CN102211446A - Screen printing plate and manufacturing method thereof - Google Patents
Screen printing plate and manufacturing method thereof Download PDFInfo
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- CN102211446A CN102211446A CN2011100655349A CN201110065534A CN102211446A CN 102211446 A CN102211446 A CN 102211446A CN 2011100655349 A CN2011100655349 A CN 2011100655349A CN 201110065534 A CN201110065534 A CN 201110065534A CN 102211446 A CN102211446 A CN 102211446A
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Abstract
The invention provides a screen printing plate and a manufacturing method thereof. The screen printing plate (2) comprises an outer yarn (4) of an opening part (4c) made of resin net; an inner yarn (6) matched with the outer yarn (4) of the opening part (4c) and made of metal net; an emulsion layer (16) for printed patterns made of phototonus resin and formed with printed patterns (20) on the inner yarn (6); an emulsion layer (14) for alignment marks made of phototonus resin and formed with alignment marks (22) on the outer yarn (4). The printed patterns (20) and the alignment marks (22) being separated by a photo mask (F) are formed by exposing and developing the emulsion layer (16) for printed patterns and the emulsion layer (14) for alignment marks. Therefore, the relative displacement between the printed patterns of the inner yarn and the alignment marks of the outer yarn is avoided and the manufacturing cost is low.
Description
Technical field
The present invention relates to screen printing plate and manufacture method thereof that serigraphy is used.
Background technology
At present, as the printing process of the diaphragm pattern of the part beyond the electrode pattern of electronic components such as solar cell or its electrode pattern, use silk screen print method.And, in silk screen print method, use the screen printing plate of going up the coating photosensitive emulsion and exposing, develop and make at nets such as stainless steel (メ Star シ ヨ).In this screen printing plate, beyond the printed patterns corresponding, also be formed for making the alignment mark (ア ラ イ メ Application ト マ one Network) of the position alignment (closing わ せ Ru) that is printed thing and screen printing plate sometimes with being printed thing.And this alignment mark is in order to ensure large-area printed patterns zone or in order to ensure the involutory precision in high-precision position, requires to be configured in as far as possible the picture frame (Amount Vela of screen printing plate) the shape chase near.
Therefore, compare, adopt as far as possible usually and can guarantee to be large-area method for platemaking, promptly on picture frame shape chase, directly paste stainless steel net (directly stickup) method for platemaking forming the alignment mark zone with the inside dimensions of picture frame shape chase (interior cun).But, should directly paste the viewpoint that the infiltration (To じ body) of method for platemaking from printing the time suppresses, paste (Zhang り) (with respect to the direction of picture frame shape chase in bias, make the angle of difference tolerance that the machine direction of stainless steel net tilts certain and paste the method for attaching of (Stickers り pays け ゐ)) time, exist the service efficiency of stainless steel net low, the problem that the abandonment loss rate of stainless steel net uprises.Because this reason is directly pasted method for platemaking and is defined in the situation of using the thicker and cheap stainless steel net in line footpath usually.
On the other hand, when using the stainless steel net of the thin macropore (high オ one プ ニ Application グ) in high price and line footpath, in order to reduce manufacturing cost, also the method for platemaking that usually adopts is to make net (interior yarn) with the stainless steel (ス テ Application レ ス) that bonding agent will be provided with polyester (Port リ エ ス テ Le) the system net (outer yarn) of the cheapness of peristome and be disposed at outer yarn peristome to be joined together the silk screen body of formation composite construction.But, in the silk screen body of this composite construction, at present,, alignment mark is defined to interior yarn part because forming the zone, so compare, can't guarantee the large-area alignment mark zone that forms with the inside dimensions of picture frame shape chase.Therefore, exist can't be near the picture frame shape chase of screen printing plate the problem of configuration alignment mark.
As the method for eliminating this problem, can consider to paste the method (referring to Patent Document 0294～0296 section and Fig. 6 of 1) of alignment mark of having processed the alignment mark of metallic plate or having processed the silk screen of thin slice (シ one ト) at the upper surface of the outer yarn of the silk screen body of combination (コ Application PVC ネ one シ ヨ Application) structure or lower surface.Use the screen printing plate of this method alignment mark can be disposed at picture frame shape chase near, can guarantee the involutory precision in high-precision position etc.
Patent documentation 1:JP spy opens the 2004-130820 communique
But, the screen printing plate of patent documentation 1 is owing to paste the alignment mark of having processed the alignment mark of metallic plate or having processed the silk screen of sheet at upper surface, the lower surface of the outer yarn of the silk screen body of composite construction, produces the relative problem that misplaces so have easily during being formed at the printed patterns of yarn and be formed between the alignment mark of outer yarn.In addition, owing to also need to process in addition this alignment mark, and then the correct position of the upper surface of yarn or lower surface technology, device and the operation of pasting alignment mark outside also, so plate-making process is elongated, become the main cause that the manufacturing cost of screen printing plate raises.
Summary of the invention
Therefore, main purpose of the present invention be to provide a kind of in being formed at yarn printed patterns and be formed at outside be difficult to produce the screen printing plate and the manufacture method thereof of relative dislocation and manufacturing cost cheapness between the alignment mark of yarn.
The present invention is a kind of screen printing plate, it is characterized in that, it possesses: outer yarn which is provided with peristome, and described outer yarn is made of resin system net; Interior yarn, it is disposed at the peristome of described outer yarn, and yarn is made of metal system net in described; The printed patterns emulsion layer, it is made of photoresist, and is arranged at described interior yarn, and is formed with printed patterns; And alignment mark emulsion layer, it is made of photoresist, and be arranged at described outer yarn, and be formed with alignment mark, printed patterns and alignment mark expose in the lump, develop and form with emulsion layer with emulsion layer and alignment mark printed patterns across photomask.At this, so-called alignment mark is the mark of instigating printed patterns position that is formed at screen printing plate and the printing position contraposition that is printed thing to be used.
In the present invention because alignment mark is formed at outer yarn part, so alignment mark can be disposed at picture frame shape chase near, can carry out high-precision contraposition.And, because the printed patterns of yarn is to expose in the lump, develop across the photomask that is decorated with printed patterns portion and alignment key pattern portion with emulsion layer with the alignment mark emulsion layer that is arranged at outer yarn in being arranged at, thus in being formed at the printed patterns of yarn and be formed at outside be difficult to produce relative dislocation between the alignment mark of yarn.And then, because on the outer yarn that constitutes by resin system net, alignment mark is exposed, develops with emulsion layer and is formed with alignment mark,, can not produce the deterioration of the exposure accuracy that distinctive reflection of metal system net or the non-permeability of light cause so compare as the situation of outer yarn with using wire netting.
In addition, the present invention is a kind of manufacture method of screen printing plate, it is characterized in that it possesses: the operation of silk screen body that forms the composite construction of the interior yarn that constitutes by metal system net with the outer yarn that constitutes by resin system net that is provided with peristome and the peristome that is disposed at outer yarn; On the interior yarn of silk screen body, form the printed patterns emulsion layer that constitutes by photoresist, and on the outer yarn of silk screen body, form the operation that the alignment mark that is made of photoresist is used emulsion layer; And across photomask printed patterns is exposed simultaneously, develops with emulsion layer with emulsion layer and alignment mark, form printed patterns on the interior yarn and forming the operation of alignment mark simultaneously outside on the yarn.
In the present invention, in being formed at the printed patterns of yarn and be formed at outside be difficult to produce relative dislocation between the alignment mark of yarn, and can productivity ratio obtain the screen printing plate of low cost of manufacture well.
The invention effect
According to the present invention, because the printed patterns of yarn is to expose in the lump, develop across the photomask that is decorated with printed patterns portion and alignment key pattern portion with emulsion layer and the alignment mark emulsion layer that is arranged at outer yarn in being arranged at, so can between be difficult to produce formation printed patterns and alignment mark under the state of relative dislocation.And then, owing to forms alignment mark with emulsion layer and expose on the outer yarn that is made of resin system net, thereby the deterioration that can not produce the exposure accuracy that the distinctive reflection of metal system net or the non-permeability of light cause can form the alignment mark of hope, therefore, can realize the raising of printing precision.In addition, the outer yarn by the silk screen body uses resin system net and interior yarn to use metal system net, thereby can suppress the use amount of the metal system net of high price, can reduce the manufacturing cost of screen printing plate.
Above-mentioned purpose of the present invention, other purpose, feature and advantage can be from the explanations of the following specific embodiment of carrying out with reference to the accompanying drawings and are clearer.
Description of drawings
Fig. 1 (A) is the vertical view of an embodiment of expression screen printing plate of the present invention, (B) is rearview, (C) is the summary pie graph.
Fig. 2 is the figure of an embodiment that is used to represent the manufacture method of screen printing plate shown in Figure 1, (A) is vertical view, (B) is the summary pie graph.
Fig. 3 is that then Fig. 2 is used to illustrate and the figure of the manufacture method of screen printing plate (A) is vertical view, (B) is the summary pie graph.
Fig. 4 is that then Fig. 3 is used to illustrate and the figure of the manufacture method of screen printing plate (A) is vertical view, (B) is the summary pie graph.
Fig. 5 is that then Fig. 4 is used to illustrate that the part of the manufacture method of screen printing plate amplifies the summary pie graph.
Fig. 6 is the vertical view of expression photomask.
Fig. 7 is that then Fig. 5 is used to illustrate the vertical view of the manufacture method of screen printing plate.
Among the figure:
2 screen printing plates
4 outer yarns
The 4c peristome
Yarn in 6
8 silk screen bodies
14 alignment mark emulsion layers
16 printed patterns emulsion layers
20 printed patterns
22 alignment marks
The F photomask
The specific embodiment
One embodiment of screen printing plate of the present invention is described.Fig. 1 (A) is the vertical view of expression screen printing plate 2, and Fig. 1 (B) is a rearview, and Fig. 1 (C) is the summary procedure chart.Screen printing plate 2 possesses substantially: the silk screen body 8 with composite construction of outer yarn 4 and interior yarn 6; Picture frame shape chase 10.
Global shape is that the picture frame shape chase 10 of rectangle is made of aluminium or stainless steel etc., and for weight reduction, reduce mechanically deform, its cross section forms the tubular of rectangle, and is formed with slotted hole 10a etc. with the interval of regulation.
Be formed with the alignment mark emulsion layer 14 of the hope thickness that forms by photoresist outside on the printing surface 42 of yarn 4 (face of the dorsal part of screen printing plate 2).With on the emulsion layer 14, being disposed at up and down with the inboard at picture frame shape chase 10, the state in four directions is formed with circular alignment mark 22 at this alignment mark.Near the alignment mark of alignment mark 22 is colored with the rectangle part 24 of emulsion layer 14.Thus, make the contrast distinctness of alignment mark 22, can make the CCD camera that alignment mark 22 recognized looking property distinctness.And then, alignment mark be pasted with on emulsion layer 14 be used to strengthen, keep outside the tension force support 30 that constitutes by metal system band of tension force of yarn 4.Tension force support 30 avoid alignment mark 22 and painted rectangle part 24 and be disposed in the form of a ring and in large area peristome 4c around.
On the printing surface 62 (face of the dorsal part of screen printing plate 2) of interior yarn 6, be formed with the printed patterns emulsion layer 16 of the hope thickness that constitutes by photoresist.With on emulsion layer 16, be formed with printed patterns (for example electrode pattern of the comb of solar cell (Comb) shape) 20 at this printed patterns with the state of the middle body that is disposed at screen printing plate 2.In addition, printed patterns 20 only is to represent its extent of occupation with the chain-dotted line of simplifying usefulness, is not the concrete graphic design of expression.
Printed patterns 20 and alignment mark 22 are that the printed patterns of yarn 6 in being formed at is exposed in the lump, develops and form with the same photomask of emulsion layer 14 uses with emulsion layer 16 and the alignment mark that is formed at outer yarn 4.Therefore, the screen printing plate that is different from the prior art on the outer yarn of the silk screen body that will be pasted on composite construction to the alignment mark after the metallic plate processing, can form alignment mark on the yarn outside more simply, not need the high accuracy processing of metallic plate or metallic plate is pasted on special technology, device and the operation of the tram of outer yarn.
The screen printing plate 2 that is made of above structure is owing to form alignment mark 22 on the yarn 4 outside, thus alignment mark 22 can be disposed at picture frame shape chase 10 near, it is involutory to carry out high-precision position.And, because the printed patterns of yarn 6 exposes in the lump, develops with the same photomask of emulsion layer 14 uses with emulsion layer 16 and the alignment mark that is formed at outer yarn 4 in being formed at, do not form so the printed patterns 20 that is formed at interior yarn 6 and the alignment mark that is formed at outer yarn 4 22 can not be produced between the two under the state of relative dislocation.
And then, also expose with emulsion layer 14 by on the outer yarn 4 that constitutes by resin system net, forming alignment mark, thereby can be in the online deterioration that produces the distinctive exposure accuracy that causes by reflection or the non-permeability of light of metal system, the alignment mark 22 of hope can be formed, the raising of printing precision can be realized.In addition, use resin system net by outer yarn 4, and interior yarn 6 use metal system nets, can suppress the directly use amount of the metal system net of thin macropore of line at high price, can reduce the manufacturing cost of screen printing plate 2.
Use possess this screen printing plate 2 and with the device of the CCD camera of computer interlock, when printed patterns 20 (for example electrode of the comb shape of solar cell (Comb shape)) being printed onto on the position of regulation of cell substrate R, alignment mark 22 can be configured in top, below or two sides' the CCD camera identification up and down of screen printing plate 2, correctly adjusts the position of screen printing plate 2.Then, the slurry face 61 of scraping (face of the face side of screen printing plate 2) of yarn 6 afterwards in electrode material slurry P is supplied to, the slurry face 61 of scraping of yarn 6 in pushing with the edge of scraper plate S, the printing (プ リ Application ト) of yarn 6 in making is while face 62 is connected to cell substrate R scrapes and sweep.Thus, electrode slurry P is by the mesh of the printed patterns 20 that forms on interior yarn 6, and the printed patterns 20 that is made of electrode slurry P is printed on the position of the regulation of cell substrate R as electrode.
One embodiment of the manufacture method of screen printing plate 2 then, is described.
As shown in Figure 2, the outer yarn 4 that will be made of the resin system net of rectangle under the state that applies moderate tension (テ Application シ ヨ Application) sticks on the picture frame shape chase 10.That is, use sticking yarn machine that outer yarn 4 directly is bonded on the picture frame shape chase 10.In the present embodiment, to be whole side dimension (outer cun) be the rectangle of 300mm for 360mm, inside dimensions to picture frame shape chase 10.Bonding use moment bonding agent etc.As outer yarn 4, use polyester net (#230-45 μ m line footpath).
Then, as shown in Figure 3, establish (Zhang Let opening) the printing surface 42 of outer yarn 4 on, engage the interior yarn 6 that (joint) side dimension constitutes less than the metal system net by rectangle of the side dimension of outer yarn 4.That is, interior yarn 6 is bonded on the position corresponding with the middle body of outer yarn 4 by bonding agent.In the present embodiment, bonding agent 12 preferably possesses the bonding agent of solvent resistance, resistance to water, wearability, for example adopts the bonding agent of epoxy system, synthetic rubber system etc.As interior yarn 6, use the stainless steel net (#360-16 μ m line footpath) of the high price of the thin and macropore in line footpath.The shape of interior yarn 6 is that 1 limit is the square of 200mm, and the width W of bonding agent 12 is about 15mm.At this moment, for fear of producing big step difference (section is poor) between the peripheral end of yarn 4 and interior yarn 6 outside, peripheral end by yarn outside making 6 moves back following joint of state of (retreat in the present embodiment, size and be about 5mm) after a while and forms step-like step difference (with reference to figure 5) than the edge portion of bonding agent 12.Thus, with the state that applies appropriate tension force interior yarn 6 is engaged in an outer yarn 4 of establishing.And interior yarn 6 is bonded on the outer yarn 4 with bias mounting method (machine direction that makes metal system net tilts angle of difference tolerance certain with respect to the direction of picture frame shape chase 10 and the method for attaching pasted).
Then, as shown in Figure 4, part in the outer yarn 4, that repeat with interior yarn 6 (but in not comprising the bonding portion of yarn 6 and outer yarn 4) 4b cutting-out is removed with cutting knife etc.As a result, form to have and be provided with on one side to the outer yarn 4 of the rectangular-shaped peristome 4c of 180mm in the inboard and the silk screen body 8 of the composite construction of the interior yarn 6 of the peristome 4c of yarn 4 outside being disposed at.
Then, as shown in Figure 5, on the interior yarn 6 of silk screen body 8, be formed with the printed patterns emulsion layer 16 that constitutes by photoresist.That is, the photosensitive emulsion of packing in hopper (バ ケ Star ト) is coated on photosensitive emulsion on the interior yarn 6.Coating process does not limit.In the present embodiment, photosensitive emulsion is coated with twice scraping on the slurry face 61 of interior yarn 6, coating is three times on printing surface 62, drying and forming-film in 40 ℃ baking oven.Afterwards, carry out repeatedly repeatedly on printing surface 62 coating three times, the thickness of printed patterns with emulsion layer 16 is adjusted in the operation of drying and forming-film in 40 ℃ baking oven, in the printed patterns of the hope thickness that the printshop is needed is formed at emulsion layer 16 on the printing surface 62 of yarn 6.For example, by forming the thick printed patterns of 30 μ m with emulsion layer 16 on the thick interior yarn 6 of 35 μ m, whole thickness reaches 65 μ m.In the present embodiment; as photosensitive emulsion, use and to contain part alkalization polyvinyl alcohol (the け んization Port リ PVC ニ Le ア Le コ one Le) aqueous solution, acrylic ester copolymer emulsion that make vinyl acetate (jealous woman acid PVC ニ Le) or polyvinyl alcohol (Port リ PVC ニ Le ア Le コ one Le) forms protecting colloid, have and dissolved the basic reactive monomer (モ ノ マ one) of acryloyl (ア Network リ ロ イ Le) that photopolymerization begins agent, the emulsion of diazonium (ジ ア ゾ) resin.
Then, on the outer yarn 4 of silk screen body 8, form the alignment mark emulsion layer 14 that constitutes by photoresist.That is, in hopper, pack into printed patterns with the same photosensitive emulsion of emulsion layer 16, photosensitive emulsion is coated on the outer yarn 4.Coating process does not limit.In the present embodiment, with photosensitive emulsion outside scraping on the slurry face 41 of yarn 4 be coated with twice, on printing surface 42 coating three times, drying and forming-film in 40 ℃ baking oven.Afterwards, carry out coating on printing surface 42 three times repeatedly repeatedly, the thickness of alignment mark with emulsion layer 14 is adjusted in the operation of drying and forming-film in 40 ℃ baking oven, and the alignment mark that forms the thickness of wishing outside on the yarn 4 is with emulsion layer 14.Alignment mark is with emulsion layer 14 and be not used in printing, therefore is the thickness about 5 μ m.Therefore, Zheng Ti thickness is that the thickness of yarn 4 outside adds that alignment mark is with the thickness after the 5 μ m of emulsion layer 14.
Then, on the printing surface (being formed with printed patterns is used emulsion layer 14 with emulsion layer 16 and alignment mark face) of silk screen body 8, for example make the electrode pattern of solar cell be close to (connecting airtight) with photomask F vacuum.As shown in Figure 6, this photomask F goes up except the printed patterns portion 51 corresponding with the electrode pattern of the comb shape of the solar cell that is disposed at central portion, also is decorated with four alignment key pattern portions 52.Because the step difference of the peripheral end of outer yarn 4 and interior yarn 6 is step-like, so the distortion of the photomask F of the bonding part of yarn 4 and interior yarn 6 is also little outside.In Fig. 5, thickness for each component parts 4,6,12,14,16 of emphasizing to put down in writing silk screen body 8, and the photomask F of step difference place that has emphasized to put down in writing the bound fraction of yarn 4 and interior yarn 6 outside is extremely crooked, but in fact this photomask F crooked and get the brush-off (Recognize め Ru).Afterwards, for example the exposure machine of using the system SERIA of East Sea Itochu (3kW metal halid lamp) makes printed patterns harden simultaneously with emulsion layer 14 with emulsion layer 16 and alignment mark across photomask F irradiation ultraviolet radiation.
Then, (the system SERIA of East Sea Itochu) carries out water development with developing machine, removes printed patterns is used emulsion layer 14 with emulsion layer 16 and alignment mark unexposed portion separately.When carrying out water development, screen printing plate 2 was flooded three minutes in 25 ℃ water, make most of stripping of unexposed portion, and then pass through 6kg/cm
2The water pistol of hydraulic pressure spray 25 ℃ water, remove remaining unexposed portion fully.Afterwards, dry in 40 ℃ baking oven.Like this, as shown in Figure 7, can obtain on one side printed patterns at interior yarn 6 form on emulsion layer 16 be the roughly foursquare printed patterns (electrode pattern of the comb shape of solar cell) 20 of 125mm and outside the alignment mark of yarn 4 with the screen printing plate 2 of the composite construction of the alignment mark 22 of the circle of four diameter 1mm of formation on the emulsion layer 14.Alignment mark 22 is with respect to the inside dimensions 300mm of picture frame shape chase 10, and is cubic in up and down with the arranged spaced of 240mm.
And then, for the alignment mark 22 that makes the CCD camera to recognize looking property reliable, with coloring liquid near the alignment mark that is formed with alignment mark 22 is carried out paintedly with the rectangle part 24 of emulsion layer 14, make the contrast distinctness of alignment mark 22.Afterwards, shown in Fig. 1 (B), will be pasted on the alignment mark of printing surface of screen printing plate 2 with the tension force support 30 of formations such as (テ one プ) with the outer peripheral portion of emulsion layer 14 by silver.Like this, can make screen printing plate 2 well by production.
In addition, the present invention is not limited to described embodiment, can carry out various distortion in its purport scope.The shape of alignment mark 22 also can be different shapes such as square or polygon except circle.In addition, use four alignment marks 22 usually, but also can on the diagonal of screen printing plate 2, dispose two.
Claims (2)
1. a screen printing plate is characterized in that,
Possess:
Outer yarn, it is provided with peristome, and is made of resin system net;
Interior yarn, it is disposed at the peristome of described outer yarn, and is made of metal system net;
The printed patterns emulsion layer, it is made of photoresist, and is arranged at described interior yarn, and is formed with printed patterns; And
The alignment mark emulsion layer, it is made of photoresist, and is arranged at described outer yarn, and is formed with alignment mark,
Described printed patterns and described alignment mark by across photomask to described printed patterns with emulsion layer and described alignment mark with emulsion layer expose in the lump, developing forms.
2. the manufacture method of a screen printing plate is characterized in that,
Possess:
Formation has the outer yarn that is made of resin system net that is provided with peristome and is disposed at the operation of silk screen body of composite construction of the interior yarn that is made of metal system net of the peristome of described outer yarn;
On the interior yarn of described silk screen body, form the printed patterns emulsion layer that constitutes by photoresist, and on the outer yarn of described silk screen body, form the operation that the alignment mark that is made of photoresist is used emulsion layer; And
Across photomask described printed patterns is exposed simultaneously, develops with emulsion layer with emulsion layer and described alignment mark, in described, form printed patterns on the yarn and the operation of formation alignment mark on the yarn described outside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-087723 | 2010-04-06 | ||
| JP2010087723A JP5365571B2 (en) | 2010-04-06 | 2010-04-06 | Screen printing plate and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102211446A true CN102211446A (en) | 2011-10-12 |
| CN102211446B CN102211446B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100655349A Active CN102211446B (en) | 2010-04-06 | 2011-03-11 | Screen printing plate and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5365571B2 (en) |
| CN (1) | CN102211446B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102211446B (en) | 2013-11-20 |
| JP2011218602A (en) | 2011-11-04 |
| JP5365571B2 (en) | 2013-12-11 |
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