GB/T 34690.2-2017 in English
VALIDGraphic technology-Digitalized process control for offset printing-Part 2:Working environment
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 34690.2-2017 |
| Document status: | VALID |
| Title in English: | Graphic technology-Digitalized process control for offset printing-Part 2:Working environment |
| Title in Chinese: | 印刷技术 胶印数字化过程控制 第2部分：作业环境 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-11-01 |
| Implemented on: | 2018-05-01 |
| ICS Classification: | 37.100.01-Graphic technology in general |
| Chinese Classification: | A17-Printing Technology |
| Professional Classification: | GB-National Standard |
| Related Keywords: | printing technology offset digital process control
digital process control technology graphic technology-digitalized process control traditional offset printing technology offset printing production |
| Related Topics: | Digitizing
Printing Technology "Digitizing Printing Technology Offset Printing Plate Making GB/T 34690.2 GB/T 34690.2-2017 working environment Digital Printing Technologies International |
《GB/T 34690.2-2017印刷技术 胶印数字化过程控制 第2部分：作业环境》由TC170（全国印刷标准化技术委员会）归口，主管部门为国家新闻出版署(国家版权局)。
Introduction
GB/T 34690.2-2017 Standard Overview
This standard is the second part of "Printing Technology Offset Digital Process Control", which mainly regulates the working environment in offset printing production. The standard puts forward specific requirements from multiple aspects such as work clothes color, proofing conditions, digital hard proofing environment, computer direct plate making and printing, aiming to ensure the stability and consistency of printing quality.
Comparative Analysis of Standard Framework
| Standard Dimensions | Specific Requirements | Implementation Suggestions |
|---|---|---|
| Work Clothes Color | Neutral gray, Munsell lightness value N6~N8, chroma <0.3 | It is recommended to purchase gray work clothes that meet the standards and regularly check whether the employees' clothing meets the requirements. |
| Soft proofing environment | D50 standard light source, illumination 2000±500lux, color rendering index ≥90 | It is recommended to configure professional proofing equipment and calibrate the light source and measurement tools regularly. |
| Digital hard proofing conditions | Dust-proof and clean, neutral gray environment, temperature 23±3℃, humidity 50±10% | It is recommended to set up a special proofing room and install temperature and humidity monitoring equipment. |
Explanation of professional terms and practical applications
D50 standard light source: key equipment for color matching and quality control to ensure the consistency of proofing and printing results. For example, when comparing soft proofing with hard proofing, D50 light source must be used to avoid color deviation caused by light source differences.
Metamerism: refers to the phenomenon that colors with different spectral compositions look the same under specific conditions. The standard requires the metamerism index to reach C level or above, which helps reduce the risk of color deviation in printed products under different environments.
Technology Evolution Analysis
Compared with traditional offset printing technology, this standard introduces digital process control technology and emphasizes standardized management of the working environment. This evolution reflects the modern printing industry's demand for quality stability and efficiency improvement, especially in digital proofing and computer-to-plate (CDI) and other links.
Implementation Recommendations
- Hardware Facilities: Invest in equipment such as light sources, illuminance meters and color temperature meters that meet the standards to ensure measurement accuracy.
- Staff Training: Regularly train employees on standardized operations, especially work clothes color management and environmental reflectivity control.
- Process optimization: Establish a complete quality control system to ensure that every link from raw material storage to finished product output meets standard requirements.
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