Weaving process weaving process which is good

1, what is the weaving process?2, the textile process 3, the textile process is which?4, chemical fiber fabric weaving process mainly? What is the weaving process?

Silk is drawn from the cocoon, becoming the raw material for weaving silk. A cocoon can be drawn about 1000 meters long cocoon silk, a number of cocoon silk combined to become raw silk.

The raw silk is processed into warp and weft threads, and according to certain organizational rules interwoven to form silk fabrics, is the weaving process.

China was the first country in the world to invent silk weaving technology, and as a technological invention, effective measures were taken to keep it secret. As a result, for a long period of history, China was the only country in the world capable of manufacturing silk fabrics.

Textile Process

The so-called spinning is an act of taking animal or vegetable fibers and twisting them to make them hold together into a continuous and infinitely extendable yarn, so as to be suitable for weaving.

The spinning process consists of eight steps: debinding, loosening, opening, carding, combing, drafting, twisting and winding.

1, in addition to impurity

Spinning is the study of textile staple fibers processed into yarn, yarn is generally made of many lengths of staple fibers through the method of twisting, as well as by the very long continuous monofilament twisted together.

In the spinning process first need to remove faults, that is, the raw material for the initial processing, also known as spinning raw material preparation. Different types of raw materials, impurities of different types and properties, processing methods and processes are different.

The preliminary processing of raw materials are mainly physical methods (such as cotton ginning), chemical methods (such as hemp degumming, silk refining) and a combination of physical and chemical methods (such as wool washing and charring of grass).

2, loosening

The disordered, transversely closely linked fibers processed into longitudinal order, but also has certain requirements of the smooth yarn, the need to block fibers into a single fiber state, lifting the fibers of the existence of raw materials in the transverse connection, the establishment of a solid longitudinal connection of the first and last connection. The former is known as the loosening of the fiber, the latter is known as the collection of fibers.

Fiber relaxation is the complete lifting of fibers and fibers between the existence of transverse links. But must minimize fiber damage. The collection of fibers is to make the loosening of fibers to re-establish an orderly arrangement of the longitudinal connection, this connection is continuous, and should make the collection of fibers within the distribution is uniform, and at the same time have a certain linear density and strength.

Fiber aggregates, also need to add a certain twist. The collection process is not a one-time completion, after carding, drafting and twisting and other processing can be completed.

3, opening

Opening is to tear the large fibers into small pieces, small fiber bundles. Broadly speaking, hemp degumming is also a kind of opening. With the opening action, fiber and impurities between the contact force weakened, so that the impurities are removed, while the fibers are mixed with each other.

The opening action and the removal of impurities is not a one-time completion, but through the tearing, striking, and dividing the role of the rational configuration of the gradual realization.

4, carding

Combing is a large number of dense carding machine by the carding needle to the fiber small pieces, small bundles of further loosening into a single state, thus further perfecting the fiber loosening. After carding the lateral connection between the fibers is basically lifted, the removal of impurities and mixing effect more fully.

But a large number of fibers are curved. And there are curved hooks, there is still a certain degree of transverse connection between each fiber.

5, combing

The combing role of combing machine is the use of combing to the two ends of the fiber are held under the state of more detailed combing. Combing machine processing can exclude a certain length of short fibers and small defects, promote the fiber more parallel, straight. Chemical fiber because of its length neat, less impurity, straight parallel state is good, generally not through the combing machine processing.

6, drawing

The carding of the strips after the draw length, gradually reach the predetermined thickness, this process is called drawing. For the fibers to firmly establish a regular relationship between the first and last connection laid the foundation. However, the drafting will bring the short section of the yarn uneven, therefore, need to configure a reasonable drafting device and process parameters.

7, twisting

Twisting is the whisker around its own axis to be twisted, so that parallel to the whisker axial fibers in the shape of a helix, thus generating radial pressure to make the longitudinal connection between the fibers fixed.

8, winding

Semi-finished products or finished products into a certain form of winding, in order to facilitate storage, transportation and the next process of processing, the process is called winding. The winding process should be carried out continuously on the basis of not affecting the output and quality of the product, and efforts should be made to realize the continuous production between the various processes to minimize the quality problems caused by the winding process.

In short, the spinning process generally includes the preparation of raw materials, opening, carding, de-mixing, mixing, drafting, merging, twisting and winding, and some of these roles are realized through many iterations.

Expanded Information:

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History of the development of the spinning process

1. Twisting with both hands

Most natural fibers, such as wool, cotton, and so on, are only a few _ long, so they must be twisted into long yarns before they can be woven, and the first to use this method was probably the first person to do so, who lived around 9,000 B.C.E. in Zagros mountains of Mesopotamia, for they were the first to tame the sheep.

At this time, primitive wool yarns could probably be made by simply twisting with both hands. Later, flax and cotton fibers were also used to make yarn, adding to the variety of woven fabrics.

2. Hand Spinning Rods and Spindles

From about 7,000 B.C.E. onward, humans began spinning yarn with burning rods (spinning rods) and spindles. The spinner held a twisted rod with fibers on it in one hand, and with the other hand drew the fibers into a loose yarn, which was wound around another rod or a groove at the top of the spindle_.

The spindle is held in place by a flat stone or spindle disk weighted underneath. The spinner spins the spindle like a gyroscope, and the spindle tightens the loose yarn into yarn, which is then wound around the spindle. This method has been used for thousands of years, and some of the yarns produced are of quite good quality.

3, spinning wheel

The emergence of the spinning wheel on the spinning technology played a significant impact. It is generally believed that the spinning wheel originated in China, is the evolution of reeling machine. The origin of the European spinning wheel is not clear, they appeared later, the earliest record of the spinning wheel is about the age of the fourteenth century.

In the fifteenth century, in Saxony (now part of East Germany) appeared a modified spinning wheel, the fuel rod mounted on the machine, the wheel is operated by a foot pedal, this machine can be spun and wound at the same time, the spinners so that the hands can be freed up, reducing labor.

References:

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Baidu Encyclopedia - Spinning

What are the textile processes?

The textile process includes two parts: the spinning process and the weaving process.

The spinning process mainly includes: clearing, carding, combing, merging, roving, spinning.

Weaving process mainly includes: winding, warping, sizing, warping, weaving, finishing.

I. Spinning process and the main equipment and tasks:

1, clearing process: to remove most of the impurities in the raw cotton, blemishes and short fibers that are not suitable for spinning.

2, carding machine: the clearing process down the machine of cotton rolls through the sting roller, silliman cover, doffing and other processes.

Combing, decontamination, mixed into sliver into the cylinder.

3, combing process:

Combing machine:

1) removal: remove the fiber in the cotton knot, impurities and fiber defects.

2) carding: further separation of fibers, excluding short fibers below a certain length.

3) Drawing: the sliver to a certain thickness, and improve the parallel straightness of the fiber.

4, and the sliver process:

And the sliver machine:

1) merge: with 6~8 sliver for merging, improve the sliver length segments are not uniform.

2) Drawing: the sliver lengthened and drawn thin to the specified weight, and further improve the degree of fiber straightening and parallelism.

3) mixing: the use of merging and stretching, according to the process of sliver mixing in the machine.

4) Sliver formation: the looped sliver is made into well-formed cooked sliver, which is regularly coiled in the sliver cylinder.

5, roving process:

Roughing machine: the synthesized ripe strips are drawn and twisted, so that the yarn has a certain strength for the roving winding, and help the yarn in the spinner to be rewound.

6, spinning process:

Spinning machine: the roving is drawn to the required fineness, and twisted to form a yarn with a certain twist and strength and wound on the tube.

Second, the weaving process of the main equipment and tasks:

1, winding process:

Winding machine: the twisting machine down the tube yarn rewinding into a certain shape, large capacity of the tube, while eliminating impurities and blemishes on the yarn, so as to improve the productivity of the post-process.

2, warping process:

Warping machine: according to the requirements of process design, a certain number of warp yarns, according to the specified length, width, and parallel winding on the warp beam under a certain tension.

3, sizing process:

Sizing machine: in order to make the single fibers of the silk bonded to each other, increase the breaking strength of the silk, in order to facilitate the smooth weaving on the machine. Put the whole warp beam on the sizing machine, after sucking pulp, through the oven drying.

4, through the warp process:

Warp threading machine: each warp yarn on the warp beam according to the process design requirements, in accordance with a certain order into the heald and reed, and inserted in the warp yarn on the warp stopper, has been determined to weave the link all the way through.

5, weaving process:

Shuttle loom: the warp beam in the shuttle loom through the shuttle guide weft yarns, according to the requirements of the process of interweaving into a blank fabric, and winding into a roll.

What are the main chemical fiber fabric weaving process?

Chemical fiber fabric weaving process is mainly as follows:

1. Warping: this process is generally according to the product characteristics, can be divided into two kinds of warping and warp beam warping.

Split-axis warping is a whole shaft is divided into several to the whole, through the pulp and then combined into a whole shaft. For example, the total warp of a whole shaft is 10,000. There are only 1000 tubes in the upper row, so it should be divided into 10 sub-axes. The number of warp threads in each sub-axis is 1000. The width of each spool should be the same. If the width of the product is 170cm, then the width of the spool is also 170cm.

Slitting warping: This is the more widely used iron warping method. As mentioned above, the total warp of a whole shaft is 10,000, and the tube of the upper row is 1,000, then the whole shaft should be divided into 10 strips to complete. The width of each warp is 17cm, and the total width of the door is 170cm

The length of the whole warp is usually calculated according to the number of revolutions of the large garden frame to calculate the length of the warp threads. This is not a very standard way of calculating the length, because as the number of revolutions increases, the outside diameter of the large garden frame is getting bigger, and the circumference is also increasing. The circumference of the large garden frame is generally 2.5 meters, 4 meters, 5 meters. To 4 meters is more. Such as the first meridian of the number of revolutions is 100 revolutions. Then the back of the same is also 100 turns, can not have more or less, more called long hanging, less called short hanging. Long can only be cut off, it is a waste of raw materials, short should be connected to the machine when weaving to this position. Because there are many knots, it is difficult to weave. Even if you weave through, the cloth is defective.

The ****same point of the two warping methods is that the warp yarn is firstly warped to the big garden frame, and then dished from the big garden frame to the empty disk sheet.

2. Sizing: the whole warp beam is pulled to put on the sizing machine, so that the warp surface is sucked through the sizing tank, and dried in the oven. Then disk to the empty disk sheet. The purpose of sizing is to allow the silk of the monofilaments bonded to each other, increasing the breaking strength of the silk, in order to facilitate the smooth weaving on the machine.

With the development of textile machinery, there is now a joint machine of the whole pulp, that is, in the sub-axis warping, no longer through the turnover in the garden frame and discs, from the cylinder frame out of the formation of the silk warp surface directly into the pulp tank and oven. Directly disk into the empty disk. This simplifies the process at the same time, improve efficiency, but also improve product quality. But the investment is larger.

3. And the shaft: on the pulp on the sub-axis according to the requirements of the merger. So that the length between the shaft and the shaft will be able to warp and sizing tension and other factors, and change, then only by the shortest to do, the long can only be cut off.

4. Split stranding: In order to facilitate the weaving of the smooth, split stranding machine to split the warp into upper and lower two layers, divided into strands with a rope threaded into the mouth.

5. Threading the reed: a complete warp beam is pulled to the threading workshop, with professional staff, pull out the warp surface, according to the stranding machine to divide the strand, the warp threads are divided and threaded into the heald frame of the product process requirements. This process is called threading. After the heald is threaded, a certain number of warp threads are fished into the gap between the reeds with a reed cutter. This process is called fishing reed.

6. Weaving on the machine: this process is divided into fixed reed, hanging the warp, planting grain nails, change the weft density. This will be able to start the test run.