Application and use

HERMAtherm PP essential (827) combines the characteristics of thermal papers with the durability of PP films.

Printing speeds of up to 150 mm/s are possible in direct thermal printing.

Printing with traditional printing methods like UV flexo is also possible. However ink keying of the preprint in wet condition may be limited. The inks should be suitable for printing thermal films, consulting of ink supplier is recommended.

Web temperature during curing should not exceed 50 °C in order to prevent an early reaction of the thermo reactive layer.

It is generally recommended to carry out tests in advance under customer- and application-specific conditions.

The thermal print of HERMAtherm PP essential (827) features a high water resistance and a limited oil resistance. HERMAtherm PP essential (827) does not contain BPA, BPB  and BPS. It is suitable for applications where high durability is required such as logistic labels, luggage tags or the labelling of food packaging. 

The adhesive 62Gpt shows a very high tack even on cold surfaces down to -10 °C. Due to the high initial tack even on moist surfaces 62Gpt is particularly suited for labelling polar and nonpolar surfaces such as plastic containers, film wrappings and other packaging materials. The 62Gpt suits especially well for fast running dispensers, in which the initial tack has to be built up extremely quickly as f.ex. when the labels are blown on the substrate.Once labelled the adhesive is highly waterproof.

The supercalendered glassine is perfectly suited for assignment in labelling machines equipped with optical or mechanical scanners.

Processing

Excellent die-cutting characteristics on all customary machines.
As part of a self-adhesive compound HERMA PW (520) offers excellent die-cutting characteristics with all customary flatbed and rotary die-cutting tools.

Storage conditions

Storing at a temperature of 20 ± 5 °C, a relative humidity of 45 ± 5 % and a dark storage is recommended. Moisture, heat and direct sunlight have to be avoided.

The shelf life is two years from date of production.

Regulations concerning contact with food

The basefilm of HERMAtherm PP plus (827) is in compliance with Commission Regulations (EC) no. 1935/2004 and (EU) no. 10/2011 as amended on plastics and articles intended to come into contact with food.

The thermosensitive top side can be used for indirect food contact (dry/fatty/aquageous), while the reverse side is suitable for direct contact with foodstuffs. Food should be washed or peeled before consumption.

All ingredients of adhesive 62Gpt comply with recommendation BfR XIV or FDA 21 CFR 175.105 (Adhesives).

The pressure-sensitive adhesive 62Gpt can be safely used for the back coating of labels for the labelling of foodstuffs for storage at room temperature and below. It may be used in direct contact with dry, moist and fatty foodstuffs that can be assigned a correction factor of at least 3 in accordance with Regulation (EU) No. 10/2011. Furthermore, the adhesive may be used for laminating various materials. In this case, cut edge contact with food is harmless as far as the above mentioned adhesive is concerned. It must be ensured that the relevant migration limits are complied with by the laminated packaging (Declaration of no objection valid until 25.09.2027).

The paper complies with recommendation BfR XXXVI.