CN101935429B - Rear projection screen - Google Patents
Rear projection screen Download PDFInfo
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- CN101935429B CN101935429B CN2010102905359A CN201010290535A CN101935429B CN 101935429 B CN101935429 B CN 101935429B CN 2010102905359 A CN2010102905359 A CN 2010102905359A CN 201010290535 A CN201010290535 A CN 201010290535A CN 101935429 B CN101935429 B CN 101935429B
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Abstract
The invention relates to a rear projection screen which is obtained from performing burdening, stirring, plastic mixing, plasticizing and film production on raw materials, wherein the raw materials can be PVC resin, extinction PVC resin, plasticizer, organic flame-retarded oil, inorganic flame retardants, antioxidant heat stabilizer, light stabilizer, calcium carbonate, powder stabilizer and plasticizing accelerator. The rear projection screen overcomes multiple disadvantages of the traditional screen project material; when the screen is in use, light beams come from the rear to ensure that the front has the optimal viewing effect, the diffuse reflection and photopermeability of optical lines achieve excellent effects through embossing and controlling the material ratio, and colors are clear and saturated, therefore, the screen has the display effect of a liquid crystal display, and a user can not feel fatigue after long-time viewing; the screen does not reflect light, thus satisfying audiences to obtain good viewing effect within a plane angle of 180 degrees; and the light beams can be conveniently fused and spliced so as to achieve the requirement of greater projection effect.
Description
Technical field
The present invention relates to a kind of rear-projection projection screen.
Background technology
Along with the continuous progress and the development of society, also increasingly high to the requirement of industries such as education, style, video display and medium.Except the basic function of product is required, pay attention to functionalization, the hommization of product gradually, strengthened pursuit to aspects such as environmental protection, energy-conservation, health.
Traditional projection material all is a pre-projecting type, is the material of therebetween screen cloth, and its defective is:
1, reflective easily, it is clear that image can't reach nature, watches fatiguability;
2, diffuse effect is poor, generally only just has appreciation effect at the 45 degree with interior;
3, screen can not splice, and the width of cloth is the wideest can only arrive 3.0 meters for door, can not adapt to the application of large-scale occasion.
Summary of the invention
It is good that technical matters to be solved by this invention provides a kind of viewing effect, watches scope big, the rear-projection projection screen that the breadth width is big.
Technical scheme of the present invention is: a kind of rear-projection projection screen, and to mould, plastify and make film through each raw material being prepared burden, stir, refining and get, described parts by weight of raw materials proportioning is:
75～85 parts of polyvinyl chloride resins;
15～25 parts of delustring polyvinyl chloride resins;
25～35 parts in plastifier;
30～40 parts of organic fire-resisting oil;
3～7 parts of inorganic combustion inhibitors;
Antioxidizing thermal stabilizer 0.3～0.8;
5～8 parts of light stabilizers;
15～20 parts in lime carbonate;
0.3～0.8 part of powder stabilizing agent;
1～3 part of plasticizing promoter.
The present invention mixes use with matting resin with non-matting resin, and delustring polyvinyl chloride resin can improve the strong excessively optical reflection of common PVC resin.Preferably, described polyvinyl chloride resin and delustring polyvinyl chloride resin K value are 69～71.
Lime carbonate of the present invention is the transmittance that is used to control the rear-projection curtain, i.e. not only reflecting part light but also allow part light to see through, thereby its consumption is vital in the present invention.
Preferably, described organic fire-resisting oil is mixed by tricresyl phosphate and triisopropyl phosphate, and described inorganic combustion inhibitor is a hydrate of aluminium.Tricresyl phosphate also plays the effect of plastifier simultaneously.Use by organic fire-resisting oil and inorganic combustion inhibitor collocation among the present invention, the inorganic combustion inhibitor good flame retardation effect, but consumption is crossed the affects light transmission, thereby adopt proportioning of the present invention can realize best flame retardant effect.
Preferably, described antioxidizing thermal stabilizer is a phosphite ester kind antioxidant, and described light stabilizer is barium-zinc liquid stabilizer.
Preferably, described plastifier is a diisononyl phthalate.
Preferably, described raw material also contains the pigment of 0.2～0.3 weight portion.Pigment is used to make the manufactured goods projection screen to have to be suitable for the color that the people watches most, and the general pigment of recommending is the celadon colorant.
Preferably, described rear-projection projection screen is got by following step preparation:
(1) batching, with each raw material by the metering than carrying out weigh batching;
(2) stir: material gets into homo-mixer, carries out high-speed stirred earlier, carries out stirring at low speed again, makes material form the dispersion of homogeneous;
(3) refining is moulded: the dispersion of homogeneous gets into ten thousand horsepowers of plastics processing mills automatically through pipeline, and further refining is moulded dough under the shearing of weight and rotor;
(4) plasticizing: dough is delivered to rolls turbine (A); Material is become homogeneous phase by the mill fluxing in a step under the running roller of running relatively; Send into extruding filter by belt conveyor; Further shear plasticizing through screw rod, and by the die head extruded material that the secondary filter net has been installed to rolling turbine (B), rolled two in turbine (B) relatively the running rollers of running shear and further plastified;
(5) system film: the material that plasticizing is good is transported to by conveying belt in the calender that is made up of four pressure rollers, and material is tentatively drawn required film material by four pressure roller roll-ins successively through spacing and the draw ratio of controlling each roller; The film material further stretches and plasticizing through drawing wheel; After decorative pattern iron tyre and rubber wheel embossing, get into temperature refining wheel and discharge internal stress, and then cool off one by one through cooling wheel; Through both sides all to cutting edge, through automatic winding device rolling.
The embossing of step (5) is vital, makes projection screen surface form rough decorative pattern through embossing, makes light be able to diffuse reflection like this and viewing angle is increased, and can reach about 180 degree.
Preferably, said working temperature of rolling turbine (A) is 170 ℃ ± 5 ℃, and the working temperature of extruding filter is 160 ± 5 ℃, and the working temperature of rolling turbine (B) is 165 ± 5 ℃; In the calender, 1# roller working temperature is 185 ± 5 ℃, and 2# roller working temperature is 190 ± 5 ℃, and 3# roller working temperature is 175 ± 5 ℃, and 4# roller working temperature is 170 ± 5 ℃; Rubber wheel, temperature refining wheel and cooling wheel are the water cooling temperature.
Preferably, described parts by weight of raw materials proportioning is:
80 parts of polyvinyl chloride resins;
20 parts of delustring polyvinyl chloride resins;
30 parts of diisononyl phthalates;
20 parts of tricresyl phosphates;
16 parts of triisopropyl phosphates;
5 parts of hydrate of aluminium;
Phosphite ester kind antioxidant 0.5;
6.5 parts of barium-zinc liquid stabilizers;
17 parts in lime carbonate;
0.5 part of powder stabilizing agent;
2 parts of plasticizing promoter;
0.28 part of pigment.
Rear-projection projection screen of the present invention has overcome many deficiencies of conventional screen projection material, and light beam is made from the rear during use, and the place ahead has best viewing effect, and its beneficial effect is:
1, make light diffuse reflection and printing opacity reach excellent results through embossing and control material proportion, color is clear, saturated, has the display effect of LCD, watches not tired for a long time;
2, not reflective, satisfying spectators has good viewing effect in the plane angle of 180 degree;
3, fusion splicing easily is to reach the requirement of bigger drop shadow effect.
Embodiment
Below in conjunction with embodiment the present invention is described further, but protection scope of the present invention is not limited to this.
Embodiment 1
A kind of rear-projection projection screen is got by following step preparation:
(1) batching, with each raw material by the metering than carrying out weigh batching; Described parts by weight of raw materials proportioning is:
80 parts of polyvinyl chloride resins;
20 parts of delustring polyvinyl chloride resins;
30 parts of diisononyl phthalates;
20 parts of tricresyl phosphates;
16 parts of triisopropyl phosphates;
5 parts of hydrate of aluminium;
0.5 part of phosphite ester kind antioxidant;
6.5 parts of barium-zinc liquid stabilizers;
17 parts in lime carbonate;
0.5 part of powder stabilizing agent;
2 parts of plasticizing promoter;
0.28 part of pigment.
(2) stir: material gets into homo-mixer, carries out high-speed stirred earlier, carries out stirring at low speed again, makes material form the dispersion of homogeneous;
(3) refining is moulded: the dispersion of homogeneous gets into ten thousand horsepowers of plastics processing mills automatically through pipeline, and further refining is moulded dough under the shearing of weight and rotor;
(4) plasticizing: dough is delivered to rolls turbine (A); Material is become homogeneous phase by the mill fluxing in a step under the running roller of running relatively; Send into extruding filter by belt conveyor; Further shear plasticizing through screw rod, and by the die head extruded material that the secondary filter net has been installed to rolling turbine (B), rolled two in turbine (B) relatively the running rollers of running shear and further plastified;
(5) system film: the material that plasticizing is good is transported to by conveying belt in the calender that is made up of four pressure rollers, and material is tentatively drawn required film material by four pressure roller roll-ins successively through spacing and the draw ratio of controlling each roller; The film material further stretches and plasticizing through drawing wheel; After decorative pattern iron tyre and rubber wheel embossing, get into temperature refining wheel and discharge internal stress, and then cool off one by one through cooling wheel; Through both sides all to cutting edge, through automatic winding device rolling.
Said working temperature of rolling turbine (A) is 170 ℃, and the working temperature of extruding filter is 160 ℃, and the working temperature of rolling turbine (B) is 165 ℃; In the calender, 1# roller working temperature is 185 ℃, and 2# roller working temperature is 190 ℃, and 3# roller working temperature is 175 ℃, and 4# roller working temperature is 170 ℃; Rubber wheel, temperature refining wheel and cooling wheel are the water cooling temperature.
Embodiment 2
A kind of rear-projection projection screen is got by following step preparation:
(1) batching, with each raw material by the metering than carrying out weigh batching; Described parts by weight of raw materials proportioning is:
82 parts of polyvinyl chloride resins;
18 parts of delustring polyvinyl chloride resins;
30 parts of diisononyl phthalates;
20 parts of tricresyl phosphates;
15 parts of triisopropyl phosphates;
5 parts of hydrate of aluminium;
0.5 part of phosphite ester kind antioxidant;
6.5 parts of barium-zinc liquid stabilizers;
17 parts in lime carbonate;
0.5 part of powder stabilizing agent;
2 parts of plasticizing promoter;
(2) stir: material gets into homo-mixer, carries out high-speed stirred earlier, carries out stirring at low speed again, makes material form the dispersion of homogeneous;
(3) refining is moulded: the dispersion of homogeneous gets into ten thousand horsepowers of plastics processing mills automatically through pipeline, and further refining is moulded dough under the shearing of weight and rotor;
(4) plasticizing: dough is delivered to rolls turbine (A); Material is become homogeneous phase by the mill fluxing in a step under the running roller of running relatively; Send into extruding filter by belt conveyor; Further shear plasticizing through screw rod, and by the die head extruded material that the secondary filter net has been installed to rolling turbine (B), rolled two in turbine (B) relatively the running rollers of running shear and further plastified;
(5) system film: the material that plasticizing is good is transported to by conveying belt in the calender that is made up of four pressure rollers, and material is tentatively drawn required film material by four pressure roller roll-ins successively through spacing and the draw ratio of controlling each roller; The film material further stretches and plasticizing through drawing wheel; After decorative pattern iron tyre and rubber wheel embossing, get into temperature refining wheel and discharge internal stress, and then cool off one by one through cooling wheel; Through both sides all to cutting edge, through automatic winding device rolling.
Said working temperature of rolling turbine (A) is 172 ℃, and the working temperature of extruding filter is 160 ℃, and the working temperature of rolling turbine (B) is 168 ℃; In the calender, 1# roller working temperature is 186 ℃, and 2# roller working temperature is 190 ℃, and 3# roller working temperature is 176 ℃, and 4# roller working temperature is 170 ℃; Rubber wheel, temperature refining wheel and cooling wheel are the water cooling temperature.
Claims (7)
1. rear-projection projection screen is characterized in that moulding, plastifying and make film through each raw material being prepared burden, stir, refining getting,
Described parts by weight of raw materials proportioning is:
75～85 parts of polyvinyl chloride resins;
15～25 parts of delustring polyvinyl chloride resins;
25～35 parts in plastifier;
30～40 parts of organic fire-resisting oil;
3～7 parts of inorganic combustion inhibitors;
0.3～0.8 part of antioxidizing thermal stabilizer;
5～8 parts of light stabilizers;
15～20 parts in lime carbonate;
0.3～0.8 part of powder stabilizing agent;
1～3 part of plasticizing promoter.
2. according to the described rear-projection projection screen of claim 1, it is characterized in that: described PVC resin and delustring PVC resin K value are 69～71.
3. according to the described rear-projection projection screen of claim 1, it is characterized in that: described organic fire-resisting oil is mixed by tricresyl phosphate and triisopropyl phosphate, and described inorganic combustion inhibitor is a hydrate of aluminium.
4. according to the described rear-projection projection screen of claim 1, it is characterized in that: described antioxidizing thermal stabilizer is a phosphite ester kind antioxidant, and described light stabilizer is barium-zinc liquid stabilizer.
5. according to the described rear-projection projection screen of claim 1, it is characterized in that: described plastifier is a diisononyl phthalate.
6. according to the described rear-projection projection screen of claim 1, it is characterized in that making by following step:
(1) batching, with each raw material by the metering than carrying out weigh batching;
(2) stir: material gets into homo-mixer, carries out high-speed stirred earlier, carries out stirring at low speed again, makes material form homogeneous
Dispersion;
(3) refining is moulded: the dispersion of homogeneous gets into ten thousand horsepowers of plastics processing mills automatically through pipeline, and further refining is moulded dough under the shearing of weight and rotor;
(4) plasticizing: dough is delivered to rolls turbine A; Material is become homogeneous phase by the mill fluxing in a step under the running roller of running relatively; Send into extruding filter by belt conveyor; Further shear plasticizing through screw rod, and by the die head extruded material that the secondary filter net has been installed to rolling turbine B, rolled two of turbine B relatively the running rollers of running shear and further plastified;
(5) system film: the material that plasticizing is good is transported to by conveying belt in the calender that is made up of four pressure rollers, and material is tentatively drawn required film material by four pressure roller roll-ins successively through spacing and the draw ratio of controlling each roller; The film material further stretches and plasticizing through drawing wheel; After decorative pattern iron tyre and rubber wheel embossing, get into temperature refining wheel and discharge internal stress, and then cool off one by one through cooling wheel; Through both sides all to cutting edge, through automatic winding device rolling.
7. according to the described rear-projection projection of claim 6 film, it is characterized in that: said working temperature of rolling turbine A is 170 ℃ ± 5 ℃, and the working temperature of extruding filter is 160 ± 5 ℃, and the working temperature of rolling turbine B is 165 ± 5 ℃; In the calender, 1# roller working temperature is 185 ± 5 ℃, and 2# roller working temperature is 190 ± 5 ℃, and 3# roller working temperature is 175 ± 5 ℃, and 4# roller working temperature is 170 ± 5 ℃; Rubber wheel, temperature refining wheel and cooling wheel are the water cooling temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102905359A CN101935429B (en) | 2010-09-25 | 2010-09-25 | Rear projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102905359A CN101935429B (en) | 2010-09-25 | 2010-09-25 | Rear projection screen |
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| Publication Number | Publication Date |
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| CN101935429A CN101935429A (en) | 2011-01-05 |
| CN101935429B true CN101935429B (en) | 2012-07-25 |
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| CN2010102905359A Active CN101935429B (en) | 2010-09-25 | 2010-09-25 | Rear projection screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084322A (en) * | 2012-12-28 | 2013-05-08 | 江阴东恒新材料科技有限公司 | High luminance gain metal curtain preparation method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059472B (en) * | 2013-01-09 | 2015-01-28 | 浙江明士达新材料有限公司 | Flame-retardant and mildew-resistant back projection screen |
| CN103102515B (en) * | 2013-02-04 | 2015-01-07 | 南京东润特种橡塑有限公司 | Flexible flame-retardant rubber curtain with high strength, long service life and good visual effect and preparation method thereof |
| CN104278525B (en) * | 2014-09-09 | 2016-06-29 | 宁波先锋新材料股份有限公司 | A kind of sunshade composite material with delustring and high fire-retardance effect and preparation method thereof |
| CN105949649B (en) * | 2016-05-19 | 2017-11-07 | 江苏大海塑料股份有限公司 | A kind of non-neighboring benzene class PVC pellets and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687843A (en) * | 2005-04-26 | 2005-10-26 | 上海华鼎科技教育设备有限公司 | Method for making composite reflecting screen |
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2010
- 2010-09-25 CN CN2010102905359A patent/CN101935429B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687843A (en) * | 2005-04-26 | 2005-10-26 | 上海华鼎科技教育设备有限公司 | Method for making composite reflecting screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084322A (en) * | 2012-12-28 | 2013-05-08 | 江阴东恒新材料科技有限公司 | High luminance gain metal curtain preparation method |
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| CN101935429A (en) | 2011-01-05 |
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Owner name: ZHEJIANG GANGLONG NEW MATERIAL CO., LTD. Free format text: FORMER NAME: ZHEJIANG GANGLONG KNITTING DRESS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Jiaxing City, Zhejiang province 314419 Haining Maqiao Warp Knitting Industrial Park Red Road No. 35 Patentee after: Zhejiang dragon new material Limited by Share Ltd Address before: Jiaxing City, Zhejiang province 314419 Haining Maqiao Warp Knitting Industrial Park Red Road No. 35 Patentee before: Zhejiang Ganglong Knitting Dress Co., Ltd. |