I would like to know if it is possible to screen-print images on t-shirts that are not only on the chest or back, but distributed constantly up to the sleeves.
clear in silkscreen We cannot obtain the effect you mention, because the t-shirt seams prevent the lines from being reproduced without being irregular or choppy.
The only system to achieve this effect is to print the piece of fabric before making it local screen printing.
But in this case, close attention must also be paid to the cutting of the pieces, so that the lines coincide after sewing.
On the other hand, it is possible to obtain larger prints in some areas of the t-shirt, where there are no seams.
To do this, a printing base of the appropriate width is required, where the entire area of the t-shirt that must be printed can be extended.