How to choose high quality tubes?
Tube, this convenient and economical packaging materials in the field of the daily use of widespread, and widely welcomed. A good tube can not only protect content, but also enhance the product level, so that the Japanese enterprises to win more consumers. So, for the Japanese enterprises, how to choose high-quality, adapt to their own products of the tube? Here are some important aspects to be introduced.
Tube Material selection, material quality is the key to ensure the quality of the tube, it will directly affect the processing and final use of the tube. Pipe material has polyethylene (for pipe body, pipe head), polypropylene (Guan Gai), color masterbatch, barrier resin, printing inks, light oil and so on. So any material selection will directly affect the quality of the tube. However, the choice of materials also depends on the hygiene requirements, barrier (the resistance to oxygen, water vapor, fragrance, etc.), chemical resistance and other factors.
Tube Pipe selection: First, the materials used to achieve the relevant hygiene standards, heavy metals, fluorescent agents and other harmful substances should be controlled within the prescribed scope. For example, pipes exported to the United States, used in polyethylene (PE), polypropylene (PP) to reach the United States Food and Drug Administration (FDA) standard 21CFR117. 1520.
Tube Barrier of materials: if the content of the Japanese enterprise packaging is a certain sensitive to oxygen (such as some whitening cosmetics) or the fragrance is very volatile (such as essential oils or some fats, acids, salts and other corrosive chemicals) products, at this time should be selected five layers of coextrusion pipe.
Tube Because the oxygen penetration rate of five-layer co-extrusion tubes (Polyethylene/bonded resin/EVOH/bonded resin/polyethylene) is 0.2-1.2 units, the oxygen penetration rate of the ordinary polyethylene single-layer tubes is 150-300 units. In a certain time, the weight loss rate of ethanol is dozens of times times lower than the single-layer tube. In addition, EVOH is a ethylene-vinyl alcohol copolymer, with excellent barrier property (thickness in 15-20 micron effect is the most desirable).