Method of measurement of aromatic varnish application

摘要

A method of measurement of application of aromatic varnish in offset and rotogravure printing includes adding to the aromatic varnish as a marker, one or more of organic and non-organic pigments that can be seen in visible or UV light in the amount ranging from 40,000 to 500,000 per 1 mm3. The mixture of the aromatic varnish and the marker undergoes dispergation, and clean proofs are made where the aromatic varnish coat corresponds to the coat assumed in the printing process. Using a microscope with magnification ranging from 100× to 500×, the number of pigment grains is measured in the clean proofs and then the proper printing process takes place. Samples printed with the varnish are collected and observed under a microscope in the reflected light, and then the number of visible pigment particles in the collected sample is compared with the number of visible pigments in the clean proof.

主权项

1. A method of measurement for an application of aromatic varnish including an agent used to identify organic components and compositions in liquid and solid state, comprising:
adding to the aromatic varnish as a marker, one or more of organic and non-organic pigments that can be seen in visible or UV light in an amount ranging from 40,000 to 500,000 per 1 mm3, which corresponds to a concentration ranging from 0.5% to 10% by weight compared to the aromatic varnish, depending on a density of the pigment added and a shape of grains, the size of which ranges from 0.1 μm to 50 μm, and then the mixture of the aromatic varnish and the marker undergoes dispergation, and making clean proofs from the obtained mixture of varnish and marker, where a coat of the aromatic varnish corresponds to a coat assumed in a printing process, and in the clean proofs, a number of pigment grains is microscopically measured with a magnification ranging from approximately 100× to 500×, and then the printing process takes place during which samples printed with the varnish during the printing process are collected and microscopically observed under magnification ranging from approximately 100× to 500×, and comparing the number of visible pigment particles in the sample collected during the production process to the number of visible pigments in the clean proof.