Wuhan Handern Dairy Packaging
DATE：2020/6/18 8:31:36 / READ： / SOURCE：This station
Wuhan Handern Dairy Packaging
Dairy crystals include milk: dry road, yogurt, ice cream, cream, margarine and yogurt. www.handern.com Hollow board equipment1. Milk packaging
The packaging of milk in North America is very different from Europe. In North America, a large amount of milk is used in vehicles, which are selected and distributed to each household and used to send the containers to the household containers for users. A small amount of milk is packed in glass bottles of milk. The glass bottles are recyclable. However, this kind of packaging is not suitable for sale in supermarkets and food stores. The glass bottles are too heavy, fragile, and lack proper seals. In the 1940s in Maine and Canada, light-weight cardboards with non-recycled cardboard boxes were used to pack milk. The original cardboard boxes consisted of wax-coated cardboard. With the current standard rice, the sealability is poor. There is a leak, milk sometimes has a waxy smell. In the 1960s, paraffin was replaced by LDPE, which can solve the problem of desire and waxy taste. At this time, the beginning of packaging milk in glass bottles is gradually reduced, because the milk in carton packaging is disposable , It is not recycled and reused, it is more convenient, lighter in weight, and has low transportation cost, and is not easy to break. It is loved by people, and the milk in glass bottles is modified. Blow molded HDPE and LDPE jars, with the cost gradually approaching coated cardboard, replacing other milk packaging, especially 3.785L (1 plus warehouse) weight packaging size, plastic jars are more suitable for children Heavy use, so far, the cardboard box is still used on milk packaging below 1.892L. (half gallon), because the lower cost environment is more acceptable. www.handern.com Hollow board equipment
In the 1960s, PE film was used for forming, filling and sealing machines for bottom and top sealing milk tube bags, gradually replacing plastic bottles for packaging. PE film was used as a packaging material for forming, filling, and sealing machines. When packaging body products, heat sealing is not a problem, because it does not contaminate the heat cover, but the milk used in liquid is very contaminated by the Rong County, which affects the heat seal fastness and heat seal reliability. The size of most bags is three small packages and then packed in a large outer bag. When the milk is to be poured out, use scissors to cut a corner at the top bag corner. The handle and bracket fixed by the outside curtain bag are poured into the jug. The use of LLDPE resin on the milk packaging bag not only provides strength for the milk bag, The pinhole also allows the milk film to be heat-sealed, and is produced on the high-speed production line of the milk product factory, because DPE has a large thermal viscosity and can be heat-sealed even if the hot cover is contaminated. www.handern.com Hollow board equipment
The packaging of liquid dairy products includes the entire dairy product: low-fat, non-fat, flavored milk, cream, milk fat, egg packaging principles are: www.handern.com Hollow board equipment
①No leakage occurs in the packaging container that is resistant to breakage
② Ensure that no external impurities invade the contents. www.handern.com Hollow board equipment
③ There must be a method for easy removal of the product; the frozen pot life of the liquid pasteurized milk product is related to the storage temperature, the degree of penetration of the packaging into the environment, and the amount of natural bacteria present in the finished product. The frozen pot life is about 14d If the post-pasteurization treatment is anti-fouling and good, clean and sterile, the freezing period is up to 16-20d. If it is to be stored at room temperature for several months, it can only be processed and produced at a higher temperature. "Ultra high temperature milk", this milk is first pasteurized. Then raise the temperature to a short period of 1 to 3 seconds to kill the high temperature of the bacteria, and then cool and quickly enter the vacuum chamber. When packed in an unobstructed container, such as HDPE jars, this type of packaged milk The cryopreservation period will be longer. www.handern.com Hollow board equipment
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