What is double-sided blockout fabric made of?

It consists of 100% polyester front and back face layers, plus a black opaque middle PU coating or black yarn interlayer, formed into laminated or woven multi-layer construction. This design achieves full light blocking, stable dual printing surfaces and zero image show-through between two sides.

How does blockout fabric prevent graphic show-through?

A central black opaque layer blocks light transmission completely. It eliminates ghosting between printed patterns on two sides, keeps high color contrast on both surfaces, and maintains independent clear graphics, which is critical for professional double-sided signage.

Why is polyester adopted for blockout fabric?

Polyester brings high tensile strength, stable dimension under tension, great compatibility with sublimation printing, fast-drying property after moisture exposure, and cost efficiency for mass industrial production.

HS-29 Double-sided Printing Blockout Fabric - Black 280g

Product parameters

Weight (g/㎡)	280
Width (m)	0.7-3.2m
Length (m)
Compatible Ink
Application

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What Is Double-sided Printing Blockout Fabric - Black 280g?

Doubleside Printing Blockout Fabric is a specialized material designed to block light and allow for vibrant double-sided printing, making it ideal for banners, flags, and signage requiring distinct designs on each side. Featuring a unique interlayer of black or white yarn, this fabric prevents any show-through between designs, ensuring clarity and independence on both sides. Commonly used for applications like pole pocket banners and flags, the fabric offers excellent privacy, UV protection, and weather resistance, making it suitable for both indoor and outdoor use. Compatible with direct sublimation and heat transfer printing, doubleside printing blockout fabric supports high-quality, full-color graphics, providing a versatile and durable solution for impactful displays.

FAQs

What does 280gsm blockout fabric mean?

280gsm refers to the weight of the fabric per square meter (grams per square meter).

A 280gsm blockout fabric means:

Heavy-duty textile structure

Higher durability and stability

Stronger opacity performance

Better flatness for large-format printing

It is commonly used for premium signage and exhibition graphics.

What is blockout fabric made of?

Double-sided blockout fabric is typically made of:

100% polyester face layers

Black opaque middle layer (PU coating or black yarn interlayer)

Laminated or woven multi-layer structure

This construction ensures:

Full light blocking

Stable print surfaces on both sides

No image interference or show-through

What is double-sided blockout fabric used for?

It is widely used for:

Double-sided hanging banners

Exhibition and trade show displays

Retail advertising signage

Roll-up displays and tension frames

Indoor and semi-outdoor branding systems

It is ideal where both sides of a banner must display different graphics clearly.

How does blockout fabric prevent show-through?

Blockout fabric uses a central opaque layer (usually black) that blocks light transmission.

This ensures:

No ghosting between printed sides

High contrast on both surfaces

Clean and independent graphic visibility

This structure is essential for professional double-sided signage applications.

What are the advantages of 280gsm blockout fabric?

Key advantages include:

100% light blocking performance

Excellent double-sided print clarity

Strong and stable heavy-duty structure

Flat hanging behavior (no curling)

High durability for repeated use

Why is polyester used in blockout fabric?

Polyester is used because it provides:

High tensile strength

Dimensional stability under tension

Excellent print compatibility

Fast drying performance

Cost-effective mass production

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