Application and use

The specially developed surface of HERMAlaser sheet 50 offers an excellent printability and toner keying with all xerographic printing processes. Label sheets are suitable for large laser printers, desktop l aser printers, copiers and a great number of inkjet printers.

We recommend a production from small reels 217 mm wide or 434 mm wide for two-wide production (original edges of the semi-finished material should not be used). A possible curvature in machine direction (especially near the cores) may be adjusted by a "decurl bar" in the press. Water-based inks may negatively influence stay flat characteristics of the paper. We therefore recommend no use of water-based inks for printing large areas.

The pulp for this paper is from FSC® certified forests and other controlled sources.

The PSA 63Mps is characterized by an extraordinary high tack. Even on critical surfaces tack level is very high. 63Mps suits therefore outstandingly for high-speed dispensing, also on in cool conditions. In combination with thin face materials it demonstrates very good mandrel-hold and is therefore suitable for labelling of items with small diameter. Once labelled 63Mps is highly waterproof. Typical areas of application for this coated kraft liner are computer labels for laser printers (continuous or sheet stock), which require higher stiffness.

Processing

Excellent die-cutting characteristics on all customary machines. As part of a self-adhesive compound HERMA KW (527) offers good die-cutting characteristics with all customary flatbed and rotary label cutters.

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 paper is approved according to the BfR Recommendation XXXVI. This paper quality according to the sample material submitted may be used safely for food packaging and may stand in direct contact to dry and fatty foodstuffs (ISEGA Research and Development Institute, Aschaffenburg).

All ingredients of adhesive 63Mps comply with recommendation BfR XIV or FDA 21 CFR 175.105 (Adhesives).

The pressure-sensitive adhesive 63Mps 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 2 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 14.12.2025).

Furthermore the self-adhesive labels with the adhesive 63Mps can be used for labelling of blood bags (Expert's Opinion from December 16, 2021).

The paper complies with recommendation BfR XXXVI.