Liquid Strike-Through Time Test for Nonwoven Hygiene Topsheet — Standards Guide India
Liquid Strike Through Time Test Nonwoven Hygiene Topsheet is a critical B2B raw material supplied by Favourite Fab — a manufacturer-direct nonwoven fabric source serving industrial OEMs, hygiene converters, and export buyers across 50+ countries from Agra, India.
What Is Liquid Strike Through Time Test Nonwoven Hygiene Topsheet
Liquid Strike-Through Time (LSTT) is the EDANA 150.4 test that measures how fast simulated menstrual or urine fluid penetrates a nonwoven topsheet into the absorbent core. It is the key performance metric for sanitary napkin, baby diaper, and adult incontinence topsheet design. Lower strike-through time = drier surface = better consumer perception.
Liquid Strike Through Time Test Nonwoven Hygiene Topsheet — Specifications and Options
| Material / Property | Specification | Detail |
|---|---|---|
| Test method | EDANA 150.4 / ISO 9073-6 | Repeatable lab procedure |
| Fluid type | 0.9% saline (urine sim.) | Menstrual sim. for fem-care |
| Test volume | 5 mL bolus | Standardised drop |
| Target strike-through | <3.0 seconds | Premium topsheets <2.5s |
| Equipment | EDANA-spec strike-through tester | ISO 17025 lab data |
| Repeat measurement | 10 sequential strikes | Rewet performance |
| Sample conditioning | 23±2°C / 50±5% RH / 24 hr | Per EDANA protocol |
Why Source From Favourite Fab
- MOQ-friendly — suitable for small and large OEM manufacturers
- Export-ready — ships raw materials to 50+ countries from Agra, India
- ISO 9001 certified manufacturing facility
- 10+ years supplying nonwoven raw materials to industrial and hygiene OEMs
- Custom GSM, width, and treatment available on request
Pricing and MOQ
Favourite Fab offers competitive wholesale pricing structured for B2B procurement. Minimum order quantity is 500 kg per specification, with sample rolls of 10–20 kg available for machine trials. Volume pricing available for orders above 5,000 kg per month — send your specifications for a same-day FOB quote.
How to Order
- Send material specifications to sale@favouritehub.com — fabric type, GSM, width, monthly volume, treatments required
- Receive FOB or CIF quote and dispatched sample within 48 hours
- Confirm order — production starts and dispatch within 21–30 days
Frequently Asked Questions
Q: Why does strike-through time matter for hygiene topsheet?
A: Strike-through time directly correlates with consumer perception of dryness. Topsheets with LSTT <2.5 sec keep the surface 35% drier than 3.5 sec topsheets — affecting brand re-purchase rate.
Q: What topsheet construction delivers <2.5 sec strike-through?
A: Apertured PE/PP composite topsheet with hydrophilic surfactant gives best results. Spunbond + ADL bicomponent variants also achieve <2.5 sec when paired with high-capacity core.
Q: Does Favourite Fab supply topsheet to EDANA 150.4 spec?
A: Yes. Our spunbond and spunlace topsheet grades are pre-tested for LSTT and re-wet performance. TDS includes test data per EDANA 150.4 and 150.5.
Q: What is acceptable re-wet value after 10 strikes?
A: Premium hygiene topsheets target <0.3 g re-wet after 10 sequential 5 mL strikes. Mid-tier products allow up to 1.0 g. Anything above 2.0 g indicates topsheet failure.
Q: Minimum order for hygiene topsheet?
A: MOQ is 500 kg per grade and width. Sample 10 kg available with full TDS including LSTT data.
Q: Do you have an in-house EDANA testing lab?
A: Yes. Our lab runs EDANA 150.4, 150.5, 10.0, and 110 tests on every production lot. Independent third-party verification available on request.
Contact Favourite Fab
Email: sale@favouritehub.com
WhatsApp: +91-9528811566
Send your nonwoven fabric specifications today — fabric type, GSM, width, treatments, monthly volume. Receive a same-day quote and 10–20 kg sample dispatch within 48 hours for machine trials.
Technical Specifications
| Parameter | Value |
|---|---|
| GSM Range | 15–25 GSM |
| Base Fiber | Hydrophilic PP spunbond |
| Test Standard | EDANA NWSP 70.3 (Strike-Through Time) |
| Strike-Through Time (STT) | <3 seconds (first strike) |
| Rewet Value | <0.1 g (dry-back performance) |
| Fibre Diameter | 1.5–2.5 denier (soft-feel grade) |
| Width Options | 1.6 m – 3.2 m |
| Finish | Hydrophilic surfactant finish, skin-safe, non-cytotoxic |
B2B Applications & OEM Use-Cases
- Sanitary Napkin Manufacturers: Hygiene product OEMs producing sanitary napkins for domestic and export markets source our EDANA NWSP 70.3-tested topsheet nonwoven (STT <3s) to ensure rapid liquid acquisition, superior rewet performance, and BIS IS 5405 compliance in their finished product certifications.
- Baby Diaper and Adult Incontinence OEMs: Diaper manufacturers use our 15–20 GSM hydrophilic PP spunbond topsheet for its softness against neonatal skin, consistent strike-through performance across multiple insults, and compatibility with high-speed diaper assembly lines running at 600–1,200 units/minute.
- Medical and Wound-Care Product Manufacturers: Manufacturers of wound-contact dressings and post-surgical pads specify our low-GSM hydrophilic nonwoven topsheet as the wound-facing layer, where rapid fluid transfer away from the wound surface is critical for moisture management and patient comfort.
Sourcing from Favourite Fab — MOQ, Lead Time & Customisation
- MOQ: 500 kg per specification
- Lead Time: 7–14 days domestic India / 21–30 days export
- Custom Options: GSM 15–25, width 1.6 m–3.2 m, fibre denier (1.5–3.0), hydrophilic finish level, emboss pattern (diamond, wave, dot)
- Certification: ISO 9001 certified manufacturing facility, Agra, India
- Pricing: Competitive wholesale pricing — contact our B2B sales team for volume quotations
Frequently Asked Questions
What is EDANA NWSP 70.3 and how is strike-through time measured?
EDANA NWSP 70.3 is the industry-standard test protocol for measuring the time taken for a defined volume of synthetic urine (or test fluid) to pass through a nonwoven topsheet under a standard load. A lower strike-through time (STT) indicates faster fluid acquisition. A result of <3 seconds is considered best-in-class for sanitary napkin and diaper topsheets. The test is conducted at ambient temperature and reported as an average of five consecutive insults.
How does rewet value relate to topsheet quality?
Rewet (or wet-back) measures how much fluid is returned to the skin surface after the topsheet has absorbed a fluid load. A rewet value of <0.1 g indicates excellent dry-back performance — the topsheet stays dry to the touch after absorption, reducing skin irritation and rash risk. Our hydrophilic PP spunbond topsheet is engineered for both rapid strike-through and minimal rewet, the two most critical performance metrics in hygiene product design.
Can topsheet nonwoven be supplied with lotion or aloe-vera treatment?
Yes. We offer topsheet nonwoven with skin-conditioning lotion or aloe-vera extract finish applied during the manufacturing process. The treatment is uniformly distributed and non-cytotoxic (tested to ISO 10993-5). This is popular with premium sanitary napkin brands targeting sensitive-skin segments. Custom formulation and add-on levels can be discussed based on your product specification.
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.
