阅读说明：本技术 一种高反射率油墨的制备方法 (Preparation method of high-reflectivity ink ) 是由 覃佐波 黄顺运 储金鹏 张亚荣 田锋 于 2020-08-26 设计创作，主要内容包括：本发明公开了一种高反射率油墨的制备方法,白色油墨按重量百分比包括：25％-45％的树脂、20％-35％的色粉、8％-20％的助剂、10％-28％的溶剂、5％-10％的固化剂、2％-15％的稀释剂、2％-12％的光油、2％-15％的扩散粒子；通过涂覆本申请的油墨实现了超薄显示。(The invention discloses a preparation method of high-reflectivity ink, which comprises the following steps of: 25-45% of resin, 20-35% of toner, 8-20% of auxiliary agent, 10-28% of solvent, 5-10% of curing agent, 2-15% of diluent, 2-12% of gloss oil and 2-15% of diffusion particles; ultrathin displays were achieved by applying the inks of the present application.)

1. The preparation method of the high-reflectivity ink is characterized in that the ink comprises the following components in percentage by weight: 25-45% of resin, 20-35% of toner, 8-20% of auxiliary agent, 10-28% of solvent, 5-10% of curing agent, 2-15% of diluent, 2-12% of gloss oil and 2-15% of diffusion particles.

2. The method of claim 1, wherein the diffusion particles have a diameter of 3um to 30 um.

3. The method of claim 1, wherein the resin is an epoxy resin and the additive is isophorone.

4. The method for preparing high reflectance ink according to claim 1, wherein the toner is titanium dioxide, lithopone, or zinc oxide.

5. The method for preparing high reflectance ink according to claim 1, wherein the solvent is aromatic hydrocarbon, alcohol, ketone or ester.

6. The method for preparing high reflectance ink according to claim 1, wherein the curing agent is H01 curing agent, the diluent is 783 diluent, and the gloss oil is rosin resin.

7. The method for preparing high reflectance ink according to any one of claims 1 to 6, wherein the white ink is coated on a glass back plate of the ultra-thin display module to form an ink layer, and the reflectance of the ink layer is greater than or equal to 85%.

8. The method for preparing a high reflectance ink according to claim 7, wherein the drying temperature of the ink layer is 125-160 ℃ and the drying time is 20-45 minutes.

9. The method for preparing high reflectance ink according to claim 7, wherein the white ink comprises, by weight, 45% of epoxy resin, 20% of titanium dioxide, 8% of isophorone, 10% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 5% of rosin resin, and 5% of diffusing particles.

Technical Field

The invention relates to the technical field of ink preparation, in particular to a preparation method of high-reflectivity ink.

Background

Ink is an important material for printing, and is used for expressing patterns and characters on a printing material through printing or inkjet. The ink comprises a main component and an auxiliary component which are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. The printing ink is composed of binder (resin), pigment, filler, assistant and solvent, and is used for various printings such as books, periodicals, packaging decorations, building decorations and electronic circuit boards. As social demands increase, ink varieties and yields also expand and grow accordingly.

Traditional light shows the field and often adopts the reflector plate to reflect light, causes the defect that the structure is complicated, display module is heavy, and the good printability of printing ink provides the basis for display module's improvement, but traditional printing ink does not have the reflexibility or has very little reflexibility, and difficult application is shown the field to the light reflection, consequently needs the better printing ink of reflexibility urgently.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a preparation method of the high-reflectivity ink, which realizes the high reflectivity of the ink layer, and can be used as a reflecting layer to be applied to a display module to realize ultrathin display.

The invention provides a preparation method of high-reflectivity ink, which comprises the following steps of: 25-45% of resin, 20-35% of toner, 8-20% of auxiliary agent, 10-28% of solvent, 5-10% of curing agent, 2-15% of diluent, 2-12% of gloss oil and 2-15% of diffusion particles.

Further, the diameter of the diffusion particle is 3um-30 um.

Further, the resin is epoxy resin, and the auxiliary agent is isophorone.

Further, the toner is titanium dioxide or lithopone or zinc oxide.

Further, the solvent is aromatic hydrocarbon or alcohol or ketone or ester.

Further, the curing agent is H01 curing agent, the diluent is 783 diluent, and the gloss oil is rosin resin.

Further, the white ink is coated on a glass back plate of the ultrathin display module to form an ink layer, and the reflectivity of the ink layer is greater than or equal to 85%.

Furthermore, the drying temperature of the ink layer is 125-160 ℃, and the drying time is 20-45 minutes.

Further, the white ink comprises, by weight, 45% of epoxy resin, 20% of titanium dioxide, 8% of isophorone, 10% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 5% of rosin resin and 5% of diffusion particles.

The preparation method of the high-reflectivity ink provided by the invention has the advantages that: according to the preparation method of the high-reflectivity ink, provided by the structure, the high reflectivity of the ink layer is realized, and the ink layer can be used as a reflecting layer to be applied to a display module to realize ultrathin display; when the printing ink of this application was used in ultra-thin display module assembly, can directly scribble the printing ink layer on the glass backplate, the printing ink layer is used for the light reflection on light guide plate shady face to make light jet out from the play plain noodles of light guide plate, replaced traditional display module assembly, set up the defect of penetrating the piece in light guide plate shady face in addition, realized ultra-thin demonstration.

Drawings

FIG. 1 is a schematic view of a structure in which the ink of the present invention is applied to an ultra-thin display;

the display device comprises a frame, a 2-light source, a 3-display module, a 4-base, a 31-glass back panel, a 32-light guide plate, a 33-optical composite film, a 34-liquid crystal screen, a 35-touch panel, a 36-ink layer, a 37-reflector, 321-first dots, 322-second dots, 323-optical glue and 324-UV glue.

Detailed Description

The present invention is described in detail below with reference to specific embodiments, and in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

A preparation method of high-reflectivity ink comprises the following steps of: 25-45% of resin, 20-35% of toner, 8-20% of auxiliary agent, 10-28% of solvent, 5-10% of curing agent, 2-15% of diluent, 2-12% of gloss oil and 2-15% of diffusion particles.

The white ink prepared by mixing the ingredients has a reflection ink reflectivity of more than or equal to 85 percent, has a reflection effect and a light diffusion effect, has high overall plate surface gloss, and has weather, water, alkali, acid and solvent wiping properties and a temperature within 300 ℃.

The traditional ink has no reflectivity or lower reflectivity, and some ink also has light absorption, so the white ink adopting the formula is coated on a glass back plate of an ultrathin display module and used as a reflector plate of a light guide plate to play a role in reflecting light.

The diameter of the diffusion particle is 3um-30um, the resin is epoxy resin, the toner is titanium dioxide or lithopone or zinc oxide, the auxiliary agent is isophorone, the solvent is aromatic hydrocarbons or alcohols or ketones or esters, the curing agent is H01 curing agent, the diluent is 783 diluent, and the gloss oil is rosin resin.

Solvent: the aromatic hydrocarbons include benzene, toluene, xylene, etc., the alcohols include ethanol, isopropanol, butanol, etc., the ketones include acetone, butanone, cyclohexanone, etc., and the esters include ethyl acetate, butyl acetate, etc.

The following examples are given by using epoxy resin, titanium dioxide as a toner, isophorone as an auxiliary agent, ethanol as a solvent, H01 as a curing agent, 783 as a diluent, and rosin resin as a gloss oil.

The present application is not limited to the following examples, for example, the toner may be lithopone, zinc oxide, or the like, and the solvent may be one of aromatic hydrocarbons, alcohols, ketones, or esters, and those skilled in the art may perform the present application according to actual operations, and is not limited to the compositions and components in the following examples.

Example one of the white ink:

selecting: 25% of epoxy resin, 20% of titanium dioxide, 8% of isophorone, 10% of ethanol, 10% of H01 curing agent, 15% of 783 diluent, 5% of rosin resin and 7% of diffusion particles;

uniformly mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles, then adding H01 curing agent into the uniformly stirred mixture, uniformly stirring again, and standing for more than 10 min;

preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

Example two of white ink:

selecting: 30% of epoxy resin, 35% of titanium dioxide, 10% of isophorone, 14% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 2% of rosin resin and 2% of diffusion particles;

uniformly mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles, then adding H01 curing agent into the uniformly stirred mixture, uniformly stirring again, and standing for more than 10 min;

preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

Example three of white ink:

45% of epoxy resin, 20% of titanium dioxide, 8% of isophorone, 10% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 5% of rosin resin and 5% of diffusion particles.

Uniformly mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles, then adding H01 curing agent into the uniformly stirred mixture, uniformly stirring again, and standing for more than 10 min;

preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

Example four of white ink:

25% of epoxy resin, 20% of titanium dioxide, 8% of isophorone, 10% of ethanol, 5% of H01 curing agent, 5% of 783 diluent, 12% of rosin resin and 15% of diffusion particles.

Uniformly mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles, then adding H01 curing agent into the uniformly stirred mixture, uniformly stirring again, and standing for more than 10 min;

preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

Example v of white ink:

25% of epoxy resin, 20% of titanium dioxide, 20% of isophorone, 20% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 2% of rosin resin and 6% of diffusion particles.

Uniformly mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles, then adding H01 curing agent into the uniformly stirred mixture, uniformly stirring again, and standing for more than 10 min;

preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

Example six of white ink:

25% of epoxy resin, 20% of titanium dioxide, 12% of isophorone, 28% of ethanol, 5% of H01 curing agent, 2% of 783 diluent, 2% of rosin resin and 6% of diffusion particles.

Mixing and stirring epoxy resin, titanium dioxide, isophorone, ethanol, 783 diluent, rosin resin and diffusion particles uniformly, then adding H01 curing agent into the uniformly stirred mixture, stirring uniformly again, and standing for more than 10 min.

Preparing a glass back plate 31 obtained after cutting, edging and toughening treatment, and then cleaning; the cleaned glass back plate 31 is placed on an adsorption platform for white ink printing, after the printing is finished, drying is carried out (150 ℃ is multiplied by 30 minutes), and finally, inspection is carried out, so that an ink layer with the reflectivity of more than or equal to 85% is obtained, the printing thickness is uniform, bubbles cannot exist, and the defects such as perforation and the like cannot exist.

The glass back sheet 32 of examples one to six, coated with the ink layer 36, was tested by the following table 1, and the test items included: viscosity, fineness, high temperature resistance, insulation value, adhesive force, weather resistance, UV resistance, high temperature and high humidity resistance, high and low temperature cycle resistance, acid resistance and alkali resistance. The results for each test item satisfy table 1. The obtained product has excellent glossiness, weather resistance, acid resistance, alkali resistance, solvent resistance, water resistance and rubbing resistance; the white ink does not change color after being heated up to 200 ℃ for 60 minutes (or 170 ℃ for 2 hours), and the obtained white ink has high reflectivity to light.

TABLE 1

In the first to sixth examples, since muir-like is caused in 8 hours after the ink is added with the curing agent at room temperature, the effective use time is 4 hours, and it is understood that 8 hours and 4 hours are obtained based on the time when the ink is caused to muir-like, and the time is considered as appropriate; finally, the drying temperature of the ink layer is 125-160 ℃, the drying time is 20-45 minutes, and the drying environment is preferably 150 ℃ multiplied by 30 minutes.

As shown in fig. 1, a specific example of the ink of the present application for ultra-thin display is as follows:

as an embodiment of applying the ink to the ultrathin display, the ultrathin display device is provided with a frame 1, a display module 3 fixedly arranged in the frame 1, and a light source 2, wherein the display module 3 comprises a glass back plate 31, a light guide plate 32, an optical composite film 33, a liquid crystal screen 34, and a touch panel 35, an ink layer 36 is coated on one surface of the glass back plate 31, and the light source 2 is arranged on a light incident surface of the light guide plate 32; the backlight surface of the light guide plate 32 is attached to the ink layer 36 of the glass back plate 31, the light-out surface is attached to the light-in surface of the optical composite film 33, the light-in surface of the liquid crystal display 34 is attached to the light-out surface of the optical composite film 33, and the light-out surface is attached to the touch panel 35.

The glass back plate 31 and the light guide plate 32, the light guide plate 32 and the optical composite film 33, the optical composite film 33 and the liquid crystal panel 34, and the liquid crystal panel 34 and the touch panel 35 are bonded by OCA optical cement.

The sequential laminating relation among the glass back plate 31, the light guide plate 32, the optical composite film 33, the liquid crystal screen 34 and the touch panel 35 saves structural members such as a pressing strip, a hanging lug and a middle frame, the assembling process is simple, automatic production can be realized, the point light source emitted by the light source is converted into the surface light source by combining the ink layer 36 on the glass back plate 31 and the light guide plate 32, and the display definition and the smoothness of the liquid crystal screen 34 are improved.

Directly coat printing ink layer 36 on glass backplate 31, printing ink layer 36 is used for the light reflection of light guide plate 32 shady face to make light jet out from the play plain noodles of light guide plate 32, consequently the printing ink layer 36 of this application uses as the reflector layer, has replaced traditional display module assembly, sets up the defect of penetrating the piece in light guide plate shady face in addition, has realized display module assembly's ultra-thin structure.

Because among the traditional display module assembly, the reflector plate has certain thickness as a shaping product itself, then attaches the reflector plate respectively and still needs the layer of OCA optical cement on leaded light piece and the glass backplate, consequently causes the display module assembly of final equipment to be thicker. According to the application, the ink layer 36 is directly coated on the glass back plate 31, so that the use of a reflector is reduced, the thickness is reduced, and the thickness of OCA optical cement between the reflector and the glass back plate is reduced, so that the thickness is further reduced; therefore, the present application realizes ultra-thin display by disposing the ink layer 36.

The glass back plate 31 and the light guide plate 32 may be both of conventional structures, for example, the light guide plate 32 may be a conventional glass light guide plate. Through the actual display test of above user to this application ultra-thin demonstration, have good display nature, whole display device thickness is thinner for traditional display device simultaneously.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.