Guar Gum for Paper Industry — Wet-End Additive, Surface Sizing & Retention Aid
HICOL® Paper Grade Guar Gum strengthens, retains and sizes — a clean-label natural alternative to synthetic dry-strength resins for kraft, linerboard, tissue and specialty grades.
Quick Answer
How is guar gum used in paper manufacturing?
Guar Gum (galactomannan polysaccharide) significantly improves paper properties: it increases burst strength, tensile strength, and fold resistance while reducing fines loss in white water. As a wet-end additive at 0.1–0.5% on fiber weight, HICOL® Paper Grade from B D Guar enhances drainage, formation, and retention in both chemical and mechanical pulp systems.
How Guar Gum Improves Paper Strength and Formation
Guar gum's long galactomannan chains carry hydroxyl groups that hydrogen-bond directly to cellulose fibers, building fiber-to-fiber bond density. The result is measurable gains in burst (typically +15–25%), tensile (+10–20%) and fold endurance (+20–30%), with parallel improvements in sheet formation uniformity.
Wet-End Application: Drainage Aid and Retention in Pulp Systems
Added at the headbox or fan-pump at 0.1–0.5% on dry fiber, guar gum flocculates fines and fillers, improving first-pass retention and accelerating drainage on the wire — a direct energy saving in the drying section and lower BOD in white-water loops.
Surface Sizing with Guar Gum: Printability and Porosity Control
Applied at the size-press at 0.5–1.5%, guar gum forms a uniform film that controls porosity, improves smoothness and lifts ink-holdout for offset and inkjet printing — particularly cost-effective for office, copier and specialty white papers.
HICOL® Paper Grade Specifications: Viscosity, Substitution Degree & Solubility
Wet-end grade: 3,000–5,000 cps (1%, 25°C). Surface-sizing grade: 1,500–3,000 cps. Cationic and carboxymethyl derivatives available for cationic and high-shear systems. ETO-free, ISO 9001:2015 documentation.
Guar Gum vs Starch in Paper Manufacturing: Cost and Performance
Versus cationic starch, guar gum typically delivers higher strength per kg, lower required dosage and easier handling — and is a biodegradable alternative to petroleum-based synthetic dry-strength resins.
Frequently asked questions
What is the dosage of guar gum as a wet-end additive in paper manufacturing?
Typical wet-end dosage is 0.1–0.5% on oven-dry fiber weight. Lower dosages improve drainage and retention; higher dosages target burst and tensile strength gains in linerboard and kraft grades.
How does guar gum improve paper strength compared to starch?
Guar gum produces stronger fiber-to-fiber hydrogen bonding than cationic starch at equivalent dosage, typically increasing burst strength by 15–25% and fold endurance by 20–30%, while costing less per active kilogram.
Can guar gum be used in tissue paper manufacturing?
Yes. Low-dosage guar gum (0.05–0.2%) is used in tissue to improve softness, wet-end formation and machine runnability without compromising absorbency.
What viscosity grade is best for surface sizing applications?
Lower-viscosity guar derivatives (1,500–3,000 cps at 1%) or carboxymethyl guar are preferred for surface sizing — they pump easily through size-press systems and lay down a uniform film for ink holdout.
Is guar gum compatible with cationic retention aids in the paper wet-end?
Yes. Anionic native guar pairs well with cationic PAM retention systems, and cationic guar derivatives can be used directly as a retention/strength dual-function additive.
Does B D Guar supply guar gum specifically for the paper industry?
Yes. HICOL® Paper Grade is a dedicated industrial line — supplied in 25 kg bags or 1 MT jumbo bags, with quality control aligned to paper mill specifications and ISO 9001:2015 documentation.