1、BRITISH STANDARD BS 6246-5: 1991 Industrial laundry machinery Part 5: Methods for the assessment of the effect of shaped garment finishing machinery on textilesBS6246-5:1991 This British Standard, having been prepared under the directionof the Textiles and Clothing Standards Policy Committee, was pu
2、blished underthe authority of the Standards Board and comes intoeffect on 30 September 1991 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference TCM/25 Draft for comment 89/42263 DC ISBN 0 580 19589 9 Committees responsible for this British Standard The p
3、reparation of this British Standard was entrusted by the Textiles and Clothing Standards Policy Committee (TCM/-) to Technical Committee TCM/25, upon which the following bodies were represented: Association of Manufacturers of Domestic Electrical Appliances British Interlining Manufacturers Associat
4、ion British Retailers Association British Textile Confederation Home Laundering Consultative Council International Wool Secretariat Lambeg Industrial Research Association Ministry of Defence Soap and Detergent Industry Association Textile Research Council (FCRA) Textile Research Council (HATRA) The
5、following bodies were also represented in the drafting of the standard, through subcommittees and panels: Department of Health Health and Safety Executive Institute of Hospital Engineering Textile Services Association Ltd. Amendments issued since publication Amd. No. Date CommentsBS6246-5:1991 BSI 1
6、2-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 Apparatus 1 4 Test articles 2 5 Preliminary procedures 2 6 Determination of moisture removal by a polished head press 3 7 Energy consumption evaluation of a polished head press 4 8 Energy consump
7、tion of tunnel finishing machines 6 9 Determination of quality of finish by tunnel finishing machines 7 10 Test report 8 Appendix A Shaped-garment finishing machinery 9 Appendix B Crease inducing device (CID) 13 Appendix C Description and installation of specialized test apparatus 19 Appendix D View
8、ing equipment and procedure 19 Appendix E Garment test articles 23 Appendix F Pro forma test report 27 Appendix G Wash process 28 Figure 1 Format of temperature profile matrix 4 Figure 2 Scissor press 10 Figure 3 Upstroke head press 11 Figure 4 Rotary buck press 11 Figure 5 Cabinet press 12 Figure 6
9、 Tunnel finisher 13 Figure 7 Crease inducing device 16 Figure 8 Heated tank 17 Figure 9 Test arrangement for condensate measurement 18 Figure 10 Viewing rig 21 Figure 11 Wire hanger detail 22 Figure 12 Viewing arrangement 23 Figure 13 Garment test article 25 Table 1 Format for recording details of m
10、oisture removal 3 Table 2 Components of CID and recommended materials of construction 15 Table 3 Garment measurements 26 Publication(s) referred to Inside back coverBS6246-5:1991 ii BSI 12-1999 Foreword This Part of BS6246 has been prepared under the direction of the Textiles and Clothing Standards
11、Policy Committee. The rapid technical development of laundry machinery and the changes in the pattern of purchasing have led to the need for a standard means of assessment of the effect of machine performance on textiles. It has therefore become necessary to draw up standard methods of test for rati
12、ng or assessing the performance of the principal types of industrial laundry machinery. The following two different approaches to the provision of the necessary information have been considered: a) verification of the claims made by the manufacturer on the performance of the machine, using condition
13、s arbitrarily agreed between the manufacturer and the user; b) preparation of standard methods of test for rating and assessing the performance of the principal types of machines, so that the test results obtained on machines of similar type could be compared directly wherever the machines were loca
14、ted and whenever they were tested. It was agreed to adopt the second of these options in the preparation of the various Parts ofBS6246 since the need was for procedures that could be used on a range of machines to evaluate their performance under reproducible conditions, including specification of t
15、he loads to be used. No performance level is set. Thus, it will be possible to compare the basic performance of one machine against another and of a machine against a specification quoted in a contract. Another advantage in the approach adopted is that the tests can be conducted at any location wher
16、e the necessary services are available. BS 6426 is published in five Parts as follows: Part 1: Methods for the assessment of the effect of rotary washing machines on textiles; Part 2: Methods for the assessment of the effect of extracting machines on textiles; Part 3: Methods for the assessment of t
17、he effect of flatwork ironing machines on textiles; Part 4: Methods for the assessment of the effect of batch drying tumblers on textiles; Part 5: Methods for the assessment of the effect of shaped garment finishing machines on textiles. It is hoped that with the advances of techniques, and widespre
18、ad use of this British Standard, updated methods can be incorporated. The tests will generally be conducted within an operating laundry and require the use of equipment other than that which is normally available. Particular attention is drawn to the care necessary in the organization of these test
19、procedures. Adequate provision should be made for the time that will be taken and the procedural rehearsal. 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 British S
20、tandard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 to 28, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incor
21、porated. This will be indicated in the amendment table on the inside front cover.BS6246-5:1991 BSI 12-1999 1 1 Scope This Part ofBS6246 describes methods of assessing the effects on textiles of shaped-garment finishing machinery; the types of finishing machinery covered by this standard are describe
22、d inAppendix A. The standard excludes form-finishing machines, tumbler driers and shaped-article finishing machines designed for other than laundered garments. The test results provide an indication of a machine effect in terms of energy consumption, output rating of moisture removal and quality of
23、finish achieved on the fabric. The procedure can be employed to assess the effect of shaped-garment finishing machinery on textiles, measurement of aspects of machine performance or to assist in optimizing machine parameters. The following performance characteristics are evaluated: a) energy consump
24、tion expressed as units of energy per unit mass of moisture removed and/or as units of energy to process a reference garment; b) moisture removal performance expressed as the mass of moisture removed per unit time; c) quality of finish imparted to the article by the action of the machine. NOTEThe ti
25、tles of the publications referred to in this British Standard are listed on the inside back cover. 2 Definitions For the purposes of this British Standard the following definitions apply, together with the definitions in Parts 1 to 4 of BS6246. 2.1 bone-dry mass (BDM) (moisture content between0.5% a
26、nd1.0%.) The mass of textile articles after being dried in a specific manner, when successive determinations of mass, after several drying procedures, show no progressive change in mass of the textile greater than0.5% NOTESpecified drying procedures include repeatedly processing the articles in a he
27、ated tumbler, from which the exhaust air reaches a temperature of not less than 80 C and not more than 120 C, or repeatedly passing the articles through a heated flatwork ironing machine. These temperatures are appropriate to fabrics which constitute the test loads and test pieces specified in this
28、standard. 2.2 finish the appearance and feel of a fabric which has been smoothed by being subjected to the appropriate finishing process 2.3 fold crease a well defined deformation of the plane surface with clearly defined directional characteristics 2.4 heat setting the description given to a method
29、 used to impart a durable finish to garments manufactured from polyester/cotton mixture fabrics. In general the pressing is undertaken at a temperature of 190 C or higher, in the presence of steam, followed by rapid, vacuum assisted, cooling 2.5 press time the time that fabric is under pressure betw
30、een the head and buck of a polished head press 2.6 shaped article a textile item of clothing 2.7 wrinkle a form of fold deformation of the plane surface of the fabric, having a random nature, and typically shallow in form 3 Apparatus 3.1 Steam/water separator, plate or centrifugal type. 3.2 Pressure
31、 gauges 3.3 Energy measurement equipment, of either: a) a condensate measuring apparatus, with temperature measurement facilities, as described inAppendix C; or b) a recording and integrating steam flow meter. 3.4 Calibrated steam-pressure recording instrument, of appropriate range, with the mid sca
32、le of the instrument not less than the maximum operating pressure of the machine under test. 3.5 Integrating heat meter, capable of integrating the product of the flow of the heat-transfer-fluid with the temperature difference between inlet and outlet, to within2%. 3.6 Watt hour meter, capable of me
33、asuring electrical power consumption to within 0.1%. 3.7 Weighing devices, as follows: a) suitable for weighing individual test articles, with a maximum capacity of1kg and capable of weighing to within 0.5% of full scale deflection; b) suitable for weighing trolley loads of articles, with a capacity
34、 of at least250kg and capable of weighing to within 0.1kg.BS6246-5:1991 2 BSI 12-1999 3.8 Bags, to store damp articles and reduce loss of moisture, having approximate dimensions 500mm 1100mm, and being impermeable to moisture vapour. 3.9 Instant reading, contact thermocouple pyrometer, (small button
35、 type) with a temperature range from 100 C to 300 C. 3.10 Stop watch 3.11 Covered laundry trolley 3.12 Totalizing gas flow meter, complying with Part 6 of BS4161. 3.13 Crease inducing device (CID) 1)(seeAppendix B). 3.14 Wire hangers (seeAppendix D). 3.15 Viewing rig (seeAppendix D). 3.16 Comparativ
36、e finish reference photographs (seeAppendix C). 3.17 Lighting equipment (seeAppendix D). 3.18 Means of wetting out, hydro-extracting and tumbling test articles in accordance with the wash process (seeAppendix G). NOTEThis should be normal laundry equipment and the test organization would not be expe
37、cted to provide this equipment. 3.19 Means for measuring ambient temperature and relative humidity 3.20 Test meter, suitable for measuring current and voltage to within 0.1%. 4 Test articles 4.1 General Test articles shall be as described in4.2 to4.3. The fabric used for the test articles shall be s
38、ubjected to a crease resistant treatment prior to make-up of the test articles and the make-up process shall be completed with a hot-head finishing process in accordance with the fabric manufacturers instructions. Test articles made up as garments shall be numbered individually and the information n
39、oted. The articles shall be laundered three times before use in this test procedure and shall be discarded after a total of30laundering cycles. A record of the number of laundering cycles shall be noted and marked on the garment with indelible marking ink. NOTE 1Garments should be free from pucker a
40、nd other faults. NOTE 2For multiple tests it may be necessary to ensure that test articles are from the same batch. 4.2 Fabric test articles Twenty test articles shall be made up from white cotton test fabric reference WC280 of BS 1771-2. These shall be made up specially for each machine being teste
41、d as pieces to match the area and profile of the press table and shall have an area not less than90% of that of the press head. The test articles shall be overlock-stitched at the edges to give minimum hem and each article shall be marked with its bone-dry mass which shall also be recorded. NOTEIn t
42、he event that the area of press head exceeds that of the press table, note this information in the test report, together with the percentage cover achieved. 4.3 Garment test articles 4.3.1 Sixty garment test articles shall be made up as described inE.1.1 andE.2 toE.5. 4.3.2 Forty eight garment test
43、articles shall be made up as described inE.1.2 andE.2 toE.5. 5 Preliminary procedures 5.1 Machine identification 5.1.1 Record the details of the machine to be evaluated by completing the test report as listed inAppendix F. 5.1.2 Record the throughput rates recommended by the manufacturer. 5.2 Instal
44、lation of test apparatus 5.2.1 General Ensure that a pressure gauge (3.2) is fitted to the compressed-air feed-line to the machine. 5.2.2 Steam heated machines If the machine is steam heated, fit a steam/water separator (3.1) to the machine steam inlet, to ensure dry saturated steam conditions at th
45、e inlet to the heat exchange surfaces. If a steam flow meter is employed, fit a pressure gauge (3.2) to the condensate line. If condensate receiving apparatus 3.3 a) is used, fill the receiving tank with a predetermined quantity of cold water sufficient to ensure that, at the end of the test, the ta
46、nk water temperature does not exceed70 C to minimize the escape of flash steam. Fit the machine with a pressure recording instrument (3.4) in the steam input line to record supply pressure throughout the test. 5.2.3 Fluid heated machines On a machine employing a fluid heat transfer medium, fit an in
47、tegrating heat meter (3.5) across the flow and return lines. 1) For information on the availability of the crease inducing device write to Customer Information, BSI, Linford Wood Milton Keynes MK14 6LE.BS6246-5:1991 BSI 12-1999 3 Fit the machine with a Watt hour meter (3.6) where applicable. 5.3 Ins
48、tallation and test running conditions 5.3.1 The manufacturer of the test machine shall provide, wherever practicable, a complete statement of the installation conditions of the machine and the running conditions required. Each condition shall be expressed as a range within which the test procedure i
49、s acceptable rather than as a single specific value. 5.3.2 The manufacturer shall be informed and invited to inspect and check, and to certify in the test report that the machine and all relevant aspects of its installation and functioning under test conditions are satisfactory. 5.3.3 If the installation and/or test running conditions are outside the limits stated by the manufacturer, he or his authorized representative shall be invited to agree to or otherwise advise on the conditions. In the absence of such guida
