CN115926657A - High-adhesion eye-protection multifunctional film and manufacturing method thereof - Google Patents
High-adhesion eye-protection multifunctional film and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses a high-adhesion eye-protection multifunctional adhesive film and a manufacturing method thereof. The multifunctional adhesive film is produced by a special process and a special proportion, and is of a layered structure and is divided into a performance coating, a first base film, a functional coating, a second base film, an installation sizing material and a release film from top to bottom; the film has high physical properties, including solvent resistance, difficult deformation and easy shrinkage (easy construction); change simultaneously and scrape resistant sclerosis layer light angle, make light softer, do not have dazzlingly, thorn eye feels, possess the safety and other performance of window membrane simultaneously.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a high-adhesion eye-protection multifunctional film and a manufacturing method thereof.
Background
Glass film is becoming more and more popular, and its multiple functions of decoration, safety, heat preservation and insulation, protection of aging of articles, etc. are more and more accepted by people, and are willing to consume its performance. However, products on the market are different in quality, and the products on the market are often subjected to film sticking at present, and then the adhesive layer is deformed, foamed and short in service life, so that the consumption cost is high, the sight is influenced, and the attractiveness is influenced. Meanwhile, the coating is deformed to cause poor sight, which affects safety, and the coating is especially applied to automobiles. Aiming at the comfort level of sight, the product adjusts the optical refraction and reflection angle at the same time, so that the optics is softer and the driving is safer.
The scratch-resistant hardened layer of the existing composite window film prepared from common acrylic resin is a common smooth layer.
Such products suffer from the following drawbacks:
1. the storage time is short, and the influence of the environment is large. The coating is thick, the elastic deformation is large, and orange peel lines and floating layer impression white spots are easily caused by storage and extrusion of the coiled material.
2. The coating has poor adhesion, and after construction and environmental aging, bubbles are easy to generate, and the delamination is poor.
3. The refraction and reflection angles of the light are small, and the light is dazzling under strong light.
Disclosure of Invention
The invention produces a functional window film by special process and proportion, and the film has high physical properties, including solvent resistance, difficult deformation and easy shrinkage (easy construction); simultaneously, the light angle of the scratch-resistant hardened layer is changed, so that the light is softer, the dazzling and dazzling senses are avoided, and the window film has the safety and other performances.
In order to achieve the above purpose, the invention provides a high-adhesion eye-protection multifunctional film, which is of a layered structure and is divided into a performance coating, a first base film, a functional coating, a second base film, an installation sizing material and a release film from top to bottom; the performance coating, the functional coating and the mounting sizing material consist of the following components in parts by weight;
the performance coating comprises 40-50 parts of acrylic resin, 5-40 parts of ethyl acetate, 5-40 parts of butanone and 0-25 parts of toluene;
the functional coating comprises 30-50 parts of polyurethane resin, 3-10 parts of amino resin curing agent, 3-10 parts of adhesive resin (namely a polymer of adipic acid and 1,2-propylene glycol), 5-10 parts of ethyl acetate, 0-5 parts of toluene, 5-15 parts of butanone, 0.2-1.2 parts of benzotriazole UV absorbent, 0-20 parts of nano carbon black and nano pigment and 0-20 parts of nano tungsten oxide heat insulating material;
the mounting glue material comprises 40-80 parts of acrylic resin, 4-30 parts of butanone, 4-30 parts of ethyl acetate, 0-10 parts of toluene, 0-2 parts of aluminum acetylacetonate curing agent and 0.2-1.6 parts of benzotriazole UV absorbent;
the adhesive film is prepared by the following method:
1) Coating a functional coating on the lower surface of the first base film, and drying for 0.5-1.5min by using a drying oven at the temperature of 70-120 ℃, wherein the thickness of the dried functional coating layer is 2-4 um; attaching the upper surface of the second base film, and flatly rolling;
2) Coating a mounting sizing material on the lower surface of the second base film, and drying for 0.5-1.5min by using a 70-130 ℃ drying oven, wherein the thickness of the dried mounting sizing material layer is 6-9 um; then laminating a release film, and flatly rolling;
3) Coating a performance coating on the upper surface of the first base film, using an M-shaped micro-concave roller, drying for 0.5-1min in an oven arc at 70-90 ℃ after coating, obtaining a performance coating layer of 2um after UV curing, and flatly rolling to obtain the high-adhesion eye-protection multifunctional adhesive film.
The functional coating and the mounting sizing material can be added with an ultraviolet-proof auxiliary agent, so that the aging resistance of the product is improved, the service life of the product is prolonged, and people and objects after film pasting can be protected. The functional coating is added with nano carbon black, nano pigment and tungsten oxide heat insulation material, so that the product has the functions of different colors, light transmission, infrared barrier and the like.
Preferably, the preparation method of the performance coating comprises the following steps: the acrylic resin is dissolved in an organic solvent consisting of ethyl acetate, butanone and toluene and stirred to obtain a mixed solution with the viscosity of 50-70 cps. Further preferably, the amount of each component is 50.0 parts of olefine acid resin, 20.0 parts of ethyl acetate, 15.0 parts of butanone and 7.0 parts of toluene, the viscosity of the obtained mixed solution is 50-70cps, and the higher viscosity is convenient for micro-concave transfer printing to form the microstructure layer.
Preferably, the preparation steps of the functional coating are as follows: dissolving polyurethane resin and adhesive resin in solvent composed of butanone, ethyl acetate and toluene, stirring for 10-20min to obtain resin solution; adding the nano tungsten oxide heat-insulating material, the nano carbon black and the nano pigment into the resin solution and stirring for 20-40min; then adding amino resin curing agent and benzotriazole UV absorbent, and stirring for 10-20min. Further preferably, the material liquid after each stirring step can be filtered by a 1um filter element. Still more preferably, the amounts of the respective components are 50 parts of polyurethane resin, 8.0 parts of butanone, 6.0 parts of ethyl acetate, 3.0 parts of toluene, 10.0 parts of amino resin type curing agent, 5.0 parts of adhesive resin (a polymer of adipic acid and 1,2-propanediol), 0.5 part of benzotriazole type UV absorber, 7.0 parts of nano carbon black and nano pigment.
Preferably, the preparation steps of the mounting glue stock are as follows: dissolving acrylic resin in organic solvent composed of butanone, ethyl acetate, and toluene, and stirring for 20-40min; adding aluminum acetylacetonate curing agent and benzotriazole UV absorbent, and stirring for 10-20min. Further preferably, the material liquid after each stirring step can be filtered by a 1um filter element. More preferably, the amount of each component is 40 parts of acrylic resin, 10 parts of butanone, 10 parts of ethyl acetate, 10 parts of toluene, 0.5 part of aluminum acetylacetonate curing agent and 0.8 part of benzotriazole UV absorbent.
Preferably, the first base film and the second base film are high-definition single-side corona PET base films, the release film is a PET base film treated by a single-side release agent, and the haze of the three films is less than or equal to 1.5%. The two base films can also be used without corona surface or with single corona surface, but the resin of the base film has good adhesion, and the corona surface is preferably contacted with the performance coating and the mounting adhesive.
Preferably, the lower surface of the first base film is a non-corona surface, and the upper surface is a corona surface; the lower surface of the second base film is a corona surface, and the upper surface of the second base film is a non-corona surface.
Preferably, the thickness of the first base film is 19-100 um, the thickness of the second base film is 12-100 um, and the thickness of the release film is 16-36 um; the thickness of preferred first base film is 23um, the thickness of second base film is 12um, and the thickness of release film is 23um.
Preferably, the coating method of the step 1) and the step 2) is slit coating. Slot coating can make the coating more uniform.
Preferably, the step 3) uses an M-type micro-concave roller, preferably 45 DEG, with a mesh number of 100-200.
Preferably, the drying time of the step 1) is 60S, the drying time of the step 2) is 65S, and the drying time of the step 3) is 30S; step 3) intensity of UV curing is 200mj/cm 2 。
Has the advantages that:
according to the invention, by utilizing the characteristics of high adhesion, difficult deformation and the like of polyurethane, a product composite layer is formed by precise coating equipment, the weather resistance of the product is improved, especially the air bubbles are layered, and the high adhesion performance can be verified by alkaline water soaking and solvent soaking. The color of the product is adjusted by adding the pigment nano material, and the physical property requirements of products in different markets are met. Aiming at the sight comfort level, the product simultaneously refracts light rays, adjusts the reflection angle, enables the light rays to be softer, has no dazzling feeling, and is safer to run when being applied to automobiles.
1. The solvent resistance and alkali resistance of the window film are increased, and the product grade is improved.
2. The product is not easy to delaminate, bubbles appear, and the service life of the product is prolonged.
2. The anti-dazzling function of the window film is added, and particularly the automobile film is pasted, so that the driving safety performance is improved.
3. The composite coating is thin, the dosage of chemical materials is low, the cost is low, and the contribution to environmental protection is made
4. Has all the performances of glass film, and can play the roles of safety, ultraviolet ray imitation, infrared ray prevention and the like.
5. The polyurethane resin has thermoplasticity, is easy to deform under heating and easy to construct, and is especially applicable to arc glass.
6. The production, processing and manufacturing are convenient and simple.
Drawings
FIG. 1: the cross-sectional structure of the semi-finished product 1 in example 1;
FIG. 2: the cross-sectional structure of the semi-finished product 2 in example 1;
FIG. 3: the cross-sectional structure of the finished product in example 1;
FIG. 4: light softness comparison graph of UV hardened layer:
FIG. 5 is a schematic view of: comparative solvent resistance of example 1 to comparative example.
Detailed Description
Embodiments of the present application will be described in detail by examples, so that how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
The raw materials and equipment used in the present application are all common raw materials and equipment in the field, and are all from commercially available products, unless otherwise specified. The methods used in this application are conventional in the art unless otherwise indicated.
There are many other possible embodiments of the present invention, which are not listed here, and the embodiments claimed in the claims of the present invention can be implemented.
"comprising" or "including" is intended to mean that the compositions (e.g., media) and methods include the recited elements, but not excluding others. When used to define compositions and methods, "consisting essentially of … …" is meant to exclude other elements that have any significance to the combination of the stated purposes. Thus, a composition consisting essentially of the elements defined herein does not exclude other materials or steps that would not materially affect the basic and novel characteristics of the claimed application. "consisting of … …" refers to trace elements and substantial process steps excluding other components. Embodiments defined by each of these transitional terms are within the scope of this application. Obtained by the preparation method disclosed in the patent.
Example 1:
preparing a functional coating (with an ultraviolet-proof function), which comprises the following components in parts by weight: polyurethane resin: 50 parts of butanone: 8.0 parts of ethyl acetate: 6.0 parts of toluene: 3.0 parts of amino resin curing agent: 10.0 parts of a tackifying resin (i.e. a polymer of adipic acid and 1,2-propanediol): 5.0 part of benzotriazole UV absorbent T-571:0.5 part of nano carbon black and nano pigment: 7.0 parts (wherein the pigment comprises 4.0 parts of carbon black, 1.6 parts of red and 1.4 parts of blue), nano tungsten oxide heat-insulating material: 0 part of (C); the components are added, blended and stirred according to a certain sequence to prepare the functional coating. The sequence is as follows: diluting the resin and the solvent, stirring for 15min, and filtering by using a 1um filter element; filtering the nano carbon black, the nano pigment and the heat insulation slurry by using a 1um filter element, adding into the resin, and continuously stirring for 30min; and finally adding the curing agent and the UV absorbent and stirring for 10-20min. Blending and stirring to prepare the functional coating.
Preparing a mounting sizing material (with an ultraviolet-proof function), and comprising the following components in parts by weight: acrylic resin: 40 parts of butanone: 10 parts of ethyl acetate: 10 parts of toluene: 10 parts of aluminum acetylacetonate curing agent: 0.5 part of benzotriazole UV absorbent UV384-2:0.8 part; the components are added, blended and stirred according to a certain sequence to prepare the mounting rubber material. The sequence is as follows: diluting the resin and the solvent, stirring for 30min, filtering with a 1um filter element, and continuously adding the curing agent and the UV absorbent and stirring for 10-20min.
Preparing a performance coating, which comprises the following components in parts by weight: acrylic resin: 50.0 parts of ethyl acetate: 20.0 parts of butanone: 15.0 parts of toluene: 7.0 parts. The acrylic resin is dissolved in the organic solvent and stirred to high viscosity (50-70 cps) to prepare the performance coating.
The M-shaped micro-concave roller is preferably 45 degrees, and the mesh number of the M-shaped micro-concave roller is 100-200.
The preparation method comprises the following steps:
1) Coating the functional coating prepared on the lower surface (non-corona surface) of the 23um PET base film with the haze of less than or equal to 1.5%, drying at the arc drying temperature of 70-120 ℃ for 60 seconds to form a 2um coating (namely a functional coating layer, also called a functional layer), and attaching the 2um coating to the upper surface (non-corona surface) of the other 12um base film with the haze of less than or equal to 1.5% to prepare a semi-finished product 1.
2) Coating an installation sizing material on the lower surface (corona surface) of the base film of 12um of the semi-finished product 1, drying at an arc drying temperature of 75-130 ℃ for 65 seconds to form an 8um coating (namely an installation sizing material layer, also called as an installation layer), and attaching a PET release film with the haze of 23um being less than or equal to 1.5%. To obtain a semi-finished product 2.
3) The performance coating is coated on the upper surface (corona surface) of the 23umPET basal membrane of the semi-finished product 2. Using an M-shaped micro-concave roller, coating, drying at an arc drying temperature of 70-90 ℃ for 30S, and passing through 200mj/cm 2 The UV curing and forming to form a 2um microstructure coating (namely a performance coating layer, also called a scratch-resistant layer), and flattening and rolling to obtain a finished product.
Wherein fig. 1-3 are respectively cross-sectional structural views of a semi-finished product 1, a semi-finished product 2 and a finished product.
Example 2:
preparing a functional coating (with an ultraviolet-proof function), which comprises the following components in parts by weight: polyurethane resin: 30 parts of butanone: 6.5 parts of ethyl acetate: 0 part of toluene: 5.5 parts of amino resin curing agent: 4.0 parts of adhesive resin (a polymer of adipic acid and 1,2-propanediol): 3.50 parts of benzotriazole UV absorbent T-571:0.3 part of nano carbon black and nano pigment: 2.8 parts (wherein the pigment comprises 1.60 parts of carbon black, 0.7 part of red and 0.5 part of blue), nano tungsten oxide heat-insulating material: 4 parts of a mixture; the components are added, blended and stirred according to a certain sequence to prepare the functional coating. (same procedure as in example 1)
Preparing a mounting sizing material (with an ultraviolet-proof function), and comprising the following components in parts by weight: acrylic resin: 60 parts of butanone: 22.5 parts of ethyl acetate: 22.5 parts of toluene: 0 part of aluminum acetylacetonate curing agent: 0.8 part of benzotriazole UV absorbent T-571:1.4 parts; the components are added, blended and stirred according to a certain sequence to prepare the mounting rubber material. (same procedure as in example 1)
Preparing a performance coating, which comprises the following components in parts by weight: acrylic resin: 45.0 parts of ethyl acetate: 40.0 parts of butanone: 6.0 part of toluene: 0.0 part. The acrylic resin is dissolved in the organic solvent and stirred to high viscosity (50-70 cps) to prepare the performance coating.
The M-shaped micro-concave roller is preferably 45 degrees, and the mesh number of the M-shaped micro-concave roller is 100-200.
The preparation method comprises the following steps:
1) Coating the functional coating prepared on the lower surface (non-corona surface) of the 23um PET base film with the haze of less than or equal to 1.5%, drying at the arc drying temperature of 70-120 ℃ for 60 seconds to form a 3um coating, and attaching the coating to the upper surface (non-corona surface) of another 12um base film with the haze of less than or equal to 1.5% to prepare a semi-finished product 1.
2) Coating and installing sizing material on the lower surface (corona surface) of the 12um base film of the semi-finished product 1, drying for 65 seconds at an arc drying temperature of 75-130 ℃ to form an 8um coating, and attaching a 23um PET release film with haze being less than or equal to 1.5%. To obtain a semi-finished product 2.
3) The performance coating is coated on the upper surface (corona surface) of the 23um base film of the semi-finished product 2. Using an M-shaped micro-concave roller, after coating, drying at the arc drying temperature of 70-90 ℃ for 30S, and then passing through 300mj/cm 2 The UV curing molding forms a 2um microstructure coating, and the finished product is prepared by leveling and rolling.
Example 3:
preparing a functional coating (with an ultraviolet-proof function), which comprises the following components in parts by weight: polyurethane resin: 40 parts of butanone: 12 parts of ethyl acetate: 5 parts of toluene: 0.50 part of amino resin curing agent: 4.0 parts of adhesive resin (polymer of adipic acid and 1,2-propanediol): 5.50 parts of benzotriazole UV absorbent UV384-2:1.0 part of nano carbon black and nano pigment: 0 part, nano tungsten oxide heat-insulating material: 18 parts of a mixture; the components are added, blended and stirred according to a certain sequence to prepare the functional coating. (in the same order
Example 1)
Preparing an installation sizing material (with an ultraviolet-proof function), which comprises the following components in parts by weight: acrylic resin: 60 parts of butanone: 30 parts of ethyl acetate: 10 parts of toluene: 5 parts of aluminum acetylacetonate curing agent: 1.2 parts of benzotriazole UV absorbent T-571:1.6 parts; the components are added, blended and stirred according to a certain sequence to prepare the mounting rubber material. (same procedure as in example 1)
Preparing a performance coating, which comprises the following components in parts by weight: acrylic resin: 40.0 parts of ethyl acetate: 5.0 parts of butanone: 12.0 parts of toluene: 25.0 parts. The acrylic resin is dissolved in the organic solvent and stirred to high viscosity (50-70 cps) to prepare the performance coating.
The M-shaped micro-concave roller is preferably 45 degrees, and the mesh number of the M-shaped micro-concave roller is 100-200.
The preparation method comprises the following steps:
1) Coating the functional coating prepared on the lower surface (non-corona surface) of the 23um PET base film with the haze of less than or equal to 1.5%, drying at the arc drying temperature of 70-120 ℃ for 60 seconds to form a 3um coating, and attaching the coating to the upper surface (non-corona surface) of another 12um base film with the haze of less than or equal to 1.5% to prepare a semi-finished product 1.
2) Coating and installing sizing material on the lower surface (corona surface) of the 12um base film of the semi-finished product 1, drying for 65 seconds at an arc drying temperature of 75-130 ℃ to form a 7um coating, and attaching a 23um PET release film with haze less than or equal to 1.5%. To obtain a semi-finished product 2.
3) The performance coating is coated on the upper surface (corona surface) of the 23um base film of the semi-finished product 2. Using an M-shaped micro-concave roller, after coating, drying at the arc drying temperature of 70-90 ℃ for 30S, and passing through 250mj/cm 2 The UV curing and forming are carried out to form a 2um microstructure coating, and the finished product is obtained after the coating is flattened and rolled.
Example 4:
preparing a functional coating (with an ultraviolet-proof function), which comprises the following components in parts by weight: polyurethane resin: 45 parts of butanone: 5.5 parts of ethyl acetate: 9 parts of toluene: 1.0 part of amino resin curing agent: 9.50 parts of adhesive resin (polymer of adipic acid and 1,2-propanediol): 6.0 parts of benzotriazole UV absorbent UV384-2:0.9 part of nano carbon black and nano pigment: 17.50 parts of (wherein, the pigment comprises 7.0 parts of carbon black, 5.5 parts of red and 5.5 parts of blue), nano tungsten oxide heat insulation material: 2 parts of (1); the components are added, blended and stirred according to a certain sequence to prepare the functional coating. (same procedure as in example 1)
Preparing a mounting sizing material (with an ultraviolet-proof function), and comprising the following components in parts by weight: acrylic resin: 80 parts of butanone: 24 parts of ethyl acetate: 30 parts of toluene: 6 parts of aluminum acetylacetonate curing agent: 1.8 parts of benzotriazole UV absorbent UV384-2:0.2 part; the components are added, blended and stirred according to a certain sequence to prepare the mounting rubber material. (same procedure as in example 1)
Preparing a performance coating, which comprises the following components in parts by weight: acrylic resin: 50.0 parts of ethyl acetate: 5.0 parts of butanone: 40.0 parts of toluene: 3.0 parts. The acrylic resin is dissolved in the organic solvent and stirred to high viscosity (50-70 cps) to prepare the performance coating.
The M-shaped micro-concave roller is preferably 45 degrees, and the mesh number of the M-shaped micro-concave roller is 100-200.
The preparation method comprises the following steps:
1) And (3) coating the functional coating prepared on the lower surface (non-corona surface) of the 23um base film with the haze of less than or equal to 1.5%, drying at the arc drying temperature of 70-120 ℃ for 60 seconds to form a 4um coating, and attaching the 4um coating to the upper surface (non-corona surface) of another 12um base film with the haze of less than or equal to 1.5% to prepare a semi-finished product 1.
2) Coating an installation sizing material on the lower surface (corona surface) of the base film of 12um of the semi-finished product 1, drying at an arc drying temperature of 75-130 ℃ for 65 seconds to form a coating of 9um, and attaching a PET release film with the haze of 23um being less than or equal to 1.5%. To obtain a semi-finished product 2.
3) The performance coating is coated on the upper surface (corona surface) of the 23um base film of the semi-finished product 2. Using an M-shaped micro-concave roller, after coating, drying at the arc drying temperature of 70-90 ℃ for 30S, and passing through 320mj/cm 2 The UV curing and forming are carried out to form a 2um coating, and the finished product is obtained after the coating is flattened and rolled.
Comparative example 1:
preparing a functional coating (with an ultraviolet-proof function), which comprises the following components in parts by weight: acrylic resin: 50 parts of solvent: 17.0 parts, aluminum acetylacetonate: 0.25 parts of benzotriazole UV absorber: 0.5 part of pigment: 7.0 parts (wherein the pigment comprises 4.0 parts of black, 1.6 parts of red and 1.4 parts of blue), thermal insulation slurry: 0 part of (C); the components are blended and stirred to prepare the functional coating.
The preparation method comprises the following steps:
1) Coating the prepared functional coating on the lower surface (non-corona surface) of the 23umPET base film with the haze of less than or equal to 1.5%, drying at the arc drying temperature of 75-130 ℃ for 60 seconds to form a 7um coating, and attaching the coating to the upper surface (non-corona surface) of another 12umPET base film with the haze of less than or equal to 1.5% to prepare a semi-finished product 1.
2) Coating and installing glue on the lower surface (corona surface) of the base film of 12um of the semi-finished product 1, drying at 75-130 ℃ for 65 seconds to form an 8um coating, and attaching to a PET release film of 23um. To obtain a semi-finished product 2.
3) And coating a common acrylic resin hardened layer coating on the upper surface (corona surface) of the 23um base film of the semi-finished product 2. And forming a 2um coating through UV curing molding, and flatly rolling to obtain a finished product.
The film prepared by the invention is superior to the comparative example in haze, light transmittance and solvent resistance. Wherein:
haze: the ratio of the scattered light flux to the transmitted light flux through the sample, which deviates from the direction of the incident light, is expressed as a percentage and is the haze.
Light transmittance: the loss of light through the sample, the ratio of the transmitted light flux through the sample to the incident light flux impinging on the sample, expressed as a percentage, is the light transmission;
solvent resistance: refers to the ability of a high molecular weight polymer to resist swelling, dissolution, cracking or deformation caused by a solvent. The patent refers to the field of 'coatings'.
Test example 1: UV hardened layer light soft contrast experiment
The UV-hardening protective layer of comparative example 1 is a smooth plane, has a small loss of light transmittance, and has a more concentrated optical path. The film prepared by the invention has the advantages that the performance coating layer is of a rugged structure, the light reflectivity is increased, the light refraction paths are more, the light is softer, and the schematic diagram of the light path is shown in figure 4. Therefore, the product prepared by the invention is irradiated by a back projection with an intense light source, the eye comfort is better, and the specific result is shown in table 1.
Test example 2: comparative solvent resistance test
Taking a produced sample with a proper size, soaking the sample in a container, wherein a soaking solution in the container is a solvent, preferably butanone, soaking for 24 hours, observing whether the edge of the sample is layered, taking out the sample, wiping the sample to be dry, applying reverse acting force to the peripheral cuts to confirm whether the sample can be torn, and specifically showing the specific results in a graph 5 or a table 1.
Practical physical property tests of examples 1 to 4 and comparative example 1 as described above, the following table 1:
TABLE 1
The details not described in the specification of the present application belong to the common general knowledge of those skilled in the art.
In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a commodity or system comprising the element.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A high-adhesion multifunctional eye-protection film is characterized by having a layered structure and being divided into a performance coating, a first base film, a functional coating, a second base film, an installation sizing material and a release film from top to bottom; the performance coating, the functional coating and the mounting sizing material consist of the following components in parts by weight; the performance coating comprises 40-50 parts of acrylic UV resin, 5-40 parts of ethyl acetate, 5-40 parts of butanone and 0-25 parts of toluene;
the functional coating comprises 30-50 parts of polyurethane resin, 3-10 parts of amino resin curing agent, 3-10 parts of adhesive resin, 5-10 parts of ethyl acetate, 0-5 parts of toluene, 5-15 parts of butanone, 0.2-1.2 parts of benzotriazole UV absorbent, 0-20 parts of nano carbon black and nano pigment, and 0-20 parts of nano tungsten oxide heat insulation material;
the mounting glue material comprises 40-80 parts of acrylic resin, 4-30 parts of butanone, 4-30 parts of ethyl acetate, 0-10 parts of toluene, 0-2 parts of aluminum acetylacetonate curing agent and 0.2-1.6 parts of benzotriazole UV absorbent;
the adhesive film is prepared by the following method:
1) Coating a functional coating on the lower surface of the first base film, and drying for 0.5-1.5min by using a drying oven at the temperature of 70-120 ℃, wherein the thickness of the dried functional coating layer is 2-4 um; attaching the upper surface of the second base film, and flatly rolling;
2) Coating a mounting sizing material on the lower surface of the second base film, and drying for 0.5-1.5min by using a 70-130 ℃ drying oven, wherein the thickness of the dried mounting sizing material layer is 6-9 um; then laminating a release film, and flatly rolling;
3) Coating a performance coating on the upper surface of the first base film, using an M-shaped micro-concave roller, drying for 0.5-1min in an oven arc at 70-90 ℃ after coating, obtaining a performance coating layer of 2um after UV curing, and flatly rolling to obtain the high-adhesion eye-protection multifunctional adhesive film.
2. The multifunctional high-adhesion eye-protection film as claimed in claim 1, wherein the performance coating is prepared by: dissolving acrylic resin in an organic solvent consisting of ethyl acetate, butanone and toluene, and stirring to obtain a mixed solution with the viscosity of 50-70 cps.
3. The multifunctional high-adhesion eye-protection adhesive film according to claim 1, wherein the functional coating is prepared by the following steps: dissolving polyurethane resin and adhesive resin in solvent composed of butanone, ethyl acetate and toluene, and stirring for 10-20min to obtain resin solution; adding the nano tungsten oxide heat insulation material, the nano carbon black and the nano pigment into the resin solution and stirring for 20-40min; then adding amino resin curing agent and benzotriazole UV absorbent, and stirring for 10-20min.
4. The high adhesion multifunctional eye protection film according to claim 1, wherein the mounting glue is prepared by the following steps: dissolving acrylic resin in organic solvent composed of butanone, ethyl acetate, and toluene, and stirring for 20-40min; adding aluminum acetylacetonate curing agent and benzotriazole UV absorbent, and stirring for 10-20min.
5. The multifunctional high-adhesion eye-protection film as claimed in claim 1, wherein the first base film and the second base film are single-sided corona PET base films, the release film is a PET base film treated by a single-sided release agent, and the haze of the three films is less than or equal to 1.5%.
6. The multifunctional high-adhesion eye-protection film according to claim 5, wherein the lower surface of the first base film is a non-corona surface, and the upper surface is a corona surface; the lower surface of the second base film is a corona surface, and the upper surface of the second base film is a non-corona surface.
7. The multifunctional high-adhesion eye-protection film according to claim 1, wherein the first base film has a thickness of 19 to 100um, the second base film has a thickness of 12 to 100um, and the release film has a thickness of 16 to 36um; the thickness of preferred first base film is 23um, the thickness of second base film is 12um, and the thickness of release film is 23um.
8. The multifunctional high-adhesion eye-protection adhesive film according to claim 1, wherein the coating manner of the steps 1) and 2) is slit coating.
9. The high adhesion eye protection multifunctional adhesive film according to claim 1, wherein the step 3) uses an M-type micro-concave roller, preferably a 45 ° mesh 100-200 micro-concave roller.
10. The multifunctional high-adhesion eye-protection adhesive film according to claim 1, wherein the drying time of step 1) is 60S, the drying time of step 2) is 65S, and the drying time of step 3) is 30S; step 3) the intensity of UV curing is 150-400 mj/cm 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211590939.9A CN115926657A (en) | 2022-12-12 | 2022-12-12 | High-adhesion eye-protection multifunctional film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211590939.9A CN115926657A (en) | 2022-12-12 | 2022-12-12 | High-adhesion eye-protection multifunctional film and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115926657A true CN115926657A (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211590939.9A Pending CN115926657A (en) | 2022-12-12 | 2022-12-12 | High-adhesion eye-protection multifunctional film and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115926657A (en) |
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2022
- 2022-12-12 CN CN202211590939.9A patent/CN115926657A/en active Pending
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