clipped from: www.digitalscrapbookplace.com   

Tutorial: Fast stripe patterns in Photoshop

1)      Open a new 200px x 200px at 72dpi (you are not going to print it!) transparent document

Pick the 2 colours which you wish to use as background and foreground colours – for my example I’m using purple & bright pink.
3)      Press G to select the Gradient Tool, Foreground to Background, and in the options bar select the Linear Gradient.

Now, holding down the Shift Key (to keep to a straight line, pull your gradient from left to right.(this will give you horizontal stripes, for vertical stripe pattern, holding down the shift key, pull your gradient from top to bottom & carry on from 5)

5)      Now select Filter > Distort > Wave and make sure your settings are as in the illustration:

·        Number of Generators not important, mine is 999

·        Wavelength                              35 and 35 (Tip: set the Maximum one first)

·        Amplitude:                                Unimportant

·        Scale:                                       Unimportant

·        Type:                                        Square is checked

·        Undefined Areas:                      Repeat Edge Pixels checked

Edit > Define pattern