China Factory High Quality Hot Melt Adhisive for Baby Diaper

Product Description

PRODUCT DETAILS

item	value
Toxicity	None
Composition	Synthetic Resins
Model	8822/8106/895
Place of Origin	China
Classification	Hot Melt Adhesives
Main Raw Material	Other
Usage	Packing
Packaging	20 Kg/box
Appearance	Solid
Colour	Transparent/Yellow
Shelf Life	Shelf Life
Packaging	20 Kg/box  about 1Kg/cake, wrapped with fusible films

 

Introduction: Baby Diaper Glue - The Invisible Bond of Diaper Construction

Baby Diaper Glue, more accurately known as Hot Melt Adhesive (HMA) or Pressure-Sensitive Adhesive (PSA), is a critical component in the manufacturing of disposable diapers. It is a thermoplastic, solvent-free adhesive that is applied in a molten state and forms a bond upon cooling. This "invisible" material is responsible for holding the complex, multi-layered structure of a diaper together, directly impacting its integrity, performance, and comfort.

Without advanced adhesive systems, modern, high-performance diapers as we know them would not be possible.

 

1. Core Functions and Application Areas

HMA is used in nearly every part of the diaper assembly:

 

 

Application Area	Specific Function
Construction / Lamination	Bonding the layers together: the Top Sheet (non-woven), Absorbent Core (fluff & SAP), and Back Sheet (PE film).
Elastic Attachment	Securing the leg elastics and waist elastics to the non-woven materials, creating the crucial leak-guard cuffs.
Core Stabilization	"Locking" the fluff pulp and Super Absorbent Polymer (SAP) in place within the core to prevent shifting and clumping (Anti-Bunching).
Fastening System	Used in the assembly of hook-and-loop tabs (e.g., Velcro®-style closures) and adhesive tapes.
Standing Leg Cuffs	Providing the initial "pop-up" structure for inner leg barriers.

2. Key Properties of an Ideal Diaper Glue

To perform in such a demanding product, diaper adhesives must possess a unique set of properties:

• High-Tack & Fast Setting: Must grab quickly on high-speed production lines (often exceeding 500 diapers/minute).

• Strong Adhesion: Create a durable bond between dissimilar materials (e.g., polyolefin film and non-woven fabric).

• Softness & Flexibility: The adhesive line must remain flexible and not become brittle, ensuring the diaper is soft and moves comfortably with the baby.

• Resistance to Water & Body Fluids: Bonds must not break down when exposed to urine or moisture.

• Breathability (for specific types): Some HMAs are formulated to be micro-porous, allowing for the construction of breathable laminates.

• Safety & Compliance: Must be non-toxic, hypoallergenic, and free from harmful substances (compliance with EU Toy Safety, FDA, REACH, etc. is mandatory).

3. Types of Hot Melt Adhesives Used

The base polymer defines the adhesive's characteristics:

 

 

Type	Pros	Cons	Common Uses
SBS (Styrene-Butadiene-Styrene)	Cost-effective, high tack, good adhesion.	Lower resistance to heat and oxidation (can yellow). Can be too stiff.	Core stabilization, some lamination.
SIS (Styrene-Isoprene-Styrene)	Softer, more flexible, excellent tack. Good low-temperature performance.	Moderate heat resistance.	Elastic attachment, ideal for leg cuffs where softness is critical.
APAO (Amorphous Poly-Alpha-Olefin)	Excellent heat & aging resistance, good water resistance, very clean (colorless).	Higher cost, lower tack.	Lamination of backsheet and topsheet, where a clean appearance and durability are key.

Most commercial diaper adhesives are blended formulations, combining these polymers with:

• Tackifiers: To increase stickiness.

• Plasticizers/Oils: To adjust viscosity and flexibility.

• Antioxidants: To prevent thermal degradation.

4. Industry Trends & Innovations

• Odor Control: Development of low-odor and odor-neutralizing adhesives for a "cleaner" feel.

• Plant-Based & Renewable Materials: Exploration of bio-based tackifiers and polymers to improve sustainability.

• Application Technology: Advanced, non-contact spray systems (e.g., spiral spray) that use less adhesive while providing better coverage and softer hand-feel.

OTHER RAW MATERIALS FOR HYGIENE PRODUCTS

 
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