CN112521883A - Manufacturing process of 3D dual-curing protective film - Google Patents
Manufacturing process of 3D dual-curing protective film Download PDFInfo
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- CN112521883A CN112521883A CN202011420921.5A CN202011420921A CN112521883A CN 112521883 A CN112521883 A CN 112521883A CN 202011420921 A CN202011420921 A CN 202011420921A CN 112521883 A CN112521883 A CN 112521883A
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- 230000001681 protective effect Effects 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 69
- 239000012790 adhesive layer Substances 0.000 claims abstract description 60
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 238000002834 transmittance Methods 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 49
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 239000010410 layer Substances 0.000 claims description 22
- 229920002313 fluoropolymer Polymers 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 10
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 10
- 229910052731 fluorine Inorganic materials 0.000 claims description 10
- 239000011737 fluorine Substances 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 9
- 239000004945 silicone rubber Substances 0.000 claims description 9
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229920002799 BoPET Polymers 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 238000002360 preparation method Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 42
- 230000000694 effects Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920002050 silicone resin Polymers 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- -1 dimethyl siloxane Chemical class 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a manufacturing process of a 3D dual-curing protective film, which comprises the following steps: step 1, manufacturing a first membrane material and a second membrane material; the first film material comprises a transparent PET protective film, a first adhesive layer, a high-transmittance PET hardened film, a double-curing adhesive layer and a first release film which are sequentially laminated from top to bottom; the second film material comprises a second release film and a second adhesive layer coated on the second release film; step 2, correspondingly feeding the first membrane material and the second membrane material into membrane compounding equipment to obtain a compound membrane material; step 3, a second stripping mechanism is arranged to tear off the second release film of the composite film material; step 4, compounding a third release film on the composite film material corresponding to the stripping surface formed in the step 3, thus obtaining a 3D double-curing protective film; the second adhesive layer and the double-curing adhesive layer can be firmly combined without PU or TPU or PET, and particularly, the protective film prepared by the preparation process effectively improves the preparation quality, precision and preparation yield and is beneficial to controlling the production cost.
Description
Technical Field
The invention relates to the technical field of protective films, in particular to a manufacturing process of a 3D dual-curing protective film.
Background
With the increasing release of full-screen mobile phones from various large mobile phone manufacturers, the screen occupation ratio is higher and higher, the full screen of the mobile phone is the development trend of the current mobile phone screen, nowadays, the edges and screens of the body of many mobile phones are designed into arc structures, such as curved-surface-screen mobile phones, and the curved-surface-screen mobile phones in the prior art are usually manufactured into 3D curved-surface protective films by forming composite films by organic silicon or acrylic glue and PET films, then heating, cooling and shaping, and then cutting and shaping through a die cutting process. However, the 3D curved surface protective film in the prior art has the problems of poor scratch resistance, poor curing strength of the whole structure, short service life and the like.
A four-layer film structure consisting of a high-transparency PET hardened film, a double-curing adhesive layer, PU or TPU or PET and an adhesive layer appears later, the structural strength is good, the scratch resistance is ideal, and the service life is long; however, for the ultrasonically unlocked screen, the high-transmittance PET hardened film, the dual-cured adhesive layer, PU or TPU or PET is suitable, and for the optically unlocked screen, the high-transmittance PET hardened film \ PET is not suitable due to light refraction generated between the high-transmittance PET hardened film and the PET, so that the protective film is suitable for the protective film of the multi-layer structure of the high-transmittance PET hardened film, the dual-cured adhesive layer, PU or TPU; when the film is manufactured, the manufacturing process is complex, and meanwhile, the film has a thicker structure and is difficult to meet the requirement of thinning the film layer; also some protective films, it has cancelled PU or TPU or PET, becomes three-layer membrane structure promptly, when actual production preparation, produces orange peel line easily, influences the preparation quality and the precision of protective film, and to the product of high quality requirement, the preparation yield is low, leads to high in production cost, is unfavorable for the popularization of this kind of protective film.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a manufacturing process of a 3D dual-curing protective film, which does not require PU, TPU or PET, and can realize the stable combination of a second adhesive layer and a dual-curing adhesive layer.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing process of a 3D dual-curing protective film comprises the following steps:
step 1, manufacturing a first membrane material and a second membrane material; wherein:
the first film material comprises a transparent PET protective film, a first adhesive layer, a high-transmittance PET hardened film, a double-curing adhesive layer and a first release film which are sequentially laminated from top to bottom; the high-transmittance PET hardened film is provided with a hardened layer and a high-transmittance PET original film; during manufacturing, coating double-curing glue on the lower side of the high-transparency PET hardened film, performing thermosetting to form a double-curing glue layer, and covering a first release film on the lower surface of the double-curing glue layer;
the second film material comprises a second release film and a second adhesive layer coated on the second release film;
step 2, correspondingly send into membrane equipment complex with first membrane material, second membrane material, before the compound station that gets into membrane equipment complex, be provided with first peeling means and tear the first membrane material from the type membrane for make: when the station is compounded, the stripping surface of the first film material and the second adhesive layer of the second film material are relatively attached; thus, obtaining a composite film material, wherein the composite film material comprises a transparent PET protective film, a first adhesive layer, a hardened layer, a high-transmittance PET original film, a double-curing adhesive layer, a second adhesive layer and a second release film which are sequentially laminated from top to bottom;
step 3, a second stripping mechanism is arranged to tear off the second release film of the composite film material;
and 4, compounding a third release film on the composite film material corresponding to the stripping surface formed in the step 3, thus obtaining the 3D dual-curing protective film.
As a preferred scheme, the second release film is a fluoroplastic release film.
As a preferred scheme, the first adhesive layer is silica gel.
Preferably, the second adhesive layer is made of a pressure-sensitive adhesive which comprises MQ silicone resin and methyl vinyl silicone rubber which are mixed.
As a preferable scheme, the fluoroplastic release film is formed by coating a fluorine coating on a PET film.
As a preferable scheme, the material of the fluorine coating is that a hydrophilic group is added into a fluorine release agent.
As a preferred scheme, the first release film is a fluoroplastic release film.
Compared with the prior art, the transparent PET protective film, the first adhesive layer, the high-transmittance PET hardened film, the double-curing adhesive layer and the first release film are mainly used as first film materials, and the second release film and the second adhesive layer coated on the second release film form a second film material; the second release film is used for bearing the second adhesive layer, the first film material and the second film material are conveyed into film compounding equipment for compounding, and before the film enters a compounding station of the film compounding equipment, the first release film is torn off, the second release film is torn off, and the stripping surfaces of the first film material and the second film material are oppositely attached; therefore, the second adhesive layer and the double-curing adhesive layer can be stably combined without PU or TPU or PET, and particularly, the protective film prepared by the preparation process effectively improves the preparation quality, precision and preparation yield and is beneficial to controlling the production cost.
Secondly, the second adhesive layer is preferably a pressure-sensitive adhesive which is formed by mixing MQ silicon resin and methyl vinyl silicone rubber, so that the adhesive force is improved;
and the second release film is a fluoroplastic release film, and particularly, hydrophilic groups are added into the fluoroplastic release agent, so that the water drop angle of the fluoroplastic coating can be controlled to be about 100 degrees, and the coating effect of the second adhesive layer can be greatly improved.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic cross-sectional view of a 3D dual-cure protective film according to an embodiment of the present invention;
FIG. 2 is a schematic view of a manufacturing process flow of an embodiment of the present invention.
The attached drawings indicate the following:
10. transparent PET protective film 20, first viscose layer
30. Hardened layer 40, high-transmittance PET original film
50. Double-curing glue layer 60 and second adhesive layer
70. The third release layer
1. First membrane material 11 and first release film
2. The second film material 21 and the second release film
3. And (4) compounding a film material and a 3D dual-curing protective film.
Detailed Description
Referring to fig. 1 and 2, a structure and a manufacturing process of an embodiment of the invention are shown.
A manufacturing process of a 3D dual-curing protective film comprises the following steps:
step 1, manufacturing a first membrane material 1 and a second membrane material 2; wherein:
the first film material 1 comprises a transparent PET protective film, a first adhesive layer, a high-transmittance PET hardened film, a double-curing adhesive layer and a first release film which are sequentially laminated from top to bottom; the high-transmittance PET hardened film is provided with a hardened layer and a high-transmittance PET original film; during manufacturing, coating double-curing glue on the lower side of the high-transparency PET hardened film, performing thermosetting to form a double-curing glue layer, and covering the lower surface of the double-curing glue layer with a first release film 11;
the second film material 2 comprises a second release film 21 and a second adhesive layer coated on the second release film 21;
step 2, correspondingly send into membrane equipment complex with first membrane material 1, second membrane material 2, before the compound station that gets into membrane equipment complex, be provided with first peeling means and tear first 11 from type membrane of first membrane material for make: when in a compounding station, the stripping surface of the first film material 1 and the second adhesive layer of the second film material 2 are relatively attached; thus, obtaining a composite film material 3, wherein the composite film material 3 comprises a transparent PET protective film 10, a first adhesive layer 20, a hardened layer 30, a high-transmittance PET original film 40, a double-curing adhesive layer 50, a second adhesive layer 60 and a second release film 21 which are sequentially laminated from top to bottom;
step 3, a second stripping mechanism is arranged to tear off the second release type 21 film of the composite film material;
and 4, compounding a third release film 70 on the composite film material corresponding to the stripping surface formed in the step 3, thus obtaining the 3D dual-curing protective film 4.
Preferably, the second release film 21 is a fluoroplastic release film.
Preferably, the first adhesive layer is silica gel.
Preferably, the second adhesive layer is made of a pressure-sensitive adhesive and is formed by mixing MQ silicon resin and methyl vinyl silicone rubber. When the MQ silicon resin and the methyl vinyl silicone rubber are mixed, a synthetic reaction can be carried out, the cohesive strength of the pressure-sensitive adhesive is greatly improved, and the adhesive has good adhesive force to a base material. The MQ silicone resin is a silicone resin consisting of a monofunctional Si-O unit (M unit) and a tetrafunctional Si-O unit (SiQZ is called Q unit for short), and has a compact sphere with a double-layer structure. Generally, MQ silicone resin is powder and is not easy to disperse if used directly. The methyl vinyl silicone rubber is vinyl silicone rubber for short, and is prepared by copolymerizing dimethyl siloxane and a small amount of vinyl siloxane, wherein the vinyl content is generally 0.1-0.3 percent (mole fraction). The introduction of a small amount of unsaturated vinyl groups greatly improves the vulcanization process and the properties of finished products, particularly the heat aging resistance and the high-temperature compression deformation resistance. The content of methylvinylsiloxane units has a great influence on the vulcanization effect and the heat resistance of the vulcanized rubber, the effect is not significant if the content is too small, and the heat resistance of the vulcanized rubber is reduced if the content is too large (up to 0.5 percent (mole fraction)). In actual proportioning, the amounts of MQ silicone resin and methyl vinyl silicone rubber can be freely controlled, for example: the molecular weight and the vinyl content of the AF screen can be considered, after reaction, partial consumption of the AF screen is realized to achieve the effect of chain extension, and the stripping force of the AF screen can be obviously improved. After the reaction is finished, the resin is diluted after high-temperature reduction, and simultaneously the requirements of the stability of the peeling force and the convenience for coating are met.
In the embodiment, the groups such as epoxy group and alkoxy group are less than 1 ten-thousand of the total mass, so that the surface polarity of the pressure-sensitive adhesive can be increased, and the stripping force to the AF screen is improved; meanwhile, the content of vinyl groups in the main chain of the pressure-sensitive adhesive is improved by 50 percent, the crosslinking density of the pressure-sensitive adhesive after curing can be improved, and the surface structure of the pressure-sensitive adhesive after curing is more compact, so that the aim of reducing the film tearing force with the release film to be less than 1 g/25mm is fulfilled.
Through detection and analysis, the performance of the second adhesive layer of the embodiment is as follows: the AF peeling force is more than 15 g/25mm, and the film tearing force with the release film is less than 1 g/25 mm.
Preferably, the fluoroplastic release film is formed by coating a fluorine coating on a PET (polyethylene terephthalate) film, and the fluorine coating is made of a fluorine release agent added with a hydrophilic group, so that the water drop angle of the fluorine coating is controlled to be about 100 degrees, and the coating effect of the second adhesive layer can be greatly improved.
Likewise, the first release film is preferably a fluoroplastic release film.
It should be added that: when the first film material is manufactured, firstly, hardening liquid is selected, and the hardening liquid is coated on the upper surface of the high-transmittance PET original film to form a hardening layer, so that a high-transmittance PET hardening film is obtained; simultaneously, selecting silica gel, coating the silica gel on the lower surface of the transparent PET protective film to form a first adhesive layer, and then coating the transparent PET protective film and the first adhesive layer on the upper surface of the high-transmittance PET hardened film, thus obtaining a semi-finished film material A comprising the transparent PET protective film, the first adhesive layer and the high-transmittance PET hardened film which are sequentially laminated from top to bottom; therefore, the double curing adhesive coating operation is performed on the basis of the semi-finished film material A.
In summary, the design of the present invention is characterized in that the transparent PET protective film, the first adhesive layer, the high-transmittance PET hardened film, the dual-curing adhesive layer, and the first release film are mainly used as the first film material, and the second release film and the second adhesive layer coated on the second release film are used as the second film material; the second release film is used for bearing the second adhesive layer, the first film material and the second film material are conveyed into film compounding equipment for compounding, and before the film enters a compounding station of the film compounding equipment, the first release film is torn off, the second release film is torn off, and the stripping surfaces of the first film material and the second film material are oppositely attached; therefore, the second adhesive layer and the double-curing adhesive layer can be stably combined without PU or TPU or PET, and particularly, the protective film prepared by the preparation process effectively improves the preparation quality, precision and preparation yield and is beneficial to controlling the production cost.
Secondly, the second adhesive layer is preferably a pressure-sensitive adhesive which is formed by mixing MQ silicon resin and methyl vinyl silicone rubber, so that the adhesive force is improved;
and the second release film is a fluoroplastic release film, and particularly, hydrophilic groups are added into the fluoroplastic release agent, so that the water drop angle of the fluoroplastic coating can be controlled to be about 100 degrees, and the coating effect of the second adhesive layer can be greatly improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (7)
1. A manufacturing process of a 3D dual-curing protective film is characterized by comprising the following steps: the method comprises the following steps:
step 1, manufacturing a first membrane material and a second membrane material; wherein:
the first film material comprises a transparent PET protective film, a first adhesive layer, a high-transmittance PET hardened film, a double-curing adhesive layer and a first release film which are sequentially laminated from top to bottom; the high-transmittance PET hardened film is provided with a hardened layer and a high-transmittance PET original film; during manufacturing, coating double-curing glue on the lower side of the high-transparency PET hardened film, performing thermosetting to form a double-curing glue layer, and covering a first release film on the lower surface of the double-curing glue layer;
the second film material comprises a second release film and a second adhesive layer coated on the second release film;
step 2, correspondingly send into membrane equipment complex with first membrane material, second membrane material, before the compound station that gets into membrane equipment complex, be provided with first peeling means and tear the first membrane material from the type membrane for make: when the station is compounded, the stripping surface of the first film material and the second adhesive layer of the second film material are relatively attached; thus, obtaining a composite film material, wherein the composite film material comprises a transparent PET protective film, a first adhesive layer, a hardened layer, a high-transmittance PET original film, a double-curing adhesive layer, a second adhesive layer and a second release film which are sequentially laminated from top to bottom;
step 3, a second stripping mechanism is arranged to tear off the second release film of the composite film material;
and 4, compounding a third release film on the composite film material corresponding to the stripping surface formed in the step 3, thus obtaining the 3D dual-curing protective film.
2. The manufacturing process of the 3D dual-curing protective film according to claim 1, wherein: the second release film is a fluoroplastic release film.
3. The manufacturing process of the 3D dual-curing protective film according to claim 1, wherein: the first adhesive layer is silica gel.
4. The manufacturing process of the 3D dual-curing protective film according to claim 1, wherein: the second adhesive layer is made of pressure-sensitive adhesive and comprises mixed MQ silicon resin and methyl vinyl silicone rubber.
5. The process for manufacturing a 3D dual-curing protective film according to any one of claims 2 to 4, wherein: the fluoroplastic release film is formed by coating a PET film with a fluorine coating.
6. The manufacturing process of the 3D dual-curing protective film according to claim 5, wherein: the material of the fluorine coating is that a hydrophilic group is added into a fluorine release agent.
7. The manufacturing process of the 3D dual-curing protective film according to claim 1, wherein: the first release film is a fluoroplastic release film.
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| CN202011420921.5A CN112521883A (en) | 2020-12-08 | 2020-12-08 | Manufacturing process of 3D dual-curing protective film |
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| CN202011420921.5A CN112521883A (en) | 2020-12-08 | 2020-12-08 | Manufacturing process of 3D dual-curing protective film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115256541A (en) * | 2022-07-18 | 2022-11-01 | 恒玮电子材料(昆山)有限公司 | A die-cutting process for the size control of the zip-up rubber Mylar area |
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| CN101805558A (en) * | 2009-02-17 | 2010-08-18 | 东丽世韩有限公司 | Anti-static polyester film with improved coating defect and manufacturing method thereof |
| CN108146092A (en) * | 2017-09-27 | 2018-06-12 | 深圳市锦兆天电子科技有限公司 | Ultra-thin photomask silica gel face glue transfer printing process |
| CN111959055A (en) * | 2020-08-24 | 2020-11-20 | 东莞市赛越新材料科技有限公司 | Double-curing protective film and manufacturing process thereof |
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2020
- 2020-12-08 CN CN202011420921.5A patent/CN112521883A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805558A (en) * | 2009-02-17 | 2010-08-18 | 东丽世韩有限公司 | Anti-static polyester film with improved coating defect and manufacturing method thereof |
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