包装专业英语

1、Unit 2 Material Consumption,Unit Objectives,After studying this unit, you are able to: 1.describe different types of printing and packaging materials 2.understanding conversations concerning material consumption 3.make conversations about material consumption 4.write an inter-office memo,1st. warmin

2、g-up,Task 1 Tell your partner about their general characteristics and applications Task 2 The symbols for package handling instructions are internationally standardized. Look at the following symbols and decide what each symbol stands for.,2nd. Reading A,Questions: 1. How many types of printing and

3、packaging materials do you know? What are they ? 2. Which type of materials do you prefer to use for packaging and why? List at least two reasons.,Printing and Packaging Materials,Paper and Paperboard Paper and paperboard became important printing and packaging materials around the 1900s. They have

4、the following advantages: Produced in many grades and forms Recyclable and biodegradable Easily combined with other materials to make coated or laminated packs Produced with different degrees of opacity,包装印刷材料,纸和纸板 纸和纸板在1900年前后成为了重要的印刷承印物，它具备以下优势： 有许多不同档次和种类 具有可回收性和生物可降解性 容易与其它材料相结合生产出各种涂层或层压包装产品 具有

5、程度各异的不透明性,Paper qualities mainly differ in their surface treatment, such as coated or uncoated, textured or glossy. They are selected according to the purpose they need to fulfill. For example, uncoated paper has low reflection compared with high-gloss coated paper. The former is ideal for normal bo

6、ok printing, while the latter the choice for high-quality brochures.,纸张的各种特质主要取决于纸张的表面处理，如涂层或非涂层、纹理或上光。人们因不同的用途选择不同的纸张。比如，非涂布纸与高光泽的涂层纸相比反光率低。普通书籍采用非涂层纸就很理想，而高质量的宣传册显然就应采用高光泽的涂层纸。,Paper can also be subdivided into fine and coarse papers. Fine papers are used for printing books and magazines, and coar

7、se papers for packaging. Paperboard is typical of coarse papers. It is a kind of multi-layer material, the inner layer of which is usually made from recycled fibers. Corrugated board is a widely used type of paperboards to make containers because it is light, strong and easily changed for all produc

8、ts.,纸张还可以细分成精制纸和粗制纸。精制纸用于书刊杂志的印刷，粗制纸则用于包装。纸板就是典型的粗制纸。它是一种多层材料，内层往往由回收的纤维制品再造而成。用于制作集装箱的瓦楞纸板因其轻便、结实、易于量身定做等特点成为当今使用最为广泛的纸板之一。,Plastic material The use of plastics in packaging has accelerated rapidly since the 1970s, in large part because of their unique features: flexible, light, weighted, cost-effe

9、ctive, durable, unbreakable, hygienic and safe. Plastic has many variation, such as PVC in food packaging, or PET, a glossy film used for microwave trays and semi rigid containers. In printing, the selected plastic substrate usually determines the printing process to be used or the printing process

10、could help determine the substrate.,塑料材料 20世纪70年代，在包装行业塑料的使用得到了加速发展，这在很大程度上是因为其独特的功能：灵活、轻便、造价低、持久耐用、不易破碎、卫生及安全可靠。塑料产品有许多种类，如用于食品包装的PVC或用于制作微波炉专用盘子及半刚性容器的高光泽薄膜PET。印刷过程中，所选择的塑料承印物常常决定印刷工序，或印刷工序反过来决定塑料承印物的选用。,Metal materials Aluminum foil was adopted for packaging shortly after its initial production i

11、n 1913. As one of the major flexible packaging materials, it finds uses as a wrapper for a variety of products. Aluminum foil is generally laminated to paper or plastic films to increase ruggedness. When laminated to a polyester film, it becomes metallized polyester, which has outstanding barrier pr

12、operties and good printability.,金属材料 铝箔生产始于1913年，之后不久就用于包装。作为一种主要的软包装材料，它被用于各种产品的包装。通常人们将铝箔层压在纸张或塑料薄膜上以增强其坚固性。当人们将铝箔层压在聚酯薄膜上时，它就变成金属聚酯，具有出色的阻隔功能和良好的印刷适性。,Glass Glass is a rigid packaging material that dose not alter its characteristics with the passage of time, nor dose it need additional treatment to make it impervious. Although glass is heavier and more breakable than plastic and aluminum containers, it will remain an important packaging material for certain prod