Water Activated Reinforced Kraft Paper Tape

China Pack Suppliers Company is a manufacturer of Water Activated Reinforced Kraft Paper Tape for heavy-duty carton sealing where strength, security, and paper-based packaging performance all matter. This water activated carton sealing tape uses kraft backing, starch adhesive, and reinforced yarn or fiberglass inside the structure. Once moistened, the adhesive bonds into corrugated carton fibers and helps form a strong, tamper-evident closure for heavy shipments, export cartons, and high-security warehouse packing lines.

Product Overview

Water Activated Reinforced Kraft Paper Tape is made for carton sealing work where light paper tape or ordinary pressure-sensitive tape may not hold the seam firmly enough. The kraft backing sits closely on corrugated cartons, while the internal yarn or fiberglass reinforcement helps the seal stay stable during lifting, stacking, compression, and long-distance transport. Typical thickness is controlled around 140-180 um, giving the tape enough body for heavy-duty closure without difficult dispenser feeding.

The starch adhesive stays dry before use and becomes active only after water is applied. With a typical adhesive coat weight of 25-35 gsm, the moistened adhesive wets the carton surface and forms a stronger paper-to-paper bond as it dries. Forced removal should leave visible fiber tear, making handling damage easier to inspect and separating reinforced gummed kraft tape from standard pressure-sensitive carton sealing tape.

This reinforced gummed kraft tape suits export carton sealing tape applications where cartons face vibration, repeated handling, pallet movement, compression, or mixed warehouse conditions. On recycled cartons, slightly dusty surfaces, and heavier boxes, the reinforced layer helps reduce seam splitting. Before large-volume use, smooth unwind, even wetting, and flat feeding should be checked on the actual carton grade.

Benefits

1. Reinforced yarn or fiberglass improves carton seam strength during stacking, lifting, compression, and export handling.
2. Water activated starch adhesive bonds with corrugated carton fibers after dispenser moistening.
3. Kraft backing, usually around 70-90 gsm, lays flat and gives the seal a clean paper-based appearance.
4. 3-way or cross reinforcement supports MD and CD strength, with typical MD tensile strength of 90-140 N/25 mm and CD tensile strength of 45-75 N/25 mm.
5. Tamper-evident closure helps show carton surface damage if the tape is removed.
6. Batch checks can include thickness, slit edge, roll winding tension, wet activation speed, MD/CD tensile strength, and fiber tear after drying.

What Makes This Tape Suitable for Heavy Export Cartons?

Heavy export cartons need more than quick surface tack. Inside the kraft paper structure, yarn or fiberglass reinforcement adds strength across the carton seam and helps the seal resist splitting under pressure. After moistening, the starch adhesive bonds into the carton surface rather than only sticking on top of it. For heavier corrugated boxes, 3-way or cross reinforcement improves strength in both machine direction and cross direction, making the tape suitable for industrial shipments and high-security package closure.

TDS

Product Packaging

Applications

– Heavy export cartons for industrial parts, tools, hardware, and machinery accessories

– High-security carton sealing where visible tamper evidence is required

– Recycled corrugated cartons that need stronger paper-to-paper bonding

– Warehouse and fulfillment lines using water activated tape dispensers

– Cross-border cartons exposed to vibration, compression, and repeated handling

– Bulk carton sealing work requiring stable roll quality and repeatable wet activation

How Should Bulk Rolls Be Checked Before Carton Sealing?

Before bulk use, each batch should be checked for more than width and color. A practical test should include total thickness, roll winding tension, slit edge quality, wet activation speed, MD/CD tensile strength, and carton fiber tear after drying. The test should be made on the actual corrugated cartons used in production, including recycled cartons or slightly dusty surfaces. A short sealing trial can show whether the starch adhesive wets evenly, whether the kraft backing lays flat across the seam, and whether the seal holds after pressure, stacking, and handling simulation.

Product production

FAQ

Is this tape the same as ordinary water activated tape?

No. It has reinforced yarn or fiberglass inside the kraft paper structure for heavier cartons and stronger sealing.

Does it need water before application?

Yes. The starch adhesive must be moistened by a manual or electric dispenser before sealing.

Can it be used on recycled corrugated cartons?

Yes, but a carton sealing test is recommended before bulk use.

What should be tested before large-volume production?

Check width, thickness, wet activation, MD/CD tensile strength, dispenser feeding, slit edge quality, and carton fiber tear.