Search results

Bales of cotton run through the gins and textile mill instruments, stick to them and make it cumbersome for the ginning mill workers. This is so because more time and money have to be invested in cleaning these instruments. The stickiness of cotton causes health hazards to the workers, decreases the yarn quality and economic loss to the textile industry. The effect of cotton stickiness on textile ginning, various methods for cotton stickiness detection and the steps for reduction are discussed.

The different methods that are available for detecting and measuring cotton stickiness are described. The sugars that cause stickiness are either of plant origin (physiological sugars) or from the feeding insects (entomological origin). The methods for stickiness detection and reduction are discussed under physical, chemical and biological categories.

This review suggests possible ways to mitigate cotton stickiness.

One of the major issues of the textile industry is honeydew-contaminated cotton stickiness. However, there are few papers on detection methods for analyzing honeydew cotton stickiness along with the approaches to reduce stickiness. This paper summarizes different methods along with a study for detection as well as reduction of cotton stickiness.

The textile sector struggles with cotton stickiness from honeydew contamination. It hurts agriculture and marketability. This study aims to examine how bacterial enzymes could reduce honeydew-contaminated cotton adherence in textile businesses sustainably.

Enzyme was extracted from bacteria isolated from the fermented bamboo shoots “Lung siej”. The enzyme was tested for α-glucosidase using p-nitrophenyl-α-D-glucopyranoside as a substrate. Design of experiments determined enzyme activity temperature and reaction time. Laboratory-prepared artificial honeydew was added to ginning mill cotton to show honeydew contamination. After enzyme treatment, sticky cotton was tested for microscopic examination, ultraviolet (UV), Benedict’s, Elsner colorimetric, high volume instrument (HVI) and viscosity tests.

The bacterial isolate is characterized as Lysinibacillus sp. as confirmed by 16S rRNA gene sequencing. The enzyme extracted was identified as α-glucosidase. The ideal temperature and reaction time for enzymatic activity were 32 °C and 35 min, respectively, using central composite design. The microscopic examination, UV test, Benedict’s test, Elsner colorimetric test, HVI test and viscosity test showed that bacterial enzyme treatment reduced cotton fiber adherence.

Although few patents have examined the effect of yeast enzymes, to the best of the authors’ knowledge, a bacterial enzyme is investigated for the first time to reduce the adhesion of honeydew-contaminated cotton.

People involved in the cotton industry, from growers to spinners, have been concerned about the problem of stickiness encountered during cotton processing from fibres to yarn. Many methods have been successfully developed to identify and measure stickiness and also to reduce the effect of these contaminations. Yet due to the poor fundamental scientific knowledge regarding the mechanisms of sugar adhesion on fibres, the major part of these methods is empirically based. Today, gaining knowledge about stickiness seems impossible without the help of a fundamental study on the accurate composition of honeydew and on the mechanisms of honeydew adhesion. This paper introduces a new quantitative analysis method for honeydew adhesion behaviour measurement. Adhesion measurement has been carried out on both individual sugar and sugar mixture and it reveals a strong influence of moisture content on adhesion energy and a weak influence of the type of metallic surface on adhesion energy.

The purpose of this paper is to optimize the linear densities of polyester yarn and filament for inner layer and elastane for middle layer with cotton yarn outer layer in plain knitted plated structure for hot and dry environment clothing.

Three levels of polyester yarn linear densities (11.1, 8.4 and 5.6 Tex), filament linear densities (0.8, 1.55 and 2.3 Decitex) and elastane (0, 4 and 8 percent) with 14.75 Tex cotton yarn have been used to knit 15 single jersey plated fabrics based on Box and Benhens experimental design with same loop length. Three cotton–elastane core-spun fabrics were also produced. All the fabrics were analyzed for moisture and ergonomic comfort properties and wet fabric coefficient of friction.

The increase in elastane content and yarn linear density decreases water vapor and air permeability; the increase in filament linear density decreases wicking rate and water absorbency. The optimum solution is 5.55 Tex polyester yarn of 0.8 Decitex filament as inner layer and 14.75 Tex cotton yarn as outer layer which gives good heat and moisture transfer without stickiness.

The implication of this paper is to study thinner polyester, polypropylene and polyethylene fabrics with more micro pores as skin contact layer for quicker heat and moisture transfer.

Outward wickability of sweat from the skin is the prime requirement of all skin contact layer fabrics.

It shifts the social attitude of most comfortable fabric to polyester–cotton plated for hot and dry climate.

This paper employs a more practical method for the selection of fabric.

Describes an investigation into the sensation of wetness and dampness by both subjective and objective measurements. When fabric has a high water content, the subject felt a strong feeling of stickiness. This stickiness was evaluated objectively by measurement of the friction between the wet fabric and artificial skin. The speed of moisture transmission measured by the simulation test is one of the parameters used to evaluate the clammy feeling.

Sports garments play an important role in the well-being of an athlete by protecting the wearer from changing environmental conditions and providing a comfortable feel. Clothing requirements have changed in recent years and demand for apparel with a higher comfort performance has been rising. Hence, the purpose of this study is to explore consumers’ expectations and perception of comfort and to examine how different textiles are perceived by consumers to provide useful knowledge that allows to engineer comfort into fabrics and sports garments.

This online survey comprised 292 respondents, classified by sex, age, nationality and physical activity. The respondents were asked a total of 18 questions through the Bristol Online Survey tool to explore expectation, perception and preference of clothing comfort, specifically of sportswear.

Fit and comfort are closely linked together, both forming part of the clothing comfort concept. When purchasing garments online, the haptics of fabrics were identified as a crucial missing parameter. However, priorities of attributes within the concept varied according to the person’s sex and nationality. Women put more emphasis on garment fit and showed a higher need for tactile input, whereas men prioritised physiological comfort descriptors, i.e. properties which facilitate thermoregulation. Furthermore, there is an increased importance of physiological comfort parameters for people exercising for 10 or more hours per week. Finally, it was possible to identify common associations and preferences for textile materials (cotton, polyester, cotton/polyester blend and wool). However, consideration should be taken concerning sex and nationality.

Sex and nationality are parameters modulating the clothing comfort concept and the conceptualised feel of materials. Therefore, the sex and nationality of the end-consumer should be considered during the development phase of sports garments and particular attention should be given to the targeted market in which these will be sold.

Many old coal‐mining corporations in East China were previously flatlands and farmlands in a dominant position. After mining, the agricultural ecosystem deteriorated severely, and problems such as farmlands subsiding, bridges and culverts breaking, farmhouses damaged by crevices and so on, can be observed everywhere. Agricultural ecosystem rehabilitation (AER) becomes an important issue for sustainable development in this area because land subsidence impacts on agricultural production, and farmers who lose prime lands become an unstable factor with regard to social stability. In this paper the Xuzhou coal mine area is analyzed as an example. This paper poses the engineering reclamation measures and reclaimed land use forms. Non‐filling methods, supplemented with filling methods, are main engineering measures for AER. Reclaimed land use types include planting vegetable, wheat, rice, cotton, soybean, and treating the foundations used for new village sites. This paper introduces the experimental effect of drainage, construction methods and planting in the Tongshan reclaimed area.

IN the October number of THE BRITISH FOOD JOURNAL, while disclaiming any intention of supporting or opposing any political party or any section of politicians, we stated our opinion that the fiscal policy which has been outlined before the country by Mr. CHAMBERLAIN is eminently one which requires to be put to the test of experiment and which cannot be profitably argued about upon theoretical bases. In connection with the allegation that by following the policy of leaving our doors open to those who shut their own doors in our faces, we are able to obtain goods at less expense than would be the case under other conditions, we pointed out that it would be well for the public to consider whether that which is so cheap may not also, to a great extent, be particularly nasty. The desirability of considering the nature and quality of so‐called “ cheap ” foods, supplied to us by various countriies without restriction, does not, as yet, appear to have entered the heads of those who have made matter for political controversy out of what is, in reality, a scientific question. The facts are not sufficiently known, or, in consequence of the proverbial carelessness of our generation, are not clearly appreciated. And yet, as it seems to us, some of those facts are of paramount importance to those who desire to study the subject in a calm and scientific manner and outside the region of political turmoil. What do we get from the various countries whose producers and merchants are free to “dump” their goods in this country without the restrictive influence of duty payments? Great Britain has made it known to all the world that “Rubbish may be Shot Here,” and we venture to say that the fullest advantage has been taken, and is taken, of the permission. From America, France, Germany, Italy, Holland, and Belgium, in fact from every producing country—including now even Russia and Siberia, we get inferior or scientifically‐adulterated articles which are sold to the public “ cheap.” Milk and butter scientifically adulterated, or produced under improper conditions in such a way that their composition becomes the same as physically‐adulterated products, condensed “milk” minus cream, cheese practically devoid of fat, or “ filled ” (as it is called) with margarine, all reach us in enormous quantities from most of our near and dear neighbours. Butter and certain wines and beers, loaded with injurious ‘ preservative” chemicals and the sale of which is prohibited in the country of production, are sent to the easily‐entered British “dumping‐ground” for the delectation of its confiding inhabitants. “Tinned” foods prepared from raw materials of inferior character or of more than questionable origin, are copiously unloaded on our shores to feed our complaisant population,—instead of being consigned to the refuse destructors which should be their proper destination; while, every now and then, when something worse than usual has been supplied, representative specimens of this delectable class of preparation are proved to have caused outbreaks of violent illness—those so‐called ptomaine poisonings which, of late years, have increased in number and in virulence to so distinctly alarming an extent. Flour made from diseased or damaged grain, or itself “ sick ” or damaged, and so “ processed ” as to mask its real condition; flour, again, adulterated with other and inferior meals, are “ goods ” supplied to us in ample amount for the benefit of those whose mainstay is some form of bread or flour‐food. The list might be continued literally ad nauseam.

Sleep quality, a crucial parameter for health and life performance, is affected by mattress components; particularly mechanical and thermal comfort management ability of the upper layers. The aim of this study is to investigate effects of quilted mattress ticking fabric material (polyester, polypropylene, viscose, lyocell and their blends) on thermal comfort of the bedding system by objective and subjective measurements.

The permeability (air and water vapour), heat transfer, water absorption, transfer and drying behaviours of knitted quilted fabrics which influence the thermal comfort of the bedding system were investigated. Subjective coolness and dampness evaluations were gathered by forearm and hand-palm tests to provide more realistic discussion in light of fabric characteristics.

According to the results, polypropylene can be suggested for winter use with its higher air and water vapour permeabilities, lower thermal absorption and conductivities and warmer evaluation results. Lyocell can be suggested for summer use with also high permeabilities, higher thermal absorption and conductivities and cooler evaluation results. Polyester and viscose may also be considered for winter and summer in turn as a result of thermal feelings they create.

In addition to fabric thermal, permeability, liquid absorption and transfer properties, this study also includes subjective coolness and dampness evaluations which can provide realistic results regarding the coolness-to-touch and liquid transfer performances of mattress ticking fabrics. The relationships among objective and subjective data were investigated and the proposed subjective evaluation techniques can be used for different products.

The paper provides a detailed historical account of Douglass C. North's early intellectual contributions and analytical developments in pursuing a Grand Theory for why some countries are rich and others poor.

The author approaches the discussion using a theoretical and historical reconstruction based on published and unpublished materials.

The systematic, continuous and profound attempt to answer the Smithian social coordination problem shaped North's journey from being a young serious Marxist to becoming one of the founders of New Institutional Economics. In the process, he was converted in the early 1950s into a rigid neoclassical economist, being one of the leaders in promoting New Economic History. The success of the cliometric revolution exposed the frailties of the movement itself, namely, the limitations of neoclassical economic theory to explain economic growth and social change. Incorporating transaction costs, the institutional framework in which property rights and contracts are measured, defined and enforced assumes a prominent role in explaining economic performance.

In the early 1970s, North adopted a naive theory of institutions and property rights still grounded in neoclassical assumptions. Institutional and organizational analysis is modeled as a social maximizing efficient equilibrium outcome. However, the increasing tension between the neoclassical theoretical apparatus and its failure to account for contrasting political and institutional structures, diverging economic paths and social change propelled the modification of its assumptions and progressive conceptual innovation. In the later 1970s and early 1980s, North abandoned the efficiency view and gradually became more critical of the objective rationality postulate. In this intellectual movement, North's avant-garde research program contributed significantly to the creation of New Institutional Economics.