CN216585403U

CN216585403U - Anti-pilling wear-resistant flame-retardant acrylic yarn

Info

Publication number: CN216585403U
Application number: CN202123154821.5U
Authority: CN
Inventors: 蒋利峰; 董杰; 李莉
Original assignee: Zhejiang Fuyou Technology Co ltd
Current assignee: Zhejiang Fuyou Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-24
Anticipated expiration: 2031-12-15

Abstract

The utility model provides an anti-pilling wear-resistant flame-retardant acrylic yarn, which belongs to the technical field of textile yarns and comprises the following components: anti-pilling acrylic filaments, aramid filaments and chinlon filaments; the nylon filament is spirally wound outside the anti-pilling acrylic filament to form a composite yarn; the number of the composite yarns is three, the composite yarns are spirally wound outside the aramid filament yarn in the same direction, and the three composite yarns are uniformly distributed along the axial direction of the aramid filament yarn. The yarn provided by the utility model has the advantages of high structural strength, good pilling resistance, flame retardance, wear resistance and the like.

Description

Anti-pilling wear-resistant flame-retardant acrylic yarn

Technical Field

The utility model relates to the technical field of textile yarns, in particular to anti-pilling wear-resistant flame-retardant acrylic yarn.

Background

Acrylic fiber, a scientific name of polyacrylonitrile fiber, is a fiber obtained by copolymerizing acrylonitrile as a main monomer (the content is more than 85%) and a small amount of other monomers and spinning. It is mainly characterized by that its appearance, hand feeling, elasticity and heat-insulating property are similar to those of wool, so that it is called "synthetic wool". The acrylic fiber has wide application, rich raw materials and fast development speed, is one of three synthetic fibers at present, and has the output second to that of terylene and nylon. The acrylic fabric is bright in dyeing, the light resistance is the first of various fiber fabrics, and the strength is only reduced by 20 percent after the acrylic fabric is exposed in the open air for one year. The elasticity of the acrylic fiber is better, is second only to that of the terylene and is about two times higher than that of the chinlon. The acrylic fiber has good heat resistance, the softening temperature is 190-230 ℃, the acrylic fiber is second to the polyester fiber in the synthetic fiber, and the acrylic fiber is resistant to acid, oxidant and organic solvent. Acrylic fiber is a lighter fabric in synthetic fiber fabric, and is second to polypropylene fiber, so that the acrylic fiber is a good light garment material, such as mountaineering wear, winter warm-keeping garment and the like. The existing acrylic yarn has the problems of easy pilling, no wear resistance, poor flame retardance, low strength and the like, can not meet the requirements of certain specific environments, and needs to relate to a high-strength anti-pilling wear-resistant flame-retardant acrylic yarn.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide anti-pilling wear-resistant flame-retardant acrylic yarn.

In order to solve the technical problem, the utility model aims to realize that:

an anti-pilling, abrasion-resistant and flame-retardant acrylic yarn, comprising: anti-pilling acrylic filaments, aramid filaments and chinlon filaments; the nylon filament is spirally wound outside the anti-pilling acrylic filament to form a composite yarn; the number of the composite yarns is three, the composite yarns are spirally wound outside the aramid filament yarn in the same direction, and the three composite yarns are uniformly distributed along the axial direction of the aramid filament yarn.

On the basis of the above scheme and as a preferable scheme of the above scheme, the surface area of the anti-pilling acrylic fiber filament covered by the nylon filament is less than or equal to one half of the total surface area.

On the basis of and as a preferred version of the above aspect, the composite yarn comprises a first composite yarn, a second composite yarn and a third composite yarn; the first composite yarn comprises the anti-pilling acrylic filaments and antibacterial nylon filaments wound outside the anti-pilling acrylic filaments; the second composite yarn comprises the anti-pilling acrylic fiber filament and an antistatic nylon filament wound outside the anti-pilling acrylic fiber filament; the third composite yarn comprises the anti-pilling acrylic filaments and flame-retardant nylon filaments wound outside the anti-pilling acrylic filaments.

On the basis of the scheme and as a preferable scheme of the scheme, spandex filaments are arranged inside the aramid filaments.

On the basis of the above scheme and as a preferable scheme of the above scheme, the aramid filament is aramid 1313.

On the basis of the scheme, as a preferable scheme of the scheme, the aramid filament yarn is externally wound with a twisted yarn formed by twisting and stranding bamboo charcoal fibers and viscose fibers; the arrangement ratio of the plied yarns to the composite yarns is 1: 1.

On the basis of the above scheme and as a preferable scheme of the above scheme, the fineness ratio of the plied yarn to the composite yarn is 1: 2.

The utility model has the beneficial effects that: the utility model uses three composite yarns to wrap one aramid fiber filament yarn, and has the advantages of high structural stability and strength, and high tensile and breaking strength. The aramid fiber filaments enable the yarn to have extremely excellent flame retardance, and meet the flame retardance requirements of various environments. The composite yarn consists of the anti-pilling acrylic filament and the nylon filament wound outside the anti-pilling acrylic filament, and the nylon filament has high strength, good wear resistance and fatigue failure resistance, so that the wear resistance of the yarn can be improved, and the anti-pilling performance of the yarn can be improved; compared with the common acrylic filament, the anti-pilling acrylic filament has better anti-pilling performance, and the woven fabric is not easy to pilling and has good texture.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

FIG. 3 is a schematic diagram of a third structure according to an embodiment of the present invention.

In the figure: 1. anti-pilling acrylic filaments; 2. aramid filaments; 3. nylon filament; 4. spandex filament; 5. plying yarns; 31. antibacterial nylon filament; 32. antistatic nylon filament; 33. flame-retardant nylon filament.

Detailed Description

The utility model is further described with reference to the following figures and specific examples.

The first embodiment is as follows:

as shown in fig. 1, an anti-pilling, abrasion-resistant and flame-retardant acrylic yarn comprises: anti-pilling acrylic filaments 1, aramid filaments 2 and nylon filaments 3; the nylon filament 3 is spirally wound outside the anti-pilling acrylic filament 1 to form a composite yarn; the number of the composite yarns is three, the composite yarns are spirally wound outside the aramid filament yarn 2 in the same direction, and the three composite yarns are uniformly distributed along the aramid filament yarn 2 in the axial direction. The winding structural strength of three compound yarns is higher, and application scope is wider, and the fineness of yarn is bigger simultaneously, and the surface fabric of weaving is thicker cold-proof.

Preferably, the preparation method of the anti-pilling acrylic fiber filament 1 comprises the following steps: mixing 93.5-94.5 wt% of acrylonitrile, 5.25-6.05 wt% of vinyl acetate and 0.25-0.45 wt% of sodium methallyl sulfonate, adjusting the concentration of the mixture to 30-40 wt%, and continuously carrying out aqueous phase suspension polymerization reaction at the temperature of 58-62 ℃ and the pH value of 2.5-3.5; the reacted polymer is stopped by chelation reaction, unreacted monomer is removed by a stripping tower, then the salt and water are removed by a washing filter, the powdery polymer obtained by drying after granulation forming is mixed and dissolved with dimethylacetamide, the spinning solution obtained by temperature adjustment and pressure regulation is spun at the pressure of 0.7-0.9MPa and the temperature of 90-95 ℃ after temperature adjustment and filtration, the concentration of dimethylacetamide solidified bath solution is 40-50 wt%, the temperature of the solidified bath is 38-50 ℃, the drawing multiple is 4-7 times after double diffusion forming, washing, oiling, drying and curling, and the anti-pilling acrylic fiber with the anti-pilling performance grade of more than 4 grades and the hook strength of 0.6 +/-0.2 CN/dtex is obtained by shaping with 120-grade 200KPa shaping pressure.

Specifically, the surface area of the anti-pilling acrylic fiber filament 1 coated by the nylon filament 3 is less than or equal to one half of the total surface area. In this example, the exposed surface area of the anti-pilling acrylic filament 1 is one half of the total surface area. And the semi-coating spiral winding is adopted, so that the yarn is softer in hand feeling and has excellent wear resistance.

Example two:

as shown in fig. 2, the present embodiment is different from the first embodiment in that: the three composite yarns are respectively a first composite yarn, a second composite yarn and a third composite yarn; the first composite yarn comprises the anti-pilling acrylic filament 1 and an antibacterial nylon filament 31 wound outside the anti-pilling acrylic filament 1; the second composite yarn comprises the anti-pilling acrylic fiber filament 1 and an antistatic nylon filament 32 wound outside the anti-pilling acrylic fiber filament 1; the third composite yarn comprises the anti-pilling acrylic filament 1 and a flame-retardant nylon filament 33 wound outside the anti-pilling acrylic filament 1. In the embodiment, the nylon filaments 3 are all functional nylon filaments, so that the functionality of the yarn is greatly enriched, the yarn has antibacterial and antistatic properties and more excellent flame retardance, and the texture of the yarn is improved.

Preferably, the preparation method of the antibacterial nylon filament 31 comprises the following steps: step a, carrying out cryogenic treatment on 8.40-9.07 parts of polyamide 6 slices at the treatment temperature of-100 ℃ to-30 ℃, and then crushing to obtain 100-500-mesh polyamide 6 powder; step b, carrying out coating treatment on the nano-scale antibacterial agent to obtain a nano-scale surface coated antibacterial agent with the surface coated with silicon dioxide or aluminum oxide; step c, mixing the polyamide 6 powder obtained in the step a, the nano-scale surface coating antibacterial agent obtained in the step b and a dispersing agent to obtain composite powder, and granulating the composite powder to prepare polyamide 6 master batch; d, mixing the polyamide 6 master batch obtained in the step c with the rest polyamide 6 slices, melting, extruding, entering a spinning assembly, and then winding to obtain polyamide 6 POY; and e, passing the chinlon 6POY obtained in the step d through a first roller, a twist stopper, a hot box, a cooling plate, a false twister, a second roller, a third roller and an oiling and winding device to obtain a finished product.

Preferably, the production steps of the antistatic nylon filament 32 include: a. under the protection of nitrogen, reacting bio-based pentanediamine with adipic acid in water to obtain a nylon 56 salt aqueous solution; b. adding the nylon 56 saline solution and the molecular weight regulator into a reactor, and maintaining the pressure for a period of time under the conditions that the temperature is 210-240 ℃ and the pressure is 1.7-1.85 MPa; releasing the pressure in the reactor, adding an antistatic agent, and raising the temperature to 275-290 ℃; vacuumizing and stirring for a period of time to obtain an antistatic modified nylon 56 polymer melt; c. and inputting the modified nylon 56 polymer melt into a spinning box, spinning through a spinneret plate at a certain temperature, cooling, guiding to a winding machine for oiling and moistening, and sequentially drawing, tension heat setting, curling, oiling and relaxation heat setting to obtain the antistatic nylon filament 32.

Preferably, the preparation method of the flame-retardant nylon filament 33 comprises the following steps: a. dissolving nylon 66 salt in water at 40-80 deg.c in a dissolving kettle, adding aminomethyl phenylphosphinic acid and introducing into the reactor under the protection of nitrogen; b. reacting at the temperature of 220 ℃ and 240 ℃ and the pressure of 1.5-2.0MPa for 2-4 hours, gradually releasing the pressure for 1-2 hours to 0.2-0.4MPa when the temperature is increased to 270 ℃, keeping the temperature of 270 ℃ and 280 ℃ and the pressure of 0.2-0.4MPa for 2-4 hours, and then keeping the temperature and releasing the pressure to-0.01-0.05 MPa; c. discharging under the pressure of nitrogen, and cooling the melt in water bath to obtain the finished product.

Example three:

as shown in fig. 3, in this embodiment, in addition to the first embodiment, spandex filaments 4 are arranged inside the aramid filaments 2, and the aramid filaments 2 are aramid fibers 1313. Spandex filament 4 has high elasticity, can promote the elasticity and the toughness of yarn, makes the yarn can be applicable to elastic fabric, has improved the suitability of yarn.

Further, a twisted yarn 5 formed by twisting and stranding bamboo charcoal fibers and viscose fibers is wound outside the aramid filament 2; the arrangement ratio of the plied yarns to the composite yarns is 1:1, and the fineness ratio of the plied yarns to the composite yarns is 1: 2. The bamboo charcoal fiber has the functions of moisture absorption, ventilation, antibiosis and bacteriostasis, the viscose fiber has the advantages of moisture absorption, ventilation, softness, good antistatic luster and the like, the plied yarn 5 formed by twisting the bamboo charcoal fiber and the viscose fiber has good moisture absorption and ventilation, the ventilation of the yarn is improved, the yarn has the effects of antibiosis, bacteriostasis and antistatic, and the texture and the applicability of the yarn are greatly improved.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. An anti-pilling wear-resistant flame-retardant acrylic yarn is characterized by comprising: anti-pilling acrylic filaments (1), aramid filaments (2) and nylon filaments (3); the nylon filament (3) is spirally wound outside the anti-pilling acrylic filament (1) to form a composite yarn; the number of the composite yarns is three, the composite yarns are spirally wound outside the aramid fiber filament (2) in the same direction, and the three composite yarns are axially and uniformly distributed along the aramid fiber filament (2).

2. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn according to claim 1, wherein the surface area of the anti-pilling acrylic filament (1) covered by the nylon filament (3) is less than or equal to one half of the total surface area.

3. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn according to claim 1, wherein the composite yarn comprises a first composite yarn, a second composite yarn and a third composite yarn; the first composite yarn comprises the anti-pilling acrylic filament (1) and an antibacterial nylon filament (31) wound outside the anti-pilling acrylic filament (1); the second composite yarn comprises the anti-pilling acrylic filament (1) and an antistatic nylon filament (32) wound outside the anti-pilling acrylic filament (1); the third composite yarn comprises the anti-pilling acrylic filament (1) and a flame-retardant nylon filament (33) wound outside the anti-pilling acrylic filament (1).

4. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn according to claim 1, wherein the aramid filament (2) is internally provided with a spandex filament (4).

5. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn according to claim 1, wherein the aramid filament (2) is aramid 1313.

6. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn as claimed in claim 1, wherein the aramid filament (2) is externally wound with a plied yarn (5) formed by twisting and plying bamboo charcoal fiber and viscose fiber; the arrangement ratio of the plied yarns to the composite yarns is 1: 1.

7. The anti-pilling, abrasion-resistant and flame-retardant acrylic yarn as claimed in claim 6, wherein the fineness ratio of the plied yarn to the composite yarn is 1: 2.