Hygiene materials play an important role in daily life and medical environments, and hot melt adhesive is an adhesive commonly used in the manufacture and repair of hygiene raw materials. This article will introduce several common hot melt adhesives in hygiene wear products: construction adhesive, positioning adhesive, rubber adhesive, frontal tape adhesive, core adhesive, side tape adhesive, and urine adhesive.



Construction Adhesive:

Construction adhesive is a strong adhesive commonly used in the manufacture of hygiene materials. It has fast curing, high bond strength and good water resistance. Construction adhesive is suitable for connecting and repairing various materials such as rubber, plastic, cloth, etc.



Positioning Adhesive:

Positioning adhesive is a hot melt adhesive that bonds backing materials. In hygiene supplies, positioning adhesive is often used to fix medical tapes, wing pads, and other closure materials. It can provide reliable bonding and can be easily torn or peeled when needed.



Elastic Adhesive:

Elastic adhesive is a hot melt adhesive used to fix elastic bands and rubber bands. In hygiene supplies, elastic adhesive is often used to make masks, bandages, and other products that require a certain degree of elasticity. It has good adhesion and flexibility, which can ensure the firm fixation of the elastic band.



Frontal Tape Adhesive:

The frontal tape adhesive is a special-purpose hot melt adhesive, which is often used to fix the front waist unit and surgical gowns. It has good tensile strength and water resistance, which can ensure that the front waist adhesive is not easy to loosen or break during use.



Core Adhesive:

The core adhesive is a hot melt adhesive used to fix the core part of sanitary products. The core adhesive can provide reliable bonding effect and has good breathability and flexibility. It is often used to fix the core part of sanitary napkins, diapers and other products.



Side Tape Adhesive:

The side tape adhesive is a hot melt adhesive used to fix the left and right adhesive parts of sanitary products. It has good adhesion and flexibility, which can ensure that the side tape adhesives are firmly bonded during use and are not easy to fall off.



Urine Adhesive:

Urine adhesive is a special-purpose hot melt adhesive, which is often used to make urine testing products. It can react with urine to produce a visible color change, which is used to quickly detect specific substances in urine samples. Urine adhesive plays an important diagnostic role in sanitary products.



Summary: Hot melt adhesive plays an important role in sanitary products. Different types of hot melt adhesive are suitable for different application scenarios. Understanding the characteristics and uses of these hot melt adhesives will help you better understand and select sanitary products and ensure that they have good performance and bonding effects. Hot melt adhesive is an indispensable bonding agent both in daily life and in medical environments.

Diapers are a daily necessity for millions of families, but have you ever wondered about the science behind their absorbency and comfort? Let’s break down the key raw materials of diapers.



1. Fluff Pulp

The core of most diapers is made from fluff pulp derived from trees like pine or eucalyptus. This natural material provides bulk and initial absorbency, quickly soaking up liquids.



2. Super absorbent Polymer (SAP)

A game-changer in diaper technology, SAP is a synthetic compound (sodium polyacrylate) that can absorb 30 times its weight in water. It locks moisture away from the skin, keeping babies dry for longer.



3. Topsheet Nonwoven

Soft, breathable, hydrophilic layers like hot air though nonwoven or spunbond nonwoven are used for the outer cover and inner liner. These materials are designed to feel gentle on the skin while allowing airflow.



4. Adhesives and Elastic

Hot-melt adhesives secure the diaper’s tabs, while elastic bands around the legs and waist ensure a snug fit. These components are often made from synthetic rubber or polymers.



5. Backsheet Film (Waterproof Layer)

A polyethylene film prevents leaks, while microporous coatings in eco-friendly diapers allow vapor to escape, reducing irritation.

About NISO

With 10 years of expertise in diaper raw materials, we deliver:

1. Full-range Supply: Covering nonwoven fabric, SAP, PE film, etc., enabling one-stop procurement;
2. Certified Quality: SAP complies with GB/T 22905-2008 standards; wood pulp microbial count ≤100 CFU/g;
3. Customization: Adjust nonwoven fabric weight, SAP particle size, and other parameters to meet product specifications.

Hot melt adhesive is a kind of glue commonly used for bonding and fixing materials. The manufacturing process of hot melt adhesive involves multiple links, including raw material selection, formula design, mixing and melting, filtration and packaging. Common hot melt adhesive raw materials include thermoplastic resin, filler, thickener and stabilizer. In the production process, through reasonable formula design and production process control, hot melt adhesive products that meet different application requirements can be obtained.

Main features of hot melt glue:
1. Fast bonding: Hot melt adhesive has the characteristics of fast curing. Once applied to the surface of an object, it quickly cools and solidifies to form a strong bond.
2. Weather resistance: Hot melt adhesive has good weather resistance at room temperature and can maintain good bonding performance in a wide temperature range.
3. High bonding strength: Hot melt adhesive can form high-strength bonds on the surfaces of a variety of materials, including plastics, paper, cloth, wood, etc., and is suitable for bonding various sanitary materials.
4. Adjustability: The fluidity and curing time of hot melt adhesive can be controlled by adjusting the temperature to meet different application requirements.
5. Environmental protection: Hot melt adhesive usually adopts a solvent-free water-based system, does not contain harmful substances, is harmless to the environment, and meets the green environmental protection requirements of the sanitary material industry.

Application of hot melt adhesive in the hygiene materials industry

1.Construction adhesive

2.Positioning adhesive

3.Elastic adhesive

4.Laminated film adhesive

5.Frontal tape adhesive

6.Core adhesive

7.Side tape adhesive

As an important adhesive material for sanitary materials, hot melt adhesive has the characteristics of fast bonding, high strength, controllability and environmental protection, and is widely used in the sanitary materials industry. NISO is a professional supplier of hot melt glue for hygiene industry, such as baby diaper, adult diaper, sanitary napkin, underpad, ect. If you want to known more about hot melt glue, please do not hesitate to contact us by info@qzniso.com

In the manufacturing process of products such as diapers, sanitary napkins and under pads, the PE backsheet film plays an important role. Among them, PE backsheet film is a commonly used material. This blog will introduce the definition and characteristics of PE backsheet film and the key points of selecting breathable and non-breathable backsheet films.



PE backsheet film is a waterproof plastic film widely used in hygiene products like diapers, sanitary pads, and under pads. Known for its flexibility, durability, and moisture resistance, PE films serve as the outer layer to prevent leaks while offering structural support.



Key Features of PE Backsheet Films

**Waterproof: Blocks liquid penetration for dryness.

**Durable: Resists tearing and friction.

**Skin-friendly: Soft texture enhances comfort.

**Customizable: Compatible with heat-sealing, printing, and embossing.

Breathable vs. Non-Breathable PE Backsheet Film

1. Breathable PE Backsheet Film

· Allow air/moisture vapor to escape through microporous technology.
· Pros: Reduces skin irritation, ideal for extended wear (e.g., premium diapers).
· Cons: Slightly higher cost.

2. Non-Breathable PE Backsheet Film

· Fully waterproof with no airflow.
· Pros: Superior leak protection, cost-effective for budget products.
· Cons: May trap heat/moisture.

Choosing the Right Backsheet Film

· Product Use: Prioritize breathability for overnight or sensitive-skin products; opt for non-breathable films for short-term or high-absorption needs.
· Climate: Humid regions benefit from breathable films.
· Regulations: Some markets require breathability for infant care.

Why Choose NISO ?

1.Range: Economical PE films to premium breathable options.
2.Quality: ISO-certified manufacturing and leak-testing.
3.Support: Expert guidance to balance performance and cost.

PE backsheet films are vital for hygiene product performance. Whether prioritizing breathability or leak-proofing, selecting the right film ensures comfort, safety, and reliability.

In modern parenting, diapers are widely used in daily care for babies. In the core technology of diapers, an important ingredient is widely used, which is SAP (Super Absorbent Polymer). This article will introduce in depth the role, properties and application of SAP in diapers. Let us uncover the mystery of SAP in diapers!

What is SAP?
Super absorbent polymer (SAP) is a polymer compound with excellent water absorption performance. It is formed by introducing a cross-linking structure into the polymer chain. The characteristic of SAP is that it can absorb hundreds or even thousands of times its own weight in water and maintain the stability of its structure for a certain period of time.

The role of SAP
SAP plays a key role in diapers. It has the following important functions:
a. Absorbing urine: The main function of SAP is to absorb and fix urine. When urine contacts SAP, it quickly absorbs water and converts it into a gel-like substance, preventing urine from flowing back and effectively preventing leakage.
b. Reducing odor: SAP also helps reduce odor in diapers. It can capture harmful substances such as ammonia in urine, reduce the release of odor, and thus maintain a fresh environment around the baby.
c. Keep dry: SAP in diapers can quickly absorb moisture and lock it in the gel, effectively preventing the baby's skin from contacting urine for a long time, keeping the baby's skin dry, and reducing discomfort and rashes caused by moisture.

Properties of SAP

a. High water absorption: SAP is a material with extremely high water absorption. Due to its cross-linked structure, SAP can quickly absorb a large amount of water and maintain a gel state to prevent water from overflowing.
b. High stability: SAP can maintain the stability of its structure after absorbing water, and will not swell or decompose due to the large amount of water absorbed, thus ensuring the reliability and service life of diapers.
c. Safety: SAP is usually made of non-toxic and non-irritating materials and undergoes strict safety tests. Ensure that it is non-irritating to the baby's skin and meets relevant safety standards.

SAP application in diapers

SAP is widely used in the core part of diapers, usually in the absorbent layer of diapers. It exists in the inner layer of diapers in the form of particles or fluff. When the baby's urine contacts the surface of the diaper, SAP absorbs water and converts it into gel, quickly locking and fixing the urine. This design effectively maintains the baby's comfort and reduces the risk of leakage.

As an important component of diapers, SAP plays a role in comfort, dryness and reliability in the baby's life. Its high water absorption and stability ensure the absorption capacity and performance of diapers. At the same time, the safety of SAP also allows parents to use diapers with confidence and provide a better care experience for their babies. By understanding the role and properties of SAP, we can better understand and appreciate the progress of diaper technology and provide better protection for the growth of babies.

As a professional supplier of diaper raw materials, NISO can provide you with various brands of high-quality SAP for your choice. If you need any help, please contact us at info@qzniso.

The dual-core body is made of a combination of core structure and wood pulp structure. It is not made of fluff pulp and polymer materials like wood pulp core and composite core. The dual-core body is made of non-woven fabrics, Dust-free paper and water-absorbent polymers are overlapped layer by layer in equal proportions, which effectively improves the water absorption speed of diapers and solves the problem that the wood pulp structure is prone to lumps and fractures.

Under the prefabrication technology, the water-absorbent polymers in the ultra-thin core are evenly distributed, making urine absorption and diffusion faster and more uniform; the reasonable matching ratio of polymers and non-woven fabrics makes the core thinner, more breathable, and more breathable in one fell swoop. It breaks through the defects of the previous two generations of thick cores, poor air permeability, easy faults, and lumps, as well as the relatively weak "absorption" performance of the glue core.

The refined layering technology of the ultra-thin composite core can effectively enhance the absorption capacity of the core. Each layer of polymer plays a role in absorption, conduction speed, absorption speed, diffusivity, and water-locking properties. The ultra-thin composite core has as many as 8 layers, 3 of which are evenly distributed water-absorbing polymers, with the content reaching more than 70%. After the core body absorbs urine, the ultra-high content of water-absorbent polymers can firmly lock in moisture and prevent reverse osmosis, allowing you to stay dry for a long time.

Although the number of layers of the ultra-thin composite core has increased, the core still maintains the characteristics of being light, soft, and breathable. Experimental data shows that the reverse osmosis value of traditional wood pulp cores is generally above 3g, while the reverse osmosis value of the fourth generation multi-layer core is less than 1g. At the same time, the core uses zoning technology, and the surface uses S-shaped breathable grooves, which reduces the contact between the skin and the diaper surface, leaving 2 breathable channels, which further improves the breathability of the core on the basis of being "light and thin" , light and not stuffy.

Introduction:

Diapers are one of the essential products for modern parenting, providing babies with a comfortable and dry experience. However, to make a high-quality diaper, a variety of finely selected materials are needed. This article will introduce the key materials required for making diapers, including surface non-woven fabrics, acquisition layer, leg cuff, fluff core, backsheet film, elastic waistband, front tape, side tape, structure hot melt glue.



  Surface Non-woven Fabric

The surface non-woven fabric is the outer layer of the diaper, which is mainly used to contact the baby’s skin and has the characteristics of breathability, softness and comfort. Common surface non-woven fabrics include spunbond non-woven fabrics, perforated non-woven fabrics, hot air-through non-woven fabrics and embossed 3D non-woven fabrics.



  Acquisition Layer

The diversion layer is used to quickly absorb urine and disperse it throughout the diaper to keep the baby’s skin dry. Common diversion layer materials include hot air through non-woven fabrics and spunbond non-woven fabrics.



  Leg Cuff

The leg cuff is a key part of the diaper, used to prevent urine leakage. It is usually composed of water-repellent non-woven fabric and elastic waistban, providing a comfortable fit and reliable protection.



  Fluff Core

The core is the absorbent layer of the diaper, which is used to absorb urine and prevent backflow. It is composed of materials such as wood pulp, SAP (super absorbent polymer) and tissue paper to ensure that the baby stays dry for a long time.



  Backsheet Film

The backsheet film is the bottom layer of the diaper and plays a leak-proof role. Common backsheet film materials are PE film and compounded film, which are waterproof and effectively prevent urine penetration.



  Elastic Waistband

The elastic waistband in diapers is usually used for waist circumference and leg openings, providing good fit and leak-proof effect.



  Front Tape

The front tape is located at the front of the diaper and is used to adjust the waist size and fix the diaper. Common front tape materials include PP frontal tape,  Mechanical loop, Brushed loop, non woven loop



  Side Tape

The side tapes are used to adjust the leg circumference of the diaper. Common materials include PP side tape and velcro side tapes /  hook.



  Elastic Waistband

The elastic waistband of diapers provides a comfortable fit and maintains the stability of diapers. It is often made of elastic non-woven fabrics.



  Structural Hot Melt Glue

Structural adhesive plays a role in fixing and bonding different parts in the production process of diapers. Commonly used structural adhesives include rubber adhesive, urine-disclosing adhesive and composite adhesive.



Conclusion:

Manufacturing diapers requires the use of a variety of different materials, each with its own unique functions and characteristics. The correct selection and application of these materials can ensure the comfort, moisture absorption and leak-proofness of diapers. Through continuous research and development and innovation, diaper manufacturers are committed to providing better products to meet the needs of babies and parents.

  

  NISO is a professional raw materials supplier for baby diaper, adult diaper, feminine sanitary napkin,under pad and so on. Niso adheres to the spirit of "integrity, diligence, innovation and dedication", with the mission of "growing with you for a better life". Our goal is to become international top-tier supplier of raw materials of hygiene products through ongoing innovations and provision of premium products and services.

  If you have any question in diaper making, pls feel free to contact us!

With the progress of society and the improvement of people's living standards, adult diapers are widely used to care for the elderly or people with special needs. But for ordinary consumers, do you know the material composition of adult diapers? In this blog, we will reveal the material composition of adult diapers.

The material composition of adult diapers mainly includes the following aspects:

Non-woven fabric:
Non-woven fabric is often used for the outer and inner layers of adult diapers. Non-woven fabric is a textile made of fibers through a spun web or non-woven process. It is breathable and soft. The outer non-woven fabric is often used for the surface layer to play a protective role, and the inner non-woven fabric is used for the waist and elastic large ear parts to provide a comfortable fit.

Absorbent layer:

The absorbent layer of adult diapers is the key part to ensure effective absorption of urine. It is usually composed of toilet paper, wood pulp and Super Absorbent Polymer (SAP). Toilet paper and wood pulp have good absorption properties and can quickly disperse and fix urine in the absorbent layer. SAP is a high-molecular water-absorbent material that can absorb and lock a large amount of liquid to keep it dry.

Hot melt adhesive:

Hot melt adhesive plays the role of bonding and fixing parts in the production of adult diapers. Common hot melt adhesives include rubber adhesive and structural adhesive. Elstic glue is used to fix the elasticity of the waist, while structural adhesive is used to fix the connection of various parts.

Other materials:
In addition to the above main materials, adult diapers also use other auxiliary materials, such as polyethylene (PE) film to prevent urine leakage, frontal tape and side tape to provide a better fit and adjust the size.

In summary, the materials of adult diapers mainly include non-woven fabrics, absorbent layers, hot melt adhesives and other auxiliary materials. Understanding the material composition of adult diapers can help us choose suitable products and improve the care effect.

Quanzhou Niso Industry Co., Ltd. is a professional supplier of adult diaper raw materials. We can provide one-step service with you. If you are interest in raw materials or producing adult diaper, please feel free to contact us!

Sanitary pads are an indispensable part of feminine hygiene products and are of great significance to women's health and comfort. However, do you really know what sanitary pads are made of? This article will reveal the composition and structure of sanitary pads to help you better understand this commonly used product in daily life.

★ Main components of sanitary pads

1. Absorbent layer:
The core part of sanitary napkins is the absorbent layer, which is responsible for absorbing and fixing menstrual blood. Common absorbent layer materials include:
✿Pure cotton: Pure cotton fibers absorb quickly, have good breathability, are gentle on the skin, and reduce the risk of allergies. 

✿Ultra-thin absorption layer: Made of high-molecular water-absorbent material, it absorbs quickly and can effectively keep you dry.

2. Anion chip layer (internal structure):

In some advanced sanitary napkins, the chip layer is used to improve absorption capacity, prevent leakage and keep dry. It is usually composed of polymer materials such as gel microfilaments.

3. Backsheet film: 

The backsheet film is made of a breathable film to prevent leakage and maintain comfort.

4. Surface layer (surface layer): 

The surface layer contacts the skin and its function is to be soft, breathable, and able to transfer liquid downward to keep the surface dry. It is usually made of non-woven fabric or perforated film.

5. Adhesive: 

Adhesives are indispensable for combining materials of various layers. Generally, non-toxic and odorless hot melt adhesives are widely used.

6. Packaging materials: 

Sanitary pads are usually packaged in polyethylene or polypropylene film to maintain the hygiene and integrity of the product.

★ Structure of sanitary pads

1. Wings:
The wings are located on both sides of the sanitary napkin and can be fixed on the underwear to provide better leakage protection.

2. Tape:
There is usually a layer of tape on the back of the sanitary napkin to facilitate the user to fix it on the underwear.

Sanitary pads are made of a variety of materials, and the central absorption layer, core layer, backing layer and surface layer play different functional roles. Understanding the composition and structure of sanitary pads can help us choose the right product for ourselves and improve comfort and safety. When buying sanitary napkins, it is very important to choose the type and specification that suits you according to your personal preferences and needs.

When you're out on the road with your baby, it’s natural to worry about their safety and comfort. An infant car monitor can provide much-needed peace of mind by allowing you to easily monitor your baby without turning your attention away from the road.

 

Unlike WiFi baby monitors, which depend on internet connectivity and can be unreliable while driving, an infant car monitor offers a more stable, real-time connection. This means that you don’t have to deal with lag or interruptions, making it the safer choice when you're on the move. It’s designed to provide you with clear, instant video feedback, so you can always keep an eye on your little one from the front seat.

 

Many models feature wide-angle lenses and HD displays, which ensure that you have a full view of the backseat and your baby’s activities. Additionally, night vision allows for clear monitoring during nighttime drives, so you’re never left in the dark. These features are crucial for keeping your baby safe and comfortable, especially on longer trips or during nighttime travel.

 

Another benefit of using an infant car monitor is that it helps reduce distractions while driving. Turning around to check on your baby can be dangerous, as it takes your attention away from the road. With a monitor, you can easily glance at the screen, keeping your focus on the driving task at hand. This added convenience helps ensure both your baby’s safety and your own.

 

If you’re still unsure whether an infant car monitor is right for you, consider how much more relaxed you’ll feel knowing that you can monitor your baby’s well-being in real-time. It’s a small investment that can make a big difference in your driving experience, offering you peace of mind and reducing the stress of driving with an infant in tow. Whether you’re on a short drive or a long road trip, having an infant car monitor can transform your experience on the road.

 

For parents who frequently travel with their babies, an infant car monitor is more than just a luxury—it’s a valuable tool that enhances safety and convenience during every trip.