Printing Ink Is a Slurry Colloid Composed of Color Material, Binder, Filler and Other Components Evenly Mixed. As a Kind of Viscous Fluid Ink, Due to the Different Properties of Its Varieties Are Also Different, That Is, There Are Thick Thin Points, Viscidity Difference, Fast Dry and Slow Dry and so On. Therefore, The Correct Understanding and Understanding of the Composition of Ink in the Role of Ink, For the Accurate Adjustment of Ink Characteristics, To Meet a Variety of Printing Conditions, Improve the Quality of Product Printing Has Very Important Significance.
First, What Kind of Connection Role Can the Color Play in the Ink
All Colors Include Pigments and Dyes. The Colored Materials Used in Printing Ink Are Usually Pigments, But Also Some Dyes, Which Are Very Fine Particles of Colored Materials. Pigments Are Generally Insoluble in Water and Insoluble in Binders. Most of Them Are Suspended in Solution, While Dyes Are Generally Soluble in Binders.
Pigment Has a Great Impact on the Performance of Ink, Ink Relative Density, Transparency, Heat Resistance, Light Resistance and Chemical Resistance, And so On, Are Related to the Pigment. The Role of Pigment in Ink Is Obvious, Its Color Determines the Hue of Ink; Its Dosage Size Determines the Concentration of Ink; Its Use to Ink with a Certain Consistency and Other Physical Properties; Its Use in a Certain Extent Affects the Drying of Ink, Oxidation Polymerization Drying Based Ink Performance Is Particularly Prominent. In Addition, The Durability of the Ink in All Aspects Is Also Determined by the Pigment.
Therefore, Due to Different Ink Varieties and Uses, Pigment Is Also Different, Which Requires That Printing Ink Should Be Selected According to Product Use and Process Characteristics. For Example, Printing Packaging Products with High-Speed Multi-color Printing Press Should Be Selected Bright, Fast Solid and Wear-Resistant Ink to Ensure Printing Quality.
Two, The Link in the Ink and Play What Role
The Binder Is a Kind of Fluid with Certain Viscosity and Viscosity, And Its Function Is Manifold. As a Pigment Carrier, It Can Mix and Link Solid Particles Such as Powdered Pigments, And Make the Bonded Pigments Eventually Adhere to the Print.
The Bonding Material Affects and Determines the Fixing Speed, Drying Speed and Drying Type of Ink at the Same Time, And Can Give the Ink with a Certain Gloss, Friction Resistance, Yellowing Resistance and Impact Resistance and Other Physical Properties, And to a Large Extent Determines the Viscosity, Viscosity, Yield Value and Fluidity of the Ink, So, High Quality Ink from High Quality Bonding Material.
If the Bonding Material Preparation or Production Process Is Not Appropriate, The Ink Printing Not Only Lacks Bright, Good Luster Color, But Also Will Cause Paste, Dirty, Through Printing, Paper Wool and Ink and Other Chain Quality Failures, Bring Certain Obstacles to the Normal Printing. Therefore, Linking Material Is a Factor That Greatly Affects the Quality of Ink.
Three, What Is the Meaning of Filling Material at This Time
The Filling Material Is a Kind of White Solid Material Which Can Be Evenly and Well Dispersed in the Bonding Material. It Is a Fine Powder. The Filling Material in the Bonding Material After Mixing and Grinding into a Slurry, Some Are Transparent, Some Are Opaque. The Commonly Used Fillers Are Aluminum Hydroxide, Potassium Sulfate, Magnesium Carbonate and Calcium Carbonate.
Filling Material in Ink on the One Hand Can Play a Role in Adjusting Ink Consistency, Viscosity, Viscosity, Fluidity and Yield Value of Ink, On the Other Hand Can Play a Role in Adjusting Ink Concentration, That Is to Say, When the Ink Concentration Is Large Color Depth, Add Filling Material Can Achieve Dilution Effect.
Although the Filling Material in Ink Has an Auxiliary Role, But Its Performance Has Many Requirements with the Pigment Is Consistent, In the Oxidation Polymerization Drying Ink It Also Plays a Role in the Dry.
Four, The Amount of Additives in the Ink Can Not Be Ignored
For Printing Operators, The Printing of Ink Is Good, A Can Can Be Put into Use, It Is of Course the Most Convenient and Save Trouble. However, Due to the Differences in the Temperature and Humidity of the Printing Environment, The Characteristics of Printing Materials and Printing Process Conditions, Such as the Water Content and Ph Value of Paper and the Speed of the Printing Machine, Overprinting Methods, And Although the Ink Variety Is Diverse, But Each Ink Used Pigment, Bonding Material and the Proportion of Filling Material Is Almost Constant, Often Can Not Meet the Requirements of Various Conditions of Printing Suitability. Therefore, From the Point of View of Improving Printing Efficiency and Quality, According to the Changing Printing Conditions, The Appropriate Addition of Some Additives in the Selected Ink Is Beneficial to Ensure Normal Printing.
5. What Does the Ink Oil Improve in Printing
Commonly Used Toner Oils Are Number