Blog

Various polymer materials serve as the core substrates for disposable absorbent hygiene products, determining key performance attributes such as absorbency, breathability, and wearer comfort. ADL commonly utilize ES bicomponent composite fibers, which are formed by combining two polymer materials and feature either sheath-core or symmetrical structures. Airthrough nonwovens produced from these fibers exhibit a point-bonded structure that is lofty, soft, and resilient; their interconnected pore structure offers excellent liquid distribution capabilities, making them widely used as ADL in sanitary napkins and diapers.   Super absorbent polymers (SAP) serve as the core absorbent material; characterized by a three-dimensional network structure and molecular chains rich in hydrophilic groups, they efficiently absorb and lock in moisture. However, as SAP absorbs water and forms a gel, it is prone to clumping and bulging; consequently, it is typically combined with fluff pulp to form the absorbent core, leveraging the pulp's wicking action to mitigate issues such as gel blocking and clumping. Breathable microporous polyolefin films serve as the backsheet material, blocking liquid water while allowing water vapor to pass through, thereby effectively alleviating the stuffiness and humidity issues associated with traditional plastic films. In terms of development trends, innovation in these polymer materials continues. Top-sheet materials are evolving toward low re-wet properties and eco-friendly functionality, while hot-air composite nonwovens and apertured films are increasingly adopted for acquisition layers. Driven by constraints on timber resources, future absorbent cores will likely reduce reliance on fluff pulp in favor of green, functional polymer fibers, moving toward fully synthetic core structures.

The comfort and safety of sanitary pads are directly determined by raw materials. For the top sheet, hot air nonwoven delivers soft texture and low irritation, ideal for sensitive users. If a dry surface is preferred, perforated nonwoven fabric accelerates liquid penetration and reduces stickiness. The absorbent core is the key component. A combination of premium fluff pulp and SAP super absorbent polymer enables fast liquid abosorbency and strong water locking, effectively preventing rewetting and keeping the surface dry. Fluff pulp quickly disperses incoming fluid across the core, while super absorbent polymer traps moisture inside its molecular structure.  The backsheet should adopt breathable PE film, which blocks leakage while releasing moisture to avoid stuffiness and bacterial growth.Flexible nonwoven fabric is used for leak guards and side wings to enhance anti-leak performance with proper lamination. Avoid raw materials containing artificial fragrances, fluorescent agents and other irritants to lower allergy risks. Whether for in-house production or OEM sourcing, manufacturers shall balance safety, air permeability and absorption performance. Proper matching of raw materials helps produce comfortable and healthy sanitary pads catering to diverse consumer demands. If you want to know more, please click www.glinknonwoven.com

As an innovative material, spunbond nonwovens are widely used in the production of baby diapers and sanitary napkins. Their unique properties have significantly improved the quality and user experience of these two types of products. From raw materials to finished products, the value of spunbond nonwovens is reflected in many aspects.   First of all, the production process of spunbond nonwovens is relatively simple. The polymer fibers are formed into nonwoven fabrics by high-pressure spraying through the spunbond process. This process not only improves production efficiency, but also ensures the uniformity and consistency of the material. As a raw material, spunbond nonwovens have good water absorption and breathability, which makes them ideal for baby diapers and sanitary napkins.   In baby diapers, spunbond nonwovens are usually used as inner layer materials. Its hydrophilic properties allow urine to be quickly absorbed and locked, keeping the surface dry and reducing the occurrence of diaper rash. At the same time, its softness ensures comfortable contact with baby's skin, avoiding friction and irritation. In addition, good breathability can regulate internal humidity, prevent bacterial growth, and enhance the overall comfort of babies.   In sanitary napkins, the application of spunbond nonwovens is also indispensable. Its outer layer usually adopts water-repellent non-woven fabric to prevent liquid leakage while maintaining good breathability to ensure the hygiene and comfort of users. The softness and water absorption of spunbond non-woven fabrics make sanitary napkins more comfortable during use and reduce skin irritation.   In addition, the environmental protection characteristics of spunbond non-woven fabrics are also increasingly valued. With the popularization of the concept of sustainable development, many manufacturers have begun to use degradable materials to reduce the impact on the environment. This makes spunbond non-woven fabrics not only meet user needs in terms of function, but also meet the expectations of modern society for environmental protection.   In summary, spunbond non-woven fabrics play an important role in baby diapers and sanitary napkins. From the selection of raw materials to the production of finished products, the superior performance of spunbond non-woven fabrics not only improves the quality and comfort of the products, but also provides users with a safer and healthier use experience. With the continuous advancement of technology, the application prospects of spunbond non-woven fabrics will be broader. If you want to know more, please click www.glinknonwoven.com

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.

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