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为提高环锭纺成纱质量,提出一种机械预捻环锭纺纱方法,并对其原理及预捻装置的方案设计进行介绍.通过纺纱试验探究了捻度对成纱强力和纱线毛羽性能的影响,并利用显微镜观察了预捻环锭纱的表面形态,同时测量了预捻环锭纺纱过程中的加捻三角区宽度,证明了预捻环锭纺的有效性.试验结果表明:机械预捻环锭纺在提高成纱强度、减少纱线毛羽方面效... 相似文献
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中空纱强力影响因素的探讨 总被引:1,自引:1,他引:0
探讨中空纱强力影响因素及其规律.选择芯纱含量、包芯纱捻度、芯纱毛羽及包芯纱捻向作为影响因素,采用正交试验方案并进行方差分析,判别四因素对中空纱强力影响的显著程度;并进一步分析了各影响因素与中空纱强力的关系.结果表明:在芯纱为有捻短纤纱的情况下.包芯纱捻向、芯纱含量对中空纱强力有显著影响;包芯纱捻度、芯纱毛羽时中空纱强力影响不显著,但芯纱毛羽对中空纱的中空结构稳定性有一定影响. 相似文献
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叙述了不采用水溶性维纶的弱捻提花毛巾的研制背景、制作原理以及在外观、性能和生产过程中能耗、物耗、污染物排放等方面与传统无捻弱捻提花毛巾的对比,在保持传统提花毛巾优良性能的同时,降低了能耗、物耗,降低了生产难度和污染物的排放量。 相似文献
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探讨假捻集聚纺纱线的性能特点.测试了不同捻系数假捻集聚纱线的各项主要性能,并与同捻度的传统环锭纱线进行了对比试验分析.结果表明:捻系数为280的假捻集聚纱线.其条干CV值均比同捻系数的传统环锭纱差,而纱线的毛羽指数、断裂强度和断裂伸长率也只有在假捻器转速比适当的条伴下才好于传统环锭纱.而当捻系数为360时,假捻集聚纱线的条干CV值和断裂强度只有在假捻器转速比较低时才好于传统环锭纱,而毛羽指数和断裂伸长率则可在较大的假捻器转速比范围内优于环锭纱. 相似文献
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提花毛巾采用单面起毛组织和平纹色格组织相结合的接结双层组织,为了使织物的手感更加柔软,毛经采用了无捻纱.文中详细描述了双层无捻提花的设计及利用JCAD软件进行意匠及工艺处理的全过程. 相似文献
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低捻转杯纱及毛巾产品的试制与开发 总被引:1,自引:1,他引:0
介绍了在中频转杯纺纱机上纺制低捻转杯纱及在有梭织机上织造低捻转杯纱纯棉毛巾和染整的工艺流程,取得了一系列生产实践参数。为开发、生产低捻转杯纱提供了范例及生产依据。 相似文献
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采用阳离子分散松香胶酸性施胶工艺生产玻璃垫纸,在生产过程中产生黏缸,造成纸面纤维拔起纸面起毛。通过黏缸的原因分析进行了处理,提高了品质,减小操作难度,保证了批量生产的稳定性;在浆内加入少量A K D中性施胶剂,有效解决了玻璃垫纸生产过程中的黏缸造成的纸面起毛问题,满足了用户的使用要求。 相似文献
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Fabric compression is a decrease in intrinsic thickness with an appropriate increase in pressure. The compressibility of the terry fabric depends on fibre properties, yarn parameters, weaving parameters, loop length, loop density, loop geometry and post-weaving treatments. In this research, all the factors responsible for fabric compression have been studied. It is observed that loop density, loop length, loop-shape factor, pile yarn twist, pile yarn count, fibre length and pile yarn structure have a significant effect on the compression behaviour of the terry fabric. With increase in the loop-shape factor, loop length and loop density, the linearity of compression curve, resilience increases and specific compression energy reduces which depict that the fabric is getting better in terms of softness to touch. It is also observed that pile yarns produced from ring spinning, zero twist, MCU-5 cotton, porous yarn and finer yarn produce better terry fabric in terms of compression behaviour and surface properties. The loop geometry modelled in the form of shape factor correlates with the compression of the fabric. The research also helps to design a towel by controlling loop geometry. 相似文献
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The twist angle is an important parameter of the yarn which determines the degree and shape of the filament’s deformation produced along their length. So, in this paper, a 3D numerical modelling of filaments assemblies has been developed. The twist behaviour of the multifilament was simulated using ABAQUS finite element package by modelling the yarns as 3D continuum elements. The distribution of filament helix angle according to the radial position of the yarn is evaluated. Results show that the helix angle draws near zero in the yarn axis but does not fall to zero in presence of migration, and becomes bigger as the filaments are positioned on the surface. Moreover, the twist angle is calculated for different twist level which proves that twist angle is highly affected by torsion level. The target of the research was to establish a relationship between twist angle, twist value and yarn linear density for a series of models varying in the filament radius, twist value and filament number. 相似文献
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以五种不同的双胶纸为试样,通过测定它们的水份含量、紧度、纤维组成、纤维长度等,分析得到在相同原料和抄造条件下,合理增加成纸的水分含量或紧度能相应的提高印刷表面强度,减少掉粉掉毛等印刷故障;木材原料抄造的纸张要比竹子或草类原料抄造纸张的强度高,印刷性好;细小纤维及长纤维含量较少、中长纤维含量较多的纸张,印刷时不易产生掉粉掉毛的故障。 相似文献
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通过实验发现,将硅树脂加入胶印轮转黑墨中,能降低油墨的粘着性并提高纸张的拉毛速度。使用添加硅树脂而改性的胶印黑黑印刷,可以减缓纸张掉粉、掉毛现象的发生,有利于印刷生产的规范化管理。 相似文献