فصلنامه علوم و فناوری نساجی
سال دهم شماره 4 (زمستان 1400)

The natural fibers of wool as a pile yarn in the hand-woven carpet have an unpleasant odor that makes the user feel uncomfortable. In many researches, scientists have paid attention to the use of different chemical compounds to eliminate unpleasant odors. Synthetic dyes and co-agents have destructive and adverse effects on nature, the use of new and natural resources, especially those that are more biodegradable, has received much attention in the last few decades for scientists around the world and is of great importance. Citrus peels contain substances such as natural oils, linalool compounds, aromatic substances, carotenoids, and anthraquinone dyes, which can be used to improve vegetable dyeing. The aim of this research was to study the efficiency of citrus waste to improve the quality of natural dyeing of woolen yarn with madder and weld. The dyeing characteristics of the samples were studied by measuring the color parameters L* a* b* and K/S dye absorption and the washing, staining, and light fastnesses of the samples. Also, dyed samples' hardness and their odor were qualitatively measured and studied. The results showed that the color quality of dyed woolen yarns was enhanced to some extent in the presence of citrus peel. dyeing fastness in the presence of citrus was improved. Infrared and ultraviolet spectroscopy showed a change in the amount of absorption affected by the presence of citrus peel components in the dyeing bath. The use of orange and lemon peel also improved the natural unpleasant natural odor of wool fibers and their hardness.

The purpose of this research is to identify, categorize and rank marketing performance criteria in the fashion and clothing industry. The research method is developed qualitatively using Q methodology. The participants in this research were eight economic practitioners in the fashion and clothing industry directly related to the subject of the research. The discourse space of the current research was formed from various sources. Having evaluated and summarized the discourse space, 54 expressions were selected as the examples of Q expressions following a survey of the experts' views. The collected information from the Q sorting was analyzed by the Q factor analysis method. The distribution analysis showed that two distinct mental patterns could be identified among the participants in this research, which explained 58.37% of the total variance. These two mental patterns were termed as "external criteria" and "internal criteria" according to the priority given by the experts. The importance and prioritization of the identified factors was determined based on the mental patterns. The group of experts who gave the highest priority to the three factors of customer satisfaction, customer loyalty, and product quality according to customer needs was identified as the experts who believed in external criteria. And another group of experts who gave the priority to the three factors of employee skills, employee motivation and intellectual capital was identified as experts who believed in internal criteria. Finally, solutions for using these factors were proposed as being effective in improving the company performance.

The historical study of Qajar clothes showed that in terms of the many trips of the Qajar kings to Farang, it was obvious to imitate the European culture. The purpose of this research was to investigate the factors and factors affecting the evolution of Iranian clothing from the clothing of the British and French governments in Europe, which examines the clothing of the second Qajar period in parallel with its contemporary dynasties in Europe. The current research is applied in terms of purpose and descriptive in terms of method. The main question of this research is that which fields and characteristics of European clothes were influential in the evolution of the clothing of the second Qajar period, which is one of the necessities of this research. The results of the comparative analysis of the images of the clothes between the clothes of the Qajar kings of Iran and Europe showed that the political, cultural and economic relations of the governments had the most changes in women's and men's clothes, so that the design, silhouette and color of the clothes of the second Qajar kings were completely influenced by the European clothes. The governments of England and France were the same era. In 1840, the most colors in men's and women's clothing included coats in black, white, gray, green, pea, blue, red, and blue and purple pants made of silk fabrics. At the end of the Nasrid period, the colors were white, black, blue-green, brown, pink, cream, fawn, gray, navy, emerald, red, purple and royal blue. During the period of Muzaffaruddin Shah, Mohammad Ali Shah and Ahmad Shah, blue-green, white, blue, pink, brown, cream, fawn, gray, navy, emerald, red, and purple colors were used.

Intergenerational differences mean that there are significant differences between the two generations of parents and children in different aspects of life. Therefore, the purpose of this study is to investigate the role of intergenerational communication (child-parent) on brand equity in clothing purchase at different levels of situational involvement. The present study, in terms of research time, is cross-sectional; In terms of research results, applied; In terms of the research process, a combination; In terms of the purpose of the research, it is descriptive-survey (and of the case study type) and in terms of the logic of the research, it is inductive. . For this purpose, a questionnaire based on the research work of Cai and Associates (2015), Hang and Cai (2015) and Zaichkowsky (1985) was carried out to collect information among the members of the family (quadratic connection) : mother- daughter, mother-son, father- daughter, father- son, in Tehran's metropolitan in 22 regions was staging clustering sampling and 384 questionnaires were analyzed. The results of structural equation modeling were analyzed using Smart PLS software. The results show that parenting relationships with children in clothing marketing affect the perceived value of a brand, Hence, understanding mental involvement of and intergenerational communication between parents and children at purchasing has a special importance for those who design, produce and sell consumer products, and using it, they can propose new advertising strategies and tactics.

Today, along with the increasing importance of environmental issues and the concept of social responsibility in societies, it seems necessary for consumers of different products to recognize the factors affecting the green mental image. Therefore, the importance of developing a new green product and its role in creating an organizational brand and positive imagery in the minds of customers is increasing and is one of the factors creating a competitive advantage for organizations. The main purpose of this study is to design and analyse a model to investigate the effect of two strategies of fibers and the use of natural dyes in the supply chain of raw materials in the development and visualization of green handmade carpet products by consumers, with structural equation modelling approach in Smart Pls software. In order to collect field information, a researcher-made questionnaire was used in the statistical population of handmade carpet consumers in Isfahan. The results showed that the development of the concept of green in the product and the intention to buy and consume them is an initiative and innovation that in addition to the prosperity of the green market, is an activity with high social value in human life. It was also found that the use of natural dyes in the dyeing of pile yarns has a stronger effect in creating and associating the concept of green product in handmade carpets than the raw material strategy.

The unique properties of the bacterial cellulose nanostructure produced by Acetobacter xylinus are the reason of extensive research to produce an ideal wound dressing. The aim of this study was to evaluate antibacterial effect of bacterial cellulose finished with dendrimer and herbal extract ( henna, green tea, malva sylvestris) and chemical pharmaceutical compounds )penicillin, lidocaine, glycolic acid) on Staphylococcus aureus) Gram positive( and Pseudomonas aeruginosa ) Gram negative )bacteria. Cellulose disks prepared from bacterial cellulose were finished with 0.5% dendrimer. The bacterial cellulose was then immersed in herbal extracts and chemical materials for 48 hours at room temperature. Antimicrobial results were measured as a disk diffusion after 24 hours. Drug delivery of herbal extract and chemical pharmaceutical compounds from bacterial cellulose in water and phosphate buffer, microscopic analysis)SEM) and spectroscopy FTIR were evaluated. All samples treatment with dendrimers and herbal and chemical compound had a growth inhibition zone on Staphylococcus aureus bacteria and the bacterial cellulose treatment with glycolic acid had a growth inhibition zone against Pseudomonas aeruginosa. Drug delivery of all materials in phosphate buffer was more than water. Scanning Electron Microscopy (SEM) results showed that pure bacterial cellulose samples had a highly porous three-dimensional network. The results of the FTIR analysis indicated functional groups on the surface, chemical bond between bacterial cellulose and dendrimer, dendrimer and herbal extract, and chemical pharmaceutical.