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How do we choose the appropriate printing ink
Any color is represented by three characteristics: hue, brightness, and saturation, so these three factors must be considered in the color matching process. Although theoretically black is the complete absorption of light, black ink still has a luster. Ink is made by grinding pigments (pigments) and resin binders. The particles of the pigment are wrapped in an almost transparent layer of resin oil, which has the ability to refract and reflect light. Therefore, we can feel that black ink printing still has a certain luster on the substrate. In the process of ink color matching, the ink used should be determined based on the actual printing process, ink layer thickness, printing substrate, and other conditions. When choosing ink, it is important to consider the gloss, hue, coloring power, and covering power of the ink itself.
1. Gloss can be measured by instruments or judged by the naked eye, usually only observed by the naked eye during the color matching process. Gloss actually refers to the degree to which ink printing samples have the ability to reflect light in the same direction after being exposed to light. It directly affects the appearance of printed materials and is a very important indicator. Meanwhile, when selecting ink, it is important to distinguish whether the ink itself is a glossy, semi glossy, or matte ink to avoid mixing errors.
2. Hue is the fundamental characteristic of color, used for qualitative differentiation. When color matching, the first thing to consider is whether the color is consistent. The detection method is usually to scrape the color with sample paper or simulate printing, and observe and compare the standard sample and the sample with human eyes.
3. Covering power is the degree to which ink covers its base color. The better the covering power, the worse the transparency. The level of transparency affects the efficiency of ink color matching and the degree to which it is affected by the printing substrate.
4. Coloring power is a method of indicating the concentration of ink. Its determination is a method of diluting and mixing a certain amount of ink with a certain amount of standard white ink, and then comparing it with the standard sample. The strength of color difference reflects the degree of color mixing of the ink and affects the thickness of the printing ink film.
By conducting a color identification and scraping test on colored paper, the differences in gloss, hue, and covering power between the ink sample and the standard sample can be compared. Specific method: Place standard ink in the upper left corner of the identification paper and color matching ink in the upper right corner, with a distance of about one centimeter between the two. Use a scraper to flatten the thin application part with force at an angle almost perpendicular to the color paper, and quickly unfold the thick application part with light force at an inclined angle.
After the surface of the ink dries, the ink color can be observed on the thin application part, the ink coverage and transparency can be evaluated on the black belt part, and the difference in gloss between the two can be judged on the thick application part, and the entire color appearance can be observed. Usually, black and colored ink use white scratch paper, while white ink uses black scratch paper.
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In accordance with the Environmental Impact Assessment Law of the People’s Republic of China, the Measures for Public Participation in Environmental Impact Assessment (Order No. 4 of the Ministry of Ecology and Environment), and the relevant provisions of the Announcement on the Publication of Supporting Documents for the Measures for Public Participation in Environmental Impact Assessment, and in order to ensure that the public is fully informed about and supportive of the construction of this project, the following key environmental information pertaining to the project is hereby made public:
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Technological innovation and environmental responsibility of solvent based ink manufacturing plants
1、 Technological Innovation of Solvent based Inks Formula optimization: Through continuous research and practice, we optimize ink formulas for different printing processes and materials, making the ink have better adhesion, flexibility, and weather resistance. Environmentally friendly solvents: In order to reduce the impact of ink on the environment, we have developed and applied environmentally friendly solvents to reduce VOC emissions and comply with national environmental regulations. Production process improvement: We introduce advanced production equipment and processes to improve production efficiency, reduce energy consumption, and ensure stable ink quality. 2、 Environmental responsibility of solvent based inks Compliance with National Regulations: We strictly abide by national environmental regulations to ensure that the production process and products meet relevant requirements. Green production: By improving production processes and optimizing formulas, we strive to reduce environmental pollution during ink production. Product recycling: We encourage customers to recycle ink containers after use to avoid environmental pollution caused by waste. 3、 Quality assurance of solvent based inks Strict screening of raw materials: We carefully select excellent raw materials to ensure the stability and reliability of the ink. Quality control: During the production process, we implement strict quality control to ensure that every batch of ink meets the standards. Customer Service: We provide professional technical support and services to help customers solve problems encountered during the printing process. As a solvent based ink manufacturer, we are well aware of the importance of technological innovation, environmental responsibility, and quality assurance. We will continue to work hard to promote the development of the solvent based ink industry and provide customers with excellent products and services.
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On April 10, 2024, Wang Wensen, Chairman of the Chaozhou Municipal Committee of the Chinese People's Political Consultative Conference, Chen Yanfang, Vice Chairman, Qiu Huaiqiu, Director of the Economic and Technological Commission, Cheng Sidian, Deputy Director, and Liu Baoxin, Chairman of the Xuchang Municipal Committee of the Chinese People's Political Consultative Conference in Henan Province, led a special inspection team for the chemical materials industry chain in Xuchang City to visit our company for guidance. Chen Jinhui, Secretary of the Party Working Committee of Fengquan Lake Development Zone, and other leaders accompanied the inspection. Mr. Zhang Yunhui, Chairman of Enmei, personally led the team and warmly welcomed the arrival of the inspection team!
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Hanshan Normal University and Enm hold a signing and unveiling ceremony!
To promote the service of universities to local economic and social development, and strengthen strategic and substantive cooperation between schools and enterprises. On March 7, 2024, Guangdong Enmei Chemical Technology Co., Ltd. and Hanshan Normal University jointly built a labor education practice base. The signing and unveiling ceremony was held at Guangdong Enmei Chemical Technology Co., Ltd.
Contact Information
Marketing Center:
Lane 1, Dongyang Road, Dongyang New District, Tingxia Village, Anbu Town, Chaoan District, Chaozhou City, Guangdong Province
Intelligent Manufacturing Center:
No.10 Shenzhao Road, Fengquanhu High-tech Industrial Development Zone, Chaozhou City, Guangdong Province
Tele:+86-768-6632111
Mobile phone:13827346707
Fax : +86-768-6632118
E-mail: enm@enmink.com
