1. Product Introduction

Styrene‑acrylic surface sizing agent is a water‑based emulsion chemical specially for papermaking. It is usually compounded with starch for paper surface sizing.

Core functions: Improve paper surface strength, reduce linting and dusting, optimize printability, slightly enhance water resistance. Suitable for high‑speed paper machines, widely used in cardboard, containerboard, cultural paper, etc.

Main advantages & disadvantages: Excellent film‑forming property and adhesion, good printing performance; weaker water resistance compared with AKD/ASA, raw material prices fluctuate greatly.

2. Latest Industry News (2025‑2026)

1. Technology upgrade: High‑waste‑pulp‑special styrene‑acrylic surface sizing agent is widely promoted in the industry. It solves system instability and fluctuating sizing performance in recycled‑paper production, and adapts to high‑proportion waste‑fiber production.

2. Cost & capacity: Fluctuations of upstream raw material prices push up the average product price moderately. Leading enterprises cut costs via process optimization. Small‑ and medium‑sized manufacturers face fierce competition, and low‑end homogeneous capacity is gradually phased out.

3. Growing high‑end demand: Digital printing, food packaging and high‑end e‑commerce packaging drive rising demand for high‑performance, low‑odor, low‑VOC compliant styrene‑acrylic surface sizing agent.

4. Green development trend: The industry focuses on self‑crosslinking and bio‑based modified products, together with carbon footprint assessment to meet papermakers’ ESG requirements.