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English Views: 0 Author: Site Editor Publish Time: 2025-04-11 Origin: Site
The open-close diaper closure system primarily consists of a frontal tape, side tapes, and an elastic waistband, accounting for approximately 15% of diaper production costs. Its quality and performance are closely tied to the overall diaper functionality, critically impacting wear comfort, fit, leakage prevention (side and rear), and freedom of movement for infants.
Frontal Tape for Diaper
Elastic Waistband for Diaper
Elastic Side Ears for Diaper
Magic Hook for Diaper
Early Stage: Frontal tapes used polypropylene film paired with composite adhesive side tapes. While this addressed basic wearability, the adhesive weakened after repeated use, leading to poor peel/shear performance, skin stickiness, and limited reusability. This design persists only in some low-end diapers today.
Post-Hook-and-Loop Introduction: The frontal tape saw multiple innovations, with polypropylene woven hook patches becoming the most widely adopted. These offered improved peel/shear performance when paired with hook-and-loop fasteners but lacked softness and had a pronounced plastic feel.
Current Stage: Nonwoven frontal tapes are now widely used due to cost advantages, though their peel/shear performance and stability fall short of velour-type tapes. Hook-and-loop products have diversified into composite forms such as Y-type, S-cut, and elastic "big ear" designs. With increased automation in diaper production, more manufacturers now adopt in-line hook-and-loop composite techniques, enabling further structural innovations in side tapes.
Early Stage: Low-cost foam materials were used but exhibited poor stretch and recovery, now largely obsolete.
Comparative Findings: Foam-based waistbands required high initial opening force, whereas elastic films demonstrated gentler stress-strain curves, needing less force for equivalent elongation and enhancing user comfort. Elastic films also showed high recovery in repeated stretching, preventing diaper sagging or slippage.
Current Stage: Spandex yarns are widely adopted for their low cost and excellent stretch properties. Some diaper designs integrate elastic materials with side tapes, creating elastic "big ear" structures.
The PP tape of diapers is an adhesive tape that is arranged on the back waist of the diaper. After the diaper is worn, it can be adhered to the front waist to form a "pants" type. It is made by combining PP cast film, CPP, BOPP or OPP and hot melt adhesive. The PP tape is generally composed of a base film and a lining film attached to the back waist of the diaper, and the base film and the lining film are mainly formed by hot-melt bonding of a plastic film and an adhesive layer. The plastic film is generally selected from PE and PVC materials with certain strength and thickness. The PP tape has the advantages of being firm, not affected by season, and having a beautiful appearance and low noise.
2-Ply PP Tape for Diaper
3-Ply PP Tape for Diaper
The mechanical closure system of diapers is a type of fastening mechanism that uses mechanical means to secure the diaper around the wearer.
Hook Tape: This is the primary component that provides the gripping force. It is made from materials like molded hooks and pressure-sensitive hot melt adhesive. The hooks are designed to firmly engage with the loop material, ensuring a secure fit.
Loop Material: This can be either textile-based or nonwoven-based. The loop material provides a surface for the hooks to attach to. Nonwoven loop materials are popular due to their softness and breathability, while textile-based loops offer a cloth-like feel.
Secure Fit and Comfort: Mechanical closure systems provide a reliable and adjustable fit, ensuring that the diaper stays in place without being too tight or too loose. The soft, flexible nature of the materials used enhances comfort for the wearer.
Multiple Re-closures: Unlike adhesive-based closures, mechanical closures can be opened and closed multiple times without losing their effectiveness. This is particularly useful for caregivers who may need to adjust the diaper or check on the wearer.
Resistance to Contamination: Mechanical closures are less likely to be affected by contaminants such as baby oil and talcum powder, which can interfere with the adhesive properties of traditional closure systems.
Baby Diapers: Widely used in premium baby diapers to provide a secure and comfortable fit. The mechanical closure system allows for easy adjustment and re-closure, making it convenient for parents and caregivers.
Adult Incontinence Products: Also used in adult incontinence briefs, where a secure and reliable closure system is essential for maintaining dignity and comfort.
Y-bond Mechanical Multilane Tapes: A specific type of mechanical closure system that features multiple narrow hook lanes instead of a single wide lane. This design provides more flexibility and conforms better to the wearer's body, enhancing comfort and fit.
Customizable Options: Mechanical closure systems can be customized in terms of size, color, and design to meet the specific needs of different diaper manufacturers and market segments.
The mechanical closure system is an important innovation in the diaper industry, offering a balance of security, comfort, and convenience that meets the needs of both babies and adults.
Pursuit of Softness and Thinness: To enhance hook-and-loop softness, ultra-soft hooks have been developed—representing a revolutionary advancement as the thinnest and softest option. Paired with frontal tapes, they deliver superior peel/shear performance, aligning with lightweight and softness trends. Softer side tape hooks also improve tactile feel and reduce skin irritation risks.
Cost-Saving Innovations: Designs eliminating frontal tapes are gaining attention. Novel hook technologies (e.g., patterned hooks) can directly bond with diaper backsheet nonwovens, meeting performance requirements. These systems offer smoother, more consistent peeling compared to traditional composite hooks while enhancing visual appeal and product differentiation.
Pull-Up Pants Market: world’s pull-up pants market is rapidly expanding, primarily using spandex-based full elastic waistbands. Advances in elastic film technology have introduced machine-direction stretch films, enabling pull-up designs that closely resemble underwear in appearance and wear experience. This improves comfort and discretion, particularly for adult incontinence users, reducing psychological burdens among mild incontinence sufferers.
Lonsun as a manufacturer specializing in the closure systems for diapers. Our team is dedicated to creating reliable and innovative solutions that ensure the comfort and security of babies and their parents.
Our closure systems are designed with the highest standards of safety and functionality in mind. We use high-quality materials that are both durable and gentle on the skin. Our products are engineered to provide a snug and secure fit, preventing leaks while allowing for easy application and removal.
We offer a variety of closure options to meet different needs, from adhesive tapes to hook-and-loop fasteners, ensuring that our products are versatile and suitable for a wide range of diaper designs. Our commitment to quality and innovation drives us to continuously improve our products, making diapering easier and more convenient for everyone.
If you have any specific requirements or questions about our closure systems, feel free to reach out. We're here to help you find the perfect solution for your diaper manufacturing needs.
Advances in material science are pivotal in enhancing diaper performance, enabling more user-centric designs. "Softness" and "thinness" dominate current trends, demanding further innovation in fastening systems. In a competitive market, superior fastening solutions can significantly boost brand differentiation and consumer recognition.
