Method of measuring the twist angle between slub and base yarn of slub yarn

A technology of slub yarn and twist angle, which is applied in the field of measurement of segmental structure twist, to achieve the effect of convenient operation, short process and simple principle

Inactive Publication Date: 2007-06-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the test method of twist, it generally follows the traditional one-time untwisting method, two-time untwisting method and multiple untwisting method, but what is measured in this way is only the average twist of the slub yarn

Method used

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  • Method of measuring the twist angle between slub and base yarn of slub yarn
  • Method of measuring the twist angle between slub and base yarn of slub yarn
  • Method of measuring the twist angle between slub and base yarn of slub yarn

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Embodiment Construction

[0018] Only when a part of the fiber on the surface of the roving is colored, can a white and colored yarn be spun after drafting and twisting (Figure 1). Dye the roving first, let the fibers on the surface of the roving be colored, as shown in the picture (Figure 2), so that it can spin a slub yarn similar in appearance to the AB composite yarn spun from two different colored rovings. As shown in the figure (Fig. 3), the fibers on the surface of the slub yarn are dyed and traced. Next, wrap the spun slub yarn evenly on the dark cardboard, and maintain a certain tension so that it can be straightened and paralleled for easy measurement. Then use the DZ3 video zoom microscope and image acquisition software to collect the yarn surface image where the direction of the traced fiber can be seen, and then use the image processing software to measure the angle between the traced fiber and the yarn axis of each segment of the yarn surface, that is, the twist horn. When measuring the...

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Abstract

The combined fiber tracer method and image method for measuring the twist angles of different parts of bunchy yarn. The roving is first surface dyed to reach the bunchy yarn spinning effect similar to that of two kind of roving in different colors; and the spun bunchy yarn is then wound onto one deep color paper board in certain tension for easy measurement. The images capable of showing the fiber trend in the yarn surface are obtained with DZ3 type microscope and image acquiring software and processed with image processing software to measure the twist angles of different sections of bunchy yarn.

Description

Technical field [0001] The invention relates to a method for measuring the twist of a yarn, especially for the twist of a special segmented structure of a slub yarn, which can directly measure the twist angle of the slub of the slub yarn and the surface fiber of the base yarn, and then Convert it to twist of slub and base yarn respectively. The traditional twist measurement method can only measure the average twist of the slub yarn, but this method can measure the twist of each section of the slub yarn, which lays a solid foundation for further research on the twist distribution, fracture mechanism and strength uniformity of the slub yarn. This has important guiding significance for the production of related enterprises. Background technique [0002] Twist is one of the most important parameters of yarn. The twist distribution of the base yarn and the slub part of the slub yarn directly affects the normal progress of spinning and weaving. Because the twist of the slub part ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H13/32G01B11/26G01B21/22
Inventor 徐伯俊李玲珍谢春萍郭兵强林真龙陈天全吴东明
Owner JIANGNAN UNIV
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