DE2117588A1 - 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
DE2117588A1
DE2117588A1 DE19712117588 DE2117588A DE2117588A1 DE 2117588 A1 DE2117588 A1 DE 2117588A1 DE 19712117588 DE19712117588 DE 19712117588 DE 2117588 A DE2117588 A DE 2117588A DE 2117588 A1 DE2117588 A1 DE 2117588A1
Authority
DE
Germany
Prior art keywords
melt
dye
pref
supplied
processing machine
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
DE19712117588
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 DE19712117588 priority Critical patent/DE2117588A1/en
Priority to US22167872 priority patent/US3814388A/en
Priority to BE781891A priority patent/BE781891A/en
Priority to NL7204757A priority patent/NL7204757A/en
Publication of DE2117588A1 publication Critical patent/DE2117588A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1816—Feeding auxiliary material, e.g. colouring material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/44—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with paddles or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/94—Liquid charges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0032—Pigments, colouring agents or opacifiyng agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (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

Elnfärbverfahren für Kunststoffe mit oder ohne Mischer sowie Dosiergeräten für Kunststoff, Färbmittel und sonstige Zusätze.Coloring process for plastics with or without mixer and dosing devices for plastic, colorants and other additives.

Die Erfindung betrifft ein Einfärbverfahren für Kunststoffe mit oder ohne Mischer sowie Dosiergeräten für Kunststoff, Färbmittel und sonstige Zusätze.The invention relates to a coloring process for plastics with or Without mixers and dosing devices for plastic, colorants and other additives.

Bei der Kunststoffverarbeitung werden das Einfärben und das Plastifizieren bislang als zwei voneinander getrennte Arbeitsvorgänge betrachtet und daher auch unabhängig voneinander durchgeführt. Die bekannten Elnfärbverfahren führen dazu, daß in einem Behälter ständig eine ausreichende Menge des in der gewünschten Weise eingefärbten Kunststoffmaterials zur Verfügung steht, das zum laufenden Nachschub in die nachgeordnete Verarbeitungsmaschine verwendet werden kann, die das eingefärbte Kunststoffmaterial in die gewünschten Formkörper umwandelt. Zwischen beiden Arbeitsvorgängen wird somit eine Grenze durch den als Puffer wirkenden Vorratsbehälter gebildet, in dem sich der ausreichend groß zu bemessende Vorrat des eingefärbten Kunststoffmaterials befindet. Dieser Vorratsbehälter bildet zugleich auch ein Bindeglied zwischen den getrennt durchgeführten Arbeitsverfahren des Einfärbens und Verarbeitens. Der Nachteil besteht hierbei darin, daß die ausreichende Bevorratung des eingefärbten Kunststoffmaterials einen raummäßigen und apparativen Aufwand erfordert, der an sich überflüssig ist, da er weder durch das Einfärben, noch durch die Verarbeitung (Spritzgießen, Extrudieren etc.In plastics processing, coloring and plasticizing are used so far considered as two separate work processes and therefore also carried out independently. The well-known inking processes lead to that in a container always a sufficient amount of the in the desired manner colored plastic material is available for ongoing replenishment can be used in the downstream processing machine that produces the colored Converts plastic material into the desired molded body. Between the two operations a boundary is thus formed by the storage container acting as a buffer, in which there is a sufficiently large stock of the colored plastic material is located. This storage container also forms a link between the separately carried out working procedures of coloring and processing. The disadvantage consists in the fact that there is a sufficient supply of the colored plastic material requires space and equipment that is superfluous in itself, because it is neither colored nor processed (injection molding, extrusion Etc.

verursacht wtrd, sondern lediglich der Verknüpfung der beiden Arbeitsvorgänge dient.caused wtrd, but only the link between the two work processes serves.

Der Erfindung liegt die Aufgabe zugrunde, diesen als überflüssig erkannten raummäßigen und apparativen Aufwand zu vermeiden.The invention is based on the object of recognizing this as superfluous to avoid space and equipment expenditure.

Gelöst wird diese Auf#gabe nach der Erfindung bei dem Einfärbverfahren der eingangs erwähnten Art dadurch, daß das Dosiergerät für die Färbmittelzufuhr an das Preßorgan (Preßstempel oder -schnecke) einer Verarbeitungsmaschine angeschlossen ist und die Durchsatzleistung beider in einem einstellbaren Abhängigkeitsverhältpls stehen.This object is achieved according to the invention in the coloring process of the type mentioned in that the metering device for the dye supply connected to the pressing member (ram or screw) of a processing machine and the throughput of both in an adjustable dependency ratio pls stand.

Es empfiehlt sich, auch das Dosiergerät für die Kunststoffzufuhr in Abhängigkeit.von der Durchsatzleistung des Preßorgans der Verarbeitungsmaschine arbeiten zu lassen.It is advisable to also use the dosing device for the plastic feed in Dependence on the throughput of the pressing member of the processing machine to let work.

Zwischen dem Dosiergerät für die Färbmittelzufuhr und dem Preßorgan der Verarbeitungsmaschine aknn ein automatisches Zählwerk zur Veränderung des Abhängigkeitsverhältnisses eingeschaltet sein.Between the dosing device for the dye feed and the pressing member The processing machine has an automatic counter to change the dependency ratio to be on.

Nachfolgend wird anhand der Zeichnung ein Anwendungsbeispiel des Verfahrens näher erläutert und beschrieben.An application example of the method is given below with reference to the drawing explained and described in more detail.

In der schematischen Zeichnung ist ein Mischer 1 dargestellt, in dessen Mischzone 3 das Kunststoffgranulat 2 und das an der Einlaufsteile 7 eintretende, in diesem Fall flüssige Färbemittel mittels durch den Antriebmotor 5 bewegten Rührorganen 4 gemischt werden.In the schematic drawing, a mixer 1 is shown, in which Mixing zone 3 the plastic granulate 2 and the one entering at the inlet part 7, in this case liquid colorants by means of agitators moved by the drive motor 5 4 to be mixed.

Die Dosiereinrichtung für das Kunststoffgranulat 2 besteht In dem in der Zeichnung dargestellten Fall aus einem einfachen Vorratsbehälter, der an seinem unteren Ende ein je nach dem Füllstand in dem Mischtrichter 1 selbsttätig schließende oder öffnende Verschlußkappe 9 besitzt. Die Dosierung des Kunststoffgranulats erfolgt somit in Abhängigkelt von der Durchsatzleistung des Preßorgans 10 einer nachgeschalteten Verarbeitungsmaschine 12. Das Preßorgan 10 besteht bei dem hier dargestellten Beispiel aus einer Preßschnecke mit dem Plastifizierbereich 11.The metering device for the plastic granulate 2 consists of the Case shown in the drawing from a simple storage container to its lower end a depending on the level in the mixing funnel 1 automatically closing or opening cap 9 has. The dosage of the plastic granulate thus takes place depending on the throughput of the pressing member 10 one downstream processing machine 12. The pressing member 10 is here Example shown from a press screw with the plasticizing area 11.

Das Dosiergerät 6 für die Färbmittelzufuhr kann beliebig gestaltet sein. Wesentlich ist jedoch, daß die Durchsatzleistungen dieses Dos.lergerätes 6 und der Preßschnecke 10 miteinander gekoppelt sind, so daß die Farbzugabe in Abhängigkeit vom Arbeitszyklus, d.h. von der Menge Kunststoff erfolgt, die kontinuierlich oder dlskontinuierlich ausgestoßen wird.The dosing device 6 for the dye supply can be designed in any way be. However, it is essential that the throughput of this Dos.lergerätes 6 and the press screw 10 are coupled to one another, so that the addition of paint as a function on the work cycle, i.e. on the amount of plastic that is continuously or dl is continuously ejected.

Zwischen das Dosiergerät 6 und dem Preßschneckenantrieb läßt sich ein in der Zeichnung nicht dargestelltes automatisches Zählwerk einschalten, durch welches das Abhängigkeitsverhältnis zwischen Farbzugabe und Schneckenausstoßmenge veränderbar ist. Es kann aber auch ein derartiges Dosiergerät 6 verwendet werden, daß auf veränderliche Farbzugaben eingestellt werden kann.Between the metering device 6 and the press screw drive can be turn on an automatic counter, not shown in the drawing, by which is the relationship between color addition and screw output is changeable. However, such a dosing device 6 can also be used, that can be adjusted to variable color additions.

Bei dem beschriebenen Verfahren wird jede Zwischenbunkerung des fertig eingefärbten Kunststoffgranulats vermieden, wodurch sich das gesamte Verfahren wesentlich vereinfacht und mit geringerem Aufwand vol iziehbar ist.With the method described, every intermediate bunkering of the is finished colored plastic granulate is avoided, which significantly changes the entire process is simplified and accessible with less effort.

Claims (3)

PatentansprücheClaims 1. E-infärbverfahren für Kunststoffe mit oder ohne Mischer sowie sowie Dosiergeräten für Kunststoff und Färbmittel, dadurch gekennzeichnet, daß das Dosiergerät für die Färbmittel zufuhr oder sonstige Zusätze an das Preßorgan (Preßstempel oder -schnecke) einer Verarbeitungsmaschine angeschlossen ist und die Durchsatzleistungen beider in einem einstellbaren Abhängigkeitsverhältnis stehen. 1. E-dyeing process for plastics with or without a mixer as well as well as dosing devices for plastic and coloring agents, characterized in that the Dosing device for the dye feed or other additives to the pressing element (press ram or screw) is connected to a processing machine and the throughputs both are in an adjustable dependency relationship. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß auch das Dosiergerät für die Kunststoffzufuhr in Abhängigkeit von der Durchsatzleistung des Preßorgans (Preßstempel oder -schnecke) der Verarbeitungsmaschine arbeitet 2. The method according to claim 1, characterized in that the Dosing device for the plastic feed depending on the throughput of the Pressing element (ram or screw) of the processing machine works 3. Verfahren nach Anspruch 1 und/oder Anspruch 2, dadurch gekennzeichnet, daß zwischen dem Dosiergerät für die Färbmittelzufuhr oder sonstige Zusätze und dem Preßorgan der Verarbeitungsmaschine ein automatisches Zählwerk zur Veränderung des abhängigkeitsverhältnisses eingeschaltet ist.3. Procedure according to claim 1 and / or claim 2, characterized in that between the metering device for the supply of colorant or other additives and the pressing element of the processing machine an automatic counter is switched on to change the dependency ratio is.
DE19712117588 1971-02-16 1971-04-10 Colouring plastic articles - by adding dye to the melt in the extruder Pending DE2117588A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19712117588 DE2117588A1 (en) 1971-04-10 1971-04-10 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
DE19712117588 DE2117588A1 (en) 1971-04-10 1971-04-10 Colouring plastic articles - by adding dye to the melt in the extruder

Publications (1)

Publication Number Publication Date
DE2117588A1 true DE2117588A1 (en) 1972-10-26

Family

ID=5804441

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712117588 Pending DE2117588A1 (en) 1971-02-16 1971-04-10 Colouring plastic articles - by adding dye to the melt in the extruder

Country Status (1)

Country Link
DE (1) DE2117588A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022073737A1 (en) * 2020-10-05 2022-04-14 Coperion Gmbh Device and method for processing bulk material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022073737A1 (en) * 2020-10-05 2022-04-14 Coperion Gmbh Device and method for processing bulk material

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