Dry Strength Agent DS-66

Dry Strength Agent DS‑66 supplied by Huixian Tiankai Papermaking Agent Co., Ltd. is a colour‑less to pale‑yellow viscous liquid belonging to the amphoteric copolymer family. The product is delivered with a solid content of roughly 15%‑20% and exhibits a viscosity between 5 000 and 7 000 mPa·s measured at 25 °C. It is designed for use across a range of paper grades, including cardboard, bobbin, household and newsprint, where it enhances folding strength, bursting strength and ring‑crush resistance.

In the broader paper chemicals sector, typical solid content for dry strength agents ranges from 10% to 20%, and viscosity values commonly fall between 4 000 and 6 000 mPa·s for a 5% solution, making DS‑66 slightly higher but still within industry practice. The amphoteric nature of the polymer provides good retention of fiber fines and fillers, and it performs especially well in systems with higher anion impurity levels or electrolyte concentrations. Standard storage conditions call for a cool, dry environment, with a recommended shelf life of three months at ambient temperature.

The primary customers are paper mills producing corrugated board, packaging paper and specialty grades that require improved dry strength. The agent is usually added after diluting with water, with a recommended dosage of 8 kg to 20 kg per ton of paper, though the exact amount may be adjusted according to the specific production line. Packaging is offered in 1 000 kg plastic drums or 200 kg drums, and trade is conducted on a bulk basis; buyers should confirm the exact MOQ, lead time and Incoterms with the supplier before committing.

Huixian Tiankai Papermaking Agent Co., Ltd. is based in Zhoubo Village, Changcun Town, Mengdian Industrial Avenue, Xinxiang, Huixian, China. The company is identified with the harbour trust tier and carries an imported supplier tier, while its response rate is listed as 0.00, indicating that inquiries may need persistent follow‑up. Their profile lists bulk chemical export capability for paper‑making additives, but no specific details on production capacity or certifications are provided.

The firm promotes DS‑66 as a versatile dry strength agent that also improves retention of fiber fines and fillers, reducing the need for additional retention aids such as cationic starch. Although the listing specifies storage at room temperature and a three‑month shelf life, it does not disclose exact lead times, minimum order quantities or payment terms, so prospective buyers should request these details directly from the supplier.