Offset Inks

SunColour sheet-fed offset inks are formulated to deliver high color strength, effective ink transfer, sharp halftone dot definition, and stable performance at different printing speeds. These products are available for printing on various types of paper, paperboard, metallized surfaces, and other substrates used in the printing and packaging industries.

Features of SunColour Offset Inks

Good color strength and print density

Proper ink-water balance

Uniform ink transfer even at high printing speeds

Sharp halftone dots and fine print detail

Ink selection tailored to paper, paperboard, and other printing substrates

Supply of additives, fountain solutions, varnishes, and offset printing auxiliaries

SHEET-FED OFFSET INKS

Sheet-Fed Offset Ink Series

Low-Odor, Low-Migration Ink for Food Packaging

Printing Substrates	Gloss-coated paper, matte-coated paper, kraft paper, and paperboard
Application	Printing on the outer surface of primary food packaging for indirect-contact applications
Features	Low odor, low migration, very high color strength, and good setting on paper
Formulation	Mineral-oil-free and made using renewable plant-based materials

The high color strength of this series allows printing with a thinner ink film and helps improve drying. These inks are designed to avoid adversely affecting the sensory properties of food packaging.

Multipurpose Offset Ink

Printing Substrates	Various types of gloss-coated and matte-coated paper, kraft paper, and paperboard
Formulation	Based on vegetable and mineral oils
Features	High color strength, good rub resistance, fast drying, and uniform transfer
Fountain Solution System	Suitable for reduced-alcohol or alcohol-free systems

This range is suitable for a wide variety of print jobs, short runs, and fast production processes, and sets quickly on the substrate after printing.

Vegetable-Based Process Inks

Product Type	Gloss	Rub Resistance	Key Features
High-Strength Process Ink	Very Good	Very Good	Vegetable-based formulation, free from cobalt driers and mineral oils, with excellent halftone dot definition and fast drying
Ink for Matte-Coated Paper	Very Good	Very Good	Designed for matte paper, with high color strength, fast setting, and effective transfer at high speeds
Economical Process Ink	Good	Good	Suitable for different types of paper and paperboard, fast drying, and compatible with UV varnishing
General-Purpose Process Ink	Good	Good	Proper ink-water balance, good printability, and the ability to leave ink in the ink duct for up to 48 hours

Specialty Sheet-Fed Offset Inks

Offset Ink for Non-Absorbent and Metallized Substrates

Main Substrates	Plastic foil, holographic paper, aluminum-laminated paperboard, metallized paper, and non-absorbent papers
Gloss	Good
Rub Resistance	Good
Setting on Substrate	Good

The printing surface must be completely clean and free of grease and dust. To assist drying, small printed stacks and spray powder are recommended. Using 8–12% offset printing alcohol may also improve ink-water balance and drying.

PL Series Pantone and Spot Color Inks

Application	Formulating a wide range of Pantone and spot colors
Printing Substrates	Gloss-coated and matte-coated paper, kraft paper, paperboard, and suitable metallized surfaces
Features	High color strength, good gloss, and very good rub and scratch resistance
Printing Performance	Proper ink-water balance, sharp halftone dot definition, fast drying, and effective transfer at high speeds

Fluorescent Inks and Pigment Paste System

Product Type	Application	Features
Fluorescent Inks	Pantone fluorescent colors 801–809	Very good printability, sharp halftone dot definition, and good rub resistance
Pigment Paste System	Formulating various Pantone and spot colors to the required formula	Vegetable-based, high color strength, free from cobalt driers, with good scratch and rub resistance

Metallic Offset Inks

Single-component metallic inks are used to create silver and gold effects in offset printing. High metallic pigment content and a suitable varnish provide attractive brilliance and effective transfer to the printed surface.

Pantone Code	Color Shade	Gloss	Rub Resistance	Setting
SILVER	Silver	Good	Good	Good
PAN 877	Silver	Very Good	Very Good	Very Good
GOLD	Gold	Good	Good	Good
PAN 871	Gold	Very Good	Very Good	Very Good
PAN 872	Gold	Very Good	Very Good	Very Good
PAN 873 / 874 / 875	Gold	Good	Good	Good

These inks can be used on conventional printing presses and systems with alcohol-based dampening, and are suitable for a range of uncoated and lightly or heavily coated paper and paperboard.

Offset Ink Additives

Offset ink additives are used to adjust viscosity, reduce tack, control ink behavior, and improve drying performance.

Additive Name	Maximum Dosage	Application
Ink-Reducing Oil	1–4%	Thins the ink and reduces tack and viscosity to address problems such as paper picking or surface lifting
Tack-Reducing Gel	2–5%	Reduces and adjusts tack without adversely affecting the ink's rheological behavior
Anti-Tack Paste	2–5%	Adjusts ink tack and helps prevent picking, linting, and ink buildup
Liquid Drier	1–2%	Accelerates the drying of slow-drying or oxidatively drying inks
Paste Drier	1–2%	Improves ink drying through controlled blending
Cobalt-Free Liquid Drier	1–2%	Accelerates drying with a cobalt-free formulation
Anti-Skinning Agent	According to application conditions	Prevents ink from drying on rollers and forming a skin in the ink duct during press stoppages

Note: Excessive use of driers may cause ink to dry on press cylinders or rollers. The precise dosage should be determined according to ink type, printing substrate, and press conditions.

Offset Fountain Solutions

Fountain solutions help control ink-water balance, maintain print quality, and ensure stable sheet-fed offset press performance.

Product Name	System Type	Dosage
Sheet-Fed Aqua	IPA-containing system	Approximately 2% at water hardness 12 dH and 3% at 18 dH
SF Alcohol-Free Fountain Solution	IPA-free or reduced-IPA	Maximum 3–4%
Offset Fountain Solution	IPA-free or reduced-IPA	Maximum 2–4%

Offset Printing Alcohol: An additive for alcohol-based dampening systems on sheet-fed offset presses, with a recommended dosage of 8–12%.

Offset Varnishes

Water-Based Varnishes

Product Name	Viscosity at 23°C	Features
Water-Based Overprint Varnish	40–45 seconds DIN 4	Protects the printed surface and provides an even coating
Water-Based Offset Varnish	50–60 seconds DIN 4	Fast drying, low odor, and good rub and scratch resistance
Gloss Varnish for Food Packaging	50–60 seconds DIN 4	Good gloss, fast drying, and low odor after drying
Matte Water-Based Varnish	50–60 seconds DIN 4	Produces a matte surface with good rub and scratch resistance
Extra-Matte Water-Based Varnish	50–60 seconds DIN 4	Creates a stronger matte effect and protects the printed surface
High-Gloss Water-Based Varnish	55–65 seconds DIN 4	High gloss, good UV light resistance, and reduced risk of sheets sticking together

Water-based varnishes can be used with conventional, two-roller, and anilox systems and offer good resistance to rubbing, scratching, and yellowing.

Oil-Based Varnishes

Product Types	Matte printing varnish, gloss printing varnish, and silver printing varnish
Application	Protects offset-printed surfaces and creates the desired final finish
Application Method	Suitable for wet-on-wet and wet-on-dry processes

Press Cleaning and Maintenance Products

Product Name	Application
Black Pack Roller Cleaning Paste	Removes ink, paper dust, and contamination from offset rollers and helps speed up color changes
Eco Wash Cleaning Solvent	Suitable for automatic cleaning systems on modern printing presses
Seltar Roller and Blanket Cleaner	A fast-drying solvent blend for cleaning blankets and rubber rollers and forming a protective layer after drying
Blanket Cleaning Solvent	Quickly cleans blankets and rubber rollers and helps protect their surfaces

TECHNICAL SUPPORT

Choosing the Right Offset Ink

Choosing the right offset ink requires evaluating the type of paper or paperboard, surface absorbency, press speed, dampening system, drying method, finishing processes, and the resistance required of the finished product.

SunColour specialists are available to provide technical advice on selecting inks, additives, fountain solutions, and varnishes suitable for specific printing conditions.

Products / Offset Inks

Report
1 114
0

admin on 4-10-2026, 20:50