Calculation and experimental study of permeating depth of printing ink in porous papers in printing;

The influence of ink penetration on color replication was analyzed from the ink penetration theory,penetration models,and experiments on the common paper and photo paper which have small color difference and optical quality difference.

The influences of different offset papers and printing processes on ink penetration depth were analyzed.

Under ink penetration condition,the theoretic model to predict color presentation of fluorescent halftone presswork was established.

Study on penetration depth of cement-based capillary crystalline waterpro of materials with SEM and EDAX;

Microscopic analysis is made on cement based permeable crystallization type waterproof paint and study is made on chemical reactions taken place when active ingredient of the paint penetrated into the concrete and on penetration depth of crystalloid product and active ion that may create by reaction using XRD and SEM.

The base properties of five offset paper was measured,and the penetration depth,after printing,was tested when the same ink enter into these paper.

The article is focused on the penetrating process,penetrating depth,penetrating concentrate of the active chemical substance hydrated production,the SiO32-ion,of the capillary crystalline waterproofing coatings in the base concrete in standard test condition,which is described in the GB 18445,by the way of analyzing the dates getting from the chloride ion corrosion on the concrete.