http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Milad Sadeghi-Sadeghabad,Aliasghar Alamdar-Yazdi,Mohammad R. Fazel,Hasan Mashroteh 한국섬유공학회 2020 Fibers and polymers Vol.21 No.6
One of the most important behaviors of a rug is its compression-recovery effect. This paper compares thecompression properties of a conventional and a new Persian rug. In the new rug, some free spaces are created in the base partwithin the warp sheets. To do the comparison experiments, five rug samples were produced: A conventional Persian rug asthe comparison criterion plus four new types of rugs named Double-base Persian (DBP) rugs. At first, a theoretical analysisof the compression process in both conventional and new rugs is presented for further comparisons and validation. Then,using the tensile tester compression-recovery curves of the rug samples were obtained and experimentally investigated. Results of the theoretical analysis showed that in conventional rug, diameter, length and young’s modulus of pile yarn andapplied load are effective parameters, and in DBP rugs, in addition to those parameters, the gap size and warp yarn diameterare effective parameters on the compression deformation. Also, the experimental results showed that when a gap isintroduced in the rug base, the comfort and compressibility were significantly improved. Besides, increasing the distancebetween the two warp sheets effectively improves the comfort and compressibility of the DBP rugs.