A die-cutting process and a die-cutting production line

Abstract

The present application discloses a die-cutting process and a die-cutting production line. The die-cutting process includes the following steps: successively laminating a bottom film, an original film, a release film, a film material, and a first facing paper; performing the first die-cutting; cutting out a center hole on the film material and forming positioning holes on the exposed part of the original film; performing the second die-cutting; forming tear holes on the second facing paper, the film material, the release film, and the bottom film, and the tear holes corresponding to the bonding parts; removing the bottom film and the release film, and laminating a mylar, a PET film, and a carrier film; performing the third die-cutting; wherein, entering the knife from one side of the third facing paper and penetrating the PET film, so that the PET film is cut out with a contour corresponding to the first film layer, and the film material is cut out with a contour corresponding to the second film layer, and the mylar is cut off to form a tear sticker. Through the die-cutting process of the present application, when the third die-cutting is performed, the PET film is located below the foam. Thus, during the die-cutting process, the tool will first cut off the foam and then cut off the PET film, thereby avoiding the problem that the PET film squeezes the foam and causes the foam to drive the PET film to deform.

Description

Technical Field

[0001] This application relates to the field of die-cutting technology, and particularly relates to a die-cutting process and a die-cutting production line. Background Art

[0002] In the related art, some die-cut products have hard thick foam. The hardness of the hard thick foam is about 80 degrees or above, and the thickness is 2.0 mm. This hard thick foam generally needs to be used in combination with a hard PET film. Among them, a die-cut product has a ring-shaped hard thick foam. For this die-cut product, in the production process of the prior art, the foam is first compounded on the carrier tape, holes are cut in the foam, and then the PET film is compounded on the foam. Then, the compounded tape is die-cut into an outer shape, and the tool enters the knife from one side of the PET film. Since the PET film and the foam are relatively hard, when the tool cuts downwards, the foam will first be flattened to a certain extent before being cut off. In addition, since holes are cut in the foam, that is, the middle of the foam is in a hollow and closed state, the foam will be subjected to forces in multiple directions from being squeezed by the tool to being cut off. For example, the downward squeezing force, the squeezing force towards the inside of the foam, and the upward acting force in the reverse direction. Therefore, after the tool is pulled out, the PET film will be deformed. Summary of the Invention

[0003] This application aims to at least solve one of the technical problems existing in the prior art. For this purpose, this application proposes a die-cutting process that can make the PET film located below the foam during the cutting process of the PET film, avoiding the deformation of the PET film driven by the foam during the cutting process.

[0004] This application also proposes a die-cutting production line having the above die-cutting process.

[0005] A die-cutting process according to an embodiment of the first aspect of this application is used to produce a die-cut product. The die-cut product includes a first film layer and a second film layer that are sequentially compounded. The material of the first film layer is PET film. The first film layer has a tear-off part and a bonding part. A tear-off sticker is attached to the tear-off part. The second film layer includes foam. The second film layer is bonded to the bonding part. The second film layer has a central hole. The die-cutting process includes the following steps:

[0006] Sequentially compound a bottom film, a raw film, a release film, a film material, and a first face paper; wherein, the raw film and the release film are compounded on the bottom film together, the film material is compounded on the release film and the raw film, the film material covers part of the raw film, the film material includes foam, and the first face paper is compounded on the film material;

[0007] Perform the first die-cutting; wherein, enter the knife from one side of the first face paper and penetrate the bottom film to cut out a central hole in the film material and form positioning holes in the exposed part of the raw film;

[0008] Discharge the hole waste formed in the first die-cutting;

[0009] Exclude the first facing paper, and laminate a second facing paper on the film material;

[0010] Perform a second die-cutting, wherein the knife enters from the side of the second facing paper and penetrates the bottom film, and tear holes are formed on the second facing paper, the film material, the release film, and the bottom film, and the tear holes correspond to the bonding portions;

[0011] Discharge the hole waste formed in the second die-cutting;

[0012] Exclude the bottom film and the release film, and laminate mylar, PET film, and a carrier film. Among them, the PET and the original film are laminated on the carrier film, the mylar is laminated on the PET, and the mylar is located within the tear holes;

[0013] Exclude the second facing paper, and laminate a third facing paper on the film material;

[0014] Perform a third die-cutting; wherein the knife enters from the side of the third facing paper and penetrates the PET film, so that the PET film is cut out to form a contour corresponding to the first film layer, and the film material is cut out to form a contour corresponding to the second film layer, and the mylar is cut to form the tear sticker;

[0015] Exclude the waste material formed by the third die-cutting to form a die-cut product;

[0016] Exclude the carrier film, transfer the die-cut product to a transfer film, and wind it up.

[0017] According to the die-cutting process of the first aspect embodiment of the present application, it has at least the following beneficial effects: Through the die-cutting process of the present application, when performing the third die-cutting, the PET film is located below the foam. Thus, during the die-cutting process, the tool will first cut the foam and then cut the PET film, thereby avoiding the problem that the PET film squeezes the foam during die-cutting, causing the foam to drive the PET film to deform.

[0018] According to some embodiments of the present application, the film material further includes two layers of double-sided tape, and the double-sided tapes are respectively laminated on both sides of the foam.

[0019] According to some embodiments of the present application, the mylar is red or blue.

[0020] According to some embodiments of the present application, it further includes a second die-cutting device, and the second die-cutting device is used for performing the second die-cutting. The second die-cutting device has a second positioning post for cooperating with the positioning holes.

[0021] According to some embodiments of the present application, it further includes a third die-cutting device, which is used for performing the third die-cutting. The third die-cutting device has a third positioning post for cooperating with the positioning hole.

[0022] According to some embodiments of the present application, the second film layer is in an annular structure. Correspondingly, the bonding part is circular.

[0023] According to some embodiments of the present application, there are two original films, and the two original films are located on both sides of the release film or the PET film.

[0024] A die-cutting production line according to an embodiment of the second aspect of the present application is used to manufacture die-cut products by applying the die-cutting process of the embodiment of the first aspect.

[0025] The die-cutting production line according to the embodiment of the second aspect of the present application has at least the following beneficial effects: including all the beneficial effects of the die-cutting process of the embodiment of the first aspect described above, which will not be elaborated here.

[0026] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following further describes the present application in conjunction with the drawings and embodiments, where:

[0028] Figure 1 It is the front view of each strip after step 1 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0029] Figure 2 It is the front view of each strip after step 2 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0030] Figure 3 It is the knife line diagram formed after step 2 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0031] Figure 4 It is the front view of each strip after step 4 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0032] Figure 5 It is the front view of each strip after step 5 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0033] Figure 6 It is the knife line diagram formed after step 5 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0034] Figure 7 It is the front view of each strip after step 8 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0035] Figure 8 The front view of each strip after step 9 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0036] Figure 9 The knife line diagram formed after step 9 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0037] Figure 10 The front view of each strip after step 10 of the die-cutting process according to the embodiment of the first aspect of the present application;

[0038] Figure 11 The three-dimensional view of the die-cut product manufactured by the die-cutting process according to the embodiment of the first aspect of the present application;

[0039] Figure 12 The schematic diagram of the die-cutting process for producing die-cut products in the prior art.

[0040] Reference numerals:

[0041] Die-cut product 100, first film layer 110, tear portion 111, bonding portion 112, second film layer 120, tear sticker 130;

[0042] Original film 200;

[0043] Release film 300;

[0044] Film material 400, foam 410, double-sided tape 420;

[0045] First facing paper 510, second facing paper 520, third facing paper 530;

[0046] Mylar 600;

[0047] PET film 700;

[0048] Bottom film 810, carrier film 820, carrier tape 830;

[0049] Center hole 910, positioning hole 920, tear hole 930. Detailed implementation manners

[0050] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0051] In the description of the present application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0052] In the description of the present application, the meaning of "several" is more than one, the meaning of "multiple" is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the corresponding number, and understandings such as above, below, within, etc. include the corresponding number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0053] In the description of the present application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present application in combination with the specific content of the technical solution.

[0054] In the description of the present application, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] A die-cut product 100, referring to Figure 8, the die-cut product 100 includes a first film layer 110 and a second film layer 120 that are sequentially laminated. The material of the first film layer 110 is a PET film 700. The first film layer 110 has a tear portion 111 and an adhesion portion 112. A tear sticker 130 is attached to the tear portion 111. The second film layer 120 at least includes a foam 410. The second film layer 120 is attached to the adhesion portion 112, and the second film layer 120 has a central hole 910. Specifically, the die-cut product 100 is used for dust protection of the camera during the production process of electronic products. That is, during the assembly process of electronic products, the die-cut product 100 is attached to the camera. Specifically, the second film layer 120 is attached to the edge position of the camera, so that the first film layer 110 is attached to the camera. The adhesion portion 112 of the PET film 700 of the first film layer 110 can play a role in dust prevention for the camera. The foam surface of the second film layer 120 can play a certain buffering role for the camera. The tear portion 111 of the first film layer 110 can facilitate the grasping of the die-cut product 100, thereby facilitating attachment or removal, and the tear sticker 130 can facilitate the observation of the position of the tear portion 111.

[0056] It should be noted that the foam 410 in the die-cut product 100 is a hard thick foam 410. The hardness of the hard thick foam 410 is about 80 degrees or above, and the thickness is 2.0 mm. The hard thick foam 410 generally needs to be used in combination with a hard PET film 700.

[0057] In order to produce the above-mentioned die-cut product 100, in the production process of the prior art, with reference to Figure 12 , first, the foam 410 is laminated on the carrier tape 830, holes are cut in the foam 410, and then the PET film 700 is laminated on the foam 410 to form a composite tape. Then, the composite tape is die-cut into an outer shape. The tool enters the knife from the side of the PET film 700. Since the PET film 700 and the foam 410 are relatively hard, when the tool cuts downwards, the foam 410 will first be flattened to a certain extent before being cut off. In addition, since holes have been cut in the foam 410 first, that is, the middle of the foam 410 is in a hollow and closed state, the foam 410 will be subjected to forces in multiple directions from being squeezed by the tool to being cut off. For example, a downward squeezing force, a squeezing force towards the inside of the foam 410, and a reverse upward force. As a result, the foam 410 deforms, causing the PET film 700 to also deform. Therefore, with reference to Figure 12 , after the tool is pulled out, the foam 410 can recover due to its own plasticity, while the PET film 700 will deform, affecting the quality of the finished product.

[0058] To solve the above problems, the present application provides a die-cutting process for producing the above-mentioned die-cut product 100.

[0059] A die-cutting process according to an embodiment of the first aspect of the present application includes the following steps:

[0060] Step 1: Successively laminate the bottom film 810, the original film 200, the release film 300, the film material 400, and the first facing paper 510; among them, the original film 200 and the release film 300 are laminated on the bottom film 810 together, the film material 400 is laminated on the release film 300 and the original film 200, the film material 400 covers part of the original film 200, the film material 400 includes the foam 410, and the first facing paper 510 is laminated on the film material 400;

[0061] It can be understood that after Step 1, the lamination situation of each strip of material is referred to Figure 1 , the release film 300 and the original film 200 are respectively laminated on the bottom film 810, the film material 400 is laminated on the release film 300 and partially covers part of the original film 200, and the facing paper is laminated on the film material 400. It should be noted that the film material 400 is used to form the second film layer 120 in the die-cut product 100, the release film 300 is used to support the film material 400 in the subsequent steps, and the original film 200 is used to punch the positioning holes 920 to ensure the accurate die-cut position. In this embodiment, there are two original films 200, and they are respectively located on both sides of the release film 300. In other embodiments, there may be only one original film 200.

[0062] Step 2: Perform the first die-cutting; among them, cut from the side of the first facing paper 510 and penetrate the bottom film 810 to cut out the center hole 910 on the film material 400 and form the positioning holes 920 on the exposed part of the original film 200;

[0063] It can be understood that after Step 2, the die-cut situation of each strip of material is referred to Figure 2 , and the cutting line formed after Step 2 is referred to Figure 3 , the center hole 910 is cut out on the film material 400, and this center hole 910 corresponds to the position of the center hole 910 of the die-cut product 100. And because the bottom film 810 is penetrated, the center holes 910 are also correspondingly formed on the first facing paper 510, the release film 300, and the bottom film 810. The positioning holes 920 are cut out on the original film 200. And because the bottom film 810 is penetrated and the sizes of the first facing paper 510 and the film material 400 are smaller, so referring to Figure 2 , only the corresponding positioning holes 920 are also formed at the corresponding positions on the bottom film 810. The positioning holes 920 are used for positioning in the subsequent die-cutting process to ensure the accurate die-cut position in the subsequent steps. Specifically, the positioning holes 920 can cooperate with the positioning posts on the die-cutting device for die-cutting. When the die-cutting device performs die-cutting, the positioning posts can be inserted into the positioning holes 920 to ensure the accuracy of die-cutting by the die-cutting device.

[0064] Step 3: Discharge the hole waste formed in the first die-cutting;

[0065] It is understandable that corresponding hole waste is formed when forming the central hole 910 and the positioning hole 920 in Step 2, and the hole waste is removed through Step 3.

[0066] Step 4: Remove the first side paper 510 and laminate the second side paper 520 on the film material 400;

[0067] It is understandable that the first side paper 510 on the film material 400 is replaced with the second side paper 520.

[0068] Moreover, in Step 3 and Step 4, the lamination situation of each strip is as Figure 4 .

[0069] Step 5: Perform a second die-cutting. Among them, cut from the side of the second side paper 520 and penetrate the bottom film 810 to form a tear hole 930 on the second side paper 520, the film material 400, the release film 300, and the bottom film 810. The tear hole 930 corresponds to the fitting part 112;

[0070] It is understandable that after Step 5, the die-cutting situation of each strip is referred to Figure 5 , and the knife lines formed after Step 5 are referred to Figure 6 (The figure contains the knife lines formed in Step 2). The second side paper 520, the film material 400, the release film 300, and the bottom film 810 respectively form a tear hole 930, and the tear hole 930 corresponds to the position of the tear part 111 of the above die-cut product 100.

[0071] Step 6: Remove the hole waste formed in the second die-cutting;

[0072] It is understandable that corresponding hole waste is formed when forming the tear hole 930 in Step 5, and the hole waste is removed through Step 6.

[0073] Step 7: Remove the bottom film 810 and the release film 300, and laminate the mylar 600, the PET film 700, and the carrier film 820. Among them, the PET and the original film 200 are laminated on the carrier film 820, the mylar 600 is laminated on the PET, and the mylar 600 is located inside the tear hole 930;

[0074] It is understandable that refer to Figure 7, during the process of removing the bottom film 810 and the release film 300, since a part of the original film 200 is laminated with the foam 410, the original film 200 will not fall off. After removing the bottom film 810 and the release film 300, the PET film 700 replaces the position of the release film 300, and the carrier film 820 replaces the bottom film 810 to support the PET film 700 and the original film 200. Among them, the PET film 700 is used to form the first film layer 110 in the above-mentioned die-cut product 100, and the mylar 600 is used to form the tear-off sticker 130 in the above-mentioned die-cut product 100. Since the tear-off holes 930 are pre-cut in step 5, the mylar 600 can be located within the tear-off holes 930 of the film material 400.

[0075] Step 8: Remove the second face paper 520 and laminate the third face paper 530 on the film material 400;

[0076] It can be understood that, referring to Figure 7 , the second face paper 520 on the film material 400 is replaced with the third face paper 530.

[0077] Step 9: Perform the third die-cutting; among them, cut into the film from the side of the third face paper 530 and penetrate the PET film 700, so that the PET film 700 is cut out to form the contour corresponding to the first film layer 110, and the film material 400 is cut out to form the contour corresponding to the second film layer 120, and the mylar 600 is cut off to form the tear-off sticker 130;

[0078] It can be understood that after step 9, the situation of each strip being die-cut is referred to Figure 8 , and the cutting lines formed after step 9 are referred to Figure 9 (the figure contains the cutting lines formed in step 2 and step 6), among which, Figure 9 the thickened lines are the cutting lines in the third die-cutting. Referring to Figure 8 , in the third die-cutting, it penetrates through the PET film 700; referring to Figure 9 , the cutting lines corresponding to the third die-cutting correspond to the contour of the second film layer 120. Since the tear-off holes 930 are formed in the second die-cutting, the cutting lines corresponding to the tear-off holes 930 (i.e., the cutting lines in the second die-cutting) close to the side of the center hole 910 cooperate with the cutting lines of the third die-cutting, so that the film material 400 is cut out to form the contour corresponding to the second film layer 120 in the above-mentioned die-cut product 100. At the same time, the PET film 700 is cut out to form the contour corresponding to the second film layer 120; since the center hole 910 is formed in the first die-cutting and the position of the center hole 910 is within the contour of the third die-cutting, the film material 400 cut out with the contour of the second film layer 120 has the center hole 910 to correspond to the second film layer 120 in the die-cut product 100; since the mylar 600 is located at the contour position corresponding to the tear-off part 111 in the cutting lines of the third die-cutting, the mylar 600 is cut off to form the tear-off sticker 130 and adheres to the position of the tear-off part 111 of the PET film 700.

[0079] Step 10: Exclude the waste formed by the third die-cutting to form the die-cut product 100;

[0080] It can be understood that through Step 9, the PET film 700 and the film material 400 have respectively formed the shapes and structures of the first film layer 110 and the second film layer 120 corresponding to the above-mentioned die-cut product 100. Refer to Figure 10 , and excluding the excess waste can form the finished product. For example, exclude the frame waste of the original film 200, the PET film 700, the frame waste of the film material 400, and the third facing paper 530.

[0081] Step 11: Exclude the carrier film 820, transfer the die-cut product 100 to the transfer film, and wind it up.

[0082] It can be understood that through Step 10, the waste in Step 9 is excluded, only the part corresponding to the die-cut product 100 is left, the die-cut product 100 is transferred to the transfer film, and the transfer film is wound up to complete the production.

[0083] It should be noted that the original film 200, the release film 300, the film material 400, the foam 410, the double-sided tape 420, the first facing paper 510, the second facing paper 520, the third facing paper 530, the mylar 600, the PET film 700, the bottom film 810, the carrier film 820, the transfer film, the carrier tape 830, etc. are all tape materials.

[0084] According to the die-cutting process of the first aspect embodiment of the present application, it has at least the following beneficial effects:

[0085] First, through the die-cutting process of the present application, when the third die-cutting is performed, the PET film 700 is located below the foam 410. Thus, during the die-cutting process, the tool will first cut the foam 410 and then cut the PET film 700, thereby avoiding the problem that the PET film 700 squeezes the foam 410 during the die-cutting process, resulting in the deformation of the PET film 700 driven by the foam 410.

[0086] Second, the die-cutting process of the present application has three die-cutting processes. To ensure the accuracy of the die-cutting position, it is necessary to cut positioning holes 920. In addition, before the second die-cutting is completed, the release film 300 needs to support the film material 400. In order to laminate the PET film 700 below the foam 410, the release film 300 below the foam 410 needs to be replaced with the PET film 700 before the third die-cutting. Thus, if a wide release film 300 is used and the positioning holes 920 are directly formed on the release film 300, the positioning holes 920 will be excluded together when the release film 300 is removed before the third die-cutting, resulting in no positioning holes 920 for positioning during the third die-cutting process. It can be understood that in the present application, the original film 200 and the release film 300 are laminated on the bottom film 810 at the same time. The original film 200 is used to cut out the positioning holes 920, and the release film 300 is used to carry the film material 400 at the beginning. Before the third die-cutting, the release film 300 is removed and replaced with the PET film 700 corresponding to the die-cut product 100, and the original film 200 with the positioning holes 920 will not be excluded. Thus, during the third die-cutting, it is ensured that the PET film 700 is located below the foam 410, and the positioning holes 920 on the original film 200 ensure the accuracy of the die-cutting position.

[0087] Third, the original films 200 on both sides have a certain supporting and limiting effect on the die-cutting process of the PET film 700, which helps to achieve accurate die-cutting.

[0088] Referring to Figure 8 , the second film layer 120 in the above die-cut product 100 further includes double-sided adhesive 420, and the double-sided adhesive 420 has the same shape as the foam 410 and is attached to both sides of the foam 410. Thus, in some embodiments of the present application, the film material 400 further includes two layers of double-sided adhesive 420, and the double-sided adhesives 420 are respectively laminated on both sides of the foam 410. It can be understood that the double-sided adhesive 420 and the foam 410 can be pre-laminated and the film material 400 can be directly fed as a whole, or the double-sided adhesive 420 can be laminated on the foam 410 in step 1.

[0089] It should be noted that since the PET film 700 is transparent, to avoid the above die-cut product 100 being difficult to be found during use, in this embodiment, the mylar 600 is red or blue. Thus, the tear-off sticker 130 is red or blue.

[0090] According to some embodiments of the present application, it further includes a second die-cutting device, and the second die-cutting device is used for the second die-cutting. The second die-cutting device has second positioning posts for cooperating with the positioning holes 920.

[0091] According to some embodiments of the present application, it further includes a third die-cutting device, and the third die-cutting device is used for the third die-cutting. The third die-cutting device has third positioning posts for cooperating with the positioning holes 920.

[0092] Referring to Figure 11 , the second film layer 120 is in a ring structure, and correspondingly, the fitting portion 112 is circular.

[0093] Referring to Figure 1 , the original film 200 includes two pieces, and the two original films 200 are located on both sides of the release film 300 or the PET film 700.

[0094] A die-cutting production line according to an embodiment of the second aspect of the present application is used to manufacture a die-cut product 100 by applying the die-cutting process of the embodiment of the first aspect.

[0095] The die-cutting production line according to the embodiment of the second aspect of the present application has at least the following beneficial effects: including all the beneficial effects of the die-cutting process of the embodiment of the first aspect above, which will not be elaborated here.

[0096] The embodiments of the present application have been described in detail above with reference to the drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present application within the knowledge of those of ordinary skill in the art. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A die-cutting process, characterized in that, For producing a die-cut product, the die-cut product includes a first film layer and a second film layer which are sequentially laminated. The material of the first film layer is PET film. The first film layer has a tear-off part and an attachment part. A tear-off sticker is attached to the tear-off part. The second film layer includes foam, and the second film layer is attached to the attachment part. The second film layer has a central hole. The die-cutting process includes the following steps: Sequentially laminate a base film, a raw film, a release film, a film material, and a first face paper; wherein, the raw film and the release film are laminated together on the base film, the film material is laminated on the release film and the raw film, the film material covers part of the raw film, the film material includes foam, and the first face paper is laminated on the film material; Perform the first die-cutting; wherein, cut in from the side of the first face paper and penetrate the base film to cut out a central hole in the film material and form positioning holes in the exposed part of the raw film; Discharge the hole waste formed in the first die-cutting; Remove the first face paper and laminate a second face paper on the film material; Perform the second die-cutting; wherein, cut in from the side of the second face paper and penetrate the base film to form tear-off holes in the second face paper, the film material, the release film, and the base film, and the tear-off holes correspond to the attachment part; Discharge the hole waste formed in the second die-cutting; Remove the base film and the release film, and laminate a mylar, a PET film, and a carrier film. Among them, the PET and the raw film are laminated on the carrier film, the mylar is laminated on the PET, and the mylar is located within the tear-off holes; Remove the second face paper and laminate a third face paper on the film material; Perform the third die-cutting; wherein, cut in from the side of the third face paper and penetrate the PET film so that the PET film is cut out to correspond to the contour of the first film layer, and the film material is cut out to correspond to the contour of the second film layer, and the mylar is cut off to form the tear-off sticker; Remove the waste formed in the third die-cutting to form a die-cut product; Remove the carrier film, transfer the die-cut product to a transfer film, and wind it up.

2. A die-cutting process according to claim 1, characterized in that, The film material further includes two layers of double-sided tape, and the double-sided tapes are respectively laminated on both sides of the foam.

3. A die-cutting process according to claim 1, wherein The mylar is red or blue.

4. A die-cutting process according to claim 1, characterized in that, It further includes a second die-cutting device for performing the second die-cutting. The second die-cutting device has a second positioning post for cooperating with the positioning hole.

5. A die-cutting process according to claim 1, wherein, It further includes a third die-cutting device for performing the third die-cutting. The third die-cutting device has a third positioning post for cooperating with the positioning hole.

6. A die-cutting process according to claim 1, wherein, The second film layer is in a ring structure. Correspondingly, the attachment part is circular.

7. A die-cutting process according to claim 1, wherein, There are two raw films, and the two raw films are located on both sides of the release film or the PET film.

8. A die-cutting production line, characterized in that, Manufacture a die-cut product by applying the die-cutting process according to any one of claims 1 to 7 above.

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