This standard specifies the test method for the viscosity of gravure plastic ink. It is applicable to the test of the viscosity of gravure plastic ink. GB/T 13217.4-1991 Test method for gravure plastic ink Viscosity test GB/T13217.4-1991 Standard download decompression password: www.bzxz.net
This standard specifies the test method for the viscosity of gravure plastic ink. It is applicable to the test of the viscosity of gravure plastic ink.

National Standard of the People's Republic of China
Test method for viscosity of plastics gravure printing inks1 Subject content and scope of application
This standard specifies the test method for viscosity of gravure plastic inks. This standard is applicable to the test of viscosity of gravure plastic inks. 2 Principle
GB/T 13217. 4-91
The time for a certain amount of ink sample to flow out from a hole of a specified diameter at a certain temperature is the viscosity of the ink sample. 3 Materials
3.1 Cotton yarn.
3.2 Scrubbing solvent: ethanol or gasoline.
4 Instruments
4.1 Coating No. 4 cup viscometer: QND~4 type.
4.2 Mercury thermometer: temperature range 0~50℃, graduation value 0.1℃. 4.3 Stopwatch: graduation value 0.2s.
4.4 Measuring cup: capacity is 100mL.
4.5 Glass rod: 7mm, length is 250mm.
5 Test conditions
The test should be carried out under the conditions of temperature 25±1℃ and humidity 65%±5%. 6 Test steps
6.1 Wipe the inner wall and the nozzle of the viscometer cup clean, adjust the horizontal spiral of the bracket, and make the viscometer in a horizontal state. Place a 100mL measuring cup under the nozzle of the viscometer.
6.2 Block the nozzle hole with your hand, pour the sample that has been stirred evenly and adjusted to 25±1℃ into the viscometer, and use a glass rod to scrape the bubbles and excess sample into the groove. wwW.bzxz.Net
6.3 Release your fingers and start the stopwatch at the same time. When the sample flow is interrupted and the first drop appears, stop the timing. At this time, the time indicated by the stopwatch is the viscosity of the ink.
7Test results
The test should be carried out twice in parallel, and the difference between the measured values ​​should not be greater than 3s. Approved by the State Bureau of Technical Supervision on September 14, 1991 and implemented on August 1, 1992
Additional instructions:
GB/T13217.4—91
This standard was proposed by the National Technical Committee for Standardization of Inks. This standard is under the jurisdiction of the National Technical Committee for Standardization of Inks. This standard was drafted by the Technical Committee for Ink Test Methods of the National Technical Committee for Standardization of Inks. The main drafters of this standard are Jin Liansheng, Tian Jianzhong and Li Zhiguang. 10
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