Method for detecting doubling rate of fibers
A detection method and fiber technology, which can be used in measuring devices, material analysis by optical means, instruments, etc., can solve the problem that there is no simple and accurate method for the detection of fiber filamentation rate.
Pending Publication Date: 2021-07-27
ZHEJIANG AEGIS NEW MATERIALS CO LTD
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At present, there are some simple and accurate standards and methods for the detection of some physical properties such as fiber linear density, strength and modulus, but there is no relatively simple and accurate method for the detection of fiber doubling rate
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[0029] In the national standard GB / T 14339-2008, the detection method of the doubling rate of short fibers is recorded. In this method, a sample of a certain quality is firstly taken, and after being opened by a machine or manually, the doubling of the fibers is manually picked out. Weigh the mass of doubling wire to calculate the mass ratio of doubling wire, so as to obtain the doubling rate. However, this detection method manually picks out fibers and combines them, which is not only inefficient, but also easily causes problems such as low accuracy and human error, which greatly affects the development, industrial production and application of fibers.
[0030] In order to simplify the detection of fiber doubling rate, and improve the degree of automation and detection accuracy, the present invention proposes a detection method of fiber doubling rate.
[0031] Below, with reference to the accompanying drawings of the present invention, the embodiments of the present invention...
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Abstract
The invention relates to a method for detecting the doubling rate of fibers. The method comprises the following steps: manufacturing a to-be-detected fiber sample: manufacturing a cut fiber sample into the to-be-detected fiber sample by using a cloth sample machine; detecting a to-be-detected fiber sample: acquiring an image of the to-be-detected fiber sample by using the detector, and sending the acquired image to the computer; processing an image of the to-be-detected fiber sample, wherein the computer processes the obtained image to obtain a data table containing the fiber diameter and the number of the fibers with the same fiber diameter, and the corresponding fiber diameter when the number of the fibers with the same fiber diameter is maximum is obtained from the data table to serve as a normal fiber diameter alpha; and calculating the doubling rate of fibers, in which the diameter beta of the abnormal fibers is calculated according to the formula that beta = alpha * 1.5, the number E of the fibers with the diameter larger than or equal to the diameter beta of the abnormal fibers and the total number T of the detected fibers are obtained according to the data table, and the doubling rate P of the to-be-detected fibers is calculated according to the formula that P = E / T * 100%. The method is simple, rapid, high in precision and high in automation degree.
Description
technical field [0001] The invention relates to a detection method of fiber doubling rate. Background technique [0002] At present, various types of fiber materials are more and more widely used in people's daily production and life. In order to meet the development, industrial production and application of fibers, the detection of fiber properties is very important. At present, there are some simple and accurate standards and methods for the detection of some physical properties such as fiber linear density, strength and modulus, but there is no simple and accurate method for the detection of fiber doubling rate. [0003] For example, the national standard GB / T 14339-2008 records the detection method of the doubling rate of short fibers. In this method, a sample of a certain quality is firstly taken, and after being opened by a machine or manually, the doubling of the fibers is manually picked out. Weigh the mass of doubling wire to calculate the mass ratio of doubling wi...
Claims
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IPC IPC(8): G01N21/84G01B11/08
CPCG01N21/84G01B11/08G01N2021/8444
Inventor 李扬亓秀斌张鸿鹏何飞
Owner ZHEJIANG AEGIS NEW MATERIALS CO LTD