Product brief introduction: Multiwall kraft paper sleeves (also named multi-layer kraft paper sleeves, tubular kraft paper sleeves) are hollow cylindrical packaging tubes manufactured by winding multiple layers of high-strength natural kraft paper board.They belong to eco-friendly rigid paper packaging, widely used as outer protective sleeves for rolls, reels, profiles, metal bars, plastic extrusions, carpet rolls, fabric rolls, film rolls, aluminum strips, timber poles, and other elongated goods.
Compared with single-layer paper sleeves, the multiwall laminated structure delivers superior radial compression resistance, impact resistance, and bending stiffness. The raw material is mostly unbleached natural brown kraft paper; white bleached kraft paper is also optional for cleaner surface presentation. Main Standard Specifications of Multiwall Kraft Paper Sleeves: All dimensions can be tailored; below are common technical parameters:
Dimension Range:
• Inner Diameter (ID): 50 mm – 1200 mm
• Wall Thickness: 1.5 mm – 25 mm (determined by paper layers; more layers = thicker wall)
• Length: 50 mm up to 6000 mm (cut-to-length according to customer requirement)
Raw Material Options:
1. Natural brown kraft paper (most popular, cost-competitive)
2. Bleached white kraft paper (smoother surface, better printing effect)
3. Water-resistant coated kraft paper (optional PE coating or wax coating for damp-proof applications)
4. High burst-strength kraft liner for heavy-duty transport
Structure
Multi-layer spiral winding construction (mainstream production process); parallel winding available for special thick-wall demands.
Surface finish: Original matte kraft surface; polished smooth surface as an upgrade option for premium printing.
Printing & Brand Customization Feasibility
Yes, multiwall kraft paper sleeves fully support customized printing, branding, and graphic customization.
Printing can be applied on the outer layer kraft paper before tube winding, or direct surface printing after sleeves are formed.
3.1 Available Printing Technologies
1. Flexographic Printing (Flexo Printing) - Most Widely Used
◦ Applicable: Text, simple logos, barcodes, basic graphics
◦ Color: 1–4 spot colors (CMYK available upon request)
◦ Ink: Water-based eco ink (recyclable, compliant with EU & global environmental standards)
◦ Advantage: Low MOQ for bulk orders, stable cost, suitable for large-volume industrial packaging
◦ Limitation: Not ideal for ultra-fine gradient photos
2. Digital Inkjet Printing
◦ Applicable: Complex patterns, full-color gradients, variable data (serial numbers, batch codes)
◦ Advantage: No printing plate required, flexible for small-batch orders, fast lead time
◦ Limitation: Higher unit price compared with flexo for mass production
3. Screen Printing
◦ Applicable: Bold logos, large text, thick ink layers for strong visual effect
◦ Commonly chosen for short-run, heavy branding demands
3.2 Customizable Printed Content
• Company brand logo, trademark
• Business name, contact information, website
• Product specification, item code, batch number, production date
• Shipping marks: Fragile, Do Not Crush, Upward Arrow, moisture warning symbols
• QR codes, barcodes
• Custom slogan, marketing graphics
• Customer compliance marks: CE, recycling logos, certification marks
3.3 Important Factors Affecting Printing Quality
1. Paper Surface
Smooth bleached white kraft delivers sharper printing. Original rough natural brown kraft creates a rustic, textured look; fine detailed patterns are less recommended on unpolished brown kraft.
2. Surface Coating Notice
If customers require water-proof PE lamination: Printing must be completed before coating. Printing over PE film will cause ink adhesion failure and easy scratching.
3. Printing Area Limitation
Printing covers the outer curved surface. We need to confirm the printable width based on sleeve circumference; continuous full-wrap printing is supported.
4. Additional Customization Options (Beyond Printing)
Apart from printed branding, further modifications can be offered:
1. Die-cut notches, holes, or slots on sleeve ends
2. Chamfered/beveled edges to prevent scratching wrapped goods
3. Internal cushion lining (optional craft paper liner)
4. Moisture-proof treatment
5. Custom inner/outer diameter and wall thickness to match your products
5. Suitable Application Scenarios for Printed Multiwall Kraft Sleeves
• Metal & aluminum extrusion industry
• Plastic film, textile, nonwoven fabric roll packaging
• Cable, rubber hose protection
• Timber, composite profile transportation
• Export cargo packaging with required shipping identification marks
• If one end of a kraft paper sleeve is sealed, it can also be used as a kraft paper bag for packaging various items.
By and large, multiwall kraft paper sleeves are highly customizable for printing and branding. Customers can select printing technology, colors, and artwork according to order quantity, budget, and aesthetic requirements. To achieve optimal printing clarity, suppliers usually suggest confirming paper type, whether waterproof coating is needed, and providing vector artwork files (AI / PDF / EPS) at the inquiry stage.
