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  • HACCP

    Hazard Analysis and Critical Control Points, a preventive system designed to ensure food safety for consumers. A hygiene system with hazard analyses and defined requirements for employees and production for guaranteeing defined delivery standards. See also: BRC/IoP, IFS, ISO 22000 and DIN EN 15593. All standards are simultaneously valid, coincide in areas and have regional priorities.

  • Heat seal strength

    If films with face printing also receive printing in the seal area, the printing has to withstand the sealing temperature. The films must not stick to the sealing tools.

  • Heat sealing

    A method for welding films; used in packaging technology. See also: Welding, Sealing.

  • High frequency welding

    A method for welding films; used in packaging technology; the heat for the welding process is generated by a radio frequency field

  • High transparency

    Transparency (from the Latin trans for "beyond, through" and parere for "to show, to shine") is the ability of a material to allow electromagnetic waves to pass through. Colloquially, the term 'transparency' usually refers to electromagnetic radiation in the visible spectrum (light). In a figurative sense, high transparency means an absolutely clear view through a body or a substrate; this is only possible in films that are of a very high quality and completely scratch-free. Used as a subjective measure for very high-quality sales packaging.

  • Homopolymer

    Polymers built up by the repetition of a monomer.

  • Hot stamping

    Precursor to thermal transfer printing; effects can also be embossed.

  • Hot tack

    Heat seal strength, internationally used term for the strength of a heat-sealed seam while still hot.

  • Hot-wire welding

    A method for welding films used in packaging technology; films are simultaneously welded and separated with a heated wire. This is one of the separating seam welding methods (see: Separating seam welding).

  • Hygroscopic

    The property of retaining moisture from the surrounding environment (usually in the form of water vapour from humidity).