CN115042485A - Luminous breathable fabric and preparation method thereof - Google Patents
Luminous breathable fabric and preparation method thereof Download PDFInfo
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- CN115042485A CN115042485A CN202210724420.9A CN202210724420A CN115042485A CN 115042485 A CN115042485 A CN 115042485A CN 202210724420 A CN202210724420 A CN 202210724420A CN 115042485 A CN115042485 A CN 115042485A
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- B32B27/00—Layered products comprising a layer of synthetic resin
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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- D06M2101/16—Synthetic fibres, other than mineral fibres
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Abstract
The invention discloses a luminous breathable fabric and a preparation method thereof, and relates to the technical field of functional fabrics. The invention is used for solving the technical problems that the regenerated polyester fiber cannot have good moisture absorption, air permeability, bacteriostasis and luminescence properties, and the luminescent component does not have good adhesive force and long-acting luminescent effect. The luminous breathable fabric comprises an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting luminous layer which are sequentially arranged from inside to outside; the preparation method comprises the steps of preparing the elastic antibacterial layer, preparing the breathable moisture-conducting layer, carrying out spunlace compounding, preparing the long-acting luminescent layer, drying and winding. The luminescent rare earth strontium aluminate powder is well wetted and dispersed, and the adhesion and color stability of the long-acting luminescent layer are improved; the temperature is increased during the preparation of the long-acting luminescent layer to volatilize the solvent, so that the fabric components do not contain volatile gas, and the long-acting luminescent layer formed after curing is loose and porous in a mode of brushing the long-acting luminescent layer material after the silk screen is laid, has strong adhesive force and stable color and luster, and exerts the long-acting fluorescence effect.
Description
Technical Field
The invention relates to the technical field of functional fabrics, in particular to a luminous breathable fabric and a preparation method thereof.
Background
The regenerated polyester fiber is formed by utilizing polyester cloth and waste polyester bottle chips through crushing, cleaning, drying, melt extrusion, spinning, winding, bundling, drafting, curling, relaxation heat setting and cutting. Compared with the original polyester fiber, the regenerated polyester fiber has better elasticity, is suitable for producing high-end filling products such as pillows, throw pillows, quilts and the like, but has higher price than the original fiber, and is favored by various merchants. However, the light-emitting breathable fabric prepared by using the regenerated polyester fiber fabric is only reported.
The prior art (CN114351336A) discloses a regenerated polyester super-hydrophilic quick-drying knitted fabric and a preparation method thereof; the regenerated polyester super-hydrophilic quick-drying knitted fabric is formed by weaving 42-52% of regenerated polyester and 48-58% of cross regenerated polyester through double-sided weft yarns and padding through a water absorbing finishing agent according to the weight percentage; the fineness of the regenerated terylene is 0.3-0.6 dpf; the fineness of the cross regenerated terylene is 2.1-2.8 dpf; the regenerated polyester super-hydrophilic quick-drying knitted fabric has good capillary effect between fibers and strong moisture conductivity, so that the fabric has good hydrophilic and quick-drying performances and lasting hydrophilic and quick-drying effects. However, the following technical problems are found: the regenerated polyester fiber cannot have good moisture absorption, ventilation, bacteriostasis and luminescence properties, and the luminescent component does not have good adhesive force and long-acting luminescent effect.
Disclosure of Invention
The invention aims to provide a luminous breathable fabric and a preparation method thereof, and aims to solve the technical problems that regenerated polyester fibers in the prior art cannot have good moisture absorption, breathability, bacteriostasis and luminescence properties, and luminous components do not have good adhesive force and long-acting luminous effect.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a luminous breathable fabric which comprises an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting luminous layer, wherein the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting luminous layer are sequentially arranged from inside to outside; the elastic antibacterial layer is prepared by blending, deoiling, dyeing, antibacterial finishing and drying the following components in parts by weight: 46-65 parts of regenerated polyester fiber, 12-30 parts of polyester terephthalate fiber and 8-17 parts of polyurethane elastic fiber; the breathable moisture-conducting layer is prepared by blending, deoiling, dyeing, moisture absorption and sweat releasing finishing and drying the following components in parts by weight: 55-70 parts of regenerated polyester fiber, 22-36 parts of cotton fiber and 13-27 parts of alginate fiber; the long-acting luminous layer is prepared by stirring, brushing and curing the following components in parts by weight: 86-105 parts of two-liquid type PU acrylic polyol resin, 15-26 parts of rare earth strontium aluminate powder and 3-8 parts of a closed isocyanate crosslinking agent.
The luminous breathable fabric is composed of the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting light-emitting layer from inside to outside, and the regenerated polyester fiber in the elastic antibacterial layer has excellent wrinkle resistance, elasticity, dimensional stability and insulating property, but is poor in hygroscopicity and easy to adsorb static electricity and contaminate dust; the polyester terephthalate fiber has good moisture absorption, wear resistance and crimpability; the polyurethane elastic fiber has good heat resistance, moisture absorption and elasticity, and the three fibers have good moisture absorption, elasticity and heat resistance after being blended, and the durable antibacterial performance is further improved through antibacterial finishing; the yarn forming strength of cotton fibers in the breathable moisture-conducting layer is high, and cellulose macromolecules of the breathable moisture-conducting layer have a plurality of hydrophilic genes and are good in moisture absorption; the alginate fiber is formed by processing marine algae plants through extraction and wet spinning, is a biodegradable regenerated cellulose fiber and has good antibacterial, mildew-proof and flame-retardant properties; after being blended with the regenerated polyester fiber, the blended yarn has good hygroscopicity, antibacterial activity and elasticity; the two-component PU acrylic polyol resin in the long-acting luminescent layer has excellent leveling property, fullness and distinctness of image, the luminescent rare earth strontium aluminate powder is well wetted and dispersed, the isocyanate group released by the closed isocyanate crosslinking agent reacts with the hydroxyl group on the PU acrylic polyol resin for crosslinking, and the adhesion force and color stability of the long-acting luminescent layer are improved.
Further, the equivalent diameter of the regenerated polyester fiber is 20 +/-5 microns, and the length of the regenerated polyester fiber is 38 mm; the length of the polyterephthalate fiber is 38mm, and the fineness is 1.67 dtex; the length of the polyurethane elastic fiber is 40mm, and the fineness of the polyurethane elastic fiber is 1.67 dtex; the length of the cotton fiber is 33mm, and the fineness of the cotton fiber is 1.67 dtex; the alginate fibers had a length of 40mm and a fineness of 1.67 dtex.
Further, two solvents of the two-liquid type PU acrylic polyol resin are ethanol and ethyl acetate, the solid content is 60 +/-5%, and the acid value is 3-6; the solid content of the blocked isocyanate crosslinking agent is 52-55%, and the viscosity is 300-500 cps.
The invention also provides a preparation method of the luminous breathable fabric, which comprises the following steps:
step one, preparing an elastic antibacterial layer: uniformly mixing regenerated polyester fibers, polyester terephthalate fibers and polyurethane elastic fibers, then weaving to obtain inner mixed yarns, carrying out double-sided warp knitting on the inner mixed yarns to obtain inner grey cloth, soaking the inner grey cloth in an oil removing agent at 82-95 ℃, dyeing, carrying out antibacterial finishing, and drying at 125-140 ℃ to obtain an elastic antibacterial layer;
step two, preparing a breathable moisture-conducting layer: uniformly mixing regenerated polyester fibers, cotton fibers and alginate fibers, then weaving to obtain outer mixed yarns, carrying out double-sided warp knitting on the outer mixed yarns to obtain medium gray fabric, soaking the medium gray fabric in an oil removing agent at 82-95 ℃, dyeing, carrying out moisture absorption and sweat releasing finishing, and drying at 120-135 ℃ to obtain a breathable moisture-conducting layer;
step three, spunlace compounding: stacking the elastic antibacterial layer and the breathable moisture-conducting layer together, and carrying out front spunlacing twice and back spunlacing three times by using a spunlacing machine to obtain composite grey cloth;
step four, preparing a long-acting luminous layer: adding a closed isocyanate crosslinking agent into a two-liquid type PU acrylic polyol resin, heating to 35-45 ℃, stirring at the rotating speed of 150-250 rpm for 20-30 min, adding rare earth strontium aluminate powder, heating to 80-85 ℃, and stirring while keeping the temperature until the solvent is completely volatilized to obtain a long-acting luminescent layer material; and laying a silk screen on the outer surface of the breathable moisture-conducting layer on the composite grey cloth, uniformly coating 2-4 times of long-acting luminescent layer materials, feeding the materials into a constant temperature and humidity machine, and curing for 42-46 hours at the temperature of 55-70 ℃ and the relative humidity of 80-90% to form a crude fabric product with a long-acting luminescent layer.
And step five, drying and winding to obtain a finished product of the luminous breathable fabric.
The preparation method of the luminous breathable fabric comprises the steps of preparing an elastic antibacterial layer, preparing a breathable moisture-conducting layer, carrying out spunlace compounding, preparing a long-acting luminous layer and drying and winding, wherein the elastic antibacterial layer is prepared by spinning, double-sided warp knitting, deoiling, dyeing and antibacterial finishing three fiber components; the breathable moisture-conducting layer is prepared by weaving three fiber components, performing double-sided warp knitting, removing oil, dyeing, absorbing moisture, and removing sweat; the spunlace combined with the front side and the back side can not only enable the elastic antibacterial layer and the breathable moisture-conducting layer to be tightly attached, but also enable the appearance of the composite grey cloth to be smooth and fluffy, and exert durable antibacterial property, elasticity and hygroscopicity; the solvent is volatilized by heating during the preparation of the long-acting luminescent layer, so that the components of the fabric do not contain volatile gas, and the long-acting luminescent layer formed after curing is loose and porous due to the mode of brushing the long-acting luminescent layer material after the silk screen is laid, has strong adhesive force and stable color and luster, and can play a long-acting fluorescence effect.
Further, the process of the first step of antibacterial finishing is as follows: uniformly mixing 1.2-2.5 parts by weight of 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex and 5-12 parts by weight of chitosan quaternary ammonium salt to serve as effective components, adding water to obtain an antibacterial finishing agent with the concentration of the effective components being 8 wt%, arranging an inner blank in the antibacterial finishing agent, padding, drying at 85-95 ℃ for 10-20 min, and washing and airing.
In the antibacterial finishing process, the 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex can prevent the toxicity of free radicals, the chitosan quaternary ammonium salt has good antibacterial property, film forming property and moisture absorption and retention property, the effective components are wrapped on the outer surface of the inner grey cloth to form a breathable antibacterial film layer, and the antibacterial property and the antitoxicity of the elastic antibacterial layer can be improved.
Further, the process of moisture absorption and sweat releasing finishing in the step two is as follows: adding terephthalic acid, 1, 4-butanediol and thionyl chloride into a four-neck flask, heating and stirring in an oil bath at 130-145 ℃, keeping the temperature and stirring for 1-2 hours, adding polyethylene glycol and bis (2-hydroxyethyl) dimethylammonium chloride, heating to 220-240 ℃, keeping the temperature under the protection of nitrogen, reacting for 30-50 minutes, cooling to room temperature to obtain effective components, adding water to obtain a moisture absorption and sweat releasing finishing agent with the concentration of the effective components of 10 wt%, and carrying out double-dipping and double-rolling on the medium grey cloth by using the moisture absorption and sweat releasing finishing agent; wherein the molar ratio of terephthalic acid, 1, 4-butanediol and thionyl chloride is 1: 2.1-2.3: 0.1 to 0.3; the dosage of the polyethylene glycol is 1.5 to 2.1 times of the mass of the terephthalic acid, and the dosage of the bis (2-hydroxyethyl) dimethylammonium chloride is 0.5 to 1.2 times of the mass of the terephthalic acid.
The moisture-absorbing and sweat-releasing finishing agent is obtained by esterification reaction of terephthalic acid and 1, 4-butanediol under catalysis of thionyl chloride and polycondensation of the terephthalic acid and 1, 4-butanediol with polyethylene glycol and bis (2-hydroxyethyl) dimethylammonium chloride, the composition has a long carbon chain, ester group, hydroxyl group and quaternary ammonium salt structure, the hydroxyl group and the quaternary ammonium salt endow the medium grey cloth with good moisture-absorbing and sweat-releasing performance, and the long carbon chain and the ester group properly improve the strength of the medium grey cloth; the moisture absorption and sweat releasing finishing improves the moisture absorption and air permeability of the finished fabric product.
The synthesis reaction formula of the moisture-absorbing and sweat-releasing finishing agent is as follows:
further, the type of the oil removing agent in the first step and the second step is JV-201, BEROL226 or JV-706, the temperature is raised to 60-75 ℃ during dyeing and is kept for 25-35 min, and then the temperature is raised to 125-130 ℃ and is kept for 35-45 min.
Further, the spunlace pressure of the spunlace machine in the step three is 55-90 bar, and the production speed is 20-35 m/min.
Further, the mesh size of the screen mesh in the fourth step is 100-200 meshes; and during drying and winding, drying the crude fabric at 120-135 ℃, cutting, and winding at the speed of 35-45 m/min to obtain the finished luminous breathable fabric.
The invention has the following beneficial effects:
1. the luminous breathable fabric is composed of the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting light-emitting layer from inside to outside, the elastic antibacterial layer has good hygroscopicity, elasticity and heat resistance, and the durable antibacterial performance is further improved through antibacterial finishing; the breathable moisture-conducting layer has good hygroscopicity, antibacterial activity and elasticity; the two-component PU acrylic polyol resin in the long-acting luminescent layer has excellent leveling property, fullness and distinctness of image, the luminescent rare earth strontium aluminate powder is well wetted and dispersed, the isocyanate group released by the closed isocyanate crosslinking agent reacts with the hydroxyl group on the PU acrylic polyol resin for crosslinking, and the adhesion force and color stability of the long-acting luminescent layer are improved.
2. According to the preparation method of the luminous breathable fabric, the spunlace combined with the front side and the back side can enable the elastic antibacterial layer and the breathable moisture-conducting layer to be tightly attached, and enables the composite grey cloth to be smooth and fluffy in appearance and to exert durable antibacterial property, elasticity and hygroscopicity; the temperature is increased during the preparation of the long-acting luminescent layer to volatilize the solvent, so that the fabric components do not contain volatile gas, and the long-acting luminescent layer formed after curing is loose and porous in a mode of brushing the long-acting luminescent layer material after the silk screen is laid, has strong adhesive force and stable color and luster, and exerts the long-acting fluorescence effect.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a luminous breathable fabric which comprises an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting light-emitting layer, wherein the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting light-emitting layer are sequentially arranged from inside to outside; the elastic antibacterial layer is prepared by blending, deoiling, dyeing, antibacterial finishing and drying the following components in parts by weight: 56 parts of regenerated polyester fiber, 23 parts of polyester terephthalate fiber and 14 parts of polyurethane elastic fiber; the breathable moisture-conducting layer is prepared by blending, deoiling, dyeing, moisture absorption and sweat releasing finishing and drying the following components in parts by weight: 62 parts of regenerated polyester fiber, 29 parts of cotton fiber and 20 parts of alginate fiber; the long-acting luminous layer is prepared by stirring, brushing and curing the following components in parts by weight: 97 parts of two-liquid type PU acrylic polyol resin, 19 parts of rare earth strontium aluminate powder and 5 parts of a closed isocyanate crosslinking agent.
The equivalent diameter of the regenerated polyester fiber is 22 mu m, and the length of the regenerated polyester fiber is 38 mm; the length of the polyterephthalate fiber is 38mm, and the fineness is 1.67 dtex; the length of the polyurethane elastic fiber is 40mm, and the fineness of the polyurethane elastic fiber is 1.67 dtex; the length of the cotton fiber is 33mm, and the fineness of the cotton fiber is 1.67 dtex; the alginate fibers had a length of 40mm and a fineness of 1.67 dtex. The two solvents of the two-liquid type PU acrylic polyol resin are ethanol and ethyl acetate, the solid content is 63 percent, and the acid value is 5; the blocked isocyanate crosslinker has a solids content of 54% and a viscosity of 460 cps.
The preparation method of the luminous breathable fabric comprises the following steps:
step one, preparing an elastic antibacterial layer: uniformly mixing the regenerated polyester fiber, the polyester terephthalate fiber and the polyurethane elastic fiber, then weaving to obtain an inner mixed yarn, performing double-sided warp knitting on the inner mixed yarn to obtain an inner grey cloth, soaking the inner grey cloth in a degreasing agent JV-201 at 87 ℃, dyeing, performing antibacterial finishing, and drying at 135 ℃ to obtain an elastic antibacterial layer;
the process of antibacterial finishing is as follows: uniformly mixing 1.7 parts of 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex and 9 parts of chitosan quaternary ammonium salt according to parts by weight to serve as effective components, adding water to obtain an antibacterial finishing agent with the concentration of the effective components being 8 wt%, padding the inner blank in the antibacterial finishing agent, drying at 91 ℃ for 18min, and washing and airing; heating to 67 deg.C and maintaining for 32min, heating to 127 deg.C and maintaining for 42 min;
step two, preparing a breathable moisture-conducting layer: the method comprises the following steps of uniformly mixing regenerated polyester fibers, cotton fibers and alginate fibers, then weaving to obtain outer mixed yarns, carrying out double-sided warp knitting on the outer mixed yarns to obtain medium gray fabric, soaking the medium gray fabric in an oil removal agent BEROL226 at 89 ℃, dyeing, carrying out moisture absorption and sweat removal finishing, and drying at 128 ℃ to obtain a breathable moisture-conducting layer; heating to 72 deg.C and maintaining for 32min, heating to 126 deg.C and maintaining for 40 min;
the process of moisture absorption and sweat releasing finishing is as follows: adding 166.1g of terephthalic acid, 193.8g of 1, 4-butanediol and 19g of thionyl chloride into a four-neck flask, heating and stirring in an oil bath at 137 ℃, keeping the temperature and stirring for 1.5 hours, adding 298.9g of polyethylene glycol and 116.3g of bis (2-hydroxyethyl) dimethyl ammonium chloride, heating to 226 ℃, keeping the temperature under the protection of nitrogen for reaction for 45 minutes, cooling to room temperature to obtain effective components, adding water to obtain a moisture absorption finishing agent with the concentration of the effective components of 10 wt%, and carrying out double-dipping and double-rolling on the medium grey cloth by using the moisture absorption and sweat releasing finishing agent;
step three, spunlace compounding: stacking the elastic antibacterial layer and the breathable moisture-conducting layer together, and carrying out front spunlacing twice and back spunlacing three times by using a spunlacing machine to obtain composite grey cloth; the water jet pressure of the water jet machine is 72bar, and the production speed is 28 m/min;
step four, preparing a long-acting luminous layer: adding a closed isocyanate cross-linking agent into a two-liquid type PU acrylic polyol resin, heating to 41 ℃, stirring at the rotation speed of 190rpm for 26min, adding rare earth strontium aluminate powder, heating to 82 ℃, and keeping the temperature and stirring until the solvent is completely volatilized to obtain a long-acting luminescent layer material; laying a silk screen on the composite grey cloth and on the outer surface of the breathable moisture-conducting layer, wherein the mesh size of the silk screen is 150 meshes; the long-acting luminescent layer material is uniformly coated and brushed for 3 times, and then sent into a constant temperature and humidity machine to be cured for 45 hours at the temperature of 63 ℃ and the relative humidity of 86 percent to form a crude fabric product with the long-acting luminescent layer.
Step five, drying and winding: and drying the crude fabric at 128 ℃, cutting, and winding at the speed of 42m/min to obtain a finished luminous breathable fabric.
Example 2
The embodiment provides a luminous breathable fabric which comprises an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting light-emitting layer, wherein the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting light-emitting layer are sequentially arranged from inside to outside; the elastic antibacterial layer is prepared by blending, deoiling, dyeing, antibacterial finishing and drying the following components in parts by weight: 62 parts of regenerated polyester fiber, 25 parts of polyester terephthalate fiber and 12 parts of polyurethane elastic fiber; the breathable moisture-conducting layer is prepared by blending, deoiling, dyeing, moisture absorption and sweat releasing finishing and drying the following components in parts by weight: 59 parts of regenerated polyester fiber, 32 parts of cotton fiber and 24 parts of alginate fiber; the long-acting luminous layer is prepared by stirring, brushing and curing the following components in parts by weight: 97 parts of two-liquid type PU acrylic polyol resin, 20 parts of rare earth strontium aluminate powder and 7 parts of closed isocyanate crosslinking agent.
The equivalent diameter of the regenerated polyester fiber is 16 mu m, and the length of the regenerated polyester fiber is 38 mm; the length of the polyterephthalate fiber is 38mm, and the fineness is 1.67 dtex; the length of the polyurethane elastic fiber is 40mm, and the fineness of the polyurethane elastic fiber is 1.67 dtex; the length of the cotton fiber is 33mm, and the fineness of the cotton fiber is 1.67 dtex; the alginate fibers had a length of 40mm and a fineness of 1.67 dtex. The two solvents of the two-liquid type PU acrylic polyol resin are ethanol and ethyl acetate, the solid content is 65 percent, and the acid value is 4; the blocked isocyanate crosslinker has a solids content of 54% and a viscosity of 480 cps.
The preparation method of the luminous breathable fabric comprises the following steps:
step one, preparing an elastic antibacterial layer: uniformly mixing regenerated polyester fibers, polyester terephthalate fibers and polyurethane elastic fibers, then spinning to obtain inner mixed yarns, carrying out double-sided warp knitting on the inner mixed yarns to obtain inner grey cloth, soaking the inner grey cloth in an oil removal agent JV-706 at 86 ℃, dyeing, carrying out antibacterial finishing, and drying at 136 ℃ to obtain an elastic antibacterial layer; heating to 72 deg.C and maintaining for 33min, heating to 128 deg.C and maintaining for 42 min;
the process of antibacterial finishing is as follows: uniformly mixing 2.2 parts of 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex and 10 parts of chitosan quaternary ammonium salt according to parts by weight to serve as effective components, adding water to obtain an antibacterial finishing agent with the concentration of the effective components being 8 wt%, arranging the inner blank in the antibacterial finishing agent, padding, drying for 20min at 90 ℃, washing and airing;
step two, preparing a breathable moisture-conducting layer: the method comprises the following steps of uniformly mixing regenerated polyester fibers, cotton fibers and alginate fibers, then weaving to obtain outer mixed yarns, carrying out double-sided warp knitting on the outer mixed yarns to obtain medium gray fabric, soaking the medium gray fabric in oil removal agent BEROL226 at 92 ℃, dyeing, carrying out moisture absorption and sweat removal finishing, and drying at 132 ℃ to obtain a breathable moisture-conducting layer; heating to 72 deg.C and maintaining for 32min, and heating to 128 deg.C and maintaining for 43 min;
the process of moisture absorption and sweat releasing finishing is as follows: adding 166.1g of terephthalic acid, 196.5g of 1, 4-butanediol and 23.8g of thionyl chloride into a four-neck flask, heating and stirring in an oil bath at 140 ℃, keeping the temperature and stirring for 1.8 hours, adding 315.6g of polyethylene glycol and 98.5g of bis (2-hydroxyethyl) dimethylammonium chloride, heating to 232 ℃, keeping the temperature under the protection of nitrogen for reaction for 47 minutes, cooling to room temperature to obtain effective components, adding water to obtain a moisture-absorbing and sweat-releasing finishing agent with the concentration of the effective components of 10 wt%, and carrying out double-dipping and double-rolling on the medium grey cloth by the moisture-absorbing and sweat-releasing finishing agent;
step three, spunlace compounding: stacking the elastic antibacterial layer and the breathable moisture-conducting layer together, and carrying out front spunlacing twice and back spunlacing three times by using a spunlacing machine to obtain composite grey cloth; the water jet pressure of the water jet machine is 76bar, and the production speed is 32 m/min;
step four, preparing a long-acting luminous layer: adding a closed isocyanate cross-linking agent into a two-liquid type PU acrylic polyol resin, heating to 42 ℃, stirring at a rotating speed of 220rpm for 28min, adding rare earth strontium aluminate powder, heating to 85 ℃, and stirring under a heat preservation condition until a solvent is completely volatilized to obtain a long-acting luminescent layer material; laying a silk screen on the composite grey cloth and on the outer surface of the breathable moisture-conducting layer, wherein the mesh size of the silk screen is 180 meshes; the long-acting luminescent layer material is uniformly coated and brushed for 4 times, and then sent into a constant temperature and humidity machine, and cured for 45 hours at the temperature of 67 ℃ and the relative humidity of 87 percent to form a crude fabric product with the long-acting luminescent layer.
Step five, drying and winding: and drying the crude fabric at 128 ℃, cutting, and winding at the speed of 42m/min to obtain a finished luminous breathable fabric.
Example 3
The embodiment provides a luminous breathable fabric which comprises an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting light-emitting layer, wherein the elastic antibacterial layer, the breathable moisture-conducting layer and the long-acting light-emitting layer are sequentially arranged from inside to outside; the elastic antibacterial layer is prepared by blending, deoiling, dyeing, antibacterial finishing and drying the following components in parts by weight: 63 parts of regenerated polyester fiber, 27 parts of polyester terephthalate fiber and 14 parts of polyurethane elastic fiber; the breathable moisture-conducting layer is prepared by blending, deoiling, dyeing, moisture absorption and sweat releasing finishing and drying the following components in parts by weight: 63 parts of regenerated polyester fiber, 35 parts of cotton fiber and 24 parts of alginate fiber; the long-acting luminous layer is prepared by stirring, brushing and curing the following components in parts by weight: 103 parts of two-liquid type PU acrylic polyol resin, 23 parts of rare earth strontium aluminate powder and 7.5 parts of a closed isocyanate crosslinking agent.
The equivalent diameter of the regenerated polyester fiber is 25 μm, and the length is 38 mm; the length of the polyterephthalate fiber is 38mm, and the fineness is 1.67 dtex; the length of the polyurethane elastic fiber is 40mm, and the fineness of the polyurethane elastic fiber is 1.67 dtex; the length of the cotton fiber is 33mm, and the fineness of the cotton fiber is 1.67 dtex; the alginate fibers had a length of 40mm and a fineness of 1.67 dtex. The two solvents of the two-liquid type PU acrylic polyol resin are ethanol and ethyl acetate, the solid content is 63 percent, and the acid value is 5.5; the blocked isocyanate crosslinker has a solids content of 55% and a viscosity of 410 cps.
The preparation method of the luminous breathable fabric comprises the following steps:
step one, preparing an elastic antibacterial layer: uniformly mixing the regenerated polyester fibers, the polyester terephthalate fibers and the polyurethane elastic fibers, then weaving to obtain inner mixed yarns, carrying out double-sided warp knitting on the inner mixed yarns to obtain inner grey cloth, soaking the inner grey cloth in a degreaser BEROL226 at 94 ℃, dyeing, carrying out antibacterial finishing, and drying at 136 ℃ to obtain an elastic antibacterial layer; heating to 74 deg.C and maintaining for 32min during dyeing, heating to 130 deg.C and maintaining for 45 min;
the process of antibacterial finishing is as follows: uniformly mixing 2.4 parts of 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex and 9 parts of chitosan quaternary ammonium salt according to parts by weight to serve as effective components, adding water to obtain an antibacterial finishing agent with the concentration of the effective components being 8 wt%, padding the inner blank in the antibacterial finishing agent, drying at 94 ℃ for 19min, and washing and airing;
step two, preparing a breathable moisture-conducting layer: uniformly mixing regenerated polyester fibers, cotton fibers and alginate fibers, then weaving to obtain outer mixed yarns, performing double-sided warp knitting on the outer mixed yarns to obtain medium grey cloth, soaking the medium grey cloth in a degreasing agent JV-706 at 95 ℃, dyeing, performing moisture absorption and sweat releasing finishing, and drying at 133 ℃ to obtain a breathable moisture-conducting layer; heating to 73 deg.C and maintaining for 32min during dyeing, and heating to 130 deg.C and maintaining for 43 min;
the process of moisture absorption and sweat releasing finishing is as follows: adding 166.1g of terephthalic acid, 201.9g of 1, 4-butanediol and 36.5g of thionyl chloride into a four-neck flask, heating and stirring in an oil bath at 145 ℃, keeping the temperature and stirring for 2 hours, adding 340.5g of polyethylene glycol and 182.7g of bis (2-hydroxyethyl) dimethylammonium chloride, heating to 238 ℃, keeping the temperature under the protection of nitrogen for reaction for 48 minutes, cooling to room temperature to obtain active ingredients, adding water to obtain a moisture absorption and sweat releasing finishing agent with the concentration of the active ingredients of 10 wt%, and carrying out double-dipping and double-rolling on the medium grey cloth by the moisture absorption and sweat releasing finishing agent;
step three, spunlace compounding: stacking the elastic antibacterial layer and the breathable moisture-conducting layer together, and carrying out front spunlacing twice and back spunlacing three times by using a spunlacing machine to obtain composite grey cloth; the water jet pressure of the water jet machine is 82bar, and the production speed is 33 m/min;
step four, preparing a long-acting luminous layer: adding a closed isocyanate cross-linking agent into a two-liquid type PU acrylic polyol resin, heating to 45 ℃, stirring at the rotating speed of 180rpm for 30min, adding rare earth strontium aluminate powder, heating to 85 ℃, and stirring under a heat preservation condition until a solvent is completely volatilized to obtain a long-acting luminescent layer material; laying a silk screen on the composite grey cloth and on the outer surface of the breathable moisture-conducting layer, wherein the mesh size of the silk screen is 200 meshes; the long-acting luminescent layer material is uniformly coated and brushed for 4 times, and then sent into a constant temperature and humidity machine to be cured for 46 hours at the temperature of 67 ℃ and the relative humidity of 90 percent to form a crude fabric product with the long-acting luminescent layer.
Step five, drying and winding: and drying the crude fabric at 135 ℃, cutting, and winding at the speed of 42m/min to obtain a finished luminous breathable fabric.
Comparative example 1
This comparative example is different from example 1 in that the elastic antibiotic layer does not add the polyester terephthalate fiber.
Comparative example 2
This comparative example differs from example 1 in that the breathable moisture-wicking layer is free of added alginate fibers.
Comparative example 3
This comparative example is different from example 1 in that the moisture-permeable and moisture-wicking layer was prepared without moisture-absorbing and sweat-releasing finishing.
Comparative example 4
The comparative example is different from example 1 in that the two-pack type PU acrylic polyol resin is not added in the preparation of the long-acting luminescent layer.
Performance testing
The luminescent breathable fabrics prepared in examples 1-3 and comparative examples 1-4 were tested for fluorescence performance, breathability performance, and antibacterial performance. The fluorescence performance test adopts a D65 light source, and the initial brightness and the brightness after 3 hours of the fabric are tested under the conditions of illumination 1650lx and excitation time of 20 min; the air permeability test was carried out using standard JISL 1099: 2006B-1 test for water vapor transmission; and the antibacterial performance test adopts the standard FZ/T73023-2006 to test the antibacterial level after 50 times of water washing. The specific test results are shown in the following table:
as can be seen from the above table, compared with the comparative example, the luminous breathable fabric prepared in the embodiment of the invention has higher initial brightness and brightness after 3 hours, and shows better fluorescence performance; the water vapor transmission capacity is larger than that of the comparative example, which shows that the moisture absorption and the air permeability are realized; the bacteriostasis level reaches 3A level. Comparative example 1 since the elastic antibiotic layer was not added with the polyester terephthalate fiber, the moisture absorption, abrasion resistance and crimping property of the polyester terephthalate fiber could not be exerted, so that the water vapor transmission amount was remarkably reduced; in the comparative example 2, because the alginate fibers are not added in the breathable moisture-conducting layer, the antibacterial, mildew-proof and flame-retardant performances of the alginate fibers can not be exerted, so that the antibacterial level is reduced; comparative example 3 because the moisture absorption and sweat releasing finishing is not carried out when the breathable moisture-conducting layer is prepared, the moisture absorption and the air permeability of the finished fabric product can be obviously reduced; in comparative example 4, since the two-liquid type PU acrylic polyol resin was not added during the preparation of the long-acting luminescent layer, good leveling property could not be exerted, so that the dispersibility and stability of the rare earth strontium aluminate powder were reduced, and the brightness was substantially disappeared after 3 hours.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A luminous breathable fabric is characterized by comprising an elastic antibacterial layer, a breathable moisture-conducting layer and a long-acting light-emitting layer which are sequentially arranged from inside to outside; the elastic antibacterial layer is prepared by blending, deoiling, dyeing, antibacterial finishing and drying the following components in parts by weight: 46-65 parts of regenerated polyester fiber, 12-30 parts of polyester terephthalate fiber and 8-17 parts of polyurethane elastic fiber; the breathable moisture-conducting layer is prepared by blending, deoiling, dyeing, moisture absorption and sweat releasing finishing and drying the following components in parts by weight: 55-70 parts of regenerated polyester fiber, 22-36 parts of cotton fiber and 13-27 parts of alginate fiber; the long-acting luminous layer is prepared by stirring, brushing and curing the following components in parts by weight: 86-105 parts of two-liquid type PU acrylic polyol resin, 15-26 parts of rare earth strontium aluminate powder and 3-8 parts of a closed isocyanate crosslinking agent.
2. The light-emitting breathable fabric according to claim 1, wherein the equivalent diameter of the recycled polyester fiber is 20 ± 5 μm, and the length of the recycled polyester fiber is 38 mm; the length of the polyterephthalate fiber is 38mm, and the fineness is 1.67 dtex; the length of the polyurethane elastic fiber is 40mm, and the fineness of the polyurethane elastic fiber is 1.67 dtex; the length of the cotton fiber is 33mm, and the fineness of the cotton fiber is 1.67 dtex; the alginate fibers had a length of 40mm and a fineness of 1.67 dtex.
3. The light-emitting breathable fabric according to claim 1, wherein the two solvents of the two-liquid type PU acrylic polyol resin are ethanol and ethyl acetate, the solid content is 60 +/-5%, and the acid value is 3-6; the solid content of the blocked isocyanate crosslinking agent is 52-55%, and the viscosity is 300-500 cps.
4. The preparation method of the luminous breathable fabric is characterized by comprising the following steps of:
step one, preparing an elastic antibacterial layer: uniformly mixing regenerated polyester fibers, polyester terephthalate fibers and polyurethane elastic fibers, then weaving to obtain inner mixed yarns, carrying out double-sided warp knitting on the inner mixed yarns to obtain inner grey cloth, soaking the inner grey cloth in an oil removing agent at 82-95 ℃, dyeing, carrying out antibacterial finishing, and drying at 125-140 ℃ to obtain an elastic antibacterial layer;
step two, preparing a breathable moisture-conducting layer: uniformly mixing regenerated polyester fibers, cotton fibers and alginate fibers, then weaving to obtain outer mixed yarns, carrying out double-sided warp knitting on the outer mixed yarns to obtain medium gray fabric, soaking the medium gray fabric in an oil removing agent at 82-95 ℃, dyeing, carrying out moisture absorption and sweat releasing finishing, and drying at 120-135 ℃ to obtain a breathable moisture-conducting layer;
step three, spunlace compounding: stacking the elastic antibacterial layer and the breathable moisture-conducting layer together, and carrying out front spunlacing twice and back spunlacing three times by using a spunlacing machine to obtain composite grey cloth;
step four, preparing a long-acting luminous layer: adding a closed isocyanate crosslinking agent into a two-liquid type PU acrylic polyol resin, heating to 35-45 ℃, stirring at the rotating speed of 150-250 rpm for 20-30 min, adding rare earth strontium aluminate powder, heating to 80-85 ℃, and stirring while keeping the temperature until the solvent is completely volatilized to obtain a long-acting luminescent layer material; laying a silk screen on the outer surface of the breathable moisture-conducting layer on the composite grey cloth, uniformly coating 2-4 times of long-acting luminescent layer materials, sending the materials into a constant temperature and humidity machine, and curing for 42-46 hours at the temperature of 55-70 ℃ and the relative humidity of 80-90% to form a crude fabric product with a long-acting luminescent layer;
and step five, drying and winding to obtain a finished product of the luminous breathable fabric.
5. The method for preparing the luminous breathable fabric according to claim 4, wherein the antibacterial finishing process in the first step is as follows: uniformly mixing 1.2-2.5 parts by weight of 2-hydroxy-1-naphthalene formaldehyde ethylenediamine copper complex and 5-12 parts by weight of chitosan quaternary ammonium salt to serve as effective components, adding water to obtain an antibacterial finishing agent with the concentration of the effective components being 8 wt%, arranging an inner blank in the antibacterial finishing agent, padding, drying at 85-95 ℃ for 10-20 min, and washing and airing.
6. The method for preparing the luminous breathable fabric according to claim 4, wherein the moisture absorption and sweat releasing finishing process in the second step is as follows: adding terephthalic acid, 1, 4-butanediol and thionyl chloride into a four-neck flask, heating and stirring in an oil bath at 130-145 ℃, keeping the temperature and stirring for 1-2 hours, adding polyethylene glycol and bis (2-hydroxyethyl) dimethylammonium chloride, heating to 220-240 ℃, keeping the temperature under the protection of nitrogen, reacting for 30-50 min, cooling to room temperature to obtain an effective component, adding water to obtain a moisture absorption and sweat releasing finishing agent with the concentration of the effective component of 10 wt%, and soaking and rolling the medium grey cloth in the moisture absorption and sweat releasing finishing agent for two times; wherein the molar ratio of terephthalic acid, 1, 4-butanediol and thionyl chloride is 1: 2.1-2.3: 0.1 to 0.3; the dosage of the polyethylene glycol is 1.5 to 2.1 times of the mass of the terephthalic acid, and the dosage of the bis (2-hydroxyethyl) dimethylammonium chloride is 0.5 to 1.2 times of the mass of the terephthalic acid.
7. The method for preparing the light-emitting breathable fabric according to claim 4, wherein the type of the oil removing agent in the first step and the second step is JV-201, BEROL226 or JV-706, the temperature is raised to 60-75 ℃ during dyeing and is kept for 25-35 min, and then the temperature is raised to 125-130 ℃ and is kept for 35-45 min.
8. The preparation method of the light-emitting breathable fabric according to claim 4, wherein the three-step spunlace machine has a spunlace pressure of 55-90 bar and a production speed of 20-35 m/min.
9. The preparation method of the light-emitting breathable fabric according to claim 4, wherein the mesh size of the four-wire mesh is 100-200 meshes; and during drying and winding, drying the crude fabric at 120-135 ℃, cutting, and winding at the speed of 35-45 m/min to obtain the finished luminous breathable fabric.
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