Plastic packaging materials

1、它具有重量輕、使用方便、阻隔性、滲透性、耐熱性、耐寒性、耐腐蝕性好、外觀色彩鮮艷、美觀等特點。因其原料來源豐富、成本低、性能優異，被廣泛應用于食品包裝中，逐漸取代了玻璃、金屬、紙張等傳統包裝材料，極大地改變了食品包裝的外觀。值得注意的是，塑料包裝材料存在一個突出的缺點，不易降解，焚燒時會產生有毒氣體。而且塑料包裝材料是塑料制品中使用壽命短的品種，一般一個月。～三個月，不超過一年，此后大部分城市固體廢物進入垃圾處理系統，有的則隨意丟棄，造成“白色污染”。

1. It has the characteristics of light weight, convenient use, barrier, permeability, heat resistance, cold resistance, good corrosion resistance, bright color appearance, and aesthetics. Due to its rich source of raw materials, low cost, and excellent performance, it is widely used in food packaging, gradually replacing traditional packaging materials such as glass, metal, and paper, greatly changing the appearance of food packaging. It is worth noting that plastic packaging materials have a prominent drawback: they are not easily degradable and can produce toxic gases during incineration. And plastic packaging materials are the varieties with a short service life among plastic products, usually one month Three months, no more than a year, after which most of the urban solid waste enters the garbage treatment system, and some are randomly discarded, causing "white pollution".

2、塑料包裝材料在廢棄物中所占的比例很大，對環境的污染在各種包裝材料中也很嚴重。目前的處理方案是回收利用和降解塑料的開發應用相結合。此外，由于塑料制品本身存在缺陷，其耐濕性和阻隔性普遍不如金屬和玻璃容器，因此改善現有的塑料性能、開發新品種、提高強度和阻隔性、減少用量、重復使用、分類回收等非常重要。

2. Plastic packaging materials account for a large proportion of waste and cause serious environmental pollution among various packaging materials. The current treatment plan is a combination of recycling and the development and application of degradable plastics. In addition, due to the inherent defects of plastic products, their moisture resistance and barrier properties are generally not as good as those of metal and glass containers. Therefore, improving the performance of existing plastics, developing new varieties, increasing strength and barrier properties, reducing dosage, reusing, sorting and recycling are very important.

二是紙質包裝材料

Secondly, paper packaging materials

1、紙質和紙質包裝容器在現代包裝工業體系中占有重要地位，占所有包裝材料總量的40%～50%。與其他材料相比，它具有一系列獨特的優點:加工性能好、印刷性能好、機械性能好、復合加工方便、成行性好、衛生性好、原材料來源廣泛、品種多樣、成本低廉、易于大規模生產。紙質包裝容器重量輕、緩沖性好、應用廣泛、廢物可回收、無白色污染。隨著人們意識的增強和生活實際需要，植物纖維快餐盒的開發和天然綠色包裝材料的開發將成為未來紙制品食品包裝材料的趨勢。

1. Paper and paper packaging containers play an important role in the modern packaging industry system, accounting for 40% to 50% of the total amount of all packaging materials. Compared with other materials, it has a series of unique advantages: good processing performance, good printing performance, good mechanical performance, convenient composite processing, good processability, good hygiene and safety, wide source of raw materials, diverse varieties, low cost, and easy large-scale production. Paper packaging containers are lightweight, have good cushioning properties, are widely used, waste can be recycled, and have no white pollution. With the increasing awareness of environmental protection and the practical needs of daily life, the development of plant fiber fast food boxes and natural green packaging materials will become the trend of paper food packaging materials in the future.

2、此外，隨著包裝技術的快速發展，可食用包裝紙是現代食品包裝的重要發展方向。這種包裝具有重要的和經濟價值。目前國外有兩種可食用的紙張，一種是以蔬菜為主要原料，成型后干燥蔬菜;另一種是將淀粉、糖糊化，加入其他食品添加劑，以類似造紙的方式成型。從應用和發展前景來看，以蔬菜為原料的綠色產品具有更大的發展潛力。

2. In addition, with the rapid development of packaging technology, edible packaging paper is an important development direction for modern food packaging. This type of packaging has important environmental and economic value. At present, there are two types of edible paper abroad. One is mainly made from vegetables, which are dried after forming; Another method is to gelatinize starch and sugar, add other food additives, and shape them in a similar way to paper making. From the perspective of application and development prospects, green products made from vegetables have greater development potential.

金屬包裝材料三

Metal Packaging Material III

金屬包裝材料的優異性能包括:高阻隔性、優異的機械性能、良好的容器成型加工工藝、良好的耐高低溫性、導熱性和耐熱沖擊性、良好的表面裝飾性和易于回收的包裝廢棄物。這種包裝材料多用于罐頭和一些液體、糊狀、粉狀或高檔食品。常用的金屬包裝材料有馬口鐵和鋁，廣泛用于制造食品和飲料的包裝罐。

The excellent performance of metal packaging materials includes: high barrier resistance, excellent mechanical properties, good container forming and processing technology, good resistance to high and low temperatures, thermal conductivity and heat shock resistance, good surface decoration, and easily recyclable packaging waste. This packaging material is often used for canned goods and some liquid, paste, powder or high-end foods. Commonly used metal packaging materials include tinplate and aluminum, which are widely used in the manufacturing of food and beverage packaging cans.