The waterproof breathable membrane is one new type of high polymer waterproof material, which is featured with ultra-resistance to high temperature, low temperature, corrosion, and aging. Today the waterproof breathable membrane has been widely used in various industries including building, automobile, medical, daily chemical, textile and electronic communication, etc. For example, by using such material, the thermal performance of the construction can be guaranteed by releasing the water vapor in time. When being used in [...]

Powdered milk or dried milk is a manufactured dairy product made by evaporating milk to dryness. One purpose of drying milk is to preserve it; milk powder has a far longer shelf life than liquid milk and does not need to be refrigerated, due to its low moisture content. In order to guarantee the quality of the milk powder within its shelf life, the barrier property (including oxygen barrier property and water vapor barrier property) [...]

According to different uses, materials barrier properties of oxygen, water vapor, nitrogen, carbon dioxide, air and other gases are tested and expressed by the transmittance of the corresponding gas. Temperature and humidity are two important test parameters in the test of barrier performance. The change of temperature and humidity will affect the internal structure of materials and the movement ability of gas molecules, especially for water vapor permeability test, humidity is the drive for water [...]

BOPP adhesive tape is BOPP (Biaxially Oriented Polypropylene) film coated with acrylic based adhesive in different coating thickness. Aluminum coated BOPP adhesive tape is BOPP adhesive tape coated with aluminum foil. Aluminum coated BOPP adhesive tape is one new type of material that can be used in jobs requiring moisture and chemical resistance, thermal conductivity, flame resistance, heat and light reflectance, and weatherability. Sometimes it can be used to replace of aluminum tapes when applied [...]

There are different kinds of masks for different purposes: deep-cleansing, by penetrating the pores; healing acne scars or hyper-pigmentation; brightening, for a gradual illumination of the skin tone. Moisturizing skin is one of the main functions of the facial mask. The water contained in the essence of facial mask can keep the skin wet. Therefore it is a critical issue to minimize the loss of water inside the essence of facial mask. Currently aluminum plastic [...]

The pharmaceuticals are easily deliquesced after absorbing moisture, for which the packaging materials should be of high moisture barrier property. Aluminum plastic composite film is widely used in pharmaceutical packaging which can help extend the shelf life and guarantee the quality of the pharmaceuticals. However, the aluminum layer may be folded during package forming, product filling, heat sealing and transportation processes and as a result the barrier property (both oxygen barrier property and water vapor [...]

Water vapor permeability is one of the main performance indexes of package materials. As people are attaching more importance to the damp proofing and waterproofing of products, package materials with smaller water vapor permeability becomes the f.3us of package material development and application and is receiving more and more concentrations in recent years. Package manufacturers, material suppliers, product manufacturers and inspection centers are introducing water vapor permeability instruments one after another to intensify their efforts [...]

Moisture proof package is a most commonly used protection against moisture during logistics procedure, which avoids rusts and deterioration of the packed contents effectively and is widely used in machinery, electronics, foodstuff, medicine and daily care, etc. In order to guarantee moisture proof bag quality, relevant tests for this kind of package is a necessity. Relevant standards on moisture proof packages, such as GB/T 5048-1999, details on the gradation of moisture proof bags and relevant [...]

1. Differential Pressure Method Gas Permeation Instruments Labthink has a complete series of gas permeation instruments based on differential pressure method – VAC-V1, VAC-2, VAC-3, VAC-VBS, G2/131 & G2/132. Given different requirements on testing efficiency, Labthink gas permeation instruments are designed in various numbers (1, 3 and 6) and structure design of testing cells. VAC series multiple testing cells are fixed in line on the instruments, while G2 series instruments adopts Labthink’s latest exclusive patent [...]

The 27th International Exhibition on Plastics and Rubber Industries (“CHINAPLAS 2013″) – May 20 staged its grand opening in the China Import & Export Fair Complex, Pazhou, Guangzhou, PR China. Labthink demonstrated its latest and featured test instruments and techniques at this show and achieved a big success. As always, permeation test techniques as the featured techniques attracted thousands of visitors and customers to our exhibition booth. Labthink has a completed series of permeation testing instruments [...]