CN103668986B - Blade of louver window and preparation method thereof - Google Patents
Blade of louver window and preparation method thereof Download PDFInfo
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- CN103668986B CN103668986B CN201210326863.9A CN201210326863A CN103668986B CN 103668986 B CN103668986 B CN 103668986B CN 201210326863 A CN201210326863 A CN 201210326863A CN 103668986 B CN103668986 B CN 103668986B
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Abstract
The invention provides a kind of making blade of louver window method, comprising: (a) weaves the textiles of strip, wherein two long limits of textiles are woven to bilayer, thus form the inner space of a strip; B the textiles of strip is immersed in curing agent by (), wherein the textiles of strip with predetermined speed through curing agent; The textiles of the dipped curing agent of (c) hyperthermia drying; (d) extruded hyperthermia drying textiles excessively, makes it be fixed to smooth state, thus uses as blade of louver window.
Description
Technical field
The present invention relates to a kind of sun blind, the blade of louver window be especially made up of textiles, wherein textiles is by cure process, is applicable to the use of sun blind.
Background technology
Have a variety of blade of louver window in the market, by hard material as aluminium alloy, wood, bamboo chip etc. is made.Al-alloy metal is lighter, waterproof.The production equipment price of aluminum alloy flake, adds that non-ferrous metal is fewer and feweri, uses the cost of aluminium alloy window blade very high.
The production process of wood chip and bamboo chip is many, and difficulty of processing is large, and waterproof effect is poor, easy flexural deformation, and service life is short, and vision is dull, and decorative effect is not good enough.Equally, timber and bamboo chip also more and more rare, and a large amount of timber that uses is unfavorable for environmental protection.So be badly in need of finding cost low, but substitute that performance is good.
Plastic cement, the curtain sheet that plastics or curing agent are made also develops gradually, but because of its product not anti-aging, so the not anti-solarization of the shutter made, aging very fast, neither high-grade, also unsightly.With old or damage and eliminate product be not easy process and not environmentally, gradually can by market.
But above-mentioned stiff sheet also has some not noted very important shortcoming as blade of louver window, and because blade is hard, so usually when dispatching from the factory, the width of curtain blade just determines.If time the window of client is not standard-sized, these shutters just have no idea to use.And the form of customization all makes cost very high, the cost of the transport of blades of hard is also higher simultaneously.
Hard blade also has a shortcoming to be, in order to connect each blade when being made into shutter, two edge of each hard blade have the hole of strip shape respectively, makes the rope of shutter by wherein.But work as shutter when in use, this some holes visually can form a vertical rectangular emptying aperture do not covered, and affects the effect of shutter shield lights.
Soft product be it is generally acknowledged as textiles and is not suitable for making sun blind, because must have certain stiffness as louvers of jalousie.And textiles does not have waterproof, fire-retardant, and put the functions such as ultraviolet, make it cannot be applied to shutter field.
Summary of the invention
An object of the present invention is the characteristic of the softness overcoming textiles, strengthen the hardness of textiles, make textiles be applied to louvers of jalousie.
An object of the present invention is to make textiles as louver lamina further, have waterproof, the functions such as fire-retardant and antiultraviolet, meet international indices.
Another object of the present invention is to provide a kind of blade of louver window, according to the actual needs of client, can customize the shutter of any width.
Another object of the present invention is to provide a kind of blade of louver window, conveniently transports storage, processing and use.
Another object of the present invention is to provide a kind of blade of louver window preparation method, soft textiles can be made to become stiffening, be applicable to shutter product.
Another object of the present invention is to provide a kind of blade of louver window preparation method, and blade of louver window can be made further to have waterproof, fire-retardant, and the function such as antiultraviolet.
Another object of the present invention is to provide a kind of method utilizing blade of louver window of the present invention to make shutter, wherein according to the requirement of client, can make the shutter of any width.
Another object of the present invention is to provide a kind of method utilizing blade of louver window of the present invention to make shutter, wherein blade of louver window does not need to cut open sky, better plays the effect of shield lights.
In order to achieve the above object, the invention provides a kind of blade of louver window, comprising:
The strip blade of louver window that a textiles is made, wherein, two long limits of strip blade are respectively double-deck, form the inner space of a strip;
A curing agent infiltrates through textiles inside fully, is sticky by fibres for fabrics, thus reaches the object of stiffened textiles; With
With two strips have certain flexible rigid posts, insert respectively in the inner space of the strip on two long limits of textiles, thus further strengthen the hardness of textiles.
Present invention also offers a kind of manufacture method of blade of louver window, comprise the following steps:
The textiles of (a) braiding strip, wherein two long edges of textiles are woven to bilayer, thus form the inner space of a strip;
B the textiles of strip is immersed in stiffening agent by (), wherein the textiles of strip is with predetermined speed through stiffening agent, and this stiffening agent comprises rigid polyacrylic ester latex, thermoplastic polyurethanes emulsion and fire retardant;
The textiles of the dipped stiffening agent of (c) hyperthermia drying, wherein temperature range is between 100-180 degree Celsius; With
D () extruded strip textiles crossing hyperthermia drying, makes it be fixed to smooth state, thus uses as blade of louver window.
Wherein the textiles of strip shape is polyester material, comprises polyester filament, low elastic polyester filament, POLYESTER HIGH ELASTIC YARN, or terylene net-thread.
Wherein the textiles of strip also comprises the side on the long limit that two or more annulus is arranged on.
The textiles of wherein said strip is woven into certain length, and can roll and be saved.The textiles of strip is woven with pattern.
Wherein step (b) (c) (d) carries out with the speed of 2-50m/s simultaneously.
Wherein in step (b), described stiffening agent is contained in one and adds inside stock tank, described strip textiles with certain speed by adding stock tank.
The solid content that wherein thermosetting polyacrylate latex adds is 3-4 times of the solid content that thermoplastic polyurethanes emulsion adds.
Wherein the solids content of thermoplastic polyurethanes emulsion is 20-30%, vitrification point 35-40 DEG C.
Wherein the water of the phosphorus flame retardant of mass fraction 20%, the thermosetting polyacrylate latex of mass fraction 60% and mass fraction 20% is configured to mixed solution and adds rigid polyacrylic ester latex again and make stiffening agent.
Also comprise the textiles of step (b1) extruded strip shape in the manufacture method of described blade of louver window, extrude unnecessary stiffening agent, and stiffening agent is evenly distributed on the textiles of strip.
Wherein before step (d), further comprising the steps of:
(c1) be immersed in finishing agent by the textiles of strip, wherein the textiles of strip passes through finishing agent with certain speed;
(c2) textiles of extruded strip shape, extrudes unnecessary finishing agent, thus makes finishing agent be evenly distributed on the textiles of strip; With
(c3) textiles of the strip of the dipped finishing agent of hyperthermia drying, wherein temperature is between 100-180 degree Celsius.
Wherein said finishing agent comprises fluorochemical.
Wherein said finishing agent comprises ultraviolet screener.
Wherein pass through sizing drum extrusion in step (d) through hyperthermia drying textiles, sizing cylinder has sunk part, jut and flat simultaneously.
Bowl temperature of wherein shaping is 160 DEG C.
These objects of the present invention, feature, and advantage will detailed description of the invention below, accompanying drawing, and exposure detailed in claim.
Accompanying drawing explanation
Fig. 1 is the application state schematic diagram of blade of louver window of the present invention.
Fig. 2 is the product schematic diagram of blade of louver window of the present invention.
Fig. 3 is the schematic diagram that the present invention makes blade of louver window method.
Fig. 4 is the schematic diagram that the present invention makes the sizing cylinder used in blade of louver window method.
Detailed description of the invention
Please refer to Fig. 1, the invention provides a kind of textiles and make blade of louver window, overcome the flexibility of general textiles.And there is the advantage that blade of louver window that general hard material makes does not have.The blade of louver window 1, one that blade of louver window of the present invention comprises the strip that a textiles is made infiltrates through the stiffening agent 2 of textiles, and the rigid posts 3 of two strips.
Two long edges 11 of strip blade of louver window 1 are woven to bilayer, the inner space 12 that formation one is rectangular therein, the strip blade of louver window 1 that textiles is woven into, its textile material is for being polyester material, comprise polyester filament, low elastic polyester filament, POLYESTER HIGH ELASTIC YARN, or terylene net-thread.Its characteristic is that intensity is high, anti-aging, not easily absorbs water, high temperature resistant (can reach 180 degrees Celsius), and has antimildew function, is the ideal material making shutter.
The blade of louver window width that this braided fabric is made is between 2-15cm, and count is every centimetre of 3-40 bar parallel, and braiding thickness is 0.1-2mm.Wherein, two long edge 11 braidings of strip blade are respectively double-deck, form the inner space 12 of a strip.
A stiffening agent 2 infiltrates through textiles inside fully, after hyperthermia drying, is sticky by fibres for fabrics, thus reaches the object of stiffened textiles.This stiffening agent comprises rigid polyacrylic ester latex, thermoplastic polyurethanes emulsion and fire retardant, and the solid content that thermosetting polyacrylate latex adds is 3-4 times of the solid content that thermoplastic polyurethanes emulsion adds.
The solids content of thermoplastic polyurethanes emulsion is 20-30%, vitrification point 35-40 DEG C.
The water of the phosphorus flame retardant of mass fraction 20%, the thermosetting polyacrylate latex of mass fraction 60% and mass fraction 20% is configured to mixed solution and adds rigid polyacrylic ester latex again and make stiffening agent.
Fabric is padded with rigid polyacrylic ester latex, thermoplastic polyurethanes emulsion and fire retardant, again through full cross-linked, make to produce bonding between the fiber in yarn, and form hardening film at fiber surface, thus make fabric produce stiffening, abundant, plentiful feel.The stiffening agent used is containing free formaldehyde also not Diazolidinyl Urea.Owing to employing thermoplastic polyurethanes emulsion, textiles is made to have wear-resisting, oil resistant, the characteristic that low temperature resistant, resilience is excellent, the blade of louver window of method manufacture of the present invention is rolled again and places a period of time can recover straightened condition when opening and using again, instead of in arc when rolling.Its principle mainly can be explained containing netted side chain between thermoplastic polyurethanes macromolecular chain, these side chains its side chain when large molecule stress deformation also can be out of shape thereupon, but the potential energy storage of distortion can be got up when it is out of shape, once external force can recover original displacement after removing under the effect of side chain potential energy.
Article two, strip has certain flexible rigid posts 3, inserts respectively in the inner space 11 of the strip on two long limits of textiles, thus strengthens the hardness of textiles further.The diameter of this rigid posts is 1-10 mm, and the material of rigid posts is fiberglass pole, metal material bar, or plastic bar.
The strip blade of louver window 1 that textiles is woven into also comprises the side on the long limit that two or more annulus 13 is arranged on.Like this, blade of louver window can be coupled together by the annulus be arranged on blade of louver window 1, and does not need to cut open on the surface of blade hole as the technology of habit, thus affects the shading performance of shutter.Annulus 13 for being woven directly on strip blade of louver window 1, or after make.The diameter of annulus is 1-30mm, and density is 1-10/rice.
In addition, the material that this textiles uses can dye random color, and sun blind can be made like this to present multiple color.Various pattern can be woven above same textiles, make sun blind be no longer dull unified color.This is the advantage that the sun blind of common material cannot possess.
Present invention also offers a kind of making blade of louver window method, comprising:
(a) braiding strip blade of louver window 1, wherein two of textiles long edges 11 are woven to bilayer, thus form the inner space 12 of a strip;
B strip blade of louver window 1 is immersed in stiffening agent 2 by (), wherein the textiles of strip with predetermined speed through stiffening agent 2;
The strip blade of louver window 1 of the dipped stiffening agent 2 of (c) hyperthermia drying, temperature range is between 100-180 degree Celsius; With
D () is extruded crosses hyperthermia drying strip blade of louver window 1, makes it be fixed to smooth state, thus uses as blade of louver window.
As shown in Figure 2, the strip textiles of braiding can be random length, and rolls and save, saving space very.When making sun blind, can length as required, be cut to the length of needs at any time, make the shutter of suitable width.
The strip blade of louver window 1 that textiles is woven into, its textile material, for being polyester material, comprises polyester filament, low elastic polyester filament, POLYESTER HIGH ELASTIC YARN, or polyester mesh silk.Its characteristic is that intensity is high, anti-aging, not easily absorbs water, high temperature resistant (can reach 180 degrees Celsius), and has antimildew function, is the ideal material making shutter.
The blade of louver window width that this braided fabric is made is between 2-15cm, and count is every centimetre of 3-40 bar parallel, and braiding thickness is 0.1-2mm.Wherein, two long limit braidings of strip blade are respectively double-deck, form the inner space 12 of a strip.Wherein the inner space of strip can hold rigid posts, thus when being applied to sun blind, promotes its hardness further.
In addition, the material that this textiles uses can dye random color, and sun blind can be made like this to present multiple color.Various pattern can be woven, dull unified color that to be sun blind be no longer above same textiles.This is the advantage that the sun blind of common material cannot possess.
The strip blade of louver window 1 that textiles is woven into also comprises the side on the long limit that two or more annulus 13 is arranged on.Like this, blade of louver window can be coupled together by the annulus be arranged on blade of louver window 1, and does not need to cut open on the surface of blade hole as the technology of habit, thus affects the shading performance of shutter.Annulus for being woven directly on strip blade of louver window 1, or after make.The diameter of annulus is 1-30mm, and density is 1-10/rice.
Wherein, a () (b) (c) (d) four steps can be carried out simultaneously orderly, also can after step (a) be carried out, namely the textiles blade of louver window of strip woven after, b () (c) (d) three steps are carried out simultaneously orderly, as shown in Figure 3, the present invention (b) (c) (d) three steps are carried out simultaneously orderly, and carry out with the speed of 2-50m/s.
In step (b), this stiffening agent 2 is rigid polyacrylic ester latex.As shown in Figure 3, strip blade of louver window 1 adds stock tank 21 with certain speed by what be equipped with rigid polyacrylic ester latex, fully contacts, make rigid polyacrylic ester latex fully penetrate into textiles inside with rigid polyacrylic ester latex.
The speed that textiles passes through is 6-8 ms/min, and textiles is 7-8 seconds adding soak time in stock tank.
After step (b), the present invention also comprises step: the textiles of (b1) extruded strip shape, extrudes unnecessary stiffening agent, and stiffening agent is evenly distributed on the textiles of strip.This step realizes by extruding drum 22, the textiles of dipped stiffening agent, after extruding drum, can extrude unnecessary stiffening agent, and stiffening agent is evenly distributed on the textiles of strip.
In step (c), the temperature of drying stiffening agent is 100 degrees Celsius-180 degrees Celsius, and is realized by first drying baker 4.As shown in table 1, when temperature is lower than 100 degree, the stiffening agent used can not carry out cross-linking reaction, namely can not film forming after stiffening agent solidification, there is no combining of chemical bond with blade, so stiffening agent is difficult to after solidifying completely reach stiffening effect, also can come off simultaneously.And when higher than 180 degree, under our present manufacturing condition, stiffening agent can because temperature be too high, molecule is brittle by thermal cracking, even carbonization.The blade of such sizing can lose pliability.Pad fabric with rigid polyacrylic ester latex, then through full cross-linked, make to produce bonding between the fiber in yarn, and form hardening film at fiber surface, thus make fabric produce stiffening, abundant, plentiful feel.The stiffening agent used is containing free formaldehyde also not Diazolidinyl Urea.
Table 1
| Temperature (DEG C) | 80 | 100 | 160 | 180 | 200 |
| Blade state | Blade is not endured with all one's will | Endure with all one's will and there is resilience | Endure with all one's will and there is resilience | Endure with all one's will and there is resilience | Blade gum deposit skin is also brittle |
In step (d), cross hyperthermia drying strip blade of louver window 1 by sizing cylinder 5 is extruded, make it be fixed to smooth state, thus use as blade of louver window.
As shown in Figure 4, the sizing cylinder of step (d) has sunk part, jut and flat simultaneously.Sizing bowl temperature is 160 DEG C.
Sizing diameter of cylinder is 400mm, and width is 200mm, sunk part and each 51mm of bossing, and middle flat cylinder part is 10mm, and these sizes are mainly determined according to the width of blade, suitably can adjust according to width of blade difference.Be designed to principle that this structure scalds cylinder be because blade manufacture and cause due to the difference of blade each several part warp tension in type-approval process blade side, both sides or mid portion degree of tightness inconsistent, use the boiling hot cylinder of this structure in whole boiling hot process, adjustment at any time can scald the use location of cylinder, can choice for use sunk part, bossing or flat, the degree of tightness of blade is corrected, and need not dismantle again and use boiling hot cylinder instead.Concrete adjustment situation is in table 2:
Table 2
| Leaf appearance | Without bad phenomenon | Width is greater than required value | Width is less than required value | Tight in the middle of the pine of both sides | Pine in the middle of both sides are tight | Pine side, side is tight |
| Four boiling hot cylinders use part | By four flats | By three flats again by a sunk part, or two flats, two sunk parts | By three flats bossing or two flats, two bossings | By a flat three sunk parts or two flats, two sunk parts | By a sunk part three bossings or two sunk parts, two bossings | By two sunk parts, two bossings |
Front in step (d), the present invention is further comprising the steps of:
(c1) be immersed in finishing agent 6 by strip blade of louver window 1, wherein strip blade of louver window 1 passes through finishing agent 6 with certain speed;
(c2) extruded strip shape blade of louver window 1, extrudes unnecessary finishing agent 6, thus makes finishing agent be evenly distributed on strip blade of louver window 1; With
(c3) the strip blade of louver window 1 of the dipped finishing agent 6 of hyperthermia drying, wherein temperature is between 100-180 degree Celsius.
Finishing agent comprises fluorochemical, is mixed with solution, PH 4-5 when fluorochemical uses by 15-70g/L and water; Form layer of substance at fabric face, the high energy surface making it original becomes low-energy surface, to stop liquid water penetration fabric capillary, reaches the object of refusing water.By changing fabric face performance, its critical surface tension is reduced.The oil that effects on surface tension force is less produces larger contact angle, thus oily effect is refused in generation.In case being infected with of oily pollutant and water-based dirt.When selecting finishing agent, the medicament selected is not containing PFOA(perfluorooctanoic acid: another green barrier of European Union).
Finishing agent also comprises the compounds such as bromine, antimony, phosphorus and pads fabric, and fire retardant at high temperature melting also covers fiber surface and completely cuts off air, stops the fuel gas generated in fiber to external diffusion; Or decomposite non-flammable gases and water down fuel gas; Or the melt temperature reducing thermoplastic fibre impels molten drop to come off.
Finishing agent also comprises ultra-violet absorber and arranges on fabric, is mixed with solution when ultra-violet absorber uses by 30-50g/L and water; They can absorb ultraviolet light, and it is converted into harmless radiated wave, or are gone out by ultraviolet reflection, thus play a protective role.
Ultra-violet absorber is preferably triazine derivative.
Finishing agent also comprises shading and arranges multiplex coating process.The opacifiers such as titanium oxide, carbon black, pigment are added in coating agent.Opacifier in use with the ratio mixed preparing of water in 2:8.Be preferably titanium dioxide.
In step (c1), finishing agent 6 to be placed in a finishing agent groove 61, and strip blade of louver window 1 by finishing agent groove 61, ensures that finishing agent 6 fully infiltrates in strip blade of louver window 1 at a predetermined velocity.In step (c2), strip blade of louver window 1 is extruded by second extruding drum 62.When strip blade of louver window 1 is by after second extruding drum 62, unnecessary finishing agent is extruded out.In step (c3), strip blade of louver window 1 is dried in second dryer 7, and wherein dryer 7 temperature is 100-180 degree Celsius.
After step (d), the method making textiles shutter also comprises step (e): rolled by the textiles of strip, form a volume, can conveniently store.As shown in Figure 3, the textiles of strip is rolled by hoist engine 8.
The finished appearance situation of the blade of louver window that table 2 manufactures under showing different condition:
Table 2
| Textile material | Scald barrel structure | Width (cm) | Negotiation speed (m/min) | Soak time (second) | Final nonwoven product outward appearance and proterties |
| High-elastic polyester filament | Concave, convex, flat part are combined | Blade is wide by 5.1 | 6 ms/min | Within 8 seconds, soak stiffening and soft very agent | Smooth, good springiness, roll after restorative good again |
| High-elastic polyester filament | Merely through high temperature oven sizing, not by scalding cylinder | Blade is wide by 5.1 | 6 ms/min | Within 8 seconds, soak stiffening and soft very agent | Width differs, wrinkling, out-of-flatness |
| High-elastic polyester filament | Concave, convex, flat part are combined | Blade is wide by 5.1 | 6 ms/min | Within 8 seconds, only soak stiffening agent | Surfacing but elastic recovery is bad |
By above-described embodiment, object of the present invention is reached by fully effective.The personage being familiar with this skill should be understood that and the present invention includes but the content being not limited to accompanying drawing and describing in detailed description of the invention above.Any amendment not departing from function and structure principle of the present invention all will comprise within the scope of the appended claims.
Claims (16)
1. a manufacture method for blade of louver window, comprises the following steps:
The textiles of (a) braiding strip, wherein two long edges of textiles are woven to bilayer, thus form the inner space of a strip;
B the textiles of strip is immersed in stiffening agent by (), wherein the textiles of strip is with predetermined speed through stiffening agent, and this stiffening agent comprises rigid polyacrylic ester latex, thermoplastic polyurethanes emulsion and fire retardant;
The textiles of the dipped stiffening agent of (c) hyperthermia drying, wherein temperature range is between 100-180 degree Celsius; With
D () extruded strip textiles crossing hyperthermia drying, makes it be fixed to smooth state, thus uses as blade of louver window;
There is while being wherein four by quantity in step (d) the strip textiles of sizing drum extrusion through hyperthermia drying of sunk part, jut and flat, can according to leaf appearance, at any time scalability choice for use four sizing cylinder in sunk part, jut, flat, the degree of tightness of blade is corrected and not be used in dismounting and change shape cylinder.
2. the manufacture method of blade of louver window as claimed in claim 1, wherein the textiles of strip is polyester material, comprises polyester filament, low elastic polyester filament, POLYESTER HIGH ELASTIC YARN, or terylene net-thread.
3. the manufacture method of blade of louver window as claimed in claim 2, wherein the textiles of strip also comprises the side on the long limit that plural annulus is arranged on.
4. the manufacture method of blade of louver window as claimed in claim 3, the textiles of wherein said strip is woven into certain length, and can roll and be saved.
5. the manufacture method of blade of louver window as claimed in claim 3, the textiles of wherein strip is woven with pattern.
6. the manufacture method of blade of louver window as claimed in claim 1, wherein step (b) (c) (d) carries out with the speed of 2-50m/s simultaneously.
7. the manufacture method of blade of louver window as claimed in claim 6, wherein in step (b), described stiffening agent is contained in one and adds inside stock tank, described strip textiles with certain speed by adding stock tank.
8. the manufacture method of blade of louver window as claimed in claim 1, the solid content that wherein thermosetting polyacrylate latex adds is 3-4 times of the solid content that thermoplastic polyurethanes emulsion adds.
9. the manufacture method of blade of louver window as claimed in claim 8, wherein the solids content of thermoplastic polyurethanes emulsion is 20-30%, vitrification point 35-40 DEG C.
10. the manufacture method of blade of louver window as claimed in claim 9, wherein the water of the phosphorus flame retardant of mass fraction 20%, the thermosetting polyacrylate latex of mass fraction 60% and mass fraction 20% is configured to mixed solution and adds rigid polyacrylic ester latex again and make stiffening agent.
The manufacture method of 11. blade of louver window as claimed in claim 1, also comprises the textiles of step (b1) extruded strip shape, extrudes unnecessary stiffening agent, and stiffening agent is evenly distributed on the textiles of strip.
The manufacture method of 12. blade of louver window as claimed in claim 1, wherein before step (d), further comprising the steps of:
(c1) be immersed in finishing agent by the textiles of strip, wherein the textiles of strip passes through finishing agent with certain speed;
(c2) textiles of extruded strip shape, extrudes unnecessary finishing agent, thus makes finishing agent be evenly distributed on the textiles of strip; With
(c3) textiles of the strip of the dipped finishing agent of hyperthermia drying, wherein temperature is between 100-180 degree Celsius.
The manufacture method of 13. blade of louver window as claimed in claim 12, wherein said finishing agent comprises fluorochemical.
The manufacture method of 14. blade of louver window as claimed in claim 12, wherein said finishing agent comprises ultraviolet screener.
The manufacture method of 15. blade of louver window as claimed in claim 1, bowl temperature of wherein shaping is 160 DEG C.
16. as the textiles blade of louver window in claim 1-15 manufactured by either method.
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| CN107201658A (en) * | 2017-05-31 | 2017-09-26 | 句容市恒鑫遮阳科技有限公司 | A kind of terylene use for window shutter post-finishing agent |
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| CN108486670A (en) * | 2018-02-07 | 2018-09-04 | 杭州雅姿窗饰材料有限公司 | A kind of preparation method of venetian blind curtain sheet |
| CN109898336B (en) * | 2019-01-22 | 2021-08-13 | 杭州友普装饰材料有限公司 | Shutter blade coating and preparation method thereof |
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| CN103668986A (en) | 2014-03-26 |
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Application publication date: 20140326 Assignee: Lang Si tracery Co. Ltd. Assignor: Wenzhou Lander Braid Industry Co., Ltd. Contract record no.: 2018110000024 Denomination of invention: Deformed wooden blade of louver window and production thereof Granted publication date: 20150819 License type: Exclusive License Record date: 20180425 |