Substrate processing apparatus having pressed together supply rolls

A substrate processing apparatus for processing a selected substrate, said apparatus comprising:

• a frame;
• a first supply roll rotatably mounted to said frame, said first supply roll comprising a first supply substrate having a first surface and a second surface, said first surface of said first supply substrate having a layer of pressure-sensitive adhesive disposed thereon, said first supply substrate being wound about said first supply roll such that said first surface thereof and said adhesive layer face radially outward with respect to said first supply roll;
• a second supply roll rotatably mounted to said frame, said second supply roll comprising a second supply substrate having a first surface and a second surface, said second supply substrate being wound about said second supply roll such that said first surface thereof faces radially outward with respect to said second supply roll;
• said first and second supply rolls being relatively movable toward one another to engage said first surfaces of said first and second supply substrates with one another;
• biasing structure biasing said first and second supply rolls towards one another such that said first surfaces of said first and second supply substrates are pressed into engagement with one another to enable performance of a processing operation wherein (a) the selected substrate is advanced in a feeding direction between said first and second supply rolls so that the pressed engagement of said supply rolls presses the first surfaces of said first and second supply substrates against opposing sides of the selected substrate so as to cause said adhesive to bond to said selected substrate, and (b) the portions of said first and second supply substrates pressed against said selected substrate are unwound from said first and second supply rolls and advanced together with said selected substrate,
• said biasing structure continuing to bias said first and second supply rolls towards one another as said first and second supply substrates are depleted from said first and second supply rolls to thereby maintain the pressed engagement of said supply rolls.