Category Archives: AATCC

AATCC 172-2016

Colorfastness to Powdered Non-Chlorine Bleach in Home Laundering

Published by: 2016-01-01 / 2016-01-01 / 4 pages
1. Purpose and Scope

1.1 This test method is designed to evaluate the colorfastness to powdered non-chlorine bleach in home laundering of textiles which are expected to withstand frequent laundering. The fabric color changes resulting from powdered non-chlorine bleach, detergent solution and abrasive action of five home launderings are evaluated.
1.2 First establish the level of performance with powdered non-chlorine bleach and if an effect is found, then retest with detergent alone. It may be necessary to use a water only wash to separate the effects of components like hardness, pH or chlorine content.
1.3 Since the powdered non-chlorine bleaches currently available contain ingredients other than the powdered non-chlorine bleach; such as fluorescent whitening agents, bluing, etc., it is the total effect of these chemicals on the color change that is being evaluated.

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AATCC 142-2016

Appearance of Flocked Fabrics after Repeated Home Laundering and/or Coin-Op Drycleaning

Published by: 2016-01-01 / 2016-01-01 / 4 pages
1. Purpose and Scope

1.1 This test method covers a procedure for evaluating the durability of flocked fabric to home laundering or coin-op drycleaning with the use of flock loss and appearance at the edgewear areas of simulated pant leg specimens as the criteria.

2. Principle

2.1 Simulated pant leg specimens prepared as described are laundered or drycleaned and then evaluated for appearance and durability.

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AATCC 185-2016

Chelating Agents: Percent Content in Hydrogen Peroxide Bleach Baths; Copper PAN Indicator Method

Published by: 2016-01-01 / 2016-01-01 / 3 pages
1. Purpose and Scope

1.1 This test method measures the chelating agent content in a hydrogen peroxide bleach solution.
1.2 The method is designed to permit routine or periodic titration of the peroxide saturator section of a plant preparation range, or other prepared peroxide bleach solutions, to determine the concentration of chelating agent present.
1.3 The method is restricted to chelating agents based on ethylenedianietetraacetic acid (EDTA), N-hydroxyethylenediamenetriacetic acid (HEDTA), and diethylenetriaminepentaacetic acid (DTPA). This includes any proprietary products ( referred to herein as “product”) containing possible multiple ingredients, one or more of which may be chelating agents.

2. Principle

2.1 The percent chelating agent or product in the hydrogen peroxide bleach bath is determined in two steps: first, a direct titration of the chelating agent or product using a known concentration of copper sulfate in the presence of an indicator (PAN, 1-(2-pyridylazo)-2-naphthol), and second, a similar titration of the bleach solution containing the chelating agent using a more dilute concentration of copper sulfate as the titrant.

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AATCC 93-2016

Abrasion Resistance of Fabrics: Accelerotor Method

Published by: 2016-01-01 / 2016-01-01 / 4 pages
1. Purpose and Scope

1.1 This test method is intended for evaluating the resistance of fabrics and other flexible materials to abrasion.

2. Principle

2.1 An unfettered fabric specimen is driven by an impeller (rotor) along a zigzag course in a generally circular orbit within a cylindrical chamber, so that it repeatedly impinges on the walls and abradant liner of the chamber while at the same time being continually subjected to extremely rapid, high velocity impacts. The specimen is subjected to flexing, rubbing, shock, compression, stretching and other mechanical forces during the test. Abrasion is produced throughout the specimen by rubbing of yarn against yarn, fiber against fiber, surface against surface and surface against abradant.

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AATCC 157-2016

Colorfastness to Solvent Spotting: Perchloroethylene

Published by: 2016-01-01 / 2016-01-01 / 2 pages
1. Purpose and Scope

1.1 This test method is designed to measure the degree of color migration that occurs when a fabric is spotted with a drycleaning solvent.
1.2 Perchloroethylene is used because it is a common drycleaning solvent.

2. Principle

2.1 A specimen, attached to a piece of white blotting paper, is placed specimen side up on a glass plate. Perchloroethylene is placed on the center of the specimen. The test is carried out at room temperature. The staining of the blotting paper is evaluated.

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AATCC 134-2016

Electrostatic Propensity of Carpets

Published by: 2016-01-01 / 2016-01-01 / 5 pages
1. Purpose and Scope

1.1 This test method assesses the static-generating propensity of carpets developed when a person walks across them. This method uses controlled laboratory simulation of conditions, that may be encountered in use. The simulation is focused on the use of those conditions, which are known from experience to be strong contributors to excessive accumulation of static charges.
1.2 This test method does not include standards of performance. The specification requirements pertinent to any given application can vary considerably, depending on the specific demands of the application.

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AATCC 81-2016

pH of the Water-Extract from Wet Processed Textiles

Published by: 2016-01-01 / 2016-01-01 / 2 pages
1. Purpose and Scope

1.1 This test method determines the pH of wet processed textiles.
1.2 To make a quantitative determination, the chemicals which influence pH must be removed from the textile specimen, collected as a water extract and then accurately measured by a pH meter.

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AATCC 82-2016

Fluidity of Dispersions of Cellulose from Bleached Cotton Cloth

Published by: 2016-01-01 / 2016-01-01 / 4 pages
1. Purpose and Scope

1.1 The test procedures in this test method are applicable to bleached, unfinished cotton cloth. The fluidity of a dispersion of bleached cellulose fibers in cupriethylene diamine solvent is a sensitive measure of the degradation of the cellulose resulting from the action of acids, alkalis, oxidizing or reducing agents. It is therefore useful in determining the completeness of the bleaching treatment to which the cloth has been subjected, as well as the effect of chemical treatments on the tensile strength of the cloth. (Fluidity of dispersions in cuprammonium hydroxide has been dropped from this test method.)

2. Principle

2.1 The length of chain of cellulose molecules is decreased when treated with acid, alkali, oxidizing or reducing agents, etc. The severity of the treatment determines the extent of the shortening of the cellulose chain and the fluidity, or ease of flow, of a dispersion of the cellulose in the solvents.

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AATCC 86-2016

Drycleaning: Durability of Applied Designs and Finishes

Published by: 2016-01-01 / 2016-01-01 / 3 pages
1. Purpose and Scope

1.1 This test method indicates the effect of repeated drycleanings on the durability of applied-design or finish on textiles and other materials. It is also applicable for evaluating the durability of applied design materials and finishing agents manufactured for the use on fabrics and other products intended for apparel and household use which are renovated in consumer service by commercial drycleaning procedures. This test method is to be used for evaluating the resistance of colors to spot and stain removal procedures used by the drycleaner.
1.2 This test method is not intended for evaluating colorfastness to drycleaning. For colorfastness properties use AATCC Test Method 132, Colorfastness to Drycleaning.

2. Principle

2.1 A specimen is agitated in a solution of solvent and drycleaning detergent with steel balls to simulate the kind of mechanical action that occurs in a drycleaning machine. A large specimen is provided to produce a correlation with commercial conditions.

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AATCC 205-2016

Carpet: Liquid Penetration by Spillage

Published by: 2016-01-01 / 2016-01-01 / 3 pages
1. Purpose and Scope

1.1 This test method is intended to simulate the actual use of carpets in the field, and evaluates the propensity of the face and back of carpets to be penetrated by a spilled liquid.
1.2 Unless specifically agreed by interested parties, this method is not intended for the evaluation of seams/joints of the carpet. This test method is used to evaluate whether or not a carpet (face and backing) is penetrated by a spilled liquid through the carpet face and backing. The method does not assess seams/joints unless reported. This method is intended to simulate the actual use of carpet in the field.

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