EN 12877-2:1999

Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 2: Determination by injection moulding

This part of EN 12877 describes a method for determining the colour stability of colouring materials under defined conditions in plastics by injection moulding. The result of the determination is a relative value, not an absolute one. The method is applicable for testing colouring materials in thermoplastics that are processible by injection moulding.

Farbmittel in Kunststoffen - Bestimmung der Beständigkeit der Farbe gegen Hitze beim Verarbeiten von Farbmitteln in Kunststoffen - Teil 2: Bestimmung durch Spritzgießen

Dieser Teil von EN 12877 beschreibt ein Verfahren zur Bestimmung der Beständigkeit der Farbe von Farbmitteln in Kunststoffen durch Spritzgießen unter definierten Bedingungen. Das Ergebnis der Bestimmung ist ein relativer und kein absoluter Wert. Das Verfahren wird hauptsächlich zum Prüfen von Farbmitteln in thermoplastischen Kunststoffen angewendet, die durch Spritzgießen verarbeitbar sind.

Matières colorantes dans les plastiques - Détermination de la stabilité de la couleur à la chaleur au cours de la mise en oeuvre des matières colorantes dans les plastiques - Partie 2: Détermination par moulage-injection

Cette partie de l'EN 12877 décrit une méthode servant à déterminer la stabilité de la couleur des matières colorantes dans des conditions définies, dans les plastiques mis en oeuvre par moulage-injection. Le résultat obtenu est une valeur relative et non une valeur absolue. La méthode s'applique à l'évaluation des matières colorantes dans les thermoplastiques pouvant être mis en oeuvre par moulage par injection.

Sredstva za obarvanje v polimernih materialih - Določevanje barvne stabilnosti na vročino med predelovanjem sredstev za obarvanje v polimernih materialih - 2. del: Določevanje z oblikovanjem vbrizga

General Information

• Status: Published
• Publication Date: 19-Oct-1999
• ICS: 83.040.30 - Auxiliary materials and additives for plastics
• Technical Committee: CEN/TC 298 - Pigments and extenders
• Drafting Committee: CEN/TC 298/WG 1 - Colouring materials in plastics
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 21-Aug-2024
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12877-2:2001 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 2: Determination by injection moulding

Relations

• Parent: EN 12877-1:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 1: General introduction
• Effective Date: 24-Dec-2008
• Child: EN 12877-1:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 1: General introduction
• Effective Date: 22-Dec-2008
• Child: EN 12877-3:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 3: Determination by oven test
• Effective Date: 22-Dec-2008
• Child: EN 12877-4:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling
• Effective Date: 22-Dec-2008

Overview

EN 12877-2:1999 is a European standard developed by CEN that specifies a method to determine the colour stability of colouring materials in plastics during heat exposure in processing. This standard focuses on assessing colour changes when thermoplastic materials containing colouring agents are processed by injection moulding. It provides a relative measurement of colour stability under defined thermal conditions, helping manufacturers ensure consistent quality and performance of coloured plastic products.

Key Topics

• Colour Stability Testing: Evaluates how colouring materials in plastics withstand heat during injection moulding without significant colour degradation.
• Injection Moulding Process: Uses defined conditions relevant to industrial injection moulding to simulate realistic processing environments.
• Thermoplastics Focus: Applicable specifically to thermoplastics which are widely used in various industries for their recyclability and versatility.
• Relative Value Measurement: Produces relative data on colour stability rather than absolute values, supporting comparative assessments between materials.
• Standardized Methodology: Provides a repeatable testing protocol to ensure consistent and reliable results across different laboratories and production settings.

Applications

The EN 12877-2:1999 standard is essential for industries that rely on coloured thermoplastic components and require assurance of colour quality during manufacturing. Key application areas include:

• Automotive Industry: Ensuring the colour stability of plastic parts such as dashboards, trims, and housings which face heat during moulding.
• Consumer Goods: Maintaining attractive and durable colour finishes on plastic products like housings for electronics, appliances, and toys.
• Packaging: Verifying that coloured thermoplastic packaging retains its aesthetic and functional properties post-processing.
• Material Development: Helping manufacturers of colouring agents and additives validate heat resistance properties for improved product formulations.
• Quality Control: Supporting process engineers and quality assurance teams in verifying product conformity and identifying issues early in production.

Related Standards

For comprehensive evaluation and control of colouring materials and plastics processing, EN 12877-2:1999 can be used alongside other relevant standards:

• EN 12877-1 - General methods for determination of colour stability in plastics during heat processing.
• ISO 11341 - Plastics - Colour measurement, which complements colour evaluation.
• ISO 2896 - Plastics - Determination of resistance to heat and fire, relevant for combined performance assessments.
• ISO 1043 Series - Plastics symbols and terminology related to additives and colouring agents.
• EN ISO 187 - Plastics - Preparation of test specimens by moulding.

By integrating EN 12877-2:1999 into quality and material research protocols, manufacturers and laboratories can ensure that colouring materials used in injection-moulded thermoplastics meet stringent performance criteria for colour stability under thermal stress, enhancing product reliability and customer satisfaction.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Farbmittel in Kunststoffen - Bestimmung der Beständigkeit der Farbe gegen Hitze beim Verarbeiten von Farbmitteln in Kunststoffen - Teil 2: Bestimmung durch SpritzgießenMatieres colorantes dans les plastiques - Détermination de la stabilité de la couleur a la chaleur au cours de la mise en oeuvre des matieres colorantes dans les plastiques - Partie 2: Détermination par moulage-injectionColouring materials in plasti
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