CN111399329B - Three-side film-watching intelligent screen for cinema and construction process thereof - Google Patents
Three-side film-watching intelligent screen for cinema and construction process thereof Download PDFInfo
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- CN111399329B CN111399329B CN202010350066.9A CN202010350066A CN111399329B CN 111399329 B CN111399329 B CN 111399329B CN 202010350066 A CN202010350066 A CN 202010350066A CN 111399329 B CN111399329 B CN 111399329B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
- C09J125/02—Homopolymers or copolymers of hydrocarbons
- C09J125/04—Homopolymers or copolymers of styrene
- C09J125/08—Copolymers of styrene
- C09J125/14—Copolymers of styrene with unsaturated esters
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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Abstract
The invention relates to the technical field of cinema screens, in particular to a three-side viewing intelligent screen for a cinema and a construction process thereof.
Description
Technical Field
The invention relates to the technical field of cinema screens, in particular to a three-side viewing intelligent screen for a cinema and a construction process thereof.
Background
A cinema is a venue where a movie is shown for an audience. At the beginning of the production of movies, movies were shown in places such as cafes and theaters. With the advancement and development of movies, movie theaters specially constructed for showing movies have appeared. The development of motion pictures, from silent to voiced to stereo, from black and white to colored, from plain to wide screen to dome and surround screens, has led to a great change in the form, size, proportions and acoustics of cinemas.
At present traditional cinema adopts the seat that the slope set up more to and set up a screen in the seat dead ahead, when spectator sits in this kind of movie theatre and sees the movie, can the picture appear on this piece of screen in dead ahead only, be the piece of black paint on the wall on both sides about being located the screen, give people and feel more single, suppress even. With the increasing requirements of the public on film viewing experience, picture texture, visual impact and audio-visual effect, the traditional cinema can not meet the increasing requirements of people on film viewing effect.
At present, cinema curtains are basically divided into four types: the first is a soft curtain, the second is a glass fiber curtain, the third is a woven white plastic curtain, and the fourth is a glass bead curtain. Firstly, a soft curtain: and is divided into a front projection soft screen and a rear projection soft screen. Most front projection drapes are white, while rear projection drapes are gray. The gray color of the rear projection soft screen is to reduce the reflection phenomenon of the direct light source so that the viewer can see more natural image quality, so the rear projection is gray and has significance. In general, front projection works better than rear projection. The PVC material specially used for projection has-best image quality regardless of a front projection or a rear projection soft screen, has the vividness and the softness of a glass fiber screen, and is both excellent. The method has the following characteristics: the soft curtain is not a surface coating, but a piece of special imaging PVC with thickness, so that the stereoscopic impression is very rich, and the picture quality is transparent. Is praised as DLP in the screen by the industry and is the first choice of the highest level screen. Because the curtain is not supported by any base cloth completely, the curtain is soft, so the curtain is made into a pull rope curtain with the functions of expanding and leveling, the curtain surface is more straight, or the curtain is made into a picture frame curtain, and the curtain is straightened by utilizing a spring of the picture frame curtain. The soft screen is characterized in that: bright and soft, three-dimensional transparent and DLP in the screen. Secondly, glass fiber screen: is divided into white glass fiber and grey glass fiber. The fabric is a base fabric woven by glass threads, and the surface layer is coated with a PVC material with a special projection effect. Because of the support of the glass fiber base fabric, the glass fiber base fabric does not need to be flattened and can be straightened after being naturally stretched. Its advantage is high effect to keep it straight even when the temp difference and climate change are large. The gain and contrast are increased due to the glass fiber base fabric. The white screen is bright in color and the gray screen can increase the contrast. The prior projection equipment is bright enough, and the gray screen can be selected under the condition of insufficient contrast, most high-definition projection equipment is true to real color at present, and the new generation high-definition projection equipment has enough contrast, so most people can select the white screen. The glass fiber curtain is widely used for high-end screens. The glass fiber curtain is characterized in that: the brightness is vivid and the contrast is high. Thirdly, weaving a white plastic curtain: it is divided into white curtain (also called white plastic) and gray curtain. The base fabric is woven by textile threads, and the surface layer is coated with PVC material with special projection effect. The method is widely applied to the fields of commerce and teaching. Fourthly, glass bead curtain: the fabric bottom is woven by textile threads, and glass beads are coated on the surface of the fabric bottom, so that the fabric bottom is mainly used for increasing the brightness, the contrast and the visual angle are poor, and the image quality is poorer than that of other curtains. The method is more used in bright places. Because commercial projection devices now have sufficient lumen light, the bead screen has become less and less popular, even though teaching has generally changed to a woven white plastic screen.
Therefore, in order to ensure the image quality of the curtain, the soft curtain, the glass fiber curtain and the woven white plastic curtain all need to use PVC materials, but the glass bead curtain does not use PVC materials, but the contrast and the visual angle are poor, the image quality is poorer than that of other curtains, and the curtain can not be used for cinema curtains.
As is well known, PVC materials have poor high temperature resistance and are easy to deform when working in a hotter environment; auxiliary agents such as heat stabilizers and the like are required to be added in the processing. Most PVC products are not suitable for being used for a long time at the temperature of more than 55 ℃, are relatively unstable polymers, can be degraded under the action of light and heat, can easily cause the temperature of a screen to rise after being projected for a long time by a projector, can slowly decompose hydrogen chloride gas at about 50 ℃, is harmful to human bodies, can be easily softened and loosened at high temperature, has poor aging resistance, can be hardened and embrittled at low temperature, and can cause air pollution because additives of gradual volatilization in the using process.
The PVC material has no sound absorption and flame retardant effects, and when the cinema is used, the cinema is provided with a plurality of projection halls, so that the noise between the projection halls is caused, the silence is poor, the audio-video independence of each cinema is influenced, and the viewing effect is influenced.
At present, a three-side screen is provided, although the appearance of audiences is improved to a certain extent, the three-side screen has intervals, and the displayed picture is not a complete continuous picture and still influences the appearance of the audiences.
Disclosure of Invention
Aiming at the defects of the prior art, the three-side viewing intelligent screen for the cinema and the construction process thereof are provided, the material is more environment-friendly, the screen is more durable, flame retardant, high in sound absorption coefficient, continuous in picture, clear in picture quality, and the viewing experience of audiences is effectively improved.
In order to solve the technical problem, the invention adopts the technical scheme that the three-side viewing intelligent screen for the cinema comprises a bottom plate arranged on the wall surface of the cinema and side plates which are symmetrically arranged at two sides of the bottom plate and are in seamless connection with the bottom plate, wherein alkali-resistant mesh cloth is arranged on the surface of the bottom plate and the surfaces of the two side plates, and a sand gathering layer for displaying the projection image of a projector is coated on the alkali-resistant mesh cloth.
The three-side viewing intelligent screen for the cinema comprises a sand-gathering sand layer and a sound-absorbing sand layer, wherein the sand-gathering sand layer comprises a water-based flame-retardant adhesive and the sound-absorbing sand bonded on the water-based flame-retardant adhesive.
The water-based flame-retardant adhesive for the three-side viewing intelligent screen for the cinema comprises the following components in percentage by weight: 22-28% of water-based styrene-acrylic emulsion, 5-8% of preservative, 10-13% of cellulose, 5-8% of AXE-60 type thickening agent, 3-5% of dispersant, 35-40% of softened water and multifunctional auxiliary agent AMP-955%.
The three-side viewing intelligent screen for the cinema comprises 80-85% of white marble sand grains, 0.23-0.26% of colorant and 10-13% of polyurethane adhesive, wherein the white marble sand grains are 20-40 meshes in thickness.
The mass ratio of the water-based flame-retardant adhesive to the white marble sand grains is 1: 7.5-9.
In the three-side viewing intelligent screen for the cinema, the thickness of the sand gathering layer is 2-4mm, the sound absorption coefficient is 0.6-0.85, the sizes of the micropores on the surface and inside of the sand gathering layer are 0.5-1.0mm, and the number of the micropores per square meter is 900-1200 ten thousand. The three-side viewing intelligent screen for the cinema is characterized in that the colorant is formed by mixing a black colorant and a navy colorant.
The above-mentioned a trilateral view intelligence screen for cinema, bottom plate and both sides board are centrifugal glass cotton board.
The construction process of the three-side viewing intelligent screen for the cinema comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing quantitative water-based styrene-acrylic emulsion and softened water in a stirring tank according to the weight percentage, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then sequentially adding the preservative, the dispersant, the cellulose, the multifunctional additive AMP-95 and the AXE-60 thickener into a stirring tank, and fully stirring for 15-20min at the stirring speed of 800-;
(4) preparing the sound-absorbing mortar material
Adding white marble sand, a coloring agent and a polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates.
The three-side viewing intelligent screen for the cinema and the preparation process thereof have the advantages that the screen is clear in image quality, more environment-friendly in material, more durable and free of PVC material, various defects of the PVC material are avoided, the surface sand layer thickness of a glass wool product is generally controlled to be about 2MM, and gaps among particles are about 20 meshes due to uneven thickness of sandstone particles, so that the product can ensure that the sound absorption coefficient reaches above 85%, the glass wool fiber can be prevented from leaking and falling, and the overall performance meets the acoustic environment requirement of public places. Because the high-purity centrifugal glass wool is a grade A non-combustible product, and the sandstone and the adhesive are non-combustible, the product can reach the flame retardant grade A, the angle between the bottom plate and the two side plates is 270 degrees, the bottom plate and the two side plates are in seamless butt joint, and the displayed picture is a complete and continuous picture, so that audiences feel personally on the scene.
8 percent of multifunctional auxiliary agent AMP-95, 1 is adopted in the water-based flame-retardant adhesive and is used as a strong co-dispersant which has a synergistic effect with the dispersant, so that the using amount of the dispersant can be reduced, and simultaneously, the foam of the adhesive in the preparation process is reduced due to the reduction of the using amount of the dispersant, so that the use of a defoaming agent is not needed in the preparation process, the adhesive can be volatilized from the adhesive after being dried, and pores are left on the adhesive; 2. the adhesive can be endowed with excellent pH value stability, the alkaline pH value of the adhesive is effectively maintained, and the corrosion of the seams and edges of a stirring barrel in the preparation process can be effectively inhibited; 3. contributes to the thickening effect of the cellulose thickener, and the amount of the thickener used in the system can be reduced by improving the thickening effect.
The sum of the water-based styrene-acrylic emulsion and the water in the water-based flame-retardant adhesive accounts for 57-68% of the water-based flame-retardant adhesive, and when the water-based adhesive is mixed with a certain amount of white marble sand grains, the water-based adhesive and the white marble sand grains are uniformly mixed, so that the adhesive is fully filled in gaps among the white marble sand grains. After the sandstone slurry is coated or sprayed on the centrifugal glass wool layer, the pores are generated in the gaps of the adhesive due to the evaporation of water, particularly the evaporation of the water in the gaps among the white marble sand grains, and the pores are enlarged along with the evaporation of the water, when the water is completely evaporated (the size of the pores among the white marble sand grains is 15-22 meshes), the residual adhesive can be tightly attached to the surrounding white marble sand grains to form a film layer for coating the white marble sand grains, the connection among the white marble sand grains is firmer, the mechanical strength of the sand gathering layer is further improved, and the compressive strength of the sand gathering layer is higher than 30 MPa.
The thickness of the sand gathering layer is 2mm-4mm, and under the thickness, the sandstone slurry can be quickly dried and shaped, so that the deformation of a sandstone layer caused by overlong drying time is prevented, the working efficiency is improved, and the fibers in the centrifugal glass wool are prevented from migrating out of the pores while a good sound absorption effect (the sound absorption coefficient is 0.5-0.85) is ensured. Meanwhile, the centrifugal glass wool board also has a sound absorption effect, so that when the sand gathering layer receives impact, the centrifugal glass wool board with better elasticity can reduce the probability of breakage of the sand gathering layer when the sand gathering layer receives impact, has strong impact resistance and is more durable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the connection between the bottom plate and the sand gathering layer;
FIG. 3 is a process flow diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in figures 1, 2 and 3, the intelligent fluorescent screen for three-side viewing of cinema comprises a bottom plate 1 arranged on the wall surface of the cinema, side plates 2 which are arranged at two sides of the bottom plate at symmetrical angles and are in seamless connection with the bottom plate, alkali-resistant mesh cloth 4 is arranged on the surface of the bottom plate and the surfaces of the two side plates, and a sand-gathering layer 3 for displaying projection images of a projector is coated on the alkali-resistant mesh cloth.
The sand gathering layer comprises a water-based flame-retardant adhesive and sound-absorbing sand bonded on the water-based flame-retardant adhesive.
The water-based flame-retardant adhesive comprises the following components in percentage by weight: 22-28% of water-based styrene-acrylic emulsion, 5-8% of preservative, 10-13% of cellulose, 5-8% of AXE-60 type thickening agent, 3-5% of dispersant, 35-40% of softened water and multifunctional auxiliary agent AMP-955%.
The sound absorption sand comprises 80-85% of white marble sand grains, 0.23-0.26% of colorant and 10-13% of polyurethane adhesive, wherein the white marble sand grains have the thickness of 20-40 meshes.
The mass ratio of the water-based flame-retardant adhesive to the white marble sand grains is 1: 7.5-9.
The thickness of the sand-gathering layer is 2-4mm, the sound absorption coefficient is 0.6-0.85, the sizes of the micropores on the surface and inside of the sand-gathering layer are 0.5-1.0mm, and the number of the micropores per square meter is 900-1200 ten thousand.
The colorant is formed by mixing a black colorant and a navy colorant, so that the contrast is increased, the color is more real, and the image quality is clearer.
The bottom plate and the two side plates are centrifugal glass wool plates.
The preservative is a water-soluble preservative, specifically one or two of sodium fluoride and a boron-chromium mixture, the cellulose is water-soluble cellulose, specifically one or two of hydroxymethyl cellulose and starch, and the dispersant is a water-soluble dispersant, specifically one or two of sodium hexametaphosphate and sodium tripolyphosphate.
The preparation process of the three-side viewing intelligent screen for the cinema comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing quantitative water-based styrene-acrylic emulsion and softened water in a stirring tank according to the weight percentage, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then sequentially adding the preservative, the dispersant, the cellulose, the multifunctional additive AMP-95 and the AXE-60 thickener into a stirring tank, and fully stirring for 15-20min at the stirring speed of 800-;
(4) preparing the sound-absorbing mortar material
Adding white marble sand, a coloring agent and a polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates.
In the case of the example 1, the following examples are given,
the preparation process of the three-side viewing intelligent screen for the cinema comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing 22% of water-based styrene-acrylic emulsion and 35% of softened water in a stirring tank, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then adding 5% of preservative, 3% of dispersant, 10% of cellulose, 5% of multifunctional auxiliary agent AMP-95 and 5% of AXE-60 thickening agent into a stirring tank in sequence, and fully stirring for 15-20min at the stirring speed of 800-;
(4) preparing the sound-absorbing mortar material
Adding 20-mesh white marble sand, 0.23% of colorant and 10% -13% of polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates. The leveling thickness is 2 mm.
Example 2
The construction process of the three-side viewing intelligent screen for the cinema comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing 25% of water-based styrene-acrylic emulsion and 38% of softened water in a stirring tank, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then, sequentially adding 6 percent of preservative, 4 percent of dispersant, 12 percent of cellulose, 7 percent of multifunctional additive AMP-95 and 6 percent of AXE-60 thickener into a stirring tank, and fully stirring for 15-20min at the stirring speed of 800-1200 r/min;
(4) preparing the sound-absorbing mortar material
Adding 30-mesh white marble sand, 0.25% of colorant and 12% of polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates. The leveling thickness is 3 mm.
Example 3
The preparation process of the three-side viewing intelligent screen for the cinema comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing 28% of water-based styrene-acrylic emulsion and 40% of softened water in a stirring tank, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then adding 8% of preservative, 5% of dispersant, 13% of cellulose, 9% of multifunctional auxiliary agent AMP-95 and 8% of AXE-60 thickening agent into a stirring tank in sequence, and fully stirring for 15-20min at the stirring speed of 800-;
(4) preparing the sound-absorbing mortar material
Adding 40-mesh white marble sand, 0.26% of colorant and 13% of polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates. The leveling thickness is 4 mm.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which can be made by those skilled in the art are also within the scope of the present invention.
Claims (7)
1. The utility model provides a trilateral intelligent screen of seeing that is used for cinema which characterized in that: including locating the bottom plate on the cinema wall, and be the curb plate that symmetrical angle located the bottom plate both sides and with bottom plate seamless connection, be equipped with alkali-resistant net cloth on bottom plate surface and both sides board surface, the coating has the sand layer that gathers that is used for showing the projecting apparatus projection image on alkali-resistant net cloth, gather the sand layer and include water-based fire-retardant adhesive and bond the sound absorption sand on water-based fire-retardant adhesive, water-based fire-retardant adhesive comprises following weight percent's composition: 22-28% of water-based styrene-acrylic emulsion, 5-8% of preservative, 10-13% of cellulose, 5-8% of AXE-60 type thickening agent, 3-5% of dispersant, 35-40% of softened water and multifunctional auxiliary agent AMP-955%.
2. The three-sided viewing intelligent screen for theaters as set forth in claim 1, wherein the sound absorption sand comprises 80% -85% of white marble sand grains, 0.23% -0.26% of coloring agent and 10% -13% of polyurethane adhesive, and the white marble sand grains have a size of 20-40 meshes.
3. The three-sided viewing intelligent screen for theaters of claim 2, wherein the mass ratio of the water-based flame retardant adhesive to the white marble grits is 1: 7.5-9.
4. The three-sided viewing intelligent screen for theaters as set forth in claim 3, wherein the thickness of the sand-gathering layer is 2-4mm, the sound absorption coefficient is 0.6-0.85, the sizes of the micro-pores on the surface and inside thereof are 0.5-1.0mm, and the number of micro-pores per square meter is 900-1200 ten thousand.
5. The three-sided viewing smart screen for theaters of claim 4 wherein the colorant is a blend of black colorant and navy colorant.
6. The three-sided viewing intelligent screen for theaters of claim 5 wherein the bottom and two side panels are centrifugal glass wool panels.
7. The construction process of the three-sided viewing intelligent screen for cinema according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) fixing the bottom plate and the two side plates on the wall surface of the cinema in a symmetrical angle, and tightly butting the joints of the bottom plate and the two side plates;
(2) fixing the alkali-resistant mesh cloth on the surfaces of the bottom plate and the two side plates;
(3) preparing water-based flame-retardant adhesive
A. Weighing quantitative water-based styrene-acrylic emulsion and softened water in a stirring tank according to the weight percentage, and fully stirring the water-based styrene-acrylic emulsion and the softened water for 5-10min at the stirring speed of 1000-1500 r/min;
B. then sequentially adding the preservative, the dispersant, the cellulose, the multifunctional additive AMP-95 and the AXE-60 thickener into a stirring tank, and fully stirring for 15-20min at the stirring speed of 800-;
(4) preparing the sound-absorbing mortar material
Adding white marble sand, a coloring agent and a polyurethane adhesive into a stirring tank, and fully stirring for 20-25min at the stirring speed of 800-;
(5) uniformly coating or spraying the sound-absorbing mortar material obtained in the step (4) on the surface of the bottom plate and the surfaces of the two side plates;
(6) and leveling the sound-absorbing mortar material smeared on the surface of the bottom plate and the surfaces of the two side plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010350066.9A CN111399329B (en) | 2020-04-28 | 2020-04-28 | Three-side film-watching intelligent screen for cinema and construction process thereof |
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| CN202010350066.9A CN111399329B (en) | 2020-04-28 | 2020-04-28 | Three-side film-watching intelligent screen for cinema and construction process thereof |
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| CN111399329A CN111399329A (en) | 2020-07-10 |
| CN111399329B true CN111399329B (en) | 2021-10-08 |
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| CN111497358A (en) * | 2020-04-28 | 2020-08-07 | 青岛博时阻燃织物有限公司 | High-flame-retardance sound-absorbing sandstone composite board and preparation method thereof |
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| CN110041780B (en) * | 2019-04-04 | 2021-12-07 | 重庆裕时科技有限公司 | Sound-absorbing composition, preparation method thereof and sound-absorbing coating containing sound-absorbing composition |
| CN211826887U (en) * | 2020-04-28 | 2020-10-30 | 青岛博时阻燃织物有限公司 | Three-side viewing intelligent screen for cinema |
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| CN101959826A (en) * | 2008-04-22 | 2011-01-26 | 拉法基石膏国际公司 | Be applicable to the arrangement mixture of acoustics matrix |
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