QK3730 Wetting and Dispersing Agent

Name: QK3730 Wetting and Dispersing Agent
Brand: LIYANG New Chem

APEO-free dispersant built for carbon black and organic pigment in waterborne ink, inkjet and leather coatings.

Positioned against TEGO 760W

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QK3730 Wetting and Dispersing Agent identification panel showing model code, chemistry family and the grade it is positioned against

Product Overview

QK3730 is a polymer dispersant free of APEO-class hazardous substances, carrying non-ionic modified pigment affinity groups. It stabilises organic pigment in waterborne coatings, waterborne inks and pigment concentrates, and it is written specifically around carbon black: it prevents thickening, holds jetness and strongly reduces grind viscosity.

Key Benefits

APEO-free, which matters for ink and leather supply chains with restricted substance lists
Strong anti-thickening behaviour on carbon black pastes
Raises gloss, tinting strength, transparency and hiding power
Strongly reduces grind viscosity, so pigment loading can go up
Suitable for inkjet as well as conventional ink

At A Glance

Chemistry: APEO-free non-ionic modified polymer
Family: Wetting and Dispersing
Category: Coating Additives
Positioned against: TEGO 760W
Appearance reference: Yellow transparent liquid

Who It Is For

Ink and inkjet formulators with APEO restrictions
Leather coating producers
Concentrate makers fighting carbon black viscosity

Problems It Solves

Carbon black pastes that thicken to unusable viscosity in storage
APEO-containing dispersants blocked by a customer restricted substance list
Loss of jetness and transparency after let-down

Application Scenarios

Waterborne ink and inkjet ink
Carbon black concentrate that thickens on storage
Industrial coatings needing deep blacks
Leather coatings

Technical Features

APEO-free polymer with non-ionic modified pigment affinity groups
35% active in water, density approximately 1.0 g/cm3
Dispersed fully in water before it meets the pigment
24-month shelf life stored at 15-35C

Specification

Typical Data And Dosage

Typical values are indicative of the product and are not release specifications. Figures are reproduced from the manufacturer data sheet.

Chemical composition	Polymer with non-ionic modified pigment affinity groups, APEO-free
Appearance	Yellow transparent liquid
Active ingredient	35%
Density	Approximately 1.0 g/cm3
Solvent	Water
Storage	15-35C, out of direct sunlight
Shelf life	24 months from production date
Packing	25 kg / 200 kg

Recommended Dosage

All dispersant and additive dosage figures below are quoted exactly as the source data sheet quotes them. Dispersant figures are percentages on pigment weight, not on the total batch. The published values are empirical, so confirm the optimum with a dosage ladder in your own system.

Inorganic pigments	4-20%
Organic pigments	10-50%
Carbon black	40-80%

Use Guide

Disperse the additive fully and evenly in water first, then add it to the mill base and grind.
Keep drums out of direct sunlight between 15 and 35C.
Dosage is on pigment weight, not on the batch.
Avoid direct skin contact; rinse with soap and water if it occurs.

Quality Control On Your Side

Measure paste viscosity after 7 and 28 days at 40C to confirm anti-thickening
Check jetness and blue undertone on carbon black draw-downs
Confirm APEO-free status in your own incoming documentation

Comparison

How It Compares With The Alternatives

Technical comparison against other ways of solving the same problem. Nothing here is a performance claim against a named commercial product.

QK3755	QK3730 is the carbon black and inkjet specialist; QK3755 is the broader resin-free concentrate grade.
QK3740	QK3740 is 100% active general purpose; QK3730 is 35% active with the APEO-free declaration and anti-thickening focus.
Nonylphenol ethoxylate dispersant	Free of APEO-class substances, so it clears restricted substance lists that block NPE.

Customisation And Supply

Packing as published on this page; other pack sizes are confirmed per order
Technical data sheet and, where available, safety data sheet supplied by email on request
Tailor-made products can be discussed; send the property you need and the system it goes into
Shipped from Tianjin, China by sea or air

Questions

QK3730 Wetting and Dispersing Agent Questions

Is QK3730 APEO-free?

Yes. The data sheet states it is a polymer dispersant without APEO-class environmentally hazardous substances.

Why is it recommended for carbon black?

It has excellent ability to prevent thickening and strongly reduces grind viscosity, which are the two things that usually limit a carbon black paste.

Can it be used in inkjet ink?

Yes. Inkjet ink is listed among the application fields.

How should it be added?

Disperse it evenly in water first, then add to the mill base and grind.