Preparation method of moisture-absorbing and quick-drying fabric with continuous cool feeling

Abstract

The invention discloses a preparation method of a fabric with continuous cool feeling, moisture absorption and quick drying, and relates to the technical field of research, development and production of textile materials, aluminum nitride nano powder and nylon 56 slices are combined to prepare nylon 56 master batches, and then the nylon 56 master batches are added into nylon 56 filaments in a pre-spinning adding mode, so that the nylon 56 filaments with the cool feeling function are prepared, and the specification of the filaments is 70 / 68 FDY. The contact cool feeling of the single-sided single jersey woven by adding 10% of spandex into 90% of the filaments can reach 0.37. According to the technology, material innovation and technology optimization are deeply fused, on the basis that the original advantages of nylon 56 are kept, breakthrough of the three functions of cool feeling, quick drying and antibiosis is achieved, and a reproducible innovation normal form is provided for development of functional textile materials.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of textile material research and production, in particular to a preparation method of a fabric with sustained cool feeling and moisture absorption and quick drying. BACKGROUND

[0002] Traditional cool fabric mainly realizes instant cool feeling through post-finishing process, and has three technical bottlenecks: 1) the organic coating such as xylitol has poor washing resistance, and the Qmax value decays by more than 30% after 5 washes; 2) although the profiled cross-section fiber (such as cross-shaped and Y-shaped) can improve the moisture transfer performance, the sustained cool feeling time is less than 15 minutes; 3) the application of nano materials is mostly concentrated in the post-finishing process, which causes the heat conduction network to be easily damaged by the fabric structure, and the 60-minute sustained cool feeling standard rate is less than 40%.

[0003] The thermal conductivity of aluminum nitride AlN is very high, generally 170 W / (m.k), and the thermal conductivity of polycrystalline aluminum nitride can even reach 260 W / (m.k). The thermal conductivity of polyester fiber is 0.084 W / (m.k), and the thermal conductivity of polyamide fiber is 0.244-0.337 W / (m.k). The aluminum nitride nano powder is very high in stability after surface modification treatment and does not hydrolyze, and the thermal conductivity effect is very obvious. The thermal conductivity of aluminum nitride is much higher than that of common mica, jade and other materials. Among the currently known materials, the application of aluminum nitride nano powder in cool fiber materials has the highest thermal conductivity. The semiconductor material aluminum nitride has the highest thermal conductivity among the currently known materials, with a thermal conductivity of 320 W / m·K, close to BeO and SiC, and more than 5 times that of Al2O3.

[0004] The preparation technology of the fabric with synergistic effect of cool feeling and quick drying function is a technical problem to be solved in the technical field. SUMMARY

[0005] Therefore, the present application aims to provide a preparation method of a fabric with sustained cool feeling and moisture absorption and quick drying, so as to solve the technical problems in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A preparation method of a fabric with sustained cool feeling and moisture absorption and quick drying, comprising the following preparation steps: Step one, mix aluminum nitride nano powder and PA56 chips at a mass ratio of 1:99, add two thousandths of modified zinc oxide nano powder, and dry at 90-100 DEG C to obtain a mixed gel; Step two, heat the mixed gel to 1500-1600 DEG C at a heating rate of 5 DEG C / min under the protection of inert gas, and naturally cool after 24 hours of treatment at 400-600 DEG C to obtain an aluminum nitride gel; Step three, mix the gel with PA56 resin in a mass ratio of 1:9, age at room temperature, secondary aging at 60-80 DEG C, then add silane modifier to dry to obtain a composite PA56 resin; Step four, granulate the composite resin with a stabilizer in a mass ratio of 95:5 to obtain a high-temperature-resistant aluminum nitride master batch; Step five, add the master batch to the PA56 filament spinning solution in a proportion of 5%, and melt spin through a special-shaped spinneret to obtain a functional fiber of 70D / 68FDY specification; Step six, blend the functional fiber with spandex in a ratio of 90:10, weave through single jersey fabric, and dye at 95-98 DEG C to obtain a finished fabric.

[0007] Preferably, the aluminum nitride nanopowder has a particle size of 20-50nm.

[0008] Preferably, the drying temperature in step one is 95 DEG C ± 2 DEG C.

[0009] Preferably, the silane modifier in step three is vinyl trimethoxysilane.

[0010] Preferably, the spinning temperature is controlled at 260-280 DEG C.

[0011] Preferably, the stabilizer is a hindered phenolic antioxidant.

[0012] Preferably, the spinning speed in step five is 3500m / min.

[0013] Preferably, the moisture regain of the finished fabric is controlled at 4.5-5.0%.

[0014] Preferably, the spandex is of 40D specification.

[0015] Preferably, the finished fabric needs to be subjected to a 120 DEG C pre-setting treatment.

[0016] In summary, the present application has the following advantages: The present application realizes a breakthrough in process, optimizes the spinning process, improves the specific surface area of the fiber through special-shaped spinneret design, and enhances the heat conduction efficiency by 5%. The master batch addition ratio of 5% is the best balance point verified by multiple tests. The weaving parameter innovation is the golden ratio of 90% functional fiber + 10% spandex, which takes into account the function and elasticity, optimizes the single jersey fabric structure, and improves the air circulation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall flow framework of the present application is shown in the figure; Figure 2 The detection data of the present application is shown in the figure; Figure One ; Figure 3 The detection data of the present application is shown in the figureFigure Two . DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. EMBODIMENT

[0019] A preparation method of a fabric with a lasting cool feeling and moisture absorption and quick drying, comprising the following preparation steps: The aluminum nitride nano powder and the PA56 chip are mixed according to a mass ratio of 1:99, and two-thousandth modified zinc oxide nano powder is added, the particle size of the aluminum nitride nano powder is 20-50 nm, and the mixed gel is obtained by drying at 90-100 DEG C, and the drying temperature is 95 DEG C + / - 2 DEG C; The mixed gel is heated to 1500-1600 DEG C at a heating rate of 5 DEG C / min under the protection of inert gas, and the aluminum nitride gel is obtained after natural cooling and treatment at 400-600 DEG C for 24 hours; The gel and the PA56 resin are mixed according to a mass ratio of 1:9, and after room temperature aging and secondary aging at 60-80 DEG C, a silane modifier is added to obtain a composite PA56 resin, and the silane modifier is vinyl trimethoxysilane; The composite resin and a stabilizer are granulated according to a mass ratio of 95:5 to obtain a high-temperature-resistant aluminum nitride master batch, and the stabilizer is a hindered phenolic antioxidant; The master batch is added to the PA56 filament spinning solution according to a proportion of 5%, and a functional fiber of 70D / 68FDY specification is prepared by melt spinning through a profiled spinneret, and the spinning temperature is controlled at 260-280 DEG C, and the spinning speed is 3500 m / min; The functional fiber and spandex are blended according to a proportion of 90:10, and a finished fabric is obtained after weaving through single-side jersey fabric, and the spandex is 40D specification and is dyed at 95-98 DEG C after acid dyeing, and the finished fabric has a moisture regain of 4.5-5.0%, and the finished fabric needs to be treated at 120 DEG C.

[0020] It should be noted that in the embodiment, the fiber uses artificially synthesized aluminum nitride, and other synergistic particles are compounded to achieve the effects of antibacterial, cool feeling, moisture absorption and quick drying, etc.; the aluminum nitride nano powder and the modified zinc oxide nano powder are mixed with the PA56 chip according to a certain mass ratio to prepare a PA56 composite functional master batch; 4-8% of the PA56 composite functional master batch is added before spinning, and a profiled spinneret is used to prepare a cool profiled antibacterial polyamide 56 fiber through a melt spinning process.

[0021] Aluminum nitride nano-powder is combined with nylon 56 chips to make nylon 56 masterbatch, which is then added to nylon 56 filaments by means of pre-spinning, thereby making nylon 56 filaments with cooling function, filament specification 70 / 68 FDY. The single-sided sweat cloth woven with 90% of such filaments and 10% of spandex has a contact cooling of 0.37, while ordinary nylon only has 0.25; moreover, the continuous cooling can reach level one, and the fabric has good moisture absorption and quick-drying functions and good antibacterial performance.

[0022] As shown in Figure 1 , the process includes the following steps: Manufacture of aluminum nitride PA56 masterbatch: Among them, the addition ratio of aluminum nitride powder is 2 parts per thousand.

[0023] I. The preparation method of the masterbatch includes the following steps: (1) Add vinyltrimethoxysilane, trimethoxysilane and alkali catalyst to an ethanol aqueous solution, stir, and place in a drying oven at 90-100℃ to obtain a mixed gel, ready for use; (2) Under the conditions of inert gas, vacuum pressure and heating rate, heat the mixed gel to 1500-1600℃ for reaction, naturally cool to room temperature, and finally place in a device heated at 400-600℃ for 2-4 hours to obtain an aluminum nitride gel; (3) Add the gel to the PA resin, stir, age at room temperature, add anhydrous ethanol, age at 60-80℃, add a modifier, stir, and dry to obtain a composite PA56 resin at room temperature; (4) Stir the composite PA56 and the stabilizer at room temperature, and use a granulator to granulate to obtain the high-temperature-resistant aluminum nitride masterbatch with the best hydrophobic property.

[0024] II. Spinning process of PA56 filaments: the addition ratio of the masterbatch in the spinning process is 5%, and the masterbatch needs to be dried before use, with a spinning specification of 70D / 68FDY.

[0025] III. Weaving of single-sided cooling fabric: the ratio of the functional filaments is 90%, and the ratio of ordinary spandex is 10%. The fabric organization is single-sided sweat cloth.

[0026] IV. It is suggested to use acid dyes, and the dyeing temperature is suggested to be 95-98℃, and the temperature can be appropriately reduced for white color.

[0027] As shown in Figure 2 and Figure 3 , the test results of the finished fabric, wherein, it is noted that the continuous cooling test standard is TCNGA23-2021 level project The highest temperature in 5-60 min is required to be <30℃ in the 60th min <27℃ Secondary (5~60) min maximum temperature 60 min average temperature <30℃ <30 Moisture absorption and quick drying GB / T21655.2-2019 before and after washing.

[0028] The above examples only illustrate the technical idea of the present application and cannot limit the protection scope of the present application. Any modification made according to the technical idea of the present application on the basis of the technical scheme falls within the protection scope of the present application.

Claims

1. A process for the preparation of a fabric having a cool feel and moisture wicking, characterized in that, It comprises the following preparation steps: Step one, mix aluminum nitride nano-powder with PA56 chip according to the mass ratio of 1:99, add two-thousandths of modified zinc oxide nano-powder, dry at 90-100℃ to obtain mixed gel; Step two, heat the mixed gel to 1500-1600℃ at a heating rate of 5℃ / min under inert gas protection, naturally cool, and then treat at 400-600℃ for 24 hours to obtain aluminum nitride gel; Step three, mix the gel with PA56 resin according to the mass ratio of 1:9, age at room temperature, age again at 60-80℃, then add silane modifier and dry to obtain composite PA56 resin; Step four, granulate the composite resin with stabilizer according to the mass ratio of 95:5 to obtain high-temperature-resistant aluminum nitride master batch; Step five, add the master batch to PA56 filament spinning solution according to the proportion of 5%, melt spin through special spinneret to obtain functional fiber of 70D / 68FDY specification; Step six, blend the functional fiber with spandex according to the proportion of 90:10, weave through single-side single jersey, and then dye at 95-98℃ to obtain finished fabric.

2. A process for preparing a fabric having a cool feel and moisture wicking properties as claimed in claim 1, wherein, The particle size of the aluminum nitride nano-powder is 20-50nm.

3. The method for preparing a fabric with continuous cooling sensation and quick-drying moisture absorption according to claim 1, characterized in that, The drying temperature in step one is 95℃±2℃.

4. A process for preparing a fabric having a cool feel and moisture wicking properties as claimed in claim 1, wherein, The silane modifier in step three is vinyl trimethoxysilane.

5. A process for preparing a fabric with sustained coolness and moisture wicking and quick drying as claimed in claim 1, wherein, The spinning temperature is controlled at 260-280℃.

6. A process for preparing a fabric with a cool feel and moisture wicking properties as claimed in claim 1, wherein, The stabilizer is hindered phenolic antioxidant.

7. A process for preparing a fabric with a cool feel and moisture wicking properties as claimed in claim 1, wherein, The spinning speed in step five is 3500m / min.

8. A process for preparing a fabric having a cool feel and moisture wicking properties as claimed in claim 1, wherein, The moisture regain of the finished fabric is controlled at 4.5-5.0%.

9. A process for preparing a fabric having a cool feel and moisture wicking properties as claimed in claim 1, wherein, The spandex is of 40D specification.

10. A process for preparing a fabric having a cool feel and moisture wicking properties as claimed in claim 1, wherein, The finished fabric needs to be pre-set at 120℃.

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