Quick Answer: Sanitary pads are made of 5 main layers, each using specific raw materials optimized for comfort, absorbency, and leak protection:

Layer	Raw Material	Function
1. Topsheet	Hydrophilic nonwoven / Perforated PE film / Organic cotton	Skin contact, fast fluid transfer
2. Acquisition & Distribution Layer (ADL)	Spunlace nonwoven / Hot air through nonwoven	Spreads fluid evenly across core
3. Absorbent Core	Fluff pulp (wood pulp) + Super Absorbent Polymer (SAP)	Absorbs and locks fluid permanently
4. Backsheet	Polyethylene (PE) film / Breathable laminated nonwoven	Prevents leakage, breathability
5. Release Paper	Silicone-coated kraft paper	Protects adhesive before use

What Raw Materials Are Used in Sanitary Pads? Complete Guide (2025)

Navigating the world of feminine hygiene products can be overwhelming, especially with the numerous options available. Understanding the raw materials used in sanitary pads can empower you to make informed choices about your body and the environment.

This comprehensive guide delves into the components of sanitary pads, exploring both traditional and sustainable sanitary pad materials. Whether you’re a conscious consumer, a manufacturer, or simply curious — read on to discover what goes into making this essential feminine hygiene product.

What Are Sanitary Pads Made Of?

Sanitary pads are made of multiple layers of synthetic and natural materials, each selected for a specific function. The core raw materials in a standard sanitary pad are:

• Nonwoven fabric — used in the topsheet and acquisition layer
• Super Absorbent Polymer (SAP) — the primary absorbent in the core
• Wood pulp / fluff pulp — bulking agent in the absorbent core
• Polyethylene (PE) film — used in the backsheet for leak protection
• Hot melt adhesive — bonds all layers together
• Silicone release paper — protects the adhesive strip

The exact combination and grade of these materials varies by brand, product type (ultra-thin, overnight, organic), and target market. For more, see wound care raw materials. Premium pads use higher-grade SAP and softer nonwoven topsheets, while eco-friendly pads substitute synthetic materials with bamboo, organic cotton, or biodegradable polymers.

Sanitary Pad Raw Material List: Layer-by-Layer Breakdown

A standard sanitary pad comprises several layers, each serving a specific purpose. Here is the complete sanitary pad raw material list:

1. Top Sheet: The Comfort Layer

The top sheet is the layer in direct contact with your skin. It is designed for comfort and to allow fluid to pass through quickly without flowing back.

• Common Materials: Nonwoven fabric (polypropylene or polyethylene spunbond), perforated PE film
• Sustainable Alternatives: Organic cotton, bamboo fiber, hot air through nonwoven
• GSM Range: 15–25 GSM typically used

2. Acquisition & Distribution Layer (ADL)

The ADL sits between the topsheet and absorbent core. It rapidly pulls fluid away from the topsheet and distributes it evenly across the core, preventing leaks and keeping the surface dry.

• Common Materials: Spunlace nonwoven, hot air through nonwoven (HAT)
• Sustainable Alternatives: Viscose spunlace, bamboo spunlace
• Key Property: Must be hydrophilic (water-loving) to pull fluid downward

3. Absorbent Core: The Heart of the Pad

The absorbent core is responsible for absorbing and trapping menstrual fluid. It is the thickest layer and plays the most crucial role in preventing leaks and keeping users comfortable.

• Common Materials: Wood pulp fluff (cellulose fiber) + Super Absorbent Polymer (SAP)
• Sustainable Alternatives: Bamboo viscose, banana fiber, airlaid paper
• SAP Quantity: 1–3 grams per pad — absorbs up to 300x its weight

4. Back Sheet: The Leakproof Barrier

The back sheet prevents leakage and keeps the pad securely in place against underwear.

• Common Materials: Polyethylene (PE) film, breathable laminated films
• Sustainable Alternatives: Biodegradable polymers, plant-based PE films
• Key Property: Must be waterproof yet comfortable against clothing

5. Wings: Staying Put

Wings provide additional security and help the pad stay in place, preventing bunching and shifting during movement.

• Common Materials: Nonwoven fabric, pressure-sensitive adhesive
• Sustainable Alternatives: Biodegradable adhesives, compostable nonwovens

6. Adhesive & Release Paper: Holding It All Together

Hot melt adhesive bonds all layers of the pad together. A silicone-coated release paper protects the bottom adhesive strip until the pad is ready to use.

• Adhesive Materials: Pressure-sensitive hot melt adhesives (PSAs)
• Release Paper: Silicone-coated kraft paper or PE film
• Sustainable Alternatives: Bio-based adhesives, water-activated adhesives

Cellulose Fiber (Fluff Pulp) in Sanitary Pads — Role and Importance

Cellulose fiber, commonly called fluff pulp, is one of the most important raw materials for sanitary pads. It forms the structural base of the absorbent core and works alongside SAP to absorb and distribute menstrual fluid.

Here is how cellulose fiber compares to other absorbent core materials:

Material	Absorbency	Biodegradable?	Cost	Best For
Fluff Pulp (Cellulose)	Medium	✅ Yes	Low	Bulk absorption, structure
Super Absorbent Polymer (SAP)	Very High (300x)	❌ No	Medium	Ultra-thin pads, locking fluid
Bamboo Viscose	Medium-High	✅ Yes	Medium-High	Eco-friendly pads
Airlaid Paper	Medium	✅ Yes	Medium	Soft, natural-feel cores

Most standard sanitary pads use a combination of fluff pulp and SAP — the fluff pulp provides bulk structure while the SAP provides high-efficiency fluid locking. The ratio of fluff pulp to SAP determines the thickness and absorbency of the final pad. Ultra-thin pads use more SAP and less fluff pulp, while thicker traditional pads rely more heavily on cellulose fiber.

For manufacturers sourcing cellulose fiber for sanitary pads, the standard grade is bleached softwood kraft pulp with high absorbency and low residual moisture content.

Sanitary Pad Raw Material Suppliers in India — What to Look For

For manufacturers and businesses sourcing sanitary napkin raw materials, choosing the right supplier is critical to product quality, consistency, and cost. Here is what to evaluate:

Raw Material	Key Specification	Certifications to Ask For
Topsheet Nonwoven	15–20 GSM, hydrophilic, soft finish	OEKO-TEX, BIS
SAP (Sodium Polyacrylate)	30+ g/g absorbency under pressure	FDA compliant, REACH
Fluff Pulp / Cellulose	Bleached softwood kraft, low moisture	FSC certified
PE Backsheet Film	20–30 micron, breathable or standard	RoHS, food-grade PE
Hot Melt Adhesive	Skin-safe, low VOC	OEKO-TEX, FDA
Release Paper	Silicone-coated, easy peel	Food contact grade

Favourite Fab supplies certified hygiene-grade raw materials for sanitary pad manufacturing across India and internationally — including topsheet nonwoven, SAP sheets, cellulose fiber, PE backsheet film, and hot melt adhesives. Contact us for bulk pricing and samples →

Sustainable Sanitary Pad Materials — Eco-Friendly Alternatives

As awareness about environmental issues grows, so does the demand for sustainable sanitary pad materials. Here are the most popular eco-friendly alternatives:

1. Organic Cotton: A Breathable and Gentle Choice

Organic cotton is a natural fiber free from harmful pesticides and chemicals, making it a popular choice for the top sheet of organic cotton sanitary pads.

• Soft and breathable
• Hypoallergenic and gentle on sensitive skin
• Biodegradable and compostable

2. Bamboo Fiber: The Sustainable All-Rounder

Bamboo is a fast-growing, renewable resource that requires minimal water and pesticides. Bamboo sanitary pad materials are increasingly popular due to their impressive properties.

• Highly absorbent — up to 40% more than cotton
• Naturally antibacterial and odor-resistant
• Biodegradable and compostable

3. Biodegradable Polymers: Breaking Down Naturally

Traditional plastic backsheets take hundreds of years to decompose. Biodegradable polymers break down naturally in months.

• Reduces plastic waste significantly
• Environmentally friendly end-of-life
• Supports a circular economy

4. SAP for Sanitary Pads: Enhancing Absorbency

SAP for sanitary pads is the core absorbent component. While traditionally petroleum-based, bio-based SAP options are now emerging as sustainable alternatives that maintain the same high absorbency.

• Enhanced absorbency — up to 300x its weight
• Reduces pad bulkiness significantly
• Bio-based options offer eco-friendly solutions

The Future of Sanitary Pad Raw Materials: Innovation and Sustainability

The feminine hygiene industry is constantly evolving, with manufacturers exploring innovative and sustainable solutions. Here are some exciting developments:

• Bio-based SAP: Plant-derived super absorbent polymers that biodegrade faster than petroleum-based SAP
• Flushable Cores: Water-dispersible absorbent cores for environmentally responsible disposal
• Period Underwear: Reusable and absorbent underwear designed to replace disposable pads
• Menstrual Cups: Reusable silicone cups offering a zero-waste alternative
• Bio-based Backsheets: Plant-based PE film alternatives that decompose naturally

Favourite Fab: Your Partner in Sanitary Pad Raw Material Supply

At Favourite Fab, we supply certified hygiene-grade raw materials for sanitary pad manufacturing — including nonwoven topsheet fabric, SAP sheets, cellulose fiber, PE backsheet film, hot melt adhesive, and release paper. We serve manufacturers across India and internationally with bulk supply, custom specifications, and fast delivery.

Contact us today to get bulk pricing, samples, and technical specifications for any sanitary pad raw material.

Email: sale@favouritehub.com

WhatsApp: +91 95288811566

Material Grade Selection by Sanitary Pad Format

Different sanitary pad formats demand different raw material specifications. Manufacturers producing multiple SKUs (regular, ultra-thin, overnight, panty liner) need to match the right material grade to each format to balance cost, performance, and shelf appeal. Below is the practical specification matrix used by Indian pad manufacturers.

Component	Regular Pad	Ultra-Thin Pad	Overnight Pad	Panty Liner
Top Sheet GSM	18–22 GSM hydrophilic spunbond	15–18 GSM soft spunbond	20–25 GSM (textured)	15 GSM (lightweight)
ADL	Optional (40 GSM)	Required (50 GSM hot-air through)	Required (60 GSM)	Not used
SAP Loading	2–3 g	3–5 g	5–8 g	0.5–1 g
Fluff Pulp	3–5 g	2–3 g (compressed)	6–10 g	1–2 g
Back Sheet	Standard PE film	Breathable microporous	Reinforced PE laminate	Standard PE film
Pad Length	240–280 mm	240–245 mm (thin profile)	320–410 mm	150–180 mm

For ultra-thin formats, the trick is achieving high absorbency in a thin profile — this requires premium SAP with high gel strength (rather than just high free-swell capacity) and a properly engineered ADL. Cutting corners here results in rewet failures during product testing.

Quality Testing Parameters Every B2B Buyer Should Request

When sourcing sanitary pad raw materials wholesale, request the following test parameters from your supplier’s Certificate of Analysis (CoA). Suppliers that resist providing this data are typically not equipped to deliver consistent quality at scale.

• Nonwoven top sheet: GSM (±5% tolerance), tensile strength (MD/CD), elongation at break, hydrophilicity (rewet test), pH, fluorescent agent test (FDA-compliant for export markets).
• Fluff pulp: Brightness (ISO standard), absorbency rate (g/g free swell), debonded vs. non-debonded grade specification, residual chemical content.
• SAP: Centrifuge retention capacity (CRC), absorbency under load (AUL at 0.3 psi), particle size distribution, residual monomer (must be <500 ppm for skin-contact applications).
• Back-sheet film: Thickness uniformity, tensile strength, water vapour transmission rate (MVTR for breathable grades), tear resistance.
• Adhesive: Peel strength, shear holding power, application temperature window, skin-safety certification (ISO 10993).

Favourite Fab provides full CoA documentation with every shipment to B2B buyers. We work with manufacturers across India and export markets to qualify materials at the specification stage — saving rework cost during production. For specifications, samples, or trial roll quantities, contact us at sale@favouritehub.com or WhatsApp +91-9528811566.

FAQs About Raw Materials Used in Sanitary Pads

1. What are the main raw materials used in sanitary pads?

The main raw materials in sanitary pads are: nonwoven fabric (topsheet), spunlace or hot air through nonwoven (ADL), fluff pulp and super absorbent polymer or SAP (absorbent core), polyethylene PE film (backsheet), hot melt adhesive (bonding), and silicone release paper. Each layer serves a specific function in comfort, absorbency, and leak protection.

2. What is SAP in sanitary pads?

SAP stands for Super Absorbent Polymer. It is added to the absorbent core of sanitary pads to enhance fluid retention. The most common type is sodium polyacrylate, which absorbs up to 300 times its weight in liquid and locks it into a stable gel that cannot leak back out.

3. What is cellulose fiber used for in sanitary pads?

Cellulose fiber (fluff pulp) forms the structural base of the absorbent core. It works alongside SAP to provide bulk absorption capacity. Fluff pulp is biodegradable and derived from wood pulp. The ratio of fluff pulp to SAP determines whether a pad is thick and traditional or ultra-thin and high-performance.

4. Are sanitary pads biodegradable?

Traditional sanitary pads are not fully biodegradable due to plastic PE film backsheets and synthetic SAP. However, many brands now offer pads made with biodegradable materials like organic cotton topsheets, bamboo fiber cores, and plant-based backsheet films.

5. What are the benefits of using organic cotton in sanitary pads?

Organic cotton is natural, breathable, and hypoallergenic — ideal for sensitive skin. It is free from harmful pesticides and chemicals, biodegradable, and certified under GOTS (Global Organic Textile Standard). It is most commonly used in the topsheet layer of premium and eco-friendly pads.

6. Are bamboo sanitary pads better for the environment?

Yes. Bamboo sanitary pads are generally more eco-friendly than conventional pads. Bamboo is a fast-growing renewable resource, bamboo fibers are biodegradable and compostable, and bamboo cultivation requires significantly less water and no pesticides compared to conventional cotton.

7. Where can I buy sanitary pad raw materials in India?

Favourite Fab supplies all sanitary pad raw materials — topsheet nonwoven, SAP sheets, cellulose fiber, PE backsheet, hot melt adhesive, and release paper — to manufacturers across India. Contact us for bulk pricing and samples.

Conclusion: Making Informed Choices for You and the Planet

Understanding the raw materials used in sanitary pads — from the topsheet nonwoven to the SAP absorbent core and PE backsheet — empowers both consumers and manufacturers to make better decisions. The sanitary pad raw material list includes nonwoven fabric, super absorbent polymer, cellulose fiber, PE film, hot melt adhesive, and release paper. By choosing products made with sustainable materials, you contribute to a healthier planet and a brighter future for feminine hygiene.

Related Resources

• Non Woven Bag Raw Material Supplier — India
• Underpad Raw Material Supplier — India
• Shoe Cover Raw Material Supplier — India
• Mattress Nonwoven Raw Material Supplier — India
• Disposable Bedsheet Raw Material Supplier — India
• Frontal Tape Raw Material Supplier — India
• Surgical Gown Raw Material Supplier — India
• Air Filter Raw Material Supplier — India
• Hot Air Through Bonded Nonwoven Supplier — India
• SAP Sheet Raw Material Supplier — India
• Crop Cover Raw Material Supplier — India
• Cosmetic Pad Raw Material Supplier — India

Related Sanitary Pad Raw Material Resources

• non woven fabric — complete nonwoven product hero
• spunbond non woven fabric — top-sheet raw material for sanitary pads
• spunlace non woven fabric — soft hygiene cover stock
• airlaid nonwoven fabric manufacturer India — fluff-pulp absorbent core material
• SMS non woven fabric manufacturer India — barrier-grade nonwoven for pads
• SMMS non woven fabric manufacturer India — high-barrier hygiene layer
• meltblown nonwoven fabric manufacturer India — fine-fibre barrier ply
• hot air through bonded nonwoven fabric — ADL raw material
• why choose Favourite Fab nonwoven — sourcing trust signals

Related B2B Resources

• Sanitary Pad Raw Material Supplier India
• SAP — Super Absorbent Polymer Supplier
• Sanitary Napkin Raw Materials List
• Non Woven Fabric Manufacturer India