I've just done some moulding with spread tow cloth and I'm getting odd crease marks on the tows whcih look like it needs ironing.  Having checked back on the roll the marks are there in the dry cloth.  Any ideas on how I can get rid of them?  Really hard to photograph but here's my best go.

To me that looks like a shaddow  marking of the backing that would originally have been on the UD sheet before manufacture.  Many UD type sheets have a fine supporting net of thread either within the UD or on the back of it. The ones ive seen look just like that criss cross pattern.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant