Adhesive Paper & Film Tape Water Activated Paper Tape Custom Packing Kraft Paper

Reinforced water-activated kraft paper tape is a special packaging material whose adhesion is activated by water. It combines the dual characteristics of reinforced structure and water-activated bonding, with the following core features:

一. Material and Structural Characteristics

1:Composite Reinforced Substrate
It uses kraft paper as the base layer, with high-strength fibers (such as glass fiber, polyester fiber, or cotton thread) embedded in the middle to form a "paper-fiber-paper" sandwich structure (reinforced layer).

Features:
Extremely high tensile strength, capable of withstanding the pulling force during heavy-duty handling or long-distance transportation, and not easy to break.
The fiber layer enhances the overall rigidity of the tape, avoiding the easy twisting and deformation of ordinary tapes.

2:Natural Degradable Materials
The kraft paper is made from virgin wood pulp, and both the fibers and adhesives are environmentally friendly materials, fully degradable, free of plastic components, and compliant with international environmental standards (e.g., FSC certification).

二. Adhesion Activation Mechanism

1:Principle of Water-Activated Bonding
The back of the tape is coated with a water-soluble starch adhesive, which requires moistening (e.g., with water or a damp sponge) to activate its stickiness.

Process:
When exposed to water, the adhesive absorbs water, swells, and penetrates the surface of the bonded material (e.g., corrugated fiberboard). After drying, it forms a dual bond of physical anchoring + chemical adhesion, with significantly higher bonding strength than ordinary pressure-sensitive tapes.

2:Adhesive Properties
Low initial adhesion: Almost non-sticky when dry, allowing easy position adjustment; after moistening, the adhesion increases rapidly, forming a permanent bond that is difficult to peel off or tamper with after drying.

Strong environmental resistance:
Moisture-resistant and low-temperature-resistant (-10°C~60°C), not easy to unbond in high-humidity environments, suitable for maritime shipping, cold storage, and other scenarios.
Excellent aging resistance, maintaining over 90% of its adhesion after long-term storage (over 5 years).

三. Functional Advantages
High Security and Anti-Counterfeiting
After bonding, it integrates with the bonded material (e.g., cardboard box). Forced tearing will cause simultaneous damage to the tape and the box, leaving obvious signs of tampering, making it effective for preventing theft or tampering. Suitable for sealing high-value items and confidential documents.

Operational Convenience
Simple tools required: Only water or a moistening tool (e.g., sponge roller) is needed for activation, no additional equipment (e.g., hot melt gun) is required, suitable for manual or semi-automatic assembly line operations.

Good conformability: The kraft paper substrate has a certain degree of flexibility, allowing it to closely adhere to curved or uneven surfaces (e.g., wooden boxes, plastic barrels).

Tear Resistance and Load-Bearing Capacity
The reinforced fibers increase the transverse/longitudinal tear strength to 3-5 times that of ordinary tapes, with a single-point load-bearing capacity of over 50kg (depending on specifications), suitable for heavy-duty packaging (e.g., industrial equipment, building materials).

四. Application Scenarios
Logistics and Warehousing: Sealing and anti-theft of high-value goods and dangerous goods, such as electronic products, medical devices, and luxury goods.

Food and Medicine: Scenarios with high environmental requirements, such as organic food packaging and pharmaceutical carton sealing (compliant with safety standards like FDA).

Industry and Construction: Packaging of heavy equipment in wooden boxes and reinforcement during building material transportation, replacing traditional plastic packing straps.

Cross-Border E-Commerce: Compliant with the "plastic-free" import requirements of Europe and the United States, avoiding plastic pollution penalties (e.g., EU PPW regulations).

Reinforced water-activated kraft paper tape is centered on the core advantages of high strength, environmental protection, and anti-counterfeiting, making it particularly suitable for scenarios with high requirements for safety and sustainability. Its only limitation is the need for moistening operation, which is not suitable for extreme water-free environments. However, its comprehensive performance is irreplaceable in the high-end packaging field.