JPH1173924A - Film electrode product for electrodeless discharge lamp, and manufacture and manufacturing device for the same, and electrodeless discharge lamp using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film electrode product for an electrodeless discharge lamp, wherein a polyethylene terephthalate film is prevented from boring even if it is turned on, and manufacture and a manufacturing device of it, also the electrodeless discharge lamp using the film electrode product for the electrodeless discharge lamp. SOLUTION: A film electrode product 11 for an electrodeless discharge lamp of the invention is constructed, so that a pair of rectangular aluminum electrodes 2 having connecting terminals at the ends are provided in parallel on the surface of a polyethylene terephthalate film 4 via film side adhesive layers 5 and form film electrodes 6 for electrodeless discharge lamp, and electrode side adhesive layers 13 are formed on the exposed surface of the rectangular aluminum electrodes 2. Also acrylic adhesive layers 14 are formed on the film side adhesive layers 5 side of the polyethylene terephthalate film 4 and the electrode side adhesive layers 13 side of the rectangular aluminum electrodes 2, thus the film electrodes 6 for the electrodeless discharge lamp are installed freely detachably on the surface of a separator 8 using the acrylic adhesive layers 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electrophotographic copying machine,
Film-shaped electrode for electrodeless discharge lamps (hereinafter abbreviated as "film-shaped electrode"), which is used for arranging electrodes of electrodeless discharge lamps used for OA equipment such as image scanners, fax machines, digital PPCs, and the like. The present invention relates to a production method, a production apparatus thereof, and an electrodeless discharge lamp (hereinafter abbreviated as “lamp”) using the film-shaped electrode product.

[0002]

2. Description of the Related Art Conventionally, a cold cathode discharge lamp has been used as a light source for OA equipment. However, since the cold cathode discharge lamp has a low luminous efficiency and a low luminous speed, lamps in which these are improved have recently been awarded in OA equipment which requires high performance.

In the lamp, as shown in FIG. 9, two rectangular aluminum electrodes 2 are arranged on the outer periphery of a cylindrical glass tube 1 so as to face each other. A rare gas such as xenon is sealed therein. Reference numeral 3 denotes a pair of left and right lids. The lamp is sealed in the cylindrical glass tube 1 by applying an AC voltage (approximately 2.6 KV) to the rectangular aluminum electrode 2 and flowing a current between the opposed rectangular aluminum electrodes 2. When a rare gas is excited, the phosphor emits light with that energy and is used as a light source.

[0004] However, although the above lamp is excellent in function as a light source, in the manufacturing process thereof,
Aluminum strip 2 on the outer surface of cylindrical glass tube 1
Has to be performed manually each time, and there is a problem that the manufacturing efficiency is low.

Therefore, as shown in FIG. 10, the present applicant has proposed a polyethylene terephthalate film (hereinafter referred to as “PE”).
T-film ") 4 and a film-side pressure-sensitive adhesive layer 5
A film-shaped electrode 6 having a configuration in which the strip-shaped aluminum electrode 2 is provided through the intermediary is devised. An adhesive layer 7 for sticking an electrode is provided on the exposed surface of the strip-shaped aluminum electrode 2 in the film-shaped electrode 6, and the film-side adhesive is formed. By utilizing the adhesive force of the agent layer 5 and the pressure-sensitive adhesive layer 7 for attaching an electrode, a film-shaped electrode product to which the separator 8 was attached was obtained. According to this, the film electrode 6 can be easily attached to the cylindrical glass tube 1 simply by peeling off the separator 8.

[0006]

However, when a lighting test is repeatedly performed on the lamp in which the film-shaped electrode 6 is wound around the cylindrical glass tube 1 under a high-temperature and high-humidity condition (60 ° C. × 90 RH%), a strip is obtained. Aluminum electrode 2
It has been found that there is a possibility that a hole will be formed in the PET film 4 near the edge of. That is, when the film-shaped electrode 6 is wound around the glass tube 1, as shown in FIG. 11, a convex portion caused by the thickness of the strip-shaped aluminum electrode 2 and the pressure-sensitive adhesive layer 7 on the outer periphery of the glass tube 1. Is formed. Therefore, a gap 9 is formed between the end face of the strip-shaped aluminum electrode 2 and the film-side pressure-sensitive adhesive layer 5, and the film-side pressure-sensitive adhesive layer 5 near the edge of the strip-shaped aluminum electrode 2 is relatively thin. Become. Therefore, when an AC voltage is applied to such a film-shaped electrode 6 to turn on the lamp, the phase of the voltage always changes, so that an electric shock is repeatedly applied to the edge of the strip-shaped aluminum electrode 2. The film-side pressure-sensitive adhesive layer 5 is damaged, and the PET film 4 is eventually deteriorated. In addition, electric charges concentrate on the edge of the strip-shaped aluminum electrode 2 and discharge occurs in the gap 9. As a result, the molecular chain of polyethylene terephthalate is hydrolyzed and cut under high temperature and high humidity conditions, Finally, there is a problem that a hole is formed in the PET film 4. If such a hole is made, insulation failure occurs and the reliability of the lamp is impaired.

The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a film-shaped electrode product in which a hole is not formed in a PET film even when a lamp is turned on, and a film-shaped electrode product. It is an object of the present invention to provide a manufacturing method that can be used, an apparatus for manufacturing the same, and a lamp using the film-shaped electrode product.

[0008]

In order to achieve the above object, the present invention provides a pair of strip-shaped aluminum electrodes having connection terminals at one end on one side of a PET film via a film-side adhesive layer. Are arranged side by side to form a film-like electrode, an electrode-side pressure-sensitive adhesive layer is formed on an exposed surface of the strip-shaped aluminum electrode, and an acrylic-based pressure-sensitive adhesive layer is formed on the formation side of the film-side pressure-sensitive adhesive layer and the electrode-side pressure-sensitive adhesive layer. An adhesive layer is formed,
A first aspect of the present invention is a film-shaped electrode product in which the above-mentioned film-shaped electrode is detachably attached to one surface of a separator using the acrylic pressure-sensitive adhesive layer. Also, PET
On one surface of the film, a film-shaped electrode is formed by juxtaposing a pair of strip-shaped aluminum electrodes having connection terminals at the ends via a film-side pressure-sensitive adhesive layer, and an electrode is formed on an exposed surface of the strip-shaped aluminum electrode. Side pressure-sensitive adhesive layer is formed, on the formation side of the film-side pressure-sensitive adhesive layer and the electrode-side pressure-sensitive adhesive layer,
An acrylic pressure-sensitive adhesive layer is formed, and by using this acrylic pressure-sensitive adhesive layer, a film-shaped electrode product is detachably attached to one surface of a separator in a state where a plurality of film-shaped electrodes are arranged in parallel. This is the gist of 2. Furthermore, on one surface of the band-shaped electrode forming separator, a large number of strip-shaped aluminum electrodes are set in pairs, with the electrode-side adhesive layer interposed therebetween.
A step of preparing a film with an electrode, which is juxtaposed in a state perpendicular to the longitudinal direction of the electrode forming separator, and a first laminated film in which a film-side pressure-sensitive adhesive layer is formed on one surface of a belt-shaped PET film. The step of preparing, and the step of joining the strip-shaped aluminum electrode juxtaposed surface of the film with electrodes and the film-side pressure-sensitive adhesive layer forming surface of the first laminated film to integrate them, A slit or at least a portion is cut in a portion of the strip-shaped PET film between one set of strip-shaped aluminum electrodes and another set of strip-shaped aluminum electrodes adjacent to the set, and the strip-shaped aluminum electrodes are separated by one set. Remaining P
A step of attaching a connection terminal to one end of the strip-shaped aluminum electrode, and a step of attaching a connection terminal to one end of the strip-shaped aluminum electrode, and an acrylic pressure-sensitive adhesive layer formed on one surface of the strip-shaped separator. Preparing a second laminated film, exposing the electrode-side pressure-sensitive adhesive layer by exfoliating the electrode-forming separator in the integrated body, and exposing the film-side pressure-sensitive adhesive layer; and A third aspect of the present invention is to provide a method for producing a film-shaped electrode product, comprising: a step of joining an acrylic pressure-sensitive adhesive layer-formed surface of the two laminated films to integrate them. And a step of preparing a film-shaped electrode product having a plurality of film-shaped electrodes; and a step of cutting the strip-shaped separator of the film-shaped electrode product into two sets of strip-shaped aluminum electrodes. 4th production method
The summary of the Further, a belt-shaped electrode forming separator having an aluminum thin plate adhered to one surface thereof via an electrode-side pressure-sensitive adhesive layer, and a moving means for relatively moving a rotary cutter disposed opposite to the aluminum thin plate, A rotary cutter for half-cutting the aluminum thin plate at a predetermined interval in a direction orthogonal to the longitudinal direction at the time of relative movement by the moving means, and between the electrode forming portion of the aluminum thin plate having undergone the half-cut and another electrode forming portion adjacent thereto; Means for removing a plurality of strip-shaped aluminum electrodes in a state perpendicular to the longitudinal direction on one surface of a strip-shaped electrode forming separator by removing unnecessary portions of the strip-shaped electrode forming separator, and strips of the electrode forming separator obtained by the rotary cutter. A film-side pressure-sensitive adhesive layer is formed on one side of a belt-shaped PET film Means for supplying a first laminated film, and two strip-shaped aluminum electrodes as a set, and slit or at least a portion of the strip-shaped PET film between this set and another set adjacent thereto. A means for cutting a part of the strip-shaped aluminum electrodes so as to be individually covered with the remaining PET film for each set, and a means for attaching a connection terminal to one end of the strip-shaped aluminum electrodes, A strip-shaped aluminum electrode remains on each side of the above P
Means for exfoliating the electrode-forming pressure-sensitive adhesive layer by peeling the electrode-forming separator from the electrode-forming separator individually covered with the ET film and exposing the film-side pressure-sensitive adhesive layer; A fifth aspect of the present invention is an apparatus for producing a film-shaped electrode product, comprising: means for supplying a second laminated film having an acrylic pressure-sensitive adhesive layer formed on one surface. Furthermore, a pair of strip-shaped aluminum electrodes having connection terminals in the above-mentioned film-shaped electrode product are juxtaposed on the outer peripheral surface of a transparent tubular body whose both ends are closed and a rare gas is sealed therein. In the state where both connection terminals are positioned at one end of the tubular body, the film-shaped electrodes are arranged, and both strip-shaped aluminum electrodes are disposed inside and are adhered to face each other. The lamp is referred to as a sixth gist.

In other words, the present inventors have stated that in the film-shaped electrode 6 as shown in FIG. 10, in order to prevent a hole from being formed in the PET film, the gap 9 shown in FIG. I thought and made various studies on it. As a result, if a new acrylic pressure-sensitive adhesive layer is formed at the portion where the film-shaped electrode and the transparent tubular body are bonded, discharge will not occur in the voids, and as a result, holes will be formed in the PET film. Thus, two types of film-shaped electrode products were devised. And, if this film-shaped electrode product is used, the voids generated due to the thickness of the strip-shaped aluminum electrode and the like become small, so even if the obtained lamp is turned on under high-temperature and high-humidity conditions, a hole is formed in the PET film. There is an advantage that the reliability is not increased. In addition, when the strip-shaped aluminum electrode is attached to the cylindrical body, there is an advantage that the lamp can be easily produced simply by peeling the separator from the film-shaped electrode product and winding the film-shaped electrode around the outer periphery of the cylindrical body. Furthermore, a film-shaped electrode product in which a plurality of film-shaped electrodes are adhered to a band-shaped separator is supplied to a lamp production line as it is, and the film-shaped electrode is mechanically peeled off from the band-shaped separator to form a cylindrical body. And has the advantage that it can be continuously and automatically produced.

According to the method for producing a film-shaped electrode product of the present invention, for example, a film with an electrode and a first laminated film are prepared simultaneously and in parallel, and then both are bonded to each other at a predetermined portion of the first laminated film. , And attaching a connection terminal, a film-shaped electrode product having a plurality of film-shaped electrodes can be easily obtained. In addition, according to this manufacturing method, it is possible to provide the manufacturing process of the lamp after the manufacturing process, so that there is an advantage that continuous automatic production of the lamp becomes possible. Furthermore, following the manufacturing process of the manufacturing method of obtaining a film-shaped electrode product of the embodiment having a plurality of film-shaped electrodes, if the strip-shaped separator is cut so as to be a set of strip-shaped aluminum electrodes, it is easy to use other embodiments. A film electrode product can also be obtained.

[0011] In particular, in the above-mentioned production method, the step of preparing the electrode-attached film is performed by half-cutting a thin aluminum plate adhered to one surface of the strip-shaped separator at a predetermined interval in a direction orthogonal to the longitudinal direction thereof, and forming an electrode-formed portion adjacent to the electrode-formed portion. In the case where a plurality of strip-shaped aluminum electrodes are arranged side by side in a state perpendicular to the longitudinal direction on one surface of the strip-shaped separator by removing an unnecessary portion between This is advantageous from the viewpoint of sex. Also, when the above half cut is performed by a rotary cutter,
It is further advantageous from the viewpoint of productivity.

Further, according to the apparatus for manufacturing a film-shaped electrode product of the present invention, a series of steps up to commercialization can be continuously performed in the manufacture of the film-shaped electrode product, which is advantageous in terms of cost in mass production. It is. In particular, in the above-described manufacturing apparatus, when a means for cutting the strip-shaped separator into two sets of strip-shaped aluminum electrodes is provided, it is possible to continuously manufacture a film-shaped electrode product for each set, and to perform multi-product small-quantity production or This may be advantageous when manufacturing lamps of complex shapes by hand.

Further, according to the lamp of the present invention, the luminous efficiency is high and the luminous speed is high as compared with the cold-cathode discharge tube lamp, so that it is particularly advantageous as a light source for OA equipment requiring high illuminance. .

In the present invention, "half cut"
The term “cut” refers to a cutting in which a laminate of two or more layers is not completely cut in the stacking direction, but is left without cutting at least one layer.

[0015]

Next, an embodiment of the present invention will be described.

FIG. 1 shows an embodiment of a film-shaped electrode product according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. As shown in the drawing, this film-shaped electrode product 11 has a pair of strip-shaped aluminum electrodes 2 having a connection terminal 12 at one end on one side of a PET film 4 with a film-side adhesive layer 5 interposed therebetween. The film-shaped electrode 6 is provided. An electrode-side pressure-sensitive adhesive layer 13 is formed on the exposed surface of the strip-shaped aluminum electrode 2 (the surface opposite to the surface to which the PET film 4 is bonded). An acrylic pressure-sensitive adhesive layer 14 is formed on the side on which the film-side pressure-sensitive adhesive layer 5 and the electrode-side pressure-sensitive adhesive layer 13 are formed, and the separator 8 is peeled off using the adhesive force of the acrylic pressure-sensitive adhesive layer 14. Mounted freely.

The PET film 4 used for the film-shaped electrode product 11 of the present invention has an advantage that it has transparency and is not colored or discolored by a change in light or temperature.

As a material for forming the film-side pressure-sensitive adhesive layer 5 and the electrode-side pressure-sensitive adhesive layer 13, an acrylic pressure-sensitive adhesive containing an acrylate-based copolymer as a main component is preferably used. That is, since this acrylic pressure-sensitive adhesive is strong against light and temperature changes, its adhesive strength does not decrease even when used for a lamp, and excellent adhesive strength can be maintained for a long period of time. The acrylic pressure-sensitive adhesive is conventionally known, such as a non-color-change type curing agent (for example, Coronate HL manufactured by Nippon Polyurethane Industry Co., Ltd.) or an antioxidant (for example, ADK STAB AO-60 manufactured by Asahi Denka Kogyo KK). Things can be blended. The amount of these components is preferably set to 5 parts by weight or less based on 100 parts by weight of the acrylate ester copolymer in consideration of not reducing the adhesive strength of the acrylic pressure-sensitive adhesive. The material for forming the film-side pressure-sensitive adhesive layer 5 and the material for forming the electrode-side pressure-sensitive adhesive layer 13 may be the same or different.

As the acrylate-based copolymer, the following adhesive component (component (A)), aggregation component (component (B)), and modifying component (component (C)) are known in the art. Those polymerized by the method are preferred. As the pressure-sensitive adhesive component (component (A)), alkyl acrylates having an alkyl group having 4 to 12 carbon atoms and alkyl groups having a carbon number of 4 are preferable from the viewpoint that tackiness can be imparted to the obtained copolymer.
To 12 alkyl methacrylates.
Examples of the aggregating component [component (B)] include alkyl acrylates having 1 to 4 carbon atoms in an alkyl group, alkyl methacrylates having 1 to 4 carbon atoms in an alkyl group,
Examples include vinyl acetate, styrene, acrylonitrile, vinylidene chloride and the like. Examples of the modifying component [(C) component] include those which provide a carboxyl group such as acrylic acid and methacrylic acid, and hydroxyethyl acrylate because the resulting copolymer can be modified so as to have good physical properties. Those that provide hydroxyl groups such as hydroxyethyl methacrylate and propylene glycol monoacrylate, those that provide amide groups such as acrylamide and methacrylamide, and those that provide epoxy groups such as glycidyl acrylate and glycidyl methacrylate. Can be

The connection terminal 12 is not particularly limited as long as it can transmit a current from an AC power supply to the strip-shaped aluminum electrode 2.
Conventionally known ones are used.

The above-mentioned acrylic pressure-sensitive adhesive is used as a material for forming the acrylic pressure-sensitive adhesive layer 14 formed on the film-side pressure-sensitive adhesive layer 5 and the electrode-side pressure-sensitive adhesive layer 13. The acrylic pressure-sensitive adhesive layer 14
The type of the acrylic pressure-sensitive adhesive used for the film-side pressure-sensitive adhesive layer 5 and the electrode-side pressure-sensitive adhesive layer 13 used for the electrode-side pressure-sensitive adhesive layer 13 are not necessarily required to be the same. This is preferable because it can be attached to the separator 8 in an extremely stable state.

The material of the strip-shaped separator 8 provided by using the acrylic pressure-sensitive adhesive layer 14 is as follows.
Although not particularly limited, a conventionally known PET for a separator, which does not firmly adhere the pressure-sensitive adhesive and can adhere to a peelable degree, is preferably used. In addition, the separator PET is obtained by subjecting a normal PET surface to a release treatment.

The film-shaped electrode product of the present invention is manufactured, for example, as follows. That is, first, an adhesive is applied to one surface of a strip-shaped electrode forming separator 20 made of the same material as the separator 8 by using a comma coater, a lip coater, a reverse coater, a fauten coater, a gravure coater, or the like. Forming an agent layer 13,
Aluminum electrode substrate 21 obtained by dry laminating a strip-shaped aluminum thin plate on the surface of this electrode-side pressure-sensitive adhesive layer 13
(Roll-shaped winding body, see FIG. 3) is prepared. Then
As shown in FIG. 3, the aluminum thin plate on the surface is half-cut by an aluminum thin plate half-cutting device 22 while the aluminum electrode base material 21 is unwound into a strip shape, so that a strip-shaped aluminum electrode shape is developed (the cut portion). Is indicated by a broken line 2 '). This half-cutting device 22
Is not particularly limited, but a rotary cutter is preferable because continuous processing is easy. Then, unnecessary aluminum thin plates are sequentially stripped off by the unnecessary aluminum removing device 23 to form a pair of strip-shaped aluminum electrodes 2. In this way, a plurality of sets of strip-shaped aluminum electrodes 2 are obtained, and the electrode-attached film 24 attached to the strip-shaped electrode forming separator 20 via the electrode-side pressure-sensitive adhesive layer 13 is obtained, and is wound into a roll. When the unnecessary aluminum portion is peeled off, it is preferable that the electrode-side pressure-sensitive adhesive layer 13 at that portion is removed together with the unnecessary aluminum portion.

On the other hand, on one side of the belt-shaped PET film 4,
Comma coater, lip coater, reverse coater,
An adhesive is applied by a fauten coater, a gravure coater, or the like to prepare a first laminated film 25 on which the film-side adhesive layer 5 is formed. In addition, the above-mentioned
The width of the T film 4 is usually the same as the width of the strip-shaped electrode forming separator 20.
In consideration of exposing 2 to the outside of the PET film 4, a separator shorter than the width of the strip electrode forming separator 20 may be used. When the laminated film 25 is formed into a roll-shaped wound body for easy storage and transportation, a separator for protecting the adhesive layer is attached to the surface of the adhesive layer 5 on the film side. The adhesive layer protective separator may be peeled off.

Then, as shown in FIG. 4, the electrode-attached film 24 and the laminated film 25 (both roll-shaped winding bodies) are unwound and passed between opposing movable rollers 26 and 27 so that the electrode The surface of the attached film 24 on which the strip-shaped aluminum electrodes are arranged and the surface of the laminated film 25 on which the film-side pressure-sensitive adhesive layer 5 is formed are joined to integrate them. At this time, in order to easily attach the connection terminal 12 to one end of the strip-shaped aluminum electrode 2,
It is preferable that an ear separator 28 is interposed between the layer 4 and the laminated film 25 as shown in the figure. In the integrated film, the strip-shaped aluminum electrodes 2
It is preferable that the electrode forming separator 20 is covered with the ET film 4 so that the side of the electrode forming separator 20 is kept flat. That is, when the separator 8 of the obtained film-shaped electrode product 11 is removed and the film-shaped electrode 6 is attached to the cylindrical glass tube, the gap formed by the thickness of the strip-shaped aluminum electrode 2 or the like is reduced. Because you can.

Next, from the integrated film, one set
Aluminum electrode 2 and another pair of adjacent aluminum electrodes
Of the PET film 4 between the rectangular aluminum electrode 2
At least a part of PET film half-cutting device 2
At 9 (P shown in FIG. 4) ₁), And a set of strips
Aluminum electrodes 2 are individually covered with PET film 4
To the state that has been.

Subsequently, the strip-shaped aluminum electrode 2
For mounting the connection terminals 12 at one end of, while winding the ear separator 28, the inside of the cut P ₁ PE
A part of the T film 4 (K shown in FIG. 4) was peeled off, and the dispenser 3 was placed on the exposed surface of the strip-shaped aluminum electrode 2.
According to 0, a conventionally known thermosetting conductive adhesive is applied.
Then, the connection terminal 12 is placed on this coating surface, so that the connection terminal 1 is connected to one end of the strip-shaped aluminum electrode 2.
Attach 2. Then, the connection terminals 12 of the strip-shaped aluminum electrode 2 extend from one edge in the longitudinal direction of the PET film 4.
The peeled PET film 4 is attached again so that is exposed to the outside. What was obtained in this way,
As shown in FIG. 4, a one-step coil 32 (roll-shaped winding body) is sandwiched between mirror sheets (cushion material) 31 so as not to be damaged during storage or transportation.

Here, an acrylic pressure-sensitive adhesive layer 14 is formed on one surface of the separator 8.
An acrylic pressure-sensitive adhesive layer-forming base material 34 having an ultra-light release separator 33 formed on one surface thereof (a roll-shaped wrapped body, FIG.
Prepare). Then, as shown in FIG. 5, the acrylic adhesive layer-forming separator 34 (second laminated film) is pulled out while the acrylic adhesive layer-forming base material 34 is fed out and the ultra-light release separator 33 is peeled off. Supply on line. In addition, while the mirror sheet 31 is wound from the one-step coil 32, the electrode forming separator 20 is peeled off and unwound, and the movable roller 3 is opposed to the movable roller 3.
6 and 37, the one-step coil 3
The separator 8 is attached to the side surface (lower surface) of the two strip-shaped aluminum electrodes side by side through the acrylic pressure-sensitive adhesive layer 16 to integrate them. In this way, the left and right gaps (FIG. 1) due to the thickness of the strip-shaped aluminum electrode 2 and the like are formed.
1) can be suppressed. After the electrode forming separator 20 is peeled off, it is preferable that the film-shaped electrode 6 be provided to the production line with high accuracy. Also, when integrating, the connection terminals 1
It is preferable that the connection terminal be released from the movable rollers 36 and 37 so that the connection terminal 2 is not crushed (not shown).

Subsequently, two cuts having a fixed width are made in the half cut device 38 for forming the gap P (P ₂ in FIG. 5). Then, the gap P shown in FIG.
Unnecessary PET film L is removed from the portion. At this time, it is preferable that a portion of the acrylic pressure-sensitive adhesive corresponding to the gap P is removed together with the unnecessary PET film L. Thus, the film-shaped electrode product 11 'of the present invention shown in FIG. 6 can be obtained. This is a mode different from the film-shaped electrode product 11 shown in FIGS. 1 and 2, in which a plurality of film-shaped electrodes 6 are formed on the surface of the strip-shaped separator 8. FIG.
A film-shaped electrode product 11 'having a gap P shown in FIG.
The film-shaped electrode 6
However, there is an advantage that it can be easily supplied to the lamp production line because it is easily mechanically removed from the separator 8. And the film-shaped electrode product 11 ′ of the present invention.
In order to avoid damage during storage and transportation, a mirror-shaped sheet may be interposed between the rolls as shown in FIG.

Then, the film-shaped electrode product 11 '
Is cut along the alternate long and short dash line S shown in FIG. 6 to obtain a film-shaped electrode product 11 (a strip-shaped aluminum electrode 2) according to the first embodiment of the present invention shown in FIGS.
Are arranged side by side in pairs.)

The film-shaped electrode products 11, 11 'thus obtained are obtained by removing the separator 8 and disposing it on a transparent tubular body such as a cylindrical glass tube.
Used as a lamp electrode. Even when the lamp thus obtained is turned on, no discharge is caused in the voids formed due to the thickness of the strip-shaped aluminum electrode 2 or the like, so that holes are not formed in the PET film 4. Therefore, the film-shaped electrode product 11 of the present invention,
If 11 ′ is used, a highly reliable lamp can be obtained.

The thickness of the film-side pressure-sensitive adhesive layer 5 is set to 2 to 100 μm in consideration of making the gap smaller.
m is preferably set in the range of m. Above all,
It is preferable that the distance is set in the range of 5 to 50 μm, and most preferably in the range of 10 to 30 μm.

The electrode-side pressure-sensitive adhesive layer 13 has a thickness of
It is preferable that the thickness be set in the range of 2 to 100 μm in consideration of making the gap smaller. Above all, 5
It is preferable that the distance is set in the range of 50 μm, and optimally in the range of 10 to 30 μm.

The thickness of the acrylic pressure-sensitive adhesive layer 14 is set to 2 to 100 in consideration of making the gap smaller.
It is preferable that the distance be set in the range of μm. Especially, it is preferable to set it in the range of 10 to 50 μm, and optimally, it is in the range of 10 to 30 μm.

Next, an example of the lamp of the present invention is shown in FIGS. This is a glass tube 50 whose both ends are closed, rubber 51 for ensuring insulation between both connection terminals 12, and a fluorescent paint attached to the inner peripheral surface of the glass tube 50 is applied. 52 and a film-like electrode 6 adhered to the outer peripheral surface of the glass tube 50. The film-shaped electrode 6 is attached to the outer peripheral surface of the glass tube 50 in a state where the strip-shaped aluminum electrode 2 with the connection terminal 12 is inside and covered with the PET film 4 from the outside. In addition, a pair of strip-shaped aluminum electrodes 2 with connection terminals 12 are arranged to face each other in order to effectively excite the rare gas sealed in the glass tube 50 and increase the illuminance. In addition, both connection terminals 12 are attached to one end of the glass tube 50 so as to be positioned in consideration of wiring and the like. The inner surface of the glass tube 50 is coated with the fluorescent paint 52 in a state where only one of the gaps formed between the strip-shaped aluminum electrodes 2 with the connection terminals 12 is opened. To improve the illuminance.

Next, examples will be described together with comparative examples.

[0037]

EXAMPLE A film-shaped electrode product having the structure shown in FIGS. 1 and 2 was produced according to the above-described method under the following conditions.

[Manufacturing conditions of film-shaped electrode product] Material of PET film 4: PET (Lumirror T60 manufactured by Toray Industries, Ltd.) Thickness of PET film 4: 50 μm Material of film-side adhesive layer 5: Acrylic adhesive [Acrylic acid] 100 parts by weight of an ester copolymer (Panlon S-2012 manufactured by Shin-Nakamura Chemical Co., Ltd.), 0.23 part by weight of non-yellowing isocyanate (Coronate HL manufactured by Nippon Polyurethane Industry Co., Ltd.), and hindered phenol Antioxidant (ADK STAB AO-60 manufactured by Asahi Denka Kogyo) 0. 17 parts by weight] Thickness of the film-side pressure-sensitive adhesive layer 5: 15 μm Thickness of the strip-shaped aluminum electrode 2: 50 μm Material of the electrode-side pressure-sensitive adhesive layer 13: Acrylic pressure-sensitive adhesive (with the above-mentioned film-side pressure-sensitive adhesive layer 5) The same material was used.) Thickness of the electrode-side pressure-sensitive adhesive layer 13: 15 μm Material of the acrylic pressure-sensitive adhesive layer 14: Acrylic pressure-sensitive adhesive (The same as the above-mentioned film-side pressure-sensitive adhesive layer 5 was used.) Thickness of acrylic pressure-sensitive adhesive layer 14: 20 μm Material of separator 8: PET for separator (Therapy BK manufactured by Toyo Metallizing Co.) Thickness of separator 8: 75 μm Interval T: 13 mm Width of gap P: 5 mm

Using the film-shaped electrode product thus obtained, a lamp was prepared in which a strip-shaped aluminum electrode was disposed on the outer periphery of a glass tube having a tube diameter of 8 mm.

[0040]

Comparative Example A film-shaped electrode product (see FIG. 10) was produced in the same manner as in the example except that the acrylic pressure-sensitive adhesive layer 14 was not formed, and a lamp was produced using this.

Five each of the thus obtained Examples and Comparative Examples were prepared and subjected to a lamp lighting aging test by the following method.

[Lamp Aging Test] Under a high-temperature and high-humidity environment (60 ° C. × 90% RH), a cycle of turning on the lamp for 25 seconds and then turning off the lamp for 5 seconds was performed for a predetermined period of 30 seconds.

When the cycle of 30 seconds was continuously performed for 100 hours for all of the comparative examples, holes were formed in the PET film. On the other hand, in all of the examples, even when the cycle was continuously performed for 30 seconds for 500 hours or more, no holes were formed in the PET film.

[0044]

As described above, in the film-shaped electrode product of the present invention, a strip-shaped aluminum electrode is juxtaposed on one side of a PET film via a film-side pressure-sensitive adhesive layer. An electrode-side pressure-sensitive adhesive layer is formed on the exposed surface, an acrylic pressure-sensitive adhesive layer is formed on the film-side pressure-sensitive adhesive layer and the electrode-side pressure-sensitive adhesive layer formation side, and a separator is attached using the acrylic pressure-sensitive adhesive layer. Configuration. For this reason, the gap created by the thickness of the strip-shaped aluminum electrode or the like can be reduced, and therefore, no discharge occurs in this gap. Therefore, there is an advantage that a film-shaped electrode product that can be used for a long period of time can be provided without making a hole in the PET film.

In the case of the film-shaped electrode product of the present invention having a set of strip-shaped aluminum electrodes, the lamp can be easily manufactured simply by removing the separator and adhering to the cylindrical body. Lamps can be produced efficiently. Also, as described above, instead of bonding only the strip-shaped aluminum electrode to the cylindrical body,
Since the electrodes are adhered to the entire PET film, the electrodes are less likely to be peeled off from the cylindrical body, and there is an advantage that a lamp suitable for long-term use can be obtained.

According to the method of the present invention for producing a film-shaped electrode product in which a plurality of film-shaped electrodes are arranged in parallel, a large number of film-shaped electrodes can be produced. Therefore, there is an advantage that continuous automatic production of lamps can be efficiently performed.

Further, subsequent to the above-mentioned manufacturing method, by simply cutting the strip-shaped separator into two sets of strip-shaped aluminum electrodes, a film-shaped electrode product for each set can be easily obtained.

In the method of manufacturing a film-like electrode in which a plurality of film-like electrodes are arranged in parallel, the step of preparing a film with an electrode is performed by half-cutting an aluminum thin plate attached to one surface of a strip-like separator. When the removal is performed by removing the portion, there is an advantage that the productivity can be improved. Further, in the above manufacturing method, when half cutting is performed by a rotary cutter, there is an advantage that further improvement in productivity can be realized.

Further, according to the apparatus for manufacturing a film-shaped electrode product of the present invention, a series of manufacturing steps up to commercialization can be continuously performed in manufacturing a film-shaped electrode product having a plurality of film-shaped electrodes. It will be suitable for production and in that case a significant reduction in manufacturing costs will be realized.

Further, according to the lamp of the present invention, the luminous efficiency is good and the luminous speed is high as compared with the cold cathode discharge tube lamp, so that it is suitable as a light source for OA equipment which requires high illuminance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a film-shaped electrode product of the present invention.

FIG. 2 is a sectional view taken along line XX of the film-shaped electrode product shown in FIG.

FIG. 3 is a schematic explanatory view of a production process of the film-shaped electrode product of the present invention.

FIG. 4 is a schematic explanatory view of a production process of the film-shaped electrode product of the present invention.

FIG. 5 is a schematic explanatory view of a production process of the film-shaped electrode product of the present invention.

FIG. 6 is a perspective view showing another example of the film-shaped electrode product of the present invention.

FIG. 7 is a perspective view showing an example of the lamp of the present invention.

FIG. 8 is a sectional view taken along line XX of the lamp shown in FIG. 7;

FIG. 9 is a perspective view showing a configuration of a conventional lamp.

FIG. 10 is a sectional view showing an example of a film-shaped electrode product.

FIG. 11 is an explanatory diagram for explaining a problem of a conventional film-shaped electrode.

[Explanation of symbols]

 2 strip-shaped aluminum electrode 4 PET film 5 film-side pressure-sensitive adhesive layer 6 film-shaped electrode 8 separator 11 film-shaped electrode product 13 electrode-side pressure-sensitive adhesive layer 14 acrylic pressure-sensitive adhesive layer

Claims (9)

[Claims] 1. A film-shaped electrode for an electrodeless discharge lamp comprising a pair of strip-shaped aluminum electrodes having connection terminals at their ends arranged side by side on one surface of a polyethylene terephthalate film via a film-side adhesive layer. An electrode-side pressure-sensitive adhesive layer is formed on the exposed surface of the strip-shaped aluminum electrode, and an acrylic pressure-sensitive adhesive layer is formed on the side where the film-side pressure-sensitive adhesive layer and the electrode-side pressure-sensitive adhesive layer are formed. A film-shaped electrode product for an electrodeless discharge lamp, wherein the film-shaped electrode for an electrodeless discharge lamp is detachably attached to one surface of a separator using an adhesive layer. 2. A pair of strip-shaped aluminum electrodes having connection terminals at the ends are juxtaposed on one surface of a polyethylene terephthalate film via a film-side adhesive layer to constitute a film-shaped electrode for an electrodeless discharge lamp. An electrode-side pressure-sensitive adhesive layer is formed on the exposed surface of the strip-shaped aluminum electrode, and an acrylic pressure-sensitive adhesive layer is formed on the side where the film-side pressure-sensitive adhesive layer and the electrode-side pressure-sensitive adhesive layer are formed. A film-like electrode for an electrodeless discharge lamp, wherein a plurality of film-like electrodes for an electrodeless discharge lamp are detachably attached to one surface of a separator in a state of being arranged in parallel with each other using an adhesive layer. Product. 3. One surface of a strip-shaped electrode forming separator,
A step of preparing a plurality of strip-shaped aluminum electrodes in pairs and preparing an electrode-attached film which is arranged side by side in a state orthogonal to the longitudinal direction of the electrode-forming separator via an electrode-side pressure-sensitive adhesive layer; A step of preparing a first laminated film in which a film-side pressure-sensitive adhesive layer is formed on one surface of a polyethylene terephthalate film, and a film side of the first laminated film with the strip-shaped aluminum electrode juxtaposed surface of the film with electrodes. A step of joining the pressure-sensitive adhesive layer-forming surface to integrate them, and a belt-like polyethylene terephthalate between one set of strip-shaped aluminum electrodes and another set of strip-shaped aluminum electrodes adjacent thereto in the integrated body. A slit is formed in the film part or at least a part of the film is cut out. A step of individually covering with a phthalate film, and a step of attaching a connection terminal to one end of the strip-shaped aluminum electrode, further comprising an acrylic pressure-sensitive adhesive layer formed on one surface of the strip-shaped separator A step of preparing a second laminated film, and a step of exposing the electrode-side pressure-sensitive adhesive layer by exfoliating the electrode-forming separator in the integrated body and exposing the film-side pressure-sensitive adhesive layer, Bonding the surface of the second laminated film on which the acrylic pressure-sensitive adhesive layer is formed to integrate the two with each other, thereby producing a film-shaped electrode product for an electrodeless discharge lamp. 4. The step of preparing the film-shaped electrode product for an electrodeless discharge lamp according to claim 2, and the step of preparing a strip-shaped separator of the film-shaped electrode product for an electrodeless discharge lamp together with a set of two strip-shaped aluminum electrodes. 2. The method for producing a film-shaped electrode product for an electrodeless discharge lamp according to claim 1, comprising the step of cutting into pieces. 5. The method according to claim 3, wherein the step of preparing the electrode-attached film includes the step of preparing the aluminum sheet adhered to one surface of the strip-shaped electrode-forming separator in the longitudinal direction of the strip-shaped electrode-forming separator. By half-cutting at a predetermined interval in the orthogonal direction and removing unnecessary parts between the electrode forming part and the other electrode forming part adjacent thereto, many sets of strip-shaped aluminum electrodes are arranged side by side in pairs. A method for producing a film-shaped electrode product for an electrodeless discharge lamp, which is a step of forming a film with electrodes. 6. A method according to claim 5, wherein the aluminum sheet is half-cut with a rotary cutter. 7. A strip-shaped electrode forming separator having an aluminum thin plate adhered to one surface thereof via an electrode-side pressure-sensitive adhesive layer,
A moving means for relatively moving a rotary cutter disposed in opposition to the aluminum thin plate, and a rotary cutter for half-cutting the aluminum thin plate at a predetermined interval in a direction orthogonal to the longitudinal direction when the relative moving by the moving means, Unnecessary portions between the electrode forming portion of the aluminum thin plate having undergone the half-cut and other electrode forming portions adjacent thereto are removed to form a plurality of strips on one surface of the strip-shaped electrode forming separator in a state orthogonal to the longitudinal direction thereof. Means for juxtaposition of aluminum electrodes, and a film-side pressure-sensitive adhesive layer formed on one surface of a belt-shaped polyethylene terephthalate film on the side of the strip-shaped aluminum electrodes of the electrode forming separator obtained by the rotary cutter. Means for supplying one laminated film and two strip-shaped aluminum electrodes And slit or cut off at least a portion of the strip-shaped polyethylene terephthalate film between this set and another set adjacent thereto, and the strip-shaped aluminum electrodes are individually separated by a residual polyethylene terephthalate film for each set. And a means for attaching a connection terminal to one end of the strip-shaped aluminum electrode, and further, the strip-shaped aluminum electrodes are individually covered by the remaining polyethylene terephthalate film for each pair on the one surface. Means for exfoliating the electrode-forming separator from the electrode-forming separator and exposing the electrode-side pressure-sensitive adhesive layer and the film-side pressure-sensitive adhesive layer, and an acrylic pressure-sensitive adhesive layer on one surface of the strip-shaped separator on the exposed surface. To supply the second laminated film with DOO electrodeless discharge lamp film-like electrodes product manufacturing apparatus comprising: a. 8. The manufacturing apparatus according to claim 7, further comprising means for cutting the separator of the film-shaped electrode product for an electrodeless discharge lamp according to claim 2 for each set of two strip-shaped aluminum electrodes. Manufacturing equipment for film electrode products for electrodeless discharge lamps. 9. The film-shaped electrode product for an electrodeless discharge lamp according to claim 1 or 2, wherein an outer peripheral surface of a transparent tubular body in which both ends are closed and a rare gas is sealed therein is provided.
A film-shaped electrode for an electrodeless discharge lamp in which a set of two strip-shaped aluminum electrodes having connection terminals is juxtaposed,
With both connection terminals positioned at one end of the cylindrical body, both strip-shaped aluminum electrodes are disposed inside,
An electrodeless discharge lamp which is attached so as to face each other.