EP0407927A3 - Method for making coloured plastic material - Google Patents

Method for making coloured plastic material Download PDF

Info

Publication number
EP0407927A3
EP0407927A3 EP19900113038 EP90113038A EP0407927A3 EP 0407927 A3 EP0407927 A3 EP 0407927A3 EP 19900113038 EP19900113038 EP 19900113038 EP 90113038 A EP90113038 A EP 90113038A EP 0407927 A3 EP0407927 A3 EP 0407927A3
Authority
EP
European Patent Office
Prior art keywords
measuring
coloured plastic
signals
plastic material
mixing system
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
Application number
EP19900113038
Other languages
German (de)
Other versions
EP0407927B1 (en
EP0407927A2 (en
Inventor
Detlef Klaus Busch
Horst Grohmann
Harald Kutzner
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0407927A2 publication Critical patent/EP0407927A2/en
Publication of EP0407927A3 publication Critical patent/EP0407927A3/en
Application granted granted Critical
Publication of EP0407927B1 publication Critical patent/EP0407927B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/2131—Colour or luminescence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Dental Preparations (AREA)

Abstract

In the case of the present method, the colour of the material is continuously measured and the measuring signals are used indirectly for controlling the mixing ratio of plastic and pigment. For this purpose, samples are continuously taken from the material flow downstream of the mixing system (1) and this material is taken closely packed through the measuring device (6) past the measuring window. The surface of the material particles is illuminated by the measuring window and the reflected light is captured by sensors, which allow the colours green, blue and red to be measured. The processing of the measuring signals to form control signals for the metering systems in the mixing system takes place by computer. The method is suitable in particular for making coloured plastic granules. <IMAGE>
EP90113038A 1989-07-12 1990-07-07 Method for continously measuring the color of colored plastic granulates Expired - Lifetime EP0407927B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922902A DE3922902A1 (en) 1989-07-12 1989-07-12 METHOD FOR PRODUCING A COLORED PLASTIC MOLD
DE3922902 1989-07-12

Publications (3)

Publication Number Publication Date
EP0407927A2 EP0407927A2 (en) 1991-01-16
EP0407927A3 true EP0407927A3 (en) 1992-07-22
EP0407927B1 EP0407927B1 (en) 1994-06-15

Family

ID=6384806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113038A Expired - Lifetime EP0407927B1 (en) 1989-07-12 1990-07-07 Method for continously measuring the color of colored plastic granulates

Country Status (8)

Country Link
EP (1) EP0407927B1 (en)
JP (1) JPH0345304A (en)
AT (1) ATE107190T1 (en)
AU (1) AU644086B2 (en)
CA (1) CA2020947A1 (en)
DE (2) DE3922902A1 (en)
ES (1) ES2056308T3 (en)
ZA (1) ZA905423B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646409B1 (en) * 1993-10-04 1999-12-08 General Electric Company System for controlling the color of compounded polymer(s) using in-process color measurements
DE19626785A1 (en) * 1996-07-03 1998-01-08 Basf Ag Process and device for the continuous color measurement of plastic molding compounds
BR9801134A (en) 1998-03-26 2006-11-14 Renner Herrmann Sa apparatus and process for the continuous preparation of a fluid with automatic adjustment of its properties
US6469789B1 (en) 2000-08-22 2002-10-22 General Electric Company On-line color measurement system for cooled product
DE10219034B4 (en) * 2002-04-29 2004-04-08 Bayer Ag Method and device for determining the color of plastic granules
WO2009040291A1 (en) * 2007-09-21 2009-04-02 Basf Se Method and apparatus for measuring colour properties of plastic granules
DE102008013170A1 (en) * 2008-03-07 2009-09-10 Wobben, Aloys A method of adjusting a mixing ratio of two or more components
DE102011113543A1 (en) * 2011-09-15 2013-03-21 Klöckner Pentaplast GmbH & Co. KG Colored polymeric moldings, process and apparatus for producing the moldings
EP4119320A1 (en) * 2018-08-29 2023-01-18 EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H. Method and device for preparing, processing and/or recycling materials
US20220170862A1 (en) * 2019-03-26 2022-06-02 Covestro Intellectual Property Gmbh Co. Kg Method for determining a color value of a transparent bulk material
DE102019217090A1 (en) * 2019-11-06 2021-05-06 LIEB TGA GmbH Mixing device, casting device and method for operating a mixing device
CN113546552A (en) * 2021-07-27 2021-10-26 北京住总集团有限责任公司 Mud stirring device
FR3126321A1 (en) * 2021-09-01 2023-03-03 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude CONTINUOUS MIXING DEVICE AND ASSOCIATED METHOD
FR3127281B1 (en) * 2021-09-23 2023-08-25 Exel Ind Shade measuring device for a fluid distribution system
CN115382461B (en) * 2022-10-31 2023-05-12 东营市宝泽能源科技有限公司 Iron ion stabilizer production device and method with proportioning adjustment function

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224324A (en) * 1962-09-27 1965-12-21 Monsanto Co Method of presentation of compressionable fibrous samples
DE2133797A1 (en) * 1971-07-07 1973-01-25 Hoechst Ag Polymer discolouration measurement - during flow by optical absorption to detect quality defects
US4403866A (en) * 1982-05-07 1983-09-13 E. I. Du Pont De Nemours And Company Process for making paints
EP0191338A2 (en) * 1985-02-14 1986-08-20 Werner & Pfleiderer GmbH Method and device for the controlled feeding of colour concentrates to machines using helices
EP0284090A2 (en) * 1987-03-27 1988-09-28 Sunstar Engineering Inc. Method of checking the workmanship of paint coating
US4799799A (en) * 1985-02-06 1989-01-24 The United States Of America As Represented By The Secretary Of The Interior Determining inert content in coal dust/rock dust mixture
EP0308741A2 (en) * 1987-09-22 1989-03-29 BASF Magnetics GmbH Procedure of controlling the dispersivity of magnetic pigments in a dispersion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830641A (en) * 1981-08-18 1983-02-23 Satake Eng Co Ltd Measuring device for degree of refinery of continuous flow grains

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224324A (en) * 1962-09-27 1965-12-21 Monsanto Co Method of presentation of compressionable fibrous samples
DE2133797A1 (en) * 1971-07-07 1973-01-25 Hoechst Ag Polymer discolouration measurement - during flow by optical absorption to detect quality defects
US4403866A (en) * 1982-05-07 1983-09-13 E. I. Du Pont De Nemours And Company Process for making paints
US4799799A (en) * 1985-02-06 1989-01-24 The United States Of America As Represented By The Secretary Of The Interior Determining inert content in coal dust/rock dust mixture
EP0191338A2 (en) * 1985-02-14 1986-08-20 Werner & Pfleiderer GmbH Method and device for the controlled feeding of colour concentrates to machines using helices
EP0284090A2 (en) * 1987-03-27 1988-09-28 Sunstar Engineering Inc. Method of checking the workmanship of paint coating
EP0308741A2 (en) * 1987-09-22 1989-03-29 BASF Magnetics GmbH Procedure of controlling the dispersivity of magnetic pigments in a dispersion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 109 (P-196)[1254], 12. Mai 1983; & JP,A,58 030 641 (SATAKE SEISAKUSHO) 23-02-1983, zusammenfassung. *

Also Published As

Publication number Publication date
AU644086B2 (en) 1993-12-02
DE59006110D1 (en) 1994-07-21
ES2056308T3 (en) 1994-10-01
ATE107190T1 (en) 1994-07-15
CA2020947A1 (en) 1991-01-13
EP0407927B1 (en) 1994-06-15
ZA905423B (en) 1991-04-24
DE3922902A1 (en) 1991-01-17
EP0407927A2 (en) 1991-01-16
JPH0345304A (en) 1991-02-26
AU5887090A (en) 1991-01-17

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