Buying jute canvas in Bangladesh
Jute canvas is a dense plain weave with a double warp, denser than single-warp hessian. India's standard IS 10036 sets it at 407 g/m² or more, with over 118 ends per dm. It goes into tarpaulins, covers, tents, mail bags and cover cloth for temporary structures, in Bangladesh and abroad.
Some sellers also call tight craft hessian 'canvas'. So Roptan asks each jute canvas manufacturer in Bangladesh to quote weight, ends and picks, warp type and finish, compares offers on those figures, and checks strength after proofing on cloth from your lot before delivery or shipment.
How to brief a jute canvas manufacturer in Bangladesh
- Weight and construction
- g/m² with a tolerance, double warp, and ends and picks per dm. India's IS 10036 fine canvas allows plus or minus 35 g/m² and plus or minus 4 ends and picks.
- Breaking load
- Warpway and weftway minimums on a 10 by 20 cm ravelled strip. The same fine canvas asks for at least 270 kgf warpway and 250 kgf weftway.
- Yarn
- Canvas is usually woven from medium coarse yarn of 7 to 12 lb per spyndle. India's IS 10036 leaves counts to the mill, so ask which it uses.
- Regain and oil
- India's IS 10036 sets a 14 percent contract regain, below the Indian hessian and sacking figures, and an oil limit cut from 6 to 3 percent in 2005.
- Finish
- Calendered one side or both, waterproofed, rotproofed or flame-retardant, and whether the warp is treated against fungus during starching, as India's IS 10036 prefers.
- Cut lengths
- India's IS 10036 calls 82 m or more a full cut, 37 to under 82 m a medium cut and 18 to under 37 m a short piece. Say how many a bale may hold.
Standards and tests for jute canvas
- IS 10036 (Parts I and II):1982
- India's jute canvas specification, reaffirmed, with one amendment of 2005. A neighbouring country's text, useful for construction, strength, regain, oil, cut lengths and faults; cite it or your own figures.
- Bangladesh canvas standard
- IJSG's list of national standards, from about 2005, shows a Bangladesh document for fine jute canvas, number unconfirmed. Ask BSTI for the current text before citing one.
- ISO 14184-1
- Free formaldehyde test used in research on flame-retardant jute. Ask for it, with a stated fire test, if treated canvas goes to a market that limits formaldehyde.
Lead times and delivery
Grey canvas in a construction the mill already weaves usually ships sooner than a new construction or a finished cloth. Proofing, flame-retardant treatment and the strength, water and fire tests that follow each add time, as does a sample for your approval. Roptan confirms the dates and the minimum in the quote.
Inside Bangladesh, canvas can come in loose lapped cuts tied with twine near the selvedges, in bales, or in rolls on cores. We deliver by covered truck, each piece marked with description, finish, length, contract mass and lot number, with the lot report and a VAT invoice (Mushak 6.3).
Buying jute canvas for export
Unbleached canvas ships under HS 5310.10 with other woven jute cloth. Primed painting canvas belongs to HS 5901, and a proofed cloth may move heading too, so your broker confirms the line. We quote FOB Chattogram or Mongla, with a REX statement for EU GSP.
Questions buyers ask
How is jute canvas different from heavy hessian?
By construction. Hessian is woven single warp and canvas double warp, which makes canvas denser; India's standard sets it at 407 g/m² or more. A heavy hessian can match canvas on weight alone, so ask for warp type and ends and picks, not only weight.
Can jute canvas be waterproofed?
It can be waterproofed to an agreed test. India's IS 10036 caps the proofing at half the cloth's mass and wants the proofed cloth to reach 90 percent of the strength set for unproofed canvas, because proofing adds weight and can cost strength. Write the water test and its pass level into the order.
Does untreated jute canvas burn?
Yes, readily. In a 2023 laboratory study, flame ran the full 15 cm length of untreated jute fabric in 21 seconds; flame-retardant treatment stopped the spread but significantly reduced strength. For covers and temporary structures, state the fire test and ask for strength after treatment.
Can I buy jute canvas for painting?
Artists have used hessian as an alternative to cotton or linen canvas. Prepared painting canvas is a separate customs heading, HS 5901, from plain woven jute. For art use, give the construction, the face you want and whether the cloth should come primed.
How soon will I hear back about hessian and jute fabric?
Within 48 hours of a complete requirement, with a price and a delivery date. A requirement is complete when it has the quantity, where it is needed and by when.
Who do I deal with?
With Roptan, when Roptan manages the order: we buy from the verified seller and deliver to you. With the supplier directly, when you post on the requirement board and choose a quote yourself.