KR20200091185A - Composition for the long-term fibrosis of Korean paper and method of manufacturing Korean paper using the same - Google Patents

Abstract

According to an embodiment of the present invention, in a beating composition for long fiber conversion of Korean paper added to a beating process during a method for manufacturing Korean paper, the beating composition contains water and a softening agent, and the softening agent contains a surfactant, a stabilizer and purified water.

Description

Composition for the long-term fibrosis of Korean paper and method of manufacturing Korean paper using the same}

The present invention relates to a high-resolution composition for long fiberization of Korean paper and a method of manufacturing Korean paper using the same, more specifically, during the beating process of the Korean paper manufacturing method, it is short-fibered to reduce strength and loss due to fine powder. The present invention relates to a high-resolution composition for long-fibering of Korean paper added to improve the strength through long-fibering of Korean paper and a method of manufacturing Korean paper using the same.

In the case of doc fiber or abica, which is used as the main material for machine paper, it has been imported from abroad through only pulping and bleaching procedures.

In Korea, in order to use it in accordance with the purpose of the base paper, a confining process of dissociating fibers is used.

The beating process is a process of improving the bonding strength between fibers by softening the fibers by breaking the barriers of the fibers by putting the fibers in water and separating the fibers one by one by mechanical force using a machine called a knife beater.

In other words, as the rotating blade passes over the fixed blade, it is a device for cutting or fibrillating fibers by rubbing and tapping the fibers between the narrow gaps. When these fiber agglomerates pass through the grooves between the bar and the bar inside the calvator or between the blades, vortex and reflux by centrifugal force are generated and struck by the edges of the rotating blades, causing confession.

The above-mentioned confession process is the most power-consuming process in addition to the drying process in the paper-making process, and thus the energy reduction effect can be achieved as the consolidation process is reduced.

In addition, when the refining process is prolonged, the amount of fine fibers increases and loss of fibers as a raw material occurs.

Therefore, a method capable of producing high-quality Korean paper at a low altitude level while reducing energy consumed during high-confidence should be developed.

The present invention, designed to solve the above problems, is added to improve the strength through long fiberization of Korean paper to solve the problem that the strength decreases and loss due to fine powder occurs during the beating process of the Korean paper manufacturing method. It is to provide a high-resolution composition for the long fiber of Korean paper and a method of manufacturing Korean paper using the same.

In the high-resistance composition for long-fiber filing of Korean paper added to the refining process step of the Korean paper manufacturing process according to an embodiment of the present invention for solving the above problems, the high-resolution composition includes water and a softener, and the softener is Surfactants, stabilizers and purified water.

In addition, the high-resolution composition may include 93 to 97% by weight of water and 3 to 7% by weight of softener.

In addition, the softener may include surfactant 9 to 11% by weight, stabilizer 0.52 to 0.54% by weight, and purified water 88.44 to 90.48% by weight.

In addition, the surfactant is characterized in that the quaternary ammonium salt-based or higher alcohol-based.

In addition, the stabilizer is characterized in that ethanol.

In addition, the high-resolution composition further comprises an oil agent, and the oil agent comprises at least one of dimethyl silicone oil and methylphenyl silicone oil.

The refining composition according to the embodiment of the present invention may be added to the refining step in the refining process step to provide a method of manufacturing Korean paper, characterized in that refining is performed.

The high-resistance composition for long fiberization of Korean paper according to an embodiment of the present invention and the method of manufacturing Korean paper using the same can improve the strength of Korean paper through long fiberization of Korean paper by improving the refining process.

In addition, it is possible to produce high-density base paper with a low incidence of fines.

In addition, it is possible to produce high-quality machine paper by preventing secondary effects of high resolution.

In addition, productivity can be improved by reducing energy savings and reducing raw material loss due to a reduction in confession time.

1 is an exemplary view showing a state in which a refining composition for a long fiber of Korean paper according to an embodiment of the present invention is put into a refining process.
2(a) and 2(b) respectively show the results of measuring the addition and removal of the softener for each of the concentrations of the softener for long-fibering of Korean paper according to the embodiment of the present invention and the results of measuring the addition and removal of the concentration of NaCl (sodium chloride). It is a graph.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various conversions may be applied and various embodiments may be provided. In addition, it should be understood that the contents described below include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning to themselves, and are used only to distinguish one component from other components.

The same reference numerals used throughout this specification denote the same components.

The singular expression used in the present invention includes the plural expression unless the context clearly indicates otherwise. In addition, terms such as “include”, “have” or “have” described below are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. It should be interpreted and understood to not preclude the existence or addition possibility of one or more other features, numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. In general, the nomenclature used herein is well known and commonly used in the art.

As used herein, the term “composition” is considered to include products that include a particular component, as well as any product that is made directly or indirectly by combination of a particular component.

In the process of manufacturing Korean paper, the crushing process adds fibers to water and separates the fibers one by one by mechanical force using a machine called a knife beater. It is fair.

In other words, as the rotating blade passes over the fixed blade, it is a device for cutting or fibrillating fibers by rubbing and tapping the fibers between the narrow gaps. When these fiber agglomerates pass through the grooves between the bar and the bar inside the calvator or between the blades, vortex and reflux by centrifugal force are generated and struck by the edges of the rotating blades, causing confession.

The above-mentioned confession process is the most power-consuming process in addition to the drying process in the paper-making process, and thus the energy reduction effect can be achieved as the consolidation process is reduced.

In addition, when the refining process is prolonged, there is a problem in that the amount of fine fibers increases and the loss of fibers as a raw material occurs.

In order to improve this, the present invention can be performed by adding the condensation composition of the present invention to the confession at the refining process step so that long fibrosis can be achieved while reducing the refining process time and generation of fines.

The high-resolution composition for long fiberization of Korean paper according to an embodiment of the present invention may include water and a softener.

At this time, it may include 93 to 97% by weight of water, 3 to 7% by weight of softener.

When the softener is mixed with water in less than 3% by weight, it is difficult to obtain a long fiber, a reduction in fine powder and a shortening process time, and when mixed with water in excess of 7% by weight, paper fibers of Korean paper are stagnant by bubbles. Poor circulation in the confession period can adversely affect confession.

Therefore, it may be most desirable to add 5% by weight softener to water and add it to the refining process step.

The softener may include a surfactant, stabilizer and purified water.

At this time, the softener may include 9 to 11% by weight of a surfactant, 0.52 to 0.54% by weight of a stabilizer, and 88.44 to 90.48% by weight of purified water.

The surfactant may be a quaternary ammonium salt-based or higher alcohol-based.

Quaternary ammonium salt type is the salt of the quaternary ammonium ions caused by combining groups of four hydrocarbon to the nitrogen atom, for example, ^{_{(CH 3) 4 N + Cl}} -. Many nitrogen atoms in the heterocycle form double bonds between neighboring carbon atoms, and many compounds have a quaternary ammonium salt structure in the ring. For example, a pyridinium salt can be mentioned.

In other words, the quaternary ammonium salt system has sterilization, disinfection and preservation power, and can be prevented from being short-fibered in the condensation process when used in the present invention.

The higher alcohol type means that the aliphatic alcohol contains 6 or more carbon atoms, and an aliphatic alcohol having 12 to 16 carbon atoms may be used.

The foaming power increases toward the 12th side, and the cleaning power increases toward the 16th side.

When 12 is carbon, it is palm kernel oil, and when it is 16, palm oil is produced. In the present invention, it is preferable to use it as a commercial power, so it is good to use palm kernel oil having a good caustic ratio.

For reference, high quality does not indicate quality, which means that a relatively large number of carbons of aliphatic alcohols are used as hydrophobic sites. That is, since at least 10 or more carbon alcohols are used, an advanced vocabulary is used, and it can be said that it is precisely sodium lauryl sulfate.

In the present invention, the surfactant may be added in an amount of 9 to 11% by weight, and when the surfactant is added in an amount of less than 9%, the fiber separation does not proceed, and a short fiberization phenomenon in which the fiber length decreases occurs due to an increase in the beat time.

When it is added in excess of 11% by weight, bubbles are generated in the upper part of the solution, and fibers are stagnant between the solution and the bubbles, causing the problem that the fibers do not pass through the blade of the beater.

Therefore, the surfactant is preferably added 9 to 11% by weight, more preferably 10% by weight can be added.

The stabilizer is an additive added to prevent deterioration such as compounds, and may be ethanol in the present invention.

In the present invention, the stabilizing agent may be added in 0.52 to 0.54% by weight, and when added to less than 0.52% by weight, there is a problem in the effect expression of the entire fiber in solution, and when added in excess of 0.54% by weight, it is diluted due to high viscosity There may be a problem.

Therefore, the stabilizer is preferably added 0.52 to 0.54% by weight, more preferably 0.53% by weight can be added.

Purified water is used to liquefy the softener by diluting the surfactant and stabilizer, so it can be added at a weight percent other than the surfactant and stabilizer.

It is preferable to add 88.44 to 90.48% by weight of purified water.

In addition, the high-resolution composition of the present invention may further include an oil agent, and the oil agent may include at least one of dimethyl silicone oil and methylphenyl silicone oil.

The oil agent has a defoaming effect that spreads easily on the surface of various substances, and has a releasability and non-adhesive effect to prevent fine foreign substances from adhering to the fibers.

In addition, it has good heat resistance and has a common effect of not contaminating molds or molding materials.

In addition, when describing other effects of the dimethyl silicone oil and the methylphenyl silicone oil, the dimethyl silicone oil has an effect of preventing gloss and sealing, and thus, in the present invention, it can serve as a protective film on the outer surface of the fiber to improve the strength of the fiber.

Methylphenyl silicone oil has good oxidation resistance and chemical resistance, and has an excellent effect on thermal oxidation.

In the present invention, it can serve as a protective film on the outer surface of the fiber to improve the strength of the fiber, and heat resistance to protect even at high temperatures.

The dimethyl silicone oil and the methylphenyl silicone oil may be used singly as an oil agent, but preferably, 0.2 to 0.4% by weight of dimethyl silicone oil and 0.2 to 0.4% by weight of methylphenyl silicone oil are mixed, and each individual individual besides the same effect. Even effects can be expressed.

That is, in the total weight of the refining composition, the oil agent may be added in an amount of 0.4 to 0.8% by weight, and less than 0.4% by weight and more than 0.8% by weight may not exhibit the effect.

Reduction of fiber length, microfiber generation, external and internal fibrillation, which is a problem expressed by the refining process as the refining process is added to the refining process step of the Korean paper manufacturing method according to the embodiment of the present invention described above The back can be eliminated.

That is, when the mechanical action is applied to the mulberry fiber, the fiber is cut (single fibrosis), the outer cell wall is peeled off (external fibrillation), or the inside of the cell wall is separated into several layers (internal fibrillation), or separated into fine pieces. Various changes such as coming out (the generation of microfibers) occur, which are also called primary effects of confession, and in addition to the primary effects of confession, fibers are twisted, twisted, folded, split in the longitudinal direction, and doc fibers are longitudinal. As a result, various changes such as elongation or compression and partial lysis of cell wall components may also occur. This is referred to as the secondary effect of the confession, and referring to FIG. 1, the primary effect of the confession is to add the confessional composition of the present invention to the confession and proceed to the confession, thereby preventing the occurrence of the secondary effect of the confession as it is prevented. It is possible to produce machine paper with improved quality more quickly.

Hereinafter, the above-described materials and the optimum mixing ratio will be demonstrated through a number of experimental examples.

Hereinafter, the experimental examples to be carried out are presented to aid understanding, and are merely illustrative of the present invention, and the scope of the present invention is not limited to the following experimental examples.

[ Experimental Example 1] Yeosu-do for shortening effect CSF ) Measure

In this experiment, the experiment was conducted as follows to find out the effect of shortening the confession time through the measurement of Yeosu.

Experiments using the freeness tester (freeness tester) Examples (softener 3,5,7% by weight, water 97,95,93% by weight mixed), Comparative Examples 1 (untreated) and 2 (NaCl 1,2,3 Weight%, water 99,98,97% by weight), respectively, was performed for 30 minutes, 60 minutes, and 90 minutes.

Yeosu measurement conditions and measurement results are shown in Table 1 and FIG. 2 below.

time 30 minutes 60 minutes 90 minutes medicine(%) Comparative Example 1
(Unprocessed) - - - Example
(Softener + water) 3 5 7 3 5 7 3 5 7 Comparative Example 2 (NaCl + water) One 2 3 One 2 3 One 2 3 CSF measurement result (ml) Comparative Example 1
(Unprocessed) 620 580 540 Example
(Softener + water) 610 600 600 560 540 540 500 490 495 Comparative Example 2 (NaCl + water) 615 620 620 575 570 570 535 540 540

As shown in Table 1 and Figure 2, Comparative Example 1 (untreated) became 540 ml after 90 minutes of the process of consolidation, and Comparative Example 2 (NaCl) also had 2% NaCl as in Comparative Example 1 When mixing the% with water and proceeding the refining process 90 minutes becomes 540 ml, while 5 ml of the example softener is mixed with water, the refining process is the same as the comparative example 1 and 2 in 60 minutes. It can be seen that there is an effect of shortening.

In addition, referring to FIG. 2, in the case of NaCl (sodium chloride) mixed in Comparative Example 2, it can be seen that the change in concentration does not change rapidly, so the effect of shortening the refining process is insufficient.

[ Experimental Example 2] Fine powder Paper thickness according to generated amount

In this experiment, Examples and Comparative Examples 1 and 2 were used to investigate the thickness of the paper according to the amount of fine powder generated.

Experiments (Example: 5% by weight of softener, 95% by weight of water mixed), Comparative Examples 1 (untreated) and 2 (5% by weight of NaCl, 95% by weight of water) by hour (30 minutes, 60 minutes, 90 minutes), respectively The generated fine powder content (g) was measured, and the paper thickness was measured accordingly.

The results are shown in Tables 2 and 3, respectively.

Condition Fine powder generation (g) One 30 minutes Comparative Example 1 (untreated) 0.555 Example (softener + water) 0.43 Comparative Example 2 (NaCl + water) 0.46 2 60 minutes Comparative Example 1 (untreated) 0.75 Example (softener + water) 0.45 Comparative Example 2 (NaCl + water) 0.515 3 90 minutes Unprocessed 0.77 Example (softener + water) 0.39 Comparative Example 2 (NaCl + water) 0.63

Condition Measurement (mm) Average One 2 3 Example (softener + water) 0.08 0.06 0.07 0.07 Comparative Example 1 (untreated) 0.10 0.10 0.10 0.10 Comparative Example 2 (NaCl + water) 0.10 0.09 0.08 0.09

As shown in Table 2, it can be seen that the Examples have less fine powder content than Comparative Examples 1 and 2 at all time (30 minutes, 60 minutes, 90 minutes) conditions, and the thickness of the paper shown in Table 3 is also compared with the examples. It can be seen that it is formed thinner than Examples 1 and 2.

It is understood that the fine powder generation rate was reduced through softening of the fiber during the refining process, and the thickness of the base paper was also formed thinner as Examples became higher density than Comparative Examples 1 and 2.

In other words, the incidence of fine powder is reduced by the long fiber, and the density is increased, so that the thickness of the base paper is also thin, so that high-quality machine paper can be produced.

[ Experimental Example 3] Fiber strength measurement (heat resistance)

In this experiment, the experiment was conducted as follows to find out the effect of heat resistance through fiber strength measurement.

The experiment was carried out in the step of refining process (addition of 0.6% by weight of an oil agent (addition of 0.3% by weight of dimethyl silicone oil, 0.3% by weight of methylphenyl silicone oil) to a high concentration composition containing 5% by weight of softener and 95% by weight of water) The machine hanji (horizontal X length: 10cm X 10cm) prepared by proceeding with the machine hanji (horizontal X length: 10cm X 10cm) prepared by Comparative Example 1 (untreated) was placed on a 500°C fire for 10 seconds and 20 seconds, respectively. It was carried out by heating for 30 seconds.

The experimental results are shown in Table 4 below.

10 seconds 20 seconds 30 seconds Example (water + softener + oil agent) Some combustion Some combustion Complete combustion Comparative Example 1 (untreated) Complete combustion Complete combustion Complete combustion

As shown in Table 4 above, it can be seen that the time for complete combustion was delayed in Example compared to Comparative Example 1.

Therefore, when the oil agent of the present invention is added to proceed with the refining process, the heat resistance is superior to that of the untreated case, and there is an effect that can withstand high temperatures.

The embodiments of the present invention have been described with reference to the accompanying drawings, but a person having ordinary knowledge in the technical field to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You will understand. Therefore, the above-described embodiment is illustrative in all respects and is not limiting.

Claims (6)

In the high-resistance composition for the long fiber of Korean paper added to the refining process step in the manufacturing method of Korean paper,
The confessional composition,
Contains water and softeners,
The softener,
High resolution composition for long fiberization of Korean paper containing surfactant, stabilizer and purified water.
According to claim 1,
The confessional composition,
High-resolution composition for long fiberization of Korean paper containing 93 to 97% by weight of water and 3 to 7% by weight of softener.
According to claim 1,
The softener,
A high-resolution composition for long fiberization of Korean paper containing 9 to 11% by weight of a surfactant, 0.52 to 0.54% by weight of a stabilizer, and 88.44 to 90.48% by weight of purified water.
According to claim 1,
The surfactant,
High-grade composition for long fiberization of Korean paper, characterized in that it is a quaternary ammonium salt-based or higher alcohol-based.
According to claim 1,
The stabilizer,
A high-resolution composition for long fiberization of Korean paper, characterized in that it is ethanol.
A method of manufacturing Korean paper according to any one of claims 1 to 5, characterized in that the refining composition of any one of claims 1 to 5 is added during the refining process to proceed with refining.

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