CN107936860B - Flexible full-wrapping soft film and preparation method thereof - Google Patents
Flexible full-wrapping soft film and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of protective films, in particular to a flexible fully-wrapped soft film and a preparation method thereof. The flexible full-wrapping soft film disclosed by the invention has smooth handfeel and large stripping force, can be used for fully wrapping a curved screen, has better rebound resilience and self-repairing effect, can be used for automatically repairing scratch marks, and prolongs the service life of the flexible full-wrapping soft film. The preparation method is simple, convenient to operate and control, high in production efficiency, low in production cost, high in yield of the prepared product, stable in quality and suitable for large-scale industrial production, and the traditional production process is simplified.
Description
Technical Field
The invention relates to the technical field of protective films, in particular to a flexible full-wrapping soft film and a preparation method thereof.
Background
With the popularization of electronic devices with 2.5D and 3D curved edges on the screen and the development of flexible mobile electronic terminal devices, the screen needs to be protected by a protective film, and most of the existing protective films have better flexibility, but the softer the protective film, the more easily the protective film is scratched, and the scratch marks affect not only the appearance of the protective film but also the normal use of the protective film. Meanwhile, the current protective film is low in adhesive force and not firm in adhesion, so that the protective film easily falls off from a screen, the edge of the protective film is prone to warping, white edges and the like along with the increase of the service time of the protective film, the service effect is affected, and the service life is short.
In addition, in the existing protective film preparation process, an isolating film is required to be covered in the production and rolling process to prevent the glue layers from being adhered together, so that the phenomena of bubble printing, wrinkle and the like are caused, and the yield of the protective film is influenced.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the flexible full-wrapping soft film which is smooth in hand feeling, large in stripping force, good in flexibility, capable of wrapping a curved screen comprehensively, good in rebound resilience and self-repairing effect and capable of automatically repairing a scratch mark.
The invention also aims to provide a preparation method of the flexible full-wrapping soft film, which is simple, convenient to operate and control, high in production efficiency, low in production cost, high in yield of the prepared product, stable in quality and suitable for large-scale industrial production, and the traditional production process is simplified.
One of the purposes of the invention is realized by the following technical scheme: the utility model provides a flexible soft membrane of wrapping entirely, includes from last to the rete, service layer and the peel ply of laminating in proper order down, the rete includes from last to the substrate layer and the cuticle glue film of laminating in proper order down, the service layer includes from last to the self-repairing layer, flexible soft rete and the use glue film of laminating in proper order down, the lower surface of cuticle glue film with the upper surface laminating on self-repairing layer, the lower surface of using the glue film with the upper surface laminating of peel ply.
The flexible full-wrapping soft film disclosed by the invention has the advantages of smooth hand feeling, large peeling force and better flexibility, can be used for comprehensively wrapping a curved screen, and meanwhile, by adopting the using layer with better rebound resilience and self-repairing effect, the scratch mark can be automatically repaired, the scratch mark is prevented from influencing the appearance and the using effect of the flexible full-wrapping soft film, and the service life of the flexible full-wrapping soft film is prolonged.
Preferably, the substrate layer is a PET film with the thickness of 23-100 μm; the protective film adhesive layer is an organic silicon pressure-sensitive adhesive layer with the thickness of 5-20 mu m and the stripping force of 1-10gf/25 mm. According to the invention, the PET film is adopted as the type of the substrate layer, the thickness of the substrate layer is strictly controlled, the PET film has better dimensional stability, toughness and flexibility, and can be stably bonded with the protective film glue layer, so that the prepared flexible full-wrapping soft film has better flexibility and bonding stability, and all layers are not easy to fall off; more preferably, the substrate layer is a PET film with the thickness of 50-75 μm; more preferably, the substrate layer is a PET film having a thickness of 50 μm or 75 μm. According to the invention, the organic silicon pressure-sensitive adhesive is used as the material of the protective film adhesive layer, the thickness and the peeling force of the protective film adhesive layer are strictly controlled, the viscosity and the peeling force are better, the base material layer and the using layer can be stably bonded, and all layers are not easy to fall off; more preferably, the protective film adhesive layer is a silicone pressure sensitive adhesive having a thickness of 10 to 15 μm and a peeling force of 2 to 5gf/25 mm.
Preferably, the self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
according to the invention, the self-repairing layer is prepared by adopting the raw materials, the dosage of each raw material is strictly controlled, the prepared self-repairing layer has better flexibility and rebound property, the self-repairing layer achieves the effect of instantly repairing scratches by utilizing the rebound property, and meanwhile, the prepared flexible fully-wrapped soft film has better smooth touch feeling in the use and touch process and can reduce the adhesion property among self-repairing resin raw materials by adopting the hand feeling agent, so that a finished product is directly rolled without being covered with a PET isolating film and then rolled in the process of producing the flexible fully-wrapped soft film (after the self-repairing layer is formed by curing), the production process is simplified, the production cost is reduced, and the excellent rate of the finished product is improved.
Preferably, the polyol polyester resin is at least one of acrylic polyol resin and linear hydroxyl polyester; the curing agent is aliphatic isocyanate or/and polyisocyanate; the solvent is ethyl acetate.
By adopting the polyol polyester resin, the invention has better rebound property, glossiness, weather resistance, wear resistance and flexibility; more preferably, the polyol polyester resin is a mixture of acrylic polyol resin and linear hydroxy polyester in a weight ratio of 1.6-2.2: 1; or more preferably, the polyol-based polyester resin is an acrylic polyol resin. By adopting the curing agent, the curing agent has good curing performance, better flexibility and durability, is not easy to yellow, and can be matched with other raw materials to prepare a self-repairing layer with better adhesive force, so that the prepared flexible fully-wrapped soft film has better stability, and the layers are not easy to fall off; more preferably, the curing agent is an aliphatic isocyanate; or more preferably, the curing agent is a mixture of aliphatic isocyanate and polyisocyanate in a weight ratio of 2.5-3.5: 1. According to the invention, the ethyl acetate is used as the solvent, so that the cost is low, the solubility is good, the self-repairing layer can be matched with other raw materials to act, the prepared self-repairing layer has better flexibility and rebound resilience, the quality stability is good, scratch marks can be repaired, the quality of the flexible full-wrapping soft film is improved, and the service life is prolonged.
Preferably, the hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is at least one of organic silicon modified polymethyl methacrylate, polyether modified polysiloxane and polydimethylsiloxane. By adopting the above types as the hand feeling agent, the smooth touch feeling of the flexible fully-wrapped flexible film in the using process can be improved, the adhesion characteristic among the raw materials of the self-repairing resin is reduced, and further the flexible fully-wrapped flexible film can be directly rolled in the production process (after a self-repairing layer is formed by curing) without being covered with a layer of isolating film for rolling, so that the production process is simplified, the production cost is reduced, and the excellent rate of finished products is improved; more preferably, the hand feeling agent is organic silicon modified polymethyl methacrylate, polyether modified polysiloxane and polydimethylsiloxane in a weight ratio of 1.2-1.8: 2.5-3.5: 1; or more preferably, the hand feeling agent is polyether modified polysiloxane.
More preferably, the self-repairing resin is a mixture of acrylic polyol resin, aliphatic isocyanate, polyether modified polysiloxane and ethyl acetate in a weight ratio of 90-110:15-25:1-5: 90-110.
Preferably, the thickness of the self-repairing layer is 5-40 μm; the flexible soft film layer is a flexible polyurethane modified organic silicon resin layer, a rubber layer, a TPU film or a PET film; the using adhesive layer is an organic silicon pressure-sensitive adhesive resin layer or a polyurethane pressure-sensitive adhesive resin layer with the thickness of 20-60 mu m and the peeling force of 50-200gf/25 mm; the stripping layer is a fluoroplastic release film, a non-silicon release film or a silicon oil release film with the thickness of 36-75 mu m and the release force of 5-10gf/25 mm.
According to the invention, the thickness of the self-repairing layer is strictly controlled, and is the thickness of the cured dry film of the self-repairing layer, so that the flexible full-wrapping soft film has better flexibility and rebound resilience, and further the effect of repairing scratch marks of the flexible full-wrapping soft film is realized; more preferably, the thickness of the self-repairing layer is 20 to 30 μm.
According to the invention, the flexible polyurethane modified organic silicon resin, rubber, TPU film or PET film is used as the flexible soft film layer, so that the flexible soft film layer has better flexibility and rebound resilience, the softer the flexibility is, the easier the curved screen can be completely wrapped, but the softer the flexible soft film layer is, the easier the curved screen can be scratched, therefore, the self-repairing layer is coated on the surface of the flexible soft film layer, so that the effect of automatically repairing scratches can be achieved, and meanwhile, different types of flexible soft film layers have different thicknesses; wherein the thickness of the flexible polyurethane modified organic silicon resin is 80-200 μm, preferably, the thickness of the flexible polyurethane modified organic silicon resin is 100-150 μm; the thickness of the rubber is 80-200 μm, preferably, the thickness of the rubber is 100-150 μm; the thickness of the TPU film is 75-200 μm, preferably 75 μm, 100 μm, 125 μm, 150 μm, 200 μm; the thickness of the PET film is 5-30 μm, and preferably, the thickness of the PET film is 10-25 μm. More preferably, the invention is preferably from flexible polyurethane modified silicone resin, rubber, TPU film with elasticity, and PET film.
The adhesive layer is adopted, the thickness and the peeling force of the adhesive layer are strictly controlled, the adhesive force is good, the flexible film layer and the peeling layer can be stably bonded, the layers of the manufactured flexible full-packaging soft film are not easy to fall off, the stability is good, the peeling force is large, the adhesive layer can be prevented from falling off from a screen, and the phenomena of edge tilting, white edge and the like of the flexible full-packaging soft film after long service time can be avoided.
According to the invention, by adopting the stripping layer of the type and strictly controlling the thickness and the release force of the stripping layer, the prepared flexible fully-wrapped soft film can be easily attached to the curved screen, so that the flexible fully-wrapped soft film can completely wrap the curved screen, and the phenomena of tilting, white edges and the like easily occurring at the edge of the flexible fully-wrapped soft film are avoided; more preferably, when the adhesive layer adopts an organic silicon pressure-sensitive adhesive resin layer, the stripping layer adopts a fluoroplastic release film and a non-silicon release film; when the adhesive layer adopts a polyurethane pressure-sensitive adhesive resin layer, the stripping layer adopts a silicone oil release film.
The second purpose of the invention is realized by the following technical scheme: a preparation method of a flexible full-wrapping film comprises the following steps when the flexible soft film layer is a flexible polyurethane modified organic silicon resin layer or a rubber layer:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after secondary curing, coating flexible polyurethane modified organic silicon resin or rubber on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
The preparation method of the flexible fully-wrapped soft film is simple, the operation and the control are convenient, the coating mode is scraper coating, the isolating film is covered after the preparation of the protective film glue layer and the flexible soft film layer, the tiny particles of external dust can be isolated, the damage of the tiny particles of dust and the like to the quality of the flexible fully-wrapped soft film is avoided, the excellent rate of finished products is improved, and the adopted isolating film is a PET film with the thickness of 40-60 mu m; meanwhile, the self-repairing resin is coated on the surface of the protective film adhesive layer, the flexibility and resilience of the self-repairing resin realize the effect of automatically repairing scratches, so that the prepared flexible fully-wrapped flexible film has better flexibility and self-repairing effect, and the hand feeling agent in the self-repairing resin can reduce the adhesion characteristic among raw materials, so that the flexible fully-wrapped flexible film can be directly rolled without being covered with an isolation film and then rolled after being cured for the second time to form a self-repairing layer, thereby simplifying the traditional production process, reducing the production cost, improving the production efficiency and the excellent rate of products, having stable quality and being suitable for large-scale industrial production.
Preferably, in the step (1), the first curing is thermal curing, the curing temperature is 140-; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 60-90 s; the third curing is thermal curing, the curing temperature is 130-170 ℃, and the curing time is 60-90 s; in the step (3), the fourth curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-90 s.
The four times of curing are all performed by thermal curing, so that each layer of raw materials can form a film in a hot melting mode, the curing forming degree is uniform, the curing efficiency is high, and the prepared flexible full-wrapping soft film has better softness, rebound resilience and self-repairing effect; and by strictly controlling the curing temperature and the curing time of the first thermosetting, the second thermosetting, the third thermosetting and the fourth thermosetting, all layers can be cured fully and uniformly, the quality of all layers cannot be damaged, and the prepared flexible full-wrapping soft film has better softness, rebound resilience and self-repairing effect.
Or, the preparation method of the flexible full-wrapping film comprises the following steps when the flexible soft film layer is a TPU film or a PET film:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a flexible full-wrapping soft film: taking a TPU film or a PET film, coating self-repairing resin on one surface of the TPU film or the PET film, forming a self-repairing layer after secondary curing, tearing off the isolating film from the protecting film layer prepared in the step (1), and covering the isolating film on the surface of the self-repairing layer; coating the other side of the TPU film or the PET film with using layer glue, forming a using glue layer after third curing, and then covering the surface of the using glue layer with a stripping layer to obtain the flexible fully-wrapped soft film.
The preparation method of the flexible fully-wrapped soft film is simple, the operation and the control are convenient, the coating mode is scraper coating, the isolating film is covered after the film adhesive layer is prepared, external dust tiny particles can be isolated, the damage of the dust tiny particles to the quality of the flexible fully-wrapped soft film is avoided, the excellent rate of finished products is improved, and the adopted isolating film is a PET film with the thickness of 40-60 mu m; meanwhile, the self-repairing resin is coated on the surface of the protective film adhesive layer, the flexibility and resilience of the self-repairing resin realize the effect of automatically repairing scratches, so that the prepared flexible fully-wrapped flexible film has better flexibility and self-repairing effect, and the hand feeling agent in the self-repairing resin can reduce the adhesion characteristic among raw materials, so that the flexible fully-wrapped flexible film can be directly rolled without being covered with an isolation film and then rolled after being cured for the second time to form a self-repairing layer, thereby simplifying the traditional production process, reducing the production cost, improving the production efficiency and the excellent rate of products, having stable quality and being suitable for large-scale industrial production.
Preferably, in the step (1), the first curing is thermal curing, the curing temperature is 140-; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 60-90 s; the third curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-90 s.
The three times of curing are all performed by thermal curing, so that each layer of raw materials can form a film in a hot melting mode, the curing molding degree is uniform, the curing efficiency is high, and the prepared flexible full-wrapping soft film has better softness, rebound resilience and self-repairing effect; and by strictly controlling the curing temperature and the curing time of the first thermosetting, the second thermosetting and the third thermosetting, all layers can be cured fully and uniformly, the quality of all layers cannot be damaged, and the prepared flexible full-wrapping film has better softness, rebound resilience and self-repairing effect.
The invention has the beneficial effects that: the flexible full-wrapping soft film disclosed by the invention has the advantages of smooth hand feeling, large stripping force and better rebound resilience and self-repairing effect, the adopted flexible soft grinding layer has the characteristic of good flexibility, the curved screen can be completely wrapped, the adopted self-repairing layer can automatically repair scratch marks, the scratch marks are prevented from influencing the appearance and the using effect of the flexible full-wrapping soft film, and the service life of the flexible full-wrapping soft film is prolonged.
The preparation method of the flexible full-wrapping soft film is convenient and simple to operate and control, the soft film is directly rolled after being made into the self-repairing layer to carry out the next step, the traditional production process is simplified, the production cost is reduced, the production efficiency and the excellent rate of products are improved, the quality is stable, and the preparation method is suitable for large-scale industrial production.
Drawings
FIG. 1 is a schematic cross-sectional view of a flexible, fully enrobed film of the present invention;
FIG. 2 is a schematic cross-sectional view of a flexible, fully-enrobed film made in accordance with comparative example 2 of the present invention.
The reference signs are: 1-protective film layer, 11-base material layer, 12-protective film glue layer, 2-use layer, 21-self-repairing layer, 22-flexible soft film layer, 23-use glue layer and 3-stripping layer.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-2, which are not intended to limit the present invention.
Example 1
See fig. 1, a flexible soft membrane of wrapping entirely, include from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 23 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 5 μm and a peel force of 1gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is linear hydroxyl polyester; the curing agent is polyisocyanate; the solvent is ethyl acetate.
The hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is polydimethylsiloxane.
The thickness of the self-repairing layer 21 is 5 μm; the flexible soft film layer 22 is a rubber layer with the thickness of 80 μm; the use adhesive layer 23 is a silicone pressure-sensitive adhesive resin layer having a thickness of 20 μm and a peel force of 50gf/25 mm; the stripping layer 3 is a fluoroplastic release film with the thickness of 36 mu m and the release force of 5gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after second curing, coating rubber on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
In the step (1), the first curing is thermal curing, the curing temperature is 140 ℃, and the curing time is 75 s; in the step (2), the second curing is thermal curing, the curing temperature is 80 ℃, and the curing time is 90 s; the third curing is thermal curing, the curing temperature is 130 ℃, and the curing time is 90 s; in the step (3), the fourth curing is thermal curing, the curing temperature is 140 ℃, and the curing time is 90 s.
Example 2
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 35 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 8 μm and a peel force of 2gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is linear hydroxyl polyester; the curing agent is polyisocyanate; the solvent is ethyl acetate.
The hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is organic silicon modified polymethyl methacrylate.
The thickness of the self-repairing layer 21 is 10 μm; the flexible soft film layer 22 is a TPU film with the thickness of 75 μm; the using glue layer 23 is a polyurethane pressure-sensitive glue resin layer with the thickness of 30 mu m and the peeling force of 90gf/25 mm; the peeling layer 3 is a silicone oil release film with a thickness of 43 μm and a release force of 6gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a flexible full-wrapping soft film: taking a TPU film, coating self-repairing resin on one surface of the TPU film, forming a self-repairing layer after secondary curing, tearing off the isolating film from the protective film layer prepared in the step (1), and covering the isolating film on the surface of the self-repairing layer; and coating a using layer glue on the other side of the TPU film, forming a using glue layer after third curing, and then covering a stripping layer on the surface of the using glue layer to obtain the flexible fully-wrapped film.
In the step (1), the first curing is thermal curing, the curing temperature is 140 ℃, and the curing time is 75 s; in the step (2), the second curing is thermal curing, the curing temperature is 80 ℃, and the curing time is 90 s; the third curing is thermal curing, the curing temperature is 140 ℃, and the curing time is 90 s.
Example 3
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 50 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 11 μm and a peel force of 3gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is acrylic acid polyalcohol resin; the curing agent is aliphatic isocyanate; the solvent is ethyl acetate.
The hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is polyether modified polysiloxane.
The thickness of the self-repairing layer 21 is 20 μm; the flexible soft film layer 22 is made of flexible polyurethane modified organic silicon resin with the thickness of 80 mu m; the use adhesive layer 23 is a silicone pressure-sensitive adhesive resin layer with a thickness of 35 μm and a peel force of 125gf/25 mm; the release layer 3 is a non-silicon release film having a thickness of 50 μm and a release force of 7gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after second curing, coating flexible polyurethane modified organic silicon resin on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
In the step (1), the first curing is thermal curing, the curing temperature is 155 ℃, and the curing time is 68 s; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 75 s; the third curing is thermal curing, the curing temperature is 130-170 ℃, and the curing time is 75 s; in the step (3), the fourth curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 75 s.
Example 4
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 75 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 14 μm and a peel force of 5gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is acrylic acid polyalcohol resin; the curing agent is aliphatic isocyanate; the solvent is ethyl acetate.
The hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is polyether modified polysiloxane.
The thickness of the self-repairing layer 21 is 25 μm; the flexible soft film layer 22 is a PET film with the thickness of 5 μm; the using glue layer 23 is a polyurethane pressure-sensitive glue resin layer with the thickness of 40 mu m and the peeling force of 150gf/25 mm; the peeling layer 3 is a silicone oil release film with the thickness of 60 mu m and the release force of 8gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a flexible full-wrapping soft film: taking a PET film, coating self-repairing resin on one surface of the PET film, forming a self-repairing layer after secondary curing, tearing off the isolation film from the protective film layer prepared in the step (1), and covering the surface of the self-repairing layer; coating a using layer glue on the other surface of the PET film, forming a using glue layer after third curing, and then covering a stripping layer on the surface of the using glue layer to obtain the flexible full-wrapping film.
In the step (1), the first curing is thermal curing, the curing temperature is 155 ℃, and the curing time is 68 s; in the step (2), the second curing is thermosetting, the curing temperature is 105 ℃, and the curing time is 75 s; the third curing is thermal curing, the curing temperature is 155 ℃, and the curing time is 75 s.
Example 5
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 90 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 17 μm and a peel force of 8gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is a mixture of acrylic polyalcohol resin and linear hydroxyl polyester in a weight ratio of 1.6: 1; the curing agent is a mixture of aliphatic isocyanate and polyisocyanate in a weight ratio of 2.5: 1; the solvent is ethyl acetate.
The hand feeling agent is prepared from organic silicon modified polymethyl methacrylate, polyether modified polysiloxane and polydimethylsiloxane in a weight ratio of 1.2: 3.5: 1.
The thickness of the self-repairing layer 21 is 30 μm; the flexible soft film layer 22 is flexible polyurethane modified organic silicon resin with the thickness of 200 mu m; the use adhesive layer 23 is a silicone pressure-sensitive adhesive resin layer having a thickness of 50 μm and a peel force of 175gf/25 mm; the stripping layer 3 is a fluoroplastic release film with the thickness of 68 mu m and the release force of 9gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after secondary curing, coating flexible polyurethane modified organic silicon resin on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, obtaining a composite layer, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
In the step (1), the first curing is thermal curing, the curing temperature is 170 ℃, and the curing time is 60 s; in the step (2), the second curing is thermal curing, the curing temperature is 130 ℃, and the curing time is 60 s; the third curing is thermal curing, the curing temperature is 170 ℃, and the curing time is 60 s; the above-mentioned
In the step (3), the fourth curing is thermal curing, the curing temperature is 170 ℃, and the curing time is 60 s.
Example 6
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 100 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 20 μm and a peel force of 10gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
the polyalcohol polyester resin is a mixture of acrylic polyalcohol resin and linear hydroxyl polyester in a weight ratio of 2.2: 1; the curing agent is a mixture of aliphatic isocyanate and polyisocyanate in a weight ratio of 3.5: 1; the solvent is ethyl acetate.
The hand feeling agent is prepared from organic silicon modified polymethyl methacrylate, polyether modified polysiloxane and polydimethylsiloxane in a weight ratio of 1.8: 2.5: 1.
The thickness of the self-repairing layer 21 is 40 μm; the flexible soft film layer 22 is a TPU film with the thickness of 200 mu m; the using glue layer 23 is a polyurethane pressure-sensitive glue resin layer with the thickness of 60 mu m and the peeling force of 200gf/25 mm; the peeling layer 3 is a silicone oil release film with a thickness of 75 μm and a release force of 10gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a flexible full-wrapping soft film: taking a TPU film, coating self-repairing resin on one surface of the TPU film, forming a self-repairing layer after secondary curing, tearing off the isolating film from the protective film layer prepared in the step (1), and covering the isolating film on the surface of the self-repairing layer; and coating a using layer glue on the other side of the TPU film, forming a using glue layer after third curing, and then covering a stripping layer on the surface of the using glue layer to obtain the flexible fully-wrapped film.
In the step (1), the first curing is thermal curing, the curing temperature is 170 ℃, and the curing time is 60 s; in the step (2), the second curing is thermal curing, the curing temperature is 130 ℃, and the curing time is 60 s; the third curing is thermal curing, the curing temperature is 170 ℃, and the curing time is 60 s.
Comparative example 1
The utility model provides a flexible soft membrane of wrapping entirely, includes from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the self-repairing layer 21 of laminating in proper order down, flexible soft membrane layer 22 and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of self-repairing layer 21, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 50 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 11 μm and a peel force of 3gf/25 mm.
The self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
polyol polyester resin 100 parts
20 portions of curing agent
100 parts of a solvent.
The polyalcohol polyester resin is acrylic acid polyalcohol resin; the curing agent is aliphatic isocyanate; the solvent is ethyl acetate.
The thickness of the self-repairing layer 21 is 20 μm; the flexible soft film layer 22 is made of flexible polyurethane modified organic silicon resin with the thickness of 80 mu m; the use adhesive layer 23 is a silicone pressure-sensitive adhesive resin layer with a thickness of 35 μm and a peel force of 125gf/25 mm; the release layer 3 is a non-silicon release film having a thickness of 50 μm and a release force of 7gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after secondary curing, coating flexible polyurethane modified organic silicon resin on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, obtaining a composite layer, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
In the step (1), the first curing is thermal curing, the curing temperature is 155 ℃, and the curing time is 68 s; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 75 s; the third curing is thermal curing, the curing temperature is 130-170 ℃, and the curing time is 75 s; in the step (3), the fourth curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 75 s.
Comparative example 2
See fig. 2, a flexible soft membrane of wrapping entirely, include from last to the protective film layer 1 of laminating in proper order down, use layer 2 and peel ply 3, protective film layer 1 includes from last to the substrate layer 11 and the protective film glue film 12 of laminating in proper order down, use layer 2 includes from last to the flexible soft membrane layer 22 of laminating in proper order down and use glue film 23, the lower surface of protective film glue film 12 with the upper surface laminating of flexible soft membrane layer 22, use the lower surface of glue film 23 with the upper surface laminating of peel ply 3.
The substrate layer 11 is a PET film with the thickness of 50 μm; the protective film adhesive layer 12 is a silicone pressure-sensitive adhesive layer having a thickness of 11 μm and a peel force of 3gf/25 mm.
The flexible soft film layer 22 is made of flexible polyurethane modified organic silicon resin with the thickness of 80 mu m; the use adhesive layer 23 is a silicone pressure-sensitive adhesive resin layer with a thickness of 35 μm and a peel force of 125gf/25 mm; the release layer 3 is a non-silicon release film having a thickness of 50 μm and a release force of 7gf/25 mm.
A preparation method of a flexible full-wrapping film comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating flexible polyurethane modified organic silicon resin on the surface of the protective membrane glue layer, forming a flexible soft membrane layer after secondary curing to obtain a composite layer, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after third curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible full-wrapping soft film.
In the step (1), the first curing is thermal curing, the curing temperature is 155 ℃, and the curing time is 68 s; in the step (2), the second curing is thermal curing, the curing temperature is 130-170 ℃, and the curing time is 75 s; in the step (3), the third curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 75 s.
The flexible fully-wrapped films prepared in examples 1 to 6 and comparative examples 1 to 2 were subjected to relevant tests such as self-repairing performance, and the test results are as follows:
the self-repairing capability test of the flexible fully-wrapped soft film is to utilize a 2H pencil to slide the surface of a self-repairing layer under the pressure of 500gf, and observe the degree of scratches and the disappearance time;
the self-repairing scratch resistance test is to use a 200g copper brush to brush for 10 times at 25 ℃ and test the recovery time of scratches;
the oil shrinkage effect test is to use an oily pen to slide, make oil stains appear in the shape of one oil bead, then wipe the oil stains by using cloth, and observe the wiping condition of the oil stains;
the water drop angle test of the self-repairing layer is to test the self-repairing layer by using a water drop angle tester;
the attaching effect is that the manufactured flexible full-wrapping soft film is attached to a curved-surface screen mobile phone (such as a samsung S7 mobile phone) and the like, and the attaching condition of the flexible full-wrapping soft film is observed.
According to the test and result data, the flexible full-wrapping soft film prepared by the method disclosed by the invention has the advantages of smooth hand feeling, large peeling force, capability of comprehensively wrapping a curved screen, better rebound resilience and self-repairing effect, capability of automatically repairing scratch marks in a short time, capability of preventing the scratch marks from influencing the appearance and the using effect of the flexible full-wrapping soft film and prolonging the service life of the flexible full-wrapping soft film.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (7)
1. A flexible full-wrapping film is characterized in that: the protective film comprises a protective film layer, a using layer and a stripping layer which are sequentially laminated from top to bottom, wherein the protective film layer comprises a base material layer and a protective film adhesive layer which are sequentially laminated from top to bottom, the using layer comprises a self-repairing layer, a flexible soft film layer and a using adhesive layer which are sequentially laminated from top to bottom, the lower surface of the protective film adhesive layer is laminated with the upper surface of the self-repairing layer, and the lower surface of the using adhesive layer is laminated with the upper surface of the stripping layer;
the self-repairing layer is made of self-repairing resin, and the self-repairing resin comprises the following raw materials in parts by weight:
90-110 parts of polyol polyester resin
15-35 parts of curing agent
1-5 parts of hand feeling agent
50-150 parts of a solvent;
the polyalcohol polyester resin is at least one of acrylic polyalcohol resin and linear hydroxyl polyester; the curing agent is aliphatic isocyanate or/and polyisocyanate; the solvent is ethyl acetate;
the hand feeling agent is a modified organic silicon high molecular polymer, and the modified organic silicon high molecular polymer is at least one of organic silicon modified polymethyl methacrylate, polyether modified polysiloxane and polydimethylsiloxane.
2. A flexible, fully flexible film according to claim 1, wherein: the substrate layer is a PET film with the thickness of 23-100 mu m; the protective film adhesive layer is an organic silicon pressure-sensitive adhesive layer with the thickness of 5-20 mu m and the stripping force of 1-10gf/25 mm.
3. A flexible, fully flexible film according to claim 1, wherein: the thickness of the self-repairing layer is 5-40 μm; the flexible soft film layer is a flexible polyurethane modified organic silicon resin layer, a rubber layer, a TPU film or a PET film; the using adhesive layer is an organic silicon pressure-sensitive adhesive resin layer or a polyurethane pressure-sensitive adhesive resin layer with the thickness of 20-60 mu m and the peeling force of 50-200gf/25 mm; the stripping layer is a fluoroplastic release film or a silicone oil release film with the thickness of 36-75 mu m and the release force of 5-10gf/25 mm.
4. A method of making a flexible, fully flexible film according to any of claims 1 to 3, wherein: when the flexible soft film layer is a flexible polyurethane modified organic silicon resin layer or a rubber layer, the method comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a composite layer: tearing off the isolating membrane from the protective membrane glue layer covered with the isolating membrane in the step (1), then coating self-repairing resin on the surface of the protective membrane glue layer, forming a self-repairing layer after secondary curing, coating flexible polyurethane modified organic silicon resin or rubber on the surface of the self-repairing layer, forming a flexible soft membrane layer after third curing, and covering the isolating membrane on the surface of the flexible soft membrane layer;
(3) preparing a flexible full-wrapping soft film: tearing off the isolating film from the flexible soft film layer covered with the isolating film in the step (2), coating a use layer glue on the surface of the flexible soft film layer, forming a use glue layer after fourth curing, and covering a stripping layer on the surface of the use glue layer to obtain the flexible fully-wrapped soft film.
5. The method for preparing the flexible full-soft film according to claim 4, wherein the method comprises the following steps: in the step (1), the first curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-75 s; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 60-90 s; the third curing is thermal curing, the curing temperature is 130-170 ℃, and the curing time is 60-90 s; in the step (3), the fourth curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-90 s.
6. A method of making a flexible, fully flexible film according to any of claims 1 to 3, wherein: when the flexible soft film layer is a TPU film or a PET film, the method comprises the following steps:
(1) preparing a protective film layer: taking a substrate layer, coating a protective film adhesive on the surface of the substrate layer, forming a protective film adhesive layer after primary curing to obtain a protective film layer, and covering an isolation film on the surface of the protective film adhesive layer;
(2) preparing a flexible full-wrapping soft film: taking a TPU film or a PET film, coating self-repairing resin on one surface of the TPU film or the PET film, forming a self-repairing layer after secondary curing, tearing off the isolating film from the protecting film layer prepared in the step (1), and covering the isolating film on the surface of the self-repairing layer; coating the other side of the TPU film or the PET film with using layer glue, forming a using glue layer after third curing, and then covering the surface of the using glue layer with a stripping layer to obtain the flexible fully-wrapped soft film.
7. The method for preparing the flexible full-soft film according to claim 6, wherein the method comprises the following steps: in the step (1), the first curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-75 s; in the step (2), the second curing is thermal curing, the curing temperature is 80-130 ℃, and the curing time is 60-90 s; the third curing is thermal curing, the curing temperature is 140-170 ℃, and the curing time is 60-90 s.
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| CN111534244B (en) * | 2020-05-12 | 2022-07-05 | 江西蓝海芯科技集团有限公司 | Protective film applied to curved surface display screen |
| CN113930179A (en) * | 2020-06-29 | 2022-01-14 | 华为技术有限公司 | Protection film, flexible screen module and electronic equipment of flexible screen |
| CN112759779A (en) * | 2020-12-30 | 2021-05-07 | 南京科悦新材料有限公司 | Super-flexible release film and preparation method thereof |
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| CN115572553A (en) * | 2022-09-22 | 2023-01-06 | 苏州易昇光学材料股份有限公司 | Self-repairing flexible film based on multilayer coextrusion casting GPU and preparation method and application thereof |
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| CN116410653A (en) * | 2023-04-07 | 2023-07-11 | 宁波惠之星新材料科技股份有限公司 | Self-repairing coating, electronic screen protective film and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017510A (en) * | 2014-05-04 | 2014-09-03 | 东莞市纳利光学材料有限公司 | Protective film and preparation method thereof |
| CN204488154U (en) * | 2014-12-18 | 2015-07-22 | 东莞市纳利光学材料有限公司 | One has cambered surface coated guarantor's type shock resistance diaphragm |
| CN105969233A (en) * | 2016-06-15 | 2016-09-28 | 东莞市纳利光学材料有限公司 | Protective film capable of not rebounding after being hot-pressed and preparation method thereof |
-
2017
- 2017-10-23 CN CN201710994760.2A patent/CN107936860B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017510A (en) * | 2014-05-04 | 2014-09-03 | 东莞市纳利光学材料有限公司 | Protective film and preparation method thereof |
| CN204488154U (en) * | 2014-12-18 | 2015-07-22 | 东莞市纳利光学材料有限公司 | One has cambered surface coated guarantor's type shock resistance diaphragm |
| CN105969233A (en) * | 2016-06-15 | 2016-09-28 | 东莞市纳利光学材料有限公司 | Protective film capable of not rebounding after being hot-pressed and preparation method thereof |
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