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Polypropylene Honeycomb Core

Custom Pressure-Sensitive Paper Labels for Industrial & Packaging Applications

Pressure-Sensitive Paper Labels combine precise facestock coatings, specialized adhesive formulations, and smooth release liners to support high-speed automated application and thermal barcode printing. Designed to replace inconsistent converted stock and unreliable glue formulations, these label structures deliver crisp print contrast, clean matrix stripping, and reliable adhesion across corrugated boxes, plastic containers, and glass packaging.

Engineered for logistics fulfillment, retail packaging, and automated labeling lines, these paper labels eliminate glue bleeding, barcode fading, and liner web breakage during continuous high-speed runs.

PP Non-Woven Honeycomb Sandwich Board
Enhanced bonding interface: non-woven fabric dramatically improves PU, epoxy, and hot-melt adhesive compatibility vs. bare PP.
Ultra-lightweight: finished panel weight as low as 3–5 kg/m²...
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PP Honeycomb
Ultra-lightweight: density as low as 60 kg/m³ — reduces panel weight by 60–80% vs. plywood or solid plastic.
High strength-to-weight: hexagonal cell geometry provides excellent compressive...
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Polypropylene Honeycomb Core Material
Material: Polypropylene (PP) — virgin, recycled, or glass-fiber reinforced grades
Cell Shape: Hexagonal (standard, best strength-to-weight), circular, rectangular
Cell Size...
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Polypropylene Honeycomb
Raw Material: Food-grade / Industrial-grade polypropylene (PP)
Cell Shape: Regular hexagon
Cell Size Range: 3mm - 20mm (customizable)
Thickness Range: 5mm - 200mm+...
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PP Honeycomb Core
Product Name: PP Honeycomb Core
Thinckness: 5-50mm
Material: pp
Density: 20-80KG/Square Meter
Use: Aircraft & Automobiles & Vessels & Electronics & Architecture & Sports gear
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Product Categories

Direct Thermal (DT) Paper Labels
Optimized for short-term shipping labels, logistics tracking, and scale printing without requiring ribbons. Features a heat-sensitive topcoat that reacts directly with thermal printheads.
Facestock: Top-Coated / Non-Top-Coated Direct Thermal Paper (70 to 80 g/m2)
Standard Liner: 60 g/m2 White or Blue Glassine Liner
Key Feature: High contrast black image formation with protective barrier against oil, water, and plasticizers.

Thermal Transfer (TT) Semi-Gloss & Coated Paper Labels
Designed for long-term inventory tracking, retail packaging, and box labeling requiring durable print quality with wax or wax-resin ribbons.
Facestock: Cast-Coated / Semi-Gloss / Art Paper (75 to 90 g/m2)
Standard Liner: 62 g/m2 Yellow or White Glassine or Kraft Liner
Key Feature: Smooth surface micro-structure ensuring complete ink transfer and high-density 1D and 2D barcode scannability.

Materials & Specifications

Technical Parameter	Metric Specification	Test Standard / Method
Total Label Thickness	135 to 175 um (Facestock + Adhesive + Liner)	ISO 534
Facestock Substance	70 g/m2 to 90 g/m2	ISO 536
Initial Tack	12 to 18 N/25mm (Permanent Hot-Melt or Acrylic)	FNAT 9 (Loop Tack)
Peel Adhesion (20 min)	8 to 14 N/25mm (Stainless Steel)	FNAT 1
Service Temperature	-40 degrees C to +80 degrees C (Deep Freeze Grade available)	Manufacturer Standard
Minimum Application Temp	-5 degrees C to +5 degrees C	Manufacturer Standard
Release Liner Type	58 g/m2 to 80 g/m2 Glassine or Kraft Liner	ISO 536
Release Force	10 to 25 cN/25mm (High-speed peeling compliant)	FNAT 3
Barcode Print Contrast	PCS Ratio greater than or equal to 85%	ANSI X3.182
Tensile Strength (MD)	Greater than or equal to 4.5 kN/m	ISO 1924

Applications

Logistics & Supply Chain Tracking

Shipping labels, cross-docking outer carton barcodes, pallet tracking tags, and automated sorting system labels.

Retail & Fast-Moving Consumer Goods (FMCG)

Food and beverage primary packaging, price markdowns, pharmaceutical secondary packaging, and personal care product seals.

Cold Storage & Deep-Freeze Logistics

Frozen food packaging, cold room inventory labeling, and refrigerated transport identification requiring low-temperature tack.

OEM / Customization Capabilities

Die-Cutting & Roll Configurations:

Precision rotary die-cutting (Square, Rectangular, Circular, Custom contour cuts)
Gap between labels: 2 mm, 3 mm, or custom pitch spacing
Perforations: Inter-label perforations or anti-tamper security slits
Core Inside Diameters: 25 mm (1 inch), 40 mm (1.5 inch), 76 mm (3 inch)

Adhesive Options & Coating Weight:

General Purpose Permanent Acrylic (Water-based, zero solvent odor)
High-Tack Hot-Melt Rubber (Optimized for recycled corrugated boxes)
Deep-Freeze Adhesive (Maintains tack down to -25 degrees C application)
Removable / Peelable Adhesive (Leaves zero residue on glass or metal)

Surface Finishes & Pre-Printing:

Full-color flexographic pre-printing (Up to 8 colors)
Protective varnish (Matte, Gloss, UV-curable overprint varnish)
Back-side liner printing (Sensor mark alignment lines or branding)

Quality Control & Manufacturing Process

Production Workflow
Raw Facestock & Siliconized Liner Quality Inspection
Precision Adhesive Slot-Die Coating & Laminating
Multi-Color Flexographic Printing & UV Varnish Curing
High-Speed Rotary Die-Cutting & Matrix Stripping
Tension-Controlled Rewinding & Roll Slitting
Automated Roll Shrink-Wrapping, Dust Proofing & Palletizing
Core Manufacturing Controls

In-Line Adhesive Coating Consistency:
Adhesive coat weight is monitored via online radiometric thickness gauges during slot-die coating, keeping glue distribution within +/- 0.5 g/m2 to prevent edge bleed and adhesive dry spots.

Precise Die-Cut Depth Calibration:
Rotary die-cutting pressures are set using dynamic anvil adjusters. Depth is calibrated to cut clean through facestock and adhesive without scoring the glassine liner silicon layer, avoiding web breaks on automated labeling machines.

Factory Quality Verification Testing:
Every production run undergoes physical verification:
FNAT Peel & Tack Testing: Samples from each coating lot are tested on stainless steel and corrugated fiberboard.

Barcode Scan Verification: Thermal printhead test rigs verify dot gain and scannability across standard desktop and industrial printers.

Thermal Aging Test: Accelerated storage testing at 50 degrees C and 85% RH for 48 hours to confirm zero adhesive migration or yellowing.

Packaging & Delivery

Roll Protection: Individual rolls shrink-wrapped in moisture-barrier PE film with silica gel desiccants.

Carton Inner Packaging: Heavy-duty double-wall corrugated shipping boxes with internal cardboard separators to prevent roll-to-roll contact.

Pallet Securing: Heavy-duty plastic corner guards, stretch-wrapped on plastic or fumigated wooden pallets with strapping bands.

Container Loading Rates (Standard 100 x 150 mm / 4 x 6 inch Shipping Labels, 1000 labels/roll):

76 mm (3 inch) Core: Approx. 36,000 rolls / 20ft GP Container

Custom Palletization: Stacked up to 1.2 m height per pallet tier to prevent bottom carton crushing.

FAQ

Q: What is the difference between Direct Thermal and Thermal Transfer paper labels?

A: Direct Thermal (DT) paper contains a chemical heat-sensitive layer that turns black under thermal printheads without ribbons. It is ideal for short-term logistics shipping labels with a life span under 6 months. Thermal Transfer (TT) paper requires an ink ribbon (wax or wax-resin) to print, producing durable images resistant to fading, heat, and abrasion for long-term inventory storage.

Q: How do you prevent glue bleeding on label roll edges during storage or high-speed dispensing?

A: Glue bleed occurs when adhesives are too soft or coat weights are uneven. We utilize controlled hot-melt and cross-linked acrylic formulas combined with precise slot-die coating. Additionally, slitting tension and roll edge trimming parameters are maintained to prevent adhesive squeeze-out during hot transport conditions.

Q: Can these labels adhere reliably to recycled corrugated cartons in low temperatures?

A: Yes. Standard adhesives often fail on porous, rough recycled cardboard or in cold environments. We offer high-tack rubber hot-melt adhesives engineered with higher initial tack (FNAT 9 greater than 16 N/25mm) and deep-freeze acrylic adhesives that bond down to -25 degrees C without crystallization.

Q: How do you ensure the release liner does not snap during high-speed automatic application?

A: Liner breakage is caused by die-cut anvil blades scoring into the glassine release liner. Our manufacturing lines use micro-adjustable rotary die stations and high-tensile 60 g/m2 glassine liner stock, ensuring the liner retains its tensile strength (MD greater than 4.5 kN/m) for smooth matrix stripping and automatic dispensing up to 60 meters per minute.

Q: What roll core size and unwind direction options are available for industrial applicators?

A: Rolls are supplied on 25 mm (1 inch), 40 mm (1.5 inch), or 76 mm (3 inch) paper or plastic cores. Unwind directions (Labels face-out or face-in, lead edge first) are fully customizable according to your automatic applicator model (Standard Industry Winding Diagrams 1 through 8 supported).

Q: What is the Minimum Order Quantity (MOQ) and production lead time?

A: Standard Unprinted Jumbo / Roll Sizes: MOQ is 1,000 m2 or 2,000 standard rolls.
Custom Pre-Printed or Custom Die-Cut Sizes: MOQ is 3,000 m2 per specification.
Production Lead Time: 10 to 14 calendar days from artwork or specification sign-off to container loading.

We're well-known as one of the leading polypropylene honeycomb core manufacturers and suppliers in China, also support custom service. Please feel free to wholesale high quality polypropylene honeycomb core made in China here from our factory. For more information, contact us now.

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