The role of dry strength agent in papermaking

Addressing Pain Points

The low strength of waste paper raw materials, high cost of wood pulp raw materials, and low strength of finished paper result in a lack of competitiveness in the market.

* Mechanism of Action

The product is a hydrophilic cationic polymer that disperses between fibers, increasing the number of fiber molecular bonds, particularly forming more hydrogen bonds with hydroxyl groups in the fibers, thus making fiber bonding more secure.

* Application Effects

The application of dry strength agents to different types of paper leads to varying improvements in strength indicators. For boxboard paper, improvements are seen in puncture resistance and folding endurance; for yarn tube base paper, improvements are observed in interlayer bonding, stiffness, and ring crush strength; for cultural paper, improvements are noted in tear length, stiffness, puncture resistance, and tensile strength, among others.

* Product Advantages

- Addresses the drawback of low strength in waste paper while significantly enhancing puncture resistance, folding endurance, and other strength indicators.

- Improves wet-end retention and filtration effects, enhancing the cleanliness of white water systems.

- Reduces paper machine downtime and the occurrence of paper lint and dust in the drying cylinder, improving the surface strength of cultural paper.

* Scope of Application

Suitable for papers such as boxboard paper, cardboard, yarn tube paper, and gypsum facing paper that require improved fiber bonding strength.