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120g Butter Paper Maximum Strength for Industrial Applications and Rigid Packagingv
120g Butter Paper Maximum Strength for Industrial Applications and Rigid Packagingv
Specifications
Supply Ability :
1000 Tons
Transparency :
60%
Delivery Time :
10-45 Days
Place of Origin :
China
Thickness :
0.112 mm
Tearing resistance :
350 mN
Price :
Negotiable
MD stretch :
4.5%
Packaging Details :
Kraft paper or carton, as per customer’s request
Tensile MD :
4.5 kN/m
Basis weight :
120 g/m²
Certification :
FSC,EUDR
Description

120 g/m² butter paper is the heaviest standard grade in common use, with tearing resistance ≥350 mN and transparency 60%. It is engineered for demanding tasks: PCB hand drawing, industrial insulating gaskets, rigid document covers, and high‑end translucent packaging that must withstand handling. The double‑sided matte finish allows writing and printing on both sides.

Technical Specifications (GB/T 1468-2011)

Parameter Unit Value
Basis Weight g/m² 120 (±5%)
Transparency % ≥60
Tearing Resistance mN ≥350
Smoothness (Bekk) s ≥10
Machine Direction Stretch % 4.5
Cross Direction Stretch % 15.0
Sizing Degree mm ≥1.5
Moisture Content % 7.0±1.0

Process Introduction

120g paper uses a maximum fiber refining degree (≥95°SR) to ensure fiber flattening and air expulsion. The pulp is formed at very low consistency (0.6‑0.8%) to achieve uniform formation. Pressing with moderate linear pressure prevents fiber collapse. Primary drying at 60‑70°C for slow shrinkage. Semi‑dry calendering at 120 kN/m at 12‑15% moisture. Surface sizing with high‑concentration PVA for superior water and oil resistance. Secondary drying to 6‑8% moisture, then finishing calendering.

Applications & Advantages by Category

  • PCB Hand Drawing – Durable, dimensionally stable for circuit board master drawings.

  • Industrial Insulating Gaskets – Used as dielectric barrier in electrical equipment (check voltage rating).

  • Rigid Document Covers – Protects blueprints, maps, and certificates; translucent for easy identification.

  • High‑End Packaging – Wraps watches, jewelry, or fine pens; robust and elegant.

Why Choose This Paper

120g delivers the highest tear strength and stiffness, making it the choice for industrial and premium packaging applications.

120g Butter Paper Maximum Strength for Industrial Applications and Rigid Packagingv

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120g Butter Paper Maximum Strength for Industrial Applications and Rigid Packagingv

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Product Detail
Supply Ability :
1000 Tons
Transparency :
60%
Delivery Time :
10-45 Days
Place of Origin :
China
Thickness :
0.112 mm
Tearing resistance :
350 mN
Contact Supplier
120g Butter Paper Maximum Strength for Industrial Applications and Rigid Packagingv

Dongguan Jifeng Paper Products Co., Ltd

Verified Supplier
1 Years
guangdong, dongguan
Main Products :
Butcher Paper, Copy Paper, Single Light White Cowhide
Certification Level :
Verified Supplier
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