CN110920313A

CN110920313A - Method for making Chinese rose permanent flower

Info

Publication number: CN110920313A
Application number: CN201911353420.7A
Authority: CN
Inventors: 朱艳; 严丹; 赵钰琦; 朱梦真; 刘湉; 刘洁; 葛甜婷
Original assignee: China Pharmaceutical University
Current assignee: China Pharmaceutical University
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-03-27

Abstract

The invention discloses a method for making Chinese rose permanent flower, which comprises the following steps: (1) selecting materials: selecting healthy and plump fresh Chinese rose cut flowers, and if the fresh Chinese rose cut flowers are not fresh, carrying out rehydration treatment; (2) and (3) dehydration and decoloration treatment: soaking fresh cut flowers of China rose in penetrating fluid at 15-35 ℃; (3) dyeing treatment: soaking and dyeing the dyeing liquid at normal temperature for 23-36 h; (4) and (3) drying: and (5) ventilating and drying at normal temperature for about 2 weeks to obtain the finished product of the immortal flower. The method is simple and easy to operate, and the obtained perpetual rose flower is clear in vein, lifelike, can be stored for a long time, and is suitable for large-scale production of the perpetual rose flower.

Description

Method for making Chinese rose permanent flower

Technical Field

The invention relates to the technical field of processing of perpetual flowers, in particular to a method for manufacturing Chinese rose perpetual flowers.

Background

China Rose (Rose chinensis) is a plant of rosa of rosaceae, blossoms in four seasons, is rich and gorgeous in flower color, has beautiful flower shape, is the head of the world's four major cut flowers, has high ornamental value, is beneficial to being ' queen in flower ', and is deeply favored by consumers. The Chinese rose, as an indigenous flower in China, has the advantages of wide adaptability, long flowering period, good hue and the like, and provides excellent flower materials for the production of the permanent flower. Meanwhile, the fresh-keeping period is short, and the method is an excellent flower material for preparing the permanent flower.

The permanent flower is also called preserved flower and ecological flower, and is named as 'permanent non-withering flower' abroad, and is a dried flower which is processed by taking fresh cut flowers as raw materials through a series of complex procedures of dehydration, decoloration, dyeing, drying and the like. The permanent flower is actually dry flower, but has essential difference with the common dry flower: the water in the fresh flower is replaced by the organic solvent which is not easy to volatilize, so that the color, the shape, the hand feeling and the like of the permanent flower are almost the same as those of the fresh flower. The flower fresh-keeping agent not only can have richer colors than fresh cut flowers, but also can keep the basic characteristics of the fresh flowers, is convenient to store and long in viewing period, is not limited by seasons, and improves the viewing value and the economic value of flowers to the maximum extent.

Since the emergence of the countries such as France and Germany in the last century, the perpetual flowers are always favored and touted by the upper-level consumers in the Western countries. Europe consumes 200-300 billion Euros of dry flowers annually, and is increasing at a rate of over 15% annually. Then, Japanese immortal flower enterprises such as Florever company and the like rise successively and greatly advance to the China market. The national immortal flower market is almost monopolized by japan (for example, brands such as "Forever", "Roseamor", "native agriculture garden", and the like) at first, after 2013, the immortal flower is more concerned by the national market, and the national immortal flower is mainly small micro shops in the Yunnan region at first, and then some national immortal flower enterprises are continuously established, and the national famous brands such as "roseonly", "wild animal group", "flower ", and the like gradually appear.

At present, China's ever-growing flower market is far inferior to developed countries such as Europe, America, Japan and Korean. The imported permanent flower has thick hand feeling, compact petals, longer storage time, richer colors, stable and environment-friendly processing technology, more mature dyeing technology, strong preservation technology and high safety standard. Most of the immortal flowers in the market of China have the problems of poor flower shape, crisp texture, easy moisture regain, fading and the like, and the production process is complicated, the formula is complex, and the requirement on drying equipment is high. Compared with foreign countries, the production of the perpetual flowers in China basically exists in a small workshop form, and the production technology still belongs to the grope stage. Along with the improvement of the living standard of the material of people, the demand of the immortal flower is greatly improved, so that the immortal flower industry has wide market prospect and great economic benefit.

Disclosure of Invention

The purpose of the invention is as follows: the invention provides a method for making Chinese rose permanent flower, which solves the problems of complicated preparation process, complex formula and poor quality of the permanent flower in the prior art.

The technical scheme is as follows: the invention relates to a method for making Chinese rose permanent flower, which comprises the following steps:

(1) selecting materials: selecting fresh cut Chinese rose flowers which contain buds and turn outwards at the outermost layer.

(2) And (3) dehydration and decoloration treatment: soaking the flowers selected in the step (1) in a dehydration and decoloration solution for permeation treatment, wherein the dehydration and decoloration solution comprises a mixed solution of 30-50% of methanol, 30-45% of absolute ethyl alcohol and 5-40% of isopropanol by volume fraction or a mixed solution of 35-50% of methanol, 35-45% of absolute ethyl alcohol and 5-30% of propylene glycol by volume fraction.

(3) Dyeing treatment: soaking the flower subjected to the permeation treatment in the step (2) in a dyeing solution for dyeing, wherein the dyeing solution comprises a mixed solution of 66-67% of absolute ethyl alcohol, 28-29% of polyethylene glycol and 4-5% of dimethyl silicone oil in volume fraction, and adding 12-20g/L of citric acid, 2-5g/L of sodium citrate and 2-10g/L of edible pigment.

(4) And (3) drying: and (4) drying the flowers dyed in the step (3) to obtain the Chinese rose permanent flowers.

In the step (1), the fresh cut flowers of the Chinese rose are preferably 'Fendla' or 'color rose'. The fresh cut rose flowers are preferably healthy and full flowers with straight branches as much as possible, and the flowers are bud-like (slightly opened).

If the flowers are not fresh, the Chinese rose fresh cut flowers are subjected to rehydration treatment. The rehydration treatment comprises the following steps: soaking in normal saline water at the water level of 1/2 mm, and soaking for 0.5-3 hr.

In the step (2), the infiltration treatment time is 15-26 h. Preferably 18-19h, more preferably 18.5 h. And (5) permeating at normal temperature.

In the step (3), the soaking and dyeing time is 23-36 h. Preferably 23-25h, more preferably 24 h. Soaking at normal temperature.

In the step (3), the edible pigment is pigment with any color or pigment mixed in any proportion.

In the step (4), the drying adopts a ventilation drying mode.

The drying time is 1-3 weeks. Preferably for 2 weeks. Drying at normal temperature.

Has the advantages that: 1. the manufacturing method simplifies the manufacturing process of the Chinese rose permanent flower, combines the dehydration, the decoloration and the permeation into one step, integrates the dyeing and shape protection into one step, does not need physical shape protection any more, and reduces the influence of physical residues on the appearance; 2. the manufacturing process is simplified, the manufacturing difficulty and cost are reduced, and the popularization and large-scale production are facilitated; 3. the formula is simplified, compared with the existing permanent flower, the long-time replacement dyeing process can replace methanol and isopropanol with certain toxicity in the early dehydration, decoloration and permeation process, and nontoxic and harmless reagents are selected, so that the permanent flower is safe, environment-friendly, low in price and easy to obtain to the maximum extent.

Drawings

FIG. 1 is a fresh cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 1 of the present invention;

FIG. 2 is a fresh cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 2 of the present invention;

FIG. 3 is a fresh cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 3 of the present invention;

FIG. 4 is a fresh cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 4 of the present invention;

FIG. 5 is a fresh cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 5 of the present invention;

FIG. 6 is a drawing (a) of fresh cut flowers, a drawing (b) of permeation effect, a drawing (c) of replacement dyeing effect, and a drawing (d) of drying effect in example 6 of the present invention;

FIG. 7 shows a fresh-cut flower pattern (a), a permeation effect pattern (b), a substitution staining effect pattern (c), and a drying effect pattern (d) in example 7 of the present invention.

Detailed Description

Example 1

The method for making the Chinese rose permanent flower comprises the following steps:

(1) rehydration of China rose flowers: selecting fresh cut flower Chinese rose variety 'color rose', cutting off the base of the stem, soaking the remaining stem with physiological saline at the water level of about 1/2 for 0.5-3h, wherein the length of the stem is about 30 cm.

(2) And (3) infiltration: soaking the Chinese rose flower in a mixed solution of 30% methanol, 30% absolute ethyl alcohol and 40% isopropanol by volume for 18.5 h.

(3) And (3) replacement: and (3) soaking the Chinese rose flowers treated in the step (2) for 24 hours by mixing 67% of absolute ethyl alcohol, 28% of glycerol, 5% of dimethyl silicone oil, 14.5g/L of citric acid, 2.8g/L of sodium citrate and 2g/L of lemon yellow in volume fraction.

(4) And (3) drying: and (4) drying the Chinese rose flowers treated in the step (3) in a ventilation manner under normal pressure, wherein the drying time is 2 weeks, and the drying temperature is room temperature (about 25 ℃).

The effect diagram of each step of this embodiment is shown in fig. 1.

Example 2

(2) And (3) infiltration: soaking the Chinese rose flower for 18.5h by using a mixed solution of 40% methanol, 40% absolute ethyl alcohol and 20% isopropanol by volume.

The effect diagram of each step of this embodiment is shown in fig. 2.

Example 3

(3) And (3) replacement: and (3) mixing 28% of polyethylene glycol, 62% of absolute ethyl alcohol, 5% of glycerol, 5% of dimethyl silicone oil, 14.5g/L of citric acid, 2.8g/L of sodium citrate and 2g/L of lemon yellow according to volume fraction, and soaking the Chinese rose flowers treated in the step (2) for 24 hours.

The effect diagram of each step of this embodiment is shown in fig. 3.

Example 4

(2) And (3) infiltration: soaking the Chinese rose flower in a mixed solution of 50% of methanol, 45% of absolute ethyl alcohol and 5% of propylene glycol by volume for 18.5 h.

(3) And (3) replacement: and (3) soaking the Chinese rose flowers treated in the step (2) for 24 hours by mixing 28% of polyethylene glycol, 67% of absolute ethyl alcohol and 5% of dimethyl silicone oil with 14.5g/L of citric acid, 2.8g/L of sodium citrate and 2g/L of lemon yellow in volume fraction.

The effect chart of each step of the embodiment is shown in fig. 4.

Example 5

(2) And (3) infiltration: soaking the Chinese rose flower in a mixed solution of 15% methanol, 15% absolute ethyl alcohol and 70% isopropanol by volume for 18.5 h.

The effect chart of each step of the embodiment is shown in fig. 5.

Example 6

(1) rehydration of China rose flowers: selecting a fresh cut flower Chinese rose variety 'Fendla', cutting off the base of the stem, soaking the remaining stem with physiological saline for 0.5-3h, wherein the length of the stem is about 30cm, and the water level is about the height of the stem 1/2.

(3) And (3) replacement: and (3) soaking the Chinese rose flowers treated in the step (2) for 24 hours by mixing 48% of absolute ethyl alcohol, 28% of polyethylene glycol, 5% of glycerol, 14% of propylene glycol and 5% of simethicone with 14.5g/L of citric acid, 2.8g/L of sodium citrate and 2g/L of lemon yellow in volume fraction.

The effect chart of each step of the embodiment is shown in fig. 6.

Example 7

The effect chart of each step of the embodiment is shown in fig. 7.

The permeation and displacement effects of the examples are illustrated by the tabular data below:

TABLE 1 comparison of the effects of the penetrants

Illustrated by the comparative effect of table 1 above: the penetration effect is obtained according to a single variable principle, but the penetration effect cannot be accurately reflected after penetration is finished, and can be accurately reflected only after subsequent replacement dyeing is finished. The preferred permeate combination is 20% isopropanol + 40% methanol + 40% absolute ethanol.

TABLE 2 comparison of replacement fluids

Illustrated by the comparative effect of table 2 above: the addition of glycerol and methanol to the replacement liquid can cause the perpetual rose to have soft and permeable edges in different degrees, and the higher the content of the glycerol is, the more serious the waxy feeling is. In the replacement liquid without glycerol, the ratio of the polyethylene glycol to the absolute ethyl alcohol influences the hardness and brittleness of the whole immortal flower, and the content of the absolute ethyl alcohol is preferably 1.5-4 times, preferably 2.4 times of the content of the polyethylene glycol calculated by experimental data. The preferable combination of the displacement liquid is 28 percent of polyethylene glycol, 67 percent of absolute ethyl alcohol, 5 percent of dimethyl silicone oil, 14.5g/L of citric acid, 2.8g/L of sodium citrate and 2g/L of lemon yellow.

Claims

1. A method for making Chinese rose permanent flower is characterized by comprising the following steps:

(1) selecting materials: selecting fresh cut Chinese rose flowers which contain buds and turn outwards at the outermost layer;

(2) and (3) dehydration and decoloration treatment: soaking the flowers selected in the step (1) in a dehydration and decoloration solution for permeation treatment, wherein the dehydration and decoloration solution comprises 30-50% of methanol, 30-45% of absolute ethyl alcohol and 5-40% of isopropanol by volume fraction or 35-50% of methanol, 35-45% of absolute ethyl alcohol and 5-30% of propylene glycol by volume fraction;

(3) dyeing treatment: soaking the flower subjected to the permeation treatment in the step (2) in a dyeing solution for dyeing, wherein the dyeing solution comprises 66-67% of absolute ethyl alcohol, 28-29% of polyethylene glycol and 4-5% of dimethyl silicone oil in volume fractions, and citric acid with the concentration of 12-20g/L, sodium citrate with the concentration of 2-5g/L and edible pigment with the concentration of 2-10g/L are added;

2. The method of manufacturing according to claim 1, wherein: in the step (1), healthy and plump fresh Chinese rose cut flowers are selected.

3. The method of manufacturing according to claim 1, wherein: and when the fresh cut flowers of the Chinese roses are not fresh, rehydration treatment is needed.

4. The method of manufacturing according to claim 1, wherein: in the step (2), the infiltration treatment time is 15-26 h.

5. The method of manufacturing according to claim 1, wherein: in the step (3), the dyeing treatment time is 23-36 h.

6. The method of manufacturing according to claim 1, wherein: in the step (3), the edible pigment is pigment with any color or pigment mixed in any proportion.

7. The method of manufacturing according to claim 1, wherein: in the step (4), the drying is preferably performed by means of ventilation drying.

8. The manufacturing method according to claim 1 or 7, characterized in that: the drying time is 1-3 weeks.