12 Graphic Communications
Exposure Time 244
Processing Halftones 244
Color Separations 244
Screen Angles for Color Reproduction 245
Black Printer 245
Special Effects 246
Duotone Techniques 246
Posterization 246
Tone-Line Process 247
Film Processing 247
Automatic Film Processing 248
Think Green: Wet Chemistry 249
Contact Printing 249
Contact Printing Considerations 250
Chapter 12
Imposition and Layout 252
Mechanics of Layout 253
Dummy 253
Signatures 253
Types of Imposition 255
Sheetwise 255
Work-and-Turn 255
Work-and-Tumble 256
Typical Assembly
Procedures 256
Quality Control Devices 258
Electronic Imposition and
Stripping 258
Imposition Software 259
Portable Document Format 260
Chapter 13
Digital Printing Technology 262
Digital Printing Overview 263
Process of Direct Imaging 264
Digital Workflow 264
Digital Printing Methods 265
Ink-Jet Printing 265
Think Green: Electronic Media
Waste 266
Academic Link: Volatile Organic
Compounds 268
Electrophotography 268
Ionography 269
Magnetography 270
Dye Sublimation 270
Thermal Transfer 270
Digital Printing
Applications 271
Variable Data Printing 271
Distributed Printing 271
Digital Asset Management 271
Career Link:
Digital Press Operator 272
Advantages and
Disadvantages of Digital
Printing 272
Chapter 14
Lithographic Platemaking 276
Lithography 277
Platemaking Equipment 278
Automatic Plate Processors 279
Lithographic Plates 279
Plate Grains 280
Think Green: Recycled Plates 281
Plate Coverings 281
Plate Coatings 281
Plate Classifications 281
Handling Plates 282
Platemaking Systems 282
Photo Direct Plates 282
Thermal Plates 283