Applications & Features

PR-04 Retention Aid is formulated with modified polyacrylamide and a microparticle component. Through charge neutralization and bridging mechanisms, it effectively captures fibers, fillers, and fines, significantly improving retention rates and drainage performance, reducing white water solids, saving energy, and lowering consumption. It also reduces fabric plugging and forming fabric wear, minimizes two-sidedness and linting/picking, improves paper formation, and increases machine speed and production efficiency. It is compatible with wet end additives such as sizing agents, dry strength agents, and biocides, and is suitable for various papermaking systems including cultural paper, packaging paper, and tissue paper.

Technical Specifications

Appearance	White, free-flowing ultrafine powder, no lumps, no mechanical impurities	Solid content (%)	≥90.0
Molecular weight (×10,000)	900–1100	Cationic degree (%)	20–30
Moisture content (%)	≤5.0	Dissolution time (0.1% aqueous solution, room temperature)	≤60 min
Insolubles content (%)	≤0.5	pH of 1% aqueous solution	5.0–7.0

Application Instructions

Addition method

Prepare the solution using room temperature clean water. Recommended dissolution concentration is 0.1%–0.2%. After complete dissolution, let it stand for 15–20 minutes for ageing. Then add continuously via a metering pump at the fan pump inlet, pulp mixing chest, or front end of the headbox.

Recommended dosage

Based on absolute dry pulp:

- Cultural paper and tissue paper: 120–250 g/t

- Linerboard and high-filler white board: 200–350 g/t

Packaging, Shelf Life & Services

Packaging specifications

25 kg/bag (customizable upon request).

Storage conditions

Store in a dedicated, cool, dry, well-ventilated warehouse. Avoid direct sunlight, rain, heavy pressure, and keep away from strong acids, strong alkalis, and other chemical additives. Prevent moisture absorption and caking.

Shelf life

12 months

Services

Samples and customized formulation support available. For any process adaptation or usage issues, please feel free to contact us for professional solutions.

FAQ

Q1: What is the difference between a retention aid, a flocculant, and polyacrylamide?

▶ Retention aid is specifically for wet end retention and drainage/formation. General flocculants are mainly for wastewater sedimentation. Some high-molecular-weight PAM products can be used as retention aids, but dedicated retention aids offer better compatibility and do not affect paper strength or sizing.

Q2: Which paper grades and pulp types is it suitable for?

▶ Linerboard, corrugating medium, tissue paper, cultural paper, white board; suitable for various production lines using wood pulp, wastepaper pulp, and mixed pulp.

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