1
From color to greyscale
First, make sure your document is the right size (cm) before performing any for the steps.
In Photoshop go to Images —> Mode —> Grayscale
2
From greyscale to bitmap
Go to Mode —> Bitmap
3
Bitmap setup
Set the Output to 150
4
Screenprint for fabric
For fabric the Frequency and Angle should be 16
Hit OK when your done and your almost ready
5
Export to pdf
Go to Save As and choose to save it as a Photoshop PDF file.
In the export file setting choose the Output —> Color Conversion should be Convert to Destination and Destination should be Adobe RGB (1998) and hit save .-)
6
ready to print
Now you are ready to send it to the print
7
Bitmap with threshold
Go to Images —> Threshold
8
Threshold
In the Threshold setting you can move the small white arrow or insert a number to find something that suits you