ट ए स 32 / ट व द - अ थ य सरचन क लए ज ट आध रत अ न अवर धक सज वट एवम आ छ दन कपड - व श ट [ ळ ख: ट ए स32 (12786)]

Transcription

1 म नक भवन, 9 बह द रश ह ज़फर म ग, नई द ल Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi द रभ ष Website: Phones txd@bis.gov.in textiles.bis@gmail.com य पक प रच लन मस द ल ख षण स पन हम र स दभ दन क ट ए स 32 / ट स र प रध न वषय स म त, ट ए स व वभ ग स म त क च रखन व ल सभ सदस य 2 ट ए स 32 क सभ सदस य 3 च रखन व ल अन य नक य मह दय, क पय न न ल खत स ल न ल ख द ख : 1 व द - अ थ य सरचन क लए ज ट आध रत अ न अवर धक सज वट एवम आ छ दन कपड - व श ट [ ळ ख: ट ए स32 (12786)] क पय इस म नक मस द क अवल कन कर और अपन स म तय यह बत त ह ए भ ज क य द यह मस द र य म नक क प म क शत ह ज य त इन पर अमल करन म आपक यवस य अथव क र ब र म य क ठन इय आ सकत ह स म तय भ जन क अ तम त थ: सम म तय, य द क ई ह त क पय अध हस त र क उपर ल खत पत पर स लग न प म भ ज य द क ई सम म त प त नह ह त ह अथव सम म त म क वल भ ष स ब ध ट ह ई त उपर क त ल ख क यथ वत अ तम प द दय ज एग य द सम म त तकन क क त क ह ई त वषय स म त क अध य क पर मश स अथव उनक इच छ पर आग क क य व ह क लए वषय स म त क भ ज ज न क ब द ल ख क 1

2 अ तम प द दय ज एग यह ल ख भ रत य म नक ब य र क व बस इट पर भ उपलब ध ह धन यव द भवद य स लग न : उपर ल खत ( अवध कश र ) व नक एफ एव म ख (व द) 2

3 म नक भवन, 9 बह द रश ह ज़फर म ग, नई द ल Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi द रभ ष Website: Phones txd@bis.gov.in textiles.bis@gmail.com DRAFT IN WIDE CIRCULATION DOCUMENT DESPATCH ADVICE Ref. Date TXD 32/T TEXTILES PROTECTIVE CLOTHING SECTIONAL COMMITTEE, TX 32 INTERESTED MEMBERS OF TEXTILE DIVISION COUNCIL, TXDC ALL MEMBERS OF TX 32 ALL OTHER INTERESTED Dear Sir(s) Please find enclosed the following draft: 1) TEXTILES FLAME RETARDANT JUTE BASED DECORATIVE AND COVER FABRIC FOR TEMPORARY STRUCTURE SPECIFICATION [DOC : TX 32 (12786)] Kindly examine this draft standard and forward your views stating any difficulty which you are likely to experience in your business or profession, if this is finally adopted as Indian Standard. Last date for Comments: 17 August 2018 Comments, if any may please be made in the enclosed format and mailed to the undersigned at the above address or at textiles.bis@gmail.com or txd@bis.gov.in. In case no comments are received or comments received are of editorial nature, you will kindly permit us to presume your approval for the above document as finalized. However, in case of comments of technical in nature are received then it may be finalized either in consultation with the Chairman, Sectional Committee or referred to the Sectional Committee for further necessary action if so desired by the Chairman, Sectional Committee. 3

4 The document is also hosted on BIS website Thanking you, Yours faithfully, Encl : As above. (Awadh Kishore) Scientist F & Head (Textiles) 4

5 For BIS use only BUREAU OF INDIAN STANDARDS (Not to be reproduced or used as the Indian Standard without the prior permission of BIS) Draft Indian standard 5 DOC: TX 32 (12786) TEXTILES FLAME RETARDANT JUTE BASED DECORATIVE AND COVER FABRIC FOR TEMPORARY STRUCTURE SPECIFICATION FOREWORD (Formal Clauses shall be added later) With advent of different variety of jute based wall cover and decorative fabrics after diversification of Jute and Jute based other products, it is felt essential to develop separate fire retardant Standard for Jute based cover fabrics for temporary structure including conventional Jute cover fabrics, Jute based finer variety of decorative and furnishing fabrics and Jute -cotton union fabrics, tent /wall cover fabrics and Jute based pandal fabrics for temporary structure etc. For protection against fire retardant performance of such Jute based fabrics need to be enhanced and tested. Hence the requirement of establishing new Indian standard for Fire Retardant Jute based cover fabric and decorative fabric used for temporary structure and other diversified end uses is justified. Ministry of Textiles, Govt. of India, through Jute Commissioner s office, Govt. of India has entrusted Dept. of Jute and Fibre Technology (DJFT), Institute of Jute Technology (IJT), University of Calcutta (CU) for doing necessary R & D to develop Performance effective Fire Retardant Finish of Jute and to establish a new standard for Fire Retardant Jute based cover fabric and decorative fabric for temporary structure and other diversified end uses. As these Jute Based fabrics does not demand or does not require frequent washing and hence requirement of very high degree of wash fast for such Jute based fire retardant fabric is not felt essential. But considering the end uses as Cover fabric and decorative home textiles for temporary structure it has become essential to find a semi-durable to moderately durable fire retardant formulation for jute with some degree of wash durability up to 5 wash cycles for different fire retardant formulations to be applied on jute. Fire protective finish by different fire retardant agents for cotton and synthetics has been reported during last few decades by many researchers in literature and there are relevant Indian Standard for it but there are scanty reports on fire retardant finish for jute fabrics. The major problems associated with fire retardant finishing treatment of jute are higher chemical add-on, noticeable loss in tensile strength and yellowing etc. besides to achieve suitable fire retardant performances unlike cotton and synthetic fabrics. Moreover, most of such fire retardant formulations requires high dosages of relevant chemicals and are semi durable in nature. Hence by prolong R & D for two years, DJFT, CU has developed both semi durable as well as wash fast Fire Retardant formulations for Jute fabrics with a field trail at Ambica Jute Mills, Belur, Howrah. Testing of these fire retardant jute fabrics have been carried out at DJFT, IJT, C U and also interlab test trial have been done at NITRA, Ghaziabad, as COE in Protective Textiles for authentication and confirmation of test results from an outside lab. Few examples for application procedure of fire retardant treatments is given in Annex C for guidance only. 1 SCOPE This standard prescribes constructional, performance and other requirements for flame retardant jute based decorative and cover fabrics for temporary structures. These Jute or Jute-Cotton Union Fabrics

6 ( natural-grey, bleached and dyed or printed jute based fabrics) are usually used for wall decoration, cover and decoration purpose in temporary structure (pandal) and also in other semi-permanent structure like temporary tent etc. 2 REFERENCES The standards listed in Annex A contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated in Annex A. 3 TERMINOLOGY For the purpose of this standard, definitions given in IS shall apply. 4 MATERIALS 4.1 Fabric Construction The basic plain woven bleached jute fabric shall be flame retardant. The construction of jute based furnishing fabric may be either Hessian or canvas type as per IS 2818 or IS (Parts 1 & 2); or jute-cotton union fabrics as per standard plain weave. Jute/Cotton (J/C) union furnishing fabric after conventional desizing, scouring and 2% H 2 O 2 bleaching and having 42 tex cotton yarn as warp and 185 tex jute yarn as weft having 80 ends/dm and 70 picks/dm with area density of 280 g/m 2 and thickness 0.70 mm (with 75% Jute weft yarn and 25% cotton warp yarn by weight in the said jute / cotton union fabric or as specified and mutually agreed between buyer and seller may be used for specific end uses. It shall be so made, as to be used for wall decoration, cover and decoration purpose in temporary structure (pandal) and also in other semi-permanent structure like temporary tent etc. 5 REQUIREMENTS The FR jute fabric or jute/cotton union fabric shall meet the requirements specified in 5.1 to 5.1 Breaking load The breaking load of FR jute fabric or jute/cotton union fabric for warpway and weftway shall not be less than 40kgf and 20kgf respectively when tested in accordance with IS 1969 (Part 1) on a specimen of 5 cm width. 5.2 Tear Strength The tear strength in longitudinal and traverse directions of the FR jute fabric or jute/cotton union fabric when tested in accordance with the IS 6489 (Part1) shall not be less than 32 kg/cm. 5.3 Dimensional change on soaking The dimensional change on soaking in warpway and weftway direction of the FR jute fabric or jute/cotton union fabric when tested in accordance with the IS 2977 shall be 2 percent maximum. 6

7 5.4 ph Value ph value of the aqueous extract of FR jute fabric or jute/cotton union fabric when tested as per the method specified in IS1390 shall be 4.0 to Residual Formaldehyde Residual formaldehyde shall not exceed 300ppm (300 mg/kg) when tested as per the method specified in IS (Part 1). 5.6 Flame Resistance Performance Requirements FR jute fabric or jute/cotton union fabric shall meet the flammability requirements as specified below when tested in accordance with Method A of IS 11871: a) Ignition Time No test specimen shall continue to flame for more than 10 seconds for 45 0 Flame Test and 12 seconds for Vertical Flame Test after the igniting flame is removed. b) After glow After glow time shall not be more than 10 seconds for 45 Flame Test and 12 seconds for Vertical Flame Test. c) Char length - The average char length of the material, which chars on the six specimens, shall not exceed 30± 10 mm and the maximum char length in any one specimen shall not exceed 50 ± 20 mm. There shall not be any burn through in the test specimen. 5.7 Toxicity Index The toxicity Index of gases evolved during burning of 100 g of FR jute fabric or jute/cotton union fabric shall be 1.5 Max when tested by the method prescribed in Annex D of IS NOTE This requirement is to be tested on the FR jute fabric or jute/cotton union fabric as delivered by the supplier before any washing. 5.8 Visibility Due to Smoke Released on Combustion The visibility due to smoke released on combustion of FR jute fabric or jute/cotton union fabric shall conform to either Class A or Class B when tested by the method specified in IS NOTE This requirement is to be tested on the FR jute fabric or jute/cotton union fabric as delivered by the supplier before any washing. 5.9 Limited Oxygen Index (LOI) FR jute fabric or jute/cotton union fabric shall have the LOI value of 32 % for the treated fabric before washing and at least 28 LOI value after 5 wash cycle as per IS Resistance to spread of flame FR jute fabric or jute/cotton union fabric shall meet the requirement for flame spread of Class 1 as specified in IS (Part 1) Durability of Fire Retardant Property 7

8 The FR jute fabric or jute/cotton union fabric shall conform to the requirements as specified in 5.6, 5.9 and 5.10 after 5 washing cycles or 10 dry cleaning cycles. The washing and dry cleaning shall be carried out by the method specified in Annex B. Note- As jute fabrics/ FR jute fabrics are seldom washed, FR performance up to 5 cycles of wash has been considered as satisfactory. 6 PACKING AND MARKING 6.1 Packing The fabrics shall be packed in polythene packets unless otherwise agreed to between the purchaser and the supplier. 6.2 Marking The fabrics shall be marked with the following: a. Length and width of the material b. Mass of the fire retardant jute fabric c. Flame retardant jute fabric d. Indication of the source of manufacture/ manufacture s name or trade mark, if any e. Batch number f. Date of manufacture (month and year) BIS Certification Marking The FR jute fabric or jute/cotton union fabric may also be marked with the Standard Mark The use of the Standard Mark is governed by the provisions of the Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of the conditions under which a license for the use of the Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards. 7 SAMPLING AND CRITERIA FOR CONFORMITY 7.1 Lot All the flame retardant protective jute fabric of the same size, style and made from the same material and produced under similar conditions of manufacture shall constitute a lot: All the lots shall be tested separately for testing the conformity of the lot to the requirements of the specifications. 7.2 The number of samples to be drawn shall depend upon the size of the lot and shall be as per Table 1. The samples shall be selected at random in accordance with IS

9 Table 1 Scale of Sampling Lot Size Sample Size Subsample and above Number of Tests and Criteria for Conformity The lot shall be considered as conforming to the above requirements, if there is no failure. Otherwise, the lot shall be rejected Out of the samples already found satisfactory as per 7.3.1, a sub-sample as given in col 3 of Table 2 shall be selected. This sub-sample shall be further tested for the requirements of flame resistance performance The lot shall be considered as conforming to the requirements of the specification, if no deficiency as fund in this sub sample for Fire Retardant performance as stated above. ANNEX A (Clause 2) LIST OF REFERRED INDIAN STANDARDS IS No. Title 1380 : 1980 Specification for Ink, Finger Printing, Black ( First Revision ) l390 : 1983 Methods For Determination of Ph Value of Aqueous Extracts of Textile Materials ( First Revision ) 1969 (Part 1) : 2009 Textiles Tensile properties of fabrics Determination of maximum force and elongation at maximum force : Part 1 Strip method (third revision) 2818 : 2015 Textiles Hessian Specification ( Third Revision ) 9

10 2977:1989 Fabrics (Other than Wool) - Method for Determination of Dimensional Changes on Soaking in Water ( First Revision ) 3361:1979 Method for determination of colour fastness of textile materials to washing: Test 2 ( First Revision) 4905 : 2015 Random Sampling and Randomization Procedures ( First Revision ) IS 6489 : (Part 1 ) : 2011 Textiles -- Tear Properties of Fabrics Part 1 Determination of Tear Force Using Ballistic Pendulum Method(Elmendorf) ( Second Revision ) : 1986 Methods for Determination of Flammability and Flame Resistance of Textile Fabrics 13501: 1992 Textiles- Determination of Flammability by Oxygen Index IS (Part 1 ) : 1998 Textiles - Determination of Formaldehyde Part 1 Free Formaldehyde IS (Part 1) : 2005 Textiles Burning behaviour of curtains and drapes Part 2 Measurement of flame spread of vertically oriented specimens with large ignition source IS 15741:2007 IS : 2008 B-1 Washing treatment B-1.1 APPARATUS Textiles Resistance To Ignition Of Curtains And Drapes Specification Textiles - Method for Determining Deterioration of Visibility Due to Smoke Released on Combustion of Materials Annex B (Clause 5.11) Washing and dry cleaning procedure Washing Machine With temperature control facility. B-1.2 REAGENTS Soft Water Neutral Detergent B-1.3 PROCEDURE Prepare a wash liquor of neutral non-ionic detergent solution of concentration 5 g/1 using soft water. Adjust the washing machine to a temperature of 40 C. Place the fabric specimen is the wash liquor mentioning MLR 1:50 in a Lander-O- Meter. Start the washing at the set temperature for a period of 30 minutes to get one wash cycle. Remove the fabric, rinse with the same quality of water, dry and condition before evaluating the requirements as specified in 5.6, 5.9 and B-2 Dry Cleaning Treatment Place the fabric in a container with a dry cleaning solvent to get a material to liquor ratio of 1 : 50. Seal the jars, clamp in the launder-o-meter and run at room temperature for 30 minute. Drain and repeat the above process 2 times to complete one cycle. Remove the specimen, blot thoroughly, air dry and condition before evaluating the requirements as specified in 5.6, 5.9 and

11 ANNEX C (Foreword) Example 1 EXAMPLE FOR APPLICATION PROCEDURE OF FIRE RETARDANT TREATMENTS Process flow chart for the Semi-Durable Fire Retardant finish Sulfamate Based Recipe Preparation of 20% Urea and 15% Ammonium Sulfamate Solution Padding Mangle Trough is set with prepared Urea and Sulfamate solution Fabric is padded with 20% urea solution and 15% Ammonium Sulfamate solution in Padding Mangle (2 Dip & 2 Nip with 1005 Expression) The padded jute fabric is then Dried in CDR at 100 Degree Celsius The Dried jute fabric is then Cured in curing Chamber at 140 Degree Celsius for 5 mins Example 2 Process Flow Chart for the Semi-Durable Fire Retardant Finish Phosphate Based Recipe Preparation of 15% Urea and 10% DAP Solution Padding Mangle trought is set with prepared Urea and Phosphate solution Fabric is padded with 15% Urea and 10% DAP Solution in Padding Mangle (2 Dip & Nip with 100% Expression) The Padded jute Fabric is then Dried in CDR at 100 Degree Celsius The Dried jute Fabric is then Cured is curing Chamber at 140 Degree Celsius for 5 mins 11

12 Example 3 Process Flow Chart for the Durable Fire Retardant Finish Stannate Based Recipe Preparation of 20% Sodium Stannate Padding Mangle Trough is set with prepared Stannate Solution Bleached (Peroxide Bleached) Jute fabrics is padded with 20% Sodium Stannate Solution in Padding Mangle (2 Dip & 2 Nip with 100% Expression) The padded Jute Fabric is then dried in CDR at 100 Degree Celseus Preparation of 20% Boric Acid Solution with Hot Sodium Stannate treated Fabric is further padded with 20% Acetic Acid in Padding Mangle (2 Dip & 2 Nip with 100% Expression) Example 4 The padded Jute Fabric is then dried in CDR at 100 Degree Celseus Particles Preparation of Nano Zinc Oxide The zinc acetate dehydrate, sodium hydroxide, was purchased from Loba Chemicals. ZnO nano powder was prepared by co-precipitation method. 50 gm of zinc acetate dihydrate was put into 1000 ml of distilled water under vigorous stirring. After 10 min stirring, 2 M NaOH aqueous solution was introduced into the above aqueous solution, resulting in a slurry like white solution, which were then placed on magnetic stirrer for stirring for 2 hr. The precipitate was then taken out and washed repeatedly with distilled water followed by ethanol to remove the impurities for the final products. Then a white powder was obtained after drying at C in vacuum oven for 6 hrs. The white precipitate is then calcinated at C for 4 hrs in Muffle furnace in order to get purified Zn nano powder. 1 Application of ZnO Nano particles 0.1gm ZnO Nano powder was weighed and made dispersion with 50 ml BS16. Distilled water is added in this and the solution is made up to 500 ml. Out of this, 250 ml is taken out in a tray and the bleached jute fabric is kept for 30 minutes. Then the fabric is padded through the padding Mangle with the pressure of 20Kg/cm 2.The fabric is then taken out and dried at 90 0 C. 12

13 FORMAT FOR SENDING COMMENTS ON BIS DOCUMENT (Please use A4 size sheet of paper only and type within fields indicated. Comments on each clause/subclause/table/fig. Etc. be stated on a fresh box. Information in Column 2 should include reasons for the comments and suggestions for modified wording of the clauses which the existing text is found not acceptable. Adherence to this format facilitates Secretariat s work) NAME OF THE COMMENTATOR/ORGANIZATION. DOCUMENT NO : [Doc :TX 32(12786)] BIS LETTER REFERENCE NO. : TX 32/T-42 Item, Clause Sub-Clause No. Commented upon (Use Separate Box afresh) Comments Specific Proposal (Draft clause to be add/amended) Remarks Technical References on which (2), (3), (4) are based (1) (2) (3) (4) (5) 13