Hot Sale Virgin Pulp Brown Kraft Liner Paper Light Weight Paper Roll Environmentally Friendly Packing
Product Specification
| Type | Brown Kraft Paper |
| Material | Virgin wood pulp |
| Color | Brown |
| Weight | 60g/70g/80g/90/100g/110g/120g/130g/140g/150g/160gsm |
| Size | ≥600MM or can be customized |
| Packaging | Roll packing/Sheets packing |
| Delivery time | 30 days after order confirmed |
| Port | Ningbo |
| Payment terms | T/T ,Western Union,Paypal |
Features
Good strength for corrugated board production
Stable performance on high-speed machines
Suitable for large-volume packaging manufacturing
Cost-effective and practical for industrial use
Available in multiple basis weights to match different packaging needs
Application
Food packaging paper
inner liner paper
wrapping paper
Envelopes
labels
simple paper bags
product information cards
packaging cover seals
Technical Data
Hot Sale Virgin Pulp Brown Kraft Liner Paper Light Weight Paper Roll Environmentally Friendly Packing
Technical data
| Technical Specification | |||||||||||
| Grammage g/m² | 60 | 70 | 80 | 100 | 115 | 125 | 135 | 140 | 145 | 150 | 160 |
| ±4.0 | ±4.0 | ±4.0 | ±5.0 | ±5.0 | ±5.0 | ±5.0 | ±5.0 | ±5.0 | ±5.0 | ±5.0 | |
| RCT (CD) Index N.m/g ≥ | 7.0 | 7.0 | 7.0 | 7.0 | 7.5 | 8.0 | 9.0 | 9.0 | 9.5 | 10.0 | 10.0 |
| Moisture % | 8.0±2.0 | ||||||||||
| Burst Index kPa.m²/g ≥ | 4.5 | ||||||||||
| Density g/cm³ ≥ | 0.7 | ||||||||||
| Folding Endurance 次 ≥ | 120 | ||||||||||
| Internal Bond J/m² ≥ | 150 | ||||||||||
| Smoothness S ≥ | 5 | ||||||||||
| COBB60 Top/Back g/m² ≤ | 50/80 | ||||||||||
Conditions Of Testing：Temperature)：23±1℃,Relative Humidity)：50±2%；
For paper with a weight ＜ 160gsm, use the paper breaking strength tester;
For paper with a weight ≥ 160gsm, use the cardboard breaking strength tester.
The items marked with "*" are for reference only.
For the weights not clearly specified in the table, the adjacent lower weight standard shall be taken as the reference, for example, 105gsm shall be taken as 100gsm.
What is Kraft Liner paper
Kraft Liner Paper is a high-quality liner board designed for corrugated packaging and industrial carton production. Available in basis weights from 60gsm to 160gsm, it provides excellent strength, stability, and processing efficiency for paper mills, carton factories, and packaging converters.
This kraft liner paper is made to support strong performance in corrugated board production. It features good surface consistency, reliable fiber bonding, and stable runnability on high-speed machines. Depending on the grammage, it can be used as face paper, liner paper, or outer layer material for a variety of packaging structures. Its lightweight-to-medium weight range makes it suitable for both economical and durable packaging solutions.
Premium Kraft Liner is widely used in corrugated boxes, shipping cartons, industrial packaging, logistics packaging, retail cartons, and export packaging. It is especially valuable for businesses that need dependable packaging paper with stable quality and broad application flexibility.
This product is suitable for corrugated box manufacturers, packaging plants, paper distributors, industrial buyers, and exporters who need a reliable liner board for large-scale production. For companies seeking strength, cost efficiency, and consistent performance, brown kraft paper is a practical and trustworthy packaging material
What is the difference between high weight Kraft Paper and light weight Kraft Liner Paper?
The Difference Between High-Weight Kraft Paper and Light-Weight Kraft Liner Paper
While both materials share the same durable root of the unbleached chemical "Kraft" process, they are engineered for entirely different structural roles based on their grammage and mechanical properties:
High-Weight Kraft Paper / Board (190g–440g): This category moves into the "heavyweight" or paperboard territory. Its defining characteristics are exceptional stiffness, high bursting strength, and thickness. Instead of being wrapped, it is designed to hold shape independently. It is the premier choice for standalone, rigid, eco-friendly packaging—such as premium cosmetics folding cartons, high-end gift setups, and e-commerce mailers—acting as the primary shield and structural body of the package.
Light-Weight Kraft Liner Paper (60g–160g): Often referred to as Kraft Liner, this range balances tensile strength with high flexibility. Rather than forming a rigid box on its own, it is primarily engineered to be corrugated or laminated. It serves as the outer and inner facing sheets (liners) that are glued onto fluted medium paper to create corrugated shipping boxes. Additionally, its pliable nature makes it the standard "workhorse" for automated machinery to produce multi-wall shipping sacks, grocery bags, envelopes, and industrial protective wrapping.
Q&A：
Q1: What is 60g–160g industrial Kraft paper primarily used for? A: This specific grammage range represents lightweight to medium-weight industrial packaging papers. It is highly versatile, widely used for making multi-wall shipping sacks, grocery bags, envelope pocket linings, protective wrapping rolls, interleaving sheets, and carrier bags.
Q2: Why is the 60g–160g range considered the "workhorse" of industrial packaging? A: It offers the ultimate balance between flexibility and tensile strength. It is thin and pliable enough to be easily folded, formed, or run through high-speed bag-making machines, yet tough enough to resist tearing under standard industrial handling.
Q3: What is the difference between Extensible Kraft Paper and Standard Kraft Paper in this weight range? A: Extensible Kraft paper (often 70g–100g) undergoes a special micro-creping process during manufacturing that gives it extra "stretch" or elasticity. This allows the paper to absorb sudden impacts without bursting, making it perfect for filling heavy-duty sacks (like cement or chemical powders).
Q4: How does the bursting strength of 60g compare to 160g Kraft paper? A: Bursting strength scales dynamically with grammage. While a 60g–80g paper provides excellent light wrap-ability and tearing resistance, a 150g–160g sheet provides a much higher burst threshold, allowing it to support heavy, sharp-edged, or bulky industrial parts without puncturing.
Q5: Is 60g–160g Kraft paper compatible with high-speed automated bag-making machines? A: Yes, absolutely. This thickness range is specifically engineered with excellent web tension and consistent thickness profiles to ensure smooth feeding, folding, and gluing on high-speed industrial converting machinery without causing paper jams or web breaks.
Q6: What type of printing is recommended for 60g–160g industrial Kraft paper? A: Flexographic (Flexo) printing is the industry standard for this range. It is highly cost-effective for large-volume industrial runs (like logo printing on shopping bags or cement sacks) and works beautifully with the natural, porous surface of unbleached Kraft paper.
Q7: Can this paper handle water-based adhesives for industrial bag construction? A: Yes. Because industrial Kraft paper is uncoated and retains its natural wood fibers, it has excellent absorption properties. It bonds rapidly and securely with starch-based or water-based adhesives, creating a structural, fiber-tearing seal.
Q8: What is "interleaving paper," and why is 60g–90g Kraft paper used for it? A: Interleaving paper is placed between sheets of glass, stainless steel, or aluminum to prevent scratching and corrosion during transport. The 60g–90g range is perfect because it is smooth, uniform, and can be treated to be pH-neutral (acid-free) to protect sensitive metal surfaces.
Q9: Is 60g–160g industrial Kraft paper waterproof? A: Standard unbleached Kraft paper is naturally porous and will absorb water. However, for industrial moisture protection, it can be treated with surface sizing (to lower COBB values) or laminated with a thin PE (polyethylene) layer or eco-friendly bio-coatings to create a reliable moisture barrier.
Q10: Can 60g–160g Kraft paper replace plastic bubble wrap or void-fill? A: Yes. Lightweight Kraft paper (60g–80g) is highly crushable and crumpled easily, making it an excellent, 100% sustainable void-fill material for e-commerce packaging to cushion products and absorb shocks during shipping.
Q11: Are these industrial papers safe for food packaging applications? A: Yes, our virgin pulp 60g–160g Kraft papers are unbleached, chemical-free, and FDA/EU food-contact compliant. They are widely used for flour sacks, bakery bags, and dry food commodity packaging.
Q12: Is this grammage range recyclable and compostable? A: Yes, 100%. Unless it is laminated with plastic, standard 60g–160g industrial Kraft paper is completely biodegradable, compostable, and can be recycled back into the supply chain up to 7 times.
Q13: How is this product typically delivered to industrial buyers? A: It is primarily supplied in jumbo rolls (slit to the customer’s precise width requirements) for automated conversion lines, or in precision-cut flat sheets packed on heavy-duty pallets.
Q14: What parameters should a B2B buyer provide when requesting a quote? A: To provide an accurate quote, please specify: the exact Grammage (GSM), Roll Width / Sheet Dimensions, Core Diameter (for rolls), Total Quantity (Tonnage), and whether you require any special properties like extensibility or food-grade certification.
Q15: How should 60g–160g Kraft paper rolls be stored to ensure long shelf life? A: They should be stored in a dry, temperature-controlled warehouse, kept on pallets off the concrete floor, and left in their original moisture-proof protective wrapping until right before production to prevent edge curling or moisture absorption.
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