满足质量要求的纸盒

Paper boxes that meet quality requirements

除透明性以外，纸盒可以通过其结构和材料来实现其功能要求。按形状分，代表性的纸盒包括屋顶盒结构纸盒、方形盒以及其他结构的纸盒。

In addition to transparency, paper boxes can meet their functional requirements through their structure and materials. According to shape, representative paper boxes include roof box structural paper boxes, square boxes, and other structural paper boxes.

再生性

Regenerative

作为代表性的纸盒有屋顶盒结构的纸盒、牛皮纸盒、牛皮饮料杯等。其结构分为聚乙烯／卡纸／聚乙烯三层。所用的卡纸从250g/㎡-400g/㎡具体根据纸盒的大小、形状以及内容物重量来选定。

Representative paper boxes include roof box structures, kraft paper boxes, and kraft beverage cups. Its structure is divided into three layers: polyethylene/cardboard/polyethylene. The cardboard used ranges from 250g/㎡ to 400g/㎡, depending on the size, shape, and weight of the contents of the cardboard box.

这些纸盒所用的卡纸是通过挤压机在卡纸的正反面进行聚乙烯的挤压成型加工制成的。由于纸与聚乙烯在碱溶液当中比较容易剥离或分离，使得纸张成分的再生容易实现。纸盒的再生利用得以实现，除了上述所言的纸张成分容易再生的因素外，还有一个原因就是实际上只使用原浆来生产纸盒用卡纸。

The cardboard used in these cardboard boxes is made by extruding polyethylene on both sides of the cardboard using an extruder. Due to the easy detachment or separation of paper and polyethylene in alkaline solutions, the regeneration of paper components is easy to achieve. The recycling and utilization of paper boxes can be achieved not only due to the factors mentioned above that the paper components are easily recycled, but also because only the original pulp is actually used to produce cardboard for paper boxes.

阻隔性

barrier 

氧气、水蒸气以及光线是导致包装内容物变质的原因。为了给纸盒增加有关的阻隔性能，方法之一是与铝箔复合。此方法可以使纸盒具备阻隔氧气、水蒸气以及光线的功能。采用铝箔复合的纸盒，其中的内容物可以实现长期保存。

Oxygen, water vapor, and light are the reasons for the deterioration of the packaging content. One method to increase the barrier performance of the cardboard box is to composite it with aluminum foil. This method can make the cardboard box have the function of blocking oxygen, water vapor, and light. The paper box is made of aluminum foil composite, and the contents can be stored for a long time.

纸边保护结构

Paper edge protection structure

利用适合顾客需要的印刷方法，在经过挤压机层压加工制成的纸盒用卡纸表面进行印刷加工。主要的印刷方法包括凹印和胶印，大批量的场合采用凹印，小批量的场合采用胶印，不过有时是按满足设计的要求来选择印刷方法的。印刷完毕的卡纸经模压模切制成所需的展开形状，接着通过一台火焰密封设备，利用其气体火焰使聚乙烯熔融在卡纸正反面的纸边部分，将卡纸正反面的边缘相互粘合而制成纸盒。

Using printing methods that are suitable for customer needs, the cardboard surface of the paper box made by laminating with an extruder is printed and processed. The main printing methods include gravure printing and offset printing. Gravure printing is used in large quantities, while offset printing is used in small quantities. However, sometimes the printing method is selected based on meeting design requirements. The printed cardboard is molded and cut into the desired unfolded shape. Then, through a flame sealing device, the gas flame is used to melt polyethylene on the edges of the front and back sides of the cardboard, and the edges of the front and back sides of the cardboard are bonded together to form a paper box.

对于咖啡、饮料类的对纸具有高渗透性的内容物而言，纸盒的边缘部一旦与饮料等接触，就会因内物液体的渗透使纸盒的强度变差，产生泄漏乃至损坏。因此，通过粘贴纸带或者将纸折叠来防止纸边缘与内容物液体相接触。通过这样的方法，加上前面提到的增加阻隔性能的结构，保证了饮料纸杯能在常温下的流通以及长期保存。

For coffee and beverage contents with high permeability to paper, once the edge of the paper box comes into contact with beverages, the strength of the paper box will deteriorate due to the penetration of the liquid inside, resulting in leakage and even damage. Therefore, by pasting paper tape or folding the paper to prevent the edges of the paper from coming into contact with the liquid content. Through this method, combined with the previously mentioned structure that increases barrier performance, the beverage paper cup can circulate at room temperature and be stored for a long time.

环境保护

environmental protection

使用铝箔虽然为纸盒饮料的长期保存提供了可能，但会造成原纸的再生困难、还会导致焚烧纸容器时其中的铝箔损坏焚烧炉的事故发生。通过采用替代铝箔的阻隔材料，可以实现既能环保又能长期保存的全面要求。典型的替代用阻隔材料如EVO（ 乙烯醋酸乙烯共聚物）和硅真空镀膜。

Although the use of aluminum foil provides the possibility for long-term preservation of paper box beverages, it can cause difficulties in regenerating the original paper and also lead to accidents where the aluminum foil inside the paper container is damaged in the incinerator during incineration. By using barrier materials that replace aluminum foil, comprehensive requirements for both environmental protection and long-term preservation can be achieved. Typical alternative barrier materials such as EVO (ethylene vinyl acetate copolymer) and silicon vacuum coating.

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