KR101527553B1 - Pressing-drying method of plants - Google Patents

Abstract

More particularly, the present invention relates to a method of compacting and drying a plant, in which a plant is placed between absorbent paper, a sheet, and a film, And particularly relates to a method of squeezing and drying a plant which is very useful for producing " pressed ".
According to the present invention, a plant can be squeezed and dried in a large amount in a short time, and a dry plant of excellent quality can be obtained. Particularly, in the case of flowering grass, peat, cadmium, hemp, fern, viola, a very good quality dried body can be obtained in each region.
The plant squeeze-drying method of the present invention is expected to contribute greatly to the industrial development such as interior decoration and jewelry by using the press.
The present invention reveals that this is the result of research carried out by the Small & Medium Business Administration's joint research and development project (No. C0027875).

Description

{Pressing-drying method of plants}

More particularly, the present invention relates to a method of compacting and drying a plant, in which a plant is placed between absorbent paper, a sheet, and a film, And particularly relates to a method of squeezing and drying a plant which is very useful for producing " pressed ".

The present invention reveals that this is the result of research carried out by the Small & Medium Business Administration's joint research and development project (No. C0027875).

Dried flowers are processed for the purpose of decorating, etc. after processing various parts such as flowers, fruits, stems, leaves, branches, bark, roots, pods, seeds, . This drying can be largely divided into dry flower, press, and potpourri. Pressing flower is pressed and dried by a physical method. In the meantime, about 10 domestic producers have not been able to go beyond the level of the domestic industry except for some companies, and there are few processing facilities, Because it depends on the natural drying method, it usually takes 7 to 8 days or more, or the manufacturing cost itself is suffering due to high labor cost.

The conventional plant drying method is mainly a squeezing method. Before the drying sheet coated with calcium chloride is exposed, the plant sample is selected, collected, placed between well-dried newspapers, the top surface of the newspaper is covered with corrugated cardboard, Other plant specimens were placed between newspapers, covered with corrugated cardboard, laminated as many plants as the number of plants to be produced, placed on top of a rectangular wooden plate, wrapped with a string, and then pressed with a brick to dry. In Japan, where the pressing industry is active, 'dry sheet', which can shorten plant drying time, has been developed and introduced into Korea, thus dramatically shortening plant drying time. Drying method was to put dry sheet and absorbent paper in place of newspaper to absorb moisture in a short period of time, and to change the wet dry sheet to dry sheet frequently to remove moisture artificially. This is also due to the pressing of the natural drying and the replacement of the dry sheet, and the drying time takes up to 7 ~ 8 days. Due to the high cost of the dry sheet, which is dependent on the whole amount, It is expensive and has been an obstacle to activating plant drying studies.

Although a variety of dry sheets have been developed for plant drying, rapid drying and mass-production require development of fundamental drying methods rather than dry sheets.

Accordingly, the present inventors have made extensive efforts to develop a drying method capable of rapidly drying the plant, while maintaining the inherent characteristics of the plant, while solving the problems of the plant drying method such as the conventional pressing method. As a result, it has been confirmed that the plant can be crushed and dried very quickly in the case of using the water absorbent member such as the dry sheet and the absorbent paper, the heat pressing using the heating plate and the hot air drying, .

In addition, through various studies using this method, conditions such as the temperature of the heating plate, the pressing force, the temperature of the hot air, and the drying time can be confirmed according to the type and the area of the plant.

Accordingly, it is a main object of the present invention to provide a method for crushing and drying a plant in a large amount in a short period of time while maintaining the inherent characteristics of the plant.

According to one aspect of the present invention, there is provided a plant squeeze-drying method for pressing a plant by pressing, comprising the steps of charging a laminated member in which a plant is interposed between a plurality of thin absorbent members into a closed space, And pressing the laminated member at a pressure of 1 to 60 kgf / cm < 2 > for 50 to 200 minutes using a heating plate of 50 to 75 DEG C while applying a hot wind of 75 DEG C or less.

The present invention provides a hot air while heating and pressing a plant through the water absorbent member so that moisture of the plant is rapidly absorbed into the water absorbent member and water absorbed into the water absorbent member is quickly released into the air to enable rapid drying, , Pressure and time conditions are used, it is possible to manufacture a dry plant of excellent quality while preventing deformation such as a change in the vegetable gravel during the drying process.

When the heating plate temperature, pressure and hot air temperature are further increased or the compression time is increased based on the temperature range, the pressure range, the hot air temperature range and the compression time range of the heating plate, deformation of the plant such as browning occurs, It may fall significantly, and when the temperature of the heating plate, the pressure, the temperature of the hot air are further lowered or the pressing time is reduced, sufficient drying may not be performed.

In the present invention, the thin absorbent member absorbs moisture of the plant at the time of pressing and can be dried quickly, and paper, nonwoven fabric, fiber sheet, film or the like having absorbency can be used. However, it is preferable to use the absorbent paper and the fiber sheet coated with calcium chloride in parallel for evaporation of moisture absorbed and absorbed more rapidly. The fiber sheet coated with calcium chloride can quickly absorb the moisture of the plant due to the calcium chloride, and the moisture absorbed by the fiber sheet can be dried quickly due to heating by the heating plate and hot wind. At this time, it is preferable to place the absorbent paper on the contact surface with the plant to prevent the contamination of the plant with calcium chloride of the fiber sheet or the like, and then place the fiber sheet thereafter. For example, as shown in Fig. 1, it is preferable to arrange the fiber sheet, the absorbent paper, the plant, the absorbent paper, and the fiber sheet in this order from the bottom.

In addition, such plants, absorbent paper, and fiber sheets can be repeatedly laminated to simultaneously dry more plants. For example, as shown in Fig. 2, the fiber sheet, the absorbent paper, the plant, the absorbent paper, the fiber sheet, the absorbent paper, the plant, the absorbent paper and the fiber sheet can be repeatedly laminated in this order.

According to another aspect of the present invention, the present invention provides the most suitable conditions depending on the type and location of the plant in using the compression drying method of the present invention.

In the present invention, a method of applying hot pressing and hot air for a predetermined time is used for drying the plant. Since the sensitivity to moisture or heat depends on the type and location of the plant, . Especially, in case of making presses or the like for interior use or making jewelry, the condition of such dry plant is very important.

When the compression drying method of the present invention is carried out, a dry plant having a very good condition can be manufactured by performing the heat plate temperature, the pressure, the hot air temperature and the compression time as shown in Table 1 according to the kind and location of the plant.

Types of plants
And site Heating plate temperature
(Unit: ℃) pressure
(Unit: kgf / cm2) Hot air temperature
(Unit: ℃) Squeeze time
(Unit: minute) Flower grass flower 56 ~ 61 3 to 7 66 to 71 175-185 Flower grass leaf 56 ~ 61 32 ~ 42 66 to 71 115-125 Flower grass roots 56 ~ 61 48-52 66 to 71 115-125 Leaves 56 ~ 61 5 ~ 9 66 to 71 175-185 Roots 56 ~ 61 28 ~ 32 66 to 71 115-125 Cadmium herb flower 56 ~ 61 1-5 56 ~ 61 175-185 Cadmium herb leaf 56 ~ 61 48-52 56 ~ 61 175-185 Root of root 56 ~ 61 48-52 66 to 71 115-125 Cutting leaves 56 ~ 61 1-5 56 ~ 61 175-185 Hemp roots 66 to 71 1-5 66 to 71 175-185 Fern leaf 56 ~ 61 48-52 56 ~ 61 175-185 Fern root 66 to 71 28 ~ 32 66 to 71 175-185 Viola flowers 56 ~ 61 48-52 66 to 71 115-125 Viola leaves 56 ~ 61 1-5 56 ~ 61 175-185 Viola root 66 to 71 48-52 66 to 71 55 ~ 65

The conditions of Table 1 were determined based on the correlation analysis results of various conditions according to the types and locations of various plants shown in Table 2. [ In case of fuming plate temperature and hot air temperature, it is set in the range of -4 ℃ ~ + 1 ℃ based on optimum temperature considering the degree of drying and the risk of plant deformation. In case of pressure, -2kgf / ㎠ ~ + 2 kgf / cm 2, and the compression time is set in the range of -5 min to +5 min based on the optimum compression time.

Types of plants
And site Heating plate temperature
(Unit: ℃) pressure
(Unit: kgf / cm2) Hot air temperature
(Unit: ℃) Squeeze time
(Unit: hour) Flower grass flower 60 5 70 3 Flower grass leaf 60 40 70 2 Flower grass roots 60 50 70 2 Leaves 60 7 70 3 Roots 60 30 70 2 Cadmium herb flower 60 3 60 3 Cadmium herb leaf 60 50 60 3 Root of root 60 50 70 2 Cutting leaves 60 3 60 3 Hemp roots 70 3 70 3 Fern leaf 60 50 60 3 Fern root 70 30 70 3 Viola flowers 60 50 70 2 Viola leaves 60 3 60 3 Viola root 70 50 70 One

According to the present invention, a plant can be squeezed and dried in a large amount in a short time, and a dry plant of excellent quality can be obtained. Particularly, in the case of flowering grass, peat, cadmium, hemp, fern, viola, a very good quality dried body can be obtained in each region.

The plant squeeze-drying method of the present invention is expected to contribute greatly to the industrial development such as interior decoration and jewelry by using the press.

1 is a schematic view of an embodiment of a plant squeeze-drying method according to the present invention.
FIG. 2 is a schematic representation of an embodiment of a plant squeeze-drying method according to the present invention, in which a plant, an absorbent paper and a fiber sheet are repeatedly laminated and compressed and dried.
3 is a block diagram showing an embodiment of a plant squeeze-drying method according to the present invention.
FIG. 4 shows drying results of flower grass flowers according to the plant squeeze drying method of the present invention.
FIG. 5 is a graph showing the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of flower grass flowers according to the plant squeeze drying method of the present invention.
FIG. 6 shows drying results of flower grass leaves according to the plant squeeze drying method of the present invention.
FIG. 7 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of flower grass leaves according to the plant squeeze drying method of the present invention.
FIG. 8 shows drying results of flower grass roots according to the plant squeeze drying method of the present invention.
FIG. 9 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of flower grass roots according to the plant squeeze drying method of the present invention.
Fig. 10 shows the drying results of the foliage leaf according to the plant squeeze-drying method of the present invention.
FIG. 11 shows the results of analysis of the correlation between the heating temperature, the hot air temperature, the treatment time, and the compression strength on the basis of drying results of the leaf cloves according to the plant compression drying method of the present invention.
12 shows the results of drying of the rootstock root according to the plant squeeze-drying method of the present invention.
FIG. 13 shows the results of analysis of the correlation between the heating temperature, the hot air temperature, the treatment time, and the compression strength based on the drying results of the planting roots according to the plant pressing method of the present invention.
Fig. 14 shows drying results of the petioles of the seedlings according to the plant squeeze-drying method of the present invention.
FIG. 15 is a graph showing the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of cadmium petals according to the plant squeeze drying method of the present invention.
FIG. 16 shows drying results of cadmium leaves according to the plant squeeze drying method of the present invention.
FIG. 17 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of cadmium leaves according to the plant squeeze drying method of the present invention.
FIG. 18 shows drying results of cadmium root according to the plant squeeze drying method of the present invention.
FIG. 19 shows the results of analysis of the correlation between the heating temperature, the hot air temperature, the treatment time and the compression strength based on drying results of the cadmium root according to the plant squeeze drying method of the present invention.
Fig. 20 shows the drying results of the cutting blade according to the plant squeeze drying method of the present invention.
FIG. 21 shows the results of analysis of the correlation between the heating temperature, the hot air temperature, the treatment time and the compression strength based on drying results of the cutting blade according to the plant squeeze drying method of the present invention.
Fig. 22 shows the drying results of the root cuttings according to the plant squeeze-drying method of the present invention.
FIG. 23 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compressive strength based on drying results of root cutting according to the plant squeeze drying method of the present invention.
24 shows the drying results of fern leaves according to the plant squeeze drying method of the present invention.
FIG. 25 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compressive strength based on drying results of fern leaves according to the plant squeeze drying method of the present invention.
Fig. 26 shows drying results of bracken root according to the plant squeeze-drying method of the present invention.
FIG. 27 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compressive strength based on drying of bracken root according to the plant squeeze drying method of the present invention.
28 shows the results of drying the viola flowers according to the plant squeeze drying method of the present invention.
FIG. 29 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on the drying results of Viola flowers according to the plant squeeze drying method of the present invention.
30 shows the results of drying the viola leaves according to the plant squeeze drying method of the present invention.
FIG. 31 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on the drying results of the viola leaves according to the plant squeeze drying method of the present invention.
Fig. 32 shows the results of drying the viola roots according to the plant squeeze-drying method of the present invention.
FIG. 33 shows the results of analysis of correlation between heating temperature, hot air temperature, treatment time, and compression strength based on drying results of the viola root according to the plant squeeze drying method of the present invention.

Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for illustrating the present invention, and thus the scope of the present invention is not construed as being limited by these embodiments.

In this embodiment, a sealed hot air chamber having a temperature controllable function and a moisture discharge function is used. An electric heating plate (1000㎜ × 500㎜), which can be controlled by stainless steel, is installed in the upper and lower parts of the chamber. The same stainless steel compression lift is installed to allow the heating plate to move up and down. .

The plants were divided into three groups: flowering plants, ferns, and wildflowers, and 6 kinds of plants were used.

Each plant was divided into four branches: flower, leaf, stem, and root.

Plant classification Types of plants One Flowering plants Flower grass, two kinds of viola 2 Flowering plants (fern) Hemp, two species including bracken 3 Wildflower Two kinds of bamboo shoots and bamboo shoots

Two kinds of flowers: flowers grasses (flowers, leaves, roots), violas (flowers, leaves, stems, roots)

Wildflowers: two kinds of flowers (leaves, stems, roots), cadmium (flowers, leaves, stems, roots)

Shrubs: 2 kinds of cuts (flowers, leaves, stems, roots), ferns (leaves, roots)

Experiments of various plants at heating temperatures of 50 ° C to 90 ° C showed that the plants could be dried and narrowed to about 50 ° C to 70 ° C, which is before the yellowing or discoloration.

The range of treatment time for drying was set to a maximum of 3 hours and a minimum of 1 hour in consideration of the quantitative increase in the data on the drying of plants by heating using various heating media.

The compressive strength is a very important parameter in the drying experiment of the plant. Based on the results of the preliminary experiment, the compressive strength was set to 3kgf / ㎠ at 50kgf / ㎠. kgf is the unit of pressure and 'pressure' is the force acting per unit area. (Force) = 1 kg (mass). 'kgf / ㎠' means the force divided by the area as a unit of pressure, meaning that it receives a force of 1kfg per 1cm 2. 1kgf refers to the force created by the gravity of 1kg of the mass, and the weight is the force generated by gravity acting on the mass, so it is expressed as approximately 1kg = 1kgf.

Plants have different drying times for each part. Depending on the condition, flowers and leaves may be yellowish yellow, distorted or stained, and vice versa, with roots less dry. Since the dryness varies depending on the content of water depending on the thinness and thickness of the flower petals, it is necessary to grasp the standard drying time and treatment state through classification of each plant.

Thus, the temperature of the heating plate, the hot air temperature, the drying time, and the pressing force were crossed with each other under various conditions.

In the experiment of plant drying, the condition of each condition was described by examining the dry condition of the user by visual and fingertip sensation under all conditions, as [very good / good / poor]. Before the plant was dried, the weight of each part was measured and recorded with a precision electronic scale. After the drying process, the weight of the dried plant was measured again and recorded. Then, the measured values were input into a computer to measure the water removal rate, and the state of visual and tactile sensation was compared with the output data, and only the optimum drying condition was selected [very good / good / bad]. Very good is blue, good is green and bad is just white, and all the careless or nonstandard data of the experimenter is treated as error. In addition, the result that the color was deformed or deformed was treated as defective even if the moisture removal rate was the best.

  Drying plants require a certain amount of moisture to maintain the best color and form, and when the water removal rate is too high, the shape tends to be distorted, the color yellowing or the easy breakage. Therefore, except for some roots, the results with 75 ~ 85% moisture removal were treated as dry 'good', 85 ~ 90% as 'very good', and all other results were treated as 'bad' .

The results of the final plant drying were analyzed by compressing into 3 classes, 6 species, and 15 kinds.

Flower grass flower

Flower grass petals were relatively dry in the previous experiment. As a whole, the experimental sheet is shown in blue and green, which shows that the water removal rate is more than 80%. However, the pretreatment process of cutting the bud part with a knife or other tools I did not do it, and it seemed thicker and less dry than the naked eye. Even though the water removal rate was low, the overall appearance of dryness was better in terms of visual and tactile sensation.

The effect of each heating temperature (heating plate temperature), compression strength, and hot air temperature on drying was as follows: First, when the heating temperature was 50 ° C, the color was sharp but the moisture content was high, . The heating temperature of 60 ° C, the compressive strength of 5kgf, the hot air temperature of 70 ° C, the treatment time of 3 hours, the heating time of 50 ° C, the hot air temperature of 70 ° C, the compressive strength of 3kgf, and the treatment time of 3 hours were relatively good. The most transparent and vivid color and shape. If the heating temperature exceeds 70 ℃, the color changes or the shape change becomes severe due to the pressing phenomenon.

The influence of the compressive strength on the drying was examined. When the pressure exceeded 7kgf, the petal cracked and the shape was deformed. Therefore, it was possible to obtain the best result in a low compression state.

The effect of the hot air of the chamber on the drying was examined at 80 ° C to 90 ° C, and the results were obtained only within 70 ° C because the ends of all the plants shrank or shrunk due to shrinkage. In the case of flower grass petals, the experiment was carried out at a heating temperature of 70 ° C and a hot air temperature of 70 ° C, and discoloration was severe and crumbling occurred. That is, the best result was obtained at 60 ° C.

Taken together, the hue at a heating temperature of 60 ° C, a compression strength of 5 kgf, a hot air temperature of 70 ° C, and a treating time of 3 hours was 85.714%, and the hue was also transparent.

Flower grass leaf

Because the grass lawn was tested without separating the leaves and stem, even if the leaves were dried, the stem tended to be less dry or crushed. Strictly, in order to obtain good results of the experiment, the leaves and the stem should be separated, but the details were not specified. The leaves and stems were generally focused on showing good dryness. Generally, it was dried well but the color was changed, broken or shrunk was treated as bad or error, and only the best condition was treated very well and good.

The drying was not sufficiently carried out under the low pressure condition at the heating temperature of 50 ° C, but the stem was broken or crushed even under the high pressure condition, so that the result was not good. It can be seen that the drying is relatively good at a heating temperature of 50 ° C at a minimum pressure of 5 to 7 kgf and a hot air temperature of 70 ° C. At the heating temperature of 60 ° C, the color was the most clear, while the color was yellowish above 70 ° C.

The hot air temperature of the chamber showed a good condition at 60 ~ 70 ℃. Most plants were able to be effective with a hot air temperature of at least 60 ° C.

It is preferable that the compression force is dried at 3 to 7 kgf, which is a state of low compression force, because the stem is crushed at high pressure.

The final results showing the best drying condition of the flower grass leaves show that the color of the drying rate is 93.75% when the heating temperature is 60 ° C., the compression strength is 40 kgf, the hot air temperature is 70 ° C. and the treating time is 2 hours, I was able to get the best results without.

Flower grass roots

Flower grass roots generally showed very good dry condition under each condition. The water removal rate was more than 80%, and the moisture content of the roots and the roots of the roots were significantly different, and the measured values were evaluated as good, good and bad, .

When the hot air and the pressing force were adequately supplemented from the heating temperature of 50 ° C to 70 ° C, the drying was successful without any change in shape under any conditions. However, in order to dry in the quickest time, 60 ° C or more seems to be good.

The hot air temperature was well dried at 60 ° C or higher, and the larger the compression force, the better the drying. In other words, the higher the hot air temperature, the greater the compression force, the better the drying, and the best dry condition within 1 hour. If only the pretreatment of the coarse roots is done properly, it will be able to show a good drying condition under all conditions.

The final results showing the best dry condition of flower grass roots showed that the color of drying ratio 82.353% was clear when the heating temperature was 60 ° C, the compression strength was 50kgf, the hot air temperature was 70 ° C and the treatment time was 2 hours. I was able to get the best results without.

Leaves

The leaves were slightly sensitive to temperature. Especially, when hot air temperature exceeds 70 ℃, it becomes yellowish yellow, so it is necessary to perform it under various conditions.

At 50 ℃ of heating temperature, it was not dried well. When leaves and stems were kept under the same conditions, the leaves were dry and the stem was not dried. In the present experiment, the experiment was conducted without separating the leaves and the stem, and it was found that the consideration of the stem was insufficient. In the future, the stem should be pretreated with a sheath so that the moisture can be easily discharged, Distribution.

In case of hot air, the drying effect should be at least 70 ℃. In this experiment, we limited the temperature to less than 3 hours.

The final result is as follows.

When the heating temperature was 60 ℃, the compression strength was 50kgf, and the hot air temperature was 70 ℃, the drying rate was 82.353% for 2 hours.

Roots

The roots of Maesil were generally in good dry condition. Almost 70% of the water removal rate was observed in the majority of the coarse roots. The coarse roots need to be changed somewhat due to the difference in thickness.

The higher the heating temperature, the higher the compression strength, and the higher the temperature of the hot air, the more the drying effect can be maximized. However, when the experiment is carried out by replacing various conditions, it is not possible to clearly grasp the desired data value for each item because the conditions are the same as those of the other experiments. However, if the test is carried out under the same conditions, 60 ° C, hot air temperature 70 ° C, compression force 30kgf, treatment time 2 hours and moisture removal rate 86.402%.

For the roots of peach root, if the heating temperature is 70 ℃, the hot air temperature is 70 ℃, and the maximum value of compressive force is 50kgf, it will be able to show the best drying condition even within 1 hour.

Cadmium herb petal

When the heating temperature is 50 ℃, most of the flowers are not dried well or the center of the flower is almost dry, and the bud part needs to be pretreated once. The hot air temperature should be 70 ° C to obtain a good condition, but it may be deformed in color or shrunk. At 60 ° C, drying takes place smoothly under any conditions, and you should also take a good look at the shape changes of the cracks or shrugs.

Good results can be obtained without deforming color and shape at low compression force. The best drying value is as follows.

The best results were obtained with a heating temperature of 60 ° C, a compression strength of 3 kgf, a hot air temperature of 60 ° C, a drying time of 3 hours, and a moisture removal rate of 87.755.

Cadmium herb leaf

The leaves of the endosperms were uniformly dried under most conditions. Because it has been for a long period of about 2 months, depending on the condition of the plant, depending on the environment in which the plants are exposed to rain, sunshine or the like, or depending on the amount of water originally contained in the plant There are cases in which the results are different, but the results can be extracted through various experiments.

Even though the heating temperature was 50 to 70 ° C, it was evenly dried. However, when the temperature exceeded 70 ° C, yellowing should be paid attention to.

The best drying results showed that the moisture removal rate was 86.331% at a heating temperature of 60 ° C, a hot air temperature of 60 ° C, a compression strength of 50 kgf and a treatment time of 3 hours, and the color and shape were also in the best condition.

Root of root

It is difficult to determine the dry state by the difference of the root thickness and the difference of the root, because the root of the root is composed of most of the coarse roots and the fine roots such as the spikes, and the deviation is severe under the same conditions. However, in most of the conditions, it showed good drying condition, and in particular no deformation of color or shape was found.

Therefore, if the heating temperature is increased to 70 ° C or the temperature of the hot air is increased to 70 ° C, there will be no significant deformation. Even if all the conditions are the best, the dry condition will be sufficient, and it will be shortened within at least one hour. However, as the result of the experiment under the same conditions, the drying rate was found to be 89.055% within the heating temperature of 60 ° C, hot air temperature of 70 ° C, compression strength of 50kgf, and treatment time of 2 hours.

Cutting leaves

Cutting leaves are carried out without separating the leaves and the stem, so that even if the leaves are dried, the stem is not dried or the moisture removal rate is changed due to the weight of the stem, so that the color is good and the ' I did not give the result. The leaves were dried only, but the stem was less dried and the drying condition seemed to be enough to obtain better results. Although leaves and stems were not separated from each other, good results were not obtained. However, it was difficult to find the results that both leaves and stems could satisfy at the same time.

The best results were obtained in the best color and shape with a heating temperature of 60 ℃, a hot air temperature of 60 ℃, a compressive strength of 3kgf, and a treatment time of 3 hours, with a water removal rate of 81.03%.

Hemp roots

Previously, it was not possible to obtain much good results in dry cutting of leaves, but in case of cutting roots, overall dryness was very good. In most drying experiments, it was possible to obtain a 'good dry' condition with the naked eye or the moisture removal rate measured with a precision electronic scale.

In the other root drying experiments, all the good results were obtained, but in the case of the cutting root, the difference between the thick roots and the root roots was not large, and even if the roots were not pretreated with thick roots, they were uniformly dried .

The higher the heating temperature, the higher the hot air temperature, and the higher the compressive strength, the better the drying. The best drying results under the same conditions were 82.824% at a heating temperature of 70 캜, a hot air temperature of 70 캜, a pressing strength of 3 kgf, and a treatment time of 3 hours, but it was determined that drying was possible even within 1 hour.

Fern leaf

The fern leaf, which is a fern, has almost no drying due to the presence of moisture at a heating plate temperature of 50 ° C, and is not dried or changed its color at 50 ° C under any conditions. A temperature of at least 60 ° C should be applied. At this time, it is only necessary to control the temperature of the hot air and the pressing force to obtain a good result.

The overall color was very good and the shape was good. The best results were obtained at the heating temperature of 60 ℃, the compressive strength of 50kgf, and the hot air temperature of 60 ℃ for 3 hours. The best results were obtained with 92.857% dryness.

Fern root

Most of the roots were very dry, but in the case of bracken, there was no fine roots, and one coarse root contained a lot of water.

Under certain conditions, the fuzzy roots on the surface tend to be yellowish yellow, but little in color and shape.

It was found that it is necessary to carry out the pretreatment process for the rapid drying. The higher the heating temperature, the higher the squeezing rate, and the hot air temperature should be within 70 ° C, the yellowing of the remaining fluffy roots can be prevented.

The best results are as follows.

A drying rate of 80.056% was obtained at a heating temperature of 70 캜, a hot air temperature of 70 캜, a pressing strength of 30 kgf and a treating time of 3 hours.

Viola flowers

Pan or Viola flowers, which are common in the surrounding area, are used not only for various environmental purification works, but also as a press material. In the case of Viola flower, the somewhat thick part of the bud showed a tendency to dry out, but it was generally well dried at the overall temperature and pressure.

It was well dried at 50 ℃ to 70 ℃ and showed relatively high temperature. However, it is not good to exceed this range, as all plants that have been shown through the plant drying experiment for 7 to 8 months in the past 7 to 7 o C may have a deformed shape due to the sudden evaporation of water once.

Even at a heating temperature of 50 ° C, it was dried well by increasing the compression force. The higher the compression ratio, the better the temperature. If the hot air becomes too high, it should be considered. When the temperature of the heating and the temperature of the hot air are increased simultaneously, the drying can be carried out within 1 hour. However, in order to obtain the best drying condition, a heating temperature of 60 캜, a compression strength of 50 kgf, a hot air temperature of 70 캜, 2 hours. The dry rate was 87.368%.

Viola leaves

The stem of Viola is composed of a tube containing a lot of water. As the dried whole stem and leaves were tested, the dryness of leaves and stems was very different. To dry the leaves, if the stalks are broken, or if the stems are to dry, the leaves become yellowish yellow. Therefore, it is difficult to obtain a result that can satisfy both conditions at the same time. Therefore, as shown in the result sheet, it is very rare that the blue color is very good and the green color is good. Since all the conditions are the same, the color is good, there is no deformation of the form, and the leaf and stem are good at the same time.

The heating temperature was 60 ℃ and the crushing strength was high. Therefore, the highest drying rate was 90.638% at 3kgf, the hot air temperature was 60 ℃ and the treatment time was 3 hours.

Viola root

All conditions showed a 'very good' dry condition overall. However, in the case of thick roots, it is possible to obtain a more effective result value if the pretreatment process is performed so that the sheath can be easily drained out. Depending on the environment, some errors may have occurred, but overall they gave satisfactory values.

The best drying conditions were the heating temperature of 70 ℃, the compressive strength of 50kgf, the hot air temperature of 70 ℃, and the treatment time of 1 hour. The higher the heating temperature, the higher the compression strength, the higher the hot air temperature, And it was the object that can obtain the drying result in the earliest time.

Claims (3)

A plant pressing drying method in which a plant is pressed,
A lamination member in which a plant is interposed between a plurality of thin absorbent members is put in a closed space,
Wherein the laminated member is pressed at a pressure of 1 to 60 kgf / cm 2 for 50 to 200 minutes using a heating plate of 50 to 75 ° C while applying hot air of 50 to 75 ° C to the closed space. The method according to claim 1,
Wherein the plant is compressed and dried under the conditions of a heating plate temperature, a pressure, a hot air temperature and a compression time in the following table according to the type and location of the plant.

The method according to claim 1,
Wherein said thin absorbent member uses a calcium chloride coated fiber sheet and an absorbent paper,
A plurality of absorbent sheets are sandwiched between a plurality of calcium chloride-coated fiber sheets,
Wherein the plant is sandwiched between the absorbent papers.

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