JP3442910B2 - Thermoplastic material for concrete color cast - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to medical products, arts,
The present invention relates to a concrete colored thermoplastic material for mold making, which can perform suitable coloring and molding at the same time for use in amusement equipment, construction, civil engineering and the like.

[0002]

2. Description of the Related Art Conventionally, for coloring concrete materials, a method of coating the surface with a paint after concrete molding, a method of mixing a pigment with a concrete base material, and a method of soaking a permeable coloring agent from a concrete form to color the surface A mold transfer type coloring method and the like have been used.

Of these, the surface coating method requires pretreatment for improving the adhesion of the paint, the scaffolding of the building cannot be removed until the painting is completed, and the paint is scattered around because it is spray painting. There is a problem that if the resin component is increased in the paint in order to improve the weather resistance, the finished surface will have an unnatural gloss. In addition, in the method of mixing the pigment in the concrete base material, a large amount of the pigment must be mixed in the concrete base material in order to obtain an arbitrary color tone, which increases the cost, and the pigment influences the strength of the concrete. In addition to the drawback that it causes, there is a problem that the pigment adheres to the equipment used in the concrete manufacturing process to change the color tone and a washing operation is required before using normal concrete, which requires a lot of labor.

In order to solve these problems, a mold transfer type coloring method has been proposed in recent years. In this method, a permeable colorant is applied in advance in a mold, concrete is poured into the mold, and molding and surface coloring are performed simultaneously. For example, JP-A-6-92757 discloses a method of coloring a concrete surface by forming a thin layer of a mixture of a specific polyethylene oxide and a colorant on the surface of a base material such as a mold.

However, these molds require a colored layer to be formed off-site in advance, it is difficult to form a uniform colored layer on a mold having irregularities, the cost is high, and it is disposable. However, there was a problem that it could not be recycled.

On the other hand, conventionally, as a molding material for copying and molding a solid surface having unevenness, (1) it has a viscosity as low as possible at the time of molding and good shape conformability to a master, (2) ) It was an essential condition that the material was sufficiently reinforced before use (generally at room temperature) after solidification. Materials such as silicone rubber and urethane are generally used as materials satisfying these conditions.

In recent years, from the viewpoint of environmental destruction, the recyclability of industrial waste has become an important issue in molding materials. However, among these materials, since silicone rubber and urethane are reactive thermoplastic materials, recyclability could hardly be expected. In addition, although it is possible to apply other commercially available thermoplastic materials, these materials have recyclability, but their melting point is considerably high, and since they have extremely high viscosity even in a molten state, they have shape conformability. Since it is scarce and the raw material cost is high, it is generally unsuitable as a material for colorant molding.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and it is possible to accurately reproduce even a fine uneven pattern, and to easily and safely color the concrete surface to be molded. It is an object of the present invention to provide a thermoplastic material for concrete colored molding which is capable of being recycled and is also recyclable.

[0009]

The thermoplastic material for concrete colored molding (hereinafter, appropriately referred to as colored molding material) of the present invention is a solid material or a solid surface is copied to form a concrete material, A colored molding material for coloring the surface of a concrete material formed by copy molding, wherein the material is a high molecular weight organic material, a water-soluble material having a solubility parameter of 9 to 24, and a colorant as main components. A polymer blend material having a content ratio of less than the content ratio of a water-soluble material having a solubility parameter of 9 to 24, wherein the polymer organic material has a three-dimensional continuous network skeleton structure is used. It is characterized by being configured.

Further, in the thermoplastic material for concrete coloring according to the present invention, the polymer blend material comprises a polymer material having a number average molecular weight of 20,000 or more, a water-soluble material having a solubility parameter of 9 to 24, and a colorant. In addition, a low molecular weight material having a number average molecular weight of 20,000 or less is included, and a solubility parameter of the high molecular weight material and the low molecular weight material is 3.0 or less.

The solubility parameter is 9-24.
The water-soluble material is preferably polyethylene oxide or polyethylene glycol represented by the following formula.

[0012] HO- in _{(CH 2 CH 2 O) n} -CH 2 CH 2 OH formula, n represents an integer of from 0 to 500,000.

At present, colored patterning materials are required to have good shape following properties, sufficiently reinforced materials, and recyclability. However, in conventional silicone rubber and urethane, since these materials are reactive thermoplastic materials, recyclability could hardly be expected, but according to the colored molding thermoplastic material of the present invention,
(1) Since it is a melt having a low viscosity at a relatively low temperature (up to 100 ° C) and is a thermoplastic material that is in a solid state at room temperature, it can be easily poured into a mold and has good conformability to a master. Yes, (2) because it softens at 50 to 70 ° C, the shape of the prototype can be accurately reproduced by pressing and cooling the prototype in a temperature range above this temperature, and (3) the polymer organic material is three-dimensionally continuous. Since it has a reticulated skeleton structure, it has good releasability due to the liquid and colorant present inside, and the surface can be colored uniformly, and (4) the surface shape of the molding target is not damaged during coloring. (5) Since it is a thermoplastic material, it can be used repeatedly (recycled).

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in detail below.

In the present invention, the high molecular weight organic material has a number average molecular weight of 20,000 or more, particularly 30,0.
00 or more, especially 40,000 or more of thermoplastic polymer organic materials are preferable, and for example, various thermoplastic elastomers such as styrene (butadiene styrene, isoprene styrene, etc.), ester, amide, urethane, etc., and Hydrogenated or other modified products thereof, styrene type, ABS type, olefin type (ethylene type, propylene type, ethylene propylene type, ethylene styrene type, propylene styrene type, etc.), vinyl chloride type, acrylic acid ester type (acrylic acid Methyl type, etc., Methacrylic acid ester type (methyl methacrylate type, etc.) Carbonate type, acetal type, nylon type, halogenated polyether type (chlorinated polyether type, etc.), halogenated olefin type (tetrafluoroethylene type, Fluorinated-ethylene chloride type, fluorinated ethylene Propylene type), cellulose type (acetyl cellulose type, ethyl cellulose type, etc.), vinylidene type, vinyl butyral type, alkylene oxide type (propylene oxide type, etc.) and other thermoplastic resins, and rubber modified products of these resins, etc. To be

As a concrete thermoplastic polymer material, it is particularly preferable to use a material having a portion which easily forms a hard block such as a crystal structure or an agglomerate structure and a soft block such as an amorphous structure together. Specifically, the following are mentioned.

A block copolymer of polyethylene and an ethylene / butylene-styrene random copolymer obtained by hydrogenating a block copolymer of polybutadiene and a butadiene-styrene random copolymer.

A block copolymer of polybutadiene and polystyrene, or a block copolymer of polyethylene / butylene and polystyrene obtained by hydrogenating a block copolymer of polystyrene with polybutadiene or an ethylene-butadiene random copolymer. .

An ethylene / butylene copolymer and a block copolymer in which crystalline ethylene is linked to one end or both ends thereof.

Ethylene-propylene rubber. Of these, a block copolymer of polyethylene and an ethylene-styrene random copolymer is particularly preferable.

These various thermoplastic polymer organic materials are mainly used alone, but two or more kinds may be blended and used.

As the water-soluble material having a solubility parameter of 9 to 24, specifically, cyclohexane,
Examples thereof include toluene, tetrahydrofuran, ethyl alcohol, polyethylene glycol, polyethylene oxide (degree of polymerization: about 10,000 to several hundreds of thousands). The solubility parameter, which is a standard for selecting the water-soluble material, is generally known as the SP value, and here, the one calculated by the Fedors method from the chemical structure of the substance is used. The solubility parameter used in the present invention is 9 to 24
Among the water-soluble materials, a water-soluble polymer material containing -OH or -COOH in its molecule is preferable, and for example, polyvinyl alcohol or a compound represented by the following formula is preferable.

[0023] HO- in _{(CH 2 CH 2 O) n} -CH 2 CH 2 OH formula, n represents an integer of from 0 to 500,000.

This formula includes polyethylene glycol, polyethylene oxide (degree of polymerization: about 10,000 to several hundreds of thousands) and the like.

The colorant used in the present invention is not particularly limited and can be arbitrarily selected depending on the material of the material to be molded and colored. For example, various organic dyes, azo-based, anthraquinone-based and phthalocyanine-based organic dyes are used. Pigments, natural or synthetic inorganic pigments, etc. can be used. From the use of the coloring agent for concrete, those having excellent weather fastness are preferably used. Among them, pigments are preferable because they can be uniformly dispersed in the polymer blend material and have high safety and fastness, and inorganic pigments are more preferable from the viewpoint of coloring effect. Examples of the inorganic pigments include red iron oxide, red jelly, titanium white, chrome yellow, and carbon black.

The amount of the colorant added depends on the material of the material to be colored and the desired coloring concentration, but it is usually preferable to add about 10 to 200 parts by weight to the polymer blend material.

In the present invention, it is preferable to use a low molecular weight material having a number average molecular weight of less than 20,000 together with the high molecular weight blend material from the viewpoint of the moldability of the colored molding material. Preferably has a viscosity at 100 ° C. of 5 × 10 ⁵ centipoise or less, particularly 1 × 10 ⁵ centipoise or less. From the viewpoint of molecular weight, the low-molecular material has a number average molecular weight of less than 20,000, particularly It is preferably less than 10,000, particularly preferably less than 5,000. As such a low molecular weight material,
Usually, a liquid or liquid material at room temperature is preferably used. Further, both hydrophilic and hydrophobic low molecular weight materials can be used. The low molecular weight material is not particularly limited, but the following materials are suitable.

Softening agent: A softening agent for various rubbers or resins such as mineral oils, vegetable oils, and synthetics. Examples of mineral oil-based oils include process oils such as aromatic oils, naphthene oils, and paraffin oils. Examples of vegetable oils include castor oil, cottonseed oil, linseed oil, rapeseed oil, soybean oil, palm oil, coconut oil, peanut oil, wood wax, pine oil, olive oil and the like.

Plasticizer: Various ester type plasticizers such as phthalic acid ester, phthalic acid mixed group ester, aliphatic dibasic acid ester, glycol ester, fatty acid ester, phosphoric acid ester, stearic acid ester, epoxy type plasticizer, etc. Plasticizers for plastics or phthalates, adipates, sebacates, phosphates,
NBR plasticizers such as polyether and polyester.

Tackifier: Various tackifiers such as coumarone resin, coumarone-indene resin, phenol terpene resin, petroleum hydrocarbon and rosin derivative (tackifier).

Oligomer: Crown ether, fluorine-containing oligomer, polyisobutylene, xylene resin, chlorinated rubber, polyethylene wax, petroleum resin, rosin ester rubber, polyalkylene glycol diacrylate,
Liquid rubber (polybutadiene, styrene-butadiene rubber, butadiene-acrylonitrile rubber, polychloropolene, etc.), silicone-based oligomers, various oligomers such as poly-α-olefins.

Lubricants: Hydrocarbon lubricants such as paraffin and wax, fatty acid lubricants such as higher fatty acids and oxyfatty acids, fatty acid amide lubricants such as fatty acid amides and alkylenebisfatty acid amides, fatty acid lower alcohol esters, fatty acid polyhydric alcohol esters. , Ester lubricants such as fatty acid polyglycol ester, fatty alcohol,
Various lubricants such as alcohol-based lubricants such as polyhydric alcohols, polyglycols and polyglycerols, metal soaps, mixed lubricants.

In addition, latex, emulsion, liquid crystal, bituminous composition, clay, natural starch, sugar, inorganic silicon oil, phosphazene and the like are also suitable as the low molecular weight material. Further, hydrocarbon-based, halogenated hydrocarbon-based, alcohol-based, phenol-based, ether-based, acetal-based, ketone-based, fatty acid-based, ester-based, nitrogen compound-based, sulfur compound-based organic solvents: or soil modification Agents, petroleum, water, aqueous solutions, etc. are also used.

These low molecular weight materials may be used alone or in combination of two or more. In the present invention, in order to obtain a polymer blend material containing a large amount of a low molecular weight material with a large amount of a low molecular weight material and a high molecular weight organic material, the solubility parameter value δ of each of the low molecular weight material and the high molecular weight organic material used The difference of (ΔE / V) ^1/2 (ΔE = molar evaporation energy, V = molar volume) is 3.0 or less, preferably 2.
It is preferable to select both materials so as to be 5 or less.
If this difference exceeds 3.0, from the viewpoint of the compatibility of both materials, it is difficult to retain a large amount of low molecular weight materials, which is an obstacle to lowering the elasticity of the obtained polymer blend material, and also causes bleeding of the low molecular weight materials. It is not preferable because it tends to occur.

If necessary, the polymer blend material according to the present invention may further contain the following fillers. Namely clay, diatomaceous earth, silica, talc,
Flaky inorganic fillers such as barium sulfate, calcium carbonate, magnesium carbonate, metal oxides, mica, graphite, aluminum hydroxide, various metal powders, wood chips, glass powders, ceramic powders, granular or granular polymer particles Or powdered solid filler, various other natural or artificial short fibers, superfibers (for example, straws, hairs, glass fibers, metal fibers, other various polymer fibers, etc.) can be blended.

Further, it is possible to reduce the weight by blending a hollow filler, for example, an inorganic hollow filler such as a glass balloon or a silica balloon, or an organic hollow filler made of polyvinylidene fluoride or a polyvinylidene fluoride copolymer. It is also possible to mix various foaming agents in order to improve various physical properties such as weight reduction.
It is also possible to mechanically mix the gas at the time of mixing.

In order to have such characteristics, the three-dimensional continuous reticulated skeleton structure formed of the polymer organic material constituting the polymer blend material has an average skeleton diameter of 50 μm.
m or less, preferably 30 μm or less, the average diameter of cells (mesh) is 500 μm or less, preferably 300 μm or less, and the volume fraction of the polymer organic material is [volume of polymer organic material / (polymer organic material Volume + volume of low molecular weight material)]
When defined as × 100 (%), it is desirable that the volume fraction of the polymer organic material be 30% or less, and particularly 25% or less.

Although the coloring mechanism of the present invention is not clear, a coloring agent dispersed in a water-soluble material having a solubility parameter of 9 to 24, which is retained in the three-dimensional continuous network skeleton structure, is used as a coloring pattern-taking material. It is considered that this is because the surface of the colored material to be molded moves to the surface of the concrete to be colored, which is in close contact with the concrete.

In order to promote this permeability, it is preferable to use the above-mentioned polyethylene glycol or polyethylene oxide as the water-soluble material having a solubility parameter of 9 to 24, and similarly, the solubility parameter is 9
It is also preferable to add a surfactant to the water-soluble material of -24.

The surfactant used here is not particularly limited, but anionic surfactants, cationic surfactants, nonionic surfactants and nonionic surfactants can be used as long as they have a function of promoting the penetration of the colorant into the concrete base material. Both of the amphoteric surfactant and the amphoteric surfactant are preferably used. The surfactant can be added in an amount of about 0 to 200 parts by weight with respect to the polymer blend material.

The polymer blend material used in the present invention has a predetermined amount of polymer material and a solubility parameter of 9 to 2
No. 4 is obtained by mixing the water-soluble material, the colorant, and, if necessary, the low molecular weight material and other compounding agents under mixing conditions capable of forming a three-dimensional continuous network skeleton structure of the polymeric material. In this case, in addition to having a uniform three-dimensional continuous network skeleton structure of a polymer material, there is little bleeding of a water-soluble material having a solubility parameter of 9 to 24 or a low molecular weight material added as desired, and In order to obtain a polymer blend material satisfying the above-mentioned characteristics, it is preferable to use a high shear type mixer as the mixer, and particularly, a high shear force and a high shear rate between the fixed wall and the rotating rotor are used. Assuming that the distance (clearance) between the fixed wall and the rotating part (rotor) is t (m) and the rotor peripheral speed is v (m / sec), the shearing speed V = v / (Sec ^-1) and when ^{defined, V ≧ 5.0 × 10 2 (} sec -1) preferably ^{V ≧ 1.0 × 10 3 (sec} -1) , more preferably V ≧ 2.5 × 10 ³ ( sec ⁻¹ ) More preferably, it is advantageous to use a high shear type special mixer satisfying V ≧ 5.0 × 10 ³ (sec ⁻¹ ).

The polymer blend material according to the present invention is not particularly limited to a usual bulk shape, gel shape, foam shape, etc., but is in a gel state, particularly a three-dimensional continuous uniform mesh shape made of a thermoplastic polymer material. Those in a gel state having a skeletal structure are particularly effective for the present invention.

There is no particular limitation on concrete as a material to be colored to which the present invention can be applied. For example, concrete having a special composition such as a water-permeable material, mortar material, and the like can be used in various compositions. It can be used for concrete. Further, it can also be applied to an inorganic material such as gypsum that can be molded under the same conditions as concrete.

The thermoplastic material for colored molding according to the present invention is not particularly limited, but is, for example, one used as a mold (see FIGS. 1A to 1C) and one used as a solid support. (See FIGS. 2A to 2C).

When the colored thermoplastic material for molding is used as a colored mold, it can be used for medical purposes (fixing materials such as artificial legs, artificial limbs, and casts), works of art (engraving, It can be used as a colored mold for paintings, foreheads, etc. and play equipment (general toys, natural objects, etc.). On the other hand, when it is used as a solid support, it can be used as a colored mold for construction (decoration panels for interior and exterior of buildings, floors, etc.) and civil engineering (road pavement, decoration panels for wall surfaces, etc.).

Furthermore, when the colored molding thermoplastic material of the present invention is used as a solid support and an injecting material, in addition to coloring with the coloring agent in the colored molding thermoplastic material, It is also possible to harmonize with the structure by inserting different materials such as cloth, plastic and the like.

A specific example of the use of the colored molding thermoplastic material of the present invention will be described below. (1) One Example of Use as Mold Form FIG. 1 is a schematic view showing an example of using the colored thermoplastic molding material of the present invention as a mold for concrete.
In the process of (A), the colored molding thermoplastic material 10 of the present invention is welded and poured into a mold 14 in which the master 12 is arranged at a temperature of about 100 ° C., or the colored molding thermoplastic material 10 is poured. Prototype 12 softens at temperatures above 50 ° C
And press it to cool to room temperature. Then, the prototype 12 is removed to obtain the desired mold 16. next,
In the process of (B), concrete 18 which is the material to be molded is cast into the obtained mold 16 and solidified. Finally, in the process of (C), the heat for coloring mold removal of the present invention is used. When the mold 16 formed by injecting the plastic material 12 is removed, the surface is colored, and a concrete molded body 20 in which the shape of the master mold 12 is faithfully reproduced is obtained.

According to this method, the coloring agent dispersed in the water-soluble component permeates the surface of the concrete 18 containing water from the interface between the colored molding thermoplastic material 12 and the concrete 18 to form the mold. The concrete surface can be uniformly colored without applying a coloring agent. (2) Example of Use as Solid Support FIG. 2 is a schematic view showing an example of using the colored thermoplastic molding material 10 of the present invention as a solid support. (A)
In the above process, the solid 22 to be fixed to the colored molding thermoplastic material 10 of the present invention in the molten state or the softened state is used.
(For example, a solid having an arbitrary shape made of an organic material such as plastic or rubber or an inorganic material such as cement or gypsum) is pressed and cooled. Next, in the process (B), concrete 18, which is the material to be molded, is poured into the side facing the colored molding thermoplastic material of the present invention. Finally,
In the process (C), the surface is colored by removing the thermoplastic material 10 for colorant molding of the present invention, and the solid 2
2 is fixed to the surface, and a decorative panel 24 made of concrete having an uneven pattern is formed.

[0049]

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. (Example 1) (1) As a raw material for producing a thermoplastic material for colored patterning, 10.0 wt% of thermoplastic urethane (manufactured by Dainippon Ink and Chemicals, Inc .: SP value 10.0) and polyethylene glycol (degree of polymerization: 600, manufactured by Sanyo Kasei Co., Ltd .: SP value 10.17) 90% by weight are mixed well, and this mixture 1
50 parts by weight of pigment red iron oxide (manufactured by Sanyo Dye Co., Ltd.) was added to 00 parts by weight, and the number of revolutions was 4 using a high shear type special mixer ("TK Auto Homo Mixer" manufactured by Tokushu Kika Kogyo Co., Ltd.).
Mixing was carried out under the mixing conditions of 000 rpm, mixing temperature of 160 ° C. and mixing time of 1 hour to obtain a polymer blend material having a uniform appearance. In addition, when a section of this polymer blend material was cut out and confirmed by an optical microscope, a three-dimensional continuous reticulated skeleton structure (average skeleton diameter 3 μm, average cell diameter 20 μm) made of thermoplastic polymer organic material was formed. Was confirmed. In addition, JIS of this polymer blend material
The -A hardness was 20 ° and the permanent compression strain was 50%. (2) Coloring and molding of the molding target.
Was melted by heating, and poured into a mold in which an original mold for pattern making was placed, and cooled and cured to prepare a mold.

Concrete, which is the material to be molded, was poured into the mold and allowed to harden, and then the mold and the mold made of the colored thermoplastic material for molding were removed to obtain a concrete molded product.

It was confirmed that the concrete molded product faithfully reproduced the original model in detail and that the surface of the molded product was uniformly colored with red vermillion. (Example 2) (1) Manufacturing method of thermoplastic material for colored patterning Polyethylene oxide (polymerization degree: 10,000, manufactured by Sumitomo Seika: SP) as a water-soluble material having a solubility parameter of 9 to 24 instead of polyethylene glycol (Value 9.45)
A colored thermoplastic material for pattern making was obtained in the same manner as in Example 1 except that 90% by weight was used as a colorant and 50 parts by weight of a dye (a sulfur dye, manufactured by Asahi Chemical Co., Ltd.). When a section of this polymer blend material was cut out and confirmed by an optical microscope, a three-dimensional continuous reticulated skeleton structure (average skeleton diameter 4 μm, average cell diameter 25 μm) made of thermoplastic polymer organic material was formed. It was confirmed. Further, this polymer blend material has a JIS-A hardness of 25 ° and a permanent compression strain of 50.
%Met. (2) Coloring and molding of the molding target.
It was heated and melted at, poured into a mold in which an original mold for pattern making was placed, and cooled and cured to prepare a mold.

Then, a concrete molded product was obtained in the same manner as in Example 1. It was confirmed that the concrete molded product faithfully reproduced the prototype in detail and that the surface of the molded product was uniformly colored brown.

As is clear from each of the above-mentioned Examples, the molding using the thermoplastic material for concrete coloring according to the present invention enables the molding to be carried out without the step of applying the coloring agent by spraying or brushing. At the same time, the surface of the concrete molding object can be uniformly colored, which is safe and
It also has an excellent economic effect.

The colored molding thermoplastic material of the present invention taken out from the mold can be reused by heating and melting.

[0055]

EFFECTS OF THE INVENTION As described above, the thermoplastic material for colorant molding according to the present invention is (1) at a relatively low temperature (-100 ° C).
Since it is a low-viscosity melt and is a thermoplastic material that becomes a solid state at room temperature, it can be easily poured into the mold and has good conformability to the original mold, and (2) is softened at 50 to 70 ° C. Therefore, the shape of the prototype can be accurately reproduced by pressing and cooling the prototype in a temperature range above this temperature. (3) Since the polymer organic material has a three-dimensional continuous network skeleton structure, it exists inside this. With the liquid and the coloring agent to be applied, the mold releasability is good, the surface can be colored uniformly, (4) the surface shape of the molding target is not impaired during coloring, and (5) since it is a thermoplastic material, It has an excellent effect that it can be used repeatedly (recycled).

[Brief description of drawings]

FIG. 1A and FIG. 1B are schematic views showing an example in which the colored mold-taking thermoplastic material of the present invention is used as a concrete mold.

2 (A) to (C) are schematic views showing an example in which the colored thermoplastic resin for mold making of the present invention is used as a solid support.

[Explanation of symbols]

10 Polymer blend material (colored molding thermoplastic material) 12 prototype 14 Formwork 18 Material to be molded and colored (concrete)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ identification code FI C04B 41/63 C04B 41/63 C08K 5/00 C08K 5/00 (58) Fields investigated (Int.Cl. ⁷ , DB name) C08L 1/00-101/16 C08K 3/00-13/08 C04B 41/63 B05D 7/00 B28B 1/14 B28B 7/34-7/36

Claims (6)

(57) [Claims] Claim: What is claimed is: 1. A thermoplastic material for concrete-type molding for coloring a concrete material obtained by copying a solid shape or a solid surface to form a concrete material, and coloring the surface of the concrete material obtained by copy molding. Content of the water-soluble material in which the plastic material is a polymer organic material, a water-soluble material having a solubility parameter of 9 to 24 and a colorant as main components, and the content of the polymer organic material is a solubility parameter of 9 to 24 A thermoplastic material for concrete coloring, characterized in that the polymer organic material has a three-dimensional continuous network skeleton structure. 2. The thermoplastic material for concrete colored molding according to claim 1, wherein the polymer blend material further contains a low molecular weight material having a number average molecular weight of less than 20,000. 3. The number average molecular weight of the polymer material is 20,0.
3. The thermoplastic material for concrete colored molding according to claim 1 or 2, wherein the difference in solubility parameter between the high molecular weight material and the low molecular weight material is 3.0 or less and 3.0 or less. 4. The thermoplastic material for concrete molding according to claim 1, wherein the polymer blend material further contains a surfactant. 5. The thermoplastic material for concrete molding according to claim 1, wherein the water-soluble material having a solubility parameter of 9 to 24 is a compound represented by the following formula. During _{HO- (CH 2 CH 2 O)} n -CH 2 CH 2 OH formula, n represents an integer of from 0 to 500,000. 6. The thermoplastic material for concrete colored molding according to claim 1, wherein the colorant is an inorganic pigment.