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70g Butter Paper General Purpose For Engineering Drawing And CAD Output
70g Butter Paper General Purpose For Engineering Drawing And CAD Output
Specifications
Certification :
FSC,EUDR
Thickness :
0.060 mm
Tearing resistance :
220 mN
Basis weight :
70 g/m²
Price :
Negotiable
Place of Origin :
China
Product name :
70g Butter Paper
Packaging Details :
Kraft paper or carton, as per customer’s request
Transparency :
68%
Delivery Time :
10-45 Days
Supply Ability :
1000 Tons
Description

70 g/m² Butter Paper is the most widely used grade for manual engineering drawing, CAD inkjet/laser plotting, and architectural sketches. With transparency around 67% and improved tearing resistance (≥200 mN), it withstands erasing and revision without damage. The neutral pH (6.0‑8.5) ensures long‑term archiving without yellowing.

Technical Specifications (Interpolated from 75g data)
Parameter Unit Value
Basis Weight g/m² 70 (±5%)
Transparency % ≥67
Tearing Resistance mN ≥200
Smoothness (Bekk) s ≥22
Machine Direction Stretch % 3.5
Cross Direction Stretch % 12.0
Sizing Degree mm ≥1.5
Moisture Content % 7.0±1.0
Process Introduction

Modern acid‑free process with higher basis weight requires increased fiber bonding. Beating degree maintained at ≥90°SR to preserve transparency. Extended low‑temperature drying ensures uniform shrinkage. Semi‑dry calendering at 12‑15% moisture followed by surface sizing with stearic acid starch/PVA for oil and water resistance. Final calendering achieves smoothness ≥300s and excellent dimensional stability.

Applications & Advantages by Category

  • Engineering Drawing – Manual drafting for mechanical, architectural, and civil engineering; accepts pencil, ink, and technical pens.

  • CAD Output – Compatible with dye/pigment inkjet plotters and laser printers; clear lines, no smudging.

  • Blueprint Making – Base sheet for diazo (ammonia) process; anti‑aging and light‑resistant.

  • Overlay Tracing – Lay over maps or circuit diagrams for revision; stable under humidity changes.

Why Choose This Paper

70g is the all‑round workhorse for engineers and architects, trusted for daily drafting and printing tasks.

70g Butter Paper General Purpose For Engineering Drawing And CAD Output
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Product Detail
Certification :
FSC,EUDR
Thickness :
0.060 mm
Tearing resistance :
220 mN
Basis weight :
70 g/m²
Price :
Negotiable
Place of Origin :
China
Contact Supplier
70g Butter Paper General Purpose For Engineering Drawing And CAD Output

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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