{"id":4904,"date":"2026-07-28T21:40:31","date_gmt":"2026-07-28T21:40:31","guid":{"rendered":"https:\/\/bestypack.com\/blog\/pre-stretch-film-guide-features-and-applications\/"},"modified":"2026-07-29T15:26:36","modified_gmt":"2026-07-29T15:26:36","slug":"eigenschaften-und-anwendungen-der-vorstreckfolienfuhrung","status":"publish","type":"post","link":"https:\/\/bestypack.com\/de\/blog\/pre-stretch-film-guide-features-and-applications\/","title":{"rendered":"Pre-Stretch-Folienf\u00fchrung: Eigenschaften und Anwendungen"},"content":{"rendered":"

Pre-stretch film is stretch<\/strong> wrap that has been elongated before it reaches the load, either during roll production or inside a powered stretch-wrapper carriage. The approach can reduce the force needed at application and make film delivery more repeatable, but it does not guarantee lower cost or better load stability<\/strong> by itself. Buyers should match the film and application method to the pallet, distribution hazards, equipment, and acceptance tests before changing a wrap specification.<\/p>\n\n\n

Was ist Pre-Stretch-Folie?<\/h2>\n\n\n

For polymer background, consult<\/strong> the NIH PubChem \u00dcberblick \u00fcber Polyethylen<\/a> bevor Sie Angaben zu fertigen Folien vergleichen.<\/p>\n\n\n\n

\u201cPre-stretch\u201d describes when elongation<\/strong> occurs, not a complete Materialspezifikation<\/strong>. The term is commonly used for two different systems: a factory pre-stretched hand roll and a machine process that stretches film immediately before it reaches the pallet. Confusing them can lead to the wrong roll format, equipment setting, or performance expectation.<\/p>\n\n\n

Werkseitig vorgedehnte Handfolie<\/h3>\n\n\n

Werkseitig vorgedehnte Handfolie<\/strong> is elongated under controlled conditions and then rewound onto a roll. Because much of the elongation has already occurred, an operator normally needs less pulling force to dispense and apply it than is needed to stretch a conventional hand film at the pallet.<\/p>\n\n\n

\"Lagerarbeiter,
Konzeptabbildung einer werkseitig vorgedehnten Handfolie, die in einem allgemeinen Lager angewendet wird.<\/figcaption><\/figure>\n\n\n

The label does not<\/strong> identify the polymer grade, layer structure, supplied thickness, tolerance, cling arrangement, or remaining stretch. Those details are specific to the supplier and grade. A purchasing specification should therefore record the film identity and the thickness after factory stretching, rather than relying on a conversion from the film\u2019s original gauge.<\/p>\n\n\n

Maschinelle Vordehnung<\/h3>\n\n\n

Machine pre-stretch is an<\/strong> application process. In a powered pre-stretch carriage, the film passes between rollers operating at different surface speeds. The speed differential elongates the film before controlled film force is applied to the load. The carriage ratio, film feed, load rotation, and secondary stretch at the pallet all influence the final application.<\/p>\n\n\n

\"Generischer
Konzeptabbildung eines motorisierten Vordehnungswagens; es handelt sich nicht um Ausr\u00fcstungs- oder Testnachweise.<\/figcaption><\/figure>\n\n\n

A machine pre-stretch setting is not interchangeable with a factory pre-stretched hand roll. The roll dimensions<\/strong>, film properties, carriage design, and operating recipe must be compatible. A nominal pre-stretch percentage also does not describe the complete wrap result.<\/p>\n\n\n

Hauptmerkmale von Pre-Stretch-Folie<\/h2>\n\n\n

Pre-Stretch-Produkte und -Systeme werden aufgrund einer Kombination von Handhabungs- und Prozesseigenschaften ausgew\u00e4hlt. Jedes Merkmal sollte f\u00fcr die vorgeschlagene Qualit\u00e4t und Anwendung \u00fcberpr\u00fcft werden:<\/p>\n\n\n