CN116427173A - Washable flame-retardant anti-dripping polyester cotton 65/35 fabric and preparation method thereof - Google Patents
Washable flame-retardant anti-dripping polyester cotton 65/35 fabric and preparation method thereof Download PDFInfo
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- CN116427173A CN116427173A CN202310347994.3A CN202310347994A CN116427173A CN 116427173 A CN116427173 A CN 116427173A CN 202310347994 A CN202310347994 A CN 202310347994A CN 116427173 A CN116427173 A CN 116427173A
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- 239000004744 fabric Substances 0.000 title claims abstract description 360
- 229920000742 Cotton Polymers 0.000 title claims abstract description 331
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 327
- 239000003063 flame retardant Substances 0.000 title claims abstract description 325
- 229920000728 polyester Polymers 0.000 title claims abstract description 153
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 104
- 239000000178 monomer Substances 0.000 claims abstract description 55
- 238000011282 treatment Methods 0.000 claims abstract description 52
- 238000001035 drying Methods 0.000 claims abstract description 45
- 238000010894 electron beam technology Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005406 washing Methods 0.000 claims abstract description 27
- -1 pentaerythritol acrylic ester Chemical class 0.000 claims abstract description 22
- DWSWCPPGLRSPIT-UHFFFAOYSA-N benzo[c][2,1]benzoxaphosphinin-6-ium 6-oxide Chemical group C1=CC=C2[P+](=O)OC3=CC=CC=C3C2=C1 DWSWCPPGLRSPIT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000002791 soaking Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 63
- 229910052698 phosphorus Inorganic materials 0.000 claims description 44
- 239000011574 phosphorus Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 43
- 239000000126 substance Substances 0.000 claims description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 36
- 238000002156 mixing Methods 0.000 claims description 34
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 30
- 229920001634 Copolyester Polymers 0.000 claims description 28
- 238000007598 dipping method Methods 0.000 claims description 27
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 26
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- ARXJGSRGQADJSQ-UHFFFAOYSA-N propylene glycol methyl ether Substances COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 14
- 230000004584 weight gain Effects 0.000 claims description 12
- 235000019786 weight gain Nutrition 0.000 claims description 12
- 230000006378 damage Effects 0.000 claims description 11
- 238000002074 melt spinning Methods 0.000 claims description 10
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 9
- 239000004902 Softening Agent Substances 0.000 claims description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 5
- 150000003017 phosphorus Chemical class 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000004753 textile Substances 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 2
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- 230000002265 prevention Effects 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 8
- 230000001678 irradiating effect Effects 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 229920004933 Terylene® Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 208000012886 Vertigo Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- BSBSDQUZDZXGFN-UHFFFAOYSA-N cythioate Chemical compound COP(=S)(OC)OC1=CC=C(S(N)(=O)=O)C=C1 BSBSDQUZDZXGFN-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012757 flame retardant agent Substances 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
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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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
-
- 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/20—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin
- D06M14/22—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of natural origin of vegetal origin, e.g. cellulose or derivatives thereof
-
- 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/26—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin
- D06M14/30—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/32—Polyesters
-
- 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
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a washable flame-retardant anti-dripping polyester cotton 65/35 fabric and a preparation method thereof, and is characterized in that: soaking the surface of the polyester-cotton blended fabric with glue solution containing flame-retardant anti-dripping monomer, drying, performing grafting curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation, performing soaping, rinsing and drying, and finally performing softening treatment on the modified fabric through an air softening machine to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric; the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester. The washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared by the invention has the characteristics of flame retardance, anti-dripping property, water washing resistance, good hand feeling and the like, has simple production process and high efficiency, and has wide application prospect in the fields of industry, traffic building decoration materials, household textiles, individual protective clothing and the like needing fire prevention, such as electric power, petroleum and the like, and has strong practicability.
Description
Technical Field
The invention belongs to the technical field of flame retardance of polyester fiber and cotton fiber blended 65/35 fabrics, and relates to a washable flame retardant anti-dripping polyester cotton 65/35 fabric and a preparation method thereof. The washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared by the invention is suitable for the fireproof field of various industries.
Background
The polyester-cotton blended 65/35 fabric (namely the blended fabric with the mass percentage of 65% of polyester fibers and 35% of cotton fibers) is deeply favored by consumers due to the characteristics of hygroscopicity, air permeability, high strength of the polyester fabrics and the like of the pure cotton fabrics, has the characteristics of good elasticity and wear resistance of dry and wet fabrics, stable size and small shrinkage, has the characteristics of stiffness, difficult buckling, easy washing, smoothness, quick drying and wearing resistance, and plays an important role in the textile fabric market in China. However, the polyester fiber and the cotton fiber forming the polyester-cotton blended 65/35 fabric have high combustibility, the limiting oxygen index of cotton is only 18%, the polyester is slightly higher than 20%, but the burning of the polyester is accompanied by serious molten drop phenomenon, so that secondary injury can be caused, flame spread can be caused by the burning molten drop, and secondary combustion is brought, and therefore, the flame retardant treatment of the cotton fabric and the polyester fabric is necessary. However, the polyester-cotton blended fabric obtained by blending the flame-retardant cotton and the flame-retardant polyester is not flame-retardant, and the main reason is that a wick effect is generated during combustion, namely, the fused polyester is continuously combusted due to the support of non-fused cotton, so that the flame retardance of the polyester/cotton blended fabric is far more difficult than that of pure cotton fabrics and pure polyester fabrics. At present, as polyester lacks reactive active groups, the flame retardance in the polyester-cotton blended fabric is mainly realized by carrying out flame retardance treatment on cotton parts in the fabric, and the CVC flame retardant fabric which can meet the actual flame retardance application requirements basically, namely the polyester-cotton fabric with the cotton content of more than 60 percent, has better mechanical properties than the CVC fabric, namely the polyester-cotton 65/35 fabric with higher polyester component. However, flame retardant and anti-dripping polyester cotton 65/35 fabrics are not yet available in the market, and huge market demands exist.
In the prior art, the method for preparing the flame-retardant anti-dripping fiber or fabric and the flame-retardant anti-dripping fiber or fabric disclosed in China patent (CN 101353863A) firstly utilize electron beam irradiation to graft a monomer onto a polyester matrix, then use a rolling baking process to finish a cross-linking agent on the fabric and crosslink the cross-linking agent, wherein at least one of the monomer and the cross-linking agent contains flame-retardant elements, so that the fabric with flame retardance anti-dripping performance is obtained, but the mechanical property of the fabric is reduced by irradiation and rolling baking treatment, and the fabric after two treatments has poor mechanical property and hand feeling; CN103173997a discloses a "flame retardant and anti-melting fiber or fabric and its preparation method", but the large dose irradiation is twice, resulting in poor mechanical properties and hand feeling of the fiber or fabric; in the preparation method of the anti-dripping polyester fiber disclosed in CN102174718A, a cross-linking agent is added in a blending manner in a slice spinning stage, and the anti-dripping polyester fiber is obtained through electron beam irradiation cross-linking after melt spinning, but the prepared fiber has poor flame retardant property; the preparation method of the durable halogen-free flame-retardant anti-dripping polyester fiber disclosed in CN102534855A is characterized in that a common polyester chip is mainly replaced by a phosphorus-containing flame-retardant polyester chip on the basis of CN102174718A, then a cross-linking agent is replaced, and the durable flame-retardant anti-dripping polyester fiber is obtained through irradiation treatment, but dripping appears after 50 times of water washing, which indicates that the washing fastness of the fiber still cannot meet the requirement.
The Sichuan Dong Material technology group Co., ltd. Discloses a 'melt-drop-free flame-retardant polyester fiber/fabric and a preparation method thereof in CN 107177979A', and a 'washable flame-retardant polyester cotton blended fabric and a preparation method thereof in CN 107201654A'. For pure terylene, CN107177979A is prepared into flame-retardant terylene fiber or fabric by using flame-retardant copolymerized polyester chips with the phosphorus content of 6500-15000 ppm, then the surface of the fiber or fabric is immersed with glue solution containing flame retardant and cross-linking agent, the fiber or fabric containing the glue solution is subjected to grafting reaction by electron beam irradiation to form a surface layer material, and the surface layer material is subjected to soaping, rinsing and drying to obtain the flame-retardant anti-dripping terylene fiber/fabric; CN107201654A is firstly prepared into flame-retardant polyester staple fibers by using flame-retardant copolymerized polyester chips with the phosphorus content of 6500-15000 ppm, then the flame-retardant polyester staple fibers are blended with pure cotton to prepare a polyester-cotton blended fabric, the polyester-cotton blended fabric is subjected to flame-retardant finishing by a conventional CP method or a common Lu Ben method, and then the flame-retardant and anti-dripping finishing is the same as that of CN 107177979A. CN107177979a and CN107201654a solve the flame retardant and anti-dripping performance of terylene and terylene blended fabrics, but the following problems and disadvantages still exist: the irradiation grafting is preceded by dipping glue solution containing a flame retardant and a cross-linking agent, the addition of the cross-linking agent can influence the flame retardant performance, the dispersion uniformity degree of the cross-linking agent and the copolymerization performance of the flame retardant can influence the uniformity of a three-dimensional network structure grafted on the surface of the fabric, and in addition, when part of the cross-linking agent such as gamma- (methacryloyloxy) propyl trimethoxysilane is used, catalysts such as dibutyl tin dilaurate, stannous octoate and the like are also required to be added, so that the process is complex. In addition, the fabric is hardened after the irradiation grafting finishing, and the wearing comfort is affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a washable flame-retardant anti-dripping polyester-cotton 65/35 fabric with the characteristics of flame retardance, washability, good hand feeling and the like and a preparation method thereof. According to the invention, the washable flame-retardant polyester-cotton blended fabric is obtained by blending the flame-retardant polyester fiber and the cotton fiber, performing flame-retardant finishing by a conventional CP (control program) or ordinary Lu Ben method, grafting a flame-retardant anti-dripping functional monomer on the fabric by an electron beam, and improving the hard hand feeling of the fabric by soft after-finishing, so that the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or the washable flame-retardant anti-dripping polyester-cotton blended fabric and the washable flame-retardant anti-dripping polyester-cotton 65/35 blended fabric) with the characteristics of flame retardance, washable washing resistance, good hand feeling and the like, and the production process is simple and the efficiency is high, and the preparation method thereof is provided.
The invention comprises the following steps: a washable, flame retardant and anti-dripping polyester cotton 65/35 fabric comprising: the polyester-cotton blended fabric containing the flame-retardant polyester fibers and the flame-retardant cotton fibers is characterized in that: soaking the surface of the polyester-cotton blended fabric with glue solution containing flame-retardant anti-dripping monomer, drying, performing grafting curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation to form a three-dimensional network structure, performing soaping, rinsing and drying, and performing softening treatment on the modified fabric through an air softening machine to obtain a washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or a washable flame-retardant anti-dripping polyester-cotton blended fabric), wherein the weight gain rate is 25-30%; the polyester-cotton blended fabric can still meet the first part of GB 8965.1-2009 after being washed 50 times according to the GB/T17596-1998 standard: the flame retardant clothing test standard has various indexes and has the performance of washability, flame retardance and molten drop resistance;
The polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester; the monomer is synthesized autonomously and the same applies later.
In the content of the invention: the flame-retardant anti-dripping monomer is one or a mixture of more than two of the following chemical structural formulas (I), (II) and (III):
in the content of the invention: the glue solution containing the flame-retardant anti-dripping monomer is prepared by mixing the flame-retardant anti-dripping monomer and a solvent, wherein the mass percentage concentration of the glue solution is 20% -50%;
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl etherMixingAnd (3) a compound.
In the content of the invention: the preparation method of the polyester-cotton blended fabric can be as follows: drying a flame-retardant copolymerized polyester chip with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of conventional polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing flame-retardant finishing on the blended fabric through conventional cotton to obtain the polyester-cotton blended fabric; the phosphorus-containing flame-retardant copolyester chip can be a series of phosphorus-containing flame-retardant copolyester chips produced by Sichuan Dong Material technology group Co., ltd.
Another aspect of the invention is: the preparation method of the washable flame-retardant anti-dripping polyester cotton 65/35 fabric is characterized by comprising the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer (or flame-retardant anti-dripping functional monomer) into a glue solution with the mass percentage concentration of 20-50% by using a solvent at normal temperature, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank (namely dipping), performing one-dipping one-time padding (namely one-time dipping one-time padding) of the padding machine under the pressure of 0.01-0.4 MPa of a roller, and drying in an oven with the temperature of 80-150 ℃ to obtain the impregnated polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester;
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. Anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5-10 MeV and the dosage of 30-200 KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed through irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 60-80 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
The softener is any softener sold in the domestic and foreign chemical markets, for example: guangdong Rong Xin new material RX-62, dongguan pacific chemical TYW-129, weifang Ruiyang chemical RG-1021/20 and the like.
In another aspect of the invention: the flame-retardant anti-dripping monomer in the step a is a mixture of one or more than two of the following chemical structural formulas (I), (II) and (III):
In the content of the present invention and another content: the preparation method of the polyester-cotton blended fabric in the step a can be as follows: drying a flame-retardant copolymerized polyester chip with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of conventional polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing flame-retardant finishing on the blended fabric through conventional cotton to obtain the polyester-cotton blended fabric;
the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm is a series of flame-retardant copolyester chip products containing phosphorus and produced by Sichuan Dong Material New Material Co-Ltd, and can be specifically flame-retardant copolyester chips with the phosphorus content of 6500ppm, 7000ppm, 7500ppm, 8500ppm, 9000ppm, 10000ppm, 11500ppm or 15000 ppm.
In another aspect of the invention: the mass percentage of the weight gain of the washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared in the step c is 25% -30% compared with the polyester cotton blended fabric (namely, the weight gain rate is 25% -30%); namely: the washing-resistant flame-retardant anti-dripping polyester-cotton 65/35 fabric prepared by soaping, rinsing with water and drying is weighed, and compared with the polyester-cotton blended fabric which is not subjected to gum dipping, electron beam irradiation grafting and post treatment, the weight gain mass percentage is 25-30%.
In another aspect of the invention: after washing the washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared in the step c for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 mm, and no dripping exists.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
(1) According to the invention, a novel flame-retardant anti-dripping (functional) monomer, namely DOPO group substituted pentaerythritol acrylic ester, is used for replacing a composite system containing a flame retardant, a cross-linking agent and a catalyst, so that the polymerization uniformity is improved, the influence of the cross-linking agent and the catalyst on the flame-retardant anti-dripping performance is avoided, and the production process is simplified;
(2) According to the invention, the flame-retardant polyester fiber is prepared by melt spinning with the flame-retardant copolyester with the phosphorus content of 6500-15000 ppm as the raw material, and compared with the physical blending polyester fiber product added with the flame retardant, the flame-retardant polyester fiber product prepared by the invention has uniform and stable flame-retardant quality, realizes permanent flame retardance and has excellent comprehensive performance;
(3) According to the invention, the electron beam irradiation grafting reaction is adopted, so that the method is not influenced by temperature and substance morphology, an initiator is not needed, and the electron beam irradiation grafts the organic compound onto the substrate through chemical bonds, so that the method has the characteristics of energy conservation, environmental protection, simplicity in processing and the like; the electron beam irradiation grafting reaction is carried out under the protection of normal temperature and nitrogen, so that the radiation dose is low, the advantages of the polyester-cotton blended fabric are maintained, the flame retardant function of the fabric is endowed, and the washable flame retardance of the polyester-cotton blended fabric is realized;
(4) According to the invention, the polyester-cotton blended fabric is soaked in the softener and then treated by the air softener, so that the hard hand feeling of the fabric is improved;
(5) The washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or washable flame-retardant anti-dripping polyester-cotton blended fabric or washable flame-retardant anti-dripping polyester-cotton 65/35 blended fabric) prepared by the method is characterized in that the flame-retardant anti-dripping functional substances on the fiber surface of the fabric are introduced through chemical bonds, so that the prepared flame-retardant polyester-cotton blended fabric is washable, and the flame retardant performance of the fabric is stable after being washed for 50 times;
(6) The washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared by the method has the characteristics of flame retardance, anti-dripping, excellent flame retardance, washability, good hand feeling and the like, is simple in production process and high in efficiency, is suitable for flame-retardant tools in the fields of chemical industry, mine, electric power, petroleum and the like, has wide application prospects in decorative materials for traffic buildings, household textiles, individual protective clothing and military industry, and is high in practicability.
Detailed Description
The following examples are intended to further illustrate the present invention but are not to be construed as limiting its scope, as many insubstantial modifications and adaptations of the invention that are within the scope of the invention as described above would be within the skill of the art.
The methods described in the examples below, unless otherwise specified, are all conventional; such materials, unless otherwise specified, are commercially available.
Preparation of part 1 polyester-cotton blended fabric
Taking a polyester chip with 7000ppm phosphorus as an example, the polyester chip is prepared from a polyester-cotton blend fabric:
the flame-retardant copolyester chips are put into vacuum drying and dried for 12 to 14 hours at 120 ℃ to lead the water content to be lower than 0.02 weight percent (mass percent), and the melt spinning is carried out according to the melt spinning method of the conventional polyester fibers to obtain the flame-retardant polyester fibers; the cotton fiber is subjected to flame retardant treatment by any prior art method, for example, the flame retardant finishing can be carried out according to a conventional general Lu Ben (Proban) method, namely, the flame retardant finishing liquid formed by low-molecular precondensate of tetra-hydroxymethyl phosphorus chloride and amide is padded at room temperature, the flame retardant finishing liquid is prebaked on a heat setting machine (100-120 ℃), ammonia fumigation, oxidation washing, drying (130-140 ℃) → precondensation is carried out; then blending the flame-retardant polyester fiber and the flame-retardant cotton fiber, and preparing the polyester-cotton blended fabric F7000 (65/35) according to the mass ratio of the polyester to the cotton blended components; (65/35) shows that the polyester-cotton blended fabric is formed by 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
As in the above method, the flame-retardant copolyester chips having a phosphorus content of 15000ppm are called as a raw material of a polyester-cotton blended fabric F15000 (65/35), the flame-retardant copolyester chips having a phosphorus content of 11500ppm are called as a raw material of a polyester-cotton blended fabric F11500 (65/35), the flame-retardant copolyester chips having a phosphorus content of 10000ppm are called as a raw material of a polyester-cotton blended fabric F10000 (65/35), the flame-retardant copolyester chips having a phosphorus content of 7500ppm are called as a raw material of a polyester-cotton blended fabric F7500 (65/35), the flame-retardant copolyester chips having a phosphorus content of 6500ppm are called as a raw material of a polyester-cotton blended fabric F6500 (65/35), and the flame-retardant copolyester chips having a phosphorus content of 8500ppm are called as a raw material of a polyester-cotton blended fabric F8500 (65/35).
Part 2 washable flame retardant anti-dripping polyester cotton 65/35 fabric (or washable flame retardant anti-dripping polyester cotton blend fabric),
Washable flame retardant anti-dripping polyester-cotton 65/35 blend fabric)
Example 1:
preparing phosphorus-containing DOPO group substituted pentaerythritol acrylic ester (with a chemical structural formula (I) of 500 g and a chemical structural formula (II) of 450 g) into a glue solution with a mass percentage concentration of 30% at normal temperature, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric F8500 (65/35) through the glue solution in the glue solution tank, padding the polyester-cotton blended fabric through one padding machine under the roller pressure of 0.15MPa, and drying the padding machine in a blast oven at the temperature of 100 ℃ to obtain the impregnated polyester-cotton blended fabric;
Under the protection of normal temperature and nitrogen, irradiating the gum-dipped polyester-cotton blended fabric in 1MeV electron beam equipment with the irradiation dose of 150KGy, washing the fabric cleanly by soaping and water, treating the fabric by an air softening machine, drying and weighing the fabric, increasing the mass percentage of the fabric by 24%, obtaining a washable flame-retardant anti-dripping polyester-cotton blended fabric 1, sampling, performing flame-retardant performance test evaluation after 50 times of washing, and obtaining the results shown in Table 1, wherein the washing method is performed according to GB/T17596-1998 commercial washing procedure before textile fabric combustion test; the flame retardant property test is carried out according to GB/T5455-2014 vertical Combustion method for determining the combustion property of textiles.
Example 2:
preparing phosphorus-containing DOPO group substituted pentaerythritol acrylic ester (with a chemical structural formula (I) of 500 g and a chemical structural formula (III) of 450 g) into glue solution with a mass percentage concentration of 40%, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric F6500 (65/35) through the glue solution in the glue solution tank, performing one-padding through the padding machine under the roller pressure of 0.3MPa, and then drying in a blast oven at 120 ℃ to obtain the padded polyester-cotton blended fabric;
under the protection of normal temperature and nitrogen, the gum-dipped cotton-polyester blended fabric is subjected to electron beam irradiation with the irradiation dose of 100KGy, then is subjected to soaping, rinsing with clear water, and is dried by an air softening machine treatment and then is weighed, and the mass percentage of the fabric is increased by 30 percent, so that the washable flame-retardant anti-dripping cotton-polyester blended fabric 2 is obtained; otherwise, the same as in example 1 is omitted.
Example 3:
preparing phosphorus-containing DOPO group substituted pentaerythritol acrylic ester (with a chemical structural formula (II) of 500 g and a chemical structural formula (III) of 450 g) into a glue solution with a mass percentage concentration of 33%, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric F7500 (65/35) through the glue solution in the glue solution tank, padding the polyester-cotton blended fabric through one padding of the padding machine under the roller pressure of 0.02MPa, and drying the padding machine in an oven at 120 ℃ to obtain the impregnated polyester-cotton blended fabric;
under the protection of normal temperature and nitrogen, irradiating the gum-dipped polyester-cotton blended fabric with a dose of 60KGy in a 10MeV electron beam device, and weighing the fabric after the fabric is treated and dried by a soaping machine, a water rinsing machine and an air softening machine, wherein the fabric is increased by 28 mass percent to obtain a washable flame-retardant anti-dripping polyester-cotton blended fabric 3; otherwise, the same as in example 1 is omitted.
Example 4:
preparing 300 g of phosphorus DOPO group substituted pentaerythritol acrylic ester (with a chemical structural formula (I) of 300 g, 200 g of a chemical structural formula (II) of 450 g) into a glue solution with a mass percent concentration of 50%, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing a polyester cotton blended fabric F7000 (65/35) through the glue solution in the glue solution tank, performing one-padding through the padding machine under the pressure of 0.3MPa of a roller, and then drying at 60 ℃ to obtain the impregnated polyester cotton blended fabric;
Under the protection of normal temperature and nitrogen, irradiating the gum-dipped polyester-cotton blended fabric by using 3MeV electron beam equipment with the dosage of 30KGy, and weighing the fabric after soaping, water rinsing and drying by using an air softening machine, wherein the fabric is increased by 15 mass percent to obtain the washable flame-retardant anti-dripping polyester-cotton blended fabric 4; otherwise, the same as in example 1 is omitted.
Example 5:
preparing phosphorus-containing DOPO group substituted pentaerythritol acrylic ester (900 g of chemical structural formula (I)) into glue solution with the mass percentage concentration of 35% by using N, N-dimethylformamide, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric F10000 (65/35) through the glue solution in the glue solution tank, performing one padding through the padding machine under the roller pressure of 0.1MPa, and then drying in a blast oven at 140 ℃ to obtain the padded polyester-cotton blended fabric;
under the protection of normal temperature and nitrogen, irradiating the gum-dipped cotton-polyester blended fabric with an irradiation dose of 85KGy in a 0.8MeV electron beam device, washing with soap and clear water, drying with an air softening machine, weighing, and increasing the fabric by 22 mass percent to obtain a washable flame-retardant anti-dripping cotton-polyester blended fabric 5; otherwise, the same as in example 1 is omitted.
Example 6:
using solvent ethyl acetate to replace pentaerythritol acrylic ester (900 g of chemical structural formula (II) is prepared into glue solution with the mass percentage concentration of 18%, mixing uniformly, placing the glue solution in a glue solution tank of a padding machine, passing polyester-cotton blended fabric F11500 (65/35) through the glue solution in the glue solution tank, performing one padding of the padding machine under the roll pressure of 0.15MPa, and then drying at 75 ℃ to obtain the padded polyester-cotton blended fabric;
under the protection of normal temperature and nitrogen, irradiating the gum-dipped cotton-polyester blended fabric with an irradiation dose of 90KGy in a 0.5MeV electron beam device, washing with soap and clear water, drying with an air softening machine, weighing, and increasing the fabric by 5% by mass to obtain a washable flame-retardant anti-dripping cotton-polyester blended fabric 6; otherwise, the same as in example 1 is omitted.
Example 7:
900 g of phosphorus-containing DOPO group substituted pentaerythritol acrylic ester chemical structural formula (III) is prepared into glue solution with the mass percentage concentration of 45%, the glue solution is uniformly mixed and placed in a glue solution tank of a padding machine, the polyester-cotton blended fabric F15000 (65/35) passes through the glue solution in the glue solution tank, the padding machine is subjected to one padding under the roll pressure of 0.3MPa, and then the padding polyester-cotton blended fabric is obtained by drying in a blast oven at 130 ℃;
Under the protection of normal temperature and nitrogen, the gum-dipped cotton-polyester blended fabric is subjected to electron beam irradiation with the irradiation dose of 100KGy, then is subjected to soaping, rinsing with clear water, and is dried by an air softening machine treatment and then is weighed, and the mass percentage of the fabric is increased by 25%, so that the washable flame-retardant anti-dripping cotton-polyester blended fabric 7 is obtained; otherwise, the same as in example 1 is omitted.
Example 8:
preparing a glue solution with the mass percent concentration of 28% by using solvent dioxane to replace pentaerythritol acrylic ester (300 g of chemical structural formula (I), 300 g of chemical structural formula (II) and 300 g of chemical structural formula (III)) with phosphorus DOPO groups, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric F11000 (65/35) through the glue solution in the glue solution tank, performing one-padding of the padding machine under the roller pressure of 0.25MPa, and then drying in a blast oven at 90 ℃ to obtain the padded polyester-cotton blended fabric;
under the protection of normal temperature and nitrogen, irradiating the gum-dipped cotton-polyester blended fabric with the dosage of 200KGy in 0.5MeV electron beam equipment, then washing with soap, rinsing with clear water, drying by an air softening machine, weighing, and increasing the fabric by 14 mass percent to obtain the washable flame-retardant anti-dripping cotton-polyester blended fabric 8; otherwise, the same as in example 1 is omitted.
The flame retardant property test conditions of the washable flame retardant anti-dripping polyester-cotton blended fabrics prepared in examples 1 to 8 after 50 times of washing are shown in table 1.
Table 1: flame retardant property of washable flame retardant anti-dripping polyester-cotton blended fabric after 50 times of water washing
Note that: the table was tested according to GB/T5455-2014 after 50 washes according to GB/T17596-1998 standard.
Example 9:
a washable, flame retardant and anti-dripping polyester cotton 65/35 fabric comprising: the method comprises the steps of (1) impregnating a glue solution containing a flame-retardant anti-dripping monomer on the surface of a polyester-cotton blended fabric and drying the glue solution, carrying out graft curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation to form a three-dimensional network structure, carrying out soaping, water rinsing and drying, and finally carrying out softening treatment on the modified fabric through an air softening machine to obtain a washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or a washable flame-retardant anti-dripping polyester-cotton blended fabric), wherein the weight gain rate is controlled to be between 25% and 30% (namely, the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric is obtained after soaping, water rinsing and drying is weighed, compared with the weight gain mass percentage of the polyester-cotton blended fabric before gum dipping, electron beam irradiation grafting and post treatment, which is the same as the washable flame-retardant anti-dripping-cotton blended fabric after the step); the polyester-cotton blended fabric can still meet the first part of GB 8965.1-2009 after being washed 50 times according to the GB/T17596-1998 standard: the flame retardant clothing test standard has various indexes and has the performance of washability, flame retardance and molten drop resistance;
The glue solution containing the flame-retardant anti-dripping monomer is glue solution with the mass percent concentration of 20 percent prepared by mixing the flame-retardant anti-dripping monomer and a solvent.
Example 10:
a washable, flame retardant and anti-dripping polyester cotton 65/35 fabric comprising: the method comprises the steps of (1) impregnating a glue solution containing a flame-retardant anti-dripping monomer on the surface of a polyester-cotton blended fabric containing flame-retardant polyester fibers and flame-retardant cotton fibers, drying, performing graft curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation to form a three-dimensional network structure, performing soaping, water rinsing and drying, and finally performing softening treatment on the modified fabric through an air softening machine to obtain a washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or a washable flame-retardant anti-dripping polyester-cotton blended fabric), wherein the weight gain rate is controlled to be 25% -30%; the polyester-cotton blended fabric can still meet the first part of GB 8965.1-2009 after being washed 50 times according to the GB/T17596-1998 standard: the flame retardant clothing test standard has various indexes and has the performance of washability, flame retardance and molten drop resistance;
the glue solution containing the flame-retardant anti-dripping monomer is glue solution with the mass percent concentration of 50 percent prepared by mixing the flame-retardant anti-dripping monomer and a solvent.
Example 11:
a washable, flame retardant and anti-dripping polyester cotton 65/35 fabric comprising: the method comprises the steps of (1) impregnating a glue solution containing a flame-retardant anti-dripping monomer on the surface of a polyester-cotton blended fabric containing flame-retardant polyester fibers and flame-retardant cotton fibers, drying, performing graft curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation to form a three-dimensional network structure, performing soaping, water rinsing and drying, and finally performing softening treatment on the modified fabric through an air softening machine to obtain a washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or a washable flame-retardant anti-dripping polyester-cotton blended fabric), wherein the weight gain rate is controlled to be 25% -30%; the polyester-cotton blended fabric can still meet the first part of GB 8965.1-2009 after being washed 50 times according to the GB/T17596-1998 standard: the flame retardant clothing test standard has various indexes and has the performance of washability, flame retardance and molten drop resistance;
the glue solution containing the flame-retardant anti-dripping monomer is prepared by mixing the flame-retardant anti-dripping monomer and a solvent, wherein the mass percentage concentration of the glue solution is 35%.
In examples 9 to 11 described above:
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
The flame-retardant cotton fiber is obtained by performing flame-retardant treatment on cotton fiber (by a method in the prior art), and can be prepared by performing flame-retardant finishing according to a conventional CP or common Lu Ben method;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester and is one or more than two of the following chemical structural formulas (I), (II) and (III):
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl etherMixingA compound;
the preparation method of the polyester-cotton blended fabric can be as follows: drying the flame-retardant copolymerized polyester chips with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of (conventional) polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing conventional cotton flame-retardant finishing on the blended fabric to obtain the polyester-cotton blended fabric; is the prior art;
the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm is a flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm sold in the existing domestic and foreign chemical markets, or can be a series of phosphorus-containing flame-retardant copolyester chips produced by Sichuan Dong Material technology group Co., ltd; the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm can be specifically flame-retardant copolyester chips with the phosphorus content of 6500ppm, 7000ppm, 7500ppm, 8500ppm, 9000ppm, 10000ppm, 11500ppm or 15000 ppm.
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 12:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into a glue solution with the mass percentage concentration of 30% by using a solvent acetone at normal temperature, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank (namely, dipping), performing one-dipping one-rolling (namely, one-dipping one-rolling) of the padding machine under the roll pressure of 0.02MPa, and then drying in an oven with the temperature of 100 ℃ to obtain the dipped polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is a mixture of chemical structural formulas (I) and (II);
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. Anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5MeV and the dosage of 30KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 60 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 13:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
Preparing a flame-retardant anti-dripping monomer into glue solution with the mass percentage concentration of 40% by using toluene solvent at normal temperature, uniformly mixing, placing into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank (namely, dipping), performing one-dipping one-rolling (namely, one-dipping one-rolling) of the padding machine under the roll pressure of 0.03MPa, and then drying in an oven with the temperature of 100 ℃ to obtain the dipped polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is a mixture of chemical structural formulas (I), (II) and (III);
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5MeV and the dosage of 30KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. Post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 80 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 14:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into glue solution with the mass percentage concentration of 20% -50% by using ethyl acetate as a solvent at normal temperature, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank (namely, dipping), performing one-dipping one-rolling (namely, one-dipping one-rolling) of the padding machine under the roll pressure of 0.04MPa, and then drying in an oven with the temperature of 110 ℃ to obtain the impregnated polyester-cotton blended fabric;
The flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is a mixture of chemical structural formulas (I), (II) and (III);
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5MeV and the dosage of 30KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 75 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 15:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into a glue solution with the mass percentage concentration of 35% by using a solvent at normal temperature, uniformly mixing, placing the glue solution into a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank (namely, dipping), performing one-dipping one-rolling (namely, one-dipping one-rolling) of the padding machine under the roll pressure of 0.02MPa, and then drying in an oven with the temperature of 90 ℃ to obtain the dipped polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is a mixture of chemical structural formulas (I), (II) and (III);
the solvent is a mixture of N, N-dimethylformamide and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
The flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5MeV and the dosage of 30KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 78 ℃, so that the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or the washable flame-retardant anti-dripping polyester-cotton blended fabric) is prepared.
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 16:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into a glue solution with the mass percentage concentration of 20% by using a solvent at normal temperature, uniformly mixing, placing the glue solution in a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank, performing one-padding-one-padding of the padding machine under the roll pressure of 0.01MPa, and then drying in an oven with the temperature of 80 ℃ to obtain the impregnated polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is one or a mixture of more than two of chemical structural formulas (I), (II) and (III);
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. Anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5MeV and the dosage of 30KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 60 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 17:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
Preparing a flame-retardant anti-dripping monomer into a glue solution with the mass percentage concentration of 50% by using a solvent at normal temperature, uniformly mixing, placing the glue solution in a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank, performing one-padding-one-padding of the padding machine under the roll pressure of 0.4MPa, and then drying in an oven with the temperature of 150 ℃ to obtain the impregnated polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is one or a mixture of more than two of chemical structural formulas (I), (II) and (III);
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 10MeV and the dosage of 200KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. Post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 80 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
Example 18:
a preparation method of washable flame-retardant anti-dripping polyester cotton 65/35 fabric comprises the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into a glue solution with the mass percentage concentration of 35% by using a solvent at normal temperature, uniformly mixing, placing the glue solution in a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank, performing one-padding-one-padding of the padding machine under the roll pressure of 0.2MPa, and then drying in an oven with the temperature of 115 ℃ to obtain the impregnated polyester-cotton blended fabric;
The flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester, and specifically is one or a mixture of more than two of chemical structural formulas (I), (II) and (III);
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant cotton fiber is prepared by performing flame-retardant finishing on cotton fiber according to the conventional CP or common Lu Ben method;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with energy of 5MeV and dosage of 115KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed by irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted cotton-polyester blended fabric is soaped at the temperature of 70 ℃, rinsed (cleaned) with water and dried to obtain the treated cotton-polyester blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener, wherein the treatment temperature of the air softener is 70 ℃, so as to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric (or referred to as washable flame-retardant anti-dripping polyester-cotton blended fabric).
After the prepared washable flame-retardant anti-dripping polyester cotton 65/35 fabric is washed for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 millimeters, and no molten drops exist.
In the above examples 12 to 18:
the softener is any softener sold in the domestic and foreign chemical markets;
the flame-retardant anti-dripping monomer in the step a has the following 3 chemical structural formulas (I), (II) and (III):
the preparation method of the polyester-cotton blended fabric in the step a can be as follows: drying a flame-retardant copolymerized polyester chip with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of conventional polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing flame-retardant finishing on the blended fabric through conventional cotton to obtain the polyester-cotton blended fabric;
the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm is a flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm sold in the existing domestic and foreign chemical markets, or can be a series of phosphorus-containing flame-retardant copolyester chips produced by Sichuan Dong Material technology group Co., ltd; the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm can be specifically flame-retardant copolyester chips with the phosphorus content of 6500ppm, 7000ppm, 7500ppm, 8500ppm, 9000ppm, 10000ppm, 11500ppm or 15000 ppm.
And c, the mass percentage of the weight gain of the washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared in the step c is 25-30 percent (namely, the weight gain rate is 25-30 percent) compared with the polyester cotton blended fabric.
In the above embodiment: the percentages used are not particularly indicated, and are all percentages by mass (weight) or percentages known to those skilled in the art; the proportions used are not particularly specified, but are mass (weight) proportions; the parts by weight may all be g or kg.
In the above embodiment: the process parameters (temperature, time, concentration, energy, dose, pressure, etc.) and the amount of each component in each step are within the range, and any point is applicable.
The technical contents of the invention and the technical contents not specifically described in the above embodiments are the same as the prior art, and the raw materials are all commercial products.
The present invention is not limited to the above-described embodiments, and the present invention can be implemented with the above-described advantageous effects.
Claims (10)
1. A washable, flame retardant and anti-dripping polyester cotton 65/35 fabric comprising: the polyester-cotton blended fabric containing the flame-retardant polyester fibers and the flame-retardant cotton fibers is characterized in that: soaking the surface of the polyester-cotton blended fabric with glue solution containing flame-retardant anti-dripping monomer, drying, performing grafting curing reaction on the polyester-cotton blended fabric with the flame-retardant anti-dripping monomer attached to the outer surface through electron beam irradiation to form a three-dimensional network structure, performing soaping, rinsing with water, drying, and performing softening treatment on the modified fabric through an air softening machine to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric with the weight gain rate of 25-30%; the polyester-cotton blended fabric can still meet the first part of GB 8965.1-2009 after being washed 50 times according to the GB/T17596-1998 standard: the flame retardant clothing test standard has various indexes and has the performance of washability, flame retardance and molten drop resistance;
The polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester.
2. The washable, flame retardant and anti-dripping polyester-cotton 65/35 fabric of claim 1, wherein the washable, flame retardant and anti-dripping polyester-cotton 65/35 fabric is characterized in that: the flame-retardant anti-dripping monomer is one or a mixture of more than two of the following chemical structural formulas (I), (II) and (III):
3. the washable, flame retardant and anti-dripping polyester-cotton 65/35 fabric of claim 1 or 2, characterized in that: the glue solution containing the flame-retardant anti-dripping monomer is prepared by mixing the flame-retardant anti-dripping monomer and a solvent, wherein the mass percentage concentration of the glue solution is 20% -50%;
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl etherMixingAnd (3) a compound.
4. The washable, flame retardant and anti-dripping polyester-cotton 65/35 fabric of claim 1 or 2, characterized in that: the preparation method of the polyester-cotton blended fabric can be as follows: after drying the flame-retardant copolymerized polyester chips with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of conventional polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing flame-retardant finishing on the blended fabric through conventional cotton to obtain the polyester-cotton blended fabric.
5. The preparation method of the washable flame-retardant anti-dripping polyester cotton 65/35 fabric is characterized by comprising the following steps:
a. preparing a gum dipping polyester cotton blended fabric:
preparing a flame-retardant anti-dripping monomer into glue solution with the mass percentage concentration of 20-50% by using a solvent at normal temperature, uniformly mixing, placing the glue solution in a glue solution tank of a padding machine, passing the polyester-cotton blended fabric through the glue solution in the glue solution tank, performing one-padding by the padding machine under the pressure of 0.01-0.4 MPa of a roller, and then drying in an oven with the temperature of 80-150 ℃ to obtain the impregnated polyester-cotton blended fabric;
the flame-retardant anti-dripping monomer is DOPO group substituted pentaerythritol acrylic ester;
the solvent is one or more of acetone, ethanol, toluene, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dioxane and propylene glycol methyl ether;
the polyester-cotton blended fabric comprises 65% of flame-retardant polyester fibers and 35% of flame-retardant cotton fibers in percentage by mass;
b. anti-dripping treatment of polyester-cotton blended fabric:
electron beam irradiation grafting: under the protection of normal temperature and nitrogen, the obtained dipped polyester-cotton blended fabric is subjected to an electron beam irradiation device with the energy of 0.5-10 MeV and the dosage of 30-200 KGy, and the grafting reaction on the surface of the dipped polyester-cotton blended fabric is completed through irradiation, so that the irradiation grafted polyester-cotton blended fabric is obtained;
c. Post-treatment:
(a) And (3) water washing treatment:
the irradiation grafted polyester-cotton blended fabric is soaped at the temperature of 70 ℃, rinsed with water and dried to obtain the treated polyester-cotton blended fabric;
(b) Softening:
and (3) soaking the treated polyester-cotton blended fabric with a softening agent, and then treating the soaked polyester-cotton blended fabric with an air softener at a temperature of between 60 and 80 ℃ to obtain the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric.
6. The method for preparing the washable flame retardant anti-dripping polyester cotton 65/35 fabric according to claim 5, which is characterized in that: the flame-retardant anti-dripping monomer in the step a is a mixture of one or more than two of the following chemical structural formulas (I), (II) and (III):
(Ⅲ)
7. the method for preparing the washable flame retardant anti-dripping polyester-cotton 65/35 fabric according to claim 5 or 6, which is characterized in that: the preparation method of the polyester-cotton blended fabric in the step a can be as follows: after drying the flame-retardant copolymerized polyester chips with the phosphorus content of 6500-15000 ppm, preparing flame-retardant polyester fibers according to a melt spinning method of conventional polyester fibers, blending the flame-retardant polyester fibers with flame-retardant cotton fibers to obtain a blended fabric, and performing flame-retardant finishing on the blended fabric through conventional cotton to obtain the polyester-cotton blended fabric.
8. The method for preparing the washable flame retardant anti-dripping polyester-cotton 65/35 fabric according to claim 5 or 6, which is characterized in that: and c, the weight gain of the washable flame-retardant anti-dripping polyester-cotton 65/35 fabric prepared in the step c is 25-30% of the weight of the polyester-cotton blended fabric.
9. The method for preparing the washable flame retardant anti-dripping polyester-cotton 65/35 fabric according to claim 5 or 6, which is characterized in that: after washing the washable flame-retardant anti-dripping polyester cotton 65/35 fabric prepared in the step c for 50 times according to the GB/T17596-1998 standard, the continuous burning time of the flame retardant property is 0 seconds, the smoldering time is 0 seconds according to the GB/T5455-2014 standard test, the damage length is less than 100 mm, and no dripping exists.
10. The method for preparing the washable flame retardant anti-dripping polyester-cotton 65/35 fabric according to claim 7, which is characterized in that: the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm is a flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm sold in the existing domestic and foreign chemical markets, or is a series of phosphorus-containing flame-retardant copolyester chip products produced by Sichuan Dong Material technology group Co., ltd; the flame-retardant copolyester chip with the phosphorus content of 6500-15000 ppm is specifically a flame-retardant copolyester chip with the phosphorus content of 6500ppm, 7000ppm, 7500ppm, 8500ppm, 9000ppm, 10000ppm, 11500ppm or 15000 ppm.
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| CN116623429A (en) * | 2023-07-25 | 2023-08-22 | 江苏恒力化纤股份有限公司 | Preparation method of durable flame-retardant polyester/cotton blended fabric |
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| CN116623429A (en) * | 2023-07-25 | 2023-08-22 | 江苏恒力化纤股份有限公司 | Preparation method of durable flame-retardant polyester/cotton blended fabric |
| CN116623429B (en) * | 2023-07-25 | 2023-11-24 | 江苏恒力化纤股份有限公司 | Preparation method of durable flame-retardant polyester/cotton blended fabric |
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