CN114645466A - Preparation method of environment-friendly coating product easy to absorb ink - Google Patents
Preparation method of environment-friendly coating product easy to absorb ink Download PDFInfo
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- CN114645466A CN114645466A CN202210313722.7A CN202210313722A CN114645466A CN 114645466 A CN114645466 A CN 114645466A CN 202210313722 A CN202210313722 A CN 202210313722A CN 114645466 A CN114645466 A CN 114645466A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000004952 Polyamide Substances 0.000 claims abstract description 76
- 229920002647 polyamide Polymers 0.000 claims abstract description 76
- 238000003756 stirring Methods 0.000 claims abstract description 73
- 239000011259 mixed solution Substances 0.000 claims abstract description 48
- 239000004744 fabric Substances 0.000 claims abstract description 43
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 23
- 229920000570 polyether Polymers 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- 239000006255 coating slurry Substances 0.000 claims abstract description 17
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 238000009998 heat setting Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- 239000008234 soft water Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000004753 textile Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 28
- 238000007493 shaping process Methods 0.000 description 8
- 239000005909 Kieselgur Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QSLUWZMIMXNLJV-UHFFFAOYSA-L calcium methanol dichloride Chemical compound [Cl-].[Cl-].[Ca+2].OC QSLUWZMIMXNLJV-UHFFFAOYSA-L 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/125—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyamides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0034—Polyamide fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/126—Permeability to liquids, absorption
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention belongs to the field of textile processing, and relates to a preparation method of an environment-friendly coating product easy to absorb ink, which comprises the following steps: s1, heating and stirring 90-110 parts of anhydrous methanol and 18-22 parts of diatomite at 50-70 ℃ to obtain a mixed solution A, wherein the heating and stirring time is 10-20 min; s2, slowly adding 25-40 parts of anhydrous calcium chloride into the mixed solution A while stirring, and stopping stirring after the reaction is completed to obtain a mixed solution B; s3, adding 12-22 parts of cut waste polyamide fibers into the mixed solution B, stirring for 60-120 min after the waste fibers are completely dissolved, and cooling to a proper temperature to obtain a mixed solution C; s4, adding 1.5-3.0 parts of polyether into the mixed solution C, and stirring for 20-35 min to obtain coating slurry. S5, carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the S4, putting the polyamide base fabric into a water bath for solidification for 60-100S, taking out the polyamide base fabric, and carrying out setting for 60-90S in a continuous heat setting machine at the temperature of 140-170 ℃ to prepare the polyamide coated fabric with excellent ink absorption.
Description
Technical Field
The invention belongs to the field of textile processing, and relates to a preparation method of an environment-friendly coating product easy to absorb ink.
Background
Diatomite is a siliceous mineral rock formed by piling remains of diatom unicellular organisms under natural conditions for a long time, is widely distributed in China, is mainly composed of SiO2, has the characteristics of being porous and light, strong in water absorption, large in specific surface area, stable in chemical property and the like, and is commonly used in industries such as artificial leather industry, coating and paint industry, plastic products, building heat preservation and the like.
At present, scholars at home and abroad carry out a great deal of research and reports on the application of diatomite, for example, the diatomite is modified and researched in Chinese patent CN201210407745.0, so that the diatomite has the characteristics of high whiteness, small tap density, high strength and the like, and has good heat preservation and adsorption properties, and the diatomite is applied to indoor decorative materials, so that the diatomite does not volatilize harmful gases, and is safer and more environment-friendly; in the literature (Yulien, Qianzhu. organic modified diatomite filler preparation and application research [ J ]. silicate report, 2015,34, 2598-; the application research of calcined diatomite in paper coating [ J ] paper making science and technology, 2014,33,55-59) utilizes diatomite to partially replace heavy calcium carbonate modification and is applied to paper coating, and as a result, the diatomite is found to be capable of increasing the dry napping strength of coated paper, improving the K & N ink absorptivity and improving the ink absorption rate when the consumption is larger.
Currently, calcium carbonate, kaolin and the like are commonly used as fillers in a polyamide wet coating technology to achieve the effects of reducing cost, improving whiteness, improving stability and the like, but when calcium carbonate is used as a filler, the problems of high pH value, poor ink absorption and the like of an obtained coating product exist, so that the printing speed and the printing effect are influenced; when kaolin is used as a coating filler, the problems of unstable ink absorbability and printing performance of a polyamide coating product exist, and researches show that the diatomite has the characteristics of porosity, high specific surface area, neutral pH value and the like, so that the surface holes of a polyamide wet coating film prepared by the diatomite are increased, the absorption performance of the obtained product on printing ink is improved, the pH value of the coating product is reduced, an extract liquid obtained in the pH value detection process is neutral, the environment-friendly requirement of textiles is better met, and the researches on applying the diatomite to the polyamide wet coating product at home and abroad for improving the ink absorbability and the pH value are rarely reported at present.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention aims to provide a preparation method of an environment-friendly coating product easy to absorb ink, and solves the problems of poor ink absorption, high pH value and the like of a polyamide wet coating product in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the environment-friendly coating product easy to absorb ink is characterized by comprising the following steps of:
s1, heating and stirring 90-110 parts of anhydrous methanol and 18-22 parts of diatomite at 50-70 ℃ to obtain a mixed solution A, wherein the heating and stirring time is 10-20 min;
s2, slowly adding 25-40 parts of anhydrous calcium chloride into the mixed solution A while stirring, and stopping stirring after the reaction is completed to obtain a mixed solution B;
s3, adding 12-22 parts of cut waste polyamide fibers into the mixed solution B, stirring for 60-120 min after the waste fibers are completely dissolved, and cooling to a proper temperature to obtain a mixed solution C;
s4, adding 1.5-3.0 parts of polyether into the mixed solution C, and stirring for 20-35 min to obtain coating slurry.
And S5, carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the S4, putting the polyamide base fabric into a water bath, solidifying for 60-100S, taking out, and carrying out shaping for 60-90S in a continuous heat-shaping machine at the temperature of 140-170 ℃ to obtain the polyamide coated fabric.
Preferably, the purity of the anhydrous methanol is 99%.
Preferably, the diatomite is white diatomite powder with the specification of 1000-3000 meshes.
Preferably, the viscosity of the polyether is 800 to 1000 Pa.s.
Preferably, the anhydrous calcium chloride is powdery and has a specification of 1000-3000 meshes.
Preferably, the temperature is raised to 100 ℃ after the polyamide waste filaments are added in the step S3, the polyamide waste filaments are stirred after being completely dissolved, the stirring speed is 600 r/min, the stirring time is 60-120 min, and the temperature is reduced to 50 ℃ after the stirring is finished.
Preferably, the polyether addition process in S4 is: adding 0.5 part of polyether into the mixed solution C, stirring for 5 minutes, adding 0.5 part of polyether into the mixed solution C, and stirring for 5 minutes.
Preferably, the preparation method of the diatomite comprises the following steps:
s1, pretreatment of diatomite: fully cutting the particle size of raw ore of diatomite by a particle size cutting machine, screening the cut diatomite in an electromagnetic screening instrument, and screening out diatomite powder with the particle size of 1000-3000 meshes;
s2, washing: placing the diatomite powder in soft water, stirring for 30min, and soaking in soft water for 120min after stirring;
s3, ultrasonic oscillation and filtration: placing the washed mixed solution into an ultrasonic machine for oscillation for 3 hours, immediately placing the mixed solution into a filter for filtration after oscillation is finished, and setting the filtration holes on the filter to be not more than 3000 meshes;
s4, modification treatment: adding dimethyl diallyl ammonium chloride and magnesium oxide into the filtered mixed solution, fully stirring and uniformly mixing after adding, and then calcining at high temperature of 1000-1300 ℃ for 3h to obtain modified diatomite powder;
s5, storage: the modified diatomaceous earth powder was collected in a sealed container, which was placed in a dry environment.
Preferably, the mixed solution (g) is dimethyldiallylammonium chloride (g): the ratio of magnesium oxide (g) was 10:3: 1.
Preferably, the container and the diatomite powder contained in the container in the step S5 are fixed in a centrifuge and rotated at a high speed, wherein the rotation speed of the centrifuge is 5000 rpm, and the rotation time is 1 h.
(III) advantageous effects
The invention provides a preparation method of an environment-friendly coating product easy to absorb ink, which is obtained by fully dissolving industrial waste polyamide silk in a methanol-calcium chloride system, adding diatomite with a porous structure to prepare slurry, and coating the slurry on a polyamide substrate by a wet process.
Drawings
FIG. 1 is an electron microscope image of 1250 mesh diatomaceous earth polyamide wet-coated film prepared in example 3 of the present invention.
FIG. 2 is an electron microscope image of a 2800 mesh diatomaceous earth polyamide wet-coated film prepared in accordance with example 3 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the present invention, all parts are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art.
The invention provides a technical scheme that: the preparation method of the environment-friendly coating product easy to absorb ink is characterized by comprising the following steps of: s1, heating and stirring 90-110 parts of anhydrous methanol and 18-22 parts of diatomite at 50-70 ℃ to obtain a mixed solution A, wherein the heating and stirring time is 10-20 min; s2, slowly adding 25-40 parts of anhydrous calcium chloride into the mixed solution A while stirring, and stopping stirring after the reaction is completed to obtain a mixed solution B; s3, adding 12-22 parts of cut waste polyamide fibers into the mixed solution B, stirring for 60-120 min after the waste fibers are completely dissolved, and cooling to a proper temperature to obtain a mixed solution C; s4, adding 1.5-3.0 parts of polyether into the mixed solution C, and stirring for 20-35 min to obtain coating slurry. S5, carrying out double-sided wet coating on polyamide base cloth by using the coating slurry prepared in S4, putting the polyamide base cloth into a water bath for solidification for 60-100S, taking out the polyamide base cloth, and carrying out setting for 60-90S in a continuous heat setting machine at 140-170 ℃ to prepare the polyamide coated fabric.
The purity of the absolute methanol is 99%, and the methanol with the purity has better solubility for the diatomite and plays a role of washing the diatomite to change the diatomite into a neutral solution.
The diatomite is white diatomite powder with the specification of 1000-3000 meshes, and the diatomite with the specification is easy to process and obtain on one hand and convenient to dissolve on the other hand.
The viscosity of the polyether is 800-1000 Pa.s, and the polyether in the viscosity range plays a good defoaming role and also plays a good dispersing and emulsifying role.
The anhydrous calcium chloride is powdery, the specification of the anhydrous calcium chloride is 1000-3000 meshes, and the anhydrous calcium chloride is matched with the diatomite powder and is convenient to dissolve and mix.
And S3, adding the waste polyamide filament, raising the temperature to 100 ℃, stirring after the waste polyamide filament is completely dissolved, wherein the stirring speed is 600 revolutions per minute, the stirring time is 60-120 min, and the temperature is reduced to 50 ℃ after the stirring is finished, so that the waste polyamide filament can be more completely and quickly dissolved.
The process of adding polyether in S4 is as follows: firstly adding 0.5 part of polyether into the mixed solution C, stirring for 5 minutes, then adding 0.5 part of polyether into the mixed solution C, stirring for 5 minutes, not only playing a good stirring role through the step-by-step mode, but also well eliminating bubbles generated in the stirring process step by step, and having a better bubble eliminating effect.
The preparation method of the diatomite comprises the following steps: s1, pretreatment of diatomite: fully cutting the particle size of raw ore of diatomite by a particle size cutting machine, screening the cut diatomite in an electromagnetic screening instrument, and screening out diatomite powder with the particle size of 1000-3000 meshes; s2, washing: placing the diatomite powder in soft water, stirring for 30min, and soaking in soft water for 120min after stirring; s3, ultrasonic oscillation and filtration: placing the washed mixed solution into an ultrasonic machine for oscillation for 3 hours, immediately placing the mixed solution into a filter for filtration after oscillation is finished, and setting the filtration holes on the filter to be not more than 3000 meshes; s4, modification treatment: adding dimethyl diallyl ammonium chloride and magnesium oxide into the filtered mixed solution, fully stirring and uniformly mixing after adding, and then calcining at high temperature of 1000-1300 ℃ for 3h to obtain modified diatomite powder; s5, storage: collecting the modified diatomite powder in a sealed container, placing the container in a dry environment, and manufacturing the diatomite to be coated by a special process, wherein in the step S1, the diatomite powder meeting the particle size requirement is screened out by an electromagnetic screening instrument, and the particle size of the diatomite powder is strictly controlled; in the step S2, washing and infiltrating the sieved diatomite powder in soft water to make the diatomite powder washed neutral; in the step S3, the solution is vibrated more uniformly by ultrasonic vibration and filtration, meanwhile, impurities attached to the diatomite are vibrated to be loosened so as to be separated from the diatomite, and then the vibrated impurities are filtered by a filter, so that a good impurity removal effect is achieved; in the step S4, the added dimethyldiallylammonium chloride and magnesium oxide can further improve the performance of the diatomite, so that the ink absorption performance is greatly improved, and the ink absorption capacity is also greatly improved.
Mixed solution (g) of dimethyldiallylammonium chloride (g): the ratio of magnesium oxide (g) was 10:3:1, which is the ratio at which the resulting diatomaceous earth had the best ink receptivity and ink receptivity.
The container and the diatomaceous earth powder contained in the container in step S5 were fixed in a centrifuge and rotated at a high speed, wherein the rotation speed of the centrifuge was 5000 rpm and the rotation time was 1 hour, so that the diatomaceous earth powder was further sufficiently mixed, and thus the coating properties obtained at the time of preparing the coating were optimal.
Example 1:
s1: heating and stirring 100 parts of anhydrous methanol and 18 parts of diatomite at 50 ℃, slowly adding 30 parts of anhydrous calcium chloride after 15min, and stopping stirring after the reaction is completed. Adding 20 parts of cut and crushed waste polyamide filaments into the mixed solution, stirring for 60min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 1.5 parts of polyether, stirring for 30min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath for solidification for 60s, taking out the polyamide base fabric, and carrying out setting for 70s in a continuous heat setting machine at the temperature of 145 ℃ to obtain the polyamide coated fabric.
Example 2:
s1: 110 parts of anhydrous methanol and 22 parts of diatomite are heated and stirred at the temperature of 55 ℃, 35 parts of anhydrous calcium chloride is slowly added after 20min, and the stirring is stopped after the reaction is completed. Adding 16 parts of cut and crushed waste polyamide filaments into the mixed solution, stirring for 70min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 1.5 parts of polyether, stirring for 35min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath for solidification for 90s, taking out the polyamide base fabric, and carrying out 90s shaping in a continuous heat shaping machine at 165 ℃ to obtain the polyamide coated fabric.
Example 3:
s1: 100 parts of anhydrous methanol and 22 parts of diatomite are heated and stirred at 65 ℃, 35 parts of anhydrous calcium chloride is slowly added after 20min, and the stirring is stopped after the reaction is completed. Adding 18 parts of cut and crushed waste polyamide filaments into the mixed solution, stirring for 80min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 3.0 parts of polyether, stirring for 25min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath for solidification for 90s, taking out the polyamide base fabric, and carrying out 90s shaping in a continuous heat shaping machine at 165 ℃ to obtain the polyamide coated fabric.
Example 4:
s1: heating and stirring 90 parts of anhydrous methanol and 20 parts of diatomite at 60 ℃, slowly adding 40 parts of anhydrous calcium chloride after 20min, and stopping stirring after the reaction is completed. Adding 16 parts of sheared waste polyamide filaments into the mixed solution, stirring for 100min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 2.3 parts of polyether, stirring for 30min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath, solidifying for 80s, taking out, and carrying out shaping for 65s in a continuous heat-shaping machine at 165 ℃ to obtain the polyamide coated fabric.
Example 5:
s1: heating and stirring 100 parts of anhydrous methanol and 18 parts of diatomite at 65 ℃, slowly adding 40 parts of anhydrous calcium chloride after 20min, and stopping stirring after the reaction is completed. Adding 22 parts of cut and crushed waste polyamide filaments into the mixed solution, stirring for 120min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 3.0 parts of polyether, stirring for 20min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath for solidification for 100s, taking out the polyamide base fabric, and carrying out 90s setting in a continuous heat setting machine at the temperature of 140 ℃ to obtain the polyamide coated fabric.
Example 6:
s1: heating and stirring 90 parts of anhydrous methanol and 18 parts of diatomite at 70 ℃, slowly adding 25 parts of anhydrous calcium chloride after 10min, and stopping stirring after the reaction is completed. Adding 22 parts of cut and crushed waste polyamide filaments into the mixed solution, stirring for 70min after the waste filaments are completely dissolved, cooling to a proper temperature, adding 2.0 parts of polyether, stirring for 35min, and taking out for later use.
S2: and (2) carrying out double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the step (1), putting the polyamide base fabric into a water bath for solidification for 85s, taking out the polyamide base fabric, and carrying out setting for 60s in a continuous heat setting machine at 170 ℃ to obtain the polyamide coated fabric.
Application example 1
The coating slurry prepared in example 3 was coated on both sides on a polyamide substrate, coagulated in a water bath, and baked at 175 ℃ for 75 seconds to prepare a polyamide coated product. The properties of the prepared polyamide coating products were tested, and the results are shown in table 1.
[ note ] to
(1) The surface topography test is to observe the surface topography of the polyamide wet coating film by using a JSM-5610LV type scanning electron microscope of Japanese Electron (JEOL), and the magnification is 1000 times.
(2) The viscosity test of the coating slurry is to measure the polyamide coating slurry by adopting an MCR52 type rotational rheometer, measure 50 viscosity values under the conditions that the shear rate gamma is constant at 50s < -1 > at the normal temperature of 25 ℃, and take the average value.
(3) Reference GB/T7573-2009 Pair for pH value test
(4) The coating film contact angle test is to drop a drop of ink (3 mul per drop) on the surface of the polyamide coating film, test the contact angle of the ink on the surface of the polyamide coating film, test each sample five times, and take the average value.
(5) The ink mark length refers to that the polyamide coating fabric is cut into a coating cloth sample with the thickness of 15cm multiplied by 4cm and is placed in a constant temperature and humidity box (35 ℃ plus or minus 2 ℃, 65% + orminus 2% RH) to balance for 3 hours. The polyamide coated fabric was then removed and secured with a clamp to a rectangular wooden frame with a needle board. After a drop of ink (3 mul each) was applied to the surface of the polyamide coated fabric, the rectangular wooden frame was quickly placed vertically in a constant temperature and humidity cabinet, the length of the ink on the polyamide coated fabric was measured after 3 hours, each sample was measured five times, and a smaller value on the average indicated better ink absorption.
A large number of experiments show that when the diatomite is used as the coating filler, the prepared coating product has excellent ink absorption and meets the environmental protection requirement. As can be seen from table 1, 2800 mesh diatomaceous earth produced polyamide coated film inks with lower contact angles, shorter ink length, and pH less than 7.5 relative to 1250 mesh diatomaceous earth coated products; further comparing with fig. 1 and 2, it can be seen that the coating film prepared from the 2800 mesh diatomite has a flat surface and more uniform and compact hole distribution, which indicates that the coating product prepared from the 2800 mesh diatomite has stronger ink absorption capacity and better ink absorption, and better meets the environmental protection requirements for textiles.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The preparation method of the environment-friendly coating product easy to absorb ink is characterized by comprising the following steps of:
s1, heating and stirring 90-110 parts of anhydrous methanol and 18-22 parts of diatomite at 50-70 ℃ to obtain a mixed solution A, wherein the heating and stirring time is 10-20 min;
s2, slowly adding 25-40 parts of anhydrous calcium chloride into the mixed solution A while stirring, and stopping stirring after the reaction is completed to obtain a mixed solution B;
s3, adding 12-22 parts of cut waste polyamide fibers into the mixed solution B, stirring for 60-120 min after the waste fibers are completely dissolved, and cooling to a proper temperature to obtain a mixed solution C;
s4, adding 1.5-3.0 parts of polyether into the mixed solution C, and stirring for 20-35 min to obtain coating slurry.
And S5, performing double-sided wet coating on the polyamide base fabric by using the coating slurry prepared in the S4, putting the polyamide base fabric into a water bath for solidification for 60-100S, taking out the polyamide base fabric, and performing setting for 60-90S in a continuous heat setting machine at the temperature of 140-170 ℃ to obtain the polyamide coated fabric.
2. The method for preparing the environment-friendly coating product easy to absorb ink as claimed in claim 1, wherein the purity of the anhydrous methanol is 99%.
3. The method for preparing the environment-friendly easy-ink-absorption coating product according to claim 1, wherein the diatomite is white diatomite powder with the specification of 1000-3000 meshes.
4. The method for preparing the environment-friendly coating product with easy ink absorption as claimed in claim 1, wherein the viscosity of the polyether is 800-1000 cps.
5. The method for preparing the environment-friendly easy-ink-absorption coating product as claimed in claim 1, wherein the anhydrous calcium chloride is in a powder form, and the specification of the anhydrous calcium chloride is 1000-3000 meshes.
6. The method for preparing the environment-friendly coating product easy to absorb ink according to claim 1, wherein the temperature of the waste polyamide filament added in the step S3 is raised to 100 ℃, the waste polyamide filament is stirred after being completely dissolved, the stirring speed is 600 rpm, the stirring time is 60-120 min, and the temperature is reduced to 50 ℃ after the stirring is finished.
7. The method for preparing the environment-friendly coating product easy to absorb ink according to claim 1, wherein the polyether is added in the step S4 by the following steps: adding 0.5 part of polyether into the mixed solution C, stirring for 5 minutes, adding 0.5 part of polyether into the mixed solution C, and stirring for 5 minutes.
8. The method for preparing the environment-friendly easy-ink-absorption coating product according to claim 1, wherein the diatomite is prepared by the following steps:
s1, pretreatment of diatomite: fully cutting the particle size of raw ore of the diatomite through a particle size cutting machine, putting the cut diatomite into an electromagnetic screening instrument for screening, and screening out diatomite powder with the particle size of 1000-3000 meshes;
s2, washing: placing the diatomite powder in soft water, stirring for 30min, and soaking in soft water for 120min after stirring;
s3, ultrasonic oscillation and filtration: placing the washed mixed solution into an ultrasonic machine for oscillation for 3 hours, immediately placing the mixed solution into a filter for filtration after oscillation is finished, and setting the filtration holes on the filter to be not more than 3000 meshes;
s4, modification treatment: adding dimethyl diallyl ammonium chloride and magnesium oxide into the filtered mixed solution, fully stirring and uniformly mixing after adding, and then calcining at high temperature of 1000-1300 ℃ for 3h to obtain the modified diatomite powder.
S5, storage: the modified diatomaceous earth powder was collected in a sealed container, which was placed in a dry environment.
9. The method for preparing the environment-friendly easy-ink-absorption coating product according to claim 8, wherein the mixed solution (g) is dimethyl diallyl ammonium chloride (g): the ratio of magnesium oxide (g) was 10:3: 1.
10. The method for preparing an environment-friendly ink-receptive coating product according to claim 8, wherein the container of step S5 and the diatomite powder contained in the container are fixed in a centrifuge and rotated at a high speed, wherein the rotation speed of the centrifuge is 5000 rpm and the rotation time is 1 hour.
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