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CN-121992556-A - Moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon-ammonia fabric and preparation method thereof

CN121992556ACN 121992556 ACN121992556 ACN 121992556ACN-121992556-A

Abstract

The invention discloses a moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon ammonia fabric and a preparation method thereof, and belongs to the technical field of textiles. The preparation method of the fabric comprises the steps of mixing boron nitride and polyurethane to obtain a polyurethane/boron nitride mixture as a first component, spinning pure polyurethane as a second component, obtaining single fibers containing two components through double-component spinning, drawing, cooling and solidifying to obtain polyurethane-polyurethane/boron nitride composite filaments, heating polyamide master batches, spinning by using a spinneret plate containing spinneret holes with special sections, drawing and cooling to obtain the polyamide filaments with special sections, and weaving the polyamide filaments with special sections by using the polyurethane-polyurethane/boron nitride composite filaments as elastic yarns and the polyamide filaments with special sections as main yarns. The fabric prepared by the method has lasting cool feeling, moisture absorption and perspiration property, and anti-hooking and comfort properties, and can better meet the requirements of consumers on the fabric with lasting cool feeling and comfort.

Inventors

  • ZHANG TIANHONG
  • SHEN XIAOLI
  • XIAO XUELIANG
  • LIN RUI
  • LI FULIN
  • HUANG YUNPENG
  • ZHANG YAXIU

Assignees

  • 江苏苏美达纺织有限公司

Dates

Publication Date
20260508
Application Date
20260226

Claims (10)

  1. 1. The preparation method of the moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon ammonia fabric is characterized by comprising the following steps of: S1, mixing boron nitride with polyurethane to obtain a polyurethane/boron nitride mixture as a first component, wherein pure polyurethane is used as a second component; extruding the first component and the second component through a composite spinning component to obtain single fibers containing the two components through double-component spinning, drawing, cooling and solidifying to obtain polyurethane-polyurethane/boron nitride composite filaments; S2, after heating up the nylon master batch, spinning by using a spinneret plate with a spinneret orifice with a special-shaped section, and drawing and cooling to obtain a nylon filament with the special-shaped section; s3, taking the polyurethane-polyurethane/boron nitride composite filaments of S1 as elastic yarns and the nylon filaments with special-shaped cross sections of S2 as main yarns, and performing doubling weaving to obtain grey cloth; And S4, cleaning, drying and shaping the gray fabric in the step S3 to obtain the moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon ammonia fabric.
  2. 2. The method of claim 1, wherein in S1, the boron nitride is modified boron nitride; the modified boron nitride is obtained by heating wet boron nitride particles, cooling, washing and drying; The temperature of the heating is 1100 ℃ and the time is 1h.
  3. 3. The preparation method according to claim 2, wherein the wet boron nitride particles are obtained by adding water to a boron nitride raw material, performing ultrasonic dispersion to obtain a suspension, centrifuging or suction filtering, collecting a precipitate, and drying; The mass ratio of the boron nitride raw material to the water is 1:10-1:20; The ultrasonic dispersion time is 30-60 min, the power is 400-800W, and the frequency is 20-40 kHz; the wet boron nitride particles are prepared at a drying temperature of 50-60 ℃ and are not completely dried, and preferably the moisture content of the wet boron nitride particles is 0.5%.
  4. 4. The preparation method according to claim 1, wherein in S1, the mass ratio of the boron nitride to the polyurethane in the first component is 90-96:4-10; preferably, the polyurethane is dried before use; more preferably, the drying temperature is 55-65 ℃ and the drying time is 22-26 hours; the section of the single fiber containing the bicomponent is a circle formed by splicing a first fan shape and a second fan shape; the first fan is provided with a first component, the second fan is provided with a second component, and the central angle of the first fan is 45-90 degrees; the draft multiple of the draft is 1.1-1.5.
  5. 5. The method according to claim 1, wherein in S2, the temperature rise is a three-stage temperature rise; Preferably, the three-stage heating is performed by heating to 85-95 ℃, preserving heat for 3-4 min, heating to 175-185 ℃ and preserving heat for 3-5 min, and heating to 220-260 ℃.
  6. 6. The method according to claim 1, wherein in S2, the spinneret holes with the special-shaped cross section are spinneret holes with at least one groove in the cross section; preferably, the cross section of the spinneret hole with the special-shaped cross section is flat, and the spinneret hole with at least one groove is formed.
  7. 7. The method according to claim 1, wherein in S2, the spinning speed is 550 to 650m/min; The draft multiple of the draft is 3.1-3.3; the cooling is carried out by adopting two sections of hot air; The two-stage hot air cooling method comprises the steps that the air speed of a first stage is 0.2-0.4 m/s, the temperature is 145-155 ℃, the air speed of a second stage is 0.5-0.7 m/s, and the temperature is 35-45 ℃.
  8. 8. The preparation method of the fabric according to claim 1, wherein in the step S3, single-layer weft knitting plain weave is adopted for weaving, preferably, the weaving path number is 4F, and the machine speed is 25-27 r/min; The surface density of the grey cloth is 145-155 g/m 2 ; In the grey cloth, the mass fraction of nylon filaments with special-shaped cross sections is 85-90%.
  9. 9. The method according to claim 1, wherein in S4, the cleaning is performed by immersing the grey cloth in a cleaning solution, heating to 70-80 ℃, maintaining the temperature for 0.4-0.6 h, and then cooling to room temperature; the cleaning liquid comprises, by mass, 0.1-0.3% of alkali, 0.4-0.6% of acid, 0.04-0.06% of reducing agent, and the balance of water; the alkali comprises at least one of sodium carbonate and sodium bicarbonate; The acid comprises at least one of acetic acid and citric acid; the reducing agent comprises at least one of sodium dithionite and thiourea dioxide; The temperature rising rate is 1-3 ℃ per minute; The cooling rate is 1-3 ℃ per minute; the shaping temperature is 145-155 ℃.
  10. 10. A moisture-absorbing sweat-releasing cold silk-resistant nylon ammonia fabric prepared by the preparation method of any one of claims 1-9.

Description

Moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon-ammonia fabric and preparation method thereof Technical Field The invention relates to the technical field of textile, in particular to a moisture-absorbing sweat-releasing silk-hooking-resistant cool-feeling nylon ammonia fabric and a preparation method thereof. Background With the trend of global warming and the rise of the national demand for high-quality life, the market has made urgent demands for home textile products with cooling, ventilation, moisture absorption, perspiration and other functions. Although people favor natural fibers, the natural fibers still have certain limitations in practical use, the cotton fabrics are slow in moisture dissipation, the moisture squeezes the air inside the fabrics and the cotton fibers away, the heat preservation of the fabrics is reduced, a cool feeling can be generated, and the pure cotton fabrics are poor in wet and hot comfortableness. Silk is soft, the contact area with human body is large, the wearing cool feeling is good, but silk fabric is usually light and thin, the sweat absorbing capacity is poor, and the silk fabric can be attached to a human body after exceeding the absorbing capacity, so that wet feeling is generated. Therefore, it is necessary to develop a fabric with cool feeling, moisture absorption and sweat release, so as to meet the requirements of people on cooling and comfort. The conventional technology of cool feeling fabrics in the market at present is mainly characterized in that 1, modification of fiber raw materials, such as adding substances which enhance thermal conductivity, such as jade powder, mica powder, borneol and the like, into the fibers, so that the contact temperature of the fibers is reduced or the cross section of the fibers is changed to accelerate sweat conduction. 2. The structural design of the fabric tissue utilizes the principles of point, line contact, differential hair effect and the like to design various fabric tissue structures, such as a single-layer structure, a double-layer structure and a multi-layer structure. 3. After finishing of the fabric, hydrophilic modification is carried out on the fabric, namely various hydrophilic assistants are combined with hydrophobic fibers by adopting a matched after finishing procedure, so that the fabric is endowed with good hygroscopicity. However, the prior art has the defects that the functions are unbalanced, most cool sense fabrics focus on single heat conductivity, the performances of key links such as moisture absorption, moisture conduction and quick drying are not matched, and the overall comfort level is poor in a high-temperature and high-humidity environment. The durability is poor, and functions (such as hydrophilicity and cool feeling) endowed by the after-finishing technology are easy to decay or lose efficacy after multiple times of water washing. The structure is complex, although the multi-layer composite fabric can integrate multiple functions, the air permeability, the softness and the wearing comfort are often sacrificed, and the cost is high. The problem of easy yarn hooking is that the mechanical property and yarn hooking resistance of the fabric are often ignored while pursuing cool feeling and moisture transfer. At present, the existing cool sense fabric in the market mostly realizes the basic cool sense function by using heat conducting fibers or after-finishing technology. However, the disadvantages of poor hygroscopicity and poor air permeability are common. When the sweat is worn, sweat is not easy to lead out and evaporate, so that stuffy and sticky discomfort is easy to generate, and wearing comfort is affected. In the patent number 202510507848.1, yuan Meng and the like provide an antibacterial cool sense polylactic acid fiber fabric, a preparation method and application thereof, a cool sense layer and an antibacterial layer are combined together to realize function integration, the core of the cool sense function is rapid moisture conduction and heat dissipation, and the double-layer fabric seriously blocks air circulation and water vapor evaporation. Meanwhile, the softness and the draping feel of the underwear are also affected, and the wearing comfort is sacrificed. In the patent of 202510215941.5, ran Shibao and the like, a cool fiber knitted fabric and a preparation method thereof are provided, and in order to realize the moisture absorption and ageing resistance functions of polyethylene fibers, four steps of chemical surface modification, namely pretreatment, amination, activation and modification are carried out on the polyethylene fibers, so that the process is complex and tedious, the cost and the environmental protection have great cost, and the feasibility and the economical efficiency of industrial production are lacked. In the patent of 202510086017.1, shen Zhangxian and the like, a production and preparation process of cool cotton fiber bedding fabr