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A white 25 kg Bakers Flour sack with a wheat emblem; detail of the net-weight marking, sewn top, and heavy-duty woven body.
Two printed flour bags with green and beige branding for PP woven flour bags.
Two white flour sacks shown upright and flat with a wheat graphic; detail of the flat bottom, stitched edges, and clean food-packaging presentation.
A plain white flour sack with a simple stitched top; detail of the tight woven surface, side seam, and open-mouth format.
A white 25 kg Bakers Flour sack with a wheat emblem; detail of the net-weight marking, sewn top, and heavy-duty woven body.
Two printed flour bags with green and beige branding for PP woven flour bags.
Two white flour sacks shown upright and flat with a wheat graphic; detail of the flat bottom, stitched edges, and clean food-packaging presentation.
A plain white flour sack with a simple stitched top; detail of the tight woven surface, side seam, and open-mouth format.

PP Woven Flour Bags

XH Packaging manufactures PP woven flour bags for wheat flour, corn flour and other dry powdered food ingredients. Options include plain woven sacks, coated fabric, BOPP laminated flour bags and inserted PE liners. Specifications follow flour fineness, bulk density, net weight, moisture exposure, filling equipment, closure and presentation. Virgin PP is available for food-related packaging; the product-contact layer and required documents are confirmed per order.
  • The woven PP body provides reliable support for filling, lifting, stacking and bulk distribution.
  • Coating, BOPP lamination and inserted PE liners offer different approaches to powder and moisture control.
  • Virgin PP is available where a clean appearance and a defined food-packaging material specification are required.
  • Flexographic printing suits simple brand and product data; gravure-printed BOPP film supports detailed retail graphics.
  • Mouth, liner and bottom construction can be matched to manual or compatible automatic filling systems.
  • Dimensions and fabric weight are finalized after flour density, filled shape and pallet pattern are reviewed.
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Product Description
Product Details
6
Control Fine Powder Without Slowing Filling

Flour behaves differently from whole grain. Fine particles can migrate through weave gaps, stitching or an unsuitable mouth, while displaced air affects filling speed and shape. A tighter weave or coating reduces passage through the outer layer; an inserted PE liner creates a separate barrier. Liner presentation, top seal, bottom seam and deaeration must contain powder without trapping excessive air.
Moisture exposure is another design input. A plain woven outer sack may be suitable for a short, dry route when the flour is already contained by an approved inner layer. Longer transport or humid storage may justify a liner or laminated construction. The final choice should be checked through a trial fill and storage review rather than selected from surface appearance alone.

6
Confirm the Food-Contact Configuration

Some projects use the woven bag as an outer sack around a liner; others place a specified inner layer in direct contact with flour. State the contact layer, filling temperature, destination and required documents. Recycled PP, mixed material or CaCO3-based options, where offered, are limited to buyer-approved outer or non-direct-contact applications and cannot replace the approved contact material without written authorization.

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Match the Bag to the Filling Line and Pallet

Straight-cut, zigzag-cut and hemmed tops are available with single- or double-folded stitched bottoms. Additional cutting or hot-melt closing options can be reviewed after compatibility with the selected bag construction and equipment is confirmed. Mouth width should fit the filling spout and allow the liner to remain correctly positioned. A narrow opening can interrupt filling; an oversized bag can produce a slack, poorly shaped package that stacks unevenly.
Flour grades differ in bulk density, so nominal capacity cannot determine size by itself. Send a current filled sample or complete a trial on the actual line before approving new dimensions. Anti-slip treatment may be evaluated when pallet movement is a concern, with performance checked against the chosen surface and stack pattern.

6
Choose Printing for the Sales Channel

Flexographic printing is economical for a logo, flour type, net weight, lot-code field and straightforward handling information. BOPP laminated flour bags are better suited to detailed colors, photographic artwork and strong retail identification. The buyer supplies the approved barcode, ingredient or nutrition panel and market-specific legal copy. XH Packaging checks print area, color feasibility and production layout before printing is released.

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Factory Experience and Quality Control

XH Packaging has manufactured woven packaging since 2007. Its process covers PP tape production, weaving, printing, laminating and bag converting. Flour-bag checkpoints can include material and batch identification, dimensions, fabric weight, tensile performance, print clarity, ink adhesion, lamination peel strength, seam construction, applicable hygiene indicators and packing quantity. A signed sample, approved artwork and contact-material specification guide bulk and repeat production.

Item Available or Reference Options
Product type Flour packaging bags / PP woven flour bags
Material PP woven fabric; coating, BOPP lamination or inserted PE liner available
Material selection Virgin PP available; alternative formulations limited to approved outer or non-direct-contact use
Fabric weight 60–110 gsm reference range; define whether gsm applies to woven fabric or the finished laminated construction
Bag width 30–120 cm
Bag length Customized to flour density, net weight and filled shape
Nominal filling range 10–100 kg; final size and construction require filling review
Weave 7 × 7 to 14 × 14; counting method and unit stated in the approved specification
Top Straight cut, zigzag cut or hemmed top
Bottom Single- or double-folded bottom; single or double stitching
Printing Flexographic printing, or gravure-printed BOPP film; up to 8 colors subject to artwork review
Moisture and powder options Coating, BOPP lamination or inserted PE liner; liner specification set by the application
Optional treatment Anti-slip or UV treatment after the use condition is defined and capability confirmed
Packing 100 bags per small bundle; master bundles kept below 50 kg or arranged to an approved export format
Commercial terms MOQ, printing setup and production time quoted after construction, artwork, quantity and schedule review

Information Needed for a Quotation

  • Flour type, fineness, bulk density and target net weight
  • Product-contact layer and compliance documents required for the destination
  • Bag dimensions or a current filled sample and desired pallet pattern
  • Filling spout, line speed, liner presentation and top-closing method
  • Preferred plain, coated, BOPP laminated or PE-lined construction
  • Storage humidity, transport route and any anti-slip requirement
  • Artwork, barcode, color count, legal copy, quantity and delivery destination

Turn Your Mill’s Filling Details into a Reliable Bag

Send XH Packaging the flour specification, filled-bag sample, spout dimensions and required contact layer. We will review powder containment, moisture exposure, closing and print presentation together, then prepare a practical bag specification for your compliance and production teams.

PP Woven Flour Bags FAQ

1. What food-contact information can XH Packaging provide for flour bags?

XH Packaging can provide the document package agreed for the selected flour-bag construction. This may include material specifications or declarations, batch-identification records, and applicable test or hygiene reports. Send the product-contact layer and destination-market standard so the exact document list can be stated in the quotation.

2. How can a PP woven bag reduce flour leakage?

Use a tighter weave, coating or liner together with a seam and closure design developed for fine powders. The top closure and deaeration must contain flour without trapping excessive air or slowing filling. Send the flour fineness, line speed and closing method for trial planning.

3. Should I choose flexographic printing or BOPP lamination?

Choose flexographic printing for simple logos, product names and handling text, or gravure-printed BOPP film for detailed colors and retail graphics. The decision depends on artwork complexity, surface finish, quantity and budget. Send the artwork for a print-feasibility review.

4. Can bag dimensions be adapted to an automatic flour-filling line?

Yes, width, length and mouth construction can be developed around compatible equipment. Provide the spout size, line speed, target weight, liner position, closing method and desired filled shape. Test the proposed dimensions on the actual filling line.

5. Do flour bags always need an inserted PE liner?

No, a plain woven outer sack may be sufficient when flour already has an approved inner-contact layer and follows a dry, controlled route. A liner is useful when added powder or moisture control is required. Review the contact configuration, storage conditions, filling process and closure before choosing it.

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