JPH08165136A - Neutral gray glass composition - Google Patents
Neutral gray glass compositionInfo
- Publication number
- JPH08165136A JPH08165136A JP31014494A JP31014494A JPH08165136A JP H08165136 A JPH08165136 A JP H08165136A JP 31014494 A JP31014494 A JP 31014494A JP 31014494 A JP31014494 A JP 31014494A JP H08165136 A JPH08165136 A JP H08165136A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- neutral gray
- less
- glass composition
- transmittance
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 71
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 230000007935 neutral effect Effects 0.000 title claims abstract description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002834 transmittance Methods 0.000 claims description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 39
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims description 11
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 7
- 229910052711 selenium Inorganic materials 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 229910004742 Na2 O Inorganic materials 0.000 abstract 2
- 229910018404 Al2 O3 Inorganic materials 0.000 abstract 1
- 229910017344 Fe2 O3 Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000005357 flat glass Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 230000000638 stimulation Effects 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 description 12
- 239000003086 colorant Substances 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
- C03C4/082—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for infrared absorbing glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/02—Compositions for glass with special properties for coloured glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
- C03C4/085—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for ultraviolet absorbing glass
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、中性灰色ガラス組成物
に関する。更に詳しくは、紫外線、赤外線の吸収能に優
れた中性灰色ガラス組成物に関する。FIELD OF THE INVENTION The present invention relates to a neutral gray glass composition. More specifically, the present invention relates to a neutral gray glass composition having excellent ability to absorb ultraviolet rays and infrared rays.
【０００２】[0002]
【従来の技術】近時、冷房負荷の軽減による省エネルギ
ーの要請、室内内装材の太陽紫外線による劣化防止の要
請等から、紫外線及び赤外線の吸収能の優れた着色ガラ
スが提案されてきた。その中で、従来用いられてきた中
性灰色ガラスには次のようなものがある。2. Description of the Related Art Recently, there has been proposed a colored glass having an excellent ability to absorb ultraviolet rays and infrared rays due to a demand for energy saving by reducing a cooling load and a demand for preventing deterioration of interior interior materials by solar ultraviolet rays. Among them, there are the following neutral gray glasses that have been conventionally used.
【０００３】特公昭５２−４９０１０号に開示された中
性灰色ガラスは、ソーダ・石灰・シリカガラス中に重量
％で０．１〜０．５％のＦｅ2Ｏ3（全鉄）、０．００３
〜０．０２％のＣｏＯ、０〜０．００２％のＮｉＯ、
０．０００５〜０．００１％のＳｅからなる着色剤を含
有している。この中性灰色ガラスの光学特性は、厚さ５
ｍｍのガラスで可視光線透過率が５７〜６３％、太陽輻
射熱透過率が５７〜６３％、主波長が５８０ｍμ以下、
色純度が１．５％以下である。The neutral gray glass disclosed in Japanese Examined Patent Publication No. 52-49010 is 0.1% to 0.5% by weight of Fe 2 O 3 (total iron) in soda / lime / silica glass. 003
~ 0.02% CoO, 0-0.002% NiO,
It contains a colorant composed of 0.0005 to 0.001% Se. The optical properties of this neutral gray glass are 5
mm glass, visible light transmittance is 57 to 63%, solar radiation heat transmittance is 57 to 63%, main wavelength is 580 mμ or less,
Color purity is 1.5% or less.
【０００４】特開平２−６４０３８号に開示された、黒
ずんだ薄い灰色でニッケルを含まないガラス組成物は、
ソーダ・石灰・シリカガラス中に重量％で０．５５〜
１．０％のＦｅ2Ｏ3（全鉄）、０．００３〜０．０２％
のＳｅ、０．００５〜０．０２％のＣｏＯからなる着色
剤を含有している。このガラス組成物は、厚さ５．５６
ｍｍのガラスで２０％以下の光透過率を有する。The glass composition disclosed in Japanese Patent Application Laid-Open No. 2-64038, which is dark and light gray and does not contain nickel, is
0.55 wt% in soda / lime / silica glass
1.0% Fe 2 O 3 (total iron), 0.003 to 0.02%
Se, and a colorant composed of 0.005 to 0.02% CoO. This glass composition has a thickness of 5.56.
It has a light transmittance of 20% or less for glass of mm.
【０００５】特開平３−１５３５４３号に開示された中
性灰色低透過性ガラス組成物は、ソーダ・石灰・シリカ
ガラス中に重量％で０．４〜０．７％のＦｅ2Ｏ3（全
鉄）、０．０８〜０．１５％のＦｅＯ、０．００３〜
０．００８％のＳｅ、０．００３〜０．０２５％のＣｏ
Ｏ、０．０２２〜０．０５０％のＣｒ2Ｏ3からなる着色
剤を含有している。このガラス組成物は、厚さ５．５６
ｍｍのガラスで２０％未満の光透過率を有する。The neutral gray low permeability glass composition disclosed in Japanese Patent Application Laid-Open No. 3-153543 discloses a soda / lime / silica glass containing 0.4 to 0.7% by weight of Fe 2 O 3 (total). Iron), 0.08 to 0.15% FeO, 0.003 to
0.008% Se, 0.003-0.025% Co
O, containing a colorant consisting of 0.022 to 0.050% Cr 2 O 3 . This glass composition has a thickness of 5.56.
It has a light transmission of less than 20% for mm glass.
【０００６】特開平４−２７５９４３号に開示された暗
灰色赤外線吸収ガラス組成物は、ソーダ・石灰・シリカ
ガラス中に重量％で１．００〜１．７％のＦｅ2Ｏ3（全
鉄）、少なくとも０．２７％のＦｅＯ、０．００２〜
０．００５％のＳｅ、０．０１〜０．０２％のＣｏＯか
らなる着色剤を含有した、くすんだ灰色ガラス組成物で
ある。このガラス組成物は、厚さ３．９ｍｍのガラスで
３２％以下の光透過率及び１５％未満の全太陽赤外線透
過率を有する。The dark gray infrared absorbing glass composition disclosed in Japanese Patent Laid-Open No. 4-275943 is 1.00 to 1.7% by weight Fe 2 O 3 (total iron) in soda, lime and silica glass. , At least 0.27% FeO, 0.002-
It is a dull gray glass composition containing a colorant consisting of 0.005% Se and 0.01 to 0.02% CoO. This glass composition has a light transmittance of 32% or less and a total solar infrared light transmittance of less than 15% in a glass having a thickness of 3.9 mm.
【０００７】特開平５−５８６７０号に開示されている
車両用ガラスは、ソーダ・石灰・シリカガラス中に重量
％で０．２〜０．６％のＦｅ2Ｏ3（全鉄）、０．１〜１
％のＣｅＯ2 （全酸化セリウム）、 ０〜１％のＴｉ
Ｏ2、０〜０．００５％のＣｏＯ、０〜０．０１％のＮ
ｉＯ、０．０００５〜０．００５％のＳｅからなる着色
剤と紫外線吸収剤を含有している。このガラスの光学特
性は、厚さ４ｍｍでＡ光源による可視光線透過率が７０
％以上、Ｃ光源による主波長が５７０ｎｍ以上、太陽放
射透過率が６０％以下、３５０ｎｍにおける透過率が１
０％以下である。The glass for vehicles disclosed in JP-A-5-58670 is 0.2 to 0.6% by weight of Fe 2 O 3 (total iron) in soda-lime-silica glass. 1-1
% CeO 2 (total cerium oxide), 0 to 1% Ti
O 2 , 0-0.005% CoO, 0-0.01% N
It contains a colorant composed of iO, 0.0005 to 0.005% Se, and an ultraviolet absorber. The optical characteristics of this glass are that the thickness is 4 mm and the visible light transmittance by the A light source is 70.
% Or more, the main wavelength by the C light source is 570 nm or more, the solar radiation transmittance is 60% or less, and the transmittance at 350 nm is 1
0% or less.
【０００８】特開平６−２４７７４０号に開示された中
性灰色系色調ガラスは、ソーダ・石灰・シリカガラス中
に重量％で０．４５〜０．７５％のＦｅ2Ｏ3（全鉄）、
０〜０．７０％のＴｉＯ2、 ０．０１４０〜０．０２５
０％のＣｏＯ、０〜０．０３５０％のＮｉＯ、０〜０．
０３５０％のＣｒ2Ｏ3、０．００１０〜０．００６０％
のＳｅからなる着色剤を含有している。このガラスの光
学特性は、厚さ３ｍｍでＤ65光源による主波長が４９５
〜５７３ｎｍ、可視光線透過率が５０％以下、日射透過
率が５５％以下、紫外線透過率が２５％以下である。The neutral gray tone glass disclosed in JP-A-6-247740 is 0.45 to 0.75% by weight of Fe 2 O 3 (total iron) in soda / lime / silica glass.
0 to 0.70% of TiO 2, 0.0140~0.025
0% CoO, 0-0.0350% NiO, 0-0.
0350% of Cr 2 O 3, 0.0010~0.0060%
Contains a colorant consisting of Se. The optical characteristics of this glass are that the thickness is 3 mm and the dominant wavelength by the D 65 light source is 495.
˜573 nm, visible light transmittance is 50% or less, solar radiation transmittance is 55% or less, and ultraviolet light transmittance is 25% or less.
【０００９】[0009]
【発明が解決しようとする課題】前記特公昭５２−４９
０１０号に開示された中性灰色ガラスは、着色剤の酸化
鉄分が少なく、鉄分以外に紫外線吸収剤を含有しないの
で、太陽放射透過率及び紫外線透過率が高いという不都
合があった。[Problems to be Solved by the Invention] Japanese Patent Publication No. 52-49
Since the neutral gray glass disclosed in No. 010 has a small amount of iron oxide as a colorant and contains no ultraviolet absorber other than iron, it has a disadvantage of high solar radiation transmittance and ultraviolet transmittance.
【００１０】前記特開平２−６４０３８号に開示された
ガラス組成物は、着色剤のＣｏＯとＳｅの量が多いので
可視光線透過率が小さく、ガラスの内側から外の景色を
見にくいという不具合があった。The glass composition disclosed in the above-mentioned JP-A-2-64038 has a large visible light transmittance due to a large amount of CoO and Se as colorants, and thus has a problem that it is difficult to see the outside view from the inside of the glass. It was
【００１１】また、前記特開平３−１５３５４３号に開
示されたガラス組成物も、前記特開平２−６４０３８号
と同じ理由から、可視光線透過率が低すぎるという不具
合があった。The glass composition disclosed in JP-A-3-153543 also has a problem that the visible light transmittance is too low for the same reason as in JP-A-2-64038.
【００１２】前記特開平４−２７５９４３号に開示され
た暗灰色赤外線吸収ガラス組成物は、Ｆｅ2Ｏ3（全鉄）
とＣｏＯの量が多いので可視光線透過率が低く、ガラス
の内側から外の景色を見にくいという不具合があった。The dark gray infrared absorbing glass composition disclosed in the above-mentioned Japanese Patent Laid-Open No. 4-275943 is Fe 2 O 3 (all iron).
Since the amount of CoO is large, the visible light transmittance is low, and it is difficult to see the outside scene from the inside of the glass.
【００１３】前記特開平５−５８６７０号に開示された
車両用ガラスは、可視光線透過率を７０％以上と高くし
ていることから、着色剤のＦｅ2Ｏ3（全鉄）の量が少な
く、太陽放射透過率が高いという不具合があった。The vehicle glass disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-58670 has a high visible light transmittance of 70% or more, and therefore contains a small amount of Fe 2 O 3 (total iron) as a colorant. The solar radiation transmittance was high.
【００１４】前記特開平６−２４７７４０号に開示され
た中性灰色系色調ガラスは、ＣｏＯの量が多く可視光線
透過率が低くなり、プライバシー保護には適している
が、ガラスの内側から外の景色が見にくいという不具合
があった。The neutral gray tone glass disclosed in the above-mentioned JP-A-6-247740 has a large amount of CoO and a low visible light transmittance and is suitable for privacy protection. There was a problem that the scenery was difficult to see.
【００１５】[0015]
【課題を解決するための手段】本発明は重量％で表示し
て本質的に、６５〜８０％のＳｉＯ2、 ０〜５％のＡｌ
2Ｏ3、０〜１０％のＭｇＯ、５〜１５％のＣａＯ、１０
〜１８％のＮａ2Ｏ、０〜５％のＫ2Ｏ、 ５〜１５％の
ＭｇＯ＋ＣａＯ、１０〜２０％のＮａ2Ｏ＋Ｋ2Ｏ、０．
８〜１．２％のＦｅ2Ｏ3に換算した酸化鉄、０．２〜
１．０％のＴｉＯ2、 ０．００３〜０．０１０％のＣｏ
Ｏ、０．０００２〜０．００５％のＳｅからなることを
特徴とする中性灰色ガラス組成物である。The present invention, expressed in weight percent, is essentially 65-80% SiO 2 , 0-5% Al.
2 O 3 , 0-10% MgO, 5-15% CaO, 10
18% of Na 2 O, 0 to 5% of K 2 O, 5 to 15% of MgO + CaO, 10 to 20% of Na 2 O + K 2 O, 0.
Iron oxide converted to 8 to 1.2% Fe 2 O 3 , 0.2 to
1.0% of TiO 2, 0.003 to 0.010% of the Co
O is 0.0002 to 0.005% of Se, It is a neutral gray glass composition characterized by the above-mentioned.
【００１６】[0016]
【作用】ＳｉＯ2はガラスの骨格を形成する主成分であ
る。ＳｉＯ2が６５％未満ではガラスの耐久性が低下
し、８０％を越えるとガラスの溶融が困難になる。Function: SiO 2 is the main component forming the skeleton of glass. If the SiO 2 content is less than 65%, the durability of the glass will deteriorate, and if it exceeds 80%, it will be difficult to melt the glass.
【００１７】Ａｌ2Ｏ3はガラスの耐久性を高めるが、５
％を越えるとガラスの溶融が困難になる。Al 2 O 3 enhances the durability of glass, but
If it exceeds%, it becomes difficult to melt the glass.
【００１８】ＭｇＯはガラスの粘度を調整する成分であ
るが、１０％を越えるとガラスの液相温度が上昇し、成
形が困難になる。MgO is a component for adjusting the viscosity of the glass, but if it exceeds 10%, the liquidus temperature of the glass rises and molding becomes difficult.
【００１９】ＣａＯはガラスの耐久性を高め、粘度を調
整する成分であるが、５％未満ではガラスの耐久性が低
下し、１５％を越えるとガラスの液相温度が上昇する。CaO is a component that enhances the durability of the glass and adjusts the viscosity. If it is less than 5%, the durability of the glass decreases, and if it exceeds 15%, the liquidus temperature of the glass rises.
【００２０】ＭｇＯとＣａＯとの合計が５％未満ではガ
ラスの耐久性が低下し、１５％を越えるとガラスの液相
温度が上昇する。If the total amount of MgO and CaO is less than 5%, the durability of the glass will decrease, and if it exceeds 15%, the liquidus temperature of the glass will increase.
【００２１】Ｎａ2Ｏ はガラスの溶融促進剤であるが、
１０％未満ではガラスの溶融が困難であり、１８％を越
えるとガラスの耐久性が低下する。Although Na 2 O is a glass melting accelerator,
If it is less than 10%, it is difficult to melt the glass, and if it exceeds 18%, the durability of the glass decreases.
【００２２】Ｋ2ＯはＮａ2０と同じくガラスの溶融促進
剤であるが、原料が高価であるため５％を越えるのは好
ましくない。K 2 O is a glass melting accelerator like Na 2 0, but it is not preferable to exceed 5% because the raw material is expensive.
【００２３】Ｎａ2ＯとＫ2Ｏの合計が１０％未満ではガ
ラスの溶融が困難になり、２０％を越えるとガラスの耐
久性が低下する。If the total content of Na 2 O and K 2 O is less than 10%, it becomes difficult to melt the glass, and if it exceeds 20%, the durability of the glass deteriorates.
【００２４】ガラス中の酸化鉄はＦｅ2Ｏ3とＦｅＯの状
態で存在する。Ｆｅ2Ｏ3は紫外線を吸収し、ＦｅＯは赤
外線を吸収する。Ｆｅ2Ｏ3に換算した酸化鉄が０．８％
未満ではガラスの紫外線及び赤外線の吸収能が低くな
り、１．２％を越えるとガラスの可視光線透過率が低く
なり好ましくない。Iron oxide in glass exists in the state of Fe 2 O 3 and FeO. Fe 2 O 3 absorbs ultraviolet rays, and FeO absorbs infrared rays. 0.8% of iron oxide converted to Fe 2 O 3
If it is less than 1.2%, the ultraviolet and infrared ray absorbing ability of the glass tends to be low, and if it exceeds 1.2%, the visible light transmittance of the glass tends to be low, such being undesirable.
【００２５】ＴｉＯ2は紫外線を吸収する。ＴｉＯ2が
０．２％未満では紫外線吸収の効果が小さく、ＴｉＯ2
が１．０％を越えるとガラスの可視光線透過率が低下す
る。TiO 2 absorbs ultraviolet rays. If the content of TiO 2 is less than 0.2%, the effect of ultraviolet absorption is small, and TiO 2
When it exceeds 1.0%, the visible light transmittance of the glass decreases.
【００２６】ＣｏＯとＳｅはガラスを中性灰色に着色さ
せる成分である。ＣｏＯが０．００３％未満ではガラス
の刺激純度が高すぎて中性灰色にならず、０．０１０％
を越えるとガラスが青色になる。CoO and Se are components that color the glass to neutral gray. If CoO is less than 0.003%, the stimulating purity of the glass is too high to give a neutral gray color, and 0.010%
Above that, the glass turns blue.
【００２７】Ｓｅが０．０００２％未満ではガラスが中
性灰色にならず、０．００５％を越えるとガラスの可視
光線透過率が低下する。If Se is less than 0.0002%, the glass does not become neutral gray, and if it exceeds 0.005%, the visible light transmittance of the glass decreases.
【００２８】本発明に係る中性灰色ガラス組成物は、以
上の成分の他に本発明の趣旨を損なわない範囲で、Ｌｉ
2Ｏ、Ｂ2Ｏ3、ＢａＯ、ＺｎＯ、ＺｒＯ2を合計で２重量
％以下含有させることができる。また、ＳＯ3、Ｓｂ2Ｏ
3、Ａｓ2Ｏ3、Ｃｌ 等の清澄剤を合計で１重量％以下含
有させることができる。The neutral gray glass composition according to the present invention, in addition to the above-mentioned components, is within a range that does not impair the gist of the present invention.
2 O, B 2 O 3 , BaO, ZnO, and ZrO 2 can be contained in a total amount of 2% by weight or less. In addition, SO 3 , Sb 2 O
A total of 1% by weight or less of a fining agent such as 3 , As 2 O 3 and Cl 2 can be contained.
【００２９】[0029]
【実施例】以下、本発明を表を参照しながら詳細に説明
する。The present invention will be described in detail below with reference to the tables.
【００３０】（実施例）表１は本発明の実施例である。
表１において、Ｔ−Ｆｅ2Ｏ3はＦｅ2Ｏ3に換算した全酸
化鉄を示す。また、ＹCは可視光線透過率（Ｃ光源によ
る）を、ＴGは日射透過率を、ＴUVは太陽紫外線透過率
を、λd は主波長（Ｃ光源による）を、Ｐe は刺激純度
（Ｃ光源による）をそれぞれ示す。(Example) Table 1 shows an example of the present invention.
In Table 1, T-Fe 2 O 3 represents the total iron oxide in terms of Fe 2 O 3. Further, Y C is the visible light transmittance (by the C light source), T G is the solar radiation transmittance, T UV is the solar ultraviolet light transmittance, λ d is the dominant wavelength (by the C light source), and P e is the stimulus purity. (By C light source) respectively.
【００３１】[0031]
【表１】 [Table 1]
【００３２】ガラスの製造に当たっては、珪砂、長石、
石灰石、苦灰石、ソーダ灰、芒硝、カーボン、弁柄、酸
化チタン、酸化コバルト、セレンを目標組成に応じて調
合、混合したバッチを、電気炉中で加熱、溶融した。ガ
ラスを流しだし成形した後、室温まで徐冷した。徐冷し
たガラスを所定の寸法に切断、研磨して、厚さ３．９ｍ
ｍの光学特性測定用のサンプルを作製し、標準の光源Ｃ
を用いて、２゜視野によって光学特性を測定した。太陽
紫外線透過率は、エアーマスが２の時の太陽放射エネル
ギーの２９５〜４００ｎｍの分光透過率から求めた。In the production of glass, silica sand, feldspar,
A batch prepared by mixing and mixing limestone, dolomite, soda ash, mirabilite, carbon, rouge, titanium oxide, cobalt oxide, and selenium according to the target composition was heated and melted in an electric furnace. The glass was cast and molded, and then gradually cooled to room temperature. The gradually cooled glass is cut to a predetermined size and polished to a thickness of 3.9 m.
of the standard light source C
The optical characteristics were measured using a 2 ° field of view. The solar ultraviolet transmittance was obtained from the spectral transmittance of solar radiation energy of 295 to 400 nm when the air mass was 2.
【００３３】本発明の実施例のガラスは、表１から明ら
かなように日射透過率ＴG が４０％以下、太陽紫外線透
過率ＴUVが３０％以下と低いにも係わらず、可視光線透
過率ＹCは５０％以上あり、また日射透過率ＴGが２２％
以下、太陽紫外線透過率ＴUVが１５％以下の場合でも可
視光線透過率ＹC は３５％以上あり、ガラスの内側から
外を眺めるのに不具合がない。As is clear from Table 1, the glasses of the examples of the present invention have a low visible light transmittance T G of 40% or less and a solar ultraviolet light transmittance T UV of 30% or less. Y C is over 50%, and solar radiation transmittance T G is 22%
Hereinafter, even when the solar UV transmittance T UV is 15% or less, the visible light transmittance Y C is 35% or more, and there is no problem in viewing the outside from the inside of the glass.
【００３４】（比較例）表２は本発明に対する比較例を
示す。比較例９はＣｏＯ及びＳｅが本発明の範囲を越え
ているので、可視光線透過率ＹC が低くなりすぎて好ま
しくない。比較例１０はＴ−Ｆｅ2Ｏ3（全鉄）が本発明
の範囲未満であるので、日射透過率ＴG及び太陽紫外線
透過率ＴUVが高くなりすぎて好ましくない。比較例１１
はＴ−Ｆｅ2Ｏ3（全鉄）が本発明の範囲を越えているの
で、可視光線透過率ＹC が低くなりすぎて好ましくな
い。比較例１２はＴｉＯ2 を含有していないので、太陽
紫外線透過率ＴUVが高くなり好ましくない。Comparative Example Table 2 shows a comparative example for the present invention. In Comparative Example 9, CoO and Se exceed the range of the present invention, and therefore the visible light transmittance Y C becomes too low, which is not preferable. In Comparative Example 10, T-Fe 2 O 3 (total iron) is less than the range of the present invention, so that the solar radiation transmittance T G and the solar ultraviolet ray transmittance T UV are too high, which is not preferable. Comparative Example 11
Since T-Fe 2 O 3 (total iron) exceeds the range of the present invention, the visible light transmittance Y C becomes too low, which is not preferable. Since Comparative Example 12 does not contain TiO 2 , the solar ultraviolet transmittance T UV is high, which is not preferable.
【００３５】[0035]
【表２】 [Table 2]
【００３６】[0036]
【効果】以上詳述した通り、本発明による中性灰色ガラ
ス組成物は、可視光線透過率が比較的高く、太陽紫外線
透過率及び日射透過率が低く、更に刺激純度も小さいの
で、車両用及び建築用に好適である。As described in detail above, the neutral gray glass composition according to the present invention has a relatively high visible light transmittance, a low solar ultraviolet transmittance and a low solar radiation transmittance, and a low stimulus purity. Suitable for construction.
Claims (2)
％のＳｉＯ2、 ０〜５％のＡｌ2Ｏ3、０〜１０％のＭｇ
Ｏ、５〜１５％のＣａＯ、１０〜１８％のＮａ2Ｏ、 ０
〜５％のＫ2Ｏ、５〜１５％のＭｇＯ＋ＣａＯ、１０〜
２０％のＮａ2Ｏ＋Ｋ2Ｏ、 ０．８〜１．２％のＦｅ2Ｏ
3に換算した酸化鉄、０．２〜１．０％のＴｉＯ2、
０．００３〜０．０１０％のＣｏＯ、０．０００２〜
０．００５％のＳｅからなることを特徴とする中性灰色
ガラス組成物。1. Essentially 65-80, expressed as weight percent.
% SiO 2 , 0-5% Al 2 O 3 , 0-10% Mg
O, 5 to 15% of CaO, 10 to 18% of Na 2 O, 0
5% of K 2 O, 5 to 15% of MgO + CaO, 10~
20% Na 2 O + K 2 O, 0.8-1.2% Fe 2 O
Iron oxide converted to 3 , 0.2 to 1.0% TiO 2 ,
0.003 to 0.010% CoO, 0.0002 to
Neutral gray glass composition comprising 0.005% Se.
において、板厚３．９ｍｍのガラスでの日射透過率が４
０％以下で、且つ太陽紫外線透過率が３０％以下である
ことを特徴とする中性灰色ガラス組成物。2. The neutral gray glass composition according to claim 1, which has a solar radiation transmittance of 4 in glass having a plate thickness of 3.9 mm.
A neutral gray glass composition, which is 0% or less and has a solar ultraviolet transmittance of 30% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31014494A JP3703514B2 (en) | 1994-12-14 | 1994-12-14 | Neutral gray glass composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31014494A JP3703514B2 (en) | 1994-12-14 | 1994-12-14 | Neutral gray glass composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08165136A true JPH08165136A (en) | 1996-06-25 |
| JP3703514B2 JP3703514B2 (en) | 2005-10-05 |
Family
ID=18001702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31014494A Expired - Fee Related JP3703514B2 (en) | 1994-12-14 | 1994-12-14 | Neutral gray glass composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3703514B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001034531A1 (en) * | 1999-11-11 | 2001-05-17 | Nippon Sheet Glass Co., Ltd. | Flat glass to be tempered |
| US6455452B1 (en) | 1998-03-16 | 2002-09-24 | Ppg Industries Ohio, Inc. | Bronze privacy glass |
| US6656862B1 (en) | 1998-05-12 | 2003-12-02 | Ppg Industries Ohio, Inc. | Blue privacy glass |
| US6953758B2 (en) | 1998-05-12 | 2005-10-11 | Ppg Industries Ohio, Inc. | Limited visible transmission blue glasses |
-
1994
- 1994-12-14 JP JP31014494A patent/JP3703514B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6455452B1 (en) | 1998-03-16 | 2002-09-24 | Ppg Industries Ohio, Inc. | Bronze privacy glass |
| US6656862B1 (en) | 1998-05-12 | 2003-12-02 | Ppg Industries Ohio, Inc. | Blue privacy glass |
| US6953758B2 (en) | 1998-05-12 | 2005-10-11 | Ppg Industries Ohio, Inc. | Limited visible transmission blue glasses |
| WO2001034531A1 (en) * | 1999-11-11 | 2001-05-17 | Nippon Sheet Glass Co., Ltd. | Flat glass to be tempered |
| JP4951838B2 (en) * | 1999-11-11 | 2012-06-13 | 日本板硝子株式会社 | Tempered glass |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3703514B2 (en) | 2005-10-05 |
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