● WHITE UNDERBASE — DTF · DTG, 100% OFFLINE

White ink that never
fringes or flakes.

Vecspine builds the white underbase mask from your traced vector — solid white for maximum vibrancy or halftone white for a soft hand. Shrink the mask with a choke, or expand it outward to create a sticker-style outline border. 1-bit TIFF, PNG preview and PDF, offline.

✓ Solid white mask ✓ Halftone white (soft hand) ✓ Choke (shrink in) ✓ Outline (expand out) ✓ 300/600/1200 DPI ✓ 100% offline
🎽
DTF·DTG
White ink ready
🌗
2
Mask styles
📐
Edge
Choke & Outline
🖨️
1-bit
TIFF white mask
NO UNDERBASE
UNDERBASE · CHOKE / OUTLINE
See it in motion

Underbase guides.

▶ DTF 01 — UNDERBASEstreaming from YouTube iNvNs_TKrc4
GUIDE 01▶ ~60 s

Solid white in one click

Trace, open the White Underbase dialog, pick solid white and export the 1-bit TIFF mask plus PNG preview.

▶ DTF 02 — CHOKEadd videos/dtf-02-choke.mp4 — or paste a YouTube URL into data-media
GUIDE 02▶ ~60 s

Dial the choke

Compare 0 mm vs 0.2 mm choke side by side and see how the white halo disappears after pressing.

▶ DTF 03 — SOFT HANDadd videos/dtf-03-soft-hand.mp4 — or paste a YouTube URL into data-media
GUIDE 03▶ ~60 s

Halftone white for soft hand

Switch to halftone white, pick LPI and dot shape, and export a screened underbase that keeps garments soft.

01 / 03
White underbase engine

The white layer, done right.

The underbase is rendered from your traced vector at output DPI — crisp edges, precise edge control, and your choice of solid or screened white.

🎽

Solid White Mask

Full-coverage white underbase for maximum opacity and color vibrancy on dark garments — the DTF default.

🌗

Halftone White (Soft Hand)

Screened white at 25–200 LPI lays down less ink for a softer feel — ideal when a heavy white flood would print stiff.

📐

Edge Control: Choke & Outline

Shrink the mask inward (choke) so white never peeks out, or expand it outward (outline) to create a 1–5 mm sticker-style white keyline border.

🏷️

Sticker-Style Halftone

Combine a halftone center with an expanded outline to get a soft-hand screened middle surrounded by a solid white contour ring.

🎯

Vector-Derived Mask

The mask is rendered from the traced vector at 300/600/1200 DPI, so edges stay crisp at any size — never a blurred raster copy.

🎞️

1-Bit TIFF

Uncompressed 1-bit white-mask TIFF (BlackIsZero) drops straight into RIP and print pipelines.

🖼️

PNG Preview

A quick visual proof of the underbase + artwork composite so you can check choke and coverage before printing.

🔒

Offline & Private

The underbase is generated entirely on your machine. Unreleased client artwork never leaves your computer.

Workflow

Trace to underbase in three steps.

Trace or import

Trace a raster or import vector artwork. Vecspine extracts the color layers the underbase will sit beneath.

Pick mask & edge

Choose solid or halftone white. Set your edge mode: Exact, Choke (shrink in), or Outline (expand out for a border), then pick your DPI.

Export

Write the 1-bit TIFF white mask, a PNG preview and a PDF proof — named after your artwork automatically.

Reference

Which edge mode for which job?

Starting points — always confirm with your press, garment and RIP, but these are safe defaults.

JobMask / edgeNotes
DTF standardSolid · Choke 0.1–0.2 mmSlight shrink, no white halo after pressing
DTG dark garmentsSolid · Choke 0.2–0.3 mmHeavier choke for stretchy fabrics
Soft-hand teesHalftone · 45–55 LPILess ink, softer feel, still opaque enough
Sticker / Contour borderSolid or Halftone · Outline 1–3 mmExpands the white mask outward for a die-cut sticker look
Heavy white floodSolid · Exact (0 mm)Full coverage when color sits on black
FAQ

Underbase questions, answered.

What is a white underbase?

A white ink layer printed beneath the CMYK image so colors stay vivid on dark garments. Vecspine generates the white mask from your traced vector, not from a flattened raster.

What does the choke do?

Choke shrinks the white mask inward (0–1 mm) so the white never peeks out past the color layer after pressing. 0.1–0.3 mm is typical for DTF and DTG.

Can I add a sticker-style outline border?

Yes. The Edge mode lets you expand the white mask outward (1–5 mm) to create a solid white keyline or contour border. When combined with a halftone mask, you get a solid white outline ring around a soft-hand screened center — perfect for sticker-style DTF prints.

Solid white or halftone white?

Solid white gives maximum opacity and color vibrancy. Halftone white (25–200 LPI) lays down less ink for a softer hand on garments — ideal when a heavy white flood would feel stiff.

What files does it export?

A 1-bit TIFF white mask for RIP and print pipelines, a PNG preview for quick visual proofing, and a PDF proof page. Files are named after your artwork automatically.

Does the mask match my artwork edges?

Yes. The mask is rendered from the traced vector at your chosen output DPI (300/600/1200), so edges stay crisp at any size; the choke or outline is applied mathematically after rendering.

Does it work offline?

Yes. The underbase is generated entirely on your machine. Client artwork never leaves your computer.

White ink without the guesswork.

Solid or halftone underbase with precision edge control — offline, in one click.