ISO 7769:2009 PDF

Name: ISO 7769:2009 — Textiles — Test method for assessing the appearance of creases in fabrics after cleansing
SKU: ISO 7769:2009
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Textiles — Test method for assessing the appearance of creases in fabrics after cleansing

Название (английский):

ISO 7769:2009

Textiles — Test method for assessing the appearance of creases in fabrics after cleansing

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 12 мая 2009 г.
Издание:: ISO IS 7769 edition 4 version 1
ICS:: 59.080.30

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Описание (английский):

ISO 7769:2009 specifies a test method for evaluating the retention of pressed-in creases in fabrics after one or several cleansing treatments. A technique for inserting creases is not included as this is controlled by fabric properties. This method has been developed for use primarily with type B domestic washing machines, as defined in ISO 6330, in the cleansing process. However, it may be possible to use it with type A machines, as defined in the same International Standard.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 7769:2009 - Textiles - Test method for assessing the appearance of creases in fabrics after cleansing - specifies a comparative laboratory method to evaluate how well pressed-in creases in fabrics are retained after one or more cleansing cycles. The method is designed primarily for use with type B domestic washing machines (ISO 6330) but can also be applied to professional cleaning procedures. Results are reported as a crease appearance rating using ISO plastic crease replicas (CR‑1 to CR‑5) and averaged across multiple observers.

Key topics and requirements

Scope: Evaluation of pressed-in crease retention after cleansing; the technique for inserting creases is not included.

Specimens: Three test specimens, 38 cm × 38 cm, pinked to prevent fraying, each with a central press-in crease.

Cleansing cycles: Use a specified domestic (ISO 6330) or professional (ISO 3175) procedure; repeat up to five cycles if required.

Conditioning: Specimens conditioned 4–24 hours according to ISO 139, hung by two corners with crease vertical or clamped full-width.

Lighting & viewing: Darkened room with two cool‑white fluorescent lamps, a 500 W side flood lamp with shield, and a grey viewing board matched to ISO 105‑A03 (Grey scale No. 2); side reflections should be eliminated (black walls or blackout curtains).

Comparison standard: Plastic 3D crease replicas (CR‑1 to CR‑5); Annex B provides a digital description of replicas.

Assessment: Three independent observers rate each specimen; ratings may be given in half‑unit increments. Average the nine observations and report to the nearest 0.5 rating per Table 1 scale.

Reporting: Include reference to ISO 7769:2009, sample details, cleansing procedure and cycles, crease rating, and any deviations.

Practical applications

Quality control and acceptance testing for apparel, home textiles and technical fabrics to verify crease resistance after laundering.

R&D comparison of fabric constructions, finishes (e.g., wrinkle‑resistant treatments), and care instructions.

Lab verification of supplier claims on laundering performance and consumer care labeling.

Inter-laboratory comparisons and method harmonization (Annex A discusses precision and observer variability).

Related standards

ISO 6330 - Domestic washing and drying procedures for textile testing

ISO 3175 - Professional care (drycleaning/wetcleaning)

ISO 139 - Standard atmospheres for conditioning and testing

ISO 105‑A03 - Grey scale for assessing staining

Keywords: ISO 7769:2009, crease assessment, textile testing, crease appearance rating, laundering, ISO 6330, ISO 3175, plastic crease replicas.

ISO 7769:2009 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications

Who uses this standard

Related standards

Технические детали

SIST EN ISO 6330:2022

Textiles - Domestic washing and drying procedures for textile testing (ISO 6330:2021)

SIST EN ISO 3175-5:2019

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BS EN ISO 13904:2016

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BS EN ISO 10565:1998

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