GB/T 12911-1991 《Paper and board--Determination of the ink absor-bency》 Related products

This standard specifies a test method for determining the absorbency of paper and Cardboard inks. It is applicable to white or nearly white paper and Cardboard for lithography, gravure plate and relief printing. The absorption performance of inks is assessed by measuring the change in the surface reflection factor after the sample absorbs standard inks over a specified period of time. Test equipment includes an inks absorbency tester, which should be able to uniformly Spreader inks and accurately record absorption results to ensure the accuracy and Repeatability of the test. The standard provides detailed test steps and instrument requirements designed to help evaluate the absorbency of inks by paper and Cardboard during printing.