KR102393169B1 - Method for manufactuting silicone ink - Google Patents

Abstract

The present invention relates to a method for manufacturing silicone ink using a vacuum mixer. According to the embodiment of the present invention, the method includes the steps of: manufacturing a compounding agent by adding a pigment to a silicone raw material; manufacturing a mixture by mixing the compounding agent a plurality of times using the mixer; adjusting the viscosity of the stirred mixture; manufacturing silicone ink with the viscosity-adjusted mixture using the mixer; and packaging the manufactured silicone ink.

Description

Silicone ink manufacturing method

The present invention relates to a method of manufacturing silicone ink.

In general, silicone ink or rubber ink is used for elastic materials such as swimming caps to have the same performance as the material when printing images on the surface.

Since silicone ink or rubber ink has a high viscosity, an image is formed on the object to be printed by using the silkscreen technique. However, in the case of forming an image using the silkscreen technique, there is a inconvenience in that silkscreen printing has to be performed a number of times corresponding to the number of colors in order to form images of various colors.

In addition, the silicone ink has disadvantages in that it is less uniform than the conventional inkjet ink and it is difficult to manufacture in a plurality of colors.

Therefore, there is a need for a silicon ink manufacturing method to solve these shortcomings, to increase uniformity, and to manufacture to have a plurality of colors.

The technology that is the background of the present invention is disclosed in Korean Patent Registration No. 10-2155179 (notice on September 11, 2020).

The present invention was derived to solve the above problems, to prepare a compounding agent by adding a pigment to a silicone raw material, mixing the compounding material a plurality of times using a mixer to prepare a mixture, and adjusting the viscosity of the mixture to increase the viscosity An object of the present invention is to provide a method for preparing a silicone ink for preparing a silicone ink by using the blended mixture as described above.

According to an embodiment of the present invention, adding a dye to a silicone raw material to prepare a compounding agent, mixing the compounding material a plurality of times using a mixer to prepare a mixture, adjusting the viscosity of the stirred mixture , preparing a silicone ink using the mixer with the viscosity-adjusted mixture, and packaging the prepared silicone ink.

The mixer may include a draw roller, a middle roller and a scraper roller, the draw roller and the scraper roller may rotate in the same direction, and the middle roller may rotate in a direction opposite to the draw roller.

The rotation speed of the middle roller may be faster than the rotation speed of the draw roller, and the rotation speed of the scraper roller may be faster than the rotation speed of the middle roller.

Further comprising the step of adding an additive before the step of packaging the prepared silicone ink,

The additive comprises 30% by weight of bisphenol A phenoxy, 20% by weight of a photosensitive liquid epoxy, and 50% by weight of a functional additive, and the functional additive includes 12 parts by weight of anatase titanium dioxide, 4 parts by weight of hydrogen polysiloxane, and 2 parts by weight of platinum chelate catalyst It may be characterized in that it contains 25 parts by weight of vinyl polysiloxane, 10 parts by weight of N-vinyl caprolactam, 4 parts by weight of diallyl ester acetal, and 20 parts by weight of organosilane.

According to the present invention having the above method and characteristics, by using a mixer, the uniformity of the silicone ink can be ensured, and a plurality of colors can be produced according to the pigment to be blended.

In addition, by sealing using a packaging machine, it is possible to prevent other foreign substances from being contained in the silicone ink that has been manufactured.

1 is a flowchart for explaining a method of manufacturing a silicon ink according to an embodiment of the present invention.
2 is a view showing a silicone resin according to an embodiment of the present invention.
3 is a view showing a mixer according to an embodiment of the present invention.
4 is a view for explaining a vacuum mixer according to an embodiment of the present invention.
5 is a view showing a silicone ink manufactured according to an embodiment of the present invention.
6 is a view for explaining a packaging machine according to an embodiment of the present invention.
7 is a view showing a result printed using the silicone ink produced according to an embodiment of the present invention.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification are only to be referred to to distinguish that they are different components, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention are may not match.

1 is a flowchart illustrating a method of manufacturing silicon ink using a vacuum mixer according to an embodiment of the present invention.

As shown in Figure 1, the silicone ink manufacturing method using a vacuum mixer is a compounding agent preparation step (S110), a mixture preparation step (S120), agitation step (S130), a viscosity adjustment step (S140), a silicone ink production step (S150) and a packaging step (S160).

First, in the compounding agent manufacturing step (S110), a pigment is added to the silicone raw material to prepare a compounding agent.

In this case, the silicone raw material includes a silicone resin or a catalyst.

Here, the silicone resin is a reactive/functional material and may be prepared as a solvent, a solvent-free liquid, or a solid flake.

In addition, inorganic pigments and organic pigments are used together for the pigment.

First, inorganic pigments have excellent physical properties, such as chemical resistance, light resistance, corrosion resistance, chemical resistance, solvent resistance, etc., because the color component is inorganic, but the clarity and coloring power may be lower than those of the organic pigments described above.

In addition, organic pigments have a clearer color than inorganic pigments, have greater coloring power, and can obtain arbitrary color tones, but have poor light resistance and heat resistance, and may dissolve in organic paper and spread color.

Accordingly, in the embodiment of the present invention, the physical properties and color clarity can be improved by including the inorganic pigment and the organic pigment together.

In addition, the pigment may further include a lake pigment.

And the compounding agent may further include a glass frit to increase conductivity.

At this time, the glass frit is bismuth (Bi), zinc (Zn), aluminum (Al), lithium (Li), potassium (K), sodium (Na), titanium (Ti), manganese (Mn), cobalt (Co), and at least one oxide selected from the group consisting of nickel (Ni), copper (Cu), zirconium (Zr), and silicon (Si). That is, by including such a mixture, the compounding material can be used in the case of producing a semiconductor or OLED panel including conductivity.

In addition, the catalyst is for quickly providing a mixing reaction rate between the silicone resin and the dye, and a platinum compound may be used.

2 is a view showing a silicone resin according to an embodiment of the present invention.

That is, a compounding agent is prepared by adding a dye and a catalyst to the silicone resin as shown in FIG. 2 .

Next, in the mixture preparation step (S120), the mixing agent is put in a mixer and mixed a plurality of times.

3 is a view showing a mixer according to an embodiment of the present invention.

As shown in FIG. 3 , the mixer 10 includes a draw roller 11 , a middle roller 12 , a scraper roller 13 and a scraper 14 .

First, the mixer 10 homogenizes the compounding agent by passing the compounding agent through a fine gap between horizontally placed rollers, and the adjacent draw roller 11, middle roller 12 and scraper roller 13 rotate by , pressure and shear force are applied to the compounding agent to produce a homogeneous mixture through mixing, pulverizing and dispersing.

The mixer 10 rotates the draw roller 11 and the scraper roller 13 in the same direction, and rotates the middle roller 12 in the opposite direction to the draw roller 11 and the scraper roller 13 . At this time, the compound is put between the draw roller 11 and the middle roller 12, passes between the draw roller 11 and the middle roller 12, and the sample that adheres to the surface of the middle roller 12 is a scraper roller ( 13), at this time, the draw roller 11 and the middle roller 12 rotate in different directions and at different speeds due to shear forces in the space between the draw roller 11 and the middle roller 12 Mixing, grinding and dispersing come into play. At this time, the narrower the gap between the draw roller 11 and the middle roller 12, the higher the shear force is generated.

Then, the dispersed sample adheres to the scraper roller 14 and is discharged by the scraper 14 .

In addition, it operates so that the rotation speed of the middle roller 13 is faster than the rotation speed of the draw roller 11 and the rotation speed of the scraper roller 13 is faster than the rotation speed of the middle roller 12 . At this time, the rotation speed ratio of the draw roller 11 , the middle roller 12 and the scraper roller 13 is preferably 1:3:9.

That is, when the rotation speed ratio is 1:3:9, the shear force and pressure of the mixer can be exerted to the maximum. For example, when the rotation speed of the draw roller 11 is 67 rpm, the rotation speed of the middle roller 12 is about 200 rpm, and the rotation speed of the scraper roller 13 is about 600 rpm.

By performing the operation of the mixer 10 a plurality of times, the mixing, pulverizing, and dispersing effects of the compounding agent are increased, and a homogenized, high-quality mixture can be produced.

Next, in the stirring step (S130), the mixture is put into the vacuum mixer 20 and stirred.

4 is a view for explaining a vacuum mixer according to an embodiment of the present invention.

As shown in FIG. 4 , the vacuum mixer 20 includes a pressure gauge 21 , a window device 22 and a vacuum pump 23 .

First, the pressure gauge 21 provides the internal pressure of the current vacuum mixer 20 , the window device 22 checks the state of the currently stirring mixture, and the vacuum pump 23 operates the vacuum mixer 20 . The inside is controlled by vacuum.

At this time, the mixture may be stirred using a blade (not shown) of the vacuum mixer 20 . That is, by stirring the mixture using the vacuum mixer 20, it is possible to provide a stronger bond between the silicone resin and the dye.

Next, the viscosity adjusting step (S140) adjusts the viscosity of the stirred mixture.

At this time, the adjusted viscosity is the viscosity of the produced silicone ink and is polished to the required viscosity for printing. In other words. If the viscosity is formed to be smaller than the reference viscosity, there is a disadvantage that it flows down during printing.

Next, in the silicone ink manufacturing step (S150), the mixture having the adjusted viscosity is prepared as silicone ink using the mixer 10.

5 is a view showing a silicon ink produced according to an embodiment of the present invention.

That is, as shown in FIG. 5 , the mixture whose viscosity is adjusted using the mixer 10 described above is mixed, pulverized, and dispersed to prepare a silicone ink.

Next, in the packaging step ( S160 ), the manufactured silicone ink is packaged using a packaging machine.

6 is a view for explaining a packaging machine according to an embodiment of the present invention.

At this time, as shown in FIG. 6 , the packaging machine 30 includes a press 31 , a plurality of support members 32 supporting the press 31 , and a cover 33 installed at the lower end of the press 31 .

That is, a drum filled with silicone ink is placed on the lower surface of the cover 33 shown in FIG. 6 , the drum lid is coupled to the upper surface of the drum, and the lid and the drum are compressed using a press 31 .

At this time, the drum and the lid are brought into close contact using the packaging machine 30 to prevent other foreign substances from being included in the silicone ink that has been manufactured.

7 is a view showing a result printed using the silicon ink produced according to an embodiment of the present invention.

That is, as shown in FIG. 7 , it is possible to print using silicone ink on the upper surface of the fabric.

In addition, the step of adding an additive before the packaging step (S160) in order to strengthen the adhesion when using the silicone ink may be further included.

These additives can prevent the hydrophilic component from being absorbed or reacted into the body by the lipophilic component, and can improve adhesion between the article and the silicone ink during printing.

In this case, the additive includes 30% by weight of bisphenol A phenoxy, 20% by weight of a photosensitive liquid epoxy, and 50% by weight of a functional additive. Bisphenol A phenoxy and a photosensitive liquid epoxy are used to form the adhesive.

Here, the bisphenol A-type phenoxy may be substituted with bisphenol F-type phenoxy, bromide-modified bisphenol A-type phenoxy, or bromide-modified bisphenol F-type phenoxy.

In addition, the photosensitive liquid epoxy may be substituted with a bisphenol A liquid epoxy, a bisphenol F liquid epoxy, a trifunctional or more polyfunctional liquid epoxy, a rubber-modified liquid epoxy, a urethane-modified liquid epoxy, or an acrylic-modified liquid epoxy.

The functional additive, which is a core component of the coating solution, effectively removes nitrogen oxides, organic halogen compounds, and odor gases present in the atmosphere, and prevents absorption or reaction of hydrophilic components into the body by lipophilic groups to improve adhesion. can be improved

At this time, the functional additive is anatase titanium dioxide 12 parts by weight, hydrogen polysiloxane 4 parts by weight, platinum chelate catalyst 2 parts by weight, vinyl polysiloxane 25 parts by weight, N-vinyl caprolactam 10 parts by weight, diallyl ester acetal 4 parts by weight and organic 20 parts by weight of silane.

Anatase titanium dioxide is stirred with a platinum chelate catalyst to produce titanium dioxide maintaining high hydrophilicity, and the produced titanium dioxide can make an active state not only in the ultraviolet region but also in the visible region, and electrons and holes in the active state It moves to the surface and combines with oxygen and hydroxyl groups to form radicals, so nitrogen oxides and organic halogen compounds can be removed.

And anatase titanium dioxide contains 12 parts by weight, and when used in less than 12 parts by weight, nitrogen oxides, organic halogen compounds, etc. cannot be effectively removed, and when used in excess of 12 parts by weight, to form a narrow energy band gap Hard.

Next, the platinum chelate is stirred with anatase titanium dioxide to produce titanium dioxide, and stirred with organosilane to produce an undecyl group in which an alkoxy alcohol and a polyether group are combined to have both hydrophilicity and lipophilicity. The platinum chelate contains 2 parts by weight, and when used in less than 2 parts by weight, the energy band interval of titanium dioxide cannot be effectively reduced, and when used in excess of 2 parts by weight, it is not economical.

Diallyl ester acetal is a curing agent, N-vinyl caprolactam is a hydrophilic monomer, and is stirred with a vinyl polysiloxane resin to have hydrophilicity.

Such diallyl ester acetal contains 4 parts by weight, and when used in less than 4 parts by weight, the curing rate is reduced, and when used in excess of 4 parts by weight, the optimum curing rate cannot be maintained, resulting in reduced economic efficiency and lowered physical properties can occur

In addition, N-vinyl caprolactam contains 10 parts by weight, and when used in less than 10 parts by weight or in excess of 10 parts by weight, hydrophilicity above a certain level cannot be secured.

The organosilane includes an undecyl group in which an alkoxy alcohol and a polyether group are bonded together using platinum chelate as a catalyst.

In this case, the undecyl group to which the alkoxy alcohol and the polyether group are bonded together includes a hydrophilic group and a lipophilic group.

Here, the organosilane contains 20 parts by weight, and when used in less than 20 parts by weight, the alkoxy alcohol and polyether groups do not bind to the undecyl group, and when used in excess of 20 parts by weight, it is not economical.

Various modifications and changes to the present invention described above with reference to the accompanying drawings are possible by those skilled in the art, and such modifications and changes not limited through the claims should be construed as being included in the scope of the present invention.

10: mixer 11: draw roller
12: middle roller 13: scraper roller
14: scraper 20: vacuum mixer
21: pressure gauge 22: window device
23: vacuum pump 30: packaging machine
31: press 32: support member
33: cover

Claims (4)

preparing a compounding agent by adding a pigment to the silicone raw material;
preparing a mixture by mixing the compounding material a plurality of times using a mixer;
adjusting the viscosity of the stirred mixture;
preparing a silicone ink using the mixer with the viscosity-adjusted mixture; and
Comprising the step of packaging the prepared silicone ink,
Further comprising the step of adding an additive before the step of packaging the prepared silicone ink,
The additive is formed by application of a coating solution containing 30% by weight of bisphenol A phenoxy, 20% by weight of a photosensitive liquid epoxy, and 50% by weight of a functional additive,
The functional additive is anatase titanium dioxide 12 parts by weight, hydrogen polysiloxane 4 parts by weight, platinum chelate catalyst 2 parts by weight, vinyl polysiloxane 25 parts by weight, N-vinyl caprolactam 10 parts by weight, diallyl ester acetal 4 parts by weight and organosilane A method for producing a silicone ink comprising 20 parts by weight.
The method according to claim 1,
The mixer includes a draw roller, a middle roller and a scraper roller,
The draw roller and the scraper roller rotate in the same direction, and the middle roller rotates in the opposite direction to the draw roller.
3. The method according to claim 2,
A method of manufacturing silicon ink, wherein the rotation speed of the middle roller is faster than the rotation speed of the draw roller, and the rotation speed of the scraper roller is faster than the rotation speed of the middle roller.
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