JPS6255997B2 - - Google Patents
Info
- Publication number
- JPS6255997B2 JPS6255997B2 JP57096487A JP9648782A JPS6255997B2 JP S6255997 B2 JPS6255997 B2 JP S6255997B2 JP 57096487 A JP57096487 A JP 57096487A JP 9648782 A JP9648782 A JP 9648782A JP S6255997 B2 JPS6255997 B2 JP S6255997B2
- Authority
- JP
- Japan
- Prior art keywords
- plating layer
- chromate
- plate
- support
- aluminum
- 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.)
- Expired
Links
- 238000007747 plating Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005275 alloying Methods 0.000 claims 1
- 238000005246 galvanizing Methods 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000007743 anodising Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007739 conversion coating Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010407 anodic oxide Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/04—Printing plates or foils; Materials therefor metallic
- B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
Description
【発明の詳細な説明】
本発明は強度が強く、しかも安価な平版印刷用
原板の支持体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support for a lithographic printing original plate that has high strength and is inexpensive.
従来一般に平版印刷用原板の支持体としてはア
ルミニウム板が使用されているが、近年アルミニ
ウム板は著しく高価になつてきたことから繰返し
使用が試みられている。しかしアルミニウム板は
軟く、取扱いの際変形しやすいので、繰返し使用
するには多くの作業的困難を伴うものであつた。 Conventionally, aluminum plates have been generally used as supports for lithographic printing original plates, but in recent years aluminum plates have become extremely expensive, so attempts have been made to use them repeatedly. However, since aluminum plates are soft and easily deform when handled, repeated use is accompanied by many operational difficulties.
またアルミニウム板の場合感光膜などの画像受
理層の密着性を高めたり、親水性、保水性および
耐食性などを高めたりするのに砂目立てや陽極酸
化処理を必要とするため、製版工程が複雑にな
り、コストが高いという欠点があつた。 Additionally, in the case of aluminum plates, graining and anodic oxidation treatments are required to improve the adhesion of image-receiving layers such as photosensitive films, as well as to improve hydrophilicity, water retention, and corrosion resistance, making the plate-making process complicated. However, the disadvantage was that it was expensive.
本発明は鋼板に亜鉛または亜鉛を主成分とする
合金をめつきした後熱拡散によりめつき層を鉄−
亜鉛合金化させた合金化亜鉛めつき鋼板のめつき
層表面が砂目立て後陽極酸化したアルミニウム板
表面と近似した特性を有するという知見に基きな
されたもので、この合金化亜鉛めつき鋼板を用い
ることにより前記欠点を解消したものである。 In the present invention, after plating zinc or a zinc-based alloy on a steel plate, the plating layer is formed by heat diffusion.
This was based on the knowledge that the surface of the plating layer of the zinc-alloyed galvanized steel sheet has properties similar to the surface of an aluminum sheet that has been grained and then anodized. This eliminates the aforementioned drawbacks.
鋼板に溶融めつきまたは電気めつきなどにより
亜鉛またはその合金をめつきした後加熱処理する
とめつき層と鋼素地間で熱拡散が起り、めつき層
は表面まで鉄−亜鉛合金化される。この合金化め
つき層は緻密で適度の大きさの表面粗度を有し、
かつ硬度は高く、しかも不活性であるにもかかわ
らず、鉄分を含有していることからポリビニルア
ルコールなどの合成樹脂との親和性はよい。従つ
て耐食性を除いては陽極処理後のアルミニウム板
と同等以上の性能を有しており、砂目立てや陽極
処理を省略できる。また強度的には鋼板であるの
で、アルミニウム板より変形しにくい。しかし合
金化めつき層には裸耐食性が陽極酸化皮膜より劣
るという難点があるので、本発明においてはこれ
をクロメート系化成皮膜に向上させる。 When a steel plate is plated with zinc or its alloy by hot-dip plating or electroplating and then heat-treated, thermal diffusion occurs between the plated layer and the steel base, and the plated layer becomes an iron-zinc alloy up to the surface. This alloyed plating layer is dense and has an appropriate surface roughness,
Although it has high hardness and is inert, it has good affinity with synthetic resins such as polyvinyl alcohol because it contains iron. Therefore, except for corrosion resistance, it has performance equivalent to or better than anodized aluminum plate, and graining and anodizing can be omitted. In terms of strength, since it is a steel plate, it is less likely to deform than an aluminum plate. However, the alloyed plating layer has a drawback in that its bare corrosion resistance is inferior to that of the anodic oxide coating, so in the present invention, this is improved to a chromate-based chemical conversion coating.
以下本発明を詳細に説明する。 The present invention will be explained in detail below.
第１図は本発明支持体の一実施例断面を示すも
ので、１は鋼板で、２は鉄−亜鉛系合金のめつき
層である。また３はクロメート系化成皮膜であ
る。 FIG. 1 shows a cross section of an embodiment of the support of the present invention, where 1 is a steel plate and 2 is a plating layer of iron-zinc alloy. Further, 3 is a chromate-based chemical conversion film.
鋼板１の厚さは印刷機版胴への取付、強度など
の関係から0.1〜0.3mm、好ましくは0.15〜0.20mm
にするのが適当である。めつき層２は熱拡散によ
り合金化させたもので、その表面粗度は第２図ａ
に示すように緻密である。しかし一部には突出し
た部分や先端が鋭利な部分があるので、ロール等
で軽圧延し、第２図ｂに示すようにそれらを除去
し、表面粗度を４〜７μにしたものが好ましい。
また非常に緻密な表面を必要とする場合には砂目
立てを施してもよい。 The thickness of the steel plate 1 is 0.1 to 0.3 mm, preferably 0.15 to 0.20 mm, due to installation on the printing press cylinder, strength, etc.
It is appropriate to do so. The plating layer 2 is alloyed by thermal diffusion, and its surface roughness is as shown in Figure 2a.
It is detailed as shown in . However, some parts have protruding parts or sharp edges, so it is preferable to lightly roll them with rolls, etc., to remove them as shown in Figure 2b, and to make the surface roughness 4 to 7μ. .
Also, if a very dense surface is required, graining may be applied.
めつき層２の鉄含有量は５〜20％程度のものが
加工性がよい。また組成的には他の添加元素を含
んでいても支障がない。例えばめつきが溶融めつ
き法である場合0.05〜0.50％程度のアルミニウム
を含んでおり、また電気めつき法である場合には
マグネシウム、コバルト、ニツケル、チタンなど
の耐食性改善元素を数％含んでいる場合がある
が、これらの元素を含んでいても支持体としては
問題がない。 The plating layer 2 with an iron content of about 5 to 20% has good workability. Further, in terms of composition, there is no problem even if other additive elements are included. For example, when plating is done by hot-dip plating, it contains about 0.05 to 0.50% aluminum, and when it is electroplated, it contains several percent of corrosion resistance improving elements such as magnesium, cobalt, nickel, and titanium. However, even if these elements are contained, there is no problem as a support.
めつき層２の厚さは製版に使用する片面側が５
μ以上、好ましくは10〜15μ以上になるようにす
る。 The thickness of plating layer 2 is 5 mm on one side used for plate making.
The thickness should be at least μ, preferably at least 10 to 15 μ.
クロメート系化成皮膜３はめつき層２の耐食性
を向上させるためのもので、通常塩水噴霧試験
（JISZ2371）において48時間以上の白錆や赤錆が
発生しないものが好ましい。クロメート系皮膜は
合成樹脂との密着性はよく、かつ吸湿性を有して
いるので、水との親和性がよく、保水力に優れて
いる。従つて製版後密着性を必要とする画線部、
保水性を必要とする非画線部にとつて好都合であ
る。 The chromate-based chemical conversion coating 3 is intended to improve the corrosion resistance of the plating layer 2, and is preferably one that does not cause white rust or red rust for 48 hours or more in a normal salt spray test (JISZ2371). Chromate-based films have good adhesion to synthetic resins and are hygroscopic, so they have good affinity with water and excellent water retention. Therefore, the image area that requires adhesion after plate making,
This is convenient for non-image areas that require water retention.
本発明の支持体による製版は砂目立てや陽極酸
化処理工程を省略する点を除いて従来と同様に行
うことができる。 Plate making using the support of the present invention can be carried out in the same manner as conventional methods, except that the graining and anodizing treatment steps are omitted.
以上の如く、本発明の支持体は合金化亜鉛めつ
き鋼板であるので強度は強く、クロメート系化成
皮膜を形成しためつき層表面は砂目立て後陽極酸
化したアルミニウム板と同等以上の性能を有して
いる。従つて価格はアルミニウム板より安いう
え、取扱上変形することも少いので何回も繰返し
使用でき、著しくコスト低減になる。また製版の
際砂目立て、陽極酸化処理を省略できるので、こ
の面からもコスト低減となる。 As described above, since the support of the present invention is an alloyed galvanized steel sheet, its strength is strong, and the surface of the tamping layer on which a chromate-based chemical conversion film is formed has performance equivalent to or better than that of an aluminum sheet that is grained and then anodized. are doing. Therefore, it is cheaper than an aluminum plate, and since it is less likely to deform during handling, it can be used many times, resulting in a significant cost reduction. Furthermore, since graining and anodizing treatment can be omitted during plate making, costs can be reduced from this perspective as well.
第１図は本発明に係る支持体の一実施例断面
図、第２図は本発明に係る支持体の表面粗度を示
すもので、ａはロールで軽圧延する前の状態、ｂ
はロールで軽圧延した後の状態を示している。
１……鋼板、２……めつき層、３……クロメー
ト系化成皮膜。
Fig. 1 is a sectional view of an embodiment of the support according to the present invention, and Fig. 2 shows the surface roughness of the support according to the present invention, where a is the state before light rolling with rolls, and b
shows the state after light rolling with rolls. 1... Steel plate, 2... Plating layer, 3... Chromate-based chemical conversion film.
Claims (1)
を熱拡散により合金化させた鉄−亜鉛系合金のめ
つき層が形成され、さらに該めつき層の上にクロ
メート系化成皮膜が形成されていることを特徴と
する平版印刷用原板の支持体。1 After galvanizing the steel sheet surface, a plating layer of iron-zinc alloy is formed by alloying the plating layer by thermal diffusion, and a chromate-based chemical conversion film is further formed on the plating layer. A support for a lithographic printing original plate, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9648782A JPS58212995A (en) | 1982-06-05 | 1982-06-05 | Supporting body for original form for lithographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9648782A JPS58212995A (en) | 1982-06-05 | 1982-06-05 | Supporting body for original form for lithographic printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58212995A JPS58212995A (en) | 1983-12-10 |
| JPS6255997B2 true JPS6255997B2 (en) | 1987-11-24 |
Family
ID=14166421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9648782A Granted JPS58212995A (en) | 1982-06-05 | 1982-06-05 | Supporting body for original form for lithographic printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58212995A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56130395A (en) * | 1980-03-17 | 1981-10-13 | Nippon Paint Co Ltd | Planographic printing plate |
-
1982
- 1982-06-05 JP JP9648782A patent/JPS58212995A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56130395A (en) * | 1980-03-17 | 1981-10-13 | Nippon Paint Co Ltd | Planographic printing plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58212995A (en) | 1983-12-10 |
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