When it’s freezing, the biggest concern is: What’s the warmest thing to wear?
Let’s analyze the analysis.
The dignitaries wear more “slugs” that are the skin, including fox skin, fur and so on. Poor people only wear “robes”, “no clothes, with the same robe” said is this thing, is roughly filled with disordered hemp, animal hair and so on double-layer edgy clothes.
How does the warmth of cotton fiber sit?
Cotton fiber as we have been used for centuries of warm fiber raw materials, its warm performance is relatively good. In the experimental temperature of 20 degrees C plus or minus 2 degrees, the relative humidity of 65% of the environment, 133.2 grams of cotton flocs per square meter, insulation rate of 66.5, heat transfer coefficient of 4.5w / m .
However, the warmth of cotton fiber has a lot to do with its quality. Cotton fiber is divided into fine velvet cotton and long-velvet cotton two kinds, long-velvet cotton fiber thin and long, fiber length is generally more than 33mm, line density in 6500 meters or more. At the same time, we should also consider the maturity, strength, elasticity and other factors of cotton fiber.
Many people now feel that cotton clothing or cotton is used relatively thick, it is because the absorption humidity of cotton fiber in natural fiber is relatively high and elastic and relatively poor.
Down, even in the relatively warm south has become the vast number of people eating melons autumn and winter festival popular one of the natural fiber raw materials. There is a difference between duck velvet, goose velvet and flying silk in terms of type.
What the? And velvet?! Swans are protected animals, even if the number of farmed and processable sub-second-generation “velvet” is very small, the opportunities encountered in the market is also zero. Let’s just get talking! From the color is divided into white velvet, gray velvet.
So, what is a down jacket?
First, it is stated that down does not refer to all the feathers of ducks and geese. Down is an animal protein fiber, especially in the belly of a goose and duck, into reed-flowered fluff and flaked feathers.
Now shake the real thing, say how much down can be warm. In terms of down sin itself alone, their average insulation rate is more than 80%, and the average thermal conductivity is 2.0. Compared with cotton fiber insulation rate of about 60%, thermal conductivity of 17 or more you can see how strong down insulation.
Eat melon masses wonder, that duck and goose velvet insulation effect which strong?
In previous years, the down products industry has had the so-called “goose and duck war.”
In this regard, the China Garment Association down clothing and products professional committee made it clear: “the same amount of velvet goose and duck down in the weight, elasticity, warmth of the two are not very different.” In addition, the difference between white and gray velvet is only in color, as a filler has no effect on the warmth of textiles.
Attention! It’s important to come. An important measure of the quality of a down jacket is the amount of down, the amount of downand and the fluffyness.
Fluffyness is an important index to measure the degree of insulation of down products. Simply put, the same weight of down, the more space it occupies, the higher its fluffyness, the better insulation.
The amount of velvet is that this textile down in the “down” content. Down products are filled with down and feather slivers, the general lower the amount of down products more expensive. The easiest way to detect it is to squeeze it, the faster it is restored, the higher the lint content.
The downjacket is the weight of all downs filled in a down product. How much weight a piece of down in a textile is the root of how much insulation it can be.
May quietly tell you that the recent popular ultra-light ultra-thin down jacket, in fact, is in the amount of downjacket to do the article. Down to put less, natural and light and thin it …
Wool is one of the earliest natural fiber raw materials used in human textiles. In the textile and garment industry, wool refers narrowly to sheep’s wool. Wool is a natural animal protein fiber, under the microscope can be seen wool fiber has a natural curl, vertical and scale cover.
The insulation and thermal conductivity of wool are slightly lower than down, but higher than cotton fiber. Textile fabricmade from wool fiber, because of the natural curling of wool and difficult to compact, thus forming a static air layer, it has excellent insulation performance.
In the experimental temperature of 20 degrees C plus or minus 2 degrees, the relative humidity of 65% of the environment, 153.9 grams of wool floc slot sliverper per square meter, the insulation rate of 92.50, heat transfer coefficient of 0.6w / m .
Wool fabrics are divided into fine and coarse textiletwo, now used in the production of coats, sweaters, carpets and other textiles.
Note that the important things are only said once! There is no so-called 100% of wool fabrics, the state regulations as long as the content of wool fiber more than 95% can be called pure wool fabric.
Cashmere is a layer of fine fluff that grows on the outer skin of a goat, with a thick hair root. The average fineness of cashmere fiber is more than 14-16um, the length is generally 35-45mm, according to its color is divided into white, green and purple velvet.
Now winter cashmere sweaters, cashmere coats are basically a standard one-piece.
But why would anyone feel the weight of the fur coat and not eat it? Seriously, we’re talking about cashmere, a mid-class over-knee cashmere coat that never weighs more than two kilograms. Well, the price is also a bar.
Cashmere textiles are expensive, so it is important to distinguish their authenticity.
It is not scientific to eat melons like to burn on the hand, because you inevitably encounter rabbit hair, wool. So what’s the go-to? Or, send to a professional inspection institution sit with the help of instrument testing! Even industry experts can’t tell whether a wooltextile is actually a cashmere fiber fabric with the naked eye and feel.
Note that whether it is wool or cashmere fiber fabric, can not afford the ball of wool fabric, textile scientists are still busy alive, has not yet invented. When a clothing store owner says he can’t afford a 100 percent ball, you have to look at your own pocket.
What the! Silk? Weaving silk silk also to keep warm fiber party together?
There is nothing wrong with it, it is that silk includes mulberry silk, silk silk and so on. Silk is an excellent protein fiber and is the only natural filament fiber raw material that is actually used. Silk fabrics made of silk, of course, are used in summer. However, silk is used for winter winter protection.
Silk is definitely one of the best choices for winter-loving students who like to rely on their beds, because they are super lightweight. Simply select the quilt soldering with silk fibers according to summer standards.
However, silk is also poorly breathable and less elastic.
Alpacas are “god beasts” grass mud horses, native to South America. Alpaca fiber color is white, brown, pale tawny or black, fiber does not contain grease and lanolin, no odor, is hollow fiber, elasticity is good, not slow water, strong and warm are much higher than wool.
In the experimental temperature of 20 degrees C plus or minus 2 degrees, the relative humidity of 65% of the environment, 150.6 grams of heavy camel fluff tablets per square meter, the insulation rate of 89.20, heat transfer coefficient of 0.9w / m.
However, alpaca fluff yield is very low, an adult alpaca can only produce 2 or 3 kg of alpaca fluff fiber per year. Even the hair of a long-haired rabbit can’t keep up with it. China began to introduce alpacas for breeding in 2002, but the overall scale is far from meeting the needs of industrial textile. At present, the domestic alpaca velvet is still basically in the “sell” stage.
Mahehairie is certainly not the hair of the seahorse, but the hair of the Angolan goat. The term “mahai” is derived from Arabic and means “silk-like mountain wool fabric”. Although it is very busy in the market, but because of its fiber is coarse, natural curling is also small, in terms of insulation performance is not the fiber strength of mohair.
From the laboratory data, in the natural heating materials, the best warm when the number of down, followed by silk, and then back is camel cashmere, cashmere, wool and cotton fiber.
However, it is not easy to figure out which fiber textile is more “warm” for you.
Because this also depends on personal preferences, for example, some middle-aged and elderly people like the thickness of cotton wool … More to see the personal economic capacity, a bed of 5 pounds of cotton is only about a hundred yuan, and a bed of 5 pounds of silk is at least a few thousand yuan …
To sum up, the natural fiber used in winter dress does not have obvious advantages and disadvantages, for the ordinary people to eat melons, choose the best one for you is the most warm.