Recognition of printing standards and norms in the

Cognition of printing standards and norms in the printing industry

ppzhan news: at present, the definition of standardization construction includes: standards, norms and methods. The standard is relatively widely used and has passed the evaluation and approval process of a management organization (such as ISO); The specification is a detailed description of the design standard for a certain work; Method is something or the way, technology or procedure of doing something

in the printing industry, iso12467 belongs to the industry standard; Gracol and swop are printing industry specifications, which use feature data sets to specify specific printing processes and materials; G7, which has been advocated in recent years, is a method for adjusting the proofing and/or printing system to achieve the expected gray balance and gradient curve

industry standard: iso12467 standard

iso12467 (processing process control of printing technology eye tone and color separation proofs and finished printing products) is developed on the basis of comprehensive data from several national printing quality committees around the world. It is a series of standards that provide small parameter sets for the technical attributes and visual features of various printing processes. In terms of material replacement, this standard provides manufacturers and printing practitioners with guiding principles, which is helpful to set the equipment to the standard state. The measurement data from these printing plants can be used to create ICC color description files and generate proofs that match the printing colors

iso12647 standard is helpful for information exchange among printing practitioners, prepress departments and print buyers to develop 3D printing materials with higher performance

iso12647 Kristiansen said in the statement: "Our mission is to inspire and cultivate tomorrow's architects, which must be based on the standards including ink, paper, measurement and visual observation conditions.

iso12647 standard includes 7 parts, each part defines the small value of the process parameters for different printing processes

iso: process control of eye tone color separation samples and printed products: parameters and measurement conditions

iso: offset lithography

iso: paper cold consolidation Type offset printing

iso: Publishing gravure printing

iso: silk printing

iso: flexographic printing

iso: sample production directly from digital data

industry specifications PSO, gracol Swop and japancolor: in order to help the printing industry realize the ISO standard

offset production standard PSO (processstandardoffset) is formulated by Fogra, an image technology research association located in Munich, Germany, for BVDM (German printing media industry alliance) for the implementation of the German printing industry. PSO is also based on the printing process standard ISO specification. PSO strictly follows ISO specifications and adds some supplementary specifications, especially for digital proofing, or in case of conflict with field colors, the use of intermediate color priority

gracol General requirements for applications in commercial offset lithography is a color reproduction specification for sheet fed offset lithography. Gracol7 adopts neutral gray printing density curve or takes NPDC as the core content to standardize the standard conditions and implementation methods of printing according to ISO printing standard

to some extent, the difference between PSO and gracol is very small. Both of them advocate that mid tone control is more important than field color control

swop standard is for web offset printing. Swop is a color reproduction specification for web offset printing. Swop specification is applicable to rotary offset printing using ink and paper specified by ISO. There are two swop specifications: swop3 is used for printing on No. 3 paper, and swop5 is used for printing on No. 5 paper

japancolor is a specification and certification system developed by the Japan printing machinery association, which aims to encourage the printing industry in Japan to widely adopt printing standards. Japancolor complies with ISO standards and is similar to gracol and PSO specifications; It provides guidelines for sheet fed offset printing, newspaper and web offset printing, and these guidelines have been specially revised to meet the special needs of the Japanese printing market

industry method G7: Method G7 used to realize gracol and swop. This control method from proofing to printing provides a relatively new method for printing machine and/or proofing color calibration. From print buyers to design agencies, to printing houses, and then back to print buyers, G7 has completely established a closed-loop vision based control method. Using this method, we can actually print on any kind of printing machine or substrate, while retaining the common and consistent visual effects. G7 is not only suitable for commercial printing, but also for publication and paper printing, flexographic printing, silk and inkjet printing

g7 is based on data imaging, spectrophotometry and computer direct plate making technology. It is based on the theory that the visual effect, that is, how an image looks in people's eyes, from dark tone to bright tone, is mainly controlled by gray tone, rather than measuring the area of printing points. G7 is named after this gray scale calibration technology (g) and seven ISO inks (7); It focuses on the gray balance data of bright and middle tones, rather than density targets, such as the field density and point enlargement value of each color. G7 gives the definition of gray balance and neutral gray printing density curve (NPDC), and takes these as the basis for calibration and image reproduction to be made by general flexible packaging manufacturers, so as to ensure that documents created by G7 method have similar visual effects when printed by any printing process

standardization is to let the printing industry follow the simple rules recognized by industry experts and their customers. Iso12647 unified standard is a set of simple program framework, which makes your printing more definite and effective. More importantly, printing by using color measurement and color management [encyclopedia] technology can provide image quality and consistency, improve the quality of products delivered by enterprises to customers, and thus reduce the time and resources of printing plants and their customers