WO2016197325A1

WO2016197325A1 - Screen-protecting film adhered in sections and production process and production line of same

Info

Publication number: WO2016197325A1
Application number: PCT/CN2015/081082
Authority: WO
Inventors: 周忠华
Original assignee: 东莞市三肯电子制造有限公司
Priority date: 2015-06-09
Filing date: 2015-06-09
Publication date: 2016-12-15

Abstract

A screen-protecting film adhered in sections and a production process and production line of the same. The screen-protecting film (1) comprises at least a first release film (11) and a main screen-protecting film (12). The first release film (11) has at least one dividing line (101); that is, the first release film (11) is divided into at least two areas at least by the dividing line (101). By providing the dividing line (101) at the first release film (11) of a bottom layer, that is, by pre-dividing the first release film (11) into several sections, the entire film can be adhered faster, minimizing prolonged exposure of the main screen-protecting film (12) of another surface region to the air, reducing the probability of contaminants such as small dust particles attaching, and reducing the probability of bubbles after film adhesion, such that the film adheres more closely, improving the use and protective effect thereof and extending the service life thereof.

Description

Segmented and conformable screen protector and its production process and production line

Technical field:

The invention relates to the field of screen protection film and its production process and equipment technology, and particularly relates to a segment-fit screen protection film and a production process and production line thereof.

Background technique:

Existing mobile phones, tablets, ipads and other electronic products use touch screens to operate. The service life of the screen directly affects the service life of the entire product. Therefore, consumers are paying more and more attention to the protection of the screen. A screen protector is attached to the surface of the screen. At present, screen protectors on the market are various according to the style of electronic products, but are structurally composed of three layers of film, the upper and lower layers are peeling films, and the middle is the protective film main film attached to the screen. . In the existing production process, after the three-layer film raw material is directly compounded, after one die-cutting, the periphery of the three-layer film is flush, so it is necessary to respectively peel the outer edge of the upper and lower peeling film. The strip can be peeled off better; on the other hand, since the upper and lower peeling films are monolithic, in the laminating process, the peeling film of the lower layer is often peeled off first, and then the edge of the protective film is held by hand to perform the pairing. Position and calibration, therefore, the alignment calibration is very inconvenient and takes a long time, so that all or most of the bonding surface of the main film of the protective film is exposed for a long time, and it is easy to adsorb particles in the air, and it is easy to have bubbles after bonding. Or bumps occur, affecting the quality of the fit and the life of the protective film.

Summary of the invention:

The object of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a segmented and conformable screen protector, a production process thereof and a production line.

The technical solution adopted by the present invention for achieving the object thereof is: a segment-fitting screen protective film comprising at least a first release film and a screen film main film, wherein the first release film has at least one The dividing line, that is, the first peeling film is divided into at least two areas by at least the dividing line.

The edge of at least one of each of the facets of the first release film divided by the dividing line protrudes from the edge of the main film of the screen-protecting film.

The screen protector further includes a second release film laminated on the upper surface of the main film of the screen protector film, and the second release film is externally attached with a tear-off strip.

The periphery of the first release film protrudes from the edge of the main screen film and the second release film; and the screen protection film is provided with a plurality of shape hole regions.

The invention also provides a production process of a segmented-fitting screen protector, which is suitable for producing a double-layer screen protector comprising a first release film and a screen protector main film; the production process comprises the following steps:

a. preparing the film raw materials, respectively: a first release film roll; a first release film protective film roll; a double-layer composite roll containing a release film and a screen save film main film; containing a release film and a running base film Double layer composite material roll;

b. peeling off the release film of the double-layer composite roll by the first bonding machine, attaching the first release film to the surface of the running base film peeling off the release film, and then bonding the first release film protective film Forming a three-layer composite comprising a running base film, a first release film, and a first release film protective film on a surface of the first release film;

c. die-cutting the first die-cutting machine on the three-layer composite body, the first die-cutting blade of the first die-cutting machine is vertically cut from the first peeling film protective film, and the depth of the blade is controlled to pass through the first peeling film, so that three The first release film protective film and the first release film on the layer composite form at least one dividing line;

d. The third laminating machine on which the dividing line is formed is placed on the second laminating machine, and the first release film protective film on the three-layer composite is peeled off; and the double-layer composite material containing the release film and the main film of the screen-protecting film is simultaneously removed. The second bonding machine is peeled off, and the release film is peeled off, and the main film of the screen protector film is adhered to the surface of the first release film to form a three-layer composite comprising the running base film, the first release film and the main film of the screen protection film. body;

e. die-cutting the formed three-layer composite on the second die-cutting machine, the second die-cutting machine having a closed second film cutting blade and a third die-cutting blade, controlling the second film cutting blade and the third die cutting The blade is simultaneously cut perpendicularly from the surface of the main film of the screen protector film, so that the blade depth of the second die cutting blade located in the outer frame just passes through the first peeling film, and the blade depth of the third die cutting blade located in the inner frame just passes through the main film of the screen protector film. Forming a screen protector semi-finished product still combined with the running base film in an inner region of the second die cutting blade;

f. Separating the semi-finished product of the screen protector from the running bottom film to remove the ring-shaped waste around the semi-finished product of the screen protector, that is, the finished screen protector film.

On the basis of the above process, the present invention also provides a production process of a segment-fitted screen protector comprising a first release film on the bottom layer, a main film on the screen in the middle, and a surface layer. a second release film; that is, the production process is suitable for producing a three-layer structure screen protector; the production process comprises the following steps:

a. Preparing the film raw materials, respectively: the first release film roll; the first release film protective film a three-layer composite material roll comprising a release film, a screen protector main film and a second release film, wherein the main film of the screen protector film is located in the intermediate layer; and the double-layer composite material roll containing the release film and the running base film;

d. The third bonding machine on which the dividing line is formed is placed on the second bonding machine to peel off the first release film protective film on the three-layer composite; and the release film, the screen film main film and the second release film are simultaneously contained. The three-layer composite material is coated on the second laminating machine, and the release film is peeled off, and the main film of the screen-protecting film is bonded to the surface of the first release film to form a main film comprising the running film, the first release film and the screen protector film. a four-layer composite of a film and a second release film;

e. die-cutting the formed four-layer composite on the second die-cutting machine, the second die-cutting machine having a closed second film cutting blade and a third die-cutting blade, controlling the second film cutting blade and the third die cutting The cutting edge is simultaneously cut perpendicularly from the surface of the second peeling film, so that the blade depth of the second die cutting blade located at the outer frame just passes through the first peeling film, and the blade depth of the third die cutting blade located in the inner frame just passes through the main film of the screen protector film. Forming a screen protector semi-finished product still combined with the running base film in an inner region of the second die cutting blade;

f. Separating the semi-finished product of the screen protective film from the running bottom film, removing the annular waste around the semi-finished product of the screen protective film, and then attaching a tear-off strip on the outer surface of the second peeling film to obtain the finished screen protective film.

Further, in the step e, the inner region of the third die cutting blade is simultaneously die-cut to form a plurality of shape hole regions, and the blade depth around the shape hole region penetrates at least the main film of the screen shielding film.

The running base film separated in step f is re-rolled with the release film.

The invention also provides a production line of a segment-fit screen protector comprising a first laminator, a first die-cutting machine, a second laminating machine and a second die-cutting machine, and at least one traction The first die cutting machine has a first die cutting blade formed by two parallel disposed blades, and the direction of the first die cutting blade is arranged along the running direction of the production line; the second die cutting machine has a rectangular shape a closed second film cutting blade and a third die cutting blade, wherein the second die cutting edge is located at the periphery, the third die cutting edge is located at the inner circumference, and the second die cutting edge has a blade depth greater than that of the third die cutting edge Blade depth.

In the above production line, the third die cutting blade of the second die cutting machine is further provided with a plurality of hole cutting edges, and the blade edge has a blade depth of at least the blade depth of the third die cutting blade.

The invention provides a dividing line in the first peeling film of the bottom layer, that is, the first peeling film is pre-divided into several sections, and when the filming operation is performed, the small area on the outermost side of the first peeling film may be firstly peeled off, and the other The rear surface area is not uncovered, so that the rear part of the protective film can be held by hand to perform the alignment step, so that the alignment step is faster and more accurate; when the area is fast-fitted, the tearing is opened again. Fit the next area of a release film, so This is done in sequence; this speeds up the entire film and minimizes exposure of the main film of the screen protector in other areas to the air for a long time, thereby reducing the chance of sticking to small dust and other contaminants and reducing the chance of bubbles after filming. Makes the film tighter, uses and protects better, and lasts longer.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 and 2 are a front view and a cross-sectional view of an embodiment of a screen protector of the present invention;

Figure 3 is a partial enlarged view of Figure 2;

4 is a schematic flow chart of a production process of a three-layer screen protector according to an embodiment of the present invention (the flow view of the first process and the third process is a view perpendicular to the running direction, and the view of the second process and the fourth process is parallel to the running direction. view);

Figure 5 is a schematic structural view of a screen protective film production line of the present invention;

6 and FIG. 7 are schematic views of the die cutting edge of the first die cutting machine in the production line of the present invention;

8 and 9 are schematic views of the die cutting edge of the second die cutting machine in the production line of the present invention.

detailed description:

The invention is further illustrated below in conjunction with the specific embodiments and the accompanying drawings.

First, as shown in FIG. 1 , FIG. 2 and FIG. 3 , the present invention is a segment-fit screen protector. In this embodiment, an IPHONE 5S mobile phone screen protector is taken as an example. The screen protector 1 includes a first release film 11 on the bottom layer, a screen protector main film 12 in the middle, and a second release film 13 on the surface layer. The second release film 13 is externally attached with a tear strip 14; A release film 11 has two dividing lines 101, that is, the first release film 11 is divided into three regions by the dividing line 101.

Further, each of the first release film 11 is divided by the dividing line 101 An edge of at least one side of the domain protrudes from an edge of the screen protector main film 12 and the second release film 13. In this embodiment, the periphery of the first release film 11 protrudes from the edge of the screen film main film 12 and the second release film 13, that is, the first release film 11 is protruded around, so that each area can be It is torn in multiple directions for easy film handling. Compared with the method of peeling the strips on the outside of each area, the production efficiency is higher and the products are more beautiful and tidy. The screen protector 1 is provided with a plurality of shaped hole regions 102.

Referring to FIG. 4 to FIG. 9 , the present invention further provides a production process of the above-mentioned segment-fitting screen protector, and the production process comprises the following steps:

a. preparing a film raw material, respectively: a first release film 11 roll; a first release film protective film 111 roll; a three-layer composite material containing the release film 1a, the screen save film main film 12, and the second release film 13 a roll in which the screen protector main film 12 is located in the intermediate layer; a double layer composite roll containing the release film 1b and the running base film 15;

b. The release film 1b of the double-layer composite roll is peeled off by the first bonding machine 2, and the first release film 11 is attached to the surface of the running base film 15 to peel off the release film, and then the first release film is attached. The protective film 111 is adhered to the surface of the first release film 11 to form a three-layer composite comprising the running base film 15, the first release film 11, and the first release film protective film 111;

c. Die-cutting the first die-cutting machine on the three-layer composite body, the first die-cutting blade 31 of the first die-cutting machine 3 is vertically cut from the first peeling film protective film 111, and the depth of the blade is controlled to pass through the first peeling The film 11 is not cut to the running base film 15, so that the first release film protective film 111 and the first release film 11 on the three-layer composite form at least one dividing line 101; this embodiment passes two parallel first die cutting The cutting edge 31 simultaneously forms two dividing lines 101;

d. The three-layer composite body on which the dividing line 101 is formed is placed on the second bonding machine 4, and the three layers are complexed. The first release film protective film 111 on the composite is peeled off; at the same time, the three-layer composite containing the release film 1a, the screen save film main film 12, and the second release film 13 is placed on the second bonding machine 4, and the release film is removed therefrom. The film 1a is peeled off, and the screen protector main film 12 is bonded to the surface of the first release film 11 to form a four-layer composite including the running base film 15, the first release film 11, the screen protector main film 12, and the second release film 13. ;

e. The second die cutter 5 is die-cut on the formed four-layer composite, and the second die cutter 5 has a closed second film cutting blade 51 and a third die cutting blade 52 to control the second film cutting blade 51. And the third die cutting blade 52 is simultaneously cut perpendicularly from the surface of the second release film 13, so that the blade depth of the second die cutting blade 51 located at the outer frame just penetrates the first release film 11, and the third die cutting blade 52 located at the inner frame The depth of the blade just passes through the main film 12 of the screen protector film, and a semi-finished screen protector film which is still combined with the running base film 15 is formed in the inner region of the second die cutting blade 51, and is formed at the second die cutting blade 51 and the third. The annular waste material 16 in the region between the die cutting blades 52, the annular waste material 16 comprises a perimeter structure of the main film 12 and a peripheral structure of the second release film 13;

f. Separating the screen protector semi-finished product from the running base film 15 to remove the annular scrap 16 around the semi-finished product of the screen protector, and then attaching a tear-off strip 14 to the outer surface of the second peeling film 13 to obtain a finished screen protector film .

Further, in the step e, a plurality of shaped hole regions 102 are simultaneously die-cut at the inner region of the third die cutting blade 52, and the blade depth around the shaped hole region 102 penetrates at least the main film of the screen protector film 12, and may also The specification and position of the second die-cutting blade 51, the third die-cutting blade 52, and the hole-cutting blade 53 are exactly corresponding to the shape, size, and style of the specific mobile phone or other electronic products. the design of, Make the finished screen protector meet the requirements of use. The waste in the shape of the hole can be automatically separated from the bottom film of the operation, and some of the semi-finished products with the protective film can be manually removed. The whole process of the glove and the finger set are manually operated in the production process to ensure the quality of the protective film product.

The running base film 15 separated in the step f is re-wound with the release film 1b, recycled, or directly returned to the starting position and directly put into use again.

Obviously, in the above process for producing a three-layer screen protective film, when preparing the film raw material, the main film of the screen-protecting film which is not composited with the second release film is used as a raw material, and the corresponding steps are produced, and the strip is not required to be peeled off, that is, A two-layer screen protector can be produced, so the production process and finished structure will not be described here.

As shown in FIGS. 5 to 9, the present invention realizes continuous production by a production line including a first laminating machine 2, a first die-cutting machine 3, a second laminating machine 4, and a second die-cutting machine which are sequentially disposed. 5 and at least one traction mechanism, an intermediate transition mechanism (not shown), the first die cutter 3 has a first die cutting edge 31 formed by two parallelly disposed blades, and the first die cutting The direction of the blade 31 is set along the running direction of the production line, and two parallel dividing lines 101 are formed on the first peeling film 11 of the screen protector 1 by the first die cutting blade 31, so that the first peeling film 11 is divided into three regions. The second die cutting machine 5 has a rectangular, closed second film cutting blade 51 and a third die cutting blade 52, wherein the second die cutting blade 51 is located at the periphery, The third die cutting blade 52 is located in the inner circumference, and the blade depth of the second die cutting blade 51 is greater than the blade depth of the third die cutting blade 53, and the difference in blade depth is exactly the thickness of the first peeling film 11, so that the second After the die cutting machine 5 is die-cut, the edge of the first release film 11 is formed to protrude from the screen saver. 13 forms the second edge of the film 12 and the main film peeling, so that the first release film 11 can The stripping strip can be easily peeled off without being attached, and the first peeling film 11 is divided into three areas, which can be attached in stages to prevent the post-adhesive area from being exposed for a long time and affecting the fitting. quality.

In the above production line, the inside of the third die cutting blade 52 of the second die cutting machine 5 is further provided with a plurality of hole cutting edges 53, and the blade edge 53 has a blade depth of at least the blade edge of the third die cutting blade 52. The depth, of course, can also reach the blade depth of the second die cutting edge 51, but cannot be cut to the running base film 15. The hole-shaped blade 53 is for forming a through hole corresponding to a button, an earpiece or a lamp position and a camera position on a product such as a mobile phone, and the hole-shaped blade may be circular, strip-shaped or rectangular.

In summary, the present invention provides a dividing line on the first peeling film of the bottom layer, that is, the first peeling film is pre-divided into several sections, and when performing the filming operation, the small area on the outermost side of the first peeling film may be firstly torn. The other areas of the back area are not uncovered, so that the back part of the protective film can be held by hand to perform the alignment step, so that the alignment step is faster and more accurate; when the area is fast and the surface is quickly fitted Then tearing off the next area of the first release film to perform the bonding, and thus sequentially; this can speed up the entire film, and try to avoid the long-term exposure of the main film of the screen surface film in other areas to the air, thereby reducing the The chance of adhering to small dust and other contaminants reduces the chance of bubbles after filming, making the film more compact, better use and protection, and longer life.

The above embodiments and the accompanying drawings are a simple embodiment of the present invention, and those skilled in the art can make various modifications or changes to the above embodiments without departing from the spirit and scope of the invention. Not limited to the above embodiments, but should be the maximum range of innovative features mentioned in the claims.

Claims

A segment-fit screen protector comprising at least a first release film and a screen save film main film, wherein the first release film has at least one dividing line, that is, the first peeling The film is divided into at least two regions by at least the dividing line.
The segment-fitting screen protector according to claim 1, wherein at least one of the edges of each of the facets of the first release film divided by the dividing line protrudes from the main film of the screen film. edge.
The segmented-fitting screen protector according to claim 1, wherein the screen protector further comprises a second release film laminated on the upper surface of the main film of the screen protector film, and the second release film is affixed with a tear label.
The segment-fitting screen protector according to claim 3, wherein a periphery of the first release film protrudes from an edge of the main film of the screen protector film and the second release film; There are several shaped hole areas.
A production process of a segmented-fit screen protector comprising a first release film and a screen save film main film; wherein the production process comprises the following steps:

a. preparing the film raw materials, respectively: a first release film roll; a first release film protective film roll; a double-layer composite roll containing a release film and a screen save film main film; containing a release film and a running base film Double layer composite material roll;

b. peeling off the release film of the double-layer composite roll by the first bonding machine, attaching the first release film to the surface of the running base film peeling off the release film, and then bonding the first release film protective film Forming a three-layer composite comprising a running base film, a first release film, and a first release film protective film on a surface of the first release film;

c. die-cutting the first die-cutting machine on the three-layer composite body, the first die-cutting blade of the first die-cutting machine is vertically cut from the first peeling film protective film, and the depth of the blade is controlled to pass through the first peeling film, so that three The first release film protective film and the first release film on the layer composite form at least one dividing line;

d. The third laminating machine on which the dividing line is formed is placed on the second laminating machine, and the first release film protective film on the three-layer composite is peeled off; and the double-layer composite material containing the release film and the main film of the screen-protecting film is simultaneously removed. The second bonding machine is peeled off, and the release film is peeled off, and the main film of the screen protector film is adhered to the surface of the first release film to form a three-layer composite comprising the running base film, the first release film and the main film of the screen protection film. body;

e. die-cutting the formed three-layer composite on the second die-cutting machine, the second die-cutting machine having a closed second film cutting blade and a third die-cutting blade, controlling the second film cutting blade and the third die cutting The blade is simultaneously cut perpendicularly from the surface of the main film of the screen protector film, so that the blade depth of the second die cutting blade located in the outer frame just passes through the first peeling film, and the blade depth of the third die cutting blade located in the inner frame just passes through the main film of the screen protector film. Forming a screen protector semi-finished product still combined with the running base film in an inner region of the second die cutting blade;

f. Separating the semi-finished product of the screen protector from the running bottom film to remove the ring-shaped waste around the semi-finished product of the screen protector, that is, the finished screen protector film.
A production process of a segmented-fit screen protector comprising a first release film on the bottom layer, a main film on the screen in the middle, and a second release film on the surface; characterized in that: The process consists of the following steps:

a. preparing the film raw materials, respectively: the first release film roll; the first release film protective film roll; the three-layer composite containing the release film, the screen save film main film and the second release film a roll, wherein the main film of the screen protector film is located in the middle layer; the double-layer composite material roll containing the release film and the running base film;

b. peeling off the release film of the double-layer composite roll by the first bonding machine, attaching the first release film to the surface of the running base film peeling off the release film, and then bonding the first release film protective film Forming a three-layer composite comprising a running base film, a first release film, and a first release film protective film on a surface of the first release film;

c. die-cutting the first die-cutting machine on the three-layer composite body, the first die-cutting blade of the first die-cutting machine is vertically cut from the first peeling film protective film, and the depth of the blade is controlled to pass through the first peeling film, so that three The first release film protective film and the first release film on the layer composite form at least one dividing line;

d. The third bonding machine on which the dividing line is formed is placed on the second bonding machine to peel off the first release film protective film on the three-layer composite; and the release film, the screen film main film and the second release film are simultaneously contained. The three-layer composite material is coated on the second laminating machine, and the release film is peeled off, and the main film of the screen-protecting film is bonded to the surface of the first release film to form a main film comprising the running film, the first release film and the screen protector film. a four-layer composite of a film and a second release film;

e. die-cutting the formed four-layer composite on the second die-cutting machine, the second die-cutting machine having a closed second film cutting blade and a third die-cutting blade, controlling the second film cutting blade and the third die cutting The cutting edge is simultaneously cut perpendicularly from the surface of the second peeling film, so that the blade depth of the second die cutting blade located at the outer frame just passes through the first peeling film, and the blade depth of the third die cutting blade located in the inner frame just passes through the main film of the screen protector film. Forming a screen protector semi-finished product still combined with the running base film in an inner region of the second die cutting blade;

f. Separate the screen protector semi-finished product from the running base film to remove the screen protector half The ring-shaped waste around the finished product is then attached with a tear-off strip on the outer surface of the second release film to obtain a finished screen protector film.
The process for producing a segment-fit screen protector according to claim 6, wherein in the step e, the inner region of the third die-cutting edge is simultaneously die-cut to form a plurality of shaped hole regions, and The depth of the blade around the hole area extends through at least the main film of the screen protector film.
The process for producing a segment-fit screen protector according to claim 6, wherein the running base film separated in the step f is re-rolled with the release film.
A production line of a segmented-fit screen protector comprising a first laminator, a first die-cutting machine, a second laminating machine and a second die-cutting machine arranged in sequence, wherein: a die cutting machine has a first die cutting blade formed by two parallel disposed blades, and a direction of the first die cutting blade is arranged along a running direction of the production line; the second die cutting machine has a rectangular shape, a closed type The second film cutting blade and the third die cutting blade, wherein the second die cutting edge is located at the periphery, the third die cutting edge is located at the inner circumference, and the blade edge depth of the second die cutting edge is greater than the blade depth of the third die cutting edge.
The production line of the segmented-fit screen protector according to claim 9, wherein the third die-cutting blade of the second die-cutting machine is further provided with a plurality of hole-shaped cutting edges, and the shaped holes are The blade has a blade depth of at least the blade depth of the third die cutting edge.