Application Of Pretreatment - Brother GTX-4 Instruction Manual

6-3-3. Application of pretreatment

In order for the pretreated portions to be printed with inks, apply the pretreatment evenly to a wider area than the print
range.
<CAUTION>

Fully take care of the air ventilation when you work on operation that generates mist such as spray application.

Be sure to wear a pair of plastic gloves, a mask and protective glasses (or goggles) designed to shield against liquid splash
during the work operation.

For information on handling of the pretreatment, see the Material Safety Data Sheet issued by us.
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<IMPORTANT>

Some T-shirts may leave distinct imprints of the pretreatment after it is fixated. Wash away any imprint of the pretreatment with
water, if any.
Also, some T-shirts may be discolored by the pretreatment and cannot be restored to the original color even if they are washed.
When performing the printing for the first time, do that after applying the agent to an unnoticeable area on trial.

If you are using an electric spray to apply the pretreatment, perform the work at a place as far as possible from the printer.
Otherwise, it may cause failure of print heads.
Reference guide for amount of coating of pretreatment
Determine a coating area and amount of coating according to a platen size. When your coating area differs from what
are shown in the table below, calculate the amount of coating based on the area ratio.
<IMPORTANT>

Depending on the type of fabric, the print quality cannot be guaranteed with the amount of coating of pretreatment shown below.
It is therefore necessary to conduct sufficient print tests and adjust the amount of coating.

If the amount of coating of pretreatment is too small, imprints of the pretreatment may become less noticeable after it is fixated,
whereas color reproduction of the white ink and color inks on the white ink will deteriorate.

Meanwhile, if the amount of coating of pretreatment is too large, imprints of the pretreatment may become noticeable, the printed
surface may be cracked or discoloring may occur after washing.
Platen Size
16 x 21
16 x 18
14 x 16
10 x 12
7 x 8
Letter size/A4-size
Pocket size
(3.9 in. x 3.9 in. (10 cm x 10 cm))
Amount of coating of pretreatment
45 g (1.6 oz)
39 g (1.4 oz)
30 g (1.1 oz)
16 g (0.6 oz)
8 g (0.3 oz)
15 g (0.5 oz)
3 g (0.1 oz)
135
Basic printing procedures