Lauj tshib (Nias los ntawm pob) Hlaws cov ntawv ci yog ib hom tshuaj ntim ntim siv rau cov ntim ntawm cov ntaub ntawv ntawm qhov ncauj, xws li ntsiav tshuaj thiab tsiav tshuaj. It consists of multiple layers that serve different purposes. The typical structure of Ptt brister ntawv nyiaj includes:

Protective Layer: The topmost layer of the foil is a protective layer, often made of polyester (PET). It provides protection against external factors such as moisture, teeb, thiab oxygen.

Printing Ink: A layer of printing ink may be applied on top of the protective layer. It can contain important information such as product name, noj tshuaj hov ntau, thiab cov khoom lag luam piav qhia.

Txhuas Ntawv Nyiaj Nyiaj Txheej: The aluminum foil layer is the core component of PTP blister foil. It provides excellent barrier properties, effectively protecting the medication from moisture, teeb, roj, thiab cov paug. Aluminum foil is typically around 20-30 Micrms Tuab.

Thaum Tshav Kub Kub Lacquer: The aluminum foil layer is coated with a heat seal lacquer on the inner side. This lacquer allows the foil to be heat-sealed to the blister packaging during the packaging process. It ensures the integrity and tamper-evident properties of the blister pack.

PVC los yog PVDC Daim tawv: Hauv qee kis, a layer of polyvinyl chloride (PVC) or polyvinylidene chloride (PVDC) may be present on the bottom side of the aluminum foil. PVC or PVDC provides additional barrier properties and enhances the stability of the packaged medication.

It’s important to note that the specific structure of PTP blister foil can vary depending on the manufacturer, cov khoom xav tau, and regional regulations. Different combinations of materials may be used to achieve the desired barrier properties, luam tau, thiab yooj yim ntawm kev siv.