CN102077314A - Glass tube for a fluorescent lamp and method for producing same - Google Patents

Glass tube for a fluorescent lamp and method for producing same Download PDF

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Publication number
CN102077314A
CN102077314A CN2009801239680A CN200980123968A CN102077314A CN 102077314 A CN102077314 A CN 102077314A CN 2009801239680 A CN2009801239680 A CN 2009801239680A CN 200980123968 A CN200980123968 A CN 200980123968A CN 102077314 A CN102077314 A CN 102077314A
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Prior art keywords
glass tube
lamp
fluorescent
surfactant
weight
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CN2009801239680A
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Chinese (zh)
Inventor
元家淳志
北嘉之
谷内昭
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN102077314A publication Critical patent/CN102077314A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • 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
    • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • 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
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

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  • 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)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)

Abstract

Provided is a glass tube for a fluorescent lamp, comprising a cylindrical glass tube containing 5 to 17 wt% Na2O and from 3 to 7 wt% K2O, where some or all of the outer surface of said glass tube is covered with a protective layer, containing non-ionic surfactant of HLB 8 or above, of which the slip-angle is 10 DEG or below. The non-ionic surfactant is preferably a compound represented by formula (1). R-O-(EO)n-H...(1), wherein R is a linear chain alkyl group having 12 to 18 carbon atoms, n is the average number of mol added, having a value of 4 or above, and EO is ethylene oxide (CH2CH2O).

Description

Fluorescent-lamp-use glass tube and manufacture method thereof
Technical field
The present invention relates to fluorescent-lamp-use glass tube and manufacture method thereof.
Background technology
In manufacture process of fluorescent lamp etc., a large amount of fluorescent-lamp-use glass tubes are boxed transportation.But, above-mentioned a large amount of fluorescent-lamp-use glass tube is not because across padded coaming etc. but be boxed under contacted state, therefore adjacent fluorescent-lamp-use glass tube rubs mutually or runs foul of each other, thereby causes producing cut at the outer peripheral face of fluorescent-lamp-use glass tube.The cut of fluorescent-lamp-use glass tube exterior surface not only can cause problems such as breaking of fluorescent-lamp-use glass tube in the manufacture process of fluorescent lamp, also can reduce the exterior quality of fluorescent lamp.
As suppressing the method that above-mentioned cut produces, the method (with reference to patent documentation 1) that the aqueous solution that part or all coating on the glass tube surface contains the anionic surfactant forms diaphragm is disclosed.
But, utilize the method for above-mentioned formation diaphragm to suppress effect that cut produces and insufficient.
Patent documentation 1: TOHKEMY 2000-211947 communique
Summary of the invention
The invention provides and more effectively suppressed fluorescent-lamp-use glass tube and the manufacture method thereof that above-mentioned cut produces.
Fluorescent-lamp-use glass tube of the present invention comprises cylindric glass tube and diaphragm, and the slip angle of described fluorescent-lamp-use glass tube is below 10 °, and above-mentioned cylindric glass tube contains the Na of 5～17 weight % 2The %K of O, 3～7 weight 2O, said protection film covers part or all outer peripheral face of above-mentioned glass tube, and to contain the HLB value be that nonionic more than 8 is a surfactant.
The manufacture method of fluorescent-lamp-use glass tube of the present invention comprises following diaphragm and forms operation: at the Na that contains 5～17 weight % 2The K of O, 3～7 weight % 2On part or all outer peripheral face of the cylindric glass tube of O, coating contains the aqueous solution of surfactant, reaches 0.002 μ g/cm so that the HLB value is the coating weight of the above-mentioned surfactant more than 8 2More than, and with the dried coating film that obtains, thereby form diaphragm.
According to the present invention, can provide and more effectively suppress fluorescent-lamp-use glass tube and manufacture method thereof that cut takes place.
Description of drawings
Figure 1A is the end view of an example of expression fluorescent-lamp-use glass tube of the present invention.
Figure 1B is the I-I ' cutaway view of Figure 1A.
Fig. 2 A is the schematic side view of the assay method of explanation slip angle.
Fig. 2 B is the floor map of the assay method of explanation slip angle.
Embodiment
Discoveries such as the inventor by part or all of the outer surface of the glass tube of specific composition covered with the diaphragm that contains specific surfactant, can provide and more effectively suppress the fluorescent-lamp-use glass tube that cut produces.
Below, an example of fluorescent-lamp-use glass tube of the present invention is described.
Figure 1A illustrates the end view of an example of fluorescent-lamp-use glass tube of the present invention, and Figure 1B illustrates the I-I ' cutaway view of Figure 1A.Shown in Figure 1A and Figure 1B, an example of fluorescent-lamp-use glass tube of the present invention contains the diaphragm 2 of the outer peripheral face of glass tube 1 cylindraceous and cover glass pipe 1.
Diaphragm 2 forms in part or all mode of cover glass pipe 1 outer peripheral face.Diaphragm 2 preferably forms in whole mode of cover glass pipe 1 outer peripheral face; but; for example the both ends of fluorescent-lamp-use glass tube 10 are cut off in the manufacture process of fluorescent lamp sometimes, and in this case, the both ends of glass tube 1 just need not cover by protected film 2.In addition, in the forming process of diaphragm 2, with the both ends clamping of anchor clamps, in this case, do not form diaphragm 2 sometimes at these both ends with glass tube 1.As mentioned above, in the present invention, under the prerequisite of not damaging effect of the present invention, diaphragm 2 also can be with the whole outer peripheral face of cover glass pipe 1 not and only the mode of the part of the outer peripheral face of cover glass pipe 1 form.
Glass tube 1 contains the above Na of 5 weight % 2The K that O, 3 weight % are above 2O, so glass surface has polar group, presents high-hydrophilic.Thus; the HLB value is that the nonionic more than 8 is that the hydrophilic radical of surfactant combines securely with the above-mentioned polar group that glass tube 1 has, and it is that nonionic more than 8 is that the said protection film 2 of surfactant covers equably that the outer peripheral face of glass tube 1 is contained the HLB value.At the opposition side of glass tube 1 side of said protection film 2, assembled lipophilic group, because the slip angle of fluorescent-lamp-use glass tube 10 is below 10 °, therefore can suppress because of mutual friction between the adjacent fluorescent-lamp-use glass tube or the cut that runs foul of each other and produce.
In addition, slip angle θ is meant, on the fluorescent-lamp-use glass tube 1a that is disposed on the level reference and the mensuration platform that have horizontal plane, flatly disposed under the state of fluorescent-lamp-use glass tube 1b, when the mensuration platform is tilted, when fluorescent-lamp-use glass tube 1b begins to slide, measure the angle of inclination of platform with respect to datum level on fluorescent-lamp-use glass tube 1a.Fluorescent-lamp-use glass tube 1a and fluorescent-lamp-use glass tube 1b are fluorescent-lamp-use glass tube of the present invention, and slip angle θ can measure (with reference to Fig. 2 A and Fig. 2 B) with the method for putting down in writing among the aftermentioned embodiment.
If the Na that contains in the glass tube 1 2The content of O surpasses 17 weight %, K 2The content of O surpasses 7 weight %, and then easily from glass tube 1 stripping alkaline components, for the fluorescent lamp that forms with such glass tube, fluorophor or mercury can react with alkaline components, thereby the light beam of fluorescent lamp reduces.Therefore, in the present invention, from the viewpoint of fluorescent lamp that glass tube 1 highly concealed type that protected film 2 covers and high beam can be provided, the Na that contains in the glass tube 1 2The content of O is 5～17 weight %, K 2The content of O is 3～7 weight %.
As long as glass tube 1 contains the Na of 5～17 weight % 2The K of O, 3～7 weight % 2O gets final product, and it is formed not particular determination, for example, and preferred following composition.
SiO 2: 55～75 weight %
B 2O 3: 0～5 weight %
Al 2O 3: 0～5 weight %
Li 2O:0～5 weight %
Na 2O:5～17 weight %
K 2O:3～7 weight %
MgO:0～5 weight %
CaO:0～10 weight %
SrO:0～10 weight %
BaO:0～10 weight %
SiO 2Being main component, is the composition of making the foundation structure of glass.If SiO 2Content be 55～75 weight %, then can obtain the glass tube of high-quality.Na as alkali metal oxide 2O, K 2O and Li 2O has the function that reduces glass viscosity, improves melt processable.
About MgO and CaO as alkaline-earth metals oxide, from the electrical insulating property of raising glass and the viewpoint of chemical durability, preferably in glass, contain, more preferably more than the 0.5 weight %, the content of CaO is more preferably more than the 1 weight % for the content of MgO.On the other hand, from the viewpoint of the high light transmittance of guaranteeing glass, the content of MgO is preferably below the 5 weight %, and the content of CaO is preferably below the 10 weight %.
About SrO and BaO, the viewpoint from the electrical insulating property that improves glass preferably contains in glass.On the other hand, from the viewpoint of the high light transmittance of guaranteeing glass, the content of SrO is preferably below the 10 weight %, and the content of BaO is preferably below the 10 weight %.
About B 2O 3,, preferably in glass, contain from the viewpoint of the chemical durability that improves glass and from reducing viscosity, improving the viewpoint of processability.B 2O 3Content be preferably more than the 1 weight %.
About Al 2O 3, the viewpoint from the chemical durability that improves glass preferably contains in glass.Al 2O 3Content be preferably more than the 0.5 weight %.On the other hand, from the viewpoint of the high working property of guaranteeing glass, Al 2O 3Content be preferably below the 5 weight %.
Constitute the glass tube 1 of fluorescent-lamp-use glass tube of the present invention so long as cylindric getting final product is not particularly limited its shape, usually preferred external diameter is that 3～25mm, internal diameter are that 2～24mm, length are that 300～1100mm, thickness are 0.4～0.9mm.
The HLB value that contains in the diaphragm 2 is that the nonionic more than 8 is that surfactant is if the ether type nonionics such as polyethylene oxide alkyl ethers of following formula 1 expression are surfactant; then the cohesiveness of surfactant becomes big; diaphragm 2 is not easy from glass tube 1 sur-face peeling; the effect that suppresses the cut generation can continue for a long time, thereby preferred.
Formula 1:R-O-(EO) n-H
Wherein, R is that carbon number is 12～18 straight chained alkyl, and n is average addition molal quantity, and n is the number more than 4, is preferably the number more than 30, and EO is ethyleneoxy (CH 2CH 2O).
The HLB value is based on the value of Griffin method by following formula 2 definition.Based on making diaphragm 2 be easy to attached to glass tube 1 surface, be prevented the reason of the effect of cut, the HLB value need be more than 8.The upper limit to the HLB value of surfactant is not particularly limited, and normally 18.
Formula 2:HLB value=20 * (summation/molecular weight of the formula weight of hydrophilic portion)
Then, an example to the manufacture method of fluorescent-lamp-use glass tube of the present invention describes.
An example of the manufacture method of fluorescent-lamp-use glass tube of the present invention comprises diaphragm and forms operation: on the outer peripheral face of glass tube 1 cylindraceous; it is that nonionic more than 8 is the aqueous solution of surfactant that coating contains the HLB value; and, thereby form diaphragm 2 with the dried coating film that obtains.
The surface temperature of the glass tube 1 during for the above-mentioned aqueous solution of coating is not particularly limited, but when aqueous solution coating process described later is when the aqueous solution is blown into spray-on process on the glass tube, it (for example is below 450 ℃ that glass tube 1 preferably is heated to the degree that the surfactant in the aqueous solution after the coating can not decompose because of burning, be preferably below 400 ℃), and, based on making surfactant be attached to the reason of glass tube more firmly, be preferably below 380 ℃, more preferably below 350 ℃.On the other hand, based on utilizing the heat that glass tube had after the heating to make the reason of dried coating film, be preferably more than 100 ℃, more preferably more than 120 ℃.
In addition, the temperature of the outer peripheral face of glass tube 1 is the temperature of the outer peripheral face of the applied glass tube 1 before of the above-mentioned aqueous solution, is the value of measuring with the method for putting down in writing among the aftermentioned embodiment.
In the manufacture process of glass tube, make the softening glass material of fusion be configured as cylindric after, should the cooling of shaping thing (in the present invention, the ongoing above-mentioned shaping thing in above-mentioned cooling also is contained in glass tube.)。Under the heated state of glass tube during painting solution, the heat that can utilize the glass tube in the above-mentioned cooling the to have drying of filming for example, also can on the glass tube that is reheated, be coated with the above-mentioned aqueous solution, the drying that the heat that utilizes this glass tube to have is filmed.
Above-mentioned glass tube contains 5～17 weight %Na 2O, 3～7 weight %K 2O.Other compositions that contain in the glass tube as mentioned above.
About being that nonionic more than 8 is that nonionic in the aqueous solution of surfactant is the content of surfactant containing the HLB value; from the effect of cut generation that is inhibited, simultaneously by forming the viewpoint that diaphragm 2 suppresses being clamminess of fluorescent-lamp-use glass tube and adsorbs the generation of spot; be preferably 0.01～5 weight %; but based on the reason of under low cost, handling, 0.01～1 weight % more preferably.
About the nonionic on the per unit area of glass tube 1 is the coating weight of surfactant, and the effect for the cut that is inhibited produces needs coating weight at 0.002 μ g/cm 2More than.From by forming the viewpoint that diaphragm 2 suppresses being clamminess of fluorescent-lamp-use glass tube 10 and adsorbs the generation of spot, nonionic is that the coating weight of surfactant is preferably 0.3 μ g/cm 2Below.
As the water that contains in the aqueous solution, for example can be in ultra-pure water, pure water, ion exchange water, the distilled water etc. any.Here, pure water and ultra-pure water be meant, running water by active carbon, is carried out ion-exchange treatment, distillation then, and the water that distillation is obtained shines the light or the water by obtaining behind the filter of the ultraviolet germicidal lamp of regulation as required.
Coating process to the aqueous solution is not particularly limited, can enumerate known method such as spray-on process, infusion process, bristle rubbing method, but preferred spray-on process, because spray-on process can be only to the outer peripheral face of glass tube 1 painting solution and can not make the aqueous solution be attached to inner peripheral surface of glass tube etc. very equably, and can be easily to heated glass tube 1 painting solution.
The drying means of filming is not particularly limited, but the viewpoint from boosting productivity and forming more uniform diaphragm, the heat that preferably utilizes heated glass tube 1 to be had comes dry coating.
Embodiment
The aqueous solution that contains surfactant of record in the following table 1 is coated with by spraying, in the outer peripheral face temperature 350～400 ℃ glass tube (external diameter: 4mm, internal diameter: 3mm, length: 1000mm, thickness: 0.5mm) go up coating, make dried coating film, obtain the fluorescent-lamp-use glass tube of embodiment 1～9, comparative example 1～5.
The coating weight of the kind of the composition of glass tube, the surfactant concentrations in the aqueous solution, surfactant, the surfactant of per unit area respectively such as table 1 record.To the drying of filming that forms by the above-mentioned aqueous solution of coating on glass tube, the heat that utilizes glass tube to have carries out.In addition, among the embodiment 1～9 and comparative example 1～4 in table 1, as surfactant, using nonionic is surfactant (R-O-(EO) n-H), but in comparative example 5, using anion is the alkyl polyethylene oxides sodium sulfonate of surfactant.
For the temperature of the outer peripheral face that is coated with above-mentioned aqueous solution glass tube 1 before, use thermoviewer (hino of Co., Ltd. C system, CPA-8000) to measure.At this moment, emissivity is e=0.86, and measuring the position is length direction both ends and these 3 positions of central authorities.The temperature at 3 positions all is values of 350～400 ℃ temperature range.
The assay method of＜slip angle 〉
Shown in Fig. 2 B, be disposed on the level reference and mensuration platform 3 that have horizontal plane on, 6 fluorescent-lamp-use glass tube 1a are fixing parallel to each other with the 1cm spacing, on these many fluorescent-lamp-use glass tube 1a, place the anchor clamps 4 of having fixed other 6 fluorescent-lamp-use glass tube 1b with the 1cm spacing.Then, shown in Fig. 2 A, the determination of tilt platform 3 at leisure, begin to slide until fluorescent-lamp-use glass tube 1b.Then, the angle when reading fluorescent-lamp-use glass tube 1b and beginning to slide, with this angle as " slip angle ".Slip angle is more little, means that the frictional force between the fluorescent-lamp-use glass tube is more little.This assay method is with reference to the regulation of Japanese vial association specification.
＜touch and hinder the evaluation method/metewand that has or not
In order to estimate the difficulty that is scratched of fluorescent-lamp-use glass tube, estimate it and add the intensity of hindering the test front and back.Add that to hinder test be with 20 fluorescent-lamp-use glass tubes (external diameter: 4mm, internal diameter: 3mm, length: 50mm, thickness: 0.5mm) put into polypropylene containers, make said vesse Rotate 180 second with shock testing machine with the rotating speed of 175rpm.Then, measure 3 bending strengths of fluorescent-lamp-use glass tube.Strength detection has used 3 bending strength test machines (the island Feng of Co., Ltd. makes made AUTOGRAPH).When measuring 3 bending strengths, with two base supports fluorescent-lamp-use glass tubes, making the distance between the pedestal is 40mm.Load speed is 1mm/min, and each sample number is the n=50 root.Measurement result is depicted as Weibull plot, calculates the characteristic intensity of glass.The characteristic intensity of above-mentioned glass is meant that the failure probability when being depicted as Weibull plot is 63.2% o'clock a intensity.
The glass tube that uses in embodiment 1～9, comparative example 1～5 all has the glass performance intensity of the employed glass tube of suitable fluorescent lamp, if reach more than 20% but add the rate of descent of hindering the test back with respect to the characteristic intensity that adds the glass tube before wound is tested, then in the manufacturing process of the fluorescent lamp that has used the fluorescent-lamp-use glass tube, the breaking of glass tube that causes because of the outer peripheral face cut of fluorescent-lamp-use glass tube significantly increases.
Figure BDA0000040449780000081
As shown in table 1 such, for containing 5～17 weight %Na 2O, 3～7 weight %K 2The cylindric glass tube of O contained the HLB value be the diaphragm of the surfactant more than 8 cover and slip angle at the fluorescent-lamp-use glass tube of the embodiment below 10 ° 1～9; the rate of descent of the characteristic intensity of above-mentioned glass is lower than 20%; supposition is compared with the fluorescent-lamp-use glass tube of comparative example 1～5, and the generation of above-mentioned cut further is inhibited.In addition, the coating weight of surfactant is 0.3 μ g/cm 2The fluorescent-lamp-use glass tube of following embodiment 1～7 has suppressed being clamminess of diaphragm, and outward appearance is also good.
The present invention can provide and suppress the fluorescent-lamp-use glass tube that cut produces effectively.In addition, the present invention can also provide generation that has suppressed cut effectively and the fluorescent-lamp-use glass tube that suppresses being clamminess of fluorescent-lamp-use glass tube and adsorb the generation of spot by the formation diaphragm.Therefore, fluorescent-lamp-use glass tube of the present invention and manufacture method thereof can be useful in the manufacturing of fluorescent lamps such as straight tube fluorescent lamp, pipe fluorescent lamp, bulb type fluorescence lamp, cold-cathode fluorescence lamp.
Symbol description
1 glass tube
2 diaphragms
10 fluorescent-lamp-use glass tubes

Claims (9)

1. fluorescent-lamp-use glass tube, it comprises cylindric glass tube and diaphragm, and the slip angle of described fluorescent-lamp-use glass tube is below 10 °, and described cylindric glass tube contains the Na of 5～17 weight % 2The K of O, 3～7 weight % 2O, described diaphragm cover part or all outer peripheral face of described glass tube, and to contain the HLB value be that nonionic more than 8 is a surfactant.
2. fluorescent-lamp-use glass tube as claimed in claim 1, wherein, described nonionic is that surfactant is that the nonionic of representing with following formula 1 is a surfactant,
Formula 1:R-O-(EO) n-H
Wherein, R is that carbon number is 12～18 straight chained alkyl, and n is average addition molal quantity, and n is the number more than 4, and EO is that ethyleneoxy is CH 2CH 2O.
3. the manufacture method of a fluorescent-lamp-use glass tube, it comprises following diaphragm and forms operation: at the Na that contains 5～17 weight % 2The K of O, 3～7 weight % 2On part or all outer peripheral face of the cylindric glass tube of O, coating contains the aqueous solution of surfactant, reaches 0.002 μ g/cm so that the HLB value is the coating weight of the described surfactant more than 8 2More than, and with the dried coating film that obtains, thereby form diaphragm.
4. the manufacture method of a fluorescent-lamp-use glass tube, wherein, the coating weight of described surfactant is 0.3 μ g/cm 2Below.
5. as the manufacture method of claim 3 or 4 described fluorescent-lamp-use glass tubes, wherein, form in the operation, by forming described filming on the outer peripheral face that the described aqueous solution is blown into heated described glass tube at described diaphragm.
6. as the manufacture method of each described fluorescent-lamp-use glass tube in the claim 3～5, wherein, described surfactant is that the nonionic of representing with following formula 1 is a surfactant,
Formula 1:R-O-(EO) n-H
Wherein, R is that carbon number is 12～18 straight chained alkyl, and n is average addition molal quantity, and n is the number more than 4, and EO is that ethyleneoxy is CH 2CH 2O.
7. the manufacture method of fluorescent-lamp-use glass tube as claimed in claim 5 wherein, forms in the operation at described diaphragm, and the heat that utilizes heated described glass tube to have makes described dried coating film.
8. the manufacture method of fluorescent-lamp-use glass tube as claimed in claim 7, wherein, with the glass material that is used to form the fusion of glass tube be configured as cylindric after, in the carrying out of cooling, the described aqueous solution of coating on described glass tube, the heat that utilizes described glass tube to have makes described dried coating film.
9. as the manufacture method of claim 7 or 8 described fluorescent-lamp-use glass tubes, wherein, the temperature of the outer peripheral face of the described glass tube before the described aqueous solution coating is 100～450 ℃.
CN2009801239680A 2008-06-25 2009-06-17 Glass tube for a fluorescent lamp and method for producing same Pending CN102077314A (en)

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JP2008-166171 2008-06-25
JP2008166171 2008-06-25
PCT/JP2009/002765 WO2009157156A1 (en) 2008-06-25 2009-06-17 Glass tube for a fluorescent lamp and method for producing same

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Cited By (1)

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CN104952687A (en) * 2014-03-31 2015-09-30 株式会社岛津制作所 Ultraviolet irradiation device and analyzer provided with the same

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Publication number Priority date Publication date Assignee Title
JP3476520B2 (en) * 1993-11-18 2003-12-10 住友大阪セメント株式会社 Material for forming protective film for rapid start fluorescent lamp, rapid start fluorescent lamp, method of manufacturing protective film for rapid start fluorescent lamp
JPH08111207A (en) * 1994-10-06 1996-04-30 Sumitomo Osaka Cement Co Ltd Fluorescent lamp with protective film on inner surface of tube
JP2007297273A (en) * 2007-06-18 2007-11-15 Matsushita Electric Ind Co Ltd Glass composition for lamp, and stem and bulb for lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104952687A (en) * 2014-03-31 2015-09-30 株式会社岛津制作所 Ultraviolet irradiation device and analyzer provided with the same
CN104952687B (en) * 2014-03-31 2018-02-27 株式会社岛津制作所 Ultraviolet lamp and the analytical equipment with the ultraviolet lamp

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