Wet‑Strength Agent: Introduction and International News

1. Introduction

Wet‑strength agent is a common papermaking auxiliary. Its core function is to keep paper from breaking easily and retain strength when exposed to water. The mainstream product is formaldehyde‑free PAE resin, which is eco‑friendly and widely applicable. It is extensively used in cup‑stock paper, paper towels, food packaging paper and medical paper. At present, the industry is vigorously developing degradable bio‑based green wet‑strength agents.

2. Latest International News (2025‑2026)

1. Tighter regulations: The EU and the United States have updated supervision to strictly control harmful residues in wet‑strength agents. Products exceeding limits are banned from the market, forcing enterprises to upgrade production processes.

2. Corporate capacity expansion: Global chemical giants including Kemira and BASF are expanding their Asia‑Pacific bases, focusing on low‑residue and environment‑friendly wet‑strength agents.

3. Industry trend: The global market maintains steady growth. Technologies focus on low residue, biodegradability and recyclability to meet the demands of green papermaking and circular economy.