What is the reason for the down quilt leaking/running away?

Every year, some European countries hold large-scale pillow fights. The sky is full of goose feathers, just like a fairy tale world, which makes people fascinated. At the same time, pillow fights also relax the tense work and life mood. This is the scene of many classic movies. A means of displaying romantic life, this also reflects how popular down and feather products are in developed countries. However, in life, it is not so romantic to have down escape. Down is so light that even dry sweeping cannot catch it.

So, why do down comforters leak? Can it be avoided?

There are many reasons for lint leakage:

1. The fabric has poor velvet resistance

2. The quality of down is poor

3. The workmanship of down products is not good

4. Improper use and maintenance

I have read many articles about down leakage in down products. It is very one-sided that the articles only attribute down down to fabric problems. Let us analyze them one by one.

1. The fabric has poor velvet resistance

There are many kinds of duvet fabrics, which can be divided into different materials

Cotton

Full polyester (peach skin, pongee, etc.)

Polyester-cotton blend (TTC)

Polyester-cotton interweaving (soft silk, etc.)

Interwoven silk and cotton (cotton and silk)

Viscose fiber (Tencel, cotton, etc.)

Nylon, etc.

Regardless of the material, it can be divided into:

Plain fabric

If the same yarn count and density are used without coating,In the case of plain weave, plain weave is larger than twill weave, and twill weave is larger than satin weave, because plain weave means yarns cross each other in pairs with small gaps; twill weave means jumping one yarn; satin weave means jumping multiple yarns. It’s obvious that the larger the gaps in the yarn, the greater the potential for linting.

Fabric anti-velvet treatment:

Calendering and anti-lint: The fabric is rolled with a calender to reduce the gap between the fabric yarns to achieve the anti-lint effect. In the past, the calender load was only 30 tons. Now, with the improvement of the process, the calendering The optical machine load can reach 120 tons. Therefore, many fabrics that could not be calendered and velvet-proof in the past can now achieve excellent velvet-proof properties. This is why many articles now seem to have very funny theories.

Coated anti-lint: Apply a layer of polymer compound on the back of the fabric. It forms one or more films on the surface of the fabric through adhesion, which not only improves the appearance and style of the fabric, but also increases the functionality of the fabric and gives the fabric more physical properties.

Therefore, many articles say that if the fabric is not coated, it will not be velvet-proof, which is completely wrong. As long as the fabric density is sufficient, there is absolutely no problem with the velvet-proof effect.

Each consumer area has different fabric preferences

For example, low-end products: Japan and Italy like polyester-cotton TTC fabrics

Germany and France like 233,280 cotton fabrics

The United States and some developing countries like small jacquard cotton fabrics

Some small countries in Europe and Latin America like 233 peach skin

But it’s not absolute, it’s just a certain preference.

In China, because there is no absolute oligarch in down products, or there is no absolute professional brand, the fabrics are very confusing, and the practitioners are basically export-oriented enterprises that turn to domestic sales to register a brand, which is all leftover from export. Fabric, whatever is used for it. Therefore, no matter what yarn count the fabric is, it is available. For example, low-end 233 peach skin fabrics are available, ranging from 100% cotton fabrics to 40S fabrics, up to 120S satin cotton, silk and cotton interwoven, etc.

However, each fabric has its limitations. For example, plain fabric has good anti-velvet effect, but it is noisy and not soft enough; twill fabric is not light and thin enough; although satin fabric has a soft feel and low noise, it cannot meet the anti-velvet index. For example, five coins fly three timesSatin, it spans three yarns, so the gap is relatively large and the velvet runs easily.

Therefore, don’t just use fabrics to evaluate whether down products will leak. Maybe inferior fabrics will cause down quilts to leak. But unless it is a very poor fabric, the probability of fabrics causing velvet is not very high. big.

2. The quality of down is poor

Down is a very complicated thing. We do not separate duck down and goose down, because no matter which type it is, the composition inside is similar. The down quilt or down jacket you buy contains the following components:

Down (down), velvet, hair pieces (neck hair), wool, damaged hair, immature velvet, land bird hair, impurities, etc.

No existing machine can extract 100% down, so many online stores often use 100% down filling as a publicity stunt. This in itself is unprofessional. With today’s technology, if it is ordinary raw materials, it is really rare to produce about 93% down, which can be called European standard 100% down and domestic bedding standard 98% down. Source | Sound of Down Editor | Test ID: testadfdss Please indicate the source for reprinting

Among all the ingredients, velvet, wool, immature velvet, neck hair, etc. are all very small. Generally, these ingredients come out of the product. Generally, the diameter of the down tufts can reach more than 1cm, so they cannot escape from the middle of the fabric or the pinholes. You can think back to your experience of wearing down jackets and see if the ones that come out of the pinholes are usually tiny threads, or are they? The sharp little pieces of hair at the tail are generally called flying silk. The small pieces of hair are basically the neck hair of ducks and geese, and there are no florets of down. Therefore, I can responsibly say that most of the reasons for the down that actually escapes are because there are more flying silk or neck hair inside.

Of course, any down cannot avoid the presence of velvet or wool. Even all down standards in the world have a certain tolerance for these indicators. For example, the Australian standard is 10%, and the Japanese standard is velvet content. 10% of domestic bedding standards.

Therefore, in order to prevent flying silk from running out in the future, the first choice is to choose products with less flying silk content.

3. The workmanship of down products is not good

There are many process factors that can cause the down of down products to run off, such as pinholes, the process structure of the product, the size of the sewing needle used, etc.

Pinhole: The structure of the sewing machine needle is a structure with a lower tip and a thicker top. The sewing principle of the sewing machine is 301 locking connection, that is, the upper thread is connected with the lower thread to lock the fabric, so generally during the sewing process, Once the bobbin thread in the shuttle is used up in a sewing machine, there will definitely be a period of empty treading, that is, the needle is moving but the thread is not, and pinholes will appear. There is no thread in these holes, so it will increase the number of flying threads escaping. risk.

In another case, if the needle breaks, the tail of the needle will be relatively thick, and a pinhole will appear, and it will be very large, which will cut the yarn directly. During use, yarn drawing and other situations will also occur. If it appears, this kind of pinhole is very prone to serious risks of velvet running.

Technology: The structure of down quilts can be divided into cut-through structures and standing lining structures. Down jackets generally have cut-through structures. Let’s take a down quilt as an example: the cut-through structure uses a sewing machine or quilting machine to directly connect the inner and outer fabrics with threads, and the inner and outer fabrics are directly attached; the standing lining structure uses a layer of warp knitting fabric for the inner and outer fabrics ( or other fabrics), and then combine the warp knitted fabrics to form a matchbox structure. It is a three-dimensional method.

The cutting-through structure is to first make a vertical fringe-like structure, then fill it with down, and then do the horizontal cutting-through structure after filling. Because during this process, if the workers are not very careful, the machine needle is very likely to cut the down. , taking part of the down out of the quilt, increasing the risk of down running. This problem basically exists with cut-through quilts, so dark-colored cut-through quilts are rarely chosen by brands. What’s more, some manufacturers, such as duvets that cost one or two hundred yuan on Taobao, will use quilting machines to make duvets to reduce labor costs and cut through both horizontal and vertical threads, doubling the risk of down fleece.

The vertical lining structure is filled with down after the quilt shell is made. Each down-filled grid already exists in advance, and there is no need to use a sewing machine to divide it later. Therefore, the risk of down escaping from the vertical lining quilt will be less than Cut through the quilt.

Needle size: Making duvets has great requirements on the size of the needle. The larger the needle size, the larger the needle hole. Generally, factories use No. 22 needles, which are fast and have ideal pin holes. But the ideal needle for making down products is No. 9 or No. 7. The needle hole is small, but the speed is slow. Factories don’t like to use it, so only some small down products stores use it.

4. Improper use and maintenance

Down quilts are not easy to stiffen, so they are easier to take care of, but at the same timeAnd more delicate. Down products should not be exposed to the scorching sun. Exposure to the sun will make the down filaments brittle and easy to break and form flying filaments. They should also not be washed, as washing will make the pinholes larger. The centrifugal effect of the dehydration process will also throw the feathers out of the pinholes, causing the risk of hair loss. .

If there are children at home who like to play on the bed, or some people are used to lying on the down quilt, because the down is full of air, instant squeezing will cause the air to flow out quickly and bring out the down. Therefore, in order to extend the service life, Please avoid the above misunderstandings during use.

To sum up, down lint loss is a very complicated problem. Down products will have a little bit of lint coming out, but it is not harmful. For the filling materials of the best bedding and warm clothing in the world, a little bit of lint will come out. The drawbacks are insignificant. As long as you don’t believe the advertisements of some low-price products, increase your knowledge about down, and maintain it properly, you can use down quilts very worry-free.