JPS6154761B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to accessories such as brooches, earrings, pendants, and ties, artificial flowers, and biological specimens made of leaves, petals, insects, etc., and methods for manufacturing the same.

It is extremely difficult to coat living organisms that have a cuticle layer, such as tree leaves and insects, with resin. This is thought to be because the cuticle layer mainly consists of cutin in plants and chitin in arthropods such as insects, which causes the resin to "glue" poorly. Therefore, even if a biological body having a cuticle layer is coated with a resin, the resin easily peels off.

Furthermore, the coating resin must also have strength and appropriate flexibility. Especially the leaves,
When making accessories using thin biological bodies such as flower petals, it is necessary to have flexibility to prevent the resin from cracking due to impact.

However, as described above, a resin having strength and appropriate flexibility will easily peel off even if it is coated on a biological body having a cuticle layer.

Therefore, the present invention removes an organism having a dry cuticle layer by dissolving and removing all or the surface layer of the cuticle layer, and applying a urethane oligomer layer to the outer surface of the organism from which all or the surface layer of the cuticle layer has been removed. The biological body is immersed in a mixture with a urethane oligomer liquid to form a urethane oligomer layer, and a polyester coating agent is applied onto the urethane oligomer layer to impart strength and appropriate flexibility to the biological body. The purpose is to form a resin layer with

Hereinafter, this invention will be explained in detail based on an example of manufacturing a brooch using tree leaves as a material.

The leaves of trees used as materials are selected from durable ones such as cherry, fig, and persimmon.

First, the leaves are sealed in a container containing a desiccant such as silica gel and dried for two to three days.
Leaves dried in this way have almost no change in color from before drying.

Dried tree leaves are a mixture of methylene chloride, a solvent, and a urethane oligomer liquid (moisture curing type) for concrete sealer (in terms of weight ratio).
Immerse in methylene chloride 1 and urethane oligomer liquid 2 for 1 to 2 days.

During this soaking process, cutin, which is the main component of the cuticle layer of leaves, is eluted by ethylene chloride, so that the urethane oligomers form a urethane oligomer layer on the leaves.

In addition, as a solvent, it is also possible to use acetone, toluene, etc. that can dissolve the cuticle layer.

Next, the leaves soaked in the mixture of methylene chloride and urethane oligomer liquid are dried for about 1 hour.

Finally, a polyester paint is applied.This polyester paint is made by combining a water-like gel coat polyester paint with a low viscosity and a syrup-like polyester paint with a high viscosity for concrete painting. They were mixed at a ratio of 5:3. The former provides strength and hardness, and the latter provides appropriate flexibility. The polyester coating agent for gel coat is made by adding octenthane cobalt or nastenethane cobalt as an accelerator and peroxide as a catalyst to polyester. Polyester for concrete coating is made by adding peroxide as a catalyst to polyester. Both are room temperature curing types. If desired, in order to further increase the viscosity, dental instant polymerization resin (acrylic adhesive of powdered methacrylic acid resin) may be mixed at a weight ratio of 2.

Using a brush, apply the above-mentioned polyester paint mixture several times to a tree leaf on which reinforcing piano wire, pins, etc. are placed on the back side to give it thickness. Apply one coat to the surface. After coating, it may be dried at room temperature. There is no deformation, discoloration, or cracking after drying.

As detailed above, the feature of the present invention is that a urethane oligomer layer is formed by eluting all or a part of the cuticle layer on the outer surface of a living organism, and a polyester coating agent is applied on the urethane oligomer layer. It's about coating.

Experiments have shown that if a synthetic resin is directly coated on a material, it will peel off immediately due to the presence of the cuticle layer, and even if all or part of the cuticle layer is removed with a solvent, the synthetic resin coating will not be applied. Can not. It is only possible to coat a material with a synthetic resin after forming a urethane oligomer layer on the material. Furthermore, only polyester-based coating agents are compatible with the urethane oligomer layer.

In addition, using the method described above, flower petals, insects such as cicadas,
Arthropods such as shrimp can be used as accessories or biological specimens.

Claims (1)

[Scope of Claims] 1. An organism coated with a synthetic resin, characterized in that a polyester layer is coated on a urethane oligomer layer formed on the outer surface of an organism such as a plant or insect having a cuticle layer. 2 A solvent capable of dissolving cutin or chitin by drying organisms such as plants and insects that have a cuticular layer;
A method for producing a living organism coated with a synthetic resin, which comprises immersing the organism in a mixture with a urethane oligomer liquid, drying it, and coating it with a polyester coating agent.