CN115678349B - Antibacterial, mildew-proof and deodorant white color paste and white coating digital ink - Google Patents
Antibacterial, mildew-proof and deodorant white color paste and white coating digital ink Download PDFInfo
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Abstract
The invention relates to an antibacterial, mildew-proof and deodorant white color paste and white paint digital ink, wherein the white color paste comprises the following components in percentage by weight: 10-50 parts of titanium dioxide, 1-15 parts of glycerol, 1-15 parts of ethylene glycol, 5-30 parts of styrene acrylic polymer dispersion resin, 1-15 parts of maleic acrylic polymer dispersion resin, 0.1-5 parts of polyoxyethylene ether type emulsifier, 1-10 parts of sulfonate type dispersing agent, 0.1-5 parts of barium sulfate, 0-3 parts of fluorescent whitening agent, 0.01-5 parts of graphene quantum dot and 10-40 parts of deionized water. The paint ink prepared from the white color paste has high whiteness and high stability, and patterns are formed on the fabric after spraying, so that the fabric has the advantages of antibiosis, mildew resistance and deodorization, and has excellent market application prospect.
Description
Technical Field
The invention relates to the technical field of paint ink, in particular to an antibacterial, mildew-proof and deodorant white color paste and white paint digital ink.
Background
Paint ink belongs to pigment ink, and is developed after being physically adhered to the surface of medium, such as copying paper, printing material, etc. through coloring agent or pigment. Paint inks are distinguished from dye inks in color development by the fact that they first penetrate into the interstices of the medium and precipitate, before color is formed.
The pigment ink has good chemical stability and optical stability, good water resistance and light resistance, high safety and high sharpness and density of color during printing. When larger pigment aggregates are subjected to ultraviolet light and ozone, only the surface layer is destroyed, and the colorant of the inner layer maintains the color property, so that the pigment has higher light fastness and weather fastness.
The dye of dye ink is directly exposed in air, so that under the action of light, ozone and the like, chemical chains of the dye and the dye are broken, the color of the dye is changed, and the like, so that a printing manuscript is faded, and the preservation performance of the printing manuscript is affected.
As a special water-based pigment ink, the paint ink is mainly used for direct-jet printing on cotton, hemp, cotton blending and other cloth materials; such as: silk screen printing with mucilage, digital printing, and the like. When the coating ink is applied to the inkjet printing of the fabric, the fabric is directly subjected to the inkjet printing without complex pretreatment and post-treatment processes, and then the fabric is simply baked, so that the coating ink has an application prospect in industry.
At present, the key point of the white paint ink is color paste, the stability of the white color paste is worse than that of other paint color varieties, and the main reason is that the raw materials for representing the white effect are mostly solid particles which are difficult to disperse uniformly, the raw materials are easy to settle in an aqueous system, and the components for enhancing the viscosity of the ink, such as a curing agent, resin and the like, are used in the paint ink, so that the stability index of the white paint ink becomes a key factor of success. The white color paste not only relates to the selection of functional components in the ink and influences the stability of the ink, but also has direct influence on the color development effect, color fastness and the like of the ink. In the prior art, most of white color paste is an outsourced imported product, which leads to the limitation of development of digital printing industry in China, and therefore, the exploration of high-quality white color paste is a requirement for industry development.
Disclosure of Invention
The invention aims to solve the problems of poor stability and low whiteness of the existing white paint ink, and provides an antibacterial, mildew-proof and deodorant white color paste which adopts titanium dioxide, barium sulfate, fluorescent whitening agent (optional) and the like to match, so that the whiteness of the color of the ink is improved, and the problem of titanium dioxide agglomeration is solved; the prepared color paste is not easy to precipitate by matching with the co-dispersing effect of styrene acrylic polymer dispersion resin, maleic acid acrylic polymer dispersion resin, sulfonate dispersant and the like, thereby laying a foundation for the stability of the ink.
A small amount of graphene quantum dots are added into the color paste, so that patterns formed by the ink have the advantages of antibiosis, mildew resistance and deodorization on the premise of not affecting the stability of the ink.
On the basis, the invention further develops white coating digital ink, and adopts the cooperation of glycerol, glycol and polar solvent to realize the good dispersion of the aqueous polyurethane copolymer and the aqueous closed curing agent, so that the raw materials of the whole formula are fused, and the adverse effect of the aqueous polyurethane copolymer and the aqueous closed curing agent on the suspension state of the color paste raw materials is avoided.
The specific scheme is as follows:
an antibacterial, mildew-proof and deodorant white color paste comprises the following components in percentage by weight:
further, the antibacterial, mildew-proof and deodorant white color paste comprises the following components in percentage by weight:
further, the titanium dioxide is rutile type or anatase type, and the particle diameter D 50 ＝100-500nm；
Optionally, the styrene acrylic polymer dispersion resin is any one of hounsfield TERSPERSE 2700 or 2610, solwe AN33, 25 or 44;
optionally, the maleic acid acrylic polymer dispersion resin is any one of Basoff Sokalan CP-5 or CP-9, BYK JET-9170 and BYK DIPERSANT-2015.
Further, the polyoxyethylene ether emulsifier is any one of isomeric alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether or laurinol polyoxyethylene ether;
optionally, the sulfonate dispersant is any one of isomeric alcohol polyoxyethylene ether sulfonate, fatty alcohol polyoxyethylene ether sulfonate or laurinol polyoxyethylene ether sulfonate;
optionally, the barium sulfate is nano-scale precipitated barium sulfate, preferably model AY-6300 or AY-F300;
optionally, the fluorescent whitening agent is of the type Henschel CF, basoff OB-1 or Craien KSN.
The invention also protects an antibacterial, mildew-proof and deodorant white paint digital ink, which comprises the white color paste and is characterized in that: comprises the following components in percentage by weight:
further, the antibacterial, mildew-proof and deodorant white paint digital ink comprises the following components in percentage by weight:
further, the polar solvent is at least one of 2-pyrrolidone, diethylene glycol butyl ether, N-methyl pyrrolidone, N-ethyl pyrrolidone, ethylene glycol methyl ether and propylene glycol methyl ether;
optionally, the aqueous polyurethane copolymer is three-well W-6110 polyurethane, bayer Acure502 or high-state chemical PU-1816;
optionally, the aqueous closed type curing agent is a closed type curing agent BL-2130;
optionally, the acid-base modifier is AMP-95;
optionally, the silane-based surfactant is a gas Dynol960 or 604.
The invention also provides a preparation method of the antibacterial, mildew-proof and deodorant white paint digital ink, which comprises the following steps:
preparing white color paste: weighing the raw materials according to the weight percentage, mixing, dispersing and stirring uniformly, then sending into a grinder for grinding, and then filtering to obtain the white color paste;
preparing white paint digital ink: weighing the raw materials according to the ink formula, mixing, dispersing and stirring uniformly, carrying out color matching treatment on the mixed liquid, and filtering after confirming that the color meets the requirement to obtain the white coating digital ink.
Further, in the process of preparing the white color paste, the rotation speed of dispersing and stirring is 1000-1500 rpm, the stirring time is 30-120 minutes, and then grinding is carried out, wherein the grinding time is 4-6 hours, and the grinding particle size is 300-500nm;
optionally, in the preparation of the white coating digital ink, the dispersing and stirring are carried out at a uniform rotating speed of 800-1200 r/min for 30-60 min, then the color matching treatment is carried out, the ink sample is taken to be scraped on a color matching card, and the color matching is carried out after the ink sample is placed and dried, and the color matching is carried out by a color matching instrument.
The invention also protects the application of the antibacterial, mildew-proof and deodorant white paint digital ink in textile printing and dyeing.
The beneficial effects are that:
the antibacterial, mildew-proof and deodorant white color paste is not easy to precipitate, and the prepared coating ink has the advantages of high whiteness, antibacterial, mildew-proof and deodorant properties, can avoid the problems of yellowing, speckling, easy falling off and the like of white patterns, can be widely applied to ready-made clothes, T-shirts, schoolbags, pen bags, cut pieces, pure cotton cloth, decorative cloth, wall cloth, curtains, carpets and other textile fabrics without steaming and washing, and has wide application prospects.
Detailed Description
Definitions of some of the terms used in the present invention are given below, and other unrecited terms have definitions and meanings well known in the art:
the white color paste comprises the following components in percentage by weight:
preferably, the antibacterial, mildew-proof and deodorant white color paste comprises the following components in percentage by weight:
more preferably, the antibacterial, mildew-proof and deodorant white color paste comprises the following components in percentage by weight:
among them, titanium dioxide is preferably rutile type or anatase type for improving stability of color paste and paint ink as a white pigment. For textiles which are illuminated outdoors for a long time, the rutile type is preferable to solve the problem of yellow white patterns and poor weather resistance. For textiles in non-outdoor settings, such as everyday intimate apparel, anatase is preferred to further enhance the whiteness of the pattern development.
Because titanium dioxide is solid particles insoluble in water, sedimentation is easy to occur, the stability of ink is seriously affected, a series of problems such as blockage and disconnection of a printing nozzle are caused, and the particle size D is adopted 50 Titanium dioxide of 100-500nm, so that the whiteness of the pattern meets the requirements. When the particle size is less than 100nm, the particles are transparent, which is unfavorable for the white color of the ink, and the sedimentation of the color paste and the ink is easy to occur when the particle size exceeds 500nm.
Selecting particle size D 50 Titanium dioxide of =100-500 nmBecause of the agglomeration problem of the nano effect, barium sulfate is introduced, and the barium sulfate is utilized to disperse titanium dioxide, so that the dispersing and anti-precipitation effects are achieved. Meanwhile, the barium sulfate is also a white material, can supplement color development, and is inserted between titanium dioxide to play a role in steric hindrance, so that the scattering rate of each titanium dioxide particle is improved, and the light covering power of the white pigment ink is increased.
Optionally, a fluorescent whitening agent is also added into the color paste to improve the color development effect, so that the patterns formed by the ink have a sparkling effect similar to that of fluorite.
The graphene quantum dots play an antibacterial role in the invention, and the dosage is 0.01-5% so as to ensure that whiteness of color paste and ink is not reduced.
The invention adopts the maleic acid acrylic polymer dispersion resin and the styrene acrylic polymer dispersion resin to match the dispersion requirements of solid particle raw materials such as titanium dioxide, barium sulfate, graphene quantum dots and the like, and the coating ink with higher stability is obtained.
In the invention, the white coating digital ink comprises the following components in percentage by weight:
preferably, the antibacterial, mildew-proof and deodorant white paint digital ink comprises the following components in percentage by weight:
more preferably, the antibacterial, mildew-proof and deodorant white paint digital ink comprises the following components in percentage by weight:
wherein the polar solvent is at least one of 2-pyrrolidone, diethylene glycol butyl ether, N-methyl pyrrolidone, N-ethyl pyrrolidone, ethylene glycol methyl ether and propylene glycol methyl ether. The polar solvent is used to disperse the vinyl chloride-acrylic acid ester copolymer and the water-based closed curing agent by matching with glycerol and glycol.
The aqueous polyurethane copolymer has an adhesive effect, plays an adhesive effect when the paint ink is combined with the fabric, adopts a polar solvent to combine with the high polymer dispersion resin in the color paste, and uniformly disperses the aqueous polyurethane copolymer in the ink.
In the invention, an acid-base regulator is adopted to regulate the pH value of the ink to 7.5-8.5, and the conventional acid-base reagent is preferably an AMP-95 acid-base regulator, so that the ink has better stability to a paint ink system.
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In the examples below, "%" refers to weight percent, unless explicitly stated otherwise.
The test methods used below included:
antibacterial test: the finished ink prints of the examples and comparative examples were sent to a testing facility (microorganism research, all of the company, guangzhou) and tested according to the standard, wherein:
A. antibacterial test criteria: evaluation of antimicrobial Properties of textiles in GB/T20944.3-2008 third part: the method comprises the following steps: 1. coli ATCC 25922; 2. staphylococcus aureus ATCC-6538; 3. candida albicans ATCC-10231
B. Anti-mite test standard: GB/T24253-2009 textile mite-proof performance evaluation 9.1 repellent method
C. Mildew proof test standard: GB/T24346-2009 mould proof property evaluation method for textile
Experimental strain: aspergillus niger ATCC16404, penicillium funiculosum ATCC10509, chaetomium globosum ATCC6205, trichoderma viride ATCC 28020.
Note that: the control sample is a 100% pure cotton cloth sample which is not subjected to any treatment, and is used as the control cloth sample after being steamed and cleaned at high temperature; the mite-proof effect evaluation requirement is as follows: more than or equal to 95 percent has extremely strong anti-mite effect; more than or equal to 80 percent has stronger anti-mite effect; more than or equal to 60 percent has the anti-mite effect.
The main reagents used below include:
titanium dioxide is DuPont rutile type, model R103, average grain diameter D 50 =200-300 nm. In other embodiments, anatase forms, such as, for example, henschel TR-88, may also be used.
The styrene acrylic polymer dispersion resin was hounsfield TERSPERSE 2700;
the maleic acid acrylic polymer dispersion resin is basf Sokalan CP-5;
the barium sulfate is nano-scale precipitated barium sulfate, and the model is AY-6300;
the fluorescent whitening agent is hounsmei CF;
the acid-base regulator is AMP-95;
the silane surfactant is gas Dynol 960;
the aqueous closed type curing agent is closed type curing agent BL-2130 (Guangzhou high-state chemical industry).
Examples 1 to 5
An antibacterial, mildew-proof and deodorant white paint digital ink comprises the following formula:
table 1 white paint digital ink composition table (weight percent)
Wherein the polar solvent used in examples 1-2 is 2-pyrrolidone and the polar solvent used in examples 3-5 is diethylene glycol butyl ether. Examples 1-2 used polyoxyethylene ether emulsifiers as fatty alcohol polyoxyethylene ether.
The polyoxyethylene ether type emulsifier used in examples 3-5 was the isomeric alcohol polyoxyethylene ether type.
The preparation method of the ink comprises the following steps:
preparing white color paste: weighing the raw materials according to the weight percentage in the table 2, mixing, dispersing and stirring uniformly, wherein the rotating speed is 1200 r/min, the stirring time is 60 minutes, then, conveying the raw materials into a grinder for grinding for 4-6 hours, the grinding particle size is 300-500nm, then, filtering by adopting PP filter paper with the precision of 1.0 mu m for the first time, and filtering by adopting PP filter paper with the precision of 0.5 mu m for the second time, thus obtaining the white color paste.
Table 2 white color paste composition table (weight percent)
Preparing white paint digital ink: weighing the raw materials according to the ink formula, mixing, dispersing and stirring uniformly at the rotating speed of 1000 rpm for 30 minutes, carrying out color matching treatment on the mixed liquid, and filtering after confirming that the color meets the requirement to obtain the white coating digital ink.
Comparative examples 1 to 4
Referring to example 2, a white paste was prepared, wherein the composition of the paste is shown in table 3, and the preparation method of the paste was the same as example 2.
Table 3 comparative examples 1-4 color paste composition (weight percent)
The prepared white paste was used for preparing paint ink, and the formula and preparation method of the paint ink were the same as in example 2, to obtain comparative paint inks 1 to 4.
Comparative example 5
A white paste was prepared by using example 2 to prepare a paint, except that an aqueous polyurethane copolymer was replaced with an equal mass of a vinyl chloride-acrylate copolymer, and the remaining raw materials were the same as in example 2, and comparative paint ink 5 was prepared in the same manner as in example 2.
Comparative example 6
A white paste was prepared using example 2, and a coating was prepared, except that equal mass of calcium carbonate was used instead of barium sulfate. Comparative coating ink 5 was prepared in the same manner as in example 2, except that the remaining raw materials were the same as in example 2.
Performance detection
(1) Physical and chemical properties
The coating inks prepared in examples and comparative examples were tested and the results are shown in Table 4.
Table 4 results table of physicochemical tests of paint and ink
(2) Direct-injection printing
The coating inks prepared in examples and comparative examples were applied to a cotton cloth by the following process:
firstly, performing direct-injection digital printing, and adopting a conventional direct-injection method; and then baking and fixing colors, wherein the temperature is 100 ℃, and a finished product is obtained.
(3) Whiteness test
The paint inks prepared in the examples and the comparative examples are coated on a color chart, the paint inks are scraped and coated uniformly and then naturally dried, the brightness value of the white ink is tested by using a Alice color measuring device, the higher the L value is, the higher the whiteness of the white ink is (the comparison is carried out under the same solid content condition), and the result is shown as 5.
Table 5 whiteness test results table
(4) Antibacterial test
The antibacterial test was performed on the cloth printed by direct injection of the coating ink prepared in examples and comparative examples, and the antibacterial test results are shown in table 6.
Table 6 table of antibacterial test results
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The anti-mite test results are shown in Table 7.
Table 7 anti-mite test results table
| Sample of | Repellent rate (%) |
| Example 1 | 93.1 |
| Example 2 | 95.6 |
| Comparative example 4 | 5.3 |
The mildew-proof test results are shown in Table 8.
Table 8 mildew resistance test results table
Evaluation criteria:
the 0 level has no obvious mould growth under the magnifying glass;
the growth of the level 1 mould is rare or local, and the coverage area of the surface of the sample is less than 10%;
the coverage area of the level 2 on the surface of the sample is less than 30 percent (10% -30%);
the coverage area of the level 3 on the surface of the sample is less than 60 percent (30% -60%);
the coverage area of the grade 3 on the surface of the sample reaches or exceeds 60 percent.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (10)
1. An antibacterial, mildew-proof and deodorant white color paste is characterized in that: comprises the following components in percentage by weight:
titanium dioxide 10-50
Glycerol 1-15
Ethylene glycol 1-15
Styrene acrylic polymer dispersion resin 5-30
Maleic acid acrylic polymer dispersion resin 1-15
Polyoxyethylene ether emulsifier 0.1-5
Sulfonate dispersant 1-10
Barium sulfate 0.1-5
Fluorescent whitening agent 0-3
Graphene quantum dots 0.5-5
10-40 parts of deionized water;
the titanium dioxide is in a rutile type or an anatase type, and the particle size D50=100-500 nm.
2. The antibacterial, mildew-proof and deodorant white color paste according to claim 1, wherein: the antibacterial, mildew-proof and deodorant white color paste comprises the following components in percentage by weight:
titanium dioxide 20-45
Glycerol 2-6
Ethylene glycol 2-6
10-20 parts of styrene acrylic polymer dispersion resin
2-10 parts of maleic acid acrylic polymer dispersion resin
Polyoxyethylene ether emulsifier 1-3
Sulfonate dispersant 2-6
Barium sulfate 1-5
Fluorescent whitening agent 1-3
Graphene quantum dots 0.5-5
25-40 parts of deionized water.
3. The antibacterial, mildew-proof and deodorant white color paste according to claim 1, wherein: the maleic acid acrylic polymer dispersion resin is one of Pasteur Sokalan CP-5 or CP-9.
4. The antibacterial, mildew-proof and deodorant white color paste according to claim 1, wherein: the polyoxyethylene ether emulsifier is laurinol polyoxyethylene ether;
the sulfonate dispersant is laurinol polyoxyethylene ether sulfonate;
the barium sulfate is nano-scale precipitated barium sulfate, and the model is AY-6300 or AY-F300;
the fluorescent whitening agent is one of a Henschel CF type, a Basoff OB-1 type or a Clariant KSN type.
5. An antibacterial, mildew-proof and deodorant white digital ink comprising the white paste according to any one of claims 1 to 4, characterized in that: comprises the following components in percentage by weight:
white color paste 10-50
Glycerol 1-20
Ethylene glycol 1-20
Polar solvent 1-10
Aqueous polyurethane copolymer 5-30
0.1 to 6 portions of water-based closed curing agent
Acid-base regulator 0.01-0.5
Acetylenic diol surfactant 0.1-5
Silane surfactant 0.1-1
20-40 parts of water;
the polar solvent is at least one of 2-pyrrolidone, diethylene glycol butyl ether, N-methyl pyrrolidone, N-ethyl pyrrolidone, ethylene glycol methyl ether and propylene glycol methyl ether.
6. The antibacterial, mildew-proof, and odor-resistant white digital ink of claim 5, wherein: the antibacterial, mildew-proof and deodorant white digital ink comprises the following components in percentage by weight:
white color paste 15-40
Glycerol 5-16
Ethylene glycol 4-18
Polar solvent 2-10
Aqueous polyurethane copolymer 5-24
1-5 parts of aqueous closed curing agent
0.2 to 0.5 of acid-base regulator
Acetylenic diol surfactant 1-4
Silane surfactant 0.1-1
20-40 parts of water.
7. The antibacterial, mildew-proof, and odor-resistant white digital ink of claim 5, wherein: the aqueous polyurethane copolymer is three-well W-6110 polyurethane or Bayer Acure502;
the acid-base regulator is AMP-95;
the silane surfactant is gas Dynol960 or Dynol 604.
8. A method for preparing the antibacterial, mildew-proof and deodorant white digital ink according to any one of claims 5 to 7, which is characterized in that: the method comprises the following steps:
preparing white color paste: weighing the raw materials according to the weight percentage, mixing, dispersing and stirring uniformly, then sending into a grinder for grinding, and then filtering to obtain the white color paste;
white digital ink is prepared: weighing the raw materials according to the ink formula, mixing, dispersing and stirring uniformly, carrying out color matching treatment on the mixed liquid, and filtering after confirming that the color meets the requirement to obtain the white digital ink.
9. The method for preparing the antibacterial, mildew-proof and deodorant white digital ink according to claim 8, which is characterized in that: in the process of preparing the white color paste, the rotation speed of 1000-1500 rpm is adopted for dispersion and stirring, the stirring time is 30-120 minutes, and then grinding is carried out, wherein the grinding time is 4-6 hours, and the grinding particle size is 300-500nm;
in the preparation of the white digital ink, the rotation speed of the dispersion and stirring is 800-1200 r/min, the stirring time is 30-60 min, then the color matching treatment is carried out, the ink sample is taken to be scraped on a color card, the color matching is carried out after the ink sample is placed and dried, and the color matching is carried out by a color matching instrument.
10. Use of the antibacterial, mildew-proof, deodorant white digital ink of any one of claims 5-7 in textile printing.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679410A (en) * | 2018-12-21 | 2019-04-26 | 河北晨阳工贸集团有限公司 | A kind of waterborne general color paste and preparation method thereof |
| CN111058310A (en) * | 2019-12-25 | 2020-04-24 | 珠海市东昌颜料有限公司 | Water-based white ink and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679410A (en) * | 2018-12-21 | 2019-04-26 | 河北晨阳工贸集团有限公司 | A kind of waterborne general color paste and preparation method thereof |
| CN111058310A (en) * | 2019-12-25 | 2020-04-24 | 珠海市东昌颜料有限公司 | Water-based white ink and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 陈锋.《杂原子掺杂碳在重金属废水处理中的应用》.黄河水利出版社,2020,第44页. * |
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