What is Sift Proof FIBC Bulk Bag? How is it manufactured?

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What is Sift Proof FIBC Bulk Bag? How is it
manufactured?
Sift-proofing is a common term in the FIBC
industry and is frequently used with FIBC Bulk
Bags. The common laymans understanding of sift
proofing in FIBC bags is the prevention of the
external contaminants into the bags content, and
further interpretation is the prevention of
leaking of fine products from the bag. In this
blog, we will walk you through what a Sift-Proof
FIBC bag is, how it is manufactured, and what the
advantages are to give you a crystal-clear
understanding of the Sift-Proof FIBC bags to help
you make an informed purchase decision.
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What is Sift-Proofing?
Sift-Proofing is one of the critical steps taken
by FIBC Bag Manufacturers to protect the bags
content from external contaminants such as
moisture intrusion, dust, and more dirt sifting
into the bag and damaging the materials inside
the FIBC Bag. It blocks the leakage of materials
inside the bag from sifting through the bags
seams and saves the product manufacturer from the
loss of content inside the bag. The higher loss
of content by sifting through the bags stitched
seams can lead to safety hazards.
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Sift-Proofing is a method in which FIBC Bag
Manufacturers stitch the bag with sift-resistant
material, also known as filler cord. For further
fine material, customers opt for triple sift
proof which involves double filler cord felt in
between the seams. Anti-sift sewing is one of
the efficacious methods used by FIBC Bags
Manufacturers for sift-proofing FIBC Bulk Bags.
This process involves sewing filler cord into the
bags seams. The operator keeps the fillercord
along the seam of the bag while sewing to fill
the spaces by the needle hole.
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What is a Sift-Proof FIBC Bulk Bag Seam?
FIBC Bulk Bags are renowned for their durability,
versatility, and strength for storing, handling,
and transporting large quantities of products
materials, such as powdery substances, fine grain
materials, sugar, flour, sand, cement, minerals,
and more. These fine materials and powdery
substances are susceptible to leaking out and
sifting through the bags seams, resulting in
product loss. Sift-proofing seams prevent the
sifting and leaking of materials and substances
through the bag seam. Note For extremely fine
materials, attaching FIBC liners inside the FIBC
Bulk Bag is recommended for complete
sift-proofing and product loss.
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How Sift-proof FIBC Bags are manufactured?

• The FIBC Bulk Bag seams have two functions
• They create a robust bond between any two panels
  to give strength to the bag.
• Prevent materials powdery substances from
  sifting through the bags seam, if filler cord/
  felt is used.
• While choosing FIBC Bulk Bags, you first need to
  decide whether you want a sift-proof FIBC Bag or
  additional inner liners for complete
  sift-proofing.

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A thick cord (filler cord) is sewn into the bags
fabric next to the seams to make a sift-proof
seam. The thick cord creates a tighter and firm
bond between side panels and functions as an
additional protection layer for powdery
substances and fine-grain materials. In FIBC
Bulk Bags, there can be Single, Double or Triple
sift-proof seams. In case of Triple sift proof
bags, an additional layer of Non-woven felt is
added between the seams with double filler cord.
These make the bag robust and is the ideal
storing option for fine-grain materials because
of their bulk density.
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Conclusion
After going through the blog, you will have a
firm clarity about what sift-proofing is, what is
sift-proof FIBC bag is, and how it is
manufactured, and you are all set to make an
informed decision for buying Sift-Proof FIBC Bulk
Bags. At Umasree Texplast, we manufacture and
sell Sift-Proof FIBC Bulk Bags and are a global
exporter of FIBC bags. Contact us for a quotation
or questions related to the manufacturing of
Sift-Proof FIBC Bulk Bags, and one of our sales
representatives will contact you. If you need
clarification about whether to buy Sift-Proof
FIBC Bulk Bags or FIBC Liners, contact us at
9909957564 or email us at mail_at_umasreee.com and
we will assist you in making an informed buying
decision according to your requirement.
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Umasree is an ISO 90012015 ISO 220002005
certified FIBC company (Food Safety Management)
and Government of India Recognized Export House.
All our FIBC Bags are manufactured with
compliance to ISO Standards Certifications. Con
tact us today to get the best quotation for UN
Certified FIBC Bags by calling on 9909957564 or
emailing us at mail_at_umasreee.com.
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