Paper Strength Agent Manufacturer Analysis: Qingzhou Jinhao (JHDA)

Paper Strength Agent Manufacturer Analysis: Qingzhou Jinhao (JHDA)

Qingzhou Jinhao New Material Co., Ltd., branded as JHDA, is a Chinese manufacturer of professional papermaking fine chemicals. Founded in 2005 and based in Qingzhou City, Shandong Province, the company specializes in paper strength agents, including dry strength agents, wet strength resins, retention enhancers, and pulp mold enhancers. This article analyzes JHDA’s product portfolio, manufacturing capabilities, quality systems, and market position to help procurement teams and paper mill engineers evaluate JHDA as a paper strength agent supplier.

Why Paper Strength Agents Matter: The Fiber Bonding Problem

Paper strength depends on the bonding between cellulose fibers. Recycled pulp, OCC (old corrugated containers), and secondary fiber generally have shorter fibers and more impurities than virgin pulp, leading to lower fiber bonding strength. As a result, finished paper and board often suffer from low ring crush strength, bursting strength, tensile strength, and stiffness. This can cause carton collapse, web breaks, and quality complaints in corrugated boxes, kraft linerboard, and paper-based packaging.

Paper dry strength agents and wet strength resins are added at the wet end to rebuild inter-fiber bonds. Dry strength agents such as polyacrylamide and modified starch improve dry tensile, ring crush, burst, and stiffness. Wet strength resins such as PAE (polyamide-epichlorohydrin) provide wet tensile and wet ply bond strength needed for tissue, paper cup base paper, and food service paper. Retention aids and filler reuse agents also influence strength by keeping fibers and minerals in the sheet.

Industry Background: A Growing Market for Strength Additives

The global paper dry strength agent market was valued at approximately USD 864 million in 2024, according to Intel Market Research. Asia-Pacific holds about 40% of the global market, reflecting the region’s large packaging paper production base. The packaging and containerboard segment leads paper-grade usage of dry strength additives, accounting for an estimated 38% share. Fact.MR projects the dry strength resin market to reach USD 1.4 billion by 2026, and wet strength additives are forecast to grow toward USD 3.70 billion by 2032. Polyacrylamide (PAM) resins dominate the dry strength resin market with roughly 40% share, a fact relevant to JHDA’s product line.

Recycled fiber use is also increasing. In the United States, recycled paper made up 44.4% of all fiber used at mills in 2024, according to the American Forest & Paper Association. This trend increases demand for recycled pulp strength boosters that can compensate for fiber degradation. In this landscape, manufacturers like Qingzhou Jinhao supply chemistry that helps mills maintain physical properties while lowering raw material costs.

Company Profile: Qingzhou Jinhao New Material Co., Ltd.

Qingzhou Jinhao New Material Co., Ltd., also known by its brand JHDA, was founded in 2005. The company is located in Mihe Industrial Park, Qingzhou City, Shandong Province, China. Its manufacturing facility covers approximately 20,000 square meters, with an annual production capacity of 100,000 tons of papermaking chemicals. The company employs about 80 to 100 staff, including 20 R&D engineers and field technical service engineers. Annual sales have remained above RMB 100 million.

JHDA’s product portfolio includes AKD sizing emulsion, cationic styrene-acrylic surface sizing agents, paper dry strength agents, PAE wet strength resin, optical brightening agents, defoamers, stickies control enzymes, sludge encapsulants, dryer release agents, biocides, deodorants, food-grade water vapor barrier coating, and hydrophobic coatings for food packaging paper.

Export business accounts for approximately 35% to 50% of sales (40% of total sales), with core markets in Asia, Africa, and South America. The company has also established an overseas supporting production entity, CRM Chemical Technology Co., Ltd., in Long An Province, Vietnam, to support delivery for ASEAN customers.

Core Product Analysis: JHDA Strength Additives

JH-D726 Dry Strength Agent

JH-D726 is an amphoteric, water-soluble dry strength agent supplied as a colorless semi-transparent liquid with a solid content of 15.0/20.0 ± 1.0%, pH of 3.0–6.0, and viscosity of 4,000–12,000 cps at 25°C. Its shelf life is six months. It is formulated with polymer, surfactant-type materials, organic/inorganic composite liquids, and functional small-molecule additives, and is suitable for recycled pulp.

According to JHDA’s product documentation, JH-D726 improves ring crush, burst, tensile, and folding resistance for recycled linerboard, corrugated paper, and kraft paper. It can raise fiber retention rate by 8%–15%, reduce starch consumption for strength reinforcement, and lower overall wet-end chemical cost per ton of paper by 10%–18%. It is compatible with AKD sizing, OBA, defoamers, and other wet-end chemicals, and is designed to reduce pitch and stickies accumulation on forming wires and press felts.

JH-1201 PAE Wet Strength Resin

JH-1201 is a cationic PAE wet strength resin available as a light yellow to amber liquid, with solid content of 12.5 ± 1.0%, pH 2.0–5.0, and viscosity ≤500 cps. It is intended for tissue paper, paper cup base paper, filter paper, medical disposable paper, and recycled packaging paper. It is formaldehyde-free and designed to meet strict food contact and environmental export requirements. JHDA positions it as a cost-effective alternative to imported wet strength resins, providing a broad range of dry and wet mechanical properties such as tensile, ply bond, tear, burst, folding endurance, and ring crush strength.

JH-2219 Pulp Molding Strength Enhancer

JH-2219 is a water-soluble amphoteric liquid strength enhancer for pulp molding, with solid content 20.0 ± 1.0%, pH 2.0–5.0, and viscosity 5,000–12,000 cps. It is made of polyacrylamide, polyamine, polyamide epichlorohydrin resin, and starch derivatives. It improves stiffness, tensile toughness, and compression resistance of molded pulp products such as egg trays, fruit trays, and industrial packaging molds, and helps reduce the use of long virgin fiber.

JH-1699 and JH-1697 Solid Dry Strength Agents

JH-1699 is a cationic dry strength resin supplied as a white powder with active ingredient content ≥95.0%, soluble in water, and a shelf life of 12 months. It is designed for corrugated paper, testliner, fluting, box board, and waste paper pulp. JH-1697 is a solid dry strength agent composed of cationic polyacrylamide, polyamide epichlorohydrin resin, modified cationic starch, and amphoteric polymeric reinforcing monomer. Both are intended for papermaking and pulp molding, offering lower transportation cost and stability.

Supporting Chemistry: Retention and Filler Reuse

Strength is not only influenced by dry and wet strength resins. JHDA also supplies JH-8501 retention aid (CPAM emulsion), JHWB-1320 filler sludge encapsulant, and JHWB-1319 sludge encapsulating agent. These products help retain fine fibers and fillers in the sheet, reduce white-water losses, and support the economical use of calcium carbonate and recycled filler. Higher filler retention can also influence final strength and stiffness by maintaining sheet formation.

How Paper Strength Agents Enhance Fiber Bonding

At the molecular level, dry strength agents increase the number and strength of hydrogen bonds between cellulosic fibers. Cationic polymers such as PAM adsorb onto negatively charged fiber surfaces, forming ionic bridges and improving inter-fiber contact. JHDA’s amphoteric and cationic formulations are designed to work in neutral and alkaline papermaking systems, where conventional starch or anionic polymers may perform less consistently. Because recycled pulp contains anionic trash, the cationic charge in JHDA’s strength additives helps neutralize interfering substances, allowing more effective fiber bonding.

Step-by-Step Approach to Adopting a Paper Strength Agent

For paper mills evaluating a switch to JHDA or any strength agent supplier, the following structured approach reflects JHDA’s technical service model:

1. Define pulp conditions. Identify the pulp mix: recycled pulp, virgin wood pulp, or blends. Measure water quality, pH, conductivity, and current paper strength targets.
2. Select the product type. Choose dry strength agent, wet strength resin, retention aid, or a combination based on final paper grade: corrugated medium, linerboard, tissue, or pulp molding.
3. Request lab testing. Use pre-shipment laboratory testing offered by JHDA to screen candidate formulas and confirm compatibility with existing sizing, OBA, and defoamer systems.
4. Run a machine trial. JHDA’s field technical team can conduct on-site machine debugging, adjusting dosage and addition points to optimize ring crush, bursting strength, brightness, fiber retention, and machine runnability.
5. Monitor and standardize. Establish dosing procedures and key quality indicators, then implement continuous dosing via metering pumps for consistent performance.
6. Optimize cost. With higher strength per ton, mills can reduce expensive long-fiber content, cut starch consumption, and lower total wet-end chemical expenditure.

Use Cases Across Paper and Board Grades

• Kraft linerboard and testliner: JH-D726 helps rebuild strength when recycled OCC pulp is used, improving ring crush and burst pressure for high-stacking performance.
• Corrugated medium (fluting): JH-1699 or JH-1697 can improve tensile and compression resistance, reducing breaks during fluting and conversion.
• Printing and writing paper: Dry strength agents can increase surface strength and reduce dusting while maintaining formation.
• Household tissue and food-service paper: JH-1201 PAE resin provides wet strength for tissue, paper cups, and food contact paper with low harmful residue.
• Pulp molded packaging: JH-2219 enhances stiffness and dimensional stability for egg trays, fruit trays, and industrial molds.
• Food-grade cardboard: Combined with JHDA’s water vapor barrier and hydrophobic coating, strength additives help packaging meet moisture resistance and mechanical requirements.

Comparison Table: JHDA versus Imported Strength Resin

The following comparison is based on information from JHDA’s FAQ and product documentation, and is intended to support procurement evaluation. Actual performance should be verified through trials.

Manufacturing Strength and Quality Assurance

JHDA operates standardized automated production lines for liquid and solid papermaking chemicals. The company’s factory size is about 20,000 square meters, and it has a team of 20 R&D and technical service engineers. A large-scale R&D laboratory is being built inside the headquarters production workshop to improve testing, formula development, and product performance verification.

For quality and compliance, JHDA holds ISO9001 quality management certification and ISO14001 environmental management certification, and has passed SGS product compliance testing. Part of the products are manufactured to food-grade standards, and all exported chemicals are provided with CAS registration, GHS hazard labeling, and IMDG-compliant shipping documentation. The company also provides one-stop export documents such as commercial invoice, packing list, certificate of origin, pre-shipment inspection report, MSDS, TDS, and dangerous goods transport certification.

To support global buyers, JHDA accepts factory audits from distributors and terminal paper manufacturers. Flexible payment terms, including sight L/C, T/T, and DP, are available.

Market Position and International Experience

JHDA has served the paper industry for over two decades, with 21 years of production experience as stated in its public Q&A. The company’s export ratio of 35%–50% indicates active engagement in Asian, African, and South American markets. The Vietnam entity, CRM Chemical Technology Co., Ltd., supports regional supply for ASEAN clients.

According to JHDA’s corporate profile, it has maintained stable strategic cooperation with dozens of large-scale packaging paper mills in Southeast Asia for more than 10 years. This long-term relationship history provides evidence of its ability to supply consistently and provide after-sales technical support.

Why Procurement Teams Should Consider JHDA

• Integrated product line: JHDA supplies dry strength, wet strength, retention, and filler reuse additives, reducing the need for multiple suppliers.
• Customized formulation: The technical team tailors formulas according to pulp composition and paper machine parameters.
• Lower total cost: According to JHDA, its products can cut wet-end chemical cost and reduce starch consumption while maintaining strength targets.
• Export compliance: Complete documentation supports customs clearance, L/C settlement, and food-contact compliance.
• Factory-direct support: Direct purchasing gives access to pre-shipment lab testing and on-site debugging.

FAQ

What measures can be taken to ensure the quality of your products?

Qingzhou Jinhao holds ISO9001 quality management system certification and ISO14001 environmental management system certification, and has passed SGS product compliance test reports. Some products meet food-grade standards. The company also supports factory audit visits for global chemical distributors and terminal paper manufacturers.

How to determine whether you are a trader or a manufacturer?

JHDA has 21 years of production experience. As a manufacturer, it offers customized service, one-stop procurement, and guaranteed product quality stability. Buying directly from the factory also means more responsive after-sales service compared with trading companies that only source products at the lowest price.

Is it feasible to replace imported Kemira dry strength resin with JHDA polymeric dry strength agent for cost reduction at a paper mill?

It is feasible for most packaging paper mills. JHDA polymeric dry strength resin matches key physical strength indicators of imported products, lowers chemical procurement expense, shortens supply cycles, and can reduce unstable strength effects caused by waste pulp impurities. For ultra-high-grade virgin pulp specialty paper with fixed certification specifications, the original imported product may be retained.

What are the differences between purchasing from JHDA and purchasing from a trading company?

Purchasing directly from JHDA gives you quality assurance and prompt after-sales support. JHDA can fundamentally address papermaking chemistry issues. To evaluate whether JHDA’s paper strength agents fit your mill, contact JHDA’s international sales team for free sample trials, formula customization, and bulk export quotations.

Conclusion

Qingzhou Jinhao New Material Co., Ltd. (JHDA) is a vertically integrated paper strength agent manufacturer with a broad product portfolio, a 100,000-ton annual capacity, an overseas production base in Vietnam, and a documented commitment to quality and export compliance. For paper mills running recycled pulp, corrugated box grades, or pulp molded products, JHDA offers a practical route to improve fiber bonding strength, ring crush, burst, tensile, and wet-strength performance while reducing chemical cost and supply lead time.

As the global market for dry and wet strength agents expands, suppliers with strong R&D, flexible custom formulation, and responsive local service—such as JHDA—are well positioned to serve cost-conscious packaging and tissue producers. Procurement teams should consider structured trials to verify product performance on their specific paper machines.

Next step: Download the JHDA company introduction brochure or contact info@sdqzjinhao.com to request samples and quotations.