Ink technology revolution, so clean blankets are no longer required to organic solvents, which greatly reduces the emissions of volatile organic compounds, water washing of water by 93% and 7% of the harmful surfactants (such as soap, etc.) consisting of is a water-based cleaning agent. (3) protection of water resources. Book printing in 1995, 92 percent of the world's population, get plenty of water. If the current rate of consumption of water to have been consumed down to 2050, only 58 percent of the world's people hardcover book printing, will have plenty of water. In the future, some countries even go over water fight. Waterless printing can protect water resources. For example, a printing company in Switzerland, introduced the world's first generation of anhydrous web presses, Shanghai printing can save 250,000 liters of water per year. Most of these require water from a nearby lake, it is a source of drinking water nearly a million people. If three pairs of precision measurement data calculated above will be further increased), the relative error of ink penetration depth and the measured value is within a thousandth, illustrate the calculation method and a processing method for the calculation of the depth of ink penetration sufficient precision Claim. Medium pressure printing process, printing speed and ink penetration depth is the most important parameter affecting brochure print quality book printing, because there is no more accurate estimate of measurement data set in which the two groups are known, the third group of the calculated values ??( predicted value) product brochure printing, then the predicted and measured values ??are compared. The results in Table 3, the table for the printing pressure F, V is the printing speed (m / s), (k / φ) 1 by the formula (13) the calculated ratio of seepage holes (called measured value), (k / φ) 2 for the use of interpolation method to calculate penetration hole than the predicted value. Hardcover book printing, printing Hai Jun (certified), book printing provided by Shenzhen Hai Chun Printing Limited. Printing Co., Ltd. Shenzhen Hai Jun (www.szhaijunys.com) is an industry leader in Shenzhen, Guangdong, print, publication, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jun printing leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea-Jun printing a better future.