KR20200144662A - Filament composition for 3D printer containing bone powder, method of manufacturing filament for 3D printer using the same, and filament for 3D printer manufactured from this - Google Patents

Abstract

The present invention relates to a filament composition for a 3D printer containing bone powder, a method of manufacturing a filament for a 3D printer using the same, and a filament for a 3D printer manufactured therefrom. More particularly, the present invention relates to: a filament composition for a 3D printer, containing bone powder to create a new memorial culture by 3D printing in a wanted shape using the bone powder obtained by crushing the remains; a method of manufacturing a filament for a 3D printer using the same; and a filament for a 3D printer manufactured therefrom. The technical gist of the present invention is: the filament composition for a 3D printer containing bone powder, wherein the composition comprises, based on 100 parts by weight of a polymer resin, 1 to 40 parts by weight of bone powder obtained by crushing the remains, 1 to 10 parts by weight of charcoal for preservation of bone powder, and 1 to 10 parts by weight of additives; the method of manufacturing the filament for a 3D printer using the same; and the filament for a 3D printer manufactured therefrom.

Description

Filament composition for 3D printer containing bone powder, method of manufacturing filament for 3D printer using the same, and filament for 3D printer manufactured from this}

The present invention relates to a filament composition for a 3D printer containing bone meal, a method for manufacturing a filament for a 3D printer using the same, and a filament for a 3D printer manufactured therefrom, and more particularly, to a desired shape using bone meal obtained by pulverizing the ashes. The present invention relates to a 3D printer filament composition containing bone powder that enables 3D printing to create a new memorial culture, a method of manufacturing a 3D printer filament using the same, and a 3D printer filament manufactured therefrom.

Most of the funeral culture in Korea is the method of burying the body after the death of a person or pet, and in the past, funeral culture through cremation was not widely spread.

Only recently, with the change of awareness of the funeral culture, there is a trend of increasing funeral culture through cremation.According to the announcement by the Ministry of Health and Welfare, the cremation rate reached 84.6%, and the cremation rate in Busan also reached 93%, which led to the rapid growth of funeral culture. Is changing.

However, despite the cremation, it is difficult to preserve the remains for a long period of time because it has the property of strongly absorbing the surrounding moisture, and if the management is neglected a little, it begins to deteriorate and decomposes and generates odor, and the remains are damaged due to the invasion of pests. Since there are always cases, there is also a form of illegal mountaineering (散骨).

In particular, companion animals were classified as general waste until the past, and were disposed of by putting the carcasses in a pay-as-you-go garbage bag.However, since there is a strong tendency to treat companion animals like family, it is not recommended to put the carcasses of companion animals in a regular pay-as-you-go garbage bag. It can cause the owner's emotional rejection, and can make the general public who see the body feel severe rejection.

In order to come up with a plan to remember the deceased or pets in light of this reality, in'How to shape the ashes (Registration No.: 10-1700874)', 30 to 60 wt% of the remains and 10 to 30 wt% of the inorganic material And after preparing the original model of the ashes with a slurry mixed with 20 to 50 wt% of the organic material used as a binder, a soft mold was manufactured with the original model, and then the ashes were put in the soft mold and cured through a series of processes. I tried to shape it.

However, not only is there a hassle of having to go through the process of making a separate soft mold using the original model of the shaped ashes, but also because the remains rot over time and it is difficult to store for a long period of time, so that the deceased or pets are remembered for a long time. It has been difficult to do.

Therefore, by making the desired shape to keep the good memories of the deceased or companion animals more meaningful and long-lasting, not only can the commemoration be comfortably made regardless of the location and cost, but also the bone powder treatment after cremation is facilitated. This is the time when research on new technology development is desperately required.

Registered Korean Patent Publication No. 10-1700874, as of January 23, 2017.

The present invention was invented to solve the above problems, and a filament composition for a 3D printer containing bone powder, which enables the creation of a new memorial culture by 3D printing in a desired shape using bone powder obtained by crushing ashes, 3D using the same An object thereof is to provide a method of manufacturing a printer filament and a filament for a 3D printer manufactured therefrom.

The present invention for achieving the above object, based on 100 parts by weight of a polymer resin, 1 to 40 parts by weight of bone meal obtained by crushing the ashes; 1 to 10 parts by weight of charcoal for preserving the bone meal; And 1 to 10 parts by weight of additives; The filament composition for a 3D printer containing bone meal, characterized in that it comprises a technical gist.

Preferably, the additive is characterized in that at least one of polyurethane (Polyurethane), polyethyleneimine (Polyethylenimine) and carboxymethyl cellulose (Carboxymethyl cellulose).

The present invention for achieving the above object is, based on 100 parts by weight of a polymer resin, 1 to 40 parts by weight of bone meal crushed ashes, 1 to 10 parts by weight of charcoal for preservation of the bone powder and 1 to 10 parts by weight of additives A first step of preparing a filament composition consisting of; And a second step of extruding the filament composition at 200 to 300° C. to prepare a wire-shaped filament; and a method of manufacturing a filament for a 3D printer using a filament composition for a 3D printer containing bone powder Let it be the point.

The present invention for achieving the above object is, based on 100 parts by weight of a polymer resin, 1 to 40 parts by weight of bone meal crushed ashes, 1 to 10 parts by weight of charcoal for preservation of the bone powder and 1 to 10 parts by weight of additives A filament for a 3D printer using a filament composition for a 3D printer containing bone powder, characterized in that it is in the form of a wire formed by extruding the made filament composition at 200 to 300°C, is a technical gist.

The filament composition for a 3D printer containing bone meal according to the present invention by means of solving the above problems, a method of manufacturing a filament for a 3D printer using the same, and a filament for a 3D printer manufactured therefrom have the following effects.

First, the addition of charcoal has the effect of preserving so that the crushed bone meal does not decay or odor occurs.

Second, there is an effect that enables efficient treatment of bone meal generated after cremation of the deceased or companion animal.

Third, it is possible to 3D print a filament containing bone meal of the deceased or companion animal in a desired shape, thus creating a new memorial culture.

1 is a process diagram in which a filament is manufactured according to a preferred embodiment of the present invention.
Figure 2 is an extruder according to a preferred embodiment of the present invention.

The present invention is a 3D printer containing bone powder to include 1 to 40 parts by weight of bone powder obtained by crushing the bone powder, 1 to 10 parts by weight of charcoal for preserving the bone powder, and 1 to 10 parts by weight of an additive based on 100 parts by weight of a polymer resin It relates to a filament composition for, and a method of extruding the filament composition at 200 to 300° C. to produce a filament for a 3D printer in the form of a wire, and a filament for a 3D printer manufactured from the above manufacturing method.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a process of manufacturing a filament according to a preferred embodiment of the present invention. Referring to Figure 1, it can be seen that the filament composition consisting of a polymer resin, bone meal, charcoal, and additives are extruded at 200 to 300 °C to illustrate the process of manufacturing a filament.

As shown in FIG. 1, the characteristics of each step of forming a method of manufacturing a 3D printer filament using a filament composition for a 3D printer containing bone powder will be described in more detail below.

First, the first step is to prepare a filament composition consisting of 1 to 40 parts by weight of bone meal obtained by pulverizing the ashes, 1 to 10 parts by weight of charcoal for preservation of the bone meal, and 1 to 10 parts by weight of additives based on 100 parts by weight of the polymer resin. It is a step (S10).

First, each of the polymer resin, bone meal, charcoal and additives constituting the filament composition will be described in detail.

First, the polymer resin is a component constituting the base of the filament composition, and is a configuration that makes the filament into a flexible wire shape when the filament composition is extruded by the screw 120 while passing through the body 110 of the extruder 100.

Such a polymer resin prevents oxidation even when exposed to air and facilitates extrusion molding into filaments.

Polymer resins include acrylonitrile butadiene styrene copolymer (ABS), polylactic acid (PLA), high impact polystyrene (HIPS), polyethylene terephthalate (PET). ), high-density polyethylene (HDPE), polycarbonate (PC), and nylon (Nylon). In some cases, two or more types may be mixed and used, and any polymer resin capable of 3D printing may be applied, not necessarily limited to the above-described types.

Second, bone meal is a powder form obtained by pulverizing ashes, and is a composition that refers to the ashes left by cremation after the death of a person or companion animal.

If the filament is produced only with the polymer resin described above, there is a disadvantage in implementing strength, but bone powder capable of imparting strength is included in the filament composition, so that it is easy to form a filament.

Here, the bone meal may be added in the range of 1 to 40 parts by weight based on 100 parts by weight of the polymer resin, and if it is less than 1 part by weight, it is difficult to provide strength to the polymer resin, making it difficult to perform stable processing into filaments. On the other hand, when the amount of bone meal exceeds 40 parts by weight, the filament composition may start to deteriorate and cause a bad smell as it decays, and if the bone meal is mixed in an excessive amount, the filament composition is liquefied inside the body 110 of the extruder 100. Because it interferes, it becomes difficult to form into a flexible filament. For the above reasons, bone meal has an important critical meaning that should be included in 1 to 40 parts by weight (preferably 1 to 8 parts by weight, most preferably 5 parts by weight).

At this time, the particle size of the bone meal is preferably between 1 and 100㎛. If the particle size is less than 1㎛, the particles are too small to cause particle scatter during the process, which may increase the loss rate of the bone meal.If it exceeds 100㎛, the particle size of the bone meal is rather too large. The grain of bone meal should not be too large, as the surface of the filament may become uneven when extruded into a filament.

When the bone meal is prepared in this way, the bone meal itself is sterilized before being mixed with the polymer resin. The sterilization treatment of bone meal is an important task for environmental safety, and although the bone meal itself must be sterilized, a synergistic effect on the preservation of the bone meal due to charcoal is expressed. Any means capable of sterilizing and disinfecting bone meal can be applied, for example, ultraviolet disinfection, ozone sterilization, etc., and disinfectant spraying is also possible.

Third, when charcoal heats/burns wood such as oak and bamboo in the atmosphere, carbon, oxygen and hydrogen are combined with oxygen in the air to volatilize into carbon dioxide and water, leaving only a small amount of ash. In a container equipped with a gas outlet, air When the supply of gas is cut off and heated, it does not cause combustion and smokes (a form in which flame cannot be generated due to insufficient air supply or the concentration of flammable vapors decreases), and each element combines with each other to form various compounds, and then combines again. It refers to a solid product produced through the process of rapidly increasing the carbon content of the remaining solid material after volatilization as a complex compound through hypermetathesis. It is a composition that acts as a natural preservative through dehumidification and humidity control.

Charcoal is a complex carbonaceous polymer material containing about 80-90% of carbon and oxygen, hydrogen, and inorganic ash, and has a very large and porous surface area of about 100-300㎡ per gram. It is large, because the adsorption capacity of charcoal is carbonized and has a porous structure due to the fine pores generated.

In other words, since charcoal has a porous structure inside, it suppresses the occurrence of spoilage bacteria in the bone meal, removes the source of odor, and absorbs odor, so even if the filament composition contains bone meal, deterioration or decay does not proceed. .

In other words, charcoal is a nature-friendly material that is not affected by microorganisms, so it has less toxicity and irritation, and it has an antiseptic and antibacterial action because it can control humidity by adsorbing moisture by itself. Therefore, there is an advantage in that there is no need to use artificial preservatives for the embalming of bone meal.

Such charcoal is added in a powder form, and is preferably added in the range of 1 to 10 parts by weight based on 100 parts by weight of the polymer resin. If less than 1 part by weight of charcoal is added, it does not contribute to the antiseptic effect to the bone meal, and if it exceeds 10 parts by weight, it does not show more excellent preservative effect compared to the case where less than that amount is added. Since there is no need to do, it is advantageous in terms of production to be added in the range of 1 to 10 parts by weight.

In particular, since charcoal is composed of minerals along with bone meal, it is important to embalm bone meal efficiently while preventing physical property deformation even when mixed with bone meal.

Fourth, the additive is additionally added to the polymer resin for the blending power of bone meal and charcoal, and is composed of one or more of polyurethane (Polyurethane), polyethyleneimine (Polyethylenimine) and carboxymethyl cellulose (Carboxymethyl cellulose).

That is, the additive is added to improve the compatibility with polymer resin, bone meal and charcoal, and may be included in the range of 1 to 10 parts by weight based on 100 parts by weight of the polymer resin.If less than 1 part by weight, the polymer resin, bone meal and charcoal Additives are 1 to 10 because it does not help to improve the blending power of the resin, and does not allow the bone meal and charcoal to be stably adhered or emulsified to the polymer resin, and if it exceeds 10 parts by weight, it may cause a decrease in the physical properties of the filament composition. It is preferably added in parts by weight. In some cases, polyurethane, polyethyleneimine, and carboxymethyl cellulose may be appropriately mixed and used, and the amount to be mixed is not limited. However, it can be used in the range of 1 to 10 parts by weight even when only one of polyurethane, polyethyleneimine and carboxymethyl cellulose is used alone.

Polyurethane imparts an adhesive effect, and due to its adhesive properties, it is possible to improve the adhesion between bone meal and charcoal to the polymer resin.

Polyethyleneimine imparts a wet strength effect as well as an adhesion effect, and helps the antiseptic effect of bone meal by inducing substances such as oxygen present in the air to be adsorbed to the porous structure of charcoal.

Carboxymethyl Cellulose is an alkali cellulose reacted with chloroacetate to carboxymethylate the hydroxyl group of cellulose.It is chemically very stable and harmless/non-toxic, giving adhesive effect along with polyurethane and polyethyleneimine and helping to preserve bone meal. give.

Particularly, the adhesion effect of carboxymethyl cellulose is that since carboxymethyl cellulose acts as an emulsifying and dispersing agent, it helps to stably mix bone powder and charcoal into the polymer resin, thereby stabilizing the emulsion to bond the bone powder and charcoal to the polymer resin. It means that it acts to contribute to the improvement of sex.

Next, the second step is a step of manufacturing a filament composition by extruding a wire-shaped filament at 200 to 300°C (S20).

2 is an extruder 100 according to a preferred embodiment of the present invention. Referring to FIG. 2, it can be seen that the filament composition (A1) consisting of a polymer resin, bone meal, charcoal, and additives is shown as an extruder 100 to be made of a wire-shaped filament (A2). However, the extruder 100 shown in FIG. 2 is shown by way of example, and various types of extruders 100 may be used without being limited thereto.

That is, in the second step, the filament composition prepared in the first step is put into the main body 110 constituting the extruder 100, and the filament composition (A1) is installed inside the main body 110 by applying heat under a temperature condition of 200 to 300°C. It is made in a manner in which the filament A2 is drawn out through the nozzle 130 formed on the other side of the body 110 by being compressed while being moved from one side of the body 110 to the other side by the screw 120.

At this time, if the internal temperature of the main body 110 of the extruder 100 is less than 200°C, it is not only possible to uniformly mix bone meal, charcoal, and additives into the polymer resin because it is a low temperature to liquefy the pellets made of polymer resin. Through 130 cannot be withdrawn into a solid shape. On the other hand, if it exceeds 300°C, there is a concern that the physical properties of the filament composition injected into the body 110 may be deformed due to too high a temperature. Accordingly, only when the filament composition is extruded under a temperature condition of 200 to 300°C, a filament having a strong physical property is produced.

In this way, the filament drawn through the nozzle 130 may have a diameter in the range of 1.5 to 3 mm, and if the diameter of the filament is less than 1.5 mm, there is a limit to controlling the pressure pushing the filament from the nozzle 130, and exceeding 3 mm. Since there are various restrictions in performing precise 3D printing, it is preferable to manufacture by extruding a filament having a diameter in the range of 1.5 to 3 mm.

In addition, as a method of imparting color to the filament, it is divided into a method of undergoing a post-processing of coloring the finished filament and a method of putting a pigment together when the filament composition is injected into the main body 110 of the extruder 100. Color can be applied to the filament in a variety of ways depending on it.

Through the above-described process, a filament composition consisting of 1 to 40 parts by weight of bone meal, 1 to 10 parts by weight of charcoal for preservation of bone meal, and 1 to 10 parts by weight of additives, for 100 parts by weight of polymer resin, is extruded. By extruding at 200 ~ 300 ℃ through, a wire-shaped filament is completed.

Hereinafter, examples and comparative examples of the present invention will be described in more detail as follows.

<Example 1>

A filament composition consisting of 200 g of pellets made of ABS, 60 g of bone meal made of ash remaining after cremation of the ashes, 16 g of charcoal powder, and 16 g of carboxymethyl cellulose as an additive was introduced into a preheated extruder and then extruded to prepare a filament having a diameter of 2 mm.

<Comparative Example 1>

In the same conditions as in Example 1, a filament composition consisting of only 200 g of pellets made of a polymer resin was put into a preheated extruder and then extruded to prepare a filament having a diameter of 2 mm.

<Comparative Example 2>

In the same conditions as in Example 1, but the filament composition excluding only the charcoal powder was put into a preheated extruder and then extruded to prepare a filament having a diameter of 2 mm.

The components constituting the filament composition according to Example 1, Comparative Example 1 and Comparative Example 2 are summarized in Table 1 below.

Example 1 Comparative Example 1 Comparative Example 2 ABS 200g 200g 200g Bone meal 60g Nothing 60g Charcoal powder 16g Nothing Nothing Carboxymethyl cellulose 16g Nothing 16g Overall evaluation No decay and stable hardness Poor hardness Odor occurs, and more than 15% of corruption occurs.

Referring to Table 1 above, it was confirmed that the filament prepared through Example 1 did not spoil due to charcoal and that the hardness was stable due to bone powder, whereas Comparative Example 1 was made of ABS, which is a polymer resin. It was confirmed that the hardness was not stable compared to 1, and Comparative Example 2 had no components to prevent the preservation of bone meal, so it was confirmed that 15% of the filament spoilage occurred as the odor began to appear after a certain period of time. .

According to the above results, it can be seen that a filament composition in the form of a wire can be obtained by extruding a filament composition consisting of bone meal, charcoal, and additives obtained by pulverizing the ashes on a polymer resin.

This is a new memorial culture because it enables efficient preservation so that the bone meal that has been crushed by charcoal does not decay or odor occurs, and it is possible to 3D print the desired shape with the filament containing the bone meal of the deceased or companion animal. It is meaningful because it can create.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be interpreted by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: extruder
110: main body
120: screw
130: nozzle
A1: filament composition
A2: filament

Claims (4)

Based on 100 parts by weight of polymer resin,
1 to 40 parts by weight of bone meal obtained by crushing the ashes;
1 to 10 parts by weight of charcoal for preserving the bone meal; And
1 to 10 parts by weight of additives; 3D printer filament composition containing bone meal, characterized in that it contains. The method of claim 1,
The additive,
Polyurethane (Polyurethane), polyethyleneimine (Polyethylenimine) and carboxymethyl cellulose (Carboxymethyl cellulose) any one or more of the bone powder-containing filament composition for a 3D printer, characterized in that any one or more. A first step of preparing a filament composition consisting of 1 to 40 parts by weight of bone powder obtained by pulverizing the bone powder, 1 to 10 parts by weight of charcoal for preservation of the bone powder and 1 to 10 parts by weight of additives based on 100 parts by weight of the polymer resin; And
A second step of extruding the filament composition at 200 to 300° C. to produce a wire-shaped filament; a method of manufacturing a filament for a 3D printer using a filament composition for a 3D printer containing bone powder. Based on 100 parts by weight of the polymer resin, a filament composition consisting of 1 to 40 parts by weight of bone meal obtained by pulverizing the ashes, 1 to 10 parts by weight of charcoal for preservation of the bone meal and 1 to 10 parts by weight of additives was extruded at 200 to 300°C A filament for a 3D printer using a filament composition for a 3D printer containing bone powder, characterized in that it is in the form of a wire to be formed.

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