STP-SL Grade A Positive Thermal Ctp Plate

STP-SL Grade A Positive Thermal CTP Plate is a highly sensitive, high-definition thermal CTP printing plate with the advantages of fast exposure, high definition, low chemical pollution, long service life and good repeatability. It is suitable for commercial printing, packaging printing, publishing printing and other fields to meet the requirements of high-quality printing.
STP-SL Thermal CTP Plate
Key Features
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Holds the finest detail without the need to back mask
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Quick wash out
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Requires minimum impression settings, giving good balance between solids and screens
Advantage

High sensitivity / high productivity

Long runs on press without post-baking

Resistant to UV inks and solvents

Low consumption of developer and replenisher

High compatible with different developers

Technical specifications
Type Positive Thermal CTP plate
Spectral Sensitivity 800-830nm
Exposure Energy 120~130 mj/c㎡
Resolution 200 lpi ( 1~99%)
Run-Length 50,000~100,000 (UV-INK )
100,000,~200,000 ( Conventional Ink )

*Run-Length varies with its printing conditions and imaging content

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Latest updates
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Oct 30,2026
Food packaging compliance discussions usually focus on ink and substrate. The printing plate sits upstream, and the common assumption is that it never touches the final product—so it generates no comp...
Oct 28,2026
Corrugated board is often discussed as a single substrate, but the printing surface—the liner—varies widely. Uncoated kraft liner is rough and absorbent. Recycled liner contains varying fiber quality ...
Oct 22,2026
Corrugated board is not a flat surface. The flutes create peaks and valleys, and the liner varies in roughness and absorbency. Plate thickness is the first physical buffer between the press and that u
Oct 12,2026
Plate edge lift is one of the most common—and most frustrating—problems in flexographic printing. When a plate edge lifts from the mounting tape, ink transfers to areas that should be unprinted, causi...

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