Over the past three hundred years of the industrial revolution, human civilization has developed rapidly. At the same time, the natural resources and ecological environment that are available for use have also been greatly affected. Mankind must think about new development paths. The United Nations Environment and Development Commission issued “Our Common Future†in 1987. The United Nations Conference on Environment and Development adopted the Rio Declaration on Environment and Development and Agenda 21 in 1992 and immediately launched a worldwide Protecting the ecological environment as the core of the green line of action; China's packaging industry "Ninth Five-Year" development plan and 2010 vision of development goals clearly pointed out that the development of the packaging industry should follow the principle of combining accelerated growth with the protection of the environment, green packaging design will focus on The ecological balance between man and nature, minimizing the destruction of the living environment is a strategic height to frame the design strategy, green packaging design promotes economic, cultural and social development; green packaging fully reflects the coordination of environmental protection and economic development. The strategy of sustainable development, the protection of the environment, and the development of green packaging have become an inevitable choice for the development of packaging in countries around the world. Green packaging will become an inevitable trend in the development of the packaging industry.
Green packaging, English "Green Package", some people also call it the Friends of the environment packaging "Eviromental Friendly Package" or ecological package "Ecological Package", that is not harmful to the ecological environment and human health, can be recycled and recycled packaging. Green packaging is a systematic project, which includes many aspects such as containers, packaging materials, packaging design, production processes, and waste disposal technologies. It is the development direction of packaging disciplines and also the sustainable development path of China's packaging industry.
At the same time, some packaging designers still have a problem in understanding the basic concept of packaging. They think that product packaging design is only an important means to evoke consumers’ desire to purchase, promote the sale of goods, and obtain economic benefits. Under the effect, a large number of packaging designs that only focus on the immediate economic interests have emerged. For example, the size and volume of commodity packaging have been excessively increased, and unnecessary multi-level and tedious packaging has been carried out. In order to make products have a sense of luxury, high-cost printing is used, and in order to reduce packaging costs, the use of The phenomenon of packaging materials that are difficult to recycle and handle is also everywhere.
Green packaging generally has five aspects:
First, reduction
Natural resources are the material basis for the packaging industry. From the perspective of sustainable human development, packaging should meet the protection, convenience, sales, and other functions. The use of raw materials should be minimized to benefit future generations.
Second, easy to reuse, easy to recycle
Through the production of recycled products, incineration and utilization of heat energy, composting to improve soil and other measures to achieve the purpose of reuse.
Third, the waste packaging can be degraded
Ultimately, no permanent waste is formed, and the purpose of soil improvement is achieved.
Fourth, packaging materials are non-toxic to humans and organisms
Packaging materials should not contain toxic elements, bacteria, heavy metals or these contents should be controlled below relevant standards;
V. Packaging is closely related to environmental protection and ecological balance
Packaging products shall not cause pollution to organisms or the environment from the collection, processing, manufacturing, use, recycling, and recycling of raw materials until their final disposal.
In a broad sense, in the packaging of production, manufacture, use, and recycling, we respond to human health and have a good protective effect on the ecological environment. As an important part of the packaging industry, packaging design can develop green packaging. Play a pivotal role, I think that can be considered from the following aspects:
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Dental chairs are one of the most widely used products in the dental field.The dental chair is used for inspection and treatment of oral surgery and oral diseases. Electric dental chairs are mostly used. The main structure is divided into 8 parts (Figure 1). The bottom plate of the whole machine is fixed on the ground, and the bottom plate is connected to the upper part of the dental chair through a bracket. The movement of the dental chair is controlled by the back of the chair. The working principle of the control switch is: the control switch starts the operation of the motor and drives the transmission mechanism to move the corresponding parts of the dental chair. According to the needs of treatment, by manipulating the control switch button, the dental chair can complete the movements of ascending, descending, pitching, tilting posture and resetting.
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