A test device and test method for the crimp rate of chemical fiber textured filament

Abstract

The invention relates to a device and a method for testing the chemical fiber textured filament curling rate. The device comprises a double-limiter structure and a force measuring sensor, wherein the double-limiter structure comprises an upper hook, a lower hook, an upper hook disc, an upper limiter, a lower hook disc, a lower limiter and a metal guide wire; a shifting mechanism which is used for installing the shifting mechanism and is connected with the shifting mechanism can support the upper hook disc to move upwards; the lower hook disc is upwardly moved to the position of the upper limiter and is blocked by the upper limiter to stop movement; the upper hook disc continuously ascends to apply the tensile force to a skein specimen; and the force measuring sensor is used for bearing the downward load, automatically controlling the load and the remaining time of the skein specimen and measuring the length value of the specimen under different loading procedures to measure the curling index of a chemical fiber textured filament specimen. By adopting the device and the method, the test precision of the chemical fiber textured filament curling rate is remarkably improved, a force measuring system is convenient to calibrate and correct, the structure is reliable, and the fault rate is greatly reduced.

Description

technical field [0001] The invention belongs to the field of textile measuring instruments, in particular to a test device and a test method for the shrinkage rate of chemical fiber deformed filaments, 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] Chemical fiber filaments are processed through deformation and have a curled or looped shape. The woven fabrics have the characteristics of fullness, bulkiness, and good warmth retention, and some also have a certain degree of stretching elasticity. The shrinkage rate and bulkiness of chemical fiber textured filament are closely related to the process design and finished product quality of fabric or knitted fabric processing. For example, the chemical fiber deformed filament used in hosiery and underwear requires a larger room for expansion and contraction of the fabric size, so the shrinkage r...

AI Technical Summary

Problems solved by technology

The instrument measurement method is represented by the TEXTURMAT ME type filament crimp rate and heat shrinkage tester produced by the German Textechno Company abroad. The force sensor moves downward and inserts above the lower hook plate of the skein, and applies force downward to the skein to measure the length of the skein at a certain tension. The force method makes it difficult to calibrate the force value of the instrument, which not only affects its test accuracy but also brings inconvenience to the operation and use.

In addition, the skeined wire sample of this instrument has a circumference of 1 meter and a length of 500 mm after hanging. The instrument is bulky and expensive.

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