The Advantages of Structural Adhesives in Sanitary Pads
The use of structural adhesives in sanitary pad manufacturing constitutes a critical step in ensuring both product structural integrity and user safety. Compared to traditional bonding methods, modern structural adhesives-specifically formulated for sanitary pads (typically hot-melt pressure-sensitive adhesives)-offer numerous distinct advantages and have become a standard component of automated production lines.
Efficient Production, Enhanced Speed
The structural adhesive utilizes hot-melt, instant-bonding technology, eliminating the need for a drying process; bonding and curing occur almost simultaneously, thereby significantly shortening production cycles. A single high-speed production line can manufacture hundreds of sanitary pads per minute-a feat made entirely possible by the rapid setting capabilities of the hot-melt adhesive.
Broad Material Compatibility
Sanitary pads are composed of multiple layers of heterogeneous materials, including non-woven fabrics, PE films, fluff pulp, and elastic components. The structural adhesive effectively bonds materials with varying polarities and surface tensions-such as non-woven fabrics to PE backing films, or elastic waistbands to perforated films-ensuring that all layers are securely bonded and remain free from delamination.
Environmentally Safe, Non-Toxic, and Harmless
This high-quality structural adhesive has obtained national environmental certification and is free from harmful substances-such as migratory fluorescent agents and formaldehyde-fully complying with the GB33372-2020 standard. The adhesive remains stable at room temperature; it does not volatilize or emit odors, and direct contact with the skin will not trigger allergic reactions or irritation.
Controllable Bonding Strength for Greater Peace of Mind
The peel strength of the adhesive backing has been rigorously calibrated. The current national standard, GB/T 8939-2018, specifies a peel strength range of 100–800 mN. This ensures that the product remains securely in place-without shifting-during movement or while turning over, while simultaneously preventing adhesive residue or damage to undergarments when removed.
They possess excellent biodegradability, thereby minimizing environmental pollution.
They exhibit high viscosity, which enhances the durability and structural stability of the sanitary pads.
They feature high tensile strength, enabling them to withstand specific levels of tensile stress and external forces.
As public environmental awareness continues to rise, the market outlook for biodegradable sanitary pads appears highly promising. As a key material in the production of these biodegradable products, the practical value of structural adhesives is poised to garner increasing recognition. Moving forward, research and application in the field of structural adhesives are expected to emerge as a major developmental trend, holding the potential to foster a more environmentally friendly and safe market for biodegradable sanitary pads.