What is A Water Activated Tape?

Water-activated tape is an environmentally friendly packaging material with excellent potential for development. As global awareness of environmental protection continues to grow and degradable technologies advance, the demand for biodegradable tapes is increasing.

Its applications are expanding beyond traditional flexible packaging, and the development of sustainable materials offers even broader prospects for this product.

fiberglass reinforced

Fiberglass Reinforced

cutted paper tape

Water Activated Tape

Water-activated kraft paper tape, made from kraft paper base material and coated with edible plant starch adhesive, activates its adhesive properties when moistened.

Its primary advantages include being eco-friendly, non-polluting, recyclable, tamper-proof, highly adhesive, and having a long shelf life. When stored in dry conditions, the adhesive remains effective for an extended period. The kraft paper tape is widely used for sealing export cartons, covering markings on boxes, and even for printing applications.

By comparison, self-adhesive kraft paper tape, made from laminated kraft paper and coated with acrylic or natural rubber adhesive, offers features like waterproofing, strong adhesion, high tensile strength, anti-curling, and excellent weather resistance, making it suitable for more complex packaging needs.

Additionally, reinforced water-activated kraft paper tape, which incorporates high-strength fiberglass within the kraft paper, enhances tensile strength and adhesion. It becomes strongly adhesive when moistened, providing a secure seal for boxes and meeting the global trend toward eco-friendly products. This type of tape is widely used for heavy-duty packaging and transportation.

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The production process of water-activated kraft paper tape is highly precise. The adhesive application uses high-precision equipment to evenly coat the kraft paper with plant-based glue. Depending on product requirements, hot or cold adhesive application techniques are employed.

Hot adhesive coating is ideal for high-adhesion products, while cold adhesive is better suited for regular adhesive tapes. After coating, the kraft paper undergoes a drying process, typically using hot air or infrared drying methods, to ensure the adhesive cures completely, thereby enhancing the tape’s performance and durability.

In addition to its outstanding functional qualities, kraft paper tape also stands out for its environmental benefits. Its degradation relies primarily on microbial activity.

In natural environments, bacteria and fungi gradually break down kraft paper into carbon dioxide, water, and other organic substances, which can serve as soil fertilizers, promoting microbial growth and improving soil structure.

The degradation rate of kraft paper depends on factors such as temperature, humidity, and microbial activity. In moist and warm environments, it can decompose completely within a few months to a year.

Starch-based adhesives, as eco-friendly bonding agents, also degrade quickly in natural conditions, typically breaking down within weeks to months into glucose and other simple sugars before converting into carbon dioxide and water. Starch adhesives are non-toxic, harmless, and do not pollute the environment. Their high purity further accelerates degradation, making them an ideal eco-friendly adhesive choice.

cutted tape
Slitter Rewinder for Making Water Activated Tape

Kraft paper tape is also renowned for its high strength and durability.

Made with natural fiberglass materials, it withstands significant pressure and impact during heavy-duty packaging, transportation, and storage, ensuring the safety and integrity of packaged items.

Whether used for sealing large items or securing heavy goods, it provides reliable support, preventing loosening or damage. Furthermore, kraft paper tape’s waterproof and aging-resistant properties, along with its weather resilience, enable it to adapt to various demanding environments, further extending its application range.

Overall, water-activated kraft paper tape is not only a high-performance packaging material but also a key representative of the packaging industry’s shift toward environmental sustainability.

In the future, as consumer demand for eco-friendly products grows and technological advancements continue, developing higher-performance adhesives and optimizing production processes will further promote the adoption of this product, contributing to the global environmental protection efforts and injecting new vitality into the packaging industry.

 

Last Updated on 03/07/2025 by Jota Machinery

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