针织物缝针穿刺阻力的分析和实验探讨

本文用示踪纤维的方法,观察和分析了缝制针织物时针织线圈的变形和受损概率.通过研制缝针测力传感器,动态测定针织物缝针穿刺阻力及实验统计分析,得出缝针穿刺阻力与针织物容针空间密切相关,与缝针截面大小呈显著的线性正比关系的结论.     

单针床氨纶弹力经编毛圈织物的探讨

单针床氨纶弹力经编毛圈织物的编织，至少要使用三把梳栉。机后两把流栉为地梳栉，机前一把梳栉为毛圈梳栉，并且氨纶弹性纱线应穿在后梳栉上。地组织必须采用针后移针与毛圈沉降片横移同向的经平组织，毛圈组织应采用编链组织。     

凹凸单面提花织物的结构与组织设计

本文提出用“提花线圈分布图”来表示提花组织,并通过实验和织物组织结构的分析来讨论织物产生凹凸效应的原因。对于不同结构的凹凸效应进行分类。介绍判断凹凸效应和设计凹凸单面提花组织的方法。     

A New Method for Measuring the Stitch Length of Weft Knitted Fabric in a Static Environment

It is essential to measure the stitch length of weft knitted fabric in a static environment for economy and improving productivity. The image inputted was dealt with the digital image processing techniques： the paper carried out the transformation of grey scale; then removed impurities with filtering; the characteristic of the stitch structure was abstracted by using the Fourier transform technique. To obtain the stitch length more accurately, we should establish ageometric medal of the stitch lined on the digital image processing, which provides a way to transform the stitch length in the two-dimenslon space into a three-dimension space. This study provides a new methed for measuring the stitch length without damaging the fabric.     

Investigation on the Dimensional Properties of Relaxed Plain Knitted Fabrics

A geometric model of relaxed plain-nitted fabric isproposed.A method based on the model for predictingthe loop length from the course spacing,wale spacing offabric and the diameter of yarn is deduced,as well as a computer program is developed to graphically represent the structures of plain knitted fabric with various struc-tural parameters.     

丝光对棉平针织物线圈结构形态的影响

本文就烧碱浓度、浸碱时间、丝光张力和丝光前线圈长度对丝光后棉平针织物的圈高、圈距、厚度、线圈长度和线圈形态系数等线圈结构参数的影响进行了探讨。实验表明,丝光后棉平针织物线圈长度缩短,圈高变大,圈距变小,厚度变薄,线圈形态系数变小。通过分析可以定性地得出其特性的变化。     

Study on How to Design Knitted Fabric Pattern with Mathematical Theory

To improve design capabilities for the knitted fabric pattern, a preliminary study is carried out for the design method. Based on mathematical theory, pattern could be created automatically by computer with inputting different parameters for mathematical functions. The knitted fabric simulation is realized by Ml CAD pattern preparation system of STOLL Company. In the pattern,different color unit is replaced by obverse stitch with different color, or by obverse stitch and reverse stitch with the same color separately, after that the effects of knitted fabrics could be simulated. Designing with this method, it would not only help to acquire a great of diversity patterns,but also improve design efficiency and save cost.     

纬编针织物在计算机中的三维仿真

为真实模拟纬编针织物的结构,通过分析纬编针织物的物理模型,在三维Pierce线圈模型基础上,引入B样条及椭圆描述线圈,从而建立三维几何线圈模型.根据纱线线圈的中心线走向,将线圈分为两个部分:弧段和圈柱,弧段(如针编弧、沉降弧)用椭圆描述,圈柱用三次B样条曲线模拟.最后利用OpenGL结合VC++模拟针织物的结构,并实现光照效果.试验结果表明:采用该模型及实现方法,模拟效果比单独采用三维Pierce模型、B样条模型更加逼真.     

单梳经平织物增强复合材料拉伸性能试验研究

在拉舍尔舌针经编机上编织了6种玻璃纤维单梳经平织物,采用手糊工艺将其与不饱和聚酯树脂复合.在万能材料试验机上测试了单梳经平织物增强复合材料试样的拉伸性能,并对其纵向、横向与斜向应力-应变曲线、弹性模量、断裂强度等进行了分析.结果表明,单梳经平织物增强复合材料的拉伸性能具有明显的正交各向异性特征;织物结构参数的变化,导致了线圈形态、延展线的长度和取向等的差异,使复合材料的拉伸性能不同.     

APPLICATION OF COMPOSITE FIBRE TO HIGH ELASTIC KNITTED FABRIC

The knitting condition and technology for PBT/PET composite fibre on loop wheel machine as well as the effect of knitted fabric structure and stitch parameter are discussed in this paper. The properties of high elastic plain knitted fabrics are also discussed.     

未起绒1:3衬垫针织物的线圈几何结构性能

本文的目的主要是讨论未起绒1∶3衬垫针织物的线圈几何结构性能。文中先提出了一个把机号、纱支、地纱和衬垫线线圈长度、以及它们之间的比值等因素进行综合考虑的实验计划,然后分析讨论这些因素在洗涤松弛状态下对织物纵横向密度以及平方米克重的影响;同时还对这种组织结构进行了一定的理论分析,以便得到更精确的计算公式。实验结果和理论分析表明,地纱线圈长度是影响织物线圈几何尺寸的主要因素,这对实际生产有一定的指导意义。     

热环境中针织面料穿着舒适性影响因素的研究

从人体穿着舒适的要求出发,对热环境中针织面料的穿着舒适性进行了研究,找出影响针织面料舒适性的某些织物结构参数,为功能性织物设计、生产及服装选料提供一定的参考.     

用计算机建立棉针织物的线圈模型

介绍了目前国际上有关建立针织物线圈模型的几种观点，叙述了从生产实际中取样，利用计算机建立实用型线圈模型的方法，同时，也分析了棉针织物的平衡状态。     

小口径圆筒形纬平针织物线圈形态的几何分析

小口径圆筒形纬平针织物作为人工气管、血管外支架等医用支架在医疗领域得到了应用,而支架的表面几何形态及其孔隙率是临床使用中考虑的一个重要因素.将小口径圆筒形纬平针织物的一个线圈分为8个部分,对其线圈形态进行分析,给出了线圈横向和纵向变形达到极限时的几何特征,推导了表面孔隙率的计算公式.并针对一个给定的小口径圆筒形纬平针织物进行了计算,得出了各几何参数之间的关系.     

Web-Based Interactive Simulation of Weft Knitted Fabric

In order to realize parametric simulation of three- dimensional (3D) fabric structure based on web,a 3D model describing a plain knitted fabric,in which the cross- section of the yarn is circular shape and the path of the yarn is cubic B-spline curve,is proposed in this paper. With this model,the 3D simulation of the loop and of the basic structures of the knitted fabrc is realized by using Virtual Reality Modeling Language (VRML). The virtual simulation scene is suitable for network transmission with freely available VRML browsers and can be translated,scaled and rotated quite arbitrarily. By using Java and External Authoring Interface (EAI) technology,the web- based interactive simulation platform of weft knitted fabric is established. The user can input type of structures,basic fabric parameters,and yarn colors interactively to obtain a more realistic simulation result in real-time. A new approach is provided to imitate the knitted fabric 3D appearance on network.     

针织成圈时最小线圈长度的研讨

从线圈成圈过程中变形的极限状态分析了单面舌针针织机成圈时的最小线圈长度的计算及影响因素。提出了提高产品质量、减少织疵时应考虑的纱线细度、机号、针头尺寸及调机工艺等有关问题。     

Measuring Structural Parameters of Knitted Fabrics by Digital Image Processing Techniques

In the knitting industry the measurements of the stitchdensity and the stitch length are usually done manuallywhich may lead to fatigue of the eyes,subjective ideasbrought into the test results and low precision.The mostcommon method of measuring stitchlengthin static state isby raveling the stitch.Damage tothe fabricis unavoidable.Therefore it is necessary to find a scientific and feasibletrial balloon.Digital Image Processing Techniques are nowbroadly applied in many scientific aspects inc…     

双轴向经编结构拉伸特性的研究

对机织平纹及双轴向经编织物的拉伸性能进行了测试分析与比较，对双轴向经编织物的拉伸强力与受力方向上的衬经（或衬纬）纱密度的关系进行了回归分析，探讨了双轴向经编织的拉伸特性及优势。     

Research on the Loop Deformation of Flat Silk Knitted Fabric Made from Parallel Spun Silk/ramie Core Yarn

This paper analyzes the causes of loop deformation of flat silk knitted fabric made from parallel spun silk/ramie core yarn. Through the measurement and analysis on the loop deformation of various samples, it is concluded that the problem herein mentioned would be improved to a certain extent by changing the fabric density or mixknitting from yarn with different direction of twist.     

单面无缝内衣组织结构的搭配

探讨单面无缝内衣针织物的成型及花纹形成时组织结构搭配的要求及其规律.通过理论分析提出织物成型及花纹形成时对组织结构和纱线的要求.通过上机实验观察并分析花纹的表现效果得出,选择合适的纱线和织物组织搭配不仅可以塑造出合体舒适的胸、腰、臀等立体部位,还可以编织出清新亮丽的花纹图案.成型时使用纱线量较多的组织可使该部位凸显,使用纱线较少的组织使该部位收紧,花纹应用反组织其表面平整清晰,花纹边缘部位应用分割效果明显的组织结构.