JPH0825841B2 - How to preserve fresh dried flowers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fresh flower obtained by displacing and dehydrating an organic solvent to obtain a dried fresh flower, which can be preserved for a long period of time while maintaining its original shape and primary color. The present invention relates to a method for storing dried products.

(Prior Art) Conventionally, when storing dried flowers of fresh flowers, a method of substituting and dehydrating fresh flowers with an organic solvent and then storing them in a desiccator has been used. Had problems such as whitening of flower color, disordered flower pattern, and wrinkles in a few weeks.

(Problems to be solved by the invention) The method of substituting and dehydrating fresh flowers with an organic solvent is an extremely advantageous method for obtaining dried fresh flowers of the original shape and primary color, but immediately after the dehydration work is completed, the flowers are embedded in a transparent resin. Must be applied or coated with resin. That is,
If the final process is not performed all at once, fresh flowers will whiten and wrinkle relatively quickly. Therefore, it is desired to develop a method capable of retaining the original form and the original color of the dried flower dried by substitution and dehydration with an organic solvent for a longer period than the conventional method.

(Means for Solving Problems) The present inventor has conducted diligent studies to solve the above problems, and as a result, dried and dried fresh flowers replaced with an organic solvent were pre-dried and then placed in a closed container. The present inventors have completed the present invention by discovering that they can be preserved for several months or a year or more while keeping the original shape and primary color when they are preserved at a frozen temperature.

That is, the present invention is a method for storing a dried fresh flower, which comprises substituting and dehydrating a fresh flower with an organic solvent, preliminarily drying it, storing it in a closed container, and storing it at a temperature of -4 ° C or lower.

In the present invention, in order to substitute and dehydrate a fresh flower with an organic solvent, the fresh flower may be immersed in an organic solvent such as ethanol, butanol, cold acetone, isopropanol or the like according to a conventional method.

Fresh flowers that have been dehydrated by substitution with an organic solvent are dried and
Although it is necessary to remove the organic solvent to some extent, this drying treatment is called preliminary drying in the present invention. Fresh flowers that have been dehydrated by substitution with an organic solvent are stiff and breakable, but as the organic solvent is removed by drying, the fresh flowers become flexible and further dry,
The shape of the fresh flowers will be lost. The preliminary drying of the present invention is to dry the fresh flowers until they are in a flexible state.

If it is not pre-dried until the fresh flowers are in a flexible state, the flowers will gradually become transparent or the flower color will become white after being embedded in the transparent resin or coated with the transparent resin, resulting in loss of commercial value. . In addition, if the fresh flower is excessively dried compared to the flexed state, the shape of the fresh flower may be lost or wrinkles may occur as described above, and the flower color may be deteriorated, which is not preferable.

The temperature and time for pre-drying vary depending on the type and condition of flowers, the type of organic solvent, etc., and are not uniform,
For example, when Lithium is dehydrated with ethanol at 40 ° C
When a cactus leaf cactus flower is dehydrated with acetone for 15 minutes, it may take a few minutes with an infrared lamp of 250 W and 50 cm, and in the case of symbidium, it may take 2 hours at 55 ° C.
Therefore, in the range of 15 minutes to 2 hours at 40-55 ℃,
In short, the temperature and time for preliminary drying until the fresh flowers are in a flexible state may be appropriately determined depending on the type and state of flowers, the type of organic solvent, and the like.

For soft flowers, the predrying time is short, and it is difficult to determine the appropriate time before wrinkles occur, and wrinkles are likely to appear during predrying.To prevent this, use a solvent for dehydration. Waxes such as higher alcohol, paraffin, stearic acid, and wax may be mixed in a small amount, or may be dipped in the mixed solution for a short time before drying. By doing so, not only can the evaporation rate of the solvent inside the flower be appropriately controlled, but the storage conditions thereafter can be moderate.

The effects of these waxes differ depending on the type of flower, and when it comes to cherry blossoms, it is very effective when used on soft ones such as cluster amaryllis, but Taiwan's Scarlet Cherry and Oshima Cherry are not particularly necessary. . It is better to use someiyoshino and mountain cherry blossoms than not to use them. In addition, most orchid flowers do not require most symbium but it is convenient to use many dentrobiums because the drying process and conditions are gentler.

The above-mentioned pre-dried product is stored at a temperature of -4 ° C or lower, but the storage temperature varies slightly depending on the flower and solvent, and exceptionally, it is mechanically strong in symbidium and lily. In some cases, 2-3 at 8 to 0 ° C
Some can withstand storage for a month, but even such a product can be stored without change for more than one year if stored at a temperature of -4 ° C or lower. All other flowers require -4 ° C or less without exception, and -4 ° C to -15 ° C is a desirable storage temperature range.

If the storage temperature is higher than −4 ° C., the flowers undergo creep under the weight of the flowers themselves during storage, causing deformation or whitening of the flower color, which makes the flowers unusable for long-term storage. The purpose of preservation can be achieved even if the temperature is lower than -15 ° C.

The use of waxes does not make a big difference in the storage period when using butanol as a solvent, but it is effective in preventing the deterioration of flowers due to a temporary rise in temperature due to putting in and out of flowers during storage. is there. When ethanol or the like is used as a solvent, it is extremely effective in preventing the generation of wrinkles. For example, when butanol such as lily of the valley is dehydrated, it is safe for one year or more, but when dehydrated with ethanol, there is only a storage period of about 6 months at -15 ° C, and wrinkles gradually occur. In this case waxes are useful. In particular, if the butanol does not prevent blackening during dehydration like tin orchid, ethanol and methanol must be used to prevent blackening, but in this case, waxes must be used. Become.

(Effects of the Invention) The dried and dried fresh flowers replaced with an organic solvent are either embedded in a transparent resin or coated with a resin to prepare a sample. However, according to the present invention, the dried fresh flowers can be stored for a long period of one year or more and can be embedded in a transparent resin or coated with a resin. The operation can be advantageously performed.

(Example) Although an example of the present invention is given and explained, the present invention is not limited to these examples.

Example 1 Someiyoshi cherry blossoms were put into butanol for dehydration for about 1 hour, then put into a 10% butanol solution of cetanol, immediately pulled up and dried at 50 ° C. for 30 minutes, and immediately at −15 ° C. Cool and store as is.

Example 2 A Taiwanese Hikari cherry tree was put into butanol for dehydration, and after completion of dehydration, it was dried at 45 ° C. for 15 minutes and then placed in the container, and −10
Store at a temperature between ℃ and -15 ℃.

Example 3 A flower of a lily of the valley was put into pure ethanol, dehydrated for 5 minutes, then pulled up and put into butanol, and after about 30 minutes, immersed in a 20% butanol solution of paraffin, and this was placed at 40 ° C.
Dry for 10 to 15 minutes, put in the same container, -10 ℃ ~ -15
Store at a temperature of ℃.

Example 4 The flowers of Diasmin are put into cold acetone for dehydration, and after completion of the dehydration, put in butanol to replace acetone with butanol. Next, warm this to 40-45 ℃, gradually add warm paraffin in a dissolved state, take out flowers when paraffin concentration reaches about 30%, dry under infrared lamp for 10 to 15 minutes, and then Put in a container, -10 ℃ ~ -15 ℃
Store under the temperature of.

Example 5 Symbidium was added to butanol for dehydration for about 1 hour, then added to a butanol solution in which 20% cetanol was dissolved, taken out 1 hour later, and dried at 50 ° C. for 1 hour, and then placed in the container. And store at a temperature of -10 ℃ to -15 ℃.

Claims (1)

[Claims] 1. A method for storing a dried fresh flower, which comprises substituting and dehydrating a fresh flower with an organic solvent, preliminarily drying and storing the dried flower at a temperature of −4 ° C. or lower.