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The diaper closure system consists of three components: the frontal tape, side tapes, and the elastic waistband. Collectively, these account for approximately 15% of the total production cost and directly determine the product's fit, leakage prevention, and wearer comfort.   Frontal tape and side tape materials have undergone multiple rounds of technological iteration. Early designs utilized polypropylene film paired with laminate adhesive tape; however, the tape tended to collect debris and lose significant adhesiveness after repeated use, while also sticking uncomfortably to the skin—a design now limited to a few low-end products. Subsequent developments introduced polypropylene woven mesh tapes paired with mechanical fasteners (hook-and-loop); while these offered excellent peel and shear performance, they suffered from a heavy plastic feel and a stiff texture. Currently, non-woven frontal tapes are the most widely adopted due to their significant cost advantages, although their peel stability and overall performance fall short of soft, plush-style alternatives. Mainstream mechanical fasteners in the current market include Y-shaped, S-cut, and elastic big ear composite designs; increased automation in production lines has further spurred the creation of diverse tape structures.   Elastic waistband materials have also seen continuous upgrades. Early foam materials, characterized by insufficient elasticity and poor recovery, have been largely phased out. Elastic films offer low tensile resistance and strong shape recovery, providing a softer, more comfortable fit. Today, spandex-based materials—balancing cost-effectiveness with tensile performance—have become the industry standard, with some products integrating elastic materials directly into the tape design to create distinctive "large-ear" elastic structures.   New material technology is the core driver of quality upgrades in diapers, enabling products to evolve toward greater user-friendliness. Softness and thinness are the industry's primary development trends, and diaper closure systems continue to innovate and improve in response to these two key demands.

1. General Rules 1.Safety: Use only virgin raw materials, no fluorescent agent/formaldehyde; meet export certification rules. 2.Matching: Choose specs by product grade to balance cost and performance. 3.Supply: Keep 2–3 spare suppliers to avoid stockout & delayed shipment. 4.Price: Quotation valid for 14 days, freight & chemical prices update real-time. 5.Traceability: Each batch with test reports & batch numbers for tracking.   2. Core Material Standards 2.1 Top Non-woven Fabric 12–18gsm hydrophilic PP cloth, no holes/stains, penetration ≤1s, no fluorescence. Check water absorption, flatness & tensile strength on delivery. 2.2 ADL Layer 18–25gsm thermo-bond fabric, even liquid dispersion, no breakage during cutting. For mid & high-end baby/adult diapers. 2.3 Fluff Pulp Virgin softwood pulp only, no recycled pulp. Free of mildew, lumps & impurities. Check fluffiness and uniform white color upon receiving. 2.4 SAP Absorbent Polymer 3 grades: premium import, standard domestic, economy type. Key indexes: absorption rate, AUL & gel strength; low powder loss required. 2.5 Breathable PE Back Film 0.018–0.025mm thickness, waterproof & breathable, pinhole-free, high tensile strength. 2.6 Front Tape & Side Tape Standard black joint as default; confirm custom joint style with clients in advance. Stable repeated adhesion, smooth cutting without burrs. 2.7 Elastic Band High stretch elastic with ≥90% recovery rate, no breakage or weird odor. 2.8 Hot Melt Adhesive Stable viscosity in hot/cold weather, no odd smell, compatible with high-speed machines. 2.9 Absorbent Paper Fast water uptake & high wet strength, no crumbs or holes after liquid absorption.

Breathable backsheet film is a critical raw material for diapers and sanitary pads, serving to block liquids while allowing moisture to escape. Manufacturers often encounter issues such as skin irritation and moisture retention, film breakage, or failure to meet breathability standards—problems usually stemming from incorrect selection of raw material parameters. To evaluate the quality of breathable film, focus on three core indicators: Water Vapor Transmission Rate (WVTR), hydrostatic pressure, and tensile strength. A high WVTR allows for the rapid dissipation of internal heat and moisture, helping to prevent diaper rash in infants and reduce the discomfort of stuffiness during menstruation. Adequate hydrostatic pressure is essential to prevent side leakage, making it a mandatory standard for sanitary pads and overnight diapers. High tensile strength ensures the film withstands the rigors of high-speed production lines without breaking, thereby boosting manufacturing efficiency. Breathable films on the market generally fall into "high-breathability" and "standard" categories. Lightweight sanitary pads are best suited for thinner films with moderate-to-high breathability, whereas infant diapers and extended-length overnight products require a balance of high hydrostatic pressure and strong tensile performance. Some low-cost raw materials achieve higher breathability by reducing film thickness, which increases the risk of pinhole leaks; in the long run, this leads to higher post-sales losses and ultimately raises total production costs. We specialize in supplying breathable films, coated films, and wrapping films for hygiene products. We offer customization of basis weight, breathability, and waterproofing parameters based on the positioning of the client's end products. Every batch undergoes comprehensive testing for breathability, waterproofing, and tensile strength. Our products are compatible with domestic and international high-speed hygiene product lines, and we support everything from small-batch sampling to stable, long-term volume supply—providing a one-stop solution for raw material procurement challenges regarding diaper and sanitary pad backsheets.

The ultra-thin absorbent core is the key structure of disposable diapers, enabling ultra-light wearing experience and efficient fluid absorption. Primarily composed of air-laid paper (absorbent bulk paper) and Super Absorbent Polymer (SAP), it has become the prevailing technical solution in the industry. Air-laid paper features fluffy structure and excellent toughness with outstanding liquid spreading performance. It evenly distributes bodily fluid, fully encapsulates and immobilizes SAP particles to prevent powder migration and dust leakage. It also maintains the structural integrity of the core and effectively eliminates clumping and layer separation after fluid absorption. Its inherent fibrous pores facilitate moisture dissipation and further improve air permeability. Serving as the SAP core absorbent and retention medium, SAP delivers ultra-high absorption capacity and superior fluid locking performance. It quickly entraps large volumes of urine and effectively inhibits rewetting. Adopted with layered lamination and precision powder deposition technologies, the composite structure achieves significant thickness reduction without compromising absorption efficiency. Furthermore, functional nonwoven fabrics are applied as auxiliary layers on both sides of the core. The top nonwoven fabric accelerates fluid distribution and air exchange, while the bottom breathable PE film provides reliable leak-proof protection. The synergistic combination of diverse materials produces high-performance ultra-thin cores that excel in lightness, softness, absorption and air permeability. If you want to know more, please click www.glinknonwoven.com

Spunlace nonwovens are high-end flexible materials formed by utilizing high-pressure, fine water jets to entangle fibers. As a high-performance substrate, they require no chemical binders and possess a unique combination of attributes—including softness, skin-friendliness, breathability, comfort, exceptional strength, and low linting—making them widely applicable across numerous core sectors such as hygiene and personal care, healthcare, industrial wiping, and synthetic leather production. In the realm of personal care, spunlace nonwoven fabric serves as a primary raw material for disposable hygiene products such as wet wipes, facial cleansing cloths, and flushable toilet wipes. Utilizing premium raw materials like fluff pulp and viscose, it demonstrates superior liquid and oil absorption capabilities while exhibiting minimal linting and shedding; furthermore, it offers excellent versatility for both wet and dry applications. Whether in the form of baby wipes designed to gently care for delicate skin, or eco-friendly flushable toilet wipes that are biodegradable and easily dispersible, these products effectively meet the public's daily hygiene and care requirements, offering both convenience and safety. In medical and healthcare settings, spunlace fabric is truly indispensable. Characterized by an absence of chemical residues, excellent biocompatibility, and high levels of cleanliness, it is utilized in products such as medical gauze, surgical towels, and disposable protective supplies. It effectively blocks contaminants, absorbs wound exudates, and minimizes irritation to both the skin and the wound site, thereby balancing both safety and practicality.  Bolstered by these multiple core advantages, spunlace nonwoven fabric continues to drive the evolution of hygiene products toward higher standards of safety and premium quality.  

In recent times, the escalating geopolitical conflicts and volatile situation in the Middle East have triggered ripple effects across the global diaper and diaper raw materials industries. These impacts have permeated critical areas—including raw material costs, logistics and transportation, and foreign trade orders—posing severe challenges for foreign trade suppliers of diaper raw materials as well as downstream enterprises.   On the cost front, crude oil prices have remained volatile at elevated levels. Consequently, prices for core diaper raw materials—specifically Polypropylene (PP) and Polyethylene (PE)—have continued their upward trajectory. Specialized diaper components—such as spunbond non-woven fabrics, PE films, and elastic waistband materials—have seen actual price increases ranging from 8% to 18%. Concurrently, instability in raw material supplies has caused periodic delivery delays at certain upstream factories, further intensifying the strain on the diaper raw material supply chain. Regarding logistics, transit conditions along the Persian Gulf and Red Sea routes have been erratic; the Strait of Hormuz has repeatedly closed and briefly reopened. Vessels have been compelled to reroute around the Cape of Good Hope or divert to alternative ports in the Middle East, resulting in a 40% increase in voyage distance. Shipping schedules have faced delays of one to three months, and some cargo shipments have even been forced to turn back mid-voyage or have been "rolled over" (left behind) at ports. Furthermore, war risk insurance premiums have skyrocketed, and both sea freight rates and surcharges have climbed sharply, significantly driving up foreign trade costs. From a market perspective, export orders to the Middle East have become polarized. Demand for basic-tier diapers—considered essential necessities—has stabilized, leading to relatively steady demand for corresponding basic-grade raw materials. However, demand for high-end diaper categories has been slashed by half, resulting in a parallel decline in orders for premium raw materials. Simultaneously, payment collection risks have surged; instances of Middle Eastern clients losing contact, coupled with the depreciation of local currencies, have caused the risk of bad debts regarding final payments to skyrocket.   In the long term, the de-risking of petrochemical supply chains for diaper raw materials and the diversification of foreign trade export markets are emerging as key trends. Regions far removed from conflict zones—such as Latin America and Africa—are becoming the new focal points for strategic foreign trade expansion in the diaper raw materials sector. As a supplier of diaper raw materials, we are actively optimizing our supply chain and enhancing our resilience to effectively navigate these uncertainties.

The topsheet and diversion layer are key to sanitary products’ comfort and performance. The top layer directly contacts skin, quickly conducting fluids inward without absorbing them, requiring high permeability to keep skin dry. The ADL diversion nonwoven layer lies between the top layer and absorbent core, accelerating liquid diffusion, guiding fluid into the core, and reducing rewet for better dryness. Most hygiene products use soft hot-air nonwovens for these layers, made from ES bicomponent fibers (PP/PE, PET/PE) via carding and thermal bonding. ES fibers have core-sheath or symmetric structures; thermal bonding melts low-melting components to form point bonds, creating a stable 3D structure with high resilience, softness, and excellent liquid transport. This material absorbs over 10 times its weight in liquid. Thermal-bonded nonwovens are now widely used in high-end sanitary napkins and diapers. If you want to know more, please click www.glinknonwoven.com

Diaper polymer, or Super Absorbent Polymer (SAP), is the core component of modern disposable diapers. Its exceptional water absorption and retention capabilities have revolutionized the user experience of care products. Typically appearing as white particles, it is a water-swellable polymer with a three-dimensional network structure, synthesized from raw materials such as starch and acrylates through polymerization. Its key advantage lies in its remarkable water absorption capacity—able to absorb hundreds of times its own weight in water. Upon contact with urine, it swells rapidly to form a stable hydrogel, which firmly locks in moisture through osmotic pressure, hydrogen bonding, and other mechanisms, resisting rewetting even under external pressure. This feature keeps diapers dry for extended periods, minimizes skin contact with urine, and effectively reduces the risk of diaper rash. As a key component of the diaper’s absorption layer, it works in synergy with fluff pulp: fluff pulp aids in urine diffusion, while the polymer is responsible for efficient water locking. Their combination ensures rapid absorption while enhancing user comfort. High-quality diaper polymers undergo rigorous safety testing, being non-toxic, harmless, and skin-friendly, making them suitable for infants, young children, and adults alike. Today, they have become an indispensable core material for disposable hygiene products, driving the development of care products toward being thinner, more efficient, and more comfortable.

Our anaerobic Biodegradable Hygiene Film for Diaper Backsheet stand as a benchmark of environmental credibility in the hygiene industry, backed by authoritative global certifications and third-party test validations that fully prove their superior biodegradable performance. Certified in line with ASTM D5511, ISO 15985 and GB/T33797-2017, our diaper Backsheet Film Raw Materials have passed rigorous tests by 9 world-renowned institutions, including US Eden Lab, Chinese Academy of Sciences (CAS), UK InterTek, SGS, Ningbo Customs Technical Center and Hong Kong Certification Center. US Eden Lab’s 3-year full-cycle test verified our PE/PA co-extruded film achieved an absolute degradation rate of over 94% in 159 weeks, with a 100% relative degradation rate and a symbiotic effect with natural microorganisms. CAS’s 270-day test showed our PE film’s 27.1% degradation rate outperformed Eden’s concurrent data, establishing a positive degradation trend. We also hold the international Green Leaf Certificate from InterTek, with Sinopec’s test confirming our PE and PP raw materials hit 11.39% and 11.70% 90-day degradation rates. Additionally, microplastic and toxicity tests prove our films degrade into harmless substances with no microplastic residue, complying with GB 15979-2024 hygiene standards. This comprehensive certification system makes our ABT biodegradable (ABT) diaper backsheet film a reliable, eco-friendly choice for global hygiene brands. If you want to know more, please click www.glinknonwoven.com  

As plastic pollution becomes a growing global concern, our anaerobic biodegradable (ABT)  backsheet film in diaper offer a sustainable solution for the hygiene industry.Built on polymer science and integrated with microbiology, biochemistry, and electrochemistry, our ABT formulation is embedded into plastic structures during granulation. In oxygen-free environments like landfills, the film fully decomposes into carbon dioxide, methane, ammonia (if nitrogen is present), and mineralized inorganic salts—leaving no microplastics behind. Tests on PE/PA films show an absolute degradation rate exceeding 94% after 159 weeks under simulated landfill conditions. This Biodegradable Film Raw Materials delivers seven key advantages: 100% complete degradation: Over 3 years, the relative degradation rate reaches 100%+. Cost efficiency: Cuts overall costs by over 30% compared to PLA, PBAT, and PHA. Long shelf life: 2-year storage period with no special preservation requirements. Eco-safe: Degradation products are non-toxic and harmless to soil. Global compliance: Meets ASTM D5511, ISO 15985, and GB/T 33797-2017 standards. Strong performance: Matches ordinary plastic’s strength, with high heat resistance and barrier properties. No extra investment: Works with traditional plastic production equipment. As a core material for baby diapers, adult diapers, and sanitary napkins, our ABT diaper backsheet film balances performance, affordability, and sustainability, paving the way for a plastic-free future in hygiene care. If you want to know more, please click www.glinknonwoven.com  

As the core category of disposable sanitary products, the absorption performance, wearing comfort, and structural stability of diapers directly depend on the quality of the core matching materials. Specialized carrier tissue is not an ordinary household paper product, but an indispensable functional substrate in the diaper absorption system, which is the key hub connecting the non-woven fabric layer and the core absorption layer. Data shows that by 2024, the market size of baby diapers in China will exceed 68 billion yuan, and the growth rate of adult incontinence products market will exceed 18% for four consecutive years, driving an annual demand for specialized toilet paper of over 1.2 million tons. The industry is accelerating its upgrading towards ultra-thin, high functionality, green and safe products. （1） Two core application scenarios 1. The upper and lower wraping layers of the core body (mainstream application, accounting for 75%) wrap the fluff slurry and SAP particles to prevent the core body from shifting, lumping and faulting during wearing and activity, and lock the absorbed gel to avoid leakage and reverse osmosis. Industry data shows that using qualified specialized wrapping paper for diapers can reduce the core fracture rate to below 0.3%, while replacing regular paper products can cause the fracture rate to soar to over 8%, greatly affecting the user experience. 2.The surface flow guiding lining layer (standard for high-end models, accounting for 25%) is laid under the non-woven fabric layer, using capillary action to achieve rapid diffusion of urine, avoiding local liquid accumulation and improving absorption efficiency. Test data shows that high-quality carrier tissue raw materials can shorten the urine absorption speed from 60 seconds to 25-35 seconds, reduce the amount of reflux by more than 60%, and effectively reduce the problems of red buttocks and stuffy skin in babies. If you want to know more, please click www.glinknonwoven.com

The global diaper waterproof  backsheet  film industry is entering a rapid development stage, and it is expected that the industry scale will continue to grow by 2025, especially in the Asian, European, and North American markets. With the changing population structure and the continuous upgrading of consumer demand, the demand for high-performance waterproof membranes in the global diaper market continues to increase. According to the latest market data, the average annual growth rate of the global diaper waterproof film market is expected to reach 6.5%, and the Chinese market will maintain its leading position in the coming years, occupying a large share of the global market. The raw materials for diaper closelike backsheet film are mainly composed of synthetic materials such as polypropylene and polyethylene. With the advancement of technology, the functionality and environmental friendliness of waterproof film have also been greatly improved. In recent years, with the deepening of the concept of green environmental protection, the demand for environmentally friendly waterproof membranes in the market has shown a growing trend. It is expected that by 2025, environmentally friendly waterproof membranes will account for over 30% of the global diaper waterproof membrane market. From the perspective of application fields, breathable full laminated backsheet film not only has a wide market demand in adult care products, but also occupies an important position in infant care products. With the intensification of the global aging trend, the demand for adult diapers and care products has sharply increased, further driving the development of the waterproof membrane market. As consumers' demands for comfort and breathability of diapers gradually increase, waterproof membrane materials are developing towards higher breathability, stronger waterproofness, and lower environmental impact.  If you want to know more, please click www.glinknonwoven.com