Marketing is the science of influencing customer behavior. In other words, the aim of almost all attempts and programs in marketing is to change the attitude, motivation, knowledge, style and behavior of the customer and prospective buyers. On the other hand, in an eagles eye view, the marketing activities not only affect the consumers but also have an indirect impact and side effects on other parties and influence wide spread changes in human societies. In this research, the researchers have tapped a sample the population of Tehran using washing machines through random sampling procedure, in which 436: individuals purchasing and using washing machines of 6 brand including LG, KENWOOD, SAMSUNG, BOTSCH, AZMAYESH& ABSAL were studies. The instrument was research develop questionnaire through which the idea of customer were obtained. Based on the hypotheses raised, the findings showed that there was a positive significant relationship between the variables of interactive appropriacy of the seller and their dutifulness with customer satisfaction as well as customer loyalty to the brand also; intrinsic dealer quality and extrinsic dealer quality has a positive effect on loyalty to the brand. It might be concluded that the findings support more attention from the side of the employer in employing the staff attentive to certain issues in facing customers. In other training aspects of the staff regarding how to attend to the customers need, the local setting, timing and a couple of other issues.

Brands are considered as valuable assets of a company both economically and strategically. Thus, having customers who are loyal to a brand is one of the main goals of businesses companies. Identifying and anticipating the customers' needs are vital to the enterprises gaining competitive advantage and market segmentation. Maintaining and enforcing customers' loyalty is a strategic challenge for companies seeking to keep and promote their competitive status in the market. High brand loyalty of the customers generates competitive advantage for the company and it increases the income and decreases the costs of marketing. In addition to increasing the market share, loyalty allows to ask for higher prices compared with its competitors. This study seeks to investigate the factors influencing customer loyalty to sport brands. The statistical population of this research was Tehran city. Using simple cluster sampling, 502 customers of four known brand sports, i.e. Nike, Puma, Adidas, Reebok, and Fila were chosen. Furthermore, a questionnaire, which assessed seven variables including reputations, brand name, brand image, brand loyalty, customer satisfaction, promotion and the price was used and the hypotheses were analyzed using statistical tests such as KolmogorovSmirnov test (K-S test), Spearman correlation, simultaneous linear regression and binomial test. The findings suggested that the brand name has a strong correlation with brand loyalty. Moreover, variables such as reputation, brand image, customer satisfaction, price and promotions also have positive and significant effect on the brand loyalty.

The introduction of products with a similar brand name can function as a lever on the brand image, brand awareness and in general in reaching the brand equity in the established markets, the relation or connection of an existing brand with a new product can affect the relations and connections of the existing brand image as well as the loyalty to the brand. This effect can be positive or negative. Through investigating this image the researcher tried to help the company to guaranty a fit image, compete in the global scene and stabilize its position. The study in this research took place on Tehran districts. As the sample, the researcher chose 500 of Faloodeh-ice-cream consumers of Mihan Company through simple cluster sampling and gained the required data about the consumers' views and ideas through questionnaire. The data has been analyzed by using Lisrel software. The research findings showed that the brand image has positive and direct influence on the perceived category fitness, the perceived category fitness on the brand-extension attitude and the initial brand image on the brand -extension attitude respectively. Companies had better avoid ruining the original brand position in the consumers' mind by maintaining the appropriateness of their new products which were produced in proportion with the consumers' ideas and needs.