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2023

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08

Classification of Printing Inks


There are many types of ink with different physical properties, some are thick, some are sticky, and some are quite thin. Its components can be divided into three major parts: the liquid component is called the connecting material; The solid components are called pigments (pigments or dyes) and various additives. Different inks have different drying methods: different printing processes use different inks; Different substrates use different inks. With the development of printing technology, the variety of inks continues to increase, and there are also many classification methods. Ink can be classified according to the following types.

1、 Ink is classified by printing method:

1. Offset printing ink

Flat printing ink (abbreviated as flat printing ink) is a type of ink that is viscous and has a certain degree of stickiness. Most of it is oxidized film dry ink, and it must have good water resistance. It can be divided into single sheet paper ink and roll paper ink. The former is mostly quick drying oxide film ink, while the latter mainly relies on penetration drying. It can also be divided into offset bright resin ink, offset rotary ink, etc.

2. Relief printing ink

Relief printing ink (abbreviated as relief printing ink) is a viscous ink with a wide range of viscosity changes, which is related to the printing speed of the printing machine. Its drying methods include several methods such as infiltration drying, oxidation film drying, volatilization drying, or a combination of several drying methods. Embossing ink includes rotary printing ink, book and magazine black ink, thermosetting ink, news ink, color relief ink, etc.

3. Flexographic printing ink

Flexographic printing ink is a very thin ink, and from a rheological perspective, it is the closest ink to Newtonian fluids. The drying of ink mainly relies on solvent evaporation, and a part of the drying on paper is achieved by the penetration of ink into the paper. This ink can be divided into three types: alcohol type, mixed type, and water type.

4. Gravure printing ink

Gravure printing ink (abbreviated as gravure ink) can be divided into two categories: photographic gravure ink and engraving gravure ink. The former is a very thin fluid with low viscosity, completely dried by solvent evaporation, and is a volatile drying ink that can be printed on non-absorbent substrates; The latter has a higher viscosity, a higher yield value, and does not have greasiness, relying mainly on the drying of the oxidized conjunctiva.

5. Holographic printing ink

Holographic printing ink requires good fluidity, low viscosity, low viscosity, fast passing through mesh, rapid penetration and drying after transfer to the surface of absorbent substrates, and good adhesion on non absorbent substrates. There are several drying methods for it, including volatile drying, oxidative polymerization, permeation drying, two-component reaction, UV drying, etc. This ink can be divided into transcription version ink, screen version ink, etc.

6. Special printing ink

Special printing inks can be divided into foaming inks, magnetic inks, fluorescent inks, conductive inks, etc.

2、 Ink can be divided into different drying methods:

1) Oxidized conjunctival drying ink, 2) Permeation drying ink, 3) Volatile drying ink, 4) Radiation drying ink, 5) Wet setting drying ink, 6) Condensing drying ink, 7) Precipitation drying ink, 8) Two component reaction drying ink, 9) Gelation drying ink, 10) Filter drying ink, 11) Drying ink combining multiple methods.

 


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09

News

Public Notice of the Draft Environmental Impact Assessment for the 100,000-Ton-Per-Year Waste Organic Solvent Treatment Project of Guangdong Enbo Renewable Resources Development Co., Ltd.

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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15

News

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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13

News

The leaders of the CPPCC in Chaozhou, Guangdong and Xuchang, Henan visited our company for inspection and guidance

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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News

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.

We are committed to the research and application of new environmental protection materials and new processes, and strive to create a green ecological closed loop that can be used, renewable, recyclable and recyclable.