A kind of preserved flower processing reagent and its method for preparing preserved flower

Abstract

The application provides a kind of immortal flower processing reagent and its preparation method of immortal flower, it is related to the technical field of immortal flower preparation.The immortal flower processing reagent includes dyeing agent and post-treatment agent, wherein the dyeing agent is composed of polyethylene glycol, methanol, dendrophenol, alcohol-soluble pigment;The post-treatment agent is composed of ethanol, hydrogenated castor oil, menthol, folic acid, deionized water;And when preparing, after the discoloration of fresh-cut flowers, high-concentration carbon dioxide is placed, and then the dyeing agent is used for soaking and dyeing, and then the post-treatment agent is used for short-time soaking after preliminary drying, and then dried.The application overcomes the shortcomings of the prior art, can effectively improve the uniformity of immortal flower dyeing, and further fixes color and prevents color fading and deformation of immortal flower, and improves the storage stability of immortal flower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of preserved flower preparation, in particular to a preserved flower treatment reagent and a method for preparing preserved flowers. BACKGROUND

[0002] Preserved flowers, also known as fresh flowers or ecological flowers, are known as "everlasting flowers". They are processed through a series of complex processes such as dehydration, decolorization, drying, and dyeing, and are processed from fresh-cut flowers such as roses, carnations, and hydrangeas. They not only retain the color, shape, and texture of fresh flowers, but also significantly extend the storage time, usually up to 3-5 years, or even longer.

[0003] The existing preserved flowers are almost identical to fresh flowers in terms of shape, and the curling degree of petals and the opening state of flowers maintain natural beauty. In addition, according to the difference in dyeing pigments, flowers with colors that do not exist in natural environments can be prepared to meet individual needs.

[0004] The existing preserved flowers are generally prone to fading or discoloration under high temperature or direct sunlight due to the process. The application number 201810165817.2 discloses a method for making preserved flowers, which performs fixation and preservation after dyeing by strengthening treatment. The formula of the dyeing agent is "green algae extract, chloroacetic acid, polyacrylic compound, aluminum potassium sulfate dodecahydrate, dibutyl phthalate, hydrochloric acid, butylphenyl latex, ferric oxide, colorant, and peroxobenzoic acid hexyl butyl ester", which contains dibutyl phthalate, a toxic and harmful substance that is not conducive to environmental protection if it is in contact with the human body for a long time. In addition, the addition of butylphenyl latex and other substances will cause the petals to thicken, affecting the light texture of the subsequent preserved flowers. In addition, the strengthening liquid is a mixture of bactericides, ultraviolet-proof agents, flavoring agents, and preservatives, and the bactericides are composed of 2-methyl-propyl methyl ester, sodium carbonate, calcium propionate, trichloroisocyanuric acid, organic acid, embedding agent, solubilizer, stabilizer, and antifreeze. The ultraviolet-proof agent is composed of silicon dioxide, zeolite, 2,4-dihydroxybenzophenone, N,N-di-n-butyl nickel dithiocarbamate, guanidine antibacterial agent, 2,4,4'-trichloro-2'-hydroxy diphenyl ether, 8-hydroxyquinoline copper, aluminum zirconium acid ester coupling agent, and polyacrylic acid sodium dispersant. The flavoring agent is composed of fragrance, anhydrous sodium sulfate, anhydrous glucose, and malt dextrin. The preservative is composed of sodium hydroxide, potassium hydroxide, paraffin, sodium molybdate, diatomite, peppermint powder, potassium molybdate, ammonium molybdate, and solubilizer. The overall composition is complex, and many of the components themselves have color, which may cause color differences when preparing other color preserved flowers. In addition, many components (such as 8-hydroxyquinoline copper, 2,4,4'-trichloro-2'-hydroxy diphenyl ether, and 2-methyl-propyl methyl ester) have irritant properties to human skin and mucous membranes, which poses a problem of use safety.

[0005] And the existing preservation of the preserved flower needs to be stored in a dry environment. If the environment humidity is high, the preserved flower is easy to deform or petal to fall off. Therefore, how to ensure the basic quality of the preserved flower and improve the storage stability in various environments is an important research direction at present. SUMMARY

[0006] In view of the deficiencies in the prior art, the present application provides a preserved flower treatment reagent and a method for preparing the preserved flower, which can effectively improve the dyeing uniformity of the preserved flower, and further fix the color and prevent the preserved flower from fading and deforming, thereby comprehensively improving the storage stability of the preserved flower.

[0007] To achieve the above object, the technical scheme of the present application is realized by the following technical scheme:

[0008] A preserved flower treatment reagent, which is a dyeing agent and a post-treatment agent; the dyeing agent is composed of the following components by weight: polyethylene glycol 40-45 parts, methanol 60-65 parts, dendrophenol 2-4 parts, and alcohol-soluble pigment 1-10 parts; the post-treatment agent is composed of the following components by weight: ethanol 16-20 parts, hydrogenated castor oil 4-6 parts, menthol 2-4 parts, folic acid 2-4 parts, and deionized water 8-10 parts.

[0009] Preferably, the preparation method of the dyeing agent is to dissolve the dendrophenol in methanol, and then mix the polyethylene glycol and the alcohol-soluble pigment to obtain a uniform mixture.

[0010] Preferably, the preparation method of the post-treatment agent comprises the following steps:

[0011] S1, dissolving folic acid in deionized water, then mixing ethanol and menthol, ultrasonic homogenization, obtaining a mixture for standby;

[0012] S2, dropwise adding hydrogenated castor oil to the mixture, stirring while dropping, and then continuing to stir at a speed of 1200-1400 r / min under ice water bath for 15-20 min after the dropwise adding is completed, obtaining a mixed emulsion as the post-treatment agent.

[0013] Preferably, the power of ultrasonic homogenization in step S1 is 400-600 W, and the homogenization time is 10-15 min.

[0014] Preferably, the dropwise adding rate of stirring while dropping in step S2 is 2-5 mL / min, and the stirring speed is 600-800 r / min.

[0015] The method for preparing the preserved flower comprises the following steps:

[0016] (1) selecting high-quality, healthy, and well-opened fresh flowers for standby;

[0017] (2) The sodium chlorite, 80% methanol solution and citric acid are compounded to prepare a decolorizing solution, and the fresh flowers are placed in the decolorizing solution for decolorizing treatment to obtain decolorized fresh flowers for standby;

[0018] (3) The decolorized fresh flowers are cleaned with methanol, and then placed in a sealed device, the carbon dioxide concentration in the sealed device is adjusted to 1%-2%, and the treatment is performed for 30-40 min, and then the decolorized fresh flowers are taken out for standby;

[0019] (4) The above-prepared decolorized fresh flowers are immersed in a dyeing agent for dyeing treatment to obtain dyed fresh flowers for standby;

[0020] (5) The dyed fresh flowers are placed in a drying room, the humidity is controlled to be 30%-35%, and the dyed fresh flowers are dried for 1-2 d, then the dyed fresh flowers are immersed in a post-treatment agent for treatment for 2-5 s, and then taken out, and the dyed fresh flowers are continuously treated in the drying room for 3-5 d to obtain the ever-blooming flowers.

[0021] Preferably, the mass ratio of the components in the decolorizing solution in the step (2) is citric acid:sodium chlorite:80% methanol solution = 5:1:150.

[0022] Preferably, the decolorizing treatment time in the step (2) is 10-15 d.

[0023] Preferably, the dyeing treatment time in the step (4) is 18-24 h.

[0024] The present application provides a kind of ever-blooming flower processing reagent and its preparation method for ever-blooming flower, compared with prior art, the advantages are as follows:

[0025] The present application uses dyeing agent and post-treatment agent as ever-blooming flower processing reagent, wherein a certain proportion of polyethylene glycol and methanol is set in the dyeing agent, and additional addition of dendrophenol effectively ensures the softness of petals, and effectively prevents fading, in addition, the emulsion prepared by using ethanol, hydrogenated castor oil, menthol, folic acid and deionized water as post-treatment agent can further prevent the fading and deformation of dyed ever-blooming flowers, and the present application carries out high-concentration carbon dioxide treatment on flowers after decolorization, which can effectively improve the uniformity of subsequent dyeing, and the use of subsequent post-treatment agent can maintain good flower shape in high-humidity environment, and comprehensively improve the decoration value of ever-blooming flowers. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of group 1 ever-blooming flowers in the embodiment of the present application before decolorization, before high-temperature and high-humidity treatment and after high-temperature and high-humidity treatment;

[0027] Figure 2 It is a schematic diagram of group 2 ever-blooming flowers in the embodiment of the present application before decolorization, before high-temperature and high-humidity treatment and after high-temperature and high-humidity treatment;

[0028] Figure 3A schematic diagram of the Group 3 ever-lasting flower before decolorization, before high-temperature and high-humidity treatment, and after high-temperature and high-humidity treatment in the embodiment of the present application;

[0029] Figure 4 A schematic diagram of the Group 4 ever-lasting flower before decolorization, before high-temperature and high-humidity treatment, and after high-temperature and high-humidity treatment in the embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment 1:

[0031] Preparation of each reagent in the ever-lasting flower treatment process:

[0032] 1. Preparation of the decolorizing solution:

[0033] Prepare the materials according to the mass ratio of citric acid: sodium chlorite: 80% methanol solution = 5:1:150;

[0034] Add sodium chlorite into the 80% alcohol solution and stir to dissolve, to obtain a sodium chlorite solution;

[0035] Add citric acid into the sodium chlorite and stir to dissolve, to obtain the decolorizing solution.

[0036] 2. Preparation of the dyeing agent:

[0037] 2.1. Preparation of the dyeing agent-1:

[0038] (1) Prepare the materials according to the following weight parts: polyethylene glycol 42 parts, methanol 62 parts, shanhudu phenol 3 parts, and alcohol-soluble pigment 5 parts;

[0039] (2) Dissolve the shanhudu phenol in methanol, and then mix the polyethylene glycol and alcohol-soluble pigment and stir to obtain the dyeing agent-1.

[0040] 2.2. Preparation of the dyeing agent-2:

[0041] (1) Prepare the materials according to the following weight parts: polyethylene glycol 42 parts, methanol 62 parts, and alcohol-soluble pigment 5 parts;

[0042] (2) Mix the methanol, polyethylene glycol and alcohol-soluble pigment and stir to obtain the dyeing agent-2.

[0043] 3. Preparation of the post-treatment agent:

[0044] (1) according to the following weight parts: ethanol 18 parts, hydrogenated castor oil 5 parts, menthol 3 parts, folic acid 3 parts, deionized water 9 parts;

[0045] (2) folic acid is dissolved in deionized water, and then ethanol and menthol are mixed, and ultrasonic homogenization is carried out at 400W power for 15min to obtain a mixed solution for standby;

[0046] (3) hydrogenated castor oil is added dropwise to the mixed solution at a rate of 5mL / min, and stirred at a speed of 700r / min during the dropwise addition, and after the dropwise addition is completed, stirring is continued at a speed of 1400r / min under ice water bath for 15min, to obtain a mixed emulsion as a post-treatment agent-1. Example 2:

[0047] Preparation of the immortal flower:

[0048] (1) select high-quality, healthy, and well-opened fresh flowers for standby;

[0049] (2) the fresh flowers are transferred to the decolorizing liquid within 24h, and are soaked and pressed to avoid floating and dehydration, the lid is covered, and after the fresh flowers in the decolorizing tank turn white (the time is about 10-15d), they are taken out, and the decolorized fresh flowers are obtained;

[0050] (3) the decolorized fresh flowers are transferred to methanol for soaking and cleaning for 24h, and then placed in a sealed device, the carbon dioxide concentration in the sealed device is adjusted to 1.5%, and the treatment is carried out for 35min, then the pre-treated decolorized fresh flowers are taken out for standby;

[0051] (4) the above pre-treated decolorized fresh flowers are immersed in the dyeing agent for dyeing treatment, and the dyed fresh flowers are obtained for standby;

[0052] (5) the dyed fresh flowers are placed in a drying room, the humidity is controlled at 30% for drying for 2d, then the dyed fresh flowers are immersed in the post-treatment agent for treatment for 5s, then taken out, and continue to be treated in the drying room for 5d, and the immortal flower is obtained.

[0053] Comparative Example 1:

[0054] Preparation of the immortal flower:

[0055] (1) select high-quality, healthy, and well-opened fresh flowers for standby;

[0056] (2) the fresh flowers are transferred to the decolorizing liquid within 24h, and are soaked and pressed to avoid floating and dehydration, the lid is covered, and after the fresh flowers in the decolorizing tank turn white (the time is about 10-15d), they are taken out, and the decolorized fresh flowers are obtained;

[0057] (3) the decolorized fresh flowers are transferred to methanol for soaking and cleaning for 24h, and the pre-treated decolorized fresh flowers are obtained for standby;

[0058] (4) The pretreated decolorized fresh flowers are immersed in a dyeing agent for dyeing treatment, to obtain dyed fresh flowers for standby;

[0059] (5) The dyed fresh flowers are placed in a drying room, the humidity is controlled at 30%, and the dyed fresh flowers are immersed in a post-treatment agent for treatment for 5 s after being dried for 2 d, and then the dyed fresh flowers are continuously treated in the drying room for 5 d, to obtain the ever-lasting flowers.

[0060] Comparative Example 2:

[0061] Preparation of the ever-lasting flowers:

[0062] (1) High-quality, healthy, and well-blooming fresh flowers are selected for standby;

[0063] (2) The fresh flowers are transferred to a decolorizing solution within 24 h for soaking and pressing to avoid floating and dehydration, the lid is covered, and after the fresh flowers in the decolorizing tank turn white (the time is about 10-15 d), the fresh flowers are taken out, to obtain decolorized fresh flowers;

[0064] (3) The decolorized fresh flowers are transferred to methanol for soaking and cleaning for 24 h, and then the decolorized fresh flowers are placed in a sealed device, the carbon dioxide concentration in the sealed device is adjusted to 1.5%, and the decolorized fresh flowers are statically treated for 35 min, and then the decolorized fresh flowers are taken out, to obtain pretreated decolorized fresh flowers for standby;

[0065] (4) The pretreated decolorized fresh flowers are immersed in a dyeing agent for dyeing treatment, to obtain dyed fresh flowers for standby;

[0066] (5) The dyed fresh flowers are placed in a drying room, the humidity is controlled at 30%, and the dyed fresh flowers are dried for 7 d, to obtain the ever-lasting flowers.

[0067] Detection:

[0068] Plateau red roses are used as experimental fresh flower materials, and the petals are selected to be thick, evenly distributed, round, and free of cracks; the flower center is round and centered; there are no pests and diseases, such as horse bites, spots, and sunburned flowers, and the diameter of the flower type is controlled to be 8-10 cm.

[0069] Different groups of ever-lasting flowers (5 flowers in each group) are prepared by the methods of the above-mentioned Example 2, Example 3, and Comparative Example 1, gardenia blue pigment is selected as an alcohol-soluble pigment, and the decolorization time is controlled to be 15 d, and the preparation methods of different groups of ever-lasting flowers, and the selection of dyeing agents and post-treatment agents are shown in Table 1:

[0070] Table 1

[0071]

[0072] The diameter of each group of the preserved flowers was measured after dyeing, and the values of brightness (L*), red-green deviation (a*), and yellow-blue deviation (b*) were detected by using a color difference meter. Then, each group of the preserved flowers was placed in an environment with a temperature of 45℃ and a humidity of 85% for 10 days (high temperature and high humidity treatment), and then the diameter of each group of the preserved flowers was measured again and detected by using a color difference meter. The specific results are shown in Tables 2 and 3 as follows:

[0073] Table 2 Average diameter of each group of the preserved flowers before and after high temperature and high humidity treatment

[0074]

[0075] Table 3 Average values of the colorimeter detection results of each group of the preserved flowers before and after high temperature and high humidity treatment

[0076]

[0077] From the above table, it can be seen that the diameter change of the preserved flowers in group 1 is smaller as a whole after high temperature and high humidity treatment. In addition, for the preserved flowers dyed blue, the L* value is usually lower, and the L* value is generally between 20-40 according to the difference of the dye, and the smaller the value, the darker the color (usually also indicates that the color is deeper, and if the color fades, the L* will increase accordingly). The a* value is basically between-5 and 5, and is usually close to 0, and the basic value deviation is caused by the existence of impurities in the dye reagent or incomplete discoloration of the original flowers. The b* mainly represents the yellow-blue deviation, and when the value is negative, it means blue, and the larger the negative value, the deeper the blue. From Table 3, it can be seen that after high temperature and high humidity treatment, the L* and b* of group 1 change less, indicating that the color retention effect is good, while the L* and b* of groups 3 and 4 change more, indicating that there is a certain degree of fading. In summary, the process and dyeing agent-1 of Example 2 used in group 1 can significantly ensure the stability of the flower shape and prevent fading of the preserved flowers, and comprehensively improve the quality of the preserved flowers.

[0078] The above examples are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of preparing an immortal flower, characterized by, The method for preparing the immortal flower comprises the following steps: (1) selecting high-quality, healthy, and well-blooming fresh flowers for use; (2) preparing a decolorizing solution by compounding sodium chlorite, 80% methanol solution, and citric acid, and placing the fresh flowers in the decolorizing solution for decolorizing treatment to obtain decolorized fresh flowers for use; (3) washing the decolorized fresh flowers with methanol, and then placing the decolorized fresh flowers in a sealed device, adjusting the carbon dioxide concentration in the sealed device to 1%-2%, and treating for 30-40 min, and then taking out the decolorized fresh flowers, and obtaining pretreated decolorized fresh flowers for use; (4) immersing the pretreated decolorized fresh flowers in a dyeing agent for dyeing treatment to obtain dyed fresh flowers for use; (5) placing the dyed fresh flowers in a drying room, controlling the humidity to be 30%-35%, and drying for 1-2 d, then immersing the dyed fresh flowers in a post-treatment agent for 2-5 s, and then taking out the dyed fresh flowers, and continuing to treat in the drying room for 3-5 d to obtain the immortal flower; The dyeing agent is composed of the following components in parts by weight: polyethylene glycol 40-45 parts, methanol 60-65 parts, dendrophenol 2-4 parts, and alcohol-soluble pigment 1-10 parts; and the post-treatment agent is composed of the following components in parts by weight: ethanol 16-20 parts, hydrogenated castor oil 4-6 parts, menthol 2-4 parts, folic acid 2-4 parts, and deionized water 8-10 parts.

2. The method for preparing the immortal flower according to claim 1, characterized in that: The preparation method of the dyeing agent is that the dendrophenol is dissolved in methanol, and then the polyethylene glycol and the alcohol-soluble pigment are mixed and stirred uniformly to obtain the dyeing agent. 3.The method for preparing the immortal flower according to claim 1, characterized in that: The preparation method of the post-treatment agent comprises the following steps: S1, dissolving folic acid in deionized water, then mixing ethanol and menthol, and ultrasonically homogenizing to obtain a mixed solution for use; S2, dropping hydrogenated castor oil into the mixed solution while stirring, and then continuing to stir at a speed of 1200-1400 r / min under ice water bath for 15-20 min after the dropping is completed to obtain a mixed emulsion as the post-treatment agent.

4. The method of claim 3, wherein the method is characterized by: The power of ultrasonic homogenization in step S1 is 400-600 W, and the homogenization time is 10-15 min. 5.The method for preparing the immortal flower according to claim 3, characterized in that: The dropping rate of the step of dropping while stirring in step S2 is 2-5 mL / min, and the stirring speed is 600-800 r / min. 6.The method for preparing the immortal flower according to claim 1, characterized in that: The mass ratio of the components in the decolorizing solution in step (2) is citric acid:sodium chlorite:80% methanol solution = 5:1:

150. 7.The method for preparing the immortal flower according to claim 1, characterized in that: The decolorizing treatment time in step (2) is 10-15 d. 8.The method for preparing the immortal flower according to claim 1, characterized in that: The dyeing treatment time in step (4) is 18-24 h.

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