U. K. GANGOPADHYAY EXECUTIVE DIRECTOR, SASMIRA, MUMBAI National Seminar on Role of Standards in...

U. K. GANGOPADHYAYEXECUTIVE DIRECTOR, SASMIRA,

MUMBAI

National Seminar on Role of Standards in Promotion of Technical Textiles - 30.11.2011

STANDARDS REQUIRED FOR AGROTECH

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Agrotech Products


• Special textiles that are manufactured for agricultural applications• These textile structures are used as controlling environment for plants / animals in

applications like– Agriculture– Horticulture – Animal husbandry

• The agrotextile products for which standards exists:1. Pond lining2. Insect nets3. Fishing nets4. Leno bags for packaging

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Agrotech Products


• Agrotextile products for which standards are required:

1. Shade nets2. Wind shield nets3. Bird nets4. Crop covers5. Harvesting nets6. Mulch mats 7. Anti-hailstone nets8. Packing sacks and wrappers9. Cut grass collection bags10. Underlay fabrics11. Udder support nets

Existing Status of Standards for Agrotech Products


There is a lack of clear differentiation of Agrotextile products being used for the same application.

The nomenclature of these products did not exist Under Textiles.

Barring apart a few products, there did not exist any specification for these products, nationally as well as internationally.

There is a lack of guidelines for ideal set – up and processing of Agrotextile products as regards, raw material, machinery, process parameters, quality, cost, etc.

The Center of Excellence, Agrotech has addressed these problems.

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COE Agrotech Initiatives


A Committee for Formulation of standards for Agrotextiles comprising of industry, research and academia has been formed under recommendation of Ministry of Textiles to expedite the process of standardization for Agrotech products.

The objectives of this Committee are: Studying the relevance of existing Indian standards for

Agrotech products Need for amendment of existing standards in the

present context Identifying the areas where standards for Agrotech

products do not exist Writing down standards and specifications for Agrotech

products that need to be proposed.

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Road Map for Standards


A comprehensive process is being followed to derive at the draft standards.

The process followed is as under:

Collection of data for various Agrotextile productsDeliberation on the data collected with a draft of standard

for the product specification at the meeting with Standards Committee for Agrotech

Revised draft as per the suggestions of the CommitteeWide Circulation of the draft to the manufacturers of the

products across the countryModification based on the feedback from the manufacturers.Discussion of the modification with the Committee Incorporation of the suggestions from the Committee and

preparation of the final draft

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EXHAUSTIVE LIST OF STANDARDS TO BE FORMULATED FORAGROTEXTILE PRODUCTS UNDER BIS (Short Term Schedule)


Sr. No. Standards required for

following products

Status

1 Glossary for Agrotextiles Submitted and circulated

2 50 % shading Shade Nets Submitted and completed wide circulation



5 100 gsm woven Ground covers Discussed at the COE Agrotextile standards committee, to be ready by

October, 2011

6 Ground covers 60 gsm Nonwoven To be discussed, January, 2012

7 Knitted Bird Nets ½” mesh To be discussed, April, 2012

8 Knitted Bird nets 1” mesh To be discussed, July, 2012

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The Committee for Formulation of Standards for Agrotextiles started with glossary for Agrotextile products and has taken up formulation of standards for products where the Indian standards do not exist till date.

EXHAUSTIVE LIST OF STANDARDS TO BE FORMULATED FORAGROTEXTILE PRODUCTS UNDER BIS (Short Term Schedule)


9 Knitted Bird Nets 1½” mesh To be discussed, October, 2012

10 Knitted Bird Nets 2” mesh To be discussed January, 2013

11 Knotted bird nets 1” mesh To be discussed April, 2013

12 Knotted bird nets 2” mesh To be discussed, July, 2013

13 Harvesting Nets for mechanised harvesting To be discussed, October, 2013

14 Harvesting nets for manual harvesting To be discussed, January, 2014

15 Nonwoven fruit protective covers To be discussed, April, 2014

16 Nonwoven Crop covers To be discussed, October, 2014

17 Knitted crop covers To be discussed, January, 2015

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EXISTING STANDARDS


Sr. No.

Standards required for following products

Status

1 Insect nets Existing in IS to be amended as per current requirement

2 Woven packing sacks Existing in IS to be amended as per current requirement

3 Leno bags for packaing Existing in IS to be amended as per current requirement

4 Vermicompost beds Existing in IS to be amended as per current requirement

5 Geo Jute mats Existing in IS to be amended as per current requirement

6 Fishing- nets - designation of netting yarns in the tex system

Existing in IS to be amended as per current requirement

7 Fishing nets — netting — basic terms and definitions


8 Fishing Nets — Description And Designation Of Knotted Netting


9 Fishing nets – cutting knotted netting to shape (“tapering”)


10 Fishing nets - determination of breaking load and knot breaking load of netting yarns


11 Fishing nets — determination of mesh breaking force of netting


12 Jute Hortipots Existing in IS to be amended as per current requirement

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DRAFTED STANDARDS FORWARDED TO BIS THROUGH OFFICE OF TEXTILE COMMISSIONERNOMENCLATURE FOR AGROTEXTILESSPECIFICATION FOR SHADE NETS

50 % SHADE NETS 75 % SHADE NETS 35 % SHADE NETS

SPECIFICATION FOR 100 GSM WOVEN GROUND COVER

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Draft Indian StandardTEXTILES – NOMENCLATURE FOR AGROTEXTILES

FOREWORD

Agrotextiles are fabrics (woven, nonwoven or knitted) used in agriculture, horticulture, forestry and fishing. They can include fishnets, shades, ground covers, thermal screens and crop covers. Common uses for agrotextiles are protecting livestock, maintaining soil humidity and temperature, eliminating the impact of pests and general shading.

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NOMENCLATURE PROPOSED FOR


Agrotextiles Bird protection netCherry coversDrip IrrigationFishing NetsGreen/poly house Ground coversHail Protection fabrics/ Snow shieldsHarvesting nets HorticultureInsect nets Knitted fabricsLeno weave

Monofil NetsMulch matsNets for covering pallets Nonwovens fabricsPlant netsPlastic mulch Root ball netShade NetsTape nets Turf protection netWindshieldWoven fabrics

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Draft Indian Standard Specification

TEXTILES – SHADE NETS FOR AGRICULTURE APPLICATION – SPECIFICATION

FOREWORDSunlight is the natural variant which affects the growth of plants. Every plant shows optimum growth and yield under regulated exposure to light and heat. In order to protect fields and greenhouses from the intense solar radiation for healthy plant growth and good harvest, Shade nets with open mesh construction are used to control sunshine and amount of shade required. These shade nets are open mesh structure textiles used to cover the shade houses for regulating the sunlight exposure of plants inside. The mesh size of the nets is variable decides the shading percentage provided. Functionally, these net fabrics allow the air to flow freely. So that the excess heat does not built up under the screen. Also these nets provide benefits of reducing damage to crop from wind, conserve water by reducing evaporation and protection from birds, insects and excessive hail and rains. The selection of shade net depends upon the percentage of shading required for the crop being cultivated. Apart from application horticulture, floriculture, these nets also find usage in nurseries, vermiculture shed, cattle sheds, drying of agro products and also general purpose shading.

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Sr. No

Characteristic(s)

Requirements Methods of Tests

1 Weight/square meter g

Minimum 90 IS 1964, ISO 7211/6

2 Tensile Strength N

250 – 350 ISO 13934, IS 1969

3 Bursting strength, kg/cm2

Minimum 5.5 IS 1966 - 1975

4 UV Accelerated exposure testing

Less than 2 % Annex BIS 1969

5 Light shading percentage

50 - 56 Annex CASTM D1003

6 Colour fastness to light

Minimum 4 IS 2454 – 2008

Table 1. Requirements of Shade nets from knitted Polyethylene 50 % Shading net Polyethylene Tape x Tape construction

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Sr. No

Characteristic(s) Requirements Methods of Tests


Minimum 120 IS 1964, ISO 7211/6

2 Tensile Strength N 350 - 450 ISO 13934, IS 1969


Minimum 6.0 IS 1966 - 1975






Minimum 4 IS 2454 – 2008

Table 1. Requirements of Shade nets from knitted Polyethylene75 % Shading net Polyethylene Tape x Tape construction

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Sr. No



Minimum 150 IS 1964, ISO 7211/6

2 Tensile Strength N

Min. 500 ISO 13934, IS 1969


Minimum 8.0 IS 1966 - 1975






Minimum 4 IS 2454 – 2008

Table 1. Requirements of Shade nets from knitted Polyethylene90 % Shading net Polyethylene Tape x Tape construction

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Draft Indian Standard Specification

TEXTILES – 100 gsm WOVEN GROUND COVERS FOR HORTICULTURE APPLICATION – SPECIFICATION

FOREWORDGround cover fabric is a durable and resilient fabric and is ideal product for creating artificial paving and weed free surfaces around crops in gardens, nurseries, farms and greenhouses. Ground cover is one of the most important Agrotextile products for promoting the growth of crops. It provides weed suppression and ground moisture conservation, whilst allowing roots to breathe and water, air and nutrients to permeate through. This maintains higher soil temperatures and promotes more rapid and even plant growth. It is a woven fabric of UV stabilized polypropylene tape yarns to survive through the effect of continuous exposure to sunlight.

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Sr. No


Weight/square meter, g 100 IS 1964, ISO 7211/6Thickness, mm 0.28 IS 7702, ISO 9863-1&2Tensile Strength (Grab), Kgf Warp way Weft way

6535

ISO 13934, IS 1969

Tear strength woven, kgf Warp wayWeft way

30 20

IS 13937 – 1 & 2

Air Permeability, cft/ft2/s 20 IS 11056, ISO 9237Puncture Resistance, kgf Index 30

-ISO 12236

UV Accelerated exposure testing, % Strength retained

70 IS 1969

Water permeability lt/sq.m/sec

7 IS 14324, ISO/CD 10776, 11058

Water vapor permeability, gm/m2/day

730 ISO 11092

Table 1. Minimum Specification for 100 gsm Woven Ground Covers from PP/PE

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DRAFTS PREPARATION UNDER PROGRESS


KNITTED BIRD NETSNONWOVEN GROUND

COVERSNONWOVEN CROP COVERS

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U. K. GANGOPADHYAY EXECUTIVE DIRECTOR, SASMIRA, MUMBAI National Seminar on Role of Standards in...

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