Method for absorbing color of fresh flower material

Abstract

The present application relates to a fresh flower material color absorption method, and belongs to the field of flower color absorption processing, and comprises the following steps: (1) dye solution preparation: uniformly mix water-soluble edible pigment, plant nutrient agent, mildew inhibitor, absorption aid, glycerol and pure water to obtain a composite color absorption solution; (2) fresh flower material selection and pruning pretreatment: select fresh flower materials with better quality within 5 hours, maintain the fresh flower materials in normal temperature water for 2-3 hours, and prune the bottom of the flower stem at an angle of 30-45 degrees; (3) color absorption treatment: immediately place the pruned fresh flower materials vertically in the color absorption solution, and the color absorption time is 2-3 days; (4) hanging and airing: select a ventilated and dry natural environment for inverted airing until no color fading occurs. The color absorption effect is stable, the color absorption efficiency is increased by about 30% compared with the traditional process, the fresh flower material activity can be effectively maintained, the fresh flower material color absorption time is prolonged, and the fresh flower material coloring uniformity is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of flower color absorption technology, specifically to a method for absorbing color from fresh flowers. Background Technology

[0002] Flower color absorption technology is an important value-added processing step in the flower industry. By artificially altering the natural color of flowers, it can meet the market's demand for diversified and personalized floral products, especially in festival celebrations, artistic flower arrangements, and commercial decoration. Flower color absorption is an important processing method for the floral industry to enhance the diversity of flower colors and increase the added value of products. The current mainstream color absorption methods rely on the transpiration of water from the vascular bundles of the flower stems to achieve coloring. It has the advantages of not damaging fresh flowers and high naturalness, and is widely used.

[0003] In existing technologies, flower color absorption mainly involves directly immersing fresh flowers in a prepared dye solution. This process suffers from uneven coloring and slow absorption rates. Some highly saturated colors require prolonged absorption, which can easily lead to stem rot and premature petal decay. This not only affects the appearance of the finished product but also shortens the shelf life of the flowers after absorption. Furthermore, existing color absorption formulas often focus solely on the absorption effect without considering the maintenance of flower cell activity during the absorption process, making them unsuitable for the color absorption needs of flowers with varying freshness in large-scale processing. For example, the processing technology and color absorption tank for preserved flowers using the absorption method described in application number CN201910864918.3 generally suffer from low absorption efficiency, unstable absorption effects, poor color uniformity, inability to maintain the physiological activity of the flowers, severe fading during drying, and easy wilting of the flowers, significantly impacting the product quality and market promotion of the color-absorbed flowers. Summary of the Invention

[0004] To overcome the problems existing in the background technology, the present invention provides a method for color absorption of fresh flowers, which can solve the defects of existing processes such as easy mold growth during color absorption, uneven coloring, serious fading during drying, hardening of flowers, poor compatibility with different varieties, and unstable mass production. It can also improve color absorption efficiency and achieve stable mass production.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a method for absorbing color from fresh flowers, comprising the following steps: (1) Preparation of dye solution: Mix water-soluble food coloring, plant nutrients, antifungal agent, absorption aid, glycerol and pure water evenly to obtain a composite color absorption solution. The food coloring has a mass-volume concentration of 1% to 5%, the plant nutrients have a mass-volume concentration of 1% to 3%, the antifungal agent has a mass-volume concentration of 0.1% to 0.3%, the absorption aid has a mass-volume concentration of 0.1% to 0.3%, the glycerol has a mass-volume concentration of 25% to 30%, and the remainder is pure water. (2) Fresh flower material selection and pruning pretreatment: Select fresh flowers that have been picked within 5 hours, are undamaged, moldy, and free from insects. First, keep the fresh flowers in room temperature water for 2 to 3 hours, then cut and prune the bottom of the fresh flower stems, and cut a 30° to 45° angled cut. (3) Color absorption treatment: Immediately place the pruned fresh flowers upright in the color absorption liquid, immerse the bottom of the fresh flower stems in the color absorption liquid, control the immersion depth to 5-10cm, place them in an environment with a temperature of 25-35℃ and a humidity of 60%-80%RH for color absorption, and the color absorption time is 2-3 days. (4) Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers and hang them upside down in a well-ventilated and dry natural environment for 3 to 5 days until there is no fading.

[0006] In the above technical solution, the fresh flowers include any one or more of Anna hydrangea, wood hydrangea, eucalyptus leaves, apple leaves, clematis, golden velvet, ferns, woolly pine, and baby's breath.

[0007] In the above technical solution, the plant nutrient agent mentioned in step 1 is either sucrose or glucose.

[0008] In the above technical solution, color is absorbed in an environment with a temperature of 32°C and a humidity of 70%RH as described in step 3.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention uses high-quality glycerol with a volume concentration of 25% to 30%. The high content of glycerol can penetrate deep into the intercellular spaces of petals to lock in water and color, improve the color absorption efficiency, and inhibit pigment precipitation during the drying process. It can also solve the industry pain points of severe fading and dry and hard petals in traditional color absorption and drying.

[0010] 2. The absorption aid enhances pigment penetration efficiency, solving the problems of slow coloring and white spots in hydrangeas and densely leafed plants.

[0011] 3. The anti-mold agent is suitable for long-term color absorption processes of 2-3 days, preventing mold and rot caused by prolonged soaking.

[0012] 4. Plant nutrients maintain the vitality of fresh flowers and prevent them from wilting and dying due to prolonged color absorption. Detailed Implementation

[0013] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] This application provides a method for absorbing color from fresh flowers, comprising the following steps: (1) Preparation of dye solution: Mix water-soluble food coloring, plant nutrients, antifungal agent, absorption aid, glycerol and pure water evenly to obtain a composite color absorption solution. The food coloring has a mass-volume concentration of 1% to 5%, the plant nutrients have a mass-volume concentration of 1% to 3%, the antifungal agent has a mass-volume concentration of 0.1% to 0.3%, the absorption aid has a mass-volume concentration of 0.1% to 0.3%, the glycerol has a mass-volume concentration of 25% to 30%, and the remainder is pure water. (2) Fresh flower material selection and pruning pretreatment: Select fresh flowers that have been picked within 5 hours, are undamaged, moldy, and free from insects. First, keep the fresh flowers in room temperature water for 2 to 3 hours, then cut and prune the bottom of the fresh flower stems, and cut a 30° to 45° angled cut. (3) Color absorption treatment: Immediately place the pruned fresh flowers upright in the color absorption liquid, immerse the bottom of the fresh flower stems in the color absorption liquid, control the immersion depth to 5-10cm, place them in an environment with a temperature of 25-35℃ and a humidity of 60%-80%RH for color absorption, and the color absorption time is 2-3 days. (4) Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers and hang them upside down in a well-ventilated and dry natural environment for 3 to 5 days until there is no fading.

[0016] Example 1 Preparation of dye solution: Mix 3% (w / v) food coloring, 1% (w / v) sucrose, 0.1% (w / v) antifungal agent, 0.1% (w / v) absorbent agent, and 25% (w / v) glycerol with the remainder pure water and stir until dissolved to obtain a composite dye absorption solution.

[0017] Fresh flower material selection and pruning pretreatment: Select fresh Anna hydrangeas picked within 5 hours as fresh flowers, ensuring that the selected flowers are intact, undamaged, free from any signs of mold or insect damage, to guarantee the best quality of fresh flowers. Place the selected fresh flowers in room temperature water for 2 hours to prevent the vascular bundles from shrinking, prolonging the overall color absorption period, and preventing the petal cells from becoming dehydrated, making it difficult for pigments to penetrate evenly, thus maintaining the activity of fresh flowers. Then, cut the bottom of the flower stem at a 45-degree angle to increase the water absorption cross-section.

[0018] Color absorption treatment: Immerse the flower stems of fresh flowers in the dye solution to a depth of 5cm, and then place them in a constant temperature and humidity environment, controlling the ambient temperature at 32℃ and the relative humidity at 70%RH, for color absorption treatment for 2 days.

[0019] Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers and hang them upside down in a well-ventilated and dry natural environment for 3 days until there is no fading, all are evenly colored, the edges of the petals are colored, there are no white spots in the flower center, and the flowers feel soft and fluffy.

[0020] Example 2 Preparation of dye solution: Mix 4% (w / v) food coloring, 2% (w / v) sucrose, 0.2% (w / v) antifungal agent, 0.2% (w / v) absorbent, and 25% (w / v) glycerol with the remainder pure water and stir until homogeneous to obtain a composite dye absorption solution.

[0021] Fresh flower material selection and pruning pretreatment: Select fresh Anna hydrangeas picked within 5 hours as fresh flowers, ensuring that the selected flowers are intact, undamaged, free from any signs of mold or insect damage, to guarantee the best quality of fresh flowers. Place the selected fresh flowers in room temperature water for 3 hours, and make a 40-degree oblique cut at the bottom of the flower stems to increase the water absorption cross-section.

[0022] Color absorption treatment: Immerse the flower stems of fresh flowers in the dye solution to a depth of 7cm, and then place them in a constant temperature and humidity environment, controlling the ambient temperature at 25℃ and the relative humidity at 60%RH, for color absorption treatment for 3 days.

[0023] Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers and hang them upside down in a well-ventilated and dry natural environment for 4 days until there is no fading. The finished product will have a full color, soft petals and no mold spots.

[0024] Example 3 Dye solution preparation: Mix 3% (w / v) food coloring, 3% glucose, 0.3% antifungal agent, 0.3% absorbent, 28% glycerol, and the remainder pure water until homogeneous to obtain a composite absorbent solution.

[0025] Fresh flower material selection and pruning pretreatment: Select fresh eucalyptus, apple leaves and clematis branches within 5 hours of picking as fresh flowers. Ensure that the selected flowers are intact, undamaged, free from any signs of mold or insect damage. Place the selected fresh flowers in room temperature water for 2 hours and cut the bottom of the flower stems at a 45° angle.

[0026] Color absorption treatment: Immediately place the freshly pruned flowers upright in the color absorption solution, immerse the bottom of the fresh flower stems in the solution to a depth of 8cm, and place them in an environment with a temperature of 35℃ and a humidity of 65%RH to absorb the color naturally for 3 days.

[0027] Hanging and drying: After coloring, take it out and hang it upside down to ventilate and dry for 3 days. The leaves will be evenly colored, without local light-colored patches, and will not develop mold after long-term storage. The leaves will be flexible and not brittle.

[0028] Example 4 Preparation of dye solution: Mix 4% (w / v) food coloring, 3% sucrose, 0.3% antifungal agent, 0.3% absorbent agent, and 30% glycerol with the remainder pure water and stir until homogeneous to obtain a composite absorbent solution.

[0029] Fresh flower material selection and pruning pretreatment: Baby's breath and golden goose velvet picked within 5 hours are first placed in room temperature water for 3 hours to prevent the vascular bundles from shrinking, the overall color absorption period from being prolonged, the petal cells from being dehydrated, and the pigment from being difficult to penetrate evenly, which can easily result in coloring on the petal edges, leaving the flower center white, and local color differences; after taking them out, the flower stems are cut at a 45° angle.

[0030] Color absorption treatment: Immerse the ends of fresh flower stems in a pre-prepared dye solution to a depth of approximately 9 cm. Place the entire apparatus in a constant temperature and humidity environment, strictly controlling the temperature at 32 degrees Celsius and maintaining a relative humidity of 70% RH. Under these conditions, allow the flower stems to continuously absorb the dye for a total of 2 days.

[0031] Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers, invert them and ventilate them for 4 days to dry. All the small flower heads are evenly colored, with no white flower cores, and they feel soft and fluffy.

[0032] Example 5 Dye solution preparation: Mix 5% (w / v) food coloring, 3% glucose, 0.3% antifungal agent, 0.3% absorbent, 30% glycerol, and the remainder pure water until homogeneous to obtain a composite absorbent solution.

[0033] Fresh flower material selection and pruning pretreatment: Select fresh eucalyptus, apple leaves and clematis branches within 5 hours of picking as fresh flowers. Ensure that the selected flowers are intact, undamaged, free from any signs of mold or insect damage. Place the selected fresh flowers in room temperature water for 2 hours, and then cut the bottom of the flower stems at a 45° angle.

[0034] Color absorption treatment: Immediately immerse the ends of fresh flower stems in the pre-prepared dye solution to a depth of approximately 10 cm. Place the entire apparatus in a constant temperature and humidity environment, strictly controlling the ambient temperature at 35℃ and maintaining a relative humidity of 75%RH. Under these conditions, allow the flower stems to continuously absorb the dye for a total of 3 days.

[0035] Hanging and drying: Once the petals have reached the preset coloring effect, remove the fresh flowers and hang them upside down in a well-ventilated and dry environment for 4 days. This method ensures high color consistency across various types of fresh flowers, prevents stem rot during prolonged soaking, and maintains stable color without color bleeding after drying. The flowers are also less prone to drying out or fading when stored on shelves.

[0036] Example 6 Dye solution preparation: Mix 5% (w / v) food coloring, 3% glucose, 0.3% antifungal agent, 0.3% absorbent, 30% glycerol, and the remainder pure water until homogeneous to obtain a composite absorbent solution.

[0037] Fresh flower material selection and pruning pretreatment: Select fresh hydrangea, fern leaves and woolly pine within 5 hours of picking as fresh flowers, and ensure that the selected flowers are intact, undamaged, free from any signs of mold or insect damage. Place the selected fresh flowers in room temperature water for 3 hours and cut the bottom of the flower stem at a 45° angle.

[0038] Color absorption treatment: Immediately immerse the end of the flower stem into the pre-prepared dye solution to a depth of about 8cm. Place the entire device in a constant temperature and humidity cultivation environment, with the ambient temperature strictly controlled at 35℃ and the relative humidity maintained at 80%RH. Under these conditions, allow the flower stem to continuously absorb the dye for a period of 3 days.

[0039] Hanging and drying: Once the petals have reached the preset coloring effect, remove the fresh flowers and hang them upside down in a well-ventilated and dry environment for 5 days. This method ensures high color consistency across various types of fresh flowers, prevents stem rot during prolonged soaking, and maintains stable color without color bleeding after drying. The flowers are also less prone to drying out or fading during shelf storage.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A method for absorbing color from fresh flowers, characterized in that: Includes the following steps: (1) Preparation of dye solution: Mix water-soluble food coloring, plant nutrients, antifungal agent, absorption aid, glycerol and pure water evenly to obtain a composite color absorption solution. The food coloring has a mass-volume concentration of 1% to 5%, the plant nutrients have a mass-volume concentration of 1% to 3%, the antifungal agent has a mass-volume concentration of 0.1% to 0.3%, the absorption aid has a mass-volume concentration of 0.1% to 0.3%, the glycerol has a mass-volume concentration of 25% to 30%, and the remainder is pure water. (2) Fresh flower material selection and pruning pretreatment: Select fresh flowers that have been picked within 5 hours, are undamaged, moldy, and free from insects. First, keep the fresh flowers in room temperature water for 2 to 3 hours, then cut and prune the bottom of the fresh flower stems, and cut a 30° to 45° angled cut. (3) Color absorption treatment: Immediately place the pruned fresh flowers upright in the color absorption liquid, immerse the bottom of the fresh flower stems in the color absorption liquid, control the immersion depth to 5-10cm, place them in an environment with a temperature of 25-35℃ and a humidity of 60%-80%RH for color absorption, and the color absorption time is 2-3 days. (4) Hanging and drying: After the petals have reached the preset coloring effect, take out the fresh flowers and hang them upside down in a well-ventilated and dry natural environment for 3 to 5 days until there is no fading.

2. The method for absorbing color from fresh flowers according to claim 1, characterized in that: The fresh flowers mentioned include any one or more of Anna hydrangea, wood hydrangea, eucalyptus leaves, apple leaves, clematis, golden velvet, ferns, woolly pine, and baby's breath.

3. The method for absorbing color from fresh flowers according to claim 1, characterized in that: The plant nutrient agent mentioned in step 1 is either sucrose or glucose.

4. The method for absorbing color from fresh flowers according to claim 1, characterized in that: Color absorption is performed in an environment with a temperature of 32°C and a humidity of 70%RH as described in step 3.