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Composite Core For Diapers

Diaper core is the core functional layer of diapers, located between the surface layer (nonwoven fabric in contact with the skin) and the bottom layer (leakageproof film), responsible for rapid absorption, uniform diversion and locking of liquid (urine), directly affecting the water absorption, leakageproofness, breathability and comfort of diapers. It is the key to diaper technology innovation and determines the performance difference of products.
Design:
Availability:
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  • 380,410,Customized

  • OEM/ODM

  • 9619009000‌C

Overview


The composite core of disposable diapers is a multi-layer structure designed for optimal fluid management. Its key functions include:


  1. Rapid absorption‌ - Superabsorbent polymers (SAP) and fluff pulp form a hydrophilic matrix to instantly lock in liquid.

  2. Moisture redistribution‌ - Stratified layers promote longitudinal/spread distribution to prevent localized saturation.

  3. Re-wet prevention‌ - Microporous nonwoven coverstock allows unidirectional penetration while maintaining dry surface contact (≤0.5g re-wet value).

  4. Structural integrity‌ - Reinforced bonding maintains dimensional stability during use (typically withstands 300-500% expansion).

  5. Breathability‌ - Engineered channels enable vapor transmission (≥500g/m²/24hr WVTR) to reduce skin irritation risks.


This integrated system achieves >95% absorption efficiency while maintaining ≤2mm thickness under 40kPa pressure.

Product Description

Technical Parameter:

Product Name Absorbent Paper Specification 400g*105mm
Items Standards Records Results
Package Complete Packaging, No Damage, No Pollution; Qualified Qualified
Complete, Correct & Clear Logo with Production Date\Batch\Specification\Weight\Usage Identification;
Appearance ①.Flat Surface without crumple\burr, Even Thickness, Odorless, No Dirt, No Hard Block, etc; Qualified Qualified
②.No obvious difference between internal and external tightness.
③. The outer layer is firmly bonded and must not be delaminated
④.Marking the side of usage on each roll.
Odor Odorless Qualified Qualified
Joint NO More Than 2 Qualified Qualified
Core Diameter 76.5±1mm 76mm Qualified
Fluorescence Cannot be detected Qualified Qualified
Items Standards Records Averages Results
PH 5.5-8.0 6.2 6.3 6.5 5.9 6.22 Qualified
Width ±2mm 105 106 107 106 106 Qualified
Weight ±4.0% 402 398 405 399 401 Qualified
Moisture ≦10.0% 4.2 5.7 4.95 Qualified
Brine magnification in 1min ≧25 27 28 27.5 Qualified
Brine magnification in 30mins ≧35 39 38 38.5 Qualified
Water magnification in 1min ≧80 85 90 87.5 Qualified
Brine Osmosis ≦2g 1.35 1.54 1.44 Qualified
Diffuse Range ≧200mm 260 265 262.5 Qualified
Water Absorption time ≦110s 107 100 103.5 Qualified
Water Osmosis ≦2g 1.16 1.37 1.26 Qualified
Hygiene Standards TVC of Bacteria≦200 cfu/g 0 0 0 0 ﹤40 Qualified
TVC of Fungus≦100 cfu/g 0 0 0 0 ﹤40 Qualified


芯体结构图

芯体组成与功能

Diaper core - Market Analysis_01

Packaging & Shipping

芯体打包及储存

芯体生产

Our Services
Customized.
Company Information

Topone Hygiene Materials Co., Ltd. - Professional Hygiene Material Supplier

工厂拼图

As a leading Chinese manufacturer of hygiene materials, Topone specializes in providing high-quality raw materials for:

  • Baby diapers

  • Sanitary napkins

  • Adult incontinence products

  • Wet wipes


Company Background

Established in 2012, Topone has been serving global markets through professional export channels. We maintain long-term partnerships with clients across:

  • Southeast Asia

  • Middle East

  • Europe

  • South America


Strategic Advantages

  • Vertical Integration:

Equity investments in upstream suppliers including:

Nonwoven fabric mills

PE film production facilities

Tissue paper factories

  • Quality Assurance:

Strict quality control system

Continuous R&D investment


Our Commitment

Dedicated to becoming China's most trusted hygiene material solution provider through:

  • Consistent product quality

  • Reliable supply chain

  • Technical innovation


For long-term partnership opportunities, please contact our international trade team.

FAQ


Q1: What is your minimum order quantity for diapers?
The minimum order quantity (MOQ) for our diaper products is 150,000 pieces per design.

Q2: Can we mix different designs in one order?
We offer flexible design mixing options. Clients may combine multiple designs within a single order, with no quantity restrictions per design variant.

Q3: How do we place an order?
To initiate an order, please submit your detailed purchase order via email. Our sales team will promptly prepare a proforma invoice for your review. Production commences upon receipt of your written confirmation and the required deposit payment.

Q4: What's your production lead time?
Standard lead time ranges from 8-20 working days following:

  • Final sample approval

  • Receipt of 30% advance payment

Q5: Do you own production facilities?
We operate a fully-owned production facility in Quanzhou City, Fujian Province, China.



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Phone:
+86-139-5983-2604
Email:
helen@topone-corp.com
Address:
Unit 1205, Gaosen Century Center, No.7-1 Yingbin Road, Jinjiang, Quanzhou, Fujian Province, China
About us
Quanzhou Topone was founded in 2012, which is specialized in premium Diapers, Sanitary Napkin,  Wet Wipes. We are serving global clients across Asia, Europe and South America. We are your most trusted hygiene products supplier.
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