Fiber filament with good moisture absorption and sweat releasing performance and preparation method thereof

Abstract

The invention provides a fiber filament with good moisture absorption and sweat releasing performance and a preparation method thereof, the fiber filament comprises 60%-90% by weight of a component A with high crystallinity and 10%-40% by weight of a component B with low crystallinity, and the component B is a polymer formed by mixing a modified acid monomer and a polyester polymer monomer. The polyamide fiber filament provided by the invention has the excellent characteristics of strong absorption and discharge capability, skin-friendly comfort and the like.

Description

Technical Field

[0001] The invention relates to the technical field of fiber filaments, and in particular to a fiber filament with good moisture absorption and perspiration discharge performance and a preparation method thereof. Background Art

[0002] At present, the water absorption and moisture absorption effect of nylon fiber filament is mainly due to the fiber triangle, trilobal, pentagonal and cross-shaped structures. Its special-shaped cross-section is different from the conventional circular cross-section. Although the water absorption and moisture absorption effect is improved compared with the conventional round nylon, the prism luster of the fiber gives people a dazzling and unnatural feeling. Especially when sweating a lot, the fabric is prone to sticking and stuffiness, affecting the wearer's wearing comfort.

[0003] The spinning technology of nylon polygonal and special-shaped fibers (such as trilobal, pentagonal and cross-shaped) is relatively difficult, and the cross-sectional morphology of the fiber spinning is unstable and easy to deform. The production of nylon special-shaped fibers with six or eight leaves and angles or more is relatively difficult, the quality of the fiber products is unstable, and there are currently no related nylon fiber products on the market. Therefore, the present application designs a method for preparing nylon fibers with good moisture absorption and perspiration management properties and stable product performance to improve the skin-friendly comfort of nylon fibers with 6 or 8 leaves or more. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a fiber filament with good moisture absorption and perspiration discharge performance and a preparation method thereof. The fiber filament with good moisture absorption and perspiration discharge performance has excellent characteristics such as strong absorption and perspiration discharge capacity and skin-friendly comfort.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A fiber filament with good moisture absorption and perspiration removal performance comprises a component A with a high crystallinity of 60%-90% by weight and a component B with a low crystallinity of 10%-40% by weight, wherein the component B is a polymer mixed with a modified acid monomer and a polyester polymer monomer.

[0007] Preferably, the fiber filament also includes a modifier with a weight percentage of 5%-15%, wherein the components of the modifier include the following raw materials in weight parts: 30-40 parts of high-density polyethylene, 20-30 parts of maleic anhydride grafted polyethylene, 20-30 parts of polylactic acid, 1-5 parts of silver-loaded zirconium phosphate powder, 15-25 parts of graphene, 0.2-1.0 parts of antistatic agent, and 0.2-1.0 parts of stabilizer.

[0008] Preferably, the modified acid monomer is one or more of adipic acid, azelaic acid, terephthalic acid, isophthalic acid, cyclohexane-1,4-dicarboxylic acid, 1,6-hexanediamine, trimethyl-1,6-hexanediamine, 4,4'-diamino-dicyclohexylpropane, isophorone diamine, caprolactam, and 4,4'-diphenylmethane diisocyanate.

[0009] Preferably, the polyester polymer monomer is one or more of dicarboxylic acid, p-alkylbenzoic acid, isophthalic acid, glycol, dimethanol, and diester.

[0010] Preferably, component A is one of polyamide polymers such as nylon 6, nylon 66, nylon 11, nylon 12, nylon 56, etc., all of which are nylon fibers.

[0011] The present invention also discloses a method for preparing fiber filaments with good moisture absorption and perspiration wicking performance, and the preparation method comprises the following steps:

[0012] S1. Weigh component A, component B and modifier in proportion, put them into a vacuum drying oven for 4 hours to reduce the water content of the blend to below 0.005%, use a screw extruder to granulate, and then perform melt spinning to fill and surround the periphery and gaps of component A with component B;

[0013] S2. Take the fiber filaments obtained in step S1, treat them in hot water at 70°C-100°C for 80min-180min with 1%-3% methanol and 1% butyl glycidyl ether, and then treat them with 1-4% NaOH concentration. Component B is dissolved in water, and octagonal gear-shaped nylon fiber filaments composed of component A appear, which is the result.

[0014] Preferably, the processing parameters of melt spinning in step S1 are as follows: spinneret hole number 50, spinneret hole diameter 0.25 mm, pump supply 34.0 cm / min, spinning temperature 160°C-290°C, curling speed 2800-3600 m / min, and cooling condition is side blowing at 25°C.

[0015] Preferably, each gear angle in the monofilament cross section of the obtained nylon fiber filament is an equilateral trapezoid, the acute angle α is 70°-90°, the obtuse angle β is 90°-110°, the outer circle radius is R, the inner circle radius is r, 2R=3r, and the center line width L of the gear is 1 / 2r.

[0016] The beneficial effects of the present invention are:

[0017] The present invention adopts composite spinning technology to use low-crystallization and easily soluble B component as filling material to stabilize the octagonal gear cross-sectional shape of A component nylon fiber, and produces nylon fiber with good moisture absorption, quick drying and excellent skin-friendly performance.

[0018] The strength of nylon fiber is greater than that of the high-density polyethylene matrix. When the fabric made of fiber filaments is subjected to external loads, the shear stress generated between the high-density polyethylene matrix and the surface of the nylon fiber filaments will be transferred from the matrix to the fiber. At the same time, the fiber and the matrix will limit each other's deformation, thereby achieving a reinforcement effect, which is beneficial to improving the stability of the fiber filaments and the fabrics made from them.

[0019] Silver-loaded zirconium phosphate powder has good antibacterial properties. Polylactic acid is used as the raw material to make fiber filaments, which makes the fabric have excellent skin-friendliness, air permeability and moisture absorption, which is beneficial to improving the wearing experience of nylon fiber fabrics.

[0020] Graphene has excellent thermal stability and can form a barrier to prevent degradation products from penetrating into the main molecular structure. Graphene-modified nylon fibers have high breaking strength, warmth retention and thermal stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional view of the fiber 1F;

[0022] Figure 2 This is the cross-sectional shape of the nylon fiber after component B is removed. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] A fiber filament with good moisture absorption and perspiration removal performance comprises 60% by weight of a component A with high crystallinity, 35% by weight of a component B with low crystallinity and 5% by weight of a modifier, wherein the component B is a polymer formed by mixing a modified acid monomer and a polyester polymer monomer.

[0026] Specifically: component A is nylon 6, the modified acid monomer is adipic acid, and the polyester polymer monomer is diformic acid.

[0027] The components of the modifier include the following raw materials in parts by weight: 30 parts of high-density polyethylene, 20 parts of maleic anhydride grafted polyethylene, 20 parts of polylactic acid, 1 part of silver-loaded zirconium phosphate powder, 15 parts of graphene, 0.2 parts of antistatic agent, and 0.2 parts of stabilizer.

[0028] This embodiment also discloses a method for preparing fiber filaments with good moisture absorption and perspiration wicking performance, and the preparation method comprises the following steps:

[0029] S1. Weigh component A, component B and modifier in proportion, put them into a vacuum drying oven for 4 hours to reduce the water content of the blend to below 0.005%, use a screw extruder to granulate, and then perform melt spinning to fill and surround the periphery and gaps of component A with component B;

[0030] The processing parameters of melt spinning are as follows: spinneret hole number 50, spinneret hole diameter 0.25 mm, pump supply 34.0 cm / min, spinning temperature 160 °C, crimping speed 2800 m / min, cooling condition side blowing 25 °C;

[0031] S2, taking the fiber filament obtained in step S1, treating it with 1% methanol and 1% butyl glycidyl ether in hot water at 70°C for 80 minutes, and then treating it with 1% NaOH, component B is dissolved in water, and octagonal gear-shaped nylon fiber filaments composed of component A are revealed, which is the obtained product;

[0032] Each gear angle in the monofilament cross section of nylon fiber filament is an equilateral trapezoid, with an acute angle α of 70°, an obtuse angle β of 110°, an outer circle radius of R, an inner circle radius of r, 2R=3r, and a centerline width L of 1 / 2r.

[0033] Embodiment 2:

[0034] A fiber filament with good moisture absorption and perspiration removal performance comprises 75% by weight of a component A with high crystallinity, 10% of a component B with low crystallinity and 15% of a modifier, wherein the component B is a polymer mixed with a modified acid monomer and a polyester polymer monomer.

[0035] Specifically: component A is nylon 66, the modified acid monomer is azelaic acid, and the polyester polymer monomer is p-alkylbenzoic acid.

[0036] The components of the modifier include the following raw materials in parts by weight: 40 parts of high-density polyethylene, 30 parts of maleic anhydride grafted polyethylene, 30 parts of polylactic acid, 5 parts of silver-loaded zirconium phosphate powder, 25 parts of graphene, 1.0 part of antistatic agent, and 1.0 part of stabilizer.

[0037] This embodiment also discloses a method for preparing fiber filaments with good moisture absorption and perspiration wicking performance, and the preparation method comprises the following steps:

[0038] S1. Weigh component A, component B and modifier in proportion, put them into a vacuum drying oven for 4 hours to reduce the water content of the blend to below 0.005%, use a screw extruder to granulate, and then perform melt spinning to fill and surround the periphery and gaps of component A with component B;

[0039] The processing parameters of melt spinning are as follows: spinneret hole number 50, spinneret hole diameter 0.25 mm, pump supply 34.0 cm / min, spinning temperature 290 °C, crimping speed 3600 m / min, cooling condition side blowing 25 °C;

[0040] S2, taking the fiber filament obtained in step S1, treating it with 3% methanol and 1% butyl glycidyl ether in hot water at 100°C for 180 minutes, and then treating it with 4% NaOH, component B is dissolved in water, and octagonal gear-shaped nylon fiber filaments composed of component A are revealed, which is the obtained product;

[0041] Each gear angle in the monofilament cross section of nylon fiber filament is an equilateral trapezoid, with an acute angle α of 90°, an obtuse angle β of 90°, an outer circle radius of R, an inner circle radius of r, 2R=3r, and a center line width L of 1 / 2r.

[0042] Embodiment 3:

[0043] A fiber filament with good moisture absorption and perspiration removal performance comprises 70% by weight of a component A with high crystallinity, 20% of a component B with low crystallinity and 10% of a modifier, wherein the component B is a polymer mixed with a modified acid monomer and a polyester polymer monomer.

[0044] Specifically: component A is nylon 11, the modified acid monomer is terephthalic acid, and the polyester polymer monomer is isophthalic acid.

[0045] The components of the modifier include the following raw materials in parts by weight: 35 parts of high-density polyethylene, 25 parts of maleic anhydride grafted polyethylene, 25 parts of polylactic acid, 3 parts of silver-loaded zirconium phosphate powder, 20 parts of graphene, 0.6 parts of antistatic agent, and 0.6 parts of stabilizer.

[0046] This embodiment also discloses a method for preparing fiber filaments with good moisture absorption and perspiration wicking performance, and the preparation method comprises the following steps:

[0047] S1. Weigh component A, component B and modifier in proportion, put them into a vacuum drying oven for 4 hours to reduce the water content of the blend to below 0.005%, use a screw extruder to granulate, and then perform melt spinning to fill and surround the periphery and gaps of component A with component B;

[0048] The processing parameters of melt spinning are as follows: spinneret hole number 50, spinneret hole diameter 0.25 mm, pump supply 34.0 cm / min, spinning temperature 230 °C, crimping speed 3200 m / min, cooling condition side blowing 25 °C;

[0049] S2, taking the fiber filament obtained in step S1, treating it with 2% methanol and 1% butyl glycidyl ether in hot water at 85°C for 130 minutes, and then treating it with 2% NaOH, component B is dissolved in water, and octagonal gear-shaped nylon fiber filaments composed of component A are revealed, which is the obtained product;

[0050] Each gear angle in the monofilament cross section of nylon fiber filament is an equilateral trapezoid, with an acute angle α of 80°, an obtuse angle β of 100°, an outer circle radius of R, an inner circle radius of r, 2R=3r, and a centerline width L of 1 / 2r.

[0051] Comparative Example 1:

[0052] A fiber filament with good moisture absorption and perspiration wicking properties, the fiber filament with good moisture absorption and perspiration wicking properties is different from Example 3 only in that no high-density polyethylene is added.

[0053] Comparative Example 2:

[0054] A fiber filament with good moisture absorption and perspiration wicking performance, the fiber filament with good moisture absorption and perspiration wicking performance is different from Example 3 only in that no maleic anhydride grafted polyethylene is added

[0055] Comparative Example 3:

[0056] A fiber filament with good moisture absorption and perspiration removal performance, the fiber filament with good moisture absorption and perspiration removal performance is different from Example 3 only in that no polylactic acid is added.

[0057] Comparative Example 4:

[0058] A fiber filament with good moisture absorption and perspiration removal performance. The fiber filament with good moisture absorption and perspiration removal performance is different from Example 3 only in that: no silver-loaded zirconium phosphate powder is added.

[0059] Comparative Example 5:

[0060] A fiber filament with good moisture absorption and perspiration resistance, the fiber filament with good moisture absorption and perspiration resistance being different from Example 3 only in that no graphene is added.

[0061] Comparative Example 6:

[0062] A fiber filament with good moisture absorption and perspiration resistance, the fiber filament with good moisture absorption and perspiration resistance being different from Example 3 only in that the blend is not subjected to a drying step.

[0063] Comparative Example 7:

[0064] A fiber filament with good moisture absorption and perspiration removal performance, the fiber filament with good moisture absorption and perspiration removal performance is different from Example 3 only in that it is not treated with methanol in step S2.

[0065] Comparative Example 8:

[0066] A fiber filament with good moisture absorption and perspiration removal performance, the fiber filament with good moisture absorption and perspiration removal performance is different from Example 3 only in that it is not treated with butyl glycidyl ether in step S2.

[0067] Comparative Example 9:

[0068] A fiber filament with good moisture absorption and perspiration removal performance, the fiber filament with good moisture absorption and perspiration removal performance is different from Example 3 only in that it is not treated with NaOH in step S2.

[0069] Comparative Example 10:

[0070] A fiber filament with good moisture absorption and perspiration resistance, the fiber filament with good moisture absorption and perspiration resistance is different from Example 3 only in that no modified acid monomer is added.

[0071] Comparative Example 11:

[0072] A fiber filament with good moisture absorption and perspiration discharge performance, the fiber filament with good moisture absorption and perspiration discharge performance is different from Example 3 only in that no polyester polymer monomer is added.

[0073] The fiber filaments obtained in the above Examples 1-3 and Comparative Examples 1-9 were subjected to performance tests to measure the comprehensive performance of the fiber filaments. The results are shown in Table 1.

[0074] Table 1 Performance parameters of fiber filaments obtained in Examples 1-3 and Comparative Examples 1-9

[0075]

[0076] In summary: the present invention adopts composite spinning technology and utilizes low-crystallization and easily soluble B component as a filling material to stabilize the octagonal gear cross-sectional shape of the A component nylon fiber, thereby producing nylon fiber with good moisture absorption, quick drying and excellent skin-friendly properties.

[0077] Silver-loaded zirconium phosphate powder has good antibacterial properties. Polylactic acid is used as the raw material to make fiber filaments, which makes the fabric have excellent skin-friendliness, air permeability and moisture absorption, which is beneficial to improving the wearing experience of nylon fiber fabrics.

[0078] Graphene has excellent thermal stability and can form a barrier to prevent degradation products from penetrating into the main molecular structure. Graphene-modified nylon fibers have high breaking strength, warmth retention and thermal stability.

[0079] Finally, the embodiment of the present invention also discloses a method for making a nylon suction and discharge fabric:

[0080] (1) Nylon suction fabric grey cloth: nylon suction filaments made of 70D / 72F are used as warp yarns, nylon suction fiber filaments 70D / 72F are used as weft yarns, warp and weft density: (68-78)*(50-46) roots / cm, and the organization is 1 / 2 left oblique.

[0081] (2) Dyeing and finishing technology methods:

[0082] a) The current process technology flow: nylon suction and discharge fiber grey cloth - 95℃ open width refining * 30m / min - weight reduction process: benzyl alcohol mass percentage 1%-3%, butyl glycidyl ether mass percentage 1%, weight ratio 2%-3% NaOH, temperature (70℃-100℃) * time (80min-180min) - 150℃ pre-setting * 30m / min * overfeed between 3% and 6% - acid dye - dyeing at a temperature of about 100° - 170℃ setting * 30m / min - hair effect finishing: carbon brush speed 10m / min, 1 forward, 2 reverse, 3 forward, 4 reverse, carbon fiber brush mesh: 300, 300, 400, 400 - finished product.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fiber filament having good moisture absorption and perspiration wicking properties, characterized in that: The fiber filament comprises a component A with a high crystallinity of 60% to 90% by weight and a component B with a low crystallinity of 10% to 40% by weight, wherein the component B is a polymer mixed with a modified acid monomer and a polyester polymer monomer.

2. The fiber filament with good moisture absorption and perspiration wicking performance according to claim 1, characterized in that: The fiber filament also includes a modifier with a weight percentage of 5%-15%, wherein the components of the modifier include the following raw materials in weight parts: 30-40 parts of high-density polyethylene, 20-30 parts of maleic anhydride grafted polyethylene, 20-30 parts of polylactic acid, 1-5 parts of silver-loaded zirconium phosphate powder, 15-25 parts of graphene, 0.2-1.0 parts of antistatic agent, and 0.2-1.0 parts of stabilizer.

3. The fiber filament with good moisture absorption and perspiration wicking performance according to claim 2, characterized in that: The modified acid monomer is one or more of adipic acid, azelaic acid, terephthalic acid, isophthalic acid, cyclohexane-1,4-dihydroxy acid, 1,6-hexanediamine, trimethyl-1,6-hexanediamine, 4,4'-diamino-dicyclohexylpropane, isophorone diamine, caprolactam, and 4,4'-diphenylmethane diisocyanate.

4. The fiber filament with good moisture absorption and perspiration wicking performance according to claim 3, characterized in that: The polyester polymer monomer is one or more of dicarboxylic acid, p-alkylbenzoic acid, isophthalic acid, glycol, dimethanol and diester.

5. The fiber filament with good moisture absorption and perspiration wicking performance according to claim 3, characterized in that: Component A is one of the polyamide polymers such as nylon 6, nylon 66, nylon 11, nylon 12, nylon 56, etc., all of which are nylon fibers.

6. A method for preparing fiber filaments with good moisture absorption and perspiration wicking properties according to any one of claims 1 to 5, characterized in that: The preparation method comprises the following steps: S1. Weigh component A, component B and modifier in proportion, put them into a vacuum drying oven for 4 hours to reduce the water content of the blend to below 0.005%, use a screw extruder to granulate, and then perform melt spinning to fill and surround the periphery and gaps of component A with component B; S2. Take the fiber filaments obtained in step S1, treat them in hot water at 70°C-100°C for 80min-180min with 1%-3% methanol and 1% butyl glycidyl ether, and then treat them with 1-4% NaOH concentration. Component B is dissolved in water, and octagonal gear-shaped nylon fiber filaments composed of component A appear, which is the result.

7. The method for preparing fiber filaments with good moisture absorption and perspiration wicking properties according to claim 6, characterized in that: The processing parameters of melt spinning in step S1 are as follows: spinneret hole number 50, spinneret hole diameter 0.25 mm, pump supply 34.0 cm / min, spinning temperature 160°C-290°C, curling speed 2800-3600 m / min, and cooling condition is side blowing at 25°C.

8. The method for preparing fiber filaments with good moisture absorption and perspiration wicking properties according to claim 6, characterized in that: Each gear angle in the monofilament cross section of the obtained nylon fiber filament is an equilateral trapezoid, the acute angle α is 70°-90°, the obtuse angle β is 90°-110°, the outer circle radius is R, the inner circle radius is r, 2R=3r, and the center line width L of the gear is 1 / 2r.

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