CN111335023A - Anti-wrinkle finishing process of cotton fabric - Google Patents
Anti-wrinkle finishing process of cotton fabric Download PDFInfo
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- CN111335023A CN111335023A CN202010331348.4A CN202010331348A CN111335023A CN 111335023 A CN111335023 A CN 111335023A CN 202010331348 A CN202010331348 A CN 202010331348A CN 111335023 A CN111335023 A CN 111335023A
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- cotton fabric
- cotton
- crease
- fabrics
- stirring
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 226
- 239000004744 fabric Substances 0.000 title claims abstract description 224
- 238000007730 finishing process Methods 0.000 title claims abstract description 20
- 230000001153 anti-wrinkle effect Effects 0.000 title claims description 19
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 238000001035 drying Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000002791 soaking Methods 0.000 claims abstract description 29
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 26
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000006185 dispersion Substances 0.000 claims abstract description 21
- 239000004246 zinc acetate Substances 0.000 claims abstract description 21
- 239000011787 zinc oxide Substances 0.000 claims abstract description 18
- 239000004113 Sepiolite Substances 0.000 claims abstract description 16
- UWCPYKQBIPYOLX-UHFFFAOYSA-N benzene-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=CC(C(Cl)=O)=C1 UWCPYKQBIPYOLX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 16
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 16
- QLBRROYTTDFLDX-UHFFFAOYSA-N [3-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCCC(CN)C1 QLBRROYTTDFLDX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000008367 deionised water Substances 0.000 claims abstract description 13
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 230000010355 oscillation Effects 0.000 claims abstract description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 48
- 229920001661 Chitosan Polymers 0.000 claims description 31
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 27
- 239000007864 aqueous solution Substances 0.000 claims description 16
- 238000004132 cross linking Methods 0.000 claims description 14
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 13
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 13
- 239000001630 malic acid Substances 0.000 claims description 13
- 235000011090 malic acid Nutrition 0.000 claims description 13
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 12
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 9
- 239000000600 sorbitol Substances 0.000 claims description 9
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 8
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 8
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 230000037303 wrinkles Effects 0.000 abstract description 5
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 239000004753 textile Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 16
- 238000005406 washing Methods 0.000 description 16
- 238000011084 recovery Methods 0.000 description 15
- 229920006037 cross link polymer Polymers 0.000 description 12
- 229920002678 cellulose Polymers 0.000 description 10
- 239000001913 cellulose Substances 0.000 description 10
- 230000014759 maintenance of location Effects 0.000 description 10
- 239000002904 solvent Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000412 dendrimer Substances 0.000 description 3
- 229920000736 dendritic polymer Polymers 0.000 description 3
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 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 description 1
- TYQAAGLICKBDSM-UHFFFAOYSA-N 2-prop-2-enoylbutanedioic acid Chemical class OC(=O)CC(C(O)=O)C(=O)C=C TYQAAGLICKBDSM-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- WSUTUEIGSOWBJO-UHFFFAOYSA-N dizinc oxygen(2-) Chemical compound [O-2].[O-2].[Zn+2].[Zn+2] WSUTUEIGSOWBJO-UHFFFAOYSA-N 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
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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
- 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
- D06M13/10—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 oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
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- 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
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- 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
- D06M11/68—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
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- 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
- D06M11/68—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/72—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 phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with metaphosphoric acids or their salts; with polyphosphoric acids or their salts; with perphosphoric acids or their salts
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- 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
- D06M11/77—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 silicon or compounds thereof
- D06M11/79—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 silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D06M13/10—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 oxygen
- D06M13/144—Alcohols; Metal alcoholates
- D06M13/148—Polyalcohols, e.g. glycerol or glucose
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- 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
- D06M13/325—Amines
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- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
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Abstract
The invention relates to the technical field of textile fabrics, and discloses a wrinkle-resistant finishing process of a cotton fabric. The method comprises the following steps: 1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, and then drying and baking the cotton fabrics to obtain cotton fabrics a; 2) adding ethanolamine into a zinc acetate solution, and uniformly stirring and mixing to obtain zinc oxide sol; soaking the cotton fabric a in zinc oxide sol, and then baking to obtain a cotton fabric b; 3) adding 1, 3-diaminomethylcyclohexane into deionized water, stirring and dissolving, then adding sepiolite, carrying out ultrasonic oscillation and dispersion to obtain a dispersion solution, soaking the cotton fabric b into the dispersion solution, taking out the cotton fabric, putting the cotton fabric into a trimesoyl chloride solution, carrying out reaction for 15-30min, taking out the cotton fabric, and drying to obtain the cotton fabric. The cotton fabric obtained by finishing the cotton fabric disclosed by the invention is good in crease resistance and has excellent lasting crease resistance.
Description
Technical Field
The invention relates to the technical field of fabrics, in particular to an anti-wrinkle finishing process of a cotton fabric.
Background
The cotton fiber is a natural fiber which is most widely applied by human beings, the main component of the cotton fiber is cellulose, the cellulose has excellent performances of moisture absorption, air permeability, soft hand feeling and the like, and is favored by consumers, but the cotton fiber also has the defects of easy wrinkling, shrinkage, poor flame retardant property and the like, and corresponding after-finishing needs to be carried out on the cotton fabric in order to meet the requirements of the consumers aiming at the problems. Cotton fiber has crystallization district and amorphous district, the flexibility of fibre is decided to amorphous district part, when the fabric receives exogenic action, the fibre crookedness degeneration, the local macromolecule of low sequencing degree arranges neatly, deformation takes place for the hydrogen bond in the region, and the fracture of bond and the relative displacement of basic structure unit take place for the difference along with the intensity of bond, after the external force is eliminated, the system takes place the creep and restores, it is too big when external force, the duration of action, system deformation can not be resumeed, take place permanent deformation, the fabric produces the fold, the crease-resistant arrangement of prior art is generally the permanent cross-linking through interfiber hydrogen bond, with the elasticity that improves cotton fabric, fold restorability and dimensional stability.
Chinese patent publication No. CN102517897 discloses a polycarboxylic acid crease-resistant finishing process for low-strength damaged cotton fabrics, which comprises the steps of soaking cotton fabrics subjected to scouring and bleaching in pretreatment liquid, soaking for two times, wherein the rolling residue rate is 90-100%, then drying, soaking and pricking the pretreated cotton fabrics in crease-resistant finishing liquid, soaking for two times, the rolling residue rate is 80%, then drying, and baking at high temperature, wherein the crease-resistant finishing liquid consists of citric acid, sodium hypophosphite and water.
For another example, chinese patent publication No. CN104499277 discloses a polycarboxylic acid crease-resistant finishing liquid for cotton fabric and a finishing method thereof, which is a polycarboxylic acid crease-resistant finishing liquid for cotton fabric using sodium hydroxide as a catalyst, then the cotton fabric is dipped in the finishing liquid, and is dried and baked to obtain crease-resistant cotton fabric.
Further, as disclosed in chinese patent publication No. CN104195822, a method for using acrylic succinic acid for formaldehyde-free crease-resistant finishing of cotton fabrics is provided, in which high-activity allyl groups are introduced into dicarboxylic group-containing structures, a series of acryloyl succinic acid monomers are synthesized by a simple method, and are applied to crease-resistant finishing of cotton fabrics, and finally, the cotton fabrics are pre-baked and baked to obtain crease-resistant cotton fabrics.
According to the method, the cotton fabric is subjected to crease-resistant finishing by utilizing the polycarboxylic acid, so that cross-linking occurs between cotton cellulose, the elasticity and crease-resistant performance of the fiber fabric are improved, but after the cotton fabric is washed for a long time, the polycarboxylic acid inside the cotton fiber is easy to separate, the crease-resistant durability of the cotton fabric is poor, and the crease-resistant performance of the fabric is further improved.
Disclosure of Invention
The invention aims to overcome the technical problems and provides a crease-resistant finishing process of a cotton fabric.
In order to achieve the purpose, the invention adopts the following technical scheme: a crease-resistant finishing process of a cotton fabric comprises the following steps:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, and then drying and baking the cotton fabrics to obtain cotton fabrics a; wherein the components of the crease-resistant finishing liquid comprise citric acid, malic acid, sodium hypophosphite, sorbitol and water;
2) adding ethanolamine into a zinc acetate solution, stirring and mixing uniformly, heating to 55-60 ℃ in a water bath, and stirring for 1-2h to obtain zinc oxide sol; placing the cotton fabric a into zinc oxide sol to be soaked for 1-3h, and then carrying out baking treatment to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water, stirring and dissolving, then adding sepiolite, carrying out ultrasonic oscillation and dispersion to obtain a dispersion solution, soaking the cotton fabric b into the dispersion solution for 10-20min, taking out the cotton fabric, placing the cotton fabric into a trimesoyl chloride solution, carrying out reaction for 15-30min, taking out the cotton fabric, and drying to obtain the cotton fabric.
Preferably, the ginning allowance rate in the cotton fabric padding process in the step 1) is 80-85%.
Preferably, the anti-wrinkle finishing liquid in the step 1) comprises the following components in parts by weight: 20-30 parts of citric acid, 10-15 parts of malic acid, 5-10 parts of sodium hypophosphite, 0.5-1 part of sorbitol and 250 parts of water 200-sodium hypophosphite.
Preferably, the molar ratio of the ethanolamine to the zinc acetate in the step 2) is 1: 1-2.
Preferably, the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane in the step 3) is 1: 4-8.
Preferably, the cotton fabric a is pretreated in the step 2), and the method comprises the following steps:
adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain carboxymethyl chitosan aqueous solution, soaking cotton fabric a in carboxymethyl chitosan for 10-30min, then placing the cotton fabric a soaked with carboxymethyl chitosan into sodium hexametaphosphate aqueous solution, crosslinking at constant temperature of 40-50 ℃ for 1-2h, and placing in an oven for drying treatment to obtain the carboxymethyl chitosan aqueous solution.
Preferably, the concentration of the carboxymethyl chitosan solution is 3.5 to 6.0 wt%.
Preferably, the mass concentration of the aqueous solution of sodium hexametaphosphate is 1 to 3%.
The invention firstly uses crease-resistant finishing liquid to dip and prick cotton fabrics, and in the crease-resistant finishing liquid, citric acid and malic acid are used as main components of the crease-resistant finishing liquid, so that the cross-linking effect is realized between cellulose molecular chains, the elasticity of cotton fibers is improved, and the crease-resistant performance of cotton fiber fabrics is further improved; sodium hypophosphite is used as a catalyst for the reaction of polycarboxylic acid and cellulose molecules; the sorbitol is used as an additive to improve the whiteness of cotton fiber fabrics and avoid the yellowing of the cotton fabrics caused by polycarboxylic acid finishing.
According to the anti-wrinkle finishing liquid, citric acid and malic acid are used as crosslinking components of cotton cellulose, esterification reaction is carried out between citric acid and a plurality of malic acid molecules to form a dendrimer, more carboxyl groups are arranged on the dendrimer than those on the original citric acid molecules, acid anhydride is formed between adjacent carboxyl groups, the acid anhydride reacts with hydroxyl groups on the cellulose, and then bonding and crosslinking are carried out between cellulose molecular chains, and compared with a branched structure of the dendrimer, the crosslinking degree between the cellulose molecular chains can be improved by using citric acid singly, so that the elasticity, wrinkle recovery property and size stability of cotton fabrics are improved. On the other hand, 1, 3-diaminomethylcyclohexane reacts with trimesoyl chloride to coat and polymerize a high-molecular cross-linked polymer layer on the surface of the cotton fabric fiber, and the high-molecular cross-linked polymer layer coats the surface of the cotton fabric fiber and can isolate external moisture in the washing process of the cotton fabric, so that the problem that the cross-linking degree between the cotton fabric cellulose fibers is reduced, the elasticity of the cotton fabric is reduced, and the wrinkle resistance of the cotton fabric is reduced is solved; in addition, the macromolecule cross-linked polymer layer coated on the surface of the cotton fabric fiber can improve the elasticity and the anti-shrinkage property of the cotton fabric fiber, and further improve the anti-wrinkle property of the cotton fabric.
In the process of washing cotton fabrics, the high-molecular cross-linked polymer coated on the surfaces of the cotton fabrics is easy to fall off and break due to the washing friction effect of the cotton fabrics. Therefore, the fibrous sepiolite is embedded in the high-molecular cross-linked polymer layer, so that the effect of reinforcing the high-molecular cross-linked polymer layer coated on the surface of the cotton fabric fiber is achieved, and the cross-linked polymer layer is prevented from cracking under the action of an external washing force. In addition, the zinc oxide zinc nanoparticles are soaked and deposited on the surface of the cotton fabric fiber, so that the roughness of the surface of the cotton fabric fiber is increased, the bonding strength of the high-molecular cross-linked polymer coated on the surface of the cotton fabric fiber and the cotton fabric fiber is favorably improved, and the cross-linked polymer layer of the cotton fabric is not easy to separate from the surface of the cotton fabric under the action of washing friction external force.
The method comprises the steps of immersing the cotton fabric into zinc oxide sol to enable zinc oxide nanoparticles to be deposited on the surface of the cotton fabric fiber, so that the roughness of the surface of the cotton fabric fiber is improved, wherein the binding action force of the nano zinc oxide and the cotton fabric fiber is weaker. On the other hand, the carboxymethyl chitosan crosslinked on the surface of the cotton fabric fiber is beneficial to further improving the crease resistance of the cotton fabric.
Drawings
FIG. 1 is a graph of the linear relationship between the number of washes of cotton fabric and the recovery angle of rebound for example 1 and comparative examples 1-4 of the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples. In the present invention, unless otherwise specified, all the raw materials and equipment used are commercially available or commonly used in the art, and the methods in the examples are conventional in the art unless otherwise specified.
The cotton fabric used in the specific embodiment of the invention is pure cotton twill woven fabric, the specification is 50tex × 60tex, the density is 500 pieces/10 cm × 240 pieces/10 cm, the carboxymethyl chitosan has the viscosity (25 ℃) of 100 and 200mpa.s, the substitution degree is more than or equal to 80 percent, the pH value is 6-8, Macao Biotech limited company in Zhejiang, sepiolite wool, the longitudinal fiber ratio is 2.8-3.2, the tensile strength is 892.4-1283.7Mpa, and Tofeng sepiolite limited company.
Example 1
The anti-wrinkle finishing process of the cotton fabric comprises the following steps:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, wherein the cotton fabric retention rate is 85%, drying the cotton fabrics at 80 ℃ for 10min, and then drying the cotton fabrics at 150 ℃ for 5min to obtain cotton fabrics a; the crease-resistant finishing liquid comprises the following components in parts by weight: 28 parts of citric acid, 13 parts of malic acid, 10 parts of sodium hypophosphite, 0.5 part of sorbitol and 230 parts of water;
2) adding zinc acetate into an ethylene glycol monomethyl ether solvent, stirring and dissolving to obtain a zinc acetate solution with the mass concentration of 2%, adding ethanolamine into the zinc acetate solution, stirring and mixing uniformly, wherein the molar ratio of ethanolamine to zinc acetate is 1:2, heating in a water bath to 60 ℃, and stirring for 1h to obtain zinc oxide sol for later use;
adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain a carboxymethyl chitosan aqueous solution with the concentration of 5.0 wt%, soaking cotton fabric a into the carboxymethyl chitosan for 25min, then putting the cotton fabric a soaked with the carboxymethyl chitosan into a sodium hexametaphosphate aqueous solution with the mass concentration of 3%, crosslinking at the constant temperature of 40 ℃ for 1.5h, and drying in an oven at the temperature of 80 ℃ for 3h to obtain pretreated cotton fabric a;
soaking the pretreated cotton fabric a in zinc oxide sol for 2 hours, and then baking the cotton fabric a for 1 hour at 120 ℃ to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water according to the mass-volume ratio of 1g/80mL, stirring and dissolving, then adding sepiolite, wherein the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane is 1:5, and performing ultrasonic oscillation dispersion for 30min under the power of 100W to obtain dispersion liquid for later use;
adding trimesoyl chloride into a normal hexane solvent, heating and stirring the mixture at 50 ℃ for dissolving, and preparing a trimesoyl chloride solution with the concentration of 1 wt% for later use;
and (3) soaking the cotton fabric b in the dispersion liquid for 15min, taking out the cotton fabric, then putting the cotton fabric into a trimesoyl chloride solution for reaction for 25min, taking out the cotton fabric, and drying the cotton fabric in an oven at 70 ℃ for 3h to obtain the cotton fabric.
Example 2
The anti-wrinkle finishing process of the cotton fabric comprises the following steps:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, wherein the cotton fabric retention rate is 80%, drying the cotton fabrics at 80 ℃ for 10min, and then drying the cotton fabrics at 150 ℃ for 5min to obtain cotton fabrics a; the crease-resistant finishing liquid comprises the following components in parts by weight: 22 parts of citric acid, 13 parts of malic acid, 5 parts of sodium hypophosphite, 1 part of sorbitol and 230 parts of water;
2) adding zinc acetate into an ethylene glycol monomethyl ether solvent, stirring and dissolving to obtain a zinc acetate solution with the mass concentration of 2%, adding ethanolamine into the zinc acetate solution, stirring and mixing uniformly, wherein the molar ratio of ethanolamine to zinc acetate is 1:1, heating in a water bath to 55 ℃, and stirring for 2 hours to obtain zinc oxide sol for later use;
adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain a carboxymethyl chitosan aqueous solution with the concentration of 4.0 wt%, soaking cotton fabric a into the carboxymethyl chitosan for 15min, then placing the cotton fabric a soaked with the carboxymethyl chitosan into a sodium hexametaphosphate aqueous solution with the mass concentration of 1%, crosslinking at the constant temperature of 50 ℃ for 1.5h, and drying in an oven at the temperature of 80 ℃ for 3h to obtain pretreated cotton fabric a;
soaking the pretreated cotton fabric a in zinc oxide sol for 1.5h, and then baking the cotton fabric a for 1h at 120 ℃ to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water according to the mass-volume ratio of 1g/80mL, stirring and dissolving, then adding sepiolite, wherein the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane is 1:6, and performing ultrasonic oscillation dispersion for 30min under the power of 100W to obtain dispersion liquid for later use;
adding trimesoyl chloride into a normal hexane solvent, heating and stirring the mixture at 50 ℃ for dissolving, and preparing a trimesoyl chloride solution with the concentration of 1 wt% for later use;
and (3) soaking the cotton fabric b in the dispersion liquid for 12min, taking out the cotton fabric, then putting the cotton fabric into a trimesoyl chloride solution for reacting for 18min, taking out the cotton fabric, and drying the cotton fabric in a drying oven at 70 ℃ for 3h to obtain the cotton fabric.
Example 3
The anti-wrinkle finishing process of the cotton fabric comprises the following steps:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, wherein the cotton fabric retention rate is 83%, drying the cotton fabrics at 80 ℃ for 10min, and then drying the cotton fabrics at 150 ℃ for 5min to obtain cotton fabrics a; the crease-resistant finishing liquid comprises the following components in parts by weight: 30 parts of citric acid, 15 parts of malic acid, 8 parts of sodium hypophosphite, 0.8 part of sorbitol and 250 parts of water;
2) adding zinc acetate into an ethylene glycol monomethyl ether solvent, stirring and dissolving to obtain a zinc acetate solution with the mass concentration of 2%, adding ethanolamine into the zinc acetate solution, stirring and mixing uniformly, wherein the molar ratio of ethanolamine to zinc acetate is 1:1.5, heating in a water bath to 58 ℃, and stirring for 1.5h to obtain zinc oxide sol for later use;
adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain a carboxymethyl chitosan aqueous solution with the concentration of 6.0wt%, soaking cotton fabric a into the carboxymethyl chitosan for 30min, then placing the cotton fabric a soaked with the carboxymethyl chitosan into a sodium hexametaphosphate aqueous solution with the mass concentration of 2%, crosslinking at the constant temperature of 45 ℃ for 2h, and drying in an oven at the temperature of 80 ℃ for 3h to obtain pretreated cotton fabric a;
soaking the pretreated cotton fabric a in zinc oxide sol for 3 hours, and then baking the cotton fabric a for 1 hour at 120 ℃ to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water according to the mass-volume ratio of 1g/80mL, stirring and dissolving, then adding sepiolite, wherein the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane is 1:4, and performing ultrasonic oscillation dispersion for 30min under the power of 100W to obtain dispersion liquid for later use;
adding trimesoyl chloride into a normal hexane solvent, heating and stirring the mixture at 50 ℃ for dissolving, and preparing a trimesoyl chloride solution with the concentration of 1 wt% for later use;
and (3) soaking the cotton fabric b in the dispersion liquid for 20min, taking out the cotton fabric, then putting the cotton fabric into a trimesoyl chloride solution for reaction for 30min, taking out the cotton fabric, and drying the cotton fabric in a drying oven at 70 ℃ for 3h to obtain the cotton fabric.
Example 4
The anti-wrinkle finishing process of the cotton fabric comprises the following steps:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, wherein the cotton fabric retention rate is 82%, drying the cotton fabrics at 80 ℃ for 10min, and then drying the cotton fabrics at 150 ℃ for 5min to obtain cotton fabrics a; the crease-resistant finishing liquid comprises the following components in parts by weight: 20-30 parts of citric acid, 10-15 parts of malic acid, 8 parts of sodium hypophosphite, 0.8 part of sorbitol and 250 parts of water 200-;
2) adding zinc acetate into an ethylene glycol monomethyl ether solvent, stirring and dissolving to obtain a zinc acetate solution with the mass concentration of 2%, adding ethanolamine into the zinc acetate solution, stirring and mixing uniformly, wherein the molar ratio of ethanolamine to zinc acetate is 1:1.5, heating in a water bath to 58 ℃, and stirring for 1.5h to obtain zinc oxide sol for later use;
adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain a carboxymethyl chitosan aqueous solution with the concentration of 3.5 wt%, soaking cotton fabric a into the carboxymethyl chitosan for 10min, then placing the cotton fabric a soaked with the carboxymethyl chitosan into a sodium hexametaphosphate aqueous solution with the mass concentration of 2%, crosslinking for 1h at the constant temperature of 45 ℃, and drying for 3h in an oven at the temperature of 80 ℃ to obtain a pretreated cotton fabric a;
soaking the pretreated cotton fabric a in zinc oxide sol for 1h, and then baking the cotton fabric a for 1h at 120 ℃ to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water according to the mass-volume ratio of 1g/80mL, stirring and dissolving, then adding sepiolite, wherein the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane is 1:8, and performing ultrasonic oscillation dispersion for 30min under the power of 100W to obtain dispersion liquid for later use;
adding trimesoyl chloride into a normal hexane solvent, heating and stirring the mixture at 50 ℃ for dissolving, and preparing a trimesoyl chloride solution with the concentration of 1 wt% for later use;
and (3) soaking the cotton fabric b in the dispersion liquid for 10min, taking out the cotton fabric, then putting the cotton fabric into a trimesoyl chloride solution for reaction for 15min, taking out the cotton fabric, and drying the cotton fabric in an oven at 70 ℃ for 3h to obtain the cotton fabric.
Comparative example 1 differs from example 1 in the absence of malic acid in the crease-resistant finish.
Comparative example 2 differs from example 1 in that step 3) is absent from the cotton fabric anti-crease finishing process.
Comparative example 3 differs from example 1 in that the pre-treated cotton fabric a was not soaked with zinc oxide sol.
Comparative example 4 differs from example 1 in that cotton fabric a has not been pretreated.
The cotton fabric performance test and test method comprises the following steps:
1. determination of wrinkle resistance recovery angle WRA:
shearing the finished cotton fabric into a sample with the size of 15 × 40mm, then folding and flattening the sample along the long edge, weighing for negative 5min, taking out a half piece of aligned crease, placing the half piece of aligned crease on a movable flat clamp, taking the other half piece of aligned crease as a free wing, allowing the aligned crease to gradually bounce off, recording the quick rebound recovery angle after releasing for 15s, recording the slow rebound recovery angle after continuously releasing for 5min, wherein the recovery performance is represented by the sum of the warp and weft recovery angles, and the unit is degree.
2. Determination of breaking strength retention:
the breaking strength retention of the fabric was determined by the strip method according to GB/T3923.1-1997. The specimen was cut to a standard specified size, stretched to break at a constant rate, and the force at which the specimen broke was recorded. And shearing two groups of samples from each group of finished cotton fabrics, wherein one group of samples is warp samples, the other group of samples is weft samples, and each group of samples comprises five samples. The sample should avoid selecting areas with wrinkles, defects or uneven density, the sample being at least 150mm from the selvedge. The effective width of each specimen should be 50mm, excluding the burr, and its length should be greater than the distance between the two holders, typically greater than 200 mm. Placing the prepared sample strip in a drying vessel with constant temperature and humidity for drying for more than 24h, ensuring that a tensile force gravity center line passes through the center of a clamp during measurement, locking an upper clamp head to enable the sample strip to naturally droop, clamping a lower clamp jaw, opening a sample instrument, stretching the sample strip to fracture, if the sample slides asymmetrically or the sliding amount of the sample at the clamp jaw is more than 2mm, abandoning an experimental result, calculating according to the fracture strength to obtain the fracture strength retention rate, wherein the fracture strength retention rate calculation formula is as follows:
BSR(％)＝BS/BS0×100％；
in the formula BS0Represents the breaking strength (N) of the cotton fabric before finishing;
wherein BS represents the breaking strength (N) of the finished cotton fabric.
3. And (3) measuring the whiteness of the cotton fabric:
and (3) measuring the whiteness of the cotton fabric by adopting a WSB-IId/o whiteness measuring instrument, measuring the whiteness of the cotton fabric after each finishing for five times at different positions according to the specification, and taking the arithmetic mean value of the whiteness as a reference value.
From the above test results, it can be obtained that the recovery angle of the cotton fabrics obtained in examples 1 to 4 is superior to that of comparative example 1, comparative example 2 and comparative example 4 and is equivalent to that of comparative example 3. The recovery angle of the cotton fabric is superior to that of the comparative example 1, and the crease-resistant effect of the finishing liquid prepared by compounding citric acid and malic acid on the cotton fabric is proved to be superior to that of the single citric acid on the cotton fabric; the recovery angle of the cotton fabric is superior to that of the comparative example 2, and the fact that the anti-wrinkle performance of the cotton fabric can be improved by the high-molecular cross-linked polymer layer coated on the surface of the cotton fabric fiber is proved; the recovery angle of the cotton fabric in the example is superior to that in the comparative example 4, the crease resistance of the cotton fabric after the chitosan pretreatment of the cotton fabric fiber is proved to be improved. In addition, the recovery angle of the cotton fabric is inversely related to the breaking strength retention rate, the breaking strength retention rate of the cotton fabric after finishing in the embodiments 1-4 of the invention reaches over 84%, and the whiteness reaches over 80, which proves that the cotton fabric after finishing by the finishing liquid has higher breaking strength and whiteness, and the wearability of the cotton fabric is not influenced.
4. And (3) water washing resistance determination:
since cotton fabric is frequently washed to remove stains on the fabric, the water washing resistance of the cotton fabric needs to be measured. During washing, the finishing agent and ester groups formed by cellulose undergo hydrolysis reaction, so that the crease-resist effect is reduced, and the durability of the crease-resist effect is influenced. The wash fastness of the cotton fabrics of example 1 and comparative examples 1-4 was tested according to the invention. Washing fastness of the cotton fabric is according to AATCC Test Method 124-1989, the cotton fabric is placed in a washing machine for washing, the washing condition is 66g of standard washing powder, the total amount of a sample and a filler is 1.8Kg, the temperature is 40 ℃, the time is 35min, the drying condition is 80 ℃, and the time is 60 min. The cotton fabric was washed 0 times, 10 times, 20 times, 30 times, 40 times, 50 times, respectively, and then the recovery angle of the rebound of the cotton fabric was measured. The test results are shown in the following table and in FIG. 1:
from fig. 1 and the above test results, it can be obtained that the slow rebound recovery angle of the cotton fabrics of example 1 and comparative example 1 is not much changed with the increase of the number of washing times, while the slow rebound recovery angle of the cotton fabrics of comparative examples 2 to 4 is much decreased with the increase of the number of washing times. The fact that the macromolecular cross-linked polymer layer coated on the surface of the cotton fabric fiber can prolong the crease-resistant lasting performance of the cotton fabric is proved, in the embodiment 1 and the comparative example 1, the macromolecular cross-linked polymer layer is coated on the surface of the cotton fabric fiber, so that external moisture can be isolated in the washing process of the cotton fabric, and the problem that the cotton fabric is soaked in water for a long time to cause hydrolysis reaction of ester groups formed between polybasic acid of a finishing agent and cellulose fiber, further, tree-shaped polymers in the cotton fabric are soaked and dissolved out, the cross-linking degree between the cotton fabric and the cellulose fiber is reduced, further, the elasticity of the cotton fabric is reduced, and the crease-resistant performance of the cotton.
Claims (8)
1. The anti-wrinkle finishing process of the cotton fabric is characterized by comprising the following steps of:
1) soaking and pricking cotton fabrics in the crease-resistant finishing liquid for two times, and then drying and baking the cotton fabrics to obtain cotton fabrics a; wherein the components of the crease-resistant finishing liquid comprise citric acid, malic acid, sodium hypophosphite, sorbitol and water;
2) adding ethanolamine into a zinc acetate solution, stirring and mixing uniformly, heating to 55-60 ℃ in a water bath, and stirring for 1-2h to obtain zinc oxide sol; placing the cotton fabric a into zinc oxide sol to be soaked for 1-3h, and then carrying out baking treatment to obtain a cotton fabric b;
3) adding 1, 3-diaminomethylcyclohexane into deionized water, stirring and dissolving, then adding sepiolite, carrying out ultrasonic oscillation and dispersion to obtain a dispersion solution, soaking the cotton fabric b into the dispersion solution for 10-20min, taking out the cotton fabric, placing the cotton fabric into a trimesoyl chloride solution, carrying out reaction for 15-30min, taking out the cotton fabric, and drying to obtain the cotton fabric.
2. The crease-resistant finishing process of the cotton fabric according to claim 1, characterized in that the ginning allowance in the cotton fabric padding process in the step 1) is 80-85%.
3. The anti-wrinkle finishing process of the cotton fabric according to claim 1, characterized in that the anti-wrinkle finishing liquid in the step 1) comprises the following components in parts by weight: 20-30 parts of citric acid, 10-15 parts of malic acid, 5-10 parts of sodium hypophosphite, 0.5-1 part of sorbitol and 250 parts of water 200-sodium hypophosphite.
4. The anti-wrinkle finishing process of the cotton fabric according to claim 1, wherein the molar ratio of the ethanolamine to the zinc acetate in the step 2) is 1: 1-2.
5. The anti-wrinkle finishing process of the cotton fabric according to claim 1, characterized in that the mass ratio of the sepiolite to the 1, 3-diaminomethylcyclohexane in the step 3) is 1: 4-8.
6. The anti-wrinkle finishing process of the cotton fabric according to claim 1, wherein the cotton fabric a in the step 2) is pretreated, and the process comprises the following steps: adding carboxymethyl chitosan into deionized water, stirring and dissolving to obtain carboxymethyl chitosan aqueous solution, soaking cotton fabric a in carboxymethyl chitosan for 10-30min, then placing the cotton fabric a soaked with carboxymethyl chitosan into sodium hexametaphosphate aqueous solution, crosslinking at constant temperature of 40-50 ℃ for 1-2h, and placing in an oven for drying treatment to obtain the carboxymethyl chitosan aqueous solution.
7. The anti-wrinkle finishing process of the cotton fabric according to claim 6, wherein the concentration of the carboxymethyl chitosan solution is 3.5-6.0 wt%.
8. The anti-wrinkle finishing process of the cotton fabric according to claim 6, wherein the mass concentration of the sodium hexametaphosphate aqueous solution is 1-3%.
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