It is normal for down jackets to have slight velvet, and it is not a quality problem. Generally, down jackets will encounter velvet. What causes down jackets to become velvety? We together look!
Fabric structure analysis
Down fabrics are divided into materials, generally including: 100% cotton, 100% polyester, and 100% polyester-cotton blended fabrics. , polyester-cotton interwoven, silk-cotton interwoven, viscose fiber, nylon, etc.
Regardless of the material, the fiber structure can be divided into: plain weave, twill weave, and satin weave. If the yarn count is the same, without coating treatment, the density is plain weave > twill weave > satin weave, because plain weave means yarns cross in pairs with the smallest gaps; twill weave means skipping one yarn; and satin weave means jumping multiple times. Root yarn. The larger the gaps in the yarn structure, the greater the possibility of down linting.
Solution: 1. Grind through a calender Press to compress the yarn gaps to become smaller; 2. Apply a layer of polymer compound coating on the back of the fabric.
Down quality analysis
The basic components of duck down and goose down include: down, velvet, wool pieces, wool silk, Immature velvet, impurities, etc. Among them, velvet, wool, immature velvet, etc. are very small, commonly known as flying silk. Basically, these components come out of down products.
No down can avoid the existence of flying silk. All down standards in the world have a certain tolerance for flying silk. In most countries, it is 10%. Therefore, in order to avoid flying silk from down jackets, try to choose products with less flying silk content.
Product manufacturing process analysis
There are many factors that cause down products to be drilled due to the production process, such as pinholes, Process structure, sewing needle size, etc.
▌Pinhole
During the sewing process, it is inevitable that the needle will be stepped on and the needle will break and produce a pinhole. , these holes are threadless, flying threads will escape from these holes.
▌ Technology
Down jackets generally have a cut-through structure. That is to first make a vertical strip structure, then fill it with down, and then cut it horizontally. During the cutting process, the needle will most likely cut the down, bringing part of the down out of the quilt surface, which will increase the running rate. Velvet risk.
▌Needle size
The ideal needle for making down products is No. 9 needle or No. 7 needle. The needle hole Small, but slow, workers don’t like to use it. In order to pursue production efficiency, many factories will use No. 11 needles, which are fast and have decent needle holes, but increase the risk of lint drilling.
Analysis of maintenance methods
Scenario 1
What is the situation at home? Some children like to play on the bed, or some people are used to lying on the down quilt, because down is full of air, and a momentary squeeze will cause the air to flow out quickly and bring out the down.
Scenario 2
Down products should not be exposed to the scorching sun. Exposure will make the down filaments brittle and easy to break and form flying filaments. .
Scenario 3
It is not recommended to wash down products at home. Washing in a household pulsator washing machine will enlarge the pinholes and cause dehydration. The centrifugal action will also throw the feathers out of the pinhole, causing velvet.
Therefore, in order to extend the service life,
Please avoid the above misunderstandings during use.
