Question and countermeasure of frozen food packing

Question and countermeasure of frozen food packing
In the past few years, because the substantial increase of the cold capacity of Kuku of the frozen food, in addition, consumer vs. approval of foods frozen (is nutrition, hygiene mainly, convenient) Make it appear a kind of flourishing trend not to freeze the market of food. The development, change of social rhythm of life and family type attitude and change of food structure of global economy are frozen food industry's fast-developing main reasons. According to the statistics made by the departments concerned, the annual production of the frozen food of our country has been already about 6,500,000 tons at present, and is increasing progressively at the speed of 25% for every year, per person has consumed every year and has already been close to 10 kilograms. With the constant popularization of frozen food packing, have put forward higher requirement to the performance of the food packer too. Frozen food packing is changing constantly, require the frozen food packer to have more multi-functions gradually too.
The basically requiring from produce, is transportedding to sale of frozen food packing, keep the intersection of quality and characteristic of product its, prevent bacterium from pollute and eat, take convenient. At present, there are two major kinds of packaging forms of the frozen food: Soft type and hard type. The soft type is based on plastic sheeting. Thick hard packaging, such as slightly a bit thicker paper gift box, compound aluminium foil pressing container,etc., the former takes larger proportion. So, the food expects much to the food packer technology in trade, multi-functional. It drops the packing mechanical equipment that the market has employed into to be as follows, mainly already at frozen food packing nowadays Vacuum packer, plastic sealer, heat shrinking machine.
In actual production, the following questions appear easily in frozen food packing:
1.The shock-resistant performance of the bag is bad, the destruction apt to receive outside strength in the course is put in the transportation, loading and unloading, shelve, it is extremely apt to present the broken bag, open the bag phenomenon, not only influence packing the appearance of the products, at the same time can't play, pack the intersection of itself and due function.
2.Wrapping bag itself getting smooth and good, show as person who open one's mouth to be relatively poor in the production process, production efficiency is low, will make the rate of utilization of the wrapping bag reduce at the same time, cause the waste to the cost.
3.Heat of wrapping bag enough to seal intensity and heat seal temperature to be too high to lead to the fact heat to seal the damage phenomenon of layer, cause the protection performance of the wrapping bag to reduce, quality guarantee period of the content thing is shortened greatly, make the content thing unable to reach corresponding quality guarantee period.
4.The intersection of wrapping bag and layer little to strip intensity, break strength to be enough, mechanics of wrapping bag performance relatively poor, can not reach due bearing function while causing the wrapping bag and dividing the layer, wrapping bag, can't play effective protective action on the content thing.
5.The cold resistance of the frozen food be reached, require, under the situation lower in temperature, can't keep the intersection of material and original performance, packing materials relatively fragile, make it drop not to pack the intensity of mechanics of materials, cause the wrapping bag to break and fracture, let alone meet protective action on the content thing.
6.Apt function to tear mouth of wrapping bag can't give play to effectively, tear intensity lead to the fact wrapping bag to be difficult to open one's mouth greatly too, tear intensity to be too little to cause the intersection of wrapping bag and the intersection of mechanics and performance reduce, should satisfy wrapping bag to be apt to tear humanization of mouth, design, finish the protective action of the products at the same time.
7.The puncture performance of the wrapping bag, it is generally harder after the frozen food is frozen, especially fish, meat products, contain bone and hard object, very apt to make the wrapping bag pierce through that the products are pushed while transporting and piling up, make the wrapping bag cause and destroy, so the frozen food is expected very much to the puncture of the wrapping bag.
Guarantee the food security, regard packing and closing and freezing the food and packing as guaranteeing the important means to freeze hygiene of food security has got more extensive attention severely, in actual production, should pay attention to the following several respect in frozen food packing:
1.Characteristic and required protection condition of the frozen food.
Research influences freezing the principal ingredients in food, especially influence the sensitive factor of nutrient components such as fat, protein, vitamin,etc., including the influence factor in light, oxygen, temperature, microorganism, physics, mechanical mechanics,etc..

|