PRODUCT INTRODUCTION
Dry Strength Agent and Wet Strength Agent are high-performance papermaking auxiliaries designed to improve paper strength properties. Dry strength agent enhances tensile strength, burst strength and internal bonding, while wet strength agent provides resistance to water penetration and maintains strength under wet conditions.
These products are widely used in paper machines, pulp preparation, paper forming, board production, tissue paper production and specialty paper production. They provide dry strength improvement, wet strength improvement, good stability, easy use, non-hazardous property and good compatibility.
Our dry strength agent and wet strength agent are produced under strict process control. They are available in different grades according to pulp type, paper grade, strength requirement, pH range, machine speed and application system. Each batch is inspected for appearance, solid content, viscosity, charge density, molecular weight, dry strength performance and wet strength performance before shipment.
We provide complete export documents including COA, TDS and SDS for quality traceability and customs compliance. Our technical team can recommend the most suitable grade and dosage according to your papermaking system, machine condition and destination country regulations.
POINTS FOR ATTENTION
ORDER INSTRUCTIONS
1. Confirm Papermaking System and Strength Requirement
Please inform us of your pulp type, paper grade, strength requirement, dry strength target, wet strength target, pH range, machine speed and production condition. We will recommend the most suitable dry strength agent and wet strength agent grade.
2. Trial Sample and Laboratory Evaluation
We can provide trial samples for dry strength test, wet strength test, formation test and compatibility evaluation. Customers may test tensile strength, burst strength, wet strength, paper formation and machine runnability. Sample COA and SDS will be attached.
3. Confirm Packaging, Quantity and Export Terms
Standard packing: 25kg bag / drum / carton, IBC tank. Custom shipping marks and pallet reinforcement available. Quotation under FOB / CIF / DDP is acceptable. Standard export data: HS Code 3824.9999, non-hazardous. Required customs documents: commercial invoice, packing list, bill of lading, certificate of origin, COA and SDS.
4. Delivery and After-sales Technical Support
Each batch is supplied with COA, TDS and SDS. Our technical team supports grade selection, dosage adjustment, process optimization and on-site guidance, and assists with import declaration information for destination ports.
Trial Order Tip:
For new customers, we recommend a small trial batch first to verify dry strength agent and wet strength agent performance in your actual papermaking system and pre-review export documents before bulk order.
For new customers, we recommend a small trial batch first to verify dry strength agent and wet strength agent performance in your actual papermaking system and pre-review export documents before bulk order.
USAGE NOTES
Dosage Control:
The recommended dosage varies by application, typically from 0.2% to 1.5%. Start from lower dosage and adjust according to strength test and production condition.
The recommended dosage varies by application, typically from 0.2% to 1.5%. Start from lower dosage and adjust according to strength test and production condition.
Adding Point Control:
Add dry strength agent and wet strength agent at suitable point according to pulp type, paper grade and formulation requirement. Ensure good mixing and uniform distribution.
Add dry strength agent and wet strength agent at suitable point according to pulp type, paper grade and formulation requirement. Ensure good mixing and uniform distribution.
Compatibility Check:
Before mass production, test compatibility with pulp, other additives and machine condition. Observe dry strength, wet strength, paper formation and machine runnability.
Before mass production, test compatibility with pulp, other additives and machine condition. Observe dry strength, wet strength, paper formation and machine runnability.
Process Condition Consideration:
Adjust grade and dosage according to pulp type, paper grade, strength requirement, pH range, machine speed and production condition. Control adding point, dosage and mixing condition properly.
Adjust grade and dosage according to pulp type, paper grade, strength requirement, pH range, machine speed and production condition. Control adding point, dosage and mixing condition properly.
Storage & Sea Freight Guidance:
Keep sealed in a cool, dry and ventilated warehouse. Avoid freezing, direct sunlight and high temperature. It is non-dangerous goods for shipping.
Keep sealed in a cool, dry and ventilated warehouse. Avoid freezing, direct sunlight and high temperature. It is non-dangerous goods for shipping.
Safety Operation:
Wear protective gloves, goggles and protective clothing during handling. Avoid contact with skin and eyes. If splashed into eyes, rinse with plenty of clean water immediately.
Wear protective gloves, goggles and protective clothing during handling. Avoid contact with skin and eyes. If splashed into eyes, rinse with plenty of clean water immediately.
COMMON FORMULAS
| Application Type | Main System Components | Recommended Grade |
|---|---|---|
| General Paper & Board | Pulp, dry strength agent | DWA-100 |
| High Strength Paper & Board | Pulp, high dry strength agent | DWA-200 |
| Wet Strength Paper & Tissue | Pulp, wet strength agent | DWA-300 |
| Board Production | Pulp, dry strength agent | DWA-400 |
| Tissue Paper Production | Pulp, wet strength agent | DWA-500 |
| Specialty Paper | Pulp, dry/wet strength agent | DWA-600 |
| Combined Dry & Wet Strength System | Pulp, dry strength agent, wet strength agent | DWA-100 / DWA-300 |
| Custom Papermaking System | Customer system and application condition | Custom Dry Strength Agent / Wet Strength Agent |
Formula Guidance:
Use DWA-100 for general systems, DWA-200 for high strength paper/board, DWA-300 for wet strength systems, DWA-400 for board, DWA-500 for tissue paper and DWA-600 for specialty paper. The dosage should be confirmed by strength test and production result.
Use DWA-100 for general systems, DWA-200 for high strength paper/board, DWA-300 for wet strength systems, DWA-400 for board, DWA-500 for tissue paper and DWA-600 for specialty paper. The dosage should be confirmed by strength test and production result.
COMMON PROBLEMS IN DOWNSTREAM PRODUCTION
Insufficient Dry Strength
Unsuitable grade, insufficient dosage, wrong pH or low pulp quality causes poor dry strength.
Solution: Select suitable grade, increase dosage, control pH and improve pulp quality.
Insufficient Wet Strength
Unsuitable grade, insufficient dosage or wrong adding point causes poor wet strength.
Solution: Use wet strength grade, increase dosage and optimize adding point.
Poor Paper Formation
Unsuitable grade, excessive polymer or wrong formulation causes poor formation.
Solution: Reduce polymer dosage, optimize formulation and select suitable grade.
System Buildup and Scaling
Unsuitable grade, high polymer or wrong pH causes system buildup.
Solution: Reduce polymer dosage, control pH and select compatible grade.
Poor Compatibility with Additives
Wrong grade or incompatible additive causes precipitation or poor performance.
Solution: Test compatibility before production and select matching grade.
Uneven Strength Distribution
Poor mixing, uneven distribution or wrong adding point causes uneven strength.
Solution: Improve mixing condition, optimize adding point and ensure uniform distribution.
Customs Detention Due to Mismatched Documents
Incorrect HS code or SDS information triggers inspection and detention at destination ports.
Solution: Confirm destination country regulations before order. Standard export data: HS Code 3824.9999, non-hazardous. We supply consistent full-set SDS / COA documents.
High COD Load in Wastewater
High organic content or excessive dosage increases wastewater treatment load.
Solution: Optimize dosage, use concentrated grade and cooperate with wastewater treatment.
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FAQ
PRICE INFORMATION
- Quotation Basis: CMC price depends on product grade, viscosity, substitution degree, order quantity and delivery terms.
- Price Validity: All quotations are subject to market raw material fluctuation. Normally valid for 7 days unless otherwise specified.
- Price Contains: The quoted price covers product cost and standard export packaging. Freight, insurance and export charges are calculated separately according to Incoterms.
- Tax & Invoice: Commercial invoice for export will be provided. Relevant export tax formalities can be handled.
- Payment Discount: Better price can be offered for larger repeated orders. Please contact us for the latest formal quotation.
DELIVERY TIME & SHELF LIFE
- Production Lead Time: 7–15 working days after receiving your deposit, subject to factory production schedule.
- Shipping Arrangement: After production completion, we will book container and arrange shipment. Port space availability may affect the departure date.
- Transit Time: Sea transit time varies according to destination port, generally ranges from 15 to 45 days.
- Shelf Life: 24 months from production date when stored under proper dry and cool conditions with original sealed packaging.
- Storage Warning: Once the bag is opened, please consume as soon as possible and keep away from moisture, high temperature and direct sunlight.
PRODUCT QUALITY
- Raw Material Inspection: All raw materials are strictly inspected before entering production line to guarantee stable base quality.
- In-process Monitoring: Continuous online monitoring during production for viscosity, substitution degree and moisture content.
- Batch Test: Every finished batch will be sampled and tested before delivery. Qualified report will be provided together with shipment documents.
- Consistency Control: Automated production lines reduce batch difference, ensuring stable performance for repeated orders.
- Quality Support: We accept third-party inspection before shipment. Technical team offers after-sales technical support for quality related issues.
ABOUT US
- Headquartered in Shijiazhuang: Based in Shijiazhuang, Hebei, a globally influential fine chemical production hub with huge capacity and full industrial chain to ensure stable raw materials and bulk supply.
- Geographic Advantage: Convenient inland transport near Tianjin and Qingdao ports, supporting fast container shipment and competitive export logistics cost.
- Full-chain Supplier: One-stop provider of fine chemical additives and matching production equipment, custom service available beyond cellulose ethers.
- Technical Team: Professional team supplies formula consultation, sample testing and product selection for various industrial projects.
- Global Export: Years of export experience, providing reliable goods, full export documents and timely after-sales technical support.
相关产品及设备
USEFUL LINKS
- AIChE https://www.aiche.org/
- IChemE https://www.icheme.org/
- Cheresources https://www.cheresources.com/
- NIST Chemistry WebBook https://webbook.nist.gov/chemistry/
- AspenTech https://www.aspentech.com/
- DECHEMA https://www.dechema.de/en.html
- ChemEngPlanet https://www.chemengplanet.com/
- PubChem https://pubchem.ncbi.nlm.nih.gov/
- Chemical Processing https://www.chemicalprocessing.com/
- ChemIndustry https://www.chemindustry.com/
- PharmaChemEngineer https://www.pharmachemeng.com/
- GlobalSpec https://www.globalspec.com/