I. Introduction The “water-resistant pigment-based water-based pens†that can be purchased on the market are mostly produced by Mitsubishi Corporation of Japan. Most of the water-based pens produced by some domestic enterprises use "water-based dye" inks, and a small number of "water-resistant pigment type" inks, but all of these water-based inks are imported. The biggest disadvantages of "aqueous dye type" inks are: water resistance, light resistance, poor migration resistance and poor preservability. As people's requirements for quality, environmental protection, safety and cost continue to increase, "water-based dye" inks are gradually being replaced by "water-resistant pigment" inks.
China is a big pen country, but the core technology used, ink, especially pigment ink, is completely dependent on imports. The core technology is completely monopolized by a few countries such as Germany and Japan. Therefore, the success of the development and development of "water-resistant pigment-based water-based pen ink" is related to the premise that we can make a pen-making power.
For sustainable development and technological innovation, Suzhou Sanwei Nano Technology Co., Ltd. is committed to the development, production, marketing and application of new “organic/inorganic pigment†nano-products by relying on technology introduction, talent training and large capital investment. , is a high-tech ink production company.
Second, the development of pigment-based water-based pen ink At present, the National Pen Standardization Center is preparing to formulate the standard for “examination-specific water-based ballpoint penâ€. The ink used must be: "Pigment-based water-based ink", which must have the following characteristics:
1. Excellent water resistance, light resistance, migration resistance and heat resistance
2. The main solvent used is: water
3. Auxiliaries and resins used: all can be quickly biodegraded to reduce pollution
4, pigment selection: pigments in line with environmental standards as a coloring agent
5, excellent ink performance, cost-effective
6. The content of “heavy metals and toxic and hazardous substances†in the ink must meet the EU standard (EU Rolls Directive)
7. Ink must comply with the mandatory national standard for the General Requirements for Safety of Student Supplies (GB 21027-2007)
Through the technical cooperation and exchanges with some famous enterprises in Taiwan, Japan, Germany and the United States, Sanwei has finally developed its “pigment-based water-based pen ink†after a year of research. The products have been tested by the “National Light Industry Quality Supervision and Inspection Centerâ€, “Taiwan Industrial Institute†and “Cooperative Enterpriseâ€. The results show that all the performances have reached the level of international similar products and have passed EN-71.3 and EN-7l. 9 tests and ASTM D-4236 certification.
This ink is mainly used for the “water-resistant pigment-based water-based pen†(ie “pigment-type direct-liquid water-based penâ€), which has created the conditions for the “test-specific water-based ballpoint pen†prepared by the National Pen Standardization Center. The guarantee provides a basis for China's pen industry to be based on innovation and independent intellectual property rights; it also has a strong backing for China's pen-making enterprises.
III. Development and Future Suzhou Sanwei Nano Technology Co., Ltd. will continue to grow and develop, forming a competitive advantage with nanotechnology as its core, creating a world-class brand image of “Sanwei†and serving China's pen-making enterprises.
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