Baby Diaper
Baby Pull Up Pants
Adult Diaper
Sanitary Napkin
Wet Wipes
Tissues Paper
Disposable Cotton Soft Towel
Pet Diaper
How a Diaper is Made: A Step-by-Step Look Inside Our Factory
Step 1: Building the “Skeleton” – Composite Core Formation.
This is like laying the foundation. Super Absorbent Polymer (SAP) and fluff pulp are evenly distributed like snowfall onto a non-woven base layer, then covered and heat-pressed into a solid, flat “core sheet.” This is where the Full-Core Structure shines: no clumping, no separation, just stable absorbency. The weight and uniformity of this core directly determine the diaper's “endurance.”
Step 2: The “Undergarment” – Adding the Top Sheet & 3D Embossing.
The core is covered with a hot-air through non-woven top sheet—the layer that touches the baby's skin. It undergoes hot-air perforation by an embossed roller, creating a pattern of tiny dimples. This isn't just for show; it increases airflow for breathability and reduces skin contact area, allowing moisture to channel down faster so the surface stays drier.
Step 3: The “Outerwear” – Composite Back Sheet & Fasteners.
Beneath the core lies the back sheet. We use hot melt adhesive to precisely laminate a soft hot-air non-woven layer with a specialized breathable PE film. This film has micron-sized pores that block liquid but allow vapor to escape, achieving “breathable yet waterproof” performance. Simultaneously, non-woven front waist tapes and S-cut hook tapes are precision-cut and readied.
■ Step 4: Assembly & Shaping – The Magic of Ultrasonic Welding.
This is the busiest station. Conveyors bring together the core, top sheet, back sheet, and fasteners. No stitches are used—only ultrasonic welding. High-frequency vibration generates heat, fusing materials instantly with a distinctive “hiss.”
Elastic strands for the 3D leak-guard cuffs are precisely welded to the sides.
Waistband elastics are stretched to a set tension and secured.
Hook tapes are firmly welded to the waistband.
Finally, high-speed blades cut individual diapers, simultaneously creating the umbilical cord notch for newborns.
Step 5: Quality Control & Packaging – Letting the Data Speak.
Finished diapers are sampled every 30 minutes. We don’t rely on touch, but on instruments: testing absorption speed via “third rewet” measurement, strength with a tensile tester, and durability with a flex tester that simulates baby movement. Only when all data meets strict standards is a batch approved for packaging.
In the end, manufacturing is a battle over details. The true comfort of a diaper lies hidden in these precise, unseen parameters.