Polypropylene (PP) bags are commonly used to package flour, but the quality of the flour can be affected by the type of packaging and storage conditions:
Hermetic packaging
Hermetic packaging materials, such as polypropylene bags combined with low-density polyethylene bags, are more effective than non-hermetic packaging materials, like woven polypropylene bags, at maintaining flour quality. Hermetic packaging materials reduce microbial growth, nutritional loss, and moisture content, while preserving the flour’s color, odor, and bulk density.
Lamination
To prevent flour from absorbing moisture, woven polypropylene bags can be laminated or lined with polyethylene.that called bopp plastic bags
Storage temperature
The shelf life of flour packed in polypropylene bags is shorter than flour packed in paper or polyethylene bags at the same temperature. For example, at 45 °C, flour packed in polypropylene bags has a predicted shelf life of 6.2 months, while flour packed in polyethylene bags has a predicted shelf life of 17 months.
Storage time
The quality of flour is affected by both the packaging type and the length of storage time.
PP bags are a popular choice for packaging flour because they are durable, flexible, and less opaque than polyethylene bags. They can also be custom-designed to meet specific requirements, such as with or without a liner, flat or anti-slip weaving, and in any color or transparent.
Shijiazhuang Boda Plastic Chemical Co., Ltd. is bopp bags manufacturers ,was established in 2001, and currently has a wholly-owned subsidiary named Hebei Shengshi Jintang Packaging Co., Ltd. We have a total of three of our own factories, our first factory It occupies over 30,000 square meters and more than 100 employees working there. The second factory located in Xingtang, the outskirt of Shijiazhuang city. Named Shengshijintang Packaging Co., ltd. It occupies over 45,000 square meters and around 200 employees working there. The third factory It occupies over 85,000 square meters and around 200 employees working there. Our main products are heat-sealed block bottom valve bag,bopp laminated bags,ordinary bags,jumbo bags etc.
As a professional manufacturer of the Polypropylene woven packaging bag, we make our bags:
1. In 100% virgin raw material
2. Eco-friendly ink with good fastness and bright colors.
3. Top grade machine to ensure a strong break-resistance, peel-resistance, stable hot air welding bag, ensuring the utmost protection of your materials.
4. From tape extruding to fabric weaving to laminating and printing, to the final bag making, we have strict inspection and testing to make sure a high-quality and durable bag for end users.
Our Service
1. We accept customized specifications and printing artwork.
2. We can make a design according to your requirements.
3. We promise to reply to your inquiry about product and price within 24 hours.
4. We can provide samples before mass production.
5. Good after-sale service offered.
6. We can ensure to make our business relationship confidential to any third party.Our advantage:1. We produce: export directly from the factory, advanced equipment from extrusion to packing, accept any custom order, quick delivery.
2. Good Service: “Customer first and reputation first” is the tenet we always adhere to .
3. Good Quality: strict quality control system, piece-by-piece inspection.
4. Competitive Price: low profit, seeking long-term cooperation.
2. We can make a design according to your requirements.
3. We promise to reply to your inquiry about product and price within 24 hours.
4. We can provide samples before mass production.
5. Good after-sale service offered.
6. We can ensure to make our business relationship confidential to any third party.Our advantage:1. We produce: export directly from the factory, advanced equipment from extrusion to packing, accept any custom order, quick delivery.
2. Good Service: “Customer first and reputation first” is the tenet we always adhere to .
3. Good Quality: strict quality control system, piece-by-piece inspection.
4. Competitive Price: low profit, seeking long-term cooperation.
Post time: Nov-26-2024