Import Dry Strength Agent — Buy in Bulk from Supplier in China

The dry strength agent from Hubei Jiayun Chemical Technology Co., Ltd. is a synthetic polymer additive designed to enhance internal bonding in paper and pulp fibers during sheet formation. It is used to increase tensile, burst, and tear strength in both dry and wet states, improving end-product durability without altering paper appearance. The product is formulated for compatibility with hardwood and softwood pulps, and is applied at dosages ranging from 0.1% to 0.5% on dry fiber weight.

This additive is not a resin-based sizing agent but a cationic polymer system, likely polyamide-epichlorohydrin or polyacrylamide-based, commonly used in papermaking. It improves fiber-to-fiber bonding through electrostatic interaction, not surface coating. Typical industry formulations are water-soluble, non-toxic, and meet ISO 12625 and SGS environmental guidelines. The product does not contain formaldehyde or other regulated aldehydes, based on its stated compliance.

End users include manufacturers of corrugated boxes, tissue paper, printing paper, and specialty packaging. The additive reduces the need for expensive hardwood pulp by improving strength from lower-cost fibers. Trade terms are not specified in the listing, but standard practice involves FOB or CIF from Chinese ports like Shanghai or Ningbo. Buyers should confirm solids content, pH, and viscosity before use, as these affect application efficiency.

Hubei Jiayun Chemical Technology Co., Ltd. is an imported supplier based in Xiantao, Hubei Province, China, with a harbor trust tier indicating basic platform verification. The listing provides an address but no facility photos, certifications, or production capacity. The supplier’s profile shows no response rate or average response time, suggesting minimal buyer interaction. Their core export product is dry strength agent, with no indication of other chemical lines or R&D capabilities.

The listing claims compliance with ISO and SGS standards but provides no certificate numbers or audit details. There is no mention of production method, raw material sources, or quality control protocols. Buyers should request a technical data sheet with viscosity, pH, and solids content curves. The absence of response metrics implies a transactional, low-touch sourcing model suitable for buyers with established chemical procurement systems.