In order to be familiar with poly bags and/or Can liners, it is important to know some key words in the industry. Please use the following as a tool from Hanpak to help identify some of the packaging terminology behind poly bags and Trash Can liners:
Can Liner
Term used for garbage, trash or waste bags. Used in industrial, institutional and medical applications. These bin liners tear off rolls for easy use in many applications such as bin liners, gaylord liners, pallet top covers, and dust covers
Can liners come in standard colors: clear, black, white, gray, red, blue and yellow. (Other colors available.)
Food and Utility Bags
Small clear bags designed to hold a variety of small objects (e.g., bread, poultry, vegetables, etc.), food bags are FDA approved, they make great ways for storing and keeping food fresh.
Film Strength
Refers to the physical strength of the can liner. Some resins have a higher film strength than others. Our can liners are made from highest quality resins, giving them the highest quality film in the market place.
Dart Drop Test
ASTM test used to determine the resistance of a bag to local failure or puncturing of the film.
Elmendorf Tear Test
ASTM test used to measure the resistance to tearing.
Wet Load Capacity
Measurement of how much wet weight a can liner will hold.
Dry Load Capacity
Measurement of how much dry weight a can liner will hold.
Term used to describe thickness.
LDPE and LLDPE can liners are measured by mil thickness and HDPE can liners are measured by micron thickness.
(One thousandths of an inch) Term used in the measurement of LDPE and LLDPE can liners. One mil is .001”. Can liners range between .35 to 4.0 mil.
Term used in the measurement of HMW-HD can liners. 25.4 microns equals .001”. 1,000 microns (M) = 1mm. HDPE can liners are 8to 24 microns.
Short term for Polyethylene (PE) resin.
The three types of PE resins are LDPE, LLDPE and HDPE . Other plastic resins include vinyl, polypropylene, styrene and nylon.
(Low Density Polyethylene) This resin was used with older can liner technology. Resin has good clarity but week film strength. Today it is used primarily for Food and Utility bags.
(Linear Low Density Polyethylene) This is the primary type of resin used in modern can liner manufacturing technology. Bags made from LLDPE film provide excellent combination of film strength, puncture resistance and tear resistance.
( High Density Polyethylene) Bags made from HMW-HDPE resin provide excellent film strength and puncture resistance, but less tear resistance than LLDPE.
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