This research study was designed to show the differences between currently available conventional and hybrid/stochastic screens, and to show the steps required to predict the outcome of the process. Seven suppliers supplied GATF with two sets of plates — one for image analysis, and one to be printed under controlled conditions at GATF. Measurements were collected for density, tone value increase, print contrast, and gray balance; these were compared to demonstrate differences between conventional and hybrid/stochastic screening solutions.

Target Audience: Any screen printing professional who needs detailed experimental information on stochastic and hybrid screeing.

Table of Contents:

Introduction

Goals of This Study

Protocol

Results and Discussion

Conclusion

References

Appendices:

Sample Questionnaire and Manufacturer Responses

Results of Plate Dot Area Measurement

Ink and Paper Properties

Participants' RIP, Platesetter, and Plate Selections

Evaluation of 175-lpi Print Characteristics vs. 20 Micron Stochastic/Hybrid Screening

Tone Curves for Conventional and Stochastic Work

Gray Balance Measurements

Color Gamut Area Calculations