CN103042772B - Method for improving bonding soundness of glass beads on glass bead screen - Google Patents
Method for improving bonding soundness of glass beads on glass bead screen Download PDFInfo
- Publication number
- CN103042772B CN103042772B CN201210584169.7A CN201210584169A CN103042772B CN 103042772 B CN103042772 B CN 103042772B CN 201210584169 A CN201210584169 A CN 201210584169A CN 103042772 B CN103042772 B CN 103042772B
- Authority
- CN
- China
- Prior art keywords
- glass
- curtain
- glass microballoon
- screen
- bead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a method for improving the bonding soundness of glass beads on a glass bead screen. Particularly, the upper surface of a screen blank is uniformly coated with a white emulsion layer, and a layer of glass beads is uniformly sifted on the white emulsion layer after the white emulsion layer evaporates naturally and is dried for 50% to 80%; after the glass beads are sifted, the glass beads are dried for 35 seconds to 120 seconds at a temperature ranging from 90 DEG C to 115 DEG C, and the glass bead screen bonded with the glass beads is obtained; and a screen bottom, a screen base and a screen surface are paved on the screen blank from bottom to top successively. According to the method for improving the bonding soundness of glass beads on the glass bead screen, the thickness of the white emulsion layer and the size and the sifting density of the glass beads are strictly controlled, and white emulsion modified by polyvinyl acetal is selected to overcome the defect that the bonding strength of traditional white emulsion is decreased because of moisture; and in addition, a glass bead anti-falling layer is added on the surface of the glass bead screen to reinforce the glass beads. The method can effectively improve the bonding soundness of glass beads on the glass bead screen, and accordingly, the glass bead screen is guaranteed to have a good stable projection effect.
Description
Technical field
The present invention relates to a kind of glass micro-bead curtain, be specifically related to a kind of method improving glass microballoon bonding fastness on glass micro-bead curtain.
Background technology
At present, be mostly by polyvinyl chloride (PVC) thin layers of a black floor and a white for the projection screen of film or video image projection.Traditional projection screen reflectivity (gain) parameter is low, and the color of image that causing projects presents is dark, needs the image just seeing projection in the space of dark clearly; And traditional projection screen scattering power is poor, the image presented that projects just can only be seen clearly in small angle.
In order to improve albedo and the scattering power of projection screen, there has been proposed a kind of gluing in PVC film and having sticked the glass micro-bead curtain of glass microballoon.But the common defect of this glass micro-bead curtain is afraid of tide, and improper use can fall pearl.More due to its surface irregularity, easily made dirty, therefore when clearing up the pollutant on glass micro-bead curtain surface, the glass microballoon on its surface more easily scraped from.Again or, when this glass micro-bead curtain is as hand pulling type curtain, along with glass micro-bead curtain is rolled repeatedly or put down, glass microballoon is also easy to drop.Although people propose the metal curtain of mixed metal powder in PVC successively, its cost is high, and visual angle is little.By contrast, the cost of glass micro-bead curtain is between moulding between curtain and metal curtain in vain, and it is also better that image presents effect; Therefore, be necessary to provide a kind of technical scheme that can improve glass microballoon adhesion strength on glass micro-bead curtain on the basis of existing technology.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, a kind of method improving glass microballoon bonding fastness on glass micro-bead curtain is provided.
For achieving the above object, technical scheme of the present invention is:
Improve a method for the bonding of glass microballoon on glass micro-bead curtain fastness, the method is specially: at curtain base upper surface even application one deck Virgin's milk glue-line, when white glue with vinyl natural evaporation to 5 ~ 8 one-tenths is dry, Virgin's milk glue-line evenly sieves and spreads one deck glass microballoon; Spread after glass microballoon until sieve, dry 35 ~ 120 seconds at 90 ~ 115 DEG C, obtain the glass micro-bead curtain being bonded with glass microballoon; Wherein, described curtain base is from bottom to top equipped with at the bottom of one deck black curtain successively, at least one deck curtain base and one deck white curtain face, and curtain base is woven fabric or glass-fiber-fabric, as resistance polyester fiber knitting fabric and glass longitude and latitude cloth etc.White glue with vinyl be in 5 ~ 8 one-tenth dry time, white glue with vinyl is in a kind of contraction state, this time be engraved in its surface sieve and spread glass microballoon, the secure bond of glass microballoon on curtain base can be realized.You need to add is that, here 5 ~ 8 one-tenth dry refers to that the solvent of in Virgin's milk glue-line 50 ~ 80% vapors away, and the solvent of residue 20 ~ 50% does not volatilize.
Preferred technical scheme can be: the thickness under above-mentioned Virgin's milk glue-line hygrometric state is 30 ~ 40 μm, and the thickness under dry state is 10 ~ 25 μm, and it is 450 ~ 550g/m that the sieve of above-mentioned glass microballoon spreads density
2.It is extremely important for realizing the secure bond of glass microballoon on curtain base and realizing high reflectance that the thickness of Virgin's milk glue-line and the sieve of glass microballoon spread density.Virgin's milk glue-line is excessively thin, then glass microballoon easily bonds insecure; Virgin's milk glue-line is blocked up, then phenomenon wet in surface drying easily appears in Virgin's milk glue-line, and then causes Virgin's milk glue-line generation shrinking pattern even to ftracture.It is too high that the sieve of glass microballoon spreads density, then unnecessary glass microballoon bonding loosely; It is too low that sieve spreads density, then the reflectivity of curtain can not be ensured effectively.
Preferred technical scheme can be further: the particle diameter upper limit of above-mentioned glass microballoon is at most 15 ~ 20 μm.If the particle diameter of glass microballoon is more than 15 ~ 20 μm, then mean that its volume being only less than 1/2 of glass microballoon of at least existence part is embedded in Virgin's milk glue-line, the glass microballoon of this part can not be bonding to by Virgin's milk glue-line effectively.
Preferred technical scheme can be: the refractive index of above-mentioned glass microballoon is more than 1.9.This glass microballoon is owing to adding barium monoxide, titanium dioxide and rare earth composition, and its fusing circularity is close to 100%, and refractive index is high, and its reflecting effect exceeds more than 6 times than simple glass microballon; Perfect circularity and high refractiveness make to use this glass microballoon greatly can strengthen the reflecting effect of curtain, improve the gain of curtain.
Preferred technical scheme can also be: above-mentioned white glue with vinyl is the polyvinyl acetate glue stick containing modifier, and modifier is Pioloform, polyvinyl acetal, as polyvinyl formal.Due to conventional white glue with vinyl resistance to water and moisture-proof poor, easily moisture absorption in humid air, after moisture absorption, its adhesion strength can decline, and this is one of major consequences of making moist of glass micro-bead curtain just also; Therefore, the Pioloform, polyvinyl acetal that polyvinyl alcohol and aldehydes condensation can be adopted to obtain carries out modification to polyvinyl acetate, and the resistance to water of white glue with vinyl is made moderate progress.In addition, white glue with vinyl at high temperature easily produces creep, and its caking property is declined; Also can improve its high temperature creep resistance by Pioloform, polyvinyl acetal modification, therefore contribute to the environment temperature widening glass micro-bead curtain use.
Preferred technical scheme can be further: the above-mentioned surface being bonded with the glass micro-bead curtain of glass microballoon has additional the glass microballoon resist delamination of layer of transparent.Glass microballoon resist delamination can be continuous or discontinuous, can be to be obtained by the mode of spraying, and also can be that the mode by applying or impressing obtains, it mainly plays the effect of reinforcing glass microballoon further.
Advantage of the present invention and beneficial effect are: first the present invention considers the volatilization feature of white glue with vinyl, have selected its be in 5 ~ 8 one-tenth of contraction state dry time be engraved in its surface sieve and spread glass microballoon, Virgin's milk glue-line glass microballoon can being in shrink gradually is bonding to effectively; Secondly, strictly control the thickness of Virgin's milk glue-line and the size of glass microballoon and sieve and spread density, both ensured that glass microballoon and Virgin's milk glue-line effectively bond, turn avoid Virgin's milk glue-line and ftracture because of blocked up, or sieve that to spread density too low and cause the deficiency of reflectivity; Again, the white glue with vinyl that have employed Pioloform, polyvinyl acetal modification replaces traditional polyvinyl acetate white glue with vinyl, the resistance to water of white glue with vinyl and moisture-proof are improved, overcome the defect that adhesion strength decline occurs because of moisture traditional white glue with vinyl, also improve the high temperature creep resistance of traditional white glue with vinyl, thus make Virgin's milk glue-line in glass micro-bead curtain have good and stable caking property to glass microballoon; Finally, also add the glass microballoon resist delamination of layer of transparent on the surface of glass micro-bead curtain, serve the effect of reinforcing glass microballoon further.The inventive method can improve glass microballoon bonding fastness on glass micro-bead curtain effectively, thus ensures that glass micro-bead curtain has good and stable drop shadow effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the glass micro-bead curtain obtained according to the inventive method;
Fig. 2 is the another kind of structural representation of the glass micro-bead curtain obtained according to the inventive method.
Wherein, 1, curtain base, 2, Virgin's milk glue-line; 3, glass microballoon; 4, resist delamination; 11, at the bottom of curtain; 12, curtain base; 13, curtain face.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The present invention is a kind of method improving glass microballoon bonding fastness on glass micro-bead curtain, the method is specially: at curtain base 1 upper surface even application one deck Virgin's milk glue-line 2, when white glue with vinyl natural evaporation to 5 ~ 8 one-tenth is dry, on Virgin's milk glue-line 2, evenly sieve spreads one deck glass microballoon 3; Spread after glass microballoon 3 until sieve, dry 35 ~ 120 seconds at 90 ~ 115 DEG C, obtain the glass micro-bead curtain being bonded with glass microballoon 3; Wherein, curtain base 1 to be from bottom to top equipped with at the bottom of one deck black curtain 11 successively, at least one deck curtain base 12 and one deck white curtain face 13, and curtain base can be woven fabric or glass-fiber-fabric, as resistance polyester fiber knitting fabric or glass line longitude and latitude cloth.The structural representation of the glass micro-bead curtain of gained as shown in Figure 1 in this way.
Wherein, the thickness under Virgin's milk glue-line hygrometric state is 30 ~ 40 μm, and the thickness under dry state is 10 ~ 25 μm, it is 450 ~ 550g/m that the sieve of glass microballoon 3 spreads density
2, and the particle diameter upper limit of glass microballoon 3 is at most 15 ~ 20 μm.Preferably, glass microballoon 3 is the high refractive index glass micro pearl of refractive index more than 1.9.
In addition, white glue with vinyl is the polyvinyl acetate glue stick of Pioloform, polyvinyl acetal modification, and Pioloform, polyvinyl acetal can be polyvinyl formal.Its method of modifying can be: by white glue with vinyl ethyl acetate dissolved dilution, and dissolved with ethyl acetate equally by polyvinyl formal, both filters after mixing, plasticising subsequently, and filtrate is then modified white glue with vinyl.
In addition, the glass microballoon resist delamination 4 of layer of transparent also can be set up on the surface being bonded with the glass micro-bead curtain of glass microballoon obtained according to the method described above.This has the structural representation of the glass micro-bead curtain of glass microballoon resist delamination 4 as shown in Figure 2.As shown in Figure 2, glass microballoon resist delamination 4 is discontinuous, is obtained by spraying method.In fact, glass microballoon resist delamination 4 can also be continuous print, but its surface needs to have concaveconvex structure; This glass microballoon resist delamination 4 can also be that the mode by applying or impressing obtains.No matter which kind of structure is glass microballoon resist delamination 4 be or by which kind of mode obtained, and it mainly plays the effect of reinforcing glass microballoon 3 further, and does not significantly reduce the reflectivity of glass micro-bead curtain.
Comprehensive above-mentioned introduction, the inventive method improves the bonding fastness of the glass microballoon glass micro-bead curtain respectively from the following aspects, thus ensures that glass micro-bead curtain has good and stable drop shadow effect:
One, have selected white glue with vinyl be in 5 ~ 8 one-tenth of contraction state dry time be engraved in its surface sieve and spread glass microballoon, Virgin's milk glue-line glass microballoon can being in shrink gradually is bonding to effectively;
Two, strictly control the thickness of Virgin's milk glue-line and the size of glass microballoon and sieve and spread density, both ensured that glass microballoon and Virgin's milk glue-line effectively bond, turn avoid Virgin's milk glue-line and ftracture because of blocked up, or glass microballoon sieve to spread density too low and cause reflectivity not enough;
Three, the white glue with vinyl that have employed Pioloform, polyvinyl acetal modification replaces traditional polyvinyl acetate white glue with vinyl, the resistance to water of white glue with vinyl and moisture-proof are improved, overcome the defect that adhesion strength decline occurs because of moisture traditional white glue with vinyl, also improve the high temperature creep resistance of traditional white glue with vinyl, thus make Virgin's milk glue-line in glass micro-bead curtain have good and stable caking property to glass microballoon;
Four, also add the glass microballoon resist delamination of layer of transparent on the surface of glass micro-bead curtain, serve the effect of reinforcing glass microballoon further.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. one kind is improved the method for glass microballoon bonding fastness on glass micro-bead curtain, it is characterized in that, the method is specially: at curtain base upper surface even application one deck Virgin's milk glue-line, and when white glue with vinyl natural evaporation to 5 ~ 8 one-tenth is dry, on Virgin's milk glue-line, evenly sieve spreads one deck glass microballoon; Spread after glass microballoon until sieve, dry 35 ~ 120 seconds at 90 ~ 115 DEG C, obtain the glass micro-bead curtain being bonded with glass microballoon; Wherein, described curtain base is from bottom to top equipped with at the bottom of one deck black curtain successively, at least one deck curtain base and one deck white curtain face, and curtain base is woven fabric or glass-fiber-fabric.
2. improve the method for glass microballoon bonding fastness on glass micro-bead curtain as claimed in claim 1, it is characterized in that, thickness under described Virgin's milk glue-line hygrometric state is 30 ~ 40 μm, and the thickness under dry state is 10 ~ 25 μm, and it is 450 ~ 550g/m that the sieve of described glass microballoon spreads density
2.
3. improve the method for glass microballoon bonding fastness on glass micro-bead curtain as claimed in claim 2, it is characterized in that, the particle diameter upper limit of described glass microballoon is at most 15 ~ 20 μm.
4. improve the method for glass microballoon bonding fastness on glass micro-bead curtain as claimed in claim 1, it is characterized in that, the refractive index of described glass microballoon is more than 1.9.
5. the method for glass microballoon bonding fastness on the improvement glass micro-bead curtain as described in Claims 1-4 Arbitrary Term, it is characterized in that, described white glue with vinyl is the polyvinyl acetate glue stick containing modifier, and modifier is Pioloform, polyvinyl acetal.
6. improve the method for the bonding of glass microballoon on glass micro-bead curtain fastness as claimed in claim 5, it is characterized in that: described in be bonded with the glass micro-bead curtain of glass microballoon surface have additional the glass microballoon resist delamination of layer of transparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584169.7A CN103042772B (en) | 2012-12-28 | 2012-12-28 | Method for improving bonding soundness of glass beads on glass bead screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584169.7A CN103042772B (en) | 2012-12-28 | 2012-12-28 | Method for improving bonding soundness of glass beads on glass bead screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042772A CN103042772A (en) | 2013-04-17 |
| CN103042772B true CN103042772B (en) | 2015-01-07 |
Family
ID=48055730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210584169.7A Expired - Fee Related CN103042772B (en) | 2012-12-28 | 2012-12-28 | Method for improving bonding soundness of glass beads on glass bead screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103042772B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669168A (en) * | 2013-12-31 | 2014-03-26 | 顾宏喜 | Walking anti-slip tape and application method thereof |
| CN104090459A (en) * | 2014-06-20 | 2014-10-08 | 江苏红叶视听器材股份有限公司 | Grey micro-bead projection screen and manufacturing method thereof |
| CN105625102A (en) * | 2014-11-04 | 2016-06-01 | 谢泽波 | Relief-type wall paper processing technology |
| CN105785706A (en) * | 2016-05-20 | 2016-07-20 | 中山市厚源电子科技有限公司 | Naked eye 3D imaging device with spectra vision film |
| CN106647138A (en) * | 2016-10-31 | 2017-05-10 | 海信集团有限公司 | Projection screen and projection system |
| CN109096518B (en) * | 2018-10-25 | 2023-05-26 | 杭州晴朗体育设施有限公司 | Natural lawn protection board with projection function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489108A (en) * | 1982-03-11 | 1984-12-18 | Ciba-Geigy Ag | Photochromic assembly and manufacture of this assembly |
| US6632508B1 (en) * | 2000-10-27 | 2003-10-14 | 3M Innovative Properties Company | Optical elements comprising a polyfluoropolyether surface treatment |
| CN201134007Y (en) * | 2007-11-08 | 2008-10-15 | 乔统工业股份有限公司 | Projection screen |
| CN201315003Y (en) * | 2008-12-09 | 2009-09-23 | 张家港市红叶视听器材有限公司 | High-brightness glass bead curtain |
| CN101493644B (en) * | 2009-03-10 | 2011-04-13 | 梁坚平 | Narrow viewing angle micro-bead curtain for personal projection-viewing |
| CN202306126U (en) * | 2011-09-15 | 2012-07-04 | 张保平 | Mixed back projection imaging pasting film |
-
2012
- 2012-12-28 CN CN201210584169.7A patent/CN103042772B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103042772A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103042772B (en) | Method for improving bonding soundness of glass beads on glass bead screen | |
| CN106415390B (en) | Image projecting structure, image projecting method and image projecting window | |
| CN206710631U (en) | Portable electric appts and refraction coating | |
| EP1777255A2 (en) | Image making medium | |
| CN106200243A (en) | Utilize the light beam projector irradiation display screen of the coating easily removed | |
| KR20080048577A (en) | A coloring and decorating method of painting | |
| JP4604245B2 (en) | Surface finishing structure of a building and method for forming a surface finishing layer | |
| CN207313514U (en) | A kind of urban beautification patch | |
| CN110509700A (en) | Multiple drawing substrate and preparation method thereof is imitated in a kind of holography | |
| CN203213490U (en) | Simulated stone material | |
| CN206267449U (en) | A kind of wall paper | |
| JP5833877B2 (en) | Manufacturing method of light shielding film | |
| CN201991157U (en) | Rapidly adhered scratch-proofing wallpaper | |
| CN208072878U (en) | A kind of epoxy artistic floors | |
| CN211335366U (en) | Holographic copying painting substrate | |
| CN206737297U (en) | A kind of non-woven fabrics wallpaper | |
| CN105725404A (en) | Multilayer compound sun protection umbrella cloth and sun protection umbrella | |
| CN201265126Y (en) | Crystal easy-to-adhere environment protection type decorative wall material | |
| CN108638730B (en) | Stone sand picture and its preparing process | |
| CN104191897B (en) | The preparation method of technique profiling polar region floating ice | |
| CN204186282U (en) | Novel two-sided oil-stain-preventing environmental protection composite roller blind fabric | |
| CN209037140U (en) | A kind of wall clothing with anion | |
| CN217479365U (en) | LED surface covering light homogenizing film structure | |
| CN203792833U (en) | Carved sunshade net | |
| CN205999284U (en) | Stone material gum structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170502 Granted publication date: 20150107 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20171102 Granted publication date: 20150107 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |