About Us
SD Water-based Ink, originating from Shanghai Zongte Chemical Co., Ltd., with 27 years of deep accumulation in water-based resin R&D, production, and sales, has grown through continuous innovative manufacturing. Relying on the dual-engine model of 'Shanghai R&D Center + Innovative Manufacturing Base', we connect the entire chain from basic material research to industrial application, building a full range of product systems covering surface printing, inner printing, compounding, and varnish with independent core technologies.
Our mission is to become a systematic green printing enabler, co-printing a sustainable future with industry peers.
With 27 years of expertise in water-based resin technology, we are committed to driving the green printing revolution and providing sustainable solutions for the printing industry.

Core Advantages
Technology Advantage
Leading the ink market into a new era of 'oil-to-water' transformation
Quality Assurance
Trusted by numerous customers, quality guaranteed
Wide Application
Covering packaging printing, textile printing, publication printing and other fields
Cost Advantage
Reasonable pricing, driving sustainable development
Logistics & Distribution
Self-built logistics, quick response
Experience Advantage
Hundreds of targeted customers, thousands of successful cases
Management Advantage
Flexible service handling procedures
After-sales Advantage
Professional service experience, industry standardization practitioner
Certifications & Honors
EU 10/2011, FDA, GB 4806.14-2023, SGS — Internationally certified for food safety and environmental compliance
Brand Story
SD Water-based Ink is not just a brand, but a commitment to a sunny future. This commitment stems from the belief of 'Sunny Day' and is rooted in our pursuit of a better world.
We believe that true printing should nourish all things like sunlight, green and healthy. Therefore, we use technology to restore natural colors, so that every drop of water-based ink carries a promise of friendliness to the earth; we focus on water-based innovation, making every printing a protection for a brilliant tomorrow.
'Sunny Day' is the source of all our actions - it symbolizes vitality, safety and lasting beauty, and represents our mission to bring clean and bright days to the industry. SD Water-based Ink is willing to join hands with you to print every day full of sunshine, making every presentation radiate vitality and shine on a warm and healthy future.
Our Vision
To become a global leader in water-based ink technology, driving sustainable printing practices worldwide.
Our Values
Innovation, sustainability, quality, and customer-centricity are at the core of everything we do.
Our Commitment
We are committed to reducing environmental impact through eco-friendly products and processes.