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1.
将含有竹纤维、Modal纤维和Tencel纤维混纺成分的牛奶蛋白纤雏纱线,分别织造纬平针、1+1罗纹和双罗纹3种组织的织物,并且每种组织都有3种松紧程度.对试样的抗起毛起球性能进行测试,从而分析不同因素对牛奶蛋白纤雏混纺针织物抗起毛起球性能的影响.结果表明:不同的混纺纤维对牛奶蛋白纤维混纺针织物的抗起毛起球性能的影响比较复杂,这是纤维形态、纤维性能和织物紧密程度三者共同作用的结果.3种组织中,双罗纹组织的抗起毛起球性能最优;织物的密度与抗起毛起球性能紧密相关.  相似文献   

2.
以自制的反应性阳离子水性聚氨酯对纯羊绒针织物进行抗起毛起球整理,研究整理剂对纯羊绒针织物整理效果及其服用性能的影响。研究结果表明:在整理剂最佳的应用工艺下(整理剂质量浓度50g/L、浴比1:35、整理液pH5.5、40℃下处理20min、100℃烘干),可显著提高羊绒针织物的抗起毛起球性能,其起毛起球等级从2.0级提高到4.0级,且织物的手感和白度等风格不受整理剂的影响。  相似文献   

3.
选用一种低温环保型水性丙烯酸酯共聚乳液,对羊毛纬平针织物进行了抗起毛起球的整理,研究了整理剂质量浓度、浴比、时间、温度4个因子对羊毛纬平针织物整理效果的影响.根据正交实验得出较优工艺参数为:整理剂质量浓度30g/L、浴比1:35、温度50℃、时间30min.经该工艺整理后可提高羊毛纬平针织物的抗起毛起球性能和织物强力.  相似文献   

4.
以聚四亚甲基醚二醇、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)、氨基硅油为主要原料,合成了氨基硅油改性水性聚氨酯乳液.采用红外光谱(FTIR)确认了聚合物的结构;通过接触角、耐水实验测试了聚合物拒水、耐水性能;采用氨基硅油改性水性聚氨酯乳液对羊绒针织物进行整理,测试了羊绒织物的抗起毛起球性能.结果表明,随着氨基硅油接入量的提高,聚氨酯涂膜的耐水、拒水等性能得到提高.经整理的羊绒针织物抗起毛起球性提高了1~2级,羊绒织物的柔软性不受影响.  相似文献   

5.
赵琦 《科技咨询导报》2007,(10):203-204
卡摩纱在纱线外观、纱线结构以及纱线物理性质方面,相对传统环锭纱有了很大的提高和改善。本文将11.7tex纯棉环锭纱和卡摩纱纺成的针织物做了织物密度、织物纬斜、织物顶破强力及织物起毛起球的试验,实验数据表明卡摩纱针织物的各项性能均优于环锭纱针织物,卡摩纱将在针织领域得到广泛应用。  相似文献   

6.
以精纺粗花呢纯毛织物为例,探讨纤维、纱线、织物结构因素及后整理工艺条件对精纺粗花呢织物起毛起球的影响.采用BP神经网络方法,建立纱线和织物结构参数与织物起毛起球性之间的关系.根据各种影响因素的变化预测精纺粗花呢起毛起球等级.  相似文献   

7.
本文将小波分析方法应用于织物起毛起球图像分析,建立了基于二维离散小波变换的织物起球图像分析模型,提出了优化分析小波及相应的分析尺度的步骤,并利用Haar小波的方波形状与机织物的织纹结构具有相似性的原理,采用Haar小波对机织物起毛起球进行了分析,给出了织物起毛起球客观评定方法.  相似文献   

8.
绿色环保型针织服装的面料服用性能研究   总被引:3,自引:0,他引:3  
对Tencel和Modal纯纺、混纺织物及其棉织物的弯曲刚度、悬垂性、起毛起球性、回潮率、透气性、透湿性、耐磨性能进行了测试与分析;并利用SPSS软件的聚类分析方法对试样的综合服用性能进行了分析。  相似文献   

9.
涤棉双面针织物透湿等性能分析   总被引:1,自引:0,他引:1  
针对我国流行的涤棉双面针织物,本文研究了纱线粗细、编织密度和组织结构等对织物透湿性、耐磨性、抗起毛起球性等影响。从热湿舒适性、服用性能角度出发,提出了有关原料选择、编织密度和组织结构等方面的新见解。  相似文献   

10.
潘国辉 《科技信息》2011,(27):I0418-I0419
介绍了目前一些纺织品的起毛起球成因,分析了纤维、纱线、织物、加工及服用等因素对起毛起球的影响。根据不同种类的纤维和织物(棉麻、涤纶、腈纶、毛),提出了相关的抗起毛起球新工艺。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

14.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

15.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

16.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

17.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

18.
In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.  相似文献   

19.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

20.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

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