Permeability of Snack Packaging and Shelf life
Unfortunately many types of packaging allow this moisture to permeate back in – often through the material of the packaging rather than the joints or seals. Not only does this reduce the snack's crispness but the moisture accelerates biochemical changes such as oxidative rancidity. A low water vapour permeability of the package is, thus, usually the single most critical requirement.
Packaging also needs to be innovative to attract customers – but it must also prevent products from drying-out - which also increases the snack's shelf life.
Labthink offer the equipment to help you measure and quality control the permeability. We also have a fast, professional and economical laboratory / QC based testing service for the snack food and confectionery industries to determine the critical permeability of products and their coatings and packaging.
Our equipment can test the permeability of a huge range of products and packages – from metalized foil packages and sachets through to sugar coatings and barrier materials.
It is worth taking a very brief look at some of the widely used packaging materials:-
Co-extruded Oriented Polypropylene (COPP): Is a good moisture barrier, gas barrier properties can be improved by coating it with PVC. It can be used when gas flow is desired for MAP (Modified Atmosphere Packaging).
Ethylene Vinyl Acetate (EVA): Has high flexibility, and high permeability to water vapour and gases with excellent oil and grease resistance.
Ethylene Vinyl Acetate, has superior sealing qualities and blended polyethylene can make a strong peelable seal.
Ethylene Vinyl Alcohol (EVOH): A moisture sensitive, very high gas-barrier material, again often sandwiched.
High Density Polyethylene: with its higher softening point (than LDPE) it provides a physical barrier buts not suitable as a thermoformable sealant layer, clarity is poor.
High-impact Polystyrene: Opaque, thermoformable, and a moderately low gas-barrier.
Inomers: Are similar to polyethylene but have a high tack and can seal through a level of surface contamination.
Linear Low-Density Polyethylene (LLDPE): This has greater impact and puncture strength, tear resistance, elongation and resistance to cracking. It is commonly used for MAP.
Low Density Polyethylene: an extremely versatile material with low water vapour permeability but high gas permeability.
PET: High clarity that forms and thermoforms well.
Polypropylene (PP) and Oriented Polypropylene (OPP): Gives a high water vapour and gas barrier and has excellent grease resistance.
Polystyrene: A clear thermoplastic with a high tensile strength. It is brittle and a poor barrier to moisture vapour and gases.
Polyvinylidene Chloride (PVDC): Used for MAP as a gas-barrier coating, often sandwiched between other materials. It has outstanding barrier properties with low permeability to water vapour and gases.
Using the most appropriate materials can dramatically extend the life of snacks and preserve flavour, texture quality. However it depend not just the materials you use, but on the way you make the seals – which can vary even on the same equipment on a daily basis. The best solution is to test the materials, the packaging and the finished products.
Water Vapor Permeability Tester
Heat Seal Tester
Package Integrity Tester
Oxygen Permeability Tester
About Labthink Instruments Co., Ltd:
Labthink Instruments Co., Ltd is one leading supplier of packaging testing instruments, which is headquartered in Jinan, China and operated in Boston, U.S.A.
Labthink is a multinational technology company that is devoted to helping customers succeed, employees grow and brands gain respect. The headquarters of Labthink is in Jinan, China; its international headquarters is in Boston, USA; and its SAC IT Center is in Hong Kong, China. The company has more than 50 international distributors and more than 30 international service providers.
Labthink International, Inc.
200 River's Edge Drive, Medford, MA, 02155, USA
Phone: (+1) 617-830-2190
FAX: (+1) 781-219-3638
This release was published on openPR.
Permanent link to this press release:
Please set a link in the press area of your homepage to this press release on openPR. openPR disclaims liability for any content contained in this release.
You can edit or delete your press release Permeability of Snack Packaging and Shelf life here
News-ID: 448200 • Views: 798
More Releases from Labthink International, Inc.
How to test the seal performance of black and white PE packaging for liquid milk …
Source: Labthink Instruments Co., Ltd Liquid milk is an important part of many people’s diet. Since a large amount of fat and protein are contained in milk, it is easily oxidized, as a result, the quality of the milk can be compromised within its shelf life. Therefore the packaging materials used for liquid milk are required to have sufficient oxygen barrier property. Moreover, the seal performance of the packaging should meet
Oxygen Barrier Property Test of Plastic Bottles for Dairy Drinks
Source: Labthink Instruments Co., Ltd Dairy drinks are very common consumer products in people’s daily life. Peanut milk, walnut milk and many other beverage containing milk are very popular. Dairy milk is mainly made of fresh milk, which contains a large amount of protein, vitamin and fat. Those nutrients are liable to be oxidized, which should be kept away from light. The packaging materials used for dairy drinks should have sufficient
Heat Seal Strength Test of Composite Packaging for Biscuit
Biscuits are commonly eaten as snack food and are in general, made with wheat flour or oats, and sweetened with sugar or honey. Varieties may contain chocolate, fruit, jam, nuts, ginger and other ingredients. The sealing edges of the packaging bags for biscuit should have proper heat seal strength. To be specific, the seal strength cannot be too high (even higher than the compounding strength), otherwise much difficulties will be caused
How to test the puncture resistance of medical rubber closures?
Source: Labthink Instruments Co., Ltd Rubber closures are very important packaging materials that are usually used in penicillin bottle, syringe, vacutainer blood collection tube and other medical packaging and medical apparatus. The most common materials used for rubber closures include natural rubber and butyl rubber, etc. Since there are differentmolecular structure, composition and manufacturing process of rubber closures, the safety and corrosion resistance may be distinct from each other. Besides, the
More Releases for Tester
From the tester community for the tester community
Moehrendorf, 9 October 2018 – Which enthralling and forward-looking topic in the field of software quality assurance and testing has the capability to mesmerize 500 experts for two days? This question may now be answered by the attendees of this year’s Software-QS-Tag as well as of those from the years before. Even though the conference 2018 takes place in only a few days, the interactive brainstorming for the focal
Global Hardness Testers Market By Product Type - Rockwell Hardness Tester, Vicke …
Researchmoz added Most up-to-date research on "Global Hardness Testers Market By Product Type - Rockwell Hardness Tester, Vickers Hardness Tester and Brinell Hardness Tester" to its huge collection of research reports. This report mainly introduces volume and value market share by players, by regions, by product type, by consumers and also their price change details. As a Detailed Analysis report, it covers all details inside analysis and opinion in Hardness Testers
IOP Tester for Ethernet ECUs
RUETZ SYSTEM SOLUTIONS Tests ECUs for Interoperability RUETZ SYSTEM SOLUTIONS – experts for automotive data communications - provides an interoperability test platform for Automotive Ethernet. This IOP tester operates within the framework of compliance tests for Automotive Ethernet. The test platform constitutes a component of the test set-up for Open Alliance Layer 1 interoperability tests for ECUs. The IOP tester allows the verification of ECUs for interoperability with other ECUs
BMW supports Automotive Software Tester
With Dr. Marc Russ out of BMW’s quality management the Automotive Tester Board has a new, competent member. Dr. Russ will represent the OEMs view in the board and will help to develop the scheme with his expert knowledge. By that way the gasq Automotive Software Tester certification can further address the branch’s need and help to improve the quality of software testing in the field of automotive. Dr. Hendrik Dettmering, president
New Cartridge Bubble Point Tester from PMI
PMI is proud to announce its newest instrument - the Cartridge Bubble Point Tester. This instrument brings a solution to many of the problems faced by industry personnel when testing their filter cartridge media. The versatility, ease of use, and safety aspects of this machine make it a valuable tool in the filtration media industry, and has been built with the end user in mind. Some of the
New handheld tester for VDSL
Ebermannstadt, Germany – September 12, 2007. Vierling will present its new VIT-V2 VDSL2 tester for the first time ever during the Vierling Autumn Fair from September 19-20, 2007. This handheld tester is used by service technicians to detect errors and configuration problems on VDSL lines. A laptop can be connected to read out important connection parameters. Using spectrum analysis software that will be available starting in December 2007, the problems