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140gsm White Top Kraft Liner Paper For Gifx Boxes Smooth Surface WTL packaging paper

Categories White Top Testliner
Brand Name: CHINA PAPER
Model Number: White Top Linerboard
Certification: SGS,FDA,FSC
Place of Origin: CHINA
MOQ: 25 TON
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Delivery Time: 30 DAYS
Packaging Details: PE film wrapped, 4 angles protector, baled on strong wooden pallets
Name: White Top Linerboard /WTL/Coated Kraft Board
Material: Recycled pulp
Whiteness: 82%±2%
Weight: 110-235gsm
Size: 600*900mm, 700*1000mm, 787*1092mm, 880*1194mm or width >600mm in roll size, etc.
Packing: In roll or In pallet sheet or In ream wrapped
Load qty: 15-17 tons per 20FT; 25 tons per 40FT
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140gsm White Top Kraft Liner Paper For Gifx Boxes Smooth Surface WTL packaging paper

Specification of 140gsm White Top Kraft Liner Paper For Gifx Boxes Smooth Surface WTL packaging paper

Customized Size White Top Test Liner For All Kind Of Boxes


Product nameWhite Top Linerboard/WTL
Gram110g
Gram125g
Gram140g
Gram170g
Gram180g
Gram200g
Gram220g
Gram235g

White Top Testliner Board (WTL): Key Features & Applications

I. Core Features

Attribute

Technical Specification

Layered Structure

Top Layer: Bleached kraft pulp (70-80 ISO brightness)
Base Layer: Unbleached/recycled kraft (≥70% recycled fiber)

Strength Metrics

• Burst Strength: 560-700 kPa
• Edge Crush Test (ECT): 5-14 kN/m
• Ring Crush: 190-200 N

Surface Performance

• Printability: Supports 175 LPI HD printing (ΔE≤1.2)
• Smoothness: Parker ≤1.5μm (coated grades)

Environmental Durability

• Moisture Resistance: Cobb60 ≤25 g/m²
• Cold Tolerance: -25°C flexibility

Certifications

FDA CFR 21 (food contact)
FSC/PEFC
ISO 9001/14001


Primary Applications of White Top Testliner Board/WTL

Sector

Use Cases & Technical Advantages

Food & Beverage

Frozen Seafood Boxes: Salt-spray resistant coating, 18mo+ lifespan
Snack Cartons: OTR barrier ≤5 cc/m²/day (extends shelf life 30%)

E-commerce & Retail

Luxury Shoe Boxes: B-flute ECT≥14 kN/m, 4-color metallic prints
Cosmetic Packaging: Wet strength ≥45 N/m (humidity resistance)

Industrial Packaging

Heavy-Duty Shipping: Double-wall EB-flute (ECT≥40 kN/m), 40kg load capacity
Electronics Trays: Anti-static treatment (10⁸-10¹⁰ Ω/sq)

Sustainable Solutions

Recyclable Food Containers: FSC Mix base + PLA lamination
Retail Bags: 150gsm water-resistant coating (Cobb60≤20g/m²)



China 140gsm White Top Kraft Liner Paper For Gifx Boxes Smooth Surface WTL packaging paper factory
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