CN111592873A - Photochromic toner, preparation method thereof and resin zipper - Google Patents
Photochromic toner, preparation method thereof and resin zipper Download PDFInfo
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- CN111592873A CN111592873A CN202010186977.2A CN202010186977A CN111592873A CN 111592873 A CN111592873 A CN 111592873A CN 202010186977 A CN202010186977 A CN 202010186977A CN 111592873 A CN111592873 A CN 111592873A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/26—Sliders
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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- Engineering & Computer Science (AREA)
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- Developing Agents For Electrophotography (AREA)
Abstract
The present invention provides a photochromic toner comprising: 10-50 parts by weight of photochromic microcapsules; 10-50 parts by weight of water; 0.5-20 parts by weight of sodium hexametaphosphate; 3-30 parts by weight of sodium silicate; 0-1 part by weight of sodium hydroxide; 0.05 to 1 part by weight of sulfuric acid. The invention mixes photochromic microcapsules, sodium hexametaphosphate, sodium silicate and the like and mixes organic photochromic micro-gelThe silica coated on the surface of the capsule can prevent the photochromic microcapsule shell from being dissolved in the injection molding process, so that the coated photochromic material is prevented from being damaged in the manufacturing process, and the photochromic resin zipper product which has long service life and high temperature resistance and meets the clothing requirements is manufactured. The ultraviolet light intensity of the color-changing powder prepared by the invention in sunlight reaches 0.8w/cm2The discoloration can be achieved only in the case of (1).
Description
Technical Field
The invention relates to the technical field of zippers, in particular to photochromic toner, a preparation method thereof and a resin zipper.
Background
A resin zipper with sunlight color changing effect is an organic photochromic compound, has the characteristics of sensitive color changing and bright color, and has a small amount of products for civil use such as textiles, resins, colloids and the like in foreign countries. However, the photochromic compound is easily oxidized by environmental factors such as temperature, illumination, pH value, oxygen and the like, and has poor fatigue resistance, thereby influencing the application of the photochromic compound in the civil fields such as textiles and the like.
The service life of photochromic products in the current market on materials such as plastics, organic silica gel and the like is short mostly, and because the macromolecular microcapsules are dissolved locally in the high-temperature processing process, the photochromic materials are inevitably affected by the changes of active groups and pH value in the plastics, and the photochromic materials are invalid or the service life is greatly reduced,
disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a photochromic toner, which is stable at high temperature, high in color-changing temperature and long in service life.
The present invention provides a photochromic toner comprising:
the invention provides a preparation method of photochromic toner, which comprises the following steps:
A) heating and dispersing photochromic microcapsules, water and sodium hexametaphosphate, and adjusting the pH value to obtain a dispersion liquid;
B) and mixing the dispersion liquid with sodium silicate, adjusting the pH value by using sulfuric acid, aging, filtering and crushing to obtain the photochromic toner.
Preferably, the pH value in the step A) is 7-9; the heating temperature is 60-65 ℃; the dispersion time is 30-35 min.
Preferably, the concentration of the sulfuric acid is 1-1.2 mol/L; adjusting the pH value to 9.5-10.5 by using sulfuric acid; the aging time is 2-2.5.
The invention provides a photochromic toner resin slider, comprising:
5 to 30 parts by weight of the photochromic toner according to claim 1;
1000 parts by weight of resin;
1-3 parts of a dispersant.
Preferably, the resin is selected from one or more of POM, PC, PA6, TPU, PVC, PP, ABS, TPE, TPR, PPE, PSV, PMP, ASA, HDPE, LDPE and PMP.
The invention provides a preparation method of the photochromic toner resin slider, which comprises the following steps:
mixing the dried resin, the photochromic toner and the dispersing agent, stirring and heating to obtain a tab material;
and preparing the puller material into the puller in a mould.
The invention provides a photochromic toner resin tooth, comprising:
the invention provides a preparation method of photochromic toner resin teeth, which comprises the following steps:
mixing and stirring the dried resin, the photochromic toner, the noctilucent powder, the dispersant and the white oil, and heating to obtain the tooth material;
and putting the tooth material into a mould to produce the tooth.
The invention provides a resin zipper, which is characterized by comprising the photochromic toner resin slider and/or the photochromic toner resin teeth.
Compared with the prior art, the invention provides photochromic toner, which comprises: 10-50 parts by weight of photochromic microcapsules; 10-50 parts by weight of water; 0.5-20 parts by weight of sodium hexametaphosphate; 3-30 parts by weight of sodium silicate; 0-1 part by weight of sodium hydroxide; 0.05 to 1 part by weight of sulfuric acid. The invention mixes the photochromic microcapsule, sodium hexametaphosphate, sodium silicate and the like, and the surface of the organic photochromic microcapsule is coated with the silicon dioxide to prevent the shell of the photochromic microcapsule from being dissolved in the injection molding process, thereby preventing the coated photochromic material from being damaged in the manufacturing process, and further manufacturing the high-temperature resistant composite material with long service lifePhotochromic resin zipper products required for clothing. The ultraviolet light intensity of the color-changing powder prepared by the invention in sunlight reaches 0.8w/cm2The discoloration can be achieved only in the case of (1).
Drawings
FIG. 1 is a zipper before light change prepared in example 3 of the present invention;
FIG. 2 is an optically variable zipper prepared in example 3 of the present invention;
FIG. 3 is a zipper showing a luminous effect in a dark place, which is prepared in example 3 of the present invention;
FIG. 4 is a zipper before light change prepared in example 4 of the present invention;
fig. 5 shows optically variable zippers prepared in example 4 of the present invention.
Detailed Description
The invention provides photochromic toner, a preparation method thereof and a resin zipper, and a person skilled in the art can realize the photochromic toner by appropriately improving process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The present invention provides a photochromic toner comprising:
the photochromic microcapsule provides a sunlight color changing function, water is used as a dispersing medium, sodium hexametaphosphate is used as a dispersing agent to form a suspension emulsion of the photochromic microcapsule, the pH value of the suspension emulsion of the photochromic microcapsule is adjusted by sodium hydroxide to promote the sodium silicate to be dissolved in the suspension emulsion, and then the pH value is reduced by adding sulfuric acid to promote the silicon oxide to be separated out, so that the microcapsule particle with the silicon oxide protective film is formed.
The photochromic toner provided by the invention comprises 10-50 parts by weight of photochromic microcapsules; preferably 15 to 45 parts by weight of photochromic microcapsules; more preferably 18 to 42 parts by weight of photochromic microcapsules.
The source of the photochromic microcapsules in the present invention is not limited, and the photochromic microcapsules may be commercially available.
The photochromic toner provided by the invention comprises 10-50 parts by weight of water, preferably 15-45 parts by weight of water; more preferably 18 to 42 parts by weight of water.
The water of the present invention is preferably deionized water.
The photochromic toner provided by the invention comprises 0.5-20 parts by weight of sodium hexametaphosphate; preferably 1 to 18 parts by weight of sodium hexametaphosphate; more preferably, 5 to 15 parts by weight of sodium hexametaphosphate is included.
In the present invention, the source of the sodium hexametaphosphate is not limited and may be commercially available.
The photochromic toner provided by the invention comprises 3-30 parts by weight of sodium silicate; preferably 5 to 25 parts by weight of sodium silicate; more preferably 8 to 20 parts by weight of sodium silicate. The source of the sodium silicate is not limited in the invention, and the sodium silicate can be obtained commercially.
The photochromic toner provided by the invention comprises 0-1 part by weight of sodium hydroxide; preferably, the sodium hydroxide is contained in an amount of 0.2 to 0.8 parts by weight.
The photochromic toner provided by the invention comprises 0.05-1 part by weight of sulfuric acid; preferably 0.1 to 0.9 parts by weight of sulfuric acid; more preferably, the sulfuric acid is included in an amount of 0.2 to 0.8 parts by weight.
According to the invention, the concentration of the sulfuric acid is preferably 1-1.2 mol/L.
In some preferred embodiments of the present invention, a photochromic toner comprises:
the invention mixes the photochromic microcapsule, sodium hexametaphosphate, sodium silicate and the like and the surface of the organic photochromic microcapsule is treatedThe silica coating can prevent the photochromic microcapsule shell from being dissolved in the injection molding process, so that the coated photochromic material is prevented from being damaged in the manufacturing process, the prepared photochromic toner is high-temperature discolored, and the stability is good. The ultraviolet light intensity of the color-changing powder prepared by the invention in sunlight reaches 0.8w/cm2The discoloration can be achieved only in the case of (1).
The invention provides a preparation method of photochromic toner, which comprises the following steps:
A) heating and dispersing photochromic microcapsules, water and sodium hexametaphosphate, and adjusting the pH value to obtain a dispersion liquid;
B) and mixing the dispersion liquid with sodium silicate, adjusting the pH value by using sulfuric acid, aging, filtering and crushing to obtain the photochromic toner.
Firstly, heating and dispersing photochromic microcapsules, water and sodium hexametaphosphate, and adjusting the pH value to obtain a dispersion liquid; the method specifically comprises the following steps:
the photochromic microcapsules and water are stirred and dispersed. Starting a stirring power supply, and adding a sodium hexametaphosphate solution for dispersion. Adjusting the pH value to be preferably 7-9, and dispersing in a water bath by using a stirrer; the heating temperature is preferably 60-65 ℃; the dispersing time is preferably 30-35 min.
Mixing the dispersion liquid with sodium silicate, adjusting the pH value with sulfuric acid, and simultaneously titrating with 1-1.2 mol/L sulfuric acid solution, wherein the pH value is preferably 9.5-10.5.
Then aging, filtering and crushing to obtain the photochromic toner.
The aging time is 2-2.5 h; then washing, filtering and drying: pouring the coated slurry into a Buchner funnel for suction filtration, carrying out primary powdering on the cooled blocky microcapsules by using a high-speed pulverizer, and then carrying out fine powder by using a jet mill to obtain the photochromic powder.
The invention provides a photochromic toner resin slider, comprising:
5-30 parts by weight of photochromic toner;
1000 parts by weight of resin;
1-3 parts of a dispersant.
The photochromic toner resin pull head comprises 5-30 parts by weight of photochromic toner; preferably, the photochromic toner comprises 7-28 parts by weight of photochromic toner; more preferably, the photochromic toner comprises 10 to 25 parts by weight of the photochromic toner.
The photochromic toner of the present invention has been described above clearly and will not be described herein.
The photochromic toner resin slider comprises 1000 parts by weight of resin.
The resin is preferably selected from one or more of POM, PC, PA6, TPU, PVC, PP, ABS, TPE, TPR, PPE, PSV, PMP, ASA, HDPE, LDPE and PMP; more preferably one or more selected from POM, PCTPU, PVC, PP, ABS, TPE, TPR, PPE, PMP, ASA, HDPE and PMP; most preferably TPU or POM.
The photochromic toner resin pull head comprises 1-3 parts by weight of a dispersing agent; may be 1 part by weight, 2 parts by weight or 3 parts by weight of a dispersant.
According to the invention, the dispersant is preferably an inorganic dispersant, such as: alkali metal phosphates (e.g., sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, etc.). Applicable dispersants also include organic dispersants including: triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum, fatty acid polyglycol ester, etc.
The invention provides a preparation method of the photochromic toner resin slider, which comprises the following steps:
mixing the dried resin, the photochromic toner and the dispersing agent, stirring and heating to obtain a tab material;
and preparing the puller material into the puller in a mould.
The preparation method of the photochromic toner resin pull head comprises the steps of mixing the dried resin, the photochromic toner and the dispersing agent, stirring and heating to obtain the pull head material.
The resin is first dried.
The method specifically comprises the following steps: putting the resin material in a drying box, covering a sealing cover, adjusting the drying temperature to 80-90 ℃, and drying for 2-3 h.
Then, putting the dried resin material into a stirrer, weighing the photochromic powder and pouring the photochromic powder into the resin material, weighing the corresponding amount of the dispersing agent and pouring the dispersing agent into the resin material, starting the stirrer to stir for 5-8 min; and uniformly stirring the mixture for later use, adjusting the temperature of a machine to 180-200 ℃, installing a corresponding die, pouring the material into a hopper, and starting production to obtain the pull head.
The present invention is not limited to a specific production process of the slider, and those skilled in the art will be familiar with the technology.
The invention provides a photochromic toner resin tooth, comprising:
the photochromic toner resin tooth comprises 5-30 parts by weight of photochromic toner; preferably, the photochromic toner comprises 7-28 parts by weight of photochromic toner; more preferably, the photochromic toner comprises 10 to 25 parts by weight of the photochromic toner.
The photochromic toner of the present invention has been described above clearly and will not be described herein.
The photochromic toner resin tooth of the invention comprises 1000 parts by weight of resin.
The resin is preferably selected from one or more of POM, PC, PA6, TPU, PVC, PP, ABS, TPE, TPR, PPE, PSV, PMP, ASA, HDPE, LDPE and PMP; more preferably one or more selected from POM, PCTPU, PVC, PP, ABS, TPE, TPR, PPE, PMP, ASA, HDPE and PMP; most preferably TPU or POM.
The photochromic toner resin tooth comprises 1-3 parts by weight of a dispersing agent; may be 1 part by weight, 2 parts by weight or 3 parts by weight of a dispersant.
The photochromic toner resin tooth comprises 0.1-0.5 part by weight of white oil; preferably, it may be 0.1 parts by weight, 0.2 parts by weight, 0.3 parts by weight, 0.4 parts by weight or 0.5 parts by weight of white oil.
The source of the white oil in the present invention is not limited, and the white oil may be commercially available.
The invention provides a preparation method of photochromic toner resin teeth, which comprises the following steps:
mixing and stirring the dried resin, the photochromic toner, the noctilucent powder, the dispersant and the white oil, and heating to obtain the tooth material;
and putting the tooth material into a mould to produce the tooth.
The preparation method of the photochromic toner resin tooth provided by the invention comprises the steps of mixing and stirring the dried resin, the photochromic toner, the dispersing agent and the white oil, and heating to obtain the tooth material.
The resin is first dried.
The method specifically comprises the following steps: and putting the resin material in a drying box, covering the drying box with a sealing cover, adjusting the drying temperature to 90-100 ℃, and drying for 2-3 h.
Putting the dried resin material into a stirrer, weighing the photochromic powder, the dispersing agent and the white oil by an electronic scale, pouring the photochromic powder, the dispersing agent and the white oil into the resin material, and starting the stirrer to stir; and the stirring time is 6-10 minutes, the mixture is uniformly stirred for standby application, the temperature of the machine is adjusted to 190-200 ℃, corresponding dies and cloth belts are installed, and the materials are poured into a hopper to start to produce the teeth.
The present invention is not limited to a specific process for producing teeth, and those skilled in the art will be familiar with the process.
The invention provides a resin zipper, which is characterized by comprising the photochromic toner resin slider and/or the photochromic toner resin teeth.
The invention provides a preparation method of the resin zipper, which comprises the following steps:
and (3) washing the teeth, punching, sticking cloth, assembling a puller, performing injection molding to stop the upper and lower parts, and cutting to finish the manufacture of the photochromic zipper.
Namely: photochromic resin color matching → dehumidifying and drying → photochromic resin tooth → sizing → punching → sticking cloth → injection molding top and bottom stop → cutting finished product
The present invention is not limited to a specific process for producing a slide fastener, and those skilled in the art will be familiar with the process.
The present invention provides a photochromic toner comprising: 10-50 parts by weight of photochromic microcapsules; 10-50 parts by weight of water; 0.5-20 parts by weight of sodium hexametaphosphate; 3-30 parts by weight of sodium silicate; 0-1 part by weight of sodium hydroxide; 0.05 to 1 part by weight of sulfuric acid. The photochromic resin zipper product which has long service life and high temperature resistance and meets the clothing requirements is manufactured by mixing the photochromic microcapsules, sodium hexametaphosphate, sodium silicate and the like, and coating the surface of the organic photochromic microcapsules with silicon dioxide to prevent the shell of the photochromic microcapsules from being dissolved in the injection molding process, so that the coated photochromic material is prevented from being damaged in the manufacturing process. The ultraviolet light intensity of the color-changing powder prepared by the invention in sunlight reaches 0.8w/cm2The discoloration can be achieved only in the case of (1).
The process technology is simple to operate, low in production cost, clean and environment-friendly, the process is consistent with the production process of the conventional product, the process product can be produced without training staff, all materials such as resin, organic silica gel and PVC rubber are general materials, and the materials do not need to be redeveloped or northbound by a factory, so that the stock pressure of raw materials is reduced, and the defects of short service life and the like of photochromic clothing accessories are overcome.
To further illustrate the present invention, the present invention is provided below with reference to examples, fig. 1 is a zipper before light change prepared in example 4 of the present invention, and fig. 2 is a zipper after light change prepared in example 4 of the present invention. The detailed description is made.
Example 1
And (3) making a photochromic powder: 60g of photochromic microcapsules are weighed, 120ml of deionized water is added, and stirring and dispersion are carried out. Starting a stirring power supply, and adding 4 g of sodium hexametaphosphate solution for dispersion; adding a proper amount of sodium hydroxide according to the requirement of pH value adjustment, adjusting the pH value to be 8, and dispersing for 30 minutes at the water bath temperature of 63 ℃ by using a stirrer; then transferring a proper amount of 25 g of sodium silicate solution, adding the sodium silicate solution into a flask, and simultaneously titrating by using 1mol/L sulfuric acid solution, wherein the pH value is 10; aging for 2 h; washing with water, filtering and drying; pouring the coated slurry into a Buchner funnel for suction filtration, carrying out primary powdering on the cooled blocky microcapsules by using a high-speed pulverizer, and then carrying out fine powder by using a jet mill to obtain the photochromic powder.
Example 2
Putting 1000g of TPU material into a drying box, covering a sealing cover, adjusting the drying temperature to 90 ℃, drying for 3h, putting the dried TPU material into a stirrer, weighing 20g of photochromic powder by an electronic scale, pouring into the TPU material, weighing 1.5g of dispersing agent, pouring into the TPU material, starting a machine, stirring for 6 minutes, uniformly stirring the mixture for later use, adjusting the machine temperature to 190 ℃, installing a corresponding die, pouring the material into a hopper, and starting to produce to obtain the pull head for the zipper.
Example 3
Putting 1000g of POM material into a drying box, covering a sealing cover, adjusting the drying temperature to 100 ℃, drying for 3h, putting the dried POM material into a stirrer, weighing 15g of photochromic powder, 10g of luminous powder, 1g of dispersing agent and 0.2g of white oil by an electronic scale, pouring into the POM material, starting a machine for stirring for 8min, stirring the mixture uniformly for later use, adjusting the machine temperature to 195 ℃, installing a corresponding die and a cloth belt, pouring the material into a hopper to start producing teeth, washing, punching, sticking cloth, assembling a pull head for the zipper prepared in example 2, injecting upper and lower stops, and cutting to complete the photochromic zipper. Fig. 1 is a zipper before light change prepared in embodiment 3 of the present invention, fig. 2 is a zipper after light change prepared in embodiment 3 of the present invention, fig. 3 is a zipper with a noctilucent effect in a dark place prepared in embodiment 3 of the present invention, the zipper shows the effect of fig. 2 under the irradiation of sunlight, and the zipper shows the effect of fig. 3 under the shining of light in the dark place and the noctilucent effect.
Example 4
The invention provides a multicolor photochromic toner resin tooth, comprising:
putting 1000g of POM material into a drying box, covering a sealing cover, adjusting the drying temperature to 100 ℃, drying for 3h, putting the dried POM material into a stirrer, weighing 15g of photochromic powder, 1.0g (capable of being mixed with various colors), 1g of dispersing agent and 0.2g of white oil by an electronic scale, pouring the mixture into the POM material, starting the machine to stir for 8min, uniformly stirring the mixture for later use, adjusting the temperature of the machine to 195 ℃, installing corresponding dies and cloth belts, pouring the mixture into the hopper to start producing teeth, washing, punching, sticking cloth, assembling the puller for the zipper prepared in example 2, injecting the upper and lower stoppers and cutting the teeth, and finishing the photochromic zipper. Fig. 4 is a zipper before light change prepared in example 4 of the present invention, and fig. 5 is a zipper after light change prepared in example 4 of the present invention.
The physical and chemical properties of the photochromic zipper were measured: the photochromic powder wraps the silicon dioxide on the surface of the organic photochromic microcapsule, so that the photochromic material can be prevented from being damaged in the manufacturing process, and the auxiliary material with the service life meeting the clothing requirements is manufactured. Determining the physical and chemical properties of the zipper, the pull piece, the organic silica gel and the PVC rubber with the photochromic effect: all reach the color fastness to artificial light in GB/T8427 textile color fastness test: xenon arc lamp requirements;
the physical properties of the optically variable zipper all meet the requirements of GB/T3921.1 textile color fastness to washing, dry cleaning and machine washing, the production process of the formula is consistent with the production process of conventional products, and the physical detection performance of the products is consistent.
The photochromic slide fastener was produced in accordance with the methods of example 1 and example 2, and the yield was measured, and the result was 98%.
Example 5 measurement of Properties
The high temperature stability means that the ultraviolet toner is discolored at the time of high temperature processing, and the following test example is of a level of 5 of no discoloration.
TABLE I, domestic toner, imported toner, ultraviolet toner, high-temperature discoloration test contrast table
As can be seen from the data in the table I, the color of the domestic and imported toner can change after high-temperature processing, the color begins to change at 160-180 ℃, the ultraviolet toner of the invention has no color change at 200 ℃, the color change grade can reach 4-grade and is far higher than that of other toners when the ultraviolet toner is heated to 220 ℃, and no powder particles on the surface of the product can not influence the transparency.
TABLE II, contrast table for testing the weather resistance of domestic toner, imported toner, ultraviolet toner
As can be seen from the data in the table, the chroma decrement of the ultraviolet toner is only 10% when the ultraviolet toner is irradiated for 100 hours, and the domestic toner and the imported toner are both attenuated to be less than 5% of the initial chroma at the moment, so that the ultraviolet toner is proved to have remarkable weather resistance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A photochromic toner, comprising:
2. a method of preparing a photochromic toner, comprising:
A) heating and dispersing photochromic microcapsules, water and sodium hexametaphosphate, and adjusting the pH value to obtain a dispersion liquid;
B) and mixing the dispersion liquid with sodium silicate, adjusting the pH value by using sulfuric acid, aging, filtering and crushing to obtain the photochromic toner.
3. The method according to claim 2, wherein the pH value in step A) is 7 to 9; the heating temperature is 60-65 ℃; the dispersion time is 30-35 min.
4. The preparation method according to claim 2, wherein the concentration of the sulfuric acid is 1 to 1.2 mol/L; adjusting the pH value to 9.5-10.5 by using sulfuric acid; the aging time is 2-2.5.
5. A photochromic toner resin slider, comprising:
5 to 30 parts by weight of the photochromic toner according to claim 1;
1000 parts by weight of resin;
1-3 parts of a dispersant.
6. The photochromic toner resin slider as claimed in claim 5, wherein the resin is selected from one or more of POM, PC, PA6, TPU, PVC, PP, ABS, TPE, TPR, PPE, PSV, PMP, ASA, HDPE, LDPE and PMP.
7. The method for preparing the photochromic toner resin slider as claimed in claim 5, comprising:
mixing the dried resin, the photochromic toner and the dispersing agent, stirring and heating to obtain a tab material;
and preparing the puller material into the puller in a mould.
8. A photochromic and luminous functional resin tooth is characterized by comprising:
9. a method for preparing the photochromic and luminous functional resin tooth according to claim 8, which comprises:
mixing and stirring the dried resin, the photochromic toner, the noctilucent powder, the dispersant and the white oil, and heating to obtain the tooth material;
and putting the tooth material into a mould to produce the tooth.
10. A resin slide fastener comprising the photochromic toner resin slider as defined in claim 5 and/or the photochromic and luminous functional resin element as defined in claim 8.
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Application publication date: 20200828 |