GB1058021A - Device for silvering electrically unconductive objects - Google Patents

Device for silvering electrically unconductive objects

Info

Publication number
GB1058021A
GB1058021A GB1948264A GB1948264A GB1058021A GB 1058021 A GB1058021 A GB 1058021A GB 1948264 A GB1948264 A GB 1948264A GB 1948264 A GB1948264 A GB 1948264A GB 1058021 A GB1058021 A GB 1058021A
Authority
GB
United Kingdom
Prior art keywords
rinsing
silvering
spraying
nozzles
reducing agent
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.)
Expired
Application number
GB1948264A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANTONIN REZAC
FRANTISEK STETKA
JINDRICH TVRDY
JOSEF TVRSKY
VILEM PRAZAK
Original Assignee
ANTONIN REZAC
FRANTISEK STETKA
JINDRICH TVRDY
JOSEF TVRSKY
VILEM PRAZAK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANTONIN REZAC, FRANTISEK STETKA, JINDRICH TVRDY, JOSEF TVRSKY, VILEM PRAZAK filed Critical ANTONIN REZAC
Publication of GB1058021A publication Critical patent/GB1058021A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C23C18/1664—Process features with additional means during the plating process
    • C23C18/1669—Agitation, e.g. air introduction
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1619—Apparatus for electroless plating
    • C23C18/1632—Features specific for the apparatus, e.g. layout of cells and of its equipment, multiple cells
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C23C18/1658—Process features with two steps starting with metal deposition followed by addition of reducing agent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C23C18/166—Process features with two steps starting with addition of reducing agent followed by metal deposition
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals
    • C23C18/44—Coating with noble metals using reducing agents

Abstract

An article e.g. a sound record or a glass ornament, on a rotating disc 4 is silvered by spraying various solutions through adjustable <PICT:1058021/C6-C7/1> nozzles 20, and the solutions are drained through a two-way cock either to a drain or to a receptacle 9. The process comprises rinsing with water, degreasing, rinsing, sensitizing, rinsing, simultaneously spraying through two nozzles the silvering solution and a reducing agent, and finally rinsing. The sensitizing solution is stannous chloride and HCl. The silvering solution is 12.5 g./1. of silver nitrate titrated with ammonia. The reducing agent is 22.5 g./1. of glucose and 2 mls. of 37% formaldehyde. Soda lye may also be mixed with the silvering solution during spraying. The operation of the apparatus may be controlled electrically. The liquids are fed from pressurized reservoirs 3.
GB1948264A 1963-05-13 1964-05-11 Device for silvering electrically unconductive objects Expired GB1058021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS268063 1963-05-13

Publications (1)

Publication Number Publication Date
GB1058021A true GB1058021A (en) 1967-02-08

Family

ID=5364580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1948264A Expired GB1058021A (en) 1963-05-13 1964-05-11 Device for silvering electrically unconductive objects

Country Status (2)

Country Link
GB (1) GB1058021A (en)
NL (1) NL6405303A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403625A (en) * 1990-02-12 1995-04-04 U.S. Philips & Du Pont Optical Company Method for the electroless deposition of a multilayer on a flat article from a metallisation liquid, a device for carrying out said method and a master disc obtained according to the method
ES2161588A1 (en) * 1998-09-22 2001-12-01 Bayo Pilar Diez Silverplating of non porous curved surfaces consists of separate injection of silver nitrate and glucose based compounds, to give a mirror finish

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403625A (en) * 1990-02-12 1995-04-04 U.S. Philips & Du Pont Optical Company Method for the electroless deposition of a multilayer on a flat article from a metallisation liquid, a device for carrying out said method and a master disc obtained according to the method
ES2161588A1 (en) * 1998-09-22 2001-12-01 Bayo Pilar Diez Silverplating of non porous curved surfaces consists of separate injection of silver nitrate and glucose based compounds, to give a mirror finish

Also Published As

Publication number Publication date
NL6405303A (en) 1964-11-16

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