Visual inspection

Just look at the method of identifying the fiber with your eyes. The principle is based on the combustion characteristics and appearance, color, luster, length, thickness, thickness, strength, elasticity, and miscellaneous conditions of the appearance of various fibers, and rely on human sensory organs to qualitatively identify textile fibers. This method can quickly identify various textile raw materials and do not use the instruments to be extremely practical.

The identification of color cotton and dyed cotton

The difference between color cotton and dyed cotton is mainly to look at the color on the cross section of the fiber. If it is colorful cotton, the color on the cross section of the fiber section gradually fades from the center of the section to the edges, and the edge of the section of dyed cotton fiber section fiber is the most darker, until the color of the center color The fate gradually fades, because during the spinning process, while the inner and outer layers of the fiber are metastasized, individual fibers have a significant squeezing effect on the inner fiber.

The identification of ring spinning and airflow spinning

The ring spinning is obtained on the fine gauze machine, and the twisting direction of the spinning yarn is Z twisted, so the twist is twisted with S, and the fiber can be separated.

The airflow is to form a vortex through the airflow rotation, so the fiber on the surface of the yarn is entangled with each other, and the internal fiber has a certain twist. Essence

Therefore, through the above methods, the two can be distinguished, and the yarn of the same gauze, the strength of the ring spinning is better than the airflow spinning.

The identification of ring spinning dual -share line and Sai Luo spinning

The ring spinning is obtained on the fine gauze machine, and the twisting direction of the single gauze is Z twisted. The Sai Luo spinning was fed in the fine yarn and extended area from two beard with a certain distance. Z “twist. Therefore, if you look at the co -twisting direction of the yarn, you can distinguish between the two.

The identification of jet spinning and vortex spinning

The jet gauze structure is divided into two parts: gauze core and outsourcing fiber. The gauze core is parallel and twisted. The structure is relatively tight. The outsourced fiber is loose and irregularly wrapped around the gauze. The vortex gauze structure is also divided into gauze core and outsourcing fiber. The core fiber is arranged in parallel, no twisting, and the outsourced fiber is wrapped on the surface of the yarn core on the surface of the gauze, and the proportion of the outer rules screw packets is high, accounting for 60 total fiber 60 About %, so that the fiber of the internal twist is almost completely covered, overcoming the problem of jet gauze core, the surface fiber arrangement is closer to the traditional ring gauze, and the structure is tight.

Therefore, as long as the outer fiber is peeled, whether the inner fiber is twisted with whether there are rules for the outer wrap fiber, the two can distinguish the two. And jets are mainly spinning chemical fibers that are cotton blending, purified fiber and its blended yarn. There is no jet spinning in cotton.

The identification of combing yarn and tight spinning yarn

As long as the tight spinning gauze is looking at the entire cloth yarn, there are very few cotton nodes, the dry strip of the yarn is also very uniform, and the cloth surface is very smooth. In addition, you can also see the disassembly yarn. If it is tightly spinning, then the whole yarn has few hair feathers, the surface is also very smooth, and the strength is better than the combed cotton. The whole cloth surface is thinner than combing cotton. So we can distinguish them from the above three aspects.

The identification of tight spinning and tight spinning yarn

The similarities between the tight spinning yarn and the Saixuo spinning yarn are that the grid plate and the wind suctioning device are added in the twisting triangle area of ​​the traditional ring spinning. few.

The difference is that the tight spinning is a single yarn on the fine gauze machine and the Sai Luo spinning is fed two thick yarn on the fine yarn machine to maintain a certain distance. Due to the transfer of the twist, there is a small amount of twist on the single gauze strip. After the combination, it is further twisted into a yarn similar to a co -shaped, and it is wrapped around the tube.

The identification of the whole cotton bamboo seal and linen yarn

The thickness of the bamboo knots, the distance between the bamboo festivals, the length of the bamboo festival, the length of the bamboo knuckle, and the veil of the veil are designed in advance, so there are certain rules. The spinning yarn of linen is performed in the case of semi -gels, and the length of the hemp fiber is poor and the length is different, so the spinning yarn is severe and uniform, and the vertical of the yarn chip is not uniform. The distance between the bamboo junction is not regular. So as long as you start from these characteristics, you can distinguish them.

The identification of cotton yarn and human cotton yarn

1. When the cotton yarn does not burn Mars, the cotton yarn will rush to Mars, and the burning speed is faster than the cotton yarn.

2. The cotton yarn is wet with water, and its strength will not decrease, and the humidity of the cotton yarn is moist, and its strength is greatly reduced.

3. Put the cotton yarn and human cotton yarn in a cup of water at the same time. Because the penetration of the human cotton yarn is better than that of cotton yarn, the cotton yarn sinks into the bottom of the cup, and the cotton yarn is slightly slower (but it is worth noting that it has just passed the processing, and did not take it. The cotton yarn washed with a degraded alkali liquid, due to the penetration effect of the alkali, it will be sink into the water immediately)

For the above three methods, we can distinguish the cotton yarn and human cotton yarn.

The identification of real silk and wool yarn

When the real silk and the wool yarn are burning, they have burnt feathers, so we cannot distinguish it at this point, so we can only distinguish the difference between the two fibers of the two. Silk glue, so the two silk is separated, if it is a real silk number of 1/22d/20d, it will turn 14 to 16, and we can also distinguish it quickly from the gloss. In addition, from the number of spinning films, 1/22D/20D is almost 500 gauze. This gauze can only be achieved by embedded spinning, so we can also distinguish from the thickness of the raw materials.

The identification of cotton yarn and bamboo fiber yarn

1. When the cotton yarn does not burn Mars, the bamboo fiber yarn will rush to Mars, and the burning speed is faster than the cotton yarn.

2. The water yarn is moist, and its strength will not decrease, and the bamboo fiber yarn is moist with water, and the strength decreases, only about 60%of the dry strength.

3. Put the cotton yarn and bamboo fiber gauze in a cup of water at the same time. Because the penetration of bamboo fiber yarn is better than that of cotton yarn, the bamboo fiber gauze sinks into the bottom of the cup, and the cotton yarn is slightly slower (but it is worth noting that just before the past before passing the previous past Treatment, the cotton yarn that is not washed with degraded alkali fluid will be wet into the water immediately due to the penetration effect of the alkali).

4. The shape of the cross -section under the electronic microscope is different.

The identification of polyester cotton yarn and polyester sticky yarn

Twist the two yarns, and then look at the length of a single fiber; whether the polyester cotton yarn is polyester short fiber or cotton fiber is usually cotton type. The length is 23mm ~ 45mm. If the polyester sticky gauze is cotton -type gauze, its cutting length is 38mm, the cutting length of the medium long yarn is 51mm ~ 76mm, and the cutting length of the hair type is 76mm ~ 114mm. We can distinguish them with the length of the fiber.

The identification of three types of heavenly silk

TSG100 is a kind of fibrous silk. If it is processed into a finished TSG100 -day silk yarn surface, it has very delicate fluff on the surface.

The TSA100 is a kind of fibrous silk. If it is processed into a finished TSA100 -day silk yarn surface, there is no fluff on the surface.

TSLF100 is a silk that can be primary fiber and cannot be primary fibrosis. If it is processed into a finished TSLF 100 -day silk yarn surface, there are hair feathers on the surface, and many hairy feathers are uniformly distributed in the whole yarn.

Different from polyester and nylon

1. Whether the polyester is a polyester of the cation, or whether it is stretched and low -bullets, the color of the flame during burning is light red and has a aromatic smell.

2. Whether the nylon is stretched and low -bombed, there is odor when burning. The color of the flames of white or light -colored nylon burning is pale orchid, while the color of the flames of black or dark nylon burning is pale yellow.

How to identify light wire and diamond wire

The luster of the light and the diamond wire is almost the same, and the surface of the silk thread is shiny.

In the spinning wire, the content of TIO2 eliminates added with light silk and diamond wire is different, and diamond wires have almost no TIO2 elimination agent, so the spinning properties are poor, so there are very few single fibers of the silk thread. Therefore If you need to count the single fiber, you can come to identify them.

The identification of ordinary polyester and cation polyester

If both are raw silk, then we only need to look at the gloss. The luster of the cedic polyester is between the half -light and light, and it belongs to the sub -light type, so we can distinguish them from this point. If it is a finished product, then the deep color is cation polyester (except the color weaving fabric). Disassemble a few silk threads and pull it a few times.

The identification of low bombs and empty wires

Low bombs (twisting need to be twisted) should not be pulled too much, and the fiber always shows a curling state. In the process of deformed processing, the fiber is deformation generated by the vortex of the fiber through the airflow of the nozzle, so that the fiber and the fiber are tangled with each other. Therefore, you can not separate the entangled fibers. Using this, we can distinguish these two silk threads.

Differential of polyester, nylon, acrylic

3. Shi Lun, whether it is stretching and low bombs, has odor when burning, and the color of the flame during burning is light red.

You can use this to identify these three fibers.

The identification of cotton yarn and linen cotton and linen sticky yarn

If the cotton yarn is not a bamboo gauze, whether it is a ring spinning or airflow, the dryness of the whole yarn is basically uniform. The spinning yarn of linen is performed in a semi -gum, and the single fiber of the hemp fiber is short, so as long as the linen contains linen in the yarn, no matter how much the blending ratio is, the spinning yarn is always unevenness. In the vertical presentation of the yarn chips, the distance between the irregular thickness and thickness, the distance between the bamboo festivals is not regular. So as long as you start from this feature, you can distinguish them.

1. Whether the polyester is a polyester of the cation, or whether it is stretched and low -bullets, the color of the flame during burning is light red and has a aromatic smell.

2. Whether the nylon is stretched and low -bombed, there is odor when burning. The color of the flames of white or light -colored nylon burning is pale orchid, while the color of the flames of black or dark nylon burning is pale yellow.

The above is the introduction and description of Polyester Dobby Cation fabric, I hope it can be helpful to you.