CN113818262A - Aqueous alkali-decrement microfiber colorant and preparation method thereof - Google Patents
Aqueous alkali-decrement microfiber colorant and preparation method thereof Download PDFInfo
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- CN113818262A CN113818262A CN202111214786.3A CN202111214786A CN113818262A CN 113818262 A CN113818262 A CN 113818262A CN 202111214786 A CN202111214786 A CN 202111214786A CN 113818262 A CN113818262 A CN 113818262A
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- microfiber
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- dispersant
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- 229920001410 Microfiber Polymers 0.000 title claims abstract description 33
- 239000003658 microfiber Substances 0.000 title claims abstract description 33
- 239000003086 colorant Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 20
- 239000000080 wetting agent Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000012860 organic pigment Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000006185 dispersion Substances 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- -1 acrylic acid modified maleic anhydride Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 4
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical group [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000010985 leather Substances 0.000 abstract description 15
- 239000002649 leather substitute Substances 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 6
- 238000004043 dyeing Methods 0.000 abstract description 5
- 238000004040 coloring Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000009736 wetting Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000038 blue colorant Substances 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000001062 red colorant Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000001060 yellow colorant Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
An aqueous alkali-decrement microfiber colorant is prepared from a dispersant, a wetting agent, an organic pigment, pure water and a defoaming agent; wherein, the mass percent of the dispersant is 2-5%, and the mass percent of the wetting agent is 5-8%; 35-40% of pigment, 50-55% of pure water and 0.2-0.5% of defoaming agent. The preparation process of the microfiber colorant comprises the steps of material proportioning, primary wetting and stirring, grinding by a sand mill, particle size testing and blending to form a finished product. The microfiber colorant can effectively improve the pigment content, enables the pigment to have good dispersibility and color developability, and has good storage stability. The invention changes the solvent type of the microfiber synthetic leather industry into the pigment coloring of the water-based microfiber leather, replaces the dyeing process, greatly reduces the discharge of VOC and the generation of waste water, and reduces the energy consumption.
Description
Technical Field
The invention relates to a water-based alkali-decrement microfiber colorant and a preparation method thereof, belonging to the technical field of microfiber leather preparation.
Background
Superfine fiber synthetic leather is a 3 rd generation synthetic leather product, takes non-woven fabric with a three-dimensional reticular structure made of superfine fibers as a base material, has a polyurethane elastomer reticular structure and a nylon bundle-shaped structure, simulates the microstructure of dermal collagen, and is endowed with excellent thermodynamic property, rebound resilience, softness and fullness just because of the existence of the special structures. The microfiber leather is the best substitute of natural leather, and is developed rapidly in China, and the national synthetic leather product in 2021 year is about 3 hundred million m2It accounts for more than 90% of the global yield.
The existing production process flow of the aqueous microfiber leather is shown in figure 1. According to the process characteristics of alkali weight reduction of the aqueous microfiber leather, the coloring agent is added in the impregnation section, so that the coloring agent is required not to change color at the temperature of 85-100 ℃ in a 10% sodium hydroxide solution.
At present, microfiber leather produced in China is almost all solvent-based, and the use of a large amount of organic solvents causes environmental pollution and resource waste. With the implementation of a series of national environmental protection laws and regulations, the industry of microfiber synthetic leather is bound to change from solvent type to water type. The dyeing process of the water-based microfiber leather is generally back-stage dyeing, a large amount of wastewater is generated in the process, and energy consumption is increased, so that the research and development of the coloring agent in the impregnation stage of the microfiber leather are particularly important.
Disclosure of Invention
The invention aims to solve the problem of coloring the front section of water-based microfiber leather so as to reduce the dyeing process of the rear section of the microfiber leather, and provides a water-based alkali-decrement microfiber colorant and a preparation method thereof.
The technical scheme of the invention is that the aqueous alkali-decrement microfiber colorant is prepared from a dispersant, a wetting agent, an organic pigment, pure water and a defoaming agent; wherein, the mass percent of the dispersant is 2-5%, and the mass percent of the wetting agent is 5-8%; 35-40% of pigment, 50-55% of pure water and 0.2-0.5% of defoaming agent.
The dispersant is an acrylic acid modified maleic anhydride dispersant; the wetting agent is isomeric alcohol polyoxyethylene ether; the organic pigment is phthalocyanine blue 15: 3. pigment red 254, furnace high pigment carbon black p.bl.6 or pigment yellow 83; the defoaming agent is an organic silicon defoaming agent.
The preparation method of the aqueous alkali-reduced microfiber colorant comprises the following steps:
(1) adding a wetting agent, a dispersing agent, a defoaming agent and water into a stirring kettle in sequence, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min;
(2) adding organic pigment, and stirring at 1500r/min for 1 h;
(3) adding the mixture obtained in the step (2) into a sand mill for grinding for 2-3 times, wherein the particle size D97 of the pigment is less than 5 um;
(4) and (4) adding the mixture obtained in the step (3) into a blending kettle for blending, detecting and packaging.
The sand mill adopts a 5mm zirconium bead sand mill.
The working principle of the invention is that as the colorant is added into the resin at the front section, the pigment particles are wrapped by the resin, and the color fastness to rubbing of the microfiber leather is effectively improved by the same-ratio rear-section dyeing; the invention selects high-physical-property pigment for coloring, and compared with the dye dyed in the later stage, the dye has higher heat resistance, weather resistance and environmental protection performance. The invention tests a large number of different types of pigments and additives, and selects alkali-resistant pigments and additives to solve the problem that the coloring agent achieves alkali resistance.
The invention aims at the problem of storage stability of the aqueous color paste: the higher the pigment content of the color paste, the more difficult the storage stability. According to the invention, through a large number of tests and data analysis, the ratio is finally determined, the acrylic acid modified maleic anhydride dispersing agent is selected and matched with the isomeric alcohol polyoxyethylene ether wetting agent, so that the microfiber colorant can effectively improve the pigment content, enables the pigment to have good dispersibility and color rendering property, and can be produced to have good storage stability.
The microfiber colorant has the beneficial effects that the microfiber colorant can effectively improve the pigment content, enables the pigment to have good dispersibility and color development, and has good storage stability. The invention changes the industry of the microfiber synthetic leather from solvent type to water-based microfiber leather coloring, and simultaneously greatly reduces the generation of waste water and energy consumption.
Drawings
FIG. 1 is a flow chart of a production process of aqueous microfiber leather;
FIG. 2 is a schematic flow chart of a method for preparing the aqueous alkali-deweighting microfiber colorants according to the present invention.
Detailed Description
An embodiment of the present invention is shown in fig. 2.
Example 1
The aqueous black colorant of this example has the following formulation, in mass fraction:
acrylic acid modified maleic anhydride dispersant: 5 percent;
isomeric alcohol polyoxyethylene ether wetting agent: 6 percent;
pure water: 53.7 percent;
defoaming agent: 0.3 percent;
carbon black: 35 percent.
Sequentially putting a dispersing agent, a wetting agent, pure water and a defoaming agent into a stirring kettle, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min; putting the carbon black into a stirring kettle, and stirring for 1h at the rotating speed of a dispersion machine of 1500 r/min; grinding for 2-3 times with a sand mill until the pigment particle diameter D97 is below 5 um.
Example 2
The aqueous red colorant of this example was formulated as follows, in mass fractions:
acrylic acid modified maleic anhydride dispersant: 3 percent;
isomeric alcohol polyoxyethylene ether wetting agent: 6 percent;
pure water: 50.7 percent;
defoaming agent: 0.3 percent;
pigment red 254: 40 percent.
Sequentially putting a dispersing agent, a wetting agent, pure water and a defoaming agent into a stirring kettle, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min; putting the pigment red 254 into a stirring kettle, and stirring for 1h at the rotating speed of a dispersion machine of 1500 r/min; grinding for 2-3 times with a sand mill until the pigment particle diameter D97 is below 5 um.
Example 3
The aqueous yellow colorant of this example was formulated as follows in parts by mass:
acrylic acid modified maleic anhydride dispersant: 3 percent;
isomeric alcohol polyoxyethylene ether wetting agent: 6 percent;
pure water: 50.7 percent;
defoaming agent: 0.3 percent;
pigment yellow 83: 40 percent.
Sequentially putting a dispersing agent, a wetting agent, pure water and a defoaming agent into a stirring kettle, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min; putting pigment yellow 83 into a stirring kettle, and stirring for 1h at the rotating speed of a dispersion machine of 1500 r/min; grinding for 2-3 times with a sand mill until the pigment particle diameter D97 is below 5 um.
Example 4
The aqueous blue colorant of this example was formulated as follows in mass fractions:
acrylic acid modified maleic anhydride dispersant: 5 percent;
isomeric alcohol polyoxyethylene ether wetting agent: 6 percent;
pure water: 50.7 percent;
defoaming agent: 0.3 percent;
phthalocyanine blue 15: 3: 40 percent.
Sequentially putting a dispersing agent, a wetting agent, pure water and a defoaming agent into a stirring kettle, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min; adding phthalocyanine blue 15: 3, putting the mixture into a stirring kettle, and stirring the mixture for 1 hour at the rotating speed of a dispersion machine of 1500 r/min; grinding for 2-3 times with a sand mill until the pigment particle diameter D97 is below 5 um.
The technical indexes achieved by the embodiment of the invention are as follows:
1. pigment particle size: d975 um or less;
2. environmental protection performance: EU (european union) heavy metals 6 projects: pb + Cd + Hg + Cr + PBB + PBDE <100 PPM;
3. heat resistance: heating at 180 deg.C for 5min to prevent discoloration;
4. weather resistance: QUV ultraviolet aging test for one week to reach grade 7-8;
5. alkali resistance: soaking in 10% sodium hydroxide solution at 85 deg.C for 2 hr, and comparing the color difference with standard gray card, and the color difference is above grade 4.
6. Dry and wet rubbing fastness of microfiber leather: rubbing color fastness instrument, 10N, make 10 round trips, color fading contrast standard gray card, more than grade 4.
7. Storage stability: stored at 60 ℃ for 1 week and has a particle size of D975 um or less.
Claims (3)
1. The aqueous alkali-deweighting microfiber colorant is characterized by being prepared from a dispersing agent, a wetting agent, an organic pigment, pure water and an antifoaming agent; wherein, the mass percent of the dispersant is 2-5%, and the mass percent of the wetting agent is 5-8%; 35-40% of pigment, 50-55% of pure water and 0.2-0.5% of defoaming agent;
the dispersant is an acrylic acid modified maleic anhydride dispersant; the wetting agent is isomeric alcohol polyoxyethylene ether; the organic pigment is phthalocyanine blue 15: 3. pigment red 254, furnace high pigment carbon black p.bl.6 or pigment yellow 83; the defoaming agent is an organic silicon defoaming agent.
2. The aqueous alkali-deweighted microfiber colorant according to claim 1, wherein said colorant is prepared by the following method:
(1) adding a wetting agent, a dispersing agent, a defoaming agent and water into a stirring kettle in sequence, and stirring for 10min at the rotating speed of a dispersion machine of 500 r/min;
(2) adding organic pigment, and stirring at 1500r/min for 1 h;
(3) adding the mixture obtained in the step (2) into a sand mill for grinding for 2-3 times, wherein the particle size D97 of the pigment is less than 5 um;
(4) and (4) adding the mixture obtained in the step (3) into a blending kettle for blending, detecting and packaging.
3. The aqueous alkali-reduced microfiber colorant according to claim 2, wherein said sand mill is a 5mm zirconium bead sand mill.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111214786.3A CN113818262A (en) | 2021-10-19 | 2021-10-19 | Aqueous alkali-decrement microfiber colorant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111214786.3A CN113818262A (en) | 2021-10-19 | 2021-10-19 | Aqueous alkali-decrement microfiber colorant and preparation method thereof |
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| CN202111214786.3A Pending CN113818262A (en) | 2021-10-19 | 2021-10-19 | Aqueous alkali-decrement microfiber colorant and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323725A (en) * | 2008-07-24 | 2008-12-17 | 京东方科技集团股份有限公司 | Coating, printing ink, colorant and methods for preparing the same |
| CN103233394A (en) * | 2013-05-13 | 2013-08-07 | 浙江传化华洋化工有限公司 | Pigment color paste for on-line color mixing, surface sizing and coating of culture paper pulp and preparation method thereof |
| CN103709834A (en) * | 2013-12-20 | 2014-04-09 | 苏州世名科技股份有限公司 | Phthalocyanine pigment water-based color paste for coloring synthetic leather and preparation method thereof |
| CN111607296A (en) * | 2020-06-02 | 2020-09-01 | 上海金狮化工有限公司 | Functional graphene modified water-based leather color paste and preparation method thereof |
-
2021
- 2021-10-19 CN CN202111214786.3A patent/CN113818262A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323725A (en) * | 2008-07-24 | 2008-12-17 | 京东方科技集团股份有限公司 | Coating, printing ink, colorant and methods for preparing the same |
| CN103233394A (en) * | 2013-05-13 | 2013-08-07 | 浙江传化华洋化工有限公司 | Pigment color paste for on-line color mixing, surface sizing and coating of culture paper pulp and preparation method thereof |
| CN103709834A (en) * | 2013-12-20 | 2014-04-09 | 苏州世名科技股份有限公司 | Phthalocyanine pigment water-based color paste for coloring synthetic leather and preparation method thereof |
| CN111607296A (en) * | 2020-06-02 | 2020-09-01 | 上海金狮化工有限公司 | Functional graphene modified water-based leather color paste and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 敖明等: ""丙烯酸-马来酸酐共聚物的合成研究"" * |
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