cold Water Soluble Film 25um,30um,35um,40um, 100m-500m/roll cold Water Soluble Film Features:1) Nontoxic, no formaldehyde, environmentally friendly2).use for lace embroidery backing3).25um,30um,35um,40um,4).100m-500m/rollwe're professional on producing "cold Water Soluble Film " cold Water Soluble Film