Service content
The testing of GRGTEST packaging materials (Ink Testing) includes testing the density, fineness, covering power, glossiness, light resistance, heat resistance, chemical resistance, viscosity, etc. of the ink.
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Test project |
Testing standards |
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Density |
GB/T 8013.1-2018, GB/T 4472-2011, GB/T 32366-2015, GB/T 1463-2005, GB/T 28935-2012 |
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Fineness |
GB/T 6753.1-2007, GB/T 1724-2019 |
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Covering power |
GB╱T 1726-1979 |
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Gloss |
GB 28231-2011, ISO 2813:2014, GB/T 9754-2007, ISO 13803-2014 |
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Light resistance |
GB/T 16422.2-2014 |
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Heat resistance |
GB/T 3512-2014, ISO 2440:1997, GB/T 7141-2008 |
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Chemical resistance |
GB/T 8013.1-2018, GB 9274-1988, GB/T 9265-2009, ISO 2812-1:2017 |
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Viscosity |
GB/T 1723-93, GB/T 2541-1981, GB/T 6538-2010 |
Service scope
Printing ink, UV ink, water-based ink, screen printing ink, offset printing ink, glass ink, solder mask ink, anti-counterfeiting ink, PVC ink, metal ink, environmentally friendly ink, thermal sensitive ink, etc.
Test cycle
Regular short-term projects take 7-10 working days, while long-term aging projects are scheduled according to actual conditions.
Service background
The quality of ink directly affects the correctness and stability of the color of printed products. The water-based ink used in flexographic printing has the characteristics of low viscosity and minimal pollution. Ink is an essential material in the printing industry, and its performance directly affects the printing quality and production efficiency of products. The main purpose of ink testing is to determine whether the ink meets the requirements of the printed material. This includes checking key characteristics such as ink color, viscosity, pH value, and drying time. By evaluating these characteristics, it can be determined whether the ink is suitable for a specific printing process and whether it can provide the desired printing effect.
Our Srengths
Nationwide Service Coverage
GRGTEST is a comprehensive, state-owned third-party metrology and testing institution with a nationwide network. Its technical service guarantee network spans the entire country, and its chemical analysis laboratories are situated in six cities: Guangzhou, Wuxi, Shanghai, Tianjin, Hangzhou, and Chongqing. This makes it convenient for customers to receive testing services in their vicinity.
Recognition by authoritative institutions
GRGTEST has received recognition and authorization from numerous domestic and international authoritative institutions and organizations, boasting a highly professional technical service team.
Professional technical services
Equipped with advanced chemical analysis and testing equipment, and a team of professional talents, GRGTEST's capabilities encompass providing testing, evaluation, certification, and training services for toxic and harmful substances (such as RoHS, REACH, POPs, VOC, ozone-depleting substances, etc.), material composition and performance analysis, reliability life prediction, food contact materials, and other fields.
Provision of customized services
With comprehensive testing capabilities and extensive service experience across various industries, GRGTEST can offer tailored solutions to our clients. We assist in the green and environmental management of corporate products, ensuring compliance with legal and regulatory requirements across different countries and regions.
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