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Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books
Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books
Specifications
Certification :
FSC,EUDR
Supply Ability :
1000 Tons
Moisture content :
≤8%
Folding resistance :
≥60 times (+20%)
Packaging Details :
Kraft paper or carton, as per customer’s request
Thickness :
0.125 mm (mid 0.12‑0.13)
Delivery Time :
10-45 Days
Basis weight :
85 g/m² (+6% from 80)
Price :
Negotiable
Place of Origin :
China
Roll length :
1000 m
Width :
20‑50 mm
Description

Engineered for thicker notebooks and hardcover books (book thickness 4‑30mm), this 85 g/m² pure paper back strip offers increased stiffness and tear resistance (thickness 0.12‑0.13 mm). It provides superior spine reinforcement for books up to 30mm thick, preventing sagging and deformation over long‑term use. Compatible with perfect binding and thread‑sewn binding on high‑speed back strip machines (max 21 m/min).

Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books

Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books

Technical Specifications

Parameter Unit Value
Basis Weight g/m² 85 ±2.5
Thickness mm 0.12‑0.13
Width mm 20‑50 (customizable)
Roll Length m 1000
Folding Resistance times ≥60
Tensile Strength MD kN/m ≥3.2
Tensile Strength CD kN/m ≥1.6
Moisture Content % ≤8
Applicable Book Thickness mm up to 30

Process Introduction

Similar to the 80g grade but using a slightly heavier base paper. The paper is coated with a higher‑solids adhesive to ensure deep penetration into thicker spines. Drying temperature is precisely controlled to maintain stiffness without brittleness. Slitting widths are optimized for large‑format books (35‑50mm). Each roll is tested for thickness consistency and fold endurance.

Applications & Advantages by Category

  • Hardcover Notebooks – Extra strength for diary and journal spines; resists cracking when opened flat.

  • Textbooks & Reference Books – Withstands frequent use in schools and libraries.

  • Photo Albums – Prevents spine sagging under weight of heavy pages.

  • Archival Documents – Long‑term preservation without yellowing or embrittlement.

Why Choose This Paper – 85g pure paper back strip provides the extra rigidity needed for thick books, ensuring a professional, durable finish.

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Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books

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Product Detail
Certification :
FSC,EUDR
Supply Ability :
1000 Tons
Moisture content :
≤8%
Folding resistance :
≥60 times (+20%)
Packaging Details :
Kraft paper or carton, as per customer’s request
Thickness :
0.125 mm (mid 0.12‑0.13)
Contact Supplier
Heavy Duty Pure Paper Back Strip 85g for Thick Notebooks and Hardcover Books

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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