US2728158A - Method of producing colored china clay images - Google Patents

Method of producing colored china clay images Download PDF

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US2728158A
US2728158A US285353A US28535352A US2728158A US 2728158 A US2728158 A US 2728158A US 285353 A US285353 A US 285353A US 28535352 A US28535352 A US 28535352A US 2728158 A US2728158 A US 2728158A
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china clay
metal compound
cast
depressions
colored
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Bach Johan Martin Michel
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/04—Modelling plastic materials, e.g. clay
    • B44C3/042—Modelling plastic materials, e.g. clay producing a copy from an original structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24926—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including ceramic, glass, porcelain or quartz layer

Definitions

  • the invention relates to a process for the reproduction of a picture, painting or photograph on an article as a tinted relief.
  • a further object is the method of producing articles, having at least at a part of the surface a tinted decoration in low relief, which is a good reproduction of a picture, a painting or a photograph in an almost automatic way.
  • a sheet of gelatine or gelatinous material is photosensitized by the action of a solution of dichromate salts in water, whereafter it is dried in the air. This sheet is pressed against a photographic negative or diapositive of the picture that I Want to reproduce, and light is passed through this negative or diapositive on the gelatin sheet.
  • the time of exposure varies in accordance with the intensity of the light and the darkness of the picture; as a rule a time of exposure to sunlight of l-S hours is sufficient.
  • the sheet is soaked in water, e. g. in water of about 30 C. for l-6 days.
  • the gelatine swells to an extent, dependent on the intensity of the light to which it has been exposed and on the gelatin surface an exact reproduction in low relief of the picture that has to be reproduced is formed.
  • this low relief picture remains on the gelatin sheet.
  • the difference in height of the different parts of the low relief varies with the time of exposure and the soaking time.
  • the difference in height of the embossed parts and the recesses has to be at least mm. and preferably 3-5 mm.
  • This gelatin sheet can be used as such as a mould but I prefer to harden it before using it for this purpose by the action of a hardening agent as e. g. a solution of formaldehyde in water. It may be used as a casting mould for substances like gypsum, cement, concrete and other substances, hardening at low temperatures.
  • a hardening agent e. g. a solution of formaldehyde in water. It may be used as a casting mould for substances like gypsum, cement, concrete and other substances, hardening at low temperatures.
  • the invention consists in the method of tinting or coloring these low relief pictures to exact reproductions of the example and in the articles, having tinted or colored reproductions made by this tinting or coloring process.
  • this coloring process is performed by bringing into the recesses of a low relief picture on the surface a locally varying little quantity of a tinting or a coloring matter, this quantity locally corresponding with the depth of the recesses and therefore providing herein a grade of tint or colour corresponding with the gradations in tint or colour of the example, providing a tinted or colored low relief reproduction of the example.
  • One way of carrying out this process is by sutfusing the low relief picture with a thin layer of a slow settling diluted suspension of a tinting or coloring agent in a suspending liquid, settling of said tinting or coloring agent in a quantity locally varying in correspondence with the thickness of the layer of suspension on the surface and therefore varying also with the depth of the recesses, removing the suspending liquid after that said tinting or coloring agent is substantially settled.
  • the concentration of the tinting or coloring agents in the suspension must not be more than 6 percent by weight, and preferably between 1 and 2 percent.
  • concentration of the tinting or coloring agents in the suspension must not be more than 6 percent by weight, and preferably between 1 and 2 percent.
  • the surface of the low relief has to be wetted evenly by the suspension.
  • a surface active agent as e. g. carboxymethyl-cellulose
  • the article is of a porous character, as e. g. an unglazed ceramic body, this body has to be wetted with the suspending liquid before sufiusing the suspension on it in order to prevent sucking of the suspension into the body.
  • tinting or coloring matter is applied as a dry powder on the moist'surface of the matrix or mould before casting or moulding the article. By blowing the tinting matter as a dust over the wet surface of a mould with a low relief this dust adheres nearly only on the elevations, and no coloring matter is deposited in the recesses.
  • I can also apply the coiour powder on the surface of a matrix with a low relief so that the quantity varies according to the height of the elevations by tapping all over the wetted surface of the low relief with a linen bag filled up with the colour powder.
  • a casting is made in this matrix, e. g. a casting of clay in a matrix of gypsum, the powder is transferred to the surface of the casting without mixing substantially with the casting substance, and
  • Fig.2 is atransverse vertical. sectional view thereof .on line IITII of Fig. 1.
  • Thebody 13 isof white burnt china clay. Onthe surfaceais a .good relief rpicture vof e. g. aboys portrait. Thedark parts of the bonnet and the surrounding rim have deep recesses indicated with: '10, 12, 17 andlS. The hair of the .boy forrnsrecessesof lower depth indicated with 13;the parting .14 has almost the same height. as'the uncolored part of the tilelo.
  • Agood result is also obtained when from a dried casting of Ichina clay, whichis not burnt, the low relief picture is suffused with a suspension of .a ceramic coloring agent as cobaltoxide, manganese oxide, ferric oxide etc., and afterwards the colored casting is burnt.
  • the process is applicable in the-same Way onlow relief pictures of metal castings, of chocolate, of soap, of resin, of rubber etc.
  • a-process of producing colored china clay images the steps of depositingon a substantially horizontal surface of a cast china clay body an aqueous suspension of a water-insoluble metal compound selected from thegroup consisting of oxides of cobalt, manganese and iron in an amount sufficient to cover said surface of said cast body and containing a maximum of 6% by weight of said metal compound and also containing sugaras a viscosity increasing additive, said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle in the said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid from said surface; and burning said vcast china clay bodythereby combining said metal compound with the china clay and forming a colored china cl ay image.
  • a water-insoluble metal compound selected from thegroup consisting of oxides of cobalt, manganese and iron in an amount sufficient to cover said surface
  • said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle'inthe said depressions in said "surface of said cast body,thereby'forming a coatingof said metal compound on'said surface the thickness of which varies in direct proportionto the depthof'sa'id depressions; removing-the supernatant liquid from said 'surface; and burning said cast china 'clay'body'thereby combining said metal compound with the china clay and forming acolored china clay'ima'ge.
  • manganese andiiron inl an amount sufiicient to cover said surface of said cast body-'andcontaining amaximum of 6% by weight of said metal compound and also containing sugar as a viscosity increasing additive, said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle in the said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid from said surface; and burning said cast china clay body thereby combining said metal compound with the china clay and forming a colored china clay image.

Description

Dec. 27, 1955 J. M. M. BACH 2,728,158
METHOD OF PRODUCING COLORED CHINA CLAY IMAGES 1 Filed April 30, 1952 METHOD OF PRODUCING COLORED CHINA CLAY IMAGES Johan Martin Michel Bach, Rotterdam, Netherlands Application April 30, 1952, Serial No. 285,353 Claims priority, application Netherlands May 2, 1951 7 Claims. (Cl. 41-26) The invention relates to a process for the reproduction of a picture, painting or photograph on an article as a tinted relief.
It is an object of the invention to provide for a method of producing articles, having at least at a part of the surface a decoration which is a good low relief reproduc- H tion of a picture, a painting or a photograph having the same gradations in tint or in colour as the example.
A further object is the method of producing articles, having at least at a part of the surface a tinted decoration in low relief, which is a good reproduction of a picture, a painting or a photograph in an almost automatic way.
Other objects of the invention will become apparent hereinafter in the specification.
A sheet of gelatine or gelatinous material is photosensitized by the action of a solution of dichromate salts in water, whereafter it is dried in the air. This sheet is pressed against a photographic negative or diapositive of the picture that I Want to reproduce, and light is passed through this negative or diapositive on the gelatin sheet.
The time of exposure varies in accordance with the intensity of the light and the darkness of the picture; as a rule a time of exposure to sunlight of l-S hours is sufficient. Hereafter the sheet is soaked in water, e. g. in water of about 30 C. for l-6 days. In the water the gelatine swells to an extent, dependent on the intensity of the light to which it has been exposed and on the gelatin surface an exact reproduction in low relief of the picture that has to be reproduced is formed. When dried in the air this low relief picture remains on the gelatin sheet. The difference in height of the different parts of the low relief varies with the time of exposure and the soaking time. In order that I may perform in the right way the tinting or coloring process as described hereinafter, the difference in height of the embossed parts and the recesses has to be at least mm. and preferably 3-5 mm.
This gelatin sheet can be used as such as a mould but I prefer to harden it before using it for this purpose by the action of a hardening agent as e. g. a solution of formaldehyde in water. It may be used as a casting mould for substances like gypsum, cement, concrete and other substances, hardening at low temperatures.
When a casting with a curved surface e. g. a spherical form is wanted, I fix a sensitized and exposed gelatin sheet on a surface of the desired form and soak and dry it in this state.
When castings or mouldings of substances as e. g. resins, metals or plastics are wanted, these cannot be pressed or cast in a gelatin mould. For these purposes I prepare a gelatin low relief andmake by pressing it into casting sand a casting mould in which a metal is cast. This metal object can be used as a mould for pressing the desired articles.
All the articles made in this or a similar way have on the surface in low relief a good reproduction of the picture, painting or photograph, the depth ofthe recesses of this relief corresponding exactly with the grade of tint-or colour of the example.
nite States Patent The invention consists in the method of tinting or coloring these low relief pictures to exact reproductions of the example and in the articles, having tinted or colored reproductions made by this tinting or coloring process.
According to the invention this coloring process is performed by bringing into the recesses of a low relief picture on the surface a locally varying little quantity of a tinting or a coloring matter, this quantity locally corresponding with the depth of the recesses and therefore providing herein a grade of tint or colour corresponding with the gradations in tint or colour of the example, providing a tinted or colored low relief reproduction of the example.
One way of carrying out this process is by sutfusing the low relief picture with a thin layer of a slow settling diluted suspension of a tinting or coloring agent in a suspending liquid, settling of said tinting or coloring agent in a quantity locally varying in correspondence with the thickness of the layer of suspension on the surface and therefore varying also with the depth of the recesses, removing the suspending liquid after that said tinting or coloring agent is substantially settled.
To obtain good results the concentration of the tinting or coloring agents in the suspension must not be more than 6 percent by weight, and preferably between 1 and 2 percent. When greater concentrations are used the gradations of the reproduction differ from the gradations of the example.
Further the surface of the low relief has to be wetted evenly by the suspension. When the article is of a type diflicultly moistened by the suspending agent, as e. g. metal by water, a surface active agent, as e. g. carboxymethyl-cellulose, must be added to the suspending liquid. When the article is of a porous character, as e. g. an unglazed ceramic body, this body has to be wetted with the suspending liquid before sufiusing the suspension on it in order to prevent sucking of the suspension into the body.
In order to control the settling time of the suspension I may add to the suspension a protective colloid.
If it is wanted to increase the settling time I can do this also by increasing the viscosity of the suspending liquid by addition of a substance which increases the viscosity of this liquid, as e. g. addition of sugar, when this liquid is water. When the whole surface of the low relief is suffused at a time, a tinted picture is obtained.
It is, however, possible to apply the process successively with suspensions of different dyes on different parts of the low relief for the production of pictures in different colours.
When objects as a vase or a can or jar must be provided with tinted or colored low relief pictures at all sides the process as described time. On sutfusing and settling of the suspension the low relief must be substantially horizontal. Therefore from a round shaped article only a little part of the surface can be colored at a time. In this case the tinting or coloring matter is applied as a dry powder on the moist'surface of the matrix or mould before casting or moulding the article. By blowing the tinting matter as a dust over the wet surface of a mould with a low relief this dust adheres nearly only on the elevations, and no coloring matter is deposited in the recesses.
I canalso apply the coiour powder on the surface of a matrix with a low relief so that the quantity varies according to the height of the elevations by tapping all over the wetted surface of the low relief with a linen bag filled up with the colour powder.
If after coloring of the matrix a casting is made in this matrix, e. g. a casting of clay in a matrix of gypsum, the powder is transferred to the surface of the casting without mixing substantially with the casting substance, and
hereinbefore is taking up much 3. after solidification a casting with a good tinted low relief reproduction of the example is obtained.
In the accompanying drawing:
Fig; lzis SXIOPTPIZHViGW of achina tile :withua tinted lowrelief reproduction of 'aphotograph of a boy;
Fig.2 is atransverse vertical. sectional view thereof .on line IITII of Fig. 1.
Thebody 13 isof white burnt china clay. Onthe surfaceais a .good relief rpicture vof e. g. aboys portrait. Thedark parts of the bonnet and the surrounding rim have deep recesses indicated with: '10, 12, 17 andlS. The hair of the .boy forrnsrecessesof lower depth indicated with 13;the parting .14 has almost the same height. as'the uncolored part of the tilelo.
.This tile .is soaked with water :and suffused with a suspension of 1 percent of cobaltoxide in a percent solutionof sugar in water, by weight, so that the recesses areucompletely filled-:with it.
off. Hereafter the surface of the tile is'sprinkled Witha glaze powder melting to a translucent glaze, and the tile is burnt. The result is indicated in Figure 1..
Agood result is also obtained when from a dried casting of Ichina clay, whichis not burnt, the low relief picture is suffused with a suspension of .a ceramic coloring agent as cobaltoxide, manganese oxide, ferric oxide etc., and afterwards the colored casting is burnt.
The process is applicable in the-same Way onlow relief pictures of metal castings, of chocolate, of soap, of resin, of rubber etc.
What I claim is:
1. In a process of producingcolored china clay images, the steps of depositing on a substantially horizontal surface of a cast china clay body anaqueous suspension of a water-insoluble metal. compound not absorbable by said china clay body and which on burning forms a colored compound with china clay in an amount sufiicient to cover said surface of said cast body and containing a maximum of 6% byweight of said metal compound and also conraining sugar as a viscosity increasing additive, said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle in the said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth. of said depressions; removing the supernatant liquid from said surface; and burning said cast china clay body thereby combining said metal compound with the china clay and forming a colored china clay image.
2. .ln a-process of producing colored china clay images, the steps of depositingon a substantially horizontal surface of a cast china clay body an aqueous suspension of a water-insoluble metal compound selected from thegroup consisting of oxides of cobalt, manganese and iron in an amount sufficient to cover said surface of said cast body and containing a maximum of 6% by weight of said metal compound and also containing sugaras a viscosity increasing additive, said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle in the said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid from said surface; and burning said vcast china clay bodythereby combining said metal compound with the china clay and forming a colored china cl ay image.
in a process of producing colored china clay images, the steps of depositing on a substantially horizontal surface of a cast china clay body an aqueous suspension of cobalt oxide which is not absorbable by said china clay body and which on burning forms a colored compound with chinaelay in an amount sufficient to cover said sur faeciof said cast body containing a maximum of 6% by weight of saidicobal-t oxide and also containingsugar After .some minutes the. CObflltOXidCzlS .settleddown, and :the sugarsolution poured.
as a viscosityincreasing additive, said surface having v.depressions of varying depth; allowing said cobalt oxide in the thus applied suspension" to settle in the said depressions in said surface of said cast body, thereby forming a coating of said cobalt oxide on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid from said surface; and burning said castchina clay body thereby combining said cobalt oxide with the china clay and forming a colored china clay image.
4. in a process of producing colored china clay images, the steps of depositing on a substantially horizontal surface of a cast china clay body an aqueous suspension of a water-insoluble metal compound selected from the group consisting of oxides of cobalt, manganese and iron and containing a surface active agent in an amount suflicient to cover said surface of said cast body and containing a maximum of 6% by'weight of said metal compound'and also "containing sugar as -a"viscosity increasing additive,"
said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle'inthe said depressions in said "surface of said cast body,thereby'forming a coatingof said metal compound on'said surface the thickness of which varies in direct proportionto the depthof'sa'id depressions; removing-the supernatant liquid from said 'surface; and burning said cast china 'clay'body'thereby combining said metal compound with the china clay and forming acolored china clay'ima'ge.
5. Ina process of producing'co'lored china clay images, the steps of depositing on a"subst'antially horizontal surface of a cast china cl'ay'body an aqueous suspension of a water-insoluble metal compound selected'fromthe group consisting of cobalt, manganese'and iron in an amount sufiicient to cover said surface of said cast body and con: taining 21 maximum of 6% by weight of said metal compound and also containing sugar as a viscosity increasing additive,'said surface having depressions of varying depth; allowing said metal compound in 'the thus applied suspension to settle in the-said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid froth-said surface; and burning said cast china clay thereby combining said metal compound with the china clay and forming a colcred china clay image.
6. In a process of producing colored china clay images, the steps (if-wetting the surface of a cast china clay body with water; depositing on 'a substantially horizontal surface of 'th'e'thus wetted -surface of said cast china clay body'an aqueous suspension of a water-insoluble metal compound not 'absorbable by said china clay body and which on 'burningforms a colored compound with china clay in an amount sullicient to' cover said surface of said cast body and containing'a maximum of 6% by weight of said metal compound and also containing sugar as a viscosity increasing'addi tive; said surface having depressions of varying depth; allowing said metal compound in the thus'appliedsuspensionto settle-in the said depressions in said surface "of 'said'cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion tothedepth of said depressions; removingthesupernatant liquid from said surface; and burningsaid cast china clay body thereby combining said metal compound with the china clay and forming a-:colored china clay image.
7. In a-process of producing colored china clay images, the steps cfwettingthe surface 'of a cast china claybody with water; depositing on a substantially horizontal surface or" the thuswetted surface of-said east china clay body an aqueous --suspension of-a water insoluble metal compound selected from the group consisting of oxides of cobalt. manganese andiiron inl an amount sufiicient to cover said surface of said cast body-'andcontaining amaximum of 6% by weight of said metal compound and also containing sugar as a viscosity increasing additive, said surface having depressions of varying depth; allowing said metal compound in the thus applied suspension to settle in the said depressions in said surface of said cast body, thereby forming a coating of said metal compound on said surface the thickness of which varies in direct proportion to the depth of said depressions; removing the supernatant liquid from said surface; and burning said cast china clay body thereby combining said metal compound with the china clay and forming a colored china clay image.
References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. IN A PROCESS OF PRODUCING COLORED CHINA CLAY IMAGES, THE STEPS OF DEPOSITING ON A SUBSTANTIALLY HORIZONTAL SURFACE OF A CAST CHINA CLAY BODY AN AQUEOUS SUSPENSION OF A WATER-INSOLUBLE METAL COMPOUND NOT ABSORBABLE BY SAID CHINA CLAY BODY AND WHICH ON BURNING FORMS A COLORED COMPOUND WITH CHINA CLAY IN AN AMOUNT SUFFICIENT TO COVER SAID SURFACE OF SAID CAST BODY AND CONTAINING A MAXIMUM OF 6% BY WEIGHT OF SAID METAL COMPOUND AND ALSO CONTAINING SUGAR AS A VISCOSITY INCREASING ADDITIVE, SAID SURFACE HAVING DEPRESSIONS OF VARYING DEPTH; ALLOWING SAID METAL COMPOUND IN THE THUS APPLIED SUSPENSION TO SETTLE IN THE SAID DEPRESSIONS IN SAID SURFACE OF SAID CAST BODY, THEREBY FORMING A COATING OF SAID METAL COMPOUND ON SAID SURFACE THE THICKNESS OF WHICH VARIES IN DIRECT PROPORTION TO THE DEPTH OF SAID DEPRESSIONS; REMOVING THE SUPERNATANT LIQUID FROM SAID SURFACE; AND BURNING SAID CAST CHINA CLAY BODY THEREBY COMBINING SAID METAL COMPOUND WITH THE CHINA CLAY AND FORMING A COLORED CHINA CLAY IMAGE.
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
US4173609A (en) * 1976-06-10 1979-11-06 Euroc Development Ab Method of manufacturing building elements from so-called foamed ceramics
US4501714A (en) * 1982-03-02 1985-02-26 Hutschenreuther Aktiengesellschaft Method for molding a ceramic article
US5176771A (en) * 1991-12-23 1993-01-05 Hughes Aircraft Company Multilayer ceramic tape substrate having cavities formed in the upper layer thereof and method of fabricating the same by printing and delamination

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US1067198A (en) * 1912-04-02 1913-07-08 Alfred M Sandig Coloring process.
US1669869A (en) * 1927-04-26 1928-05-15 Farmer Ernest Howard Process of producing colored-photographic prints
US1792486A (en) * 1929-07-05 1931-02-17 Of Engraving Inc Bureau Process of producing plaque etchings
US1888344A (en) * 1928-02-15 1932-11-22 Bon Piero Production of reliefs and of colored pictures
US2181452A (en) * 1936-10-16 1939-11-28 Walter D Ford Method of transferring photogrpahic designs on ceramic ware
US2244905A (en) * 1938-08-24 1941-06-10 Crawford Jack Method of producing multicolored relief pictures
US2324069A (en) * 1939-05-19 1943-07-13 Eastman Kodak Co Color photography

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Publication number Priority date Publication date Assignee Title
US36821A (en) * 1862-10-28 Tevin
US1067198A (en) * 1912-04-02 1913-07-08 Alfred M Sandig Coloring process.
US1669869A (en) * 1927-04-26 1928-05-15 Farmer Ernest Howard Process of producing colored-photographic prints
US1888344A (en) * 1928-02-15 1932-11-22 Bon Piero Production of reliefs and of colored pictures
US1792486A (en) * 1929-07-05 1931-02-17 Of Engraving Inc Bureau Process of producing plaque etchings
US2181452A (en) * 1936-10-16 1939-11-28 Walter D Ford Method of transferring photogrpahic designs on ceramic ware
US2244905A (en) * 1938-08-24 1941-06-10 Crawford Jack Method of producing multicolored relief pictures
US2324069A (en) * 1939-05-19 1943-07-13 Eastman Kodak Co Color photography

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173609A (en) * 1976-06-10 1979-11-06 Euroc Development Ab Method of manufacturing building elements from so-called foamed ceramics
US4501714A (en) * 1982-03-02 1985-02-26 Hutschenreuther Aktiengesellschaft Method for molding a ceramic article
US5176771A (en) * 1991-12-23 1993-01-05 Hughes Aircraft Company Multilayer ceramic tape substrate having cavities formed in the upper layer thereof and method of fabricating the same by printing and delamination

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