JPH0558801A - Surface treating method of dried pressed flower and surface treating liquid therefor - Google Patents

Abstract

PURPOSE:To return a red petal of dried pressed flower, turned dark or purple by pH rise during drying, to original uniform color tone and simultaneously retain the recovered original color in a vivid state for a long time. CONSTITUTION:A mixed liquid of an organic weak acid such as lactic acid, ethyl alcohol and water, preferably a mixed liquid consisting of 5-30wt.% lactic acid, 10-30wt.% water, residual amount of ethyl alcohol and a small amount (<=0.1wt.%) of surfactant is applied in the surface of red petal dried and formed in a state or pressed flower and the petal raised its pH by the drying treatment is allowed to stand in weakly acid state. Then the original color-recovering reaction of petal by weak acidification is promoted by properly drying the petal (preferably while heating under light pressure) and simultaneously transpiration (drying) of alcohol and water in coating liquid is promoted to complete the surface treatment. Furthermore, though lactic acid is left on the petal after surface treatment, pollution or stain is not left to color tone and the surface state of the petal. The petal is quickly returned to the original color and weather resistance of the dye is improved by the above-mentioned treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment method for dried pressed flowers such as pressed flowers.

[0002]

2. Description of the Related Art When a flower is dried, some red petals are
In many cases, the color changes to dark or purple due to an increase in pH during drying, but conventionally, an organic strong acid aqueous solution such as citric acid has been applied to restore the color of the discolored petals.

[0003]

However, in the above-mentioned conventional example, since the coating solution is strongly acidic, a color tone different from the primary color appears, and the original petal color cannot be reproduced.

[0004]

Therefore, in the present invention, an organic weak acid such as lactic acid and a mixed solution of ethyl alcohol and water are applied to the surface of a red petal that is dried and formed into a pressed flower, and Next, the present invention provides a surface treatment method for dried pressed flowers, which is characterized by performing appropriate drying.

The composition of the weak organic acid solution is lactic acid 5
It is also characterized in that -30% by weight, 10-30% by weight of water, and the balance ethyl alcohol and a small amount of a surfactant are mixed.

[0006]

[Function] In the first step, a weak organic acid solution such as lactic acid is applied to petals of dried pressed flowers, and the petals whose pH is raised by the drying treatment are placed in a weakly acidic state. Next, as a second step, the petals are heated and dried under a light pressure to accelerate the color recovery reaction based on the weak acidification of the petals, and promote the evaporation (drying) of alcohol and water in the coating solution. Complete the surface treatment.

Although lactic acid remains on the petals after the surface treatment is completed, it does not leave stains or stains on the color tone and surface condition of the petals.

[0008]

EXAMPLES Examples of the present invention will be specifically described below.
On the urethane foam mat, the petals of cosmos, which are dark purple when dried, are arranged, and the lactic acid coating solution having the composition shown in Table 1 is thinly applied with a brush. Next, cover with another urethane foam mat,
A metal screen is placed as a weight, and hot air at 90 ° C. is blown from the surface for about 5 minutes to dry the surface, and the surface treatment of the dried pressed flower is completed.

[0009]

[Table 1]

As described above, according to the above-mentioned embodiment, in the first stage, the petals of a dried pressed flower are coated with a weak organic acid solution such as lactic acid, and the petals whose pH is raised by the dry pressed flower are weakened. Place in acidic condition. Next, in the second step, the petals are heated under a light pressure to accelerate the color recovery reaction based on the weak acidification of the petals, and to promote the evaporation (drying) of alcohol and water in the coating solution for surface treatment. To complete.

After the treatment is completed, lactic acid remains on the petals, but it does not leave stains or stains on the color tone or surface condition of the petals.

By this treatment, the cosmos petals return to the primary color of a uniform color tone and are used as beautiful cosmos pressed flowers. In addition, the cosmos treated with lactic acid is superior in weather resistance of the dye as compared with the one not treated.

[0013]

EFFECTS OF THE INVENTION According to the present invention, an aqueous solution of an organic weak acid such as lactic acid in alcohol is applied to a red petal of a dark pressed or purple dried pressed flower and heat-dried. It returns to the primary color. The primary color is maintained in a clear state for a long time.

The petals have a uniform color as a whole and have a good appearance.

Claims (2)

[Claims] 1. A method of applying a mixed solution of an organic weak acid such as lactic acid, ethyl alcohol, and water to the surface of a red petal that has been dried and formed into a pressed flower shape, and then appropriately performs drying. Surface treatment method for dried pressed flowers. 2. The composition of the weak organic acid mixture is 5 to lactic acid.
A surface treatment liquid for dried pressed flowers, which is obtained by mixing 30% by weight, 10 to 30% by weight of water, the balance ethyl alcohol and a small amount of a surfactant.