How to Simulate Printing Test and Evaluate its Adaptability Based on ISO 3782

How to سimulatه صrinting تest and Evaluate its أdaptability Based on ISO 3782

There are different methods for simulating printing test internationally.
Common measurement methods include
أ) Use IGT printability testers to control ink transfer under set pressure and speed, measuring ink transfer, dot gain, and paper picking resistance.

ب) The AIC2 – 5 tester simulates printing, controlling ink film parameters to assess ink penetration, surface roughness, and color density of printed results.

ج) Advanced testersadjust pressure and speed to mimic various presses, using sensors to record data like friction during ink transfer for issue detection.

Measurements based on ISO 3782 also specify the following calculation methods.
Moreover, it specifies a method using the pendulum or spring model of the IGT tester to measure the picking resistance of paper and board, differing from other methods by focusing on accelerating speed under constant force with standard oil. And it applies to paper and board used in lithographic or letterpress printing, providing internationally agreed guidance on tester operation unlike methods with non-reproducible results. The standard details apparatus setup, test procedures, and reporting requirements for consistent measurement, distinguishing itself by addressing two IGT tester models and emphasizing calibration and sample conditioning.

2.Let’s take ink printability tester as an example

1.1 شروط الاختبار

Carry out all tests in the atmospheric condition at which the paper or board has been conditioned. Ensure that the tester and the test material are at the test temperature.

1.2 Inserting test pieces

Place the test piece in the clip.

Turn the sector into the start position, keeping the strip in line with the sector and flat against the packing.

1.3 Preparation of printing disc

Apply the appropriate quantity of oil to the oil application system and distribute it on the system for a minimum time of 8 دقيقة. Then place the printing disc on the appropriate shaft to receive the oil for a minimum time of 90 س.

NOTE – The use of the back rollers supplied with the IGT tester is optional.

1.4 Making a test

Place the oiled printing disc on the shaft of the printing apparatus until it snaps into position.

Turn the brush to make contact with the test piece on the sector. Make a print by operating the lever.

GA-1403

This instrument is a universal paper and board printing adaptability tester. It is according to the latest “PAPER printing adaptability” national and international standards, specially developed for paper printing hair test computer control instrument. Its test results are compatible with AIC2-5, IGT A1-3 and IGT A2-3. The instrument adpots advanced electromechanical technology at home and abroad. It is equipped with a high-speed uniform ink equipment, an inker with standard scale, a pulling observation lamp and an aluminum printing plate.

The instrument is suitable for various offset, relief and intaglio printing paper and board simulation printing test. Is the paper testing center, معاهد البحث العلمي, universities and related paper enterprises ideal printing hair testing instrument.