ISO 105-Z07:1995 PDF

Name: ISO 105-Z07:1995 — Textiles — Tests for colour fastness — Part Z07: Determination of application solubility and solution stability of water-soluble dyes
SKU: ISO 105-Z07:1995
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Textiles — Tests for colour fastness — Part Z07: Determination of application solubility and solution stability of water-soluble dyes

Название (английский):

ISO 105-Z07:1995

Textiles — Tests for colour fastness — Part Z07: Determination of application solubility and solution stability of water-soluble dyes

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 1 июня 1995 г.
Издание:: ISO IS 105 edition 1 version 1
ICS:: 59.080.01

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Описание (английский):

Describes a method for the determination of the application solubility of water-soluble dyes in the range 40 °C to 90 °C and of their solution stability. The method is not intended to measure absolute solubility.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 105‑Z07:1995 - Textiles - Tests for colour fastness - Part Z07: Determination of application solubility and solution stability of water‑soluble dyes - defines a practical laboratory method to determine the application solubility of water‑soluble dyes (typically between 40 °C and 90 °C) and to assess their solution stability. The method identifies the concentration at which dye residues appear on a heated, pre‑warmed Nutsch (Büchner) filter and uses visual assessment and flow‑through time as evaluation criteria. It is explicitly not intended to measure absolute solubility.

Key topics and technical requirements

Scope: Determination of application solubility limits and short‑term solution stability of water‑soluble dyes; typical test temperature is 90 °C but lower temperatures may be used per manufacturer guidance.

Principle: Prepare a series of dye solutions of known concentration, heat with stirring, filter at the test temperature, and evaluate filter residues and flow‑through time.

Apparatus and reagents: includes wide‑mouthed Erlenmeyer (500 ml), thermostatically controlled heating bath with magnetic stirrer (500–600 r/min), heatable Nutsch filter (≈70 mm ID), vacuum apparatus (3–4 kPa during filtration), circular filter papers (70 mm ±2 mm), and grade 3 laboratory water (ISO 3696).

Procedure highlights:

Preheat filter and equipment to test temperature to avoid thermal shock.
Stir solutions for specified times (e.g., total ~10 min when preparing at 90 °C) before immediate filtration.
For solution stability, store prepared solution at the storage temperature for 2 hours, mix and then filter.
Evaluate visually for residues; use sudden increases in flow‑through time as an additional indicator of exceeded solubility or instability.

Test reporting: include ISO reference, dye identification, filter type/manufacturer, solubility limit (g/L) with dissolving temperature, solution stability (g/L) with storage/dissolving temperatures, flow‑through times, observations and any deviations.

Applications and users

Who uses it: textile dye manufacturers, dye formulators, quality control and testing laboratories, textile chemists, and compliance officers concerned with dye application performance and process control.

Practical uses:

Verify suitable dye concentrations and application temperatures for manufacturing recipes.
Screen dyes for process stability (preventing precipitation during storage or heating).
Support troubleshooting of dyeing process issues related to undissolved residues, filtration problems, or inconsistent colour delivery.
Provide documented solubility limits for quality specifications and supplier declarations.

Related standards

ISO 105 series (colour fastness tests) - general context for textile dye testing.

ISO 1773 (laboratory glassware - boiling flasks) and ISO 3696 (water for analytical laboratory use) referenced for apparatus and reagents.

Keywords: ISO 105‑Z07, textiles, colour fastness, water‑soluble dyes, dye solubility, solution stability, application solubility, Nutsch filter, dye testing, ISO 105.

ISO 105-Z07:1995 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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