BioPak 521, the film manufactured from polylacticacid (PLA) has excellent quality features such as exceptional transparency and high surface gloss. The film is made of annually renewable
primary product starch and completely biodegradable into carbon dioxide and water.

PRODUCT FEATURES

Physical characteristics:	Environmental features:	Optical characteristics:	Special properties:
high stiffness	made of annually renewable resources	high-gloss face contributes to good print presentation	twistable with excellent deadfold
resistant to oil, fat and alcohol	completely biodegradable into water and CO2		low sealing temperature and high seal strength
high water vapour transmission rate			printable
			both sides sealable

PRINTING GUIDELINES

BioPak 521 can be converted by flexographic and rotogravure processes. A high, constant wettability is given by the film itself, even without corona treatment. This high wettability will not decrease with time.
Printing on BioPak 521 is recommended with nitrocellulosebased inks. Water-based inks are also suitable.

BioPak 521 is resistant to alcohol and water but is affected by ethyl-acetate. BioPak shows swelling if it comes into contact with ethyl-acetate short term and will dissolve if it is in longer contact.
Because of the heat sensitivity of BioPak 121, the drying temperature needs to be reduced to the lowest possible temperature. Opposed to this, the air flow to dry the inks needs to be increased.

Food safety and environmental statement The BioPak 521 food contact films are non-toxic and may be used in direct contact with all types of foodstuff. Their use for wrapping food for human consumption is permitted unconditionally, and they present no health or safety hazards when used for this purpose.
The films comply with the appropriate food-contact regulations of the EU Member States, the USA and most other countries throughout the world in which specific food-contact regulations are in force.

TRANSPORT & STORAGE

BioPak 521 is largely unaffected by climatic influences but should not be exposed in transport and storage to temperatures above 30°C or high humidity. It is therefore recommended to use air conditioned or temperature controlled containers for transportation.

Certified according to DIN EN ISO 9001:2000

Compliance with industrial health and safety standards:
These OPP films do not present any significant danger to health and safety in the workplace, provided they are used for the intended purpose in accordance with conventional practices and that health and safety regulations are observed. Relevant guidelines can be found in our safety information.

 

BioPak film	Gauge	Standard length (M)	4-times standard (M)
121	20 µm	3,800	15,200
121	30 µm	2,500	10,000
121	40 µm	1,900	7,600
Maximum reel outside diameter (mm):
Core diameter	Standard length	4-times standard
77 mm	approx. 330	approx. 640
152 mm	approx. 358	approx. 655