape body is pasted as one of the two tape bodies, and another part is pasted as the other of the two tape bodies. The part and another part may be separated along with the cutting and removal of the surplus part, or (B) the two tape bodies may be set as separate tape bodies before these are attached.

  In the case of (A), in comparison with the case of (B), only the single tape body is attached, and the attaching operation is completed. Can be shortened. On the other hand, in the case of (B), in comparison with the case of (A), if a tape body shorter than the single tape body in (A) is used as the front and back tape bodies, Since it is good, the space required for the sticking work can be reduced.

  In said method, it is preferable to stick both tape bodies in the state which provided the clearance gap between both connection edge parts, respectively.

  In this way, since a gap is provided between both connecting end portions, both the connecting end portions are processed in the form of roll-to-roll after the glass roll is manufactured. It is easy to avoid contact or sliding. As a result, generation | occurrence | production of malfunctions, such as a strip glass film breaking, can be prevented more suitably.

  In said method, it is preferable to make a leader and a strip | belt-shaped glass film into the same width dimension, and to make the position of the centerline in both width direction correspond. Here, the “same width dimension” means that the width dimension of the leader is 98% to 102% based on the width dimension of the belt-shaped glass film.

  If it does in this way, when manufacturing a strip | belt-shaped glass film with the form of a roll-to-roll after manufacture of a glass roll, the following effects and effects can be acquired. That is, when the treated glass ribbon film is rewound around the core to form a glass roll again, in order to prevent the occurrence of winding deviation, the position of the end face in the width direction of the leader and the glass ribbon film is a sensor or the like. May be wound while detecting. At this time, if the width dimension of the leader is the same as the width dimension of the belt-shaped glass film, and the positions of the center lines in the width direction of both the leaders coincide, Since the position with the end surface in the width direction is aligned, it is possible to wind up the leader and the band-shaped glass film without miswinding.

  Moreover, when the manufacturing method of said glass roll is completed, the strip | belt-shaped glass film with a leader connected with the tape body by which both the connection end parts of the leader which consists of a strip | belt-shaped sheet | seat body, and the strip | belt-shaped glass film were each stuck on the front and back both sides. , A glass roll wound in a roll shape, each of the two tape bodies has a protruding portion that protrudes to both sides in the width direction from both connecting ends, and the protruding portions on both sides of the front and back In a state of being overlapped and bonded to each other, a glass roll is obtained that covers each of both end faces in the width direction of both connecting ends.

  According to such a glass roll, it is possible to obtain the same actions and effects as those already described with respect to the aspect corresponding thereto in the description relating to the method of manufacturing the glass roll.

  Moreover, when the manufacturing method of said glass roll is completed, the strip | belt-shaped glass film with a leader connected with the tape body by which both the connection end parts of the leader which consists of a strip | belt-shaped sheet | seat body, and the strip | belt-shaped glass film were each stuck on the front and back both sides. , A glass roll wound in a roll shape, each of the two tape bodies has a protruding portion protruding from both connecting end portions on both sides in the width direction, and the protruding portion is connected to both The glass roll exposed without covering each of the width direction both end surfaces of an edge part is obtained.

  According to such a glass roll, it is possible to obtain the same actions and effects as those already described with respect to the aspect corresponding thereto in the description relating to the method of manufacturing the glass roll.

  According to the present invention, a glass roll is manufactured by winding a strip-like glass film with a leader obtained by sticking a tape body to both connecting end portions of the leader and the strip-like glass film from both front and back sides in a roll shape. In doing so, it is possible to prevent positional deviation between the two tape bodies.

It is a perspective view which shows the glass roll which concerns on 1st embodiment of this invention. It is a perspective view which shows the glass roll which concerns on 2nd embodiment of this invention. It is a top view which shows the manufacturing method of the glass roll which concerns on 1st embodiment of this invention. It is a top view which shows the manufacturing method of the glass roll which concerns on 2nd embodiment of this invention. Fig.5 (a) is a vertical side view which shows the manufacturing method of the conventional glass roll, FIG.5 (b) is a top view which shows the manufacturing method of the conventional glass roll.

  Hereinafter, a glass roll and a glass roll manufacturing method according to embodiments of the present invention will be described with reference to the accompanying drawings.

<First embodiment (glass roll)>
Hereinafter, the glass roll which concerns on 1st embodiment of this invention is demonstrated.

  As shown in FIG. 1, the glass roll 1 which concerns on 1st embodiment of this invention is equipped with the leader 2 which consists of a strip | belt-shaped sheet body, and the strip | belt-shaped glass film 3 as the main component. For both the connecting end portions 2a, 3a of the connecting end portion 2a of the leader 2 and the connecting end portion 3a of the belt-like glass film 3, the front side and the back side so as to straddle the entire width of the connecting end portions 2a, 3a. The tape bodies 4 and 5 are stuck to each. And the leader 2 and the strip | belt-shaped glass film 3 are connected in series by both the tape bodies 4 and 5, and the strip | belt-shaped glass film 6 with a leader is comprised.

  Here, the leader 2 is formed to a thickness that can impart flexibility to the leader 2, and can be made of, for example, a resin having a thickness of 300 μm or less. Moreover, the strip glass film 3 is shape | molded to the thickness which can provide flexibility to the said strip glass film 3 similarly to the leader 2, For example, it is comprised with the glass by which the thickness was 300 micrometers or less. Is possible. Furthermore, as the tape bodies 4 and 5, for example, a resin adhesive tape or the like can be used.

  In FIG. 1, in order to clarify the mode of connection between the leader 2 and the strip glass film 3, only the strip glass film 3 is wound around the core 7, and the leader 2 is unwound from the core 7. FIG. In practice, however, the glass strip 1 and the leader 2 are both wound around the core 7 to constitute the glass roll 1. Moreover, although illustration is abbreviate | omitted in FIG. 1, the strip | belt-shaped glass film 3 is wound up in the state piled up with the protective sheet for protecting the said strip | belt-shaped glass film 3. FIG.

  The width dimension W1 of the leader 2 and the width dimension W2 of the belt-shaped glass film 3 are the same. Here, the “same dimension” means that the width dimension W1 has a size of 98% to 102% on the basis of the width dimension W2. Preferably, the width dimension W1 is 99.5% to 100.5% on the basis of the width dimension W2. In addition, the position of the center line C in the width direction coincides between the leader 2 and the band-shaped glass film 3. Thereby, the position of the width direction end surface 2b of the leader 2 and the position of the width direction end surface 3b of the band-shaped glass film 3 are aligned as seen from the direction in which the band-shaped glass film 6 with a leader is viewed in plan. Further, a gap 8 is formed between the connecting end 2 a of the leader 2 and the connecting end 3 a of the strip glass film 3. The width of the gap 8 (the width along the longitudinal direction of the strip-shaped glass film 6 with a leader) is to prevent the contact and sliding of the connecting end portions 2a and 3a during the execution of the roll-to-roll configuration. The width is preferably 1 mm or more.

  The tape body 4 on the front side and the tape body 5 on the back side have the same length (length along the width direction of the strip-shaped glass film 6 with a leader) and the same width (long length of the strip-shaped glass film 6 with a leader). Width along the direction). Each of the tape bodies 4 and 5 is stuck so that the longitudinal direction thereof is parallel to the width direction of the strip-shaped glass film 6 with a leader. Moreover, both the tape bodies 4 and 5 are stuck so that it may mutually oppose on the front and back of both the connection end parts 2a and 3a. That is, both the tape bodies 4 and 5 are stuck so that the outlines of both the tape bodies 4 and 5 overlap when viewed from the direction in which the belt-like glass film 6 with a leader is viewed in plan. Furthermore, each of the tape bodies 4 and 5 is evenly attached to both the connecting end 2 a of the leader 2 and the connecting end 3 a of the strip-shaped glass film 3. In addition, each of the tape bodies 4 and 5 has protruding portions 4a and 5a that protrude from both connecting end portions 2a and 3a to both sides in the width direction. The protruding portions 4a and 5a are exposed without covering the width direction end surfaces 2b and 3b of both the connecting end portions 2a and 3a.

  Here, if the length Z of the protruding portions 4a and 5a is too long, the protruding portions 4a and 5a may adversely affect the processing of the strip-shaped glass film 3 during the execution of the roll-to-roll form. is there. Further, if the length Z of the protruding portions 4a and 5a is too short, it becomes difficult to pick up the protruding portions 4a and 5a. And when making it peel from strip | belt-shaped glass film 3, there exists a possibility that the operation | work cannot be performed rapidly. For this reason, the length Z of the protruding portions 4a and 5a is preferably in the range of 0.05 mm to 2 mm, and more preferably in the range of 0.1 mm to 1 mm.

  Hereinafter, main actions and effects of the glass roll 1 according to the first embodiment will be described.

  According to the glass roll 1 which concerns on 1st embodiment, in the process after manufacture of the glass roll 1, when peeling both the tape bodies 4 and 5, the said width direction end surface 3b of the strip | belt-shaped glass film 3 is touched. Both tape bodies 4 and 5 can be peeled from the strip-shaped glass film 3. Accordingly, it is possible to prevent the occurrence of problems such as breaking of the band-shaped glass film 3 due to contact with the width direction end surface 3b.

<Second embodiment (glass roll)>
Hereinafter, the glass roll which concerns on 2nd embodiment of this invention is demonstrated. In the description of the second embodiment, the elements that have already been described in the first embodiment described above are omitted by overlapping with the same reference numerals in the drawings referred to in the description of the second embodiment. Only differences from the first embodiment will be described.

  As shown in FIG. 2, the glass roll 1 according to the second embodiment of the present invention is different from the glass roll according to the first embodiment in that the protruding portions 4 a and 5 a are overlapped. It is the point which has covered the width direction end surfaces 2b and 3b of both the connection end parts 2a and 3a in the state bonded together.

  The protruding portions 4a and 5a cover the width direction end surfaces 2b and 3b without being in close contact with the width direction end surfaces 2b and 3b of the connecting end portions 2a and 3a. That is, the protruding portions 4a and 5a are in a state of being lifted from the width direction end faces 2b and 3b. Due to the protruding portions 4a and 5a, the gap 8 formed between the connecting end portions 2a and 3a is surrounded by the connecting end portions 2a and 3a and the tape bodies 4 and 5. Yes.

  In the present embodiment, the protruding portions 4a and 5a are lifted from the width direction end faces 2b and 3b, but this is not restrictive. The protruding portions 4a and 5a may be adhered to the width direction end surfaces 2b and 3b and may be in close contact with the width direction end surfaces 2b and 3b.

  Hereinafter, main actions and effects of the glass roll 1 according to the second embodiment will be described.

  According to the glass roll 1 which concerns on 2nd embodiment, since both the tape bodies 4 and 5 are bonded together by the protrusion parts 4a and 5a, it becomes easy to avoid peeling of both the tape bodies 4 and 5. FIG.

<First embodiment (manufacturing method of glass roll)>
Hereinafter, the manufacturing method of the glass roll which concerns on 1st embodiment of this invention for manufacturing the glass roll which concerns on each said embodiment is demonstrated. In addition, in description of this glass roll manufacturing method, about the element already demonstrated by description of the glass roll which concerns on each said embodiment, the same code | symbol is attached | subjected to drawing referred in description of this glass roll manufacturing method. Thus, a duplicate description is omitted.

  As shown in FIGS. 3 (a) to 3 (c), the glass roll manufacturing method according to the first embodiment of the present invention is applied to both connecting end portions 2 a and 3 a of the leader 2 and the strip-shaped glass film 3 from the back side. Each of the back side sticking process (FIG. 3 (a)) which sticks the tape body 5, the front side sticking process (FIG. 3 (b)) which sticks the tape body 4 from the front side, and both tape bodies 4 and 5 The cutting and removing step (FIG. 3C) for cutting off and removing the excess portions 4b and 5b protruding from both the connecting end portions 2a and 3a. In addition, the strip | belt-shaped glass film 3 is wound around the core (illustration omitted) in the state already overlapped with the protection sheet (illustration abbreviation) before execution of a back side sticking process. And the connection end part 3a of the strip | belt-shaped glass film 3 is a site | part which became the last part of the strip | belt-shaped glass film 3 in the case of winding.

  In the back side sticking process, first, as the tape body 5, a tape body longer than the width dimensions W1 and W2 of the leader 2 and the strip-shaped glass film 3 is prepared. Next, in a state where both the connecting end portions 2a and 3a are abutted so that a gap 8 is provided between them, the tape body 5 has a longitudinal direction parallel to the width direction of the leader 2 and the band-shaped glass film 3. Adhere to be. At this time, the tape body 5 is pasted together including the surplus portions 5b protruding from both the connecting end portions 2a and 3a to both sides in the width direction. Thus, the back side attaching process is completed.

  Here, in order to make it easy to cut the surplus portion 5b in a cutting and removing process that is performed later, the protrusion length Y that the surplus portion 5b protrudes from both the connecting end portions 2a and 3a is 5 mm or more. Is preferable, and it is more preferable to set it as 10 mm or more.

  When the back side sticking process is completed, the front side sticking process is started. Also in this front side sticking process, similarly to the back side sticking process, first, as the tape body 4, a tape body longer than the width dimensions W1 and W2 of the leader 2 and the belt-like glass film 3 is prepared. The tape body 4 is a separate body independent of the tape body 5 described above. Next, while confirming the position of the surplus part 5b of the tape body 5 that has already been adhered from the direction in which the leader 2 and the band-shaped glass film 3 are viewed in plan, the surplus part 5b of the tape body 5 and the tape body 4 The tape body 4 is stuck so that the surplus part 4b overlaps in plan view. Thus, the front side sticking step is completed.

  Here, for the same reason as the execution of the back side sticking step, the protrusion length Y of the surplus portion 4b is preferably 5 mm or more, and more preferably 10 mm or more. Further, the protrusion length Y may be the same or different between the surplus portion 5b and the surplus portion 4b.

  In addition, in this embodiment, after the back side sticking process is completed, although the front side sticking process is started, it is not this limitation. After the front side sticking process is completed, the back side sticking process may be started. Moreover, you may perform a front side sticking process and a back side sticking process simultaneously. When performing both processes simultaneously, for example, while confirming the position of the surplus part 4b of the tape body 4 and the surplus part 5b of the tape body 5 from the direction which planarly views the leader 2 and the strip-shaped glass film 3, it confirms. Both tape bodies 4 and 5 may be attached simultaneously.

  When the back side sticking step and the front side sticking step are completed, the cutting and removing step is executed. In this cutting and removing step, the excess portions 4b and 5b in each of the tape bodies 4 and 5 are cut and removed along the width direction end faces 2b and 3b of the both connecting end portions 2a and 3a. The surplus portions 4b and 5b can be cut with, for example, a scissors or a cutter. Moreover, the excess part 4b and the excess part 5b may cut | disconnect these simultaneously, and may cut | disconnect separately. When cutting and removing the surplus portions 4b and 5b, the surplus portions 4b and 5a remain so that the protruding portions 4a and 5a still protrude from both the connecting end portions 2a and 3a even after the cutting and removal. , 5b is cut and removed. Thereby, the cutting and removing step is completed. Moreover, the strip | belt-shaped glass film 6 with a leader formed by connecting the leader 2 and the strip | belt-shaped glass film 3 by the completion of a cutting | disconnection removal process is produced.

  After completion of the cutting and removing step, the protrusions 4a and 5a are already wound around the core (not shown) in a state where the width direction end surfaces 2b and 3b of both the connecting ends 2a and 3a are exposed without being covered. If the reader | leader 2 is wound up after the strip | belt-shaped glass film 3 already taken, the glass roll which concerns on said 1st embodiment can be manufactured. On the other hand, the protruding portions 4a and 5a are overlapped and bonded to each other, and the leader 2 is wound up after the band-shaped glass film 3 in a state of covering the width direction end surfaces 2b and 3b of both the connecting end portions 2a and 3a. For example, the glass roll which concerns on said 2nd embodiment can be manufactured. In addition, when covering the width direction end surfaces 2b and 3b with the protruding portions 4a and 5a, the protruding portions 4a and 5a are brought into close contact with the width direction end surfaces 2b and 3b or are brought into a floating state without being in close contact. May be appropriately selected.

  Hereinafter, main actions and effects of the glass roll manufacturing method according to the first embodiment will be described.

  In the manufacturing method of the glass roll which concerns on 1st embodiment, each of both tape bodies 4 and 5 is pasted in the state including the surplus parts 4b and 5b which each protrude in the width direction both sides from both connection edge parts 2a and 3a. To wear. Since these surplus parts 4b and 5b protrude from both connection end parts 2a and 3a, even if it is from the front side of the leader 2 and the strip | belt-shaped glass film 3, and the back side of both tape bodies 4 and 5 The surplus parts 4b and 5b can be visually recognized simultaneously. Due to the presence of the surplus portions 4b and 5b, the relative positional relationship between the two tape bodies 4 and 5 can be easily grasped. As a result, both tape bodies 4 and 5 can be stuck without positional deviation.

<Second Embodiment (Production Method of Glass Roll)>
Hereinafter, the manufacturing method of the glass roll which concerns on 2nd embodiment of this invention for manufacturing the glass roll which concerns on each said embodiment is demonstrated. In the description of the second embodiment, the elements that have already been described in the first embodiment described above are omitted by overlapping with the same reference numerals in the drawings referred to in the description of the second embodiment. Only differences from the first embodiment will be described.

  As shown in FIGS. 4A to 4C, the glass roll manufacturing method according to the second embodiment of the present invention is different from the glass roll manufacturing method according to the first embodiment described above. In the execution of the back side sticking process (FIG. 4A) and the front side sticking process (FIG. 4B), a single tape body 9 is used instead of separate tape bodies.

  In the manufacturing method of the glass roll which concerns on 2nd embodiment of this invention, the tape body which has the length more than twice the width dimension W1, W2 of the leader 2 and the strip | belt-shaped glass film 3 as a single tape body 9 is prepared. To do. And after sticking a part of single tape body 9 as the tape body 5 of the back side, the single tape body 9 is folded back by the folding line 9a (illustrated in Fig.4 (a)). Then, another part of the single tape body 9 is attached as the front tape body 4. Then, in the single tape body 9, the part stuck as the tape body 5 on the back side and the part stuck as the tape body 4 on the front side are separated along with the cutting and removal of the surplus portions 4b and 5b.

  In the present embodiment, after a part of the single tape body 9 is pasted as the back side tape body 5, another part is pasted as the front side tape body 4, but this is not restrictive. . After pasting a part of the single tape body 9 as the front tape body 4, another part may be pasted as the back tape body 5. Moreover, you may stick together a part of single tape body 9, and another part simultaneously. That is, you may perform a back side sticking process and a front side sticking process simultaneously.

  Also in the glass roll manufacturing method according to the second embodiment, it is possible to obtain the same main functions and effects as the glass roll manufacturing method according to the first embodiment.

  Here, the glass roll which concerns on this invention, and the manufacturing method of a glass roll are not limited to the structure and aspect demonstrated in said each embodiment. For example, in the above embodiment, a gap is formed between the connecting end portion of the leader and the connecting end portion of the belt-shaped glass film, but this is not restrictive. You may make it paste | paste the tape body of a front side and a back side so that both connection edge parts may be overlap | superposed in these thickness directions and it may straddle both connection edge parts which were piled up. Moreover, in the manufacturing method of the glass roll which concerns on said embodiment, although the excess part of a tape body is cut and removed by execution of a cutting removal process, it is not necessarily this limitation. You may leave an excess part in a tape body, without performing a cutting | disconnection removal process.

DESCRIPTION OF SYMBOLS 1 Glass roll 2 Leader 2a Connection end part 2b Width direction end surface 3 Band-shaped glass film 3a Connection end part 3b Width direction end surface 4 Tape body 4a Protruding part 4b Excess part 5 Tape body 5a Extruding part 5b Surplus part 6 With leader Strip glass film 8 Clearance 9 Single tape body C Center line W1 Leader width dimension W2 Strip glass film width dimension

Claims (12)

A glass roll is manufactured by winding a belt-like glass film with a leader obtained by sticking a tape body from both the front and back sides to both connecting ends of a leader and a belt-like glass film made of a belt-like sheet body. A method,
Each of the said tape bodies is stuck in the state including the excessive part which protrudes in the width direction both sides from the said both connection edge part, The manufacturing method of the glass roll characterized by the above-mentioned.   The manufacturing method of the glass roll of Claim 1 which starts the other sticking after completion of one sticking among the said tape bodies.   3. The method for producing a glass roll according to claim 1, wherein after the two tape bodies are attached, the surplus portion is cut and removed along each of both end faces in the width direction of the connecting end portions. .   4. The glass roll according to claim 3, wherein the surplus portion is cut and removed so that a protruding portion still protruding from both the connecting end portions remains even after the surplus portion is cut and removed. Manufacturing method.   5. The protruding portions are covered with the protruding portions, respectively, by overlapping the protruding portions on both sides of the front and back sides and sticking them together. Glass roll manufacturing method.   The method for producing a glass roll according to claim 4, wherein each of both end surfaces in the width direction of both the connecting end portions is exposed without being covered with the protruding portion.   After pasting a part of a single tape body as one of the two tape bodies, and pasting another part as the other of the two tape bodies, The glass roll manufacturing method according to claim 3, wherein a part of the glass roll is separated along with the cutting and removal of the surplus part.   The said both tape bodies are made into a separate tape body before these sticking, The manufacturing method of the glass roll in any one of Claims 1-6 characterized by the above-mentioned.   The method for producing a glass roll according to any one of claims 1 to 8, wherein the two tape bodies are attached in a state where a gap is provided between the two connecting end portions.   The method for producing a glass roll according to any one of claims 1 to 9, wherein the leader and the belt-shaped glass film have the same width dimension, and the positions of the center lines in the width direction are matched. . A band-shaped glass film with a leader connected by a tape body in which both connecting end portions of a leader and a band-shaped glass film made of a band-shaped sheet body are respectively attached to the front and back sides, is a glass roll wound in a roll shape,
Each of the two tape bodies has a protruding portion that protrudes from both the connecting end portions on both sides in the width direction, and the protruding portions on both sides of the front and back are overlapped and bonded to each other. The glass roll characterized by covering each of both end faces in the width direction of the both connecting end portions. A band-shaped glass film with a leader connected by a tape body in which both connecting end portions of a leader and a band-shaped glass film made of a band-shaped sheet body are respectively attached to the front and back sides, is a glass roll wound in a roll shape,
Each of the two tape bodies has a protruding portion that protrudes from the both connecting end portions to both sides in the width direction, and the protruding portion is each of both end surfaces in the width direction of the connecting end portions. A glass roll characterized by being exposed without covering.

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