TWI520847B - Method for manufacturing solid structure glass with adhesive film - Google Patents

Description

Stereo glass film processing method

This case relates to a method for manufacturing a glass film, and more particularly to a method for manufacturing a three-dimensional glass film.

It is generally desirable to form a pattern or pattern on the surface of the glass by additionally attaching a film having a pattern or pattern, and generally adhering the film to the surface of the glass in a manner that relies on human manipulation. However, this method is prone to incomplete or uneven placement. For example, in the process of pasting, the position or angle of the film placed on the glass is inaccurate, so that the lately pasted portion cannot completely cover the glass, or the gas is not completely discharged during the pasting process. There is a bubble between the film and the glass, which causes unevenness.

In addition, this way of directly bonding the film to the glass is less applicable to the non-flat glass. In detail, in the transition between different planes of the three-dimensional glass, the film may be incompletely attached, or the excess film must be adhered to each other and the like. Even if a ductile film can be used to slightly improve such conditions, on the other hand, the film cannot be uniformly applied to the stereoscopic glass, and the pattern or pattern on the film is deformed.

The invention discloses a method for manufacturing a three-dimensional glass film, comprising the steps of: providing a film having a body layer and an adhesive layer; placing a stereo glass and a film into a hot pressing mold, and setting the adhesive layer corresponding to the stereo glass Providing at least one of a predetermined temperature and a predetermined pressure to the film to pre-form the film; and hot pressing the mold to press the pre-formed film and the stereoscopic glass to adhere the film to the stereoscopic glass.

1, 1a, 1b‧‧‧ film

11, 11a, 11b‧‧‧ body layer

111b, 131b, S‧‧‧ surface

12a, 12b‧‧‧ functional layer

13b‧‧‧ release layer

14b‧‧‧solidified layer

2, 2a, 2b‧‧‧ adhesive layer

3, 3a, 3b‧‧‧ stereo glass

32‧‧‧ plane

33‧‧‧ Surface

4‧‧‧Hot pressing mould

41‧‧‧ heating device

42‧‧‧Loading station

P‧‧‧ pressure

S02~S60‧‧‧Steps

1 is a flow chart showing a process for manufacturing a three-dimensional glass film according to a first embodiment of the present invention; intention.

FIG. 2 is a schematic diagram of step S10 and step S20 of the process method shown in FIG. 1.

3A is an enlarged schematic view of the film shown in FIG. 2.

FIG. 3B is an enlarged schematic view of the stereoscopic glass shown in FIG. 2. FIG.

FIG. 4 is a schematic diagram of the process method step S30 shown in FIG. 1.

5A and 5B are schematic diagrams showing the step S40 of the process method shown in FIG. 1.

6A is a schematic flow chart of a method for manufacturing a stereoscopic glass film according to a second embodiment of the present invention.

6B is a schematic view of a film and a stereoscopic glass produced according to the process method shown in FIG. 6A.

7A is a schematic flow chart of a method for manufacturing a stereoscopic glass film according to a third embodiment of the present invention.

FIG. 7B is a schematic view of a film and a stereoscopic glass produced according to the process method shown in FIG. 7A.

FIG. 7C is a schematic diagram of the process method step S50 shown in FIG. 7A.

FIG. 7D is a schematic diagram of the process method step S60 shown in FIG. 7A.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for manufacturing a three-dimensional glass film according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

1 is a schematic flow chart of a method for manufacturing a stereoscopic glass film according to a first embodiment of the present invention, which is shown in FIG. A method for manufacturing a three-dimensional glass film according to a preferred embodiment of the present invention comprises the steps of: providing a film having a film of a body layer and an adhesive layer (S10); placing a stereo glass and film into a hot pressing die The adhesive layer is disposed corresponding to the stereoscopic glass (S20); providing at least one of a predetermined temperature and a predetermined pressure to the film to pre-form the film (S30); and pressing the pre-formed film and the stereoscopic glass by the hot pressing mold The film and the stereoscopic glass are bonded to each other (S40).

2 is a schematic view of the process steps S10 and S20 shown in FIG. 1, and FIG. 3A is an enlarged schematic view of the film shown in FIG. 2, please refer to FIG. 1, FIG. 2 and FIG. 3A. In the step S10, a film 1 is provided, and the film 1 has a body layer 11. In this embodiment, an adhesive layer 2 is coated on a surface S of the film 1 to form the body layer 11 and the adhesive layer 2. Film 1. The film 1 of the present embodiment is mainly composed of a body layer 11 and an adhesive layer 2, Other embodiments may have other structures, which are described in detail later.

In step S20, a stereoscopic glass 3 and a film 1 are placed in a hot pressing die 4, and the film 1 is disposed correspondingly to the stereoscopic glass 3, that is, the film 1 has one side of the adhesive layer 2 and the stereoscopic glass 3 is to be attached to the film 1 The surface corresponds to the setting.

In the present embodiment, the film 1 is a film having ductility, and the body layer 11 can be, for example but not limited to, a polyethylene terephthalate (PET) film or polyethylene terephthalate ( Polyethylene Terephthalate, PETG) film, polyolefin (Polyolefin, PO) film, poly(ethylene) phenol (POE) film, polyethylene (Poly Ethylene, PE) film, or polypropylene ( Poly-Propylene, PP) film, and when the film 1 is attached to the stereoscopic glass 3, has the effect of protecting the stereoscopic glass 3, in other words, the stereoscopic glass 3 can be formed into the explosion-proof glass by attaching the film 1 to the stereoscopic glass 3.

In addition, the adhesive layer 2 of the present embodiment is exemplified by an acrylic adhesive. Preferably, it may be an Optically Clear Adhesive (OCA). In other embodiments, it may also be a thermosetting resin. The coating may be, for example but not limited to, Polyurethane (PU), Unsaturated polyester (UP), Epoxy resins, or Melamine Resin (Melamine Resin). Resin). The adhesive layer 2 can be applied to the body layer 11 by spraying, immersing, transferring, or transferring, and the present invention is not limited thereto. In step S10, the adhesive layer 2 may be applied to a surface S of the film 1 by a coating device to form the film 1 having the adhesive layer 2.

In detail, the stereoscopic glass 3 described in this embodiment refers to a non-planar glass. In this embodiment, the non-planar stereoscopic glass 3 is directly provided. In other embodiments, before step S20, the general The glass plate is preformed to form a stereoscopic glass 3, and the stereoscopic glass 3 can be first placed in a chemical strengthening liquid soaking device to enhance the surface strength of the stereoscopic glass 3 to strengthen the stereoscopic glass 3. Preferably, the material of the stereoscopic glass 3 may be a chemically strengthened aluminosilicate glass material such as a soda-lime formulation.

The stereoscopic glass 3 includes a non-planar glass such as a shape glass, a double curve glass, a 3D glass, or a forming glass. 3B is an enlarged schematic view of the stereoscopic glass shown in FIG. 2, as shown in FIG. 3B, the stereoscopic glass 3 includes at least one plane 32 and at least one curved surface 33. The three-dimensional glass 3 of the present embodiment has a quadrangular structure, so that the three-dimensional glass 3 includes a flat surface 32 and four curved surfaces 33, and four curved surfaces 33 are respectively disposed around the periphery of the flat surface 32, which is noted because of the viewing angle. The factor of FIG. 3B shows only three curved surfaces 33 of the stereoscopic glass 3. Preferably, the curved surfaces 33 are symmetrically disposed. For example, the three-dimensional glass 3 of the embodiment has substantially the same surface 33 of the two sides, and preferably, the curved angle of each curved surface 33 is less than 150 mm. This is a limit, and of course, the shape of the stereoscopic glass 3 is not limited. In addition, the specific gravity of the stereoscopic glass 3 of the present embodiment is preferably between 2.2 and 2.7, and the thickness is preferably less than 2.5 mm, and the surface roughness is preferably less than 0.05 mm. In detail, the surface roughness means that the surface of the stereoscopic glass 3 has a plurality of minute protrusions or depressions, the highest point of the protrusion is a peak, and the lowest point of the depression is a trough, and in this embodiment, The distance between the valleys of adjacent two peaks or depressions is less than 0.05 mm.

4 is a schematic diagram of the process method step S30 shown in FIG. 1, please refer to FIG. 1 and FIG. 4 at the same time. In step S30, the hot press mold 4 provides at least one of a predetermined temperature and a predetermined pressure to pre-form the film 1. In other words, step S30 is a step of pre-forming the film 1, and the term "pre-formation" as used herein refers to stretching the film 1 before bonding to the stereoscopic glass 3. In the present embodiment, the film 1 is preformed. Means that the film 1 is softened. In detail, the hot press mold 4 provides a predetermined temperature to soften the film 1 to stretch the film 1. Among them, the hot press mold 4 includes a heating device 41 for raising the temperature inside the hot press mold 4 to the predetermined temperature, and the predetermined temperature can be selected according to the characteristics of the film 1. In other embodiments, if the film 1 further includes other structures, such as an ink layer or a conductive layer (refer to FIG. 6B or FIG. 7B for details later), the predetermined temperature is preferably The film 1 softens but does not damage the temperature of the structure of the ink layer or the conductive layer. Preferably, the predetermined temperature is between 50 ° C and 130 ° C. In addition, in other embodiments, the film 1 may be pre-formed by providing a predetermined pressure to stretch the film 1, and preferably, the predetermined pressure is preferably between 1 and 3 atmospheres. Moreover, the hot stamping die 4 can simultaneously provide a predetermined temperature and a predetermined pressure to pre-form the film 1, which is not limited thereto.

5A and FIG. 5B are schematic diagrams showing the step S40 of the manufacturing method shown in FIG. 1, please refer to FIG. 1, FIG. 5A and FIG. 5B simultaneously. In step S40, the hot press die 4 presses the preformed film 1 and the stereoscopic glass 3 so that the film 1 and the stereoscopic glass 3 are bonded to each other. In detail, as shown in FIG. 5A, the hot pressing die 4 of the embodiment further includes a movable carrying platform 42, three-dimensional The glass 3 is disposed on the carrying platform 42. Before the step S40, the stereoscopic glass 3 can be brought close to the previously preformed film 1. Then, as shown in FIG. 5B, the hot pressing die 4 of the embodiment is provided with pressure. P, preferably greater than 1 atmosphere pressure and between 1 and 3 atmospheres, pressurizing the film 1 and the stereoscopic glass 3 by the pressure P, and bonding the film 1 and the stereoscopic glass 3 to each other, that is, the film 1 is flat and uniform The sticker is attached to the stereo glass 3. In addition, step S30 and step S40 may also be operated separately, that is, step S30 and step S40 are not limited to be completed in the same hot stamping die 4, in other words, the order of step S20 and step S30 is not limited, that is, the film 1 can be used in other molds. After preforming (step S30), it is placed in the hot press die 4, and is provided corresponding to the stereoscopic glass 3 (step S20).

Since the film 1 of the present invention has a ductile film, and the film 1 is preformed (softened) at a predetermined pressure and/or a predetermined temperature, the film 1 is pressed and pressed, and the film 1 is bonded. The stereoscopic glass 3 can be applied to curved surfaces 33 of different shapes or different curvatures.

In addition, the area of the film 1 after pre-forming may be larger than the area of the portion to which the three-dimensional glass 3 is to be attached. After the film 1 and the three-dimensional glass 3 are bonded to each other, the film 1 may have excess portions, so that the film after the bonding is taken out. 1 and the stereoscopic glass 3, the excess film 1 can be further removed. In the present embodiment, the excess film 1 is removed by laser cutting, but the present invention is not limited thereto.

6A is a schematic flow chart of a method for manufacturing a stereoscopic glass film according to a second embodiment of the present invention, and FIG. 6B is a schematic view of a film and a stereoscopic glass produced according to the process method shown in FIG. 6A, wherein the schematic is simple and clear. FIG. 6B shows only a portion in which the film 1a and the stereoscopic glass 3a are planar, and please refer to FIG. 6A and FIG. 6B at the same time. The film 1a of the present embodiment further includes a functional layer 12a in addition to the body layer 11a. Therefore, step S02 is substituted for step S10. As shown in FIG. 6A, in step S02, a film 1a is provided, and the film 1a further includes a functional layer 12a. Therefore, the film 1a has a body layer 11a, a functional layer 12a, and an adhesive layer 2a. The adhesive layer 2a is provided on the surface S on the side of the functional layer 12a. Therefore, when the film 1a is attached to the stereoscopic glass 3a, as shown in FIG. 6B, the functional layer 12a is interposed between the body layer 11a and the stereoscopic glass 3a to avoid contact with the outside to protect the material properties of the functional layer 12a. Of course, in other embodiments, the adhesive layer may also be disposed on the surface of the side of the body layer. When the film is attached to the stereoscopic glass, the body layer is sandwiched between the functional layer and the stereoscopic glass. This is limited to this.

Wherein, the body layer 11a is a film having ductility, as described above, For example, but not limited to, a polyethylene terephthalate film, a polyolefin film, a poly(ethylene glycol) glycol film, a polyethylene film, or a polypropylene film. The functional layer 12a includes an ink layer, a conductive layer, or a combination thereof. Specifically, the ink layer is a pattern to be formed on the stereoscopic glass 3a, and if the functional layer 12a is an ink layer, in step S02, the body layer 11a is first subjected to appearance treatment, that is, graining, coating or topping. After the ink layer is formed on the main body layer 11a, and after the film 1a is attached to the stereoscopic glass 3a through steps S20 to S40, the pattern of the ink layer (functional layer 12a) can be displayed on the stereoscopic glass 3a. A stereoscopic glass 3a having a pattern is formed.

If the functional layer 12a is a conductive layer, the conductive layer can be applied to an induction coil of electromagnetic induction or a sensing electrode layer of the touch panel, and the material of the conductive layer can be, for example but not limited to, indium-tin oxide (ITO). Or indium-zinc oxide (IZO), zinc oxide, silver oxide, graphene, silver wire or other conductive materials. In step S02, after the conductive layer (functional layer 12a) is disposed on the body layer 11a, the film 1a is bonded to the stereoscopic glass 3a through steps S20 to S40, thereby forming a conductive layer (functional layer 12a). Stereo glass 3a. When the stereoscopic glass 3a is applied to the casing of the electronic device, the stereoscopic glass 3a having the conductive layer (functional layer 12a) can be used as an electromagnetic induction charging structure or a glass casing having a touch sensing function.

7A is a schematic flow chart of a method for manufacturing a stereoscopic glass film according to a third embodiment of the present invention, and FIG. 7B is a schematic view of a film and a stereoscopic glass produced according to the process method shown in FIG. 7A, for simplicity and clarity of the drawing, Fig. 7B shows only a portion in which the film 1b and the stereoscopic glass 3b are flat, please refer to Figs. 7A and 7B at the same time. The film 1b of the present embodiment further includes a release layer 13b in addition to the body layer 11b and the functional layer 12b. Therefore, step S04 is substituted for step S10. As shown in FIG. 6A, in step S04, a film 1b is provided, and the film 1b has a film 1b. A body layer 11b, a release layer 13b, a functional layer 12b and an adhesive layer 2b. The release layer 13b is disposed between the functional layer 12b and the body layer 11b. Therefore, in this embodiment, a release layer 13b can be disposed on the surface 111b of a body layer, and then the release layer 13b is opposite to the body layer. The surface 131b of 11b is provided with a functional layer 12b, and an adhesive layer 2b is applied to the surface S of the film 1b to form a film 1b. Here, the surface S is the surface on the side of the functional layer 12b. In other embodiments, the functional layer may include an ink layer and a conductive layer at the same time, and the present invention is not limited thereto.

In other words, the film 1b is bonded to the stereoscopic glass through steps S20 to S40. After the glass 3b, the film 1b is viewed from the direction away from the stereoscopic glass 3b, and is sequentially the functional layer 12b, the release layer 13b, and the body layer 11b. The release layer 13b is a separable structure. In this embodiment, as shown in FIG. 7A, after the film 1b is attached to the stereoscopic glass 3b, the step S50 may be further included, and the release layer 13b is included. And the body layer 11b is separated from the solid glass 12b from the functional layer 12b to form a state in which the functional layer 12b is bonded to the stereoscopic glass 3b by the adhesive layer 2b, as shown in FIG. 7C, and FIG. 7C is a process shown in FIG. 7A. Method schematic of step S50. In addition, FIG. 7D is a schematic diagram of the process method step S60 shown in FIG. 7A. Please refer to FIG. 7A and FIG. 7D simultaneously. The manufacturing method of this embodiment may further include step S60, applying a cured layer 14b to the functional layer 12b. . Wherein, the cured layer 14b comprises a hardened coating, in other words, after the step S50, by applying a hardening coating to the functional layer 12b, the cured layer 14b is formed after the coating is hardened. The cured layer 14b can protect the functional layer 12b and has a smaller volume than the body layer 11b, so that a thinner and lighter structure can be formed.

In summary, the method for manufacturing the three-dimensional glass film of the present invention is to press the pre-formed film to form a film by pre-forming the film by a ductility of the film itself and at a predetermined pressure and/or a predetermined temperature. It can be flat and evenly bonded to the stereoscopic glass, and can also be applied to the stereoscopic glass with different curved surfaces.

In addition, when the film is attached to the stereoscopic glass, the structure of the strengthened stereoscopic glass can be used as an explosion-proof glass.

In addition, the film may further comprise a functional layer, and the functional layer may be an ink layer having a pattern. Therefore, the film may be formed into a stereoscopic glass having a pattern according to the method of glass applicator of the present invention. The functional layer can also be a conductive layer, so that the stereoscopic glass bonded to the film can be applied to an electromagnetic induction charging structure or a glass housing with a touch sensing function.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or changes made to the spirit and scope of this case shall be included in the scope of the appended patent application.

S10~S40‧‧‧Steps

Claims (12)

1. A method for manufacturing a three-dimensional glass film comprises the steps of: providing a film having a body layer and an adhesive layer; placing a stereoscopic glass and the film into a hot pressing die, the adhesive layer being disposed corresponding to the stereoscopic glass; Providing at least one of a predetermined temperature and a predetermined pressure to the film to pre-form the film, wherein the predetermined pressure is between 1 and 3 atmospheres; and the hot press mold presses the preformed film with the film The stereoscopic glass is such that the film and the three-dimensional glass are bonded to each other.
2. The process for producing a three-dimensional glass film according to claim 1, wherein the predetermined temperature is between 50 ° C and 130 ° C.
3. The method of manufacturing a three-dimensional glass film according to claim 1, wherein the film further comprises a functional layer comprising an ink layer, a conductive layer, or a combination thereof.
4. The method for manufacturing a three-dimensional glass film according to claim 3, wherein the film further comprises a release layer disposed between the functional layer and the body layer.
5. The method for manufacturing a three-dimensional glass film according to the fourth aspect of the invention, wherein the film and the three-dimensional glass are bonded to each other, further comprising: separating the release layer and the body layer from the stereoscopic glass.
6. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the body layer comprises a polyethylene terephthalate film, a polyolefin film, a poly(ethylene glycol) glycol film, and a polyethylene film. Or polypropylene film.
7. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the three-dimensional glass comprises a molded glass, a hyperboloid glass, a three-dimensional glass, or a molded glass.
8. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the thickness of the three-dimensional glass is less than 2.5 mm.
9. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the stereoscopic glass comprises a plane and a curved surface, and the curved surface is disposed at a periphery of the plane.
10. The method for manufacturing a three-dimensional glass film according to claim 9, wherein the curved surface has an arc angle of less than 150 mm.
11. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the stereo glass has a specific gravity of between 2.2 and 2.7.
12. The method for manufacturing a three-dimensional glass film according to claim 1, wherein the three-dimensional glass has a surface roughness of less than 0.05 mm.