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PubMed1987

Effects of exposure to cotton dust on energy expenditure in the textile industry.

An assessment of energy expenditure has been made in 50 male textile workers and 30 male office cleaners. There was a statistically significant difference (P less than 0.001) in energy expenditure between textile workers and office cleaners amounting to 12 to 16%. While 33.3% of the textile group complained of chest disorders, none of the cleaners had such a complaint. FEV1 and FVC values of the textile workers were significantly lower (P less than 0.01) compared to those of the controls. There were no differences in body weight, lean body mass and socio-economic conditions of the two groups, however, the textile workers were younger and taller than the unexposed group. Exposure to cotton dust and respiratory and ventilatory impairments are suspected of causing a reduction in the energy expenditure of the textile workers.

Adolescent↗

PubMed2005

Effect of textile auxiliaries on the biodegradation of dyehouse effluent in activated sludge.

The textile industry is confronted with serious environmental problems associated with its immense wastewater discharge, substantial pollution load, extremely high salinity, and alkaline, heavily coloured effluent. Particular sources of recalcitrance and toxicity in dyehouse effluent are two frequently used textile auxiliaries; i.e. dye carriers and biocidal finishing agents. The present experimental work reports the observation of scientific and practical significance related with the effect of two commercially important textile dye carriers and two biocidal finishing agents on biological activated sludge treatment at a textile preparation, dyeing and finishing plant in Istanbul. Respirometric measurements of the dyehouse effluent spiked with the selected textile chemicals were carried out for the assessment of the "readily biodegradable COD fraction" of the wastewater. The respirometric data obtained to visualize the effect of the selected textile auxiliaries on biomass activity was evaluated by an adopted activated sludge model. Results have indicated that the tested biocides did not exert any significant inhibitory effect on the treatment performance of the activated sludge reactor at the concentrations usually encountered in the final, total dyehouse effluent. The situation with the dye carriers was inherently different; one dye carrier appeared to be highly toxic and caused serious inhibition of the microbial respirometric activity, whereas the other dye carrier, also known as the more ecological alternative, i.e. the "Eco-Carrier", appeared to be biodegradable. Finally, the respirometric profile obtained for the Eco-Carrier was described by a simplified respirometric model.

Biodegradation, Environmental↗

PubMed2001

Regulating colored textile wastewater by 3/31 wavelength ADMI methods in Taiwan.

The wastewater from textile dyeing facilities is difficult to treat satisfactorily because of high compositional variability and high color intensity. To reduce colored effluents discharged into watercourses, the government of Taiwan adopted the Effluent True Color Standard in 1998. The true color discharge limit is 400 American Dye Manufactures Institute (ADMI) units. The adopted analytical method is the ADMI Tristimulus Filter Method (3 wavelength (WL) method), and the 31 WL ADMI method might be also adopted as an alternative for color value measurement. The refractory nature of textile dyes and the introduction of this new regulation present an environmental challenge to the Taiwanese textile industry. The main objectives of this study were to (1) evaluate the efficacy of current wastewater treatment systems for controlling the colored textile wastewater discharges, and (2) evaluate the correlations between 3 and 31 WL ADMI methods. Ten representative textile wastewater treatment facilities employing biological and chemical coagulation treatment technologies were selected to perform a 10-consecutive-day effluent sampling and analysis. Results show that a significant difference between 3 and 31 ADMI methods was observed. These two ADMI methods cannot be substituted for each other, and the discharge standard should be determined based on the selected testing method. Investigation results also suggest that the commonly used wastewater treatment technology (biological + chemical coagulation) fails to effectively remove dye from the colored textile wastewater. Sodium hypochlorite (NaOCl) addition was applied by most facilities as the temporary post-polishment step to comply with the color discharge standard.

Chemistry Techniques, Analytical↗

PubMed2000

Disperse blue dyes 106 and 124 are common causes of textile dermatitis and should serve as screening allergens for this condition.

BACKGROUND: Textile dye dermatitis is frequently undiagnosed because clinical awareness is low and because of the absence of good screening allergens in standard patch test series for this type of contact dermatitis. OBJECTIVES: To determine the incidence of textile dye allergy in patients with problematic eczemas evaluated at a contact dermatitis clinic, and to determine the incidence of allergic contact dermatitis to diperse blue dyes in these patients. METHODS: We conducted a retrospective study of 788 patients who were patch tested to either the North American Contact Dermatitis Group (NACDG) Standard Series or the European Standard Series, in addition to other relevant series. The Chemotechnique textile series was utilized in 271 patients (28%). RESULTS: Forty patients reacted positively to 1 or more textile dyes, the majority reacting positively to Disperse Blue 106 (33 of 40; 82.5%) and to Disperse Blue 124 (32 of 40; 80%). Ten of 11 tested patients reacted to their own clothing, 9 of whom reacted to the blue/black 100% acetate or 100% polyester liners in their garments. CONCLUSIONS: Textile dye allergy is more common than previously reported. It can cause marked dermatitis and widespread autoeczematization reactions. The most frequent allergens are Disperse Blue 106 and 124, which are frequently found in the 100% acetate and 100% polyester liners of women's clothing. We recommend that Disperse Blue 106 or 124 serve as the screening allergen for textile dye dermatitis.

Adult↗

PubMed2001

Occupational contact dermatitis to textile dyes in airline personnel.

BACKGROUND: Reports of textile dye allergic contact dermatitis are becoming frequent in the literature. Occupational exposure to textile dyes has been reported, but less frequently. OBJECTIVE: To report 2 cases of allergic contact dermatitis to Disperse Blue dyes 106 and 124 occurring in airline personnel. METHODS: The patients were patch tested to the European or North American standard series, a textile dye series, and 1 patient was tested with pieces of textile from an airplane seat. RESULTS: Patch testing elicited in both patients a 2+ reaction to Disperse Blue dyes 106 and 124, and a 1+ reaction to paraphenylenediamine in one patient. CONCLUSION: We describe 2 cases of occupational textile dye allergy occurring in airline personnel. Both cases showed the utility of Disperse Blue dyes 106 and 124 to serve as the screening allergens for textile dermatitis. Mandatory uniforms might be an occupational hazard in certain professions.

Aircraft↗

PubMed2004

Mortality in an Australian cohort of textile workers.

BACKGROUND: Workers in the textile industry may be exposed to textile dusts, a wide range of chemicals and electromagnetic radiation. AIM: To investigate the risk of mortality in a cohort of textile workers and examine whether specific occupational exposures were associated with mortality. METHOD: Data on members and former members of a textile industry union were extracted from membership cards and matched with the National Death Index to obtain date and cause of death. Exposure to 31 different substances was assessed using a specifically designed job exposure matrix that consisted of profiles of exposures in 11 occupational titles. These profiles were modified according to individual circumstances. Standardized mortality ratios (SMRs) were computed comparing the cohort to the Australian population and Mantel-Haenszel estimates of the rate ratios were computed comparing exposed with unexposed for each of the substances. RESULTS: There were 113 deaths in the cohort of 7684 workers. Male and female textile workers had similar risks of death from any cause, cancer or cardiovascular disease to the general Australian population. Male workers had an increased risk of death from injury (SMR = 157, 95% confidence interval 113-213). There were no statistically significant increases in risk with particular occupational exposures. CONCLUSION: Male textile workers are at higher risk of death from injury.

Adult↗

PubMed2006

Occupational risk factors for pancreatic cancer among female textile workers in Shanghai, China.

OBJECTIVES: To investigate whether occupational exposures to dusts and chemicals in the Shanghai textile industry are associated with risk of pancreatic cancer. METHODS: A case cohort study nested in a cohort of 267,400 female textile workers in Shanghai, China was conducted among 180 incident pancreatic cancer cases and an age stratified randomly selected comparison subcohort (n = 3188). A complete occupational history of work in the textile industry was obtained for each woman, and was linked to a job exposure matrix developed for the textile industry to estimate exposures to specific dusts and chemicals. Cumulative exposures to cotton dust and endotoxin were reconstructed from historical and contemporaneous measurements. RESULTS: After adjusting for smoking status, a trend of decreasing risk of pancreatic cancer was observed for increasing cumulative exposures to cotton dust and endotoxin with a lag of 20 years. The hazard ratios for women cumulatively exposed to >143.4 mg/m3 x years of cotton dust and >3530.6 EU/m3 x years of endotoxin were 0.6 (95% CI 0.3 to 0.9) and 0.5 (95% CI 0.3 to 0.9), respectively, compared to unexposed women. There was little evidence that exposures to other textile dusts and chemicals were associated with risk of pancreatic cancer. CONCLUSIONS: Occupational exposure to cotton dust and endotoxin in the textile industry may have reduced risks of pancreatic cancer in this cohort. These associations should be replicated by others before making a firm conclusion of their possible effects on pancreatic cancer.

Adult↗

PubMed2006

Antimicrobial textiles - evaluation of their effectiveness and safety.

The number of biofunctional textiles with an antimicrobial activity has increased considerably over the last few years. Whilst in the past it was predominantly technical textiles which had antimicrobial finishes, in particular to protect against fungi, nowadays textiles worn close to the body have been developed for a variety of different applications as far as medical and hygienic tasks. Together with the increase in new antimicrobial fibre technologies and possibilities in the hygienic and medical applications, the demand for proper test systems to evaluate the effectiveness as well as the safety of antimicrobial textiles rose. With the aid of agar diffusion and suspension tests, it is possible to record qualitative and quantitative data on the in vitro 'degree of effectiveness' of antimicrobial textiles. Test systems based on testing the biocompatibility of medical devices are suitable to evaluate the safety of antimicrobial textiles.

Anti-Infective Agents↗

PubMed2006

Antimicrobial textiles, skin-borne flora and odour.

Along with climate and physical activity, textiles have an effect on sweating and the development of odours. Accordingly, textiles inadequately optimized in terms of clothing technology as a result of poorly cut structures or poor materials result in increased sweating and odour. However, the development of body odour itself cannot be avoided, even with optimally designed clothing. Therefore new textiles, 'treated with antimicrobial agents', have been developed, with the aim of reducing odour by decreasing the number of germs on the skin. From the scientific point of view, the interactions between textiles, sweat, skin and skin flora are extremely complex. For this reason, this article explains in more detail the basic principles of odour formation resulting from sweat and how this can be influenced by textiles treated with antimicrobial agents. With reference to the results of recent research, the article looks into questions of how textiles treated with antimicrobial agents have an effect on populations of skin bacteria.

Anti-Infective Agents↗

PubMed2006

Coated textiles in the treatment of atopic dermatitis.

Atopic dermatitis (AD) is a chronic inflammatory skin disease with increasing prevalence over the last few decades. Various factors are known to aggravate the disease. In particular, wool and synthetic fabrics with harsh textile fibres, aggressive detergents and climatic factors may exacerbate AD. Cutaneous superinfection, particularly with Staphylococcus aureus, is also recognized as an important factor in the elicitation and maintenance of skin inflammation and acute exacerbations of AD. The severity of AD correlates with S. aureus colonization of the skin. Beside the treatment of AD patients with creams and emollients, new developments in the textile industry may have therapeutic implications. Silk or silvercoated textiles show antimicrobial properties that can significantly reduce the burden of S. aureus, leading to a positive effect on AD. Silver products have been used as wound dressing, whereby silver has antiseptic properties, and drug resistance is hardly found. Padycare textiles consist of micromesh material containing woven silver filaments with a total silver content of 20%. In vitro studies of these silver-coated textiles demonstrated a significant decrease in S. aureus and Pseudomonas aeruginosa as well as Candida albicans. Silk has been increasingly implemented in medical treatment of AD thanks to its unique smoothness that reduces irritation. Silk can be coated with antimicrobials (Dermasilk). The combination of the smoothness of silk with an antimicrobial finish appears to make an ideal textile for patients suffering from AD.

Dermatitis, Atopic↗

PubMed1991

Exposure-related declines in the lung function of cotton textile workers. Relationship to current workplace standards.

To evaluate the effectiveness of the current workplace standards in preventing chronic health effects from cotton dust exposure, a 5-yr longitudinal study of a large multimill population of cotton textile and synthetic process workers, employed at a major U.S. textile company, was conducted. To control for and assess the effect of type of work area on annual change in lung function, we limited the analysis to those 1,817 subjects who, throughout their textile work history at the company, worked exclusively in cotton yarn manufacturing or slashing and weaving, or in synthetic textile mills. The expected effect of smoking on average annual change in lung function was demonstrated for both cotton and synthetic workers. Despite lower overall dust exposure, cotton yarn workers exhibited steeper annual declines in lung function than did workers in slashing and weaving; this difference persisted within each smoking category, indicating a dust potency effect. There were mill differences in annual change in lung function among cotton workers, potentially masking an exposure effect. A smoking-work area interaction persisted after adjusting for mill differences, with the largest annual declines observed in cotton yarn workers who smoke. A significant dose-response relationship was seen in cotton yarn manufacturing between annual declines in FEV1, FVC, and FEF25-75 and average exposure by mill, and the larger declines were found in mills using the highest percentage and lowest grade of cotton. Synthetic textile workers had larger declines than did cotton textile workers, which were not explained by smoking or duration of employment. Unrecognized and unmeasured causative exposures or selection bias could explain this result.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

PubMed1987

Decreased risk of lung cancer in the cotton textile industry of Shanghai.

The relationship between lung cancer risk and work in the cotton textile industry was investigated in a large population-based case-control study in urban Shanghai, where the industry is a major employer of men and women. Personal interviews obtained occupational, smoking, and other information from 1405 newly diagnosed lung cancer cases and 1495 controls. A significantly low risk of lung cancer was associated with cotton textile employment [odds ratio (OR) = 0.7,95% confidence interval (CI) = 0.6-0.9]. In men, the decreased risk was observed among both smokers (OR = 0.7, 95% CI = 0.5-1.1) and nonsmokers (OR = 0.3, 95% CI = 0.1-1.0). In women, the risk was also decreased regardless of smoking status (OR = 0.8, 95% CI = 0.4-1.6 among smokers; OR = 0.9, 95% CI = 0.6-1.2 among nonsmokers). In both sexes, the reductions in risk tended to be greater for lung cancer cell types other than adenocarcinoma. Low risks were found regardless of occupations within the cotton textile industry; the OR for workers in textile processing who potentially had greater dust exposure was 0.8 (95% CI = 0.6-1.2), whereas the OR for those in other industry jobs was 0.7 (95% CI = 0.4-1.0). There was little difference in risk according to self-reported exposure to textile dust, and no clear trend with duration of employment or dust exposure. Reasons for the reduced risk of lung cancer in cotton textile workers without a dose response are unclear, although several methodological explanations were considered. The findings, however, appear consistent with prior epidemiological studies and are interesting in light of speculation about tumor-inhibitory factors, such as bacterial endotoxins, that are found in dusts from cotton and other fiber crops.

Adult↗

PubMed1984

Characterization of airborne cotton dust concentrations in the non-textile cotton industry.

Workers in the "non-textile" cotton industry breathe a dust which is similar to the dust in the cotton spinning and weaving or "textile" industry. This exposure prompts the question of byssinosis prevalence and other respiratory disease in the non-textile cotton industry. NIOSH has completed a cross-sectional medical and environmental study evaluating the prevalence of byssinosis in five segments of the non-textile cotton industry. A total of 92 non-textile cotton facilities were evaluated, including cotton gins, cotton classing offices, cottonseed oil mills, cotton compress-warehouses, and waste utilization plants. This paper presents the results of the measurements of cotton dust levels and particle size distributions in these segments. Average elutriated dust concentrations for individual plants ranged from 101 to 2050 micrograms per cubic meter of air (micrograms/m3) in 35 cotton gins, 81 to 376 micrograms/m3 in 13 classing offices, 502 to 2041 micrograms/m3 in 18 cottonseed oil mills, 39 to 831 micrograms/m3 in 13 compress-warehouses, and 237 to 3968 micrograms/m3 in 13 waste utilization facilities. Results tend to be lower than those reported in the literature for non-textile operations.

Dust↗

PubMed2006

[Microbiological assessment of efficiency of antibacterial modified textiles].

The application of antimicrobial finishes to textiles can prevent bacterial growth and might reduce the risk of infection resulting from textiles that are contaminated with pathogenic microorganisms in hospitals. The main aim of this study was the determination of the antibacterial activities of chemical treatments applied to textiles. Comparison of testing methods assessing antibacterial efficiency was conducted. These studies were performed in order to select the right methods of evaluating the bactericidal and bacteriostatic activity of antibacterial modified textiles. Antibacterial modified polyester fibres and fabrics made from cotton (100%) applied with quaternary ammonium salts were tested. Textiles treated with bacterial agent were compared with reference samples (not treatment with the disinfectant). The Standards ISO/DIS 20645/2002 andAATCC 147/ 1998 suitable for assessment of bacteriostatic activity were applied. For assessment of bactericidal activity ATCC Test Method 100-1998 were applied. The bacterial strains recommended by the above standards such as: Klebsiellapneumoniae (ATCC 4352),Staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 11229) was tested. Additionally Pseudomonas aeruginosa (ATCC 9027) was examined. Tested fibres did not show antibacterial activity. Samples of antibacterial textiles were washed through laboratory laundering cycles. Residual antimicrobial activity was measured after washes. The fabric showed antibacterial activity against K. pneumonia and S. aureus. The examined specimens showed no bacteriostatic activity against E. coli and P. aeruginosa. The results obtained in two applied quality methods were comparable in assessing antibacterial activity of finishes. Reduction of bacteria in quantitative method was 90%. In quality method ISO/DIS 20645/2002 effectiveness of the treatment against K. pneumonia was retained up to five laundering cycles and against S. aureus--twenty laundering cycles.

Anti-Bacterial Agents↗

PubMed1986

[Hygienic study and evaluation of textile materials with reduced combustibility with reference to the use of the new anti-inflammable preparations Pyrofix 2 and Torflam].

The new anti-flammable preparations, proposed by the Higher Chemical Technology Institute (Sofia), were studied, namely: Pyrofix 2--for treatment of textile materials and Torflam--for production of anti-inflammable polyester fibres. The following parameters were studied: skin-irritating and skin-sensitizing effect of both preparations, skin toxic effect of Pyrofix 2 and migration of chemicals from the anti-inflammable textile materials (from the composition of the preparations used). The results obtained revealed the absence of skin-irritating and skin-sensitizing effect of both preparations and cumulative dermal toxicity of Pyrofix 2. The textile materials with reduced combustibility are chemically stable and do not release compounds in the contact aqueous medium, imitating the underclothes space. Formaldehyde from recipe for the treatment of Pyrofix 2 migrates in the air environment. In conclusion, Pyrofix 2 could be applied for the final anti-inflammable treatment of the textile materials for industrial needs, working garments and everyday textile (with the elimination of formaldehyde compound from the recipe). Torflam could be used in the production of anti-inflammable polyester fibres for textile materials intended for industry and everyday life without immediate contact with the skin of the consumers.

Animals↗

PubMed2003

Microflora involved in textile dye waste removal.

Textile dyes are heavily used in factories for coloring different cloth materials. This work was designed to identify microorganisms capable of removing textile dyes, either by biodegradation or by biosorption. We expected to isolate microorganisms adapted to high dye concentrations from sites near textile industry complex. An experiment was conducted to study the efficiency of the isolates in removing textile dyes. The tested dyes were used as carbon and nitrogen sources for isolation of soil and/or water microorganisms capable of removing textile dyes wastes from factories effluent. The results indicated the low efficiency of both bacteria and actinomycetes in clean-up the effluent from the waste dyes in 10-21 days. On the other hand six fungal isolates were obtained by plating factory effluent on Martin's medium and media containing dyes as the sole source of carbon and nitrogen for growth. These isolates fell in two genera, Aspergillus and Trichoderma. Results of these studies revealed the potential capacity of these fungi to decolorize the tested dyes in comparatively short time (2-24 hours) indicating strong efficiency of dye bioremediation by the fungal isolates. Since the process involved is mostly fast interaction between the fungal mycelium and the dye in the media, the possible mechanism could be based on a biosorption of such chemicals on the intact fungal biomass, rather than direct biodegradation of the compounds.

Absorption↗

PubMed1987

A case-referent study of lung tumors in non-asbestos textile workers.

A case series in the Province of Florence showed an increased risk of mesothelioma in textile workers (nonasbestos) and a survey of working conditions confirmed potential exposure to asbestos. In order to investigate the risk in textile workers, including some specific job titles, a case-referent study on lung tumors was carried out. The lung cancer cases included 441 males with histologically confirmed primary lung cancer during the period 1980-1983. Referents included 1,075 males selected from two hospitals and matched for age, sex, and smoking habits. Those who had "ever worked" in the textile industry showed an adjusted odds ratio of 1.52 (95% C.I. 1-2.25) compared with other "industrial workers." This moderately increased risk is maintained in selected jobs in the textile industry. An analysis of the modifying effect of time factors showed an increased risk in the period of 15-35 years from the date of first employment in the industry. The results support the hypothesis that a probable risk of lung cancer in textile workers in the Prato area was related to asbestos exposure.

Aged↗

PubMed2001

Determination of wastewater LC50 of the different process stages of the textile industry.

Textile plants are very important sources of toxic discharges. The purpose of the research described in this paper was to use bioassays with daphnids to determine the LC50 values of textile wastewater samples taken from different stages of the finishing textile industry. Toxicity due to dyeing, chlorination, and the absence of adequate physicochemical conditions for daphnid survival were considered. Wastewater samples corresponding to each process stage were collected at five finishing textile industries and assayed according to previously published procedures. The sensitivity of daphnids to chemicals was assayed using sodium dodecyl sulfate and was similar to other reports (14.6+/-6.8 vs 14.5+/-2.3 mg/L). All effluents from the five company samples were toxic in terms of LC50 and exhibited very high toxicity with acute toxicity unit (ATU) levels between 2.2 and 960, indicating that the five textile industries produced toxic water. The sensory characteristics indicated that the dyes contributed to overall sample toxicity at all process stages. The most toxic contaminant seemed to be ClO- at levels between 0.2 and 6.8 mg/L, suggesting that further research is needed on the economic costs of stage-by-stage and total effluent treatments.

Animals↗