Detail of GB/T 19981.3-2009

Introduction of GB/T 19981.3-2009

1 Scope This Part of GB/T 19981 specifies drycleaning procedures for hydrocarbon solvents, using commercial drycleaning machines, for fabrics and garments. It comprises procedures for normal and sensitive materials (see Article 3.3 and Article 3.4). When using commercial drycleaning equipment, national regulations and normal safety precautions should be observed. 2 Normative References The following normative documents contain provisions which, through reference in this Part of GB/19981 constitute provisions of this Part. For dated reference, subsequent amendments (excluding amending errors) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies. GB/T 6529 Textiles - Standard Atmospheres for Conditioning and Testing (GB/T 6529-2008, ISO 139: 2005, MOD) GB/T 8685 Textiles - Care Labeling Code Using Symbols(GB/T 8685-2008, ISO 3758: 2005, MOD) GB/T 19981.1 Textiles - Professional Care, Drycleaning and Wetcleaning of Fabrics and Garments - Part 1: Assessment of Performance after Cleaning and Finishing (GB/T 19981.1 2005, ISO 3175-1: 1998, MOD) 3 Terms and Definitions For the purposes of this Part of GB/T 19981, the following terms and definitions apply. 3.1 Materials Fabrics, garments or composites 3.2 Composite test specimen Test specimen consisting of all component parts used in the finished item, and combined in a representative assembly 3.3 Normal materials Materials that are able to withstand the normal drycleaning process as specified in this Part of GB/T 19981 without modification 3.4 Sensitive materials Materials that may require restrictions as to mechanical action and/or drying temperatures and/or water additions Example: Acrylics, silk, crepe, chlorofibre, modacrylic, novelty tweeds, angora. Note: Giving careful consideration to the comments on progressive change made in the Introduction, textile items that perform satisfactorily for purpose in the procedures intended for normal and sensitive materials, listed in Table 1, may be labeled with the ○F and ○F symbols respectively, as described in GB/T 8685. 4 Principle The specimen, or specimens, are drycleaned in a commercial drycleaning machine and finished according to one of the specified procedures. This process is a precursor to the assessment of the cleaned specimen in accordance with GB/T 19981.1. 5 Reagents 5.1 Hydrocarbon solvents Hydrocarbon solvents used for drycleaning are aliphatics (CnH2n-2; n=10~12) or iso- and cyclo-aliphatics, flashpoint W 38 °C, boiling range 150 °C to 210 °C. 5.2 Detergent Cocofattyaciddiethanolamlde Note: In order to prevent foaming, it is important to use redistilled, clean solvent solution and not overfill the still.

Contents of GB/T 19981.3-2009

Foreword I Introduction II 1 Scope 2 Normative References 3 Terms and Definitions 4 Principle 5 Reagents 6 Apparatus and Materials 7 Conditioning 8 Test Specimen 9 Procedure 10 Test Report