Heat Sealable Nonwoven Fabric Manufacturer India | Favourite Fab

Manufacturer & Exporter · Agra, India

Heat Sealable Nonwoven Fabric
Manufacturer India

PE/PP bico spunbond nonwoven fabric that seals cleanly on bar seal, ultrasonic, and impulse machines at 130C. No adhesives. No deformation. Available 20-80 GSM with custom width.

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130C

Seal Temperature

Machine Types

180+

Countries Exported

Heat Sealing Methods Comparison

3 COMPATIBLE SEAL METHODS

BAR SEAL

FABRIC

130-150C direct
heat contact

ULTRASONIC

20-40kHz vibration
friction heat

IMPULSE

Electric pulse heat
cool under pressure

All 3 methods work with PE/PP Bico Spunbond

130C – 150C Sealing Window
100C
200C

130C
PE melt point

160C
PP melt point

30C
safe sealing gap

PE bonds. PP stays solid. Perfect seal every time.

The Basics

What Is Heat Sealable Nonwoven Fabric?

Heat sealable nonwoven fabric is a nonwoven material that can be bonded to itself or another layer using heat and pressure alone, without any adhesive. The sealing happens when the outer surface of the fabric melts slightly and fuses with the adjacent layer, forming an airtight, strong bond.

The most widely used heat sealable nonwoven is PE/PP bicomponent spunbond. The PE sheath melts at ~130C while the PP core stays solid at ~160C. This 30C gap creates a forgiving sealing window that works reliably across bar seal, ultrasonic, and impulse sealing machines.

This fabric is used wherever you need a fast, clean, adhesive-free seal in production. The primary applications are desiccant pouches, hygiene product covers, and filtration bags. See our full desiccant fabric range at silica gel packaging material.

How Heat Sealing Works on Bico Spunbond

BEFORE

Fabric Layer 1

Fabric Layer 2
PE sheaths separate
not yet bonded

→
130-140C
heat + pressure

AFTER

FUSED BOND ZONE
PE sheaths fused
airtight seal formed

No Adhesive
Clean seal
food safe

PP Intact
No shrinkage
no warping

30C Gap
Wide sealing
window

Result: airtight, consistent bond on every machine run

130CSeal Starts

30CSafe Window

ZeroAdhesive Needed

Machine Compatibility

Compatible with 3 Sealing Machine Types

Our heat sealable nonwoven works on every standard production sealing machine. No machine upgrades required.

⚡ Bar Seal Machine

Most common method

Heated metal bar presses directly onto the fabric at 130-150C. Simple, fast, and reliable. Used in most desiccant pouch production lines. Compatible with all standard bar widths.

🔊 Ultrasonic Seal Machine

Cleanest seal quality

High-frequency vibration generates friction heat at the fabric interface. PE sheath melts and bonds without external heat contact. Produces the cleanest seal with no burn risk. Ideal for food and pharma grade pouches.

⚡ Impulse Seal Machine

Best for thin films

Electric impulse heats a nichrome wire element briefly. Fabric cools under pressure to form a strong bond. Good temperature control makes it suitable for thinner GSM fabrics and precise sealing requirements.

Technical Data

Full Specification Sheet

Standard specifications for heat sealable nonwoven fabric. Custom options available.

Parameter	Specification
Material	PE/PP Bicomponent Spunbond – PP core + PE sheath
GSM Range	20 GSM to 80 GSM
Available Width	5.5 cm to 200 cm – custom widths on request
PE Sheath Melt Point	~130C – bonds at seal temperature
PP Core Melt Point	~160C – stays solid, maintains structure
Sealing Temperature	130C to 150C
Sealing Pressure	0.2 to 0.6 MPa (varies by machine and GSM)
Sealing Time	0.5 to 2 seconds (bar seal typical)
Compatible Machines	Bar seal – Ultrasonic seal – Impulse seal
Surface	Smooth, uniform filament structure
Colour	White (standard) – Other colours on request
Packing	Roll form – core diameter customisable
Certifications	ISO – OEKO-TEX – REACH – FDA 21 CFR (food grade on request)

Performance

Key Properties of Heat Sealable Nonwoven

🔥

Clean Adhesive-Free BondNo adhesives, no chemical binders. The PE sheath melts and fuses directly. This is critical for food, pharma, and medical applications where adhesive contamination is not acceptable.

📋

Consistent Seal Width and StrengthThe tight GSM tolerance across the roll ensures consistent seal width and peel strength in every production run. No variation means no rejects from weak seals.

🌊

High MVTR Maintained After SealingOnly the sealed area bonds. The open fabric area retains full breathability. For desiccant pouches, this means the fabric continues to allow moisture vapour through at rated capacity.

💪

No Distortion or ShrinkageThe PP core stays solid throughout the sealing process. The fabric does not shrink, warp, or deform around the seal zone. Pouch shape and dimensions stay exact.

Applications

Where Heat Sealable Nonwoven Is Used

🧪Desiccant PouchesSilica gel, clay, molecular sieve, activated carbon pouches

🍕Food PackagingFood grade desiccant pouches, tea bags, filter sachets

💊PharmaceuticalsMedicine desiccant inserts, drug packaging sachets

🩺Hygiene ProductsSanitary pad and diaper cover construction

🔬Filtration BagsAir and liquid filter bags, industrial filtration

💻ElectronicsMoisture protection pouches for PCBs and components

🌿AgricultureSealed crop cover edges, protective plant bags

🚘AutomotiveSealed component protection bags during transit

Why Favourite Fab

Get Free Sample Kit Of Our Fabric At Your Door Step

Online Order
Door Delivery
1-Click Quotation

Why Source From Us?

180+Countries ExportedEstablished global supply chain with full export documentation

10+Years ManufacturingDeep experience in heat sealable nonwoven for multiple industries

FreeSample AvailableTest seal performance on your own machine before ordering

CustomGSM & WidthMatched to your sealing machine spec and product requirement

ISO Certified
GMP
CE
OEKO-TEX
FDA 21 CFR
REACH

Getting Started

How to Order

3 steps from enquiry to shipment.

Send Your SpecsShare GSM, width, sealing machine type, temperature setting, and monthly volume. Send your existing spec sheet if available.

Test Free SampleWe dispatch a sample roll before you confirm the order. Run a seal test on your machine and check seal strength and appearance.

Confirm & ShipOnce approved, we confirm production lead time and ship with full export documentation and compliance certificates.

Request a Free Sample Today

We respond within 24 hours. Samples dispatched within 48 hours of spec confirmation.

sale@favouritehub.com
WhatsApp: 9528811566
+91 95288 11566

FAQ

Frequently Asked Questions

What temperature should I set my bar seal machine?+

For PE/PP bico spunbond we typically recommend starting at 135C and adjusting based on your seal quality test. The effective range is 130C to 150C. Lower temperatures within this range are suitable for thinner GSM. We can advise on exact settings after you share your machine model and current GSM spec.

Will the fabric shrink or deform during sealing?+

No. The PP core melts at 160C which is well above the sealing temperature of 130-150C. The PP core stays completely solid during sealing and maintains the fabric structure. Only the PE sheath melts and forms the bond. There is no shrinkage or deformation of the sealed fabric.

Is this fabric suitable for food grade sealing?+

Yes. We supply food grade PE/PP bico spunbond from virgin polymer only. No recycled content, no restricted substances. Complies with FDA 21 CFR and EU 10/2011. Because sealing requires no adhesive, there is no risk of adhesive migration into food contact applications. Full compliance documentation available.

Can I use this on an ultrasonic sealing machine?+

Yes. PE/PP bico spunbond is fully compatible with ultrasonic sealing machines. The vibration-generated friction heat melts the PE sheath cleanly. Ultrasonic sealing actually produces a very clean bond with no external heat contact, which is ideal for food and pharmaceutical applications.

What is the minimum order quantity?+

We are MOQ-friendly and work with both trial orders and large production volumes. Contact us with your GSM, width, and volume requirements and we will confirm MOQ and pricing within 24 hours.

Gaurav Garg (Ceo)

I'm Gaurav Garg, the 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 processes. With a deep interest in textile innovation, I'm passionate about educating consumers about sustainable material options, and their potential to transform the Non woven landscape.

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