CN214142162U - Window film for preventing visible light short wave damage - Google Patents
Window film for preventing visible light short wave damage Download PDFInfo
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- CN214142162U CN214142162U CN202022780952.3U CN202022780952U CN214142162U CN 214142162 U CN214142162 U CN 214142162U CN 202022780952 U CN202022780952 U CN 202022780952U CN 214142162 U CN214142162 U CN 214142162U
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Abstract
The utility model discloses a window membrane for preventing visible light shortwave injury, it includes compound refraction cladding material as an organic whole, prevents blue light base film, dyeing adhesive layer, prevents purple light base film, pressure sensitive adhesive layer and from the type membrane from outside to inside in proper order, the thickness of window membrane is 158 and 538 mu m. The utility model discloses a cooperation of the double-deck base film that bonds to short wave in absorption, the separation visible light, especially blue light and blue or green, purple light, thereby can obtain a window membrane that can prevent visible light short wave injury. In addition, the utility model discloses can also adjust the basic tone of the window membrane after having absorbed blue and blue purple light through dyeing adhesive layer, make it be partial to as far as possible colorless transparent to do benefit to the window membrane and extensively be applicable to various occasions more easily.
Description
Technical Field
The utility model relates to a paste window membrane technical field on the window glass surface of vehicle or building, specifically be a can absorb, the window membrane of the shortwave in the separation visible light, in particular to a window membrane for preventing visible light shortwave injury.
Background
More than 99% of the solar radiation spectrum of the upper world of the earth's atmosphere has a wavelength of 0.15-4.0 microns. Approximately 50% of the solar radiation energy is in the visible (wavelength 0.4-0.76 microns), 7% in the ultraviolet (wavelength <0.4 microns), 43% in the infrared (wavelength >0.76 microns) spectrum, and the maximum energy is at the wavelength 0.475 microns. Because the wavelength of solar radiation is much shorter than that of ground and atmospheric radiation (about 3-120 microns), the solar radiation is generally called short-wave radiation, and the ground and atmospheric radiation is called long-wave radiation. Solar radiation passes through the atmosphere, with a portion reaching the ground, known as direct solar radiation; the other part is the absorption, scattering and reflection of atmospheric molecules, micro-dust, water vapor and the like in the atmosphere. A portion of the scattered solar radiation returns to space and another portion reaches the ground, where it is known as scattered solar radiation. The sum of the scattered solar radiation and the direct solar radiation reaching the ground is called total radiation. Solar radiation passes through the atmosphere and changes both in intensity and spectral power distribution. The energy of solar radiation reaching the ground is much less than the upper air bound, and the energy distribution in the solar spectrum is almost extinct in the ultraviolet spectral region, reduced to 40% in the visible spectral region, and increased to 60% in the infrared spectral region.
Visible light is a part of the electromagnetic spectrum which can be perceived by human eyes, and the visible spectrum has no precise range; the frequency of electromagnetic waves which can be perceived by eyes of ordinary people is 380-750 THz, and the wavelength is 780-400 nm. Visible light can be sensed by human eyes in daily life, the visible light in popular meaning is divided into seven colors, namely red orange yellow green blue purple, red orange yellow long-wavelength light and blue purple short-wavelength light. Short wave light belongs to the visible light that the energy is stronger, and the cornea and the crystal of human eye can be penetrated to too strong short wave light to direct the damage that causes macula lutea portion photoreceptor cell to the macula lutea portion, simultaneously, the retina can produce the free radical in short wave light irradiation, and the free radical can lead to retina pigment epithelium cell to die, and then makes the photosensitive cell lack of nutrient. In addition, the scattering condition of the short wave light is more serious than that of other visible light, and the eyes are easy to fatigue to form pseudomyopia under focusing and watching for a long time.
Most of window films in the prior art are limited to functions of ultraviolet protection, heat insulation, explosion prevention and the like, and window films special for absorbing and blocking short waves in visible light are not seen, so that a window film for preventing visible light short wave damage is required to be developed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a window membrane for preventing visible light shortwave damage to reduce or avoid the aforementioned problem.
In order to solve the technical problem, the utility model provides a window membrane for preventing visible light shortwave injury, it includes compound refraction cladding material as an organic whole, prevents blue light base film, dyeing adhesive layer, prevents purple light base film, pressure sensitive adhesive layer and leaves the type membrane from outside to inside in proper order, the thickness of window membrane is 158 types 538 mu m.
Preferably, the thickness of the refraction coating layer is 8-40 μm, the thickness of the blue-light-proof base film is 50-180 μm, the thickness of the dyeing adhesive layer is 10-30 μm, the thickness of the violet-light-proof base film is 50-180 μm, the thickness of the pressure-sensitive adhesive layer is 30-50 μm, and the thickness of the release film is 10-58 μm.
This application is through the cooperation of the double-deck base film that bonds to short wave in absorption, the separation visible light, especially blue light and blue or green, purple light, thereby can obtain a window membrane that can prevent visible light short wave damage. In addition, the utility model discloses can also adjust the basic tone of the window membrane after having absorbed blue and blue purple light through dyeing adhesive layer, make it be partial to as far as possible colorless transparent to do benefit to the window membrane and extensively be applicable to various occasions more easily.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 shows a schematic structural diagram of a window film base film for preventing visible short wave damage according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
As described in the background art, in visible light, red orange yellow is a long-wavelength light, and cyan blue violet is a short-wavelength light. Short waves in visible light have certain damage to glasses, and particularly, blue light can reach the retina deeply, so that the damage is particularly great. In view of this, the utility model provides a window membrane for preventing visible light short wave injury, its cooperation through the double-deck base film that bonds to short wave in absorption, the separation visible light, especially blue light and blue or green, purple light obtain a window membrane that can prevent visible light short wave injury.
As shown in fig. 1, a schematic structural diagram of a window film for preventing visible short wave damage according to an embodiment of the present invention is shown. Like the figure, the utility model provides a window membrane for preventing visible light shortwave injury, it includes compound refraction cladding material 1 as an organic whole from outside to inside in proper order, prevents blue light base film 2, dyeing adhesive layer 3, prevents purple light base film 4, pressure sensitive adhesive layer 5 and from type membrane 6. The utility model discloses an among the window membrane structure, prevent blue light base film 2 and be arranged in absorbing the blue light in the visible light, prevent blue light base film 4 mainly used and absorb blue or green, purple light in the visible light, dyeing adhesive layer 3 is used for bonding two-layer base film as an organic whole and adjusts window membrane colourity for reduce the injury of shortwave in the visible light to eyes. In one embodiment of the present invention, the thickness of the window film is 158-. In another embodiment of the present invention, the thickness of the refraction coating layer 1 is 8-40 μm, the thickness of the blue-light-proof base film 2 is 50-180 μm, the thickness of the dyeing adhesive layer 3 is 10-30 μm, the thickness of the violet-light-proof base film 4 is 50-180 μm, the thickness of the pressure sensitive adhesive layer 5 is 30-50 μm, and the thickness of the release film 6 is 10-58 μm.
Specifically, the refraction coating layer 1 may be a metal oxide coating layer, a silicon element coating layer, a metal coating layer, or the like, which is commonly used in the prior art, and may be a single-layer coating layer or a multi-layer composite coating layer. The refraction coating 1 can be used for improving the refraction of the window film to light, filtering out a part of harmful visible light, and enabling the window film to present different colors according to the selection of the coating. The principles of construction of refractive coatings are well known in the art and can be understood by those skilled in the art by reference to the following prior art previously filed by the applicant, for example, chinese patent applications 2016108119465, 2016108104686, 2016108104900, etc.
Prevent blue light base film 2 and make by 80% PET and 20% prevent blue light function masterbatch, can so that prevent blue light base film 2 and possess through preventing blue light function masterbatch and prevent blue light function. The blue light prevention functional master batch comprises the following components in percentage by mass: 92 to 98 percent of PET, 0.1 to 1.5 percent of silicon dioxide, 0.1 to 0.55 percent of azomethine, 0.01 to 0.05 percent of phthalocyanine, 0.1 to 0.6 percent of aluminum oxide and 1.5 to 5.5 percent of sodium stearate. The sum of the mass of the PET, the silicon dioxide, the azomethine, the phthalocyanine, the aluminum oxide and the sodium stearate is 100 percent of the mass of the blue light prevention functional master batch; the sum of the mass of the silicon dioxide, the azomethine, the phthalocyanine, the aluminum oxide and the sodium stearate is 2 to 8 percent of the mass of the blue light prevention functional master batch; the sum of the mass of the azomethine and the phthalocyanine is 0.1 to 0.6 percent of the mass of the blue-light-proof functional master batch.
The dyeing adhesive layer 3 is formed by curing an acrylic adhesive added with phthalocyanine, wherein the content of the phthalocyanine in the dyeing adhesive layer 3 can be adjusted according to the color of the window film. The method is mainly used for adjusting the basic color tone of the window film after absorbing bluish violet light, so that the window film is as colorless and transparent as possible, and the window film is beneficial to being widely applied to various occasions more easily. In one embodiment, the mass percentage of phthalocyanine in the dyed adhesive layer 3 is preferably 0.01% to 0.1%.
The anti-violet base film 4 is made of 90% of PET and 10% of anti-violet functional master batch, and the anti-violet base film 4 can have the anti-cyan-violet function through the anti-violet functional master batch. The purple light prevention functional master batch comprises the following components in percentage by mass: 96.5 to 98.6 percent of PET, 0.4 to 1.6 percent of silicon dioxide, 0.06 to 0.6 percent of alkaline earth metal silicate, 0.3 to 1.3 percent of polydimethylsiloxane and 0.2 to 0.8 percent of ultraviolet absorber; wherein: the alkaline earth metal silicate is preferably magnesium silicate or calcium silicate, most preferably magnesium silicate; the sum of the mass of the PET, the silicon dioxide, the alkaline earth metal silicate, the polydimethylsiloxane and the ultraviolet absorbent is 100 percent of the mass of the anti-violet functional master batch; the sum of the mass of the silicon dioxide, the alkaline earth metal silicate, the ultraviolet absorber and the polydimethylsiloxane is 1.4-3.5% of the mass of the anti-violet functional master batch. In one embodiment, the ultraviolet light absorber is preferably 2-hydroxy-4-methoxybenzophenone (UV-9) or 2-hydroxy-4-n-octoxybenzophenone (UV-531).
The pressure sensitive adhesive layer 5 is used for adhering the window film to the glass surface by applying pressure, and may be made of any one of the existing pressure sensitive adhesives.
The release film 6 is used for protecting the pressure-sensitive adhesive layer 5 and needs to be peeled off when in use.
The utility model discloses a prevent among the visible light shortwave injury window membrane, prevent blue light base film 2 prevent the cooperation of aluminium sesquioxide and first imine in the blue light function master batch, have excellent absorption to the blue light, the film can present yellow aging state partially after the blue light absorbs, can influence the sale of product, through adding very little dark blue phthalocyanine, can mix with the blue and yellow of reflection, make final product be close to white, can further improve the scattering of white mixed light through silica, improve the transparency of film, can improve the polyester performance through silica and aluminium sesquioxide simultaneously, sodium stearate is used for improving the whole dispersibility of material, to improving aluminium sesquioxide, the homogeneity of first imine and phthalocyanine has more obvious effect.
The utility model discloses a prevent among the visible light shortwave injury window membrane, prevent that silicon dioxide in the purple light function masterbatch of preventing of purple light base film 4 can improve polyester film's light transmissivity, processability and intensity. The alkaline earth metal silicate can reduce the heat shrinkability caused by the increase of the silica content in the polyester film. The polydimethylsiloxane can improve the dispersibility of silicon dioxide in polyester, avoid agglomeration, contribute to reducing the addition of inorganic particles and improve the optical performance of the polyester film. Silicon atoms of the silicon dioxide and the alkaline earth metal silicate are combined with silicon atoms of the polydimethylsiloxane, and a macromolecule at the other end of the polydimethylsiloxane can be combined with alkane of the polyester, so that the silicon dioxide and the alkaline earth metal silicate can be uniformly dispersed and kept in the polyester. The alkaline earth elements in the alkaline earth metal silicate are easy to form a complex with proper strength and interaction with a common phosphorus compound catalyst, a stabilizer, a flame retardant and the like in the polyester, so that the dispersibility of the silicon dioxide can be improved, the binding force of the silicon dioxide and the alkaline earth metal silicate in the polyester can be improved, and the light transmittance of the polyester film can be improved. In addition, as mentioned above, the addition of an alkaline earth metal silicate such as magnesium silicate or calcium silicate can reduce the shrinkage of the polyester film, and is particularly suitable for addition to a polyester film in the optical field, which is advantageous for improving the optical properties of the base film. It should be noted that the shrinkage of the polyester film produced by the addition of silica varies significantly, and is very advantageous for heat-shrinkable films. However, polyester films used in optical fields (e.g., display base films, optical films, etc.) are required to have a shrinkage as low as possible. The utility model discloses in, through the combination of silicate composition and silica, improve the dispersibility on the one hand, on the other hand utilizes alkaline earth metal to reduce the shrinkage factor of the film that has added silica, and then improves the optical property of film. Silica can create a strong binding force through polydimethylsiloxane. The alkaline earth metal silicate has large specific surface area, is loose and porous, and can improve the dispersibility of the silicon dioxide and avoid agglomeration by utilizing the adsorption generated by the silicon element component of the alkaline earth metal silicate and the silicon dioxide. The anti-violet functional master batch added with silicon dioxide, alkaline earth metal silicate and polydimethylsiloxane has small viscosity change relative to the bulk polyester, and is beneficial to maintaining the stability of the parameters of the polyester film; the dosage of the anti-adhesion particles can be reduced; the processing property, tensile strength, light transmittance and flame retardant property of the polyester film are improved. In addition, the glossiness, the wear resistance, the high temperature resistance and the heat insulation performance of the polyester film can be improved.
The preparation method of the blue light prevention functional master batch of the utility model is further explained by the specific examples below. In a specific embodiment, at normal temperature, 92-98% of powdered PET, 0.1-1.5% of nano-silica, 0.1-0.55% of powdered azomethine, 0.01-0.05% of powdered phthalocyanine, 0.1-0.6% of nano-alumina and 1.5-5.5% of powdered sodium stearate by mass are added into a high-speed mixer for pre-dispersion and mixing, and the rotation speed is 1000-1500 rpm and the mixing is carried out for 15-30 minutes to form a mixture. And then carrying out melt extrusion through a double-screw extruder, and then carrying out water-cooling granulation to obtain the blue-light-proof functional master batch.
The preparation method of the anti-violet functional master batch of the utility model is further explained by the specific examples. In a specific embodiment, at normal temperature, 96.5-98.6% of powdered PET, 0.4-1.6% of nano silicon dioxide, 0.06-0.6% of nano alkaline earth metal silicate, 0.3-1.3% of polydimethylsiloxane and 0.2-0.8% of ultraviolet absorber are added into a high-speed mixer for pre-dispersion and mixing, and the rotation speed is 1000-1500 rpm, and the mixture is formed after 15-30 minutes of mixing. And then carrying out melt extrusion through a double-screw extruder, and then carrying out water-cooling granulation to obtain the anti-violet functional master batch.
The method for preparing the blue-light-proof base film 2 of the present invention is further described below. The utility model discloses a prevent blue light base film 2's preparation method includes following step:
1) mixing 80% of PET resin and 20% of blue-light-proof master batch, putting the mixture into a pre-crystallizer, pre-crystallizing the mixture for 15 minutes at the temperature of 160 ℃, then putting the PET material into a drying tower, drying the PET material for 6 hours at the temperature of 160 ℃, and then putting the PET material into a single-screw extruder.
2) The temperature of the single screw extruder is adjusted to be 265-280 ℃, and the extruded material is made into thick sheets. The thickness and the profile of the slab can be adjusted by the extrusion amount of an extruder, the rotating speed of a casting sheet roller and the opening degree of a die head.
3) Preheating the thick sheet at the temperature of 50-90 ℃, entering an infrared heating zone at the temperature of 300-500 ℃, and longitudinally stretching at the linear speed of 40-150 m/min, wherein the longitudinal stretching ratio is 4.0, so as to obtain the stretched sheet.
6) Preheating the stretched sheet at the temperature of 90-120 ℃, and transversely stretching the sheet at the temperature of 100-160 ℃, wherein the transverse stretching ratio is 3.8. Then shaping at 160-240 ℃, and cooling at 100-50 ℃ to obtain the blue-light-proof base film 2.
The method for producing the anti-violet base film 4 of the present invention will be further described below. The utility model discloses a preparation method of anti-purple light base film 4 includes following step:
1) mixing 90% of PET resin and 10% of anti-violet master batch, putting the mixture into a pre-crystallizer, pre-crystallizing the mixture for 15 minutes at the temperature of 160 ℃, then putting the PET material into a drying tower, drying the PET material for 6 hours at the temperature of 160 ℃, and then putting the PET material into a single-screw extruder.
2) The temperature of the single screw extruder is adjusted to 270-280 ℃, and the extruded material is made into thick sheets. The thickness and the profile of the slab can be adjusted by the extrusion amount of an extruder, the rotating speed of a casting sheet roller and the opening degree of a die head.
3) Preheating the thick sheet at the temperature of 50-90 ℃, entering an infrared heating zone at the temperature of 300-500 ℃, and longitudinally stretching at the linear speed of 40-150 m/min, wherein the longitudinal stretching ratio is 4.0, so as to obtain the stretched sheet.
6) Preheating the stretched sheet at the temperature of 90-120 ℃, and transversely stretching the sheet at the temperature of 100-160 ℃, wherein the transverse stretching ratio is 3.8. Then shaping at 160-240 ℃, and cooling at 100-50 ℃ to obtain the anti-violet basement membrane 4.
Prevent blue light base film 2 and prevent purple light base film 4 that preparation obtained can bond for compound base film through dyeing adhesive layer 3, then set up refraction cladding material 1 through technologies such as vacuum sputtering in its one side, set up pressure sensitive adhesive layer 5 at the another side, at last adhere to in the outside of pressure sensitive adhesive layer 5 from type membrane 6, can obtain at last as shown in figure 1 the utility model discloses a prevent visible light shortwave injury window membrane.
To sum up, the utility model discloses a cooperation of the double-deck base film that bonds to short wave in absorption, the separation visible light, especially blue light and blue or green, purple light, thereby can obtain a window membrane that can prevent the injury of visible light short wave. In addition, the utility model discloses can also adjust the basic tone of the window membrane after having absorbed blue and blue purple light through dyeing adhesive layer, make it be partial to as far as possible colorless transparent to do benefit to the window membrane and extensively be applicable to various occasions more easily.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (2)
1. The window film for preventing visible light short wave damage is characterized by sequentially comprising a refraction coating (1), a blue light prevention base film (2), a dyeing adhesive layer (3), a purple light prevention base film (4), a pressure-sensitive adhesive layer (5) and a release film (6) which are compounded into a whole from outside to inside, wherein the thickness of the window film is 158-538 mu m.
2. The window film of claim 1, wherein the refractive plating layer (1) has a thickness of 8 to 40 μm, the blue-light preventing base film (2) has a thickness of 50 to 180 μm, the dyed adhesive layer (3) has a thickness of 10 to 30 μm, the violet-light preventing base film (4) has a thickness of 50 to 180 μm, the pressure-sensitive adhesive layer (5) has a thickness of 30 to 50 μm, and the release film (6) has a thickness of 10 to 58 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022780952.3U CN214142162U (en) | 2020-11-26 | 2020-11-26 | Window film for preventing visible light short wave damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022780952.3U CN214142162U (en) | 2020-11-26 | 2020-11-26 | Window film for preventing visible light short wave damage |
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| Publication Number | Publication Date |
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| CN214142162U true CN214142162U (en) | 2021-09-07 |
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| CN202022780952.3U Active CN214142162U (en) | 2020-11-26 | 2020-11-26 | Window film for preventing visible light short wave damage |
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| CN (1) | CN214142162U (en) |
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