Ink Sag Tester

The ink sag tester applies ink onto a test card using a vertical scraper, and after a period of rest, the downward flow traces of the ink are observed. It is used to detect the anti-sagging performance of ink, assess the suitability of ink before printing, and prevent sagging defects in printed products.
Selection
When selecting an ink sag tester, consider the precision of the scraper, compatibility of test card specifications with industry standards, ease of operation of the instrument, and coverage of the measurement range for common ink types. Ensure the instrument has a sturdy structure and clear, easy-to-record readings.
groove depth

Terms

Standards

Instruments

A wet film with a film thickness of 50~ 675 μ m was prepared by using a coating scraper, and the sag property was observed when placed vertically. The maximum thickness without sag was expressed, which was suitable for Paints testing.

$ 411.00

Film thickness range 650~ 875 μ m, Graduation 25 μ m, stainless steel material, Dimension 120 * 22 * 20mm, suitable for the determination of relative sag of Paints.

$ 154.00

Made of stainless steel, the film thickness range is 250~ 475μm, Graduation 25μm, Dimension 120 * 22 * 20mm, suitable for standard sag performance testing.

$ 154.00

Spreader 5 kinds of film thickness, the other side of the test sag cover 10 kinds of thickness 75-300 microns, stainless steel material acid and alkali resistance, in line with ASTM standards, easy to accurately evaluate film performance.

$ 1432.00

The multi-groove coating scraper can scrape 10 wet-films of different thicknesses at one time, the thickness difference of adjacent films is 25um, and the wide film thickness range of 50-675um is supported. It is convenient to visually observe the sag situation by placing the test plate vertically.

$ 315.00

The stainless steel material ensures durability, the film thickness range is 450~ 675 μm, and the groove difference is 25 μm, which is convenient for accurate determination of Coating sag on site.

$ 154.00

Using 15.5cm/min ink wiping speed, equipped with 0.1mm ink coating platen, the test process is precisely controlled by 4.3 inch Touchscreen, which can accurately determine the absorption capacity of the material to the inks vehicle.

$ 2784.00

The device can pRoduce 10 different film thickness stripes, film thickness range 250-475μm, Graduation 25μm, suitable for vertical position testing, to help evaluate coating sag tendency and ensure stable test conditions.

$ 157.00

Dual function design can test leveling and sag at the same time, flow plane supports 5 kinds of film thickness Spreader, flow surface provides 10 kinds of film thickness range 75-300 micron, stainless steel material is acid and alkali resistant, in line with ASTM D4400 and D2801 standards.

$ 1248.00

Automatic ink running stability, ink time and speed can be set, printing pressure 0~ 2mm adjustable, provide low, medium and high three printing speed, each time can be proofed 4 colors to facilitate Color contrast.

$ 3430.00

The ink wiping speed of the instrument is 15.5 +/- 25px/min, the ink absorption time is 120 +/- 5s, and the 4.3 color Touchscreen control can accurately evaluate the acceptance of inks and the absorption capacity of the vehicle.

$ 4342.00

The device can precisely control the film thickness of the ink layer of the color strip, and the ink injection amount is 0.0012g, which is used for ink contrast and color concentration detection.

$ 173.00

The ink wiping speed is 15.5cm/min, the opening area of the ink coating platen is 20cm ², and the ink absorption time is 120s. The test process is automatically controlled to accurately determine the absorption capacity and penetration performance of the paper to inks.

$ 4124.00

It can simultaneously print color bars of different Colors or Ink Film thickness, detect inks Hue and Gloss, uniform ink time can be adjusted from 1 to 800 seconds, support dry and wet ink discoloration analysis and abrasion resistance testing.

$ 4367.00

The equipment supports 0-2MM pressure adjustment, providing three-speed printing speed (10/15/20 rpm) and uniform ink speed (650/800/1000rpm), which can imprint 2.5mm thick paper and 1mm plastic film to achieve precise uniform ink and stable operation.

$ 3381.00

Articles

The Printability Tester Simulates the Effects of Different Printing Pressures on Offset Ink Transfer Rate.
This paper investigates how the printability tester simulates the effect of different pressures on ink transfer rate in offset printing.
Application of Gravure Printing Proofer in Water-based Ink Proofing and Pinhole Defect Evaluation
This article introduces how the gravure printability tester is used for water-based ink proofing and pinhole defect evaluation. Water-based inks are environmentally friendly but prone to tiny pinhole defects. The instrument enables standardized sample preparation and reduces human interference by controlling parameters such as cell depth and doctor blade angle.
The Application of Contact Angle Measurement Instruments in the Study of the Relationship Between Ink Printing Wettability and Substrate Surface Tension
This article introduces how a contact angle measuring instrument is used to study the relationship between wettability and substrate surface tension in ink printing. It first explains the principle, assessing the degree of wettability through the size of the contact angle, where an angle less than 90 degrees indicates good wettability.
Use of Fluorescence Spectrophotometer in Measuring Excitation and Emission Spectra of Anti-Counterfeiting Fluorescent Inks
This article introduces the application of fluorescence spectrophotometry in the spectral measurement of anti-counterfeiting fluorescent inks, including instrument calibration, sample preparation, and methods for measuring excitation and emission spectra.
Application of Flexographic Proofing Press in Evaluating Color Reproducibility of Flexographic Inks
This article primarily discusses the use of a flexographic proofer to evaluate the color reproducibility of flexographic inks. It introduces the role of the proofer in simulating production conditions and explains how to prepare samples by setting parameters such as pressure, speed, and anilox roll specifications.
The use of gravure proofing machines in the comprehensive evaluation of gravure ink printability and drying performance.
This article explores how a gravure proofing press can be used to comprehensively evaluate the printability and drying properties of gravure inks. The experiment tested the dot sharpness, transfer rate, and leveling properties of different inks using standard equipment, while recording drying times through the filter paper method and infrared temperature measurement.
The friction color fastness tester measures the amount of color transfer under dry and wet abrasion conditions for ink.
This article introduces a method for testing the amount of ink color transfer using a friction colorfastness tester, simulating both dry and wet rubbing conditions. Dry rubbing involves rubbing the ink surface with a dry white cotton cloth, while wet rubbing uses a white cotton cloth moistened with water.
Application of Linear Abrasion Tester in Testing Scratch Resistance of Printing Ink Coatings on Packaging
This article introduces the principle, method, and application of the linear abrasion tester in testing the scratch resistance of packaging printing ink coatings.
Application of High-Temperature Viscometer in Testing the Melt Viscosity Characteristics of Hot Melt Ink
This article introduces a method for testing the melt viscosity of hot-melt ink using a high-temperature viscometer. The test employs a rotational viscometer to measure the viscosity of three ink samples at different temperatures.
Determination of Thermal Decomposition Temperature and Inorganic Filler Content in Ink by Thermogravimetric Analyzer
This article introduces how to determine the thermal decomposition temperature and inorganic filler content of ink using a thermogravimetric analyzer. During the test, a small amount of ink sample is heated in a nitrogen or air atmosphere, and the mass change curve is recorded.
Application of Cone-and-Plate Viscometer in Determining the Rheological Curve of Non-Newtonian Fluids in UV Inks
This article introduces how a cone-plate viscometer measures the rheological curve of UV ink. UV ink is a non-Newtonian fluid whose viscosity changes with shear rate.
Spectrophotometer measures ink spectral reflectance and opacity.
This article introduces how to measure the hiding power of ink using a spectrophotometer. The instrument irradiates the ink sample, measures its reflectance within the visible light spectrum, and calculates the hiding power using the Kubelka-Munk model.
Surface Absorbency Tester for Predicting Drying Speed of Printing Ink on Coated Paper
This article explores how the surface absorbency tester predicts the drying speed of ink on coated paper. Traditional methods rely on actual printing tests, which are time-consuming and difficult to quantify.
Flexographic proofing press is used for evaluating the printability of water-based inks on kraft paper.
This article explores the use of flexographic proofing printability testers to evaluate the printing performance of water-based inks on kraft paper. The instrument simulates actual printing conditions, enabling quantitative analysis of key parameters such as ink transfer rate, print contrast, and dot gain.
Standard Procedure for Printability Tester in Evaluating Ink Transfer Performance
This article introduces the standard procedure for evaluating ink transfer performance using a printability tester. The transfer performance of ink directly affects print quality, and standardized operations can enhance the reliability of test results.