What Are Baby Diapers Made Of? OEM Guide to SAP, Fluff Pulp, and Nonwoven Fabrics

Baby diapers are made from several functional layers. Each layer affects softness, absorption, leakage protection, fit, and production cost. For private label buyers, material selection should match the target market, product positioning, and expected price range.

▌ 1. Main Materials Used in Baby Diapers

✦ Super Absorbent Polymer (SAP)

SAP is the absorbent material that locks liquid into a gel. Different SAP grades can be selected to balance absorption speed, retention, thickness, and cost. The final SAP level should be confirmed through product testing.

✦ Fluff Pulp

Fluff pulp provides bulk and helps distribute liquid through the absorbent core. A fluff pulp and SAP core usually offers a soft, cushioned feel. The ratio can be adjusted for different absorbency and thickness requirements.

✦ Nonwoven Fabric

Nonwoven materials are used for the topsheet, leg cuffs, waistband, side panels, and other parts. Buyers can choose spunbond or hot-air nonwoven materials according to softness, strength, breathability, and cost.

✦ ADL

The Acquisition Distribution Layer helps receive liquid quickly and distribute it across the absorbent core. It can be selected with different structures, colors, and coverage areas according to the product design.

✦ PE Backsheet or Cloth-Like Backsheet

The backsheet helps block liquid leakage. Buyers can choose a standard PE film or a cloth-like laminated backsheet according to product positioning, breathability requirements, appearance, and budget.

✦ Elastic Components

Elastic materials are used for the waistband, leg cuffs, and side gathers. They help improve fit and reduce leakage risk. Pull-up pants can use a Q-type or T-type waistband structure depending on the design.

✦ Fastening System

Taped diapers may use PP tape, magic tape, or frontal tape. Disposal tape and wetness indicators can also be added according to the target market and product requirements.

▌ 2. How Material Choices Affect Performance

A thinner diaper usually requires a more concentrated absorbent core and careful material matching. A soft overnight diaper may use more fluff pulp or a higher absorbency core. A daytime product may focus on lightness, breathability, and comfortable movement.

OEM buyers can discuss:

• Topsheet: hot-air or spunbond nonwoven

• Embossing: plain, pearl, or punching patterns

• ADL: with or without ADL, different colors and coverage

• Core: SAP paper core, fluff pulp and SAP core, or a hybrid structure

• Backsheet: PE film or cloth-like laminated backsheet

• Waistband: Q-type, 360° stretch, or other customized structures

• Fasteners: PP, magic, or frontal tape

• Wetness indicator: color, position, and pattern

• Sizes: NB to 5XL, depending on the product range

• Packaging: pack count, bag material, handles, printing, and carton details

▌ 3. How Jiayue Supports Baby Diaper OEM

Fujian Jiayue Sanitary Products Co., Ltd. operates a production base of more than 20,000 m² at Quanzhou Jiarun Paper Industry Co., Ltd. The company supports OEM and ODM projects for baby diapers and baby pull-up pants, from product specification and material selection to packaging and shipment.

Jiayue’s baby diaper lines can run at up to 700 pcs/min, while baby pull-up lines can run at up to 630 pcs/min, depending on the product structure. The company exports hygiene products to more than 70 countries and regions and provides quality control from raw material inspection to finished-product inspection.

Relevant quality and compliance documents may include ISO 9001, ISO 13485, CE, SGS, and market-specific documents such as CPC or COC when applicable.

▌ 4. The Baby Diaper OEM Process

1. Discuss the target market, sizes, absorbency, materials, and packaging.

2. Confirm the product specification and quotation.

3. Arrange samples for evaluation.

4. Finalize the product structure and packaging artwork.

5. Start mass production after approval.

6. Complete quality inspection, packing, loading, and shipment.

▌ 5. FAQ

Can the absorbency and thickness be customized?

Yes. The absorbent core, SAP level, fluff pulp ratio, and product structure can be adjusted according to the target market and test requirements.

Can different sizes be mixed in one order?

Yes. Mixed-size loading can be discussed according to the container plan, packaging format, and order quantity.

How long does sample preparation take?

Sample preparation usually takes 3–5 days. Sample shipping arrangements depend on the destination and order details.

What should buyers provide before quotation?

Buyers can provide the target market, sizes, absorbency expectations, packaging idea, pack count, and estimated order quantity. Jiayue can then recommend a suitable OEM structure.

For product specifications, samples, and container quotations, contact Fujian Jiayue Sanitary Products Co., Ltd. and its factory base, Quanzhou Jiarun Paper Industry Co., Ltd.