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Seam strength prediction using loop strength has been found to be more accurate and has been consistently used by researchers over last few decades. But the testing gauge length for loop strength has not been standardized as in the case of thread tensile strength. In this paper, effect of gauge length on thread tensile strength and elongation in loop form and straight form has been studied. 40 tex and 60 tex mercerized cotton and spun polyester threads are used for the study. It is observed that there is no significant change in the loop strength of the threads as the gauge length increases, whereas the tensile strength of all threads decreases with the increase in gauge length. Elongation % is found to change significantly in both loop and straight form during tensile testing. Therefore, it is concluded that loop strength tests can be carried out at any gauge length unlike tensile testing of straight threads. 相似文献
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In this study, denim fabrics were produced with yarns obtained from cotton fibers (CO), recycled cotton fibers obtained from yarn wastes (r-CO), and fibers produced from recycled PET bottles (r-PET). Enzyme and stone washing processes were applied systematically on these fabrics. Mass per unit area, breaking force, elongation at max force, tear strength, air permeability, and circular bending rigidity of fabrics were measured. The findings showed that r-CO fiber has negative effect on tear and breaking force. Breaking force, elongation at max force, and tear strength values of the fabrics increased depending on the increase in r-PET content. However, fabric handle was negatively affected associated with the r-PET ratio due to the increase in stiffness. Mass per unit area, breaking force, air permeability, and circular bending rigidity values of fabrics decreased after the washing processes. The effect of fibers on enzyme- or stone-washed fabrics showed a change according to finished fabrics. It can be said that fabrics containing r-PET are more resistant than cotton and recycled cotton in various aggressive denim washing methods such as bleaching or different washing process conditions such as rising temperature, and time. 相似文献
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牛仔服装的洗水是牛仔服新风格形成的关键工序,水洗方法的选择和水洗工艺的制定决定了牛仔服装的风格和产品档次。详细地介绍了牛仔成衣后整理洗水加工的工艺方法,包括喷砂、猫须、退浆、酵洗、酵石磨、漂洗及解漂、双氧水煮漂、高锰酸钾漂等,并具体分析了各工艺流程、工艺处方和相关的注意事项。 相似文献
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弹性材料的广泛应用更需要注重服装加工中的线缝弹性。通过针型、针密、线的张力来控制线缝弹性已不能满足当今要求。Amann&Sohne公司开发的SabaFlex是一种高弹性的缝纫线,通过试验证明是解决弹性材料加工的一种创新方法。 相似文献
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靛蓝牛仔布用酸性纤维素酶洗后,进一步作漆酶处理。试验结果表明,漆酶可以进一步改善纤维素酶返旧处理效果,有效减轻纤维素酶洗产生的靛蓝返染情况,对纯棉牛仔布强力的影响也较小。 相似文献
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服装面料的缝缩是代表面料可缝性的一个重要因素.通过实验探讨了常见服装面料各种性能,如种类、厚度、表面处理情况等对面料缝缩的影响程度. 相似文献
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牛仔水洗条件与靛蓝沾色的关系 总被引:4,自引:0,他引:4
模拟生产实际情况,收集纯靛蓝牛仔布水洗残液进行靛蓝染料的再沾色试验。通过测定白衬布的R值,定量分析沾色的程度,研究了水洗温度、pH值、纤维素酶种类、表面活性剂以及水洗时间对沾色的影响。结果表明,影响靛蓝再沾色的主要因素是纤维素酶种类、表面活性剂以及水洗时间,而温度、pH值的影响较小。 相似文献
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为有效评价服装缝纫外观质量,对国内外服装外观评价标准以及相关研究进行了梳理,分别从织物性能与缝纫条件2个方面归纳了表征服装外观质量级别的接缝外观平整度的影响因素,探讨了缝纫平整度的主观、客观评价方法,从多因子角度综合分析缝纫工艺因素对平整度的影响。认为需提高织物物理力学性能与织物缝纫褶皱等级之间的数学模型的精度,改进基于面料物理性能指标的平整度预测模型,开展曲线接缝服装部件的平整度研究,并建立服装外观质量智能评价新模型。同时从服装生产制作角度对服装缝纫平整度的研究方向进行展望。 相似文献
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聚硅酸钙铝混凝剂处理造纸中段废水 总被引:2,自引:0,他引:2
以电石渣、硅酸钠、硫酸铝、浓硫酸为原料制备了一种高效复合混凝剂聚硅酸钙铝(PACSs),并将其应用于造纸中段废水的处理。研究了加药量、PH值、沉降时间三个因素对PACSS处理造纸中段废水混凝效果的影响。研究结果表明:PACSs在加药量为57.5mg/L、PH值为7.0、沉降时间为35min的条件下,浊度、CODCr,和色度的去除率分别为96.8%,82.8%、96.4%。与传统混凝剂硫酸铝(AS)和聚合氯化铝(PAC)相比,其处理造纸中段废水的效果具有明显的优势。 相似文献
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针对服装面料缝纫性能的影响因素,利用专家估测法对各项指标权重进行处理,应用模糊综合评判理论及系统方法,建立服装面料缝纫性能评价指标体系。将预测评判理论应用到服装面料缝纫性能的评价中,可为服装企业的生产加工提供科学依据。 相似文献
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棉针织物缝纫针洞的形成及解决途径探讨 总被引:1,自引:0,他引:1
棉针织物在缝纫过程中经常出现针洞现象,文章分析了缝纫针洞产生的主要原因,并从四个方面阐述了解决的途径:选用合适的机针针尖形状及针号;调整缝纫机零部件;提高面料的柔软性;控制坯布回潮率及车间温湿度。 相似文献