1、 The mechanism of enhancing liquidity

Reduce ink viscosity

SAIB, as a polymer plasticizer, can be inserted between ink molecular chains to increase molecular spacing, effectively reducing intermolecular frictional resistance and making ink easier to spread and flow under printing pressure. For example, in offset printing, this feature can reduce the need for printing pressure adjustment and avoid ink color unevenness caused by uneven pressure.

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Optimize leveling characteristics

The polar groups of SAIB form hydrogen bonds with the ink resin, forming a stable molecular network structure that not only controls the flow rate of ink, but also promotes the uniform extension of the ink layer on the surface of the substrate, reducing defects such as orange peel patterns on the printed surface.

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Adjust emulsion stability

The hydrophobic properties of SAIB can suppress excessive emulsification of ink under the action of dampening solution, maintain internal phase stability of ink, and thus maintain controllable fluidity.

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2、 The mechanism of enhancing glossiness

Form a dense ink film

SAIB promotes resin cross-linking during ink drying, forming a continuous and smooth ink film surface, enhancing the mirror reflection ability of light. The optimal glossiness is achieved when the ink film thickness is controlled at 3-5 μ m, as excessive thickness can lead to increased diffuse reflection.

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Synergistic enhancement of resin gloss

When combined with acrylic resin and other substrates, SAIB enhances the regularity of resin arrangement through intermolecular forces, reducing the surface roughness (Ra value) of the ink film to below 0.1 μ m, significantly improving the reflection efficiency in the high light area.

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Regulating pigment dispersion

The ester structure of SAIB can encapsulate pigment particles to form steric hindrance, preventing pigment aggregation and sedimentation. When the pigment particle size is controlled within the range of 0.2-1 μ m, it can ensure color saturation and reduce surface light scattering loss