CN1055723A - The photochromism reversible tautomerization processing method of photochromic glass - Google Patents
The photochromism reversible tautomerization processing method of photochromic glass Download PDFInfo
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- CN1055723A CN1055723A CN 90102199 CN90102199A CN1055723A CN 1055723 A CN1055723 A CN 1055723A CN 90102199 CN90102199 CN 90102199 CN 90102199 A CN90102199 A CN 90102199A CN 1055723 A CN1055723 A CN 1055723A
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- photochromic glass
- visible light
- photochromism
- photochromic
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Abstract
The present invention relates to a kind of photochromism reversible tautomerization processing method of photochromic glass, its principal character be when photochromic glass after high-temperature heat treatment, in process of cooling, give the radiation of visible light of its certain hour,, shone glass and be evenly dark brown when visible light is white light or DT; When visible light is other monochromatic ray, shone the glass gray.It has overcome traditional control thermal treatment temp and has added shortcomings such as the control difficulty, poor stability, the color that are had in the coloring metal ionic treatment process " get out of tune ", and utilize method of the present invention can in photochromic glass, make the figure of tea, the double-colored or various needs of ash, reached a kind of beyond thought artistic effect.
Description
The present invention relates to a kind of photochromic glass (hereinafter to be referred as photochromic glass), especially for the photochromism reversible tautomerization processing method of dark brown, the grey photochromic glass of color-changing lens.
Present widely used tea, grey photochromic glass are with alkali aluminoborosilicate (R
2O-B
2O
3-AL
2O
3-SiO
2) system be the basis, add a small amount of silver salt (AgNO
3, Ag
2CO
3, or AgCl), halogenide (Nacl, NaBr etc.) and sensitizing agent copper compound (CuCL, CuO or Cu
2O) obtain original transparent glass through high temperature melting, this moment, it still belonged to the non-photosensitivity material, and after glass transition district temperature (Tg-Tf) thermal treatment, its inside is 50～300 because of the phase-splitting precipitation goes out grain-size
The AgX microcrystal, this just has reversible phtotropism characteristic, and the size of the AgX crystal grain of separating out and concentration are to be related to the important factor that becomes what look after the illumination, therefore require to control exactly the size of AgX crystal grain, just must strictly control thermal treatment process temperature and operation, but it is complicated because the actual process environmental impact factor is many, be difficult to accurately control, and it is even to only depend on the size of controlling AgX crystal grain to control variable color, the photochromic glass difficulty is bigger accurately for tone, and daily production repeatability, poor stability, color " gets out of tune " after easily illumination taking place, " variable color inequality " or phenomenon such as variable color hardly, in order to address these problems, normally in the photochromic glass component, add micro-transition metal coloring ion (as Mn
3+, Ni
2+Ion etc.), to promote stably to present dark brown or tone of gray after the illumination.Even adopted above measure, owing to be subjected to many process environments factor affecting, still difficulty avoids taking place phenomenons such as " getting out of tune ", " variable color inequality ", and what at present domestic and international yield rate was best also is about 85%.
On the basis of above-mentioned photochromic glass, with different temperature, can make the double-colored photochromic glass of tea, grey gradual change by control a slice different sites on glass.Because be temperature control, the same with above-mentioned situation, be easy to phenomenons such as " getting out of tune ", " variable color inequality " occur, thereby of poor quality, yield rate is low.
Above content can be referring to 1989 the 3rd phase 1-11 of " Chinese glass " magazine page or leaf.By with the online information retrieval of U.S. dialog system, find that the method identical with the present invention handle photochromic glass.
The purpose of this invention is to provide a kind of brand-new treatment process to solve with traditional controlled temperature technological measure and to add in the method for micro-transition metal coloring ion, how complex environments influence the poor stability that is produced, the shortcomings such as inequality, control is difficult, of poor quality, yield rate is low that develop the color because of being subjected to, and utilize treatment process of the present invention to make tea, two kinds of colors of ash and required figure in photochromic glass.
The objective of the invention is to realize with following technical proposals:
When photochromic glass after glass transition district heat-treated, when it is cooled between 350 ℃～100 ℃, gave its radiation of visible light 5-10 minute, when visible light is white light or DT, photochromic glass presents dark brown uniformly after the illumination; When visible light was other monochrome, photochromic glass presented grey.When needs are made tea, double-colored or certain figure of ash in photochromic glass, only need to cover the part of photochromic glass with template with certain shape, after white light or day shining 5-10 minute, the figure that just has above-mentioned template in this glass, hidden the part gray, the part that does not have to hide is dark brown.Can on photochromic glass, make the figure of various needs in this way.
Adopt treatment process of the present invention, can make the photochromism reversible tautomerization treating processes be easy to control, (Tg-Tf) heat treatment requirements is reduced, and the time shortens (contracting to 65 minutes from original 2.5 hours) greatly, improved productivity, reduced labor strength, the photochromic glass good stability of producing, color just and uniformity, yield rate is higher than 99%, improved quality product significantly, and can in photochromic glass, make tea, the double-colored or figure of ash, but craft articles, ophthalmic lens, glazing plate glasss etc. have reached a kind of beyond thought artistic effect.
In the photo-irradiation treatment process, when temperature was higher than 350 ℃, the glass internal stress was not eliminated, thereby Glass breadks easily, and temperature is when being lower than 100 ℃, and AgX crystal grain has solidified, and illumination has not had effect, so temperature is selected between 350 ℃～100 ℃, i.e. 350 ℃ or come out of the stove when lower (usually all naturally cooling in heat treatment furnace), naturally cooling in air is used radiation of visible light simultaneously, after 5-10 minute, glass can be cased.As required, but also air blast glass cools is speeded up.The intensity of illumination does not have particular requirement, gets final product in the scope that human eye can bear.Make when dark brown when needs, should use white light or sun exposure; Then present grey with other monochromatic ray irradiation.When in photochromic glass, making figure, preferably use white light or daylight because by the part gray of shading, do not have shading light part to be dark brown, their aberration clearly, if use other monochromatic ray, then shading light part with do not have all grays of shading light part, the figure aberration is very little.Except being placed directly in template by according on glass, the also method of available lens focus projects by according on glass video.When making tea, grey color gradient glass, template is placed on by according to glass top certain distance, make the light oblique fire by according to tea, the grey gradual change glass both can made on glass.
In order to further specify the present invention, describe the present invention in detail below in conjunction with drawings and Examples.
Description of drawings:
Fig. 1 is a synoptic diagram of making tea, grey double-colored gradual change, and 1 is fluorescent lamp, and 2 are the shading template, the 3rd, and by the photochromic glass of photograph, the 4th, worktable.
Embodiment 1: photochromic glass (lens blank) in the tunnel like electrothermal oven through 630 ℃ of high-temperature heat treatment after 65 minutes, when stove internal cooling to 350 ℃, taking out 120 above-mentioned glass is placed on the white worktable, the worktable top is shone with two 40W fluorescent lamps, after 5 minutes, when glass temperature is reduced to 300 ℃, take out 30 cartonnings; After 7 minutes, when reducing to 250 ℃, temperature gets 40 cartonnings; Get 30 cartonnings when temperature was reduced to 200 ℃ in 10 minutes; After 15 minutes, when reducing to 100 ℃, temperature gets 20 remaining cartonnings.Take out under daylight behind the normal temperature, they all present evenly dark brown rapidly, do not have phenomenons such as " getting out of tune ", " variable color inequality ".In fact, when exposing to 300 ℃～250 ℃ with fluorescent lamp, it is dark brown with regard to having presented to be shone glass, the back dull thread of just casing, and they become water white transparency again.Through check, all meet GB GB9105-88 " The glass blanks of photochromic spectacle lens " index.
Embodiment 2: other condition is with embodiment 1, take out 20 sheet glass in the time of 350 ℃, wherein 10 cover half of every sheet glass with straight iron plate, in addition in 10 sheet glass, all put an iron plate that is the ★ shape for every, shine 10 minutes with two 40W fluorescent lamps after, removing shelter observes, preceding 10 half be dark brown (not hiding part), second half gray, and tea, grey sharpness of border.Hidden part in 10 of the backs and be ★ grey figure clearly, it is dark brown that rest part is, and to observe above-mentioned tea, grey under the sunlight darker slightly through taking, and it all taken indoorly again, and tea, grey color and ★ figure are decorporated, and present the water white transparency state.
Embodiment 3: other condition is with embodiment 1, and the photochromic glass when shining 350 ℃ respectively with each monochromatic ray of red, orange, yellow, green, blue, blue, purple is after 10 minutes, and they all present grey.
Embodiment 4: be placed on straight iron plate and shone glass top 10cm, with the oblique fire of a 45W fluorescent lamp, the oblique fire angle is between 40～45 degree in the upper right side.As shown in Figure 1, after 10 minutes, shone the glass right-hand part and be dark brown, intermediate rays transition portion A district presents tea ash gradual change color, and the left side does not have the rayed gray.
Embodiment 5: condition is taken out 50 with the photochromic glass blank during with 1,350 ℃ of embodiment, is placed on outdoor sunlight under and shines, after 5 minutes, they all become dark brown uniformly, and are dark brown dark slightly in the time of 8 minutes, after this, dark brownly stablize constantly, during to normal temperature, take indoorly, they fade rapidly.All meet the every index of GB 9105-88 through checking.
Claims (4)
1, the photochromism reversible tautomerization processing method of a kind of photochromic glass (hereinafter to be referred as photochromic glass), photochromism reversible tautomerization processing method especially for the cranberry glass of color-changing lens, it comprises annealing, temperature (Tg-Tf) thermal treatment of glass transition district and process of cooling, feature of the present invention is in the process of cooling of photochromic glass, gives the radiation of visible light of its certain hour.
2, treatment process according to claim 1, it is characterized in that covering by the part of the photochromic glass of photograph by template with certain shape, through behind the radiation of visible light of certain hour, just has the figure of the photochromism reversible tautomerization of above-mentioned shape of template in the irradiated photochromic glass.
3, treatment process according to claim 1 and 2 is characterized in that giving its radiation of visible light when photochromic glass is cooled between 350 ℃～100 ℃, and the time is 5～10 minutes.
4,, it is characterized in that described visible light is white light or daylight according to claim 1,2 or 3 described treatment processs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102199 CN1055723A (en) | 1990-04-20 | 1990-04-20 | The photochromism reversible tautomerization processing method of photochromic glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102199 CN1055723A (en) | 1990-04-20 | 1990-04-20 | The photochromism reversible tautomerization processing method of photochromic glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1055723A true CN1055723A (en) | 1991-10-30 |
Family
ID=4877413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102199 Pending CN1055723A (en) | 1990-04-20 | 1990-04-20 | The photochromism reversible tautomerization processing method of photochromic glass |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367969A (en) * | 2015-12-18 | 2018-08-03 | 康宁股份有限公司 | Photochromic glass with sharp cut-off |
| CN113666633A (en) * | 2021-08-23 | 2021-11-19 | 中方县明兴玻璃有限公司 | Color-changing glass and preparation method thereof |
-
1990
- 1990-04-20 CN CN 90102199 patent/CN1055723A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367969A (en) * | 2015-12-18 | 2018-08-03 | 康宁股份有限公司 | Photochromic glass with sharp cut-off |
| CN113666633A (en) * | 2021-08-23 | 2021-11-19 | 中方县明兴玻璃有限公司 | Color-changing glass and preparation method thereof |
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