1、BRITISH STANDARD CONFIRMED JULY 1993 BS 5377-1: 1988 ISO 2267:1986 Assessment of laundering effects by means of a cotton control cloth Part 1: Specification for preparation and use of the cotton control cloth ISO title: Surface active agents Evaluation of certain effects of laundering Methods of pre
2、paration and use of unsoiled cotton control cloth UDC 648.2:677.016.1/.6BS5377-1:1988 This British Standard, having been prepared under the directionof the Chemicals Standards Committee, was published under the authority ofthe Board of BSI and comesintoeffect on 30 June 1988 BSI 09-1999 First publis
3、hed July 1976 First revision June 1988 The following BSI references relate to the work on this standard: Committee reference CIC/38 Draft for comment 87/53357 DC ISBN 0 580 16683 X Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Chemical
4、s Standards Committee (CIC/-) to Technical Committee CIC/38, upon which the following bodies were represented: British Hotels and Restaurants and Caterers Association Carpet Cleaners Association Chemical Industries Association Consumer Policy Committee of BSI Department of Trade and Industry (Labora
5、tory of the Government Chemist) Fabric Care Research Association Home Laundering Consultative Council International Wood Secretariat National Federation Consumer Groups Soap and Detergent Industry Association Society of Dyers and Colourists Amendments issued since publication Amd. No. Date of issue
6、CommentsBS5377-1:1988 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii 0 Introduction 1 1 Scope and field of application 1 2 References 1 3 Definitions 1 4 Principle 2 5 Cotton control cloth 2 6 Test pieces 4 7 Use of test pieces 5 Figure 1 Method of taking
7、test pieces from the control cloth 7 Figure 2 Method of taking specimens from the test piece (Figure 1) 7 Publications referred to Inside back coverBS5377-1:1988 ii BSI 09-1999 National foreword This Part of BS 5377 has been prepared under the direction of the Chemicals Standards Committee. It is id
8、entical with ISO2267:1986 “Surface active agents Evaluation of certain effects of laundering Methods of preparation and use of unsoiled cotton control cloth”, published by the International Organization for Standardization (ISO). The first edition of BS 5377-1, which was published in1976, was identi
9、cal with the first edition of ISO2267, which was published in1972. This revision supersedes the1976 edition of BS5377-1, which is withdrawn. The differences between the two editions are largely editorial, although several minor technical changes have been introduced. Terminology and conventions. The
10、 text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. The comma has been used as a dec
11、imal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. The symbol “l” has been used to denote litre (and in its submultiples). In British Standards it is current practice to use the symbol “L”. Wherever the words “International Standard” a
12、ppear, referring to this standard, they should be read as “Part of BS5377”. A British Standard related to ISO2:1973 is BS946:1970 “Method for the designation of yarns”. A British Standard related to ISO5081:1977 is BS2576:1986 “Method for determination of breaking strength and elongation (strip meth
13、od) of woven fabrics”. The constant rate of extension method given in BS2576 is the method used in the UK, and it is technically equivalent to the constant rate of extension method given in ISO5081:1977. There are no corresponding British Standards for ISO862:1984 and ISO2174:1979. The Technical Com
14、mittee has reviewed the provisions of these standards and decided that they are acceptable for use in conjunction with this standard. Cross-references International Standard Corresponding British Standard ISO 1144:1973 BS 947:1970 Specification for a universal system for designating linear density o
15、f textiles (Tex system) (Technically equivalent) ISO 1973:1976 BS 2016:1973 Methods for the determination of the linear density of textile fibres: gravimetric methods (Technically equivalent) ISO 2061:1972 BS 2085:1973 Method of test for determination of twist in yarns, direct counting method (Techn
16、ically equivalent) ISO 3801:1977 BS 2471:1978 Methods of test for textiles woven fabrics determination of mass per unit length and mass per unit area (Identical) ISO 4312:1979 BS 5377 Specification for assessment of laundering effects by means of a cotton control cloth Part 2:1980 Method of analysis
17、 and test for the unsoiled cotton control cloth (Identical) ISO 7211-2:1984 BS 2862:1984 Methods for determination of number of threads per unit length (Identical)BS5377-1:1988 BSI 09-1999 iii Additional information. The unsoiled cotton control cloth mentioned in clause1 is obtainable from the Fabri
18、c Care Research Association, Forest House Laboratories, Knaresborough Road, Harrogate, North Yorkshire, HG2 7LZ. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Brit
19、ish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, pages1to8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorp
20、orated. This will be indicated in the amendment table on the inside front cover.iv blankBS5377-1:1988 BSI 09-1999 1 0 Introduction The quality of laundering for household textile articles may be assessed in two different ways, depending on whether the cleaning effect, or the conservation of the init
21、ial characteristics of cloth subjected to repeated laundering, is under consideration. In the first case, some tests may be carried out on the articles themselves, which may be re-used. However, for measurement of greying and yellowing, it is essential to use unsoiled control cloths. Furthermore, as
22、 the measurement of certain characteristics of the household textile articles, particularly their mechanical properties, entails the destruction of samples, it is quite impossible to perform these tests on household textile articles which are in use. It has therefore been proposed to define the harm
23、lessness of a laundering process on household textile articles by reference to the behaviour of control material treated in the same way at the same time as the cloth washed in the normal manner. Since the behaviour of household textile articles in use is influenced by many and complex factors, and
24、depends to a large extent on the yarn linear density of the cloth, it is necessary, in order to obtain satisfactory reproducibility of the results, to standardize all matters relating to the preparation of the control cloth, and to its use. In this International Standard, the characteristics of the
25、control cloth are defined with the greatest possible precision, and its use is standardized. The test methods to be applied to the control cloth before and after use are described in ISO4312. 1 Scope and field of application This International Standard specifies the characteristics of a cotton mater
26、ial and the preliminary treatments which are to be applied to it in order to make it an unsoiled cotton control cloth 1)for the testing of certain effects of laundering. It also defines the conditions of use of this control cloth (in the form of control test pieces) during the laundering processes w
27、hich are being tested from the point of view of the conservation of the original characteristics of the cloth. The unsoiled cotton control cloth is primarily intended to enable the laundering of white cloth to be tested. It may be used with all detergents and all types of domestic or industrial mach
28、ines designed to wash, hydroextract and dry household textile articles. The unsoiled cotton control cloth may also be used for testing the laundering of other categories of textile articles (coloured for example). 2 References ISO 2, Textiles Designation of the direction of twist in yarns and relate
29、d products. ISO 862, Surface active agents Glossary. ISO 1144, Textiles Universal system for designating linear density (Tex system). ISO 1973, Textile fibres Determination of linear density Gravimetric method. ISO 2061, Textiles Determination of twist in yarns Direct counting method. ISO 2174, Surf
30、ace active agents Preparation of water with known calcium hardness. ISO 3801, Textiles Woven fabrics Determination of mass per unit length and mass per unit area. ISO 4312, Surface active agents Evaluation of certain effects of laundering Methods of analysis and test of unsoiled cotton control cloth
31、. ISO 5081, Textiles Woven fabrics Determination of breaking strength and elongation (Strip method). ISO 7211-2, Textiles Woven fabrics Construction Method of analysis Part2:Determination of number of threads per unitlength. 3 Definitions 3.1 laundering process all the operations carried out during
32、laundering. These may comprise soaking one or more washes bleaching one or more rinses hydroextraction drying calendering, pressing or ironing. 1) The names and addresses of the suppliers of unsoiled cotton control cloth complying with this International Standard may be obtained from the Secretariat
33、 of ISO/TC91 (AFNOR) or from the Central Secretariat.BS5377-1:1988 2 BSI 09-1999 3.2 detergent a product specially formulated for cleaning through the process of detergency 2) NOTEA detergent comprises essential components (surface active agents) and, generally, complementary components (builders, e
34、tc.). 3.3 normally soiled household textile articles an average sample of the articles which are washed in the usual way and which present an average degree of soiling resulting from normal use NOTEThe qualitative and quantitative variability of soiling in household textile articles which have been
35、washed in the normal way, depending on the circumstances of place and time, makes it impossible to define a standard soiled article or cloth which would be suitable in all cases. this variability, which cannot be avoided, does not, nevertheless, prevent meaningful results being obtained if appropria
36、te statistical methods are used although the nature of the soil affects the behaviour during laundering of the cloth of which the articles are made, the control cloth will be affected in the same way because part of the soil is redeposited on it during washing. As a result, the conclusions arrived a
37、t from the application of this International Standard will depend, to some extent, on what constitutes normally soiled articles in the particular circumstances which are of interest to the user of this International Standard if it is necessary, for certain tests, to use soiled articles which do not
38、conform to this definition, this shall be specifically mentioned in the test report relating to the methods of test 3.4 unprepared control cloth undyed cloth provided by the textile industry for the preparation of the control cloth and having certain specified characteristics, so that it can provide
39、 a control conforming to the requirements 3.5 control cloth unprepared control cloth which has been subjected to a given number of preparatory treatments under defined conditions in order to bring its essential characteristics to specified initial values 4 Principle A given number of test pieces of
40、control cloth and machine loads of normally soiled articles are together subjected to a given number of consecutive laundering processes. After these processes, characteristic properties of the test pieces of control cloth are measured and compared with their initial values. The changes in these pro
41、perties during washing should enable the causes of damage in household textile articles in the laundering process to be detected. 5 Cotton control cloth 5.1 Characteristics and requirements The methods of analysis and test to be used to determine the characteristics and requirements and also the des
42、ignations are described in ISO2, ISO1144, ISO1973, ISO2061, ISO3801, ISO4312, ISO5081 and ISO7211-2. 5.1.1 Unprepared control cloth The cloth provided by the textile industry shall be selected in such a way that, after having been subjected to the preparatory treatments (see5.2), it has the characte
43、ristics defined in5.1.2. The unbleached yarn to be used for both warp and weft shall comply with the following requirements: nature: pure cotton, minimum commercial length27mm (see note1); linear density: single yarn30 2 tex; twist: Z700 25. The width, mass, yarn linear density, and warp strength sh
44、all be such that it is possible to obtain the values laid down for the control cloth (5.1.2), allowing for dimensional variations. The latter occur either during any treatment aimed at giving dimensional stability or during preparatory treatment. They are usually of the order of3 to8% in the warp an
45、d1 to5% in the weft for stabilized cloth “direct from the loom”. The unprepared control cloth shall also comply with the following requirements: it shall have a plain weave; it shall have been completely desized and shall not contain any fluorescent whitening agent revealed by inspection under ultra
46、violet light; it shall have been boiled and laundered in such a way that the fluidity value of the cotton is less than50 (Pas) 1or its degree of polymerization greater than1600 (after boiling for1h in a1% sodium hydroxide solution without being allowed to come into contact with the air); it shall ha
47、ve been boiled and laundered in such a way that the degree of radiance (percentage) of the cloth is greater than86. 2) See ISO862.BS5377-1:1988 BSI 09-1999 3 NOTE 1It is important to verify that the control cloth consists of cotton only, and contains no other fibre whatsoever. A microscopic examinat
48、ion of the constituent fibres is recommended. NOTE 2It is desirable, but not essential, for the cloth to have a certain number of coloured warp, and possibly also weft, threads, dyed with a fast dye, or white threads of a larger linear mass, or double threads, which indicate: the surface area of eac
49、h test piece (seeFigure 1); within this area, the area of the specimens to be used for the measurement of tensile strength (seeFigure 2). This will facilitate the cutting of both test pieces and specimens. Allowance should be made, when determining the dimensions of these, for the dimensional variations envisaged during the preliminary treatments. It is also desirable for the two selwedges to be different, so that the two sides of the material can be identified. 5.1.2 Control cloth The unpr
