The liquid part of the ink component is called the binder; the solid component is the color material (pigment or dye); and various additives.The connecting material is a colloidal fluid with a certain viscosity. Its function is first to serve as a carrier for pigments, mixing and connecting solid particles such as powdered pigments. The pigments are evenly dispersed in it, relying on its wetting e...
The functions of polyurethane resin in inks are as follows: 1. Excellent yellowing resistance. Polyurethane resin for ink is mainly synthesized from aliphatic polyester and aliphatic isocyanate as the main raw materials during the preparation process. Compared with aromatic polyurethane, it has excellent optical stability, and the film has excellent Yellowing resistance. 2. Excellent adhesion fast...
With the development of China's economy and cultural undertakings, the printing and publishing industry and packaging industry have developed rapidly. Domestic demand for ink has increased dramatically. As people's environmental awareness increases and people's demand for safety in food packaging and printing increases, it is required that the proportion of aromatic hydrocarbons and toxic volatile...
Summary The development and innovation of water-based ink connecting materials determines the technological innovation of inks. Water-based polyurethane binder has broad application prospects in the field of water-based inks due to its good wear resistance, adhesive properties, film-forming properties and other advantages. According to the research direction of water-based polyurethane ink applica...
The polyurethane binder plays a crucial role in the application of gravure lamination ink, offering extraordinary performance. Gravure lamination is a widely used technique for laminating films onto various substrates, such as paper, cardboard, or flexible packaging materials. The polyurethane binder acts as a key component in the ink formulation, providing essential properties and benefits. First...
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