Apparatus and method for measuring fabric hairiness and hairball shape and pull-off force

Abstract

The invention relates to a device and method for measuring the hairiness and hair ball state and pulling-off force of fabric. The device is composed of a cloth sample barrel of rolled fabric, a rotating mechanism driving the cloth sample barrel, a friction mechanism enabling a cloth sample to be in a pilling state, a pulling-off mechanism clamping and pulling hairiness and hair balls off, an optical measuring system used for observing the hairiness and ball top state of the cloth sample, a collecting and weighing mechanism used for collecting and weighing falling fiber and ball tops, a data collection and control system and a computer. The method comprises the steps of measuring the height and the amount of the hairiness and the size and the number of the ball tops after the cloth sample is packaged in a rolling mode with the same tension, sampling through rubbing to enabling the cloth sample to be in the pilling state, and measuring the amount of the hairiness of a friction sample which is in process and is finished , the number of the ball tops of the friction sample which is in process and is finished, the pulling-off force of the friction sample which is in process and is finished and the abrasion amount of the hairiness and the ball tops of the friction sample which is in process and is finished at the same time. The device and method are exquisite, practical, accurate and quantitative. The purposes that one machine is used for multiple purposes, and multiple indexes are measured at one time are achieved. The device and method can be used for sampling pilling fabric, measuring the amount of the hairiness, the number of the ball tops, the pulling-off force and the abrasion amount of the hairiness and the ball tops and comprehensively analyzing and assessing.

Description

technical field [0001] The invention relates to a device for measuring the apparent hairiness of fabrics, the shape of hairballs and the pull-off force, and an evaluation method for predicting the pilling resistance of textiles. Textile quality evaluation and testing technology field. Background technique [0002] Pilling is a major appearance defect of the fabric, which is gradually exposed during wearing and use. Commonly used fabric pilling performance measurement devices and instruments are: domestic YG511 pilling tester, British ICI pilling tester, the basic principle and structure are the same. It wraps the fabric to be tested on a rubber roller, and puts it into a hexahedron roller whose inner wall is a cork board and rolls freely. After taking it out at regular intervals, compare it with the photo standard sample and evaluate the grade. The disadvantages of this method are: [0003] 1. It takes time to occupy an area, and it must be equipped with knitting machine...

AI Technical Summary

Problems solved by technology

[0003] 1. It takes a lot of time to occupy an area, and it must be equipped with knitting machines of various needle sizes, and manual knitting is required

[0004] 2. After the sample is rubbed, it is evaluated by manual visual inspection, and the error is large

[0005] 3. At present, silicone is widely used in the finishing of knitted fabrics. After the woven sheet with silicone rubs against the cork board in the drum, the cork board is stained, and the cork board becomes smooth quickly, and the friction force gradually decreases until it disappears. Seriously affect the accuracy of the test and the reproducibility of the test

[0007] 1. It takes a lot of time to occupy an area, and it must be equipped with knitting machines of various needle sizes, and manual knitting is required

[0008] 2. The friction time of the instrument is long, the sample area for the test is small, and the representativeness is poor

[0009] 3. The error of visual rating or weighing rating after friction is large

[0010] 4. Raw materials with different fineness and blending ratio have different densities with different knitting machines, so it is difficult to formulate feasible standards

[0011] 5. The abrasive used can only use felt cloth imported from the UK, which is expensive and difficult to adapt to the friction requirements of different raw materials

[0013] Since it is only a static evaluation of the fabric, and it is aimed at the evaluation of the pilling results, it lacks objectivity and intuition

On the other hand, the friction time of the instrument is long, the area of ​​the test fabric is small, and the representativeness of the sample is poor. After friction, the errors of both the qualitative visual method and the quantitative weighing method of cutting feather and badminton are relatively large.

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