Water Activated Kraft Paper Tape Jumbo Roll

Adhesive Pack Tape Company is a manufacturer of Water Activated Kraft Paper Tape Jumbo Roll for tape converters, paper tape processors, and carton sealing operations that need stable paper-based sealing material. The roll uses kraft paper backing with a dry starch gum layer that activates after wetting. Each batch is checked for paper weight, glue coat uniformity, tensile strength, roll flatness, storage sensitivity, and sample wetting results such as dry streaks, edge lift, and carton fiber tear.

Product Overview

A Water Activated Kraft Paper Tape Jumbo Roll has to perform well before and after conversion. The wide roll should unwind smoothly, slit cleanly, and keep a flat profile when rewound into finished carton sealing rolls. The kraft paper backing gives the material its body, tear resistance, feeding behavior, and edge stability. Weak paper edges may crack during cutting or tear later when the tape passes through a wetting dispenser.

The starch gum layer stays dry and non-tacky during storage, so the roll can be handled without blocking. Once water reaches the coated side, the gum rehydrates and starts bonding with carton fibers. For a starch gum paper tape roll, dry appearance is only a starting point. A more useful check is wet activation: the coating should absorb water evenly across the width, activate without dry streaks, and hold the carton surface without early edge lift. Glue coat weight is usually controlled at 19-38 g/m2 reference, depending on paper grade and required wet tack.

For non-reinforced grades, typical kraft paper weight is 65-85 g/m2 with total thickness around 0.12mm. For a reinforced kraft paper tape jumbo grade, fiber threads can be built into the paper structure, increasing total weight to about 100-125 g/m2 and thickness to around 0.15mm. This structure improves sealing resistance on heavier cartons while keeping enough flexibility for wetting, pressing, and dispenser feeding.

Benefits

• Kraft paper backing supports clean slitting, smooth rewinding, and stable finished roll edges.
• Dry starch gum coating helps reduce roll blocking before water activation.
• Glue coat control improves wetting response across the roll width.
• Reinforced grades may reach around 239 N/25mm MD tensile strength.
• Fiber reinforcement helps heavy cartons resist seal breakage after pressing.
• Storage at 20C-30C and 50%-70% RH helps protect paper and gum stability.

What Makes the Paper Backing Important in Jumbo Roll Performance?

The backing is more than a base for the gum layer. In a jumbo roll, kraft paper affects slitting edge quality, winding tension, tensile strength, and how the converted tape feeds through a water activated dispenser. Paper that is too weak may tear during rewinding or sealing. Paper that is too stiff may not wet and press evenly onto the carton. For reinforced grades, fiber threads add resistance for heavier cartons, but the structure should still stay flexible enough for smooth application. Before bulk conversion, the backing should be checked for edge cracks, uneven moisture absorption, and strength loss after wetting.

TDS

Product production

Applications

• Converting into gummed kraft paper tape roll products for carton sealing.
• Finished roll production for manual or automatic water activated dispensers.
• Corrugated carton sealing where fiber tear and tamper evidence are required.
• Reinforced sealing rolls for heavy cartons and export carton closure.
• Warehouse carton sealing programs using paper-based sealing material.
• Plain or printed kraft paper gummed tape material for carton identification.

How Does the Starch Gum Layer Activate After Water Contact?

The starch gum coating stays dry before use, making the jumbo roll easier to store, slit, and rewind. After water is applied to the gummed side, the dried adhesive layer rehydrates and bonds with carton fibers. Activation quality depends on coating uniformity and wetting control. A practical wetting test should confirm that the glue activates evenly across the tape width, without dry stripes or weak edges. The sealed carton should also be checked after pressing. Too little water weakens initial tack, while excessive water may soften the paper, slow setting, and reduce fiber tear performance.

FAQ

Is this supplied as finished tape?

No. It is supplied as a jumbo roll for slitting and rewinding into finished water activated tape rolls.

Can the tape be made with reinforcement?

Yes. A fiber reinforced option is available when higher carton sealing strength is required.

What should be checked before production use?

Check wetting uniformity, gum activation, edge lift, slitting edge, and carton fiber tear.

How should the jumbo roll be stored?

Store it at 20C-30C and 50%-70% RH in a dry shaded area.