ATE107190T1 - METHOD OF CONTINUOUSLY MEASURING THE COLOR SHADE OF A COLORED PLASTIC MOLD. - Google Patents

METHOD OF CONTINUOUSLY MEASURING THE COLOR SHADE OF A COLORED PLASTIC MOLD.

Info

Publication number
ATE107190T1
ATE107190T1 AT90113038T AT90113038T ATE107190T1 AT E107190 T1 ATE107190 T1 AT E107190T1 AT 90113038 T AT90113038 T AT 90113038T AT 90113038 T AT90113038 T AT 90113038T AT E107190 T1 ATE107190 T1 AT E107190T1
Authority
AT
Austria
Prior art keywords
measuring
plastic mold
continuously measuring
color shade
colored plastic
Prior art date
Application number
AT90113038T
Other languages
German (de)
Inventor
Detlef Klaus Busch
Horst Grohmann
Harald Kutzner
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
Application granted granted Critical
Publication of ATE107190T1 publication Critical patent/ATE107190T1/en

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)
  • Dental Preparations (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Mechanical Treatment Of Semiconductor (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>
AT90113038T 1989-07-12 1990-07-07 METHOD OF CONTINUOUSLY MEASURING THE COLOR SHADE OF A COLORED PLASTIC MOLD. ATE107190T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE107190T1 true ATE107190T1 (en) 1994-07-15

Family

ID=6384806

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90113038T ATE107190T1 (en) 1989-07-12 1990-07-07 METHOD OF CONTINUOUSLY MEASURING THE COLOR SHADE OF A COLORED PLASTIC MOLD.

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
US20210197421A1 (en) * 2018-08-29 2021-07-01 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Method and apparatus for processing and/or recycling of materials
WO2020193383A1 (en) * 2019-03-26 2020-10-01 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

Family Cites Families (8)

* 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
JPS5830641A (en) * 1981-08-18 1983-02-23 Satake Eng Co Ltd Measuring device for degree of refinery of continuous flow grains
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
DE3505036A1 (en) * 1985-02-14 1986-08-14 Werner & Pfleiderer, 7000 Stuttgart METHOD AND DEVICE FOR THE CONTROLLED ADDITION OF COLOR CONCENTRATES IN A SNAIL MACHINE
JP2567601B2 (en) * 1987-03-27 1996-12-25 サンスター技研 株式会社 Method of inspecting coating state of coating agent
DE3731804A1 (en) * 1987-09-22 1989-03-30 Agfa Gevaert Ag ARRANGEMENT FOR DETERMINING THE DISPERSION DEGREE OF MAGNETIC PIGMENTS IN A DISPERSION

Also Published As

Publication number Publication date
CA2020947A1 (en) 1991-01-13
DE59006110D1 (en) 1994-07-21
EP0407927B1 (en) 1994-06-15
JPH0345304A (en) 1991-02-26
EP0407927A2 (en) 1991-01-16
AU5887090A (en) 1991-01-17
EP0407927A3 (en) 1992-07-22
ES2056308T3 (en) 1994-10-01
AU644086B2 (en) 1993-12-02
ZA905423B (en) 1991-04-24
DE3922902A1 (en) 1991-01-17

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