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为了降低OE 29.2Wtex气流纺纱布面疵点,对出现的疵点进行归类并分析原因,制定出预防措施。指出:布面疵点主要有错纬纱、条干纱、竹节纱和油污纱4种;应以预防为主,做好清洁,严格操作,加强维护保养等基础工作;采取应对措施后,布面错纬疵率由0.77%下降为0.23%,条干疵率由0.54%下降为0.22%,竹节疵率由0.82%下降为0.09%,油污疵率由0.90%下降为0.10%。 相似文献
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对企业一年多生产的高支高密织物疵布进行统计,分析结果认为主峰疵点中很大一部分属于操作疵点。提出了减少布面操作疵点的五项预防措施。实施后,布面操作疵点减少了30%。 相似文献
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我国纺织企业仍普遍采用国产有梭织机,因其结构上存在缺陷,布面横档疵点始终无法克服,严重制约着棉布质量的提高。布面横档疵点产生的原因是多方面的,除操作上处理不当外,织机结构、性能对面布横档疵点的产生,关系十分密切。因此,国内不少纺织企业、纺机生产厂家对改善织机结构,提高其性能作了多方努力,其中最主要的是对织机作局部改造,以达到降低布面横档疵点的目的。 相似文献
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现在的纺织品市场是品种和质量的市场,谁的品种对路、质量好,谁就掌握市场的主动权。目前国产1511、1515系列有梭织机的顽症是布面横档疵点。而横档疵点最突出、最头痛、最难解决的就是布面稀密路疵点(主要是开关停台引起的歇梭和密路)。因此,布面质量的好坏也就主要取决于布面横档疵点,特别是稀密路的多少,从而为提高国产有梭织机的布面质量找到了关键。 我厂现有国产有梭织机1515—63”织机572台,从日本和比利时进口的无梭喷气织机143台。国产有梭织机横档稀密路(歇梭和密 相似文献
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Shengqi Guan 《纺织学会志》2013,104(12):1560-1573
Due to a large variety of fabric defects, the traditional detection method is difficult to meet the needs of dynamic detection that include all kind of defects. In order to enhance the effect of fabric defects detection, this paper proposed a dynamic delaminating detection method that fabric defects in the HSV color space are detected according to the fabric defect saliency. The idea is simulating the human visual system, and gradually enhancing the saliency of fabric defects through the data-driving. By the way, different types of defects are highlighted in different layers. At the same time, some task factors are used to drive form detection interest region in each layer. Then all kinds of defects are delaminated detection by setting a threshold in different layers. Experiments show that the proposed algorithm can accurately detect all kinds of defects, and have a strong universality for various types of defect detection. It can provide a possibility for the realization of fabric defects automatic detection. 相似文献
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基于小波奇异性的纸病检测 总被引:1,自引:1,他引:1
讨论了在纸幅随机纹理背景下纸病的检测,提出利用纸病处的奇异性来区分其和背景纹理.首先使用光滑函数与纸病信号进行卷积运算,然后选取能够保留纸病奇异性特征且同时削弱随机纹理所产生起伏的适当尺度下的信号,并对其实施进一步小波变换,去除大部分纹理起伏所对应的极大值线,最后利用极大值线与纵轴相交的截距来判断纸病. 相似文献
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为了对贴片LED编带过程中的混料、空料、反料、侧料、极性不一致等缺陷进行检测,以保证产品的一致性,设计了一个用于LED编带过程缺陷检测的视觉系统。将基于金字塔的模板匹配算法用于产品缺陷识别,用VS2010编写了检测软件,并在实验中检测了不同的缺陷。结果表明,给出的算法能够识别出常见的缺陷,并能区分出缺陷的类型。 相似文献
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制革常见缺陷及其救治--准备工段中的缺陷及其救治 总被引:2,自引:0,他引:2
制革缺陷往往会对成革质量造成多方面的影响。作者根据自己已有的知识和经济,分析研究了形成制革缺陷的可能原因,并提出了具体的救治方法。 相似文献
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以紧身内衣为例定义了针织物的弹性纱线织疵.研究和评定了形成弹性织疵的影响因素.总结了生产工艺链中各个阶段的影响因素. 相似文献
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Chang-Yu Zhou Dao-Dong Pan Jin-Xuan Cao Guang-Hong Zhou 《Comprehensive Reviews in Food Science and Food Safety》2021,20(4):3838-3857
Excessive bitterness, pastiness, and adhesiveness are the main organoleptic and textural defects of dry-cured ham, which often cause a lot of financial losses to manufacturers and seriously damage the quality of the product. These sensory and textural defects are related to the protein degradation of dry-cured ham. Proteomics shows great potential to improve our understanding of the molecular mechanism of sensory and textural defects and identify biomarkers for monitoring their quality traits. This review presents some of the major achievements and considerations in organoleptic and textural defects of dry-cured ham by proteomics analysis in the recent decades and gives an overview about how to correct sensory and textural defects of dry-cured ham. Proteomics reveals that muscle proteins derived from myofibril and cytoskeleton and involved in metabolic enzymes and oxygen transport have been identified as potential biomarkers in defective dry-cured ham. Relatively high residual activities of cathepsin B and L are responsible for the excessive degradation of these protein biomarkers in defective dry-cured ham. Ultrasound-assisted mild thermal or high-pressure treatment shows a good correction for the organoleptic and textural defects of dry-cured ham by changing microstructure and conformation of muscle proteins by accelerating degradation of proteins and polypeptides into free amino acids. 相似文献
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针对显著纹理背景下织物图像灰度级有限、对比度不明显致使目标疵点自动检测难度较大的问题,提出了一种用于显著纹理背景的织物疵点检测方法。首先,鉴于Tamura纹理模型具有分辨能力强、旋转不变性以及算法鲁棒性强的特点,提出了多尺度度量局部纹理粗糙度的改进算法,以增强纹理分辨能力;然后,结合织物疵点图像视觉显著性分析,基于局部纹理最佳窗口,通过提取与融合粗糙度、对比度和方向生成视觉显著性特征图,以显著突出织物疵点区。经TILDA织物纹理图库数据的实验测试,结果表明,与其他相关方法相比,此方法在有效抑制显著纹理背景的同时,检测的目标疵点具有较好的一致性和完整性。 相似文献
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叙述了台板裁片印花的各种疵病,介绍了台板裁片印花产生疵病的主要因素,并分析了其产生的原因,提出了防止疵病产生的措施。 相似文献