JPH02206552A - Manufacture of squeegee blade for screen printing - Google Patents
Manufacture of squeegee blade for screen printingInfo
- Publication number
- JPH02206552A JPH02206552A JP2832089A JP2832089A JPH02206552A JP H02206552 A JPH02206552 A JP H02206552A JP 2832089 A JP2832089 A JP 2832089A JP 2832089 A JP2832089 A JP 2832089A JP H02206552 A JPH02206552 A JP H02206552A
- Authority
- JP
- Japan
- Prior art keywords
- edge
- blade
- resin raw
- raw material
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000007650 screen-printing Methods 0.000 title claims description 7
- 239000011347 resin Substances 0.000 claims abstract description 49
- 229920005989 resin Polymers 0.000 claims abstract description 49
- 238000000465 moulding Methods 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 5
- 238000004132 cross linking Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- BWLKKFSDKDJGDZ-UHFFFAOYSA-N [isocyanato(phenyl)methyl]benzene Chemical compound C=1C=CC=CC=1C(N=C=O)C1=CC=CC=C1 BWLKKFSDKDJGDZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
発明の目的
［産業上の利用分野］
この発明はスクリーン印刷用スキージに取付けるブレー
ドの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Industrial Application Field] The present invention relates to a method for manufacturing a blade attached to a screen printing squeegee.
［従来の技術］
スキージは、その先端を版面に当である角度を保って圧
力を加えながら摺動することにより、インキを被印刷体
に転移させるものであり、そのブレードとしては諸条件
を考慮して通常ゴムが利用されている。現在、スクリー
ン印刷機用のブレードにはポリウレタンゴムが使用され
ることが多い一般に、良好な印刷を行うためのスキージ
ブレードの条件としては耐溶剤性、弾力性及び耐摩耗性
などが要求されている。例えば、スキージの働きとして
スクリーン面上におけるインキの切れが良いことが必要
であり、そのため、先端の丸くなったブレードや、イン
キの溶剤で膨潤して蛇行したブレードや、容易に腰折れ
するブレードは良くない。[Prior art] A squeegee transfers ink to a printing medium by sliding its tip against the plate surface while applying pressure while maintaining a certain angle, and its blade is designed with various conditions taken into consideration. Usually rubber is used. Currently, polyurethane rubber is often used for screen printing machine blades, but in general, squeegee blades must have solvent resistance, elasticity, and abrasion resistance in order to perform good printing. . For example, a squeegee needs to cut the ink well on the screen surface, so blades with rounded tips, meandering blades that swell with ink solvent, and blades that bend easily are not recommended. do not have.
そこで、これらの条件を考慮して改良した従来のスキー
ジブレードとしては、スキージのブレード取付部材に支
持されるホルダ部と、スクリーン上のインキを押し出す
エツジ部とからなるものがあり、ホルダ部は硬質ポリウ
レタンゴムにより、エツジ部は軟質ポリウレタンゴムに
よりそれぞれ成形されている。Therefore, there is a conventional squeegee blade that has been improved taking these conditions into consideration.It consists of a holder part that is supported by the squeegee blade mounting member and an edge part that pushes out the ink on the screen. The edges are each made of soft polyurethane rubber.
［発明が解決しようとする課題］
ところが、前記エツジ部はホルダ部に単に接着されてい
るだけであるため、スキージの摺動時エツジ部を湾曲さ
せる力や、接着面に浸透するインキの溶剤が原因となっ
て、エツジ部が剥がれ易くなる問題があった。[Problems to be Solved by the Invention] However, since the edge portion is simply bonded to the holder portion, the force that bends the edge portion when the squeegee slides, and the solvent of the ink that permeates into the adhesive surface are As a result, there was a problem in that the edge part was easily peeled off.
本発明はエツジ部の剥離のないスキージブレードの製造
方法を提供することを目的としている。An object of the present invention is to provide a method for manufacturing a squeegee blade without peeling of the edge portion.
発明の構成
［課題を解決するための手段］
本発明はこの目的を達成するため、後記する実施例の図
面に示すように、スキージ１のブレード取付部材２に支
持されるホルダ部４と、スクリーン上のインキを押し出
すエツジ部５．５ａ、５ｂとからなるスクリーン印刷用
スキージブレード３を製造するにあたって、以下に示す
ような方法を採用した。Structure of the Invention [Means for Solving the Problems] In order to achieve this object, the present invention includes a holder part 4 supported by a blade attachment member 2 of a squeegee 1, and a screen as shown in the drawings of embodiments to be described later. In manufacturing a screen printing squeegee blade 3 consisting of edge portions 5.5a and 5b for pushing out ink, the following method was adopted.
すなわち、第１〜５図に示すブレード３はエツジ部５を
ホルダ部４の一側縁に沿うように設けたものであって、
まず型のブレード成形用キャビティに樹脂原料を注入し
て前記ホルダ部４又はエツジ部５を成形し、次にこの樹
脂原料が未架橋の状態で同キャビティに異種の樹脂原料
を注入して前記ホルダ部４又はエツジ部５の一側縁に沿
うようにエツジ部５又はホルダ部４を成形し、その模そ
れらの樹脂原料を架橋させる。That is, the blade 3 shown in FIGS. 1 to 5 has an edge portion 5 along one side edge of the holder portion 4,
First, a resin raw material is injected into the blade molding cavity of the mold to mold the holder part 4 or the edge part 5, and then, with this resin raw material in an uncrosslinked state, a different type of resin raw material is injected into the same cavity to form the holder part. The edge portion 5 or the holder portion 4 is formed along one side edge of the portion 4 or the edge portion 5, and the resin raw materials thereof are crosslinked.
又、第６図に示すブレード３はエツジ部５ａ。Further, the blade 3 shown in FIG. 6 has an edge portion 5a.
５ｂをホルダ部４の両側縁に沿うように設けたものであ
って、まず型のブレード成形用キャビティに樹脂原料を
注入して前記一方のエツジ部５ａを成形し、次にこのエ
ツジ部５ａの成形用樹脂原料が未架橋の状態で同キャビ
ティに異種の樹脂原料を注入して前記一方のエツジ部５
ａの一側縁に沿うように前記ホルダ部４を成形し、次に
このホルダ部４の成形用樹脂原料が未架橋の状態で同キ
ャビティに対し前記エツジ部５ａの成形用樹脂原料と同
種又は異種でかつ前記ホルダ部４の成形用樹脂原料と異
種の樹脂原料を注入して前記ホルダ部４の一側縁に沿う
ように前記他方のエツジ部５ｂを成形し、その後それら
の樹脂原料を架橋させる。5b are provided along both side edges of the holder part 4. First, resin raw material is injected into the blade molding cavity of the mold to mold the one edge part 5a, and then the edge part 5a is molded. While the molding resin raw material is in an uncrosslinked state, a different type of resin raw material is injected into the same cavity to form the one edge portion 5.
The holder part 4 is molded along one side edge of the edge part 5a, and then the molding resin raw material for the holder part 4 is molded into the same cavity in an uncrosslinked state, and the molding resin raw material for the edge part 5a is of the same type or The other edge portion 5b is molded along one side edge of the holder portion 4 by injecting a resin material different from the resin material for molding the holder portion 4, and then cross-linking those resin materials. let
［作用］
いずれの製造方法においても、各樹脂原料か架橋前に半
溶融状態で接合されるので、ホルダ部４とエツジ部５．
５ａ 、５ｂとが強固に融着される。[Function] In either manufacturing method, each resin raw material is joined in a semi-molten state before crosslinking, so that the holder portion 4 and the edge portion 5.
5a and 5b are firmly fused together.
［実施例］
以下、本発明の第一実施例を第１〜３図に従って説明す
る。[Example] A first example of the present invention will be described below with reference to FIGS. 1 to 3.
スキージ１はブレード取付部材２の下端縁にブレード３
を嵌着したものであって、このブレード３は同取付部材
２に支持される幅広のホルダ部４と、スクリーン上のイ
ンキを押し出す幅狭のエツジ部５とからなり、ホルダ部
４は硬質ポリウレタンゴムにより、エツジ部５は軟質ポ
リウレタンゴムにより成形されている。The squeegee 1 attaches the blade 3 to the lower edge of the blade attachment member 2.
This blade 3 consists of a wide holder part 4 supported by the mounting member 2 and a narrow edge part 5 that pushes out the ink on the screen.The holder part 4 is made of hard polyurethane. The edge portion 5 is made of rubber and is made of soft polyurethane rubber.
このブレード３の製造は次のようにして行う。This blade 3 is manufactured as follows.
まず、ポリオール（ポリエステル系）１００部に対して
、トリレンジイソシアネート（ＴＤＩ）又はジフェニル
メタンイソシアネート（ＭＤ Ｉ ＞を約３０部、それ
に架橋剤を６〜７部混合した樹脂原料を用意する。この
配合率は硬度によって異なる。なお、ＴＤＩとＭＤＩと
では架橋剤が異なる。First, a resin raw material is prepared by mixing 100 parts of polyol (polyester type) with about 30 parts of tolylene diisocyanate (TDI) or diphenylmethane isocyanate (MD I >) and 6 to 7 parts of a crosslinking agent.This blending ratio differs depending on the hardness. Note that TDI and MDI use different crosslinking agents.
この樹脂原料を金型のブレード成形用キャビティに注入
してエツジ部５を成形する。This resin raw material is injected into the blade molding cavity of the mold to mold the edge portion 5.
次に、このエツジ８Ｉ１５の成形用樹脂原料が未架橋の
状態である程度固形化した後、前記キャビティにエツジ
部５の成形用樹脂原料とは異種の樹脂原料（前記エツジ
部５の成形用樹脂原料と組成は同一であるが、それより
も硬度の大きいもの）を注入してエツジ部５の一側縁に
沿うようにホルダ部４を成形する。Next, after the resin raw material for molding of the edge 8I15 has solidified to some extent in an uncrosslinked state, a resin raw material different from the resin raw material for molding of the edge part 5 (the resin raw material for molding of the edge part 5) is placed in the cavity. The holder part 4 is molded along one side edge of the edge part 5 by injecting a material having the same composition as that but having a higher hardness than that of the holder part 4.
このとき、エツジ部５の成形用樹脂原料とホルダ部４の
成形用樹脂原料とがそれらの境目で互いに融着される。At this time, the molding resin raw material of the edge portion 5 and the molding resin raw material of the holder portion 4 are fused to each other at the boundary thereof.
ホルダ部４の成形用樹脂原料が未架橋の状態で固形化し
た後、金型を加熱炉に入れ、１００〜１２０℃で３０分
〜２時間、金型内の樹脂原料を加熱架橋させる。なお、
この温度及び時間は樹脂原料の硬度等によって異なる。After the resin raw material for molding of the holder part 4 is solidified in an uncrosslinked state, the mold is placed in a heating furnace, and the resin raw material in the mold is heated and crosslinked at 100 to 120° C. for 30 minutes to 2 hours. In addition,
This temperature and time vary depending on the hardness of the resin raw material, etc.
その後、離型してブレード３を取出す。Thereafter, the mold is released and the blade 3 is taken out.
この製造方法ではエツジ部５を成形した後にホルダ部４
を成形しているが、逆にホルダ部４を成形した後にエツ
ジ部５を成形してもよい。In this manufacturing method, after forming the edge portion 5, the holder portion 4 is
However, conversely, the edge portion 5 may be molded after the holder portion 4 is molded.
このようにして製造されたブレード３においては、ホル
ダ部４の成形用樹脂原料とエツジ部５の成形用樹脂原料
とが架橋前に半溶融状態で融着されるので、ホルダ部４
とエツジ部５との接合が強固になり、スキージの眉動時
エツジ部５を湾曲させる力や、インキの溶剤が原因とな
ってエツジ部５がホルダ部４から剥離することはなくな
る。In the blade 3 manufactured in this way, the molding resin raw material of the holder part 4 and the molding resin raw material of the edge part 5 are fused in a semi-molten state before crosslinking, so the holder part 4
The bond between the edge part 5 and the edge part 5 becomes strong, and the edge part 5 will not be peeled off from the holder part 4 due to the force of bending the edge part 5 when the squeegee moves the eyebrows or the solvent in the ink.
なお、ブレード３のエツジ部５の形状としては第３図に
示すもののほか、第４図や第５図に示すようにしてもよ
い。In addition to the shape shown in FIG. 3, the shape of the edge portion 5 of the blade 3 may be as shown in FIG. 4 or FIG. 5.
第６図に示す第二実施例のブレード３は硬質ポリウレタ
ンゴム製ホルダ部４の両側縁に沿うように軟質ポリウレ
タンゴム製エツジ部５ａ、５ｂを設けたものであり、そ
の製造にあたっては、一方のエツジ部５ａ、ホルダ部４
、他方のエツジ部５ｂの順に、それらを前記第一実施例
の場合と同様にして成形する。エツジ部５ａ、５゛ｂの
成形用樹脂原料とホルダ部４の成形用樹脂原料とは第一
実施例の場合と同様に異種のもの（組成は同一であるが
、硬度が相違するもの）であるが、一方のエツジ部５ａ
の成形用樹脂原料と他方のエツジ部５ｂの成形用樹脂原
料とは同種のもの（組成も硬度も同一のもの）でも異種
のものでもよい。なお、このブレード３では両エツジ部
５ａ 、５ｂのうちいずれかのものを利用する。The blade 3 of the second embodiment shown in FIG. 6 has soft polyurethane rubber edge parts 5a and 5b along both side edges of a hard polyurethane rubber holder part 4. Edge part 5a, holder part 4
, and the other edge portion 5b in the same manner as in the first embodiment. The molding resin raw materials for the edge portions 5a and 5'b and the molding resin raw materials for the holder portion 4 are of different types (same composition but different hardness) as in the first embodiment. However, one edge part 5a
The molding resin raw material of 1 and the molding resin raw material of the other edge portion 5b may be of the same type (same composition and hardness) or different types. Note that this blade 3 utilizes one of the two edge portions 5a and 5b.
この第二実施例の場合も、舶記第−実施例の場合と同様
にホルダ部４とエツジ部５との接合が強固になる。In the case of this second embodiment as well, the connection between the holder portion 4 and the edge portion 5 is strong as in the case of the first embodiment.
発明の効果
本発明によれば、ブレード３が容易に腰折れするのを防
止できるばかりではなく、ホルダ部４とエツジ部５．５
ａ、５ｂとの接合が強固になり、スキージの摺動時エツ
ジ部５．５ａ、５ｂを湾曲させる力や、インキの溶剤が
原因となってエツジ部５，５ａ 、５ｂがホルダ部４が
ら剥離することはなくなる。Effects of the Invention According to the present invention, not only can the blade 3 be prevented from easily bending, but also the holder part 4 and the edge part 5.5 can be prevented from easily bending.
a, 5b becomes strong, and the edge parts 5, 5a, 5b peel off from the holder part 4 due to the force that bends the edge parts 5.5a, 5b when the squeegee slides, or the solvent in the ink. There will be nothing left to do.
第１図は第一実施例のブレードを有するスキージの正面
図、第２図は同スキージのブレードのみを示す正面図、
第３図は同じ（側面図、第４図及び第５図は第一実施例
のブレードにおいてエツジ部の形状を変更した別個を示
す側面図、第６図は第二実施例のブレードを示す正面図
である。
１・・・スキージ、２・・・ブレード取付部材、３川ブ
レード、４・・・ホルダ部、５．５ａ、５ｂ・・・エツ
ジ部。FIG. 1 is a front view of a squeegee having the blade of the first embodiment, FIG. 2 is a front view showing only the blade of the same squeegee,
Figure 3 is the same (side view; Figures 4 and 5 are side views showing the blade of the first embodiment with a different edge shape; Figure 6 is a front view of the blade of the second embodiment). It is a figure.1... Squeegee, 2... Blade attachment member, Mikawa blade, 4... Holder part, 5.5a, 5b... Edge part.
Claims (1)
れるホルダ部（４）と、スクリーン上のインキを押し出
すエッジ部（５）とからなり、このエッジ部（５）をホ
ルダ部（４）の一側縁に沿うように設けたスクリーン印
刷用スキージブレードを製造する方法において、 まず、型のブレード成形用キャビティに樹脂原料を注入
して前記ホルダ部（４）又はエッジ部（５）を成形し、 次に、この樹脂原料が未架橋の状態で同キャビティに異
種の樹脂原料を注入して前記ホルダ部（４）又はエッジ
部（５）の一側縁に沿うようにエッジ部（５）又はホル
ダ部（４）を成形し、その後、それらの樹脂原料を架橋
させることを特徴とするスクリーン印刷用スキージブレ
ードの製造方法。 ２、スキージ（１）のブレード取付部材（２）に支持さ
れるホルダ部（４）と、スクリーン上のインキを押し出
すエッジ部（５ａ、５ｂ）とからなり、このエッジ部（
５ａ、５ｂ）をホルダ部（４）の両側縁に沿うように設
けたスクリーン印刷用スキージブレードを製造する方法
において、まず、型のブレード成形用キャビティに樹脂
原料を注入して前記一方のエッジ部（５ａ）を成形し、 次に、このエッジ部（５ａ）の成形用樹脂原料が未架橋
の状態で同キャビティに異種の樹脂原料を注入して前記
一方のエッジ部（５ａ）の一側縁に沿うように前記ホル
ダ部（４）を成形し、次に、このホルダ部（４）の成形
用樹脂原料が未架橋の状態で同キャビティに対し前記エ
ッジ部（５ａ）の成形用樹脂原料と同種又は異種でかつ
前記ホルダ（４）の成形用樹脂原料と異種の樹脂原料を
注入して前記ホルダ部（４）の一側縁に沿うように前記
他方のエッジ部（５ｂ）を成形し、その後、それらの樹
脂原料を架橋させることを特徴とするスクリーン印刷用
スキージブレードの製造方法。[Claims] 1. Consists of a holder part (4) supported by the blade attachment member (2) of the squeegee (1), and an edge part (5) that pushes out ink on the screen. ) along one side edge of the holder part (4), first, resin raw material is injected into the blade molding cavity of the mold and the holder part (4) or The edge part (5) is molded, and then, with this resin raw material in an uncrosslinked state, a different type of resin raw material is injected into the same cavity to fit along one side edge of the holder part (4) or the edge part (5). A method for manufacturing a squeegee blade for screen printing, characterized in that the edge portion (5) or the holder portion (4) is formed as shown in FIG. 2. It consists of a holder part (4) supported by the blade attachment member (2) of the squeegee (1), and edge parts (5a, 5b) that push out the ink on the screen.
In the method for manufacturing a screen printing squeegee blade in which the squeegee blades 5a and 5b) are provided along both sides of the holder part (4), first, a resin raw material is injected into the blade molding cavity of the mold, and the one edge part (5a) is molded, and then, with the resin raw material for molding this edge part (5a) in an uncrosslinked state, a different type of resin raw material is injected into the same cavity to form one side edge of the one edge part (5a). Next, the holder part (4) is molded along the molding resin raw material of the edge part (5a) with respect to the same cavity in an uncrosslinked state. Molding the other edge part (5b) along one side edge of the holder part (4) by injecting a resin raw material of the same type or different type and different from the molding resin raw material of the holder (4); A method for producing a squeegee blade for screen printing, which comprises then crosslinking those resin raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2832089A JPH02206552A (en) | 1989-02-06 | 1989-02-06 | Manufacture of squeegee blade for screen printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2832089A JPH02206552A (en) | 1989-02-06 | 1989-02-06 | Manufacture of squeegee blade for screen printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02206552A true JPH02206552A (en) | 1990-08-16 |
Family
ID=12245322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2832089A Pending JPH02206552A (en) | 1989-02-06 | 1989-02-06 | Manufacture of squeegee blade for screen printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02206552A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516050A1 (en) * | 1995-04-07 | 1996-10-10 | Rk Siebdrucktechnik Gmbh | Squeegee especially for screen printing |
| WO2007113492A2 (en) * | 2006-04-03 | 2007-10-11 | Litho Devices Limited | Wiper blade for printer roller |
| JP2014151580A (en) * | 2013-02-12 | 2014-08-25 | Denso Corp | Screen printer, and manufacturing method of squeegee used for the same |
| JP2015229306A (en) * | 2014-06-06 | 2015-12-21 | 株式会社ボンマーク | Squeegee for printing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6344042A (en) * | 1986-08-12 | 1988-02-25 | 京阪コンクリート工業株式会社 | Anchor device in foam block construction |
| JPS6424750A (en) * | 1987-07-06 | 1989-01-26 | Horuderetsugaa Yurugu | Device for fixing squeegee |
-
1989
- 1989-02-06 JP JP2832089A patent/JPH02206552A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6344042A (en) * | 1986-08-12 | 1988-02-25 | 京阪コンクリート工業株式会社 | Anchor device in foam block construction |
| JPS6424750A (en) * | 1987-07-06 | 1989-01-26 | Horuderetsugaa Yurugu | Device for fixing squeegee |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516050A1 (en) * | 1995-04-07 | 1996-10-10 | Rk Siebdrucktechnik Gmbh | Squeegee especially for screen printing |
| WO2007113492A2 (en) * | 2006-04-03 | 2007-10-11 | Litho Devices Limited | Wiper blade for printer roller |
| WO2007113492A3 (en) * | 2006-04-03 | 2007-11-29 | Litho Devices Ltd | Wiper blade for printer roller |
| JP2014151580A (en) * | 2013-02-12 | 2014-08-25 | Denso Corp | Screen printer, and manufacturing method of squeegee used for the same |
| JP2015229306A (en) * | 2014-06-06 | 2015-12-21 | 株式会社ボンマーク | Squeegee for printing |
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