ECO as a factory specializing in the production of tamper evident tapes, we have a deep understanding of the characteristics of water-based glue, oil-based glue, and hot melt adhesive.
We skillfully utilize these three types of adhesives in the production process to ensure that our products meet the highest standards of performance and quality.
To deepen everyone’s understanding of tapes, I will share my analysis of the three types of adhesives in tapes, hoping to be helpful:
Water-Based Adhesive:
Water-based adhesive is formed by emulsifying acrylic or polyurethane resin in water as a solvent using specialized emulsification equipment.
Its major advantages include versatility, environmental friendliness, and low cost.
Water-based adhesives are commonly used in coating applications, such as water-soluble PA, water-soluble PU, as well as functional coatings like film adhesives, oil-feel waxes, and scraping color pastes.
However, it has drawbacks like poor film-forming ability and low wash fastness, and PU cannot adhere to hot air glue.
Oil-Based Adhesive:
Oil-based adhesive uses oil-based solvents (such as toluene, DMF, acetone) to dissolve acrylic or polyurethane, resulting in good film-forming ability and adhesion.
It is widely used in coating applications and is the current commonly used coating adhesive.
Drawbacks include environmental concerns due to the use of oil-based solvents, especially considering the rising prices of petroleum, leading to the use of lower-quality solvents in some cases.
Hot Melt Pressure-Sensitive Adhesive:
Hot melt pressure-sensitive adhesive is a type of pressure-sensitive adhesive made by heating a mixture of synthetic rubber, resin, rubber oil, etc., to a molten state, then coating it on substrates such as cotton paper, cloth, or plastic film.
Its significant advantages lie in low cost and strong adhesive properties.
Widely used in various packaging applications, it adapts to different materials and exhibits strong adhesion to challenging materials.
However, its stickiness is noticeably affected by temperature changes.
Generally speaking, designing or improving the formulation of pressure-sensitive adhesives involves mastering three key performance indicators of the adhesive:
1. Peel strength of the pressure-sensitive adhesive
2. Tack time of the pressure-sensitive adhesive
3. Initial adhesion of the pressure-sensitive adhesive
As the requirements vary with different application scenarios, grasping the quantitative relationships between formulation and performance is essential for creating a high-quality pressure-sensitive adhesive.
In our factory, we carefully consider the characteristics of these adhesives and flexibly choose the most suitable one based on customer requirements and product specifications.
For the production of tamper evident tapes, we often use hot melt pressure-sensitive adhesive to ensure environmental friendliness and safety.
Additionally, for products requiring excellent film-forming properties and adhesion, we may utilize oil-based adhesive. Furthermore, water-based adhesive finds extensive use in areas with high requirements for cost and bonding strength.
Our goal is to continually improve product quality while staying attuned to environmental trends.
Given potential environmental issues with oil-based adhesives, we approach their selection and use with caution, actively seeking more environmentally friendly alternatives.
Through the flexible choice of adhesive types, we ensure that our produced tamper evident tapes meet the standards expected by customers in terms of environmental impact, performance, and cost.
Overall, we will continue to strive to provide high-quality, environmentally friendly tamper evident security tape products to meet the evolving needs of the market and customers.