Reinforced Gummed Kraft Paper Tape

Adhesive Pack Tape Company is a manufacturer of Reinforced Gummed Kraft Paper Tape for heavy carton sealing, export packaging, and industrial packing lines where ordinary kraft tape is not strong enough. This tape is built with kraft paper, water-activated gummed starch adhesive, and internal fiberglass yarn or plant-based yarn reinforcement. Once moistened and pressed onto corrugated board, the adhesive penetrates the carton fibers and leaves visible fiber tear if the seal is removed.

Product Overview

Reinforced Gummed Kraft Paper Tape is made for cartons that need to stay closed through stacking, vibration, warehouse transfer, and long-distance shipping. The product is not simply paper with glue. Its strength comes from a combined structure: kraft paper plies, a water-activated adhesive layer, and yarn reinforcement embedded inside the tape body. This structure helps the carton seam resist pulling, splitting, and rough handling during transport.

For regular production grades, the kraft paper can be built with 40-50 gsm top ply and 40-50 gsm bottom ply. This paper weight gives the tape enough body to cover carton seams cleanly, while still allowing it to lay flat on recycled corrugated board. The adhesive coat weight is usually 22-30 g/m2, adjusted according to tape grade, carton surface, and the wetting speed needed on the packing line. When activated correctly, the gummed adhesive does not stay only on the surface. It wets into the carton fiber and forms a stronger bond with the board.

The reinforcement can be made with fiberglass yarn for higher tensile strength or plant-based yarn for a more paper-focused construction. Lengthwise yarn helps carry pulling force along the carton seam, while cross-direction or diamond reinforcement reduces tearing across the tape width. During routine production checks, sample rolls can be reviewed for wet activation, smooth unwind, print clarity, slitting accuracy within +/-1 mm, and fiber tear after bonding. This is one reason reinforced water activated kraft tape is often used for export cartons, industrial parts, tools, appliances, and high-value shipments.

Benefits

• Stronger closure than plain kraft paper tape
• Gummed adhesive bonds into corrugated carton fibers
• Internal yarn pattern improves MD and CD tear resistance
• Carton seams hold better during stacking and transit
• Visible fiber damage helps show seal removal
• Printable paper surface supports carton marks and warnings
• Custom slitting fits manual and automatic tape dispensers

How do kraft paper gsm, yarn reinforcement, and gummed adhesive affect sealing performance?

Sealing performance depends on how the paper, adhesive, and reinforcement work together. Higher kraft paper gsm improves body strength and helps the tape sit flat across wider carton seams. Fiberglass reinforced gummed paper tape adds tensile support inside the paper, which is useful when cartons are pulled, dropped, or compressed during handling. With a typical total thickness of 0.13-0.17 mm, the tape keeps a practical balance between stiffness, dispenser running, and seam coverage. After water activation, the adhesive forms a durable bond on suitable corrugated board, and removal usually causes visible paper fiber tear instead of clean peeling.

TDS

Product production

Applications

• Heavy corrugated carton sealing for industrial goods
• Export packaging exposed to stacking and vibration
• E-commerce cartons needing tamper-evident closure
• Warehouse packing lines using water-activated dispensers
• Recycled carton sealing where plastic tape may edge lift
• Printed export cartons with handling marks or warnings
• Hardware, tools, appliance, and equipment packaging
• Large carton seams requiring wider tape coverage

When should reinforced gummed kraft paper tape be used for export cartons?

This tape is a practical choice when carton closure failure may cause repacking work, product exposure, or visible transport damage. For heavier cartons, 70 mm or 72 mm width provides wider seam coverage than narrow tape. In long-distance export packaging, MD tensile strength above 230 N/25mm and CD tensile strength around 90-115 N/25mm help the seam resist pulling and side tearing. Custom printed reinforced paper tape can also carry batch marks, warning text, carton direction marks, or security messages without using a separate label.

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FAQ

Is this tape different from normal kraft paper tape?

Yes. Normal kraft tape may use paper and adhesive only. This tape adds internal yarn reinforcement for higher strength.

Can it be used with automatic dispensers?

Yes. It works with manual and automatic water-activated tape dispensers when roll width and core size are matched.

Can the tape be printed?

Yes. 1-3 color printing is available for logos, handling marks, warning text, or carton identification.

Which width is better for heavy cartons?

For heavy carton sealing, 70 mm or 72 mm is usually preferred because it gives wider seam coverage and better holding area.