Matsui Phantom Clear Disappearing Ink | Invisible Water-Activated Screen Printing Ink for Activewear and Gym Apparel

Matsui Phantom Clear – The Invisible Ink That Reveals Your Design When the Sweat Starts.

Matsui Phantom Clear is unlike any other ink in screen printing. It goes on clear. It dries invisible. You cannot see it, feel it, or detect it on the garment. But the moment that shirt gets wet – from sweat, rain, a splash of water, or a jump in the pool – the hidden design appears.

Here is how it works: Phantom Clear is a water-resistant formula. When you print it onto fabric and cure it, the ink creates an invisible barrier that repels moisture. When the garment is exposed to water, the unprinted areas of the fabric absorb moisture and darken. The areas printed with Phantom Clear resist that moisture and stay the original shirt color. The contrast between the darkened (wet) fabric and the dry (printed) areas reveals your hidden design. When the garment dries, the image disappears again – ready for the next reveal.

This is not a gimmick ink that washes out after a few cycles. Phantom Clear is a fully curable, production-grade water-based formula that is durable through multiple machine washings. It delivers the same ultra-soft hand feel and eco-friendly performance that Matsui is known for across its entire water-based ink lineup.

How Matsui Phantom Clear Works – The Science Behind the Magic:

Understanding the reveal mechanism is critical for choosing the right garments and setting customer expectations:

The key insight: Phantom Clear does not change color. The fabric around it does. The ink works by creating a water-resistant barrier that prevents moisture absorption in the printed area, while the surrounding unprinted fabric darkens naturally when wet. This means the effect works best on fabrics with high moisture contrast – garments that visibly change shade when they get wet.

Matsui Phantom Clear Disappearing Ink Key Features:

• Invisible When Dry, Visible When Wet: Prints completely clear and undetectable on the garment. The hidden design only appears when the fabric is exposed to moisture – perspiration, water, rain, or humidity.
• Water-Resistant Formula: Creates an invisible moisture barrier on the fabric. While unprinted areas absorb water and darken, the printed area repels moisture and stays the original shirt color, revealing the design through contrast.
• Repeatable Effect: The reveal works every time the garment gets wet. As the fabric dries, the design disappears again. This cycle repeats indefinitely through the life of the garment.
• Durable Through Multiple Washings: Fully curable water-based formula that holds up to machine washing. The water-resistant effect and invisible print remain intact wash after wash.
• Ultra-Soft Matte Finish: Produces the softest prints achievable in textile screen printing. The cured ink has no visible texture, no shine, and no detectable hand feel – the garment looks and feels completely unprinted.
• Ready to Print from the Container: Excellent printability with no viscosity modifications needed. Print through standard mesh sizes (110-200) for consistent, reliable results.
• Double Stroke for Maximum Effect: A double print stroke maximizes ink saturation and penetration into the fabric fibers, which strengthens the water-resistant barrier and produces a stronger reveal effect.
• Works on Colored Fabrics: Compatible with all colored fabrics that visibly darken when wet. Light athletic colors with high wet/dry contrast (heather gray, light blue, light green) deliver the strongest visual effect.
• Safe for Dry Cleaning and Ironing: Cured prints can be safely dry cleaned or ironed without damaging the invisible design or the water-resistant effect.
• PVC-Free and Eco-Certified: OEKO-TEX Standard 100 certified, CPSIA compliant, and HR4040 compliant. PVC-free formulation meets all major brand restricted substance lists (RSL). Non-toxic and environmentally safe.

Why Screen Printers Use Matsui Phantom Clear:

Phantom Clear opens up an entirely new product category that most screen printers have never offered to their customers: interactive apparel. Instead of printing a static design that looks the same every time someone puts the shirt on, Phantom Clear creates a dynamic experience – the design is hidden until the moment of activation.

This makes it one of the most compelling upsell products in a screen printer’s catalog. When you show a customer a shirt that reveals a hidden design when they sweat, the reaction is immediate. It is a “wow” moment that sells itself and commands premium pricing.

High-Value Market Applications:

• Gym and Fitness Brands: The number one use case. Workout shirts that reveal motivational messages, logos, or graphics as the wearer sweats. Gyms use these for member merchandise, challenge shirts, and branded giveaways that create social media moments.
• Water Sports and Outdoor Recreation: Surf, kayak, swimming, and water park apparel where getting wet is part of the experience. The shirt becomes part of the activity.
• Pool Parties and Summer Events: Custom party shirts, family reunion tees, or summer camp shirts where jumping in the pool reveals the hidden design. Especially popular for kids.
• Baptism and Church Events: Shirts worn during baptisms that reveal a message or scripture when submerged in water. A meaningful, memorable keepsake.
• Promotional and Brand Engagement: Interactive merchandise for product launches, festivals, or trade shows. Hidden QR codes, secret messages, or promotional codes that only appear when wet.
• Novelty and Gift Market: Birthday gifts, bachelor/bachelorette party shirts, and holiday gifts with hidden messages that create an interactive, shareable moment.
• Limited Edition and Streetwear Drops: Fashion-forward brands using Phantom Clear for limited runs that add an exclusive, interactive element to their designs.

Phantom Clear vs. Hydrochromic White – Which Matsui Disappearing Ink Do You Need?

Matsui offers two moisture-reactive specialty inks, and they work in opposite directions. Choosing the right one depends on the effect you want:

Pro Tip: Use both inks together for a two-stage reveal. Print a colored design, then overprint it with Hydrochromic White to hide it. When the garment gets wet, the Hydrochromic White disappears to reveal the color underneath, while Phantom Clear areas stay dry to create additional contrast. The combination creates layered, multi-stage interactive effects that no other printing method can achieve.

Best Garment Choices for Phantom Clear:

The reveal effect depends entirely on the fabric’s ability to visibly change shade when wet. Not all garments work equally well:

The Rule: Choose garments where the difference between the dry color and the wet color is dramatic. The greater the contrast, the stronger the reveal effect.

How to Print Matsui Phantom Clear:

Step 1 – Choose the Right Garment: Select a light-to-medium colored garment with high wet/dry contrast. Heather gray is the go-to. Test the garment first by wetting a section to see how much it darkens.

Step 2 – Prepare Your Screen: Use standard mesh sizes from 110 to 200. Lower mesh counts (110-156) deposit more ink for a stronger water-resistant barrier. Use a water/solvent-resistant emulsion (same as you would use for discharge or HSA inks).

Step 3 – Print with a Double Stroke: Flood the screen before printing. Use a double print stroke to maximize ink saturation and penetration into the fabric fibers. This is critical – the ink must fully penetrate absorbent fibers to create a strong water-resistant barrier. Flood the screen again after printing.

Step 4 – Flash Only If Needed: If printing Phantom Clear alongside another design (multi-color job), use a flash between colors. If printing Phantom Clear directly to fabric as a standalone design, no print-flash-print is necessary.

Step 5 – Cure: Cure at 320F (160C) with a dryer dwell time of 120 seconds (2 minutes). Adjust based on your dryer’s airflow. Use a conveyor dryer with forced air for best results.

Step 6 – Test the Effect: After curing, splash water on the printed area. The unprinted fabric should darken while the Phantom Clear area stays the original shirt color, revealing your design. Always test before committing to a production run.

Pro Tips for Best Results:

• Garment testing is everything. Before accepting a job, wet a sample of the chosen garment to see how much it darkens. If the wet/dry contrast is low, the reveal effect will be weak. Test first, show the customer, and set expectations.
• Lower mesh = stronger effect. Use 110-156 mesh for the heaviest ink deposit and strongest water-resistant barrier. Higher mesh counts (200+) deposit less ink and may produce a weaker reveal.
• Double stroke is not optional. Single stroke printing may not saturate the fibers enough to create a reliable water-resistant barrier. Always use a double print stroke for consistent results.
• Keep ink on the screen. Flood generously before and after each print. Phantom Clear is a water-based ink and will dry in the screen if left unattended.
• Bold graphics work best. Fine lines and small text will produce a subtle reveal that may be hard to see. Large logos, block text, and bold graphics create the most dramatic and visible moisture-activated effect.
• Sell the experience, not the ink. When pitching Phantom Clear to customers, show a video or live demo. The “wow factor” sells the job at premium pricing. Gyms, fitness influencers, and event planners will pay significantly more for interactive apparel.
• Combine with Hydrochromic White for layered effects. Print a standard color design first, then overprint with Hydrochromic White to conceal it. When wet, the white disappears to reveal the color underneath. Add Phantom Clear areas for additional dry-zone contrast. Multi-layer interactive prints command the highest prices.
• Use Retarder MG if needed. In dry environments, add 1-3% Retarder MG to extend open time during production.