JPH0441784A - Rush not changing color and not using dyed mud, tatami facing not changing color, and not using dyed mud, and regeneration of old tatami - Google Patents

Abstract

PURPOSE:To obtain a rush having a clear color at low cost, not causing change of color by impregnating dried reaped rush with a pigment resin solution prepared by blending a solution of the pigment in a solvent with a urethane resin and a water resistance enforcing agent. CONSTITUTION:Reaped rush, without being subjected to mud dyeing, is dried and impregnated with a solution of pigment resin prepared by dissolving the pigment in an acrylic solvent or vinyl acetate-based solvent, and adding a urethane resin and a water resistance enforcing agent (e.g. diamine-based compound) to the solution to give a rush having a clear color and not causing change of color. By the same way as the above-mentioned method, TATAMI facing (the surface mat of TATAMI in Japanese life) is dyed or sprayed to give clear TATAMI facing not causing dust pollution (since mud drying is not carried out). Old TATAMI can inexpensively be regenerated by the similar dyeing method.

Description

Detailed Description of the Invention ■1 Purpose of the Invention (1) Industrial Field of Application The present invention provides a permanent color rush dyed with a pigment resin solution, a permanent color tatami surface dyed with a pigment resin solution, and a method for recycling old tatami mats. It is related to.

(2) Conventional technology Traditionally, farmers cultivating rush grass have dyed the cut grass by soaking it in a tank containing a mud dye solution, and then drying it in the sun or using hot air. The straw is dried in a dryer to preserve its unique bluish color, wrapped in a plastic bag and stored in a warehouse, etc. The stored straw is taken out one by one and woven into tatami mats using a tatami facing weaving machine. It is something that In addition, for tatami manufacturers,
The company purchases tatami mats from farmers and dealers, manufactures and sells tatami mats.

In addition, the colored rush used for weaving by flower shops involves the above-mentioned pour dyeing, and the dried rush is colored and finished using ordinary dyes.

(3) Problems to be solved by the invention However, because the dyed and dried strawberry has dyed soil attached to it, the dyed soil that was attached during weaving of the tatami surface floats in the processing room as dust. There is a danger of harming the health of workers as a pollution.

Furthermore, when handling woven tatami covers, the dyed soil attached to the rushes tends to float.

In addition, new tatami mats with freshly woven tatami mats are pasted,
Within a few months after it is installed in the home, its color changes from blue to yellowish brown and loses its freshness, and its light resistance, durability, and water resistance are low. Even if the tatami mats are of excellent quality, the tatami mats will discolor after a few years and will have to be replaced.

In addition, we also use pour dyeing for the colored rushes used in flower shop weaving.
When dyeing dried straw grass, there were problems such as dust floating in the air and difficulty in producing clear colors when colored with dyes.

The present invention was made in view of the above-mentioned conventional problems, and its first purpose is to dry the cut grass grass without pouring dyeing it, dissolve the pigment, and at the same time use urethane resin and water-resistance reinforcing agent. By dyeing with a pigment resin solution containing added tatami mats, there is no dust pollution when weaving the tatami surface, and the colors are vivid. Discoloration can be suppressed as much as possible when sunburned, and the color remains the same even when used as coloring straw for flower shops. To provide a fixed-color rush that has clear color, does not cause dust pollution, discoloration, etc., and is inexpensive to produce.

In addition, the second purpose was to weave the tatami surface with dried straw grass without dyeing, and dye this tatami surface with a pigment resin solution in which pigments were dissolved and urethane resin and a water resistance enhancer were added. To provide a tatami mat with clear color, excellent light resistance, and durability without generating dust during handling and manufacturing of the tatami mat.

Furthermore, the third objective is to spray the pigment resin solution on the tatami mats of tatami mats that are currently in use and have discolored, and color them in the same color as new tatami mats, thereby making it possible to replace old tatami mats at low cost without having to replace the tatami mats. The goal is to provide a way to play.

■1 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention develops dried straw grass, which is obtained by drying cut grass grass without pouring dyeing, into a desired color. The product is composed of unchangeable color rush that does not use dyeing soil, which is obtained by dissolving pigment in a solvent and dyeing it with a pigment resin solution to which a urethane resin and a water resistance enhancer are added, and then heating and drying the rush.

Next, the tatami surface is woven from dried straw grass that has been dried without pouring the cut grass, and a pigment resin solution is prepared by dissolving a pigment that develops the desired color in a solvent and adding a urethane resin and a water resistance enhancer. The tatami mat surface is made of a colorless tatami mat surface that does not use dyed soil and is obtained by dyeing the tatami surface, or by spraying the pigment resin solution on the tatami surface, and then heating and drying the tatami surface.

Furthermore, a pigment resin solution prepared by dissolving a pigment that develops a desired color in a solvent and adding urethane resin and a water resistance enhancer is sprayed on the tatami facing part of the old tatami, and then the tatami facing part is heated.
It consists of a method of recycling old tatami mats that have been dried.

(2) Effect In the unchanging color rush of the first invention, the cut rush is dried without being poured. Next, the simple rush is immersed in a pigment resin solution in which a pigment that develops a desired color is dissolved in a solvent, and a urethane resin and a water resistance enhancer for increasing water resistance are added to color the rush. It is heated and dried. The pigment attached to the rush is
It is firmly fixed with urethane resin and has excellent light resistance, durability, and water resistance, and the color remains clear and unchanging. When weaving tatami facings and hanaya using unchangeable straw grass colored in the desired color, since it is not poured, there is no floating dust, which improves the health of workers and provides high-quality products. becomes.

Next, in the unchanging color tatami facing of the second invention, after the tatami facing is woven with dry straw that is not dyed with mud, a pigment that develops a desired color is dissolved in a solvent, and a urethane resin and a water resistance strengthening agent are added. Dip the tatami surface into a resin solution or dye it.
Alternatively, it is sprayed onto the tatami mat surface and then heated and dried. Similarly, the pigment is fixed to the rush with urethane resin, and it is possible to obtain an unchanging tatami mat surface with excellent light resistance, durability, and water resistance, and vivid colors. Become.

Furthermore, in the method for recycling old tatami mats of the third invention, a pigment resin solution containing a pigment that develops a desired color is dissolved in a solvent and a urethane resin and a water resistance enhancer are added to the surface of the discolored tatami surface, and a pigment resin solution is sprayed on the surface of the discolored tatami mat surface. After that, by drying the old tatami mats, they can be regenerated at low cost into new tatami mats with the same vivid color as new ones and with excellent light resistance, durability, and water resistance.

(3) Examples Hereinafter, the present invention will be explained with reference to examples.

The unchanging color rush of the first invention is obtained by drying the cut grass in the sun outdoors without dyeing it with mud, or by drying it using a normal hot air dryer, and then adding the dried grass that has been dried to a pigment resin solution. Dip and dye.

As the pigment resin solution, a volume of any pigment such as a green pigment (chromium green, chromium oxide, etc.), a blue pigment (dark blue, ultramarine, etc.), a purple pigment (manganese cobalt), etc. is added to an acrylic solvent or a vinyl acetate solvent. Add about 20% of the mixture and mix and stir, then add about 5% of the volume of urethane resin to fix the pigment, about 3% of the volume of a diamine waterproofing agent as a water-resistance enhancer, and a small amount of fragrance, etc. It is added and mixed.

The prepared pigment resin solution is stored in a tank, and the dried straw grass is immersed in the pigment resin solution in the tank, then placed in a drying room, heated at a temperature of 130 to 150°C for 10 to 30 minutes, and dried. This is to obtain a rush that does not change color. Note that when a far-infrared ray radiator is used for drying, the drying time is shortened to 3 to 10 minutes.

Pigments dissolve smoothly in the acrylic solvents and vinyl acetate solvents, and the added urethane resin acts as a binder that firmly adheres the pigments to the surface of the rush, so there is no possibility of the pigments peeling off or discoloring. There's nothing to do. In addition, a waterproofing agent that acts as a water-resistance enhancer penetrates into the rush and strengthens its water resistance, and the pigment-based colors are more vivid than regular dyes, and since pigments are cheaper than dyes, dyeing costs are reduced. You can save money.

Therefore, the above-mentioned colorless rush grass does not have any dyed soil attached to it, so there is no dust pollution when weaving the tatami surface, the color is vivid, sunburn and discoloration can be suppressed as much as possible, and it has good light resistance, durability, water resistance, etc. It is excellent in coloring, and when used as a coloring rush in a florist's shop, the color is vivid, there is no dust pollution, discoloration, etc., and the quality can be improved.

The ratio of the pigment, urethane resin, and water resistance enhancer to be mixed in the acrylic solvent or vinyl acetate solvent as the pigment resin solution is not limited to the above examples, and may be changed as appropriate. A urethane resin solvent in which a urethane resin is dissolved may also be used.

Next, the unchanging color tatami surface of the second invention can be obtained by drying the cut grass in the sun outdoors without dyeing it with mud, or
Dry using a normal hot air dryer, weave a tatami cover with the dried straw, and dye the woven tatami cover with the same pigment resin solution as in the first invention, or spray the pigment resin solution, and then dry it. Similarly indoors 130 to 1
A colorless tatami surface is obtained by heating and drying at a temperature of 50° C. for 10 to 30 minutes. Also in this drying process, if a far infrared ray radiator is used for the drying process, the drying time can be shortened to about 3 to 10 minutes.

Even on the unchanging tatami surface, there is no dyed soil attached, so there is no dust pollution and the health of workers can be improved.

In addition, the urethane resin fixes the pigment on the surface of each strawberry fiber of the tatami surface by dipping it into a pigment resin solution or spraying it, and then heating it, resulting in vivid colors and excellent light resistance and durability. This will result in a colorless tatami surface.

Furthermore, in the method for recycling old tatami according to the third invention, the same pigment resin solution as in the first and second inventions is sprayed on the surface of the old tatami, and the spraying is performed by emitting far-infrared rays onto the surface using a far-infrared radiator. This method heats and dries the tatami for 3 to 10 minutes, and the discolored surface of the tatami is colored in a fresh color, making it possible to inexpensively regenerate old tatami to look like new without having to replace the tatami. Become. In addition, after spraying the pigment resin solution, the entire old tatami mat may be placed in a drying room and dried for 10 to 30 minutes at a temperature of 130 to 150°C. In this case, the tatami floor can also be sterilized. Become.

■Effects of the 9 inventions As explained above, the unchanging color rush of the first invention is not dyed with mud, so there is no dyed soil attached when it is dried, and this rush can be used to weave tatami mats and 5 flower gardens. Dust pollution can be prevented by preventing dust from floating during the process.

In addition, by soaking and dyeing dried rush grass in a pigment resin solution in which pigments are dissolved and urethane resin and a water-resistance enhancer are added, and then heated and dried, the pigments attached to the surface of the rush plants are fixed with the urethane resin, and the pigments are The color is vivid without peeling, and it has excellent light resistance and durability.The water resistance is also improved by the water resistance strengthening agent, and the dyeing cost is low. This results in improved performance.

Next, in the non-changeable tatami mat surface of the second invention, since the strawberry is not dyed with mud, no dust pollution is generated during the work process or when making tatami mats using this non-changeable tatami mat surface. In addition, unchanging tatami mats have vivid colors, excellent light resistance, durability, water resistance, etc., and improve quality.

Furthermore, in the method for recycling old tatami mats of the third invention, by spraying the pigment resin solution on the tatami mat surface of a discolored tatami mat to color it in the same color as a new tatami mat, the tatami surface can be recycled at low cost without having to replace the tatami mat surface. You can save money by recycling old tatami mats.

Procedural amendment (voluntary) δ/23/1991 1, Indication of the case 1990 Patent Application No. 147563 2, Name of the invention Unchangeable color strawberry without using dyed soil, Unchangeable color tatami surface without using dyed soil, and How to regenerate old tatami mats 3, Person making the amendment Name of the person involved in the case: Eiji

Claims (1)

[Scope of Claims] 1. A pigment resin obtained by dissolving a pigment that develops a desired color in a solvent and adding a urethane resin and a water-resistance enhancer to dry grass that is obtained by drying cut grass without dyeing it with mud. A constant-color strawberry that does not use dyed soil, which is made by dyeing the rush in a solution, then heating and drying it. 2. The tatami surface is woven from dried straw grass that has been dried without dyeing the cut grass, and the pigment resin solution prepared by dissolving the pigment that develops the desired color in a solvent and adding the urethane resin and water resistance enhancer is added to the above pigment resin solution. This unchanging color tatami surface, which does not use dyed soil, is obtained by dyeing the tatami surface, or by spraying the pigment resin solution on the tatami surface, and then heating and drying the tatami surface. 3. A pigment resin solution prepared by dissolving a pigment that develops a desired color in a solvent and adding urethane resin and a water-resistance enhancer is sprayed on the tatami facing part of old tatami, and then the tatami facing part is heated and dried. How to recycle old tatami.