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About the identification method of cashmere:
Intuitive identification: real cashmere is particularly fine, with different lengths, while the velvet thread forged by the filament is thicker, the length is consistent, most of the length is about 2 inches, and the former is delicate and light after weaving into the fabric, and the latter is hard and heavy. The weight of a cashmere sweater used to weave a cashmere sweater from real cashmere or fine rabbit down generally does not exceed 500 grams, while the general wool yarn is between 500 grams and 1000 grams.
Broken wire identification: real cashmere picks out the wool, pinchs the two ends of the cashmere with both hands, and breaks it with a little force, and the fiber silk forged with great force may not all be broken, and it is relatively strong.
Fire identification: real cashmere is ash after fire, and the fiber filament is forged in gelatin.
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100 cashmere testingThe methods are:
Detection method 1: touch.
1) Cashmere sweater: The surface of the clothes is covered with a thin layer of velvet, which feels similar to a plush toy, and feels very soft and warm.
2) Cardigan: The surface is a little hairy, but the density is not high.
3) Acrylic shirt: the surface is basically hairless, and the feel is smooth.
Detection method 2: grasp, grab and let go.
1) Cashmere sweater: slightly recovered, with a little wrinkles.
2) Cardigan: There is little recovery and more wrinkles.
3) Acrylic shirt: fully recovered, no wrinkles.
Detection method 3: burn, smell the smell during the burning, and look at the ash stains after burning.
1) Cashmere sweater: The burning rate is normal, there is a smell of burning hair, and the ashes after burning turn into fine ash when touched lightly.
2) Cardigan: The burning rate is normal, there is a smell of burning hair, and the ash formed is finer, but there are some small particles.
3) Acrylic shirt: The burning speed is very fast, the flame is large, and there is black smoke, and there is no smell of burnt hair. After burning, small pieces are formed.
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I can only tell you about my own experience, I don't quite understand more.
In the winter of 08, I left Tianjin to work in Beijing, and when I left, my uncle accompanied me to Binjiang Road to buy me a coat, we turned a lot of counters, and they all insisted that the coats they sold were cashmere, but they were very prickly, and they felt like countless extremely short steel needles, and some of the short jackets were still licked and sold for more than 600 despite the poor feel. Later, according to the analysis of the Internet and friends, a large amount of broken wool must have been added to it, which is why it is so hard and so prickly.
Later I switched to FlowersChilde (sorry I had to add a pip to break the character in front, otherwise the word 2b blocking will not be submitted) counter, and people also said that the coat was cashmere, but it was very soft, not only the hair was soft, but the whole coat was soft - that feel was something I had never seen in this dirt bun, of course I bought it. Winters in Beijing are very cold, and sometimes the wind is quite strong, this coat is very warm, although it is blown by the wind and floats like a windbreaker, it is indeed lighter and softer. At the same time, I gradually discovered the characteristics of cashmere, because I am a big smoking gun, I light a cigarette everywhere I go, I remember the first time I met a windy day, I held a cigarette in my hand, the wind blew up my coat, just hit the cigarette butt, extinguished the cigarette butt, made me feel distressed......More than a thousand bought coats, ......I patted the cigarette ash on my coat in pain, and was surprised to find that there was no trace left!
The hot spot feels the same as it did – it's like it hasn't been burned! The same thing happened several times later, and the result was still the same ......Then I went numb, and my coat was burned by cigarette butts and I didn't feel sorry anymore - nothing happened anyway.
To sum up, a good cashmere coat is extremely soft, lightweight, not afraid of cigarette butts, and even when I put my hand in my pocket, I can clearly feel the elasticity of the fall.
It's almost the New Year, and I'm going to buy a better coat for my partner, but there are ...... cashmere products on the marketIt seems that there is a rule that more than 30% of cashmere can be called cashmere products. So although the goods of Dangdang and Jingdong ** look quite cost-effective......Still don't dare to buy it - don't even think about the tatters on the **.
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Generally speaking, cashmere products can be divided into two categories: pure cashmere products have a cashmere content standard of more than 95, and cashmere products have a cashmere content standard of more than 30, and those with a cashmere content of less than 30 cannot be called cashmere products. Therefore, when buying cashmere sweaters, it is necessary to carefully identify, and the usual method is to look, double, and pinch three.
One look, that is, look at the brand first. It is necessary to choose a brand that stresses credibility, quality and reputation, which can save a lot of trouble and worries. Do not choose cashmere products without factory address, trademark and without indicating the cashmere content.
Then look at the product quality, the appearance of high-quality cashmere sweater is soft and shiny, the suede is plump, the hair type is strong, the surface of the surface is shrunk with a layer of fine velvet, the horizontal and longitudinal coil density is uniform, if it is taken care of in bright light, it is more obvious. Second, that is, when buying, use your hand to shake. Because cashmere is a very soft fabric, lighter than wool, it is an easy way to distinguish cashmere products from wool products when you buy them.
Three pinching, that is, pinching with your hands. Cashmere sweaters have a strong fluffy feel and are extremely flexible, so when you buy them, you can pinch them with your hands and observe their resilience, which is both a way to distinguish their authenticity and how to distinguish their advantages and disadvantages.
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Touch: The surface of the cashmere sweater is 60-70 mm, and the wool is finer than ordinary wool, with an average fineness of 14-16um, so it feels silky and comfortable to the touch. But there are some cashmere sweaters in the mall, which are very slippery to the touch, and there is a slippery feeling when the fingers are rubbed after touching, which is that the clothes are sprinkled with talcum powder.
Grip: The wool of wool is medullary and solid, while the wool of cashmere sweater is hollow without pith, so it is quite elastic. Grasping a handful with your hands, there is a feeling of glutinous rice elastic plate.
Put: Grab a handful of cashmere in your hand, and then let go, cashmere will immediately return to flatness because it is animal protein, and it is difficult to wrinkle.
Photo: Take a cashmere sweater, take a look at this bright place, and rub the density of the cashmere sweater, the texture is clear and neat, and it is not easy to transmit light. If the density is loose, it will appear chaotic and easy to transmit light.
A good cashmere sweater not only requires good cashmere purity, but also requires a certain amount of cashmere. This is an important sign for judging cashmere sweaters.
Weigh the weight of the cashmere sweater, the amount that is too light may be discounted, and the manufacturing density is not enough. Anything that is too heavy may be mixed with wool.
Burning: When the cashmere sweater is burned, it not only emits the burning smell of protein and flint, but also burns slowly. When the wool is burned, it also has the burnt smell of protein and flint, but the fiber ash shrinks into a ball quickly due to the burning of Chinese fiber.
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Take a small piece of wool, light it with a lighter, and gently rub the ashes with your fingers. If there is something large and inexhaustible in the ash, it means that the purity of the cashmere is not enough and contains chemical fiber components. If the ash is very uniform after combustion, there are no large particles.
And the smell is strong, it means that the hair quality is good, if the smell is light, it means that the purity of cashmere is not enough, and it contains cotton or other components.
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You can take a part of the sample and take it off the garment, and then use the flame to test the part of the sample and you can feel the smell of burning hair after it burns, which means that it is a cashmere product.
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Soft, not prickly, the hair is not very long, there is no shrinkage, no washing, but also depends on the number of threads. In general, rub your face against the light to see the length of your hair. However, there are many counterfeit products now, and sheep wool is the worst, generally goats and cashmere.
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As long as the detection content of cashmere is more than 95%, it is recognized as pure cashmere, which is an international standard, and it is enough to remember this standard.
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Difference Between Cashmere and Australian Wool:
1. **Different. Cashmere is a thin layer of fine fleece that grows on the outer skin layer of goats and covers the roots of goat's coarse hair, while Australian wool refers to Australian wool.
2. The growth site is different. Only the cashmere that comes from goats is called cashmere, which is cashmere, which is what we call cashmere; The Australian wool is the Australian shepherd, and most of the sheep are merino sheep.
3. The advantages are different. Compared with Australian wool, cashmere has the advantages of natural luster, softness, purity and showiness. Australian wool is characterized by its high fiber density and excellent wool quality.
**Velvet is a new type of fabric with a beautiful appearance. The raw materials of island velvet are island silk, referred to as Abai goat, long fiber, warm silk, strong and wear-resistant, gold velvet and other fabrics, "soft", known as "fiber diamond", and enjoys the reputation of "cashmere" in the world. >>>More
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1. Catalytic combustion.
Catalytic combustion gas sensor uses the thermal effect principle of catalytic combustion, under certain temperature conditions, the combustible gas undergoes flameless combustion under the action of the carrier surface of the detection element and the catalyst, and outputs an electrical signal proportional to the concentration of the combustible gas. By measuring the magnitude of the change in the resistance of the platinum wire, the concentration of flammable gases is known. It is mainly used for the detection of flammable gases, with good output signal linearity, reliable index, cheap, and no cross-infection with other non-flammable gases. >>>More
Let's take a look at these two national standards.
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Standard number: JB T 5705-1991
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