Журнал текстильной науки и техники

Various methodologies were prescribed to draining control, for example, neighborhood hemostatic operators with various materials. Mechanical techniques with no synthetic response make out of stitch ligation and the utilization of gadgets, for example, tourniquet, airbag and cold weight likewise prompted.

One of the parts of nearby hemostatic specialists is cellulose. Chitohem is one of its handled mixes. Chitohem is sterile and absorbable powder that is oxidized and reconstituted from cellulose that is utilized for a wide range of dying. Chitohem hemostatic property is acted through a few mechanical and synthetic impacts, during process lessening pH can encourage enactment of coagulation course and clump arrangement.

One of the common biomaterials that could be utilized to control draining is regular silk. The advantages of biomaterials are biocompatibility and negligible poisonousness.

Silk fibroins are handled from silk strands, which are predominantly made by silkworm it is set up for clinical purposes into powder and gel. Silk strands enacted the internal way of coagulation course and acceptance of blood coagulation, lessening draining time lastly forestall blood misfortune.

Conservation of resources is not the exception in today's textile wet processing operations- it is the rule. Lower water, energy, time, chemical and labour consumption, while providing quality textile products, is the goal of all manufacturers who wish to continue in the business. Dyeing machinery and processes; especially designed to provide quality dyeing with savings in resources, are coming on stream. But still a lot of work is required to conserve the resources in wet processing especially in dyeing of knitted cotton fabric since most of the processes that are carried out recently use high amount of water, energy and chemicals. The most popular method of dyeing cotton knitted fabrics is exhaust method which requires high volume of water, high energy and chemicals.

This investigation aims at studying the dyeing of cotton knitted fabric by cold pad batch process and evaluates the feasibility of the process by comparing with the conventionally used exhaust method usually carried out at high material to liquor ratio in a soft-flow dyeing machine. The study has shown the possibilities of reducing the consumption of water, electrical and thermal energy and chemicals thereby offering cost advantage for a comparable colour value and physical properties. Besides, this process offers the reduction on the wastewater load which is the subsequent result of the overall conservation of the resources.

In this paper, knitted fabrics were finished with Zinc Oxide nano particles of 30 nm & 90 nm size. To make knitted fabrics, 100% cotton and 67/33 Polyester/Cotton ring spun yarns made with varying twist factors were selected. Knitted fabrics were finished with nano ZnO particles by Exhaust-dry-cure method and the samples were evaluated for anti-microbial efficacy. Test results indicate that in general, anti-microbial efficacy of samples increases with increase in yarn twist and decrease in ZnO particle size. Polyester cotton blend samples show better anti-microbial efficacy than cotton samples.

The dye from the Calyces Hibiscus sabdariffa (Zobo) was extracted and used as acid-base indicator for the standardization of acid and determination of the molar masses of some selected acids. The Calyces Hibiscus sabdariffa was peeled, washed and heated in an oven at 60°C. It was ground into powder and soaked in hot and cold ethanol for the extraction. Part of the extract was filtered and concentrated by subjecting the extract to slow heating which yielded 1.5 kg of the Hibiscus sabdariffa indicator. Hot and cold extracts of the Hibiscus sabdariffa were used for the standardization of acid with 0.03 M concentration of the bases. On the preliminary test carried out on basic medium, the calyces Hibiscus sabdariffa indicator turned red in acidic condition and green in basic medium, both hot and cold indicators yielded sharp and intense colours at the end points during titration processes. However, there were no colour changes for weak acid versus weak bases (H₂C₂O₄/Na2CO3 and H₂C₂O₄/B₄Na₂O₇). The mean volumes of the acids used were determined and used for the determination of the molar concentration and mass concentration of all the acids used in the research work.