CN115044015A - Fast-drying textile auxiliary and preparation method thereof - Google Patents
Fast-drying textile auxiliary and preparation method thereof Download PDFInfo
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- CN115044015A CN115044015A CN202210708823.4A CN202210708823A CN115044015A CN 115044015 A CN115044015 A CN 115044015A CN 202210708823 A CN202210708823 A CN 202210708823A CN 115044015 A CN115044015 A CN 115044015A
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- Prior art keywords
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- protein powder
- corn protein
- drying
- modified
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- 238000001035 drying Methods 0.000 title claims abstract description 96
- 238000002360 preparation method Methods 0.000 title claims abstract description 81
- 239000004753 textile Substances 0.000 title claims abstract description 36
- 239000012948 isocyanate Substances 0.000 claims abstract description 90
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 90
- 240000008042 Zea mays Species 0.000 claims abstract description 84
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 84
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 84
- 235000005822 corn Nutrition 0.000 claims abstract description 84
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 72
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 72
- 239000000843 powder Substances 0.000 claims abstract description 61
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 13
- 229920000570 polyether Polymers 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920005862 polyol Polymers 0.000 claims abstract description 11
- 150000003077 polyols Chemical class 0.000 claims abstract description 11
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims abstract description 10
- 239000004970 Chain extender Substances 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 238000001704 evaporation Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 20
- 239000007800 oxidant agent Substances 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 235000010333 potassium nitrate Nutrition 0.000 claims description 10
- 239000004323 potassium nitrate Substances 0.000 claims description 10
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 8
- BTXXTMOWISPQSJ-UHFFFAOYSA-N 4,4,4-trifluorobutan-2-one Chemical compound CC(=O)CC(F)(F)F BTXXTMOWISPQSJ-UHFFFAOYSA-N 0.000 claims description 7
- BQACOLQNOUYJCE-FYZZASKESA-N Abietic acid Natural products CC(C)C1=CC2=CC[C@]3(C)[C@](C)(CCC[C@@]3(C)C(=O)O)[C@H]2CC1 BQACOLQNOUYJCE-FYZZASKESA-N 0.000 claims description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 7
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 4
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 4
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims description 4
- 229940112669 cuprous oxide Drugs 0.000 claims description 4
- 235000010344 sodium nitrate Nutrition 0.000 claims description 4
- 239000004317 sodium nitrate Substances 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims 9
- 239000004744 fabric Substances 0.000 description 61
- 235000018102 proteins Nutrition 0.000 description 60
- 239000003351 stiffener Substances 0.000 description 53
- 108010068370 Glutens Proteins 0.000 description 23
- 235000021312 gluten Nutrition 0.000 description 23
- 235000012054 meals Nutrition 0.000 description 23
- 230000002209 hydrophobic effect Effects 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 16
- 230000001965 increasing effect Effects 0.000 description 16
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 235000011132 calcium sulphate Nutrition 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 235000017557 sodium bicarbonate Nutrition 0.000 description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 7
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 6
- ITCAUAYQCALGGV-XTICBAGASA-M sodium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Na+].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O ITCAUAYQCALGGV-XTICBAGASA-M 0.000 description 6
- 238000013329 compounding Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- UCVMQZHZWWEPRC-UHFFFAOYSA-L barium(2+);hydrogen carbonate Chemical compound [Ba+2].OC([O-])=O.OC([O-])=O UCVMQZHZWWEPRC-UHFFFAOYSA-L 0.000 description 3
- 125000001165 hydrophobic group Chemical group 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 108010073771 Soybean Proteins Proteins 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000001175 calcium sulphate Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000019710 soybean protein Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical group [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- XBXFGOSIPGWNLZ-UHFFFAOYSA-N O=C1C=C(CC(C)(C)C1)C.N=C=O Chemical compound O=C1C=C(CC(C)(C)C1)C.N=C=O XBXFGOSIPGWNLZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002494 Zein Polymers 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000005019 zein Substances 0.000 description 1
- 229940093612 zein Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M15/568—Reaction products of isocyanates with polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—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
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The application relates to the technical field of textile auxiliaries, and particularly discloses a drying fast textile auxiliary and a preparation method thereof. The drying fast textile auxiliary comprises the following components in parts by weight: 15-23 parts of modified isocyanate; 22-32 parts of polyether polyol; 15-35 parts of a solvent; 0-12 parts of water-soluble inorganic salt; 5-9 parts of a chain extender; 4-8 parts of an end sealing agent; 40-60 parts of water; 0.05-0.1 part of catalyst; the preparation method of the modified isocyanate comprises the following steps: adding an alkaline saponifying agent into the molten rosin acid, stirring, mixing and evaporating to obtain a mixture A; adding 50-70wt% ethanol and corn protein powder into the mixture A, stirring, mixing, filtering to remove precipitate, and evaporating to obtain a mixture B; adding isocyanate into the mixture B, and stirring and mixing to obtain modified isocyanate; the application provides a fast textile auxiliary of drying, it has the drying fast, advantage that drying efficiency is high.
Description
Technical Field
The application relates to the technical field of textile auxiliaries, in particular to a drying fast textile auxiliary and a preparation method thereof.
Background
Textile auxiliaries are chemicals which are necessary in the production and processing of textiles. Common textile auxiliaries comprise scouring agents, dyeing agents, leveling agents, softening agents, color fixing agents, stiffening agents and the like, and various special functions and styles of softness, crease resistance, shrink resistance, water resistance, antibiosis, antistatic property, flame retardance and the like are endowed to textiles. And the stiffening agent is added in the processing process, aiming at improving the appearance of the fabric, increasing the elasticity, fullness and certain rigidity of the fabric and improving the performance of the fabric.
In the related art, there is a fabric stiffening agent comprising the following components in parts by weight: 30g of polyethylene lactone diol, 2.0g of 1, 4-butanediol, 35g of isophorone isocyanate, 6g of N-methyldiethanolamine, 30g of butanone, aqueous sodium bisulfite solution, 3g of glacial acetic acid and deionized water. When the fabric stiffening agent is used, the fabric is padded with the emulsion of the stiffening agent, then the fabric is dried for 2min at 170 ℃, the fabric is qualitative for 30s at 190 ℃, and after heat treatment, the polymer is melted, namely, a continuous film is formed after drying and is adhered to the fabric fiber, so that the stiffness of the fabric reaches 58.47 mm.
Aiming at the related technologies, the inventor finds that the drying time of the stiffening agent is as long as 2min, and the high-temperature qualitative operation is required for 30s after drying, so that the drying operation time is longer, when a large batch of fabrics are padded, the working efficiency is seriously reduced, the energy consumption is higher, and the environment friendliness is not facilitated. Therefore, it is very important to develop a stiffening agent with high drying rate.
Disclosure of Invention
In order to shorten the drying time of the stiffening agent, the application provides a drying fast textile auxiliary and a preparation method thereof.
The application provides a drying fast textile auxiliary and a preparation method thereof, which adopts the following technical scheme:
in a first aspect, the present application provides a fast drying textile auxiliary, which adopts the following technical scheme:
a dry fast textile auxiliary comprises the following components in parts by weight:
15-23 parts of modified isocyanate;
22-32 parts of polyether polyol;
15-35 parts of a solvent;
0-12 parts of water-soluble inorganic salt;
5-9 parts of a chain extender;
4-8 parts of an end sealing agent;
40-60 parts of water;
0.05-0.1 part of catalyst;
the preparation method of the modified isocyanate comprises the following steps: adding an alkaline saponifying agent into the molten rosin acid, stirring, mixing and evaporating to obtain a mixture A; adding 50-70wt% ethanol and corn protein powder into the mixture A, stirring, mixing, filtering to remove precipitate, and evaporating to obtain a mixture B; and adding isocyanate into the mixture B, and stirring and mixing to obtain the modified isocyanate.
By adopting the technical scheme, the protein in the corn protein powder has the hydrophobic effect driven by entropy increase, the modified isocyanate has the hydrophobic effect driven by entropy increase, and in the subsequent high-temperature drying process, the stiffening agent prepared from the modified isocyanate is heated to increase the entropy, so that the fabric fiber is promoted to discharge water stored in the fabric fiber due to capillary phenomenon, the evaporation and drying are accelerated, and the drying time is shortened. When the fabric is padded, the entropy increase of the stiffening agent is not obvious, the hydrophobic effect is not realized or is relatively small, and the fabric is fully padded by the stiffening agent;
the rosin acid is insoluble in water, so that the rosin acid generates water-soluble sodium abietate by adding an alkaline saponifier to perform saponification reaction with the rosin acid, and the sodium abietate has negative charges in water; meanwhile, the alkaline saponifier provides an alkaline environment for the protein, and the protein also has negative charges in the alkaline environment, so that the sodium abietate and the zein generate hydrophobic interaction and form hydrophobic bonds, the hydrophobic effect of the modified isocyanate is further improved, the water discharge and drying are accelerated, and the drying time of the stiffening agent is shortened.
After the stiffening agent prepared by the method is padded into the fabric, the performance of the fabric is detected, the stiffening agent prepared from the modified isocyanate enables the stiffness of the fabric to reach more than 71mm after 80s, and the stiffness is maintained unchanged, which shows that the longest curing agent of the method is completely dried in 80s, and compared with the drying time of 120s of the stiffening agent prepared from the non-used modified isocyanate, the speed of the curing agent is improved by 1.5 times, so that when the stiffening agent is used in a large batch, the working efficiency of drying the fabric is greatly improved.
And the stiffness is 63mm higher than that of the stiffening agent prepared without using modified isocyanate, which shows that the drying time is shortened on the premise of achieving a better stiffening effect, and a better stiffening effect is obtained, which shows that the stiffening agent prepared by the method can make the fabric have good stiffness and dry quickly, and is a stiffening agent with excellent performance.
Optionally, in the preparation process of the modified isocyanate, the weight ratio of the added amount of the corn protein powder to the isocyanate is 1 (3-5).
By adopting the technical scheme, when the weight ratio of the addition amount of the corn protein powder to the isocyanate is in the range, the compounding effect is better probably because the ratio of the corn protein powder to the isocyanate is proper, the drying time of the fabric is shortened to 70s, and the drying efficiency is improved.
Optionally, in the preparation process of the modified isocyanate, the weight ratio of the alkaline saponifier, the corn protein powder and the abietic acid is (2-4): 2.2-3.0): 1.
By adopting the technical scheme, when the weight ratio of the alkaline saponifier, the corn protein powder and the rosin acid is in the range, the modified isocyanate has more hydrophobic bonds due to good compounding effect of the alkaline saponifier, the corn protein powder and the rosin acid and more thorough reaction, so that the hydrophobicity of the stiffening agent is improved, and the drying time of the fabric is further shortened. After the stiffening agent prepared by the method is padded on the fabric, the performance of the fabric is detected, the drying time is 65s, the drying time is further shortened, and the drying efficiency is further improved.
Optionally, the alkaline saponifier is sodium hydroxide aqueous solution with the concentration of 5-8 wt%.
By adopting the technical scheme, compared with the alkaline saponifier which uses a sodium hydroxide aqueous solution with the concentration of 12 wt%, when the sodium hydroxide aqueous solution with the concentration of 5-8wt% is used, the stiffness of the fabric is increased by 3-4mm in 40s of drying, which shows that the dry stiffness agent proportion is increased under the same drying time, and the drying efficiency is further improved.
The reason for analyzing the above may be that the sodium hydroxide aqueous solution with the concentration within the above range can be used as an alkaline saponifier to fully react with abietic acid to form more sodium abietate and form more hydrophobic bonds with corn protein powder, so that the density of the hydrophobic bonds in the modified isocyanate is increased, the drainage rate of the stiffening agent to the interior of the fabric fiber is increased, and the drying efficiency is further increased.
Optionally, the protein content in the corn protein powder is 40-60%.
By adopting the technical scheme, compared with the corn protein powder with 30% of protein content, when the protein content in the corn protein powder is 40-60%, the drying time of the prepared stiffening agent is shortened from 65s to 60s, which shows that the drying efficiency of the stiffening agent can be improved by increasing the protein content.
Optionally, the corn protein powder is modified corn protein powder, and the preparation method of the modified corn protein powder comprises the steps of adding the corn protein powder and cuprous oxide into an oxidant, stirring and mixing, carrying out ultrasonic dispersion, standing, precipitating, filtering to remove filtrate, drying, crushing and sieving to obtain the modified corn protein powder.
By adopting the technical scheme, the corn protein powder is oxidized by using the oxidant, so that the-NH group on the protein side chain is oxidized to form a carbonyl group, namely the amount of the carbonyl group represents the oxidation degree of the protein. The reason why the oxidation treatment further improves the hydrophobicity of the corn protein powder is probably that the oxidation changes the structure of the protein to further enhance the hydrophobicity, aggregation of the corn protein and exposure of hydrophobic groups are initiated, so that the surface of the modified isocyanate has hydrophobicity, and the hydrophobicity of the corn protein can be improved by ultrasonic treatment, so that the hydrophobic groups on the surface of a polymer prepared from the modified isocyanate are increased, and a better hydrophobic effect is achieved in the high-temperature drying process.
The fabric after the stiffening agent padding prepared by the method is subjected to performance detection, the drying time is shortened to 55s, the stiffness is 75mm, the drying efficiency of the prepared stiffening agent is high, and the stiffening effect on the fabric is good.
Optionally, in the preparation process of the modified corn protein powder, the weight ratio of the addition amount of the oxidant to the corn protein powder is (0.2-0.4): 1.
By adopting the technical scheme, when the weight ratio of the addition amount of the oxidant to the corn protein powder is in the range, the oxidation effect of the protein is better, the drying time of the fabric is shortened to 55s, and the drying efficiency is high.
Optionally, the composition comprises the following components in parts by weight:
15-23 parts of modified isocyanate;
22-32 parts of polyether polyol;
15-35 parts of a solvent;
8-12 parts of water-soluble inorganic salt;
5-9 parts of a chain extender;
4-8 parts of an end sealing agent;
40-60 parts of water;
0.05-0.1 part of catalyst.
By adopting the technical scheme, in the polymerization process of the modified isocyanate and the polyether polyol, the water-soluble inorganic salt occupies partial volume of the polymer, and is hydrolyzed and removed in water, so that micropores are formed on the surface of the polymer, the path for the permeation of water and steam is increased, the surface of the fabric is quickly evaporated and dried, and the drying efficiency is further improved.
When 0 part of water-soluble inorganic salt is used, the fabric stiffness is 71mm, when 3 parts of water-soluble inorganic salt is used, the fabric stiffness is 72mm, and when 8-12 parts of water-soluble inorganic salt is used, the fabric stiffness is 74-75 mm; the use amount of the water-soluble inorganic salt is increased, compared with the use of the water-soluble inorganic salt which is not used or is used in a small amount, the prepared stiffening agent enables the stiffness of the fabric to be higher, and the effect of the stiffening agent on promoting the stiffening of the fabric is better.
Optionally, the water-soluble inorganic salt is a mixture of one or more of sodium bicarbonate, lithium chloride, sodium nitrate, ammonium nitrate and potassium nitrate.
In a second aspect, the application provides a preparation method of a fast drying textile auxiliary, which adopts the following technical scheme: a preparation method of a drying fast textile auxiliary comprises the following steps:
s1, adding modified isocyanate, water-soluble inorganic salt and a catalyst into polyether polyol, and stirring and mixing to obtain an auxiliary agent prepolymer;
s2, adding a solvent and a chain extender into the aid prepolymer, and stirring and mixing to obtain an aid intermediate;
and S3, adding the end sealing agent and water into the auxiliary intermediate, and stirring and mixing to obtain the dry fast textile auxiliary.
In summary, the present application has the following beneficial effects:
1. according to the method, the corn protein powder is used, the modified isocyanate is endowed with the entropy-increasing driven hydrophobic effect, so that in the high-temperature drying process, the heated entropy of the stiffening agent is increased, and the fabric fibers are promoted to discharge water in the fabric fibers, so that the fabric padded with the stiffening agent is quickly dried, the drying time is shortened, and the work efficiency of the work in drying the fabric is greatly improved when the stiffening agent is used in a large scale;
2. the modified corn protein powder is used for enhancing the hydrophobicity of the surface of the modified isocyanate, so that the hydrophobic groups of the stiffening agent prepared from the modified isocyanate are increased, a better hydrophobic effect is achieved in the high-temperature drying process, and the drying efficiency is further improved;
3. the water-soluble inorganic salt is used to occupy partial volume of the polymer, and then is removed by hydrolysis, so that the polymer surface is microporous, and the moisture and steam permeation path is increased, thereby rapidly drying the fabric, and further improving the drying efficiency.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example
Preparation example 1
A modified isocyanate comprises the following components in parts by weight shown in Table 1, and is prepared by the following steps: adding an alkaline saponifying agent into the molten rosin acid, stirring and mixing, reacting for 2 hours at 100 ℃, and evaporating to obtain a mixture A; cooling the mixture A to 40 ℃, adding 60 wt% ethanol and corn protein powder into the mixture A, stirring and mixing, reacting for 2 hours at 40 ℃, filtering to remove precipitates, and evaporating to obtain a mixture B; adding isocyanate into the mixture B, stirring and mixing, and reacting for 3 hours at 115 ℃ to obtain modified isocyanate;
wherein, abietic acid: boiling point 439.5 ℃;
alkaline saponifier: an aqueous solution of sodium hydroxide having a concentration of 12% by weight;
corn protein powder: the protein content is 30%;
isocyanate: TDI-80.
Preparation examples 2 to 7
A modified isocyanate was distinguished from preparation example 1 in that the components and their weights were different, as shown in Table 1.
TABLE 1 Components and weights (kg) thereof in preparation examples 1-7
Preparation example 8
A modified isocyanate different from that in production example 6 in the use of an alkaline saponifier, was used in place of the 12% by weight aqueous solution of sodium hydroxide in an equal amount of 5% by weight aqueous solution of sodium hydroxide.
Preparation example 9
A modified isocyanate different from that in production example 6 in the use of an alkaline saponifier, was used in place of the 12% by weight aqueous solution of sodium hydroxide in an equal amount of 6% by weight aqueous solution of sodium hydroxide.
Preparation example 10
A modified isocyanate different from that in production example 6 in the use of an alkaline saponifier, was used in place of the 12% by weight aqueous solution of sodium hydroxide in an equal amount of an aqueous solution of 8% by weight of sodium hydroxide.
Preparation example 11
A modified isocyanate, which is different from that of preparation example 9 in that the use condition of corn gluten meal is different, and corn gluten meal with 40% protein content is used in place of corn gluten meal with 30% protein content in equal amount.
Preparation example 12
A modified isocyanate is different from that in preparation example 9 in that the use condition of corn gluten meal is different, and corn gluten meal with the protein content of 50% is replaced by corn gluten meal with the protein content of 30% in an equal amount.
Preparation example 13
A modified isocyanate, which is different from that of preparation example 9 in that the use condition of corn gluten meal is different, and corn gluten meal with 60% protein content is used in place of corn gluten meal with 30% protein content in equal amount.
Preparation example 14
A modified isocyanate, which is different from preparation example 12 in that the use condition of corn gluten meal is different, and the same amount of modified corn gluten meal is used instead of the corn gluten meal. The preparation method of the modified corn protein powder comprises the following steps: adding corn protein powder and cuprous oxide into an oxidant, stirring and mixing, reacting at 25 ℃ for 30min, performing ultrasonic dispersion, standing, precipitating, filtering to remove filtrate, drying, crushing, and sieving with a 100-mesh sieve to obtain modified corn protein powder;
wherein the oxidant is hydrogen peroxide with the concentration of 27.5 wt%;
the feeding ratio of the hydrogen peroxide to the corn protein powder to the cuprous oxide is 0.15ml to 1g to 0.02 g.
Preparation example 15
A modified isocyanate is different from the modified isocyanate in the preparation example 14 in that the using amount of an oxidant is different in the preparation process of modified corn protein powder, and the adding amount of the oxidant and the feeding ratio of the corn protein powder are 0.2ml to 1 g.
Preparation example 16
A modified isocyanate is different from the modified isocyanate in the preparation example 14 in that the using amount of an oxidant is different in the preparation process of modified corn protein powder, and the adding amount of the oxidant and the feeding ratio of the corn protein powder are 0.3ml to 1 g.
Preparation example 17
A modified isocyanate is different from the modified isocyanate in the preparation example 14 in that the using amount of an oxidant is different in the preparation process of modified corn protein powder, and the adding amount of the oxidant and the feeding ratio of the corn protein powder are 0.4ml to 1 g.
Examples
Example 1
A drying fast textile auxiliary comprises the components and the corresponding weight shown in the table 2, and is prepared by the following steps:
s1-1, dehydrating polyether polyol at 110 ℃ and a vacuum degree of-0.098 MPa for 70 min;
s1-2, cooling to 85 ℃, adding modified isocyanate, water-soluble inorganic salt and a catalyst into the dehydrated polyether polyol, stirring and mixing, and reacting for 3.5 hours to obtain an auxiliary agent prepolymer;
s2, cooling to 80 ℃, adding a solvent and a chain extender into the aid prepolymer, stirring and mixing, and reacting for 2 hours to obtain an aid intermediate;
s3, cooling to 40 ℃, adding a terminal sealing agent, triethanolamine and water into the auxiliary intermediate, stirring and mixing, reacting for 30min, and then heating to 80 ℃ for reaction for 3h to obtain a dry fast textile auxiliary;
wherein, the modified isocyanate is prepared from the preparation example 1;
the polyether polyol is polyether N-210;
the solvent is absolute ethyl alcohol;
the water-soluble inorganic salt is calcium sulfate;
the chain extender is 1, 4-butanediol;
the end sealing agent is sodium sulfite;
the catalyst is stannous octoate.
Examples 2 to 5
A fast drying textile auxiliary differs from example 1 in the amount of the components used, as shown in Table 2.
TABLE 2 Components and weights (kg) thereof in examples 1-5
Examples 6 to 21
A fast drying textile auxiliary differs from example 4 in the use of modified isocyanates, as shown in Table 3.
TABLE 3 use of modified isocyanates in examples 6 to 21
| Item | Example 3 | Example 6 | Example 7 | Example 8 | \ |
| Modified isocyanates | Preparation example 1 | Preparation example 2 | Preparation example 3 | Preparation example 4 | \ |
| Item | Example 7 | Example 9 | Example 10 | Example 11 | \ |
| Modified isocyanates | Preparation example 3 | Preparation example 5 | Preparation example 6 | Preparation example 7 | \ |
| Item | Example 9 | Example 12 | Example 13 | Example 14 | \ |
| Modified isocyanates | Preparation example 6 | Preparation example 8 | Preparation example 9 | Preparation example 10 | \ |
| Item | Example 13 | Example 15 | Example 16 | Example 17 | \ |
| Modified isocyanates | Preparation example 9 | Preparation example 11 | Preparation example 12 | Preparation example 13 | \ |
| Item | Example 16 | Example 18 | Examples19 | Example 20 | Example 21 |
| Modified isocyanates | Preparation example 12 | Preparation example 14 | Preparation example 15 | Preparation example 16 | Preparation example 17 |
Example 22
A fast drying textile auxiliary differs from example 20 in that, instead of calcium sulphate, an equivalent amount of sodium bicarbonate is used, in the case of water-soluble inorganic salts.
Example 23
A fast-drying textile auxiliary differs from example 20 in that, instead of calcium sulfate, potassium nitrate is used in equal amounts, unlike the use of water-soluble inorganic salts.
Example 24
A fast drying textile auxiliary differs from example 20 in that, instead of calcium sulphate, a mixture of equal amounts of sodium bicarbonate and potassium nitrate in a weight ratio of 1:1 is used, in the case of water-soluble inorganic salts.
Comparative example
Comparative example 1
A textile auxiliary differs from example 1 in that the modified isocyanate is replaced by the same amount of isocyanate TDI-80.
Comparative example 2
A textile auxiliary, which is different from example 1 in that in the preparation of modified isocyanate, an equal amount of soybean protein powder was used instead of corn protein powder.
Comparative examples 3 to 4
A textile auxiliary which differs from example 1 in the use of the individual components is specified in Table 4.
TABLE 4 Components and weights (kg) thereof in comparative examples 3-4
| Components | Comparative example 3 | Comparative example 4 |
| Modified isocyanates | 12 | 25 |
| Polyether N-210 | 20 | 35 |
| Anhydrous ethanol | 13 | 40 |
| Barium bicarbonate | 0 | 15 |
| 1, 4-butanediol | 3 | 10 |
| Sodium sulfite | 3 | 10 |
| Water (W) | 30 | 70 |
| Stannous octoate | 0.02 | 0.2 |
| Triethanolamine | 0.5 | 1.5 |
Performance detection
The drying textile auxiliary prepared in the examples and the comparative examples is used for finishing the textile, and the finishing process is as follows: one dip and one roll, oven dry, and the finished fabric was tested as follows, with the test results recorded in table 5.
Determination of the bending Properties of textiles according to GB/T18318.1-2009 part 1: the method comprises the steps of preparing a polyester woven fabric sample according to the specification in the inclined plane method, drying the sample at the temperature of 170 ℃ for 40s, 45s, 50s, 55s, 60s, 65s, 70s, 80s, 100s, 120s and 140s, detecting and recording the stiffness of the fabric at the corresponding time, and determining the time point when the stiffness is kept unchanged as the drying time when the maximum stiffness of the fabric is reached.
The method for detecting the stiffness comprises the following steps: GB/T18318.1-2009 test for bending Properties of textiles part 1: bevel Law, unit mm.
TABLE 5 results of Performance test of examples 1 to 24 and comparative examples 1 to 4
The following description of the drying textile auxiliaries prepared in this application is given in conjunction with the corresponding data in examples 1 to 24, comparative examples 1 to 4, and Table 5.
In examples 1 to 5, the modified isocyanate prepared in preparation example 1 was used as a raw material to prepare a stiffening agent, so that the drying time of the finished fabric with the stiffening agent to reach the maximum hardness was only 80s, while the drying time of the stiffening agent in comparative example 1 to reach the maximum hardness was as long as 120s because the modified isocyanate was not used, thereby showing that the stiffening agent of the present application has a short drying time and can improve the efficiency by 25%; and the stiffness of the materials in examples 1-5 is more than 71mm and higher than 63mm in comparative example 1, which shows that the stiffening agent of the application can meet the effect of enhancing the stiffness of the fabric, and the enhancing effect is good.
The reason for analyzing the method is probably that the corn protein powder endows isocyanate with the entropy-increasing driven hydrophobic effect, so that the stiffening agent prepared from the modified isocyanate plays a hydrophobic effect in the drying process, and promotes the fabric fibers to discharge water, thereby accelerating the drying and shortening the drying time; and a hydrophobic bond is formed between the sodium abietate and the protein, so that the hydrophobic effect of the modified isocyanate is improved, and the drying time is further shortened.
In conclusion, the stiffening agent prepared from the modified isocyanate can obviously shorten the drying time after the fabric is padded under the effect of enhancing the stiffness of the fabric, so that the working efficiency can be greatly improved when the fabric is padded on a large scale, the energy consumption is saved, the environment friendliness is facilitated, and the practicability is high.
The difference between the comparative example 2 and the example 1 is that in the preparation process of the modified isocyanate, the same amount of soybean protein powder is used to replace corn protein powder, so that the time for the fabric to reach the maximum hardness is prolonged to 100s after the stiffening agent in the comparative example 2 is treated, which shows that the modified isocyanate prepared by using the corn protein powder ensures that the drying time of the stiffening agent is short and the drying rate is high.
Comparative examples 3 to 4 are different from examples 1 to 5 in the amount of each component used, and comparative examples 3 to 4, in which the stiffness was 67mm at the maximum, were lower than examples 1 to 5, show that the stiffening agent had a better reinforcing effect on the fabric when the amount of each component of the stiffening agent was within the range of examples 1 to 5.
And the fabrics of examples 1-5, examples 3-5 had higher stiffness at 40s than the fabrics of examples 1-2, indicating that the amount of stiffening agent dried at this time was greater, i.e., drying efficiency was faster. The reason for analyzing this may be that the specific gravity of barium bicarbonate is increased in examples 3-5, and barium bicarbonate occupies a part of the polymer during polymerization and is hydrolyzed when emulsified by adding water, thereby forming micropores on the surface of the polymer for air and water permeation, and further improving the drying efficiency during drying.
Examples 6-8 differ from example 4 in the weight ratio of corn gluten meal to isocyanate during the preparation of the modified isocyanate. The drying time for the fabrics of examples 6-8 to reach maximum hardness was shortened to 70s, and the drying efficiency was improved. The results show that when the weight ratio of the corn protein powder to the isocyanate is in the range of the examples 6-8, the compounding effect is better due to proper proportion of the corn protein powder to the isocyanate, the hydrophobicity of the stiffening agent is improved, and the drying time is shortened.
Examples 9 to 11 are different from example 7 in the weight ratio of the alkali saponifier, the corn gluten meal and the rosin acid in the preparation of the modified isocyanate. The drying time for the fabric of examples 9-11 to reach maximum stiffness was further shortened to 65s, and the drying efficiency was further improved. It is shown that when the weight ratio of the alkaline saponifier, the corn gluten meal and the abietic acid is in the range of the embodiment 9-11, the modified isocyanate has more hydrophobic bonds, the hydrophobicity of the stiffening agent is improved and the drying time is further shortened probably because the compounding effect of the alkaline saponifier, the corn gluten meal and the abietic acid is good.
Examples 12 to 14 differ from example 10 in the use of an alkaline saponifier during the preparation of the modified isocyanate. The stiffness of the fabric of example 13 increased by 4mm at 40s compared to that of example 10, indicating that the drying efficiency was further improved when 5-8wt% aqueous sodium hydroxide was used as the saponifier.
The reason for this analysis may be that in examples 12 to 14, a lower concentration of aqueous sodium hydroxide solution was used, and the concentration was more suitable, so that abietic acid was sufficiently reacted to form more sodium abietate which forms hydrophobic bonds with corn gluten meal, thereby increasing the number of hydrophobic bonds of the modified isocyanate and further improving the drying efficiency.
Examples 15-17 differ from example 13 in the protein content of the corn gluten meal during the preparation of the modified isocyanate. Compared with example 13, in examples 15-17, because the corn protein powder with higher protein content is adopted, the drying time of the fabric reaching the maximum hardness is shortened from 65s to 60s, and the drying efficiency is improved.
But compared with the corn protein powder containing 40%, 50% and 60% of protein, the drying time of the three is not obviously changed, and the fabric stiffness is similar when the three are dried for 40s, so that the corn protein powder containing more than 40% of protein does not bring direct improvement on the drying performance, and the corn protein powder containing 40-60% of protein is selected to prepare the modified isocyanate by integrating various performances of the stiffening agent.
Example 18 differs from example 16 in that corn gluten meal was used differently in the preparation of the modified isocyanate and an equal amount of modified corn gluten meal was used instead of corn starch. So that the drying time for the fabric of example 18 to reach maximum stiffness was reduced to 55 s. Therefore, the drying efficiency of the stiffening agent is further improved by using the modified isocyanate prepared from the modified corn protein powder.
Examples 19-21 differ from example 18 in the weight ratio of hydrogen peroxide to corn gluten meal during the modified isocyanate preparation and the modified corn gluten meal preparation. When the weight ratio of hydrogen peroxide to corn gluten meal was in the range of examples 19-21, the drying time for the fabric to reach maximum hardness was reduced to 50 seconds, maximizing drying efficiency.
Example 22 differs from example 20 in that sodium bicarbonate was used instead of calcium sulfate in the preparation of the stiffening agent. Example 23 differs from example 20 in that during the preparation of the stiffening agent, an equal amount of potassium nitrate was used instead of calcium sulfate. Example 24 differs from example 20 in that in the preparation of the stiffening agent, equal amounts of a mixture of sodium bicarbonate and potassium nitrate were used instead of calcium sulfate. The effects of lithium chloride, sodium nitrate and ammonium nitrate on the stiffening agent are similar to those of sodium bicarbonate and potassium nitrate, and in the examples of the application, only sodium bicarbonate and potassium nitrate and a mixture of sodium bicarbonate and potassium nitrate are taken as examples for brief introduction.
The stiffness of the fabrics of examples 22-24 at 40s was as high as 64mm compared to example 20, and was closer to the stiffness after complete drying, which is better than example 20, indicating that the drying efficiency of the stiffening agent can be further improved when sodium bicarbonate, lithium chloride, sodium nitrate, ammonium nitrate, or potassium nitrate was used as the water-soluble inorganic salt.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The drying fast textile auxiliary is characterized by comprising the following components in parts by weight:
15-23 parts of modified isocyanate;
22-32 parts of polyether polyol;
15-35 parts of a solvent;
0-12 parts of water-soluble inorganic salt;
5-9 parts of a chain extender;
4-8 parts of an end sealing agent;
40-60 parts of water;
0.05-0.1 part of catalyst;
the preparation method of the modified isocyanate comprises the following steps: adding an alkaline saponifying agent into the molten rosin acid, stirring, mixing and evaporating to obtain a mixture A; adding 50-70wt% ethanol and corn protein powder into the mixture A, stirring, mixing, filtering to remove precipitate, and evaporating to obtain a mixture B; and adding isocyanate into the mixture B, and stirring and mixing to obtain the modified isocyanate.
2. A dry fast spinning aid according to claim 1, characterised in that: in the preparation process of the modified isocyanate, the weight ratio of the added amount of the corn protein powder to the isocyanate is 1 (3-5).
3. A dry fast spinning aid according to claim 1, characterised in that: in the preparation process of the modified isocyanate, the weight ratio of the alkaline saponifier, the corn protein powder and the abietic acid is (2-4): 2.2-3.0): 1.
4. A dry fast spinning aid according to claim 1, characterised in that: the alkaline saponifier is sodium hydroxide water solution with the concentration of 5-8 wt%.
5. A dry fast spinning aid according to claim 1, characterised in that: the protein content in the corn protein powder is 40-60%.
6. A dry fast spinning aid according to claim 1, characterised in that: the corn protein powder is modified corn protein powder, and the preparation method of the modified corn protein powder comprises the steps of adding the corn protein powder and cuprous oxide into an oxidant, stirring and mixing, carrying out ultrasonic dispersion, standing, precipitating, filtering to remove filtrate, drying, crushing and sieving to obtain the modified corn protein powder.
7. A dry fast spinning aid according to claim 6, characterised in that: in the preparation process of the modified corn protein powder, the weight ratio of the addition amount of the oxidant to the corn protein powder is (0.2-0.4): 1.
8. A dry fast spinning aid according to claim 1, characterised in that: comprises the following components in parts by weight:
15-23 parts of modified isocyanate;
22-32 parts of polyether polyol;
15-35 parts of a solvent;
8-12 parts of water-soluble inorganic salt;
5-9 parts of a chain extender;
4-8 parts of an end sealing agent;
40-60 parts of water;
0.05-0.1 part of catalyst.
9. A dry fast spinning aid according to claim 1, characterised in that: the water-soluble inorganic salt is a mixture consisting of one or more of sodium bicarbonate, lithium chloride, sodium nitrate, ammonium nitrate and potassium nitrate.
10. A process for the preparation of a dry fast-spinning aid as claimed in any one of claims 1 to 9, comprising the steps of:
s1, adding modified isocyanate, water-soluble inorganic salt and a catalyst into polyether polyol, and stirring and mixing to obtain an auxiliary agent prepolymer;
s2, adding a solvent and a chain extender into the aid prepolymer, and stirring and mixing to obtain an aid intermediate;
and S3, adding the end sealing agent and water into the auxiliary intermediate, and stirring and mixing to obtain the dry fast textile auxiliary.
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|---|---|---|---|---|
| GB257682A (en) * | 1925-06-09 | 1926-09-09 | Michel Ivan Aische | Manufacture of sizes for textile purposes and the like |
| CN107326651A (en) * | 2017-08-15 | 2017-11-07 | 江南大学 | Multi-functional super-hydrophobic textile finishing agent, its preparation method and application |
| CN110818879A (en) * | 2019-11-15 | 2020-02-21 | 江苏华大新材料有限公司 | Polyurethane resin for folding white-mark-free fabric coating and preparation method thereof |
| CN111718468A (en) * | 2020-07-15 | 2020-09-29 | 烟台云泷化学制品有限公司 | Low-cost high-hardness polyurethane stiffening agent slurry and preparation method and application thereof |
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2022
- 2022-06-22 CN CN202210708823.4A patent/CN115044015A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB257682A (en) * | 1925-06-09 | 1926-09-09 | Michel Ivan Aische | Manufacture of sizes for textile purposes and the like |
| CN107326651A (en) * | 2017-08-15 | 2017-11-07 | 江南大学 | Multi-functional super-hydrophobic textile finishing agent, its preparation method and application |
| CN110818879A (en) * | 2019-11-15 | 2020-02-21 | 江苏华大新材料有限公司 | Polyurethane resin for folding white-mark-free fabric coating and preparation method thereof |
| CN111718468A (en) * | 2020-07-15 | 2020-09-29 | 烟台云泷化学制品有限公司 | Low-cost high-hardness polyurethane stiffening agent slurry and preparation method and application thereof |
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