JP2012224059A - Glass film laminate, glass film laminate roll, glass film laminate with pixel for color filter, and method for manufacturing glass film laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass film laminate capable of preventing the damage of a glass film and capable of being enhanced in its handling properties.SOLUTION: The glass film laminate 10 includes a support film 11 and the glass film 12 provided on the support film 11 through a self-adhesive layer 13. The glass film 12 has a width smaller than the width of the support film 11 and the width of the self-adhesive layer 13. The glass film 12 is arranged so that the support film 11 and the self-adhesive layer 13 protrude from both sides of the glass film 12, and the side regions 14 of the support film 11 and the self-adhesive layer 13 are formed on both sides of the glass film 12. The side regions 14 are provided with a folded-back parts 50 formed by folding back the support film 11 and the self-adhesive layer 13.

Description

  The present invention relates to a glass film laminate in which a glass film is laminated on a support film via an adhesive layer, a glass film laminate roll formed by winding up the glass film laminate, and a glass film on the glass film laminate. TECHNICAL FIELD The present invention relates to a glass film laminated body with a pixel for a color filter provided with a plurality of color pixels and a method for producing the glass film laminated body, and in particular, glass that can prevent damage to the glass film and improve handling properties. It is related with the manufacturing method of a film laminated body, a glass film laminated body roll, the glass film laminated body with a pixel for color filters, and a glass film laminated body.

  In general, glass plates have been conventionally used for electronic displays, architecture, furniture decoration, electronic devices, semiconductor devices, body members, and the like. Among these, in color filters used in electronic displays such as liquid crystal displays, electronic paper, and organic EL displays, a sheet-like glass plate is generally used as a substrate, and a plurality of colors are used on the glass plate. Pixels are formed in a pattern to produce a color filter. Further, a sheet-like glass plate is also used for a TFT substrate or an electrode substrate, an organic EL display element substrate, a solar cell, or the like which is a counter substrate of a color filter.

  By the way, with recent advances in glass manufacturing technology, a glass film having a thickness of about 100 μm has been manufactured. Such a glass film has flexibility and can be wound into a roll. For example, when this glass film is used as a substrate for a color filter, a color filter can be continuously produced by feeding out the glass film from a roll on which the glass film is wound, and a sheet-like glass plate is used. Compared with this, production efficiency can be improved. However, since such a glass film is thin, there is a problem that impact resistance is lowered and it is damaged during the manufacturing process.

  As a countermeasure for such a problem, a glass film laminate in which a plastic film is laminated on a glass film via an adhesive layer in order to protect the glass film is known. In such a glass film laminated body, in order to protect the edge part of a glass film, the width | variety of the plastic film is made larger than the width | variety of a glass film.

  However, in this case, the adhesive layer protrudes and is exposed on both sides of the glass film. For this reason, when a glass film laminated body was wound up in roll shape, there existed a problem that the part of the glass film laminated body which mutually adjoins with the exposed adhesion layer adhered.

  On the other hand, Patent Document 1 describes that a protective sheet is detachably attached to an adhesive layer protruding from the glass film so as to overlap both sides of the glass film.

JP 2010-228166 A

  However, in the glass film laminate shown in Patent Document 1, as described above, the protective sheet can be peeled from the adhesive layer. For this reason, the adhesive strength between the protective sheet and the adhesive layer is weak, and when the glass film laminate is wound up, or the protective sheet may be peeled off during the manufacturing process of the color filter, the handleability of the glass film laminate is improved. There was a problem. In particular, since the protective sheet and the glass film are not attached, the part of the protective sheet that is overlapped with the glass film is easily turned over. When the part of the protective sheet is turned over, the protective sheet is further peeled off. It may be easier. In addition, the glass film laminate may be transported while holding the side portion during the manufacturing process, but the side surface of the adhesive layer is exposed, so the glass film laminate is attached to a transport device or the like. There was a problem of sticking. Moreover, force may be applied to the both side parts of a glass film laminated body by a conveyance etc. during a manufacturing process. For this reason, there existed a possibility that a protective sheet might peel from an adhesive layer gradually toward the center part from the both ends of a glass film laminated body.

  The present invention has been made in consideration of such points, and is capable of preventing damage to the glass film and improving the handleability of the glass film laminate, the glass film laminate roll, and the color filter. It aims at providing the manufacturing method of the glass film laminated body with a pixel, and a glass film laminated body.

  The glass film laminated body by 1 aspect of this invention is equipped with the support film and the glass film provided on the said support film through the adhesion layer, The said glass film is the width | variety of the said support film, and the said adhesion layer The glass film is disposed such that the support film and the adhesive layer protrude from both sides of the glass film, and the support film and the adhesive layer are disposed on both sides of the glass film. A side region is formed, and at least the support film in the side region is folded.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that the said adhesion layer of the said side part area | region is also return | folded.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that a part of the said support film and the said adhesion layer by which it turned up has overlapped on the said glass film.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that the overlap amount of the said support film and the said adhesion layer, and the said glass film is 2 mm or more and 20 mm or less.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that the clearance gap has opened between the said support film and the said glass film which were turned back.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that the said clearance gap is 0.1 mm or more and 5.0 mm or less.

  In the glass film laminated body by one aspect | mode of this invention, it is preferable that the thickness of the said glass film is 5 micrometers or more and 300 micrometers or less.

  The glass film laminated body roll by one aspect | mode of this invention is a glass film laminated body roll formed by winding up a glass film laminated body, Comprising: The said glass film laminated body adheres on a support film and the said support film. A glass film provided through a layer, wherein the glass film has a width smaller than a width of the support film and a width of the adhesive layer, and the glass film is supported from both sides of the glass film. The film and the adhesive layer are arranged so as to protrude, the side regions of the support film and the adhesive layer are formed on both sides of the glass film, and at least the support film in the side region is folded. It is.

  A glass film laminate with a pixel for a color filter according to an aspect of the present invention includes a support film, a glass film laminate having a glass film provided on the support film via an adhesive layer, and the glass film laminate. A plurality of color pixels for color filters provided on the glass film, wherein the glass film has a width smaller than the width of the support film and the width of the adhesive layer, The support film and the adhesive layer are disposed so as to protrude from both sides of the glass film, and side regions of the support film and the adhesive layer are formed on both sides of the glass film, at least in the side region. The support film is folded.

  The manufacturing method of the glass film laminated body by one aspect | mode of this invention is the process of preparing the strip | belt-shaped support film provided with the adhesion layer, The strip | belt-shaped glass which has a width smaller than the width | variety of the said support film, and the width | variety of the said adhesion layer. A step of preparing a film, and affixing the glass film on the support film via the adhesive layer so that the support film and the adhesive layer protrude from both sides of the glass film; In addition, a step of forming a side region of the support film and the adhesive layer, and a step of folding the support film in the side region and joining the opposing adhesive layer to each other are provided.

  It is preferable that the manufacturing method of the glass film laminated body by one aspect | mode of this invention folds back the said adhesion layer with the said support film, and joins the said adhesion layers which faced each other.

  The manufacturing method of the glass film laminated body by one aspect | mode of this invention is the strip | belt-shaped glass which has the width | variety smaller than the width | variety of the width | variety of the said support film and the said adhesion layer, and the strip | belt-shaped support film in which the adhesion layer was provided in one surface. A step of preparing a film and a strip-shaped release film, and the glass film is disposed so that the support film and the adhesive layer protrude from both sides of the glass film, and the support is provided on both sides of the glass film. The glass film is laminated and attached to the support film via the adhesive layer so that a side region of the film and the adhesive layer is formed, and at the same time, the separation on the adhesive layer of the side region. A step of attaching a mold film to obtain a laminated intermediate, a step of winding up the laminated intermediate, and unwinding the wound up laminated intermediate; And peeling the release film from the adhesive layer, folded the support film of the side regions is one; and a step of bonding said adhesive layer opposite.

  In the manufacturing method of the glass film laminated body by one aspect | mode of this invention, it is preferable to return the said adhesion layer with the said support film, and to join the said adhesion layers which faced each other.

  In the manufacturing method of the glass film laminated body by one aspect | mode of this invention, in the process of obtaining the said laminated intermediate body, the said release film may be affixed on the said adhesion layer so that the whole of the said glass film may be covered. preferable.

  According to the present invention, the adhesive layer and the support film are folded back in the side regions formed on both sides of the glass film. The folded adhesive layer and support film can protect both sides of the glass film and prevent damage to the glass film. Moreover, it can prevent that all or many parts of the adhesion layer in a side part area | region are exposed. As a result, damage to the glass film can be prevented and the handleability of the glass film laminate can be improved.

It is a figure which shows an example of the cross-sectional structure of the color filter which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the cross-sectional structure of the glass film laminated body which concerns on the 1st Embodiment. It is a figure which shows an example of the cross-sectional structure of the glass film laminated body with a pixel for color filters by the 1st embodiment. It is a figure which shows the manufacturing apparatus of the glass film laminated body which concerns on the 1st Embodiment. It is a schematic block diagram of the shaping | molding guide which concerns on the 1st Embodiment. It is a figure explaining the return | turnback process of the support film and adhesive layer which concern on the 1st Embodiment. It is a figure which shows the manufacturing apparatus of the glass film laminated body by the modification of the same 1st Embodiment. It is a figure which shows the manufacturing apparatus of the glass film laminated body which concerns on the 2nd Embodiment of this invention. It is a figure which shows the cross-sectional structure of the lamination | stacking intermediate body in the 2nd Embodiment. It is a figure which shows an example of the cross-sectional structure of the glass film laminated body which concerns on the 3rd Embodiment of this invention. It is a figure which shows an example of the cross-sectional structure of the glass film laminated body by the modification of the same 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the scale of the drawings is for convenience of explanation and does not indicate an actual dimensional relationship.

  (First Embodiment) FIG. 1 shows a cross section of a color filter including a glass film laminate according to a first embodiment of the present invention. As shown in FIG. 1, the color filter 1 in the present embodiment includes a glass film 12 and red pixels 2, green pixels 3, and blue pixels 4 provided on the glass film 12.

  Usually, a black matrix 5 patterned in a matrix shape is provided on the glass film 12, and each pixel 2, 3, 4 is formed in each opening defined by the black matrix 5 on the glass film 12. Has been. That is, in each opening of the black matrix 2, a red pixel 2, a green pixel 3 are formed by a red (R) pixel photosensitive material, a green (G) pixel photosensitive material, and a blue (B) pixel photosensitive material. And the blue pixel 4 is formed.

  The arrangement of the pixels 2, 3, 4 is not shown, but may be a known arrangement such as a stripe arrangement, a delta arrangement (triangle arrangement), a square arrangement (four pixel arrangement), or the like. Thus, one display pixel on the screen is formed by three adjacent pixels having different colors. Further, yellow pixels (not shown) or the like may be added to form four or more color pixels.

  In addition, as the photosensitive material for forming each pixel 2, 3, and 4, a pigment dispersion type photosensitive resin composition containing a pigment of each color, a solvent, and a bonding resin (binder) can be used. As the photosensitive material for forming a photosensitive resin composition, a photosensitive resin composition in which a black pigment having a light shielding property is dispersed can be used.

  Further, as shown in FIG. 1, these pixels 2, 3, and 4 are covered with a protective layer 6. A transparent electrode film 7 made of indium tin oxide (ITO) is formed on the protective layer 6.

  Such a color filter 1 is combined with, for example, a liquid crystal element including a switching element such as a TFT and a liquid crystal layer arranged corresponding to each of the pixels 2, 3, and 4, and a surface light source. ) Or electronic paper. In this configuration, the liquid crystal is controlled by the switching element to function as a shutter, and emits light from the surface light source only through pixels of a desired color. In this way, a color image is displayed on the screen.

  The color filter 1 having the glass film 12 described above can be manufactured using the glass film laminate 10 having the glass film 12.

  Then, the glass film laminated body 10 in this Embodiment is demonstrated using FIG. The glass film laminate 10 includes a support film 11 and a glass film 12 laminated on the support film 11 via an adhesive layer 13. Among these, the support film 11 is formed of a plastic having flexibility as will be described later, and is used to reinforce the glass film 12 by making up for weakness against impact, local pressurization, and strain on the glass film 12. is there. When the single glass film 12 is wound up with a foreign substance, the glass film 12 may be easily broken due to local impact, pressurization, scratches, or the like. Therefore, by bonding the support film 11 to the glass film 12, the strength can be increased and the glass film 12 can be prevented from being damaged. Moreover, even if it is a case where the glass film 12 is cracked by bonding the support film 11 to the glass film 12, scattering of glass fragments or the like can be prevented.

  The glass film 12 has a width smaller than the width of the support film 11 and the width of the adhesive layer 13. And the glass film 12 is arrange | positioned so that the support film 11 and the adhesion layer 13 may protrude from the both sides of the glass film 12. FIG. In this Embodiment shown in FIG. 2, the glass film 12 is arrange | positioned in the center part of the width direction (The direction orthogonal to the conveyance direction of each film in FIG. 4) of the support film 11 and the adhesion layer 13. As shown in FIG. In this way, the side regions 14 of the support film 11 and the adhesive layer 13 are formed on both sides of the glass film 12.

  In addition, as shown in FIG. 2, the glass film 12 is arrange | positioned in the center part of the width direction of the support film 11 and the adhesion layer 13, and is not restricted to the width | variety of each side part area | region 14 becoming equal. The width of each side region 14 may be different. That is, as long as the support film 11 and the adhesive layer 13 protrude from both sides of the glass film 12 and the side region 14 is formed, the arrangement of the glass film 12 can be arbitrary.

  In each side region 14, a folded portion 50 in which the support film 11 and the adhesive layer 13 are folded is formed. The folded portion 50 includes a support film folded portion 51 formed by folding the support film 11 and an adhesive layer folded portion 52 formed by folding the adhesive layer 13. A part of the folded portion 50 is provided on the glass film 12. In other words, a part of the folded portion 50 overlaps the glass film 12. The overlap amount x between the folded back support film 11 and adhesive layer 13 and the glass film 12 is preferably 2 mm or more and 20 mm or less. Note that the overlap amount x may be equal in each side region 14 or may be different.

  Since the folded support film 11 and adhesive layer 13 cover both sides of the glass film 12, both sides of the glass film can be protected to prevent the glass film from being damaged. By setting the overlap amount x to 2 mm or more, the folded support film 11 and adhesive layer 13 can be prevented from being peeled off from the glass film 12. Moreover, it can prevent that the folded back support film 11 and the adhesion layer 13 wrinkle by making overlap amount x 20 mm or less.

  Moreover, it can prevent that the adhesion layer 13 of the side part area | region 14 is exposed by providing the folding | returning part 50. FIG. Therefore, when the glass film laminated body 10 is wound up in roll shape, it can prevent that the part of the glass film laminated body 10 adjacent to each other sticks, and can improve the handleability of the glass film laminated body 10. .

  Next, the glass film laminated body 1a with a pixel for color filters is demonstrated using FIG. The pixel-attached glass film laminate 1a for a color filter corresponds to an intermediate product when the color filter 1 is produced using the glass film laminate 10, and includes the glass film laminate 10 described above, A plurality of color pixels 2, 3, 4 and a black matrix 5 for color filters provided on the glass film 12 of the glass film laminate 10 are provided. Among these, each pixel 2, 3, 4 is covered with a protective layer 6, and a transparent electrode film 7 is formed on the protective layer 6. In this color filter-attached glass film laminate with a pixel 1a, the color filter 1 shown in FIG. 1 is obtained by peeling or cutting the support film 11 and the adhesive layer 13 from the glass film 12.

  In addition, when using the support film 11 with a small phase difference in the color filter for liquid crystal displays, the support film 11 does not necessarily need to be peeled off, and the color filter with the support film 11 still bonded may be used. Furthermore, in a display that does not use polarized light as a display principle, such as an EL display or an electronic paper, a color filter in which the support film 11 remains bonded regardless of the phase difference amount may be used. In this case, what is necessary is just to remove the support film 11 and the adhesion layer 13 in the side part area | region 14 containing the folding | returning part 50 by peeling, a cutting | disconnection, etc.

  Next, the material of each component will be described.

  Examples of the material used for the support film 11 include polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyethersulfone (PES), polyimide (PI), polyetheretherketone (PEEK), polycarbonate (PC), Polyethylene (PE), polypropylene (PP), polyphenylene sulfide (PPS), polyetherimide (PEI), cellulose triacetate (CTA), cyclic polyolefin (COP), polymethyl methacrylate (PMMA), polysulfone (PSF), polyamideimide ( PAI), synthetic resins such as nobornene resins and allyl ester resins. In particular, PET, PEN, and COP are suitable from the characteristics such as transparency and flexibility. Further, the thickness of the support film 11 is 3 μm or more and 200 μm or less, preferably 5 μm or more and 200 μm or less. This makes it possible to ensure the strength necessary for reinforcing the glass film 12 and to wind the glass film laminate 10 having the support film 11 into a roll.

  The material used for the glass film 12 is not particularly limited as long as it can be formed into a film shape, but soda lime glass and alkali-free glass generally used for display applications are preferable. Of these, alkali-free glass that is colorless and has high transparency, has a low coefficient of linear thermal expansion, and is difficult to deform is preferable. Moreover, it is preferable that the thickness of the glass film 12 is 5 micrometers or more and 300 micrometers or less. Accordingly, the glass film 12 can be stably manufactured, and can have a minimum strength in handling, and the glass film laminate 10 having the glass film 12 can be wound into a roll. .

  The material used for the adhesive layer 13 is not particularly limited as long as it has flexibility, but an acrylic or styrene resin material is preferable. Moreover, it is preferable that the thickness of the adhesion layer 13 is 5 micrometers or more and 200 micrometers or less. Thereby, it is possible to secure a sufficient adhesive force for adhering the support film 11 and the glass film 12 and to prevent a decrease in optical properties as the glass film laminate 10. For example, a decrease in transmittance, coloring, and an increase in retardation can be prevented.

  Next, the manufacturing apparatus (laminator) 20 of the glass film laminated body in this Embodiment is demonstrated using FIG.

  As shown in FIG. 4, the glass film laminate manufacturing apparatus 20 includes a support film supply unit 21 to which a roll of the support film 11 around which the belt-like continuous support film 11 is wound, and a belt-like continuous glass film 12. And a glass film supply unit 22 to which a roll of the glass film 12 around which is wound is attached. Among these, a cover sheet (release paper) 16 is affixed to an adhesive layer 13 provided on the support film 11 in a detachable manner, and the portions of the support film 11 that are adjacent to each other in the roll of the support film 11. Is prevented from sticking by the adhesive layer 13. Moreover, in the vicinity of the support film supply part 21, the peeling part 24 for peeling the cover sheet 16 from the support film 11 drawn out from the support film supply part 21, and the peeled cover sheet 16 are wound up and collected. And a collecting unit 25 for performing the above operation.

  On the downstream side of the support film supply unit 21 and the glass film supply unit 22 in the conveying direction, a lamination pressing unit 26 for laminating the support film 11 and the glass film 12 is provided. The glass film 12 is laminated and affixed to the support film 11 via the adhesive layer 13 by the lamination pressing portion 26.

  A peeling unit 60 for peeling the cover sheet (release paper) 53 provided on the glass film 12 is provided on the downstream side in the transport direction of the lamination pressing unit 26. The cover sheet 53 peeled off from the glass film 12 by the peeling portion 60 is taken up and collected by the collecting portion 61. The cover sheet 53 is for preventing the roller of the laminated pressing portion 26 from sticking to the adhesive layer 13 when the glass film 12 is laminated and attached to the support film 11.

  A molding guide 62 that folds the support film 11 and the adhesive layer 13 in the side region 14 is provided on the downstream side of the peeling unit 60 in the transport direction. The molding guide 62 guides the portions of the support film 11 of the glass film laminate 10 and the side region 14 of the adhesive layer 13 that are continuously conveyed so that the portions are gradually folded.

  FIG. 5 shows an example of the molding guide 62. The molding guide 62 has a pair of curved portions 62a that are arranged on both sides of the glass film laminate 10 that is continuously conveyed and is curved so as to be concave with respect to the support film 11, and each curved portion 62a is The curvature of the support film 11 gradually decreases from the carry-in port 62b toward the carry-out port 62c, and gradually approaches the glass film 12 from the carry-in port 62b toward the carry-out port 62c. Configured to have a shape.

  As shown in FIG. 6, the support film 11 carried into the molding guide 62 and the portion of the side region 14 of the adhesive layer 13 are gradually bent from the edge thereof by the curved portion 62a toward the carry-out portion 62c. When the process advances and reaches the carry-out part 62c of the molding guide 62, the folded part 50 having the form shown in FIG. 2 is obtained.

  On the downstream side of the molding guide 62 in the conveying direction, a folding pressing portion 63 that presses the folding portion 50 and joins the facing portions of the adhesive layer 13 to each other is provided.

  On the downstream side in the conveyance direction of the folding pressing portion 63, a laminated body winding portion 27 that winds the glass film laminated body 10 around a cylindrical core 28a is provided. In this laminate winding part 27, a laminate roll 28 in which the glass film laminate 10 is wound around the core 28a is formed.

  Next, the manufacturing method of the glass film laminated body by this Embodiment is demonstrated using FIG.

  First, a belt-like continuous support film 11 with an adhesive layer 13 and a belt-like continuous glass film 12 with a cover sheet 53 are prepared. That is, in the glass film laminate manufacturing apparatus 20, the roll of the support film 11 is attached to the support film supply unit 21, and the roll of the glass film 12 is attached to the glass film supply unit 22.

  Subsequently, the support film 11 with the adhesive layer 13 is fed out from the support film supply unit 21, and the glass film 12 with the cover sheet 53 is fed out from the glass film supply unit 22 and conveyed to the lamination pressing unit 26. At this time, the cover sheet 16 on the pressure-sensitive adhesive layer 13 fed out from the support film supply unit 21 is peeled off from the pressure-sensitive adhesive layer 13 by the peeling unit 24, wound up and collected by the collecting unit 25. In this way, the support film 11 with the adhesive layer 13 from which the cover sheet 16 has been peeled is conveyed to the laminated pressing portion 26.

  Next, in the laminated pressing portion 26, the glass film 12 is laminated and attached to the support film 11 via the adhesive layer 13. At this time, the cover sheet 53 is detachably attached to the adhesive layer 13 in the side region 14.

  Subsequently, the cover sheet 53 is peeled off from the glass film 12 and the pressure-sensitive adhesive layer 13 by the peeling portion 60, and taken up and collected by the collecting portion 61.

  Subsequently, the support film 11 and the adhesive layer 13 are folded back in each of the side regions 14 to form a folded portion 50. In this case, first, in the molding guide 62, the portions of the support film 11 and the side region 14 of the adhesive layer 13 are folded back. The folded adhesive layer 13 is attached to the opposing adhesive layer 13 and the glass film 12.

  Next, in the folded pressing portion 63, the folded portion is pressed, and the facing portions of the adhesive layer 13 are sufficiently joined. Thus, the glass film laminated body 10 shown in FIG. 2 is obtained.

  Then, the obtained glass film laminated body 10 is conveyed by the laminated body winding part 27, and is wound up by the core 28a. In this way, the laminate roll 28 is formed.

  When manufacturing the color filter 1 using the glass film laminated body 1 mentioned above, the glass film laminated body 10 is drawn | fed out from the laminated body roll 28, the photosensitive material for pixels is apply | coated on the glass film 12, and it dries. By repeating a series of steps of (pre-baking), exposure, development and curing (post-baking), the pixels 2, 3, 4 and black matrix 5 of each color are formed on the glass film 12, and the color filter 1 is obtained. Can do.

  As described above, according to the present embodiment, it is possible to prevent the adhesive layer 13 and the support film 11 from being folded back in each of the side regions 14 formed on both sides of the glass film 12 and exposing the adhesive layer 13. For this reason, when the glass film laminated body 10 is wound up in roll shape, it can prevent that the parts of the glass film laminated body 10 adjacent to each other stick. Moreover, by folding back the adhesive layer 13 and the support film 11, the adhesive layer 13 is not exposed on the outer side in the width direction (both ends) in the glass film laminate 10. Therefore, it can prevent that a glass film laminated body sticks to a conveying apparatus etc. when pinching the side part of the glass film laminated body 10 and conveying it during a manufacturing process. In addition, even if a force is applied to both sides of the glass film laminate 10 during the manufacturing process due to such conveyance, the force hardly affects the bonding portion between the adhesive layer 13 and the glass film 12, It is possible to prevent the folded adhesive layer 13 from being peeled off from the glass film 12.

  Moreover, according to this Embodiment, since it is not necessary to prepare another film etc. for preventing the adhesion layer 13 from being exposed, the cost of the glass film laminated body 10 can be reduced.

  In addition, since the folded support film 11 and the adhesive layer 13 cover both sides of the glass film 12, both sides of the glass film 12 can be protected and damage to the glass film 12 can be prevented.

  The folded portion 50 is attached to the glass film 12 and the adhesive layer 13 facing each other by the adhesive layer 13. Therefore, it can prevent that the folding | returning part 50 peels from the glass film 12 and the adhesion layer 13 which faced each other.

  Moreover, according to this Embodiment, the interface of the adhesion layer 13 and the glass film 12 can be covered with the folding | returning part 50, and it can prevent that the glass film 12 peels from the adhesion layer 13. FIG.

  Furthermore, according to this Embodiment, while being able to prevent the damage of the glass film 12 of the glass film laminated body 10 in which the multi-color pixel 2, 3, 4 for the color filter 1 was provided, the said glass film The handleability of the laminated body 10 can be improved. Thereby, the handleability of the glass film laminated body 10 at the time of color filter manufacture improves, and the manufacturing efficiency of the color filter 1 using the glass film laminated body 10 can be improved.

  In the first embodiment, as shown in FIG. 4, a cover sheet (release paper) 53 is provided on the glass film 12 in order to prevent the roller of the laminated pressing portion 26 from sticking to the adhesive layer 13. However, a release treatment may be performed on the roller of the laminated pressing portion 26. In this case, since the roller of the lamination | stacking press part 26 does not stick to the adhesion layer 13, the cover sheet (release paper) 53 becomes unnecessary. Therefore, like the manufacturing apparatus 20A shown in FIG. 7, the peeling unit 60 and the collection unit 61 can be omitted from the manufacturing apparatus 20 shown in FIG.

  (Second Embodiment) Next, referring to FIGS. 8 and 9, a method for producing a glass film laminate 10 in the second embodiment of the present invention will be described.

  In the second embodiment shown in FIGS. 8 and 9, the step of laminating and attaching the glass film to the support film and the step of folding the adhesive layer and the support film in the side region are performed separately. The main difference is that the other configuration is substantially the same as that of the first embodiment shown in FIGS. 8 and 9, the same parts as those in the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The glass film laminate manufacturing apparatus 20 shown in FIG. 8 includes a first laminator 40 and a second laminator 41.

  Among these, the 1st laminator 40 is the support film supply part 21, the glass film supply part 22, and the release film roll 42 to which the roll of the release film 30 around which the strip | belt-shaped continuous release film 30 was wound is attached. ,have. Among these, as shown in FIG. 9, the release film 30 is affixed on the adhesion layer 13 in each of the side area | region 14, and is formed so that the whole surface of the glass film 12 may be covered. In FIG. 9, as described above, the release film 30 is formed so as to cover the entire surface of the glass film 12, but the present invention is not limited to this, and the release film 30 is formed in the side region 14. The shape of the release film 30 may be arbitrary as long as it is possible to prevent the portions of the support films 11 adjacent to each other from sticking to each other when being stuck on the pressure-sensitive adhesive layer 13 and wound up in a roll shape. Can do. For example, the release film 30 may be formed so as to cover not only the entire glass film 12 but only both side portions of the glass film 12. Alternatively, the width of the release film 30 may be larger than the width of the glass film 12 and the width of the adhesive layer 13. Thereby, the edge part of the glass film 12 can be protected effectively. Further, even when the sticking between the release film 30 and the pressure-sensitive adhesive layer 13 occurs, the pressure-sensitive adhesive layer 13 can be prevented from protruding (exposed).

  A first laminated pressing unit 43 that laminates the support film 11, the glass film 12, and the release film 30 is provided on the downstream side in the conveyance direction of the support film supply unit 21, the glass film supply unit 22, and the release film roll 42. . The glass film 12 is laminated and attached to the support film 11 via the adhesive layer 13 by the first laminated pressing portion 43, and the release film 30 is attached to the adhesive layer 13 in each of the side regions 14. Thus, a laminated intermediate 31 shown in FIG. 9 is obtained.

  On the downstream side of the first lamination pressing part 43, a lamination intermediate winding part 44 for winding the lamination intermediate 31 around the core 45a is provided. In the laminated intermediate winding unit 44, a laminated intermediate roll 45 in which the laminated intermediate 31 is wound around the core 45a is formed.

  The second laminator 41 includes a laminated intermediate supply unit 46 to which a laminated intermediate roll 45 is attached, and a molding guide 62. Among these, in the vicinity of the laminated intermediate supply unit 46, a peeling unit 47 for peeling the release film 30 and a collection unit 48 for collecting the peeled release film 30 are provided.

  The molding guide 62 is provided on the downstream side in the transport direction of the laminated intermediate supply unit 46, and the support film 11 and the adhesive layer 13 are folded in each of the side regions 14 to form the folded portion 50. Thereby, the glass film laminated body 10 shown in FIG. 2 is obtained.

  On the downstream side of the molding guide 62 in the conveying direction, a folding pressing portion 63 that joins the facing portions of the adhesive layer 13 and a laminated body winding portion 27 that winds the glass film laminated body 10 around a cylindrical core 28a are provided. It has been.

  In this Embodiment, when manufacturing the glass film laminated body 10, first, the strip | belt-shaped continuous support film 11 with the adhesion layer 13, the strip | belt-shaped continuous glass film 12, and the strip | belt-shaped release film 30 are used. prepare. That is, in the 1st laminator 40, the roll of the support film 11 is attached to the support film supply part 21, the roll of the glass film 12 is attached to the glass film supply part 22, and the roll of the release film 30 is a release film supply part. 42 is attached.

  Subsequently, the support film 11 with the adhesive layer 13 is fed out from the support film supply unit 21, the glass film 12 is fed out from the glass film supply unit 22, and the release film 30 is fed out from the release film roll 42. Each is conveyed to the one stacking pressing portion 43. At this time, the cover sheet 16 on the adhesive layer 13 fed out from the support film supply unit 21 is peeled off from the adhesive layer 13 by the peeling unit 24, wound up by the collecting unit 25 and collected. In this way, the support film 11 with the adhesive layer 13 from which the cover sheet 16 has been peeled is conveyed to the first laminated pressing portion 43.

  Next, in the 1st lamination | stacking press part 43, the glass film 12 is laminated | stacked and affixed on the support film 11 via the adhesion layer 13, and a release film on the adhesion layer 13 in each of the side part area | region 14 next. 30 is pasted. In this way, the laminated intermediate 31 is obtained.

  Subsequently, the obtained laminated intermediate body 31 is wound around the core 45 a in the laminated intermediate winding unit 44 to form a laminated intermediate roll 45.

  Thereafter, in the second laminator 41, the wound laminated intermediate 31 is drawn out, the release film 30 is peeled off from the adhesive layer 13, and the support film 11 and the adhesive layer 13 are folded in each of the side regions 15. Thus, the folded portion 50 is formed.

  In this case, first, the laminated intermediate roll 45 is attached to the laminated intermediate supply unit 46. Subsequently, the laminated intermediate 31 is fed out from the laminated intermediate supply unit 46 while peeling the release film 30. At this time, the release film 30 of the laminated intermediate 31 fed from the laminated intermediate supply unit 46 is peeled off from the adhesive layer 13 by the peeling unit 47 and wound up and collected by the collecting unit 48.

  In this manner, the support film 11 and the glass film 12 with the adhesive layer 13 from which the release film 30 has been peeled are conveyed to the molding guide 62. Next, in the molding guide 62, the support film 11 and the adhesive layer 13 in each of the side regions 14 are folded to form the folded portion 50. At this time, a part (end portion) of the folded portion 50 is affixed on the glass film 12. Thus, the glass film laminated body 10 shown in FIG. 2 is obtained.

  The obtained glass film laminated body 10 is conveyed by the laminated body winding part 27, and is wound up by the core 28a. In this way, a laminate roll 28 is obtained.

  Thus, according to the present embodiment, first, in the first laminator 40, the glass film 12 is laminated and attached to the support film 11 via the adhesive layer 13, and then in the second laminator 41, the side portion In each region 14, the support film 11 and the adhesive layer 13 are folded back. In this case, the first laminator 40 may be aligned with the support film 11 and the glass film 12, and the second laminator 41 adjusts the amount of folding of the support film 11 and the adhesive layer 13, that is, the curve of the molding guide 62. The position of the part 62a may be adjusted. Thus, the alignment of the support film 11 and the glass film 12 and the adjustment of the amount of folding of the support film 11 and the adhesive layer 13 can be easily performed, and the folded portion 50 can be formed with high accuracy. it can.

  (Third Embodiment) FIG. 10 shows a schematic configuration of a glass film laminate according to a third embodiment of the present invention. In this embodiment, the point which the folding | returning part 50 does not overlap with the glass film 12 mainly differs, and another structure is substantially the same as 1st Embodiment shown in FIG. In FIG. 10, the same parts as those of the first embodiment shown in FIG.

  As shown in FIG. 10, according to the present embodiment, a predetermined gap 81 is provided between the folded portion 50 and the glass film 12. The size (width) of the gap 81 is preferably 0.1 mm or greater and 5.0 mm or less. Thus, in the manufacturing apparatus 20, even when the maximum misalignment caused by the general alignment accuracy between the glass film 12 and the support film 11 and the adjustment accuracy of the folding amount by the molding guide 62 occurs, Generation | occurrence | production of foreign materials, such as a cullet (glass waste), by the side part of the glass film 12 and the edge part of the folding | returning part 50 contacting can be prevented.

  Moreover, since the part which the adhesion layer 13 is exposed in the side part area | region 14 can be kept to the minimum, when the glass film laminated body 10 is wound up in roll shape, the part of the glass film laminated body 10 adjacent to each other It can prevent sticking together. Further, the exposure mask is attached to the folded back support sheet at the time of exposure in the color filter manufacturing process, and at the time of development, the developer is accumulated in the region for forming the pixels 2, 3, 4 on the glass film 12. Can be prevented.

  In addition, the magnitude | size of the clearance gap 81 may be equal in each side part area | region 14, and may differ.

  When there is no gap 81 and the folded portion 50 does not overlap the glass film 12, that is, when the size of the gap 81 is just zero, cullet may occur as described above, but the adhesive layer in the side region 14 Since it can prevent that 13 is exposed, when the glass film laminated body 10 is wound up in roll shape, it can prevent that the parts of the glass film laminated body 10 adjacent to each other stick.

  Moreover, in the said 3rd Embodiment, although the width | variety of the adhesion layer 13 and the width | variety of the support film 11 were the same, as shown to Fig.11 (a), the width | variety of the adhesion layer 13 is made into the glass film 12. It may be larger than the width and smaller than the width of the support film 11. Then, as shown in FIG. 11 (b), only the support film 11 may be folded back in the side region 14, and the tip of the support film folded portion 51 may be bonded to the adhesive layer 13. In this case, the support film folding part 51 becomes the folding part 50.

  The embodiments of the present invention have been described in detail above. However, it should be understood that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. .

  (Example 1) When the glass film laminated body 10 obtained using the manufacturing method of the glass film laminated body by the 1st Embodiment of this invention is wound up, the part of the glass film laminated body 10 adjacent to each other It was confirmed whether each other was stuck. For manufacturing the glass film laminate, a manufacturing apparatus 20A shown in FIG. 7 was used.

  First, as the support film 11, a PET film with an adhesive layer having a thickness of 50 μm, a width of 280 mm, and a length of 10 m (Fuji Clear 50, manufactured by Lintec Corporation) was prepared. A cover sheet 16 is affixed to the adhesive layer 13 provided on the PET film so as to be peeled off. As the glass film 12, a thin glass plate (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 100 μm, a width of 250 mm, and a length of 10 m was prepared.

  Subsequently, the thin glass 12 was laminated and pasted on the adhesive layer 13 of the PET film 11 with a laminator. By arranging the thin glass 12 in the central part of the PET film 11, the width of the side region 14 was about 15 mm (= (280−250) / 2), respectively. Then, the support film 11 and the adhesion layer 13 were folded in each of the side part area | region 14, and the glass film laminated body 10 was obtained. A place 8.5 mm from the end of the support film 11 was used as a turning point. That is, the width at which the adhesive layers 13 are bonded to each other is set to 6.5 mm (= 15 to 8.5), and the amount of overlap between the folded support film 11 and the adhesive layer 13 and the thin glass 12 is 2 mm (= 8.5). -6.5). In addition, although the folded adhesive layer 13 has a portion to be attached to the side surface of the thin glass 12, the thickness of the thin glass 12 is larger than the folded length of the support film 11 and the adhesive layer 13. This is not necessary because it is extremely small.

  The glass film laminate 10 was wound around a core 28 a having a diameter of 6 inches to form a laminate roll 28.

  Next, the laminated body roll 28 was set in the unwinding part of the coating apparatus, and the glass film laminated body 10 was drawn out. At this time, it was confirmed that the glass film laminate 10 was smoothly drawn out. That is, in the laminated body roll 28, it has confirmed that the part of the glass film laminated body 10 adjacent to each other was not sticking.

  Further, it was confirmed that the folded support film 11 and adhesive layer 13 were not peeled off from the thin glass 12. Further, it was confirmed that the folded portion 50 was not wrinkled.

  A resist was applied by microgravure on the thin glass sheet 12 of the unrolled glass film laminate 10, and thereafter exposure and development were performed to obtain pixels 2, 3, 4 and a black matrix 5 for color filters.

  (Example 2) By the same method as in Example 1, the overlap amount of the folded support film 11 and adhesive layer 13 and the thin glass 12 was 20 mm to obtain a glass film laminate 10. In addition, the same material and manufacturing apparatus as Example 1 are used except the width of the PET film used as the support film 11 being 320 mm.

  By arranging the thin glass 12 in the center of the PET film 11, the width of the side region 14 was about 35 mm (= (320−250) / 2), respectively. Then, the support film 11 and the adhesion layer 13 were folded in each of the side part area | region 14, and the glass film laminated body 10 was obtained. A place 27.5 mm away from the end of the support film 11 was used as a turning point. That is, the width at which the adhesive layers 13 are bonded to each other is 7.5 mm (= 35-27.5), and the overlap amount of the folded support film 11 and adhesive layer 13 and the thin glass 12 is 20 mm (= 27.5). -7.5).

  And the formed laminated body roll 28 was set to the unwinding part of the coating apparatus, and the glass film laminated body 10 was drawn | fed out. At this time, it was confirmed that the glass film laminate 10 was smoothly drawn out. That is, in the laminated body roll 28, it has confirmed that the part of the glass film laminated body 10 adjacent to each other was not sticking. Further, it was confirmed that the folded support film 11 and adhesive layer 13 were not peeled off from the thin glass 12. Further, it was confirmed that the folded portion 50 was not wrinkled.

  (Example 3) When the glass film laminated body 10 obtained by using the method for producing a glass film laminated body according to the second embodiment of the present invention is wound up, portions of the glass film laminated body 10 adjacent to each other It was confirmed whether each other was stuck.

  As the release film 30, a release film (K1616, manufactured by Toyobo Co., Ltd.) having a thickness of 25 μm, a width of 300 mm, and a length of 10 m was prepared. In addition, the same material as Example 1 was used for the support film 11 and the glass film 12.

  Subsequently, the first laminator 40 laminates and attaches the thin glass 12 on the adhesive layer 13 of the PET film 11, and the release treatment surface is provided on the adhesive layer 13 in each of the side regions 14. A release film 30 was attached so as to be disposed on the side, and a laminated intermediate 31 was obtained. The produced laminated intermediate 31 was wound around a core 45 a having a diameter of 6 inches to form a laminated intermediate roll 45.

  Next, the laminated intermediate roll 45 was set on the unwinding portion of the second laminator 41, and the laminated intermediate 31 was fed out while peeling the release film 30. Then, the support film 11 and the adhesion layer 13 were folded in each of the side part area | region 14, and the glass film laminated body 10 was obtained. The width at which the adhesive layers 13 were bonded to each other was 6.5 mm, and the amount of overlap between the folded support film 11 and the adhesive layer 13 and the thin glass plate 12 was 2 mm.

  The glass film laminate 10 was wound around a core 28 a having a diameter of 6 inches to form a laminate roll 28.

  Next, the laminated body roll 28 was set in the unwinding part of the coating apparatus, and the glass film laminated body 10 was drawn out. At this time, it was confirmed that the glass film laminate 10 was smoothly drawn out. That is, in the laminated body roll 28, it has confirmed that the part of the glass film laminated body 10 adjacent to each other was not sticking. Further, it was confirmed that the folded support film 11 and adhesive layer 13 were not peeled off from the thin glass 12. Further, it was confirmed that the folded portion 50 was not wrinkled.

  Thereafter, in the same manner as in Example 1, color filter pixels 2, 3, and 4 were obtained.

  (Example 4) By the same method as in Example 1, the folded support film 11 and adhesive layer 13 were not stacked on the thin glass sheet 12 to obtain a glass film laminate 10 provided with a 2 mm gap 81. In addition, the same material as Example 1 was used for the support film and the glass film.

  A thin glass 12 was laminated and pasted on the adhesive layer 13 of the PET film 11. By arranging the thin glass 12 in the central part of the PET film 11, the width of the side region 14 was about 15 mm (= (280−250) / 2), respectively. Then, the support film 11 and the adhesion layer 13 were folded in each of the side part area | region 14, and the glass film laminated body 10 was obtained. A place 6.5 mm from the end of the support film 11 was used as a turning point. That is, the width at which the adhesive layers 13 are bonded to each other is 6.5 mm, and the folded support film 11 and the gap 81 between the adhesive layer 13 and the thin glass plate 12 are 2 mm (= 15− (6.5 × 2)). did.

  The glass film laminate 10 was wound around a core 28 a having a diameter of 6 inches to form a laminate roll 28.

  Next, the laminated body roll 28 was set in the unwinding part of the coating apparatus, and the glass film laminated body 10 was drawn out. At this time, it was confirmed that the glass film laminate 10 was smoothly drawn out. That is, in the laminated body roll 28, it has confirmed that the part of the glass film laminated body 10 adjacent to each other was not sticking. It was also confirmed that the adhesive layers 13 that were folded and joined were not peeled off.

  Thereafter, in the same manner as in Example 1, color filter pixels 2, 3, and 4 were obtained.

  (Comparative Example 1) A glass film laminate was produced in the same manner as in Example 1 except that the support film 11 and the adhesive layer 13 in the side region 14 were not folded back, and wound around a core 28a having a diameter of 6 inches. A laminate roll was formed. Although it tried to pay out the glass film laminated body by setting it in the unwinding part of the coating apparatus, the portions of the glass film laminated bodies adjacent to each other were stuck to each other by the adhesive layer 13, and the glass film laminated body could not be drawn out. .

  (Comparative Example 2) By the same method as in Example 1, the glass film laminate 10 was obtained by setting the amount of overlap between the folded support film 11 and adhesive layer 13 and the sheet glass 12 to 1 mm. In addition, the same material as Example 1 was used, and the place of 8 mm from the end of the support film 11 was made into the turning point.

  And the formed laminated body roll was set to the unwinding part of the coating apparatus, and the glass film laminated body was let out. At this time, it was confirmed that the glass film laminate 10 was smoothly drawn out. In the subsequent exposure / development processing for forming pixels for the color filter, since the bonding area between the thin glass 12 and the folded adhesive layer 13 is narrow, the adhesive force is weak, and the folded support film 11 and adhesive layer 13 Peeling from the glass film 12 occurred.

  (Comparative example 3) By the same method as Example 1, the support film 11 and the adhesion layer 13 which turned up were not piled up on the thin glass 12, but the glass film laminated body 10 which provided the 7-mm gap | interval 81 was obtained. In addition, the same material as Example 1 was used, and the place of 4 mm from the end of the support film 11 was made into the turning point.

  Then, the formed laminate roll was set in the unwinding part of the coating apparatus and tried to feed out the glass film laminate. However, the portions of the glass film laminate adjacent to each other were adhered to each other by the adhesive layer 13, and the glass film laminate I couldn't lift my body.

  In the above description, the example which applied the manufacturing method of the glass film laminated body and glass film laminated body by this invention to the color filter is shown. However, the present invention is not limited to this, and the glass film laminate and the glass film laminate according to the present invention are applied to a TFT substrate or electrode substrate, a display element substrate for organic EL, or a substrate such as a solar cell, which is a counter substrate for a color filter. It is also possible to apply this manufacturing method. Furthermore, the present invention can be applied to all existing glass products, for example, glass products used for architecture, furniture decoration, electronic devices, semiconductor devices, car body members, and the like.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Color filter 2 Red pixel 3 Green pixel 4 Blue pixel 5 Black matrix 6 Protective layer 7 Transparent electrode film 10 Glass film laminated body 11 Support film 12 Glass film 13 Adhesive layer 14 Side region 16 Cover sheet 20 Manufacture of glass film laminated body Device 20A Glass Film Laminate Manufacturing Device 21 Support Film Supply Unit 22 Glass Film Supply Unit 24 Peeling Unit 25 Recovery Unit 26 Pressing Unit 27 Laminate Winding Unit 28 Laminate Roll 28a Core 30 Release Film 31 Laminated Intermediate 40 1 laminator 41 2nd laminator 42 release film supply part 43 first pressing part 44 laminated intermediate winding part 45 laminated intermediate roll 45a core 46 laminated intermediate supply part 47 peeling part 48 collecting part 49 second pressing part 50 folding Part 51 Support film folding part 52 Adhesive layer folding part 53 Cover Sheet 60 Peeling part 61 Collection part 62 Molding guide 62a Bending part 62b Carrying-in part 62c Carrying-out part 63 Folding pressing part 81 Crevice

Claims (14)

A support film;
A glass film provided on the support film via an adhesive layer;
With
The glass film has a width smaller than the width of the support film and the width of the adhesive layer,
The glass film is arranged so that the support film and the adhesive layer protrude from both sides of the glass film, and on both sides of the glass film, side regions of the support film and the adhesive layer are formed,
A glass film laminate, wherein the support film in at least the side region is folded.   The glass film laminate according to claim 1, wherein the adhesive layer in the side region is also folded.   The glass film laminate according to claim 2, wherein a part of the folded support film and the adhesive layer overlaps the glass film.   The glass film laminate according to claim 3, wherein the overlapping amount of the support film and the adhesive layer and the glass film is 2 mm or more and 20 mm or less.   The glass film laminate according to claim 1, wherein a gap is left between the folded back support film and the glass film.   The glass film laminate according to claim 5, wherein the gap is 0.1 mm or greater and 5.0 mm or less.   The glass film laminate according to any one of claims 1 to 6, wherein the glass film has a thickness of 5 µm or more and 300 µm or less. A glass film laminate roll formed by winding up a glass film laminate,
The glass film laminate is
A support film;
A glass film provided on the support film via an adhesive layer;
With
The glass film has a width smaller than the width of the support film and the width of the adhesive layer,
The glass film is arranged so that the support film and the adhesive layer protrude from both sides of the glass film, and on both sides of the glass film, side regions of the support film and the adhesive layer are formed,
A glass film laminate roll, wherein at least the support film in the side region is folded. A glass film laminate having a support film, and a glass film provided on the support film via an adhesive layer;
A plurality of color pixels for a color filter provided on the glass film of the glass film laminate,
With
The glass film has a width smaller than the width of the support film and the width of the adhesive layer,
The glass film is arranged so that the support film and the adhesive layer protrude from both sides of the glass film, and on both sides of the glass film, side regions of the support film and the adhesive layer are formed,
A glass film laminate with a pixel for a color filter, wherein the support film in at least the side region is folded. Preparing a belt-like support film provided with an adhesive layer;
Preparing a band-shaped glass film having a width smaller than the width of the support film and the adhesive layer;
The glass film is laminated and pasted on the support film through the adhesive layer so that the support film and the adhesive layer protrude from both sides of the glass film, and on both sides of the glass film, the support film and the Forming a side region of the adhesive layer;
Folding the support film in the side region and joining the opposing adhesive layer;
A method for producing a glass film laminate comprising:   The method for producing a glass film laminate according to claim 10, wherein the pressure-sensitive adhesive layer is folded back together with the support film, and the pressure-sensitive adhesive layers facing each other are joined together. A step of preparing a belt-like support film provided with an adhesive layer on one surface, a belt-like glass film having a width smaller than the width of the support film and the pressure-sensitive adhesive layer, and a belt-like release film; ,
The glass film is disposed so that the support film and the adhesive layer protrude from both sides of the glass film, and side regions of the support film and the adhesive layer are formed on both sides of the glass film, At the same time as laminating and attaching the glass film to the support film via the adhesive layer, the step of attaching the release film on the adhesive layer in the side region to obtain a laminated intermediate;
Winding up the laminated intermediate;
Unwinding the laminated intermediate that has been wound up, peeling off the release film from the adhesive layer, folding back the support film in the side region, and joining the opposing adhesive layer;
A method for producing a glass film laminate comprising:   The method for producing a glass film laminate according to claim 12, wherein the pressure-sensitive adhesive layer is folded back together with the support film, and the pressure-sensitive adhesive layers facing each other are bonded to each other.   14. The glass film laminate according to claim 12, wherein in the step of obtaining the laminated intermediate, the release film is affixed on the adhesive layer so as to cover the entire glass film. Production method.

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