CN111138910B

CN111138910B - Mineral water red paste, preparation method thereof and application thereof in textile

Info

Publication number: CN111138910B
Application number: CN202010024891.XA
Authority: CN
Inventors: 谈君婕; 纪俊玲; 汪媛; 陈群; 陈海群
Original assignee: Changzhou University
Current assignee: Changzhou Mysun Biological Materials Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2022-02-11
Anticipated expiration: 2040-01-10
Also published as: CN111138910A

Abstract

The invention belongs to the field of mineral dyes, and particularly relates to mineral water red paste, a preparation method thereof and application thereof in spinning. The mineral water-based red paste comprises the following raw materials: 4-7 parts of iron oxide red powder, 20-80 parts of distilled water, 1-3 parts of a dispersing agent and 0.5-1.5 parts of a thickening agent. The preparation method comprises the following steps: mixing iron oxide red powder, water and a half of dispersing agent, stirring uniformly, adding zirconia beads, placing in a high-speed sand mill for high-speed dispersion, continuously adding the other half of dispersing agent and thickening agent, increasing the speed, continuously grinding and dispersing, and grinding until the slurry is uniform, has no large-volume particles and is mineral water red paste with the average particle size of 600-700 nm. The mineral water red paste prepared by the invention has good particle uniformity and high stability, can be mixed with water in an infinite proportion, can be used for coloring outdoor equipment, bedding and the like, and has good tinting strength, health, greenness, economy and environmental protection.

Description

Mineral water red paste, preparation method thereof and application thereof in textile

Technical Field

The invention belongs to the field of mineral dyes, and particularly relates to a preparation method of mineral water red paste and application of the mineral water red paste to textiles.

Background

Although the synthetic dye has low price, the synthetic dye is not friendly to the environment, and partial synthetic dye intermediates are even carcinogenic. With the advocation of environmental protection and green concept in China and China, the natural dye returns to the sight of people again. Natural dyes are divided into vegetable dyes and mineral dyes. Mineral dyes have a long history of application in China, cinnabar, stone yellow and the like are not only used for painting pigments and pottery dyeing, but also are the countries which use stone dyeing to dye clothes at the earliest in the world. In addition, the identification of dyes and dyeing appliances in ancient sites shows that the technology of ore crushing, grinding and coating and dyeing is well mastered in ancient China.

The acceptance of plant dye garments, bedding and the like has become increasingly high. The use of mineral dyes for dyeing textiles is still silent. The reason is that there are few and few mineral dyes applied to fabric dyeing; mineral grinding techniques are complex and difficult to grind to particle sizes that can attach to the interior of the fabric fibers; and the small-particle mineral dye is easy to agglomerate and is easy to fade and have poor color. Leading to the fact that mineral dyes are currently used in many applications such as coatings, but are still difficult to apply to textiles. For example, CN201310014623.X A method for preparing a multipurpose iron oxide red aqueous color paste, which is used in architectural coatings, the color paste is ground at a low speed in the preparation process, a dispersant is a maleic anhydride styrene ammonium salt copolymer solution, the finished product has good dispersibility but the final particle size is less than or equal to 20 μm, and the color paste can play a role in covering and developing the color for the coatings, but can easily form an obvious dyeing color point for dyeing textiles, so the color paste cannot be used for dyeing textiles. According to the standard requirements of textiles in the market according to GB/T3920-. In the prior art of 'natural mineral pigment dyeing of pure cotton fabric, poplar group' and the like, fabric dyeing is carried out by using mineral dye dispersoid, and in order to improve the color fastness of pigment particles, textile fabrics need to be modified so that the modified textile fabrics react with the surfaces of the pigment particles. This operation is complicated and costly, and it is difficult to modify the fabric on a large scale in industrial operation. Besides uneven dyeing, the storage stability of the mineral dye is a problem, which has great influence on the application of the mineral dye. Because if it is stored poorly, problems such as delamination and large agglomeration of pigment particle diameters have occurred when it is used by a guest, resulting in that the mineral dye cannot be reused. In the "search for nanocrystallization of mineral pigments and dyeing of textiles", the dispersion stability of mineral pigments was investigated, and the resulting dispersion liquid exhibited a large particle size variation within 5 days, and the particle size variation thereof upon standing for a long time could not be predicted, and the dispersion stability of mineral pigments was poor, and even dispersion occurred after the particle size variation during storage. Therefore, the storage stability of mineral pigments is one of the problems to be solved urgently.

Therefore, the mineral water-based color paste which can be applied to textiles is developed, has good dispersion stability and has wide application prospect.

Disclosure of Invention

Aiming at the problems, the invention provides a preparation method of mineral water red paste and application of the mineral water red paste to textiles. By a mechanical grinding mode, the operation parameters are optimized, the particle size of the iron oxide red is greatly reduced and averaged, the color is improved, and the mineral water-based red paste for textiles is prepared.

The technical scheme adopted by the invention is as follows: a preparation method of mineral water red paste comprises the following steps:

the mineral water red paste comprises the following raw materials in parts by weight: 4-7 parts of iron oxide red powder, 20-80 parts of distilled water, 1-3 parts of a dispersing agent and 0.5-1.5 parts of a thickening agent.

(1) Mixing iron oxide red powder (10-40 mu m), distilled water and a half of dispersant by mass, and fully and uniformly stirring to obtain a mixed solution;

(2) putting the mixed solution obtained in the step (1) into a charging bucket of a high-speed sand mill, adding zirconia beads according to a certain ball-to-material ratio, adjusting the speed to 3000-3500 r/min, and grinding and dispersing at a high speed for 3-4 h, wherein the particle size of ferric oxide in the color paste is 1.4-1.8 mu m;

(3) and (3) adding the other half of dispersant and thickener into the slurry obtained in the step (2), adjusting the dispersion speed to 4000r/min, continuing to disperse at high speed for 2.5-4 h, and finishing grinding and dispersing to obtain the natural mineral water-based red paste with the average particle size of 600-700 nm.

Wherein, the dispersant in the steps (1) and (3) is: one of maleic anhydride-styrene copolymer, maleic anhydride-methyl acrylate polymer, NNO, PVP-K30, PVA, methyl cellulose and hydroxyethyl cellulose;

preferably, the dispersant is one selected from maleic anhydride-styrene copolymer, maleic anhydride-methyl acrylate polymer, methyl cellulose and hydroxyethyl cellulose; further preferred is a maleic anhydride-methyl acrylate polymer.

Wherein the zirconia beads in the step (2) are 95 zirconium beads with the diameter of 0.4-1.2 mm. Preferably, the adopted zirconium beads with the diameter of 0.6mm and 0.4mm are compounded and used in a mass ratio of 2: 3.

Further preferably, the ball-to-feed ratio in the step (2) is 10: 1-12: 1. The ball-to-material ratio of 10: 1-12: 1 is the optimal condition for a large amount of experimental screening treatment, and iron oxide red with expected particle size can be obtained better under the condition.

The dispersing agent needs to be added in two times during grinding, half of the dosage is added for the first time, the particle size of the ferric oxide in the semi-finished color paste obtained after grinding for 3-4 hours is about 1.4-1.8 mu m, the other half of the dosage is added, and the grinding is continued, wherein the particle size of the ferric oxide in the finished color paste is 600-700 nm.

Experiments prove that the dispersing agent is added twice during grinding. The dispersing agent can be fully and fully coated on the surfaces of iron oxide particles, the grinding is more sufficient, the particle size after grinding is 600-700nm, and the final dyeing has no color point. And the dispersant is added at one time, the particle size is 750 nm-850 nm after grinding under the condition of the same other conditions, and finally, the dyeing has a little color point. Wherein the average particle size is limited to 600-700nm, which is the preferable condition for a large number of experimental screening treatments, the particle size of the ferric oxide is less than 600nm, the ferric oxide is easy to agglomerate, the ferric oxide is difficult to reopen after agglomeration, and the storage stability is poor. If the iron oxide is larger than 700nm, coloring unevenness, more color spots, poor dyeing uniformity and poor storage stability may occur. Through detection, the prepared iron oxide with the particle size of 600-700nm is dyed, so that the dispersibility is good, the coloring power is high, the natural mineral water-based red paste is unchanged after being placed for 6 months at room temperature, and the particle size still shows 600-700nm through test.

The use method of the mineral water red paste prepared by the invention comprises the following steps: the mineral water-based red paste of 25-50 g/L and the adhesive of 25-50 g/L are uniformly stirred to prepare a padding liquid, the fabric (cotton, hemp, silk, wool and the like) is subjected to two-dip two-pad dyeing finishing, and the fabric with poor water absorption and thickness can be dyed by adopting a dip-padding method. The dyed fabric is laid in a forced air drying oven to be dried at 85 ℃ and then is baked at 120 ℃ for 50 s.

The adhesive may be one of conventional adhesives such as polyurethane, polystyrene, acrylate, etc., without being limited thereto.

The dyeing pulp can be used for dyeing cotton, hemp, silk, wool and the like, and pretreatment or modification is not needed before dyeing. Pouring the padding liquid into a mangle, and directly rolling the untreated fabric into a roller for dyeing; the fabric with poor water absorbability and thick water absorbability is soaked for 5-10 min according to different bath ratios, the solution is fully soaked, and then the fabric passes through a padder, and the mangle yield is 65-70%. Spreading in a blast drying oven for drying at 85 deg.C (for large-scale production, this step can be omitted), and shaping at 120 deg.C for 30-50 s. No other conditioning is required.

The advantages of the invention include:

(1) the method preferably obtains the iron oxide particle size of 600-700nm, the mineral water red paste has small particles and good stability, is not easy to agglomerate and settle and delaminate during storage, has high tinting strength and good water solubility, is economic, environment-friendly, green and healthy, and can be used in the fields of fabric tinting, architectural decoration, leather, papermaking and the like. The particles are more firmly adhered to the fabric and are not easy to fall off by combining the pressure fit adhesive between two rollers of a padder.

(2) The invention adopts mineral ferric oxide as raw material, is environment-friendly and has the characteristic of no skin irritation; the use method is simple, a large amount of water is not needed, a large amount of waste water is not generated, and labor is saved; the dye has good dyeing color, the iron oxide red belongs to metal oxide, is a mineral with good stability in nature, has good alkali resistance, weather resistance and sunlight resistance, is not easy to denature under strong sunlight and strong humidity, the color fastness to sunlight can reach 5 grades, and the color fastness to soaping can reach 4-5 grades.

(3) The dispersant is added in two times, so that the dispersant can be fully and completely coated on the surfaces of the iron oxide particles, the grinding is more sufficient, and the mineral water red paste particles obtained by final grinding have good uniformity, high stability and no color point in dyeing. And the pigment can be dissolved with water in an infinite proportion, can be used for coloring outdoor equipment, bedclothes and the like, and has the advantages of good coloring power, health, greenness, economy and environmental protection.

Drawings

Fig. 1 is an effect diagram of flax cloth dyed in example 1.

FIG. 2 is an effect diagram of the knitted cotton fabric of example 2 after dyeing.

FIG. 3 is an effect diagram of the dyed real silk fabric of example 3.

FIG. 4 is a graph showing the effect of the polyester fabric of comparative example 1 after dyeing.

FIG. 5 is a graph showing the effect of the dyeing slurry prepared in comparative example 2 after dyeing.

FIG. 6 is a graph showing the effect of the dyeing slurry prepared in comparative example 3 after dyeing.

FIG. 7 shows the dyed pulp of example 1 after standing for six months.

FIG. 8 shows the result of the standing of the dye of comparative example 3 for 0.5 h.

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the following examples, which are intended to be illustrative of the present invention and should not be construed as limiting the scope of the invention. The conditions in the examples are not specifically mentioned, and are selected according to the conventional conditions. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1

A preparation method of mineral water red paste comprises the following steps:

6 parts of iron oxide red powder with the particle size of 20 mu m, 60 parts of distilled water, 1.5 parts of a dispersing agent and 0.5 part of a thickening agent. Wherein the dispersant is maleic anhydride-methyl acrylate polymer (available from Liaoning Colon Fine chemical Co., Ltd.), and the thickener is hydroxymethyl cellulose.

According to the formula weight, iron oxide red powder, distilled water and half of dispersant by mass are stirred uniformly, zirconia beads (zirconium beads with the diameter of 0.6mm and zirconium beads with the diameter of 0.4mm are compounded in a mass ratio of 2: 3) are added according to a ball-to-material ratio of 12:1, the mixture is placed in a high-speed sand mill to be dispersed for 4 hours at a high speed of 3500r/min, and thickener and the other half of dispersant by mass are continuously added to the mixture to be dispersed for 2.5 hours at a speed of 4000 r/min. The ground slurry is uniform and has no large-volume particles, and the mineral water-based red paste is obtained.

The application process comprises the following steps: the usage amount of the mineral water-based red color paste is 30g/L, the usage amount of the adhesive (such as polyurethane) is 30g/L, the mineral water-based red color paste and the adhesive (such as polyurethane) are uniformly mixed by adding water, for example, 1L of dyeing paste contains 30g of the mineral water-based red color paste and 30g of the adhesive, the mixture is poured into a padder groove, flax upper garment cloth of a certain outdoor sport brand is put into the padder groove, the padder is used for soaking and secondary rolling are carried out after the 1:20 bath ratio of the dyeing paste is soaked, the mangler is laid at 90 ℃ and dried, and the padder is baked at 120 ℃ for 50s for shaping.

The picture after dyeing is shown in fig. 1, and as can be seen from fig. 1, the dyeing uniformity is good, and phenomena such as mottling, color spots and the like do not exist.

The dyeing K/S value is 1.2741, and the dyeing is uniform and the surface has no color spots. The dry milling fastness is 4-5 grade, and the wet milling fastness is 3-4 grade; soaping fastness white cloth is stained with 4-5 grades, and the original color is changed by 4 grades; the light fastness is grade 5. (detection standards: GB/T3920-

The slurry is uniform and has no large-volume particles, and the average particle size is 635 nm; standing for 6 months without layering, keeping the particle size of 635-650 nm, and dyeing the slurry after standing again to obtain the same effect as the above. FIG. 7 shows color paste obtained after standing for six months, which is good in stability. Is suitable for long-term storage.

Example 2

A preparation method of mineral water red paste comprises the following steps:

7 parts of iron oxide red powder with the particle size of 20 mu m, 70 parts of distilled water, 2 parts of a dispersing agent and 0.5 part of a thickening agent. Wherein the dispersant is maleic anhydride-methyl acrylate polymer (purchased from Liaoning Colon Fine chemical Co., Ltd.), and the thickener is hydroxymethyl cellulose.

Mixing iron oxide red powder, distilled water and half of dispersing agent according to the formula weight, uniformly stirring, adding zirconia beads according to a ball-to-material ratio of 12:1, placing the mixture in a high-speed sand mill, dispersing at a high speed of 3500r/min for 4h, continuously adding a thickening agent and the other half of dispersing agent, grinding and dispersing at a speed of 4000r/min for 3-4 h, and uniformly grinding the slurry without large-volume particles to obtain the mineral water-based red paste.

The application process comprises the following steps: the usage amount of the mineral water-based red color paste is 35g/L, the usage amount of the adhesive (such as polyurethane) is 25g/L, the mixture is uniform (the mineral water-based red color paste and the adhesive are uniformly mixed by adding water to prepare dyeing paste), the dyeing paste is poured into a rolling groove, four pieces of pure cotton bedding articles of a certain brand are soaked and rolled twice, the mangling rate is 70 percent, the product is spread and dried at 95 ℃, and the product is baked and dried at 130 ℃ for 40 seconds for shaping.

The picture after dyeing is shown in fig. 2, and as can be seen from fig. 2, the dyeing uniformity is good, and the phenomena of mottling, color spots and the like do not exist.

The dyeing K/S value is 1.3525, and the dyeing is uniform and the surface has no color spots. The dry milling fastness is 4-5 grade, and the wet milling fastness is 3-4 grade; soaping fastness white cloth is stained with 4-5 grades, and the original color is changed by 4 grades; the light fastness is grade 5. (the detection standards are GB/T3920-; standing for 6 months without layering, keeping the particle size of 620-630 nm, and dyeing the slurry after standing again to obtain the same effect as the above.

Example 3

A preparation method of mineral water red paste comprises the following steps: 6 parts of iron oxide red powder with the particle size of 20 mu m, 60 parts of distilled water, 1.8 parts of a dispersing agent and 0.5 part of a thickening agent. Wherein the dispersant is maleic anhydride-methyl acrylate polymer (purchased from Liaoning Colon Fine chemical Co., Ltd.), and the thickener is hydroxymethyl cellulose.

The preparation process comprises the following steps: mixing iron oxide red powder, water and half of dispersant according to the weight of the formula, uniformly stirring, adding zirconia beads according to a ball-to-material ratio of 11:1, placing the mixture in a high-speed sand mill, dispersing for 4 hours at a high speed of 3500r/min, adding a thickening agent and the other half of dispersant, grinding and dispersing for 3.5-4 hours at a speed of 4000r/min, and uniformly grinding the slurry without large particles to obtain the mineral water-based red paste.

The application process comprises the following steps: the mineral water-based red color paste is used in an amount of 30g/L, the adhesive (such as polyurethane) is used in an amount of 20g/L, the mixture is uniform (namely the mineral water-based red color paste and the adhesive are uniformly mixed by adding water to prepare dyeing paste), the real silk pajama skirt is soaked in water with a bath ratio of 1:10, the obtained real silk pajama skirt is taken out and passed through a padder, two-time soaking and two-time rolling, the dyed real silk pajama skirt is laid flat and dried at 80 ℃, and the ironing and finishing are carried out.

The picture after dyeing is shown in fig. 3, and it can be seen from fig. 3 that the dyeing uniformity is good, and the phenomena of mottling, color spots and the like do not exist.

The dyeing K/S value is 1.2301, and the dyeing is uniform and the surface has no color spots. The dry milling fastness is 4-5 grade, and the wet milling fastness is 3-4 grade; soaping fastness white cloth is stained with 4-5 grades, and the original color is changed by 4 grades; the light fastness is grade 5. (the detection standards are GB/T3920-; standing for 6 months without layering, keeping the particle size of 626-635 nm, and dyeing the slurry after standing again to obtain the same effect as the above.

Comparative example 1

Compared with the embodiment 3, the main difference of the comparative example 1 is that the real silk material is replaced by the terylene.

The preparation process comprises the following steps: mixing iron oxide red powder, water and half of dispersant by mass according to the weight of the formula, uniformly stirring, adding zirconia beads according to a ball-to-material ratio of 11:1, placing the mixture in a high-speed sand mill, dispersing for 4 hours at a high speed of 3500r/min, adding a thickening agent and the other half of dispersant by mass, dispersing for 3.5-4 hours at a speed of 4000r/min, and grinding until the slurry is uniform and has no large particles, thereby obtaining the mineral water-based red paste.

The application process comprises the following steps: the usage amount of the mineral water-based red paste is 30g/L, the usage amount of the adhesive (such as polyurethane) is 20g/L, the mineral water-based red paste and the adhesive are uniformly mixed by adding water to prepare dyeing paste, the polyester fabric is soaked, the bath ratio is 1:10, the polyester fabric is taken out and passes through a padder, the polyester fabric is soaked and rolled twice, the dyed polyester fabric is laid flat and dried at 80 ℃, and the polyester fabric is ironed and finished.

The dyeing K/S value is 0.1071, and the dyeing is uniform and the surface has no color spots. The dry milling fastness is 4-5 grade, and the wet milling fastness is 4-5 grade; soaping fastness white cloth is stained with 5 grades, and original color change is carried out with 4 grades; the light fastness is grade 5. (detection standards: GB/T3920-

FIG. 4 is a comparison of the polyester dyeing effect, the polyester fiber is lightly colored, and the dyeing K/S value is low. The prepared mineral water red color paste is not recommended to be used for dyeing synthetic fibers, and is more suitable for dyeing natural fibers such as flax, real silk and pure cotton fibers by direct pad dyeing, so that excellent dyeing effect can be achieved.

The attached description is as follows: the reason why the fastness data is slightly better than that of the examples is that the dyeing value of the comparative examples is low, the coloring is light, and the fading is difficult to be seen as compared with the original.

Comparative example 2

Comparative example 2 differs from example 1 mainly in that: the dyeing material is prepared by adopting the commercially available nano-scale iron oxide red (the grain diameter is 30nm when the nano-scale iron oxide red is packaged and sold).

6 parts of iron oxide red powder which is sold in the market and has the grain diameter of 30nm after being packaged, 60 parts of distilled water, 1.5 parts of dispersing agent and 0.5 part of thickening agent, wherein the dispersing agent is added in two times, and the mixture is dispersed and mixed evenly by ultrasound to prepare the color paste. Wherein the dispersant is maleic anhydride-methyl acrylate polymer (purchased from Liaoning Colon Fine chemical Co., Ltd.), and the thickener is hydroxymethyl cellulose.

The detection result shows that the iron oxide red with the particle size of 30nm is sold on the market. The prepared color paste is easy to precipitate and layer after being placed, standing is carried out for immediate layering, the lower layer of the supernatant is dark red and precipitates, and the uniform dispersion of the supernatant cannot be kept even by continuing ultrasound.

By adopting the padding method which is the same as that of the embodiment 2, the linen surface has obviously mottled color points (as shown in figure 5) after padding, the whole color is dark, and no obvious red color is shown in figure, so that the nano-scale iron oxide can not be directly used, and the fact that the iron oxide with small particle size is easy to agglomerate again after storage is also proved.

Comparative example 3

Compared with the embodiment 1, the mineral water red paste of the comparative example 3 has the same components, and the main difference is as follows: the raw material is commercial 600-700nm iron oxide red, and the components of the slurry are the same as those in example 1.

Mixing 600-700nm iron oxide red powder, distilled water, a dispersing agent and a thickening agent according to the weight of the formula, and performing ultrasonic dispersion for 10-30 min after mixing to obtain mineral slurry with the particle size of 600-700 nm.

The mineral slurry mixed with the same components is layered after standing for 0.5h, and is difficult to continue to be used after ultrasonic treatment, as shown in FIG. 8.

The same padding method as in example 1 was used, the dyeing K/S value was 0.4141, the K/S value was too small, the dyeing color was light, and there were distinct color dots at both ends of the cloth surface in the direction parallel to the rolling.

Comparative example 4

A preparation method of mineral water red paste comprises the following steps: 6 parts of iron oxide red powder with the particle size of 5 mu m, 60 parts of distilled water, 1.5 parts of a dispersing agent and 0.5 part of a thickening agent. Wherein the dispersant is maleic anhydride-methyl acrylate polymer (purchased from Liaoning Colon Fine chemical Co., Ltd.), and the thickener is hydroxymethyl cellulose.

Mixing iron oxide red powder, distilled water and half of dispersing agent according to the formula weight, uniformly stirring, adding zirconia beads according to the ball-to-material ratio of 12:1, placing the mixture in a high-speed sand mill, dispersing for 4 hours at a high speed of 3500r/min, continuously adding thickening agent and the other half of dispersing agent, and dispersing for 2.5 hours at a speed of 4000 r/min. And (3) taking 30g/L of the color paste obtained by grinding, adding 30g/L of aldehyde-free adhesive, and carrying out secondary soaking and secondary pad dyeing on the color flax.

The using amount of the mineral water-based red color paste is 30g/L, the using amount of the adhesive is 30g/L, the mixture is uniform (the mineral water-based red color paste and the adhesive are uniformly mixed by adding water to prepare dyeing paste), the flax upper garment cloth of a certain outdoor sport brand is put into the dyeing paste with the bath ratio of 1:20 for soaking, and then passes through a padder for two-soaking and two-rolling, the mangle ratio is 70%, the flax upper garment cloth is spread and dried at 90 ℃, and is baked at 120 ℃ for 50s for shaping.

The dyeing K/S value is 1.2812, and the dyeing is uniform and the surface has no color spots. The dry milling fastness is 4-5 grade, and the wet milling fastness is 3-4 grade; soaping fastness white cloth is stained with 4-5 grades, and the original color is changed by 4 grades; the light fastness is grade 5. (detection standards: GB/T3920-

The prepared slurry is uniform and has no large-volume particles, and the average particle size is 547 nm; the mineral water red paste is slightly layered after standing for 15 days, because a little agglomeration occurs at the moment, and the particle size reaches 790nm after detection. The layered color paste is then used for padding flax fabrics according to the method, and color points obviously appear.

Comparative example 5

A preparation method of mineral water red paste comprises the following steps: 6 parts of iron oxide red powder with the particle size of 60 mu m, 60 parts of distilled water, 1.5 parts of a dispersing agent and 0.5 part of a thickening agent.

Wherein the dispersant is maleic anhydride-methyl acrylate polymer (purchased from Liaoning Cologong fine chemical Co., Ltd.), and the thickener is: hydroxymethyl cellulose.

Mixing iron oxide red powder, distilled water and half of dispersing agent according to the formula weight, uniformly stirring, adding zirconia beads according to the ball-to-material ratio of 12:1, placing the mixture in a high-speed sand mill, dispersing for 4 hours at a high speed of 3500r/min, continuously adding thickening agent and the other half of dispersing agent, and dispersing for 2.5 hours at a speed of 4000 r/min. Grinding to obtain the mineral water-based red paste.

The using amount of the mineral water-based red color paste is 30g/L, the using amount of the adhesive is 20g/L, the mixture is uniform (the mineral water-based red color paste and the adhesive are uniformly mixed by adding water to prepare dyeing paste), a certain outdoor sport brand flax jacket fabric is placed into the dyeing paste with the bath ratio of 1:20 for soaking, passes through a padder after being soaked, is soaked for two times and is rolled for two times, the mangle solution rate is 70 percent, the flax jacket fabric is spread and dried at 90 ℃, and is baked at 120 ℃ for 50s for shaping.

The dyeing K/S value of the prepared sizing agent is 0.0812, and the surface is full of color points and basically cannot be colored.

The average particle size of the prepared slurry is 1.615 mu m, and the slurry can not be used continuously after standing for 24h and layering.

Comparative examples 6 to 9

Comparative examples 6 to 9 are different from example 1 in that: the other operations were the same as in example 1 except that the kind of the dispersant was changed.

TABLE 1

As can be seen from Table 1, the maleic anhydride-methyl acrylate polymer dispersant is preferable, and is more beneficial to the coloring and the stabilization of the mineral water-based color paste prepared by the invention compared with other conventional dispersants.

The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified. The foregoing describes alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. Some conventional technical aspects have been simplified and omitted for the purpose of teaching the inventive arrangements. Those skilled in the art will appreciate variations from this aspect that fall within the scope of the invention.

Claims

1. The preparation method of the mineral water red color paste is characterized in that the mineral water red color paste comprises the following raw materials in parts by weight: 4-7 parts of iron oxide red powder, 20-80 parts of distilled water, 1-3 parts of dispersing agent and 0.5-1.5 parts of thickening agent, and grinding and dispersing to obtain mineral water red paste, wherein the average particle size of the raw material iron oxide red powder is 10-40 mu m; the average particle size of the mineral water-based red paste is 600-700 nm;

the preparation method comprises the following steps:

(1) mixing iron oxide red powder, distilled water and a half of dispersant by mass, and fully and uniformly stirring to obtain a mixed solution;

(2) putting the mixed solution obtained in the step (1) into a charging bucket of a high-speed sand mill, adding zirconia beads according to a certain ball-to-material ratio, adjusting the speed to 3000-3500 r/min, and grinding and dispersing at a high speed;

(3) continuously adding the other half of dispersing agent and thickening agent into the slurry obtained in the step (2), adjusting the dispersing speed to 4000r/min, and continuously grinding and dispersing at a high speed to obtain the natural mineral water-based red paste with the average particle size of 600-700 nm;

the dispersant is maleic anhydride-methyl acrylate polymer; the thickener is hydroxymethyl cellulose.

2. The preparation method of the mineral water-based red paste according to claim 1, which is characterized by comprising the following steps: the zirconium oxide beads are 95 zirconium beads with the diameter of 0.4-1.2 mm; the mass ratio of the zirconia beads to the iron oxide red powder is 10: 1-12: 1.

3. The application of the mineral aqueous red paste prepared by the method according to claim 1 or 2, which is characterized in that the mineral aqueous red paste, the adhesive and water are mixed and stirred uniformly to prepare the padding liquid, the fabric is subjected to two-dipping and two-pad dyeing finishing, and the fabric is dried, baked and shaped after dyeing to complete dyeing.

4. The application method of the mineral water-based red paste according to claim 3, wherein the application method comprises the following steps: the fabric is made of cotton, hemp, silk or wool.