JP2005309439A5 - - Google Patents
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- Publication number
- JP2005309439A5 JP2005309439A5 JP2005121405A JP2005121405A JP2005309439A5 JP 2005309439 A5 JP2005309439 A5 JP 2005309439A5 JP 2005121405 A JP2005121405 A JP 2005121405A JP 2005121405 A JP2005121405 A JP 2005121405A JP 2005309439 A5 JP2005309439 A5 JP 2005309439A5
- Authority
- JP
- Japan
- Prior art keywords
- image
- coating
- halftone image
- less
- plate precursor
- 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.)
- Granted
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Claims (5)
−版前駆体上に２５μｍ以下の寸法を有するマイクロドットを含んでなるハーフトーン像を赤外線により露出し、そして
−版前駆体を現像剤中で処理し、それによりコーティングの非像領域を支持体から除去する
段階を含んでなる平版印刷版の作製方法であって、赤外線がＣＰ〜１．５＊ＣＰ［ここでＣＰは処理段階後に０．０５＊Ｄｕに相当する完全に露出された領域におけるコーティングの光学濃度を得るのに必要な最小エネルギー密度として定義されるヌケ点（ｃｌｅａｒｉｎｇ ｐｏｉｎｔ）であり、Ｄｕは露出されていない状態でのコーティングの光学濃度である］の範囲内のエネルギー密度を有することを特徴とする方法。 Providing a heat sensitive positive working lithographic printing plate precursor comprising a support and a coating thereon;
Exposing a halftone image comprising microdots having a dimension of 25 μm or less on the plate precursor with infrared radiation, and processing the plate precursor in a developer, thereby supporting a non-image area of the coating a lithographic printing plate manufacturing method comprising the step of removing from the infrared rays is CP~1.5 * CP [wherein CP has been fully exposed, which corresponds to 0.05 * D u after processing stage area energy density in the range of a missing point is defined as the minimum energy density required to obtain an optical density of the coating (clearing point), which is the optical density of the coating in a state in which D u is not exposed] in A method characterized by comprising:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04101647.8 | 2004-04-21 | ||
| EP20040101647 EP1588847B1 (en) | 2004-04-21 | 2004-04-21 | Method for accurate exposure of small dots on a heat-sensitive positive-working lithographic plate material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005309439A JP2005309439A (en) | 2005-11-04 |
| JP2005309439A5 true JP2005309439A5 (en) | 2008-06-05 |
| JP4731197B2 JP4731197B2 (en) | 2011-07-20 |
Family
ID=34928989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005121405A Expired - Fee Related JP4731197B2 (en) | 2004-04-21 | 2005-04-19 | Accurate exposure method for small dots in heat sensitive positive acting lithographic materials |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1588847B1 (en) |
| JP (1) | JP4731197B2 (en) |
| CN (1) | CN1689802B (en) |
| DE (1) | DE602004006378T2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2411697T3 (en) * | 2005-11-21 | 2013-07-08 | Agfa Graphics N.V. | Method of manufacturing a lithographic printing plate |
| DE602006009919D1 (en) | 2006-08-03 | 2009-12-03 | Agfa Graphics Nv | Lithographic printing plate support |
| SG174172A1 (en) * | 2009-03-04 | 2011-10-28 | Securency Int Pty Ltd | Improvements in methods for producing lens arrays |
| JP6395928B2 (en) * | 2015-04-30 | 2018-09-26 | 富士フイルム株式会社 | Flexographic printing plate |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0734147B1 (en) * | 1995-03-22 | 2000-06-14 | Agfa-Gevaert N.V. | Intensity modulated stochastic screening for preparing a lithographic printing plate |
| JP3814961B2 (en) * | 1996-08-06 | 2006-08-30 | 三菱化学株式会社 | Positive photosensitive printing plate |
| DE69714197T2 (en) * | 1996-12-11 | 2003-02-13 | Agfa Gevaert Nv | Visible control strip for imaging media |
| US6121996A (en) * | 1998-05-04 | 2000-09-19 | Creo Srl | Laser recording method |
| JP2001174981A (en) * | 1999-12-20 | 2001-06-29 | Mitsubishi Chemicals Corp | Method for producing printing plate |
| JP2002062660A (en) * | 2000-08-16 | 2002-02-28 | Fuji Photo Film Co Ltd | Lithographic printing original plate |
| JP2002296790A (en) * | 2001-03-30 | 2002-10-09 | Fuji Photo Film Co Ltd | Lithographic printing original plate |
| JP2003098684A (en) * | 2001-09-21 | 2003-04-04 | Fuji Photo Film Co Ltd | Method for evaluating image and method for controlling quality of planographic printing plate |
| EP1295717B1 (en) * | 2001-09-24 | 2007-07-25 | Agfa Graphics N.V. | Heat-sensitive positive-working lithographic printing plate precursor |
| JP2003228164A (en) * | 2002-02-06 | 2003-08-15 | Fuji Photo Film Co Ltd | Original plate for planographic printing plate |
| JP2004029680A (en) * | 2002-06-28 | 2004-01-29 | Fuji Photo Film Co Ltd | Lithographic printing original plate |
| EP1380417B1 (en) * | 2002-07-03 | 2006-08-23 | Agfa-Gevaert | Positive-working lithographic printing plate precursor |
| EP1401190B1 (en) * | 2002-09-17 | 2013-05-29 | Agfa Graphics N.V. | Sub dot phase modulation for computer to plate inkjet system |
| WO2004081662A2 (en) * | 2003-03-14 | 2004-09-23 | Creo Inc. | Development enhancement of radiation-sensitive elements |
| JP2004341036A (en) * | 2003-05-13 | 2004-12-02 | Fuji Photo Film Co Ltd | Platemaking method for lithographic printing plate |
| DE602004022008D1 (en) * | 2003-12-18 | 2009-08-27 | Agfa Graphics Nv | Thermosensitive lithographic printing plate precursor |
-
2004
- 2004-04-21 DE DE200460006378 patent/DE602004006378T2/en not_active Expired - Lifetime
- 2004-04-21 EP EP20040101647 patent/EP1588847B1/en not_active Expired - Fee Related
-
2005
- 2005-04-19 JP JP2005121405A patent/JP4731197B2/en not_active Expired - Fee Related
- 2005-04-21 CN CN 200510067607 patent/CN1689802B/en not_active Expired - Fee Related
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