JP2013111949A - Method for manufacturing film with hard coat layer and film with glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve punching processability while retaining high hardness to easily suppress the occurrence of breakage of a hard coat layer.SOLUTION: A method for manufacturing a film with a hard coat layer to be pasted on the glass surface includes the steps of: forming a half hardened hard coat layer on one surface of a substrate film pasted with a delamination film on another surface via a transparent adhesive layer for optics; punching the transparent adhesive layer for optics, the substrate film and the half hardened hard coat layer with leaving the delamination film and matching them with the shape of the glass surface; and carrying out post cure after punching processing to harden the half hardened hard coat layer to have a pencil hardness of 2H or more.

Description

  The present invention relates to a method for producing a film with a hard coat layer and a method for producing a film with glass, and is particularly suitably used for a portable multifunction terminal equipped with a touch panel.

  The scattering prevention film is attached to the glass surface in order to prevent the glass from scattering when the sensor glass or the liquid crystal display glass of the touch panel of the multifunction terminal is damaged. Recently, the case where a hard coat layer-attached anti-scattering film (hereinafter simply referred to as an anti-scattering film) is affixed to the glass surface is the mainstream. This anti-scattering film is punched in accordance with the shape of the glass surface in order to stick to the glass surface.

  However, the hard coat layer that is attached to the anti-scattering film has high hardness and lacks flexibility and toughness. Therefore, when punching, edges are likely to appear on the punched surface, and cracks are likely to occur near the punched surface. Therefore, workability was a big problem.

  Accordingly, a scattering prevention film has been proposed in which the thickness of the hard coat layer is optimized to maintain the hardness of the pencil hardness H or higher and the punching suitability is improved (Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-168652

  However, in Patent Document 1, since the hard coat layer is pre-cured and then punched, it is not possible to sufficiently cover the flexibility and toughness only by optimizing the thickness of the hard coat layer, and cracks, etc. It still tends to occur and there is still room for improvement.

  An object of the present invention is to solve the above-described problems of the prior art, improve the punching workability while maintaining high hardness, and easily suppress the occurrence of cracks in the hard coat layer. It is providing the manufacturing method of the film with a coating layer, and the manufacturing method of a film with a glass.

According to one aspect of the invention,
A method for producing a film with a hard coat layer to be attached to a glass surface,
Forming a semi-cured hard coat layer on the other surface of the base film having a release film attached to one surface via an optical transparent adhesive layer;
A step of punching the transparent adhesive layer for optics, the base film, and the semi-cured hard coat layer according to the shape of the glass surface, leaving the release film;
A method for producing a film with a hard coat layer is provided, which includes a step of curing the semi-cured hard coat layer after punching and after-curing so that the pencil hardness is 2H or higher.

  Preferably, in the step of forming the hard coat layer, the hard coat layer is in a semi-cured state of 30% to 60%.

  Preferably, in the after-curing step, the hard coat layer is cured to 100%.

  Moreover, Preferably the said film with a hard-coat layer is a scattering prevention film.

Preferably, the film with a hard coat layer is
A frame-shaped printed layer on one surface of the substrate film, the optical transparent adhesive layer covering the printed layer, the release film attached via the optical transparent adhesive layer, and the other surface of the substrate film It is a printed film for touch panels which has a hard-coat layer.

Preferably, the film with a hard coat layer is
They are a frame-shaped printing layer on one surface of a base film, a slightly adhesive film as the release film attached to the printing layer, and a printing film for a touch panel having the hard coat layer on the other surface of the base film.

Preferably, the step of peeling the release film from the film with a hard coat layer obtained by the method for producing a film with a hard coat layer described above,
A step of attaching the glass to the film with a hard coat layer from which the release film has been peeled, through the transparent adhesive layer for optics exposed by peeling of the release film.

Preferably, a step of laminating a peelable carrier film to the hard coat layer of the film with a hard coat layer obtained by the method for producing a film with a hard coat layer described above,
Peeling the release film from the film with a hard coat layer to which the carrier film is bonded,
A step of bonding the glass to the film with a hard coat layer from which the release film has been peeled, through the transparent adhesive layer for optics exposed by peeling of the release film.

  According to the present invention, it is possible to improve the punching workability while maintaining high hardness and easily suppress the occurrence of cracks in the hard coat layer.

It is explanatory drawing which shows the manufacturing process of the scattering prevention film with glass in the 1st Embodiment of this invention. It is explanatory drawing which shows the manufacturing process of the scattering prevention film with glass in the 2nd Embodiment of this invention. It is explanatory drawing which shows the manufacturing process of the scattering prevention film with glass in the 3rd Embodiment of this invention. It is explanatory drawing of the manufacturing apparatus which shows the line of the scattering prevention film in the 1st Embodiment of this invention. It is explanatory drawing of the manufacturing apparatus which shows the line of the scattering prevention sheet | seat with glass in the 1st Embodiment of this invention. It is explanatory drawing which shows the liquid crystal display panel with a film in one embodiment of this invention.

<First Embodiment>
The film with a hard coat layer of the present invention is mainly a scattering prevention film. Below, 1st Embodiment which concerns on the manufacturing method of this scattering prevention film is described. In this manufacturing method, the hard coat layer of the anti-scattering film is not pre-cured before the punching process, but is cured after the punching process (hereinafter sometimes referred to as a pre-curing process). There is a feature.

  As described above, the hard coat layer has high hardness but lacks flexibility and toughness. For this reason, if the hard coat layer is punched after pre-curing, cracking is likely to occur. Therefore, in one aspect of the present invention, as shown in FIG. 1, a step of attaching a release film 11 to one surface of a substrate film 15 via an optical transparent adhesive layer 14 (FIG. 1A), A step of forming a semi-cured hard coat layer 12 on the other surface of the material film 15 (FIG. 1 (b)), the optical transparent adhesive layer 14, the base film 15 and the semi-cured hard coat layer; 12 is a process of forming a processed film 21 on the release film 11 by performing a punching process in accordance with the shape of a glass surface such as a cover glass while leaving the release film 11 (FIG. 1C), A step of curing the semi-cured hard coat layer 12 and after-curing so that the pencil hardness is 2H or more to form the anti-scattering film 22 having the hard coat layer 13 completely cured (FIG. 1). d)), it is to include.

  In addition to the above-described steps, in addition to the above steps, a step of attaching a peelable carrier film 26 onto the hard coat layer 13 of the anti-scattering film 22 (FIG. 1 (e)) and the carrier The release film 11 is peeled from the scattering prevention film 22 to which the film 26 has been bonded, and the peeled prevention film 22 is covered with the optical transparent adhesive layer 14 exposed by peeling of the peeling film 11. The step of bonding the glass 17 and (FIG. 1 (f)) are necessary.

  Here, the uncured film shown in FIG. 1B is the unprocessed film 20, the unprocessed film 20 plus the release film 11 is the unprocessed film body, and after the punching shown in FIG. 1C. The processed film 21 is the processed film 21, the processed film 21 is added with the release film 11, the processed film body 41, and the aftercured film shown in FIG. 1 (d) is the anti-scattering film 22. 11 is referred to as an anti-scattering film body 42. Moreover, the film shown in FIG.1 (e) which added the carrier film to the scattering prevention film body 42 is the carrier film body 43, and the cover glass 17 is bonded to the carrier film body 43 from which the release film 11 has been peeled off (FIG. 1). The film shown in f) is called an anti-scattering film body with glass.

  As described above, according to one aspect of the present invention, since the hard coat layer is punched in a semi-cured state, it can cover flexibility and toughness during the punching process, and the hard coat layer can be easily punched. Generation | occurrence | production of the crack of a hard-coat layer can be suppressed effectively. In addition, since the after-curing is performed after the punching process, the hardness of the hard coat layer can be easily set to 2H or more or 3H or more of the pencil hardness without considering workability.

  In addition, according to one embodiment of the present invention, the release film becomes a carrier for the anti-scattering film until the glass is attached, and the carrier film becomes the carrier for the anti-scattering film with glass after the glass is attached. Can be manufactured. Therefore, unlike single wafer processing, mass production becomes possible.

  Hereinafter, each film material and each process will be described in order.

The release film 11 is a film for maintaining mechanical strength, and is peeled and removed later. Therefore, the material is not particularly limited, and transparency is not required. Therefore, as the release film 3, various commercially available plastic sheets and films can be used, and a polyethylene terephthalate (PET) film is particularly preferable.

  The optical transparent adhesive layer 14 is not particularly limited as long as it is gel-like and has transparency, and for example, an acrylic adhesive, a polyurethane adhesive, a polyester adhesive, a rubber adhesive, a silicone adhesive, and the like. Can be used. Among these, acrylic pressure-sensitive adhesives are particularly preferable because of easy control of adhesive strength and shear storage elastic modulus. The thickness of the optical transparent adhesive layer 14 is preferably 10 μm or more and 50 μm or less, for example.

  As the base film 15, various transparent plastic sheets and films can be used. Specific examples of the base film include optical polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN), and the like. Among these, PET is preferable because it is inexpensive and excellent in physical properties. The thickness of the base film can be, for example, 50 μm or more and 125 μm or less.

  The semi-hardened hard coat layer 12 is formed from a liquid curable resin composition. This liquid curable resin composition is a coating liquid comprising a hard coat agent. As the hard coating agent, a thermosetting hard coating agent such as a transparent silicone type or melamine type, or an acrylic photosensitive hard coating agent is used. The photosensitive hard coat agent is cured immediately by irradiation with light such as ultraviolet rays, so that a hard film is formed. Therefore, the processing speed is fast, and it has excellent performance such as scratch resistance. It is particularly preferable because it is inexpensive. The coating liquid for hard coat is a solution obtained by diluting a hard coat agent made of a curable resin composition with a solvent. The application conditions are conventionally known conditions. The coating film formed by coating is dried as necessary, and then irradiated with heat or ultraviolet light to be in a semi-cured state. The semi-cured hard coat layer 12 is preferably cured to 30% or more and 60% or less. This is because if it is less than 30%, it becomes close to a liquid and cannot be cut, and if it exceeds 60%, the hardness increases and cannot be cut.

  The punching process is a half punching process in which the release film 11 is left and the optical transparent adhesive layer 14, the base film 15, and the semi-cured hard coat layer 12 are punched into a predetermined pattern. The predetermined pattern is, for example, a shape that matches the shape of the single-piece cover glass 17 serving as an adherend. The half-hardened hard coat layer 12A that has been half-punched is further cured by irradiation with heat or ultraviolet rays. At this time, it is preferable to cure to 100%. The hard coat layer 13 formed by this curing needs to have a pencil hardness of 2H or more, preferably 3H or more. Moreover, the thickness of the hard-coat layer 13 can be 6 micrometers or more and 15 micrometers or less, for example.

  The carrier film 26 may be a variety of commercially available plastic sheets and films, like the release film 11, but a polyethylene terephthalate (PET) film is particularly preferable.

(manufacturing device)
The production line of this embodiment will be described with reference to FIGS. This production line is composed of a first half portion scattering prevention film production line shown in FIG. 4 and a second half portion scattering prevention film-attached cover glass production line shown in FIG. The release film 11 handled here is not a square sheet, but a long film wound in a roll. The first half line and the second half line may be provided continuously or discontinuously. In this embodiment, the case of discontinuity is illustrated.

  In the scattering prevention film production line shown in FIG. 4, the drum 10 in which the unprocessed film 40 is wound in a roll shape is disposed at the starting point of the production line. First, a plurality of rollers 25 for feeding out the unprocessed film 40 are disposed from the upstream side to the downstream side of the production line. Next, a single press machine for punching the optical transparent adhesive layer 14, the base film 15, and the hard coat layer 12 into a predetermined pattern while leaving the lowermost release film 11 of the unprocessed film 40 on the downstream side of the roller 25. 23 is disposed. Here, as the single press machine 23, a single press machine that performs one-time (one-time) pressure molding in one reciprocation is adopted. The predetermined pattern is a pattern that matches the shape of a single-piece cover glass described later. Further, an ultraviolet irradiating device 24 for irradiating ultraviolet rays onto the semi-cured hard coat layer 12A, which has been punched into a predetermined pattern by the cutter 8 of the single press machine 23, is disposed. The semi-hardened hard coat layer 12A punched out by the ultraviolet irradiation device 24 becomes a hard coat layer 13 having a predetermined pattern having high pencil hardness. It is preferable that the optical transparent pressure-sensitive adhesive is a thermosetting type so that the optical transparent pressure-sensitive adhesive layer 14 is not cured together when the ultraviolet rays are irradiated.

  Unlike the punching speed in the single press machine 23 and the curing speed in the ultraviolet irradiation device 24, the curing speed is slower than the punching speed. For this reason, in the illustrated example, a loop forming unit 18 is provided between the single press machine 23 and the ultraviolet irradiation device 24 to reduce the conveyance speed. The loop forming unit 18 down-controls the conveyance speed of the unprocessed film 40 that is sent to the ultraviolet irradiation device 24.

  A tape-shaped anti-scattering film body (intermediate) in which a plurality of rollers 25 are disposed on the downstream side of the ultraviolet irradiation device 24 and a predetermined pattern of anti-scattering film 22 is formed at the end point of the downstream line of the plurality of rollers 25. Article 19) A drum 19 for winding the roll 42 in a roll shape is disposed.

  In the glass-coated shatterproof sheet production line shown in FIG. 5, the drum 19 around which the carrier film body 43 is wound in a roll shape is disposed at the starting point of the production line. The carrier film body 43 is obtained by attaching the carrier film 26 to the hard coat layer 13 of the anti-scattering film body 42 manufactured by the above-described line. A plurality of rollers 25 that first feed out the carrier film body 43 are arranged from the upstream side to the downstream side of the production line. Next, a laminating machine 27 is disposed to bond the cover glass 17 to the scattering prevention film 22 by thermocompression bonding while peeling the release film 11 of the carrier film body 43.

  Further, on the downstream side of the laminating machine 27, a guide 28 for supporting the glass anti-scattering film body 44 whose weight is increased by bonding the cover glass 17 is disposed. And the cutting machine 29 which cuts the glass-attached scattering prevention film body 44 into a sheet-like size of the cover glass 17 is arranged, and the end point of the line on the downstream side of the cutting machine 29 is the prevention of scattering with glass. A storage box 30 for storing the sheet (product) 45 is disposed.

(Production method)
4 and 5 will be described with reference to FIG. The film sent from the drum 10 to the line is a pre-processed film 40 having the semi-cured hard coat layer 12 as the uppermost layer (FIGS. 1A and 1B). As described above, the semi-hardened hard coat layer 12 is formed by applying a hard coat coating solution to form a coating film and semi-curing the coating film. The hard coat coating liquid is, for example, a UV curable resin added with a leveling agent and diluted with methyl ether. The degree of cure of the semi-cured hard coat layer 12 is 30% or more and 60% or less. If it is less than 30%, it is too soft to make punching difficult, and if it exceeds 60%, the hardness becomes 2H or more, making punching difficult, and cracking cannot be suppressed.

The pre-processed film 40 on which the semi-cured hard coat layer 12 is formed is left in the single press 23, leaving the release film 11 in a semi-cured hard coat layer 12, a base film 15, and an optical transparent adhesive layer 14. Is punched in accordance with the shape of the cover glass surface (reference numeral 12A in FIG. 1C). That is, the gel-like optical transparent adhesive layer 14, the base film 15, and the semi-cured hard coat layer 12 are collectively punched. At the time of punching, the optical transparent adhesive layer 14 has a problem of floating, but this can be solved by defining the thickness of the optical transparent adhesive layer 14. Moreover, since the base film 15 has a lower hardness than the hard coat layer 13, there is no problem in the punching process. The semi-hardened hard coat layer 12A can be easily punched because of its low hardness. Therefore, there is no problem even if the optical transparent adhesive layer 14, the base film 15, and the hard coat layer 12 in a semi-cured state are collectively punched. By this punching process, a large number of processed films 21 can be taken on the release film 11.

  After the punching process, the semi-cured hard coat layer 12A, which has been punched by the ultraviolet irradiation device 24, is irradiated with ultraviolet rays and aftercured, the punched half-cured hard coat layer 12A is 100% hardened. Layer 13 is formed. Thereby, the scattering prevention film body 42 which has the hard-coat layer 13 which has high pencil hardness 2H or more is formed (FIG.1 (d)).

  As described above, the hard coat layer 13 is after-cured after being punched, and since it is in a semi-cured state at the time of punching, the flexibility and toughness of the hard coat layer can be covered, and the hard coat layer can be easily punched. And the occurrence of cracks in the hard coat layer 13 can be effectively suppressed.

  The above-mentioned anti-scattering film body 42 obtained by after-curing is obtained by pasting the carrier film 26 on the hard coat layer 13 before sending it to the latter production line shown in FIG. (FIG. 1 (e)). Here, the reason why the carrier film 26 is bonded to the anti-scattering film 22 in addition to the release film 11 is to make the carrier film 26 a carrier for the anti-scattering film 22 instead of the release film 11 after the next step. . As a result, roll-to-roll can also be executed in this line. The obtained carrier film body 43 is supplied on the line shown in FIG.

  After supplying the line, the release film 11 is peeled from the carrier film body 43, and the cover glass 17 is attached to the scattering prevention film 22 through the optical transparent adhesive layer 14 exposed by peeling of the release film 11 (FIG. 1 ( f)). The glass-attached anti-scattering film body 44 is cut into a sheet by the cutting machine 29 and then stored in the storage box 30 as a glass-added anti-scattering film 45. The anti-scattering sheet 45 with glass attached with the carrier film 26 stored in the storage box 30 is peeled off to form a cover glass product with anti-scattering film. Thereby, the cover glass with a scattering prevention film with few hard coat layer cracks is obtained.

(Effect of embodiment)
According to the method for manufacturing the anti-scattering film of the present embodiment, the hard coat layer 13 is not cured after being cured and hardened, but after the punching is performed, it is cured after curing. Therefore, it is possible to cover the lack of flexibility and toughness of the hard coat layer at the time of punching, and the occurrence of defects such as edges appearing on the hard coat layer punched surface or cracks near the hard coat layer punched surface Can be suppressed, and the punching processability can be greatly improved. Moreover, the pencil hardness of the hard coat layer 13 can be maintained at 2H or higher, or 3h or higher by 100% curing after-curing.

In the present embodiment, after the scattering prevention film body 42 is obtained, the carrier film 26 is attached to the surface of the hard coat layer 13 opposite to the release film 11, so the cover glass 17 is attached. Therefore, even if the peeling film 11 is peeled off, the carrier film 26 exists as a carrier for the scattering prevention film 22. Therefore, each process can be processed continuously as long as the carrier film body 43 can be continuously fed. Here, it is preferable that at least the punching process, the after-curing process, the pasting process, and the cutting process are continuously performed as each process. The continuous treatment can process a cover glass with a scattering prevention film at a high speed and in a large amount as compared with a single wafer treatment or a batch treatment. The cover glass 17 to be pasted on the anti-scattering film 22 is not a large glass to be cut later, but is already cut sheet glass. Although it is usual to manufacture, if the said process is performed continuously, paying out the roll-form pre-processing film 40, production efficiency can be improved significantly.

  The present invention is not limited to the embodiments described above, and many variations are possible by those having ordinary knowledge in the art within the technical idea of the present invention.

  For example, as in the embodiment, if the carrier film body 43 that is a supply film is a roll-like film that can be continuously supplied, continuous pasting is possible. However, the carrier film body 43 has a single anti-scattering film. If it is the formed sheet-fed sheet form, sheet | seat sticking becomes possible. Furthermore, badge attachment is possible if it is the film form which formed the some scattering prevention film. In the single wafer sticking or batch sticking, in FIG. 4, the loop forming unit 18 is abolished, and the half punched film body 41 formed by punching with the single press machine 23 is once wound into a roll shape. Then, the wound half-blanked film body 41 is sent again to the ultraviolet irradiation device 24 to cure the punched and semi-cured hard coat layer 12A, and then a cutting machine is provided downstream of the ultraviolet irradiation device 24. Install and cut into sheets with this cutting machine.

  In FIG. 5, when it is necessary to eliminate the difference in speed between the laminating machine 27 and the cutting machine 29, a loop forming portion is provided between the laminating machine 27 and the cutting machine 29 to prevent scattering with glass. The conveyance speed of the film body 44 may be adjusted.

  Further, in the first embodiment described above, the press machine is the single press machine 23 that performs one-time (one-time) pressure molding by one reciprocation, but instead, multiple occurrences (multiple times) by one rotation. It is also possible to use a rotary press machine that continuously performs the pressure forming of the above. When using a rotary press machine, it is possible to further suppress the occurrence of defects such as edges appearing on the punched surface or cracking near the punched surface during punching, compared to single press machines. It can be greatly improved.

(Second Embodiment)
In the second embodiment, a pre-curing processing technique for a hard coat layer is applied to a printed film for a touch panel. That is, in the first embodiment, the film to be subjected to the curing pre-cutting technique is the scattering prevention film 22 with a hard coat layer, but in the present embodiment, the touch-panel print film 22A with a hard coat layer is used. It is said. As shown in FIG. 2, the touch panel print film has a hard coat layer 12 formed on one surface of the base film 15 and a frame-shaped print layer 9 formed on the other surface so as to cover the print layer 9. Further, an optical transparent adhesive layer 14 is formed (FIGS. 2A and 2B). In this case, the thickness of the base film is preferably 38 μm or more and 250 μm or less, and the thickness of the optical transparent adhesive layer is preferably 25 μm or more and 175 μm or less. Other points are the same as in the first embodiment. The after-curing technique can be applied to the hard coat layer of such a touch panel print film. According to this, also in the touch panel print film 22A, when the hard coat layer 13 is after-cured after the punching process, when the semi-cured hard coat layer 12 is punched, the semi-cured hard coat layer 12 Since flexibility and toughness can be covered, the workability of the semi-cured hard coat layer 12 is improved, and the occurrence of cracks in the hard coat layer 13 can be effectively suppressed.

(Third embodiment)
In the third embodiment, a pre-curing technique for curing a hard coat layer is applied to the deformed touch panel print film 22B. That is, as shown in FIG. 3, the modified touch panel print film 22 </ b> B refers to a film in which the optical transparent adhesive layer 14 is not formed in the second embodiment shown in FIG. 2. In this case, since there is no adhesive layer on the modified touch panel print film 22B side, the carrier carrying the deformed touch panel print film 22B is replaced with the slightly adhesive film 11B having an adhesive layer instead of the release film 11 having no adhesive layer. (FIG. 1B to FIG. 1E). The thickness of the slightly adhesive film 11B is 50 μm or more and 100 μm or less. Other points are the same as in the first embodiment. A curing pre-cutting technique can be applied to the hard coat layer 13 in such a deformed touch panel print film 22B. According to this, even in the deformed touch panel print film 22B, when the hard coat layer 13 is after-cured after it is punched, the flexibility and toughness of the semi-cured hard coat layer 12 can be covered during the punching process. Moreover, the punching processability of the semi-cured hard coat layer 12 is improved, and the occurrence of cracks in the hard coat layer 13 can be effectively suppressed.

  FIG. 6 shows an application example of the anti-scattering film 22 or the touch-panel printing films 22A and 22B obtained by the embodiment of the present invention to the touch panel 31 or the liquid crystal display panel 32, and further to a multifunction terminal. 6 (a) and 6 (b), the cover glass with film obtained by the above-described method for producing the cover glass with anti-scattering film and the printed film for touch panel is attached to the touch panel (sensor glass) 31. When attached, a touchscreen with a printed film having an anti-scattering film or hard coat layer with few hard coat layer cracks is obtained. When this is further affixed to a liquid crystal display (LCD) panel 32, a scattering prevention film or a liquid crystal panel with a printing film with few hard coat layer cracks is obtained. And if this is attached to a multifunctional form terminal, the scattering prevention film with few hard-coat layer cracks or the multifunctional terminal with a printing film will be obtained.

[Appendix]
Hereinafter, preferred embodiments of the present invention will be additionally described.

According to one aspect of the present invention, the step of peeling the release film from the anti-scattering film obtained by the method for producing an anti-scattering film;
A method of manufacturing a cover glass with a scattering prevention film, comprising: attaching the cover glass to the scattering prevention film from which the peeling film has been peeled, through the transparent adhesive layer for optics exposed by peeling of the peeling film. Provided.

  Moreover, according to the other aspect of this invention, the touch panel with a scattering prevention film which affixed the cover glass with a scattering prevention film obtained with the manufacturing method of the cover glass with a scattering prevention film mentioned above on the touch panel is provided.

  Moreover, according to another aspect of the present invention, there is provided a liquid crystal panel with an anti-scattering film in which the cover glass with an anti-scattering film obtained by the above-described method for producing a cover glass with an anti-scattering film is attached to a liquid crystal panel. .

Moreover, according to another aspect of this invention, it replaces with the said scattering prevention film, and uses it as a touchscreen printing film, The manufacturing method of the cover glass with the printing film for touchscreens, the touchscreen with the printing film for touchscreens, touchscreen printing A liquid crystal panel with a film is provided.

DESCRIPTION OF SYMBOLS 11 Release film 12 Semi-hardened hard coat layer 12A Semi-hardened hard coat layer 13 that has been punched 13 Hard coat layer 14 Transparent optical adhesive layer 15 Base film 16 Hard coat film 17 Cover glass 18 Loop forming part 22 Spattering Prevention film 22A Touch panel printing film 22B Deformation touch panel printing film 23 Single press 24 UV irradiation device 26 Carrier film 28 Guide 31 Touch panel 32 Liquid crystal display (LCD) panel 40 Pre-processing film 41 Half punching film 42 Spattering prevention film body 43 Carrier film body 44 Anti-scattering film body 45 with glass Anti-scattering sheet with glass

Claims (8)

A method for producing a film with a hard coat layer to be attached to a glass surface,
Forming a semi-cured hard coat layer on the other surface of the base film having a release film attached to one surface via an optical transparent adhesive layer;
A step of punching the transparent adhesive layer for optics, the base film, and the semi-cured hard coat layer according to the shape of the glass surface, leaving the release film;
A process for producing a film with a hard coat layer, comprising: a step of curing the semi-cured hard coat layer and performing after-curing so that the pencil hardness becomes 2H or higher after the punching process. In the manufacturing method of the film with a hard-coat layer of Claim 1,
In the step of forming the hard coat layer, a method for producing a film with a hard coat layer, wherein the hard coat layer is brought into a semi-cured state of 30% to 60%. In the manufacturing method of the film with a hard-coat layer of Claim 1,
In the after-curing step, the method for producing a film with a hard coat layer, wherein the hard coat layer is cured to 100%.   The method for producing a film with a hard coat layer according to claim 1, wherein the film with a hard coat layer is a scattering prevention film. The film with a hard coat layer,
A frame-shaped printed layer on one surface of the substrate film, the optical transparent adhesive layer covering the printed layer, the release film attached via the optical transparent adhesive layer, and the other surface of the substrate film It is a printed film for touchscreens which has a hard-coat layer, The manufacturing method of the film with a hard-coat layer of Claim 1. The film with a hard coat layer,
A frame-shaped print layer on one surface of a substrate film, a slightly adhesive film as the release film attached to the print layer, and a print film for a touch panel having the hard coat layer on the other surface of the substrate film. Item 2. A method for producing a film with a hard coat layer according to Item 1. A step of peeling the release film from the film with a hard coat layer obtained by the method for producing a film with a hard coat layer according to claim 1;
A method for producing a film with glass, comprising: a step of attaching the glass to the film with a hard coat layer from which the release film has been peeled, through the transparent adhesive layer for optics exposed by peeling of the release film. A step of bonding a peelable carrier film to the hard coat layer of the film with a hard coat layer obtained by the method for producing a film with a hard coat layer according to claim 1;
Peeling the release film from the film with a hard coat layer to which the carrier film is bonded,
A method for producing a glass-coated film, comprising: bonding the glass to the film with a hard coat layer from which the release film has been peeled, through the transparent adhesive layer for optics exposed by peeling of the release film.

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