Mixing and Deaeration Solutions for Ink Materials

Ink materials are widely used in various printing fields with extremely high requirements for bubble control. Bubbles incorporated during ink preparation, grinding and filling processes will cause pinholes, white spots and uneven ink color on printed products. With self‑developed vacuum mixing‑deaeration technology, SIENOX controls the whole ink deaeration process at nanometer‑level precision, providing the industry with closed‑loop solutions from raw materials to manufacturing.


Working‑Condition Requirements

• Material Types: Ink materials (UV ink, water‑based ink, solvent‑based ink, offset ink, flexographic ink, gravure ink, screen‑printing ink, ink‑jet ink, special‑purpose ink, conductive ink, etc.)

• Initial Status: A large number of bubbles are trapped inside high‑viscosity ink during blending, grinding and filling, which cannot escape naturally. Direct printing will result in pinholes, white spots and uneven ink tone on printed outputs.

• Processing Target: Thoroughly remove micro‑bubbles from ink to guarantee smooth, bubble‑free ink texture. Avoid pinholes and white spots in printing, achieve uniform and full‑bodied ink color, and satisfy high‑grade requirements of diverse printing processes.


Comparison Before and After Improvement

Before Improvement — Pain Points of Traditional Processes:

• Printing Pinholes & White Spots: Bursting bubbles in ink produce pinholes and white spots on prints, severely damaging printing quality and yield rate.

• Uneven Ink Tone: Bubbles cause uneven ink density and inconsistent color depth on printed articles.

• Poor Printability: Bubble‑containing ink delivers unstable fluidity, leading to stringing and splashing and lowering printing efficiency.

• Uneven Drying: Bubbles impair film‑forming uniformity, resulting in inconsistent drying speed with partial under‑drying or over‑drying.

• Reduced Adhesion: Bubbles create discontinuous contact surface between ink and substrate, decreasing adhesion and triggering ink peeling.

• Poor Batch‑to‑Batch Consistency: Conventional deaeration yields unstable results with large quality deviation among batches.

 

Solution — SIENOX SIE‑MIX2000 Planetary Vacuum Mixing‑Defoaming Machine:

Leveraging the synergistic effect of “negative vacuum pressure + dynamic mixing”, it delivers professional mixing‑deaeration solutions for ink materials:

1. Dual‑Effect Vacuum Mixing‑Deaeration: SIE‑MIX2000 planetary vacuum mixing‑defoaming machine performs dynamic mixing under vacuum environment to rapidly expel and completely eliminate micro‑bubbles from ink.

2. Nanoscale Bubble Removal: Effectively removes nanoscale micro‑bubbles for fine and homogeneous ink texture, free of printing pinholes and white spots.

3. Large‑Volume Processing: SIE‑MIX2000 supports large‑batch capacity to meet mass‑production demands of ink manufacturers.

4. Multi‑Segment Precise Parameter Control: Rotating speed, duration and vacuum degree are adjustable in multi‑segments to adapt to mixing‑deaeration requirements of inks with different viscosities and categories.

5. Reliable Batch Reproducibility: Automated operation with replicable parameters guarantees consistent deaeration performance for every batch.

6. Enhanced Printability: Bubble‑free ink features stable fluidity, significantly improved printability and uniform, rich ink tone.



Sample Provider: Ink Manufacturer

Test Conditions

Item

Parameter

Test Model

SIE‑MIX2000 Planetary Vacuum Mixing‑Defoaming Machine

Test Material

Ink materials (multiple types tested)

Rotation Speed

1500 rpm

Duration

5 min

Vacuum Degree

-95 KPa

Effect Comparison Before and After Mixing‑Defoaming


Comparison Item

Before Mixing‑Defoaming

After Mixing‑Defoaming

Bubble Content

Plenty of micro‑bubbles, uneven ink texture

Nanoscale bubbles fully removed, fine and homogeneous texture

Printing Performance

Pinholes, white spots and uneven ink tone

Pinhole‑free & spot‑free, uniform and full‑bodied ink color

Printability

Unstable fluidity, stringing and splashing

Stable fluidity, printability greatly improved

Drying Uniformity

Bubbles impair film‑forming, uneven drying

Uniform film formation and consistent drying

Adhesion

Discontinuous contact surface caused by bubbles, poor adhesion

Sufficient contact interface, strong adhesion

Batch‑to‑Batch Consistency

Unstable traditional deaeration, large batch deviation

Replicable parameters, reliable batch consistency


Proven Application Fields

• UV Ink (UV‑curable ink, UV offset ink, UV flexographic ink)

• Water‑Based Ink (Water‑based flexo ink, water‑based gravure ink, water‑based screen‑printing ink)

• Solvent‑Based Ink (Solvent‑based gravure ink, solvent‑based flexographic ink)

• Offset Ink (Sheet‑fed offset ink, web offset ink)

• Flexographic Ink (Flexo printing ink, narrow‑web flexo ink)

• Gravure Ink (Gravure printing ink)

• Screen‑Printing Ink (Screen ink, PCB screen‑printing ink, textile screen‑printing ink)

• Special‑Purpose Ink (Conductive ink, anti‑counterfeit ink, thermochromic ink, fluorescent ink)