Hot Stamping Foil

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Quality Characteristics

Appearance

grade Item		A Class	Qualified	Off-grade
Appearance	Coating	Bottom and surface color uniform. Coating thickness reaches parameters required	Bottom and surface color does not uniform. Coating thickness varies parameters required ≥10%	Obvious un-uniformed
	Joint	≤1pc/120m	≤4pc/120m	≤4pc
	Pinhole	≤4pc/mseen	≤6pc/m2seen	≤6pc/m
	yellow spot	Not allowed	A little bit allowed but not affect stamping.	Stamping problem.
	Damage	No fold, scratch, crush allowed.	≤10cm/1m long.	A lot

Note: 1) Pinhole means aluminum particles sputtered to the film during vaccum metalisation process. Such defects refers to the visible hole size 1.0 mm maximum.

2) Yellow spot means that the film becomes slightly yellow.

3) No wrinkle is allowed in the joint of each interface, 0.64m deep of adhesive tape required.

4) Rewinding hardness of the roll must keep consistent. Mark can be seen when pressing by hand.

5) Backing release paper colour must be the same. Yellow and white must be stored separately.  Attention should be paid to the yellow back colour. No significant deviation is observed with eye.

The quanlity is got approval.

Size

Size	Nominate	Allowance
Width	0.64M	A class(+/-2mm)	Qualified((+/-5mm)
Length	120M	A class((+/-0.5m)	Qualified(±1.2m)

Hot Stamping Foil