DE2121033A1 - Colouring plastic articles - by adding dye to the melt in the extruder - Google Patents

Colouring plastic articles - by adding dye to the melt in the extruder

Info

Publication number
DE2121033A1
DE2121033A1 DE19712121033 DE2121033A DE2121033A1 DE 2121033 A1 DE2121033 A1 DE 2121033A1 DE 19712121033 DE19712121033 DE 19712121033 DE 2121033 A DE2121033 A DE 2121033A DE 2121033 A1 DE2121033 A1 DE 2121033A1
Authority
DE
Germany
Prior art keywords
dye
melt
processing machine
pref
supplied
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.)
Pending
Application number
DE19712121033
Other languages
German (de)
Inventor
Peter 6050 Offenbach Jakob
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.)
Colortronic Reinhard GmbH and Co KG
Original Assignee
Colortronic Reinhard GmbH and Co KG
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 Colortronic Reinhard GmbH and Co KG filed Critical Colortronic Reinhard GmbH and Co KG
Priority to DE19712121033 priority Critical patent/DE2121033A1/en
Priority to US22167872 priority patent/US3814388A/en
Priority to BE781891A priority patent/BE781891A/en
Priority to NL7204757A priority patent/NL7204757A/en
Publication of DE2121033A1 publication Critical patent/DE2121033A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/88Adding charges, i.e. additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71Feed mechanisms
    • B01F35/717Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80Forming a predetermined ratio of the substances to be mixed
    • B01F35/83Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/831Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • B01F35/8311Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows with means for controlling the motor driving the pumps or the other dispensing mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/18Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1816Feeding auxiliary material, e.g. colouring material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/288Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/29Feeding the extrusion material to the extruder in liquid form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80Mixing plants; Combinations of mixers
    • B01F33/82Combinations of dissimilar mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0032Pigments, colouring agents or opacifiyng agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Granulated, pref. colourless, thermoplastic material is supplied to a melt chamber where it is heated to produce the melt, and measured quantities of dye are supplied to the melt chamber and mixed with the melt pref. using a paddle, the melt then being fed to an extrusion head by a screw feed. Pref. the dye is supplied to the melt chamber by an electromagnetically operated diaphragen dosing pump which is controlled in dependence on the feed rate of the screw feed to produce a continuous flow of uniform colour density. The necessity of stocking a large variety of different colour granular plastic material is eliminated.

Description

Sinfärbverfahren für hunststoffe, die zu beliebigen Kunststoffartikeln verarbeitet werden Die Erfindung betrifft ein Einfärbverfahren für Kunststoffe, die unter Verwendung bekannter Kunststoff-Verarbeitungsmaschinen zu beliebigen Kunststoffartikeln verarbeitet werden, Bei der Kunststoff-Verarbeitung werden das Einfärben und das Plastifizieren allgemein als zwei voneinander getrennte Arbeitsvorgänge betrachtet und daher auch es unabhängig voneinander mit besonderen Einrichtungen durchgeführt.Coloring process for plastics, resulting in any plastic article processed The invention relates to a coloring process for plastics, using known plastic processing machines to produce any plastic items When processing plastics, the coloring and the Plasticizing is generally viewed as two separate operations and therefore it also carried out independently of one another with special facilities.

Das Einfärben umfaßt dabei im wesentlichen Dosier- und Mischvorgänge, die mit bestimmten Maßnahmen zur Bevorratung des Mischgutes verbunden sind. Das Plastifizieren besteht im Einziehen und Verarbeiten des Mischgutes0 Diese Arbeitsweise hat den Nachteil, daß besondere Einrichtungen zum Mischen und für die Bevorratung und Zufuhr des Iviiischgutes in die Plastifizier-Einrichtung benötigt werden, die zu-dem vor einem Übergang auf einen anderen Farbstoff in zeitraubender Weise gereinigt werden müssen, Der Erfindung liegt die Aufgabe zugrunde, ein Einfärbverfahren für den eingangs erwähnten Zweck vorzuschlagen, bei dem gesonderte Mischeinrichtungen und Maßnahmen zur Bevorratung des Mischgutes und seiner Zuführung in die Plastifizier-Einrichtung entbehrlich sind, so dae neben einer erheblichen apparativen Vereinfachung auch die zeitraubende Reinigungsarbeit entfällt0 Gelöst wird diese Aufgabe nach der Erfindung bei einem Einfärbverfahren der eingangs erwähnten Art dadurch, daß der Farbstoff ohne jede Vormischung undmittelbar und taktweise in die Plastifizier-Einrichtung einer taktweise arbeitenden Kunststoff-Verarbeitungsinaschine eingeleitet wird, so daß innerhalb j jedes MIlaschinentaktes (Zyklus) eine Barbstoffzugabe erfolgt, Es hat sich gezeigt, daß es möglich ist, ohne getrennte Herstellung eines Farbstoffgemisches außerhalb der Kunststoff-Verarbeitungsmaschine im fertigen Kunststoffartikel eine Farbstoffverteilung zu erzielen, die diewenige sogar qualitativ übertrifft, die das Ergebnis herkömmlicher #is#hverfahren ist, Zweckmäßig ist die Steuerung der Dosiereinrichtung für die Farbstoffzugabe an die Steuerung der Kunst stoff-Verarbeitungsmaschine angeschlossen und erhält von dieser ihre Daktfolge.The coloring essentially comprises dosing and mixing processes, which are associated with certain measures to store the mix. That Plasticizing consists of drawing in and processing the mixed material0 This method of working has the disadvantage that special facilities for mixing and storage and supply of the Iviiischgutes are required in the plasticizing device also cleaned in a time-consuming manner before a transition to another dye Need to become, The invention is based on the object of a coloring process To propose for the purpose mentioned at the beginning, in the case of separate mixing devices and measures for storing the material to be mixed and feeding it into the plasticizing device are dispensable, so that in addition to a considerable simplification of the apparatus, there is also the time-consuming cleaning work is eliminated. This object is achieved according to the invention in a coloring process of the type mentioned at the outset in that the dye without any premixing and directly and intermittently in the plasticizing device an intermittent plastic processing machine is introduced, so that dye is added within j of each machine cycle, It has been shown that it is possible without a separate preparation of a dye mixture outside of the plastic processing machine in the finished plastic article a To achieve dye distribution that even qualitatively surpasses the few the result of conventional # is # h methods, the control of the Dosing device for adding dye to the control of the plastic processing machine connected and receives their Dacts from this.

Ein besonderer Vorteil ist erzielbar, wenn durch ein zwischen die Steuerangen der Dosiereinrichtung für die Barbstoffzugabe und der Kunststoff-Verarbeitungsmaschine eingeschaltetes Vorwahlzählwerk die Farbstoffzugabe in mehrere, über die Plastifizierdauer der Kunststoff - Verarbeitungsmaschine verteilte Teilmengen-Zugaben aufgeteilt wird0 Bei dem beschriebenen Einfwrbverfahren werden somit die Farbstoffe unmittelbar und taktweise in die Plastifiziereinrichtung eingeführt, so daß vor dem Übergang auf einen anderen Farbstoff nur letztere gereinigt zu werden braucht. G#esonderte Misch-, Vorrats- und Zufuhreinrichtungen für die getrennte Herstellung eines Mischgutes entfallen völlig.A particular advantage can be achieved if by a between the Control rods of the dosing device for the addition of dye and the plastics processing machine If the preset counter is switched on, the dye can be added in several steps over the plasticizing time plastic - Processing machine distributed partial additions is divided 0 In the described dyeing process, the dyes Immediately and intermittently introduced into the plasticizing device, so that before the transition to another dye only the latter needs to be cleaned. Separate mixing, storage and supply devices for separate production of a mixed material are completely eliminated.

Claims (3)

PatentansprücheClaims 1. Einfärbverfahren für Sunststoffe, die zu beliebigen Xunstsotffartikeln verarbeitet werden, dadurch gekennzeichnet daß der Farbstoff ohne jede Vormischung unmittelbar und taktweise in die Plastifiziereinrichtung einer taktweise arbeitenden Kunststoff-Verarbeitungsmas chine eingeleitet wird, so daß innerhalb Jedes Maschinentaktes (Zyklus) eine Farbstoffzugabe erfolgt.1. Coloring process for plastics that result in any Xunstsotffartartikel processed, characterized in that the dye without any premixing directly and intermittently in the plasticizing device of an intermittent working Plastic processing machine is initiated so that within each machine cycle (Cycle) a dye is added. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerung der Dosiereinrichtung für die Farbstoffzugabe an die Steuerung der Kunststoff-Verarbeitungsmaschine angeschlossen ist und von dieser ihre Taktfolge erhält, 2. The method according to claim 1, characterized in that the controller the dosing device for adding dye to the control of the plastics processing machine is connected and receives its clock sequence from this, 3. Verfahren nach Anspruch 1 und/oder Anspruch 2, dadurch gekennzeichnet, daß durch ein zwischen die Steuerungen der Dosiereinrichtung für die Farbstoffzugabe und der Kunststoff-Verarbeitungsmaschine eingeschaltetes Vorwahlzählwerk die Farbstoffzugabe in mehrere, über die Plastifizier -dauer der Kunststoff-Verarbeitungsmaschine verteilte Teilinengenzugaben aufgeteilt wird.3. The method according to claim 1 and / or claim 2, characterized in that by a between the controls the dosing device for adding dye and the plastics processing machine activated preselection counter allows the dye to be added in several, via the plasticizer -Duration of the plastic processing machine divided into partial additions will.
DE19712121033 1971-02-16 1971-04-29 Colouring plastic articles - by adding dye to the melt in the extruder Pending DE2121033A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19712121033 DE2121033A1 (en) 1971-04-29 1971-04-29 Colouring plastic articles - by adding dye to the melt in the extruder
US22167872 US3814388A (en) 1971-02-16 1972-01-28 Dyeing process for synthetic materials
BE781891A BE781891A (en) 1971-04-10 1972-04-10 METHOD AND APPARATUS FOR DYING SYNTHETIC MATERIALS
NL7204757A NL7204757A (en) 1971-04-10 1972-04-10 Colouring plastic articles - by adding dye to the melt in the extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712121033 DE2121033A1 (en) 1971-04-29 1971-04-29 Colouring plastic articles - by adding dye to the melt in the extruder

Publications (1)

Publication Number Publication Date
DE2121033A1 true DE2121033A1 (en) 1972-11-02

Family

ID=5806305

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712121033 Pending DE2121033A1 (en) 1971-02-16 1971-04-29 Colouring plastic articles - by adding dye to the melt in the extruder

Country Status (1)

Country Link
DE (1) DE2121033A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332242A1 (en) * 1993-09-23 1995-03-30 M & M Marketing Und Industriev Process and apparatus for producing marbled objects of plastic
US6776600B1 (en) 1998-12-30 2004-08-17 Anton Zahoransky Gmbh & Co. Injection molding machine for producing injection-molded articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332242A1 (en) * 1993-09-23 1995-03-30 M & M Marketing Und Industriev Process and apparatus for producing marbled objects of plastic
US6776600B1 (en) 1998-12-30 2004-08-17 Anton Zahoransky Gmbh & Co. Injection molding machine for producing injection-molded articles

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