Reinforced nylon (especially glass fiber reinforced grades such as PA6-GF and PA66-GF) is a mainstream and high-performance material choice for e-bike wheel hubs, particularly motor-integrated hubs. It offers an excellent balance of strength, stiffness, toughness, heat resistance, wear resistance, and processability, while also enabling lightweight design.

This material is commonly used in mid- to low-end or urban commuter e-bikes, where reinforced nylon hubs are more widely adopted. Its advantages in terms of weight reduction and cost efficiency are especially evident in models that do not demand extreme performance. Additionally, corrosion resistance is a notable selling point.

Manufacturers typically address the inherent limitations of the material through thoughtful design—such as the extensive use of metal inserts and structural optimization—and by selecting high-performance grades to meet specific application needs.

Key Application Advantages
1. Significant Weight Reduction – The Primary Advantage
Extended Range: A lighter hub requires less energy for motor drive, directly increasing battery life.

Improved Handling: Reduced rotational inertia allows for quicker acceleration and deceleration, delivering a more agile and responsive ride.

Enhanced Comfort: Lower unsprung mass enables the wheel to better follow road surface variations, reducing vibration transmitted to the frame and improving overall comfort.

- This is the most critical advantage. Nylon has a much lower density compared to aluminum alloy (approx. 1.15–1.4 g/cm³ vs. 2.7 g/cm³). Even when reinforced with 30–50% glass fiber, the material density typically remains below 2.0 g/cm³.

- Reducing unsprung mass is crucial for e-bikes.

2. Cost Efficiency (Especially in Mass Production)
Material Cost: Reinforced nylon granules generally cost less than high-grade aluminum alloys.

Processing Cost: Injection molding offers high production efficiency and enables complex parts to be formed in one step, eliminating the need for multiple machining processes (e.g., casting, CNC, turning, drilling), thus significantly reducing per-unit cost.

Post-Processing Cost: Molded nylon parts typically require no additional surface treatment (e.g., sandblasting, anodizing), which is often necessary for aluminum hubs.

3. Design Flexibility
Injection molding allows for highly complex geometries, internal ribbing, and integrated functional features such as:
Mounts for sensors
Cable routing channels
Specialized heat dissipation structures
Such features are difficult or costly to achieve using traditional metal processing. It also enables easier aerodynamic optimization.

4. Corrosion Resistance
Nylon offers excellent resistance to chemical corrosion (salt, water, cleaning agents) and does not rust. This is a major advantage for bikes used in rainy, humid, or salt-treated winter road environments—reducing maintenance needs.

5. Shock Absorption & Noise Reduction
Nylon has inherent damping properties that help absorb road impact and reduce vibration and motor noise transmission—improving ride comfort and quietness.

6. Strong Mechanical Properties
Glass fiber reinforcement significantly enhances the strength, stiffness, hardness, and dimensional stability of nylon, allowing it to handle the structural loads and motor torque required by wheel hubs. Its impact resistance often exceeds that of metal.

Datasheet

Polypropylene Homopolymer 40% Long Glass Fiber Reinforced

Injection Molding Process for E-Bike Wheel Hubs
Electric bike hubs—especially complex motor-integrated designs—are mainly produced using injection molding.

The key process steps include:

1. Material Pre-Treatment (Drying)
Critical Step! Nylon is highly hygroscopic. Excessive moisture leads to:

Melt viscosity drop → flash, burrs

Defects such as bubbles, silver streaks, poor surface

Hydrolytic degradation → serious loss of mechanical properties (strength, toughness)

Requirement:
Must be thoroughly dried before use.
Target moisture content: < 0.2% (preferably down to 0.1%)

Method:
Use a desiccant dryer:
PA6: 80–90°C,
PA66: 90–110°C,
Duration: ≥ 4–6 hours
Hopper must be heated (~80°C) to prevent reabsorption of moisture.

2. Injection Molding Parameters
Barrel Temperature:

PA6-GF: 240–280°C (increasing from rear to front); avoid exceeding 290°C to prevent degradation.

PA66-GF: 270–310°C; do not exceed 320°C.

Principle:
Use the lowest possible temperature that ensures good flow and complete filling to reduce thermal degradation.
High GF content may require slightly higher temps.

Mold Temperature:
Critical factor! Influences crystallinity, shrinkage, internal stress, surface finish, and mechanical properties.

Recommended range: 70–110°C

Mold Temp Features
70–85°C Fast cooling, shorter cycle time, lower crystallinity, higher shrinkage and internal stress, lower dimensional stability and surface gloss. Risk of warping.
85–110°C Strongly recommended for hubs. Enhances:

Crystallinity
Dimensional stability (uniform and predictable shrinkage)
Mechanical strength, stiffness, HDT
Surface gloss
Reduces warping, internal stress, post-shrinkage
→ Requires mold temperature controllers

Injection Pressure / Speed:
Medium to high pressure due to high melt viscosity
High-speed injection aids filling of complex hub structures (thin walls, long flow paths), minimizing weld line weakening and flow marks
Avoid jetting
Use multi-stage injection:
High-speed for bulk filling
Low-speed/low-pressure at the end to reduce stress and prevent overpacking during switchover

Holding Pressure / Time:
Holding Pressure: 50–80% of injection pressure
Too high: internal stress, flashing, difficult demolding
Too low: sink marks, voids, insufficient filling

Holding Time:
Crucial! Must be long enough to ensure continued packing before gate freeze-off
Short holding time → major cause of warpage/sink marks
Adjust based on wall thickness, mold temp, material—generally longer for hubs

Cooling Time:
Sufficient cooling needed to ensure part solidification and deformation-free ejection
Higher mold temps and thicker walls require longer cooling
Efficient cooling system design (near high heat load zones) is key to shortening cycles and improving quality

3. Mold Design Considerations
Gate Design:
Hubs are large and complex → typically use multi-point hot runners or large cold runners
Gate location and number are critical: affect flow balance, weld line position/strength, internal stress, and warpage
→ Precise flow simulation and design needed

Venting:
Essential to prevent burns, short shots
Add vent grooves (typically 0.02–0.04 mm depth) at:
End of flow paths
Base of ribs
Around inserts

Ejection System:
Large hub parts require strong and evenly distributed ejection (ejector pins/blocks)
Ensure smooth, synchronous ejection to avoid stress whitening or deformation

Wear Resistance:
GF is abrasive → molds, especially gates/runners/cavity surfaces, suffer wear
Use high-hardness, wear-resistant steels (e.g., H13) with surface treatments (nitriding, hard chrome plating, PVD coatings)

Cooling Channel Design:
High-efficiency, evenly distributed cooling is crucial to control mold temperature, reduce cycle time, and minimize warpage

4. Post-Treatment (Optional but Recommended)
Annealing:
Heat parts to 100–120°C (below nylon's melting point) for several hours, then slowly cool

Purpose:

Achieve moisture equilibrium before use
Prevent unpredictable dimensional changes (swelling) and performance fluctuations (toughness ↑, strength/stiffness ↓)
Especially important for PA6 hubs (also applicable to PA66)

Machining (if needed):
For high-precision areas (bearing seats, mounting holes), minor machining (turning, drilling) may be required

MP resin, with its full name as copolymer of vinyl chloride and vinyl isobutyl ether, its other name is VC Copolymer MP resin, Vinyl Chloride Copolymer Resin.

MP resin for inks

As an excellent binding vehicle for composite printing inks, it is used in wide range of fields. sinosunman MP resin has the following advantages:

Ø  Good solubility: Soluble in most of solvents, such as benzenes, acetones and esters commonly used in inks production, in addition, the dissolved solution has a higher degree of transparency.

Ø  Excellent blending property: Easily blended with other ink binding vehicles to enhance its working performance, such as CPP, EVA and CEVA resins.

Ø  High dispersivity: It has good dispersing and wetting properties to inks and dyes, ensuring the pigments fully display the primary color and transferability.

Ø  Superior adhesion: The polymer chains contain a large quantity of ether bonds, which have strong adhesive strength to BOPP, OPP, PET and other plastic film.

Ø  Good stability: There is no reactive double bonds, no saponifiable ester bonds in the resin, and the chlorine atoms in the molecular link are very stable. These offer ink layers strong resistance to heat, light, weathering, yellowing and chalking.

MP resin for coatings

The Anti-corrosion performance index of MP resin is higher than that of Chlorosulfonated Polyethylene and Chlorinated Rubber coatings, therefore it is widely used in the fields of anti-corrosion coatings:

Ø  Industrial anti-corrosion coatings, such as factory buildings, equipment, pipeline, tanks, municipal engineering, piers and harbors, etc.

Ø  Marine coatings, applicable to the various parts of the hull, resisting sun exposure and seawater erosion.

Ø  Transport paints, such as containers, transport machinery, dangerous chemicals tankers.

Ø  Light metals primer, top paint, such as garage doors and windows, roof rain sinks, balcony, lampposts and road crash barriers.

Ø  Large-scale key projects, such as bridge, ocean and energy engineering.

Gloves are the most commonly used protective tools in the laboratory besides goggles. There are many types of gloves, and different gloves have different uses.

1. Natural rubber (latex)

Latex gloves, made from natural rubber, typically lack a lining and are available in both clean and sterile versions. These gloves can provide effective protection against alkalis, alcohols, and a variety of chemical dilution aqueous solutions, and can better prevent corrosion from aldehydes and ketones.

2. Polyvinyl chloride (PVC) gloves

The gloves do not contain allergens, are powder-free, have low dust generation, low ion content, strong chemical corrosion resistance, can protect almost all chemical hazardous substances, and also have anti-static properties. Thickened and treated surfaces (such as fleece surfaces) can also prevent general mechanical wear, and thickened types can also prevent cold, with an operating temperature of -4℃ to 66℃. Can be used in a dust-free environment.

PVC gloves grading standards:

Grade A products, no holes on the surface of the gloves (PVC gloves with powder), uniform powder, no obvious powder, transparent milky white color, no obvious ink spots, no impurities, and the size and physical properties of each part meet customer requirements.

Grade B products, slight stains, 3 small black spots (1mm≤diameter≤2mm), or a large number of small black spots (diameter≤1mm) (diameter>5), deformation, impurities (diameter≤1mm), slightly yellow color, serious nail marks, cracks, and the size and physical properties of each part do not meet the requirements.

3. PE gloves

PE gloves are disposable gloves made of polyethylene. These gloves are waterproof, oil-proof, anti-bacterial, and resistant to acids and bases. Note: PE gloves are safe to use with food and are non-toxic. It is better to keep PVC gloves away from food, especially if it's hot.

4. Nitrile rubber gloves

Nitrile rubber gloves are usually divided into disposable gloves, medium-duty unlined gloves and light-duty lined gloves. These gloves can prevent erosion by grease (including animal fat), xylene, polyethylene and aliphatic solvents; they can also prevent most pesticide formulations and are often used in the use of biological components and other chemicals. Nitrile rubber gloves do not contain protein, amino compounds and other harmful substances, and rarely cause allergies. They are silicone-free and have certain antistatic properties, which are suitable for the production needs of the electronics industry. They have low surface chemical residues, low ion content and small particle content, and are suitable for strict clean room environments.

5. Neoprene gloves

Similar to the comfort of natural rubber, neoprene gloves are resistant to light, aging, flexing, acid and alkali, ozone, combustion, heat and oil.

6. Butyl rubber gloves

Butyl rubber is only used as a material for medium-sized unlined gloves and can be used for operations in glove boxes, anaerobic boxes, incubators, and operating boxes; it has super durability against fluoric acid, aqua regia, nitric acid, strong acids, strong alkalis, toluene, alcohol, etc., and is a special rubber synthetic resistant liquid gloves.

7. Polyvinyl alcohol (PVA) gloves

Polyvinyl alcohol (PVA) can be used as a material for medium-sized lined gloves, so this type of gloves can provide a high level of protection and corrosion resistance against a variety of organic chemicals, such as aliphatic, aromatic hydrocarbons, chlorinated solvents, fluorocarbons and most ketones (except acetone), esters and ethers.

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Chloroprene rubber (CR), a synthetic material, is a common choice for making timing belts because of its good physical and chemical traits. Neoprene timing belts resist aging well and work best in regular transmission systems, but some situations might need different materials.

1. Aging resistance of chloroprene rubber timing belts

• Neoprene resists oxidation well, helping timing belts stay flexible and strong during regular use. This prevents the material from getting fragile or breaking down due to oxidation, making it good for machines exposed to air for extended periods, as it reduces the possibility of cracks or surface hardening.
• Heat resistance: The operating temperature range is generally between -20°C and 100°C, and it can operate for a long time in a medium-high temperature environment; under high temperature conditions, although its performance will decrease slightly, the aging process can be delayed by adding heat-resistant agents.
• Anti-ultraviolet performance: Neoprene has moderate anti-ultraviolet ability, but the surface may oxidize under long-term exposure to strong light, resulting in color changes and the formation of tiny cracks.
• Moisture resistance: Neoprene has good resistance to moisture and is suitable for high humidity environments. It is not easy to deteriorate due to moisture intrusion.
• Chemical corrosion resistance(Chloroprene Rubber SN-236T): It has good corrosion resistance to grease, weak acid, alkali and some chemical solvents, which slows down the aging rate, but is not suitable for contact with strong oxidizing chemicals.

2. Applicable scenarios of chloroprene rubber timing belts

• Industrial transmission equipment(Chloroprene Rubber SN-244X): Applicable to power transmission of conventional mechanical equipment, such as textile machinery, packaging equipment and general processing equipment.
• Medium temperature environment: It performs well in medium and high temperature (below 100°C) application scenarios, such as industrial drying equipment or HVAC systems.
• Indoor environment: Equipment with low requirements for UV resistance, such as indoor automation equipment or low maintenance systems.
• Medium humidity and chemical environment: It can be applied to equipment that contacts oils and weak acid and alkali environments, such as food processing machinery and light chemical equipment.

3. Limitations of aging resistance of chloroprene rubber timing belt

• Prolonged exposure to temperatures above 100°C can speed up the aging process, leading to reduced flexibility or hardening of the timing belt. When working in such conditions, fluororubber or silicone rubber belts are the preferred choice.
• Extended exposure to strong sunlight can cause surface oxidation and cracking, which reduces the lifespan of the belt. Polyurethane belts or those with anti-UV coatings are advisable for outdoor setups.
• Strong acids, bases, or concentrated chemical solvents can cause corrosion if the material isn't resistant enough.

4. Methods to extend the aging resistance of chloroprene rubber timing belts

• Reasonable storage: Store in a dry, ventilated, light-proof environment to avoid ultraviolet radiation and high temperature.
• Regular inspection: Regularly check whether there are cracks or hardening on the surface of the timing belt during use, and remove oil and chemical residues in time.
• Adding antioxidants: By adding antioxidants or anti-ultraviolet ingredients during the manufacturing process, the aging resistance of the timing belt can be significantly improved.
• Optimize working conditions: Avoid running the synchronous belt under excessive tension or extreme temperature to reduce the risk of aging.

Chloroprene rubber synchronous belts resist oxidation, heat, and moisture well, so they age slowly and work for many standard jobs. Still, they might not work as well when it's very hot, there's a lot of ultraviolet light, or things are very corrosive. You can make these belts last longer by storing and using them properly and keeping up with regular maintenance. Because of this, they're a solid, affordable choice.

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1. Research and development of chloroprene rubber

Chloroprene rubber & Neoprene latex is famous for its weather resistance, excellent physical properties, chemical resistance and oil resistance. Therefore, chloroprene rubber is widely used in rubber accessories that are exposed to the air and require oil resistance and high mechanical properties, such as: hoses, conveyor belts, transmission belts, cable sheaths, dust covers, shock pads, air capsules and other rubber products that require weather resistance, oil resistance, high physical properties and good flexural properties. The trade name of LANXESS chloroprene rubber is Baypren, which is translated into Bayer Ping in Chinese. It evolved from the original Perbunan C of Bayer Company and was produced in the Dormagen factory in Germany.

2. Trade names and naming principles of LANXESS chloroprene rubber

• Trade names of LANXESS chloroprene rubber

LANXESS chloroprene rubber has a variety of brands to meet the needs of different products and different application environments. For specific brands, please refer to the LANXESS rubber product brand table. The main varieties of Lanxess nylon-butadiene rubber currently sold in China are: Baypren126 is a molded grade, which is resistant to high and low temperatures, has good physical and mechanical properties, excellent process, and does not burn or stick to rollers.

Baypren 116 has a lower Mooney viscosity than Bapren126, and the rubber compound has good fluidity. It is a grade for extruded products, with stable extruded dimensions, smooth surface, and high efficiency.

Baypren711 is a vulcanization-adjustable grade, used for adhesive tapes. It has a high sulfur content, good processability of the rubber compound, good adhesion to reinforcing materials, and is wear-resistant.

Baypren 210 is a universal brand. It has excellent comprehensive performance and meets the processing requirements of different processes and products. The price is relatively low.

Baypren 230 (SN-238) is an extra-high Mooney grade with high mechanical strength. It is suitable for high strength and blending with other grades to achieve special product performance and process requirements.

Baypren 114 is a pre-crosslinked grade. It is suitable for extruding high-performance thin-walled and precise-size products, and the extruded products are resistant to collapse. Such as continuous vulcanization production of automotive wiper strips and other products and processes.

• Naming principles of LANXESS chloroprene rubber

LANXESS chloroprene rubber consists of a product name plus a 3-digit number. The product name is: Baypren, which is translated as Bayer Ping.

The brand name is represented by a 3-digit number, and Baypren 126 is used as an example as follows:

The first digit indicates the crystallization tendency, 1 slight/2 medium/3 strong crystallization (general brand); sulfur content, 5 low sulfur/6 medium/7 high sulfur (sulfur-adjusted brand).

The second digit indicates the Mooney viscosity: 1 low Mooney/2 medium/3 high Mooney.

The third digit indicates special properties: 4 pre-crosslinking; 5 pre-crosslinking plus xanthogenic acid disulfide adjustment; 6 xanthogenic acid disulfide adjustment.

The third digits 1 and 2 indicate the Mooney viscosity of the raw rubber and the tendency to form products. For example, the crystallinity of Baypren 111 is extremely low, while the crystallinity of Baypren 112 is low to moderate.

3. Future Development

1)The high-tech development of automobile products and the strengthening of safety, hygiene and environmental protection concepts have caused fundamental changes in rubber materials. Many general-purpose products will inevitably be replaced by special brands to adapt to their special properties. 

2) Modern rubber equipment is becoming more and more advanced and efficient, forcing the manufacturing process to be more and more perfect. Many product processes have consciously or unconsciously shifted from the original molding method to the injection method. This has led to an increase in demand for rubber compounds with good performance, long scorch time, and non-stick rollers. More attention is paid to injection rubber compounds with good fluidity. Lanxess's special Mooney rubber compound (Mooney can reach as low as 28 Mooney) chloroprene rubber brand was developed for this purpose.

3) The development of high-precision and cutting-edge technology requires many products with extremely high physical properties and low temperature resistance. In this regard, LANXESS already has a variety of special-functional chloroprene rubber grades available for selection, which need to be developed and utilized in combination with their functional requirements during product design and development, and explore newer and more scientific uses.

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CR modified materials are really popular these days.  A company called Shanghai Shuangpu Rubber Anti-Corrosion Lining Co., Ltd. has rolled out a bunch of different rubber linings, like CR, CR/NR, and NBR/CR. These products are proving to be quite useful across various sectors, including chemicals, electricity, steel, mining, and water treatment. You can see more about this in Figure 1.

Interestingly, Shanghai Shuangpu Rubber Anti-Corrosion Lining Co., Ltd. has done some side-by-side tests and discovered that certain fluoroprene rubbers made locally are performing on par with similar CR products that come from Japan and Germany. This is great news for the local industry, as it shows that we’re capable of producing high-quality materials that can stand shoulder to shoulder with the best from around the world. So, whether it’s keeping things from rusting or just making tough parts for machines, these rubber linings are definitely pulling their weight in various industries.

However, there are still few varieties of domestically produced fluoroprene rubbers, and there is no low-hardness fluoroprene rubber material. The existing main varieties, such as Chloroprene Rubber CR121, Chloroprene Rubber CR232, etc., are made of fluoroprene lining rubber sheets that are relatively hard, and the pre-vulcanized rubber sheets produced are very hard, making the pasting construction difficult. Further tests show that adding a large amount of softener to the formula can reduce the hardness, but when it reaches a certain amount, it will significantly affect the bonding strength. The production test also shows that the bonding strength of the cold-adhesive adhesive produced by domestic Chloroprene Rubber CR244 is completely up to the level of foreign Denka A90 Chloroprene Rubber and Bayprene 213. However, after being applied to the steel plate and rubber plate, the bonding retention time of the adhesive coating is significantly lower than that of the adhesive made of Denka A90 Chloroprene Rubber and Bayprene 213, and it is more obviously affected by the ambient temperature and humidity, which increases the difficulty of rubber lining construction of large equipment and increases the quality risk. It can be seen that there is still a lot of room for research and improvement in the material variety and application characteristics of domestic fluoroprene.

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What is Neoprene?

Neoprene, also known as polychloroprene, is a synthetic rubber made by the free radical polymerization of chloroprene and is used in a wide variety of applications. It was first introduced by DuPont and was used by the U.S. military during World War II the following decade. Although it is one of the earliest synthetic rubbers, it is still very popular today. Neoprene has a wide range of applications due to its strong physical properties, chemical resistance, and flame retardancy. Neoprene is typically molded by injection molding, transfer molding, or compression molding.

Properties of Neoprene

Neoprene has many excellent properties that make it a widely used synthetic rubber. As with any polymer, there are some disadvantages to consider when considering using Neoprene for your application. Click here to learn more about how to choose the right type of rubber to manufacture your product.

Common Applications of Neoprene

Neoprene is a very commonly used rubber polymer that has a wide range of uses. It is resistant to water, fire, ozone, sunlight, and many other chemicals, making it a very versatile material. These applications include refrigeration seals, Freon/air conditioning, engine mounts, engine coolant, oil and chemical tank linings, automotive gaskets and seals, and weather stripping.

Other examples of neoprene applications include:

Water Sports(Chloroprene Rubber SN-242A). Neoprene is commonly used in wetsuits due to its waterproof and insulating properties. It is also used in a variety of equipment for scuba diving, fishing, surfing, boating, and other water sports.

Everyday Use(Chloroprene Rubber SN-241). Neoprene is used in many household items we use every day, including mouse pads, smartphone cases, laptop bags, remote controls, dishwashing gloves, and even musical instruments.

Face Masks(Chloroprene Rubber SN-243). During the COVID-19 pandemic, neoprene was found to be an effective material for making face masks. Since then, many manufacturers have used it to produce protective masks.

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When taking care of your baby, the wetness indicator glue on the diaper is a caring little helper for parents. Wetness indicator adhesives, also known as wetness indicator glue, is a very magical special material that changes color when it encounters urine. The use of this material in diapers cleverly utilizes its color change characteristics in different acid and alkaline environments. It can intuitively show whether the baby has urinated, and promptly remind the caregiver to change the diaper, so that the baby's little bottom always stays dry and comfortable.

To achieve this practical function, the wetness indicator glue must meet several key requirements. The color change must be clear so that parents can see it at a glance; the color change must be timely and can quickly reflect the baby's urination situation; and the color is only displayed when necessary to avoid misjudgment and cause trouble to parents.

wetness indicator glue is not only powerful, but also has excellent environmental stability. No matter what the environmental conditions are, it can provide reliable color changes, making parents feel very at ease when using it.

The technical advantages of wetness indicator glue are very prominent. It changes color quickly and obviously. Once it comes into contact with urine, it changes color immediately, and parents can easily notice it. It has excellent color retention performance. After the color changes, the color lasts and will not fade easily, which is convenient for parents to observe.

There is almost no odor, which can create a fresh use environment for the baby. Even in a humid environment, it can maintain good performance. It has good stability and can stably play the color-changing function in different environments. It has excellent operating performance and is easy to operate during the production process, ensuring the quality and production efficiency of the product. With urine-displaying gel, taking care of your baby becomes more worry-free!

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The ADL functional chip of sanitary napkins is a component with special functions in sanitary napkins, and ADL stands for Acquisition Distribution Layer, which means diversion layer. It is usually located at a specific level of sanitary napkins, which can help menstrual blood and other liquids quickly infiltrate and evenly distribute, keeping the surface dry. At the same time, some chips also have multiple functionalities. The following is a specific introduction:

Material and Structure: ADL functional chips are often carried on non-woven fabrics and implanted or compounded with various functional materials through special processes. The functional chip of the cotton doctor sanitary pad is made of plant fiber material, which implants Ganoderma lucidum polysaccharides, negative ions, far-infrared, nano silver, etc. into non-woven fabric. Some chips also achieve their functions through a multi-layer structure, such as a urine odor removing sanitary pad chip, which includes a surface layer, a core layer, and a bottom layer. A first polymer absorption layer is set between the surface layer and the core layer, and a second polymer absorption layer is set between the core layer and the bottom layer. The core layer is a water absorbing cloth soaked in pure natural lily aldehyde essential oil, and the surface layer is made of chitosan fiber non-woven fabric. The layers are connected by hot pressing.

Functional characteristics:

Rapid flow and absorption: The chip can be paired with a dual lining flow guiding non-woven fabric to effectively help menstrual blood infiltrate, allowing liquid to quickly pass through the surface and be absorbed by the lower layer of absorbent material, reducing liquid residue on the surface of sanitary napkins, keeping the user's private parts dry, and improving user comfort.

Antibacterial and bacteriostatic: Some sanitary pad ADL chips contain antibacterial ingredients such as nano silver, chitosan fibers, etc., which can inhibit bacterial growth, reduce odors and gynecological disease risks caused by bacterial reproduction. For example, the above-mentioned anti urine odor sanitary pad chip, chitosan fiber non-woven fabric surface, antibacterial layer, and drug core layer have a synergistic effect of the triple antibacterial substances of lily aldehyde essential oil, which can inhibit and kill microorganisms at multiple levels.

Relieve menstrual discomfort: Some new chips use solid-state hydrogen technology or photocatalytic hydrogen production technology, such as the built-in hydrogen function chip in the Goodbye Payne Soothing Care sanitary pad, which releases hydrogen gas when it comes into contact with water. The released hydroxide ions not only accelerate blood circulation, unblock blockages, relieve menstrual pain, but also kill anaerobic bacteria and alleviate discomfort caused by their growth.

Other functions: The chip may also have far-infrared function, which can promote the dilation of human microvessels, accelerate blood circulation, and promote body metabolism; Or embed biological magnetic elements to perform magnetic therapy on the human body, coordinate human functions, and also promote the movement of negative ions to enhance sterilization effects. For more information, please click www.glinknonwoven.com.​

With the intensification of global population aging and fluctuations in infant birth rates, the demand for diapers in the market continues to grow. As a key component of diapers, the PE film raw materials market has also shown a good development trend. At present, there are numerous PE film production enterprises worldwide, and the market competition is fierce. Some large chemical enterprises dominate the market with their advanced production technology, stable product quality, and extensive sales network. At the same time, some emerging enterprises have gradually emerged in the market through continuous innovation and optimization of product performance. Driven by market demand, the development trend of PE film for diapers is mainly reflected in the following aspects:

High performance: Consumers have increasingly high performance requirements for diapers, not only hoping that they have good waterproof and leak proof performance, but also requiring them to have higher breathability, softness, and comfort. Therefore, the development of high-performance PE films has become an important direction for the industry's growth. For example, by improving production processes and material formulations, PE films with higher breathability and better softness have been developed to meet consumers' demand for high-quality diapers. 

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Environmental Protection: With the increasing awareness of environmental protection, people have put forward higher requirements for the environmental performance of diaper products. As a type of plastic product, the disposal of PE film after disposal has attracted much attention. In order to reduce the impact on the environment, some companies have begun to develop biodegradable PE film materials, such as biodegradable polyethylene (PBAT), polylactic acid (PLA), etc. These biodegradable materials can gradually decompose through the action of microorganisms in the natural environment, thereby reducing the harm of plastic waste to the environment.

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Functional diversification: In addition to basic waterproof, breathable, and protective functions, future diaper PE films will also develop towards functional diversification. For example, adding antibacterial agents to PE film to give it antibacterial function can effectively inhibit bacterial growth and reduce odor production; Alternatively, special treatment can be applied to the surface of the membrane to enhance its anti adhesion properties, making it easier to wear and remove diapers. 

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Intelligence: With the development of the Internet of Things and smart wearable technology, intelligent diapers have become a new hot spot in the market. Diaper materials PE film, as the outer material of diapers, will also play an important role in intelligence. For example, by embedding sensors in PE film, real-time monitoring of parameters such as urine volume and humidity can be achieved, and the data can be transmitted to a mobile app, making it convenient for parents to timely understand the physiological condition of their babies and provide more caring care for them. 

​For more information, please click www.glinknonwoven.com