阅读说明：本技术 一种低卷曲高模瑜伽面料锦纶弹力丝的生产方法 (Production method of low-curl high-modulus yoga fabric chinlon stretch yarn ) 是由 阮育余 于 2020-09-30 设计创作，主要内容包括：本发明提供一种低卷曲高模瑜伽面料锦纶弹力丝的生产方法,包括以下制作工艺：将锦纶预取向丝依次经过导丝器、第一罗拉、止捻器、热箱、冷却板、假捻器、第二罗拉、第一网络器、第三罗拉、油轮,然后由卷绕机进行卷绕成型,获得锦纶弹力丝。本发明的优点在于：选择高牵伸、低热箱温度、低假捻速度的制造工艺,制得低卷曲高模量的锦纶弹力丝,此锦纶弹力丝的卷曲度为15-18％,卷曲模量为13％。(The invention provides a production method of low-crimp high-modulus yoga fabric chinlon stretch yarn, which comprises the following manufacturing processes: the method comprises the following steps of sequentially passing the nylon pre-oriented yarn through a yarn guide, a first roller, a twist stopper, a hot box, a cooling plate, a false twister, a second roller, a first networker, a third roller and an oil wheel, and then winding and forming by a winding machine to obtain the nylon elastic yarn. The invention has the advantages that: selecting a manufacturing process with high drafting, low hot box temperature and low false twisting speed to prepare the nylon elastic yarn with low crimp degree and high modulus, wherein the crimp degree of the nylon elastic yarn is 15-18%, and the crimp modulus is 13%.)

1. A production method of low-curl high-modulus yoga fabric chinlon stretch yarn is characterized by comprising the following manufacturing processes:

sequentially passing the nylon pre-oriented yarn through a yarn guide, a first roller, a twist stopper, a hot box, a cooling plate, a false twister, a second roller, a first networker, a third roller and an oil wheel, and then winding and forming by a winding machine to obtain the nylon elastic yarn;

the filar is used for the strand silk to the direction transmission, first roller, second roller and second roller are used for tensile transmission's strand silk, it is used for to end the twister the strand silk entry of hot case sets up ends twists with fingers the point, hot case is used for heating the strand silk, the cooling plate is used for cooling down the strand silk, the false twister is used for increasing the twist of strand silk, the nether is used for increasing the network of strand silk, the oil ship is used for adding the oiling agent to the strand silk.

2. The production method of the nylon elastic yarn for the low-crimp high-modulus yoga fabric according to claim 1, wherein the transmission speed of the nylon pre-oriented yarn is 650-750m/min, the filament is heated to 140 ℃ by the hot box, the filament is cooled to 44-46 ℃ by the cooling plate, and the speed of the false twister is 1.50-1.65 times of the transmission speed of the nylon pre-oriented yarn.

3. The production method of the nylon stretch yarn of the low-crimp high-modulus yoga fabric according to claim 1, wherein the production process of the nylon pre-oriented yarn is as follows:

the polyamide 6 chips are heated and melted by a screw extruder to form a spinning melt, then enter a spinning box body through a melt pipeline, are sprayed out to form tows by a spinneret plate of the spinning box body under the metering action of a metering pump, then are uniformly cooled by a side blowing device to form fibers, then are sequentially subjected to cluster oiling of an oiling device, pre-networking of a second network device and stretching of a drawing guide disc, and finally are guided into a winding machine to be wound and formed, so that the polyamide pre-oriented yarn is obtained.

4. The production method of the low-curl high-modulus yoga fabric nylon stretch yarn according to claim 3, wherein the wind speed of the side blowing device is 0.4-0.5m/s, the wind temperature is 18-25 ℃, and the wind humidity is 55-75 ℃.

5. The production method of the low-curl high-modulus yoga fabric nylon stretch yarn according to claim 1, wherein the cluster oiling of the oiling device is specifically as follows: the fiber firstly passes through a first oil nozzle and then passes through a second oil nozzle, the distance H1 between the first oil nozzle and the side blowing device is 60-80cm, and the distance H2 between the second oil nozzle and the first oil nozzle is 14-16 cm.

Technical Field

The invention relates to the technical field of nylon production in the textile industry, in particular to a production method of low-crimp high-modulus yoga fabric nylon stretch yarn.

Background

Nylon is a trade name for polyamide fiber, also known as Nylon or Nylon. Since the advent of the nylon civilian yarn, great development has been made in weaving applications. The chinlon civil yarn is widely applied to weaving equipment such as tatting, weft knitting, warp knitting, yarn covering and the like, the fabric is widely favored by the market due to the characteristics of light weight, bright dyeing, high breaking strength, good wear resistance and the like, is an excellent garment fabric, and particularly has wide prospect in the application field of the fabric of sports clothes. In the year, due to the influence of new crown pneumonia epidemic situation, global demand on indoor sports clothes is increased greatly, and especially the demand on fabrics of yoga clothes and trousers corresponding to yoga sports is higher.

The stretch yarn for the yoga fabric comprises nylon stretch yarn and polyester stretch yarn. The elasticity of the traditional chinlon POY, namely the chinlon pre-oriented yarn, is high after false twisting by an elasticizer, but the flatness of the woven cloth surface is poor due to the high flexibility and torque of the high-elasticity fiber in the weaving process. If the terylene low stretch yarn is selected, the dyeing property, the wear resistance and the like of the product are not the same as those of chinlon.

Disclosure of Invention

The invention aims to solve the technical problem of providing a production method of low-curl high-modulus yoga fabric chinlon stretch yarn.

The invention is realized by the following steps: a production method of low-curl high-modulus yoga fabric chinlon stretch yarn comprises the following manufacturing processes:

sequentially passing the nylon pre-oriented yarn through a yarn guide, a first roller, a twist stopper, a hot box, a cooling plate, a false twister, a second roller, a first networker, a third roller and an oil wheel, and then winding and forming by a winding machine to obtain the nylon elastic yarn;

the filar is used for the strand silk to the direction transmission, first roller, second roller and second roller are used for tensile transmission's strand silk, it is used for to end the twister the strand silk entry of hot case sets up ends twists with fingers the point, hot case is used for heating the strand silk, the cooling plate is used for cooling down the strand silk, the false twister is used for increasing the twist of strand silk, the nether is used for increasing the network of strand silk, the oil ship is used for adding the oiling agent to the strand silk.

Further, the transmission speed of the nylon pre-oriented yarn is 650-750m/min, the filament is heated to 130-140 ℃ by the hot box, the filament is cooled to 44-46 ℃ by the cooling plate, and the speed of the false twister is 1.50-1.65 times of the transmission speed of the nylon pre-oriented yarn.

Further, the manufacturing process of the nylon pre-oriented yarn comprises the following steps:

the polyamide 6 chips are heated and melted by a screw extruder to form a spinning melt, then enter a spinning box body through a melt pipeline, are sprayed out to form tows by a spinneret plate of the spinning box body under the metering action of a metering pump, then are uniformly cooled by a side blowing device to form fibers, then are sequentially subjected to cluster oiling of an oiling device, pre-networking of a second network device and stretching of a drawing guide disc, and finally are guided into a winding machine to be wound and formed, so that the polyamide pre-oriented yarn is obtained.

Furthermore, the wind speed of the side blowing device is 0.4-0.5m/s, the wind temperature is 18-25 ℃, and the rheumatism degree is 55-75 ℃.

Further, the cluster oiling of the oiling device is specifically as follows: the fiber firstly passes through a first oil nozzle and then passes through a second oil nozzle, the distance H1 between the first oil nozzle and the side blowing device is 60-80cm, and the distance H2 between the second oil nozzle and the first oil nozzle is 14-16 cm.

The invention has the advantages that: 1. selecting a manufacturing process with high drafting, low hot box temperature and low false twisting speed to prepare the nylon elastic yarn with low crimp degree and high modulus, wherein the crimp degree of the nylon elastic yarn is 15-18%, and the crimp modulus is 13%. 2. After the process of cluster oiling is arranged in the process of uniform cooling of cross air blow, the polyamide pre-oriented yarn with good performance is obtained.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a flow chart of a production method of the low-curl high-modulus yoga fabric chinlon stretch yarn.

FIG. 2 is a flow chart of the production of the nylon pre-oriented yarn of the present invention.

Fig. 3 is a schematic view of the position of the side-blowing device and cluster oiling in fig. 2.

Fig. 4 is a schematic view of the second net, the draft guide disc and the high speed winding machine in fig. 2.

Detailed Description

The embodiment of the invention provides a production method of the nylon elastic yarn of the low-curl high-modulus yoga fabric, solves the technical problem that the nylon elastic yarn of the yoga fabric in the prior art is too high in curl, and achieves the technical effect of obtaining low curl and high modulus.

In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea: in the process for preparing the nylon stretch yarn of the low-crimp high-modulus yoga fabric, the selection and control of the cooling condition of the POY of the nylon pre-oriented yarn are the most important influencing factors for the subsequent stretch yarn processing, and the POY has great influence on the orientation degree, the diameter unevenness, the crystallinity, the tensile property, the mechanical property and the like of the fiber. After the process of cluster oiling is arranged in the process of uniform cooling of cross air blow, the polyamide pre-oriented yarn with good performance is obtained; selecting a manufacturing process with high drafting, low hot box temperature and low false twisting speed to prepare the low-crimp high-modulus nylon elastic yarn.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.

Referring to fig. 1 to 3, the preferred embodiment of the method for producing the low-curl high-modulus yoga fabric chinlon stretch yarn of the present invention.

The invention comprises the following manufacturing process:

sequentially passing the polyamide pre-oriented yarn (POY) through a yarn guide, a first roller, a twist stopper, a hot box, a cooling plate, a false twister, a second roller, a first networker, a third roller and an oil wheel, and then winding and forming by a winding machine to obtain the polyamide elastic yarn;

the yarn guide is used for guiding the transmitted filament, the first roller, the second roller and the second roller are used for stretching the transmitted filament, and the twist stopper is used for arranging a twist stopping point at the inlet of the filament of the hot box to play a role in preventing the twist of the filament from being transmitted; the hot box is used for heating the strand silk, and the heating temperature is set according to the technological requirement, otherwise the crimping irregularity, the dyeing irregularity and the heat setting effect of the strand silk can be influenced, and the stiff silk, the dyeing degradation and the like are easy to occur. The cooling plate is used for cooling the filament, fixing the crimp structure of the filament after false twisting, and if the cooling is not good, the crimp structure formed by the filament in the false twisting process is not uniform, so that the dyeing uniformity is influenced, the dyeing is reduced, and the like. The false twister is used for increasing the twist of the strand silk, and the first netlike device is used for increasing the network of the strand silk, so that the oil content of the strand silk is more uniform during oiling, and the cohesion of the silk is increased; the tanker is used to add oiler to the tow.

The transmission speed of the nylon pre-oriented yarn is 650-750 m/min; the heating temperature of the heat box is 155-165 ℃, the heat box heats the filaments to 130-140 ℃, and the filaments enter the cooling plate; after the filaments are cooled to 44-46 ℃ by the cooling plate, the filaments enter a false twister; the cooling plate is made of special steel and is plated with porcelain. The false twisting speed is 1.50-1.65 times of the transmission speed of the polyamide pre-oriented yarn. The crimp degree of the nylon stretch yarn is 15-18% (35-70% under the normal nylon state), and the crimp modulus is 13% (below half of the crimp degree under the normal nylon state).

The manufacturing process of the nylon pre-oriented yarn comprises the following steps:

placing the polyamide 6 slices in a storage bin, feeding the polyamide 6 slices into a screw extruder from the storage bin, heating and melting the polyamide 6 slices into a spinning melt through the screw extruder, wherein the spinning melt is extruded from the head of a screw under the preset pressure generated after the polyamide 6 slices are heated, melted and metered through a feeding section, a compression section and a metering section; then the melt enters a spinning box body through a melt pipeline, the spinning melt is filtered to remove impurities and mixed uniformly under the metering action of a metering pump, then the spinning melt is sprayed out of a spinneret plate of the spinning box body to form tows under certain pressure, and then the tows are uniformly cooled by a side blowing device to form fibers, wherein the wind speed of the side blowing device is 0.4-0.5m/s, the wind temperature is 18-25 ℃, and the rheumatism degree is 55-75 ℃. The cluster oiling of the oiling device is sequentially carried out, and the cluster oiling specifically comprises: the fiber passes through the first oil nozzle to be cooled, bunched, lubricated and antistatic, and then passes through the second oil nozzle to increase oiling uniformity.

In order to obtain the nylon pre-oriented yarn with good performance, a side-blowing uniform cooling device is additionally arranged above a side-blowing window, so that each strand is cooled more uniformly. If move down to the selection of the position of gathering a bundle oiling, as the solidification point of nascent fiber then moves down, the silk bundle shake aggravates, produces unstable air current easily, has aggravated the shake of silk bundle for the spinning fuse-element is unstable after by the spinneret blowout, and spinning formation receives certain influence, and the dwell time of nascent fiber near the crystallization zone is longer simultaneously, thereby leads to nascent fiber excessive crystallization, can lead to broken filament and broken end in the production, and the postprocessing difficulty.

Therefore, referring to fig. 3, the cluster oiling machine frame is arranged below the side blowing device. The side blowing device 1 is cooled evenly, and the frame 2 is fixedly arranged at the lower part of the side blowing device 1; a first supporting cross rod 21 and a second supporting cross rod 22 which are arranged up and down are fixedly arranged on the rack 2, a plurality of first oil nozzles 23 are fixedly arranged along the length direction of the first supporting cross rod 21, and a plurality of second oil nozzles 24 are fixedly arranged along the length direction of the second supporting cross rod; the distance H1 between the side blowing device 1 and the first oil nozzle 23 is 60-80cm, and the distance H2 between the first oil nozzle 23 and the second oil nozzle 24 is 14-16 cm; the thin flow sprayed from the spinning beam is uniformly cooled by the side blowing device 1 to form the fiber 3, and the fiber 3 passes through the first oil nozzle 23 and the second oil nozzle 24.

Referring to fig. 4, the oil content of the fiber is more uniform by entering a spinning channel and then sequentially passing through a pre-network of a second network device 4. Winding the pre-networked yarn 5 on a drafting guide disc, wherein the drafting guide disc is divided into a drafting guide disc GR1 and a drafting guide disc GR 2; and drawing by a drawing guide disc, and finally guiding into a high-speed winding machine 6 for winding and forming to obtain the nylon pre-oriented yarn.

Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.