CN113832729B - Washable ultraviolet absorbent and preparation method thereof - Google Patents

Washable ultraviolet absorbent and preparation method thereof Download PDF

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CN113832729B
CN113832729B CN202111079199.8A CN202111079199A CN113832729B CN 113832729 B CN113832729 B CN 113832729B CN 202111079199 A CN202111079199 A CN 202111079199A CN 113832729 B CN113832729 B CN 113832729B
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ultraviolet
parts
fabric
ultraviolet absorber
polyurethane
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CN113832729A (en
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吕东清
吕向成
姚春苗
张孟清
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Suzhou Isomorphic Technology Co ltd
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Suzhou Isomorphic Technology Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • 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
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
    • D06M13/252—Mercaptans, thiophenols, sulfides or polysulfides, e.g. mercapto acetic acid; Sulfonium compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35—Heterocyclic compounds
    • D06M13/352—Heterocyclic compounds having five-membered heterocyclic rings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35—Heterocyclic compounds
    • D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35—Heterocyclic compounds
    • D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
    • D06M13/358—Triazines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a washable ultraviolet absorbent and a preparation method thereof, wherein the preparation method comprises the following steps: (1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution; (2) adding nano materials, and continuously stirring and dissolving; (3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent. The organic ultraviolet absorber is a combination of benzotriazole compounds and triazine compounds, and then cooperates with the nano material, so that the ultraviolet resistance of the organic ultraviolet absorber can be improved under the actions of an antioxidant, a light stabilizer, aqueous polyurethane and a softener, the finally prepared ultraviolet absorber has excellent ultraviolet resistance, water resistance and wear resistance, and meanwhile, the influence on the softness and color of the fabric is small. In addition, the method is simple to operate, low in application technology and requirements, low in treatment cost, and wide in applicability, and can be widely applied to various fabrics such as terylene, cotton fiber, chinlon and the like.

Description

Washable ultraviolet absorbent and preparation method thereof
Technical Field
The invention relates to the field of preparation of ultraviolet absorbers, and D06N3/00, in particular to a washable ultraviolet absorber and a preparation method thereof.
Background
Due to the rapid development of industry, the ozone layer in the atmosphere is destroyed, so that ultraviolet radiation is increased, the probability of skin diseases and skin cancers of people is greatly increased due to excessive ultraviolet radiation, and along with the improvement of consciousness of ultraviolet radiation, the requirements of people on high-performance ultraviolet-proof textiles capable of avoiding excessive ultraviolet radiation are more and more strong.
The ultraviolet absorber is a substance which can absorb ultraviolet rays and release the absorbed energy in the form of less-destructive heat energy, so that the probability of generating active free radicals due to the ultraviolet rays absorbed by photosensitive substances in the material is reduced, and the material can be protected to a certain extent.
At present, common ultraviolet absorbers in China mainly comprise salicylates, benzophenones, benzotriazoles, triazines and the like. Patent CN02807207.3 discloses a fabric rinse composition comprising a triazine uv absorber selected from hydroxyaryl-1, 3, 5-triazines having an effective absorption range of 300-400nm, which is compatible with the fabric softener composition used in the rinse stage, is effective for adsorption onto fabric articles, and has excellent uv resistance. The synthetic reactive ultraviolet absorber UV DTHM disclosed in the patent CN201210560243.1 contains a poly-chloro-cyanide active group, can form a covalent bond with the hydroxyl of cotton fabric, achieves the effect of permanently fixing the ultraviolet absorber, enhances the ultraviolet resistance of the cotton fabric, and simultaneously effectively improves the light fastness of the dyed fabric. The method for improving the light color fastness of the fabric dyed by the reactive dye can be reflected, the ultraviolet absorption performance of the fabric can be effectively improved by using the reactive dye in a combined way, and the fabric has wear resistance and has small influence on the softness of the fabric, so that the method is another important point of research by people.
Disclosure of Invention
In order to solve the problems, the first aspect of the invention provides a washable ultraviolet absorber and a preparation method thereof, comprising the following components in parts by weight:
organic ultraviolet absorber (5-15 parts); antioxidant (2-5 parts); an organic solvent; nanomaterial (1-3 parts); polyurethane (3-15 parts); softening agent (5-8 parts); light stabilizer (2-5 parts);
preferably, the organic ultraviolet absorber is selected from one or more of salicylic acid compounds, benzophenone compounds, benzotriazole compounds and triazine compounds;
preferably, the salicylic acid compound is selected from one or more of phenyl o-hydroxybenzoate, 4-tertiary phenyl salicylate and isopropylidene bisphenol salicylate;
preferably, the benzophenone compound is selected from one or more of 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2, 4-dihydroxybenzophenone sulfonic acid, 2-hydroxy-4-methoxybenzophenone 5 sulfonic acid;
preferably, the benzotriazole compound is selected from one or more of 2-phenylbenzimidazole-5-sulfonic acid, 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorinated benzotriazole (UV-327) and 2- (2-hydroxy-5-methylphenyl) benzotriazole; more preferably 2-phenylbenzimidazole-5-sulfonic acid;
preferably, the triazine compound is selected from one or more of 2- (2, 4-dihydroxyphenyl) -4, 6-bis (2, 4-dimethylphenyl) -1,3, 5-triazine, 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine, UV 400; more preferably one or more of 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine, UV 400;
preferably, the organic ultraviolet absorber is preferably benzotriazole compounds and triazine compounds;
preferably, the weight ratio of the benzotriazole compound to the triazine compound is 1-4:1, a step of;
preferably, the antioxidant is selected from one or more of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] and distearyl thiodipropionate;
preferably, the softener is selected from one or more of polyethylene wax, hydroxyl-terminated polysiloxane emulsion, hydrophilic organic silicon softener, amino polysiloxane emulsion and amino polysiloxane microemulsion;
preferably, the light stabilizer is selected from one or more of succinic acid and (4-hydroxy-2, 6-tetramethyl-1-piperidinol) polymer, bis (2, 6-tetramethyl-4-piperidyl) sebacate;
preferably, the organic solvent is selected from one or more of N, N dimethylformamide, toluene, ethyl acetate, butanone, methyl chloride and ethyl acetate;
preferably, the nano material is selected from one or more of nano titanium dioxide, nano zinc oxide powder, porcelain clay, nano calcium oxide powder, talcum powder and ceramic powder; more preferably nano zinc oxide powder and ceramic powder;
preferably, the polyurethane is one selected from aqueous polyurethane and oily polyurethane.
The second aspect of the invention provides a washable ultraviolet absorber and a preparation method thereof, comprising the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
In a third aspect, the present invention provides a washable ultraviolet resistant fabric, which is obtained by finishing the washable ultraviolet absorber on the surface of the fabric:
the ultraviolet absorber is finished on the surface of the fabric by adopting a specific finishing method.
The finishing mode comprises one of spraying, dipping and spinning;
the coating weight of the ultraviolet absorbent on the surface of the fabric is 10-35g/m 2 。
Compared with the prior art, the invention has the following beneficial effects:
(1) The organic ultraviolet absorber and the nano material are adopted together as the effective components of the ultraviolet absorber, the ultraviolet resistance of the ultraviolet absorber can be improved by adding the antioxidant, the light stabilizer, the aqueous polyurethane and the softener, so that the finally prepared ultraviolet absorber has excellent ultraviolet resistance and washing resistance, meanwhile, the components of the ultraviolet absorber have small influence on the softness and color of the fabric, the fabric finished by the ultraviolet absorber has water resistance and wear resistance, and the softness of the fabric is maintained to a certain extent. In addition, the organic ultraviolet absorber component in the ultraviolet absorber comprises a substance with active groups, so that the combination of pure adsorption and doping with fabric fibers is avoided, and the durability of the ultraviolet resistance of the fabric is improved.
(2) Polyurethane has excellent film forming property, and is used as a finishing agent of fabrics in a large amount, such as a flame-retardant aqueous polyurethane finishing agent with special groups, a shrink-proof agent of wool fabrics, a chemical-resistant finishing agent, a preservative, a mildew-proof agent and the like, and is also used for improving pilling, shrinkage and softness of fabrics. However, in the application system, the aqueous polyurethane is selected, so that the environment-friendly polyurethane fabric has excellent adhesive force to fabrics, can maintain the washability, wear resistance and softness of the fabrics under the action of the antioxidant and the light stabilizer, keeps the original color of the fabrics not yellow, and improves the usability of the ultraviolet absorbent.
(3) The most obvious absorption wavelength range of the benzotriazole ultraviolet absorber is 320-400 nm, the stability is good, the absorption mechanism is that-OH on benzene ring can form hydrogen bond with N yard on triazole ring, the benzotriazole ultraviolet absorber is unstable, and ultraviolet light is converted into heat energy to be released during illumination and then the original state is recovered. The benzotriazole ultraviolet absorber selected in the ultraviolet absorbing system is 2-phenylbenzimidazole-5-sulfonic acid, has low toxicity, can be adsorbed on fibers and has certain washing fastness, and the ultraviolet absorber contains specific sulfonic acid groups, so that the ultraviolet absorber can be tightly combined with chinlon, wool, silk and cotton fabrics, and the selection range of fabric substrate materials is further enlarged.
(4) The effective absorption wavelength range of the triazine compound ultraviolet absorber is 280-400nm. The triazine compound selected in the application is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine and UV 400, and the two are synergistic, so that the binding force between the ultraviolet absorbent and the surface of the fabric is increased, the ultraviolet resistance is obviously improved, and when the weight ratio of the ultraviolet absorbent to the surface of the fabric is 1.5: at 1, the ultraviolet resistance is optimal. wherein-OH in the 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine can be tightly combined with fiber molecules of a base fabric to act as a reactive ultraviolet absorber, and ortho-OH of the triazine in the UV 400 can form a hydrogen bond with N atoms to exert ultraviolet absorption, and can also act as a light stabilizer to act cooperatively with other light stabilizers and oxidizing agents in the components to ensure the stability of an ultraviolet absorber coating on the surface of the fabric and prolong the service life of the fabric.
(5) According to the method, the organic ultraviolet absorbent, the nano material, the antioxidant and other components are dissolved in a specific organic solvent according to the sequence, and the water-resistant ultraviolet absorbent can be obtained by fully stirring. And finally, the ultraviolet absorbent has wide applicability and can be widely used for various fabrics, such as terylene, cotton fiber, chinlon and other materials.
Detailed Description
Example 1:
1. the ultraviolet absorbent resistant to washing comprises the following components in parts by weight:
an organic ultraviolet absorber (7 parts); an antioxidant (3 parts); nanomaterial (3 parts); polyurethane (8 parts); softening agent (5 parts); light stabilizer (2 parts); organic solvent (balance up to 100 parts);
the organic ultraviolet absorber is benzotriazole compounds and triazine compounds;
the benzotriazole compound is 2-phenylbenzimidazole-5-sulfonic acid;
the triazine compound is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine (CAS number: 153519-44-91073062-42-6), UV 400 (CAS number: 153519-44-9), and the weight ratio is 1.3:1, a step of;
the weight ratio of the benzotriazole compounds to the triazine compounds is 2:1, a step of;
the antioxidant is distearyl thiodipropionate;
the softening agent is polyethylene wax (H110P, purchased from Qingdao sea-free chemical industry Co., ltd.);
the light stabilizer is a polymer of succinic acid and (4-hydroxy-2, 6-tetramethyl-1-piperidinol) (CAS number: 70198-29-7);
the organic solvent is N, N dimethylformamide and ethyl acetate, and the mass ratio is 1:1, a step of;
the nano material is nano zinc oxide powder (model: CW-ZnO-001, shanghai super-Wei nano technology Co., ltd.) and ceramic powder (Lingxian Lingxin mineral product processing factory in Lingxiang county) with the mass ratio of 1:1, a step of;
the polyurethane was an aqueous polyurethane (available from Anhua Dahuatai New Material Co., ltd., AH-1701).
2. A preparation method of a washable ultraviolet absorber comprises the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
3. A water-resistant, uv resistant fabric:
and finishing the ultraviolet absorber on the surface of the fabric by adopting a dipping method, and drying at 100 ℃ for 3 hours to obtain the fabric.
The coating weight of the ultraviolet absorbent on the surface of the fabric is 12g/m 2 。
Example 2:
1. the ultraviolet absorbent resistant to washing comprises the following components in parts by weight:
an organic ultraviolet absorber (7 parts); an antioxidant (3 parts); nanomaterial (3 parts); polyurethane (8 parts); softening agent (5 parts); light stabilizer (2 parts); organic solvent (balance up to 100 parts);
the organic ultraviolet absorber is benzotriazole compounds and triazine compounds;
the benzotriazole compound is 2-phenylbenzimidazole-5-sulfonic acid;
the triazine compound is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine and UV 400, and the weight ratio is 1.3:1, a step of;
the weight ratio of the benzotriazole compounds to the triazine compounds is 2:1, a step of;
the antioxidant is distearyl thiodipropionate;
the softening agent is polyethylene wax;
the light stabilizer is a polymer of succinic acid and (4-hydroxy-2, 6-tetramethyl-1-piperidinol);
the organic solvent is methyl chloride and ethyl acetate, and the mass ratio of the organic solvent is 1:1, a step of;
the nano material is nano zinc oxide powder and ceramic powder, and the mass ratio is 1:1, a step of;
the polyurethane is aqueous polyurethane.
2. A preparation method of a washable ultraviolet absorber comprises the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
3. A water-resistant, uv resistant fabric:
and finishing the ultraviolet absorbent on the surface of the fabric by adopting an impregnation method, and drying at 100 ℃ for 3 hours to obtain the fabric.
The coating weight of the ultraviolet absorbent on the surface of the fabric is 12g/m 2 。
Comparative example 1:
1. the ultraviolet absorbent resistant to washing comprises the following components in parts by weight:
an organic ultraviolet absorber (7 parts); an antioxidant (3 parts); nanomaterial (3 parts); polyurethane (8 parts); softening agent (5 parts); light stabilizer (2 parts); organic solvent (balance up to 100 parts);
the organic ultraviolet absorber is benzotriazole compounds and triazine compounds;
the benzotriazole compound is 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chloridized benzotriazole (UV-327) (CAS number: 3864-99-1);
the triazine compound is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine and UV 400, and the weight ratio is 1.3:1, a step of;
the weight ratio of the benzotriazole compounds to the triazine compounds is 2:1, a step of;
the antioxidant is distearyl thiodipropionate;
the softening agent is polyethylene wax;
the light stabilizer is a polymer of succinic acid and (4-hydroxy-2, 6-tetramethyl-1-piperidinol);
the organic solvent is N, N dimethylformamide and ethyl acetate, and the mass ratio is 1:1, a step of;
the nano material is nano zinc oxide powder and ceramic powder, and the mass ratio is 1:1, a step of;
the polyurethane is aqueous polyurethane.
2. A preparation method of a washable ultraviolet absorber comprises the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
3. A water-resistant, uv resistant fabric:
and finishing the ultraviolet absorbent on the surface of the fabric by adopting an impregnation method, and drying at 100 ℃ for 3 hours to obtain the fabric.
The coating weight of the ultraviolet absorbent on the surface of the fabric is 12g/m 2 。
Comparative example 2:
1. the ultraviolet absorbent resistant to washing comprises the following components in parts by weight:
an organic ultraviolet absorber (7 parts); an antioxidant (3 parts); nanomaterial (3 parts); polyurethane (8 parts); softening agent (5 parts); light stabilizer (2 parts); organic solvent (balance up to 100 parts);
the organic ultraviolet absorber is benzotriazole compounds and triazine compounds;
the benzotriazole compound is 2-phenylbenzimidazole-5-sulfonic acid;
the triazine compound is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine;
the weight ratio of the benzotriazole compounds to the triazine compounds is 2:1, a step of;
the antioxidant is distearyl thiodipropionate;
the softening agent is polyethylene wax;
the light stabilizer is a polymer of succinic acid and (4-hydroxy-2, 6-tetramethyl-1-piperidinol);
the organic solvent is N, N dimethylformamide and ethyl acetate, and the mass ratio is 1:1, a step of;
the nano material is nano zinc oxide powder and ceramic powder, and the mass ratio is 1:1, a step of;
the polyurethane is aqueous polyurethane.
2. A preparation method of a washable ultraviolet absorber comprises the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
3. A water-resistant, uv resistant fabric:
and finishing the ultraviolet absorbent on the surface of the fabric by adopting an impregnation method, and drying at 100 ℃ for 3 hours to obtain the fabric.
The coating weight of the ultraviolet absorbent on the surface of the fabric is 12g/m 2 。
Performance test:
1. ultraviolet resistance test: the fabric was tested for uv resistance by evaluating the fabric uv resistance according to national standard GB/T18830-2009 assessment of textile uv resistance test, and the fabric was tested for UPF value using a UPF tester (Cary 50). The fabric obtained in example 1 has a UPF value of 51.2; the fabric obtained in example 2 has a UPF value of 51.0; the fabric obtained in comparative example 1 has a UPF value of 48.6; the fabric obtained in comparative example 2 had a UPF value of 42.5.
2. Water-resistant: the washing resistance of the ultraviolet absorbent of the finished fabric was evaluated according to national standard GB/T18830-2009 evaluation of textile and ultraviolet resistance test. The finished fabric was soaped 10 times and 20 times with 5g/L soap solution for 10 minutes each, and after drying the fabric was tested for UPF value using a UPF tester (Cary 50). The fabric obtained in example 1 had a UPF value of 51.1 after 10 washes and a UPF value of 50.8 after 20 washes; the fabric obtained in example 2 had a UPF value of 50.8 after washing 10 times, a UPF value of 50.7 after washing 20 times, and the fabric obtained in comparative example 1 had a UPF value of 44.2 after washing 10 times, and a UPF value of 37.8 after washing 20 times; the fabric obtained in comparative example 2 had a UPF value of 38.4 after washing 10 times and a UPF value of 32.1 after washing 20 times.

Claims (6)

1. The ultraviolet absorbent resistant to washing is characterized by comprising the following components in parts by weight:
5-15 parts of an organic ultraviolet absorber; 2-5 parts of an antioxidant; 1-3 parts of nano material; 3-15 parts of polyurethane; 5-8 parts of softening agent; 2-5 parts of light stabilizer; an organic solvent;
the organic ultraviolet absorber is benzotriazole compounds and triazine compounds;
the benzotriazole compound is 2-phenylbenzimidazole-5-sulfonic acid;
the triazine compound is 2- (3-bromo-5-chlorophenyl) -4, 6-diphenyl-1, 3, 5-triazine and UV 400.
2. A wash-resistant ultraviolet light absorber according to claim 1, wherein,
the softener is one or more selected from polyethylene wax, hydroxyl-terminated polysiloxane emulsion, hydrophilic organic silicon softener, amino polysiloxane emulsion and amino polysiloxane microemulsion.
3. A wash-resistant ultraviolet light absorber according to claim 1, wherein,
the nanometer material is one or more selected from nanometer titanium dioxide, nanometer zinc oxide powder, porcelain clay, nanometer calcium oxide powder, talcum powder and ceramic powder.
4. A wash-resistant ultraviolet light absorber according to claim 1, wherein,
the polyurethane is one of aqueous polyurethane and oily polyurethane.
5. A process for producing a water-resistant ultraviolet absorber according to any one of claim 1 to 4,
the method comprises the following steps:
(1) Adding an organic ultraviolet absorber, an antioxidant and a light stabilizer into an organic solvent for dissolution;
(2) Adding nano materials, and continuously stirring and dissolving;
(3) Adding polyurethane and softening agent, stirring uniformly to obtain ultraviolet absorbent.
6. A fabric having water-resistant ultraviolet resistance, which is obtained by finishing the surface of the fabric with the water-resistant ultraviolet absorber as set forth in any one of claims 1 to 4,
the finishing mode comprises one of spraying, dipping, spinning and padding;
the coating weight of the ultraviolet absorbent on the surface of the fabric is 10-35g/m 2 。
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CN115045106A (en) * 2022-05-10 2022-09-13 嘉兴元祯化工有限公司 Ultraviolet-proof three-proofing finishing agent for fabric, preparation method and use method
CN114808472B (en) * 2022-05-16 2023-06-13 江南大学 Light-resistant thermochromic fabric and preparation method thereof
CN115748250A (en) * 2022-11-19 2023-03-07 广东湛丰精细化工有限公司 Stably dispersed ultraviolet-resistant absorbent, and preparation method and application thereof
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CN115725213A (en) * 2022-12-02 2023-03-03 佛山市美联涂料有限公司 Ultraviolet absorption finishing paint
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