CN110746901A - Combined type shading adhesive and manufacturing process thereof - Google Patents
Combined type shading adhesive and manufacturing process thereof Download PDFInfo
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- CN110746901A CN110746901A CN201911101975.2A CN201911101975A CN110746901A CN 110746901 A CN110746901 A CN 110746901A CN 201911101975 A CN201911101975 A CN 201911101975A CN 110746901 A CN110746901 A CN 110746901A
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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Abstract
The invention discloses a combined shading glue and a manufacturing process thereof, wherein the combined shading glue comprises a pasting base layer, release paper and a waterproof layer, the release paper is pasted at the bottom of the pasting base layer, a filter layer is arranged at the top of the pasting base layer, a reinforced composite layer is arranged at the top of the filter layer, a wear-resistant layer is arranged at the top of the reinforced composite layer, and the waterproof layer is uniformly distributed at the outer side of the combined shading glue. According to the invention, the PC film is used as a pasting base layer, the flame-retardant insulation layer and the PET film are used as a wear-resistant layer, so that the abrasion of the shading glue is reduced, the pinkish red filter film, the yellow filter film and the cyan filter film are used for forming the filter layer, the three-primary-color filter films are overlapped into black in a light transmitting manner, and the carbon black and the ball clay which are uniformly distributed in the composite layer are enhanced in a matching manner, so that the light absorption effect of the shading glue is greatly improved, the heat insulation effect is effectively improved, the shading glue is prevented from being aged by heating, the service life of the shading glue is prolonged, the water stain.
Description
Technical Field
The invention relates to the technical field of shading glue production, in particular to a combined shading glue and a manufacturing process thereof.
Background
The mobile phone liquid crystal display mainly uses a Light Emitting Diode (LED) as a backlight source, wherein the LED belongs to an active luminous body, and the emitted high brightness white light is homogenized by a light guide plate and then sequentially passes through a vertical polarizer, a glass substrate, a liquid crystal layer, a light filter, a glass substrate and a horizontal polarizer to form screen output, so that rich-color pictures are displayed on the mobile phone liquid crystal display. However, in the edge area of the display, the light source is easily dispersed because the viewing angle is large, and the light efficiency at the edge of the display becomes low, causing the edge area to appear dark. In order to solve the above-mentioned problem, the light sources at the edge are concentrated, usually a layer of light-shielding adhesive film, i.e. a light-shielding adhesive tape, is attached to the outer frame of the display screen, and the black single-sided/double-sided adhesive tape with the light-shielding function adopts the black film manufactured by the unique printing process as the base material, has excellent shielding property and insulating property, and is suitable for fixing the LCD and the backlight source. The shading adhesive tape is a general name and is divided into shading adhesive tapes with various types and colors.
At present, when the light shading agent is actually used, the light shading agent is irradiated by a light source, is easy to age and break after being used for a long time, reduces the shading efficiency, has poor temperature resistance and has potential safety hazards.
Therefore, it is necessary to invent a combined light-shielding adhesive and a manufacturing process thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a combined shading glue and a manufacturing process thereof, wherein a PC film is used as a pasting base layer, the PC film is flame-retardant and insulating, a PET film is used as a wear-resistant layer, the abrasion of the shading glue is reduced, a pinkish red filter film, a yellow filter film and a cyan filter film are used for forming a filter layer, the three primary color filter films are transparent and superposed into black, and carbon black and ball clay which are uniformly distributed in a reinforced composite layer are matched, so that light is absorbed, heat energy transmission is isolated, the shading effect of the shading glue is greatly improved, heat is effectively insulated, the shading glue is prevented from being heated and aged, the service life of the shading glue is prolonged, a waterproof layer is arranged, water stain erosion is avoided, and the use safety of the shading.
In order to achieve the above purpose, the invention provides the following technical scheme: a combined type shading adhesive comprises a pasting base layer, release paper and a waterproof layer, wherein the release paper is pasted at the bottom of the pasting base layer, a filter layer is arranged at the top of the pasting base layer, a reinforced composite layer is arranged at the top of the filter layer, a wear-resistant layer is arranged at the top of the reinforced composite layer, and the waterproof layer is uniformly distributed on the outer side of the combined type shading adhesive;
the filter layer consists of a magenta filter film, a yellow filter film and a cyan filter film, and the magenta filter film, the yellow filter film and the cyan filter film are sequentially overlapped and distributed from top to bottom;
the reinforced composite layer is made of reinforced composite glue and reinforced fiber gauze, and the reinforced fiber gauze is arranged inside the reinforced composite glue;
the reinforced composite adhesive is prepared by compounding an optical transparent adhesive, a light absorption filler and a heat-resistant filler, wherein the compounding volume ratio of the optical transparent adhesive to the light absorption filler to the heat-resistant filler is 3:1-3: 1-2.
Preferably, the pasting base layer is a PC film, the wear-resistant layer is a PET film, and the waterproof layer is an acrylic acid waterproof coating.
Preferably, an optically transparent adhesive is arranged between the pasting base layer and the release paper, an optically transparent adhesive is arranged between the pasting base layer and the filter layer, an optically transparent adhesive is arranged between the filter layer and the reinforcing composite layer, and an optically transparent adhesive is arranged between the reinforcing composite layer and the wear-resistant layer.
Preferably, the magenta filter film and the yellow filter film and the cyan filter film are bonded through an optical transparent adhesive.
Preferably, the optical transparent adhesive is organic silicon resin adhesive, the light absorption filler is carbon black, the heat-resistant filler is ball clay, and the reinforcing fiber gauze is silk woven pieces.
Preferably, the thickness of pasting the basic unit sets up to 20-25um, the thickness of waterproof layer sets up to 1-3um, filter layer thickness sets up to 15-20um, and constitutes the magenta filter film, yellow filter film and the blue or green filter film thickness of filter layer and equals, reinforcing composite layer thickness sets up to 22-25um, the wearing layer thickness sets up to 15-20um, reinforcing fiber gauze thickness sets up to 20-22 um.
A manufacturing process of a combined type shading glue comprises the following specific operation steps:
the method comprises the following steps: cutting the production standard to be integral multiple of the shading glue to produce a PC film, a red filter film, a yellow filter film, a cyan filter film, a PET film and release paper with standard sizes, and preparing organic silicon resin glue, silk woven sheets, carbon black and ball clay for later use;
step two: uniformly sticking the magenta filter membrane, the yellow filter membrane and the cyan filter membrane through organic silicon resin glue, flattening and extruding air bubbles, erasing outside glue solution, and airing to prepare a filter layer for later use;
step three: preparing reinforced composite adhesive by using organic silicon resin adhesive, carbon black and ball clay, firstly adding the carbon black and the ball clay into the organic silicon resin adhesive according to a proportion, and uniformly stirring by using a stirrer in a medium-temperature environment to prepare the reinforced composite adhesive for later use;
step four: bonding a PC film and a filter layer by using organic silicon resin adhesive, spreading a silk woven sheet on the top of the filter layer, uniformly and flatly brushing reinforced composite adhesive on the silk woven sheet, then orderly placing a PET film corresponding to the filter layer, after extrusion bonding, flatly coating the organic silicon resin adhesive on the bottom of the PC film and bonding release paper, and scraping off excess materials outside each structural layer after each structural layer is solidified;
step five: cutting the shading adhesive into a standard strip according to the production size standard, and uniformly spraying an acrylic acid waterproof coating on the outer side of the shading adhesive tape cut into the strip, so that a waterproof film is formed on the outer side;
step six: and (4) rolling the combined shading adhesive tape with the waterproof film to finish the preparation of the combined shading adhesive.
Preferably, the particle sizes of the carbon black and the ball clay in the first step are both set to be nano-scale.
Preferably, the medium-temperature environment in the third step is set to be 30-60 ℃, the rotating speed of the stirrer is 350r/s, and the stirring time is set to be 20-30 min.
In the technical scheme, the invention provides the following technical effects and advantages:
1. the PC film is used as a pasting base layer, the flame-retardant insulation layer is adopted, the PET film is used as a wear-resistant layer, the abrasion of the shading glue is reduced, a pinkish red filter film, a yellow filter film and a cyan filter film are used for forming a filter layer, the three primary color filter films are overlapped into black in a light transmission mode and are matched with carbon black and ball clay which are uniformly distributed in a reinforcing composite layer, light is absorbed, heat energy transmission is isolated simultaneously, the shading effect of the shading glue is greatly improved, the shading glue is effectively insulated, the shading glue is prevented from being aged by heating, the service life of the shading glue is prolonged, the tensile strength of the shading glue is enhanced by the fiber gauze, the tearing and the deformation of the shading glue are prevented, and the;
2. through the process, the integral multiple of the combined shading glue with the standard production size is prepared, then the large combined shading glue is cut, and then the acrylic acid waterproof coating is uniformly sprayed on the outer side of the segmented shading glue, so that the production efficiency and the overall quality are improved, and the combined shading glue is moisture-proof and damp-proof and is convenient to popularize and use.
Drawings
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of the overall structure of the present invention.
Description of reference numerals:
1 pasting a base layer, 2 releasing paper, 3 waterproof layers, 4 filter layers, 5 reinforcing composite layers, 6 wear-resistant layers and 7 reinforcing fiber gauze.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a combined type shading adhesive as shown in figure 1, which comprises a pasting base layer 1, release paper 2 and a waterproof layer 3, wherein the release paper 2 is pasted at the bottom of the pasting base layer 1, a filter layer 4 is arranged at the top of the pasting base layer 1, a reinforced composite layer 5 is arranged at the top of the filter layer 4, a wear-resistant layer 6 is arranged at the top of the reinforced composite layer 5, and the waterproof layer 3 is uniformly distributed at the outer side of the combined type shading adhesive;
the filter layer 4 consists of a magenta filter film, a yellow filter film and a cyan filter film, and the magenta filter film, the yellow filter film and the cyan filter film are sequentially overlapped and distributed from top to bottom;
the reinforced composite layer 5 is made of reinforced composite glue and reinforced fiber gauze 7, and the reinforced fiber gauze 7 is arranged inside the reinforced composite glue;
further, in the above technical scheme, paste basic unit 1 and set up to the PC film, wearing layer 6 sets up to the PET film, waterproof layer 3 sets up to acrylic acid waterproof coating.
Further, in the above technical solution, an optically transparent adhesive is disposed between the pasting base layer 1 and the release paper 2, an optically transparent adhesive is disposed between the pasting base layer 1 and the filter layer 4, an optically transparent adhesive is disposed between the filter layer 4 and the reinforcing composite layer 5, and an optically transparent adhesive is disposed between the reinforcing composite layer 5 and the wear layer 6.
Furthermore, in the above technical solution, the magenta filter film and the yellow filter film and the cyan filter film are bonded together by an optical transparent adhesive.
Further, in the above technical scheme, the optical transparent adhesive is an organic silicon resin adhesive, the light absorbing filler is carbon black, the heat resistant filler is ball clay, and the reinforcing fiber gauze 7 is a silk woven sheet.
A manufacturing process of a combined type shading glue comprises the following specific operation steps:
the method comprises the following steps: cutting the PC film, the red filter film, the yellow filter film, the cyan filter film, the PET film and the release paper 2 which are integer times of the production standard of the shading glue production size standard, and preparing organic silicon resin glue, silk woven sheets, carbon black and ball clay, wherein the particle sizes of the carbon black and the ball clay are set to be nanoscale for later use;
step two: uniformly sticking the magenta filter membrane, the yellow filter membrane and the cyan filter membrane through organic silicon resin glue, flattening and extruding air bubbles, erasing outside glue solution, and airing to prepare a filter layer 4 for later use;
step three: preparing reinforced composite adhesive by using organic silicon resin adhesive, carbon black and ball clay, firstly adding the carbon black and the ball clay into the organic silicon resin adhesive according to a proportion, and uniformly stirring by using a stirrer in a medium-temperature environment to prepare the reinforced composite adhesive for later use;
step four: bonding the PC film and the filter layer 4 by using organic silicon resin adhesive, flatly spreading a silk woven sheet on the top of the filter layer 4, uniformly and flatly brushing reinforced composite adhesive on the silk woven sheet, then orderly placing the PET film corresponding to the filter layer 4, flatly coating the organic silicon resin adhesive on the bottom of the PC film and bonding release paper 2 after extrusion bonding, and scraping off excess materials outside each structural layer after each structural layer is solidified;
step five: cutting the shading adhesive into a standard strip according to the production size standard, and uniformly spraying an acrylic acid waterproof coating on the outer side of the shading adhesive tape cut into the strip, so that a waterproof film is formed on the outer side;
step six: and (4) rolling the combined shading adhesive tape with the waterproof film to finish the preparation of the combined shading adhesive.
Example 1:
the invention provides a combined type shading adhesive which comprises a pasting base layer 1, release paper 2 and a waterproof layer 3, wherein the release paper 2 is pasted at the bottom of the pasting base layer 1, a filter layer 4 is arranged at the top of the pasting base layer 1, a reinforced composite layer 5 is arranged at the top of the filter layer 4, a wear-resistant layer 6 is arranged at the top of the reinforced composite layer 5, and the waterproof layer 3 is uniformly distributed at the outer side of the combined type shading adhesive;
further, in the above technical scheme, the reinforced composite adhesive is prepared by compounding an optically transparent adhesive, a light absorbing filler and a heat-resistant filler, and the volume ratio of the combination of the optically transparent adhesive, the light absorbing filler and the heat-resistant filler is set to 3:1: 1.
Further, in the above technical solution, the thickness of the pasting base layer 1 is set to 20um, the thickness of the waterproof layer 3 is set to 1um, the thickness of the filter layer 4 is set to 15um, and the thickness of the magenta filter film, the yellow filter film and the cyan filter film which form the filter layer 4 is equal, the thickness of the reinforcing composite layer 5 is set to 22um, the thickness of the wear-resistant layer 6 is set to 15um, and the thickness of the reinforcing fiber gauze 7 is set to 20 um;
furthermore, the middle-medium temperature environment in the third step of the preparation process is set to be 30 ℃, the rotating speed of the stirrer is 300r/s, and the stirring time is set to be 20 min.
In addition, performance tests on the combined shading glue prepared in the embodiment show that the combined shading glue has the thickness of 80 +/-3 microns, completely shades within the range of visible light wavelength of 400 + 700rm, has the tensile strength of 160MPa, has the adhesive force of 2150gf/in after 72 hours at 85 ℃, has the adhesive force of 2050gf/in after 90% and 120 hours at 85 ℃, has excellent cold and heat shock resistance, stable and unchanged performance and has the flame retardant rating of V-2.
Example 2:
the invention provides a combined type shading adhesive which comprises a pasting base layer 1, release paper 2 and a waterproof layer 3, wherein the release paper 2 is pasted at the bottom of the pasting base layer 1, a filter layer 4 is arranged at the top of the pasting base layer 1, a reinforced composite layer 5 is arranged at the top of the filter layer 4, a wear-resistant layer 6 is arranged at the top of the reinforced composite layer 5, and the waterproof layer 3 is uniformly distributed at the outer side of the combined type shading adhesive;
further, in the above technical scheme, the reinforced composite adhesive is prepared by compounding an optically transparent adhesive, a light absorbing filler and a heat-resistant filler, and the volume ratio of the combination of the optically transparent adhesive, the light absorbing filler and the heat-resistant filler is set to 6:4: 3.
Further, in the above technical solution, the thickness of the pasting base layer 1 is set to 23um, the thickness of the waterproof layer 3 is set to 2um, the thickness of the filter layer 4 is set to 18um, and the thickness of the magenta filter film, the yellow filter film and the cyan filter film which form the filter layer 4 are equal, the thickness of the reinforcing composite layer 5 is set to 23um, the thickness of the wear-resistant layer 6 is set to 18um, and the thickness of the reinforcing fiber gauze 7 is set to 21 um;
furthermore, the middle-intermediate temperature environment in the third step of the preparation process is set to be 45 ℃, the rotating speed of the stirrer is 325r/s, and the stirring time is set to be 25 min.
Compared with the embodiment 1, the combined type shading glue prepared in the embodiment has strong adhesive force, strong holding power, good mode effect, difficult moisture decomposition after bonding, convenient storage and long-time use, good insulativity and high safety factor, in addition, the combined type shading glue prepared in the embodiment is tested in performance, the result shows that the combined type shading glue has the thickness of 88 +/-3 um, complete shading in the visible light wavelength range of 400-plus 700rm, the tensile strength of 165MPa, the adhesive force of 2200gf/in after 85 ℃ for 72 hours, the adhesive force of 2090gf/in after 85 ℃ humidity of 90% for 120 hours, excellent cold and heat shock resistance, stable and unchanged performance and the flame retardant grade of V-2.
Example 3:
the invention provides a combined type shading adhesive which comprises a pasting base layer 1, release paper 2 and a waterproof layer 3, wherein the release paper 2 is pasted at the bottom of the pasting base layer 1, a filter layer 4 is arranged at the top of the pasting base layer 1, a reinforced composite layer 5 is arranged at the top of the filter layer 4, a wear-resistant layer 6 is arranged at the top of the reinforced composite layer 5, and the waterproof layer 3 is uniformly distributed at the outer side of the combined type shading adhesive;
further, in the above technical scheme, the reinforced composite adhesive is prepared by compounding an optically transparent adhesive, a light absorbing filler and a heat-resistant filler, and the volume ratio of the combination of the optically transparent adhesive, the light absorbing filler and the heat-resistant filler is set to 3:3: 2.
Further, in the above technical solution, the thickness of the pasting base layer 1 is set to 25um, the thickness of the waterproof layer 3 is set to 3um, the thickness of the filter layer 4 is set to 20um, and the thickness of the magenta filter film, the yellow filter film and the cyan filter film which form the filter layer 4 are equal, the thickness of the reinforcing composite layer 5 is set to 25um, the thickness of the wear-resistant layer 6 is set to 20um, and the thickness of the reinforcing fiber gauze 7 is set to 22 um;
further, the middle-temperature environment in the third step of the preparation process is set to be 30-60 ℃, the rotating speed of the stirrer is 300-350r/s, and the stirring time is set to be 20-30 min.
Comparing examples 1 and 2, the combined type shading glue prepared in the embodiment has strong adhesion force, strong holding power, good mode effect, difficult decomposition by moisture after bonding, convenient storage and long-term use, good insulativity and high safety factor, in addition, the combined type shading glue prepared in the embodiment is tested for performance, the result shows that the combined type shading glue has the thickness of 97 +/-3 um, completely shades light in the visible light wavelength range of 400 + 700rm, the tensile strength of 163Mpa, the adhesive force of 2180gf/in after 72 hours at 85 ℃, the adhesive force of 2090gf/in after 120 hours at 90% humidity at 85 ℃, the cold and heat shock resistance is excellent, the performance is stable and has no change, and the flame retardant grade is V-2.
The following table is obtained according to examples 1 to 3:
as can be seen from the above table, in example 2, the raw materials have a moderate proportion and the processing temperature is moderate, the combined type light-shielding adhesive produced and prepared by the process of this example has the best overall performance, which is embodied by a moderate thickness, can completely shield light while saving materials, has the highest tensile strength, and has guaranteed temperature and humidity resistance in extreme environments, and uses a PC film as the adhesive base layer 1, flame-retardant and insulating properties, a PET film as the wear-resistant layer 6, reduces the abrasion of the light-shielding adhesive, uses a magenta filter film, a yellow filter film and a cyan filter film to form the filter layer 4, the three-primary-color filter films are transparent and black, and cooperate with carbon black and ball clay which are uniformly distributed in the reinforcing composite layer 5, absorbs light and isolates heat energy transmission, thereby greatly improving the light-shielding effect of the light-shielding adhesive, effectively insulating heat, preventing the light-shielding adhesive from being heated and, avoid water stain erosion, improve the security that the shading was glued and use.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive, and any modifications, equivalents, improvements and the like that come within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The utility model provides a modular shading glue, is including pasting basic unit (1), from type paper (2) and waterproof layer (3), its characterized in that: release paper (2) is bonded to the bottom of the bonding base layer (1), a filter layer (4) is arranged on the top of the bonding base layer (1), a reinforcing composite layer (5) is arranged on the top of the filter layer (4), a wear-resistant layer (6) is arranged on the top of the reinforcing composite layer (5), and the waterproof layer (3) is uniformly distributed on the outer side of the combined shading glue;
the filter layer (4) consists of a magenta filter film, a yellow filter film and a cyan filter film, and the magenta filter film, the yellow filter film and the cyan filter film are sequentially overlapped and distributed from top to bottom;
the reinforced composite layer (5) is made of reinforced composite glue and reinforced fiber gauze (7), and the reinforced fiber gauze (7) is arranged inside the reinforced composite glue;
the reinforced composite adhesive is prepared by compounding an optical transparent adhesive, a light absorption filler and a heat-resistant filler, wherein the compounding volume ratio of the optical transparent adhesive to the light absorption filler to the heat-resistant filler is 3:1-3: 1-2.
2. The combination shading glue of claim 1, wherein: paste basic unit (1) and set up to the PC film, wearing layer (6) set up to the PET film, waterproof layer (3) set up to acrylic acid waterproof coating.
3. The combination shading glue of claim 1, wherein: the optical transparent adhesive is arranged between the pasting base layer (1) and the release paper (2), the optical transparent adhesive is arranged between the pasting base layer (1) and the filter layer (4), the optical transparent adhesive is arranged between the filter layer (4) and the reinforcing composite layer (5), and the optical transparent adhesive is arranged between the reinforcing composite layer (5) and the wear-resistant layer (6).
4. The combination shading glue of claim 1, wherein: the magenta filter film and the yellow filter film are adhered to each other, and the yellow filter film and the cyan filter film are adhered to each other through an optical transparent adhesive.
5. The combination shading glue of claim 1, wherein: the optical transparent adhesive is organic silicon resin adhesive, the light absorption filler is carbon black, the heat-resistant filler is ball clay, and the reinforcing fiber gauze (7) is silk woven pieces.
6. The combination shading glue of claim 1, wherein: paste the thickness of basic unit (1) and set up to 20-25um, the thickness of waterproof layer (3) sets up to 1-3um, filter layer (4) thickness sets up to 15-20um, and constitutes the fuchsine filter coating, yellow filter coating and the blue or green filter coating thickness of filter layer (4) and equals, reinforcing composite bed (5) thickness sets up to 22-25um, wearing layer (6) thickness sets up to 15-20um, reinforcing fiber gauze (7) thickness sets up to 20-22 um.
7. A manufacturing process of combined shading glue is characterized in that: the specific operation steps are as follows:
the method comprises the following steps: cutting an integral multiple of the production standard to produce a PC film, a red filter film, a yellow filter film, a cyan filter film, a PET film and release paper (2) with standard sizes of shading glue, and preparing organic silicon resin glue, silk woven sheets, carbon black and ball clay for later use;
step two: uniformly sticking the magenta filter membrane, the yellow filter membrane and the cyan filter membrane through organic silicon resin glue, flattening and extruding air bubbles, erasing outside glue solution, and airing to prepare a filter layer (4) for later use;
step three: preparing reinforced composite adhesive by using organic silicon resin adhesive, carbon black and ball clay, firstly adding the carbon black and the ball clay into the organic silicon resin adhesive according to a proportion, and uniformly stirring by using a stirrer in a medium-temperature environment to prepare the reinforced composite adhesive for later use;
step four: bonding a PC film and a filter layer (4) by using organic silicon resin adhesive, flatly paving a silk woven sheet on the top of the filter layer (4), then uniformly and flatly brushing reinforced composite adhesive on the silk woven sheet, then orderly placing a PET film corresponding to the filter layer (4), flatly coating the organic silicon resin adhesive on the bottom of the PC film and bonding release paper (2) after extrusion bonding, and scraping the residual material outside each structural layer after each structural layer is solidified;
step five: cutting the shading adhesive into a standard strip according to the production size standard, and uniformly spraying an acrylic acid waterproof coating on the outer side of the shading adhesive tape cut into the strip, so that a waterproof film is formed on the outer side;
step six: and (4) rolling the combined shading adhesive tape with the waterproof film to finish the preparation of the combined shading adhesive.
8. The process of claim 7, wherein: in the first step, the particle sizes of the carbon black and the ball clay are set to be nano-scale.
9. The process of claim 7, wherein: the medium-temperature environment in the third step is set to be 30-60 ℃, the rotating speed of the stirrer is 350r/s, and the stirring time is set to be 20-30 min.
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| CN113736267A (en) * | 2021-09-27 | 2021-12-03 | 世晨材料技术(上海)有限公司 | Reversibly-stretched shading organic silicon film and preparation method thereof |
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