JPH04243985A - Production of colored expanded ceramic building material - Google Patents
Production of colored expanded ceramic building materialInfo
- Publication number
- JPH04243985A JPH04243985A JP847091A JP847091A JPH04243985A JP H04243985 A JPH04243985 A JP H04243985A JP 847091 A JP847091 A JP 847091A JP 847091 A JP847091 A JP 847091A JP H04243985 A JPH04243985 A JP H04243985A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- raw material
- spray
- ceramic raw
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 29
- 239000004566 building material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000049 pigment Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 238000010304 firing Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 description 17
- 239000010433 feldspar Substances 0.000 description 16
- 239000004927 clay Substances 0.000 description 13
- 238000005187 foaming Methods 0.000 description 12
- 239000011148 porous material Substances 0.000 description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 8
- 229910010271 silicon carbide Inorganic materials 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910000423 chromium oxide Inorganic materials 0.000 description 4
- LPXQRXLUHJKZIE-UHFFFAOYSA-N 8-azaguanine Chemical compound NC1=NC(O)=C2NN=NC2=N1 LPXQRXLUHJKZIE-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241000975357 Salangichthys microdon Species 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000005335 volcanic glass Substances 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は顔料により着色された着
色発泡セラミック建材の製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing colored foamed ceramic building materials colored with pigments.
【０００２】0002
【従来の技術】セラミック建材例えばタイルや床材、屋
根材等の製造法として、各種天然又は人工の鉱物などの
原料を湿式粉砕し、次いでこのスラリーをスプレードラ
イヤを用いて乾燥することによりスプレー乾燥粉を製造
し、このスプレー乾燥粉を乾式プレス成形し、焼成する
方法がある。[Prior Art] As a manufacturing method for ceramic building materials such as tiles, flooring materials, roofing materials, etc., raw materials such as various natural or artificial minerals are wet-pulverized, and then this slurry is dried by spray drying using a spray dryer. There is a method of producing powder, dry press-molding this spray-dried powder, and firing it.
【０００３】このスプレー乾燥粉は、粒度が揃った球状
のものであるため、乾式プレスする際に原料粉体が金型
の隅々まで充填され易いという特徴を有する。[0003] Since this spray-dried powder is spherical with uniform particle size, it has the characteristic that it is easy to fill every corner of the mold with the raw material powder during dry pressing.
【０００４】なお、上記原料に顔料を加えれば、着色し
たセラミック建材が製造される。また、上記原料が発泡
性のもの（例えば膨張頁岩や膨張粘土を含有していたり
、炭化珪素等の発泡材を添加したもの）であると、発泡
したセラミック建材が製造される。[0004] If pigments are added to the above raw materials, colored ceramic building materials can be produced. Further, when the above-mentioned raw material is foamable (for example, contains expanded shale or expanded clay, or is added with a foaming material such as silicon carbide), a foamed ceramic building material can be produced.
【０００５】[0005]
【発明が解決しようとする課題】上記従来法によって製
造された着色発泡セラミック建材においては、着色が均
一なモノトーンのものであるため、のっぺりとした変化
に乏しい外観になるという問題があった。[Problems to be Solved by the Invention] The colored foamed ceramic building materials produced by the above-mentioned conventional method have a problem in that the coloring is uniform and monotone, resulting in a flat appearance with little variation.
【０００６】[0006]
【課題を解決するための手段】本発明の着色発泡セラミ
ック建材の製造法は、非発泡性セラミック原料と顔料を
含んだ第１のスラリーのスプレー乾燥粉と、発泡性セラ
ミック原料と前記第１のスラリー中の顔料と同色又は異
色の顔料とを含んだ第２のスラリーのスプレー乾燥粉と
を混合した後、乾式プレス成形し、焼成することを特徴
とするものである。[Means for Solving the Problems] The method for producing a colored foamed ceramic building material of the present invention includes spray-dried powder of a first slurry containing a non-foaming ceramic raw material and a pigment, a foamed ceramic raw material and the first slurry, The method is characterized by mixing the pigment in the slurry with a spray-dried powder of a second slurry containing a pigment of the same color or a different color, followed by dry press molding and firing.
【０００７】以下に本発明を詳細に説明する。本発明に
おいて、発泡性セラミック原料としては、粘土、長石及
び発泡成分としての炭化珪素が好適である。即ち、本発
明者が種々研究を行なったところ、粘土４０〜１０重量
部、長石６０〜９０重量部、炭化珪素１重量部以下を混
合及び成形し、１２００〜１３００℃で焼成したものは
、閉気孔（独立気孔、クローズドポア）を有した吸水性
が殆どゼロの軽量体であることを見出した。この場合、
粘土としては非発泡性の粘土が用いられる。長石は特に
限定されることなく、各種のものを用いることができる
。炭化珪素は例えば粒径１０μｍ以下の微粉が用いられ
る。粘土及び長石の配合量は、粘土が４０〜１０重量部
、長石が６０〜９０重量部が適当である。長石の割合が
これよりも少ないと、焼結体の気孔以外の部分の緻密さ
が不足し、焼結体の吸水率が高くなる。逆に、長石が上
記範囲よりも多いと、焼結温度が低くなり、焼結体の寸
法精度が悪くなる。The present invention will be explained in detail below. In the present invention, clay, feldspar, and silicon carbide as a foaming component are suitable as foamable ceramic raw materials. That is, the present inventor conducted various studies and found that a mixture of 40 to 10 parts by weight of clay, 60 to 90 parts by weight of feldspar, and 1 part by weight or less of silicon carbide, and fired at 1,200 to 1,300°C, is a closed product. It has been found that the material has pores (independent pores, closed pores) and is a lightweight body with almost zero water absorption. in this case,
Non-expandable clay is used as the clay. The feldspar is not particularly limited, and various types can be used. For example, fine powder of silicon carbide with a particle size of 10 μm or less is used. Appropriate blending amounts of clay and feldspar are 40 to 10 parts by weight for clay and 60 to 90 parts by weight for feldspar. If the proportion of feldspar is less than this, the density of the sintered body other than the pores will be insufficient, and the water absorption rate of the sintered body will be high. On the other hand, if the amount of feldspar is more than the above range, the sintering temperature will be low and the dimensional accuracy of the sintered body will be poor.
【０００８】ところで、炭化珪素は、１２００〜１３０
０℃程度で分解してガスを発生させ、このガスにより焼
結体に気孔が形成される。このため、本発明における焼
成温度は１２００〜１３００℃とするのが好ましい。即
ち、焼成温度が１２００℃よりも低いと、素地に十分な
粘性がないため気孔を形成できない。逆に、焼成温度が
１３００℃よりも高いと、焼成素地が低粘性となり、形
成された気孔が会合して粗大気孔が形成されるようにな
り焼結体の強度が低下する。By the way, silicon carbide has a molecular weight of 1200 to 130
It decomposes at about 0°C to generate gas, and this gas forms pores in the sintered body. For this reason, the firing temperature in the present invention is preferably 1200 to 1300°C. That is, if the firing temperature is lower than 1200° C., pores cannot be formed because the base material lacks sufficient viscosity. On the other hand, if the firing temperature is higher than 1300° C., the fired base material will have low viscosity, the formed pores will come together to form coarse pores, and the strength of the sintered body will decrease.
【０００９】上記配合及び焼成温度であると、直径が約
２０〜２００μｍ程度の独立気孔を有し、２４時間吸水
率のみならず煮沸吸水率も実質的にゼロである軽量体が
得られる。[0009] With the above formulation and firing temperature, a lightweight body having independent pores with a diameter of about 20 to 200 μm and having not only a 24-hour water absorption rate but also a boiling water absorption rate of substantially zero can be obtained.
【００１０】一方、非発泡性セラミック原料としては、
上記発泡性セラミック原料から炭化珪素を除いた粘土及
び長石の混合物が好適である。もちろん、本発明におい
ては、上記以外の原料例えば高炉スラグや鉱滓、火山ガ
ラス、膨張頁岩、膨張粘土、シラスなどを用いても良い
。On the other hand, as non-foaming ceramic raw materials,
A mixture of clay and feldspar obtained by removing silicon carbide from the above-mentioned foamable ceramic raw material is suitable. Of course, in the present invention, raw materials other than those mentioned above may be used, such as blast furnace slag, mine slag, volcanic glass, expanded shale, expanded clay, and whitebait.
【００１１】顔料としては、酸化コバルト、酸化クロム
、酸化鉄、酸化ニッケルを成分とする市販の練込用顔料
などが好適であるが、その他のものであっても良い。
顔料の配合割合は、スプレー粉に対して１〜５重量％と
するのが好ましい。Suitable pigments include commercially available pigments for kneading containing cobalt oxide, chromium oxide, iron oxide, and nickel oxide, but other pigments may also be used. The blending ratio of the pigment is preferably 1 to 5% by weight based on the spray powder.
【００１２】スプレー粉は、粒径が７００μｍ以下、特
に２００〜５００μｍとなるようにするのが好適である
。本発明においては、このような第１及び第２のスプレ
ー粉を常法に従って混合した後、乾式プレス成形し、焼
成することにより容易に実施することができるが、スプ
レー粉の混合に際しては、非発泡性の第１のスプレー粉
と発泡性の第２のスプレー粉とは、粒子を破壊しない様
に混合し、混合粉体中に非発泡性の第１のスプレー粉と
発泡性の第２のスプレー粉とが均一に存在するようにす
るのが好適である。[0012] The spray powder preferably has a particle size of 700 μm or less, particularly 200 to 500 μm. The present invention can be easily carried out by mixing such first and second spray powders according to a conventional method, followed by dry press molding and baking. However, when mixing the spray powders, it is necessary to The foaming first spray powder and the foaming second spray powder are mixed without destroying the particles, and the non-foaming first spray powder and the foaming second spray powder are mixed in the mixed powder. It is preferable that the spray powder be uniformly present.
【００１３】[0013]
【作用】非発泡性セラミック原料及び顔料（以下、「第
１の顔料」と称する場合がある。）を含む第１のスプレ
ー粉は、焼成しても発泡しない。一方、発泡性セラミッ
ク原料及び顔料（以下、「第２の顔料」と称する場合が
ある。）を含む第２のスプレー粉は焼成により発泡する
。その結果、得られた焼結体の表面部分においては、発
泡性セラミック原料を含む第２のスプレー粉が存在して
いた部分は膨張して引き延され、第２の顔料の濃度（含
有率）が相対的に低くなり、淡色となる。一方、非発泡
性セラミック原料を用いた第１のスプレー粉が存在して
いた部分では発泡が生じないから、第１の顔料の濃度（
含有率）が相対的に高くなり濃色となる。従って、得ら
れる焼結体の表面は、第１の顔料と第２の顔料とが異色
の場合には異なった色の濃淡が、また、第１の顔料と第
２の顔料とが同色の場合には同じはの濃淡が斑状に現わ
れた着色面となり、天然石にも既存の人工石にも見られ
ない特有の深みのある着色面が得られる。[Operation] The first spray powder containing a non-foaming ceramic raw material and a pigment (hereinafter sometimes referred to as "first pigment") does not foam even when fired. On the other hand, the second spray powder containing the foamable ceramic raw material and the pigment (hereinafter sometimes referred to as "second pigment") is foamed by firing. As a result, on the surface of the obtained sintered body, the area where the second spray powder containing the foamable ceramic raw material was present expands and stretches, increasing the concentration (content rate) of the second pigment. becomes relatively low and becomes pale in color. On the other hand, since foaming does not occur in the area where the first spray powder using the non-foaming ceramic raw material was present, the concentration of the first pigment (
content) becomes relatively high, resulting in a dark color. Therefore, the surface of the obtained sintered body has different shades of color when the first pigment and the second pigment are different colors, and when the first pigment and the second pigment are the same color. The colored surface has a mottled appearance of the same shading, resulting in a colored surface with a unique depth not found in natural stone or existing artificial stone.
【００１４】また、焼結体の表面においては、膨張した
部分は外方に向って膨らみ出すことにより隆起し、膨張
しなかった部分は焼き締りにより表面から沈み込もうと
する。この結果、得られた焼結体の表面は微小は凹凸が
混在した独特の表面となる。しかも、この凸部は淡色と
なり、凹部は濃色となるので、表面の凹凸感が強く視覚
されるようになる。Further, on the surface of the sintered body, the expanded portion bulges outward and rises, and the unexpanded portion tends to sink from the surface due to compaction. As a result, the surface of the obtained sintered body has a unique surface with a mixture of minute irregularities. Furthermore, since the convex portions are light-colored and the concave portions are dark-colored, the unevenness of the surface becomes more visually noticeable.
【００１５】[0015]
【実施例】以下に実施例を挙げて本発明をより具体的に
説明する。
実施例１
下記配合物Ｎｏ．１及びＮｏ．２をそれぞれ湿式ボール
ミルで粉砕、混合してスラリーとし、このスラリーをス
プレードライヤで乾燥し、各々平均粒径３５０μｍのス
プレー粉を製造した。
Ｎｏ．１：非発泡性セラミック原料
粘土（川本木節） ３０重量部長石（阿
山長石） ７０重量部顔料（酸化クロム
系） １．０重量部Ｎｏ．２：発泡性セラミック原料
粘土（川本木節） ３
０重量部長石（阿山長石）
７０重量部炭化珪素（平均粒径０．５ μｍ）
０．３重量部顔料（酸化クロム系）
１．０重量部得られた２種類のスプレー粉を容器回
転型混合機で２０分間混合した。この混合粉に少量の水
をスプレーにて加えた後、乾式プレス成形し、２０×２
０×０．８ｃｍの成形体とした。この成形体を乾燥後、
１２５０℃で１時間焼成し、本発明の建材を製造した。[Examples] The present invention will be explained in more detail with reference to Examples below. Example 1 The following formulation No. 1 and no. 2 were ground and mixed in a wet ball mill to form a slurry, and this slurry was dried in a spray dryer to produce spray powders each having an average particle size of 350 μm. No. 1: Non-expandable ceramic raw material clay (Kabushi Kawamoto) 30 parts by weight Feldspar (Azan feldspar) 70 parts by weight Pigment (chromium oxide type) 1.0 parts by weight No. 2: Foaming ceramic raw material clay (Kawamoto Kibushi) 3
0 weight feldspar (Azan feldspar)
70 parts by weight silicon carbide (average particle size 0.5 μm)
0.3 parts by weight pigment (chromium oxide type)
The two types of spray powder obtained at 1.0 parts by weight were mixed for 20 minutes in a container rotating mixer. After adding a small amount of water to this mixed powder by spraying, it was dry press-molded into a 20×2
It was made into a molded body of 0 x 0.8 cm. After drying this molded body,
The building material of the present invention was manufactured by firing at 1250° C. for 1 hour.
【００１６】得られた建材の表面は斑状のグレー色系の
濃淡模様が凹凸模様に応じて混在し、独特の風合いと美
観を有するものであった。[0016] The surface of the obtained building material had a mottled gray shaded pattern mixed in accordance with the uneven pattern, and had a unique texture and aesthetic appearance.
【００１７】実施例２
原料配合を下記Ｎｏ．３及びＮｏ．４としたこと以外は
、実施例１と同様にして本発明の建材を製造した。
Ｎｏ．３：非発泡性セラミック原料
粘土（小名田木節） ４０重量部長石（雲井
長石） ６０重量部顔料（酸化コバルト
） １．０重量部Ｎｏ．４：発泡性セラミック原料
粘土（小名田木節） ４０
重量部長石（雲井長石）
６０重量部炭化珪素（平均粒径０．５ μｍ）
０．３重量部顔料（酸化クロム）
１．０重量部得られた建材の表面は斑状の青色と緑
色系の濃淡模様が凹凸模様に応じて混在し、独特の緑青
銅調風合いを有した美観を呈するものであった。Example 2 The raw material composition was the following No. 3 and no. The building material of the present invention was manufactured in the same manner as in Example 1 except that Example 4 was used. No. 3: Non-expandable ceramic raw material clay (Onada Kibushi) 40 parts by weight Feldspar (Kumoi feldspar) 60 parts by weight Pigment (cobalt oxide) 1.0 parts by weight No. 4: Expandable ceramic raw material clay (Onada Kibushi) 40
Heavy feldspar (Kumoi feldspar)
60 parts by weight silicon carbide (average particle size 0.5 μm)
0.3 parts by weight pigment (chromium oxide)
The surface of the building material obtained at 1.0 parts by weight had a mottled blue and green shading pattern mixed in accordance with the uneven pattern, and had a beautiful appearance with a unique patina-like texture.
【００１８】[0018]
【発明の効果】以上詳述した通り、本発明の着色発泡セ
ラミック建材の製造法によれば、特有の斑状の２色また
は同色系濃淡模様及び凹凸模様を有した美麗な発泡セラ
ミック建材を製造することができる。[Effects of the Invention] As detailed above, according to the method for producing colored foamed ceramic building materials of the present invention, beautiful foamed ceramic building materials having unique mottled two-color or same-color shading patterns and uneven patterns can be produced. be able to.
Claims (1)
だ第１のスラリーのスプレー乾燥粉と、発泡性セラミッ
ク原料と前記第１のスラリー中の顔料と同色又は異色の
顔料とを含んだ第２のスラリーのスプレー乾燥粉とを混
合した後、乾式プレス成形し、焼成することを特徴とす
る着色発泡セラミック建材の製造法。1. A spray-dried powder of a first slurry containing a non-expandable ceramic raw material and a pigment, and a second slurry containing a foamable ceramic raw material and a pigment of the same color or a different color as the pigment in the first slurry. A method for producing a colored foamed ceramic building material, which comprises mixing a slurry with a spray-dried powder, followed by dry press molding and firing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3008470A JP2531031B2 (en) | 1991-01-28 | 1991-01-28 | Manufacturing method of colored foam ceramic building materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3008470A JP2531031B2 (en) | 1991-01-28 | 1991-01-28 | Manufacturing method of colored foam ceramic building materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04243985A true JPH04243985A (en) | 1992-09-01 |
| JP2531031B2 JP2531031B2 (en) | 1996-09-04 |
Family
ID=11694014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3008470A Expired - Lifetime JP2531031B2 (en) | 1991-01-28 | 1991-01-28 | Manufacturing method of colored foam ceramic building materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531031B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018178656A (en) * | 2017-04-20 | 2018-11-15 | 有限会社 石保 | Clay roof tile |
-
1991
- 1991-01-28 JP JP3008470A patent/JP2531031B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018178656A (en) * | 2017-04-20 | 2018-11-15 | 有限会社 石保 | Clay roof tile |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531031B2 (en) | 1996-09-04 |
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