Pinhole Assessment | Plastic Testing Other Properties - Smithers
Smithers can locate pinholes in flexible films using a range of vacuum, gas detection, optical, porosity and dye penetration techniques to corresponding standards. Pinholes in packaging …
When polymer layers cover the pinhole, one can compute the amount of moisture and oxygen coming through the pinhole, knowing the area of the foil pinhole and the transmission …
A robust algorithm for detecting pinholes in transparent plastic films ...
1993年8月1日 · Pinholes appear as white blobs with a very dark boundary in the microscopic images of transparent plastic films. The microscopic image is first mapped into three different …
How to Beat the Odds: Avoid Packaging Pinholes
2022年2月12日 · Packaging engineers are familiar with this common packaging failure: the dreaded pinhole. Having been through it myself as a medical device packaging engineer—and …
A robust algorithm for detecting pinholes in transparent plastic films ...
1993年8月1日 · A computer vision based technique which automatically detects pinholes in microscopic images of transparent plastic films and also provides accurate and consistent …
Influence of artificial pinholes in aluminium foils and plastic films on water vapour and oxygen permeation was determined in this study. Results show clear correlation between the size and …
Leak detection of micro pinholes | LeakTEC - Tantec
This fully automatic test is capable of detecting pin holes even smaller than 3 microns by introducing an electrical potential between a detecting electrode and an electrical ground, (i.e. …
Pinhole Effect and Formation of Microplastics on PVC, PP and PET ...
2024年7月19日 · The pinhole effect, the creation of openings in the polymer film, depends on the frequency of pulsed electrical microdischarges at the same location, heat intensity, pressure at …
Plastics — Film and sheeting — Guidance on the testing of ... - ISO
This International Standard has been prepared to provide guidance in the testing of plastic films for producers and users. Although there are existing standards that provide this guidance for a …
Flex Resistance | Plastic Testing Physical Properties - Smithers
The flex resistance or flex durability of a plastic film is a measure of its toughness, specifically its resistance to pinholing when subjected to flexing abuse. A cylinder of the film is repeatedly …