How to polar fleece produced ?

How to polar fleece produced ?

First, please take out our circular loom and weave the man-made fiber silk into a cylindrica

The machine above is weaving, and what comes out from the bottom is this tube of white cloth, which is rolled up after being folded...

weaving process

Circular loom We have previously discussed in "It's cold, it's time to wear thick cotton socks. Did you know that the machine efficiency of knitting socks is 10 times that of skilled workers?" | Interesting Making 》As mentioned, the knitting speed is very fast! Looking at the knitting process at normal speed, you can only see the needle carrying the white thread, quickly disappearing under the horizon...

If you slow down and look closely, you will see that rows of needles first hook the thread coming from the spool, and then pull the thread downward to weave.

For the next specific weaving process, I found a mechanical schematic diagram, which seemed more intuitive. Viewed from the side, the hook on the needle pulls the thread from the reel, and then sets these loops together to connect one loop to another.

Gray cloth treatment

After the cloth is woven, it must be washed, dried, dyed, and washed and dried again.

 

hat the cloth was rolled into a rope before and then sent to be dehydrated and dried. After the dehydration is completed, the rope must be loosened first to allow the cloth to return to a cylindrical shape.

 

Then cut the fabric tube from the side, and a whole piece of fabric will come out.

Gray cloth bristles

How to form fluff particles on the surface of the fabric. The first step is to form a layer of fluff on the surface of the fabric. This process is called brushing or grabbing or pulling.

Rows of steel brush curved needles are inserted into the yarn to break the polyester fibers, and then draw out the fibers to loosen the loop yarn, forming a thick layer of fluff on the cloth

As can be seen from this schematic diagram, the surface we brushed is very fluffy, which will create a larger gap layer to isolate the air, thereby reducing the convection of the fabric with cold air, and the thermal insulation effect will be better. Of course, in order to enhance the thermal insulation effect, you can brush both sides

Combing and shearing

After that, you need to comb the hair to make the fluff more supple, and use a spiral cutter to cut the fluff of the cloth into a uniform length to make the surface more tidy~

High temperature shaken particles

The reason why it is called polar fleece is because of the next "polar fleece" process. The fluffy fabric is put into a pellet machine that looks like a drum washing machine, and is turned and balled by the air at high temperatures. Anyone who has ever taken off a sweater in winter knows that polyester sweaters are particularly prone to static electricity. Here is the operation. First, let the artificial fiber rub to generate static electricity. The fluff will be bent and twisted by the electricity, forming many small balls, forming a particle effect. The surface fluff is twisted into balls, which further locks the air and reduces air convection with the outside world, so it is warmer (suddenly I don't want to cut off the naturally knotted wool balls on the sweater...)