The principle of dialectical conception of card seat sofa is to use the design principles and methods of dialectical thinking to conceive, which requires the synthesis of various design elements, and the consideration of material function and spiritual function at the same time;

不仅设计要符合造型的审美艺术要求，还要考虑到用材、结构、设备与工艺以及生产效率和经济效益等因素，做到艺术性与工艺性的辩证统一；

The design should not only meet the aesthetic and artistic requirements of modeling, but also consider the factors such as material, structure, equipment and technology, production efficiency and economic benefits, so as to achieve the dialectical unity of artistry and technology;

不但卡座沙发形态、色彩、质感要协调且有美感，而且加工、装配、装饰、包装、运输等在现有的生产水平下也能得到满足；此外还应辩证地处理卡座沙发的造型与功能等问题。

Not only the shape, color and texture of the card seat sofa should be coordinated and aesthetic, but also the processing, assembly, decoration, packaging and transportation can be met under the existing production level; In addition, we should dialectically deal with the modeling and function of card seat sofa.

需求是人类进步过程中不断产生的新的欲望与要求，并且人的需求是由低层次向高层次发展的。现代卡座沙发设计应适用“以人为本”的现代理念，好的新产品要求功能有新的开拓，适合于现代生活方式。

Demand is a new desire and requirement constantly generated in the process of human progress, and human demand develops from low level to high level. Modern card seat sofa design should apply the modern concept of "people-oriented". Good new products require new development of functions, which is suitable for modern lifestyle.

以人们新的需求、新的市场为目标开发新产品也是一条主要的设计原则。设计者要从需求者、消费群体中，通过调查得到直接的需求信息，特别是要从生活方式的变化迹象中预测和推断出潜在的社会需求，并以此作为新产品开发的依据。

It is also a major design principle to develop new products aiming at people's new needs and new markets. Designers should get direct demand information from demanders and consumer groups through investigation, especially predict and infer the potential social demand from the signs of lifestyle changes, which can be used as the basis for new product development.

卡座沙发设计过程就是创造过程，创造性当然也是设计的重要原则之一。设计师应在现代设计科学的基本理论和现代设计方法的基础上，应用创造性的设计原则，去进行新产品的开发工作，不断进行卡座沙发新功能的拓展，大量采用对人体无害的绿色新材料、新工艺，在造型上讲究时尚与前卫，在技术上应用微型计算机以体现智能化，使整体个性、品牌、功能一体化。

The design process of card seat sofa is the process of creation, and creativity is certainly one of the important principles of design. Based on the basic theory of modern design science and modern design methods, designers should apply creative design principles to develop new products, constantly expand the new functions of card seat sofa, adopt a large number of green new materials and processes harmless to human body, pay attention to fashion and avant-garde in modeling, and apply microcomputer in technology to reflect intelligence, Integrate the overall personality, brand and function.