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Press Releases from Labthink International, Inc. (12 total)

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

How to test the shrinkage properties of shrink film used for bottled water?

Source: Labthink Instruments Co., Ltd Shrink wrap, also shrink film, is a material made up of polymer plastic film. When heat is applied, it shrinks tightly over whatever it is covering. It is very common to see shrink film is used to pack bottled drinks such as beers, mineral water and beverage, etc. Such kind of packaging is featured with good flexibility, tear resistance, impact resistance and durability. Common raw materials

How to test the heat sealing property of the bottom of plastic bags?

Source: Labthink Instruments Co., Ltd A plastic bag, polybag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, powders, ice, magazines, chemicals, and waste. It is a common form of packaging. Plastic bags are widely used because of its outstanding features such as low price, light weight, large capacity and

Coefficient of Friction Test Method of Seeds

In modern agriculture, the selecting, transportation and sowing of seeds are all realized by automatic mechanization, which also makes a great contribution to the increase of output of grains and income of farmers. The coefficient of friction of the seeds against agricultural machinery may influence the working efficiency greatly. The coefficient of friction is one main factor that shall be considered when selecting surface materials of agricultural machinery and determining

Oxygen Barrier Property Test Method of PET Bottles for Alcoholic Drinks

The alcoholic drinks such as liquor, beer, rice wine and medicinal liquor are liable to volatilize and sensitive to oxygen. Therefore, the packaging material used for alcoholic drinks usually should have sufficient oxygen barrier property. Otherwise, the alcoholic drinks may get deteriorated or become unpleasant in taste within shelf life. In the history, many materials are used in the package for alcoholic drinks, e.g. bronze ware, wood, ceramic, pottery, glass

Testing Solution of Oxygen Barrier Property of Aluminum Plastic Composite Packag …

Some ingredients contained in the medications are liable to be oxidized, which may cause the deterioration of the medications. That’s why the packaging materials used for medications are required to have sufficient oxygen barrier properties. Considering the drug safety, the packaging materials for medications should meet specific requirements especially for the oxygen barrier property. The packaging for medications shall have sufficient oxygen barrier property so that the medications can be

Compound Strength Test Method of Composite Film used for Plastic Cup Cover for Y …

Yogurt is a food produced by bacterial fermentation of fresh milk. A large amount of protein, fat, vitamin and various beneficial bacteria are contained in the yogurt, which are easy to be digested and absorbed by the human body. Since the yogurt has a very short shelf life, the packaging material used for the yogurt shall have sufficient barrier property to avoid oxidization of those nutrients. There are various forms of

Permeability of Snack Packaging and Shelf life

One of the most important properties of most snacks is their crispness, which is created when the snack is dried during production – e.g. roasting, baking or frying which all reduce the moisture content to a very low level. 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

Water Vapor Barrier Property Test Method of PET Bottles for Alcoholic Drinks

Usually the packaging materials used for alcoholic drinks (wine, liquor, etc.) should have sufficient barrier properties. Otherwise, the fragrance and taste of the alcoholic drinks may be compromised due to the change of concentration. With the development of alcoholic drinks industry and packaging industry, PET bottles are introduced to the market. PET bottles are widely used to pack cosmetics, medical and healthy products, beverage and engine oil, etc. They are

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