CN217324466U - High-elastic smooth polyester yarn - Google Patents

Abstract

The utility model provides a high-elastic level and smooth polyester yarn belongs to weaving yarn technical field, include: core and cover yarns; the core yarn comprises six spandex filaments and six polyester filaments, and the six polyester filaments are spirally wound outside the spandex filaments; the covering yarn is covered outside the core yarn and comprises wool-like polyester fiber yarn. The utility model discloses not only have the silky feel like wool, still have the elasticity and the intensity of dacron, be applicable to knitting yarn surface fabric.

Description

High-elastic smooth polyester yarn

Technical Field

The utility model relates to a weaving yarn technical field, concretely relates to high-elastic level and smooth polyester yarn.

Background

The terylene yarn is a yarn spun by taking terylene as a raw material, the terylene is a fiber prepared by spinning a polymer, and the terylene yarn is a fiber produced by taking polyethylene terephthalate as a raw material, and the terylene yarn is abbreviated as PET fiber according to the English name of the raw material. Commonly known as terylene in China. By "yarn", it is meant the collective designation of "yarn" and "thread", as it is commonly referred to, as defined in the clothing materials science, as follows: "yarn" is an elongated object formed by arranging a plurality of short fibers or filaments in an approximately parallel state and twisting them by rotation in the axial direction to have a certain strength and linear density; and "thread" is a strand formed by twisting two or more single yarns. The yarn is a multi-strand thread made up of cotton, wool, hemp, chemical fibre, etc. through elongating, twisting and twisting. The polyester yarn has excellent strength and stability, and is widely applied to various garment materials. Wherein, the polyester yarn that the sweater adopted needs good elasticity and the silky feeling, but the elasticity of current polyester yarn can't accomplish the balance with feeling, leads to its suitability relatively poor, can't satisfy market needs, for this reason, the utility model provides a novel smooth polyester yarn of high-elastic.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-elastic level and smooth dacron yarn.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

a high stretch smooth polyester yarn comprising: core and wrap yarns;

the core yarn comprises six spandex filaments and six polyester filaments, and the six polyester filaments are spirally wound outside the spandex filaments;

the covering yarn is covered outside the core yarn and comprises wool-like polyester fiber yarn.

On the basis of the scheme and as a preferable scheme of the scheme, at least two of the six polyester filaments are antibacterial polyester filaments.

On the basis of the scheme and as a preferable scheme of the scheme, at least two of the six polyester filaments are high-strength polyester filaments.

On the basis of the scheme and as a preferable scheme of the scheme, at least two of the six polyester filaments are high-elastic polyester filaments.

In addition to and as a preferable mode of the above mode, a vinylon fiber yarn is provided between the core yarn and the covering yarn.

On the basis of the scheme and as a preferable scheme of the scheme, a plurality of flax fibers are wound on the outer surface of the polyester filament yarn.

In addition to the above, and as a preferable mode of the above, a three-proofing layer is attached to the outside of the covering yarn.

On the basis of the scheme and as a preferable scheme of the scheme, the core yarn further comprises antistatic filaments, and the antistatic filaments and the polyester filaments are arranged in an intersecting manner and spirally wound outside the spandex filaments.

The utility model has the advantages that: the utility model discloses an imitative wool polyester fiber yarn cladding that has good feeling has the high strength high elasticity by the core yarn of constituteing such as spandex filament and polyester filament, not only has soft level and smooth feeling, still has excellent intensity, elasticity and stability, can satisfy the needs of various knitwear. The wrapping yarn has soft and smooth hand feeling, and meanwhile, the strength of the yarn can be improved, so that the yarn has wider applicability. The spandex filament and the polyester filament of the core yarn both have excellent elasticity, and the core yarn enables the yarn to have excellent toughness, so that the woven fabric is more stable and durable.

Drawings

Fig. 1 is a schematic view of a yarn structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of a second yarn structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of the structure of three yarns in the embodiment of the present invention.

In the figure: 1. spandex filament; 2. polyester filament yarn; 21. antibacterial polyester filament yarn; 22. high-strength polyester filament yarn; 23. high-elastic polyester filament yarn; 3. imitating wool polyester fiber yarns; 4. vinylon fiber yarn; 5. flax fibers; 6. a three-proofing layer; 7. an antistatic filament.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

as shown in fig. 1, a high elastic smooth polyester yarn includes: core and cover yarns;

the core yarn comprises spandex filament yarns 1 and polyester filament yarns 2, the number of the polyester filament yarns 2 is six, and the core yarn is spirally wound outside the spandex filament yarns 1. Two of the six polyester filaments 2 are antibacterial polyester filaments 21, two are high-strength polyester filaments 22, and two are high-elastic polyester filaments 23. The antibacterial polyester filament 21 has antibacterial property, can improve the antibacterial property of the yarn and meet the antibacterial requirement; the high-strength polyester filament 22 has higher strength compared with the common polyester filament, so that the strength of the yarn is higher to meet the requirement of higher strength; the elasticity and toughness of the high-elastic polyester filament yarn 23 are higher than those of common polyester filament yarns, so that the elasticity and toughness of the yarn can be improved, and the yarn is more flexible. Preferably, the antibacterial polyester filament yarn 21, the high-strength polyester filament yarn 22 and the high-elasticity polyester filament yarn 23 are spirally wound outside the spandex filament yarn 1 in an interval arrangement.

The preparation method of the antibacterial polyester filament 21 comprises the following steps: a. putting prepared raw materials of purified terephthalic acid, ethylene glycol, micron-sized heat-storage anti-mite ceramic powder and silver-loaded nano titanium dioxide composite antibacterial powder into a slurry kettle according to a ratio, adding a potassium fluotitanate, sodium aluminate or manganese acetate catalyst, fully mixing and pulping to obtain slurry, introducing the slurry into a reaction kettle for esterification reaction, wherein the temperature of the esterification reaction is controlled to be 245-255 ℃; b. introducing the esterified mixture into a polycondensation kettle for polycondensation reaction at the temperature of 255-275 ℃ and the pressure of 50-80Pa, preparing slurry through pre-shrinking, intermediate shrinking and final shrinking, extruding by a screw machine, cooling and granulating to obtain polyester chips; c. the prepared polyester chips are dried and then spun on an LHV431 type spinning machine, the drafting spinning is carried out on an LHV903 combined drafting machine, and the non-dissoluble inorganic anti-mite antibacterial polyester staple fiber is obtained after drying, spinning, winding, forming, bundling, drafting, heat setting, curling and cutting, wherein the supply amount of a spinning metering pump is controlled to be 700-305 ℃ and the spinning speed is controlled to be 900-1200m/min, and the drafting multiple is 2.78-3.18 times. The micron-sized heat-storage anti-mite ceramic powder is prepared from the following raw materials in parts by mass: 2-6 parts of taiji stone, 5-12 parts of boric acid, 8-30 parts of clay and 3-8 parts of silicic acid. The silver-loaded nano titanium dioxide composite antibacterial powder is prepared from the following raw materials in parts by mass: 1-1.5 parts of silver nitrate and sodium chloride and 3-5 parts of metatitanic acid, wherein the mass ratio of the silver nitrate to the sodium chloride is 3.2: 1.

The preparation method of the high-strength polyester filament yarn 22 comprises the following steps: firstly, putting organic dibasic acid and dihydric alcohol into a high-temperature electric furnace according to the proportion that the content of the organic dibasic acid is 70-75 percent and the content of the dihydric alcohol is 25-30 percent for polycondensation reaction, then shredding polyamide fibers and protein fibers by a shredder to obtain a mixture, adding the mixture into the high-temperature electric furnace after the polycondensation reaction is completed for high-temperature fusion, filtering by a spinning box and spraying by a spinneret plate to form tows, and finally cooling and forming to obtain a finished product of the high-strength polyester fibers.

The high-elasticity polyester filament 23 is formed by taking superfine modified polypropylene fiber as a core wire and coating a modified polyester fiber layer outside the core wire, wherein the superfine modified polypropylene fiber core wire contains 5 to 10 parts by weight of Vistamaxx propenyl elastomer in every 100 parts by weight of polypropylene melt; the core wire diameter of the superfine modified polypropylene fiber is 0.1-1.0 micron, the modified polyester is prepared by adding 10-20 parts of polyurethane melt and 2-5 parts of silicon dioxide nano powder material into 100 parts of polyester melt by weight, and the diameter of the coated composite fiber is 1-4 microns.

The wrapping yarn is wrapped outside the core yarn and comprises wool-like polyester fiber yarn 3. The wool-like polyester fiber yarn 3 has soft and smooth hand feeling which is not possessed by common polyester fiber yarns, the hand feeling of the yarn is effectively improved, and the knitted sweater has higher comfort level. Preferably, the wool-like polyester fiber yarn 3 is spun by wool-like polyester staple fibers, and the preparation steps of the wool-like polyester staple fibers comprise: a. esterification reaction: adding purified terephthalic acid and ethylene glycol into a slurry preparation tank according to the mol ratio of 1.1-1.5 to prepare slurry, controlling the density by using a mass flow meter to ensure that the mol ratio of the purified terephthalic acid to the ethylene glycol is stable, supplying the slurry to an esterification kettle by using a slurry supply pump to perform esterification reaction, wherein the esterification pressure is controlled at 70KPa, the temperature in the esterification is stably controlled at 262 +/-2 ℃, the temperature at the top of a stable separation tower is 114 +/-2 ℃, and the esterification rate is 91-92%; b. pre-shrinking reaction: feeding the esterification reaction product into a pre-shrinking reaction kettle, controlling an oligomer pipeline at 270 +/-5 ℃, and simultaneously adding an additive on the oligomer pipeline by using an injector, wherein: adding ethylene glycol antimony solution with the concentration of 4% as a catalyst to ensure that the content of antimony in the finished product is 240ppm (mass ratio); adding 20% titanium dioxide solution as delustering agent to make the titanium content in the finished product 0.2% (mass ratio), and adding tripotassium phosphate as stabilizer to make the content of tripotassium phosphate in the finished product 15ppm (mass ratio); continuously feeding materials into the pre-shrinking reaction kettle, controlling the liquid level of the pre-shrinking reaction kettle to be at a specified process value, controlling the vacuum pressure of the pre-shrinking reaction to be 3000-3500Pa, and controlling the temperature of the pre-shrinking tower and the temperature of the bottom of the pre-shrinking tower to be 276 ℃; c. And (3) polycondensation reaction: feeding the materials subjected to the pre-shrinking reaction into a polycondensation reaction kettle through a loop sealing pipeline to perform polycondensation reaction, controlling the lowest liquid level of the polycondensation reaction kettle to be 250mm, controlling the polycondensation vacuum pressure to be 300-450Pa, stirring to run at a low speed of 1.6-1.9 r/min, and controlling the polycondensation discharge temperature to be 283 ℃; d. pelletizing: the polycondensation product is processed by an underwater granulator, a dryer and a vibrating screen to obtain polyester chips; e. spinning: drying the obtained polyester chips to the water content of below 30ppm, melting, extruding and sending the polyester chips into a spinning box body through a screw extruder, metering the polyester chips by a metering pump, then entering a spinning assembly, ejecting a melt from a spinneret plate, cooling and forming the polyester chips through a spinning ring air blow, then winding the polyester chips to obtain a nascent fiber, stretching, curling and relaxing heat setting the nascent fiber to obtain the wool-like polyester staple fiber, wherein the temperature of the melt after melting by the screw extruder is 265-plus 272 ℃, the viscosity of the melt is 0.46-0.50dl/g, the temperature of the spinning ring air blow is 16-20 ℃, the air speed is 0.6-1.0m/s, the temperature of a spinning chamber is 22-26 ℃, the stretching ratio of a spinneret is 200-plus 250 times, the fineness of the nascent fiber obtained by spinning is 4.66-5.16dtex, the stretching temperature is 70 +/-2 ℃, the stretching multiple is 2.8-3.1 times, the relaxing heat setting temperature is 120-plus 135 ℃, the length of a spinneret plate hole is 0.36mm, the aperture of the spinneret plate is 0.30mm, the winding speed is 1250m/min, and the internal pressure of a spinneret plate melt is 22-26 MPa.

Example two:

as shown in fig. 2, the present embodiment is different from the first embodiment in that: vinylon fiber yarns 4 are arranged between the core yarns and the covering yarns; and a plurality of flax fibers 5 are wound on the outer surface of the polyester filament yarn 2. The vinylon fiber yarn 4 can solve the problem of yarn moisture absorption caused by poor moisture absorption of polyester fibers. The flax fiber has excellent functions of moisture absorption, static electricity prevention, bacteriostasis and the like, and can improve the toughness of the yarn, so that the yarn has more abundant functions, the strength and the toughness of the yarn are better, and the applicability is wider.

Example three:

as shown in fig. 3, the present embodiment is different from the first embodiment in that: a three-proofing layer 6 is attached to the exterior of the wrapping yarn; the core yarn further comprises an antistatic filament 7, and the antistatic filament 7 and the polyester filament 2 are crossed, arranged and spirally wound outside the spandex filament 1. The three-proofing layer 6 is made of waterproof, oil-proof and antifouling auxiliary agents impregnated in the yarns, so that the knitted sweater is more resistant to dirt. Antistatic filament 7 is the electrically conductive filament of elasticity preferred, not only can reduce the harm of yarn static, can also promote the elasticity of yarn, and the surface fabric elasticity of making is better, and the texture is better.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (8)

1. A high-elastic smooth polyester yarn is characterized by comprising: core and cover yarns;

the core yarn comprises six spandex filaments (1) and six polyester filaments (2), and is spirally wound outside the spandex filaments (1);

the covering yarn is covered outside the core yarn and comprises wool-like polyester fiber yarn (3).

2. The high-elastic smooth polyester yarn according to claim 1, wherein at least two of said six polyester filaments (2) are antibacterial polyester filaments (21).

3. The high-elastic smooth polyester yarn according to claim 1, wherein at least two of the six polyester filaments (2) are high-strength polyester filaments (22).

4. The high-elasticity smooth polyester yarn according to claim 1, wherein at least two of the six polyester filaments (2) are high-elasticity polyester filaments (23).

5. The high-elastic smooth polyester yarn according to claim 1, wherein a vinylon fiber yarn (4) is disposed between said core yarn and said covering yarn.

6. The high-elasticity smooth polyester yarn according to claim 1, wherein a plurality of flax fibers (5) are wound on the outer surface of the polyester filament yarn (2).

7. The high-elastic smooth polyester yarn according to claim 1, wherein a three-proofing layer (6) is attached to the exterior of the covering yarn.

8. The high-elasticity smooth polyester yarn according to claim 1, wherein the core yarn further comprises an antistatic filament (7), and the antistatic filament (7) and the polyester filament (2) are crossed, arranged and spirally wound outside the spandex filament (1).

Images