Predicting Ink Performance

Presented by Victor Dahleen

Introduction

Raw Materials

Manufacturing Methods

Laboratory Testing

Ink & Water Balance

The Role Of Printing InkColor, Definition & Contrast

Provides Decorative Appeal

Provides End Use Functionality

Packaging, POP, Posters, Inserts, Magazines, Catalogs, Newspapers

Basic Raw Materials for News Ink

ADDITIVES

RESIN

PIGMENT

OIL & SOLVENT

INK

PLASTICS

PAINTS

TIRES

CANDLES

COMPETITION FOR RAW MATERIALS

PIGMENTS

PIGMENTS

Global Resource

Water Intensive Process

Organic Materials

RESIN / VARNISH

NATURAL RESINSTREES (Gum Rosin)

PAPER MANUFACTURING

BY PRODUCT

HYDROCARBONS

RESINS

PETROLEUM / SOYBEAN OIL

Crude Oil Chart

LIQUEFIED PETROLEUM GASGASOLINE DIESEL FUELLUBRICANTSMOTOR OILSASPHALTPARAFFIN WAX

Vegetable OilsDRYING

OILSSEMI-

DRYING OILS

NON-DRYING

OILSTUNG OIL SOYBEAN OIL OLIVE OIL

LINSEED OIL SAFFLOWER OIL PALM OIL

DEHYDRATED CASTOR

CORN OIL CASTOR OIL

COTTONSEED OIL COCOA BUTTER

SUNFLOWER OIL

Mixing Ink

MIXING BLADESCO-AXLE MIXING BLADE

HI SPEED SAW TOOTH

Quality Control Criteria

• Tack • Strength/Shade• Fineness of Grind• Structure/Body/Flow• Water Pickup• Transfer

INKOMETER

Flow Plate

INK MILLINGHorizontal Media Mill

Hi Speed Rotor

3 ROLLER MILL

Electron Microscope

WATER PICK UP TESTERS

LITHOTRONIC DUKE WPT

Ink & Water

• Duke water pick up tester is used extensively as quality control tool for ink

• Inks typically have a QC specification between 40% - 70% water pick up

Water Pick-Up ChartWater Emulsification (%)

0%

10%

20%

30%

40%

50%

60%

Cyan

Magenta

Yellow

Black

Cyan 32% 46% 52% 54% 56%

Magenta 28% 38% 44% 50% 54%

Yellow 30% 42% 46% 46% 46%

Black 27% 36% 43% 52% 55%

2 mins. 4 mins. 6 mins. 8 mins. 10 mins.

PRESS CONTROLS

Pressroom Consumables

Plates

Blankets

Paper

Ink

Fountain Solution

DOT GAIN CURVE

PHOTOMICROGRAPH 40% SCREEN

NO ADJUSTMENTS ADJUSTED

Thank You