Matsui Brite Discharge Base | Water-Based Discharge Mixing Base for Vivid Custom Colors on Dark Cotton — Mix with Neo Pigments for Pantone-Matched Discharge Prints

Matsui Brite Discharge Base — The Brightest Colors From the Darkest Shirts

The magic of discharge printing: you start with a black shirt. You print a color. You cure the garment. The garment dye under your print chemically disappears — and the color you printed takes its place. The print is not sitting ON the fabric. It is IN the fabric. The cotton fibers themselves are now the color you printed.

The result: the softest possible print. There is no ink layer to feel. No surface buildup. No rubbery film. The garment feels like it was dyed that color — because in a real sense, it was. The original dye was removed and your color was substituted.

Brite Discharge Base is where this process starts.

It is a neutral, clear discharge mixing base — no color, no pigment, no white. It contains the discharge-compatible binder and the chemistry that works with the discharge activator to strip the garment dye. YOU supply the color by adding Matsui Neo Pigments. The Brite Discharge system is specifically formulated for the brightest, most vivid color results in discharge printing — the colors that make clients say “how did you get that on a black shirt?”

How Discharge Printing Works

Step 1: Mix. Combine Brite Discharge Base + discharge activator (3-8% Matsui or Printers Choice Discharge Activator) + Neo Pigments (for color) in a clean vessel. Mix thoroughly.

Step 2: Print. Screen print the activated ink onto a dark 100% cotton garment with reactive (dischargeable) dyes.

Step 3: Cure. Run the garment through the dryer at 320°F (160°C) for 2-3 minutes. During curing, the discharge activator chemically breaks down the garment dye in the printed areas. The garment dye disappears. The Neo Pigment color replaces it — embedding directly into the cotton fibers.

Step 4: Result. The dark garment now has vivid color areas where the original dye has been removed and replaced with your custom color. The print has zero surface buildup. The hand feel is identical to the fabric itself.

Without Neo Pigments: If you print Brite Discharge Base + activator without adding Neo Pigments, the garment dye is removed but no replacement color is deposited. The printed area returns to the natural base color of the cotton (usually off-white or cream). This creates a “white” discharge effect — or more accurately, a “natural fiber” discharge. Use this technique as a soft-hand underbase for overprinting with water-based colors or plastisol.

Three Modes — Custom Color, Clear Discharge, Soft-Hand Underbase

Mode 1: Custom Color Discharge (Primary Use). Mix with Neo Pigments (up to 15%) + discharge activator (3-8%). The garment dye is removed and the Neo Pigment color replaces it. One step: strip + color in a single print. Use Matsui CMS Color Matching Software for precise Pantone formulas.

Mode 2: Clear Discharge (No Pigment). Mix with discharge activator only — no Neo Pigments. The garment dye is stripped, revealing the natural cotton base color (off-white/cream). Use as a standalone effect for tone-on-tone natural-on-dark designs.

Mode 3: Soft-Hand Underbase. Use as a discharged underbase for overprinting. Print Brite Discharge Base + activator on dark cotton → cure → the discharge removes the garment dye in the print area → overprint with water-based colors or plastisol on the now-lightened area. The discharge underbase provides a lighter surface for the overprint while maintaining an ultra-soft hand.

⚠️ The Discharge Rules — Read Before Printing

Discharge printing has specific requirements that standard water-based printing does not:

100% cotton with reactive dyes ONLY. Discharge chemistry removes reactive garment dyes. It does NOT remove pigment dyes, sulfur dyes, or non-reactive dyes. It does NOT discharge polyester, nylon, or synthetic fibers. On 50/50 cotton/poly blends, only the cotton threads discharge — the polyester threads retain their original color, creating a heathered/distressed look. Always test the specific garment brand and batch before production.

Discharge activator is REQUIRED. Brite Discharge Base does NOT discharge on its own. You MUST add discharge activator (3-8%) to enable the dye-removal chemistry. Without activator, the base functions as a standard water-based binder with no discharge effect.

12-hour pot life once activated. Once you add discharge activator to the base, the activated ink has a shelf life of approximately 12 hours. Mix only what you need for the day’s production. Do not store activated ink overnight.

Cure for 2-3 minutes at 320°F. Discharge printing requires longer cure times than standard water-based printing. The extended dwell time is needed for the discharge chemistry to fully break down the garment dye. If the print appears darker in some areas than others, the garment needs more cure time.

Ventilation required. Discharge ink emits strong fumes during curing (this is the garment dye being chemically broken down). Ensure proper dryer ventilation to dissipate the odor.

Re-dyed shirts may not discharge well. Garments that have been re-dyed (dyed a second time over the original color) may not discharge the first color layer. Check with your garment supplier for discharge-compatible brands and batches.

Test before production. Always. Discharge effectiveness varies by garment brand, dye lot, and cotton type.

The Matsui Discharge Product Guide — All Seven Products Compared

Matsui makes seven discharge and discharge-compatible products. Each serves a different role. This chart shows how all seven fit together — so you can choose the right product for your specific job.

Quick Decision Guide

Brightest custom COLORS on dark cotton → Brite Discharge Base + Neo Pigments + activator

Finest halftone COLOR detail on dark cotton → HM Discharge Base + Neo Pigments + activator

One base for light AND dark cotton → 301DM Base (water-based mode or discharge mode)

Softest, finest halftone WHITE at 305 mesh → HM Discharge White + activator

Brightest, most opaque spot WHITE → Brite Discharge White + activator

Budget-friendly pre-blended WHITE → Brite Discharge Super 75 + activator

Alpha Series hybrid system → Alpha Trans White (water-based on lights, discharge on darks)

The 50/50 Blending Shortcuts

Brite Discharge Base + HM Discharge Base (50/50) → brighter colors at up to 230 mesh

Brite Discharge White + HM Discharge White (50/50) → brighter white at up to 230 mesh

Why Screen Printers Choose Brite Discharge Base

“I want the most vivid custom colors on dark cotton shirts.”
This is the core Brite Discharge Base use case. Mix with Neo Pigments + discharge activator. The Brite system delivers the brightest color results in the Matsui discharge lineup — vibrant reds, blues, greens, yellows, and full Pantone range on black, navy, and dark garments.

“I want zero hand feel — the print should feel like the fabric itself.”
Discharge printing embeds the color INTO the cotton fibers. There is no ink layer on the surface. The hand feel is identical to undyed fabric. This is the softest possible print in screen printing — softer than even the softest water-based ink, because there is literally no surface ink to feel.

“I want precise Pantone-matched discharge colors.”
Use Matsui CMS Color Matching Software with Neo Pigments to calculate exact discharge color formulas. Same Neo Pigment system, same Pantone formulas — just in a discharge base instead of a standard water-based base.

“I want to discharge to natural and overprint with color or plastisol.”
Print Brite Discharge Base + activator (no pigment) to strip the garment dye. The printed area returns to the natural cotton base color. Flash or cure. Then overprint with standard Matsui water-based colors, plastisol, or any compatible ink system on the lightened discharged area.

“I need to blend for brighter prints at higher mesh.”
Blend Brite Discharge Base 50/50 with HM Discharge Base to get the brightness advantage of the Brite system through mesh up to 230/inch. The blend inherits brightness from Brite and high-mesh flow from HM.

“My discharge ink keeps drying in the screen.”
Add Retarder MG (1-5%) or Quick Additive (6-9%). Use the mesh lubricant technique (30% Softener MG + 70% water). Keep fresh ink in the screen. Use thin-thread mesh like Saati Hydro mesh for larger open area that resists clogging.

Key Features

• Brightest Custom Discharge Colors: The Brite system delivers the most vivid color results in the Matsui discharge lineup when mixed with Neo Pigments.
• Neutral / Clear Base — No Color or Pigment: You control the color entirely through Neo Pigment additions. Or print without pigment for clear discharge to natural cotton.
• Zero Hand Feel: Discharge printing embeds color INTO the cotton fibers — no surface ink layer. The softest possible print.
• Mixable with Neo Pigments (up to 15%): Full Pantone range using Matsui CMS Color Matching Software.
• High Mesh Capability (305/inch): Fine detail spot color discharge.
• 50/50 Blend with HM Discharge Base: Brighter prints through mesh up to 230/inch.
• Soft-Hand Underbase Capability: Discharge the garment dye, then overprint with water-based colors or plastisol.
• ⚠️ Discharge Activator Required (3-8%): Does not discharge without activator. 12-hour pot life once activated.
• ⚠️ 100% Cotton with Reactive Dyes Only: Does not discharge polyester or non-reactive dyes. Test garment before production.
• Production-Optimized with Matsui Additives: Retarder MG, Fixer WF-N, Softener MG, Quick Additive, plus the mesh lubricant technique.
• PVC-Free: Environmentally safe.

Recommended Additives for Brite Discharge Base Production

Pro tip — mesh lubricant: Mix 30% Softener MG + 70% water in a spray bottle. Wipe on the ink side of the mesh before printing. Lubricates the mesh threads and prevents ink from sticking in the open areas — keeps your image crisp and prevents the design from closing in during the run.

Production best practices: Less ink is better on the screen. Add a small amount and continuously add fresh, hydrated ink during the run. Do not let discharge ink sit unused in the screen — it dries faster than standard water-based inks.

Browse the complete Matsui additive collection here.