Xiaobian: I Learned Knowledge Of Clothes And Fabrics Four

Tex is the number of spinning yarn T is the yarn W weft yarn R twisted yarn D cheese yarn.

J Combed yarn K knitted Jersey yarn JK combed knitted Jersey yarn Q yarn

Combing, compared to carding yarn, short fibers and impurities, fiber straight parallel, yarn evenness, good finish.

Spinning process of ring spinning (for reference only)

Cotton Blending -- clear flower -- Carding -- pre combing -- combing -- Blending -- roving -- spinning yarn -- yarn

The above is combed yarn. If you remove the two processes of "pre" and "Combing", it is the combed yarn. General spinning is also a process. Sometimes a process can be done 2 times, such as mixing. And a process can be divided into several processes, such as flower cleaning. If the yarn is to be woven, it will be "wrapped".

The following is the weaving process.

Winding - warp preparation (warping - sizing - through knot) - weft preparation

Formula =0.0038* twist square * multiplier * raw material difference rate

Shrinkage rate of double twist yarn (reverse twist) = initial twist shrinkage ratio (1-1/ number of twisting roots) + twisting shrinkage ratio

Yarn twisting is directional, and the direction of twisting is the direction of yarn twirling. There are two kinds of twisting, one is called hand twisting, the other is backhand twisting. The hand twisting fiber is S shaped in the axial direction of the yarn, so it is called S twist, and the backhand twist is Z trend, so it is called Z twist. Usually the single yarn is mostly Z twist, and the strands are mostly S twist.

　　 Island silk The polyester fiber is made of Sea Island silk, which is mainly used to weave suede. Its English should be:

Sea Island filament or islands-in-a-sea filament

DOBBY G.G.T is the beautiful yarn DEW DROP is the drop plastic CRENKLE is the bubble SHUTTLE is the shuttle WATTER JET is the water jet loom.

Cationic yarns are easier to dye than ordinary yarns. They can be dyed with alkyd dyes. When cationic filament is mixed with ordinary polyester, it can also be used for double dyeing with disperse dyes. The special dyes can be obtained by dyeing the dark base dyes with the disperse dyes of light coloured dyes in the same cylinder.

Open yarn belongs to mirco fiber series yarn. At present, domestic technology is not yet manufactured. For example, Haijima Sa, if a 24F is opened, a single root has 12F, and its fiber number is 24x12=288f.

Pre spinning engineering and post spinning can not show the characteristics of open yarn. In dyeing and finishing, the amount of "sea" is reduced by NaOH reduction, which means opening yarn.

　　 Printing and dyeing industry It is customary to call it a machine cylinder instead of a large ceramic cylinder. The reason is that 50 years ago dyeing was done with a large vat, and then the first machine dyed was the dyeing machine. Tie dye should be a mistake in pad dyeing instead of tie dyeing in handicraft tie dyeing and batik dyeing.

Seed cotton is cotton picked directly from cotton bolls and has cottonseed. After seed cotton is processed through cotton processing, the cotton that removes cottonseed is called lint, or cotton.

Cotton price = (seed cotton price cottonseed price * (1- lint)) / lint.

The seed cotton price, cotton price and cottonseed price are all yuan / Jin.

If the current seed cotton purchase price is 2.7 yuan / Jin, if the cottonseed is 0.7 yuan / Jin and the lint percentage is 35% (i.e. 0.35), according to the above formula, the purchase price of lint is 6.41 yuan / Jin, that is 641 yuan / Dan, 12820 yuan / ton. The above calculation does not consider the machining loss.

The color fastness of pigment printing is related to many factors. For example, the binder and crosslinking agent used, the particle size of the selected paint, the drying or baking temperature after printing, the substrate of printing, etc., are related to the printing ink. The main reason for the poor impression of printing is the selection of adhesives and crosslinking agents.

Inkjet printing is the use of four color printing principle, a total of 4--8 cartridges, to the inkjet printer principle, the use of a sprinkler head on the cloth and transfer paper printing, slower, suitable for printing less than 200 meters. The processing cost of general printing is 2--10 yuan / m.