If you have a printer with white ink, the software can create a layer of white ink between the printed area and the media.

Process

White management is at the preset level. The following parameters need to be configured for the White settings to appear:

1. When creating or editing a device, set the Custom Inkset with White undercoat ink:

   

2. In the preset's Main settings, you can choose a Color mode that includes white, like CMYKW. When selected, a White settings section will appear below, allowing you to customize how white is used:

   

White settings

Strategy

Select a Strategy for the white underlay:

• Color T-shirt:
  • Used for colored garments except for black.
  • This strategy creates a white layer under the color layer, except under the black color. It does not apply ink under transparent areas.
  • The density of the white ink applied depends on the density of the colors in the image: the less dense the inks, the less need for a white underlay. This way, white ink is saved.

• Black T-shirt:
  • Used for black garments only.
  • This strategy creates a white layer under the color layer, except under the black color. It does not apply ink under transparent areas.
  • The density of the white ink applied depends on the density of the colors in the image: the less dense the inks, the less need for a white underlay.
  • The black color of the garment is used for the black areas of the image. This strategy does not print black ink.
  • This way, white and black inks are saved.

• White T-shirt:
  • Used for white garments only.
  • This strategy creates a white layer under the color layer. It does not apply ink under transparent areas.
  • The density of the white ink applied depends on the transparency of the image: the more transparent it is, the less white ink is applied.
  • The density of the white ink applied also depends on the White amount value selected by the user: the higher the amount, the more white ink is applied.
  • This way, white ink acts as a way to make other inks stick to the garment.

Minimal/Maximal white

For Color and Black T-shirt strategies.

Adjust the minimum and maximum amount of white ink applied to the underlay. The values are in percent and are set to 0% and 100% by default.

They are often used as last-minute modifiers to improve adhesion and feel, based on visual and manual feedback from an already printed garment.

• The minimum white ink amount is often used when the garment requires a minimum amount of white to facilitate the adhesion of other inks.
• The maximum white ink amount is often used to achieve a better feel by reducing the total ink quantity.

White amount

Only for the White T-shirt strategy.

• Used for white T-shirts and transparency strategies for white ink generation.
• The amount is a percentage between 0 and 100.
• The white amount is applied in relation to the transparency values of the image to create white ink under the color layer: if an image has no transparency, the same amount of white ink is generated under the entire image.

White as transparency

The White as Transparency feature adds greater control over the white undercoat application when printing PDFs with spot colors.

When enabled, the software will treat white or low-color areas as transparent. This is particularly helpful when working with PDFs where white backgrounds or light areas should not receive white ink.

Spread (+) / Choke (-)

The white ink may occasionally bleed or absorb, leaving white lines surrounding the printed area or edges that appear less saturated. The solution is to spread or choke the white ink generation by a few millimeters to eliminate these effects.

Spread	Choke
Increases edges	Reduces edges

Smart choke

This setting enables or disables the automatic reduction (choking) of the white ink layer beneath colored areas.

• Enabled: Enabling this option removes white pixels if there is no other color on top of them. This helps prevent white ink from showing around the edges of colored areas due to slight misalignments during printing, avoiding unwanted white outlines or halos in the final output.
• Disabled: The white underlay remains the same size as the color layer, which may risk visible white edges if perfect alignment is not maintained.

Opacity reduction coefficient

For Color and Black T-shirt strategies.

Select a value from 1 to 10 to eliminate white halos created by small remaining drops in badly designed transparent files.