Some features of contact-convective drying of viscose yarn

Conclusions Expenditures of heat in drying individual viscose textile yarns have been studied as a function of the construction of the device for condensated withdrawal from the type PNSh machines.It has been shown experimentally that a drying cylinder with siphon condensate withdrawal and a gas removal tube for removal of gases which are insoluble in the condensate reduces the consumption of heat in drying, increases the temperature of the contact surface, and aids in a more uniform temperature distribution.Translated from Khimicheskie Volokna, No. 4, pp. 35–37, July–August, 1988.     

Effect of intensive drying of viscose fibres on their properties

Conclusions Experimental data are given on the effect of moisture evaporation rate in drying viscose yarns on the strength and elongation, sorptive capacity for water vapor from the air, swelling, shrinkage, and wear resistance of yarns.It has been found that, by regulating the drying temperature, it is possible to affect the capillary-porous structure of a yarn to a considerable degree. Raising the temperature and the drying rate leads to an improvement in wear resistance and yarn elasticity. However, due to the decrease in internal surface area, one may expect a decrease in the sorptive capacity of the yarn in dyeing. A decrease in drying temperature helps increase the degree of swelling, and helps improve the absorption of dye by the yarn.Translated from Khimicheskie Volokna, No. 2, pp. 46–47, March–April, 1984.     

Prospective use of intramuscular triamcinolone acetonide in pseudogout

OBJECTIVE: To prospectively assess the efficacy of intramuscular (i.m.) triamcinolone acetonide in the treatment of pseudogout. METHODS: Fourteen patients with crystal proven pseudogout presenting with an acute attack within 5 days of onset were treated with intramuscular triamcinolone acetonide 60 mg and followed for 30 days. Patients with inadequate response were eligible for a 2nd triamcinolone acetonide injection on Day 1-2. RESULTS: Twelve patients had contraindication to nonsteroidal antiinflammatory agents (NSAID). Acute arthritis was monoarticular in 10 patients, and involved 2 or more joints in 4 patients. All patients had good clinical response to triamcinolone acetonide based on restoration of near baseline joint range of motion and joint circumference, and at least 50% improvement in patient and physician global assessment. Major clinical improvement occurred by Day 1-2 (2 patients), Day 3-4 (11 patients), and Day 10-14 (one patient). Six patients required a 2nd triamcinolone acetonide injection on Day 1-2. Toxicities were not observed. CONCLUSION: I.m. triamcinolone acetonide appears to be safe, well tolerated, and effective in the treatment of pseudogout. It may be a reasonable alternative therapy when NSAID are contraindicated, and for polyarticular attacks where intraarticular corticosteroids are impractical.     

Rheological properties of concentrated cellulose solutions in N-methylmorpholine-N-oxide

Conclusions -- Rheological properties of concentrated solutions of cellulose in N-mcthylmorpholine-N-oxide on varying the concentration of cellulose in the solution from 10 to 28% by wt. have been studied.-- It has been found that on increasing the cellulose content of the solution, the viscoelastic properties of the solution qualitatively change.-- In spinning highly concentrated solutions (cellulose content greater than 20%) an abrupt impairment takes place in stability of jet formation; this is connected with a change in supermolecular structure and elastic properties of the solution.Translated from Khimicheskie Volokna, No. 6, pp. 32–34, November–December, 1990.     

Effect of the moisture content of viscose textile yarns on their twist uniformity

Conclusions To obtain viscose textile yarns with a maximum twist uniformity, it is advisable to carry out the twisting operation at a yarn moisture content equal to or greater than 10–12% by wt.Raising the moisture content of a yarn to 17% only slightly affects twist uniformity.Reducing the linear density of the elementary filaments raises the twist uniformity of a viscose complex yarn.Translated from Khimicheskie Volokna, No. 2, pp. 40–41, March–April, 1984.