JP2008120988A - Process for producing natural binder for ink preparation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a process for producing a natural binder for ink preparation that does not give off a volatile organic compound and generates a large amount of far-infrared rays and negative ions beneficial to a human body. <P>SOLUTION: The process for producing a natural binder for ink preparation comprises: a step of producing a mixture by mixing a natural resin, a starch, bamboo charcoal, a liquid extract of onion and ethanol; a step of producing a nanocomposition by nanomilling the mixture; a step of producing a gel composition by mixing the nanocomposition and water as a solvent and stirring for a given period of time; a step of separating the gel composition into a slurry and a supernatant liquid by quenching the gel composition; a step of recovering a binder being the slurry by filtering the slurry and the supernatant liquid respectively; and a step of aging the binder at an ordinary temperature. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for producing a natural binder contained in ink used for coloring various sanitary goods and printing a pattern, and more particularly, since it does not contain an organic solvent, it is harmful to humans. The present invention relates to a method for producing a natural binder for ink production that does not release a volatile organic compound, but emits a large amount of far infrared rays and negative ions.

Various types of hygiene products such as baby diapers, tissue paper, sanitary napkins are used in large numbers when people live hygienic.
In order to improve the merchantability in the manufacturing process of such sanitary goods, the sanitary goods are colored using dyes or patterns are printed, but the cost for coloring and printing is reduced. In addition, the synthetic ink is mainly used to color sanitary goods or to print patterns.

  Such an ink is composed of a colored dye for producing a color, a binder made of a synthetic resin material that gives an adhesive force so that the dye is adhered to a sanitary product, and a solvent that dissolves the dye and the binder. As mentioned above, since the binder of the conventional synthetic resin material contained in the ink used for manufacture of sanitary goods is synthesized and manufactured using an organic solvent, from the ink containing the binder, Volatile organic compounds such as formaldehyde, which are harmful to the human body, are emitted to adversely affect the human body.

  In particular, sanitary products such as baby diapers, tissue paper, sanitary napkins, etc. are in direct contact with sensitive parts of the human body, so they are colored with ink containing binders made of conventional synthetic resin materials. The sanitary article on which the pattern is printed has a problem that it emits volatile organic compounds and has a serious adverse effect on human health.

For example, Patent Literature 1 discloses a water-based antibacterial ink for printing that includes a polyvinyl acetal resin as a binder, a coloring dye, an antibacterial agent, and a solvent, and the solvent is a mixed solvent of water and alcohol.
Such a water-based antibacterial ink for printing has antibacterial properties, and even if a mixed solvent of water and alcohol is used as a solvent, it is water-based for printing depending on the organic solvent used for the synthesis of the polyvinyl acetal resin as a binder. There is a problem in that sanitary products in which a volatile organic solvent is emitted from an antibacterial ink and coloring is performed using the ink or a pattern is printed adversely affect the health of the user.
Korea Patent Publication No. 2005-5570 Specification

  An object of the present invention is to produce a nano composition by nano-pulverizing a mixture of natural resin, starch, bamboo charcoal, onion extract, and ethanol, and mixing and stirring the nano composition and water to form a gel composition The gel composition is rapidly cooled and filtered to recover the slurry binder, and the binder is aged so that no organic solvent is contained, so that no volatile organic compounds are released. Another object of the present invention is to provide a method for producing a natural binder for ink production that releases a large amount of far infrared rays and negative ions useful for the human body.

  In order to solve the above-described object, a method for producing a natural binder for ink production according to an embodiment of the present invention includes a step of preparing an onion extract and starch 15 based on 100 parts by weight of natural resin powder. 25 parts by weight, 5 to 10 parts by weight of bamboo charcoal powder, 5 to 15 parts by weight of onion extract, and 5 to 10 parts by weight of ethanol are prepared, and the mixture is nano-sized for 30 to 40 minutes. Pulverizing to produce a nanocomposition of 2000 to 4000 mesh, mixing the nanocomposition with the same amount of water as the natural resin powder to produce a nanoaqueous solution, and removing the nanoaqueous solution from 15 hours A step of producing a gel composition by stirring for 18 hours, a step of rapidly cooling the gel composition to room temperature to separate it into a slurry and a supernatant, and a gel separated into the slurry and the supernatant It was filtered Narubutsu, and a step of recovering the binder is a slurry, a step of aging the binder at ambient temperature, the.

(The invention's effect)
Since the natural binder for ink production according to the present invention does not contain an organic solvent, it does not release volatile organic compounds and releases a large amount of far infrared rays and negative ions useful for the human body. It can improve the health of users who use sanitary products manufactured from contained ink.
In addition, sanitary products colored with the natural binder for ink production of the present invention absorb electromagnetic waves and continuously release the natural scent of pine needles to users who use sanitary products. Satisfaction can be given.

Hereinafter, preferred embodiments of a method for producing a natural binder for producing ink according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a flowchart showing a method for producing a natural binder for ink production according to an embodiment of the present invention.
As shown in FIG. 1, first, an onion extract, which is one of raw materials for constituting a natural binder for ink production according to an embodiment of the present invention, is prepared (S10).

  Onion, which is one of the raw materials of the natural binder for ink production, contains compounds such as propyl disulfide and allyl sulfide, promotes secretion of digestive juice, and has effects such as excitement, sweating and diuresis. In addition to various vitamins, it contains a large amount of minerals such as calcium and phosphate, and acts to remove harmful substances in the blood. Quercetin, a pigment component, prevents lipid spoilage and prevents hypertension. There is an effect. In addition, the onion skin contains allicin, which has a strong sterilization and fungus control function, and is the most excellent of the fungus control effect among natural foods. Reducing the need for mild mold inhibitors.

In this embodiment, pulverized onion by pulverizing the onion with the skin peeled off, the pulverized onion is filtered to collect the liquid onion extract, The recovered onion extract is placed in a mixture for producing a natural binder for ink production.
Based on 100 parts by weight of the natural resin powder as a main component, 15 to 25 parts by weight of starch, 5 to 10 parts by weight of bamboo charcoal powder, 5 to 15 parts by weight of onion extract, and 5 to 10 parts by weight of ethanol are mixed. To produce a mixture (S20).

First, in order to produce a natural binder for ink production, a natural resin that provides bonding strength is added to the mixture.
As described above, the natural resin that forms the main component of the mixture is a resin that is formed by volatilizing the volatile components of the sap, such as Matsutsu, that flows out from the trunk of the tree, and solidifying the remaining components. There are rubber, copal, sandalak rubber, chicle, gelton, and solver.

The starch contained in the mixture together with the natural resin is a natural adhesive selected from the group consisting of sweet potato starch and corn starch, which gives the mixture a bonding force and promotes the gelation of the mixture.
If the starch content in the mixture is less than 15 parts by weight, the mixture is difficult to gel, and if the starch content exceeds 25 parts by weight, the concentration and viscosity of the mixture are too high. The yield of binder recovered from the gel composition is reduced.

Bamboo charcoal contained in the mixture has a very large specific surface area and is porous, so it has excellent functions of adsorbing various harmful substances and deodorizing function, and not only releases a large amount of far infrared rays and negative ions. It also has the function of shielding electromagnetic waves.
If the content of bamboo charcoal powder contained in the mixture is less than 5 parts by weight, the function of adsorbing and deodorizing harmful substances of the natural binder for ink production produced by the mixture is lowered, and the content of bamboo charcoal powder is 10 parts by weight. If it exceeds 1, natural resin powder and starch may be aggregated in the bamboo charcoal powder particles.

Further, 5 to 15 parts by weight of the onion extract prepared in S10 is added to the mixture.
If the content of the onion extract contained in the mixture is less than 5 parts by weight, the pharmacological functions peculiar to onions and the sterilization and fungus control functions of onion skin are reduced, so the binder is easily altered, and the onions If the content of the extract exceeds 15 parts by weight, the concentration of the mixture increases, so that the yield of the binder recovered from the gel composition produced by the mixture decreases.

Further, in order to prevent the mixture and the natural binder for ink production produced from the mixture from being deteriorated, ethanol that provides an antiseptic function is added to the mixture.
If the ethanol content in the mixture is less than 5 parts by weight, the preservability of the natural binder for ink production will decrease, and if the ethanol content exceeds 10 parts by weight, the density of the mixture will decrease and ink production will occur. The mechanical properties of natural binders for use are reduced.

Further, in the step of producing the mixture as described above, the mixture can be produced by further mixing 5 to 10 parts by weight of the negative ion liquid composition with respect to 100 parts by weight of the natural resin.
If the content of the negative ion liquid composition contained in the mixture is less than 5 parts by weight, the amount of released far infrared rays and negative ions of the natural binder for ink production produced from the mixture is reduced, and the negative ion liquid state is reduced. If the content of the composition exceeds 10 parts by weight, the concentration and viscosity of the mixture are too high, and the yield of the binder recovered from the gel composition produced from the mixture decreases.

Such a liquid composition of negative ions is composed mainly of sericite and kiyoishi.
The sericite, the main component of the negative ion liquid composition, is a substance that emits 90% or more of far infrared rays that promote the blood circulation of the human body and activate the cell activity, and emits strong negative ions. The function to adsorb various harmful substances.

  Kiyoishi is a substance that emits most negative ions (24.140 ed / cc.sec) among feldspars, and emits most infrared rays (96%) at 25 ° C. at room temperature. is there. Such Kiyoishi is an ore that exhibits a high surface-active effect and increases the α wave in the electroencephalogram in a large amount, increasing the blood flow rate by 4.9%, while reducing the blood flow velocity by 7.2%. .

A negative ionic water mixed solution is produced by mixing 40 to 60 parts by weight of negative ion powder selected from the group consisting of sericite and kiyoseki and 100 parts by weight of water.
If the content of the negative ion powder is less than 40 parts by weight with respect to 100 parts by weight of water during the manufacturing process of the negative ion water mixture, the concentration of the negative ion powder is reduced and the amount of emitted far infrared rays is reduced. If the content of sericite powder exceeds 60 parts by weight with respect to 100 parts by weight of water, waste due to excessive use of negative ion powder occurs.

The negative ionic water mixed solution produced as described above is nano-pulverized with a nanopowder and the nano-pulverized negative ionic water mixed solution is allowed to stand for a predetermined time to separate into a slurry and a supernatant.
By filtering the slurry and the supernatant liquid, a negative ion liquid composition which is a supernatant liquid is recovered and used for producing a mixture.

Further, in the step of producing the mixture, the mixture can be produced by further mixing 5 to 10 parts by weight of the pine needle extract with 100 parts by weight of the natural resin.
If the content of the pine needle extract contained in the mixture is less than 5 parts by weight, the amount of negative ions released from the natural binder for ink production produced from the mixture is reduced, and the content of the pine needle liquid extract is 10% by weight. If the amount exceeds 50 parts, the mechanical properties of the natural binder for ink production produced from the mixture are lowered.

  Pine needles are rich in terpene phytoncides, and as such, they generate negative ions and are rich in vitamins and minerals that are beneficial to the human body. Moreover, pine needles add a scent of pine needles to a natural binder for ink production, giving satisfaction to users who use sanitary products manufactured from the natural binders.

Such pine needles are washed and dried naturally until the surface is free of moisture, and the dried pine needles are pulverized to produce a pine needle pulverized product. A pine needle extract is collected and used to make a mixture.
The mixture mixed with the components and contents as described above is nano-ground at a high speed of 1000 rpm or more to produce a nano composition including a powder having a very fine particle size (S30).

More specifically, the mixture is placed in a nanopowder and nano-ground at 7000 rpm for 30 to 40 minutes to produce a nanocomposition of 2000 to 4000 mesh.
If the time to nano-grind the mixture is less than 30 minutes, the mixture is not nano-ground well, and if the time to nano-grind the mixture is 40 minutes, the components contained in the mixture are gelated. Nano-milled with 2000-4000 mesh sufficient.

The nano composition as described above is mixed with the same amount of water as the natural resin powder used in S20 to prepare a nano aqueous solution (S40).
The nano-aqueous solution produced as described above is stirred under predetermined conditions to produce a gel composition (S50).
More specifically, the nano aqueous solution is stirred at 85 to 90 ° C. for 15 to 18 hours to gel the components contained in the nano aqueous solution to produce a gel composition.
If the temperature at which the nano aqueous solution is gelled is less than 85 ° C., the nano aqueous solution will not be gelled well, and if the temperature at which the nano aqueous solution is gelled exceeds 90 ° C., it will be transformed during the gelation of the nano aqueous solution. There is a possibility.

If the nano aqueous solution is gelled for less than 15 hours, the nano aqueous solution is not sufficiently gelled, and if the nano aqueous solution is gelled for more than 18 hours, the gel composition is cured, It may be difficult to separate the slurry and the supernatant.
The gel composition gelled as described above is rapidly cooled to room temperature and separated into a slurry and a supernatant (S60).

More specifically, if the gel composition gelled in S50 is forcibly quenched to room temperature with a quencher, the gel composition is separated into a slurry and a supernatant. At this time, the gel composition can be completely separated into the slurry and the supernatant liquid only when the gel composition is rapidly and rapidly cooled from 21 ° C. to 25 ° C. Since the yield of the binder which is a slurry from a gel composition can be improved to the maximum, it is desirable.
The gel composition that has been cooled and separated into the slurry and the supernatant liquid as described above is filtered to recover the binder that is the slurry (S70).
The recovered binder is aged at room temperature to produce a natural binder for ink production (S80).
The binder aging step is desirable because the bonding force of a natural binder for ink production can be maximized only after the binder is aged for 22 to 24 hours.
The ink for manufacturing sanitary goods is manufactured by adding the natural binder for ink manufacturing manufactured as described above to the manufacturing process of the ink for printing sanitary goods.

  Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments of the present invention. However, the following examples are for specifically illustrating the present invention, and the present invention is not limited to these examples.

(Example 1)
1. The onion with the skin peeled is crushed to produce a crushed onion, the pulverized onion is filtered, the liquid onion extract is recovered, and the onion extract is obtained. Got ready.
2. A mixture was prepared by uniformly mixing 1000 g of natural resin powder, 200 g of sweet potato starch, 100 g of bamboo charcoal powder, 100 g of onion extract, and 100 g of ethanol.
3. The mixture was nano-pulverized for 40 minutes with a nanopowder device (model name: HMZ-70DN homogenizer manufactured by Toyobayashi Corporation, Korea) to prepare a nano composition.
4). The nano composition was mixed with 1000 g of purified water to prepare a nano aqueous solution.
5. The nano aqueous solution was put into a heating mantle stirrer (manufactured by Korea Fulin Co., Ltd., model name: HM1-B10L), and stirred at 85 ° C. and 500 rpm for 16 hours to produce a gel composition.
6). The gel composition was forcibly quenched to 25 ° C. with a quencher and separated into a slurry and a supernatant.
7). By filtering the gel composition separated into the slurry and the supernatant, the binder as the slurry was recovered.
8). The binder was aged at room temperature for 24 hours to produce a natural binder for ink production.

The natural binder for ink production produced as described above was sealed and shipped.
An anion release experiment was conducted on a natural binder for ink production manufactured according to the above example and a conventional synthetic resin binder as a comparative example. The negative ion release experiment was performed based on KICM-FIR-1005, which is a negative ion release test method commonly used in the Korea Building Materials Research Institute.
Results of negative ion release experiments for the examples and comparative examples of the present invention are shown in the comparison table of FIG.

Please refer to FIG. FIG. 2 shows a comparative table of negative ion release experimental results for natural binders for ink production.
According to the comparison table of FIG. 2, the amount of negative ions released from the natural binder for ink production produced according to the present invention is remarkably increased as compared with the comparative example.

(Example 2)
With respect to the natural binder for ink production produced according to Example 1, a detection experiment of formaldehyde (HCHO), which is a representative substance among volatile organic compounds, was performed. The formaldehyde detection experiment was performed with EPA8315A, which is a formaldehyde detection experiment method commonly used in the Korea Chemical Research Institute, and as a result, no formaldehyde was detected from the natural binder for ink production of the above example.
As in Examples 1 and 2 above, the natural binder for ink production according to the present invention released a large amount of negative ions useful for the human body and no formaldehyde harmful to the human body was detected. Was confirmed.

  Although the present invention has been described with reference to the preferred embodiments of the present invention, those skilled in the art will appreciate that various embodiments can be made without departing from the spirit and scope of the present invention described in the claims. It will be appreciated that modifications and changes can be made.

The flowchart which shows the manufacturing method of the natural binder for ink manufacture which concerns on one Example of this invention. Comparison table of negative ion release experiment results for natural binders for ink production.

Claims (8)

Preparing an onion extract; and
A mixture is produced by mixing 15 to 25 parts by weight of starch, 5 to 10 parts by weight of bamboo charcoal powder, 5 to 15 parts by weight of onion extract, and 5 to 10 parts by weight of ethanol based on 100 parts by weight of natural resin powder. Process,
Nano-grinding the mixture for 30-40 minutes to produce a 2000-4000 mesh nanocomposition;
Mixing the nanocomposition with the same amount of water as the natural resin powder to produce a nanoaqueous solution;
Stirring the nano-aqueous solution for 15 to 18 hours to produce a gel composition;
Quenching the gel composition to room temperature and separating it into a slurry and a supernatant;
Filtering the gel composition separated into the slurry and the supernatant and recovering the binder as a slurry;
A process for aging the binder at room temperature, and a method for producing a natural binder for ink production. The step of preparing the onion extract is a step of pulverizing the onion to produce a pulverized onion,
The method for producing a natural binder for ink production according to claim 1, further comprising a step of filtering the pulverized onion and recovering a liquid onion extract.   The natural binder for ink production according to claim 1, wherein the starch is selected from the group consisting of sweet potato starch and corn starch.   The method for producing a natural binder for ink production according to claim 1, wherein 5 to 10 parts by weight of a negative ion liquid composition is further mixed in the step of producing the mixture. The production process of the negative ion liquid composition includes:
Mixing negative ion powder 40 to 60 parts by weight selected from the group consisting of sericite and kiyoishi with respect to 100 parts by weight of water to produce a negative ion water mixture;
A step of nano-pulverizing the negative ion water mixture and leaving it to separate into a slurry and a supernatant;
The method for producing a natural binder for ink production according to claim 4, further comprising a step of filtering the slurry and the supernatant to recover a negative ion liquid composition which is a supernatant.   The method for producing a natural binder for ink production according to claim 1, wherein 5 to 10 parts by weight of pine needle extract is further mixed in the step of producing the mixture. The pine needle extract is a step of pulverizing pine needles to produce a pine needle pulverized product,
The method for producing a natural binder for ink production according to claim 6, further comprising a step of filtering the pulverized pine needles to collect a liquid pine needle extract.   The method for producing a natural binder for ink production according to claim 1, wherein in the step of producing the gel composition, the gelation temperature is 85 to 90 ° C.

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