Matsui Digiace Digital Screen Clear | Water-Based Clear Primer for Digital Hybrid Screen Printing — Create a Smooth Bonding Layer Between Screen Print Underbase and Digital Inks on M&R Digital Squeegee and ROQ Hybrid Presses

Name: Matsui Digiace Digital Screen Clear | Water-Based Clear Primer for Digital Hybrid Screen Printing — Create a Smooth Bonding Layer Between Screen Print Underbase and Digital Inks on M&amp;R Digital Squeegee and ROQ Hybrid Presses
SKU: 60457
Availability: BackOrder

Matsui

Matsui Digiace Digital Screen Discharge White is an ultra-soft water-based discharge white underbase ink designed specifically for digital hybrid screen printing on 100% cotton garments. Where standard DS Hybrid UB White deposits white ON TOP of the fabric surface, Discharge White chemically removes the garment dye and embeds white pigment INTO the cotton fibers — producing the softest possible hand feel achievable in digital hybrid printing. The premium underbase for fashion-forward, retail-quality digital hybrid production. Recommended for use with Digiace Digital Screen Clear over it for best results. Requires Discharge Activator. Optimized for M&R Digital Squeegee and ROQ Hybrid / ROQ Now systems. Prints through mesh up to 230. Cure at 320°F (160°C) for 2-3 minutes. PVC-free.

Price range: $29.99 through $399.99

Ink Size

5 Gallon
Gallon
Quart

Clear

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SKU: N/A Category: Matsui Digital Inks Tags: best discharge white digital hybrid garment printing, Digiace Discharge White screen printing, digital hybrid discharge white soft hand cotton, discharge white underbase digital screen printing cotton, M&R Digital Squeegee discharge white ink, Matsui Digiace Discharge White digital hybrid, Matsui Digiace Discharge White ultra soft, Matsui digital discharge white underbase, ROQ Hybrid discharge white underbase, softest white underbase digital hybrid printing

Description

Digiace Discharge White — The Softest Underbase in Digital Hybrid Printing

Standard digital hybrid underbases sit on TOP of the fabric. You can feel them. They add thickness. They change the hand.

Digiace Discharge White takes a completely different approach. Instead of depositing white ink on the surface, it uses discharge chemistry to REMOVE the garment dye and REPLACE it with white pigment embedded inside the cotton fibers. The white becomes part of the fabric. Zero surface buildup. Zero thickness. The softest possible hand feel in digital hybrid printing.

For premium brands, fashion-forward tees, and retail-quality production where hand feel is non-negotiable, Discharge White is the underbase that delivers.

Discharge White in the Digital Hybrid Workflow

Discharge workflow on dark 100% cotton:

Digiace Discharge White + Activator → screen printed (THIS PRODUCT — discharge underbase)
Digiace Digital Screen Clear → screen printed primer (bonding surface for digital inks)
Digital inkjet CMYK → printed by M&R Digital Squeegee or ROQ Hybrid
DS Hybrid Top Coat → screen printed sealer (protection + durability)

⚠️ Important: Discharge White requires Digiace Digital Screen Clear printed over it for best digital ink bonding. Also requires Discharge Activator (3-8%) to enable the discharge chemistry.

Why Discharge White Instead of Standard UB White?

The answer is hand feel — and fabric type.

Spec	Digiace Discharge White (This Product)	DS Hybrid UB White	DS Hybrid Pre-Digital White
How It Works	REMOVES garment dye + EMBEDS white INTO cotton fibers. White becomes part of the fabric.	Deposits white ON TOP of fabric surface. Surface ink layer.	Deposits white ON TOP of fabric surface. Surface ink layer.
Hand Feel	ULTRA-SOFT — softest possible. Zero surface buildup. Feels like bare fabric.	Soft — but you can still feel the ink layer	Soft — but you can still feel the ink layer
Substrates	⚠️ 100% COTTON with dischargeable (reactive) dyes ONLY	Cotton, blends, polyester, performance	Cotton, blends, polyester, performance
Activator?	⚠️ YES — Discharge Activator REQUIRED (3-8%)	No	No
Max Mesh	230	160	160
Needs Clear Over It?	YES — Digiace Clear recommended	YES — Digiace Clear recommended	NO — standalone
Pot Life	12 hours once activated	N/A — no activation needed	N/A — no activation needed
Best For	Premium 100% cotton. Fashion brands. Retail quality. Hand feel is the #1 priority.	Any dark fabric. Best digital ink performance with full Clear workflow.	Simplified workflow. Fewer steps. Good when speed matters.

The decision: Is the garment 100% cotton AND is hand feel the top priority? → Discharge White. Anything else → UB White or Pre-Digital White.

Matsui Digital Hybrid Product System — 5-Product Master Comparison

Product	Type	Position in Workflow	Function	Max Mesh	Used With	Substrates	Activator?
DS Hybrid UB White	White underbase	FIRST — screen printed	Opacity + dye block on dark garments. Standard white underbase for digital hybrid.	160	Needs Digiace Clear or Pre-Digital Clear over it	Cotton, blends, performance	No
Digiace Discharge White (THIS PRODUCT)	Discharge white underbase	FIRST — screen printed	Removes garment dye + replaces with white. Ultra-soft hand. SOFTEST underbase option.	230	Needs Digiace Clear over it	⚠️ 100% cotton only	YES — Discharge Activator required
DS Hybrid Pre-Digital White	Standalone white underbase	FIRST — screen printed	White underbase that works ON ITS OWN — does NOT require Clear layer over it.	160	Can be used alone — no Clear needed	Cotton, blends, performance	No
Digiace Digital Screen Clear	Clear primer/bonding layer	SECOND — screen printed AFTER white underbase, BEFORE digital print	Creates smooth bonding surface for digital inks. Improves color vibrancy, adhesion, and definition.	230	Printed over UB White or Discharge White	Cotton, blends, performance	No
DS Hybrid Top Coat	Clear overprint sealer	LAST — screen printed AFTER digital print	Encapsulates and protects the digital print. Locks in color, adds abrasion/UV/wash resistance.	230	Recommended with low-resin digital inks	Cotton, blends, performance	No

⚠️ The Discharge Rules — Digital Hybrid Edition

100% cotton with dischargeable (reactive) dyes ONLY. Does not discharge polyester or synthetic fibers. On blends, only cotton threads discharge — creating a distressed/heathered look.
Discharge Activator REQUIRED (3-8%). Matsui or Printers Choice Discharge Activator. No activator = no discharge.
12-hour pot life once activated. Mix only what you need for the day’s production.
Cure at 320°F (160°C) for 2-3 minutes. Extended dwell time for discharge chemistry.
Ventilation recommended. Discharge produces fumes during curing.
Not all garments discharge equally. Discharge effectiveness varies by brand, dye lot, and cotton type. Re-dyed shirts may not discharge well. Test before production.
Use water-resistant emulsions. The water-based discharge chemistry can break down standard emulsions.

⚠️ Critical Contamination Warning

Digiace Discharge White MUST be mixed in clean vessels using clean mixing blades and utensils. Any contamination from other ink sources or non-approved additives could cause Discharge White to test positive for restricted PVCs. This is especially critical with discharge inks — do NOT cross-contaminate with plastisol or other ink systems.

Why Screen Printers Choose Digiace Discharge White

“I want the softest possible hand feel on my digital hybrid prints.”

Discharge White is the only underbase in the system that embeds white INTO the cotton fibers instead of depositing it on the surface. Zero surface buildup = the softest hand feel achievable.

“I print premium 100% cotton tees for fashion brands.”

Fashion and retail customers expect prints that feel like bare fabric. Discharge White delivers that expectation. Combined with Digiace Clear and Top Coat, the full discharge workflow produces magazine-quality digital hybrid prints.

“I already use Matsui discharge inks in traditional screen printing.”

Discharge White follows the same chemistry and rules. Same activator. Same cotton requirements. Same 12-hour pot life. Same emulsion and ventilation considerations. The digital hybrid workflow just adds Clear + digital print + Top Coat on top.

“I need a white underbase that works through higher mesh.”

Discharge White prints through mesh up to 230 — higher than UB White (160) or Pre-Digital White (160). Higher mesh = finer detail and softer deposit.

Technical Specifications

Specification	Detail
Product Name	Matsui Digiace Digital Screen Discharge White
Type	Discharge white underbase for digital hybrid printing
Ink System	Matsui Digiace / DS Hybrid digital screen printing system
Color	White (discharge — embeds into cotton fibers)
Position in Workflow	FIRST — screen printed. Needs Digiace Clear over it before digital pass.
Compatible Equipment	M&R Digital Squeegee, ROQ Hybrid, ROQ Now
Mesh	Up to 230
Cure	320°F (160°C) for 2-3 minutes
Substrates	⚠️ 100% cotton with dischargeable (reactive) dyes ONLY
⚠️ Activator	Discharge Activator REQUIRED — 3-8%. Matsui or Printers Choice.
Pot Life	12 hours once activated
Viscosity	Ready for use — no modifications needed
Clear Layer Required?	YES — Digiace Clear recommended over Discharge White
Top Coat Recommended?	YES — DS Hybrid Top Coat for protection and durability
Emulsions	Water-resistant emulsions required
Ventilation	Recommended — discharge produces fumes during curing
Storage	65°F to 95°F (18°C to 35°C). Avoid direct sunlight.
Cleanup	Water and mild soap/detergent
Formulation	PVC-free
⚠️ Contamination	Mix in clean vessels only. Contamination may cause positive PVC tests.

Technical Sheets / Safety Data Sheets / Documents

FREQUENTLY ASKED QUESTIONS

What makes Discharge White different from UB White?

UB White deposits white ON TOP of the fabric surface. Discharge White chemically REMOVES the garment dye and embeds white INTO the cotton fibers. The result is the softest possible hand feel — zero surface ink layer.

What activator do I need?

Matsui or Printers Choice Discharge Activator at 3-8% by weight. 12-hour pot life once activated. Mix only what you need.

Does it work on polyester?

⚠️ NO. Discharge White works ONLY on 100% cotton with dischargeable (reactive) dyes. Does not discharge polyester, nylon, or synthetic fibers. For blends or polyester, use UB White or Pre-Digital White instead.

Do I need Digiace Clear over Discharge White?

YES — Digiace Digital Screen Clear should be printed over Discharge White before the digital inkjet pass for best digital ink bonding and color performance.

What equipment is it designed for?

M&R Digital Squeegee, ROQ Hybrid, and ROQ Now digital screen printing systems.

What mesh should I use?

Up to 230 mesh — higher than UB White (160) or Pre-Digital White (160). Higher mesh produces finer detail and softer deposit.

Do I need ventilation?

Yes — discharge chemistry produces fumes during curing. Adequate ventilation is recommended for all discharge printing.

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