Image testing method for chemical fibre thermal contraction rate and testing apparatus thereof

A technology for thermal shrinkage and image testing, applied in measuring devices, optical devices, textile testing, etc., can solve the problems of low measurement accuracy of thermal shrinkage of chemical fibers, and achieve improved reliability, accurate and reliable control, and improved weight. present effect
CN1609603AInactive Publication Date: 2005-04-27SHANGHAI LIPU APPLIED SCI TECH INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI LIPU APPLIED SCI TECH INST
Publication Date
2005-04-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention belongs to the field of textile measuring instrument, and is one kind image test method and apparatus for the heat shrinkage of chemical fiber. The measuring method includes taking images of single fiber samples hung to cylindrical frame with CCD camera to obtain the length change before and after heating, and calculating in computer the heat shrinkage of chemical fiber. The measuring apparatus includes stepped motor, turntable, positioning pin, sample cylinder, elevator, metering calibration block, upper spring clamp, lower tensile clamp, holding circular ring, CCD camera, pulse distributor, casing, computer, display and printer. The present invention has the advantages of reliable test result, high precision, simple instrument structure and low fault rate.
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Description

technical field

[0001] The invention belongs to the field of textile measuring instruments, and relates to an image test method and a test device for thermal shrinkage rate of chemical fibers, which are suitable for the quality control of chemical fiber factories and the inspection of fiber quality by textile enterprises and testing institutions. Background technique

[0002] The thermal shrinkage rate of chemical fibers has a great influence on the quality of finished products. Due to the difference in fiber thermal stability, it will not only affect the dimensional stability of the finished product, but also cause adverse dyeing effects such as discoloration and color difference. Shrinkage occurs at the seam, which seriously affects the appearance quality of the product. Excessive shrinkage will also shorten the length and thicken the diameter of the sewing thread, which will affect the quality and cost of the manufactured product.

[0003] The method of measuring fiber h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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