转杯纱、环锭纱及其针织物性能研究

系统地对普梳和精梳转杯纱、普梳和精梳环锭纱等4种纱线及其相应针织物的各种性能,尤其是力学性能进行了比较系统的测试分析,并对其中某些性能的差异显著性作出分析检验。     

Structures and Properties of Composite Yarns of Filaments and Wool Staple Fibers

More and more composite yarns of filament and wool staple fiber have been applied to develop the new type of fabrics. However, the great difference in yarn structures between the composite yarns and conventional staple yarns does affect the properties of yarns and fabrics. In this paper, it has been studied that the differences of the composite yarn properties of tensile, bending rigidity, torsional rigidity, the hairiness and irregularity etc.     

织造和染整加工前后精梳毛纱拉伸性能的关系

为了根据织造前纱线的拉伸性能和织造、后整理工艺预测织物的拉伸性能,研究了织造和染整加工前后精梳毛纱拉伸性能的关系,获得了三方面的结论:(1)经常规后整理加工的各种精梳毛织物中经纱的伸长变形能力没有显著差异,但其纬纱的伸长变形能力与织造和染整工艺有关。(2)坯布染色情况下织造前纱线的伸长变形曲线在伸长率方向扩大一定倍数以后与织物中纱线的伸长变形曲线相当。纱线染色情况下织造前纱线的伸长变形曲线的某一部分与织物中纱线的伸长变形曲线相当。(3)后整理加工中的经向张力和拉幅张力对精梳毛织物中纱线的伸长变形能力的影响特别大。树脂整理有降低织物变形特别是变形回复能力的作用。     

低档兔毛纺纱工艺路线探索

低档兔毛纤维短,本文采用棉型纺纱系统,可以纺制18 tex以细的纱,这样有利于开发薄型产品。但纯兔毛纱强力较小,可用涤丝包芯方式采加固。产品经济实惠,适合内销市场需要。本文工艺采用短流程,基本上在棉纺设备上加以改装后纺制成纱。     

毛涤Sirofil成纱起毛机理的探讨

Sirofil纱线的起毛问题一直是困扰毛纺行业的一大难题，特别是混入PET短纤后问题更加突出。Sirofil纱线起毛后，纤维之间发生缠结起球，使织造时开口不清，不仅影响织造效率，且易形成毛粒，布满布面，不易脱落。这里分析了Sirofil纱线的起毛问题，尤其是纱线中混入PET短纤后的情况，认为PET短纤的物理性能会影响到Sirofil纱线结构，并以此为依据，保持工艺参数不变，改变纱线中PET短纤含量，试纺Sirofil纱，通过理论分析和实验比较PET短纤对Sirofil纱线抗起毛性能的影响。结果表明，合理选择PET短纤维可以降低毛涤Sirofil纱线的起毛问题。     

SOME END-USES OF PURE RAMIE NOIL ROTOR YARNS

In the previous studies, the optimum technological combination has been obtained for producing coarse pure ramie noil yarns on rotor spinning system currently. Because of no yarn properties standard available at present for suchlike yarns, it is considered necessary to analyse the acceptability of coarse pure ramie noil rotor-spun yarns in terms of yarn properties before their products being developed. By the aid of a hypothetical concept "pure ramie noil ring-spun yarn", this paper draws the conclusion that the coarse pure ramie noil rotor-spun yarns are condsidered acceptable to a great extent; furthermore, it introduces 5 kinds of woven fabrics and 3 kinds of knitted fabrics successfully designed and developed from those yarns.     

TENSILE BEHAVIOUR OF ROTOR SPUN YARNS

This paper deals with the tensile behaviour of rotor spun yarns. Having regard to the spe-cial construction of rotor spun yarn, some modifications for Hearle's theory have been made inorder to apply Hearle' s theory to rotor spun yarn. The paper then goes into calculating thetensile curve and investigating the effect of main parameters and spinning conditions on thetensile behaviour of rotor spun yarn. It was found that the following facts are noteworthy forimproving the mechanical properties of rotor spun yarn: (1) Selecting suitable navel so as tocontrol the P. T. E. length within a reasonable range. (2) Improving the design of single fibresupply device to decrease the amount of spoiled fibre and hence increase the effective fibrelength. (3) Increasing spinning yarn tension without yarn break to enhance the fibre migrationratio. (4) For the rotor spun yarn of industrial use, it is the way to increase the yarn strengththat the rotor groove should be designed with the groove angle beneficial to decrease the yarnspecific volume.     

Abrasion Resistance Comparison between Rotor and Ring Spun Yarn

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熟条HVI测试性能与转杯纱强力之间关系的研究

选取30种纯棉普梳熟条,分别生产58.3tex和18.22tex转杯纱,再用多种数学方法分析熟条HVI测试性能与转杯纱强力之间的关系。结论对实际生产中的配棉、熟条生产工艺的优化以及成纱质量控制都有一定的指导意义。     

REPORT ON A PROJECT AIMED AT INCREASING THE STRENGTH OF FRICTION SPUN YARN BY USING A FALSE TWIST PROCESS

The lower strength of friction spun yarns has became a key problem that hinder the develop-ment of friction spinning,especially in high speeds and fine yarns.In this paper a project aimed atincreasing the strength of friction spun yarns by using a false twist process has been made.In re-ported experiment false twist was inserted into the yarn which has been formed on a friction spin-ning machine,so that it made the yarn untwist at first,then regain the twist.In the meantime draftwas applied to generate more tension than that which had been experienced during yarn formationon the friction spinning machine.It made the yarn reforming and the loosely bound fibres in thefriction spun yarn formed due to extremely low tension on the friction spinning machine becametighter.Results indicate that with the proper draft,tension and false twist the tenacity of processedyarn will increase more than 10%.This project is an attempt to discover whether improvements can be made and whether it isworth pursuing research into modifications of yarn structure.The results imply that if the yarntension can be raised during yarn formation on the friction spinning machine or a chance is offeredto the yarn to reform after the yarn formation the yarn tenacity will be increased obviously.     

气流纱的拉伸特性研究

本文讨论气流纱的拉伸特性。Hearle曾对具有理想结构纱线的拉伸特性进行过比较完整的研究工作。本文则根据气流纱独特的成纱结构,对Hearle理论在气流纱中的应用作了一定的修正,并在此基础上对气流纱的拉伸特性作了分析计算。计算结果与实测结果基本相符。最后还从气流纱的应力-应变关系式中,就影响气流纱强力、初始模量以及断裂功等等力学特性的一些主要工艺参数进行了分析讨论。得出合理选用阻捻盘、很好控制捻度传递长度;合理设计与选用分梳及输棉机构,在不断改善单纤维供应的同时,尽量减少纤维损伤,提高纤维有效长度;适当提高纺纱张力,增加纤维转移等等都是改善气流纱强力等力学特性、提高成纱质量的有效途径。对工业用气流纱,还可通过合理设计凝棉槽,以提高气流纱紧密度的途径来提高气流纱强力。     

AN INVESTIGATION OF THE RELATION BETWEEN COTTON FIBRE PROPERTIES AND YARN QUALITY BY USING HIGH VOLUME INSTRUMENT(HVI)SYSTEM

The objective of this paper is to establish reliable prediction equations relating cotton fibreproperties measured by HVI system and yarn quality,A useful statistical method is adopted for de-veloping a multiple regression model interpreting the relation between the data of Spinlab HVIfibre properties and quality parameters of yarn STQ (Strength Tex Quotient).The percent relativecontribution of a fibre property with respect of STQ is also assessed.The results show that the totalcontribution of the HVI measured fibre properties can account for 77.4% of known variation ofyarn STQ.The main feature of the approach is its flexibility in accommodating all fibre properties.The examination of regression equation showed that it could be well applied to predict STQ ofyarns spun from the same spinning system,but,for different spinning systems and also for yarns ofdifferent linear density,modification of the equation would be needed.     

双组分纤维混纺纱强伸性能的研究

从双组分纤维纯纺纱的拉伸性能和断裂过程出发，对双组分纤维的混纺纱的断裂特性进行了分析，建立了双组分纤维混纺纱的伸长率与各组分纤维本身的拉伸性能，混纺比之间的理论关系式，并用几种双组分纤维及其混纺纱的实验拉伸结果与所推出的理论关系式做了验证对比，证明所建立的理论关系式是可靠的。该式对于预测混纺纱的拉伸性能，从而正确选择混纺纤维及其混纺比有理论指导意义。     

锦纶66包芯纱牛仔面料开发

使用锦纶66纤维开发高性能、高品质的牛仔面料,以粘胶为外包纤维,锦纶66或氨纶为芯丝制成36.4和28.0 tex的包芯纱为纬纱,使用剑杆织机使其与36.4和28.0 tex的纯棉纱线进行交织,制成牛仔面料。对锦纶66包芯纱和氨纶包芯纱所织制的6种牛仔面料进行色牢度、耐磨性、强力、弹性回复性、折皱回复性和弯曲性能等性能测试并进行对比分析,发现锦纶66包芯纱牛仔面料的弹性达到氨纶包芯纱牛仔面料的弹性水平,且其强力和柔软度更佳。以粘胶/锦纶66(3.33 tex/10 F)包芯纱织制面料比粘胶/锦纶66(3.33 tex/34 F)强力更大、弹性回复性更好,且更柔软。同时,采用36.4 tex纱线所织制的面料的强力、弹性和折皱回复性更好,但28.0 tex纱线所织制的面料更柔软。     

棉／维纶混纺纱及其针织产品性能分析

对棉/维纶混纺纱线及其针织物进行了退维工艺处理,从而获得相应纱线及其针织物.并对处理前后纱线的断裂强力、失重率、毛羽以及织物的压缩性能、保暖性和吸湿快干性进行了测试分析,得出该纱线具有良好的机械与服用性能.     

紬丝包芯纺纱的探索

本文介绍了一般的包芯纱,包绕纱中纤维的组合形式、纺纱方法及成纱特点。在此基础上介绍了(纟由)丝包芯纺纱的工艺、试验所用的材料、成纱品质及其与(纟由)丝的比较。从而指出(纟由)丝包芯纱兼备了(纟由)丝和化纤长丝的特点。因此,(纟由)丝包芯纺纱有继续探索的必要和可能。     

摩擦包芯纱织物性能的研究

文章对棉包涤纶长丝摩擦纱、棉包锦纶高弹丝摩擦纱、棉包锦纶全牵伸丝摩擦纱以及棉包粘胶长丝摩擦纱的平纹织物的性能进行了试验研究,并将它们与纯棉环锭纱和纯棉摩擦纱的平纹织物的性能进行了比较和分析。研究结果表明,棉包涤纶长丝摩擦纱织物和棉包锦纶高弹丝摩擦纱织物在服用、舒适性等方面均优于环锭纱织物。这两种摩擦包芯纱织物作为服用织物将具有良好的发展前景。     

Prediction of Rotor Spun Yarn Strength Using Adaptive Neuro-fuzzy Inference System and Linear Multiple Regression Methods

This paper presents a comparison study of two models for predicting the strength of rotor spun cotton yarns from fiber properties. The adaptive neuro-fuzzy system inference （ANFIS） and Multiple Linear Regression models are used to predict the rotor spun yarn strength. Fiber properties and yam count are used as inputs to train the two models and the count-strength-product （CSP） was the targel. The predictive performances of the two models are estimated and compared. We found that the ANFIS has a better predictive power in comparison with linear multiple regression model. The impact of each fiber property is also illustrated.     

尘笼纺纱的结构和性能

本文测定了尘笼纺涤/棉混纺纱中涤沦和棉纤维的排列形态,并对相同原料、相同规格的尘笼纺和气流纺涤/棉混纺纱和织物的性能进行了对比测定。结果表明:在尘笼纱中,纤维的排列形态相当紊乱;尘笼纱和织物的强度均比气流纺的相应产品为低;而且,尘笼纱织物容易起毛起球。     

Strength Properties of 3D Solid Orthogonal Panel Fabrics

IntroductionWith the development of high performance fiber andtextile perform manufacturing technology, fiber reinforcedcomposite materials are getting more and more attractivebecause they have many advantages such as their highstiffness and strength at low density, high specific energyabsorption behavior, and excellent fatigue performance.Therefore they are frequently used in a wide variety ofapplications[1], although most of them are two dimensional(2D) laminated comp…