Effect of the Licker-in on Fibre Tuft Assembly

Abstract

This paper investigates (i) the effect of fibre type and lap weight on the resiliency of the blowroom scutcher lap, (ii) the effect of licker-in action on the lap, (iii) the shear force, strength and drawing length of the licker-in tuft.     

真丝纤维的抗菌增重方法实践

本文介绍了真丝纤维增重及抗菌处理的方法。增重处理在高温高压条件下进行,增重接枝液含有作为接枝单体的甲基丙烯酸酯类衍生物、引发剂、非离子或阴离子表面活性剂和脱胶废水。该方法将原要排污出去的脱胶废水回收利用,节约资源,减少污染,提高效益,符合循环经济,清洁生产的要求。处理后的真丝纤维在达到理想增重效果的同时也具有一定的抗菌性能。     

大曲容重测量方法的研究

通过比较大曲容重测量的几种方法,得到采用智能非接触体积测量系统(气体法),把体积参量转化为气体压力参量进行测量,具有无污损、测量速度快、精度高、重现性好等特点.采用该非接触式的测量方法对大曲容重进行测量,设计出一种适合大曲容重测量的新方法.利用该方法测量大曲容重精度可以达到99%以上,重复性误差小于±0.5%.     

轻薄型牦牛绒衫工艺探讨

阐述轻薄型牦牛绒衫原料的选择,工艺流程的制定,对重点工序应注重的事项进行了探讨。     

Improved Methods of Determining Fibre Density

An account is given of an investigation of the effects of fibre type (rayon, acrylic fibre, wool, and cotton) and dimensions on the properties of needled fabrics, the test methods used being those described in a previous paper. Some fabrics show a stick-slip behaviour in extension; others deform smoothly. Rayon webs consolidate more easily on needling than Courtelle or wool webs. Longer fibres give higher fabric strengths. Finer fibres also give higher strength, unless fibre damage occurs. The influence of fibre friction is discussed.     

不同制样方法对废纸脱墨浆光学性能的影响

以不同废纸浆及其经浮选和充分洗涤后的脱墨浆为原料,采用纸页成形器(垫布与无垫布)和布氏漏斗成形的制样方法制备不同的浆片,通过分析浆片的灰分含量、光散射系数、有效残余油墨浓度（ERIC）及白度,研究了不同制样方法对废纸脱墨浆光学性能的影响。结果表明,碎解浆和浮选脱墨浆经纸页成形器（无垫布）成形的浆片灰分含量较布氏漏斗成形的浆片灰分含量低55%以上;两种纸页成形器成形的浆片光散射系数相差不大;欧洲旧报纸（E-ONP）碎解浆中的油墨含量最高,纸页成形器（无垫布）与布氏漏斗成形的浆片之间的ERIC相差最大,达508.4 mg/kg,国产旧报纸（L-ONP）的充分洗涤浆中的油墨含量最低,纸页成形器与布氏漏斗成形的浆片之间的ERIC差值为40.8 mg/kg;同一浆料经布氏漏斗、纸页成形器(垫布)、纸页成形器（无垫布）成形的浆片白度依次升高。     

芳族聚酰胺纤维汽车安全空气袋

简要介绍了芳族聚酰胺纤维的性能和主要用途,综述了汽车安全气袋的发展,以及当代高级小汽车用安全气袋的设计要求和发展趋势。     

废纸脱墨浮选柱中气泡大小的测量方法

废纸脱墨浮选柱（简称：浮选柱）中的气泡大小对脱除废纸浆中的油墨颗粒和其他杂质颗粒的效率起着相当重要的作用，它不仅决定着气泡在浮选柱中的上升速度，而且直接影响到用于聚集油墨及其它杂质颗粒的气液界面的大小。但是由于废纸浆的成分复杂、纤维在浆中呈现网状结构、废纸浆的弱透光性和在纸浆中气泡的不断上升运动等原因，浮选柱中气泡大小的测量是一个相当复杂的问题，因而给浮选操作中气泡的大小控制带来很大的困难和盲目性。本文介绍了国外相关行业的类似气-液-固三相体系研究中使用的闪光X-射线法、声波检测法和带取样器的CCD照相法三种气泡大小测定的方法。     

Methods of Determining the Fibre Content and Evaluating the Fibre Blending in Bicomponent Cellulose Blends

Abstract

Chemical methods of determining composition of blends with respect to blends of different fibres have been standardised in many countries. In Poland we also have numerous standards covering most blend types present in the produced textiles. However, these methods cannot be used for studies of quantitative composition of blends containing cotton and bast fibres. There are also methods, less popular and not standardised so far, of determining composition of blends on the basis of changes of the physical properties of the blend in relation to changes of the physical properties of its component fibres. Such methods are usually applied in research work. It seems, however, that they are worth popularising in quality control of half-products and final textiles, as well as in interoperational control.

Blending of fibres is one of the most important operations in yarn production processes. Irregularity of fibre blending has an adverse influence on the quality of yarns. Therefore, it is very important to study fibre blending at various stages of the spinning process and to select proper methods of studying the blending.

In this work we present and analyse methods used for determination of content and evaluation of blending of fibres in bicomponent cellulose blends.     

应用于高温气体过滤的Basofil过滤材料

总结了Basofil滤料的物理性能、过滤效率的研究及其特性。除尘室现场试验结果表明 ,与 10 0 %间位芳纶滤料相比 ,Basofil滤料具有更低的压力降和更高透气性的优点 ,且具有相近或更长的使用寿命     

应用于高温干态过滤的三聚氰胺纤维滤材的研制

本文介绍Basofil纤维的物理和化学特性、Basofil纤维与Metamax纤维混合制成的LFB针刺毡特性 ,以及LFB的研制和应用。     

降低Lyocell纤维原纤化程度的化学方法

论述了Ｌｙｏｃｅｌｌ纤维制造和染整国呀中可采用的防原纤化的化学方法－纤维素酶处理、碱处理或丝光、氧化剂处理、多官能团活性染染色、多官能团交联剂处理,并就多官能团活性染料的化学结构与防纤化的关系和交联剂的防原纤化作用进行了详细讨论。     

活性碳纤维净化室内空气的研究

本文分析了活性碳纤维的吸附特性与气相吸附性能 ,探讨了其在净化室内空气中的作用 ,并举例说明采用改性活性碳纤维去除室内空气污染物的效果。     

The Effect of Fibre Medullation on Laserscan Diameter Measurement

The effect of wool fibre medullation on diameter measurement in the expanding beam Laserscan has been investigated. A range of single fibres of diameter from 10 to 75 µm was uaed to investigate differences in the Laserscan optical response to normal and medullated wool. The concept of mean 'Fresnel diameter' is introduced to account for the variation in diameter along the fibre axis. Measurements on unmedullated and highly medullated wool fibres show no discernable systematic differences, and are in good agreement with Fresnel diffraction theory.     

改善丙纶吸湿性能的方法

简述近几年来各种改善丙纶吸湿性的方法 ,着重介绍了应用低温等离子体表面改性技术提高丙纶的吸湿性的方法。     

收缩管道内气流作用下纤维伸直的条件

用Ｐｏｈｌｈｏｕｓｅｎ提出的有压力梯度附面层近似方法导出了在收缩管道内气流作用下纤维伸直的条件为：在ｘ＝１处Ａ＝７．０５，随ｘ增加，Ａ也相就的增加，至纤维末端ｘ＝Ｌ处，Ａ≤１２。这时，气体作用于纤维壁面的切应力τ０随ｘ递增，纤维受拉力呈伸直状态。