“If the seam puckering is visible even after the cutting of sewing threads, then yarn displacement is the possible cause as shown in Figure
These problems are often corrected by finishing steps such as setting / treatment with resins, heat and steam, so that wale lines are perpendicular to the course lines. Such setting is often not stable, and after repeated washing cycles, skewing of the wales normally re-occurs. Influence of yarn properties
Polypropylene fiber can enhance both Compressive as well as Split Tensile strength. Specimens with various proportion of fiber ranging from 0.0% to 2.5% were prepared and tested.
It is believed factors like if the suture is kept too tight and the inflammatory response of the tissues due to the passage of the needle heightens the risk of infection(25). Incidence of wound infection also depends on the physical morphology and chemical
Picking which school to go to for your needle therapy preparing is a significant choice. Here are the main ten inquiries to consider while picking a needle therapy school: 1. What custom of needle therapy is educated at the school? There are numerous customs of needle therapy and diverse thought frameworks encompassing the workmanship. There is Japanese needle therapy, Traditional Chinese Medicine needle therapy, 5 Element needle therapy, Oriental Medicine needle therapy, facial or corrective needle therapy, therapeutic needle therapy and so forth.
The buckling resistance is obtained multiplying the resistance of the cross section by a reduction factor χLT. The reduction factor is a function of imperfection factor (αLT) and the non-dimensional slenderness LT, the non-dimensional slenderness LT depends on the elastic critical moment Mcr for lateral torsional buckling and Eurocode 3 does not provide any information on how to compute Mcr. According to (Eurocode 3) the values of the imperfection factor αLT for lateral torsional buckling should be taken
Interestingly, by controlling these parameters, the membrane structure could also be controlled. Many studies have been conducted in investigating the effect of different non-solvent coagulant bath in membrane fabrication via phase inversion system. Wang and Lai demonstrated that viscous fingering is responsible for the formation of finger-like voids in the phase inversion of ceramic membrane fabrication [10]. In the study, flat-sheet alumina membranes was used as a benchmark to verify the unique features of this viscous fingering phenomenon by using three different types of coagulant bath; distilled water, ethanol and mixture of NMP and water. Among these different cogulants, water is the strongest while mixture of NMP and water is the weakest.
The peak observed in FTIR at 1560 cm-1, which is attributed to the deformation mode of amino group in APS forming hydrogen bond with silanol, confirm this observation. The grafting of surface modified nano-silica particles on the ramie fiber introduced a nano-scale fiber surface roughness . A schematic representations of ramie fiber treated with silane/nano-silica are shown in Fig. 6a and
The fiber suspension to papermaking consists of a large number of components which differ from each other in various respects such as size, shape, surface area, surface roughness and electrical charge (Figure 1). The suspension of fibers and fine contains mineral filler and additives which aim at improving the process of papermaking and their properties. The fibrous material when dispersed in aqueous medium develops surface charge due to the presence of ionizable functional groups such as the hydroxyl and carbonyl. Which results in the inefficiency in the retention of particles of colloidal nature (such as fines and fillers) [10, 11, 14]. The cellulosic fibers normally carry a negative charge when suspended in water due to the presence of ionisable
Second, cotton does not stress easily. It has an elongation break at 5 to 10 percent. Third, cotton is inelastic and also rigid fibre. Second polymer involve in ‘Babyglow’ products is thermochromics polymer. The term of thermochromics refers to materials which differ their colour intensity or transparency in response to temperature changes.