CN108407322B - Production process of diffusion film with two sides attached with black single-sided adhesive tape - Google Patents
Production process of diffusion film with two sides attached with black single-sided adhesive tape Download PDFInfo
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- CN108407322B CN108407322B CN201810157092.2A CN201810157092A CN108407322B CN 108407322 B CN108407322 B CN 108407322B CN 201810157092 A CN201810157092 A CN 201810157092A CN 108407322 B CN108407322 B CN 108407322B
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- film
- sided adhesive
- adhesive tape
- black single
- diffusion film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to the technical field of die cutting, in particular to a production process of a diffusion film with black single-sided adhesive tapes attached to two sides.
Description
Technical Field
The invention relates to the technical field of die cutting, in particular to a production process of a diffusion film with two sides attached with black single-sided adhesive tapes.
Background
The diffusion film is mainly used for a backlight source part of the LCD module. In order to prevent light loss, as shown in fig. 2, a diffusion film used on a mobile phone screen symmetrically adheres black single-sided adhesive tapes 1 to upper and lower sides of the diffusion film, wherein the black single-sided adhesive tape 1 comprises a black single-sided adhesive tape inner side 13 and a black single-sided adhesive tape outer side 14, the black single-sided adhesive tape outer side 14 is aligned with the diffusion film side, the existing production process is to adhere the black single-sided adhesive tapes to the two sides of the diffusion film directly through an adhering machine, in order to ensure the parallelism between the black single-sided adhesive tape inner side 13 and the diffusion film outer side, prevent the difference in the widths of the black single-sided adhesive tapes adhered to the diffusion film, and thus affect the use effect of the diffusion film, the black single-sided adhesive tape needs to be firstly cut by a cutter of a die cutter, when the black single-sided adhesive tape inner side 13 is cut, the cutter cuts from the upper surface of the black single-sided adhesive, because the black single-sided adhesive tape is tightly attached to the diffusion film, the cutting depth of the cutter is not enough, and the black single-sided adhesive tape cannot be removed without being cut; the diffusion film can be damaged when the cutting depth is large, the requirement on a die cutting machine is high, and the conventional common die cutting machine is difficult to ensure that the diffusion film is not damaged on the premise of cutting the black single-sided adhesive tape, so that the finished product rate is very low, and the processing cost is very high.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a production process of a diffusion film with two sides laminated with a black single-sided adhesive tape, which aims to solve the problems that the existing production process is to directly laminate the black single-sided adhesive tape on two sides of the diffusion film through a laminating machine, then to cut the black single-sided adhesive tape through a cutter of a die cutter, when the inner side of the black single-sided adhesive tape is cut, the cutter cuts the diffusion film, so that the diffusion film is damaged, a release film is arranged between the diffusion film and the black single-sided adhesive tape, when the inner side of the black single-sided adhesive tape is cut for the first time through the cutter, the cutting edge of the cutter can be ensured to fall on the upper surface of the release film, so that the diffusion film is protected, the release film is fixed through a second laminating area of the release film, the release film is pulled out from the space between the diffusion film and the single-sided adhesive tape, so that the cutting of the inner side of the black single-sided adhesive, the diffusion film has zero damage rate, and the production cost is greatly reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: a production process of a diffusion film with two sides attached with a black single-sided adhesive tape comprises the following steps,
step one, first laminating: attaching the lower surface of a diffusion film and the upper surface of a bottom film along the movement direction of the bottom film, and attaching release films to two sides of the upper surface of the diffusion film along the movement direction of the bottom film respectively, wherein each release film comprises a first release film attaching area close to the side edge of the diffusion film and a second release film attaching area far away from the side edge of the diffusion film, and black single-sided adhesive tapes are attached to the upper surfaces of the release films on two sides along the movement direction of the bottom film respectively, each black single-sided adhesive tape comprises a first black single-sided adhesive tape attaching area close to the side edge of the diffusion film and a second black single-sided adhesive tape attaching area far away from the side edge of the diffusion film, so that the adhesive surface of the first black single-sided adhesive tape attaching area is attached to the diffusion film, and the adhesive surface of the second black single-sided adhesive tape attaching area;
step two, cutting for the first time:
cutting the inner side edge of the black single-sided adhesive tape: cutting vertically downwards by a cutter along the motion direction parallel to the bottom film, wherein the cutting depth is from the upper surface of the second attaching area of the black single-sided adhesive tape to the lower surface of the second attaching area of the black single-sided adhesive tape;
step three, removing waste materials for the first time: fixing a second laminating area of the release film through equipment, pulling the release film out from between the diffusion film and the black single-sided adhesive tape, and removing the black single-sided adhesive tape laminated on the release film cut in the step two together;
step four, cutting for the second time:
cutting the diffusion film according to the size of the diffusion film frame: the cutting depth is from the upper surface of the black single-sided adhesive tape to the joint surface of the diffusion film and the bottom film;
step five, removing waste materials for the second time: and removing the diffusion film and black single-sided adhesive tape waste outside the diffusion film frame in the fourth step.
Wherein, during the cutting of second time, can make the sticky tape width of diffusion barrier both sides remain the same width according to actual demand, perhaps different width all can, can make the adjustment according to actual production condition.
In order to prevent the diffusion film from falling off from the bottom film in the transportation process, the method further comprises the steps of six and second attaching: and attaching the net grain film to the diffusion film along the moving direction of the bottom film.
Specifically, in the first step, one side of the black single-sided tape on both sides of the diffusion film is a black single-sided tape (1) with the thickness of 0.01mm, and the other side of the black single-sided tape is a black single-sided tape with the thickness of 0.1mm or 0.15 mm.
Of course, the thickness of the black single-sided adhesive tape on both sides of the diffusion film in the first step can also be adjusted according to the actual production conditions.
The invention has the beneficial effects that: the invention provides a production process of a diffusion film with two sides attached with a black single-sided adhesive tape, wherein a release film is arranged between the diffusion film and the black single-sided adhesive tape, when the inner side of the black single-sided adhesive tape is cut for the first time by a cutter, the cutting edge of the cutter can be ensured to fall on the upper surface of the release film, so that the diffusion film is protected, a second attaching area of the release film is fixed by a second attaching machine, the release film is pulled out from between the diffusion film and the black single-sided adhesive tape, and the cutting of the inner side of the black single-sided adhesive tape can be finished, so that the yield is effectively ensured, the zero damage rate of the diffusion film is realized, a die-cutting machine with common precision can finish the processing, and the production cost.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the production process of a diffusion film with two sides attached with black single-sided tape according to the present invention;
FIG. 2 is a schematic view of a prior art, wherein two side edges are attached with black single-sided tape;
FIG. 3 is a schematic structural diagram of a first composite film formed after a first lamination in step one;
FIG. 4 is a view A-A of FIG. 3;
FIG. 5 is a schematic view of a cutting die of the first cutter;
FIG. 6 is a schematic view of a cutting die of the second cutter;
FIG. 7 is a schematic structural view of a second composite film formed after completion of step five;
fig. 8 is a schematic view of the finished product formed after step six is completed.
Wherein: 1. a black single-sided tape; 2. a base film; 3. a diffusion membrane; 4. a release film; 5. a textured film; 6. a first laminating machine; 7. a first die cutting machine; 71. a first cutter; 8. a second laminating machine; 9. a second die cutting machine; 91. a second cutter; 10. a third laminator; 11. a first laminating area; 12. a second laminating area; 13. the inner side of the black single-sided adhesive tape; 14. the outer side edge of the black single-sided adhesive tape; 41. a first laminating area of the release film; 42. and a second laminating area of the release film.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams illustrating only the basic structure of the invention in a schematic manner, and thus show only the constitution related to the invention.
As shown in fig. 1, a process for manufacturing a diffuser film with a black single-sided tape attached to both sides thereof includes the steps of,
step one, first laminating: laminate the lower surface of diffusion barrier 3 and the upper surface of basement membrane 2 along the direction of motion of basement membrane 2 through first rigging machine 6, laminate respectively from type membrane 4 in the both sides of 3 upper surfaces of diffusion barrier along the direction of motion of basement membrane 2 to laminate black single face sticky tape 1 respectively along the direction of motion of basement membrane 2 on the upper surface from type membrane 4, here laminating mode divide into two kinds: the first mode is that a release film 4 is firstly attached to one side of a diffusion film 3, then a black single-sided adhesive tape 1 is attached to the release film 4 on the side, then the release film 4 is attached to the other side of the diffusion film 3, and then the black single-sided adhesive tape 1 is attached to the release film 4 on the side; the second mode is that the release films 4 are respectively attached to two sides of the diffusion film 3, and then the black single-sided adhesive tape 1 is respectively attached to the release films 4; the release film 4 comprises a first release film attaching area 41 close to the side edge of the diffusion film 3 and a second release film attaching area 42 far away from the side edge of the diffusion film 3, the black single-sided tape 1 comprises a first black single-sided tape attaching area 11 close to the side edge of the diffusion film 3 and a second black single-sided tape attaching area 12 far away from the side edge of the diffusion film 3, so that the adhesive surface of the first black single-sided tape attaching area 11 is attached to the diffusion film 3, the adhesive surface of the second black single-sided tape attaching area 12 is attached to the upper surface of the first release film attaching area 41, a first composite film formed by superposition as shown in fig. 3 and fig. 4 is formed, the position A in fig. 4 is the cutting position of the first cutter 71, and the position B is the cutting position of the second cutter 91;
step two, cutting for the first time:
cutting the inner side 13 of the black single-sided adhesive tape by a first die cutting machine 7: as shown in fig. 5, repeated cutting is performed vertically downward in parallel to the moving direction of the base film 2 by a first cutter 71 in parallel to the moving direction of the base film 2 at a position a in fig. 4 from the upper surface of the second attaching region 12 of the black single-sided tape to the lower surface of the second attaching region 12 of the black single-sided tape;
step three, removing waste materials for the first time: fixing a second release film attaching area 42 through a second attaching machine 8, pulling out the release film 4 from between the diffusion film 3 and the black single-sided adhesive tape 1, and removing the black single-sided adhesive tape 1 attached to the release film 4 cut in the step two together; the adhesive surface of the first attaching area 11 of the black single-sided adhesive tape is attached and fixed to the diffusion film 3, and when the release film 4 is pulled out, the first attaching area 11 of the black single-sided adhesive tape is fixed, so that the black single-sided adhesive tape 1 is prevented from being pulled out;
step four, cutting for the second time:
the diffusion film 3 is repeatedly cut by a second cutter 91 matched with the outer frame of the diffusion film 3 through a second die-cutting machine 9 according to the size of the frame of the diffusion film 3, wherein the cutting position is shown as B in the figure 4: the cutting depth is from the upper surface of the black single-sided adhesive tape 1 to the joint surface of the diffusion film 3 and the bottom film 2;
step five, removing waste materials for the second time: and (3) removing waste materials of the diffusion film 3 and the black single-sided adhesive tape 1 outside the frame of the diffusion film 3 in the fourth step by using a third laminator 10 to form a second composite film as shown in fig. 7.
Step six, second laminating: after the fifth step is completed, the third laminator 10 laminates the mesh film 5 on the diffusion film 3 along the moving direction of the base film 2, forming a finished product as shown in fig. 8.
Wherein, in the step one, the black single-sided adhesive tape 1 on both sides of the diffusion film 3 is a black single-sided adhesive tape 1 with the thickness of 0.01mm on one side, and a black single-sided adhesive tape 1 with the thickness of 0.1mm or 0.15mm on the other side.
When the diffusion film is used, the reticular membrane 5 is removed, the diffusion film with the black single-sided adhesive tape attached to the upper and lower sides is taken down for use, wherein the black single-sided adhesive tape used on the two sides is different, one side is the black single-sided adhesive tape 1 with the thickness of 0.01mm, and the other side is the black single-sided adhesive tape 1 with the thickness of 0.1mm or 0.15 mm.
In light of the foregoing description of preferred embodiments according to the invention, many modifications and variations can be made by the worker skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A production process of a diffusion film with two sides attached with black single-sided adhesive tapes is characterized in that: comprises the following steps of (a) carrying out,
step one, first laminating: attaching the lower surface of a diffusion film (3) and the upper surface of a bottom film (2) along the movement direction of the bottom film (2), attaching release films (4) to the two sides of the upper surface of the diffusion film (3) along the movement direction of the bottom film (2), wherein each release film (4) comprises a first attachment area (41) close to the side edge of the diffusion film (3) and a second attachment area (42) far away from the side edge of the diffusion film (3), and attaching black single-sided adhesive tapes (1) to the upper surfaces of the release films (4) at the two sides along the movement direction of the bottom film (2), wherein each black single-sided adhesive tape (1) comprises a first attachment area (11) close to the side edge of the diffusion film (3) and a second attachment area (12) far away from the side edge of the diffusion film (3), so that the adhesive surface of the first attachment area (11) of each black single-sided adhesive tape is attached to the diffusion film (3), the adhesive surface of the second attaching area (12) of the black single-sided adhesive tape is attached to the upper surface of the first attaching area (41) of the release film;
step two, cutting for the first time:
cutting the inner side (13) of the black single-sided adhesive tape: cutting vertically downwards along the moving direction parallel to the bottom film (2) by a cutter, wherein the cutting depth is from the upper surface of the second attaching area (12) of the black single-sided adhesive tape to the lower surface of the second attaching area (12) of the black single-sided adhesive tape;
step three, removing waste materials for the first time: fixing a second laminating area (42) of the release film through equipment, pulling out the release film (4) from between the diffusion film (3) and the black single-sided adhesive tape (1), and removing the black single-sided adhesive tape (1) laminated on the release film (4) cut in the step two together;
step four, cutting for the second time:
cutting the diffusion film (3) according to the size of the frame of the diffusion film (3): the cutting depth is from the upper surface of the black single-sided adhesive tape (1) to the joint surface of the diffusion film (3) and the bottom film (2);
step five, removing waste materials for the second time: and (3) removing the waste materials of the diffusion film (3) and the black single-sided adhesive tape (1) outside the frame of the diffusion film (3) in the fourth step.
2. The process for producing a diffuser film having a black, single-sided tape applied to both sides thereof according to claim 1, wherein: further comprises the steps of sixth laminating: the net grain film (5) is attached to the diffusion film (3) along the moving direction of the bottom film (2).
3. The process for producing a diffuser film having a black, single-sided tape applied to both sides thereof according to claim 1, wherein: in the first step, one side of the black single-sided adhesive tape (1) on the two sides of the diffusion film (3) is the black single-sided adhesive tape (1) with the thickness of 0.01mm, and the other side of the black single-sided adhesive tape (1) with the thickness of 0.1mm or 0.15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157092.2A CN108407322B (en) | 2018-02-24 | 2018-02-24 | Production process of diffusion film with two sides attached with black single-sided adhesive tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157092.2A CN108407322B (en) | 2018-02-24 | 2018-02-24 | Production process of diffusion film with two sides attached with black single-sided adhesive tape |
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| Publication Number | Publication Date |
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| CN108407322A CN108407322A (en) | 2018-08-17 |
| CN108407322B true CN108407322B (en) | 2020-04-21 |
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| CN201810157092.2A Active CN108407322B (en) | 2018-02-24 | 2018-02-24 | Production process of diffusion film with two sides attached with black single-sided adhesive tape |
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| CN110561773B (en) * | 2019-08-19 | 2024-02-13 | 泛泰大西(常州)电子科技股份有限公司 | Production process of edge-covering hole-digging adhesive tape |
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| CN105216047A (en) * | 2014-11-17 | 2016-01-06 | 苏州达翔新材料有限公司 | A kind of without base material double faced adhesive tape waste discharge method |
| CN107498981B (en) * | 2017-07-14 | 2019-07-12 | 泛泰大西(常州)电子科技股份有限公司 | A kind of production technology of four side shading rubber belt |
| CN107443478B (en) * | 2017-07-14 | 2019-02-12 | 泛泰大西(常州)电子科技股份有限公司 | The production technology of bar shaped foam cutting part |
| CN107561603B (en) * | 2017-08-14 | 2019-02-12 | 信利半导体有限公司 | A kind of integrated method for die cutting of diaphragm |
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