CN115182173A - Light and thin type ultraviolet-resistant and sun-resistant flame-retardant fabric - Google Patents

Light and thin type ultraviolet-resistant and sun-resistant flame-retardant fabric Download PDF

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Publication number
CN115182173A
CN115182173A CN202210664384.1A CN202210664384A CN115182173A CN 115182173 A CN115182173 A CN 115182173A CN 202210664384 A CN202210664384 A CN 202210664384A CN 115182173 A CN115182173 A CN 115182173A
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resistant
ultraviolet
coating
parts
flame
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CN115182173B (en
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张勇
陈金星
李华桥
丁晓东
方琼
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Shengshan Group Co ltd
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Zhejiang Shengshan Technology Textile Co ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042Acrylic polymers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0068Polymeric granules, particles or powder, e.g. core-shell particles, microcapsules
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00Properties of the materials
    • D06N2209/06Properties of the materials having thermal properties
    • D06N2209/067Flame resistant, fire resistant
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00Properties of the materials
    • D06N2209/16Properties of the materials having other properties
    • D06N2209/1678Resistive to light or to UV

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention relates to the field of fabrics, and provides a light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric aiming at the problem that the light and thin fabric is difficult to realize multiple synergistic functions. The invention utilizes the self-bonding uvioresistant agent capsule to directly form a film on the fiber, and the formed coating is thinner and thinner than the common multi-coating, is not easy to block the holes of the fiber, and realizes the functions while ensuring the lightness and thinness of the fabric.

Description

Light and thin type ultraviolet-resistant and sun-resistant flame-retardant fabric
Technical Field
The invention relates to the field of fabrics, in particular to a light and thin ultraviolet-resistant and sunlight-resistant flame-retardant fabric.
Background
The light and portable light and thin functional textile fabric is widely applied, and for preventing fire, flame-retardant textiles are more and more valued by people; in the outdoor environment, the air conditioner is used for outdoor,the skin clothes worn by people need higher anti-ultraviolet effect. Patent CN100545343 discloses a flame retardant treatment method of light and thin natural fiber material, which comprises the following steps: ultra-micro fiber material fabric-bleaching treatment or dyeing-low temperature soaking puffing flame retardant treatment-baking crosslinking-oxidation, neutralization, washing-finished product inspection; wherein the low-temperature infiltration conditions are as follows: 15-30 ℃ for 10-30 seconds; the temperature of the puffing treatment is 35-60 ℃ and 20-40 minutes; baking crosslinking temperature: 145-185 ℃, time: 2-8 minutes. Then the ultramicro flame-retardant fiber material is treated by a cleaning agent which is nano-grade titanium dioxide (TiO) 2 ) Or/and zinc oxide ZnO, the weight ratio is 1-12.0wt%, dispersant 0.2-1.5wt%; and adding a nano composite material dispersing agent into the aqueous solution for treatment. However, the lighter and thinner the fabric is, the greater the difficulty of implementing certain functions such as ultraviolet resistance, sun resistance, flame retardance and the like, and especially the lighter and thinner fabric with multiple functions in cooperation. Accordingly, an ideal solution is needed.
Disclosure of Invention
In order to overcome the problem that the light and thin fabric is difficult to realize multiple synergistic functions, the invention provides the light and thin ultraviolet-resistant sun-resistant flame-retardant fabric, and a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface aluminum silver paste glue solution coating are sequentially coated on the surface of the light and thin fabric, so that the light and thin fabric is endowed with ultraviolet-resistant and flame-retardant effects.
In order to achieve the purpose, the invention adopts the following technical scheme:
the light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric comprises a light and thin fabric, wherein the surface of the light and thin fabric is coated with a coating, the coating comprises a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface-layer ultraviolet-resistant coating, and the ultraviolet-resistant coating comprises self-adhesive ultraviolet-resistant microcapsules, amino silicon softening agents and silicon resin. The self-bonding uvioresistant agent capsule can be directly formed into a film on the fiber, and the formed coating is lighter and thinner than a common multi-coating, is not easy to block the holes of the fiber, and enables the fabric to be lighter and thinner and to realize functions at the same time.
Preferably, the polyacrylate glue solution of the bottom layer contains polyacrylate, a bridging agent accounting for 1-3wt% of polyacrylate and color paste accounting for 1-3wt% of polyacrylate.
Preferably, the glue solution preparation method of the middle-layer waterborne polyurethane flame-retardant coating comprises the following steps: according to the mass parts, 10-20 parts of melamine, 10-20 parts of polyphosphate and 0.2-0.5 part of dispersant are added into 40-60 parts of organic solvent, and the mixture is uniformly stirred; and sequentially adding 100 parts of polyurethane aqueous dispersion, 3-5 parts of aziridine and 1-2 parts of acid accelerator, and uniformly stirring to obtain a glue solution of the waterborne polyurethane flame-retardant coating. The middle layer adopts melamine and polyphosphate to compound a flame retardant, and the flame retardant effect is good. The flame retardant is dispersed in the waterborne polyurethane, the polyurethane dispersion is subjected to crosslinking polymerization under the action of aziridine and an acid promoter, the flame retardant is enveloped in the polyurethane dispersion to form a stable system, the continuity of a coating adhesive film is good, and the adhesion of the coating adhesive film and polyacrylate on a bottom layer is good.
Preferably, the preparation method of the self-adhesive ultraviolet-resistant microcapsule comprises the following steps: taking aluminum paste with the particle size of 10-20 microns and the mass concentration of 10-12% as an anti-ultraviolet agent, dispersing 10-20 parts of the anti-ultraviolet agent into a mixed solution containing 1-3 parts of azodiisobutyronitrile, 30-60 parts of ethyl acrylate, 15-30 parts of styrene and 0.3-1 part of acrylic acid in parts by mass, and performing ultrasonic treatment in an ice-water bath to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion liquid at 30-50 ℃ for 40-50min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, emulsifying and shearing to obtain micro suspension dispersion liquid; polymerizing the micro-suspension dispersion liquid for 6-8h at 80-90 ℃ under the protection of nitrogen to obtain a polymerization product; washing the resulting viscous uv resistant microcapsules. The anti-ultraviolet agent particles are coated in the binder colloidal particles, so that the dispersibility of the anti-ultraviolet agent in the coating can be improved, the binding power of the anti-ultraviolet agent and the coating is improved through the binder, the precipitation is prevented, and the stability is improved. The acrylic acid monomer of the adhesive has carboxyl, can react with aziridine of the middle layer, improves the adhesive force of the surface layer and the middle layer, and ensures the integral adhesive strength of the coating.
Preferably, the mass ratio of the self-adhesive ultraviolet-resistant microcapsules, the amino silicon softener and the silicon resin in the ultraviolet-resistant coating of the surface layer is 15 (2-3) to (10-15).
Preferably, after the coating is coated on the surface of the light and thin fabric, the drying temperature of the coating is 150-170 ℃, and the coating speed is 70-90m/min.
Preferably, after the bottom coating layer is dried, the dry weight is increased by 5-10g per square meter; after the middle coating layer is dried, the dry weight is increased by 10-15 g/square meter; after the coated surface layer is dried, the dry weight is increased by 5-10 g/square meter.
Therefore, the beneficial effects of the invention are as follows: (1) Sequentially coating a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface-layer aluminum paste glue solution coating on the surface of the light and thin fabric, so as to endow the light and thin fabric with ultraviolet resistance and flame retardance; (2) The self-bonding uvioresistant agent capsule can directly form a film on the fiber, and the formed coating is thinner and thinner than the common coating for multiple times, is not easy to block the holes of the fiber, so that the fabric is thinner and simultaneously realizes the function; (3) The flame retardant is dispersed in the waterborne polyurethane to form a stable system, the continuity of the coating glue film is good, and the adhesion with polyacrylate of the bottom layer is good.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
In the present invention, unless otherwise specified, all the raw materials and equipments used are commercially available or commonly used in the art, and the methods in the examples are conventional in the art unless otherwise specified.
General examples
The light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric comprises a light and thin fabric, wherein the surface of the light and thin fabric is coated with a coating, the coating comprises a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface-layer ultraviolet-resistant coating, and the ultraviolet-resistant coating comprises self-adhesive ultraviolet-resistant microcapsules, amino silicon softening agents and silicon resin.
The polyacrylate glue solution of the bottom layer contains polyacrylate, a bridging agent accounting for 1-3wt% of polyacrylate and color paste accounting for 1-3wt% of polyacrylate.
The glue solution preparation method of the waterborne polyurethane flame-retardant coating of the middle layer comprises the following steps: according to the mass parts, 10-20 parts of melamine, 10-20 parts of polyphosphate and 0.2-0.5 part of dispersant are added into 40-60 parts of organic solvent, and the mixture is uniformly stirred; and then sequentially adding 100 parts of polyurethane aqueous dispersion, 3-5 parts of aziridine and 1-2 parts of acid accelerator, and uniformly stirring to obtain a glue solution of the waterborne polyurethane flame-retardant coating.
The mass ratio of the self-adhesive ultraviolet-resistant microcapsules, the amino silicon softening agent and the silicon resin in the ultraviolet-resistant coating of the surface layer is 15 (2-3) to 10-15. The preparation method of the self-adhesive uvioresistant microcapsule comprises the following steps: taking aluminum paste with the particle size of 10-20 microns and the mass concentration of 10-12% as an anti-ultraviolet agent, dispersing 10-20 parts of the anti-ultraviolet agent into a mixed solution containing 1-3 parts of azodiisobutyronitrile, 30-60 parts of ethyl acrylate, 15-30 parts of styrene and 0.3-1 part of acrylic acid in parts by mass, and performing ultrasonic treatment in an ice-water bath to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion at 30-50 ℃ for 40-50min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, emulsifying and shearing to obtain micro suspension dispersion liquid; polymerizing the micro-suspension dispersion liquid for 6-8h at 80-90 ℃ under the protection of nitrogen to obtain a polymerization product; washing to obtain the uvioresistant microcapsule.
After the coating is coated on the surface of the light and thin fabric, the drying temperature of the coating is 150-170 ℃, and the coating speed is 70-90m/min. After coating the bottom layer and drying, the dry weight gain is 5-10 g/square meter; after the middle coating layer is dried, the dry weight gain is 10-15 g/square meter; after the coated surface layer is dried, the dry weight is increased by 5-10 g/square meter.
Example 1
The light and thin type ultraviolet-resistant and sun-resistant flame-retardant fabric is 190T polyester taffeta, and a bottom layer polyacrylate glue solution coating, a middle layer waterborne polyurethane flame-retardant coating and a surface layer ultraviolet-resistant coating are sequentially coated on the surface of the light and thin type fabric.
The viscosity of the polyacrylate glue solution of the bottom layer is 20s (coating-4 cups), and the glue solution contains polyacrylate, a bridging agent accounting for 2wt% of the polyacrylate and color paste accounting for 2wt% of the polyacrylate.
The glue solution preparation method of the waterborne polyurethane flame-retardant coating of the middle layer comprises the following steps: adding 15 parts of melamine, 15 parts of polyphosphate and 0.3 part of dispersant into 50 parts of toluene by mass, and uniformly stirring; and then sequentially adding 100 parts of polyurethane aqueous dispersion, 4 parts of aziridine and 1 part of acid accelerator, and uniformly stirring to obtain the glue solution of the waterborne polyurethane flame-retardant coating.
The mass ratio of the self-adhesive ultraviolet-resistant microcapsules, the amino silicon softener and the silicon resin in the ultraviolet-resistant coating of the surface layer is 15. The preparation method of the self-adhesive uvioresistant microcapsule comprises the following steps: taking aluminum paste with the average particle size of 15 microns and the mass concentration of 11% as an anti-ultraviolet agent, dispersing 16 parts of the anti-ultraviolet agent into a mixed solution containing 2 parts of azodiisobutyronitrile, 40 parts of ethyl acrylate, 20 parts of styrene and 0.6 part of acrylic acid in parts by mass, and performing ultrasonic treatment on the mixed solution for 1min at 500W in an ice-water bath to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion at 40 ℃ for 45min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, and shearing in an emulsifying machine at 6000rmp for 20min to obtain micro-suspension dispersion; polymerizing the micro-suspension dispersion liquid for 7 hours at 85 ℃ under the protection of nitrogen to obtain a polymerization product; and washing with hydrochloric acid and water in sequence to obtain the anti-ultraviolet microcapsule.
Coating a coating on the surface of 190T polyester taffeta at the speed of 80m/min, firstly coating a bottom layer, drying at 150 ℃ for 100s, and increasing the dry weight by 6 g/square meter; coating the middle layer, drying at 160 ℃ for 80s, and increasing the dry weight by 12 g/square meter; and finally, coating a surface layer, drying for 60s at 170 ℃, and performing dry weight gain of 8 g/square meter.
Example 2
A light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric is 190T polyester taffeta, and a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface-layer ultraviolet-resistant coating are sequentially coated on the surface of the light and thin fabric.
The viscosity of the polyacrylate glue solution of the bottom layer is 20s (coating-4 cups), and the glue solution contains polyacrylate, bridging agent accounting for 3wt% of the polyacrylate and color paste accounting for 1wt% of the polyacrylate.
The glue solution preparation method of the waterborne polyurethane flame-retardant coating of the middle layer comprises the following steps: adding 10 parts of melamine, 10 parts of polyphosphate and 0.2 part of dispersant into 40 parts of toluene by mass, and uniformly stirring; and then sequentially adding 100 parts of polyurethane aqueous dispersion, 3 parts of aziridine and 2 parts of acid accelerator, and uniformly stirring to obtain a glue solution of the waterborne polyurethane flame-retardant coating.
The mass ratio of the self-adhesive ultraviolet-resistant microcapsule, the amino silicon softening agent and the silicone resin in the ultraviolet-resistant coating of the surface layer is 15. The preparation method of the self-adhesive uvioresistant microcapsule comprises the following steps: taking aluminum paste with the average particle size of 20 microns and the mass concentration of 12% as an anti-ultraviolet agent, dispersing 10 parts of the anti-ultraviolet agent into a mixed solution containing 1 part of azodiisobutyronitrile, 30 parts of ethyl acrylate, 30 parts of styrene and 1 part of acrylic acid in parts by mass, and performing ultrasonic treatment at 500W for 1min in an ice-water bath to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion liquid at 50 ℃ for 40min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, and shearing in an emulsifying machine at 6000rmp for 20min to obtain micro-suspension dispersion liquid; polymerizing the micro-suspension dispersion liquid for 6 hours at 90 ℃ under the protection of nitrogen to obtain a polymerization product; washing with hydrochloric acid and water in sequence to obtain the uvioresistant microcapsule.
Coating a coating on the surface of 190T polyester taffeta at the speed of 90m/min, firstly coating a bottom layer, drying for 100s at 150 ℃, and increasing the weight by 5 g/square meter; coating the middle layer, drying at 160 ℃ for 80s, and increasing the dry weight by 11 g/square meter; finally, coating a surface layer, drying for 60s at 170 ℃, and increasing the dry weight by 10 g/square meter.
Example 3
The difference from example 1 is that the aqueous polyurethane of the intermediate layer is replaced by polyacrylate glue solution, i.e. the glue solution of the intermediate layer is prepared by the following method: according to the parts by mass, 10 parts of melamine, 10 parts of polyphosphate and 0.2 part of toluene are added into 40 parts of toluene
Dispersing agent, stirring evenly; and adding 100 parts of polyacrylate, and uniformly stirring to obtain a glue solution of the waterborne polyurethane flame-retardant coating.
Example 4
The difference from example 1 is that acrylic acid is not added when the self-adhesive uvioresistant microcapsules of the surface layer are prepared, namely the self-adhesive uvioresistant microcapsules are prepared by the following steps: taking aluminum paste with the average particle size of 20 microns and the mass concentration of 12% as an anti-ultraviolet agent, dispersing 10 parts of the anti-ultraviolet agent into a mixed solution containing 1 part of azodiisobutyronitrile, 30 parts of ethyl acrylate and 30 parts of styrene by mass parts, and performing ultrasonic treatment at 500W in an ice water bath for 1min to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion liquid at 50 ℃ for 40min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, and shearing in an emulsifying machine at 6000rmp for 20min to obtain micro-suspension dispersion; polymerizing the micro-suspension dispersion liquid for 6 hours at 90 ℃ under the protection of nitrogen to obtain a polymerization product; and washing with hydrochloric acid and water in sequence to obtain the anti-ultraviolet microcapsule.
Comparative example 1
The difference from example 1 is that the primer layer is not coated.
Comparative example 2
The difference from example 1 is that no intermediate layer is applied.
Comparative example 3
The difference from example 1 is that the surface layer is not coated.
Comparative example 4
The difference from example 1 is that the surface layer does not use self-adhesive uvioresistant microcapsules, namely the mass ratio of the uvioresistant agent to the amino silicon softening agent to the silicone resin in the uvioresistant coating of the surface layer is 15: aluminum paste with an average particle size of 15 μm and a mass concentration of 11%.
Coating a coating on the surface of 190T polyester taffeta at the speed of 80m/min, firstly coating a bottom layer, drying at 150 ℃ for 100s, and increasing the dry weight by 6 g/square meter; coating the middle layer, drying at 160 ℃ for 80s, and increasing the dry weight by 12 g/square meter; and finally, coating a surface layer, drying for 60s at 170 ℃, and increasing the weight by 11 g/square meter in a dry manner.
Performance testing
The fabrics of each example and comparative example were subjected to performance testing. The test items and criteria were as follows:
1. mass per unit area (natural): GB/T4669-2008, quality determination of textile-woven fabric-unit length and unit area;
2. combustion performance: GB/T8624-2012 'Classification of Combustion Properties of building materials and products';
3. breaking strength: GB/T3923.2-2013 part 2 of tensile Properties of textile fabrics: measurement of fracture strength (sample grasping method);
4. ultraviolet resistance: GB/T18830-2009 evaluation on ultraviolet resistance of textiles;
5. color fastness to light: GB/T8427-2019 color fastness to artificial light in textile color fastness test: xenon arc (Xeon arc);
the results are shown in the following table.
Figure BDA0003691057740000061
As can be seen from the table, the light and thin type ultraviolet-resistant and sun-resistant flame-retardant fabric disclosed by the embodiment of the invention meets the following performances and meets the standard.
1. Mass per unit area (natural): less than or equal to 70g/m 2
2. Combustion performance: the limit oxygen index (%) is more than or equal to 28, and no melting and dripping exist;
3. breaking strength: the warp direction is more than or equal to 300N, and the weft direction is more than or equal to 250N;
4. ultraviolet resistance: UPF is more than or equal to 400, UVA is less than or equal to 2 percent;
5. color fastness to light: grade 4 or more.
Of these, examples 1 and 2 performed best under the preferred conditions. Compared with example 1: example 3 the aqueous polyurethane of the middle layer is replaced by polyacrylate glue solution, which affects the flame retardant property and the interlayer bonding strength, because the polyurethane dispersion can be cross-linked and polymerized under the action of aziridine and acid accelerant, the flame retardant is enveloped in the polyurethane dispersion to form a stable system, the continuity of the coating glue film is good, and the aziridine and the acrylic acid of the surface layer can be cross-linked; example 4 the self-adhesive uv resistant microcapsules of the surface layer were prepared without adding acrylic acid, the bonding with the intermediate layer was reduced and the light fastness was slightly decreased.
Compared with example 1: comparative example 1 is not coated with a bottom layer, and the weather resistance and the mechanical strength of the original aqueous polyurethane adhesive film of the middle layer are not as good as those of acrylic ester, so that the polyacrylate of the bottom layer is lacked, and the influence on the light-resistant color fastness in the performances is the greatest; the comparative example 2, which is not coated with the intermediate layer, and the comparative example 3, which is not coated with the surface layer, naturally lose the corresponding flame retardant and ultraviolet resistant effects; the uvioresistant agent of the comparative example 4 is not coated, on one hand, the self-bonding uvioresistant agent capsule can directly form a film on the fiber, and the formed coating is thinner and lighter than the common multiple coating, so the gram weight of the comparative example 4 is increased; on the other hand, the anti-ultraviolet agent is coated in the binder colloidal particle, so that not only can the dispersibility of the anti-ultraviolet agent in the coating be improved, but also the binding force between the anti-ultraviolet agent and the coating is improved through the binder, the precipitation is prevented, and the stability is improved, so that the anti-ultraviolet performance and the light fastness of the comparative example 4 are reduced.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims (7)

1. The light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric is characterized in that a coating is coated on the surface of a light and thin fabric, the coating comprises a bottom polyacrylate glue solution coating, a middle-layer waterborne polyurethane flame-retardant coating and a surface-layer ultraviolet-resistant coating, and the ultraviolet-resistant coating comprises self-adhesive ultraviolet-resistant microcapsules, amino silicon softening agents and silicon resin.
2. The light-weight, thin, ultraviolet-resistant, sun-resistant and flame-retardant fabric according to claim 1, wherein the polyacrylate glue solution of the bottom layer contains polyacrylate, a bridging agent accounting for 1-3wt% of polyacrylate, and color paste accounting for 1-3wt% of polyacrylate.
3. The light-weight, thin, ultraviolet-resistant, sunlight-resistant and flame-retardant fabric according to claim 1, wherein the glue solution preparation method of the middle-layer waterborne polyurethane flame-retardant coating comprises the following steps: according to the mass parts, 10-20 parts of melamine, 10-20 parts of polyphosphate and 0.2-0.5 part of dispersant are added into 40-60 parts of organic solvent, and the mixture is uniformly stirred; and sequentially adding 100 parts of polyurethane aqueous dispersion, 3-5 parts of aziridine and 1-2 parts of acid accelerator, and uniformly stirring to obtain a glue solution of the waterborne polyurethane flame-retardant coating.
4. The light and thin ultraviolet-resistant and sun-resistant flame-retardant fabric according to claim 1, wherein the preparation method of the self-adhesive ultraviolet-resistant microcapsule comprises the following steps: taking aluminum paste with the particle size of 10-20 microns and the mass concentration of 10-12% as an anti-ultraviolet agent, dispersing 10-20 parts of the anti-ultraviolet agent into a mixed solution containing 1-3 parts of azodiisobutyronitrile, 30-60 parts of ethyl acrylate, 15-30 parts of styrene and 0.3-1 part of acrylic acid in parts by mass, and performing ultrasonic treatment in an ice-water bath to obtain a monomer dispersion liquid of the anti-ultraviolet agent; prepolymerizing the monomer dispersion liquid at 30-50 ℃ for 40-50min to obtain a prepolymerization product; adding tricalcium phosphate and sodium dodecyl benzene sulfonate water solution, emulsifying and shearing to obtain micro suspension dispersion liquid; polymerizing the micro-suspension dispersion liquid for 6-8h at 80-90 ℃ under the protection of nitrogen to obtain a polymerization product; washing the obtained viscous uvioresistant microcapsules.
5. The light, thin, ultraviolet-resistant, sun-resistant and flame-retardant fabric according to claim 1 or 4, wherein the mass ratio of the self-adhesive ultraviolet-resistant microcapsules, the amino silicon softener and the silicone resin in the ultraviolet-resistant coating of the surface layer is 15 (2-3) to (10-15).
6. The light, thin, ultraviolet-resistant, sunlight-resistant and flame-retardant fabric according to claim 1, wherein after the coating is coated on the surface of the light and thin fabric, the drying temperature of the coating is 150-170 ℃, and the coating speed is 70-90m/min.
7. The light-weight, thin, ultraviolet-resistant, sunlight-resistant and flame-retardant fabric according to claim 1 or 6, wherein after the coated bottom layer is dried, the dry weight is increased by 5-10g per square meter; after the middle coating layer is dried, the dry weight gain is 10-15 g/square meter; after the coated surface layer is dried, the dry weight is increased by 5-10 g/square meter.
CN202210664384.1A 2022-06-13 2022-06-13 Light-thin type ultraviolet-resistant sunlight-resistant flame-retardant fabric Active CN115182173B (en)

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