Unbleached Kraft Paper

UFOPAK™

Unbleached Kraft Paper

Available in both pristine Bleached White for a clean, premium presentation, and Natural Unbleached (Brown) for an eco-friendly, artisanal brand identity.

KEY BENEFITS

Maximum Durability - Retains natural fiber strength for superior burst and tear resistance compared to bleached alternatives.
Direct Food Contact Safe - FDA-compliant, odor-free, and manufactured without harmful bleaching chemicals.
Eco-Conscious Appeal - The natural brown finish instantly communicates your brand's commitment to sustainability.
High-Speed Runnability - Consistent web tension and smooth surface profiles optimized for automated converting machines.

Request Samples

Grammage

30 - 98 g/m²

Moisture

7.0% (+2/-1)

Thickness

45 - 150 µm (Varies by GSM)

Tightness

≤ 0.60 g/cm³

Cobb Value (US)

≤ 40 g/m²

Smoothness (US)

≥ 15 S

Tensile Strength (MD / CD)

MD: ≥ 33-105 N/15mm / CD: ≥ 15-67 N/15mm

Stretch (MD / CD)

MD: ≥ 1.7% / CD: ≥ 4.0%

Tearing Resistance (MD / CD)

MD: ≥ 100-950 mN / CD: ≥ 110-1000 mN

Bursting Strength

≥ 100 - 350 kPa

Air Permeability

≤ 5 µm/Pa.s

Negative

Odour

Recycled Fiber Grade

Not Used (100% Virgin)

Core Performance Features

Engineered for Maximum Strength & Sustainability

Superior Mechanical Strength

Retains 100% natural fiber strength by bypassing chemical bleaching. Delivers unmatched burst and tear resistance to minimize web breaks on high-speed converting lines.

The Ultimate Eco-Friendly Statement

The natural brown finish instantly communicates environmental responsibility. It provides a premium, rustic canvas with excellent ink adhesion for crisp flexographic printing.