13 GSM Hydrophilic SS Nonwoven Topsheet for Diapers and Sanitary Pads
The 13 GSM hydrophilic SS nonwoven topsheet is the skin-contact layer that defines comfort in every baby diaper, adult brief, and sanitary pad.
At 13 grams per square metre, this ultra-light spunbond-spunbond fabric must simultaneously deliver rapid fluid strike-through, low rewet, and a soft tactile feel — all under the mechanical stress of a high-speed converting line running at 400 to 600 pieces per minute.
As a B2B raw material supplier with over 10 years of nonwoven manufacturing experience, Favourite Fab supplies this grade directly to diaper plants, feminine care OEMs, and hygiene product manufacturers in over 50 countries.
If your production line demands consistent strike-through performance and soft hand-feel at competitive wholesale pricing, this page covers everything you need to qualify and order this material.
What Is a 13 GSM Hydrophilic SS Nonwoven Topsheet
SS stands for Spunbond-Spunbond — a two-layer polypropylene construction bonded by thermal calendering.
Two continuous spunbond webs are formed simultaneously and then consolidated under heated calendar rolls into a single integrated fabric.
This two-layer structure gives the topsheet a finer surface feel and better cross-directional uniformity than a single-layer spunbond of equivalent weight.
At 13 GSM, this is one of the lightest topsheet materials commercially used in the absorbent hygiene industry.
The low basis weight reduces material cost per unit while maintaining the tensile strength required for high-speed converting without web breaks.
A tensile strength of 18 N/5 cm in the machine direction is the practical minimum that most diaper converters require to run reliably above 400 PPM.
Favourite Fab’s 13 GSM SS grade is engineered to meet this threshold while keeping basis weight at the minimum needed for consistent web formation and caliper.
Hydrophilic treatment involves coating the PP fibers with a durable surfactant during the spinning or finishing stage.
This treatment lowers the contact angle of aqueous fluids on the fiber surface, allowing urine or menstrual fluid to pass through the topsheet rapidly toward the absorbent core below.
Strike-through time, measured per EDANA 150.3, is the primary performance metric buyers evaluate before approving a topsheet grade for their diaper or pad product line.
Unlike hydrophobic spunbond used in backsheets or barrier cuffs, the hydrophilic topsheet is engineered to transmit fluid in one direction.
The goal is fast strike-through on initial contact and minimal rewet — the amount of fluid that returns to the surface after insult — to keep the skin-contact layer dry between changes.
Both parameters must be validated together. A low strike-through time alone does not guarantee skin dryness if the fabric structure allows capillary rewet from the core.
13 GSM Hydrophilic SS Nonwoven — Specifications and Options
Favourite Fab supplies the 13 GSM hydrophilic SS topsheet in a range of widths and treatment intensities.
The standard grade is optimised for baby diaper topsheet applications. Variants with different embossing patterns or treatment levels are available for adult incontinence and feminine hygiene pads.
The table below shows standard specification parameters. Custom widths, surface treatments, calender patterns, and pigmented grades are available on request.
| Parameter | Specification | Detail |
|---|---|---|
| Basis Weight (GSM) | 13 GSM ± 1.0 | Ultra-light grade; measured per EDANA 40.3 gravimetric method |
| Construction | SS (Spunbond-Spunbond) | Two-layer PP thermally calendered; no chemical binders used |
| Width | 1,600 mm – 3,200 mm | Slit rolls supplied to customer converting machine width specification |
| Strike-Through Time (1st strike) | ≤ 3.0 seconds | Tested per EDANA 150.3; 3rd strike ≤ 4.5 seconds |
| Rewet | ≤ 0.15 g | Measured per EDANA 151.3 after three insults at standard load |
| Tensile Strength MD | ≥ 18 N/5 cm | Machine direction; tested per EDANA 20.2 at 200 mm gauge length |
| Tensile Strength CD | ≥ 8 N/5 cm | Cross direction; tested per EDANA 20.2 |
| Elongation at Break MD | 50 – 80% | Suitable for high-speed diaper converting at 400–600 PPM |
| Elongation at Break CD | 60 – 100% | Cross-direction stretch accommodates diaper chassis tension |
| Hydrophilic Treatment | Durable surfactant finish | Retains wettability through 3 standardised wash cycles; COA confirmation available |
| Fiber Polymer | Virgin PP (polypropylene) | Skin-safe; no recycled fiber content in topsheet grade |
Applications for 13 GSM Hydrophilic SS Nonwoven Topsheet
The 13 GSM hydrophilic SS topsheet is used across multiple absorbent hygiene product categories where ultra-light skin-contact layers are specified.
Understanding the application context helps Favourite Fab’s technical team recommend the right treatment level and embossing pattern for your product.
Baby diapers: The topsheet is the first layer the infant’s skin contacts. Softness and rapid strike-through are non-negotiable requirements. The 13 GSM SS grade is widely adopted by mid-to-premium diaper brands targeting softness at minimum material cost.
Sanitary pads and panty liners: Feminine hygiene products require topsheets that manage menstrual fluid, which is more viscous than saline test fluid. The surfactant treatment level on the 13 GSM grade is tuned to handle this viscosity range while maintaining a dry surface feel.
Adult incontinence products: Adult brief topsheets face higher insult volumes and more demanding rewet requirements. The 13 GSM SS grade is used in light incontinence products and pads; for full-brief adult products, buyers typically move to a 15–17 GSM grade with higher tensile to handle the larger product format.
Why Source From Favourite Fab
Diaper and sanitary pad manufacturers across 50+ countries trust Favourite Fab for consistent topsheet supply.
Here is why procurement teams and quality managers choose us over spot-market suppliers.
- MOQ-friendly: We work with both large diaper plants running multiple converting lines and emerging hygiene brands in early production scale-up. Minimum order quantities are structured to reduce your inventory risk without requiring a full container for initial qualification.
- Export-ready logistics: We supply to over 50 countries with complete export documentation — commercial invoice, packing list, certificate of analysis, EDANA test reports, and MSDS. All paperwork is prepared to the import requirements of your destination country.
- ISO certified manufacturing: Our production facilities operate under ISO quality management systems. Every roll ships with a batch-specific certificate of analysis covering all key performance parameters.
- 10+ years of nonwoven expertise: Our team has been producing and qualifying SS topsheet fabrics since the early growth period of India’s hygiene nonwoven industry. We understand converter requirements and can support qualification efficiently.
- Custom specifications: GSM tolerance, width, embossing pattern (diamond, wave, custom), treatment intensity, and colour (white or pigmented) can all be tailored to your product development specification.
- Consistent line performance: Our roll uniformity — coefficient of variation for GSM across and along the roll — is validated to minimise downtime and reject rates on your converting machine.
Pricing and MOQ
Favourite Fab offers competitive wholesale pricing for the 13 GSM hydrophilic SS nonwoven topsheet.
Pricing depends on order volume, roll width, treatment specification, embossing pattern, and destination port.
We do not publish fixed price lists — all quotations are based on confirmed technical and commercial requirements submitted by the buyer.
To receive a formal quotation, share your target width, monthly volume in tonnes or million square metres, required EDANA test standards, and destination port.
Our sales team responds within one business day with a detailed commercial offer.
Sample rolls are available for EDANA strike-through and rewet qualification testing before you commit to production volumes.
Qualification samples are dispatched with full COA so your quality team can run parallel tests.
How to Order
- Send your specification: Email sale@favouritehub.com with your target GSM, converting width, monthly volume, and any required test certifications or embossing pattern requirements. You can also WhatsApp us at +91-9528811566 for a faster first response.
- Receive quotation and samples: Our technical team reviews your requirements and sends a formal commercial quotation within one business day. Qualification sample rolls — typically one to three rolls depending on your converting line requirements — are dispatched on your confirmation along with the certificate of analysis and relevant EDANA test reports.
- Confirm and schedule production: Once you approve the sample performance results and commercial terms, we confirm the production schedule and issue a proforma invoice for your order quantity. First shipment typically dispatches within the lead time agreed at quotation stage.
Frequently Asked Questions
Q: What does SS construction mean in a nonwoven topsheet?
A: SS stands for Spunbond-Spunbond. Two continuous layers of spunbond polypropylene are formed and thermally bonded together through a heated calendar roll. This gives the topsheet higher tensile strength, better GSM uniformity across the roll width, and a finer surface texture than a single-layer SB fabric of equivalent weight — all critical properties for high-speed diaper converting.
Q: How is hydrophilic treatment applied and how durable is it?
A: The surfactant is applied as a finish during the nonwoven production process — either in-line during fiber formation or as a post-treatment bath. It is designed to remain active through normal roll handling, storage periods of up to 12 months under standard conditions, and the converting process heat and tension. Favourite Fab’s standard grade maintains wettability through three wash cycles per our internal test protocol, with results confirmed on every batch COA.
Q: What is the standard test method for topsheet strike-through time?
A: Strike-through time for absorbent hygiene topsheets is measured per EDANA 150.3 (or equivalent ISO 9073-8). The test simulates a fluid insult at a defined volume and applied pressure, recording the time in seconds for the liquid front to pass through the fabric onto the absorption layer below. Favourite Fab targets ≤ 3.0 seconds for the first strike and ≤ 4.5 seconds for the third strike on the 13 GSM SS grade.
Q: Can Favourite Fab supply embossed or pigmented topsheet?
A: Yes. We offer diamond, wave, dot, and custom embossing patterns through calendar roll tooling. Colour options include standard white and pigmented grades in blue, pink, green, and custom colours. Submit your design specification and colour reference and our team will confirm the feasibility and associated lead time for tooling and production setup.
Q: What is the minimum order quantity for the 13 GSM topsheet?
A: MOQ is structured to accommodate both emerging hygiene brands in early production scale-up and large diaper plants with high monthly volumes. Contact our sales team at sale@favouritehub.com with your target monthly volume and we will confirm the applicable MOQ and pricing tier for your situation. Qualification samples are available before any production commitment.
Q: Do you supply test reports and quality certificates with every shipment?
A: Yes. Every production shipment includes a batch-specific certificate of analysis covering GSM, tensile strength (MD and CD), elongation, strike-through time (1st and 3rd strike), and rewet values. Additional third-party EDANA test reports and declaration of compliance documents can be arranged for export shipments requiring regulatory documentation at the destination country.
Contact Favourite Fab
Favourite Fab is a B2B raw material supplier specialising in nonwoven fabrics for the hygiene, medical, and industrial sectors.
We have been supplying the 13 GSM hydrophilic SS nonwoven topsheet to manufacturers across India, Southeast Asia, the Middle East, Africa, and Europe for over 10 years.
Our ISO-certified manufacturing, MOQ-friendly order structure, and export-ready logistics make us a reliable upstream partner for hygiene product brands at every scale.
Get in touch with our sales team today to request samples, a technical data sheet, or a formal commercial quotation.
We respond within one business day.
- Email: sale@favouritehub.com
- WhatsApp: +91-9528811566
- Website: favouritehub.com
Send us your topsheet specification now and receive a quotation within one business day.
Our technical team is ready to support your qualification from sample dispatch to full production approval.
Related Hydrophilic Cluster Resources
- Master Pillar: Hydrophilic Non Woven Fabric Manufacturer India — production, grades (SS / SSS / SMS / HATB / spunlace), GSM matrix, B2B ordering.
- Application Pillar: Hydrophilic Top Sheet for Diapers and Hygiene Products — topsheet selection logic for baby diaper, sanitary napkin, adult incontinence, underpad.
- Process Pillar: Hydrophilic Hot Air Through Nonwoven Fabric — HATB / TAB lofty topsheet + ADL grades, bicomponent fibers, premium hygiene applications.
Gaurav Garg
I'm Gaurav Garg, CEO of Favourite Fab, a company on a mission to revolutionize the nonwoven industry with sustainable practices. We work hand-in-hand with manufacturers and suppliers who share our commitment to eco-friendly production. With a deep interest in textile innovation, I'm passionate about educating consumers about sustainable material options and their potential to transform the nonwoven landscape.
