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CN-122008653-A - Unidirectional moisture-conducting non-watermark functional mesh cloth and production method thereof

CN122008653ACN 122008653 ACN122008653 ACN 122008653ACN-122008653-A

Abstract

The application relates to a unidirectional moisture-conducting mesh fabric without a watermark function and a production method thereof. Comprises a polyester quick-drying surface layer, a polyester hydrophobic inner layer and a connecting layer for connecting the polyester quick-drying surface layer and the polyester hydrophobic inner layer; the polyester hydrophobic inner layer is obtained by hydrophobic treatment of a hydrophobic treatment agent; the water repellent agent comprises: the polyurethane adhesive comprises water-based polyurethane resin, a water-based polyisocyanate crosslinking agent, hydroxyalkyl silicone wax, glycol hydroxyl single-end capped long-chain alkyl silicone oil and a processing aid; the polyester quick-drying surface layer is obtained by hydrophilic treatment of a hydrophilic quick-drying treating agent, wherein the hydrophilic quick-drying treating agent comprises: aqueous hydroxyl polyurethane dispersion, hydroxyl-terminated hyperbranched polyester, N- (beta-aminoethyl) -gamma-aminopropyl triethoxysilane, liquid polycaprolactone polyol, poly (methyl vinyl ether-ALT-maleic anhydride), sulfonated nanocellulose, blocked aqueous polyisocyanate and processing aid. The mesh cloth prepared by the scheme has the advantages of moisture conduction, quick drying, no watermark, durability and the like.

Inventors

  • YANG JILIE
  • LI HUI

Assignees

  • 江苏鼎新印染有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (9)

  1. 1. The unidirectional moisture-conducting waterless printing function mesh fabric is characterized by comprising a polyester quick-drying surface layer, a polyester hydrophobic inner layer and a connecting layer for connecting the polyester quick-drying surface layer and the polyester hydrophobic inner layer, wherein the polyester hydrophobic inner layer is obtained by carrying out hydrophobic treatment on a hydrophobic treatment agent, and the hydrophobic treatment agent comprises water-based polyurethane resin, a water-based polyisocyanate cross-linking agent, hydroxyl alkyl silicone wax, dihydroxyl single-end blocked long-chain alkyl silicone oil and a processing aid; The polyester quick-drying surface layer is obtained by hydrophilic treatment of a hydrophilic quick-drying treatment agent, wherein the hydrophilic quick-drying treatment agent comprises aqueous hydroxyl polyurethane dispersoid, hydroxyl-terminated hyperbranched polyester, N- (beta-aminoethyl) -gamma-aminopropyl triethoxysilane, liquid polycaprolactone polyol, poly (methyl vinyl ether-ALT-maleic anhydride), sulfonated nanocellulose, closed aqueous polyisocyanate and a processing aid.
  2. 2. The unidirectional moisture-conducting waterless printing functional mesh fabric of claim 1, wherein the water repellent agent comprises, by weight, 45-55% of aqueous polyurethane resin, 5-10% of aqueous polyisocyanate crosslinking agent, 10-15% of hydroxyalkyl silicone wax, 3-8% of dialcohol hydroxyl mono-terminated long-chain alkyl silicone oil, 2-5% of processing aid and water to 100%.
  3. 3. The unidirectional moisture-conducting waterless printing functional mesh fabric as claimed in claim 2, wherein the water repellent agent is prepared by the following method: Weighing part of processing aid and part of water according to weight percentage, uniformly mixing, adding hydroxy alkyl silicone wax, and grinding to the particle size of less than 5 mu m to obtain wax powder pre-dispersion liquid; Adding the rest water and the aqueous polyurethane resin into a reaction kettle according to the weight percentage, uniformly stirring, adding the liquid polycaprolactone polyol and the dialcohol hydroxyl single-end capped long-chain alkyl silicone oil, uniformly stirring, slowly adding the wax powder pre-dispersion liquid, stirring while adding the rest processing auxiliary agent, uniformly mixing, adjusting the pH value to 7.5-8, filtering to obtain a pre-mixed dispersion material, and fully and uniformly mixing the pre-mixed dispersion material A and the aqueous polyisocyanate crosslinking agent when the water repellent agent is used to obtain the water repellent agent.
  4. 4. The one-way moisture-conductive waterless printing functional mesh fabric of claim 1, wherein the hydrophilic quick-drying treatment agent comprises, by weight, 30-50% of an aqueous hydroxyl polyurethane dispersion, 1-5% of hydroxyl-terminated hyperbranched polyester, 2-5% of N- (beta-aminoethyl) -gamma-aminopropyl triethoxysilane, 3-7% of liquid polycaprolactone polyol, 1-3% of poly (methyl vinyl ether-ALT-maleic anhydride), 1-2.5% of sulfonated nanocellulose, 5-8% of closed aqueous polyisocyanate, 0.1-0.5% of a processing aid and water to 100%.
  5. 5. The unidirectional moisture-conducting waterless printing functional mesh fabric of claim 4, wherein the hydrophilic quick-drying treatment agent is prepared by the following method: 1) The preparation method comprises the steps of dividing water into three parts, dividing a processing aid into two parts, weighing a first part of water and mixing the first part of processing aid, slowly adding aqueous polyurethane dispersoid under stirring, uniformly stirring, adding hydroxyl-terminated hyperbranched polyester and liquid polycaprolactone polyol, uniformly stirring to obtain a dispersion liquid A, hydrolyzing and activating N- (beta-aminoethyl) -gamma-aminopropyl triethoxysilane with a second part of hydrolysis to obtain a dispersion liquid B, dispersing sulfonated nanocellulose in a third part of water and a second part of processing aid to form a nanosuspension C; 2) Adding the dispersion liquid B into the dispersion liquid A, uniformly mixing, slowly adding poly (methyl vinyl ether-ALT-maleic anhydride), uniformly mixing, adding the nano suspension liquid C, uniformly mixing, regulating the pH value to be less than or equal to 7, and filtering to obtain hydrophilic quick-drying liquid E; 3) And (3) uniformly mixing the hydrophilic quick-drying liquid E with the closed water-based polyisocyanate before hydrophilic treatment to obtain the hydrophilic quick-drying treating agent.
  6. 6. The unidirectional moisture-conducting waterless printing functional mesh fabric as claimed in claim 1, wherein the specification of the polyester quick-drying surface layer is that the fiber is 75D-150D, the mesh size is 0.1-2mm, the structure is a warp knitting hexagonal mesh structure, and the gram weight is 80-120g/m < 2 >.
  7. 7. The unidirectional moisture-conducting waterless printing functional mesh fabric as claimed in claim 1, wherein the specification of the polyester hydrophobic inner layer is that the fiber is 50D-100D, the mesh size is 0.1-2mm, the structure is a weft-knitted diamond mesh structure, and the gram weight is 60-100g/m < 2 >.
  8. 8. The one-way moisture-conductive waterless printing functional mesh fabric of claim 1, wherein the processing aid in the water repellent agent and the hydrophilic quick-drying treatment agent is one or a combination of more of a dispersing agent, a wetting agent, an antifoaming agent and a thickening agent.
  9. 9. A unidirectional moisture-wicking, waterless functional scrim as defined in any of claims 1-8, comprising the steps of: step A, immersing the mesh surface fabric in a hydrophilic quick-drying treatment agent, heating to a temperature of not less than 90 ℃, keeping the temperature for not more than 10min, taking out and drying to obtain a polyester quick-drying surface layer for later use; Immersing the mesh lining fabric in a hydrophobic treatment agent, heating to a temperature of not less than 90 ℃ for a heat preservation time of not more than 10min, taking out and drying to obtain a polyester hydrophobic lining for later use; and B, overlapping the polyester quick-drying surface layer and the polyester hydrophobic inner layer, sewing by using a sewing line to form a connecting layer for connecting the polyester quick-drying surface layer and the hydrophobic fiber layer, and shaping to obtain the unidirectional moisture-guiding non-watermark functional mesh fabric.

Description

Unidirectional moisture-conducting non-watermark functional mesh cloth and production method thereof Technical Field The application relates to the technical field of fabric processing, in particular to one-way moisture-conducting mesh fabric without watermark and a production method thereof. Background The mesh cloth is a fabric with an air hole structure, is divided into single-layer, multi-layer and other types, and is widely applied to the fields of sportswear, outdoor equipment, intimate apparel and the like. In functional fabric research and development, efficient sweat management is a core key point, and the problems of watermark, moisture conductivity attenuation, fabric fuzzing and the like generally exist in the traditional mesh cloth and the existing improved fabric, wherein the watermark is mainly generated because moisture cannot be rapidly and directionally led out of the fabric, part of sweat is remained in the surface fiber gaps of the fabric, obvious traces are formed by human body metabolites or auxiliary agent residues adsorbed on the surface of the fiber after the moisture is evaporated, and the attractiveness and the use experience of the fabric are seriously affected. Although the traditional mesh cloth has basic air permeability, the problem that the inner layer is easy to wet is also existed in the pain point that sweat cannot be led out in time due to the lack of an effective unidirectional conduction mechanism, and is easy to accumulate in the inner layer of the fabric, so that sticky and wet-cold uncomfortable feeling is generated when the fabric is worn next to the skin, the moisture conductivity of various fabrics can be obviously reduced along with the increase of the frequency of changing and washing, and the problems of fuzzing, abrasion and the like of part of fabrics are also caused, so that the use requirement of high-end scenes is difficult to be met. In order to solve the problems, various attempts have been made in the industry, namely, firstly, a hydrophilic layer or a finishing auxiliary agent is adopted to improve the moisture guiding performance, but the method can only realize simple diffusion of moisture in the fabric, can not control the moisture transmission direction, has poor functional durability, and can obviously attenuate the moisture guiding effect after washing for many times, and secondly, the temperature adjustment is realized by increasing the thickness of the fabric or adopting a layer mode, but the cost of air permeability and light weight of the fabric is sacrificed, and the double requirements of heat insulation and air permeability and perspiration are difficult to be considered. In the prior art, the main flow mode for realizing the single moisture guiding function mainly comprises three modes, namely, a surface layer is woven by adopting polyester special-shaped cross section water absorbing fibers or cool silk floss fibers, the inner layer is woven by adopting polypropylene fibers, the mode can obtain a better single moisture guiding effect, but the polyester special-shaped cross section fibers have the defects of insufficient strength and easy pilling after long-term use, the service life of the fabric is influenced, the surface layer is treated by adopting a moisture absorption quick-drying auxiliary agent to enhance the moisture guiding effect, or the inner layer is subjected to hydrophobic treatment by adopting a fluorine-containing treating agent, the hydrophobic difference of the surface layer and the inner layer is enlarged to enhance the water guiding capability, but the fluorine-containing treating agent has potential environmental hazard and does not meet the environment-friendly requirement, and the third mode is to add cotton and other natural water absorbing fibers into the fabric for blending, so that the water absorbing performance is enhanced by introducing the natural water absorbing fibers, and the phenomena of the moisture guiding performance is reduced, the fabric is still generated after long-term use and repeated washing, the fabric is fluffed, and the watermark is marked. The fabric prepared by the prior scheme has the core defects that the problems of watermarking, moisture conductivity attenuation, fabric fuzzing and the like are difficult to solve stably for a long time while the fabric has the performances of better moisture absorption, quick drying and the like, the defects are more obvious along with the increase of the frequency of changing and washing, and the fabric is difficult to adapt to the omnibearing requirements of high-end scenes on comfort, dryness, attractive appearance and durability of the fabric. Therefore, there is a need to develop a unidirectional moisture-conductive non-watermark functional mesh fabric that can solve the above-mentioned drawbacks. Disclosure of Invention In order to further improve the durability of the mesh fabric under the basic performances of unidirectional moisture-conducti